CN207481832U - A kind of double gas formula hydraulic automobile bumpers - Google Patents
A kind of double gas formula hydraulic automobile bumpers Download PDFInfo
- Publication number
- CN207481832U CN207481832U CN201721564100.2U CN201721564100U CN207481832U CN 207481832 U CN207481832 U CN 207481832U CN 201721564100 U CN201721564100 U CN 201721564100U CN 207481832 U CN207481832 U CN 207481832U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- baffle
- cylinder barrel
- accumulator
- gas formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of double gas formula hydraulic automobile bumpers, including bumper outside plate and buffer unit, buffer unit includes cylinder barrel, the first accumulator, the second accumulator, first baffle, second baffle, the first sleeve and second sleeve, the bumper is using double gas formula structures, huge impact force can be generated during effective automobile impacting, reduce vehicle body and the damage of personnel.
Description
Technical field
The utility model belongs to automotive safety protection facility field, is related to a kind of double gas formula hydraulic automobile bumpers.
Background technology
Bumper be absorb and slow down foreign impacts power, protection vehicle body and personnel safety device, generally by outside plate,
Padded coaming and crossbeam three parts are formed.Traditional bumper is the material (metal or plastics) by bumper in itself
Rigidity carrys out the huge impact force generated during buffering collision of closed, but the rigidity of material is limited, the vehicle body of decrease and personnel injury
Degree very little.Such bumper is seen everywhere on the automobile on existing road, and during car crass, bumper is in powerful shock
It is easy to fracture under power or bending, causes vehicle body and the damage of personnel.There is hydraulic automobile bumper at present, passed through liquid
The cushioning effect of cylinder pressure reduces vehicle body and the damage of personnel, can also realize and automatically control, but existing Hydraulic bumper needs
There is hydraulic power unit, cost is larger, complicated, is not suitable for being mounted on automobile.In addition, simple hydraulic cylinder cushioning effect pair
Longer in the response time for the impact force that moment generates, effect is bad.
Hydro pneumatic suspension device is usually used in great tonnage engineering truck, and in order to slow down impact, reduction is jolted, and improves driver's
Riding comfort, technology are relatively ripe.The advantages of hydro pneumatic suspension device bumper and absorbing shock：(1) it is usually used in great tonnage
Illustrate the huge impact force for being suitable for generating during automobile impacting；(2) the riding comfort explanation for improving driver produces moment
The raw huge impact force response time is short, has good buffering effect；(3) hydro pneumatic suspension device be mounted on vehicle frame and vehicle bridge it
Between illustrate compact-sized, be suitable as the buffer unit of bumper；(4) automobile is used for after hydro pneumatic suspension device is improved
Bumper does not need to hydraulic power unit, and cost is relatively low.More than advantage is based on, hydro pneumatic suspension device also has the good rigidity spy of hydraulic oil
The non-linear increased stiffness characteristics of coasting gas in point and accumulator, have well for bumper as buffer unit
Market prospects.Applied for a kind of single gas formula hydraulic automobile bumper before, but because when piston rod is shunk check valve open
It opens, the damping force that piston and piston rod establishment opposite cylinder barrel are subject to when moving is smaller, is not suitable for loading capacity heavy goods vehicles bigger than normal
.Heavy vehicle is because dead weight and loading capacity are larger, the impact force bigger generated when hitting, single gas formula hydraulic automobile bumper
Cushion rigidity it is insufficient.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the above-mentioned prior art, provide a kind of double gas formula hydraulic automobiles to protect
Dangerous thick stick, the bumper can generate huge impact force using double gas formula structures during effective automobile impacting, cushion rigidity compared with
It is good, reduce vehicle body and the damage of personnel.
In order to achieve the above objectives, double gas formula hydraulic automobile bumpers described in the utility model include bumper outside plate and delay
Flushing device, buffer unit include cylinder barrel, the first accumulator, the second accumulator, first baffle, second baffle, the first sleeve and the
Two sleeves；
First through hole is offered on the end face of cylinder barrel end, first baffle is located in cylinder barrel, and the peripheral surface of first baffle
It is in contact with the inner wall of cylinder barrel, the first sleeve and second sleeve are inserted in across the first through hole in cylinder barrel, and the first sleeve is empty
It is placed in second sleeve, the equal fixing seal in one end of the first sleeve and one end of second sleeve is on first baffle, the first sleeve
The other end and the other end fixing seal of second sleeve that second is offered in the middle part of the bottom of second baffle, first baffle is logical
Hole, and the inside of the first sleeve is connected by the second through-hole with the inside of cylinder barrel, is offered on the side wall of second sleeve several
Damping hole, each damping hole are respectively positioned in cylinder barrel, and the cavity between the first accumulator and the first sleeve and second sleeve is connected, the
Two accumulators are connected with the inside of the first sleeve；
The top of second baffle is in contact with bumper outside plate.
Several check valves are provided on the side wall of second sleeve.
Each damping hole circumferentially equidistantly distributed.
Each check valve circumferentially equidistantly distributed.
The quantity of buffer unit is 2, and 2 buffer units are located at the both sides of bumper outside plate respectively.
The utility model has the advantages that：
Double gas formula hydraulic automobile bumpers described in the utility model are in concrete operations, when the generation of car collision moment is huge
During big impact force F, the first sleeve and second sleeve are shunk relative to cylinder barrel, so as to which hydraulic oil be made to enter the second accumulator
In, and the hydraulic oil in the first accumulator is exported, to improve increase damping, produced during automobile impacting so as to effectively alleviate
Raw huge impact force reduces the damage of vehicle body and personnel, and shock stiffness is larger, can adapt on heavy vehicle, and tie
Structure is simple, easy to operate, can effectively improve the safety of user.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of buffer unit 2 in the utility model.
Wherein, 1 be bumper outside plate, 2 be buffer unit, 3 be the first sleeve, 4 be second sleeve, 5 be the second accumulator,
6 it is damping hole, 7 be check valve, 8 be cylinder barrel, 9 be first baffle, 10 be second baffle, 11 is the first accumulator.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1 and Fig. 2, double gas formula hydraulic automobile bumpers described in the utility model include bumper outside plate 1 and delay
Flushing device 2, buffer unit 2 include cylinder barrel 8, the first accumulator 11, the second accumulator 5, first baffle 9, second baffle 10, first
Sleeve 3 and second sleeve 4；First through hole is offered on the end face of 8 end of cylinder barrel, first baffle 9 is located in cylinder barrel 8, and first
The peripheral surface of baffle 9 is in contact with the inner wall of cylinder barrel 8, and the first sleeve 3 and second sleeve 4 are inserted in cylinder across the first through hole
In cylinder 8, the first sleeve 3 is placed in second sleeve 4, the equal fixing seal in one end of one end and second sleeve 4 of the first sleeve 3 in
On first baffle 9, the other end of the first sleeve 3 and the other end fixing seal of second sleeve 4 are in the bottom of second baffle 10, and
The middle part of one baffle 9 offers the second through-hole, and the inside of the first sleeve 3 is connected by the second through-hole with the inside of cylinder barrel 8,
Several damping holes 6 are offered on the side wall of second sleeve 4, each damping hole 6 is respectively positioned in cylinder barrel 8, the first accumulator 11 and first
Cavity between sleeve 3 and second sleeve 4 is connected, and the second accumulator 5 is connected with the inside of the first sleeve 3；Second baffle
10 top is in contact with bumper outside plate 1.The quantity of buffer unit 2 is 2, and 2 buffer units 2 are located at bumper respectively
The both sides of outside plate 1.
Several check valves 7 are provided on the side wall of second sleeve 4；Each damping hole 6 circumferentially equidistantly distributed；Each check valve
7 circumferentially equidistantly distributeds.
If the inner wall of the lower surface of first baffle 9, the inner wall of the first sleeve 3 and cylinder barrel 8 surrounds A chambers, the first sleeve 3
Outer wall, the inner wall of second sleeve 4, the upper surface of first baffle 9 and second baffle 10 lower surface surround C chambers, second sleeve 4
Outer wall, the upper surface of first baffle 9 and the inner wall of cylinder barrel 8 surround B chambers, wherein, B chambers and C chambers by check valve 7 and
Damping hole 6 is connected, and the first accumulator 11 is connected with C chambers, and the second accumulator 5 is connected with A chambers.
The specific work process of the utility model is：
Referring to Fig. 1, when automobile impacting generates huge impact force F, generated when weakening automobile impacting by buffer unit 2 huge
Big impact force F reduces vehicle body and the damage of personnel.
Specifically, the huge impact force F of moment generation when car collision, the first sleeve 3 and second sleeve 4 are relative to cylinder
Cylinder 8 is shunk, and the hydraulic oil in A chambers can be compressed and enter the second accumulator 5, and the hydraulic oil 3 in C chambers holds because of B chambers
Product increases and is compressed by inert gas in the first accumulator 11, and then is entered in B chambers by damping hole 6 and check valve 7.
The good rigidity of nonlinear increase stiffness characteristics and hydraulic oil based on inert gas in the second accumulator 5 is special
Point, so as to slow down automobile impacting when, generate huge impact force F, reduce vehicle body and the damage of personnel.In buffering course, C chambers
The pressure of hydraulic oil is constant due to the pressure maintaining effect of the second accumulator 5 in room, and the increase of B chambers internal volume, oil pressure reduces, therefore C
The indoor hydraulic oil of chamber is entered through check valve 7 in B chambers, relative to existing single gas formula Hydraulic bumper buffer unit, is had
Effect increases damping, is more suitable for the heavy vehicle conducted oneself with dignity and loading capacity is bigger than normal.
When the buffer unit 2 resets, the inert gas pressurization into the second accumulator 5 makes the hydraulic pressure in the second accumulator 5
Oil is entered in A chambers, and the first sleeve 3 and second sleeve 4 are protruding, and the indoor hydraulic oil of B chambers is entered by damping hole 6
In C chambers, C cavity volumes reduce, wherein, the indoor hydraulic oil of C chambers is entered in the first accumulator 11, make the first sleeve 3 and
Second sleeve 4 returns to initial position.
Claims (5)
1. a kind of double gas formula hydraulic automobile bumpers, which is characterized in that including bumper outside plate (1) and buffer unit (2), buffering
Device (2) includes cylinder barrel (8), the first accumulator (11), the second accumulator (5), first baffle (9), second baffle (10), first
Sleeve (3) and second sleeve (4)；
First through hole is offered on the end face of cylinder barrel (8) end, first baffle (9) is in cylinder barrel (8), and first baffle (9)
Peripheral surface be in contact with the inner wall of cylinder barrel (8), the first sleeve (3) and second sleeve (4) are inserted in across the first through hole
In cylinder barrel (8), the first sleeve (3) is placed in second sleeve (4), one end of the first sleeve (3) and one end of second sleeve (4)
Equal fixing seal on first baffle (9), the other end of the first sleeve (3) and the other end fixing seal of second sleeve (4) in
The bottom of second baffle (10) offers the second through-hole, and the inside of the first sleeve (3) passes through in the middle part of first baffle (9)
Two through-holes are connected with the inside of cylinder barrel (8), and several damping holes (6), each damping hole are offered on the side wall of second sleeve (4)
(6) it being respectively positioned in cylinder barrel (8), the cavity between the first accumulator (11) and the first sleeve (3) and second sleeve (4) is connected,
Second accumulator (5) is connected with the inside of the first sleeve (3)；
The top of second baffle (10) is in contact with bumper outside plate (1).
2. double gas formula hydraulic automobile bumpers according to claim 1, which is characterized in that on the side wall of second sleeve (4)
It is provided with several check valves (7).
3. double gas formula hydraulic automobile bumpers according to claim 1, which is characterized in that each damping hole (6) is circumferentially etc.
Spacing is distributed.
4. double gas formula hydraulic automobile bumpers according to claim 2, which is characterized in that each check valve (7) is circumferentially etc.
Spacing is distributed.
5. double gas formula hydraulic automobile bumpers according to claim 1, which is characterized in that the quantity of buffer unit (2) is 2
It is a, and 2 buffer units (2) are located at the both sides of bumper outside plate (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564100.2U CN207481832U (en) | 2017-11-21 | 2017-11-21 | A kind of double gas formula hydraulic automobile bumpers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564100.2U CN207481832U (en) | 2017-11-21 | 2017-11-21 | A kind of double gas formula hydraulic automobile bumpers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207481832U true CN207481832U (en) | 2018-06-12 |
Family
ID=62474798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721564100.2U Expired - Fee Related CN207481832U (en) | 2017-11-21 | 2017-11-21 | A kind of double gas formula hydraulic automobile bumpers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207481832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804258A (en) * | 2017-11-21 | 2018-03-16 | 长安大学 | A kind of double gas formula hydraulic automobile bumpers |
-
2017
- 2017-11-21 CN CN201721564100.2U patent/CN207481832U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804258A (en) * | 2017-11-21 | 2018-03-16 | 长安大学 | A kind of double gas formula hydraulic automobile bumpers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20181121 |