Damping type automobile bumper structure

Abstract

The utility model provides a damping type automobile bumper structure, which relates to the technical field of bumpers and comprises a bumper body. The bumper body is provided with a transverse beam structural plate in the left-right direction, a threaded hole penetrating front and back is formed in the middle of the transverse beam structural plate, stepped holes penetrating front and back are formed in the middles of the left end and the right end of the front portion of the transverse beam structural plate, the section of the transverse beam structural plate is of an arch structure, and the middle of the front portion of the transverse beam structural plate is bent to form a dovetail groove structure. Buffering exhaust bags in the left-right direction are installed in the dovetail groove structures of the cross beam structural plates, the buffering exhaust bags are conveniently limited in the dovetail groove structures of the cross beam structural plates through dovetail strips, and limiting stop columns are conveniently installed on the cross beam structural plates through threads to stop the buffering exhaust bags. The problems that a buffer material of a bumper is fixed through a plurality of bolts, the disassembly and assembly process is tedious, and limiting installation of the buffer material is inconvenient to achieve through a bending structure of a cross beam are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bumpers, and in particular relates to a shock-absorbing automobile bumper structure. Background Art

[0002] A car bumper is a safety device that absorbs and mitigates external impact and protects the front and rear parts of the car body. The structure of a car bumper usually includes three parts: outer panel, buffer material and cross beam. The outer panel and buffer material are generally made of plastic, while the cross beam is usually stamped into a U-shaped groove from cold-rolled thin plate. The thickness of the cross beam is about 1.5 mm. These parts are connected by bolts and can be easily removed.

[0003] Based on the above, the inventors found that the existing automobile bumper structure has the following deficiencies:

[0004] 1. The buffer material of the bumper is fixed by multiple bolts, which makes the disassembly and assembly process more complicated and inconvenient to achieve the limited installation of the buffer material through the bending structure of the crossbeam;

[0005] 2. The cross beam and the bearing seat of the bumper are fixed, which easily transmits the vibration to the frame. It is not convenient to set the cross beam and the bearing seat to be movable to reduce the transmission of vibration. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a shock-absorbing automobile bumper structure to solve the problem that the buffer material of the existing bumper is fixed by multiple bolts, which makes the disassembly and assembly process more cumbersome and it is inconvenient to achieve the limited installation of the buffer material through the bending structure of the crossbeam; the crossbeam and the bearing seat of the bumper are fixed, which easily transmits the vibration to the frame, and it is inconvenient to set the crossbeam and the bearing seat to be movable to reduce the transmission of vibration.

[0007] The purpose and effect of the shock-absorbing automobile bumper structure of the utility model are achieved by the following specific technical means:

[0008] A shock-absorbing automobile bumper structure comprises a bumper body; the bumper body is provided with a cross beam structure plate in the left and right directions, a threaded hole penetrating front and back is provided in the middle of the cross beam structure plate, stepped holes penetrating front and back are provided in the middle of the left and right ends of the front of the cross beam structure plate, the cross beam structure plate has an arched cross section, a dovetail groove structure is formed by bending in the middle of the front of the cross beam structure plate, and a buffer air bag in the left and right directions is installed inside the dovetail groove structure of the cross beam structure plate, an air bag is provided in front of the buffer air bag, and the exhaust of the buffer air bag Semicircular heads are provided at both ends of the airbag, dovetail strips in left and right directions are provided at the rear of the airbag of the cushioning airbag, a blind hole is provided in the middle of the rear of the dovetail strip of the cushioning airbag, exhaust holes that penetrate front and back are provided on the left and right sides of the rear wall of the airbag of the cushioning airbag, a limit stop column in the front and back direction is installed at the rear of the threaded hole of the crossbeam structure plate, a threaded column is provided in front of the limit stop column, a limit ring plate is provided on the outer circumference of the rear end of the threaded column of the limit stop column, and a regular hexagonal groove is provided on the rear end face of the threaded column of the limit stop column.

[0009] Furthermore, a shock-absorbing column spring in the front-to-back direction is placed inside the square tube of the crossbeam bearing seat, and a corrosion-resistant layer is provided on the surface of the shock-absorbing column spring.

[0010] Furthermore, the upper and lower walls of the front end of the square tube of the beam bearing seat are provided with strip holes that run through the front and back directions, and the rear end surface of the square tube of the beam bearing seat is provided with square fixing plates with front and back through holes at the four corners.

[0011] Furthermore, a beam bearing seat in the front-to-back direction is sleeved on the rear end of the beam bearing block, and a square tube in the front-to-back direction is arranged in front of the beam bearing seat.

[0012] Furthermore, a fixed anti-slip column is installed in the up-and-down direction inside the anti-slip threaded blind hole of the beam bearing block, a thread is provided on the outer circumference of the fixed anti-slip column, and a regular hexagonal groove is provided on the outer end surface of the fixed anti-slip column.

[0013] Furthermore, a fixed threaded blind hole is provided in the middle of the front end surface of the cross beam bearing block, and anti-slip threaded blind holes are provided on the upper and lower end surfaces of the rear end of the cross beam bearing block.

[0014] Furthermore, beam bearing blocks in the front-to-rear direction are installed at both left and right ends of the rear of the beam structure plate by bolts, and the front end surface of the beam bearing block is provided with a matching arc surface.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The buffer air bag is conveniently limited in the dovetail groove structure of the crossbeam structural plate by the dovetail strip, and the limit stop column is conveniently installed on the crossbeam structural plate through threads to stop the buffer air bag, which solves the problem that the buffer material of the bumper is fixed by multiple bolts, resulting in a cumbersome disassembly and assembly process and it is inconvenient to achieve the limited installation of the buffer material through the bending structure of the crossbeam.

[0017] The crossbeam bearing block is convenient for bearing the crossbeam structural plate by fixing the anti-slip column and limiting it inside the crossbeam bearing seat, so that the crossbeam structural plate and the crossbeam bearing seat form a movable connection to reduce vibration transmission, and solves the problem that the crossbeam and the bearing seat of the bumper are fixed, which easily transmits the vibration to the frame, and it is inconvenient to set the crossbeam and the bearing seat to be movable to reduce vibration transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a rear view structural schematic diagram of the utility model.

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0021] Figure 4 It is a schematic diagram of the disassembled structure of the utility model.

[0022] Figure 5 It is a cross-sectional schematic diagram of the beam bearing seat of the utility model.

[0023] Figure 6 It is a cross-sectional schematic diagram of the cushioning air bag of the utility model.

[0024] In the figure: 1. bumper body; 2. crossbeam structural plate; 3. cushioning air bag; 4. limit stop column; 5. crossbeam bearing block; 6. fixed anti-slip column; 7. crossbeam bearing seat; 8. shock absorber column spring. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0026] Embodiment 1:

[0027] As attached Figure 1 To Attachment Figure 6 As shown:

[0028] The utility model provides a shock-absorbing automobile bumper structure, including a bumper body 1; the bumper body 1 is provided with a cross beam structure plate 2 in the left and right directions, which is convenient for carrying various components; a threaded hole penetrating front and rear is opened in the middle of the cross beam structure plate 2, which is convenient for the limit stop column 4 to be installed by threading; stepped holes penetrating front and rear are opened in the middle of the left and right ends of the front of the cross beam structure plate 2, which is convenient for the cross beam bearing block 5 to be installed by bolts; the cross beam structure plate 2 has an arched cross section, which is convenient for strengthening the force bearing capacity; a dovetail groove structure is formed by bending in the middle of the front of the cross beam structure plate 2, which is convenient for the installation of a buffer air bag 3; buffer air bags 3 in the left and right directions are installed inside the dovetail groove structure of the cross beam structure plate 2, which is convenient for impact buffering; an exhaust bag is arranged in front of the buffer air bag 3, which is convenient for force exhaust buffering; and the exhaust bags of the buffer air bag 3 are arranged at both ends. A semicircular head is provided to prevent stress concentration. A dovetail strip in the left and right directions is provided at the rear of the air bag of the buffer air bag 3, which is convenient for limiting the installation on the crossbeam structure plate 2. An insertion blind hole is provided in the middle of the rear of the dovetail strip of the buffer air bag 3, which is convenient for inserting the limit stop column 4. Front and rear exhaust holes are provided on the left and right sides of the rear wall of the air bag of the buffer air bag 3, which is convenient for the air inside the air bag to be slowly discharged after the impact to achieve buffering. A limit stop column 4 in the front and rear directions is installed at the rear of the threaded hole of the crossbeam structure plate 2, which is convenient for stopping the buffer air bag 3 to the left and right. A threaded column is provided in front of the limit stop column 4, which is convenient for threaded installation. A limit ring plate is provided on the outer circumference of the rear end of the threaded column of the limit stop column 4, which is convenient for installation and limiting. A regular hexagonal groove is provided on the rear end face of the threaded column of the limit stop column 4, which is convenient for rotation and disassembly by tools.

[0029] Among them, the left and right ends of the rear of the crossbeam structural plate 2 are both installed with crossbeam bearing blocks 5 in the front and rear directions by bolts, which is convenient for bearing the crossbeam structural plate 2, and the front end surface of the crossbeam bearing block 5 is provided with a matching arc surface, which is convenient for matching with the crossbeam structural plate 2, and a fixed threaded blind hole is opened in the middle of the front end surface of the crossbeam bearing block 5, which is convenient for the crossbeam structural plate 2 to be installed by bolts, and the upper and lower end surfaces of the rear end of the crossbeam bearing block 5 are both provided with anti-slip threaded blind holes, which is convenient for fixing the anti-slip column 6 to be installed by thread, and the anti-slip threaded blind holes of the crossbeam bearing block 5 are installed with fixed anti-slip columns 6 in the upper and lower directions, which is convenient for preventing the crossbeam bearing block 5 from slipping off, and the outer circumference of the fixed anti-slip column 6 is provided with threads, which is convenient for threaded installation, and the outer end surface of the fixed anti-slip column 6 is provided with a regular hexagonal groove, which is convenient for passing The tool is used for rotating disassembly and assembly. The rear end of the beam bearing block 5 is sleeved with a beam bearing seat 7 in the front-to-back direction, which is convenient for the beam bearing block 5 to move forward and backward. A square tube in the front-to-back direction is arranged in front of the beam bearing seat 7, which is convenient for the beam bearing block 5 and the shock-absorbing column spring 8 to be placed inside. The upper and lower walls at the front end of the square tube of the beam bearing seat 7 are provided with strip holes that run through the front-to-back direction, which is convenient for the fixed anti-slip column 6 to be inserted and moved forward and backward. The rear end surface of the square tube of the beam bearing seat 7 is provided with a square fixing plate with front and rear through holes at the four corners, which is convenient for fixing to the frame by bolts. The inside of the square tube of the beam bearing seat 7 is provided with a shock-absorbing column spring 8 in the front-to-back direction, which is convenient for compression and shock absorption through the beam bearing block 5. The surface of the shock-absorbing column spring 8 is provided with a corrosion-resistant layer, which is convenient for increasing the service life.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When the front of the cushioning air bag 3 is hit backward, the cushioning air bag 3 is squeezed and the internal air is slowly discharged from the exhaust hole, thereby realizing the first impact buffering. At the same time, the impact force is transmitted to the cross beam structure plate 2 through the cushioning air bag 3, so that the cross beam structure plate 2 is forced to move backward, and the cross beam bearing block 5 is pushed to move backward synchronously inside the cross beam bearing seat 7 through the cross beam structure plate 2, so that the cross beam bearing block 5 moves backward to compress the shock absorber column spring 8, thereby realizing the second buffering shock absorption.

[0032] Embodiment 2:

[0033] The difference from the first embodiment is that the regular hexagonal groove of the limit stop column 4 can also be set as a regular heptagonal groove, so that the limit stop column 4 can only be rotated by a special tool that cooperates with the regular heptagonal groove, preventing non-staff from rotating and disassembling the limit stop column 4.

[0034] Embodiment three:

[0035] The difference from the first embodiment is that the regular hexagonal groove of the fixed anti-detachment column 6 can also be set as a regular heptagonal groove, so that the fixed anti-detachment column 6 can only be rotated by a special tool that cooperates with the regular heptagonal groove, preventing non-staff from rotating and disassembling the fixed anti-detachment column 6.

Claims

1. A shock-absorbing automobile bumper structure, characterized in that: The bumper body (1) comprises a cross-beam structure plate (2), the cross-beam structure plate (2) having a threaded hole extending forward and backward in the middle, the cross-beam structure plate (2) having stepped holes extending forward and backward in the middle of both left and right ends in front of the cross-beam structure plate (2), the cross-beam structure plate (2) having an arched cross-section, the cross-beam structure plate (2) having a dovetail groove structure formed by bending in the middle of the front of the cross-beam structure plate (2), a cushioning air bag (3) being installed inside the dovetail groove structure of the cross-beam structure plate (2), an air bag being arranged in front of the cushioning air bag (3), and the air bag ends of the cushioning air bag (3) A semicircular head is provided, a dovetail strip in the left and right directions is provided at the rear of the exhaust bag of the cushioning exhaust bag (3), an insertion blind hole is provided in the middle of the rear of the dovetail strip of the cushioning exhaust bag (3), exhaust holes that penetrate front and back are provided on the left and right sides of the rear wall of the exhaust bag of the cushioning exhaust bag (3), a limit stop column (4) is installed at the rear of the threaded hole of the crossbeam structure plate (2), a threaded column is provided in front of the limit stop column (4), a limit ring plate is provided on the outer circumference of the rear end of the threaded column of the limit stop column (4), and a regular hexagonal groove is provided on the rear end surface of the threaded column of the limit stop column (4).

2. A shock-absorbing automobile bumper structure as claimed in claim 1, characterized in that: The left and right ends of the rear of the crossbeam structural plate (2) are both mounted with crossbeam bearing blocks (5) by means of bolts, and the front end surface of the crossbeam bearing block (5) is provided with a matching arc surface.

3. A shock-absorbing automobile bumper structure as claimed in claim 2, characterized in that: A fixing threaded blind hole is provided in the middle of the front end surface of the cross beam bearing block (5), and anti-slip threaded blind holes are provided on the upper and lower end surfaces of the rear end of the cross beam bearing block (5).

4. A shock-absorbing automobile bumper structure as claimed in claim 3, characterized in that: A fixed anti-slip column (6) is installed inside the anti-slip threaded blind hole of the crossbeam bearing block (5), a thread is provided on the outer circumference of the fixed anti-slip column (6), and a regular hexagonal groove is provided on the outer end surface of the fixed anti-slip column (6).

5. A shock-absorbing automobile bumper structure as claimed in claim 4, characterized in that: The rear end of the crossbeam bearing block (5) is sleeved with a crossbeam bearing seat (7), and a square cylinder in the front-to-back direction is arranged in front of the crossbeam bearing seat (7).

6. A shock-absorbing automobile bumper structure as claimed in claim 5, characterized in that: The upper and lower walls of the front end of the square tube of the cross beam bearing seat (7) are provided with strip holes that penetrate vertically and forwardly in the front and rear directions, and the rear end surface of the square tube of the cross beam bearing seat (7) is provided with square fixing plates with front and rear through holes at the four corners.

7. A shock-absorbing automobile bumper structure as claimed in claim 6, characterized in that: A shock-absorbing column spring (8) is placed inside the square tube of the crossbeam bearing seat (7), and a corrosion-resistant layer is provided on the surface of the shock-absorbing column spring (8).

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