CN2848642Y

CN2848642Y - Sectional buffer fender guard of vehicle

Info

Publication number: CN2848642Y
Application number: CN 200520098527
Authority: CN
Inventors: 胡桂平
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-31
Filing date: 2005-10-31
Publication date: 2006-12-20
Anticipated expiration: 2015-10-31

Abstract

The utility model relates to a sectional buffering bumper of a vehicle. The utility model relates to a buffering bumper for safety and collision prevention, which is suitable for a vehicle. A front bumper is composed of a medium bridge section and two moving arm sections, wherein the medium bridge section and the moving arm sections are connected with a push rod. A vibration damping spring is sheathed outside the push rod extending into a piston cylinder body connected with a vehicle chassis, a front supporting rack, etc. A back bumper is composed of a medium bridge section and two moving arm sections, wherein the two moving arm sections are connected with a push rod. A vibration damping spring is sheathed outside the push rod extending into the piston cylinder body connected with the vehicle chassis and the back supporting rack. The push rod is connected with a push rod column plug into a whole. The utility model utilizes a lever principle to realize that the bumper is assembled into a whole body in a section mode, and the outer shape of the bumper is not exposed. Thus, the shape and the appearance of an original vehicle are not influenced. When the front and the back bumpers collide with an obstacle, external force is transferred to a piston by the sections to push a piston cylinder column plug. Impact force and shock are released and absorbed at a maximum degree for reducing damage to a human body and a vehicle body through the mutual impedance action of the vibration damping spring and a medium.

Description

Vehicle sectional type buffer bumper

Technical field

The utility model relates to a kind of buffer bumper that is applicable to vehicle in order to anticollision.

Background technology

At present, known all vehicle bumpers all are to be fastened on the vehicle with the whole connection of vehicle chassis, this hard connection can not bear safety device and the enormous impact power when decomposing collision happens, also just can not be car body and personal safety infringement are attenuated to minimum level, thereby, on the intention of vehicle design and assembling bumper/spoiler, its due function of bumper/spoiler does not obtain rationally, gives full play to.Design can crash-proof vehicle bumper for this reason, as " the crashproof protective device of a kind of improved power actuated vehicle " (patent No. 89214581), it comprises that being fixed on the bumper/spoiler back works the oil cylinder that cushions shock damping action, the cylinder of some control usefulness, by pass valve, control cock etc. are formed impact detection, brake execution, buffering damping and four parts that reset by these parts." a kind of damping device of vehicle bumper " (patent No. 97244720), it is provided with bumper/spoiler, force transmission shaft, pressing plate, shock-proof spring, upper shell, capping, feature is that the upper shell lower end is provided with lower house, be provided with upper piston and lower piston in the lower house, upper piston is connected with pipe link, upper piston is connected by the steel wire bar with lower piston, lower house between upper piston and the lower piston is provided with air gate, the lower house lower end is provided with oil outlet, upper shell of the present utility model is connected with the vehicle longeron with lower house, when collision happens, through three grades of bumper and absorbing shocks." a kind of bumper that is used for fixing front part of vehicle " (number of patent application 20041003305), comprise that has the center beam of bumper that fwd is elongated, compressible energy absorbing foam material along the longitudinal extension of described center beam of bumper, with a bumper skin that hides described foamed materials, described front is provided with at least one pressure part backward along the longitudinal extension of described center beam of bumper.Described material has the first and the second portion of giving prominence to forward from the front of center beam of bumper that are received in the pressure part, and when receiving collision impact, the second portion pressurized enters the pressure part like this.

Summary of the invention

The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of external form, outward appearance that can not change original vehicle, can bring into play the vehicle sectional type buffer bumper of bumper/spoiler in the anticollision effect of protecting vehicle itself to be played again to greatest extent.

The implementation of the utility model purpose is, vehicle sectional type buffer bumper, the swing arm section 6 of jackshaft section 8 and both sides, 16 form front bumper, push rod 5,10,18 respectively with jackshaft section 8, swing arm section 8,16 movable span 15 is connected, push rod 5,10,18 other ends are overcoat shock-proof spring 3 respectively, and stretch into and be assembled in the piston/cylinder 1, piston/cylinder 1 and vehicle chassis 21,19 fastening linking to each other of front support stand, push rod 5,10,18 respectively with piston/cylinder 1 in push rod plunger body 20 be processed as one, push rod plunger body 20, push rod 5,10,18 surface and piston/cylinder 1 inwall precision-fit, the swing arm section 22 of jackshaft section 25 and both sides, 29 form rear bumper, push rod 30,33 other ends are overcoat shock-proof spring 3 respectively, and extend in the piston/cylinder 1, piston/cylinder 1 and vehicle chassis 21, bracket of rear mounting 31 is fastening continuous, push rod 30,33 respectively with piston/cylinder 1 in push rod plunger body 20 be processed as one.

The utility model utilizes lever principle that the bumper/spoiler segmented general is dressed up an integral body, the bumper/spoiler of general assembly can accomplish that in shape meticulous joint close is just like global facility, interconnector is hidden under shell and need not be exposed, neither influence the design shape and the outward appearance of original vehicle, give the function of bumper/spoiler practicality again.The utility model by the front and back bumper rail when bumping with obstacle, the mode of utilizing the lever principle interlock to transmit external force by each segmentation of bumper rail promotes the piston cylinder plunger, common hindrance function through built-in shock-proof spring of piston/cylinder and medium, make vehicle when crashing, limit slowly-releasing with maximum absorbs impulsive force and shakes the infringement of bringing for the person and car body, thereby alleviates the injury to the vehicle chassis and the person.

Description of drawings

Fig. 1 is the utility model front bumper arrangement scheme drawing

Fig. 2 is the utility model rear bumper structural representation

The specific embodiment

The utility model is by the forward and backward sectional type bumper rail of vehicle and be fixed on and be attached thereto the pool of buffer piston cylinder that connects on the vehicle frame and form.The utility model is described in detail in detail with reference to the accompanying drawings.

With reference to Fig. 1, the jackshaft section 8 of front bumper and the swing arm section of both sides 6,16 usefulness connecting pins 9,12 are connected to an integral body, and the length of connecting pin is concordant with the bumper/spoiler overall appearance, and must not make axial motion; Swing arm section 6,16 and the connecting bore position on jackshaft section 8 are drawn close to the middle part as far as possible, so that the swing arm section stretch to jackshaft section 8 interior sections up and down and anterior by semi-surrounding therein, can only be that movement in a curve is inwardly done in the axle center with connecting pin 9,12, thereby play the effect of strengthening each linkage section level attitude stability.

Both sides swing arm section 8,16 is connected with push rod 5,18 by movable span set on it 15, connecting pin 7,13, and movable span 15 outwards expands to elongated hole, and effect is to be convenient to the swing arm section not hindered by the restriction of radius size.

Forward and backward bumper/spoiler jackshaft section 8,25 two ends designs has the jackshaft interlock hook 17 of hook solid, and jackshaft interlock hook 17 two ends are respectively to the cylindrical of inner close fitting connecting pin 7,13,23,28.The effect of jackshaft interlock hook 17 is when being collided in the bumper/spoiler front, jackshaft section 8 drives both wings swing arm section 6,16 simultaneously by connecting pin 7,9,11,12,13 and push rod 5,10,18 moves together, and when swing arm section 6 or swing arm section 16 are subjected to external force separately, the swing arm section that only is a stressed end drives cooresponding with it push rod action by connecting pin, and jackshaft section 8 and another swing arm section are then unaffected.Connecting pin 7,9,11,12,13 pin heads adopt only scurries the formula design and installs connecting pin locking plate 14 additional in the another port, to prevent the connecting pin end float misalignment.

The bumper/spoiler that segmentation assembles, its each section are held up by push rod 5,10,18 respectively, and extend and be assembled in the piston/cylinder 1, again by piston/cylinder 1 and vehicle chassis 21, i.e. and 19 fastening linking to each other of front support stand.

With reference to Fig. 1,2, the damper piston cylinder is made up of piston/cylinder 1, inboard wall of cylinder block sealing 2, piston cylinder lid 4, push rod plunger body 20, the critical valve 32 of plunger shaft bottom and the shock-proof spring 3 that is enclosed within on the push rod 15,10,18.The effect one of shock-proof spring 3 is to produce antagonistic force in order to bumper and absorbing shock when bumper/spoiler is subjected to clashing into, the 2nd, and push rod and single-bar bumper are resetted rapidly.The push rod shaft runs through piston/cylinder 1, and push rod and 20 designs of push rod plunger body are as a whole, reveals under pressure state in order to prevent the piston cylinder in-vivo medium, and push rod plunger body 20, push rod rear surface are precision-fit with inboard wall of cylinder block, and sealing member 2 sealings are arranged.The piston cylinder in-vivo medium can be gas or liquid.When push rod plunger body 20 promoted downwards in piston/cylinder 1, valve body was outwards washed open pressure is released by valve opening when critical valve 32 made the pressure value of reaching capacity of interior media or setting value, to prevent piston/cylinder 1 explosion.

Stroke between bumper/spoiler assembly and the vehicle chassis 21, promptly the setting of the key values such as unlatching limit of push rod length, piston/cylinder 1 and inboard wall of cylinder block size, shock-proof spring pressure and critical valve is controlled flexibly according to different automobile types.

1) with reference to Fig. 2, jackshaft section 25 is connected with swing arm section 22, the 29 usefulness connecting pins 26 of both sides, the plate of encirclement up and down of 25 pairs of swing arm sections of jackshaft section 22,29 extends on the vehicle chassis 21, and locating dowel pin 27 links to each other with bracket of rear mounting 31, jackshaft section buffering movable span 24 is an elongated hole, when the jackshaft section inwardly advances together with swing arm section 22,29 and each push rod are whole, can ensure the free movable stroke of jackshaft section 27.

The utility model principle of work is as follows:

A. the front bumper single cylinder cushions

When any swing arm section of front bumper is subjected to clashing into, as swing arm section 6 stressed pressing down, be fulcrum with the connecting pin that is connected on the jackshaft section 8, do circular swing motion to the vehicle body inboard, at this moment connecting pin 6 breaks away from jackshaft interlock hook 17, and jackshaft section 8 is actionless with swing arm section 16.Swing arm section 6 is that fulcrum promotion push rod 5 axially moves with connecting pin 7, advance in the piston/cylinder 1 on being fixed on vehicle chassis 21 and front frame 19, push rod plunger body 20 on the push rod 5 is with shock-proof spring 3 and medium extruding rearward together simultaneously, shock-proof spring 3 and medium produce common resistance, push rod 5 pushing speed are slowed down, force application force and antagonistic force to be cancelled out each other gradually, reach minimum degree to ensure influence to vehicle chassis 21.

If when being added in bumper/spoiler is that power value on the push rod 5 is when producing the antagonistic force value of common impedance greater than shock-proof spring 3 and medium, for preventing that piston/cylinder 1 from causing detonation owing to internal pressure is excessive, pressure during near the design limit value critical valve just can outwards be washed open, allow pressure release.The principle of work of swing arm section 10 is the same.

B. the front bumper multi-cylinder cushions

When being collided when the front bumper front or than large tracts of land, at first stressed position is a bumper/spoiler jackshaft section 8, when jackshaft section 8 stressed when body inner side is moved, except that 9,11,12 bonded assembly parts of drive connecting pin move simultaneously, the connecting pin 7 and 13 that is pinned by two ends jackshaft interlock hook 17 also drives institute's bonded assembly parts action synchronously, and promptly bumper/spoiler jackshaft section 8, swing arm section 6,16 promote push rod 5,10,18 actions synchronously.The segmentation bumper rail of this moment is to act on each push rod as a single-piece beaer, and each push rod then is assigned in the corresponding damper piston cylinder stressed.So the antagonistic force that each damper piston cylinder need be brought into play only is 1/3rd of external force that single-bar bumper receives, suffered external force is fully decomposed, and the bumper/spoiler multi-cylinder makes up the impact between impedance at double and absorption bumper/spoiler and the car body.

C. the rear bumper single cylinder cushions

When any swing arm section of rear bumper, when being subjected to clashing into as swing arm section 22, swing arm section 22 stressed pressing down are the center of circle with connecting pin 26, do circular swing motion to the vehicle body inboard, and connecting pin 23 breaks away from jackshaft interlock hook 17, jackshaft section 25 and swing arm section 29 transfixions.Swing arm section 22 is that fulcrum promotion push rod 33 axially moves with connecting pin 23 again at this moment, advance in the piston/cylinder 1 on being fixed on vehicle chassis 21 and after poppet 31, the push rod plunger body 20 that links to each other with push rod 33 rearward pushes shock-proof spring 3 and medium simultaneously.Under the pushing effect of push rod plunger body 20, shock-proof spring 3 and medium produce common resistance, and push rod 33 fltting speeds slow down, and force application force and antagonistic force to be cancelled out each other gradually, reach minimum degree to ensure the influence to vehicle chassis 21.

The principle of work of swing arm section 29 is the same.

D. the rear bumper multi-cylinder cushions

When being collided when the rear bumper front or than large tracts of land, at first stressed position is a bumper/spoiler jackshaft section 25, when bumper/spoiler jackshaft section 25 stressed when body inner side is moved, except that 26 bonded assembly swing arms of the connecting pin section 22,28 that drives and jackshaft section 25 links together is moved simultaneously, the connecting pin 23 and 28 that is pinned by jackshaft interlock hook 17 also drives 30,33 actions of institute's bonded assembly push rod synchronously, and promptly jackshaft section 25, swing arm section 22,28 promote push rod 30,33 actions synchronously.The segmentation bumper rail of this moment is to act on each push rod as a single-piece beaer, and each push rod then is assigned to respectively in the corresponding damper piston cylinder integral body is stressed.So, the antagonistic force that each damper piston cylinder need be brought into play only is 1/2nd of external force that single-bar bumper receives, suffered external force is fully decomposed by two damper piston cylinders, rear bumper multi-cylinder combination impedance and absorb vehicle and knocking into the back or moveing backward the impact between the bumper/spoiler and car body when colliding at double.

Claims

1, vehicle sectional type buffer bumper, the swing arm section (6) that it is characterized in that jackshaft section (8) and both sides, (16) form front bumper, push rod (5), (10), (18) respectively with jackshaft section (8), swing arm section (6), (16) movable span (15) is connected, push rod (5), (10), (18) other end difference overcoat shock-proof spring (3), and stretch into and be assembled in the piston/cylinder (1), piston/cylinder (1) and vehicle chassis (21), front support stand (19) is fastening to link to each other, push rod (5), (10), (18) respectively with piston/cylinder (1) in push rod plunger body (20) be processed as one, push rod plunger body (20), push rod (5), (10), (18) surface and piston/cylinder (1) inwall precision-fit, the swing arm section (22) of jackshaft section (25) and both sides, (29) form rear bumper, push rod (30), (33) other end difference overcoat shock-proof spring (3), and extend in the piston/cylinder (1), piston/cylinder (1) and vehicle chassis (21), bracket of rear mounting (31) is fastening to link to each other push rod (30), (33) respectively with piston/cylinder (1) in push rod plunger body (20) be processed as one.

2, vehicle sectional type buffer bumper according to claim 1, it is characterized in that the design of forward and backward bumper/spoiler jackshaft section (8), (25) two ends has the jackshaft interlock hook (17) of hook solid, jackshaft interlock hook (17) two ends are respectively to the cylindrical of inner close fitting connecting pin (7), (13), (23), (28).

3, vehicle sectional type buffer bumper according to claim 1 is characterized in that connecting pin (7), (9), (11), (12), (13) pin head adopt only to scurry the formula design and install connecting pin locking plate (14) in the another port additional.