Air-compressed bumper assembly for automobile

Abstract

The invention relates to the technical field of pneumatic bumpers, and proposes an pneumatic bumper assembly for automobiles. After an electric winch is assembled, the assembled electric winch causes less damage to the integrity of an external skin, and the external plastic skin has good structural integrity, thereby ensuring the structural strength of the external plastic skin, and achieving stable maintenance of the use effect of the external plastic skin. The electric winch also has good structural strength. At the same time, the electric winch can be stored after use, and the aesthetics of the external plastic skin is less affected after storage. The storage operation and the display operation are relatively simple, and the operability is relatively strong. The pneumatic bumper assembly comprises an electric winch, a vehicle frame, an external plastic skin, a main frame and a winch mounting frame. The winch mounting frame comprises a sheet metal frame, a sheet metal mounting area and two rotating mounting ears are arranged on the sheet metal frame, the electric winch is mounted on the sheet metal frame, a traction rope is wound around the electric winch, a connecting hook is connected to the rope head of the traction rope, and a guide component is installed in the sheet metal mounting area.

Description

Technical Field

[0001] The invention relates to the technical field of air-compressed bumpers, and in particular to an air-compressed bumper assembly for an automobile. Background Art

[0002] As we all know, the automobile bumper is a safety device that absorbs and mitigates external impact and protects the front and rear parts of the automobile body. Usually, the automobile bumper is composed of an internal steel structure and an external plastic skin. According to the increasing maturity of the current technology, the external plastic skin is mostly formed by air-compressed vacuum forming. For some vehicles equipped with electric winches, most of them need to cut the external plastic skin to facilitate the exposure of the electric winch after being connected to the internal steel structure. However, in this case, the structure of the external plastic skin will be damaged to a certain extent, affecting the structural strength of the external plastic skin. In order to facilitate the installation of the electric winch and ensure the structural strength of the external plastic skin after the electric winch is installed, an air-compressed bumper assembly for automobiles is proposed.

[0003] After searching, the Chinese invention patent with the announcement number CN107879267B authorized and announced on December 10, 2019 discloses a vehicle-mounted winch connection device, which is roughly described as comprising an inner bar and an outer bar, the inner bar is provided with a T-shaped main guide groove extending left and right with an opening facing forward, a slider of the same length is fitted in the main guide groove, and lateral protrusions of the connecting part are provided at both ends of the slider, and a carrier located in the front part of the inner bar is connected to the left and right center positions of the slider, an electric winch is provided on the carrier, threaded holes are respectively provided on the left and right sides of the electric winch on the slider, positioning holes distributed left and right are provided in the main guide groove, positioning bolts are provided in the threaded holes, and positioning pins inserted into a positioning hole are connected to the positioning bolts, the inner bar is respectively connected with an upper guide groove and a lower guide groove, the outer bar is composed of two relatively symmetrical parts, and an exposed space for exposing the electric winch is provided at the relative positions of the two outer bars, and a notch pressed by a bolt cap is provided at the exposed space, and the two outer bars are provided with a plurality of holes. The lower part is provided with sliding rails which coincide with the upper guide groove and the lower guide groove respectively. The outer ends of the two outer bars are provided with side plates, and the side plates are provided with holes for accommodating lateral protrusions. Hanging points are provided at the left and right center positions of the inner bar, and the hanging points are connected to the two side plates by tension springs respectively. A hook is provided on the carrier. The rear end of the inner bar is connected to the longitudinal beam of the frame through a connecting block. When in use, the positioning bolt is unlocked on the left or right side, and the side connection part is pulled to move the front bar and the slider on this side outward, and the carrier is slid along the guide groove to the required end. The positioning bolt is locked to adjust the traction position. When implemented, the rear end of the inner lever can be connected to the longitudinal beam of the frame through the connecting block to play the role of a bumper. Although the aforementioned prior art solution can realize the installation of an electric winch, it requires the outer bar to be made into multiple structural parts, which are connected to each other to form an outer bar. The structural integrity is poor, which reduces the protection effect to a certain extent and reduces the safety of the outer bar. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an air-compressed bumper assembly for an automobile. After an electric winch is assembled, the assembled electric winch causes less damage to the integrity of the external skin, and the external plastic skin has good structural integrity, thereby ensuring the structural strength of the external plastic skin, and achieving stable maintenance of the use effect of the external plastic skin. The electric winch also has good structural strength. At the same time, the electric winch can be stored after use, which has less impact on the aesthetics of the external plastic skin. The storage and display operations are relatively simple, and the operability is relatively strong.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: an air-compressed bumper assembly for an automobile, comprising an electric winch, a vehicle frame, an external plastic skin, a main frame and a winch mounting frame, wherein

[0008] The winch mounting frame comprises a sheet metal frame, a sheet metal mounting area and two rotating mounting ears are arranged on the sheet metal frame, the electric winch is mounted on the sheet metal frame, a traction rope is wound around the electric winch, a connecting hook is fixedly connected to the rope head of the traction rope, a guide assembly is installed on the sheet metal mounting area, the guide assembly is used to guide the traction rope, shaft holes are arranged on the two rotating mounting ears, and a limited position reinforcement structure is installed on the sheet metal frame, wherein

[0009] The main frame includes two sheet metal connecting frames, both of which are connected to the vehicle frame, and an auxiliary frame is fixedly connected between the two sheet metal connecting frames and the vehicle frame, and both of the two auxiliary frames are fixedly connected to connecting shafts, and the two connecting shafts are rotatably connected in the two shaft holes respectively, and the top ends of the two sheet metal connecting frames are fixedly connected to the upper support flanges, and the bottom ends of the two sheet metal connecting frames are fixedly connected to the lower support flanges, wherein

[0010] An upper reinforcing ridge and a lower reinforcing ridge are respectively arranged at the top and bottom ends of the external plastic skin, the two upper supporting flanges are both connected to the upper reinforcing ridge, and the two lower supporting flanges are both connected to the lower reinforcing ridge.

[0011] On the basis of the above scheme, the guide assembly includes two sliding seats, the sheet metal mounting area is provided with two sliding grooves, the two sliding seats are respectively slidably fitted in the two sliding grooves, vertical rollers are rotatably connected in the two sliding seats, two telescopic rollers are rotatably connected between the two sliding seats, the ends of the two sliding seats away from each other are fixedly connected with elastic springs, and the sheet metal mounting area is provided with two supporting flange ears, and the two supporting flange ears are respectively connected to the two elastic springs.

[0012] Preferably, on the basis of the above scheme, one of the two sliding seats is fixedly connected to a limiting guide sleeve, and the other sliding seat is fixedly connected to a limiting guide block, the limiting guide block is slidably connected in the limiting guide sleeve, and the top end of the limiting guide sleeve is connected to a clamping plate by bolts.

[0013] Further on the basis of the above-mentioned scheme, the limiting reinforcement structure includes a transverse tube, on which two installation bent pipes are fixedly connected, and the two installation bent pipes are fixedly connected to the sheet metal frame, and the left and right ends of the transverse tube are fixedly connected with oblique bent pipes, and the bottom ends of the two oblique bent pipes are fixedly connected with support plates.

[0014] Further on the basis of the above scheme, a positioning hole is provided on the support plate, a limiting hole is provided on the upper support flange, and a through hole is provided on the upper reinforcing ridge, and the through hole and the limiting hole both match the positioning hole.

[0015] Further on the basis of the above scheme, the telescopic roller includes two side rollers, the two side rollers are connected by a core roller, and the two side rollers are rotatably connected to the two sliding seats respectively.

[0016] As a further improvement of the above scheme, auxiliary mounting protrusions are provided on both the upper reinforcing ridge and the lower reinforcing ridge, and the auxiliary mounting protrusions are provided with connecting auxiliary holes.

[0017] As a further improvement of the above solution, a rotation auxiliary handle is fixedly connected to one end of the sheet metal frame facing away from the electric winch.

[0018] As a further improvement of the above solution, the sheet metal frame is provided with a structural reinforcement flange.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides an air-compressed bumper assembly for an automobile, which has the following beneficial effects:

[0021] 1. In the present invention, the design of the sheet metal frame facilitates the support and installation of the electric winch, and the design of the main frame facilitates the relative installation of the winch mounting frame and the external plastic skin, while realizing the connection between the two relative to the vehicle frame, so that after the external plastic skin is assembled with the electric winch, the assembled electric winch causes less damage to the integrity of the external plastic skin, the external plastic skin has better structural integrity, the structural strength of the external plastic skin is guaranteed, and the use effect of the external plastic skin is stably maintained.

[0022] 2. In the present invention, the design of the limiting reinforcement structure facilitates the auxiliary support between the sheet metal frame and the main frame when the electric winch is in use, thereby facilitating the structural strength of the electric winch relative to the main frame and ensuring the stability of the position of the electric winch relative to the main frame when in use.

[0023] 3. In the present invention, the electric winch can be stored after use by rotating the mounting ear and the connecting shaft. After storage, the aesthetics of the external plastic skin is less affected, the storage operation and the display operation are relatively simple, and the operability is relatively strong. Through the design of the guide component, the electric winch can be easily guided for auxiliary guidance of the traction rope during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0026] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0027] Figure 4 It is a partially exploded three-dimensional structural schematic diagram of the cooperation of the sliding seat, the side roller and the core roller of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from above;

[0029] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C in the middle;

[0030] Figure 7 For the present invention Figure 5 A schematic diagram of the local enlarged structure at D in the middle;

[0031] Figure 8 It is a schematic three-dimensional structure diagram of another angle of partial decomposition of the cooperation of the sliding seat, side rollers and core rollers of the present invention.

[0032] In the figure: 1. electric winch; 2. frame; 3. external plastic skin; 4. sheet metal frame; 5. sheet metal installation area; 6. rotating installation ear; 7. traction rope; 8. connecting hook; 9. sheet metal connecting frame; 10. auxiliary frame; 11. connecting shaft; 12. upper support flange; 13. lower support flange; 14. upper reinforcing ridge; 15. lower reinforcing ridge; 16. sliding seat; 17. vertical roller; 18. elastic spring; 19. support flange ear; 20. limit guide sleeve; 21. limit guide block; 22. bolt; 23. clamping plate; 24. cross pipe; 25. installation elbow; 26. oblique elbow; 27. support sheet; 28. positioning hole; 29. ​​side roller; 30. core roller; 31. auxiliary installation protrusion; 32. connection auxiliary hole; 33. rotating auxiliary hand lever; 34. structural reinforcement flange. DETAILED DESCRIPTION

[0033] Example

[0034] See also Figure 1-8A pneumatic bumper assembly for a car includes an electric winch 1, a vehicle frame 2, an external plastic skin 3, a main frame and a winch mounting frame. The winch mounting frame includes a sheet metal frame 4, on which a sheet metal mounting area 5 and two rotating mounting ears 6 are provided. The design of the sheet metal frame 4 facilitates the support and installation of the electric winch 1. The electric winch 1 is installed on the sheet metal frame 4. A traction rope 7 is wound around the electric winch 1. A connecting hook 8 is fixedly connected to the rope head of the traction rope 7. A guide component is installed on the sheet metal mounting area 5. The guide component includes two sliding seats 16. The sheet metal mounting area 5 is provided with two sliding grooves. The two sliding seats 16 are respectively slidably matched in the two sliding grooves. The two sliding seats 16 are rotatably connected with vertical rollers 1 7. Two telescopic rollers are rotatably connected between the two sliding seats 16, and the telescopic rollers include two side rollers 29. The two side rollers 29 are connected by a core roller 30. The two side rollers 29 are rotatably connected to the two sliding seats 16 respectively. The ends of the two sliding seats 16 that are away from each other are fixedly connected with elastic springs 18. The sheet metal installation area 5 is provided with two supporting flange ears 19. The two supporting flange ears 19 are respectively connected with the two elastic springs 18. Through the design of the guide component, it is convenient for the electric winch 1 to realize auxiliary guidance of the traction rope 7 during use. One of the two sliding seats 16 is fixedly connected to a limited guide sleeve 20, and the other sliding seat 16 is fixedly connected to a limited guide block 21. The limited guide block 2 1 is slidably connected in the limiting guide sleeve 20, and the top of the limiting guide sleeve 20 is connected with a pressing plate 23 through a bolt 22, which is convenient for limiting the relative position between the two sliding seats 16. The guide assembly is used for guiding the traction rope 7. The two rotating mounting ears 6 are both provided with shaft holes. The end of the sheet metal frame 4 facing away from the electric winch 1 is fixedly connected with a rotating auxiliary hand lever 33, which is convenient for the auxiliary flipping and rotation of the sheet metal frame 4. The sheet metal frame 4 is provided with a structural reinforcement flange 34 to improve the structural strength of the sheet metal frame 4. The sheet metal frame 4 is installed with a limited reinforcement structure, and the limited reinforcement structure includes a transverse tube 24, and two installation elbows 25 are fixedly connected to the transverse tube 24. The two installation elbows 25 are both fixedly connected to the sheet metal frame 4, and the left and right ends of the transverse tube 24 Both are fixedly connected with an inclined bent pipe 26, and the bottom ends of the two inclined bent pipes 26 are fixedly connected with a support plate 27. Through the design of the limiting reinforcement structure, when the electric winch 1 is in use, auxiliary support between the sheet metal frame 4 and the main frame is achieved, thereby facilitating the structural strength of the electric winch 1 relative to the main frame, and ensuring the stability of the position of the electric winch 1 relative to the main frame when in use. A positioning hole 28 is provided on the support plate 27, a limiting hole is provided on the upper support flange 12, and a through hole is provided on the upper reinforcement ridge 14. The through hole and the limiting hole are matched with the positioning hole 28, and the positioning hole 28, the through hole and the limiting hole can be inserted into the positioning hole 28, the through hole and the limiting hole in sequence through an external pin shaft to achieve the connection and positioning of the support plate 27 relative to the upper support flange 12.

[0035] It should be further explained that the main frame includes two sheet metal connecting frames 9, the two sheet metal connecting frames 9 are connected to the frame 2, and the two sheet metal connecting frames 9 and the frame 2 are fixedly connected with auxiliary frames 10, and the two auxiliary frames 10 are fixedly connected with connecting shafts 11, and the two connecting shafts 11 are rotatably connected in two shaft holes respectively. By rotating the mounting ear 6 and the rotatable connection with the connecting shaft 11, the electric winch 1 can be stored after use, and the aesthetics of the external plastic skin 3 is less affected after storage, and the storage operation and exhibition operation are relatively simple, and the operability is strong. The top ends of the two sheet metal connecting frames 9 are fixedly connected with upper support flanges 12, and the bottom ends of the two sheet metal connecting frames 9 are fixedly connected with lower support flanges 13. Through the design of the main frame, it is convenient for the winch mounting frame and the external plastic skin 3 to be installed. They are installed relative to each other and simultaneously realize the connection between the two relative to the vehicle frame 2, so that after the external plastic skin 3 is assembled with the electric winch 1, the assembled electric winch 1 causes less damage to the integrity of the external plastic skin 3, and the structural integrity of the external plastic skin 3 is good, thereby ensuring the structural strength of the external plastic skin 3 and realizing the stable maintenance of the use effect of the external plastic skin 3. The top and bottom ends of the external plastic skin 3 are respectively provided with an upper reinforcing ridge 14 and a lower reinforcing ridge 15, the two upper supporting flanges 12 are connected to the upper reinforcing ridge 14, and the two lower supporting flanges 13 are connected to the lower reinforcing ridge 15, and auxiliary installation protrusions 31 are provided on the upper reinforcing ridge 14 and the lower reinforcing ridge 15, and the auxiliary installation protrusions 31 are provided with connection auxiliary holes 32, which are convenient for the connection and installation of the external plastic skin 3 with other parts of the automobile.

[0036] The electric winch 1 in this embodiment is a conventional device known to those skilled in the art and purchased on the market. It can also be customized according to actual needs. In this patent, we only use it and do not improve its structure and function. For the technicians in this field, the setting method, installation method and electrical connection method only need to be debugged and operated according to the requirements of its instruction manual, and will not be described in detail here.

[0037] In summary, the working process of the pneumatic bumper assembly for automobile is as follows: before use, the auxiliary handle 33 is rotated to move up, and the electric winch 1 is rotated into the space between the two sheet metal connecting frames 9, and the electric winch 1 is in a stored state. When in use, the sheet metal frame 4 is first rotated relative to the connecting shaft 11 by rotating the auxiliary handle 33, so that the sheet metal frame 4 is rotated 180 degrees. After the sheet metal frame 4 is rotated 180 degrees, the electric winch 1 is turned over and moved up, as shown in the attached figure. Figure 1 As shown, in this state, the support sheet 27 is in contact with the upper reinforcing ridge 14 and pressed on the upper supporting flange 12. After the adjustment is completed, the traction rope 7 can be loosened or wound and tightened by controlling the electric winch 1 to achieve the use of power traction. At the same time, the guide component can perform auxiliary guidance according to the use needs of the traction rope 7 to improve the winding effect of the traction rope 7.

Claims

1. A pneumatic bumper assembly for a vehicle, comprising an electric winch (1), characterized in that: It also includes a vehicle frame (2), an external plastic skin (3), a main frame and a winch mounting frame, wherein The winch mounting frame comprises a sheet metal frame (4), the sheet metal frame (4) is provided with a sheet metal mounting area (5) and two rotating mounting ears (6), the electric winch (1) is mounted on the sheet metal frame (4), a traction rope (7) is wound around the electric winch (1), a connecting hook (8) is fixedly connected to the rope head of the traction rope (7), a guide component is installed on the sheet metal mounting area (5), the guide component is used to guide the traction rope (7), the two rotating mounting ears (6) are both provided with shaft holes, and a limited position reinforcement structure is installed on the sheet metal frame (4), wherein The main frame comprises two sheet metal connecting frames (9), the two sheet metal connecting frames (9) are connected to the vehicle frame (2), and an auxiliary frame (10) is fixedly connected between the two sheet metal connecting frames (9) and the vehicle frame (2), the two auxiliary frames (10) are fixedly connected to a connecting shaft (11), and the two connecting shafts (11) are rotatably connected in the two shaft holes respectively, the top ends of the two sheet metal connecting frames (9) are fixedly connected to an upper supporting flange (12), and the bottom ends of the two sheet metal connecting frames (9) are fixedly connected to a lower supporting flange (13), wherein The top and bottom ends of the outer plastic skin (3) are respectively provided with an upper reinforcing ridge (14) and a lower reinforcing ridge (15), the two upper supporting flanges (12) are connected to the upper reinforcing ridge (14), and the two lower supporting flanges (13) are connected to the lower reinforcing ridge (15), wherein The guide assembly comprises two sliding seats (16), the sheet metal installation area (5) is provided with two sliding grooves, the two sliding seats (16) are respectively slidably fitted in the two sliding grooves, the two sliding seats (16) are rotatably connected with vertical rollers (17), two telescopic rollers are rotatably connected between the two sliding seats (16), the ends of the two sliding seats (16) that are away from each other are fixedly connected with elastic springs (18), the sheet metal installation area (5) is provided with two supporting flange ears (19), and the two supporting flange ears (19) are respectively connected to the two elastic springs (18), wherein A limiting guide sleeve (20) is fixedly connected to one of the two sliding seats (16), and a limiting guide block (21) is fixedly connected to the other sliding seat (16). The limiting guide block (21) is slidably connected in the limiting guide sleeve (20). The top end of the limiting guide sleeve (20) is connected to a pressing plate (23) via a bolt (22). The position limiting reinforcement structure comprises a transverse tube (24), two installation bent tubes (25) are fixedly connected to the transverse tube (24), the two installation bent tubes (25) are fixedly connected to the sheet metal frame (4), the left and right ends of the transverse tube (24) are fixedly connected to oblique bent tubes (26), and the bottom ends of the two oblique bent tubes (26) are fixedly connected to support plates (27).

2. The air-compressed bumper assembly for automobile according to claim 1, characterized in that: The support sheet (27) is provided with a positioning hole (28), the upper support flange (12) is provided with a limiting hole, and the upper reinforcing ridge is provided with a through hole, and both the through hole and the limiting hole match the positioning hole (28).

3. The air-compressed bumper assembly for automobile according to claim 2, characterized in that: The telescopic roller comprises two side rollers (29), the two side rollers (29) are connected via a core roller (30), and the two side rollers (29) are rotationally connected to the two sliding seats (16) respectively.

4. The air-compressed bumper assembly for automobile according to claim 3, characterized in that: Auxiliary mounting protrusions (31) are provided on the upper reinforcing ridge (14) and the lower reinforcing ridge (15), and auxiliary connection holes (32) are provided on the auxiliary mounting protrusions (31).

5. The air-compressed bumper assembly for automobile according to claim 4, characterized in that: One end of the sheet metal frame (4) facing away from the electric winch (1) is fixedly connected to a rotation auxiliary handle (33).

6. The pneumatic bumper assembly for automobile according to claim 5, characterized in that: The sheet metal frame (4) is provided with a structural reinforcement flange (34).

Images