Automobile bumper with good anti-collision effect

Abstract

The utility model provides an automobile bumper with a good anti-collision effect. The automobile bumper comprises a bumper shell, one end of the movable pipe is fixedly mounted on the inner wall of the bumper shell, and an extrusion mechanism is arranged on the movable pipe; one end of the outer cylinder is fixedly provided with a mounting plate fixed at the head of the automobile; an end hole is formed in the end, away from the mounting plate, of the outer cylinder, the movable pipe is in clearance fit connection with the end hole, and one end of the movable pipe extends into the outer cylinder; the elastic connecting seat is mounted in the outer cylinder, and the elastic connecting seat is connected with the end, extending into the outer cylinder, of the movable pipe through an inserting mechanism; and the operation part is connected with the extrusion mechanism, and one end of the operation part is arranged outside the bumper shell. Through the design of the movable pipe, the outer cylinder and the elastic connecting base, during collision, the movable pipe moves towards the interior of the outer cylinder to compress the elastic connecting base, so that elastic buffering is achieved, the impact force of collision is reduced, and the anti-collision effect is improved.

Description

Technical Field

[0001] The utility model relates to a car bumper with good anti-collision effect. Background Art

[0002] The car bumper is an important safety device on the car. It not only has a decorative function, but more importantly, it can absorb and mitigate external impact, protect the car body and protect the safety of the occupants.

[0003] At present, traditional automobile bumpers use shell deformation to cushion the impact force when the vehicle collides with external objects, but there is a lack of elastic buffer design between the shell and the front of the vehicle, and the anti-collision buffering effect may be poor; after a further vehicle collision, the automobile bumper directly collides with the external object and is easily damaged. At present, traditional automobile bumpers are generally installed with screws and nuts. When disassembling or installing, it is necessary to use tools such as wrenches and screwdrivers to unscrew or tighten the screws and nuts, which causes inconvenience in disassembly and assembly, making it inconvenient to replace the automobile bumper or disassemble it for repair. Utility Model Content

[0004] The utility model provides a car bumper with good anti-collision effect in order to solve the technical problems of lack of elastic buffer and inconvenient disassembly and replacement.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a car bumper with good anti-collision effect, comprising a bumper shell; further comprising: a movable tube, one end of the movable tube is fixedly mounted on the inner wall of the bumper shell, and a squeezing mechanism is arranged on the movable rod; an outer tube, one end of the outer tube is fixedly mounted with a mounting plate fixed at the front of the car; an end of the outer tube away from the mounting plate is provided with an end hole, the movable tube is connected with the end hole by clearance fit, and one end of the movable tube extends to the inside of the outer tube; an elastic connecting seat, the elastic connecting seat is installed to the inside of the outer tube, and the elastic connecting seat is connected with one end of the movable tube extending into the outer tube through a plug-in mechanism; an operating component, the operating component is connected with the squeezing mechanism, and one end of the operating component is arranged outside the bumper shell.

[0007] Preferably, the elastic connection seat comprises a second spring and a socket; the socket is elastically connected to the mounting plate via the second spring, and the socket is connected to the inner wall of the outer cylinder in a clearance fit.

[0008] Preferably, a cavity is provided on the socket, and one end of the movable tube is connected to the cavity with a clearance fit.

[0009] Preferably, there are two plug-in mechanisms, and the two plug-in mechanisms are symmetrically arranged on both sides of the socket.

[0010] Preferably, the plug-in mechanism includes a first bevel block and a third spring; a guide groove and a second concave hole are respectively provided on the inner and outer side walls of the socket, and the guide groove is connected with the second concave hole, the first bevel block passes through the second concave hole, and the first bevel block is connected with the guide groove with a clearance fit, the third spring is arranged in the second concave hole, and the third spring is sleeved on the first bevel block, and the first bevel block is elastically connected to the socket through the third spring.

[0011] Preferably, slots are provided on both side walls of the movable tube, and the slots are communicated with the interior of the movable tube, and one end of the first inclined surface block provided with an inclined surface is inserted into the slots.

[0012] Preferably, both sides of one end of the movable tube away from the bumper shell are provided with chamfered surfaces matching the inclined surface of the first inclined surface block.

[0013] Preferably, the extrusion mechanism includes a second inclined plane block, a fourth spring and an extrusion block; the number of the second inclined plane blocks is two, and the two second inclined plane blocks are symmetrically arranged on both sides of the extrusion block, one end of the inclined plane of the second inclined plane block is in contact with the extrusion block, the fourth spring is sleeved on the second inclined plane block, and the second inclined plane block is elastically connected to the movable tube through the fourth spring, and one end of the second inclined plane block is connected to the slot with a clearance fit.

[0014] Preferably, the operating component includes a movable rod and a blocking plug; a guide hole and a first recessed hole are respectively provided on the inner and outer surfaces of the bumper shell, and the guide hole is connected to the first recessed hole, the movable rod is connected to the guide hole with a clearance fit, and one end of the movable rod is fixedly connected to the extrusion block, and the other end of the movable rod is fixedly connected to the blocking plug, and the blocking plug is installed in the first recessed hole.

[0015] Preferably, a first spring is arranged in the first concave hole, and the shielding plug is elastically connected to the bumper shell through the first spring.

[0016] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0017] The positive and progressive effects of the utility model are:

[0018] The automobile bumper with good anti-collision effect proposed above is designed with a movable tube, an outer tube and an elastic connecting seat. When a collision occurs, the movable tube moves toward the inside of the outer tube to compress the elastic connecting seat, thereby realizing elastic buffering, reducing the impact force of the collision and improving the anti-collision effect. Further, through the design of the extrusion mechanism, the plug-in mechanism and the operating components, when the bumper shell is disassembled, the extrusion mechanism is driven by the operating component to extrude the plug-in mechanism, so that the movable tube and the elastic connecting seat are disconnected. Then, the bumper shell is pulled to separate the movable tube from the outer tube, and the disassembly is completed. When the bumper shell is installed, the movable tube is directly inserted into the outer tube, and the movable tube and the elastic connecting seat can be connected through the plug-in mechanism, so that the replacement and disassembly of the bumper shell are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the bumper shell, outer tube and movable tube of the utility model.

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the structure with the A part in the middle enlarged.

[0022] Description of Reference Numerals

[0023] 1. Bumper shell; 2. Blocking plug; 3. Mounting plate; 4. Outer tube; 401. End hole; 5. Movable tube; 501. Chamfered surface; 6. First concave hole; 7. Guide hole; 8. Movable rod; 9. First spring; 10. Extrusion block; 11. Socket; 12. Second spring; 13. Second concave hole; 14. First inclined block; 15. Third spring; 16. Socket; 17. Second inclined block; 18. Fourth spring. DETAILED DESCRIPTION

[0024] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0025] like Figure 1-3As shown, a car bumper with good anti-collision effect includes a bumper shell 1; it is characterized in that it also includes: a movable tube 5, one end of which is fixedly installed on the inner wall of the bumper shell 1, and a movable rod 8 is provided with an extrusion mechanism; an outer tube 4, one end of which is fixedly installed with a mounting plate 3 fixed at the front of the car; an end of the outer tube 4 away from the mounting plate 3 is provided with an end hole 401, the movable tube 5 is connected with the end hole 401 with a clearance fit, and one end of the movable tube 5 extends to the inside of the outer tube 4; an elastic connecting seat, the elastic connecting seat is installed to the inside of the outer tube 4, and the elastic connecting seat is connected with one end of the movable tube 5 extending into the outer tube 4 through a plug-in mechanism; an operating component, the operating component is connected to the extrusion mechanism, and one end of the operating component is arranged on the outside of the bumper shell 1.

[0026] The elastic connection seat includes a second spring 12 and a socket 11 ; the socket 11 is elastically connected to the mounting plate 3 via the second spring 12 , and the socket 11 is connected to the inner wall of the outer tube 4 with clearance fit.

[0027] The socket 11 is provided with a cavity, and one end of the movable tube 5 is connected with the cavity in a clearance fit.

[0028] There are two plug-in mechanisms, and the two plug-in mechanisms are symmetrically arranged on both sides of the socket 11 .

[0029] The plug-in mechanism includes a first inclined surface block 14 and a third spring 15; a guide groove and a second concave hole 13 are respectively provided on the inner and outer side walls of the socket 11, and the guide groove is communicated with the second concave hole 13, the first inclined surface block 14 passes through the second concave hole 13, and the first inclined surface block 14 is connected with the guide groove with a clearance fit, the third spring 15 is arranged in the second concave hole 13, and the third spring 15 is sleeved on the first inclined surface block 14, and the first inclined surface block 14 is elastically connected to the socket 11 through the third spring 15.

[0030] Slots 16 are provided on both side walls of the movable tube 5 , and the slots 16 are communicated with the interior of the movable tube 5 . One end of the first inclined surface block 14 with an inclined surface is inserted into the slots 16 .

[0031] The movable tube 5 is provided with chamfered surfaces 501 on both sides of one end away from the bumper housing 1 , which are matched with the inclined surface of the first inclined surface block 14 .

[0032] Through the design of the chamfered surface 501, when the movable tube 5 is inserted into the end hole 401, the chamfered surface 501 can squeeze the inclined surface of the first inclined surface block 14, so that the first inclined surface block 14 can move. When the movable tube 5 is fully inserted into the socket 11, the first inclined surface block 14 is aligned with the slot 16. The first inclined surface block 14 can be inserted into the slot 16 by the elastic force of the third spring 15 for connection, and the overall installation operation is convenient.

[0033] The extrusion mechanism includes a second inclined surface block 17, a fourth spring 18 and an extrusion block 10; the number of the second inclined surface blocks 17 is two, and the two second inclined surface blocks 17 are symmetrically arranged on both sides of the extrusion block 10, and one end of the inclined surface of the second inclined surface block 17 is in contact with the extrusion block 10, such as Figure 2-3 As shown, the extrusion block 10 also has inclined surfaces on both sides for adapting to the inclined surfaces of the second inclined surface block 17; the fourth spring 18 is sleeved on the second inclined surface block 17, and the second inclined surface block 17 is elastically connected to the movable tube 5 through the fourth spring 18, and one end of the second inclined surface block 17 is connected to the slot 16 with a clearance fit; the operating component includes a movable rod 8 and a shielding plug 2; a guide hole 7 and a first concave hole 6 are respectively provided on the inner and outer surfaces of the bumper shell 1, and the guide hole 7 is communicated with the first concave hole 6, the movable rod 8 is connected with the guide hole 7 with a clearance fit, and one end of the movable rod 8 is fixedly connected to the extrusion block 10, and the other end of the movable rod 8 is fixedly connected to the shielding plug 2, and the shielding plug 2 is installed in the first concave hole 6 with a fitting; a first spring 9 is provided in the first concave hole 6, and the shielding plug 2 is elastically connected to the bumper shell 1 through the first spring 9.

[0034] The shielding plug 2 is used to fill the first concave hole 6. At the same time, by pressing the shielding plug 2, the extrusion mechanism can be driven to move the second inclined surface block 17.

[0035] Working principle: When in use, the entire car bumper is fixedly mounted on the front of the car through the mounting plate 3;

[0036] When the car is driving, a collision occurs, and the bumper shell 1 collides with an external object. Due to the impact force of the collision, the bumper shell 1 and the movable tube 5 move together, the bumper shell 1 approaches the front of the car, and the movable tube 5 moves inside the outer tube 4. The movable tube 5 pushes the socket 11 to slide inside the outer tube 4, and at the same time compresses the second spring 12 to buffer, thereby reducing the impact force caused by the collision and improving the anti-collision effect.

[0037] Further, after the collision, the bumper shell 1 is directly impacted and damaged, and needs to be replaced or disassembled for repair; the shielding plug 2 is pressed by the finger, and the shielding plug 2 moves into the first recessed hole 6 to compress the first spring 9. At the same time, when the shielding plug 2 moves, the extrusion block 10 is driven to move by the movable rod 8, and the extrusion block 10 squeezes and pushes the inclined surface of the end of the second inclined surface block 17 to make the second inclined surface block 17 move into the slot 16, and at the same time compresses the fourth spring 18. When the second inclined surface block 17 moves, it pushes the first inclined surface block 14 and pushes the first inclined surface block 14 out of the slot 16, so that the connection between the socket 11 and the movable tube 5 is cancelled, and then the bumper shell 1 is pulled to pull the movable tube 5 out of the outer tube 4 to complete the disassembly; after disassembly, the damage is replaced, the bumper shell 1 is replaced or repaired, and then it is reassembled. During a new installation, the staff member holds the bumper shell 1 without pressing the blocking plug 2, aligns the end of the movable tube 5 with the end hole 401, moves the bumper shell 1, allows the end of the movable tube 5 to pass through the end hole 401 into the outer tube 4, and is inserted into the cavity on the socket 11. During the insertion process, the chamfered surface 501 on the movable tube 5 is used to squeeze the inclined surface of the first inclined surface block 14, so that the first inclined surface block 14 moves, and at the same time stretches the third spring 15 until the movable tube 5 is completely inserted into the cavity. At this time, the slot 16 is aligned with the first inclined surface block 14. The elastic force of the third spring 15 can drive the first inclined surface block 14 to be inserted into the slot 16, completing the connection between the socket 11 and the movable tube 5. The above-mentioned operation and structure can facilitate the disassembly and installation of the bumper shell 1, providing convenience for the maintenance and replacement of the bumper shell 1.

[0038] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A car bumper with good anti-collision effect, comprising a bumper shell (1); characterized in that: Also includes: A movable tube (5), one end of which is fixedly mounted on the inner wall of the bumper shell (1), and a squeezing mechanism is provided on the movable rod (8); An outer cylinder (4), one end of the outer cylinder (4) being fixedly mounted with a mounting plate (3) fixed to the front of the vehicle; an end of the outer cylinder (4) away from the mounting plate (3) is provided with an end hole (401), the movable tube (5) being connected to the end hole (401) with a clearance fit, and one end of the movable tube (5) extending into the interior of the outer cylinder (4); An elastic connection seat, the elastic connection seat is installed inside the outer tube (4), and the elastic connection seat is connected to one end of the movable tube (5) extending into the outer tube (4) through a plug-in mechanism; An operating component is connected to the squeezing mechanism, and one end of the operating component is arranged outside the bumper shell (1).

2. The automobile bumper with good anti-collision effect as claimed in claim 1, characterized in that: The elastic connection seat comprises a second spring (12) and a socket (11); the socket (11) is elastically connected to the mounting plate (3) via the second spring (12), and the socket (11) is connected to the inner wall of the outer cylinder (4) in a clearance fit.

3. The automobile bumper with good anti-collision effect as claimed in claim 2, characterized in that: The socket (11) is provided with a cavity, and one end of the movable tube (5) is connected to the cavity with a clearance fit.

4. The automobile bumper with good anti-collision effect as claimed in claim 2, characterized in that: The number of the plug-in mechanisms is two, and the two plug-in mechanisms are symmetrically arranged on both sides of the socket (11).

5. The automobile bumper with good anti-collision effect as claimed in claim 4, characterized in that: The plug-in mechanism comprises a first inclined surface block (14) and a third spring (15); a guide groove and a second concave hole (13) are respectively provided on the inner and outer side walls of the socket (11), and the guide groove is communicated with the second concave hole (13); the first inclined surface block (14) passes through the second concave hole (13), and the first inclined surface block (14) is connected with the guide groove by clearance fit; the third spring (15) is arranged in the second concave hole (13), and the third spring (15) is sleeved on the first inclined surface block (14); the first inclined surface block (14) is elastically connected with the socket (11) through the third spring (15).

6. The automobile bumper with good anti-collision effect as claimed in claim 5, characterized in that: Slots (16) are provided on both side walls of the movable tube (5), and the slots (16) are communicated with the interior of the movable tube (5), and one end of the first inclined surface block (14) provided with an inclined surface is inserted into the slots (16).

7. The automobile bumper with good anti-collision effect as claimed in claim 6, characterized in that: Chamfered surfaces (501) matching the inclined surface of the first inclined surface block (14) are provided on both sides of one end of the movable tube (5) away from the bumper shell (1).

8. The automobile bumper with good anti-collision effect as claimed in claim 6, characterized in that: The extrusion mechanism comprises a second inclined surface block (17), a fourth spring (18) and an extrusion block (10); the number of the second inclined surface blocks (17) is two, and the two second inclined surface blocks (17) are symmetrically arranged on both sides of the extrusion block (10); one end of the inclined surface of the second inclined surface block (17) is in contact with the extrusion block (10); the fourth spring (18) is sleeved onto the second inclined surface block (17), and the second inclined surface block (17) is elastically connected to the movable tube (5) through the fourth spring (18); one end of the second inclined surface block (17) is connected to the slot (16) with a clearance fit.

9. The automobile bumper with good anti-collision effect as claimed in claim 8, characterized in that: The operating component comprises a movable rod (8) and a shielding plug (2); a guide hole (7) and a first concave hole (6) are respectively provided on the inner and outer surfaces of the bumper shell (1), and the guide hole (7) is communicated with the first concave hole (6); the movable rod (8) and the guide hole (7) are connected with each other in a clearance fit, and one end of the movable rod (8) is fixedly connected to the extrusion block (10), and the other end of the movable rod (8) is fixedly connected to the shielding plug (2), and the shielding plug (2) is installed in the first concave hole (6) in a fitting manner.

10. The automobile bumper with good anti-collision effect as claimed in claim 9, characterized in that: A first spring (9) is arranged in the first concave hole (6), and the shielding plug (2) is elastically connected to the bumper shell (1) via the first spring (9).

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