CN102126474A - Power car collision device of belt pipe wall type jet energy dissipator - Google Patents
Power car collision device of belt pipe wall type jet energy dissipator Download PDFInfo
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- CN102126474A CN102126474A CN2010101049623A CN201010104962A CN102126474A CN 102126474 A CN102126474 A CN 102126474A CN 2010101049623 A CN2010101049623 A CN 2010101049623A CN 201010104962 A CN201010104962 A CN 201010104962A CN 102126474 A CN102126474 A CN 102126474A
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- 239000007924 injection Substances 0.000 claims description 147
- 239000007921 spray Substances 0.000 claims description 55
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- 238000000034 method Methods 0.000 abstract description 28
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- 238000007710 freezing Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 45
- 238000005507 spraying Methods 0.000 description 27
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- 231100000517 death Toxicity 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
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- 239000006227 byproduct Substances 0.000 description 2
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- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
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Abstract
The invention relates to a power car collision device of a belt pipe wall type jet energy dissipater, which comprises a piston cylinder, pipe wall jet holes, a jet buffer chamber, a liquid drainage pipe, a low-pressure connecting pipe and an anti-freezing box. The device is characterized in that the piston cylinder wall is provided with at least one pipe wall jet hole, and the periphery of all the pipe wall jet holes is provided with the jet buffer chamber; the pipe wall jet holes sequentially pass through the wall of the piston cylinder along the longitudinal direction of the piston cylinder; the liquid drainage pipe is fixedly connected with the jet buffer chamber; and one end of the low-pressure connecting pipe is connected with the liquid drainage pipe, while the other end is connected with the anti-freezing liquid box. The device can be used for reducing the acceleration peak value of a vehicle body and can achieve the purposes of first softness and then hardness in a collision process of the vehicle body, automatically adapt to 100 percent front collision and offset collision, achieve the purposes of firstly preventing front collision and then preventing rear-end collision and guarantee that the vehicle body is in a stretching state in the collision process so as to greatly improve the safety of the vehicle.
Description
Technical field
The present invention relates to a kind of anticollision device for vehicle, particularly a kind of collision of motor-driven vehicles device that sprays energy consumer with the tube wall formula.
Background technology
Self-propelled vehicle 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.Up to the present the whole world is because of mortality from automobile accidents accumulative total surpasses 3,400 ten thousand people, causes several hundred million people injured or disable simultaneously.Point out in " road safety whole world situation " report of delivering on June 15th, 2009 according to The World Health Organization (WHO): the death toll that related to road traffic accident in 2008 is up to 1,200,000, injured or disable and reach 2000～3,000 ten thousand, the annual economic loss that causes because of traffic accident in the whole world is above 7,000 hundred million dollars.
Existing self-propelled vehicle vehicle body in knockout process all is in compressive state, and this will cause motorcar body to deform on the one hand and damage, and may cause driver and crew's the space of taking to be squeezed on the other hand, the critical occupant's of possibility life security when serious.For example steering column and bearing circle all can move and the occupant's that fiercelys attack head and chest when self-propelled vehicle is subjected to clashing into backward, NCAP (new car assessment routine) is defined under standard testing speed 50～64km/h, as long as the distance that steering column moves backward is no more than 12.7cm; All can move backward and make lower limb of passenger injured as stretcher when self-propelled vehicle is subjected to clashing into, be no more than 20cm as long as NCAP is defined in the distance that stretcher moves backward under the standard testing speed.In actual traffic accident, the speed of many self-propelled vehiclees has all surpassed the standard testing speed of NCAP, and the crew department is out of shape acutely, even complete obiteration, and many people are actually and are extruded and dead, and this is traffic death rate and the high major cause of injury rate.The anti-performance that knocks into the back of existing self-propelled vehicle obviously is worse than the frontal collision preventing performance in addition, and this is to cause knocking into the back the traffic death rate also than major reason for higher.
U.S. Pat 3797872 has proposed at motor vehicle front end and afterbody piston propelling energy absorber to be installed all, and undergauge valve (reducing valve) has been installed between secondary piston cylinder and connection pipe, and the undergauge valve also has been installed between primary piston cylinder and connection pipe; When the front portion bumps, anterior crash bar will piston by the piston mandril band and move backward, Yun Dong piston will force the fluid pressure in the piston cylinder to increase backward, fluid after the supercharging will be sprayed onto in the connection pipe at a high speed by the undergauge valve, because the throttling action of undergauge valve, huge pressure reduction is arranged before and after the undergauge valve, a thrust backward will be produced, this thrust backward will make connection pipe be in squeezed state, that is to say that motorcar body is in compressive state, when collision velocity is higher, gross distortion will take place in self-propelled vehicle, even may be with front-seat driver and crew's asphyxia by external pressure on the chest and abdomen.In like manner, when afterbody bumps, the afterbody crash bar will piston advances forward by the piston mandril band, proal piston will force the hydraulic pressure in the piston cylinder to increase, fluid after the supercharging will be sprayed onto in the connection pipe at a high speed by the undergauge valve, because the throttling action of undergauge valve, huge pressure reduction is arranged before and after the undergauge valve, a thrust forward will be produced, this thrust forward will make connection pipe be in squeezed state, that is to say that motorcar body is in compressive state, when collision velocity is higher, gross distortion will take place in self-propelled vehicle, even may be with back row occupant asphyxia by external pressure on the chest and abdomen.That is to say that this patent motorcar body in collision process always is in compressive state, promptly this patent can not guarantee that motorcar body is in extended state in collision process.
The patent CN201046689 that the applicant submits to has announced a kind of novel automobile body with anticollision device, this patent can make motorcar body be in extended state in knockout process, and energy consumes by nozzle type energy dissipating machine and the piston type energy dissipation device that is installed on the tubular type longeron.But there is following problem in this patent: 1. in collision process, because the nozzle quantity that participates in spraying is a unmodified, test results shows that the motorcar body velocity curve is the half range sine curve, piston advances about 2/3 distance to consume 92% self-propelled vehicle kinetic energy, remain about 1/3 distance and only consume 8% self-propelled vehicle kinetic energy, show as the too high and vehicle body acceleration peak value height of fluid pressure peak value in the tubular type longeron.Reducing pressure peak and reducing acceleration peak value is the problem that will solve.2. when and then rear-end impact taking place after the motor vehicle front end collision earlier, motorcar body may be in compressive state.This is because when front shock takes place, secondary piston has stretched into the bottom of secondary piston cylinder, rear-end impact takes place this moment, when primary piston was pushed ahead, secondary piston also will travel forward simultaneously, and the reseting procedure of secondary piston consumes any energy hardly, the pressure of the liquid in the tubular type longeron can not set up yet, this moment, nozzle type energy dissipating machine and piston type energy dissipation device all can't play a role, the serious crimp of motorcar body possibility quilt this moment, even cause the occupant to be extruded injures and deaths.3. when self-propelled vehicle bumps with very high speed, the advance distance of secondary piston push rod may be greater than designed distance, crash bar will directly impact on the piston cylinder end cap this moment, will cause motorcar body to be in compressive state, may cause personal casualty when serious.4. no matter be 100% complete head-on crash or 70% offset collision, the nozzle quantity that participates in spraying is a unmodified, can not satisfy 100% complete head-on crash and 70% offset collision simultaneously.This is because left and right two secondary pistons that link to each other with Guard Assy during 100% complete head-on crash all participate in absorbing energy, can be the volume sum of two piston cylinders for the liquid volume of spraying, Comparatively speaking respectively bear the impact of half this moment because of two pistons, so the pressure in the tubular type longeron is low, because spray velocity is directly proportional with two/first power of pressure, cause liquid jeting speed low like this, the liquid volume that ejects under the situation of same nozzle number is less than normal; And when 70% offset collision, have only a piston to participate in absorbing energy, the volume that can have only a piston cylinder for the liquid volume of spraying, Comparatively speaking have only a piston to bear whole impacts this moment, pressure in the tubular type longeron is big, liquid jeting speed is big, the liquid volume that ejects under the situation of same nozzle number is on the high side, may cause motorcar body crimp when serious, even personal casualty occur.5. no matter be rear-end impact or head-on crash, the nozzle number that participates in spraying is a unmodified, is unfavorable for optimizing frontal collision preventing design and preventing collision design like this.When 6. side collision taking place, it is as many participating in the nozzle number of injection and the nozzle number of head-on crash process participation injection, is unfavorable for the rapid foundation of fluid pressure, is unfavorable for rapidly the impact of a side being passed to opposite side.7. the high-velocity fluid that comes out from nozzle ejection will produce bigger impact, and this patent can not utilize this impact to help motorcar body to be in extended state.8. as can be seen by preceding surface analysis: after head-on crash takes place, consumed energy hardly in the secondary piston back off procedure, secondary piston resets and does not meet obstructions, and the easy like this self-propelled vehicle speed situation bigger than normal that has a rebound that causes is unfavorable for personal protection.If 9. only use nozzle type energy dissipating machine, all jet fluids all will be sprayed onto the fluid cushion chamber, this just requires the fluid cushion chamber to design bigger volume.10. spring is too soft, and very light collision all can cause the car body distortion, is unfavorable for industrial applications; Spring is put into piston cylinder bottom and is unfavorable for reducing piston cylinder length in addition, also is unfavorable for industrial applications.
Summary of the invention
The present invention will reduce the acceleration peak value of self-propelled vehicle and reduce pressure peak, will guarantee that exactly it is and then preventing collision again of first frontal collision preventing that self-propelled vehicle possesses two-way crashproof function, and can guarantee that vehicle body is in extended state; Guarantee that motorcar body also always is in extended state in high speed head-on crash process; To improve side collision exactly; To reduce the roll-over accident of self-propelled vehicle in the head-on crash process exactly; Will realize exactly can 100% frontal collision preventing, can prevent offset collision effectively again; The injection hole number that will make the side collision process participate in spraying exactly is less than the injection hole number that the head-on crash process participates in injection.
A kind of collision of motor-driven vehicles device with tube wall formula injection energy consumer of the present invention, it comprises piston cylinder, piston, it is characterized in that being provided with at least one tube wall injection hole on described piston in cylinder wall, is provided with one in all tube wall injection hole peripheries and sprays surge chamber.
A kind of collision of motor-driven vehicles device that sprays energy consumer with the tube wall formula of the present invention also comprises the drain pipe that is fixedly linked with described injection surge chamber (12), the low-pressure connection tube that links to each other with described drain pipe, the anti-freezer box that links to each other with described low-pressure connection tube; Also comprise out at least one the piston injection hole on piston; Described piston injection hole extends through piston head from piston base.
The present invention is achieved in that
1) on piston cylinder, processes at least one tube wall injection hole earlier.
2) will spray surge chamber is connected on the piston cylinder.
3) drain pipe is installed on the injection surge chamber, connects anti-freezer box and drain pipe with low-pressure connection tube.
The present invention has following effect:
1) can reduce the interior fluid pressure peak value of tubular type longeron, can reduce the motorcar body acceleration peak value, can reduce the requirement of strength or the thickness requirement of tubular type longeron.
2) can realizing colliding tube wall that early stage participation sprays, to spray hole count many, the tube wall injection hole count that later stage participates in injection is few, can realize that the vehicle body collision is soft in early days, the collision later stage is hard, and promptly early stage impact is little, it is big that the later stage impact becomes, and more helps protecting the self-propelled vehicle that bumps with it; Because the early stage injection hole count of spraying of participating in is many, pressure is suppressed not quite, thereby spray velocity is also little, and consumes energy and square being directly proportional of spray velocity, so show as softlyer in early days, impact is smaller.In order to understand this section words better, make two hypothesis: if one to be the injection hole count of participate in spraying infinite many, just can not suppress any pressure, also can't obtain bigger spray velocity, just do not consume how many energy yet; Another is that hypothesis participate in to be sprayed without any injection hole, and pressure moment reaches very high, and impact will be very huge, and vehicle body acceleration will be very big also.
3) can guarantee that self-propelled vehicle possesses two-way crashproof function, promptly first frontal collision preventing and then again can preventing collision, and can guarantee that motorcar body is in extended state.
4) can guarantee that motorcar body also always is in extended state in high speed head-on crash process.
5) the injection hole number that can make the side collision process participate in spraying reduces, and can improve the performance of anti-side collision greatly.
6) can realize to prevent 100% head-on crash, can prevent offset collision effectively again.
7) because the crew department is indeformable, it is mobile backward to avoid self-propelled vehicle that steering column and bearing circle take place when running at high speed behind the front shock, thereby can protect occupant's head and chest better, can significantly reduce occupant's injury or death.
8) it is mobile backward to avoid self-propelled vehicle that the front shock rear pedal takes place when running at high speed, thereby can protect occupant's lower limb better.
9) can greatly reduce the overturning and the accident of wagging the tail.
Description of drawings
Fig. 1 is a kind of collision of motor-driven vehicles Unit Installation scheme drawing that sprays energy consumer with the tube wall formula of the present invention;
Fig. 2 is a kind of cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Fig. 3 is a kind of A-A face cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Fig. 4 is a kind of B-B face cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Fig. 5 is double-piston and piston mandril cross-sectional schematic;
Fig. 6 looks scheme drawing for a double-piston and a piston mandril left side;
Fig. 7 is a kind of connection schematic top plan view of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Fig. 8 closes scheme drawing for a kind of part of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Fig. 9 is a kind of Close All scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 10 has showed and then preventing collision scheme drawing of a kind of collision of motor-driven vehicles device elder generation frontal collision preventing that sprays energy consumer with the tube wall formula of the present invention;
Figure 11 is a kind of second embodiment cutaway view that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 12 sprays second embodiment of the collision of motor-driven vehicles device of energy consumer connection diagram is installed with the tube wall formula for the present invention is a kind of;
Figure 13 is a kind of the 3rd embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 14 is a kind of the 3rd embodiment cutaway view that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 15 is a kind of the 4th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 16 is a kind of the 5th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention;
Figure 17 is a kind of the 6th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention.
Wherein Reference numeral is as follows:
The specific embodiment
Since almost symmetrical about motor-vehicle chassis, for the convenience of describing, the left-hand component of self-propelled vehicle is only described, and the identical part in the right is no longer described." at least one " of the present invention is interpreted as more than or equal to one, and smaller or equal to n, the span of n is determined by product size and art technology general knowledge.
First embodiment
Fig. 1 is a kind of collision of motor-driven vehicles Unit Installation scheme drawing that sprays energy consumer with the tube wall formula of the present invention; Fig. 2 is a kind of cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Fig. 3 is a kind of A-A face cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Fig. 4 is a kind of B-B face cross-sectional schematic of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Fig. 5 is double-piston and piston mandril cross-sectional schematic; Fig. 6 looks scheme drawing for a double-piston and a piston mandril left side; Fig. 7 is a kind of connection schematic top plan view of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Fig. 8 closes scheme drawing for a kind of part of spraying the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Fig. 9 is a kind of Close All scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Figure 10 has showed and then preventing collision scheme drawing of a kind of collision of motor-driven vehicles device elder generation frontal collision preventing that sprays energy consumer with the tube wall formula of the present invention.
Because the motor-vehicle chassis left-right symmetric for the convenience of describing, is only described the left-hand component of self-propelled vehicle.
As Fig. 1～shown in Figure 10, a kind of collision of motor-driven vehicles device that sprays energy consumer with the tube wall formula of the present invention comprises first crash bar 1, first piston push rod 2, the first pretension sleeve pipe 3, first piston cylinder end cap 4, first piston injection hole tightening seal washer 5, first piston cylinder 6, first piston seal ring 7, first piston 8, first pin hole 9, first pin 10, first fix screw 11, spray surge chamber 12, drain pipe 13, low-pressure connection tube 14, anti-freezer box 15, the first tubular type longeron 16, second crash bar 17, second piston mandril 18, the second pretension sleeve pipe 19, the second piston cylinder end cap 20, the second piston injection hole tightening seal washer 21, second piston cylinder 22, second obturator piston ring 23, second piston 24, second pin hole 25, second pin 26, second fix screw 27, freeing pipe 28, plug 29, the second tubular type longeron 30, the first tubular type crossbeam 31, the second tubular type crossbeam 32, three-tube type crossbeam 33, the first tube wall injection hole 601, the second tube wall injection hole 602, the 3rd tube wall injection hole 603, the 4th tube wall injection hole 604.
Described first piston cylinder 6 is captiveed joint with the front end of the first tubular type longeron 16 that has fluid passage concurrently; Described first piston cylinder end cap 4 is installed in the front portion of first piston cylinder 6; Described first piston push rod 2 one ends link to each other with the top of first piston 8, and the other end passes first piston injection hole tightening seal washer 5, first piston cylinder end cap 4 successively, link to each other with first crash bar 1 at last.Described first piston 8 comprises first piston injection hole 801, the second piston injection hole 802, the 3rd piston injection hole 803, the 4th piston injection hole 804, the 5th piston injection hole 805, the 6th piston injection hole 806, the 7th piston injection hole 807, the 8th piston injection hole 808 again.Described second piston 24 is identical with described first piston 8 principles.Above-mentioned these piston injection holes run through the top of first piston 8 from the bottom of first piston 8; Described first piston seal ring 7 is installed on the first piston 8; Described first pin hole 9 is opened on first piston push rod 2; Described first pin 10 is installed in first pin hole 9; The described first pretension sleeve pipe, 3 one ends link to each other with first piston cylinder 6, and the other end links to each other with first crash bar 1; Under the effect of the first pretension sleeve pipe 3, first piston injection hole tightening seal washer 5 is pressed between the end face and first piston cylinder end cap 4 of first piston 8 tightly; Described first fix screw 11 is used to connect the first pretension sleeve pipe 3 and first piston cylinder 6; Described injection surge chamber 12 is fixedly linked with first piston cylinder 6; Described drain pipe 13 is fixedly linked with injection surge chamber 12; Described low-pressure connection tube 14 1 ends link to each other with anti-freezer box 15, and the other end links to each other with drain pipe 13.The described first tube wall injection hole 601, the second tube wall injection hole 602, the 3rd tube wall injection hole 603, the 4th tube wall injection hole 604 run through the wall of first piston cylinder 6.
Described second piston cylinder 22 is captiveed joint with the rear end of the first tubular type longeron 16 that has fluid passage concurrently; The described second piston cylinder end cap 20 is installed in the front portion of second piston cylinder 22; Described second piston mandril, 18 1 ends link to each other with the top of second piston 24, and the other end passes the second piston injection hole tightening seal washer 21, the second piston cylinder end cap 20 successively, links to each other with second crash bar 17 at last; Described second piston 24 and first piston 8 be the same all to have a plurality of piston injection holes; Described second obturator piston ring 23 is installed on second piston 24; Described second pin hole 25 is opened on second piston mandril 18; Described second pin 26 is installed in second pin hole 25; The described second pretension sleeve pipe, 19 1 ends link to each other with second piston cylinder 22, and the other end links to each other with second crash bar 17; Described freeing pipe 28 is opened on second piston cylinder 22; Described plug 29 is installed on the freeing pipe 28; Under the effect of the second pretension sleeve pipe 19, the second piston injection hole tightening seal washer 21 is pressed between the end face and the second piston cylinder end cap 20 of second piston 24 tightly; Described second fix screw 27 is used to connect the second pretension sleeve pipe 19 and second piston cylinder 22.
The first tubular type longeron 16 that has fluid passage concurrently constitutes the tubular type longeron that has fluid passage concurrently with the second tubular type longeron 30 that has fluid passage concurrently.The described first tubular type crossbeam, 31 1 ends that have fluid passage concurrently link to each other with the first tubular type longeron 16 that has fluid passage concurrently, and the other end links to each other with the second tubular type longeron 30 that has fluid passage concurrently; The described second tubular type crossbeam, 32 1 ends that have fluid passage concurrently link to each other with the first tubular type longeron 16 that has fluid passage concurrently, and the other end links to each other with the second tubular type longeron 30 that has fluid passage concurrently; Described three-tube type crossbeam 33 1 ends that have fluid passage concurrently link to each other with the first tubular type longeron 16 that has fluid passage concurrently, and the other end links to each other with the second tubular type longeron 30 that has fluid passage concurrently.
It is to connect mutually that the described first tubular type longeron 16 that has fluid passage concurrently, the second tubular type longeron 30 that has fluid passage concurrently, the first tubular type crossbeam 31 that has fluid passage concurrently, piston injection hole, the piston injection hole on second piston 24, the tube wall formula on the second tubular type crossbeam 32 of fluid passage, the three-tube type crossbeam 33 that has fluid passage concurrently, first piston cylinder 6, second piston cylinder 22, the first piston 8 of having concurrently are sprayed energy consumer, and is full of anti-freezer.
How does a kind of collision of motor-driven vehicles device with tube wall formula injection energy consumer of following surface analysis the present invention prevent head-on crash and guarantees that vehicle body is in extended state in collision process? how to prevent rear-end impact and guarantee that vehicle body is in extended state in collision process? first frontal collision preventing preventing collision and guarantee that vehicle body is in extended state in collision process and then how? how to improve side anticollision performance? how to adapt to 100% complete head-on crash and offset collision automatically?
Does 1) how the present invention prevent head-on crash and guarantees that vehicle body is in extended state in collision process? is the tube wall formula sprayed energy consumer and how to be worked?
When self-propelled vehicle generation head-on crash, promptly this moment, first crash bar 1 was positioned at the front portion of self-propelled vehicle, impact is at first cut off first pin 10 and is squeezed the first pretension sleeve pipe 3 bad, first crash bar 1 then, first piston push rod 2 with have all piston injection holes 801,802,803,804,805,806,807,808 first piston 8 moves together backward, under the extruding of first piston 8, impact passes to the bottom of second piston 24 immediately, second piston 24 passes to impact on the second piston cylinder end cap 20 by the second piston injection hole tightening seal washer 21 again, because the second piston cylinder end cap 20, second piston cylinder 22 is connected successively with the first tubular type longeron 16 that has fluid passage concurrently, to be subjected to backward tensile force so have the first tubular type longeron 16 of fluid passage and second piston cylinder 22 concurrently, the first tubular type longeron 16 and second piston cylinder 22 that promptly have fluid passage concurrently are in extended state, thereby can guarantee effectively that occupant space forwardly is not extruded distortion in the collision process.
Because the pressure of anti-freezer rises rapidly, highly pressurised liquid will be by two approach injection consumed energies: first approach is that highly pressurised liquid will be by all piston injection holes 801,802,803,804,805,806,807,808 on the first piston 8 high speed jet and consumed energy forward; The anti-freezer that ejects from all piston injection holes 801,802,803,804,805,806,807,808 enters in the annular space that end face, first piston cylinder end cap 4, first piston cylinder 6, the first piston push rod 2 of first piston 8 form; Because the liquid of high speed jet injects directly on first piston injection hole tightening seal washer 5 and the first piston cylinder end cap 4, thereby first piston cylinder 6 will be subjected to tensile force forward, promptly first piston cylinder 6 also is in extended state; First piston cylinder 6, the first tubular type longeron 16 that has fluid passage concurrently and second piston cylinder 22 all are in extended state in sum, this means that not only occupant space forwardly is not extruded distortion in the collision process, and can guarantee that driving engine squeeze and destroy can not take place.
Second approach is that highly pressurised liquid will spray the collision of motor-driven vehicles device high speed jet of energy consumer and consumed energy with the tube wall formula by the present invention is a kind of.When just bumping, the anti-freezer that ejects from all tube wall injection holes 601,602,603,604 enters injection surge chamber 12, is discharged in the anti-freezer box 15 by drain pipe 13 and low-pressure connection tube 14 then.
Can see from Fig. 8～9: when first piston 8 had just pushed away the first tube wall injection hole 601, the first tube wall injection hole 601 no longer participates in spraying, have only this moment the second tube wall injection hole 602, the 3rd tube wall injection hole 603, the 4th tube wall injection hole 604 to participate in spraying, because the total hole count that participates in spraying will reduce, help improving the hardness of later stage collision.
In like manner: when first piston 8 pushed away the second tube wall injection hole 602, the 3rd tube wall injection hole 603, the 4th tube wall injection hole 604 successively, the total hole count that participates in spraying was with less and less, and the later stage hardness of collision will be more and more high.When the tube wall injection hole was all closed, this moment, the piston type injection hole became the approach of unique power consumption.
Does 2) how the present invention prevent rear-end impact and guarantees that vehicle body is in extended state in collision process?
When self-propelled vehicle generation rear-end impact, promptly this moment, second crash bar 17 was positioned at the rear portion of self-propelled vehicle, impact is at first cut off second pin 26 and is squeezed the second pretension sleeve pipe 19 bad, second crash bar 17 then, second piston mandril 18 moves forward with second piston 24 that has the piston injection hole, under the extruding of second piston 24, the pressure of anti-freezer rises rapidly, impact passes to the bottom of first piston 8 immediately, first piston 8 passes to impact on the first piston cylinder end cap 4 by first piston injection hole tightening seal washer 5 again, because first piston cylinder end cap 4, first piston cylinder 6 is connected successively with the first tubular type longeron 16 that has fluid passage concurrently, to be subjected to forward tensile force so have the first tubular type longeron 16 of fluid passage and first piston cylinder 6 concurrently, the first tubular type longeron 16 and the first piston cylinder 6 that promptly have fluid passage concurrently are in extended state, thereby can guarantee effectively that occupant space is not extruded distortion in the rear impact process.
Because the pressure of anti-freezer rises rapidly, highly pressurised liquid will spray consumed energies by two approach: first approach is piston injection hole that highly pressurised liquid will be by second piston 24 high speed jet and a consumed energy backward, and the piston injection hole number on second piston 24 can be different with first piston 8 upper piston injection hole numbers; The anti-freezer that ejects from these piston injection holes enters in the annular space of second piston, 24 end faces, the second piston cylinder end cap 20, second piston cylinder 22,18 formation of second piston mandril; Because the liquid of high speed jet injects directly on the second piston injection hole tightening seal washer 21 and the second piston cylinder end cap 20, thereby second piston cylinder 22 will be subjected to tensile force backward, promptly second piston cylinder 22 also is in extended state; Second piston cylinder 22, the first tubular type longeron 16 and the first piston cylinder 6 that have fluid passage concurrently all are in extended state in sum.Second approach is that highly pressurised liquid will spray the collision of motor-driven vehicles device high speed jet of energy consumer and consumed energy with the tube wall formula by the present invention is a kind of, but can't close the tube wall injection hole this moment.
3) first frontal collision preventing preventing collision and guarantee that vehicle body is in extended state in collision process and then how?
A chain of knocking into the back often occur and cause the accident of mass casualties on express highway, promptly head-on crash at first takes place that the real traffic accident of rear-end impact then takes place is quite a lot of in a chassis, and it is very short with the time gap between the generation rear-end impact that head-on crash takes place.
Figure 10 has showed and then preventing collision scheme drawing of a kind of collision of motor-driven vehicles device elder generation frontal collision preventing that sprays energy consumer with the tube wall formula of the present invention, does not mark the ruined first pretension sleeve pipe 3, first pin 10, the second pretension sleeve pipe 19, second pin 26 among the figure.At first head-on crash has taken place in the postulated mechanism motor-car, can know from top analysis, this moment, first piston 8 was in the rear portion of first piston cylinder 6, and in the annular space that is formed by end face, first piston cylinder end cap 4, first piston cylinder 6, the first piston push rod 2 of first piston 8 anti-freezer was arranged; In very short time after the head-on crash generation end, even rear-end impact just then taken place at 0.05 second, impact is at first cut off second pin 26 and is squeezed the second pretension sleeve pipe 19 bad, second crash bar 17, second piston mandril 18 and second piston 24 move forward together then, under the extruding of second piston 24, the pressure of the anti-freezer in the first tubular type longeron 16 rises rapidly, and anti-freezer will spray and consumed energy backward by the piston injection hole on second piston 24; Under the pressure differential effect, anti-freezer in the annular space that the end face of first piston 8, first piston cylinder end cap 4, first piston cylinder 6, first piston push rod 2 constitute will spray and consumed energy backward, that is to say that first piston 8 quick reseting procedures also will consume big energy.Because the pressure of the anti-freezer in the annular space that the end face of first piston 8, first piston cylinder end cap 4, first piston cylinder 6, first piston push rod 2 constitute rises rapidly, impact has been passed to first piston cylinder end cap 4, because first piston cylinder end cap 4, first piston cylinder 6, the first tubular type longeron 16 are interconnective, the first piston cylinder 6 and the first tubular type longeron 16 will be in extended state like this.That is to say and formerly finish in the head-on crash back to back rear-end impact process afterwards, power consumption will take place to spray in piston injection hole, the piston injection hole on the first piston 8 on second piston 24 on the one hand, and the tube wall injection hole will participate in successively by the order of the 4th tube wall injection hole 604, the 3rd tube wall injection hole 603, the second tube wall injection hole 602, the first tube wall injection hole 601 spraying and consume energy on the other hand.
It is worth noting sprayable anti-freezer volume especially except the volume of second piston cylinder 22, the liquid of the annular space of the end face of first piston 8, first piston cylinder end cap 4, first piston cylinder 6, first piston push rod 2 formations is also participated in and is sprayed power consumption in addition.
4) how to improve side anticollision performance?
As can be seen from Figure 7: when the self-propelled vehicle left surface bumps, crimp will take place in the first tubular type longeron 16 that has fluid passage concurrently, owing to have only the tube wall injection hole to take place to spray and consumed energy, cause having concurrently the first tubular type longeron 16 of fluid passage, have the second tubular type longeron 30 of fluid passage concurrently, have the first tubular type crossbeam 31 of fluid passage concurrently, have the second tubular type crossbeam 32 of fluid passage concurrently, the three-tube type crossbeam 33 interior anti-freezer pressure that have fluid passage concurrently rise rapidly, pressure will cause having concurrently the tubular type crossbeam (31 of fluid passage, 32,33) be in extended state, impact will pass to the right side from the left side, can reduce crew department's distortion so to greatest extent.In like manner, when right flank bumps, impact will pass to the left side from the right side, can reduce crew department's distortion equally to greatest extent.
5) how to adapt to 100% complete head-on crash and offset collision automatically?
The injection hole number that anti-freezer pressure during below according to Fig. 7 comparative analysis 100% complete head-on crash and offset collision, spray velocity, participation are sprayed.
Can see: when 100% complete head-on crash takes place, because with the first tubular type longeron 16, the first piston 8 that the second tubular type longeron 30 links to each other will be stressed together all, the pressure of tubular type longeron and the interior anti-freezer of tubular type crossbeam is with relative less, because spray velocity is directly proportional with pressure differential two/first power, so spray velocity is less relatively, but it is a lot of to participate in the injection hole number of spraying during 100% complete head-on crash, both comprised the piston injection hole on the first piston 8 on the left side that links to each other with the first tubular type longeron 16, comprise the piston injection hole on the first piston 8 on the right that links to each other with the second tubular type longeron 30 again, also comprise the tube wall injection hole.Spray velocity relatively hour has more injection hole to participate in spraying like this, has adapted to the needs of 100% complete head-on crash preferably.
When offset collision takes place when, if collision occurs in the left side, since have only that the left side promptly links to each other with the first tubular type longeron 16 first piston 8 stressed, the tubular type longeron becomes big with the pressure of the interior anti-freezer of tubular type crossbeam with relative, so it is big that spray velocity becomes relatively, but the injection hole number that participates in injection during offset collision is less relatively, include only piston injection hole and tube wall injection hole on the left side first piston 8, the piston injection hole on the first piston 8 on the right that link to each other with the second tubular type longeron 30 this moment is not participated in injection.There is less injection hole to participate in spraying when spray velocity is relatively large like this, adapted to the needs of offset collision preferably.
Second embodiment
Figure 11 is a kind of second embodiment cutaway view that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Figure 12 sprays second embodiment of the collision of motor-driven vehicles device of energy consumer connection diagram is installed with the tube wall formula for the present invention is a kind of.Second embodiment is substantially the same with first embodiment: removed low-pressure connection tube 14 and anti-freezer box 15 on the first embodiment basis, increased drain pipe sealing plug 34 newly; Described drain pipe sealing plug 34 is installed on the drain pipe 13.When collision takes place, the pressure that sprays in the surge chamber 12 will increase sharply, and drain pipe sealing plug 34 is with destroyed, and anti-freezer will be ejected in the air.
The 3rd embodiment
Figure 13 is a kind of the 3rd embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention; Figure 14 is a kind of the 3rd embodiment cutaway view that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention.
The 3rd embodiment is substantially the same with first embodiment: unique different be to spray surge chamber 12 to have become drum, corresponding therewith all tube wall injection holes be distributed to first piston cylinder 6 around.
The 4th embodiment
Figure 15 is a kind of the 4th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention.
The 4th embodiment is substantially the same with first embodiment: removed injection surge chamber 12, drain pipe 13, low-pressure connection tube 14 and anti-freezer box 15 on the first embodiment basis, increased injection hole sealing plug 35 newly; Described injection hole sealing plug 35 is installed on all tube wall injection holes 601,602,603,604.When collision takes place, the pressure of first piston cylinder 6 will increase sharply, injection hole sealing plug 35 is with destroyed, anti-freezer with high speed jet in air, to definitely avoid high-velocity fluid (maximum speed can surpass 300m/s, is equivalent to pistol cartridge speed) directly to injure occupant and roadside pedestrian or bounce-back consequential injury occupant and roadside pedestrian during this scheme implementation.
The 5th embodiment
Figure 16 is a kind of the 5th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention.
The 5th embodiment is substantially the same with first embodiment: unique different be at all piston injection holes 801,802,802,803,804,805,806,807,808 that removed on the first embodiment basis on the first piston 8.
The 6th embodiment
Figure 17 is a kind of the 6th embodiment scheme drawing that sprays the collision of motor-driven vehicles device of energy consumer with the tube wall formula of the present invention.
The 6th embodiment is substantially the same with first embodiment, unique different be that the tube wall injection hole is not opened on piston cylinder, but open on tubular type longeron 16, these tube wall injection holes are the 5th tube wall injection hole 1601, the 6th tube wall injection hole 1602, the 7th tube wall injection hole 1603, the 8th tube wall injection hole 1604.The 6th embodiment can't be closed the 5th tube wall injection hole 1601, the 6th tube wall injection hole 1602, the 7th tube wall injection hole 1603, the 8th tube wall injection hole 1604.
Other embodiment
At least one tube wall injection hole of the present invention is interpreted as more than or equal to one, smaller or equal to n, the span of n is determined by product size and art technology general knowledge, it can be 1, it can be 200, also can be the Any Digit in 1～200, thereby can constitute many different embodiments; Described tube wall formula injection hole can be opened on the tubular type crossbeam, thereby constitutes different embodiments; 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.
Claims (8)
1. collision of motor-driven vehicles device that sprays energy consumer with the tube wall formula, it comprises piston cylinder (6), piston (8), it is characterized in that being provided with at least one tube wall injection hole (601,602,603,604) on described piston cylinder (6) wall, is provided with one in all tube wall injection holes (601,602,603,604) periphery and sprays surge chamber (12).
2. band tube wall formula according to claim 1 is sprayed the collision of motor-driven vehicles device of energy consumer, it is characterized in that also comprising the drain pipe (13) that is fixedly linked with described injection surge chamber (12), the low-pressure connection tube (14) that links to each other with described drain pipe (13), the anti-freezer box (15) that links to each other with described low-pressure connection tube (14).
3. band tube wall formula according to claim 1 is sprayed the collision of motor-driven vehicles device of energy consumer, it is characterized in that also comprising the drain pipe (13) that is fixedly linked with described injection surge chamber (12) and is installed in drain pipe sealing plug (34) on the described drain pipe (13).
4. according to the collision of motor-driven vehicles device of claim 1 or 2 or 3 described band tube wall formulas injection energy consumers, it is characterized in that also comprising out at least one the piston injection hole (801,802,803,804,805,806,807,808) on piston (8); Described piston injection hole (801,802,803,804,805,806,807,808) extends through piston head from piston base.
5. one kind is sprayed the collision of motor-driven vehicles device of energy consumer with the tube wall formula, and it comprises that piston cylinder (6), piston (8), tubular type longeron (16), described tubular type longeron (16) link to each other with piston cylinder (6) bottom; It is characterized in that on described tubular type longeron (16) wall, being provided with at least one tube wall injection hole (1601,1602,1603,1604), be provided with one in all tube wall injection holes (1601,1602,1603,1604) periphery and spray surge chamber (12).
6. band tube wall formula according to claim 5 is sprayed the collision of motor-driven vehicles device of energy consumer, it is characterized in that also comprising out at least one the piston injection hole (801,802,803,804,805,806,807,808) on piston (8); Described piston injection hole (801,802,803,804,805,806,807,808) extends through piston head from piston base.
7. spray the collision of motor-driven vehicles device of energy consumers according to claim 5 or 6 described band tube wall formulas, it is characterized in that also comprising the drain pipe (13) that is fixedly linked with described injection surge chamber (12), the low-pressure connection tube (14) that links to each other with described drain pipe (13), the anti-freezer box (15) that links to each other with described low-pressure connection tube (14).
8. spray the collision of motor-driven vehicles device of energy consumers according to claim 5 or 6 described band tube wall formulas, it is characterized in that also comprising the drain pipe (13) that is fixedly linked with described injection surge chamber (12) and be installed in drain pipe sealing plug (34) on the described drain pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101049623A CN102126474A (en) | 2010-01-14 | 2010-01-14 | Power car collision device of belt pipe wall type jet energy dissipator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101049623A CN102126474A (en) | 2010-01-14 | 2010-01-14 | Power car collision device of belt pipe wall type jet energy dissipator |
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| Publication Number | Publication Date |
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| CN102126474A true CN102126474A (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101049623A Pending CN102126474A (en) | 2010-01-14 | 2010-01-14 | Power car collision device of belt pipe wall type jet energy dissipator |
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| CN (1) | CN102126474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674347A (en) * | 2018-06-15 | 2018-10-19 | 温欣 | Anti- highly pressurised liquid buffer bumper |
-
2010
- 2010-01-14 CN CN2010101049623A patent/CN102126474A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674347A (en) * | 2018-06-15 | 2018-10-19 | 温欣 | Anti- highly pressurised liquid buffer bumper |
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Application publication date: 20110720 |