CN104827995B

CN104827995B - Collision buffering device for motor vehicle

Info

Publication number: CN104827995B
Application number: CN201510267612.1A
Authority: CN
Inventors: 白峻光; 白岩松; 白凇会; 刘艳萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2017-01-25
Anticipated expiration: 2035-05-22
Also published as: CN104827995A

Abstract

A collision buffering device for a motor vehicle is used for reducing vehicle damage in collision accidents. The collision buffering device is provided with a buffering mechanism and a collision beam, the buffering mechanism is provided with a buffer, a damping cover and a groove-shaped frame. A cylinder body of the buffer is arranged in the damping cover; second buffering space is formed between the bottom face of the cylinder body and the blind end of the damping cover, wherein the bottom face of the cylinder body faces the blind end of the damping cover; a groove opening of the groove-shaped frame is fixedly connected with a groove cover, the damping cover is arranged in the groove-shaped frame; second buffering space is formed between a plug of the groove-shaped frame and the blind end of the damping cover, wherein the plug of the groove-shaped frame faces the blind end of the damping cover; a plurality of inner rib grooves are formed in the inner wall of the damping cover, a plurality of outer rib grooves are formed in the outer wall of the damping cover, a plurality of inner convex ribs in movable clamping connection with the outer rib grooves of the damping cover respectively are arranged on the inner wall of the groove-shaped frame, and a plurality of outer convex ribs in movable clamping connection with the inner rib grooves of the damping cover respectively are arranged on the outer wall of the cylinder body of damper; the collision beam is fixedly connected with the telescopic rod end of the buffer; the collision beam is formed by sequential fixed connection of a metal plate layer, a plastic plate layer and foam panels; the groove width of the inner rib grooves or outer rib grooves of the damping cover is sequentially increased.

Description

Collision of motor-driven vehicles buffer unit

Technical field

The present invention provides a kind of collision of motor-driven vehicles buffer unit.

Background technology

When motor vehicles collide, prior art is to absorb most shock by the crumple of Metal Sheets for Body-manufacturing mostly Can, for protecting the personal safety of motor-driven in-car member, shortcoming is: in collision accident, car body deformation is big, vehicle body badly broken, Rehabilitation expense is high, even results in car load and scraps, after especially headstock clashes into, is easily damaged electromotor and its adnexa, can make Become larger property loss；So, the outer bumper of part motor vehicle addition is used for reducing car and damages, and shortcoming destroys vehicle body Contour structures, also add the overall size of vehicle body, and, the outer bumper meeting in people's car accident being mostly made up of metal tube Increase the injury to pedestrian.

Content of the invention

It is an object of the invention to provide a kind of collision of motor-driven vehicles buffer unit, the original profile of motor vehicles after installation, can be kept, Reduce the damage to car body for the shock accident.

The technical scheme is that collision of motor-driven vehicles buffer unit it is characterised in that: there is buffer gear and collision Beam, buffer gear has buffer, damping sleeve, groove-shaped frame；The cylinder body of buffer is placed in damping sleeve, and one end of damping sleeve is blind End, the bottom surface of cylinder body is relative with the cecum of damping sleeve, is provided with the first cushion space between the bottom surface of cylinder body and the cecum of damping sleeve； The notch of groove-shaped frame is fixed with groove lid, and damping is placed in groove-shaped frame, and groove-shaped frame one end is provided with block up relative with damping sleeve cecum Head, is provided with the second cushion space between plug and the cecum of damping sleeve；The inwall of damping sleeve is provided with muscle groove, outer wall in several It is provided with several outer muscle grooves, the inwall of groove-shaped frame is provided with several convexes with the outer muscle groove activity clamping of damping sleeve respectively Muscle, the outer wall of cylinder block of buffer is provided with several outer convex ribs with muscle groove activity clamping in damping sleeve respectively；Described collision Flexible rod end is connected beam with buffer.

Described impact beam is connected successively by sheet-metal layers, plastic plies and foam sheet and constitutes.

The groove width of each interior muscle groove of described damping sleeve or each outer muscle groove is broadening successively.

It is provided with foaming layer, between damping sleeve inwall and the outer wall of cylinder block of buffer between damping sleeve outer wall and groove-shaped frame inwall It is provided with foaming layer.

The invention has the advantage that impact beam is placed in inside bumper when installing, the groove-shaped frame in buffer gear and car body master Beam is connected, and device is located at the inside of car body profile, can keep the original contour structures of motor vehicles and size；When collision occurs in this skill When in the effective buffer domain of art device, buffer absorbs most impact energy first, carries out first and buffers again, when clash into When spot speed is more than the response speed of buffer expansion link motion, each outer convex rib on buffer cylinder body is affected to overcome by external force In damping sleeve, the restriction of muscle groove is deviate from from interior muscle groove, produces certain frictional resistance and damping sleeve between, carries out second and buffers again, And carry out displacement in damping sleeve along Impact direction；Still can not delay after outer convex ribs all on buffer cylinder body are departed from interior muscle groove During solution impact energy, after the bottom surface of buffer cylinder body is contacted with damping sleeve cecum or whole outer convex ribs makes to delay when interior muscle groove is deviate from When rushing frictional force increase between the cylinder body of device and damping sleeve, the cylinder body of buffer can drive damping sleeve together to move along Impact direction Dynamic, now, the outer muscle groove on damping sleeve is separated in the same manner with groove-shaped frame inner convex rib, makes damping sleeve pass through each outer muscle groove and groove-shaped frame Produce frictional resistance between each inner convex rib, and carry out displacement along Impact direction, carry out triple buffer, by the knot of triple buffer The impact energy that structure absorption should be undertaken by car body, can reduce the damage to car body for the shock accident while protecting vehicle passenger Bad, reduce property loss；The instantaneous impact of collision initial stage generation can be absorbed by outer soft to interior hard composite bed impact beam, be slow The reaction rushing device is raced against time, and foam sheet therein can play certain buffer protection in pedestrian-vehicle collision accident to human body Effect；The inside and outside muscle groove of incremented by successively or groove width of successively decreasing can make corresponding inside and outside convex tendon staged abjection separate, and makes to delay The resistance of punching is gradually increased, and can make the process of buffering steadily, improve the response speed of buffering；Expanded material can be filled outside damping sleeve Gap and damping sleeve inwall and the outer wall of cylinder block of buffer between wall and groove-shaped frame, makes part be firmly combined with, it is to avoid Because above-mentioned part looseness produces noise or each part weares and teares during driving, the embrittlement of expanded material does not interfere with above-mentioned part Relative motion, and using expanded material compressibility, increase device cushion effect.

Brief description

Fig. 1 is the structural representation of collision of motor-driven vehicles buffer unit of the present invention.

Fig. 2 is the generalized section in Fig. 1 along a-a.

Fig. 3 is the use state figure one of collision of motor-driven vehicles buffer unit of the present invention.

Fig. 4 is the use state figure two of collision of motor-driven vehicles buffer unit of the present invention.

In figure 1 groove-shaped frame, 2 damping sleeves, the cylinder body of 3 buffers, 4 foaming layers, 5 groove lids, 6 impact beams, 7 sheet-metal layers, 8 mould Flitch layer, 9 foam sheet, the flexible rod end of 10 buffers, 11 inner convex ribs, 12 outer muscle grooves, muscle groove in 13,14 outer convex ribs, 15 One cushion space, 16 cecums, 17 second cushion spaces, 18 plugs, 19 buffer gears.

Specific embodiment

Collision of motor-driven vehicles buffer unit, has buffer gear 19 and impact beam 6, and buffer gear has buffer, damping sleeve 2nd, groove-shaped frame 1；Described buffer is pneumatic buffer or hydraulic bjuffer, and the cylinder body 3 of buffer is placed in damping sleeve, damping One end of set is cecum 16, and the bottom surface of cylinder body is relative with the cecum of damping sleeve, sets between the bottom surface of cylinder body and the cecum of damping sleeve There is the first cushion space 15；Groove lid 5 is stamped on groove-shaped frame, groove lid is connected with groove-shaped frame, damping be placed on groove-shaped frame and groove lid it Between, groove-shaped frame one end is provided with the plug 18 relative with damping sleeve cecum, is provided with the second buffering between plug and the cecum of damping sleeve Space 17；The inwall of damping sleeve is provided with muscle groove 13 in several, outer wall is provided with several outer muscle grooves 12, the inwall of groove-shaped frame It is provided with several inner convex ribs 11 with the outer muscle groove activity clamping of damping sleeve respectively, the outer wall of cylinder block of buffer is provided with several Outer convex rib 14 with muscle groove activity clamping in damping sleeve respectively；Flexible rod end 10 is connected described impact beam with buffer；Described Buffer gear can be multiple, in each buffer gear the flexible rod end of buffer respectively with described impact beam be connected；Described Buffer gear can be multiple, in each buffer gear the flexible rod end of buffer respectively with described impact beam be connected；Described Impact beam be connected successively by the sheet-metal layers 7 being connected with the flexible rod end of buffer, plastic plies 8 and foam sheet 9 and constitute； The groove width of each interior muscle groove of described damping sleeve or each outer muscle groove is broadening successively；It is provided between damping sleeve outer wall and groove-shaped frame inwall and send out Alveolar layer 4, is provided with foaming layer 4 between damping sleeve inwall and the outer wall of cylinder block of buffer；During installation, impact beam is placed in before motor vehicles The inboard of rear bumper or replacement front/rear collision bumper, then the groove-shaped frame in each buffer gear is connected i.e. with the girder of car body respectively Can, method of attachment can be connected using bolt or welding is connected；The preferred plastic material of described damping sleeve, can produce after being preferably subject to external force The plastic material of raw certain crimp, for example: the pa6 for 70g33l for the pa66 product and the trade mark for gf30 for the Dupont trade mark Product, the German BASF trade mark is the pbt class product of epr27 and the trade mark is the pom class product of 1013b, and the basic trade mark of husky uncle is The pom class product of f20 02, the Bayer Bitterfeld GmbH trade mark is the pc class product of yh800, and table mountain god's horse trade mark is 940 pet class product Product, the Ba Ling petrochemical industry trade mark is the ppa class product of 70g13l, and the Taiwan Changchun trade mark is the poe class product of f30 03, and Taiwan collection is contained The trade mark is the ppa product of 70g13l, and the Shijiazhuang village edge trade mark is the pa46 product of 1300s, and the Ba Ling petrochemical industry trade mark is epr27's Pa12 product, the sub- trade mark in Shanghai sieve ground is the pa11 product of 1013nw8, and damping sleeve may also be employed the harder elastomeric material of quality Or softer metal material；The sheet-metal layers of described impact beam are high strength steel flaggy or aluminium alloy type flaggy or steel alloy flaggy Deng, described plastic plate using and plastic material identical material used by damping sleeve, described foam sheet adds fire retardant Polystyrene foam plate layer or phenol formaldehyde foam flaggy or polyurethane foam flaggy；Described foaming layer refers to the flame-retardant expanded layer of ureaformaldehyde Or polyurethane rigid foam plastic layer or the flame-retardant expanded layer of polystyrene etc.；Described pneumatic buffer or hydraulic bjuffer are city Sell commodity, the bar of customizable expansion link is long as needed, the convex tendon on buffer cylinder body casting when with cylinder body cast solid or Be fixed with one with welding after cylinder body partial installation, during using split welding manner, the cross section of described inside and outside convex tendon be solid or Semicircle hollow, the advantage of semicircle hollow section is to contract after extruding flat, is easy to convex tendon and deviates from muscle groove.

Claims

1. collision of motor-driven vehicles buffer unit it is characterised in that: there is buffer gear and impact beam, buffer gear have buffer, Damping sleeve, groove-shaped frame；The cylinder body of buffer is placed in damping sleeve, and one end of damping sleeve is cecum, the bottom surface of cylinder body and damping sleeve Cecum relatively, be provided with the first cushion space between the bottom surface of cylinder body and the cecum of damping sleeve；The notch of groove-shaped frame is fixed with groove Lid, damping is placed in groove-shaped frame, and groove-shaped frame one end is provided with the plug relative with damping sleeve cecum, the cecum of plug and damping sleeve Between be provided with the second cushion space；The inwall of damping sleeve is provided with muscle groove in several, outer wall is provided with several outer muscle grooves, groove The inwall of shape frame is provided with several inner convex ribs with the outer muscle groove activity clamping of damping sleeve respectively, and the outer wall of cylinder block of buffer sets There are several outer convex ribs with muscle groove activity clamping in damping sleeve respectively；Flexible rod end is connected described impact beam with buffer.

2. collision of motor-driven vehicles buffer unit according to claim 1 it is characterised in that: described impact beam is by metallic plate Layer, plastic plies and foam sheet are connected successively and constitute.

3. collision of motor-driven vehicles buffer unit according to claim 1 it is characterised in that: each interior muscle groove of described damping sleeve or The groove width of each outer muscle groove is broadening successively.

4. the collision of motor-driven vehicles buffer unit according to claim 1 or 2 or 3 it is characterised in that: damping sleeve outer wall and flute profile It is provided with foaming layer between frame inwall, between damping sleeve inwall and the outer wall of cylinder block of buffer, be provided with foaming layer.