CN101269639A - Novel automobile body with collision-prevention device at trailing end - Google Patents
Novel automobile body with collision-prevention device at trailing end Download PDFInfo
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- CN101269639A CN101269639A CNA2007100899169A CN200710089916A CN101269639A CN 101269639 A CN101269639 A CN 101269639A CN A2007100899169 A CNA2007100899169 A CN A2007100899169A CN 200710089916 A CN200710089916 A CN 200710089916A CN 101269639 A CN101269639 A CN 101269639A
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Abstract
The invention relates to a novel vehicle body with an anti-collision device, and the vehicle body comprises a back anti-collision pole, a back piston mandril, a back piston cylinder end cover, a back piston cylinder, a back piston, a back piston reposition spring, a first tube type longitudinal beam, a second tube type longitudinal beam, a front tube type crossbeam, a back tube type crossbeam, a bottom closed piston cylinder, a front piston, a front plastic distortion piece, a front bumper, liquid pressure fluid, a piston type power consumption machine and a nozzle type power consumption machine, wherein, the back piston cylinder is fixedly connected with the back end of the tube type longitudinal beam, the bottom closed piston cylinder is fixedly connected with the front end of the tube type longitudinal beam, and the back piston cylinder is communicated with the bottom closed piston cylinder via the tube type longitudinal beam in order to be filled with liquid pressure fluid. The vehicle body can change stress state of vehicles in the collision process, and collision power can be consumed by the piston type power consumption machine and the nozzle type power consumption machine.
Description
Affiliated technical field
The present invention relates to active anticollision method of self-propelled vehicle and device, the novel automobile body of particularly a kind of rear end band anticollision device not only is fit to have body-chassis frame construction but also the suitable self-supporting body and the semi-integral body of rigid-frame.
Background technology
Automobile when offering convenience for human live and work, has also caused a large amount of personal casualty and property damage because of road traffic accident since 1886 come out.The accumulated number that car accedent is died from the whole world has surpassed the number of dying from war 20th century, and the whole world causes several hundred million people injured or disable because of mortality from automobile accidents's accumulative total surpasses 3,200 ten thousand people simultaneously till 2006.At present the whole world just in traveling automobile up to 7.2 hundred million, although extensively adopted safety methods such as safety strap, safety air bag, still have every year more than 70 ten thousand people to be killed in an automobile accident, 1000～1,500 ten thousand people are injured or disable, about 5,180 hundred million dollars of the annual economic loss that causes because of road traffic accident in the whole world.Because accounting for the automobile sum of the developing country of population advantage is increasing sharply, the total number of persons that car accedent is died from the whole world every year also will increase, expect global road fatalities in 2010 and will reach 1,000,000 people every year, wounded or disabled number surpasses 1,500 ten thousand, and the economic loss that cause because of road traffic accident global every year will be above 7,000 hundred million dollars.
Although anterior bump taken place in traffic accident sometimes or knocked into the back; under the protection of safety strap and safety air bag; there is not personal casualty; but caused automobile impaired; even need overhaul, also may cause rejection of car when serious; bring massive losses for car owner and insurance company, this is the high main reason of automobile insurance.
Motor traffic accidents is when bringing death, permanent disability, the trip of returning people has brought inconvenience, nearly all person for driving a car and rider ran into the situation that causes traffic paralysis because of traffic accident, thereby cause people can't catch up with airplane flight or train, cause that people go to work, meeting and commercial negotiation are late or delay.
Vehicle safety is affecting government, enterprise, insurance company, person for driving a car, rider and household's the heart constantly, and the safety that how to improve automobile is the great scientific research task of pendulum in face of the universe.
At present automobile the safety measure of extensive employing be exactly body-restraining seat belt and safety air bag.The statistics of traffic accidents data show: fastening under the situation of body-restraining seat belt, Effective Vate of Protection can reach 43%～49%; Under the situation of air bag safe in utilization only, Effective Vate of Protection has only 18%; Under the duplicate protection of body-restraining seat belt and safety air bag, can play the better protection effect, but still personal casualty unavoidably occur.It should be noted that safety air bag has only when forwardly clashing into just can open, and has no protective effect for such traffic accident of knocking into the back.
In order to protect occupant's safety; general dolly car anterior and afterbody as plastic deformation energy-absorbing energy-dissipating district; making the space invariance shape at occupant place to greatest extent, but still can not guarantee occupant's safety sometimes, this in addition mode is not suitable for cab-over-engine vehicle.
Many for this reason people have carried out big quantity research to automobile collision preventing, up to the present disclose hundreds of patents, and for example ZL200320119672.1 discloses safety lever front extensible automobile automatic collision safety device; ZL00205037.4 discloses the energy-storing automobile anticollision device; ZL03248553.0 discloses automobile head anticollision safety device; ZL96233407.3 discloses automobile collision preventing and has hit damping; ZL02277281.2 discloses the anticollision device that knocks into the back; ZL90105824.6 discloses auto against energy-absorbing damping safety lever.These crashproof measures can be divided into following several mode: utilize the compression spring energy-absorbing; Utilize hydraulic fluid cylinder energy-absorbing; Adopt air bag or tire energy-absorbing; Or in implementation process, these modes are made up.
Why the anticollision device of these patent disclosures can not obtain promotion and application, and its reason is to have following problem:
1) self-propelled vehicle vehicle body in knockout process all is in compressive state, and one side will cause motorcar body to deform and damage, and may cause driver and crew's a space of taking advantage of to be squeezed on the other hand, the critical people's of possibility life security when serious.
2) can only can't consume energy by energy-absorbing, promptly can not consume huge expenditure of energy or part, the problem of bringing thus is may backward acceleration occur after the automobile sharp impacts and make the occupant suffer bigger injury, even the car of being dished out causes personal casualty outward.
3) stressed spring of several whiles or can't absorb huge energy, or can't adapt to little collision.
4) hydraulic damping device is connected safety lever and vehicle beam or crossbeam with spring vibration damper while in-parallel, can not plays a role simultaneously, spring vibration damper can't play a role at all generally speaking, and its reason is that the compressibi1ity of fluid is very little.
5) it is impaired that any bump all can cause automobile, causes car owner and insurance company to bear economic loss.
Summary of the invention
The novel automobile body of a kind of rear end band anticollision device, it comprises Grard Assy, primary piston push rod, primary piston cylinder end cap, primary piston cylinder, primary piston, primary piston retracing spring, the first tubular type longeron, the second tubular type longeron, anterior tubular type crossbeam, rear portion tubular type crossbeam, base seal formula piston cylinder, front bumper, hydraulic fluid; Described primary piston cylinder is captiveed joint with the rear end of tubular type longeron; Described base seal formula piston cylinder is captiveed joint with the front end of tubular type longeron, and the tubular type longeron is connected primary piston cylinder, base seal formula piston cylinder, and be full of hydraulic fluid; Described primary piston push rod one end links to each other with primary piston, and the other end links to each other with Grard Assy; Described primary piston is within the primary piston cylinder, and its bottom surface contacts with the primary piston retracing spring; Described primary piston cylinder end cap links to each other with the primary piston cylinder.It is characterized in that described primary piston cylinder captives joint with the rear end of tubular type longeron; Described base seal formula piston cylinder is captiveed joint with the front end of tubular type longeron, and the tubular type longeron is connected primary piston cylinder, base seal formula piston cylinder, and be full of hydraulic fluid; In the rear impacts process, primary piston can make the pressure that reaches the hydraulic fluid in the tubular type frame assembly in the primary piston cylinder rise rapidly under the driving of primary piston push rod and Grard Assy, pressure passes to the bottom surface of base seal formula piston cylinder synchronously, impact is passed to the front portion of tubular type longeron by base seal formula piston cylinder.
Owing in the rear impacts process, can pass to impact the front portion of tubular type longeron, so just can make vehicle body be in extended state rather than compressive state, thereby change the strained condition of self-propelled vehicle in knockout process.
The present invention also utilizes the piston type energy dissipation device and the nozzle type energy dissipating machine that are connected on the tubular type frame assembly to come consumed energy, and the present invention not only is fit to have the body-chassis frame construction of rigid-frame, and suitable self-supporting body or semi-integral body.
The present invention is achieved in that
1) adopts the longitudinal and cross beam of rigid conduit, constitute the tubular type frame assembly as vehicle body.
2) at the rear portion of tubular type frame assembly the primary piston cylinder is installed, base seal formula piston cylinder is installed in the front portion of tubular type frame assembly; Have in the primary piston cylinder can be movable piston, an end of primary piston links to each other with the primary piston push rod, the other end links to each other with the primary piston retracing spring, the end of primary piston push rod is equipped with crash bar.
3) be interconnected between primary piston cylinder, base seal formula piston cylinder, tubular type longeron, the tubular type crossbeam, and full of liquid.
4) on the tubular type frame assembly piston type energy dissipation device is installed.This piston type energy dissipation device comprises high-pressure pipe, piston cylinder, piston, the bar of exerting pressure, plastic deformation part overcoat, plastic deformation part.
5) on the tubular type frame assembly nozzle type energy dissipating machine is installed also.This nozzle type energy dissipating machine comprises high-pressure pipe, fluid cushion chamber, the female pipe of nozzle, nozzle.The female Guan Shangke of nozzle installs a plurality of nozzles (hole), and all fluids that have enough spaces to hold to eject.After bump finished, these fluids can be back in the tubular type frame assembly by nozzle (hole) again.
Description of drawings
Fig. 1 is the novel automobile body scheme drawing of a kind of rear end of the present invention band anticollision device;
Fig. 2 is the scheme drawing of the piston type energy dissipation device of the novel automobile body of a kind of rear end of the present invention band anticollision device;
Fig. 3 is the scheme drawing of the nozzle type energy dissipating machine of the novel automobile body of a kind of rear end of the present invention band anticollision device;
Fig. 4 is the novel automobile body ground second embodiment scheme drawing of a kind of rear end of the present invention band anticollision device;
Fig. 5 is the A-A cutaway view of Fig. 4.
Wherein Reference numeral is as follows:
Grard Assy 1, primary piston push rod 2, primary piston cylinder end cap 3, primary piston cylinder 4, primary piston 5, primary piston retracing spring 6, the first tubular type longeron 7, the second tubular type longeron 8, rear portion tubular type crossbeam 9, piston type energy dissipation device 10, nozzle type energy dissipating machine 11, anterior tubular type crossbeam 12, secondary piston 13, base seal formula piston cylinder 14, anterior plastic deformation part 15, front bumper 16, back elbow joint 17, piston depth pressure pipe 101, piston cylinder 102, piston 103, the bar 104 of exerting pressure, plastic deformation part overcoat 105, plastic deformation part 106, nozzle high-pressure pipe 111, fluid cushion chamber 112, the female pipe 113 of nozzle, nozzle 114.
The specific embodiment
First embodiment:
Fig. 1 is the novel automobile body scheme drawing of a kind of rear end of the present invention band anticollision device; Fig. 2 is the scheme drawing of the piston type energy dissipation device of the novel automobile body of a kind of rear end of the present invention band anticollision device; Fig. 3 is the scheme drawing of the nozzle type energy dissipating machine of the novel automobile body of a kind of rear end of the present invention band anticollision device.
Easy in order to describe, the application only describes the novel automobile body left part of a kind of rear end band anticollision device, and its right side part is corresponding with the left part symmetry.For the sake of simplicity, omit description to its right side part.
As Fig. 1～shown in Figure 3, the novel automobile body of a kind of rear end of the present invention band anticollision device comprises Grard Assy 1, primary piston push rod 2, primary piston cylinder end cap 3, primary piston cylinder 4, primary piston 5, primary piston retracing spring 6, the first tubular type longeron 7, the second tubular type longeron 8, rear portion tubular type crossbeam 9, piston type energy dissipation device 10, nozzle type energy dissipating machine 11, anterior tubular type crossbeam 12, secondary piston 13, base seal formula piston cylinder 14, anterior plastic deformation part 15, front bumper 16, hydraulic fluid.Some middle parts tubular type crossbeam does not mark in the drawings
The described first tubular type longeron 7, the second tubular type longeron 8, rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12, some middle parts tubular type crossbeam all are rigid conduits, the described first tubular type longeron 7 is interconnective by rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12, some middle parts tubular type crossbeam and the second tubular type longeron 8, connect mutually between the described first tubular type longeron 7, the second tubular type longeron 8, rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12, the some middle parts tubular type crossbeam, and be full of hydraulic fluid.
The described first tubular type longeron 7, the second tubular type longeron 8, rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12 and some middle parts tubular type crossbeam constitute the tubular type frame assembly, and these tubular type frame assemblys can be body-chassis frame construction or self-supporting body or semi-integral body.
Described primary piston cylinder 4 is captiveed joint with the rear end of the first tubular type longeron 7; Described base seal formula piston cylinder 14 is captiveed joint with the front end of the first tubular type longeron 7, and the first tubular type longeron 7 is connected primary piston cylinder 4, base seal formula piston cylinder 14, and be full of hydraulic fluid; Described primary piston push rod 2 one ends link to each other with primary piston 5, link to each other with Grard Assy 1 and the other end passes primary piston cylinder end cap 3; Described primary piston 5 is within the primary piston cylinder 4, and its bottom surface contacts with primary piston retracing spring 6; Described primary piston cylinder end cap 3 links to each other with primary piston cylinder 4; Described secondary piston 13 is within the base seal formula piston cylinder 14, and its bottom surface contacts with described anterior plastic deformation part 15.
When self-propelled vehicle generation rear impact, Grard Assy 1, primary piston push rod 2 and primary piston 5 whole reaches, primary piston 5 squeezed fluid hydraulic fluid and primary piston retracing spring 6, thus the hydraulic fluid of compression flows to the first tubular type longeron 7 from the rear end flowing hole of primary piston cylinder 4.After collision finished, Grard Assy 1, primary piston push rod 2 and primary piston 5 moved after the integral body under 6 effects of primary piston retracing spring, restore to the original state.Certainly, also can between Grard Assy 1 and primary piston cylinder end cap 3, place elastic element, to reach reset response, not shown to primary piston 5.
As shown in Figure 2, described piston type energy dissipation device 10 comprises piston depth pressure pipe 101, piston cylinder 102, piston 103, the bar 104 of exerting pressure, plastic deformation part overcoat 105, plastic deformation part 106; Wherein piston depth pressure pipe 101 communicates with the above-mentioned first tubular type longeron 7, when vehicle generation rear impact, the hydraulic fluid that bears impact pressure flows to described piston type energy dissipation device 10 from the first tubular type longeron 7, enter piston depth pressure pipe 101 and piston cylinder 102 successively, promote piston 103 motions, piston 103 drives the bar 104 monolithic extruded plastic deformation parts 106 of exerting pressure, and part will consume by the plastic deformation of plastic deformation part 106 thereby will collide the huge kinetic energy that is produced.
As shown in Figure 3, described nozzle type energy dissipating machine 11 comprises nozzle high-pressure pipe 111, fluid cushion chamber 112, the female pipe 113 of nozzle, nozzle 114.Wherein nozzle high-pressure pipe 111 communicates with the above-mentioned first tubular type longeron 7, when vehicle generation rear impact, the hydraulic fluid that bears impact pressure flows to described nozzle type energy dissipating machine 11 from the first tubular type longeron 7, enter the female pipe 113 of nozzle high-pressure pipe 111 and nozzle successively, high-voltage hydraulic fluid sprays in the fluid cushion chamber 112 through the nozzle 114 of the female pipe 113 of nozzle, thereby will collide the huge kinetic energy that is produced, and convert the kinetic energy of hydraulic fluid and heat energy to through nozzle 114 and consume.
The described first tubular type longeron 7 links to each other with rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12, described piston type energy dissipation device 10, described nozzle type energy dissipating machine 11 respectively again.
In like manner, the primary piston cylinder of self-propelled vehicle opposite side links to each other by the second tubular type longeron 8, and the described second tubular type longeron 8 links to each other with rear portion tubular type crossbeam 9, anterior tubular type crossbeam 12, the piston type energy dissipation device of opposite side, the nozzle type energy dissipating machine of opposite side respectively again.
Described tubular type longeron, tubular type crossbeam, piston cylinder, base seal formula piston cylinder and high-pressure pipe all are full of hydraulic fluid.
When self-propelled vehicle during in travels down, when in case rear impacts can't be avoided, knocked object at first contacts Grard Assy 1 and primary piston push rod 2, primary piston 5 passed to impact immediately by primary piston push rod 2, primary piston 5 will move in primary piston cylinder 4, thereby impact is passed to hydraulic fluid in the primary piston retracing spring 6 and the first tubular type longeron 7, cause pressure to rise, pressure passes on the secondary piston 13 synchronously, secondary piston 13 passes to impact on the anterior plastic deformation part 15 again, pass to the front portion of tubular type longeron at last by the base seal formula piston cylinder that contacts with anterior plastic deformation part, vehicle body will be in extended state this moment, thereby can guarantee effectively that self-propelled vehicle is not extruded distortion in the rear impact process.
After rear impacts begins, fluid pressure in the tubular type frame assembly rises rapidly, high pressure hydraulic fluid will advance by the piston 103 that piston depth pressure pipe 101 promotes piston type energy dissipation device 10, and bar 104 advanced in unison of exerting pressure that are attached thereto, the bar 104 of exerting pressure will force plastic deformation part 106 that plastic deformation takes place, thereby reach the purpose that part consumes Impact energy.
After rear impacts begins, fluid pressure in the tubular type frame assembly rises rapidly, high pressure hydraulic fluid will flow to nozzle type energy dissipating machine 11 by nozzle high-pressure pipe 111, and high pressure hydraulic fluid sprays at a high speed from nozzle 114, thereby reach the purpose that part consumes Impact energy.
When rear impacts just finished, the fluid in the tubular type frame assembly remained high pressure conditions, can continue to spray the fluid pressure that reduces in the tubular type frame assembly by nozzle 114, reached balance always and no longer sprayed, thereby reach the purpose that releases energy.
After rear impacts finishes, primary piston 5 and primary piston push rod 2 will set back under the effect of primary piston retracing spring 6, and hydraulic fluid will be back in the first tubular type longeron 7 from fluid cushion chamber 112 this moment.
Second embodiment:
Fig. 4 is the scheme drawing of novel automobile body second embodiment of a kind of rear end of the present invention band anticollision device, and Fig. 5 is the A-A cutaway view of Fig. 4.Second embodiment and first is implemented substantially the same, and be not both with first embodiment: second embodiment has increased back elbow joint 17 respectively in the first tubular type longeron, 7 rear ends, has increased the back elbow joint too at opposite side.
Other embodiment:
Described piston type energy dissipation device 10 of above-mentioned embodiment and described nozzle type energy dissipating machine 11 can be selected in the novel automobile body that a ground is applied to a kind of rear end of the present invention band anticollision device, also can select at least one described piston type energy dissipation device 10, also can select at least one described nozzle type energy dissipating machine 11 as the energy-absorbing energy-dissipating element, thereby be combined into many embodiments.
Described piston type energy dissipation device 10 of above-mentioned embodiment and described nozzle type energy dissipating machine 11 can be applied in the novel automobile body of a kind of rear end of the present invention band anticollision device with the varying number array mode, as adopt the different combination of one or more piston type energy dissipation device 10 and one or more nozzle type energy dissipating machine 11, constitute many different embodiments.
The piston type energy dissipation device 10 of above-mentioned embodiment and/or nozzle type energy dissipating machine 11 also can be connected on first and second tubular type longeron 7,8 and/or the front and rear portions tubular type crossbeam 12,9, thereby constitute many various combination modes.Also the piston type energy dissipation device 10 and/or the nozzle type energy dissipating machine 11 of varying number can be connected on first and second tubular type longeron 7,8 and/or the front and rear portions tubular type crossbeam 12,9, also can constitute many various combination modes.
The present invention can also apply the present invention to prevent on the side impact.
Should be appreciated that the present invention is not limited to above-mentioned embodiment, above-mentioned preferred implementation only is exemplary, those skilled in the art can make the various modifications that are equal to and replacement and various combination, and obtain different embodiments according to spirit of the present invention.
The present invention has following effect:
1) novel automobile body that proposes first to utilize a kind of rear end band anticollision device, collision-prevention device passes to vehicle body with rear impacts power The front portion makes vehicle body be in extended state in knockout process. When motor vehicle generation rear impact, by piston and hydraulic pressure Fluid passes to motor vehicle front end to impact, and motor vehicle moves ahead continuing under the effect of inertia force, and impact passes to machine To make motor vehicle accelerate to move ahead behind the motor-car front portion, vehicle body will be in extended state this moment.
2) having proposed first to utilize the hydraulic drive piston also to drive the bar of exerting pressure forces the distortion of plastic deformation part to come catabiotic Principle.
3) propose first to utilize nozzle to discharge the energy of tubular type vehicle frame inner high voltage hydraulic fluid, greatly reduced motor vehicle Bump strength, and greatly reduced the bounce of high pressure hydraulic fluid.
4) nozzle not only can release energy in knockout process, after collision finishes, as long as the fluid in the tubular type vehicle frame is still located In high pressure conditions, nozzle will release energy.
5) utilize piston type energy dissipation device and nozzle type energy dissipating machine to discharge the energy equivalence of tubular type vehicle frame inner high voltage hydraulic fluid In the compressed coefficient that has increased hydraulic fluid, overcome the problem that gas compressibility factor is excessive, liquid compressibility factor is too small.
6) occupant's safety can be effectively protected, motor vehicle can be effectively protected.
7) when general bump takes place, motor vehicle and occupant will not be subjected to any infringement, can avoid minor accident also will report Alert, as to cause traffic paralysis situation occurs.
8) can greatly reduce the danger that occurs when colliding at a high speed.
9) after the present invention applies, can greatly alleviate the traffic congestion or the paralysis situation that cause because of traffic accident, will be to day The benefit congested traffic brings glad tidings and just decrease road accident rate, Traffic Casualties rate.
10) after the present invention applies, will reduce the compensation amount of money of insurance company greatly.
Claims (10)
1. the novel automobile body of a rear end band anticollision device, it comprises Grard Assy, primary piston push rod, primary piston cylinder end cap, primary piston cylinder, primary piston, primary piston retracing spring, the first tubular type longeron, the second tubular type longeron, anterior tubular type crossbeam, rear portion tubular type crossbeam, base seal formula piston cylinder, front bumper, hydraulic fluid; Described primary piston cylinder is captiveed joint with the rear end of tubular type longeron; Described base seal formula piston cylinder is captiveed joint with the front end of tubular type longeron, and the tubular type longeron is connected primary piston cylinder, base seal formula piston cylinder, and be full of hydraulic fluid; Described primary piston push rod one end links to each other with primary piston, and the other end links to each other with Grard Assy; Described primary piston is within the primary piston cylinder, and its bottom surface contacts with the primary piston retracing spring; Described primary piston cylinder end cap links to each other with the primary piston cylinder.It is characterized in that the described first tubular type longeron, the second tubular type longeron, anterior tubular type crossbeam, rear portion tubular type crossbeam, some middle parts tubular type crossbeam all are rigid conduits; Described primary piston cylinder is captiveed joint with the rear end of tubular type longeron; Described base seal formula piston cylinder is captiveed joint with the front end of tubular type longeron, and the tubular type longeron is connected primary piston cylinder, base seal formula piston cylinder, and be full of hydraulic fluid.
2. the novel automobile body of a kind of rear end according to claim 1 band anticollision device is characterized in that also comprising the secondary piston and the anterior plastic deformation part that are in the base seal formula piston cylinder.
3. the novel automobile body of a kind of rear end according to claim 1 band anticollision device is characterized in that the piston type energy dissipation device that comprises that also at least one is connected with the tubular type frame assembly.
4. the novel automobile body of a kind of rear end according to claim 1 band anticollision device is characterized in that the nozzle type energy dissipating machine that comprises that also at least one is connected with the tubular type frame assembly.
5. according to the novel automobile body of claim 3 or 4 described a kind of rear end band anticollision devices, it is characterized in that described tubular type frame assembly comprises the first tubular type longeron, the second tubular type longeron, anterior tubular type crossbeam, rear portion tubular type crossbeam, some middle parts tubular type crossbeam.
6. according to the novel automobile body of claim 1 or 3 described a kind of rear end band anticollision devices, it is characterized in that described piston type energy dissipation device comprises piston depth pressure pipe, piston cylinder, piston, the bar of exerting pressure, plastic deformation part overcoat, plastic deformation part; Described piston type energy dissipation device is to link to each other with the tubular type frame assembly by the piston depth pressure pipe; Described piston is within the piston cylinder; Described bar one end of exerting pressure links to each other with piston, and the other end contacts with the plastic deformation part; Described plastic deformation part places in the plastic deformation part overcoat; Described plastic deformation part overcoat links to each other with piston cylinder; The described piston and the bar of exerting pressure can be movable; Described hydraulic fluid flows to described piston type energy dissipation device from the tubular type frame assembly, enters piston depth pressure pipe and piston cylinder successively, the driven plunger motion, and piston drives the bar extruding plastic deformation part of exerting pressure.
7. according to the novel automobile body of claim 1 or 4 described a kind of rear end band anticollision devices, it is characterized in that described nozzle type energy dissipating machine comprises nozzle high-pressure pipe, fluid cushion chamber, the female pipe of nozzle, nozzle; Described nozzle type energy dissipating machine is communicated with the tubular type frame assembly by the nozzle high-pressure pipe; Described nozzle links to each other with the female pipe of nozzle; Described hydraulic fluid flows to described nozzle type energy dissipating machine from the tubular type frame assembly, enters the female pipe of nozzle high-pressure pipe and nozzle successively, hydraulic fluid through the nozzle ejection of the female pipe of nozzle in the fluid cushion chamber.
8. the novel automobile body of a kind of according to claim 1 or 5 rear end band anticollision device is characterized in that described first and second tubular type longeron can be a straight beam.
9. the novel automobile body of a kind of according to claim 1 or 5 rear end band anticollision device is characterized in that described first and second tubular type longeron can be a camber beam.
10. the novel automobile body of a kind of rear end according to claim 1 band anticollision device is characterized in that also comprising the back elbow joint that is connected with the tubular type frame assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100899169A CN101269639A (en) | 2007-03-19 | 2007-03-19 | Novel automobile body with collision-prevention device at trailing end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100899169A CN101269639A (en) | 2007-03-19 | 2007-03-19 | Novel automobile body with collision-prevention device at trailing end |
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| Publication Number | Publication Date |
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| CN101269639A true CN101269639A (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100899169A Pending CN101269639A (en) | 2007-03-19 | 2007-03-19 | Novel automobile body with collision-prevention device at trailing end |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487285A (en) * | 2017-08-02 | 2017-12-19 | 山东郓城金达挂车制造有限公司 | A kind of detachable skeleton car |
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2007
- 2007-03-19 CN CNA2007100899169A patent/CN101269639A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487285A (en) * | 2017-08-02 | 2017-12-19 | 山东郓城金达挂车制造有限公司 | A kind of detachable skeleton car |
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Open date: 20080924 |