Position-adjustable towing hook assembly for special vehicle

Abstract

The utility model relates to a position-adjustable towing hook assembly for a special vehicle, which comprises a fixed seat fixed at the bottom of the special vehicle, a lead screw seat is mounted on the back of the fixed seat, a lead screw is inserted into the lead screw seat, a movable plate is slidably connected into the fixed seat, a lead screw nut matched with the lead screw is arranged on the back of the movable plate, and the lead screw nut is connected with the lead screw. A guide shaft is arranged on the front face of the fixed seat, a towing hook seat is slidably connected to the guide shaft in a sleeved mode, a towing hook body is fixedly connected to the free end of the towing hook seat, a limiting pin shaft is arranged on the side, facing the movable plate, of the towing hook seat, a chute is formed in the movable plate, and the limiting pin shaft is located in the chute. According to the towing hook assembly, the connecting position of the towing hook in the whole towing hook assembly can be adjusted in the width direction of a vehicle body, the position of the towing hook on the towing hook assembly can be correspondingly moved according to the position of the towing hook for dragging an object, and the towing hook assembly is suitable for industrial production and has high practicability.

Description

Technical Field

[0001] This utility model belongs to the technical field of tow hook assemblies for special vehicles, and particularly relates to a tow hook assembly for special vehicles with adjustable position. Background Technology

[0002] A patent titled "Towing Hook and Towing Assembly for Vehicle Towing" is disclosed in the existing Chinese patent database. The application number is CN202020283113.8, and the application date is March 10, 2020. The towing hook for vehicle towing includes: a laterally extending crossbeam; a locking pin having two ends opposite to each other along a vertical axis of rotation; a pin seat including a crossbeam connecting portion and two branches extending from the crossbeam connecting portion, the crossbeam connecting portion being connected to the crossbeam, and the branches being respectively connected to the two ends of the locking pin; and at least two towing hook revolute pairs arranged distal to the pin seat, each having a coaxial lateral pivot axis. Each towing hook revolute pair consists of a pivot seat and a pivot member pivotable relative to the pivot seat about the pivot axis, the pivot members being connected by the crossbeam. A towing assembly for vehicle towing is also disclosed.

[0003] In existing technologies, tow hooks are mostly fixed in the middle of the rear of the vehicle, making it impossible to adjust the position of the tow hook connection point. This paper aims to propose a special vehicle tow hook assembly with adjustable position, which can move the position of the tow hook on the tow hook assembly according to the position of the towed item, making it easier to connect with the towed item. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to overcome the limitation of the non-adjustable position of the tow hook in the prior art, so as to facilitate the corresponding movement of the position of the tow hook on the tow hook assembly according to the position of the tow hook of the towed item. In order to improve its shortcomings, this utility model provides a special vehicle tow hook assembly with adjustable position.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An adjustable tow hook assembly for special vehicles includes a fixed base fixed to the bottom of the special vehicle. A lead screw seat is mounted on the back of the fixed base, and a lead screw is inserted into the lead screw seat. A movable plate is slidably connected inside the fixed base. A lead screw nut that mates with the lead screw is provided on the back of the movable plate. A guide shaft is provided on the front of the fixed base, and the axis of the guide shaft is perpendicular to the sliding direction of the movable plate. A tow hook seat is slidably sleeved on the guide shaft. A tow hook body is fixedly connected to the free end of the tow hook seat. A limit pin is provided on the side of the tow hook seat facing the movable plate. An inclined groove is provided on the movable plate, and the limit pin is located in the inclined groove. A drive device is connected to the free end of the lead screw.

[0007] Compared with the prior art, the beneficial effects of this utility model are: due to the adjustable setting of the tow hook seat, the connection position of the tow hook in the entire tow hook assembly can be adjusted in the width direction of the vehicle body, which makes it convenient to move the position of the tow hook on the tow hook assembly according to the position of the tow hook of the towed item. This device is suitable for industrial production and has strong practicality.

[0008] As a preferred embodiment, the fixed base is provided with a guide rail, and the back of the movable plate is fixed with a slider, which is slidably connected to the guide rail.

[0009] As a preferred embodiment, the fixed base is provided with a waist-shaped groove, and the lead screw nut is slidably inserted into the waist-shaped groove, with the length direction of the waist-shaped groove being consistent with the sliding direction of the moving plate.

[0010] As a preferred embodiment, the drive device includes a motor mounting bracket fixed to the bottom of the special vehicle, and a drive motor is connected to the motor mounting bracket.

[0011] As a preferred embodiment, the mounting base includes a vertical plate that is perpendicular to the bottom of the special vehicle, and the two vertical plates are integrally connected by a horizontal plate. The free end of the vertical plate is integrally provided with a connecting flange, and the connecting flange is fixedly connected to the bottom of the special vehicle. Attached Figure Description

[0012] Figure 1 This is a front structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the fixed base in this utility model.

[0014] In the diagram: 1. Fixed base, 101. Vertical plate, 102. Horizontal plate, 103. Connecting flange, 2. Lead screw seat, 3. Lead screw, 4. Moving plate, 5. Lead screw nut, 6. Guide shaft, 7. Hook seat, 8. Hook body, 9. Limit pin, 10. Inclined groove, 11. Guide slide rail, 12. Waist-shaped groove, 13. Motor mounting base, 14. Drive motor. Detailed Implementation

[0015] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1-2The image shows an adjustable tow hook assembly for special vehicles, comprising a fixed base 1 fixed to the bottom of the special vehicle, a lead screw seat 2 mounted on the back of the fixed base 1, a lead screw 3 inserted inside the lead screw seat 2, a movable plate 4 slidably connected inside the fixed base 1, a lead screw nut 5 cooperating with the lead screw 3 on the back of the movable plate 4, a guide shaft 6 on the front of the fixed base 1, the axis of the guide shaft 6 being perpendicular to the sliding direction of the movable plate 4, a tow hook seat 7 slidably sleeved on the guide shaft 6, a tow hook body 8 fixedly connected to the free end of the tow hook seat 7, a limit pin 9 on the side of the tow hook seat 7 facing the movable plate 4, a groove 10 on the movable plate 4, the limit pin 9 being located within the groove 10, and a drive device connected to the free end of the lead screw 3. A guide rail 11 is provided inside the fixed base 1, and a slider is fixed to the back of the movable plate 4, the slider being slidably connected to the guide rail 11. The fixed base 1 has a waist-shaped groove 12, and the lead screw nut 5 is slidably inserted into the waist-shaped groove 12. The length direction of the waist-shaped groove 12 is consistent with the sliding direction of the moving plate 4. The driving device includes a motor mounting base 13 fixed to the bottom of the special vehicle, and a drive motor 14 is connected to the motor mounting base 13. The fixed base 1 includes a vertical plate 101 set perpendicular to the bottom of the special vehicle. The two vertical plates 101 are integrally connected by a horizontal plate 102. The free end of the vertical plate 101 is integrally provided with a connecting flange 103, which is fixedly connected to the bottom of the special vehicle.

[0017] During operation, the operator controls the drive motor 14 to rotate the lead screw 3. When the lead screw 3 rotates and moves the lead screw nut 5 upward, the moving plate 4 moves upward synchronously with the lead screw nut 5. Due to the cooperation between the inclined groove 10 and the limit pin 9, the two tow hook seats 7 move towards each other along the direction of the guide shaft 6, thereby reducing the distance between the two tow hook seats 7. When the lead screw 3 rotates and moves the lead screw nut 5 downward, the moving plate 4 moves downward synchronously with the lead screw nut 5, causing the two tow hook seats 7 to move away from each other along the direction of the guide shaft 6, thereby increasing the distance between the two tow hook seats 7. This adapts to the position of the tow hook in towing items of different specifications. At the same time, it makes the force-bearing point of the tow hook seat 7 linearly set with the force-bearing point of the tow hook of the item to be towed, and the direction of this linearity is consistent with the direction of vehicle travel, which can prevent the tow hook seat 7 from bearing forces in other directions, making it more secure.

[0018] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A position-adjustable special vehicle tow hook assembly, characterized in that: The system includes a fixed base (1) fixed to the bottom of a special vehicle, a screw seat (2) mounted on the back of the fixed base (1), a screw rod (3) inserted in the screw seat (2), a movable plate (4) slidably connected in the fixed base (1), a screw nut (5) cooperating with the screw rod (3) on the back of the movable plate (4), a guide shaft (6) on the front of the fixed base (1), the axis of the guide shaft (6) being perpendicular to the sliding direction of the movable plate (4), a tow hook seat (7) slidably sleeved on the guide shaft (6), a tow hook body (8) fixedly connected to the free end of the tow hook seat (7), a limiting pin (9) on the side of the tow hook seat (7) facing the movable plate (4), a slanted groove (10) on the movable plate (4), the limiting pin (9) being located in the slanted groove (10), and a drive device connected to the free end of the screw rod (3).

2. The position-adjustable special vehicle tow hook assembly according to claim 1, characterized in that: The fixed base (1) is provided with a guide rail (11), and the back of the movable plate (4) is fixed with a slider, which is slidably connected to the guide rail (11).

3. The position-adjustable special vehicle tow hook assembly according to claim 2, characterized in that: The fixed seat (1) is provided with a waist-shaped groove (12), and the lead screw nut (5) is slidably inserted in the waist-shaped groove (12). The length direction of the waist-shaped groove (12) is consistent with the sliding direction of the moving plate (4).

4. The position-adjustable special vehicle tow hook assembly according to claim 3, characterized in that: The drive device includes a motor mounting base (13) fixed to the bottom of the special vehicle, and a drive motor (14) is connected to the motor mounting base (13).

5. A position-adjustable special vehicle tow hook assembly according to any one of claims 1-4, characterized in that: The fixed base (1) includes a vertical plate (101) set perpendicular to the bottom of the special vehicle. The two vertical plates (101) are integrally connected by a horizontal plate (102). The free end of the vertical plate (101) is integrally provided with a connecting flange (103), which is fixedly connected to the bottom of the special vehicle.

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