CN203793266U - Collision buffer of automobile - Google Patents
Collision buffer of automobile Download PDFInfo
- Publication number
- CN203793266U CN203793266U CN201420133642.4U CN201420133642U CN203793266U CN 203793266 U CN203793266 U CN 203793266U CN 201420133642 U CN201420133642 U CN 201420133642U CN 203793266 U CN203793266 U CN 203793266U
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- CN
- China
- Prior art keywords
- sleeve
- automobile
- collision
- crushing rod
- crushing
- 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 collision buffer of an automobile, and relates to the technical field of automobiles. The collision buffer comprises hydraulic buffering mechanisms. The hydraulic buffering mechanisms are fixed to the front end and/or the rear end of chassis of the automobile, each hydraulic buffering mechanism comprises at least three crushing buffering units which are serially connected with one another in an end-to-end manner; each crushing buffering unit comprises a sleeve and a crushing rod with a pointed end, and each sleeve is slidably sealed by the corresponding crushing rod; a block piece is hermetically fixed to the outer side of the pointed end of each crushing rod and is arranged on the inner wall of the corresponding sleeve; a liquid chamber which is filled with liquid is arranged between each block piece and the corresponding crushing rod and is positioned in the corresponding sleeve; drain holes are formed in the sleeves and are positioned on the outer sides of the liquid chambers. The collision buffer of the automobile has the advantages that the collision buffer is mounted on the automobile, the multiple levels of crushing buffering units are connected with one another in the end-to-end manner, the block pieces can be progressively crushed, the liquid can be sprayed out at a high speed, accordingly kinetic energy generated when the automobile is collided can be converted, the collision time of the automobile can be prolonged, collision force can be reduced, the kinetic energy generated when the automobile is collided can be absorbed, and the purpose of simultaneously preventing injury to human bodies and damage to an automobile body can be achieved.
Description
Technical field
The utility model relates to automobile technical field.
Background technology
At present, automobile becomes the closely bound up vehicle in people's life already because it is convenient, fast.But the car crash tragedy that the traffic accident of simultaneously following causes also happens occasionally.And known from the analysis of various accidents, the collision damage of automobile front and back ends is the most serious.In order to protect passenger's life security as far as possible, the principle of " would rather car ruin and people do not die " is being followed in the design of traditional automobile front and back ends.Meanwhile, at custom, the rear portion of automobile, be also designed with bumper/spoiler, between C bumper/spoiler and car body for being rigidly connected.When automobile suffers a little impact force, this bumper/spoiler also can play the effect of protection car body to a certain extent.But the development along with auto-domain; the moving velocity of automobile is also more and more faster; the automobile that reaches 60,000 ms/h when the speed of a motor vehicle bumps moment; huge force of inertia will make automobile head or afterbody be squeezed and gross distortion will occur, and bumper/spoiler now cannot be realized the object of protection car body at all.Therefore, when how to protect occupant safety, preserve car body, become the key subjects that automobile designers and manufacturer face.
For this reason, people design different collision proof means for automobiles and come, as Chinese Granted publication number for the < < hydraulic damper for automobile > > of CN2318085Y just disclosed so a kind of device.It mainly comprises the parts such as hydraulic column, steel bushing, oil pump, hydrojet chamber, fluid reservoir, spring embolus, it is to utilize the indoor liquid oils of hydraulic column extruding hydrojet, embolus is moved down, make liquid enter fluid reservoir by jet flow gap high speed jet, the kinetic transformation that makes auto against is the kinetic energy of liquid at high speed ejection, to play the effect of slow an ancient drinking vessel object impulsive contact force.Equally, the < < buffer device for collision of automobile > > that China's grant number is CN2456972Y is also the mode with hydraulic cushion, impact kinetic energy is converted to the kinetic energy of liquid ejection, although such scheme is feasible in principle, but from analyzing: the huge kinetic energy that auto against produces, want in 20 milliseconds to 30 milliseconds extremely short collision time sections, all be converted into the liquid kinetic energy spraying from gap, this is impossible.That is to say, piston compression fluid sprays it from aperture, although there is energy consumption, the kinetic energy that this energy consumption and auto against moment produce is not far on an order of magnitude, and the kinetic energy that auto against produces cannot be transformed by flow resistance.Therefore, it can not be dealt with problems.Meanwhile, within the short like this time period, liquid, as do not drained in time from oil nozzle, will make the indoor pressure of hydrojet sharply raise, and very likely occurs the phenomenon of steel bushing explosion.Moreover, due to the existence of oil nozzle, above-mentioned energy disperser can only be worked under low pressure, and its volume will be very huge, and want to be arranged in the narrow space of existing car body head or afterbody, be very unpractical, thereby such scheme implement the effect that cannot reach anticipation.
Utility model content
The technical problems to be solved in the utility model is: a kind of bumper for preventing car when collision is provided, it utilizes multistage end to end broken buffer cell, kinetic transformation while spraying auto against by crashing step by step catch and liquid at high speed, both can extend the auto against time, reduce impact, can absorb the kinetic energy that collision produces again, thereby realize the object that human body and car body reduce infringement simultaneously.
The technical solution adopted in the utility model is: a kind of bumper for preventing car when collision, and comprise and be fixed on car chassis leading section and/or the fixing hydraulic buffering mechanism of rearward end, hydraulic buffering mechanism comprises the broken buffer cell of at least three head and the tail series connection; Described broken buffer cell comprises that sleeve, sleeve slipper seal be with acuminous crushing rod; On sleeve lining, outside the tip of crushing rod, side seal is fixed with catch; In sleeve, it between catch and crushing rod, is the liquid chamber that is filled with liquid; The sleeve in liquid chamber outside is provided with drain hole.
Different from traditional Federal bumper hydraulic damping device, the catch fragmentation of each broken buffer cell of the technical program and drain hole earial drainage quantitatively absorb the kinetic energy that auto against produces step by step, after catch fragmentation, liquid can be discharged in the short period of time from drain hole, both can prevent that in liquid chamber, the excessive sleeve that causes of pressure broke, can guarantee again that the kinetic energy of automobile transformed at short notice.
Further optimize the technical program, at least three broken buffer cells of car energy disperser, the axially-extending of front end edge sleeve of preposition crushing rod of preposition broken buffer cell that is positioned at front end is outside to sleeve.
The preposition broken buffer cell that is positioned at front end is positioned at headstock portion and the tailstock portion of automobile, during auto against, directly bear shock, preposition crushing rod is subject to clashing into and first catch is smashed, and then strikes the crushing rod of next broken buffer cell, and broken shock goes down successively; Be positioned at the length of the crushing rod of the preposition broken buffer cell of front end and directly determine the distance that hydraulic buffering mechanism can cushion.
Further optimize the technical program, at least three broken buffer cells of bumper for preventing car when collision connect by the flange of sleeve ends.
The length of auto body, structure, tonnage difference, the quantity of needed broken buffer cell is not identical yet, connects the length that can reasonably determine hydraulic buffering mechanism by flange, has improved the comformability of all size vehicle body of the present utility model.
Further optimize the technical program, the sleeve outer wall of bumper for preventing car when collision is covered with anti-rust paint coating.
Hydraulic buffering mechanism is fixed at normal state and car chassis, and anti-rust paint coating can prevent that sleeve outer wall from being adhered to rear corrosion by muddy water, improved service life of the present utility model.
Further optimize the technical program, the catch of bumper for preventing car when collision is that hard brittle material is made.Hard brittle material can guarantee that catch is broken for the smaller block fragmentation of volume, thereby can prevent from like this in process that crushing rod advances in sleeve not stopped and changing direction of propulsion or tip distortion is stuck in the sleeve wall of the broken buffer cell of subordinate by larger catch fragmentation.
The beneficial effects of the utility model are: bumper for preventing car when collision is installed on automobile, utilize multistage end to end broken buffer cell, kinetic transformation while spraying auto against by crashing step by step catch and liquid at high speed, both can extend the auto against time, reduce impact, can absorb the kinetic energy that collision produces again, thereby realize the object that human body and car body exempt from infringement simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of broken buffer cell in Fig. 1.
In figure, 1 broken 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.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Bumper for preventing car when collision shown in Fig. 1, Fig. 2, comprises and is fixed on car chassis leading section and/or the fixing hydraulic buffering mechanism of rearward end, it is characterized in that described hydraulic buffering mechanism comprises the broken buffer cell 1 of at least three head and the tail series connection; Described broken buffer cell 1 comprises that sleeve 2, sleeve 2 slipper seals have the crushing rod 4 with tip 3; On sleeve 1 inwall, in the outer side seal of tip 3 of crushing rod 4, be fixed with catch 5; In sleeve 2, it between catch 5 and crushing rod 4, is the liquid chamber 6 that is filled with liquid; The sleeve 2 in liquid chamber 6 outsides is provided with drain hole 7; In at least three broken buffer cells 1, be positioned at the axially-extending of front end edge sleeve 2 of preposition crushing rod 9 of preposition broken buffer cell 8 of front end to sleeve 2 outsides; At least three broken buffer cells 1 are by flange 10 connections of sleeve ends; Sleeve 2 outer walls are covered with anti-rust paint coating; Catch is that hard brittle material is made.
Hydraulic buffering mechanism can be arranged on the front and rear of car chassis, can adopt two or three hydraulic buffering mechanisms mode side by side, the area of thrust surface in the time of can connecting between preposition crushing rod 9 side by side to increase collision.
Different from traditional Federal bumper hydraulic damping device, catch 5 fragmentations of each broken buffer cell 1 and drain hole 7 earial drainages quantitatively absorb the kinetic energy that auto against produces step by step, after catch 5 is broken, liquid can be discharged in the short period of time from drain hole 7, both can prevent that the excessive sleeve 2 that causes of the interior pressure of liquid chamber 6 from breaking, and can guarantee that again the kinetic energy of automobile transforms at short notice.The utility model can adopt there is 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 auto against, and preposition crushing rod 9 is subject to clashing into and first catch 5 is smashed, and then strikes the crushing rod 4 of next broken buffer cell 1, and broken shock goes down successively; Preposition crushing rod 9 runs through successively from front to back the sleeve 2 of broken buffer cell 1 step by step when collision, and the length of preposition crushing rod 9 directly determines the distance that hydraulic buffering mechanism can cushion.
The length of auto body, structure, tonnage difference, the quantity of needed broken buffer cell 1 is not identical yet, by flange 10, connects the length that can reasonably determine hydraulic buffering mechanism, has improved the comformability of all size vehicle body of the present utility model.
Hydraulic buffering mechanism is fixed at normal state and car chassis, and anti-rust paint coating can prevent that sleeve 2 outer walls from being adhered to rear corrosion by muddy water, improved service life of the present utility model.Anti-rust paint can adopt the types such as iron oxide red or red lead.
Hard brittle material adopts pottery, organism glass, cast iron etc.) can guarantee that catch 5 is broken for the smaller block fragmentation of volume, thus can prevent that like this crushing rod 4 from not stopped that by larger catch 5 fragmentations change direction of propulsion or tip 3 distortions are stuck in the sleeve wall of the broken buffer cell 1 of subordinate in the process of sleeve 2 interior propellings.
Claims (4)
1. a bumper for preventing car when collision, comprises and is fixed on car chassis leading section and/or the fixing hydraulic buffering mechanism of rearward end, it is characterized in that described hydraulic buffering mechanism comprises the broken buffer cell (1) of at least three head and the tail series connection; Described broken buffer cell (1) comprises that sleeve (2), sleeve (2) slipper seal have the crushing rod (4) with tip (3); On sleeve (1) inwall, outside the tip (3) of crushing rod (4), side seal is fixed with catch (5); In sleeve (2), it between catch (5) and crushing rod (4), is the liquid chamber (6) that is filled with liquid; The sleeve (2) in liquid chamber (6) outside is provided with drain hole (7).
2. bumper for preventing car when collision according to claim 1, it is characterized in that in described at least three broken buffer cells (1), be positioned at the axially-extending of front end edge sleeve (2) of preposition crushing rod (9) of preposition broken buffer cell (8) of front end to sleeve (2) outside.
3. bumper for preventing car when collision according to claim 2, is characterized in that described at least three broken buffer cells (1) connect by the flange (10) of sleeve (2) end.
4. bumper for preventing car when collision according to claim 3, is characterized in that described sleeve (2) outer wall is covered with anti-rust paint coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133642.4U CN203793266U (en) | 2014-03-24 | 2014-03-24 | Collision buffer of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133642.4U CN203793266U (en) | 2014-03-24 | 2014-03-24 | Collision buffer of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203793266U true CN203793266U (en) | 2014-08-27 |
Family
ID=51375511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420133642.4U Expired - Fee Related CN203793266U (en) | 2014-03-24 | 2014-03-24 | Collision buffer of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203793266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879368B (en) * | 2014-03-24 | 2016-08-03 | 赵义龙 | Bumper for preventing car when collision |
-
2014
- 2014-03-24 CN CN201420133642.4U patent/CN203793266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879368B (en) * | 2014-03-24 | 2016-08-03 | 赵义龙 | Bumper for preventing car when collision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140827 Termination date: 20160324 |