CN103879368B - Bumper for preventing car when collision - Google Patents
Bumper for preventing car when collision Download PDFInfo
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- CN103879368B CN103879368B CN201410110166.9A CN201410110166A CN103879368B CN 103879368 B CN103879368 B CN 103879368B CN 201410110166 A CN201410110166 A CN 201410110166A CN 103879368 B CN103879368 B CN 103879368B
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- sleeve
- buffer cell
- catch
- crushing rod
- collision
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Abstract
The invention discloses a kind of bumper for preventing car when collision, relate to automobile technical field.It includes being fixed on automobile chassis leading section and/or the fixing hydraulic buffering mechanism of rearward end, and hydraulic buffering mechanism includes the broken buffer cell of at least three head and the tail series connection；Described broken buffer cell includes that sleeve, sleeve slipper seal have the acuminous crushing rod of band；On sleeve lining, the tip outer side seal at crushing rod is fixed with catch；In sleeve, it is the liquid chamber being filled with liquid between catch and crushing rod；Sleeve outside liquid chamber is provided with drain hole.The invention has the beneficial effects as follows installation bumper for preventing car when collision on automobile, utilize multistage end to end broken buffer cell, by crashing catch and liquid at high speed ejection step by step, kinetic energy during car crass is converted, both the car crass time can have been extended, reduce impact force, can absorb again the produced kinetic energy of collision, thus realize human body and car body exempts from the purpose of infringement simultaneously.
Description
Technical field
The present invention relates to automobile technical field.
Background technology
At present, the vehicles that automobile is closely bound up become people's life already because it is convenient, fast in.But the car crash tragedy that the most adjoint vehicle accident is caused also happens occasionally.And understand from the analysis of various accidents, the collision loss of automobile front and back ends is the most serious.In order to protect the life security of passenger as far as possible, traditional automobile front and back ends design follows the principle of " would rather car ruin and people does not dies ".Meanwhile, it is also devised with bumper at custom, the rear portion of automobile, for being rigidly connected between C bumper and car body.When automobile suffers a little impact force, this bumper also can play the effect of protection car body to a certain extent.But the development along with car industry; the travel speed of automobile is more and more faster; collision scenario moment when speed reaches 60 km per hour; huge inertia force will make automobile head or afterbody be squeezed and gross distortion occurs, and bumper now cannot realize protecting the purpose of car body at all.Therefore, car body is preserved while how protecting occupant safety, it has also become the key subjects that automobile designers and manufacturer are faced.
To this end, people design different collision proof means for automobiles, " hydraulic damper for automobile " if China's Authorization Notice No. is CN2318085Y just discloses such a device.It mainly includes the parts such as hydraulic column, steel bushing, oil pump, hydrojet room, fluid reservoir, spring embolus, it is the liquid oil utilizing hydraulic column extruding hydrojet indoor, embolus is made to move down, liquid is made to inject fluid reservoir by jet flow gap high velocity spray, the kinetic energy making car crass is converted into the kinetic energy of liquid at high speed ejection, in order to play the effect of slow an ancient drinking vessel object impulsive contact force.Equally, China's grant number is that " buffer device for collision of automobile " of CN2456972Y is also in the way of hydraulic cushion, impact kinetic energy is converted to the kinetic energy of liquid ejection, although such scheme is feasible in principle, but knowable to analyzing: huge kinetic energy produced by car crass, wanting in 20 milliseconds to 30 milliseconds of extremely short collision time sections, be completely converted into from gap the liquid kinetic energy of ejection, this is impossible.It is to say, piston compression fluid so that it is spray from aperture, although have an energy expenditure, but kinetic energy produced by this energy expenditure and car crass moment is remote not in an order of magnitude, i.e. kinetic energy produced by car crass cannot be converted by flow resistance.Therefore, it can not solve problem.Meanwhile, within the shortest time period, liquid is as can not be drained in time from jet, and the pressure that hydrojet will be made indoor drastically raises, and the phenomenon that steel bushing bursts very likely occurs.Furthermore, due to the existence of jet, above-mentioned buffer can only work at low pressures, and its volume will be the hugest, and be very unrealistic in wanting to be installed in the narrow space of existing car body head or afterbody, thus such scheme implements the effect being unable to reach anticipation.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of bumper for preventing car when collision, it utilizes multistage end to end broken buffer cell, by crashing catch and liquid at high speed ejection step by step, kinetic energy during car crass is converted, both the car crass time can have been extended, reduce impact force, can absorb again the produced kinetic energy of collision, thus realize human body and car body reduces the purpose of infringement simultaneously.
The technical solution used in the present invention is: a kind of bumper for preventing car when collision, and including being fixed on automobile chassis leading section and/or the fixing hydraulic buffering mechanism of rearward end, hydraulic buffering mechanism includes the broken buffer cell of at least three head and the tail series connection；Described broken buffer cell includes that sleeve, sleeve slipper seal have the acuminous crushing rod of band；On sleeve lining, the tip outer side seal at crushing rod is fixed with catch；In sleeve, it is the liquid chamber being filled with liquid between catch and crushing rod；Sleeve outside liquid chamber is provided with drain hole；Described at least three crushes in buffer cell, is positioned at the axially-extending of front end edge sleeve of the preposition crushing rod of the preposition broken buffer cell of front end to cartridge exterior；Described at least three crushes the buffer cell Flange joint by sleeve ends；Described sleeve outer wall is covered with rust inhibitor paint coatings；Described catch is that fragile material is made.
Different from traditional bumper hydraulic damping device, the kinetic energy that the catch of each broken buffer cell of the technical program crushes and drain hole earial drainage quantitative adsorption car crass step by step produces, after catch is broken, liquid can be discharged in the short period of time from drain hole, both it had been possible to prevent in liquid chamber that pressure is excessive causes sleeve breakage, can ensure that again that the kinetic energy of automobile converted at short notice.
The preposition broken buffer cell being positioned at front end is positioned at headstock portion and the tailstock portion of automobile, shock is directly born during car crass, first catch is smashed by preposition crushing rod by clashing into, and then strikes the crushing rod of next broken buffer cell, crushes shock successively and go down；The length of the crushing rod being positioned at the preposition broken buffer cell with front end directly determines the distance that hydraulic buffering mechanism can buffer.
The length of body of a motor car, structure, tonnage are different, and the quantity of required broken buffer cell also differs, and can reasonably be determined the length of hydraulic buffering mechanism by Flange joint, improves the adaptability of all size vehicle body of the present invention.
Hydraulic buffering mechanism is fixed with automobile chassis in normal state, rust inhibitor paint coatings be possible to prevent sleeve outer wall to be adhered to by muddy water after corrosion, improve the service life of the present invention.
Fragile material can ensure that catch is broken for the block fragmentation that volume is smaller, is not stopped by bigger catch fragmentation thus change direction of propulsion or tip distortion is stuck in subordinate and crushes in the sleeve wall of buffer cell during being so possible to prevent crushing rod to advance in sleeve.
Optimizing the technical program further, the fragile material of bumper for preventing car when collision is cast iron or ceramic or lucite.
The invention has the beneficial effects as follows: bumper for preventing car when collision is installed on automobile, utilize multistage end to end broken buffer cell, by crashing catch and liquid at high speed ejection step by step, kinetic energy during car crass is converted, both the car crass time can have been extended, reduce impact force, can absorb again the produced kinetic energy of collision, thus realize human body and car body exempts from the purpose of infringement simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of broken buffer cell in Fig. 1.
In figure, 1 crushes buffer cell, 2 sleeves, 3 tips, 4 crushing rods, 5 catch, 6 liquid chambers, 7 drain holes, 8 preposition broken buffer cells, 9 preposition crushing rods, 10 flanges.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Bumper for preventing car when collision shown in Fig. 1, Fig. 2, the hydraulic buffering mechanism fixing including being fixed on automobile chassis leading section and/or rearward end, it is characterised in that described hydraulic buffering mechanism includes the broken buffer cell 1 of at least three head and the tail series connection；Described broken buffer cell 1 includes that sleeve 2, sleeve 2 slipper seal have the crushing rod 4 with tip 3；On sleeve 1 inwall, tip 3 outer side seal at crushing rod 4 is fixed with catch 5；In sleeve 2, it is the liquid chamber 6 being filled with liquid between catch 5 and crushing rod 4；Sleeve 2 outside liquid chamber 6 is provided with drain hole 7；At least three crushes in buffer cell 1, and the axially-extending of the front end edge sleeve 2 being positioned at the preposition crushing rod 9 of the preposition broken buffer cell 8 of front end is outside to sleeve 2；At least three is crushed buffer cell 1 and is connected by the flange 10 of sleeve ends；Sleeve 2 outer wall is covered with rust inhibitor paint coatings；Catch is that fragile material is made.
Hydraulic buffering mechanism may be mounted at the front and rear of automobile chassis, can connect between the most preposition crushing rod 9 to increase lifting surface area during collision in the way of using two or three hydraulic buffering mechanisms side by side.
Different from traditional bumper hydraulic damping device, the kinetic energy that catch 5 crushes and drain hole 7 earial drainage quantitative adsorption car crass step by step produces of each broken buffer cell 1, after catch 5 is broken, liquid can be discharged in the short period of time from drain hole 7, both it had been possible to prevent in liquid chamber 6 that pressure is excessive causes sleeve 2 to rupture, can ensure that again that the kinetic energy of automobile converted at short notice.The present invention can use has low melting point, low-density liquid.
Preposition broken buffer cell 8 is positioned at headstock portion and the tailstock portion of automobile, directly bears shock during car crass, and first catch 5 is smashed by preposition crushing rod 9 by clashing into, and then strikes the crushing rod 4 of next broken buffer cell 1, crushes shock successively and go down；Preposition crushing rod 9 sequentially passes through the sleeve 2 crushing buffer cell 1 step by step from front to back when collision, and the length of preposition crushing rod 9 directly determines the distance that hydraulic buffering mechanism can buffer.
The length of body of a motor car, structure, tonnage are different, and the quantity of required broken buffer cell 1 also differs, and are connected the length that can reasonably determine hydraulic buffering mechanism by flange 10, improve the adaptability of all size vehicle body of the present invention.
Hydraulic buffering mechanism is fixed with automobile chassis in normal state, rust inhibitor paint coatings be possible to prevent sleeve 2 outer wall to be adhered to by muddy water after corrosion, improve the service life of the present invention.Antirust paint can use the type such as iron oxide red or Plumbum preparatium.
Fragile material uses pottery, lucite, cast iron etc.) can ensure that catch 5 is broken for the block fragmentation that volume is smaller, during being so possible to prevent crushing rod 4 to advance sleeve 2 in not by bigger catch 5 fragmentation stop thus change direction of propulsion or tip 3 distorts and is stuck in subordinate and crushes in the sleeve wall of buffer cell 1.
Claims (1)
1. a bumper for preventing car when collision, the hydraulic buffering mechanism fixing including being fixed on automobile chassis leading section and/or rearward end, it is characterised in that described hydraulic buffering mechanism includes the broken buffer cell (1) of at least three head and the tail series connection；Described broken buffer cell (1) includes that sleeve (2), sleeve (2) slipper seal have the crushing rod (4) with tip (3)；On sleeve (2) inwall, tip (3) outer side seal in crushing rod (4) is fixed with catch (5)；In sleeve (2), it is the liquid chamber (6) being filled with liquid between catch (5) and crushing rod (4)；The sleeve (2) in liquid chamber (6) outside is provided with drain hole (7)；Described at least three crushes in buffer cell (1), and the axially-extending of the front end edge sleeve (2) being positioned at the preposition crushing rod (9) of the preposition broken buffer cell (8) of front end is outside to sleeve (2)；Described at least three is crushed buffer cell (1) and is connected by the flange (10) of sleeve (2) end；Described sleeve (2) outer wall is covered with rust inhibitor paint coatings；Described catch (5) is that cast iron, pottery or lucite fragile material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410110166.9A CN103879368B (en) | 2014-03-24 | 2014-03-24 | Bumper for preventing car when collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410110166.9A CN103879368B (en) | 2014-03-24 | 2014-03-24 | Bumper for preventing car when collision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103879368A CN103879368A (en) | 2014-06-25 |
| CN103879368B true CN103879368B (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410110166.9A Active CN103879368B (en) | 2014-03-24 | 2014-03-24 | Bumper for preventing car when collision |
Country Status (1)
| Country | Link |
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| CN (1) | CN103879368B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309555B (en) * | 2014-10-14 | 2017-02-08 | 吉林大学 | Simple three-section sleeve type liquid-filling, buffering and energy-absorbing element and design method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2255838A1 (en) * | 1971-12-02 | 1973-06-07 | Ford Werke Ag | SHOCK ABSORBING BUMPER FOR MOTOR VEHICLES |
| CN2040863U (en) * | 1988-06-14 | 1989-07-12 | 孙丕祥 | Scissors type safety device |
| CN103010132A (en) * | 2012-11-15 | 2013-04-03 | 陶海滨 | Buffer device for collision of automobile |
| CN203793266U (en) * | 2014-03-24 | 2014-08-27 | 赵义龙 | Collision buffer of automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651080Y (en) * | 2003-07-21 | 2004-10-27 | 卢仁瑞 | Explosive sheet style collisionproof security device for vehicle and vessel |
-
2014
- 2014-03-24 CN CN201410110166.9A patent/CN103879368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2255838A1 (en) * | 1971-12-02 | 1973-06-07 | Ford Werke Ag | SHOCK ABSORBING BUMPER FOR MOTOR VEHICLES |
| CN2040863U (en) * | 1988-06-14 | 1989-07-12 | 孙丕祥 | Scissors type safety device |
| CN103010132A (en) * | 2012-11-15 | 2013-04-03 | 陶海滨 | Buffer device for collision of automobile |
| CN203793266U (en) * | 2014-03-24 | 2014-08-27 | 赵义龙 | Collision buffer of automobile |
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| Publication number | Publication date |
|---|---|
| CN103879368A (en) | 2014-06-25 |
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Effective date of registration: 20181107 Address after: 201799 floor 5, C building, 333 National Convention and Exhibition Center, song Ze Avenue, Qingpu District, Shanghai. Patentee after: Weimar Automobile Technology Group Co.,Ltd. Address before: 510640 2401, unit 371-1, Zhong Gong education building, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20181107 Address after: 510640 2401, unit 371-1, Zhong Gong education building, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 054703 Xingtai, Weixian County, Hebei, 328 Yuan Wang Qu village, Li Yuan Tun Town. Patentee before: Zhao Yilong |