CN114103277A - Negative Poisson ratio screen cloth with protective knee structure - Google Patents

Negative Poisson ratio screen cloth with protective knee structure Download PDF

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Publication number
CN114103277A
CN114103277A CN202111136818.2A CN202111136818A CN114103277A CN 114103277 A CN114103277 A CN 114103277A CN 202111136818 A CN202111136818 A CN 202111136818A CN 114103277 A CN114103277 A CN 114103277A
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layer
elastic
tensile
negative poisson
holes
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CN202111136818.2A
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CN114103277B (en
Inventor
苏成喻
柯文新
邓魏永
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FUJIAN JINJIANG HUAYU WEAVING CO LTD
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FUJIAN JINJIANG HUAYU WEAVING CO LTD
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/02Layered materials
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/12Hygroscopic; Water retaining
    • A41D31/125Moisture handling or wicking function through layered materials
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/14Air permeable, i.e. capable of being penetrated by gases
    • A41D31/145Air permeable, i.e. capable of being penetrated by gases using layered materials
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/18Elastic
    • A41D31/185Elastic using layered materials
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/24Resistant to mechanical stress, e.g. pierce-proof
    • A41D31/245Resistant to mechanical stress, e.g. pierce-proof using layered materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028Net structure, e.g. spaced apart filaments bonded at the crossing points
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • B32B7/022Mechanical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51Elastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/724Permeability to gases, adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/726Permeability to liquids, absorption
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

Abstract

The invention discloses a negative poisson ratio mesh fabric with a knee protection structure, which comprises a mesh fabric body, wherein a contact layer is arranged on the inner side of the mesh fabric body, a sweat absorbing layer, a first elastic layer, a tensile inner layer, a second elastic layer, a breathable layer and a wear-resistant layer are sequentially arranged on the outer side of the contact layer from inside to outside, a first through hole is formed in the contact layer, a sweat absorbing hole is formed in the sweat absorbing layer, a tensile structure with a negative poisson ratio function is arranged among the first elastic layer, the tensile inner layer and the second elastic layer, second through holes are formed among the first elastic layer, the tensile inner layer and the second elastic layer, and air holes are formed in the breathable layer and the wear-resistant layer; has the advantages that: according to the invention, the tensile assembly is additionally arranged on the mesh cloth body, when the knees are stretched and touch the floor and other hard materials, the knees are protected due to the thickening caused by stretching, and meanwhile, the tensile assembly ensures that the mesh cloth body has good tear resistance, so that the service life of the mesh cloth is prolonged.

Description

Negative Poisson ratio screen cloth with protective knee structure
Technical Field
The invention relates to the technical field of mesh cloth, in particular to negative Poisson ratio mesh cloth with a knee protection structure.
Background
In modern sports, the knee is not only an extremely important part in sports, but also a fragile part which is easy to be injured, and the knee pad mesh cloth is an article for protecting the knee of people, has the functions of sports protection, cold protection, warm keeping and joint maintenance, is divided into a sports knee pad and a health knee pad, and is suitable for athletes, middle aged and elderly people and patients with knee diseases.
The poisson ratio is the ratio of the absolute value of transverse positive strain and axial positive strain when a material is unidirectionally pulled or pressed, and is also called a transverse deformation coefficient, and is an elastic constant reflecting transverse deformation of the material. The negative poisson's ratio effect is a phenomenon in which a material expands laterally in an elastic range when stretched, and contracts laterally in an elastic range when compressed. Compared with the traditional positive poisson ratio material, the negative poisson ratio material has unique properties different from the common material, has incomparable advantages compared with other materials in many aspects, and particularly greatly improves the physical and mechanical properties of the material, such as the shear modulus, the notch resistance and the fracture resistance of the material and the resilience toughness of the material.
The traditional mesh cloth has no negative poisson ratio performance, is easy to tear due to pulling in the use process, so that the service life of the mesh cloth is shortened, and the skin is stuffy and hot after a large amount of sweat is produced in the movement, so that the use comfort level is poor.
Disclosure of Invention
The invention aims to provide a negative poisson ratio mesh cloth with a knee protection structure, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a negative poisson ratio screen cloth with protection knee structure, includes the screen cloth body, the inboard of screen cloth body is provided with the contact layer, the outside of contact layer has set gradually sweat-absorbing layer, first elastic layer, tensile inlayer, second elastic layer, ventilative layer and wearing layer by inside to outside, first through-hole has been seted up on the contact layer, sweat-absorbing hole has been seted up on the sweat-absorbing layer, set up the anti-pulling structure that has negative poisson ratio function between first elastic layer, tensile inlayer and the second elastic layer, all be provided with the second through-hole between first elastic layer, tensile inlayer and the second elastic layer, be provided with the bleeder vent on ventilative layer and the wearing layer.
Preferably, the first through holes are arranged in a plurality, and the first through holes are distributed along the contact layer in a shape like a Chinese character tian.
Preferably, the sweat absorbing holes are communicated with the first through holes, the cross sections of the sweat absorbing holes are of isosceles trapezoid hole-shaped structures, and the sweat absorbing layer is of a dehydrated gel carbon fiber composite film layer structure.
Preferably, the tensile structure comprises braided ropes, every two braided ropes are both in a wave layer structure, flexible rods are sleeved on the outer sides of the braided ropes, and a restraining ring is sleeved at the joint between every two flexible rods.
Preferably, every two relative one side of flexible pole all is provided with first elastic ball, per two relative one side of junction between the flexible pole all is provided with second elastic ball, the holding tank has all been seted up to first elastic ball and second elastic ball.
Preferably, the support rod is inserted between the first elastic ball and the second elastic ball, the two ends of the support rod are provided with limit blocks, the limit blocks are of semi-arc spherical rubber layer structures, and the limit blocks are located inside the accommodating groove.
Preferably, first elastic layer, tensile inlayer and the equal viscose of second elastic layer are connected, the both ends of second through-hole communicate between with bleeder vent and the sweat-absorbing hole respectively, and the cross-section of bleeder vent is big-end-up's loudspeaker form through-hole structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the tensile assembly is additionally arranged on the mesh cloth body, when the knees are stretched and touch hard materials such as a floor and the like, the knees are protected due to the fact that the knees are thickened due to stretching, and meanwhile, the tensile assembly ensures that the mesh cloth body has good tear resistance, so that the service life of the mesh cloth is prolonged, the mesh cloth has good sweat absorption and ventilation effects after a large amount of sweat is generated in movement, and the use comfort of the mesh cloth is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a tensile structure of the present invention;
fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention.
In the figure: a mesh body 1; a contact layer 2; a first through hole 21; a sweat-absorbing layer 3; sweat absorbing holes 31; a first elastic layer 4; a tensile inner layer 5; a second through hole 51; a second elastic layer 6; a breathable layer 7; a breather hole 71; a wear resistant layer 8; a braided rope 91; a flexible rod 92; a confinement ring 93; a first resilient ball 94; a second elastic ball 95; a receiving groove 96; a support rod 97; a stop block 98.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a negative Poisson ratio mesh cloth with a knee protection structure comprises a mesh cloth body 1, wherein a contact layer 2 is arranged on the inner side of the mesh cloth body 1, a sweat absorbing layer 3, a first elastic layer 4, a tensile inner layer 5, a second elastic layer 6, a breathable layer 7 and a wear-resistant layer 8 are sequentially arranged on the outer side of the contact layer 2 from inside to outside, the wear-resistant layer 8 ensures the wear resistance of the mesh cloth body 1 when contacting with a convex part and prevents the wear-resistant layer 8 from being damaged to influence the effects of other layers, a plurality of first through holes 21 are formed in the contact layer 2, a plurality of first through holes 21 are formed in the first through holes 21, the sweat absorbing layer 3 is provided with sweat absorbing holes 31, the sweat absorbing holes 31 are communicated with the first through holes 21, the cross section of the mesh cloth is of an isosceles trapezoid hole structure, the sweat absorbing layer 3 is of a dehydrated gel carbon fiber composite film structure, and after a large amount of sweat is produced in motion, the sweat absorbing layer 2 permeates into the sweat absorbing holes 21 and the sweat absorbing holes 31, sweat is handled through the adsorption efficiency of sweat-absorbing layer 3 material, prevents to make skin produce sticky feeling because of sweat adhesion on the surface of contact layer 2, is favorable to the comfort level of skin.
The first elastic layer 4, the tensile inner layer 5 and the second elastic layer 6 are connected through glue, a tensile structure with a negative Poisson's ratio function is arranged among the first elastic layer 4, the tensile inner layer 5 and the second elastic layer 6, the tensile structure comprises braided ropes 91, each two braided ropes 91 are of a wave layer structure, flexible rods 92 are sleeved on the outer sides of the braided ropes 91, the tensile strength of the flexible rods 92 is guaranteed through the braided ropes 91, a restraining ring 93 is sleeved at the joint between each two flexible rods 92, the restraining ring 93 is of a certain elastic structure, the restraining ring 93 limits the joint between each two flexible rods 92 to guarantee the tear resistance between each two flexible rods 92, a first elastic ball 94 is bonded on one side opposite to each two flexible rods 92, a second elastic ball 95 is bonded on one side opposite to the joint between each two flexible rods 92, and accommodating grooves 96 are formed in the first elastic ball 94 and the second elastic ball 95, the support rods 97 are inserted between the first elastic balls 94 and the second elastic balls 95, the two ends of the support rods 97 are bonded with the limit blocks 98, the limit blocks 98 are semi-spherical rubber layer structures, the limit blocks 98 are positioned inside the accommodating grooves 96, the limit blocks 98 limit the support rods 97 to prevent the support rods 97 from moving randomly, when knee-protecting mesh cloth is worn on knees and the knee-protecting mesh cloth is stressed before being stretched, the first elastic balls 94 and the second elastic balls 95 are compressed uniformly, so that the inclination angles of the support rods 97 on the two sides between the first elastic balls 94 and the second elastic balls 95 are increased, when the knee-protecting mesh cloth is stretched and touched with hard materials such as floors, the first elastic balls 94 and the second elastic balls 95 recover elastic deformation due to stretching, the inclination angles of the support rods 97 on the two sides between the first elastic balls 94 and the second elastic balls 95 are gradually reduced, and the first elastic layer 4 and the second elastic layer 6 are further supported, thereby make whole screen cloth body 1 thickening play the effect of protection knee.
First elastic layer 4, second through-hole 51 has all been seted up between tensile inlayer 5 and the second elastic layer 6, bleeder vent 71 has been seted up on ventilative layer 7 and the wearing layer 8, the cross-section of bleeder vent 71 is big-end-up's loudspeaker form through-hole structure, the both ends of second through-hole 51 communicate between bleeder vent 71 and the sweat-absorbing hole 31 respectively, after a large amount of sweat is gone out in the motion, the sweat on the knee is through first through-hole 21, sweat-absorbing hole 31, second through-hole 51 and bleeder vent 71 and the contact of outside air, the screen cloth has good ventilation effect, and the shape of bleeder vent 71 guarantees that the sweat on the knee can be abundant ventilative, and the dust of outside air is difficult to get into, the result of use of screen cloth has been guaranteed.
The working principle is as follows: in practical use, when the knee-protecting mesh cloth is worn on the knee, the knee is stressed when being bent before being stretched, at the moment, the first elastic ball 94 and the second elastic ball 95 are compressed in a pressure-equalizing manner, so that the inclination angles of the support rods 97 on the two sides between the first elastic ball 94 and the second elastic ball 95 are increased, when the knee-protecting mesh cloth is stretched and touched with hard materials such as floors and the like, the first elastic ball 94 and the second elastic ball 95 recover elastic deformation due to stretching, at the moment, the inclination angles of the support rods 97 on the two sides between the first elastic ball 94 and the second elastic ball 95 are gradually reduced, so that the first elastic layer 4 and the second elastic layer 6 are supported, the whole mesh cloth body 1 is thickened to achieve the effect of protecting the knee, the tensile strength of the flexible rods 92 is ensured by the braided rope 91, the connection part between every two flexible rods 92 is limited by the restraining ring 93, the tear resistance between every two flexible rods 92 is ensured, and after a large amount of sweat is produced during movement, sweat is in the first through-hole 21 and the infiltration sweat-absorbing hole 31 infiltration sweat-absorbing layer 3 on the contact layer 2, handles sweat through the adsorption efficiency of sweat-absorbing layer 3 material, and the sweat on the knee is through first through-hole 21, sweat-absorbing hole 31, second through-hole 51 and bleeder vent 71 and outside air contact, and the shape of bleeder vent 71 guarantees that the sweat on the knee can be abundant ventilate, and the dust of outside air is difficult to get into, has guaranteed the result of use of screen cloth.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a negative poisson's ratio screen cloth with protection knee structure, includes screen cloth body (1), its characterized in that: the inner side of the mesh cloth body (1) is provided with a contact layer (2), the outer side of the contact layer (2) is sequentially provided with a sweat absorbing layer (3), a first elastic layer (4), a tensile inner layer (5), a second elastic layer (6), a breathable layer (7) and a wear-resistant layer (8) from inside to outside, a first through hole (21) is formed in the contact layer (2), sweat absorbing holes (31) are formed in the sweat absorbing layer (3), tensile structures with a negative poisson's ratio function are arranged among the first elastic layer (4), the tensile inner layer (5) and the second elastic layer (6), second through holes (51) are formed among the first elastic layer (4), the tensile inner layer (5) and the second elastic layer (6), and ventilation holes (71) are formed in the breathable layer (7) and the wear-resistant layer (8).
2. The negative poisson's ratio mesh fabric with protected knee structure as claimed in claim 1, wherein: the first through holes (21) are arranged in a plurality, and the first through holes (21) are distributed along the contact layer (2) in a 'tian' -shaped arrangement.
3. The negative poisson's ratio mesh fabric with protected knee structure as claimed in claim 1, wherein: the sweat absorbing holes (31) are communicated with the first through holes (21), the cross sections of the sweat absorbing holes are of isosceles trapezoid hole-shaped structures, and the sweat absorbing layer (3) is of a dehydrated gel carbon fiber composite film layer structure.
4. The negative poisson's ratio mesh fabric with protected knee structure as claimed in claim 1, wherein: tensile structure includes weaving rope (91), per two weave rope (91) all are wave layer structure, weave the outside of rope (91) and cup jointed flexible pole (92), per two the junction between flexible pole (92) has cup jointed restraint ring (93).
5. The negative Poisson ratio mesh fabric with a protective knee structure as claimed in claim 4, wherein: every two relative one side of flexible pole (92) all is provided with first elastic ball (94), every two relative one side of junction between flexible pole (92) all is provided with second elastic ball (95), holding tank (96) have all been seted up in first elastic ball (94) and second elastic ball (95).
6. The negative Poisson ratio mesh fabric with a protective knee structure as claimed in claim 5, wherein: support rods (97) are inserted between the first elastic balls (94) and the second elastic balls (95), limiting blocks (98) are arranged at two ends of each support rod (97), each limiting block (98) is of a semi-arc spherical rubber layer structure, and each limiting block (98) is located inside the corresponding accommodating groove (96).
7. The negative poisson's ratio mesh fabric with protected knee structure as claimed in claim 1, wherein: first elastic layer (4), tensile inlayer (5) and the equal viscose of second elastic layer (6) are connected, the both ends of second through-hole (51) communicate between with bleeder vent (71) and sweat-absorbing hole (31) respectively, the cross-section of bleeder vent (71) is big-end-up's loudspeaker form through-hole structure outward.
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Publication number Priority date Publication date Assignee Title
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