Rear tow hook square opening seat, rear tow hook assembly and automobile

Abstract

The utility model discloses a rear tow hook square opening seat, a rear tow hook assembly and an automobile, and belongs to the technical field of automobiles. The problem that in the prior art, a rear trailer hook square opening seat affects the departure angle of a whole vehicle is solved. The device mainly comprises an installation support, a guide plate is installed at the bottom of the installation support, a guide hole is formed in the guide plate, a square opening pipe is installed in the guide hole in a sliding mode, an outer plug pin hole is formed in the rear side of the square opening pipe, a locking threaded hole is formed in the guide plate, and a locking bolt is inserted into the locking threaded hole. A front limiting plate and a rear limiting plate are installed on the front side and the rear side of the outer wall of the square opening pipe correspondingly.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to a rear trailer hitch square seat, a rear trailer hitch assembly, and an automobile. Background Technology

[0002] The rear trailer hitch square bracket is used to fix the rear trailer hitch to the vehicle. Currently, in order to improve product competitiveness, many off-road vehicle manufacturers with trailer qualifications equip their vehicles with the rear trailer hitch square bracket as standard after leaving the factory. However, due to the needs of vehicle layout and styling, the rear trailer hitch square bracket is located below the rear bumper, which often reduces the departure angle of the vehicle and thus affects the vehicle's passability. Summary of the Invention

[0003] The purpose of this utility model is to provide a rear trailer hitch square bracket, a rear trailer hitch assembly, and an automobile, so as to overcome the problem that the rear trailer hitch square bracket affects the departure angle of the entire vehicle in the prior art.

[0004] This utility model is achieved by the following technical solution: a square-mouth seat for a rear trailer hook, including a mounting bracket, a guide plate installed at the bottom of the mounting bracket, a guide hole provided on the guide plate, a square tube slidably installed in the guide hole, an external pin hole opened on the rear side of the square tube, a locking thread hole opened on the guide plate, a locking bolt inserted into the locking thread hole, and a front limiting plate and a rear limiting plate respectively installed on the front and rear sides of the outer wall of the square tube.

[0005] Furthermore, the guide hole has a square structure.

[0006] Furthermore, the locking threaded hole is located at the bottom of the guide plate.

[0007] Furthermore, the guide plate is U-shaped, with flanges extending outward from both ends, and the flanges on both sides are fixedly connected to the bottom of the mounting bracket.

[0008] Furthermore, the flange is fixedly connected to the bottom of the mounting bracket by bolts and nuts.

[0009] Furthermore, the mounting bracket includes a base plate, on both sides of which are respectively mounted upwardly extending fixing plates, and multiple fixing holes are symmetrically opened on the fixing plates on both sides.

[0010] Furthermore, the guide plate has an inclined opening on the lower side of its rear end.

[0011] Furthermore, the rear end of the guide plate is provided with an arc-shaped limiting groove.

[0012] A rear trailer hitch assembly includes a trailer hitch assembly and the aforementioned rear trailer hitch square-mouth seat. The trailer hitch assembly includes a connecting pipe, the rear end of which is fixedly connected to a trailer hitch mounting seat. A trailer hitch is mounted on the trailer hitch mounting seat. The front end of the connecting pipe has an inner pin hole, and the front end of the connecting pipe is inserted into the inner cavity of the square-mouth tube. A pin is inserted into both the outer pin hole and the inner pin hole.

[0013] An automobile includes a frame and the aforementioned rear tow hook square bracket, the frame including a rear crossbeam, and the mounting bracket being fixedly mounted on the rear crossbeam.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When not towing, this invention can minimize the impact of the square tube on the vehicle's departure angle by pushing it into the guide plate, and effectively solves the problem of the square tube seat of the rear trailer hook affecting the vehicle's departure angle in the prior art. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the square-mouth seat for the rear trailer hook described in this utility model;

[0017] Figure 2 and Figure 3 These are schematic diagrams showing the outer pin hole in the square tube of this utility model sliding into the guide hole;

[0018] Figure 4 This is a schematic diagram of the rear trailer hitch assembly described in this utility model;

[0019] Figure 5 This is a schematic diagram of the rear trailer hook square bracket of this utility model being installed on the rear crossbeam.

[0020] In the diagram: 1. Mounting bracket; 2. Guide plate; 3. Guide hole; 4. Square tube; 5. External pin hole; 6. Locking threaded hole; 7. Locking bolt; 8. Front limit plate; 9. Rear limit plate; 10. Flanged edge; 11. Base plate; 12. Fixing plate; 13. Fixing hole; 14. Opening; 15. Connecting pipe; 16. Trailer hook mounting seat; 17. Trailer hook; 18. Pin; 19. Frame; 20. Rear crossbeam; 21. Limiting groove. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0022] A square-mouth rear trailer hook seat includes a mounting bracket 1. The mounting bracket 1 includes a base plate 11, and two upwardly extending fixing plates 12 are respectively mounted on both sides of the base plate 11. Multiple fixing holes 13 are symmetrically formed on the fixing plates 12 on both sides. When installing the square-mouth rear trailer hook seat of this invention, the two fixing plates 12 are placed on both sides of the rear crossbeam 20 of the vehicle frame 19. The rear crossbeam 20 has through holes that mate with the fixing holes 13 on the fixing plates 12, and the through holes correspond one-to-one with the fixing holes 13 on the fixing plates 12. During fixing, bolts are passed through the fixing holes 13 on the two fixing plates 12 and the through holes on the rear crossbeam 20, and nuts are tightened on the bolts.

[0023] A guide plate 2 is mounted on the bottom of the mounting bracket 1. The guide plate 2 has guide holes 3, which are square in shape. The guide plate 2 is U-shaped, and both ends of the guide plate 2 have outward flanges 10. The flanges 10 are fixedly connected to the bottom of the mounting bracket 1. The flanges 10 are fixedly connected to the bottom of the mounting bracket 1 by bolts and nuts.

[0024] The mounting bracket 1 has a bracket through hole on its base plate 11. A base plate 11 nut is welded to the base plate 11 through hole. The flange 10 has a flange 10 through hole that matches the bracket through hole. The bolt passes through the flange 10 through hole and the base plate 11 through hole and is threadedly engaged with the base plate 11 nut.

[0025] The guide plate 2 has an inclined opening 14 on the lower side of its rear end. The opening 14 is inclined downward in the direction from back to front. By setting the inclined opening 14, this utility model can minimize the impact of the guide plate 2 on the departure angle of the whole vehicle when it is not being towed.

[0026] The rear end of the guide plate 2 is provided with an arc-shaped limiting groove 21. The limiting groove 21 of this utility model cooperates with the outer pin hole 5 of the square tube 4. When the square tube 4 extends backward to its maximum length from the guide plate 2, the limiting groove 21 will be aligned with the outer pin hole 5 of the square tube 4. When the connecting tube 15 is inserted into the square tube 4, and the pin 18 is inserted into the outer pin hole 5 and the inner pin hole, the pin 18 will also be in the limiting groove 21. At this time, the limiting groove 21 can limit the square tube 4 and the connecting tube 15 through the pin 18, restricting the square tube 4 and the connecting tube 15 from moving forward within the guide plate 2.

[0027] A square tube 4 is slidably installed inside the guide hole 3. An external pin hole 5 is provided on the rear side of the square tube 4. The external pin hole 5 on the square tube 4 is used to connect with the connecting tube 15.

[0028] The guide plate 2 has a locking threaded hole 6, into which a locking bolt 7 is inserted. The locking threaded hole 6 is located at the bottom of the guide plate 2. In this invention, a through hole is provided at the bottom of the guide plate 2, and a nut is welded to the lower side of this through hole. The threaded hole in this nut forms the locking threaded hole 6. The locking bolt 7 rotates in the locking threaded hole 6, causing it to press against the bottom of the square tube 4, thereby limiting the shaking of the square tube 4.

[0029] A front limiting plate 8 and a rear limiting plate 9 are respectively installed on the front and rear sides of the outer wall of the square tube 4. By setting the front limiting plate 8 and the rear limiting plate 9, this utility model can restrict the square tube 4 from moving backward and forward in the guide hole 3, respectively.

[0030] This utility model, by setting a guide plate 2 and slidingly installing a square tube 4 in the guide hole 3 of the guide plate 2, allows adjustment of the length of the square tube 4 extending backward from the guide hole 3. When towing is required, we pull the square tube 4 backward until the front limit plate 8 on the front side contacts the guide plate 2. When towing is not required, we push the square tube 4 forward until the rear limit plate 9 contacts the guide plate 2. At this time, since the square tube 4 is pushed into the guide plate 2, the square tube 4 will not reduce the departure angle of the entire vehicle when towing is not required.

[0031] A rear trailer hitch assembly includes a trailer hitch assembly and the aforementioned rear trailer hitch square-mouth seat. The trailer hitch assembly includes a connecting pipe 15, the rear end of which is fixedly connected to a trailer hitch mounting seat 16. A trailer hitch 17 is mounted on the trailer hitch mounting seat 16. The front end of the connecting pipe 15 has an inner pin hole. The front end of the connecting pipe 15 is inserted into the inner cavity of the square-mouth tube 4, and a pin 18 is inserted into both the outer pin hole 5 and the inner pin hole. One end of the pin shaft can be inserted into an opening 14 pin.

[0032] An automobile includes a frame 19 and the aforementioned rear trailer hitch square bracket, the frame 19 including a rear crossbeam 20, and the mounting bracket 1 being fixedly mounted on the rear crossbeam 20.

Claims

1. A rear trailer hitch square socket, characterized in that, Including installation support (1), the bottom of installation support (1) installs guide plate (2), is equipped with guide hole (3) on guide plate (2), the sliding installation of guide hole (3) is equipped with square tube (4), the rear side of square tube (4) is equipped with outer bolt hole (5), the locking threaded hole (6) is set up on guide plate (2), locking threaded hole (6) inserts locking bolt (7), the outer wall of square tube (4) is installed front limit board (8) and rear limit board (9) respectively on both sides.

2. The rear trailer hitch square socket of claim 1, wherein, The guide hole (3) is square structure.

3. The rear trailer hitch square socket of claim 2, wherein, The locking threaded hole (6) is set up in the bottom of guide plate (2).

4. The rear trailer hitch square socket of claim 1, wherein, The guide plate (2) is U-shaped, and the two ends of the guide plate (2) are respectively provided with flanges (10) outwardly.

5. The rear trailer hitch square socket of claim 4, wherein, The flange (10) is fixedly connected with the bottom of the installation support (1) by bolts and nuts.

6. The rear trailer hitch square socket of claim 1, wherein, The installation support (1) comprises a bottom plate (11), and upwardly protruding fixing plates (12) are mounted on both sides of the bottom plate (11).

7. The rear trailer hitch square socket of claim 1, wherein, The lower side of the rear end of the guide plate (2) is provided with an opening (14) arranged obliquely.

8. The rear trailer hitch square socket of claim 1, wherein, The rear end of the guide plate (2) is provided with an arc-shaped limiting groove (21).

9. A rear trailer hitch assembly characterized by, The trailer hook assembly comprises a connecting pipe (15), the rear end of the connecting pipe (15) is fixedly connected with a trailer hook mounting seat (16), the trailer hook mounting seat (16) is provided with a trailer hook (17), the front end of the connecting pipe (15) is provided with an inner bolt hole, the front end of the connecting pipe (15) is inserted into the inner cavity of the square tube (4), and the outer bolt hole (5) and the inner bolt hole are inserted with a bolt (18).

10. An automobile characterized by comprising: The trailer hook assembly comprises a connecting pipe (15), the rear end of the connecting pipe (15) is fixedly connected with a trailer hook mounting seat (16), the trailer hook mounting seat (16) is provided with a trailer hook (17), the front end of the connecting pipe (15) is provided with an inner bolt hole, the front end of the connecting pipe (15) is inserted into the inner cavity of the square tube (4), and the outer bolt hole (5) and the inner bolt hole are inserted with a bolt (18). The trailer hook assembly comprises a connecting pipe (15), the rear end of the connecting pipe (15) is fixedly connected with a trailer hook mounting seat (16), the trailer hook mounting seat (16) is provided with a trailer hook (17), the front end of the connecting pipe (15) is provided with an inner bolt hole, the front end of the connecting pipe (15) is inserted into the inner cavity of the square tube (4), and the outer bolt hole (5) and the inner bolt hole are inserted with a bolt (18).

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