CN2366315Y - Automobile shock absorber - Google Patents
Automobile shock absorber Download PDFInfo
- Publication number
- CN2366315Y CN2366315Y CN 99208407 CN99208407U CN2366315Y CN 2366315 Y CN2366315 Y CN 2366315Y CN 99208407 CN99208407 CN 99208407 CN 99208407 U CN99208407 U CN 99208407U CN 2366315 Y CN2366315 Y CN 2366315Y
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Abstract
The utility model relates to an automobile shock absorber, which comprises an inner cylinder which is connected to an automobile bumper. The rear end of the inner cylinder is provided with a rear piston which is arranged in an outer cylinder in a telescopic mode; the outer cylinder is divided into an energy precompression chamber A and an energy storing chamber C. A piston is arranged in the inner cylinder; the piston is connected to the front end of a diffuse rod; the inner cylinder is divided into an energy switching chamber B and an energy receiving chamber D. A device capable of conducting the A chamber and the C chamber is arranged on the rear piston connected to the inner cylinder; the A chamber is conducted with the B chamber through the diffuse rod; a throttling hole capable of conducting with the C chamber is arranged on the wall of the B chamber. Hydraulic oil is arranged in the outer cylinder; gas is arranged in the B chamber of the inner cylinder. The utility model can make automobiles absorb and consume energy when born with intense impact; consequently, rigid collision with objects is avoided; consequently, human bodies and automobile bodies are not damaged.
Description
The utility model relates to kind of a vehicle anticollision safety device, is a kind of automobile buffer specifically, is mainly used in the energy disperser of automobile front beam.
Automobile is a kind of modern means of communication of paramount importance.But since automobile came out, the collision case of automobile happened occasionally.Therefore along with the development of modern science and technology, the moving velocity of automobile is also more and more faster, when collision vehicle and the occupant brought infringement is also more and more come seriously, and people are also more and more higher to the requirement of vehicle safety performance for this reason.And in the accident of various auto againsts, the most serious with the collision damage of automotive front end.For alleviate auto against or car to car impact as far as possible and brought degree of damage, front portion at self-propelled vehicle is equipped with bumper/spoiler, but because this bumper/spoiler is essentially a rigid body, between itself and the car body also for being rigidly connected, therefore bumper/spoiler can play a role when auto against power is little, but then the ability of its anticollision is then very limited when this impact force is big.
At present, numerous automobile vendors is the more and more strong demand for security of satisfying the user, utilizes various high-tech means to design different vehicle anticollision devices.The method that it adopted generally is to the intensity of the easy colliding part that strengthens car body or is provided with the airbag that can controlledly open between vehicle and chaufeur and anterior occupant.When auto against, airbag is controlled to be opened every between car body and human body, injured to avoid human body.This kind air bag apparatus usually can occur can not opening the situation that human body still can be hurt in time because of it, and this kind airbag just protects at human body, and can not protect car body effectively simultaneously.
In sum, measure its buffer action when automobile is subjected to clashing into strongly that is used for the various anticollisions on the automobile at present is extremely limited, all can not be effectively and lower on one's own initiative automobile when collision because of impulsive force to infringement that human body and car body brought.
The purpose of this utility model is to provide a kind of automobile buffer, it can absorb and consumed energy when automobile is subjected to strong bump, allow passive becoming initiatively, make ground friction become mechanical friction, kinetic energy changes the compression energy into, thereby avoid the rigid collision with object, thereby automobile human body and car body when running at high speed strong bump all are without prejudice.
The purpose of this utility model is achieved in that a kind of automobile buffer, it is characterized in that including the inner core that is connected in Federal bumper, the rear end of this inner core is provided with primary piston, and telescopically be located in the urceolus, urceolus is separated energy precompression chamber A and energy commentaries on classics amount storage room C, be provided with a piston in the inner core, this piston is connected in the front end of a diffusion bar, and this piston separates into transformation of energy chamber B and energy receiving chamber D with inner core; But this primary piston that is connected in inner core is provided with the device of this A chamber of conducting and C chamber, the A chamber by the diffusion rod guidance lead in the B chamber, but on the wall of B chamber the institute conducting that is provided with in C chamber cutoff port; Hydraulic oil is housed in the urceolus, and the indoor gas that is filled with of inner core D.
The purpose of this utility model also can realize that the universal connector that described inner core passes through is connected in Federal bumper by following measure.Inner core is provided with injecting hole, and urceolus is provided with oil hole.Described diffusion bar is hollow form, and Qi Bishang is provided with through hole, and in A chamber and B chamber, the outer wall of this diffusion bar can be provided with vertical drain pan by this through hole conducting, by this drain pan conducting in A chamber and B chamber.The valve that is provided with can be check valve on the described primary piston; Inner core is positioned at the cutoff port place and is provided with scrobicular ring, is arranged with valve on this scrobicular ring, and this valve can move axially along scrobicular ring, and valve is provided with axially extending bore.Can be provided with axially extending bore on the above-mentioned primary piston, conducting is in C chamber and A chamber, this axially extending bore have aperture and hole count should less than or be less than the aperture and the hole count of the cutoff port that spreads bar.
Principle of work of the present utility model and effect are, the principle of work of the utility model energy disperser is exactly to utilize characteristic that gas is out of shape by compression and fluid and gas to change each other, the friction hear rate effect that the fluid high velocity stream is crossed the oil through road weakens automobile impact force, and it is made up of urceolus, inner core, diffusion bar, piston, limit scraper ring, sealing arrangement and A chamber, (energy precompression chamber) B chamber (transformation of energy chamber), C chamber (energy storages chamber) and D chamber (energy receiving chamber) etc.It is not when being subjected to external force, because the effect of gas, urceolus is in last position, and inner core all stretches out, and wherein hydraulic oil is equipped with in the A chamber, and D is equipped with gas in the chamber.
The principle that first step gas of the present utility model reduces impact cushions.，
As everyone knows, when two objects bump against, always to be subjected to impact, but during the object collision different with soft or hard of same object, the size that is subjected to impact is different, for example fist is beaten on stone, can feel very pain, is because the power of hitting that is subjected to is bigger, beat on cotton pad with regard to not bitterly, be that this phenomenon can be from Newton's second law because the impact that is subjected to is smaller, stone is very hard, be difficult for compression, fist bumps against with certain speed and it, and velocity potential must just disappear in a short period of time, in-service time is short, negative acceleration is bigger, and the impact that is subjected to is inevitable bigger, after bump against the cotton softer fist of pad and it, speed fades away in cotton pad compression process, in-service time is longer, and negative acceleration is less, and the impact that is subjected to is inevitable less.
The utility model utilizes this principle just, utilizes gas as first step shock absorber earlier, to reduce impact.Gas during car collision in the energy disperser is compressed absorption, pressure increases the effect of playing the compression of resistance automobile inertial gradually, so the bump velocity inertial of automobile is just by reducing greatly gradually, drop to zero at last, this compression stroke is not finished suddenly, but by inner core to the urceolus segment distance that moved, gas has produced to be realized behind sizable compressive deformation.Filling gas in the automobile buffer utilizes the compressible characteristic of this gas, prolongs the time that automobile impacting speed disappears, and negative acceleration is reduced, to reach the purpose that reduces impact.
The second step buffering of the present utility model realizes by fluid.
Its process is in knockout process, the pressure that most of bump kinetic energy changes gas into can absorb simultaneously, and inner core inserts urceolus, fluid in the urceolus is squeezed, oil pressure increases, be forced to from the longitudinal slot of diffusion bar front end and the aperture of central authorities, high velocity stream is to B chamber (transformation of energy chamber), and fluid is again under the gaseous tension effect, this time limit scraper ring of C chamber (energy storages chamber) that flows between the inner/outer tube through the throttle on the inner core produces friction, and a part of kinetic energy is converted into thermal energy consumption (hear rate effect).
After velocity of impact dropped to zero, the volume of inner/outer tube diminished, and air pressure increases, and the D chamber begins to uphold, and at this moment the valve in the C chamber is blocked, and made fluid flow back to urceolus A chamber through the aperture or the small-bore through hole of throttle on the inner core piston cutoff port on the B chamber.Because the aperture minimum velocity is big, so friction is more violent, the hear rate effect is very big, the bump kinetic energy of automobile is become heat energy in large quantities dissipate, and has avoided automobile to collide once more, prevents to move backward and the back auto against.
The explanation of accompanying drawing drawing:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a valve structure scheme drawing in the utility model;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model valve structure.
It is as follows to describe the utility model in detail below in conjunction with embodiment and accompanying drawing thereof:
Please join the first kind of embodiment that goes out present embodiment shown in Figure 1, mainly include the inner core 11 that is connected in Federal bumper, this inner core 11 is connected in Federal bumper by a universal connector, and this universal head is to be combined by Hooke's coupling 2 that is connected in the inner core front end and the universal base 1 that is connected in Federal bumper.The rear end of inner core 11 is fixedly connected with primary piston 8.Primary piston 8 telescopicallies are located in the urceolus 9, be provided with obturator between the barrel of its primary piston 8 and urceolus 9, and with urceolus 9 separate into energy precompression chamber A and can commentaries on classics amount storage room C two partly, this primary piston 8 is provided with valve 13, in the present embodiment, this valve 13 is a check valve, utilizes this valve conducting C chambers 13 and A chamber.A chamber end by urceolus 9 is provided with oil hole 10, utilizes this oil hole 10 to inject in urceolus behind the fluid again with oil hole 10 cap seals.
Be provided with a piston 5 in the inner core 11,11 of this piston 5 and inner cores also are provided with an obturator 16, and piston 5 separates into transformation of energy chamber B and energy receiving chamber D with inner core 11, are provided with injecting hole 3 by the D chamber end of inner core, after utilizing this injecting hole 3 with inner core 11 injecting gas, again with injecting hole 3 cap seals.
This diffusion bar 6 is hollow form, and the front end of a diffusion bar 6 is connected in this piston 5.The wall of diffusion bar 6 is provided with through hole 15, but by these through hole 15 conductings in A chamber and B chamber, the outer wall that spreads bar 6 also is provided with vertical drain pan 14, by this drain pan 14 also can conducting in A chamber and B chamber.The sidewall at the rear portion, B chamber of inner core is provided with cutoff port 17, but by these cutoff port 17 conductings in the C chamber of urceolus; Inner core 11 is positioned at cutoff port 17 places and is provided with a scrobicular ring 71, is arranged with a valve 7 on this scrobicular ring 71, and this valve 7 can move axially along this scrobicular ring 71, and valve 7 is provided with axially extending bore 72.
The utility model is fixed on the longitudinal girder of automobile in use, and universal base 1 is connected with the front bumper of automobile.Any point of Hooke's coupling 1 and universal base 2 when auto against can make energy disperser performance maximum effect.When the A constant pressure in urceolus 9 contracts when inner core 11 and primary piston 8, the pressure minimum that D is indoor, 9 of inner core 11 and urceolus produce a relative displacement, valve 7 with urceolus 9 forward slippage produce a little gap.The stifled oil holes of throttle 13 on the primary piston 8, force fluid in the A chamber from diffusion bar 6 cutoff port 15 and vertically drain pan 14 flow to B chamber (transformation of energy chamber) at a high speed, friction generates heat for the first time to make fluid, consumes kinetic energy, energy.When A chamber fluid flows into the B chamber at a high speed, D chamber (energy receiving chamber) compression movement of piston 5 in inner core 11 on the diffusion bar, gas in the D chamber is just the kinetic energy of bump, change the compression energy of gas into, absorb the energy of kinetic energy, simultaneously the smaller volume air pressure in the D chamber increases under the gas pressure of fluid in the D chamber in the B chamber at this moment fluid and by the cutoff port on the inner core 11 17 valve 7 is washed open and made fluid flow into C chamber (energy storages chamber) at a high speed, kinetic energy is transferred to heat energy energy storages chamber, produce friction for the second time, kinetic energy is transferred to thermal energy consumption fall.
After bump is finished, after energy disperser is compressed to zero, the energy that the D chamber absorbs storage begins to discharge, inner core 11 begins to uphold, at this moment the valve 7 on the inner core 11 is at the cutoff port 17 that moves backward under the effect of pressure and block on the inner core 11, make fluid open one-way throttle valve 13 on the primary piston 8 by its axial aperture 72, because the aperture on the throttle 13 is small, fluid is more at a high speed by throttle 13 aggravation flows, so it is more violent to rub, the hear rate effect is very big, the bump kinetic energy of automobile is produced friction for the third time to be transferred kinetic energy to thermal energy consumption once more and falls, avoid automobile to collide again and when preventing that automobile from moving backward and the auto against of back, guarantee passengers inside the car and vehicle safety.
The difference of second kind of embodiment of the present utility model and first kind of embodiment is that primary piston 8 is provided with axially extending bore 18, utilizes this axially extending bore conducting A chambers 18 and C chamber.The aperture of this axially extending bore 18 should much smaller than and be less than cutoff port 15 and vertical drain pan 14 on the diffusion bar, make conducting flow between C chamber and A chamber widely less than the conducting flow between A chamber and B chamber.Its principle of work is, when the primary piston 8 of inner core 11 compresses in urceolus 9, at first can by the cutoff port 15 of diffusion bar 6 and vertically drain pan 14 flow to the B chamber at high speed, make fluid produce that friction generates heat for the first time, consume energy; In this simultaneously, the axially extending bore 18 of the small-bore on the primary piston 8 is to the oiling of C chamber, and pushes valve 7 open, opens the cutoff port 17 between B chamber and C chamber.Because the pressure of A chamber and B chamber is much larger than the pressure of D chamber, the fluid of B chamber flows into the D chamber by the cutoff port on the inner core 11 17 soon.
After bump is finished, after energy disperser is compressed to zero, the indoor pressure of D is greater than the pressure of A chamber, the energy that absorbs storage begins to discharge, inner core 11 begins to uphold, at this moment the valve 7 on the inner core 11 is at the cutoff port 17 that moves backward under the effect of D room pressure and block on the inner core 11, make fluid flow back to the A chamber by the axial aperture 18 of primary piston 8, because the aperture on the axial aperture 18 is small, fluid more at a high speed by the time aggravation flow, so it is more violent to rub, the hear rate effect is very big, the bump kinetic energy of automobile is produced friction for the third time once more kinetic energy is transferred to thermal energy consumption and fall, avoid automobile to collide again and when preventing that automobile from moving backward and the auto against of back, guarantee passengers inside the car and vehicle safety.
Claims (8)
1, a kind of automobile buffer, it is characterized in that including the inner core that is connected in Federal bumper, the rear end of this inner core is provided with primary piston, and telescopically be located in the urceolus, urceolus is separated energy precompression chamber A and energy commentaries on classics amount storage room C, be provided with a piston in the inner core, this piston is connected in the front end of a diffusion bar, and this piston separates into transformation of energy chamber B and energy receiving chamber D with inner core; But this primary piston that is connected in inner core is provided with the device of this A chamber of conducting and C chamber, the A chamber by the diffusion rod guidance lead in the B chamber, but on the wall of B chamber the institute conducting that is provided with in C chamber cutoff port; Hydraulic oil is housed in the urceolus, and the indoor gas that is filled with of inner core D.
2, a kind of automobile buffer according to claim 1 is characterized in that the universal connector that described inner core passes through is connected in Federal bumper.
3, a kind of automobile buffer according to claim 1 is characterized in that described inner core is provided with injecting hole, and urceolus is provided with oil hole.
4, a kind of automobile buffer according to claim 1 is characterized in that described diffusion bar is hollow form, and Qi Bishang is provided with through hole, by this through hole conducting in A chamber and B chamber.
5, a kind of automobile buffer according to claim 1 is characterized in that the outer wall of described described diffusion bar can be provided with vertical drain pan, by this drain pan conducting in A chamber and B chamber.
6, a kind of according to claim 1 or 5 automobile buffer is characterized in that the valve that is provided with can be check valve on the described primary piston.
7, a kind of automobile buffer according to claim 1 is characterized in that inner core is positioned at the cutoff port place and is provided with scrobicular ring, is arranged with valve on this scrobicular ring, and this valve can move axially along scrobicular ring, and valve is provided with axially extending bore.
8, according to claim 1 or 7 described a kind of automobile buffers, it is characterized in that described primary piston is provided with axially extending bore, this axially extending bore have aperture and hole count should less than or be less than the aperture and the hole count of the cutoff port that spreads bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99208407 CN2366315Y (en) | 1999-03-30 | 1999-03-30 | Automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99208407 CN2366315Y (en) | 1999-03-30 | 1999-03-30 | Automobile shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366315Y true CN2366315Y (en) | 2000-03-01 |
Family
ID=34002185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99208407 Expired - Fee Related CN2366315Y (en) | 1999-03-30 | 1999-03-30 | Automobile shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366315Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067772A1 (en) * | 2006-12-06 | 2008-06-12 | Xi'an Tongyuan Petrotech Co., Ltd. | Buffer unit for perforation testing system of oil/gas well |
| CN104828000A (en) * | 2014-11-13 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crash box and vehicle having crash box |
| CN104842906A (en) * | 2014-08-20 | 2015-08-19 | 北汽福田汽车股份有限公司 | Energy absorption buffering device, anti-collision structure and vehicle |
| CN106240585A (en) * | 2016-08-26 | 2016-12-21 | 李聪 | Buffer compartment |
| CN106904217A (en) * | 2017-04-13 | 2017-06-30 | 安徽安凯汽车股份有限公司 | Impact protection apparatus before a kind of car |
| CN107228149A (en) * | 2017-06-04 | 2017-10-03 | 周满阳 | Buffer unit and buffer unit array that liquid gas coexists |
| CN109591740A (en) * | 2019-01-15 | 2019-04-09 | 康郦 | New automobile crash cushions |
| CN113650576A (en) * | 2021-08-02 | 2021-11-16 | 合肥工业大学 | Compound energy absorption box and automobile with same |
-
1999
- 1999-03-30 CN CN 99208407 patent/CN2366315Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067772A1 (en) * | 2006-12-06 | 2008-06-12 | Xi'an Tongyuan Petrotech Co., Ltd. | Buffer unit for perforation testing system of oil/gas well |
| CN104842906A (en) * | 2014-08-20 | 2015-08-19 | 北汽福田汽车股份有限公司 | Energy absorption buffering device, anti-collision structure and vehicle |
| CN104842906B (en) * | 2014-08-20 | 2017-04-05 | 北汽福田汽车股份有限公司 | Energy-absorbing buffer device, anti-collision structure and vehicle |
| CN104828000A (en) * | 2014-11-13 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crash box and vehicle having crash box |
| CN106240585A (en) * | 2016-08-26 | 2016-12-21 | 李聪 | Buffer compartment |
| CN106904217A (en) * | 2017-04-13 | 2017-06-30 | 安徽安凯汽车股份有限公司 | Impact protection apparatus before a kind of car |
| CN106904217B (en) * | 2017-04-13 | 2023-03-24 | 安徽安凯汽车股份有限公司 | Front collision protection device for passenger car |
| CN107228149A (en) * | 2017-06-04 | 2017-10-03 | 周满阳 | Buffer unit and buffer unit array that liquid gas coexists |
| CN109591740A (en) * | 2019-01-15 | 2019-04-09 | 康郦 | New automobile crash cushions |
| CN113650576A (en) * | 2021-08-02 | 2021-11-16 | 合肥工业大学 | Compound energy absorption box and automobile with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |