Automobile rear side impact resistant structure

Abstract

The present application belongs to the field of anti-collision of automobile, especially relates to a rear side anti-collision structure of automobile, which comprises a steel plate, a rear anti-collision beam and a trunk cover, wherein the automobile body is provided with a structure for buffering the rear anti-collision beam when the rear anti-collision beam is subjected to a violent impact; the trunk cover is installed on the trunk through two arc rods, and the trunk cover and the bottom of the trunk opening are provided with a lock structure which is quickly opened when the rear anti-collision beam is subjected to an impact. The steel plate is quickly moved from a horizontal state to an inclined state under the action of the rear anti-collision beam subjected to a violent impact and the guidance of the guide groove on the inner wall of the trunk, so as to form complete shielding and protection for the rear seat, and guide the foreign matters moving from the rear to the rear seat in the trunk upwards, thereby avoiding that the passengers on the rear seat are caused fatal puncture by the foreign matters moving from the rear to the front, and protecting the passengers on the rear seat from being hurt.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of anti-collision structure of automobile, in particular to a kind of automobile rear side anti-collision structure. BACKGROUND

[0002] With more and more vehicles, the accidents caused by rear-end collision of vehicles are also increasing, when the vehicle is rear-ended, the rod-shaped object in the rear seat or trunk will move forward due to inertia and form a fatal puncture to the rear seat, the existing technology is to set a steel plate in the rear seat to block the rod-shaped foreign matter from the rear to the rear seat. The steel plate is too thin to effectively play a role, and the steel plate is too thick to increase the weight of the rear seat and damage the hinge between the rear seat and the chassis.

[0003] If the steel plate is set between the rear seat and the trunk instead of embedded in the rear seat to avoid the increase of the rear seat, it will affect the rear seat to be laid back to put larger objects, so that this steel plate arrangement does not have practicality.

[0004] The present application designs a kind of automobile rear side anti-collision structure to solve the above problems. SUMMARY

[0005] To solve the defects in the prior art, the present application discloses a kind of automobile rear side anti-collision structure, which is realized by the following technical scheme.

[0006] A kind of automobile rear side anti-collision structure, it includes steel plate, rear anti-collision beam, box cover, wherein the vehicle body has the structure that forms the buffer to the rear anti-collision beam when the rear anti-collision beam is subjected to violent impact;The lock structure that is quickly opened when the rear anti-collision beam is subjected to impact is provided between the box cover installed on the trunk through two arc rods and the bottom of the trunk opening;The bottom of the trunk is provided with a steel plate that is quickly moved from a horizontal state to form complete protection to the rear seat and can guide the foreign matter moving from the rear to the rear seat upward when the rear anti-collision beam moves due to impact.

[0007] As a further improvement of the present technology, two sliding grooves B are provided at the middle position of the trunk opening, two clamping hooks in the sliding grooves B slide towards or away from each other in the width direction of the vehicle, and the clamping hooks are in transmission connection with the rack B in the rear sliding groove A in the trunk by sliding horizontally along the length direction of the vehicle, and the clamping hooks are matched with the latch module on the box cover;The rack B matched with the rear end of the steel plate is nested with a reset spring for resetting the rack B.

[0008] As a further improvement of the present technology, the two clamping hooks are each provided with a rack A, the two racks A are engaged with a gear A installed in the vehicle body, and a gear B installed on the shaft of the gear A is engaged with the rack B.

[0009] As a further improvement of the present technology, two guide sleeves are symmetrically installed on the rear anti-collision beam, and the two guide sleeves are respectively nested on two guide rods of the vehicle body; the guide rod and the corresponding guide sleeve have a structure that fixes the relative position of the two when the rear anti-collision beam is not impacted, and releases the fixing of the relative position of the two and effectively buffers the rear anti-collision beam when the rear anti-collision beam is subjected to a violent impact.

[0010] As a further improvement of the present technology, two pairs of symmetric round pins are provided on both sides of the guide rod, and each pair of round pins is inserted into two round grooves on the corresponding side of the guide sleeve and cooperates with the horizontal sliding groove C communicating the two round grooves.

[0011] As a further improvement of the present technology, two pairs of symmetric round pins are provided on both sides of the guide rod, and each pair of round pins is inserted into two round grooves on the corresponding side of the guide sleeve and cooperates with the horizontal sliding groove C communicating the two round grooves.

[0012] Compared with the traditional anti-collision structure of the vehicle, the rear anti-collision beam in the present application will overcome the cooperation of the round pins on the guide rod and the round grooves on the corresponding guide sleeve to produce a large amplitude of horizontal movement when it is subjected to a violent rear-end impact. The cooperation of the round pins on the guide rod and the round grooves on the guide sleeve and the sliding groove C communicating the round grooves can effectively buffer the violent impact on the rear anti-collision beam, so that the rear anti-collision beam will not form a serious deformation under the action of the impact.

[0013] The steel plate will be quickly moved from a horizontal state to an inclined state under the action of the rear anti-collision beam subjected to a violent impact and under the guidance of the guide grooves on the inner wall of the trunk, forming complete shielding protection for the rear seat and guiding the foreign matter moving from the rear to the rear seat in the trunk upward, avoiding the passengers on the rear seat being pierced by the foreign matter moving from the rear to the front, and protecting the passengers on the rear seat from being injured.

[0014] The present application has a simple structure and good use effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a cross-sectional view of the present application.

[0016] Figure 2 is a cross-sectional view of the cooperation of the snap ring and the two hooks on the vehicle lock module.

[0017] Figure 3 is a cross-sectional view of the cooperation of the snap ring and the two hooks on the vehicle lock module and the cooperation of the steel plate and the rack B.

[0018] Figure 4 is a cross-sectional view of the trunk.

[0019] Figure 5Is the steel plate, connecting rod, rear bumper beam and guide sleeve cooperation schematic diagram.

[0020] Figure 6 Is the guide sleeve and guide rod on the round pin cooperation profile schematic diagram.

[0021] Figure 7 Is the hook, rack A, gear A, gear B and rack B cooperation schematic diagram.

[0022] Figure label name: 1, rear seat; 2, trunk; 3, sliding slot A; 4, sliding slot B; 5, guide slot; 6, swing groove; 7, steel plate; 8, roller; 9, connecting rod; 10, rear bumper beam; 11, guide sleeve; 12, sliding slot C; 13, round groove; 14, guide rod; 15, round pin; 16, arc rod; 17, cover; 18, car lock module; 19, snap ring; 20, hook; 21, rack A; 22, gear A; 23, gear B; 24, rack B; 25, return spring; 26, spring ring. DETAILED DESCRIPTION

[0023] The drawings are all schematic diagrams of the implementation of the present application, in order to facilitate understanding of the structure and operation principle. The specific product structure and scale size can be determined according to the use environment combined with conventional technology.

[0024] As shown in Figure 1 , it includes steel plate 7, rear bumper beam 10, cover 17, wherein as shown in Figure 1 , 6 , the vehicle body has a structure that buffers the rear bumper beam 10 when the rear bumper beam 10 is subjected to a violent impact; as shown in Figure 1 , 2 , the cover 17 installed on the trunk 2 through two arc rods 16 has a lock structure between the cover 17 and the open bottom of the trunk 2 that quickly opens when the rear bumper beam 10 is subjected to an impact; the bottom inside the trunk 2 is installed with a steel plate 7 that quickly moves from a horizontal state to completely protect the rear seat 1 and can guide foreign matter moving from behind to the rear seat 1 upwards when the rear bumper beam 10 moves due to an impact.

[0025] As shown in Figure 2 , 3 , 4, the trunk 2 has two sliding slots B 4 at the middle position of the opening, two sliding slots B 4 slide towards or away from each other in the width direction of the car, and two hooks 20 are fitted with the snap ring 19 of the car lock module 18 on the cover 17 and are transmission connected with the rack B 24 sliding horizontally in the rear sliding slot A 3 inside the trunk 2; the rack B 24 fitted with the rear end of the steel plate 7 is nested with a return spring 25 that returns it.

[0026] As shown in Figure 2 , 3As shown in Figure 7, each of the two hooks 20 is equipped with a rack A21, and the two racks A21 mesh with the gear A22 installed in the vehicle body. The gear B23 installed on the shaft where the gear A22 is located meshes with the rack B24.

[0027] like Figure 1 , 5 As shown in Figure 6, two guide sleeves 11 are symmetrically installed on the rear anti-collision beam 10, and the two guide sleeves 11 are respectively nested on the two guide rods 14 of the vehicle body; the guide rods 14 and the corresponding guide sleeves 11 have a structure that fixes the relative position of the two when the rear anti-collision beam 10 is not impacted, and releases the fixation of the relative position of the two when the rear anti-collision beam 10 is subjected to a violent impact, thereby effectively buffering the rear anti-collision beam 10.

[0028] like Figure 5 , 6 As shown, the guide rod 14 has two pairs of symmetrical round pins 15 on both sides. Each pair of round pins 15 is inserted into two round grooves 13 on the corresponding side of the guide sleeve 11 and cooperates with the horizontal sliding groove C12 that connects the two round grooves 13.

[0029] like Figure 1 , 4 As shown in Figure 5, two pairs of rollers 8 are symmetrically installed on both sides of the steel plate 7; the two rollers 8 closer to the rear of the car roll in the horizontal part of the two guide grooves 5 on the inner side wall of the trunk 2, and the two rollers 8 farther away from the rear of the car roll in the inclined part of the two guide grooves 5 on the inner side wall of the trunk 2; both sides of the steel plate 7 are hinged to the rear anti-collision system by the connecting rods 9 swinging in the swing grooves 6 at the bottom of the trunk 2.

[0030] like Figure 3 As shown, the return spring 25 is a compression spring; one end of the return spring 25 is connected to the inner wall of the annular groove of the inner wall of the slide A3, and the other end is connected to the compression spring ring 26 installed on the rack B24.

[0031] The working process of the present invention is as follows: In the initial state, the trunk lid 17 is closed to the trunk 2, the retaining ring 19 and the two hooks 20 on the lower end of the car lock module 18 of the trunk lid 17 are in a locked hinge state, the steel plate 7 is placed flat at the bottom of the trunk 2 and the rear end of the steel plate 7 abuts against the rack B24, the return spring 25 is in a compressed state, and the round pins 15 on the guide rod 14 are all located in the corresponding round grooves 13 on the corresponding side of the guide sleeve 11.

[0032] When the car is subjected to a slight rear-end collision, the rear crash beam 10 is prevented from moving due to the cooperation of the upper round groove 13 of the guide sleeve 11 and the round pin 15 of the guide rod 14, and the rear crash beam 10 only produces a small degree of recoverable elastic deformation, so the steel plate 7 remains in its initial state, the lock structure between the trunk cover 17 and the vehicle body is not triggered to open, and the items in the trunk 2 do not produce a large amplitude motion due to the slight rear-end collision of the vehicle body and do not form a harmful effect on the rear seat 1.

[0033] When the car is subjected to a severe rear-end collision, the round pins 15 of the two guide rods 14 break through the restriction of the round grooves 13 of the guide sleeves 11 and enter the corresponding sliding grooves C12 by deforming the side walls of the round grooves 13 of the guide sleeves 11, so that the rear crash beam 10 can withstand a larger impact force under the rear-end collision by producing movement to reduce its deformation damage.

[0034] With the movement of the rear crash beam 10 under the rear-end collision, the rear crash beam 10 drives the steel plate 7 to move along the guide groove 5 through the two connecting rods 9, the two rear rollers 8 on the steel plate 7 horizontally roll in the horizontal part of the guide groove 5, and the two front rollers 8 roll upward in the inclined part of the guide groove 5, so that the steel plate 7 is finally moved from the horizontal state to the inclined state to form complete shielding protection for the rear seat 1. At the same time of the movement of the steel plate 7, the steel plate 7 releases the pressure on the rack B24, the rack B24 slides out of the sliding groove A3 under the action of the return spring 25, and the rack B24 drives the two hooks 20 to produce opposite movement and unlock the locked state of the clasp ring 19 and the two hooks 20 on the car lock module 18 through the gear B23, the gear A22, and the two racks A21, so that the trunk cover 17 is automatically and quickly opened.

[0035] The trunk cover 17 is first quickly opened, and the steel plate 7 is moved from the horizontal state to the inclined state to form complete shielding protection for the rear seat 1 in the process of the quick opening of the trunk cover 17, and at the same time, the moving steel plate 7 pushes part of the items in the trunk 2 out of the opened trunk 2 to reduce the impact of the items in the trunk 2 on the steel plate 7 and the interference of the items in the trunk 2 with the movement of the steel plate 7.

[0036] After the steel plate 7 is quickly moved from the horizontal state to the inclined state to form complete shielding protection for the rear seat 1, the steel plate 7 can form complete shielding protection for the rear seat 1 when the car is subjected to a severe rear-end collision, so as to avoid the fast movement of foreign matters in the trunk 2 or on the rear car from rear to front to form a fatal puncture to the passengers on the rear seat 1, and protect the passengers on the rear seat 1 from being injured.

[0037] In summary, the beneficial effects of the present application are: the rear crash beam 10 in the application will overcome the cooperation of the round pin 15 on the guide rod 14 and the corresponding round groove 13 on the guide sleeve 11 to produce a large amplitude of horizontal movement when it is subjected to a violent rear-end collision, and the cooperation of the round pin 15 on the guide rod 14 and the round groove 13 on the guide sleeve 11 and the sliding groove C12 connected with the round groove 13 can effectively buffer the violent impact on the rear crash beam 10, so that the rear crash beam 10 will not form a serious deformation under the action of the impact.

[0038] The steel plate 7 will be quickly moved from the horizontal state to the inclined state under the action of the rear crash beam 10 subjected to a violent impact and under the guidance of the guide groove 5 in the inner wall of the trunk 2, forming complete shielding protection for the rear seat 1 and guiding the foreign matter moving from the rear to the rear seat 1 in the trunk 2 upward, avoiding the passengers on the rear seat 1 being pierced by the foreign matter moving from the rear to the front, and protecting the passengers on the rear seat 1 from being injured.

Claims

1. A rear-side impact-resistant structure for automobiles, characterized in that: It includes steel plates, a rear bumper beam, and a trunk lid. The vehicle body has a structure that cushions the rear bumper beam in the event of a severe impact. The trunk lid, mounted on two arc rods, has a locking mechanism between it and the bottom of the trunk opening that allows for quick opening upon impact with the rear bumper beam. The bottom of the trunk contains a steel plate that, when the rear bumper beam moves due to an impact, quickly moves from a horizontal position to provide complete protection for the rear seats and guides any foreign objects moving from the rear towards the rear seats upwards. The trunk opening has two sliding grooves B at its center. Within these grooves B, two hooks slide opposite each other along the width of the vehicle. These hooks engage with the locking mechanism on the trunk lid and are connected to a rack B that slides horizontally along the length of the vehicle in the rear sliding groove A within the trunk. A return spring is nested on the rack B, which engages with the rear end of the steel plate, for resetting its position. Both hooks are equipped with racks A, which mesh with gears A installed inside the vehicle body. Gears B, which are mounted on the shaft of gears A, mesh with racks B. Two pairs of rollers are symmetrically installed on both sides of the steel plate; the two rollers closer to the rear of the car roll in the horizontal part of the two guide grooves on the inner side wall of the trunk, and the two rollers farther away from the rear of the car roll in the inclined part of the two guide grooves on the inner side wall of the trunk; both sides of the steel plate are hinged to the rear anti-collision beam through connecting rods that swing in the swing groove at the bottom of the trunk. As the rear bumper beam moves during a rear-end collision, it drives a steel plate along a guide groove via two connecting rods. Two rollers on the rear side of the steel plate roll horizontally within the horizontal section of the guide groove, while two rollers on the front side roll upwards within the inclined section of the guide groove. This causes the steel plate to move from a horizontal state to an inclined state that completely shields and protects the rear seat. Simultaneously, the steel plate releases its pressure on rack B, which slides outwards from groove A under the action of a return spring. Through gears B, A, and the two racks A, rack B drives two hooks to move in opposite directions, unlocking the locking mechanism between the locking ring and the two hooks on the vehicle lock module. The trunk lid then opens automatically and quickly.

2. The rear-side impact-resistant structure for automobiles according to claim 1, characterized in that: Two guide sleeves are symmetrically installed on the rear anti-collision beam, and the two guide sleeves are respectively nested on two guide rods of the vehicle body; the guide rods and the corresponding guide sleeves have a structure that fixes the relative position of the two when the rear anti-collision beam is not impacted, and releases the fixation of the relative position of the two when the rear anti-collision beam is subjected to a violent impact, thereby effectively buffering the rear anti-collision beam.

3. The rear-side impact-resistant structure for automobiles according to claim 2, characterized in that: The guide rod has two pairs of symmetrical round pins on both sides. Each pair of round pins is inserted into two round grooves on the corresponding side of the guide sleeve and cooperates with the horizontal sliding groove C that connects the two round grooves.

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