CN208813140U - A kind of rear-end collision protective device - Google Patents

Abstract

A kind of rear-end collision protective device, including setting buffer gear and impact protector mechanism, buffer gear includes two metal tubes and two connecting rods for being fixed on automobile chassis two sides, two connecting rod one end are deep into two metal tubes by sliding block and spring, the other end stretches out metal tube and extends to the rear of the tailstock, and it is connect respectively by two upright bars with impact protector mechanism, impact protector mechanism includes a rubber blocks concordant with width of the carbody, and there are two vertical mounting holes for setting on the rubber blocks, rubber blocks are fixed on tailstock rear by nut after the two mounting holes by two rod ends, and rubber blocks and tailstock portion connect and are kept in contact or have gap.The utility model only has metal tube to be fixed on chassis, and the structure of rest part can be installed additional temporarily up when in use, and such structure will not influence the appearance of vehicle, and easy to assembly.

Description

A kind of rear-end collision protective device

Technical field

The utility model relates to arrive automobile related fields, specifically a kind of rear-end collision protective device.

Background technique

Traffic in recent years Frequent Accidents, rear-end collision are one of principal modes of traffic accident, when two motor vehicles are in When the state travelled in the same direction, front vehicle is had a responsibility for being kept at a distance from a safety according to speed and front truck, but in actual travel, Driver may because judging inaccurate, blindly confidence, dispersion attention, rain and fog weather, front truck failure reduction of speed etc. a variety of causes, It is inaccurate to the Distance Judgment of front and back vehicle, fore-aft vehicle all cannot timely and effectively be reminded by whistle and car light, with As for when rear-end collision occurs, making before and after automobile because collision deforms or leaves scratch.

For at present, the Anti-bumping protection measure of automobile is generally used bumper, and the presence of bumper can absorb gentle With foreign impacts power, protection vehicle body protection vehicle body and occupant safety.But for certain car owners, bumper is installed additional to love vehicle It will affect the whole vision and sense organ of love vehicle, therefore, the considerations of for aesthetic, and withouyt bumper, or only exist Headstock installs bumper additional, and the tailstock is often the point for being negligent of protection, this is resulted in when knocking into the back, and tailstock portion causes very big damage Wound.

Utility model content

The purpose of the utility model is to provide a kind of rear-end collision protective device, which can carry out group as needed Dress can give the tailstock to provide good security protection after assembling, and rear car touches wipings of the tailstock caused when preventing from knocking into the back Tailstock damage.

The utility model to realize the above-mentioned technical purpose used by technical solution are as follows: a kind of rear-end collision protective device, The tail portion of automobile is arranged in the device, the buffer gear including being arranged on automobile chassis and the impact protector positioned at automobile tail Mechanism, wherein the buffer gear includes being fixed on two metal tubes and two connections that automobile chassis two sides are symmetric Bar, two metal tubes are parallel with motor vehicle length direction, and by the closed at one end of near-car head, the other end is reached below the tailstock And be open, it is fixed with spring at this two metal closed frame tube ends, being fixed on the free end of spring can slide in metal tube Sliding block, and when spring in a free state, sliding block is located at the medium position of metal tube；One end of two connecting rods point It does not extend into two metal tubes, and resists sliding block, after the other end of two connecting rods stretches out metal tube and extends to the tailstock Side, and it is vertical with two upright bars respectively connect so that the top of two upright bars is located at tailstock rear, and between the tailstock between formation Gap；The impact protector mechanism includes a rubber blocks concordant with width of the carbody, and on the rubber blocks there are two settings Rubber blocks are fixed on the tailstock by nut after the two mounting holes by vertical mounting hole, two rod ends Rear, and rubber blocks and tailstock portion connect and are kept in contact or have gap.

A kind of preferred embodiment of the utility model is that the closed end of two metal tubes is fixed on automobile chassis and is equipped with Fixed plate I on, and metal tube close to opening end position fixed also by fixed plate II with automobile chassis.

Another preferred embodiment of the utility model is that the position of two metal tube closed ends is lower than the position of open end It sets, so that connecting rod be made to be not easy from wherein falling off.

Another preferred embodiment of the utility model is to be provided with to fix with connecting rod matching ends on the sliding block Threaded connection hole is provided on the side of sliding block and the side wall of metal tube and is connected to being fixed connecting rod and sliding block Pin hole, sliding block is fixed in metal tube by being inserted into fixed pin in the pin hole, so that connecting rod and sliding block are passed through spiral shell Line tightens connection.

Another preferred embodiment of the utility model is, the vertical mounting hole of two on the rubber blocks is by rubber block Body is divided into the isolated part between upright bar and the tailstock and the buffer portion except upright bar, wherein on buffer portion It is provided with several tabular buffer gaps parallel with width of the carbody direction, and the width of these buffer gaps perforation buffer portion Direction, and be uniformly distributed along the free end of buffer portion to the direction of upright bar.

A kind of further improvement scheme of preferred embodiment is to be provided on the isolated part close to vehicle on the utility model The cavity II of the cavity I of tail and close upright bar, the cavity I and cavity II penetrate through the width direction of isolated part, divide in it Not inserted with cystosepiment and PVC plastic flitch, and the top and bottom of cystosepiment and PVC plastic flitch hold out against cavity I and cavity respectively The two sidewalls of II top and bottom, cystosepiment and PVC plastic flitch have gap with the two sidewalls of cavity I and cavity II respectively.

Another preferred embodiment again of the utility model is that the side of the upright bar is provided with the card of facing tailstock extension Plate, the rubber blocks bottom are stuck on the snap-gauge.

The utility model compared with prior art, has the following beneficial effects:

1) the utility model by below tailstock chassis install two metal tubes, and be arranged inside spring drive cunning Block is then inserted into connecting rod in metal tube, and the other end of connecting rod extends to tailstock rear, and is equipped with rubber blocks conduct Impact protector mechanism, in this way knock into the back hit when, front vehicle can strike on rubber blocks, to cut down shock Power, meanwhile, rubber blocks can push the spring in connecting rod compressed metal pipe, impact force can also be reduced, in the protection tailstock While, significantly reduce the impact force generated when shock；

2) main body of the impact protector mechanism of the utility model is rubber blocks, and is protected to make it generate preferably to hit Shield effect, is classified as two parts, a part is the isolated part between upright bar and the tailstock, and another part is except upright bar Buffer portion, buffer portion is equipped with multiple buffer gaps, and buffer portion becomes the structure of grid by these buffer gaps, from And impact force can be cut down to the greatest extent；And there are two cavitys for tool in isolated part, and insert respectively in two cavitys Enter cystosepiment and PVC plastic flitch, rigidity support that the presence of PVC plastic flitch can be certain to rubber blocks, and cystosepiment is deposited In the impact force that can also consume a part, the cooperation of these structures realizes the reduction of impact force；

3) in the structure of the utility model, only metal tube is fixed on chassis, and the structure of rest part can Interim when in use to install additional up, such structure will not influence the appearance of vehicle.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the right view of Fig. 1；

Fig. 3 is the schematic diagram of buffer gear；

Appended drawing reference: 1, buffer gear, 101, metal tube, 102, spring, 103, sliding block, 104, pin hole, 105, fixed pin, 106, threaded connection hole, 2, connecting rod, 3, upright bar, 301, snap-gauge, 4, impact protector mechanism, 5, isolated part, 501, cavity II, 502, PVC plastic flitch, 503, cystosepiment, 504, cavity I, 6, buffer portion, 601, buffer gap, 7, nut, 8, fixed plate I, 9, fixed plate II.

Specific embodiment

The embodiment of the utility model is further elaborated and is illustrated combined with specific embodiments below.

As shown in Figure 1-3, a kind of rear-end collision protective device, which is arranged in the tail portion of automobile, including is arranged in vapour Buffer gear 1 on chassis and the impact protector mechanism 4 positioned at automobile tail, wherein the buffer gear 1 includes being fixed on Two metal tubes 101 and two connecting rods 2 that automobile chassis two sides are symmetric, two metal tubes 101 and automobile are long Degree direction is parallel, and by the closed at one end of near-car head, and the other end is reached below the tailstock and is open, in this two metal tubes 101 Inner sealing end is fixed with spring 102, and the sliding block 103 that can be slided in metal tube 101 is fixed on the free end of spring 102, and When spring 102 in a free state, sliding block 103 is located at the medium position of metal tube 101；One end of two connecting rods 2 It is respectively protruding into two metal tubes 101, and resists sliding block 103, the other end of two connecting rods 2 stretches out metal tube 101 and prolongs Extend to the rear of the tailstock, and it is vertical with two upright bars 3 respectively connect so that the top of two upright bars 3 is located at tailstock rear, and with Gap is formed between the tailstock；The impact protector mechanism 4 includes a rubber blocks concordant with width of the carbody, and in the rubber block There are two vertical mounting hole, two 3 tops of upright bar pass through nut 7 for rubber after passing through the two mounting holes for setting on body Blob of viscose body is fixed on tailstock rear, and rubber blocks and tailstock portion connect and be kept in contact or have gap.

The above are the basic embodiments of the utility model, further can be improved, optimized and limited on the basis of above It is fixed:

Such as, the closed end of two metal tubes 101 is fixed in the fixed plate I 8 that automobile chassis is equipped with, and metal tube 101 fix also by fixed plate II 9 with automobile chassis close to opening end position；Certainly, two metal tubes 101 can also be welded directly It connects on automobile chassis；

For another example, the position of two metal tubes, 101 closed end is lower than the position of open end, so that connecting rod 2 be made not allow Easily from wherein falling off；

For another example, the threaded connection hole 106 fixed with 2 matching ends of connecting rod is provided on the sliding block 103, thus will Connecting rod 2 is fixed with sliding block 103, is provided with the pin hole being connected on the side of sliding block 103 and the side wall of metal tube 101 104, sliding block 103 is fixed in metal tube 101 by being inserted into fixed pin 105 in the pin hole 104, thus by connecting rod 2 with Sliding block 103 tightens connection by screw thread；

Again for another example, rubber blocks are divided into upright bar 3 and the tailstock by two vertical mounting holes on the rubber blocks Between isolated part 5 and the buffer portion 6 except upright bar 3, wherein several and car body is provided on buffer portion 6 The parallel tabular buffer gap 601 of width direction, and the width direction of these buffer gaps 601 perforation buffer portion 6, and edge The free end of buffer portion 6 is uniformly distributed to the direction of upright bar 3；The height of buffer gap 601 is the 80% of 6 height of buffer portion, To make the upper and lower ends of buffer gap 601 form connector, rest part is gap, actually forms the knot of similar grid Structure；

A kind of further improvement of upper scheme is to be provided with the cavity I 504 of the close tailstock on the isolated part 5 and lean on The cavity II 501 of nearly upright bar 3, the cavity I 504 and cavity II 501 penetrate through the width direction of isolated part 5, in it respectively Inserted with cystosepiment 503 and PVC plastic flitch 502, and the top and bottom of cystosepiment 503 and PVC plastic flitch 502 hold out against sky respectively The top and bottom of chamber I 504 and cavity II 501, cystosepiment 503 and PVC plastic flitch 502 are capable of providing certain rigidity support, Meanwhile fragmentation can also absorb a large amount of impact energy after being hit；The two sidewalls of cystosepiment 503 and PVC plastic flitch 502 difference There is gap with the two sidewalls of cavity I 504 and cavity II 501, these gaps can also provide buffer function.

Finally, the side of the upright bar 3 is provided with the snap-gauge 301 of facing tailstock extension, the rubber blocks bottom is stuck in On the snap-gauge 301.

Claims (4)

1. the tail portion of automobile is arranged in a kind of rear-end collision protective device, the device, it is characterised in that: including being arranged in automobile bottom Buffer gear (1) on disk and the impact protector mechanism (4) positioned at automobile tail, wherein the buffer gear (1) includes fixing In two metal tube (101) He Lianggen connecting rods (2) that automobile chassis two sides are symmetric, two metal tubes (101) It is parallel with motor vehicle length direction, and by the closed at one end of near-car head, the other end is reached below the tailstock and is open, in this two gold Belong to pipe (101) inner sealing end to be fixed with spring (102), being fixed on the free end of spring (102) can slide in metal tube (101) Dynamic sliding block (103), and work as spring (102) in a free state, sliding block (103) is located at the medium position of metal tube (101)； One end of two connecting rods (2) is respectively protruding into two metal tubes (101), and resists sliding block (103), two connecting rods (2) the other end stretches out metal tube (101) and extends to the rear of the tailstock, and it is vertical with two upright bars (3) respectively connect so that The top of two upright bars (3) is located at tailstock rear, and gap is formed between the tailstock；The impact protector mechanism (4) includes one The rubber blocks concordant with width of the carbody, and there are two vertical mounting hole, described two are vertical for setting on the rubber blocks Rubber blocks are fixed on tailstock rear, and rubber blocks and vehicle by nut (7) after the two mounting holes by bar (3) top Tail portion, which connects, is kept in contact or has gap；

The threaded connection hole (106) fixed with connecting rod (2) matching ends is provided on the sliding block (103), thus will even Extension bar (2) is fixed with sliding block (103), is provided on the side of sliding block (103) and the side wall of metal tube (101) and to be connected to Sliding block (103) is fixed in metal tube (101) by pin hole (104) by being inserted into fixed pin (105) in the pin hole (104), from And connecting rod (2) is tightened with sliding block (103) by screw thread and is connect；

Rubber blocks are divided into the isolation between upright bar (3) and the tailstock by two vertical mounting holes on the rubber blocks Partially (5) and the buffer portion (6) being located at except upright bar (3), wherein be provided on buffer portion (6) several wide with car body The parallel tabular buffer gap (601) in direction, and the width direction of these buffer gaps (601) perforation buffer portion (6) are spent, And it is uniformly distributed along the free end of buffer portion (6) to the direction of upright bar (3)；

The cavity I (504) close to the tailstock and the cavity II (501) close to upright bar (3), institute are provided on the isolated part (5) The width direction for stating cavity I (504) and cavity II (501) perforation isolated part (5), respectively inserted with cystosepiment in it (503) and PVC plastic flitch (502), and the top and bottom of cystosepiment (503) and PVC plastic flitch (502) hold out against cavity I respectively (504) and the top and bottom of cavity II (501), the two sidewalls of cystosepiment (503) and PVC plastic flitch (502) respectively with cavity I (504) and the two sidewalls of cavity II (501) have gap.

2. a kind of rear-end collision protective device according to claim 1, it is characterised in that: two metal tubes (101) Closed end be fixed in the fixed plate I (8) that automobile chassis is equipped with, and metal tube (101) close to opening end position also by Fixed plate II (9) is fixed with automobile chassis.

3. a kind of rear-end collision protective device according to claim 1 or 2, it is characterised in that: two metal tubes (101) position of closed end is lower than the position of open end, so that connecting rod (2) be made to be not easy from wherein falling off.

4. a kind of rear-end collision protective device according to claim 1, it is characterised in that: the side of the upright bar (3) is set It is equipped with the snap-gauge (301) of facing tailstock extension, the rubber blocks bottom is stuck on the snap-gauge (301).