A trailer hook with anti-fracture protection function

Abstract

The utility model discloses a trailer hook with an anti-fracture protection function, and relates to the technical field of trailer hooks. The utility model comprises a protective plate, a mounting seat is fixedly connected to the side of the protective plate, and the trailer hook is fixedly connected to the side of the mounting seat; a protective device is arranged on the side of the protective plate, and the protective device comprises a fixing plate, a telescopic rod is fixedly connected to the side of the fixing plate, a mounting block is fixedly connected to the telescopic end of the telescopic rod, and a positioning block is penetrated on the top of the mounting block. The utility model cooperates with the telescopic rod, damper, spring and other components in the protective device by the tension generated when the trailer hook is working, so that the spring offsets the effect of the vibration force by generating a reaction force opposite to the vibration direction, thereby achieving the effect of protecting the trailer hook, and preventing the trailer hook from being broken due to excessive tension, thereby improving the safety during use.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailer hooks, in particular to a trailer hook with an anti-fracture protection function. Background Art

[0002] The function of traditional automobile trailer hooks only relies on the rigid connection between the thread and the threaded sleeve to ensure the reliability of trailer behavior. However, in special circumstances, such as when the towed beam is starting, due to the effect of the towing rope, the towed beam needs to maintain a certain speed with the towing vehicle instantly when the speed is zero, thereby generating a large acceleration. At this time, the force borne by the trailer hook is also the greatest, which can easily cause breakage.

[0003] According to a disclosed trailer hook structure (Announcement No.: CN216610764U), it includes a base, fixed wings, mounting holes, long hooks, fixed blocks and cross bolts. Fixed wings are fixedly installed on both sides of the base, the long hooks are installed corresponding to the mounting holes, the mounting holes and the fixed blocks are both fixedly installed on the base, and the cross bolts are snap-connected with the fixed blocks. However, in the above device, the mounting holes, long hooks, fixed blocks, cross bolts and other components cooperate with each other, and it is difficult to achieve the effect of protecting the trailer hook, and it is difficult to prevent the trailer hook from breaking due to excessive pulling force, thereby reducing the safety during use, and there is room for improvement. Utility Model Content

[0004] The utility model aims to provide a trailer hook with an anti-fracture protection function, in which the tension generated when the trailer hook is working to squeeze the force of the positioning block and the mounting block cooperates with the components such as the telescopic rod, the damper and the spring in the protective device, so that the spring can offset the effect of the vibration force by generating a reaction force opposite to the vibration direction, thereby solving the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a trailer hook with an anti-fracture protection function, comprising a protective plate, a mounting seat is fixedly connected to the side of the protective plate, and a trailer hook is fixedly connected to the side of the mounting seat;

[0007] A protective device is provided on the side of the protective plate, and the protective device includes a fixing plate, a telescopic rod is fixedly connected to the side of the fixing plate, a mounting block is fixedly connected to the telescopic end of the telescopic rod, a positioning block passes through the top of the mounting block, a damper is fixedly connected to the bottom of the positioning block, and one end of the damper away from the positioning block is fixedly connected to the side of the fixing plate.

[0008] Furthermore, a spring is fixedly connected to the side of the fixing plate, and one end of the spring away from the fixing plate is fixedly connected to the side of the mounting block. The initial state of the spring is a relaxed state, which can prevent the trailer hook from breaking due to excessive pulling force, thereby improving safety during use.

[0009] Furthermore, a mounting plate is fixedly connected to the side of the fixing plate, an electric telescopic rod is fixedly connected to the side of the mounting plate, a positioning plate is fixedly connected to the telescopic end of the electric telescopic rod, and a fixing block is fixedly connected to the side of the mounting block, thereby extending the service life of the trailer hook, reducing the frequency of repair and replacement, and reducing maintenance costs.

[0010] Furthermore, a switch is provided on the side of the electric telescopic rod, and the control end of the switch is located on the movement track of the fixed block. The number of the mounting plates is set to two, and they are symmetrical to each other along the vertical center axis of the fixed plates, so that the trailer hook is more stable during transportation and reduces damage to the vehicle and the trailer hook caused by vibration.

[0011] Furthermore, the number of the electric telescopic rods is set to two, and they are symmetrical to each other along the vertical center axis of the fixing plate. The opening of the positioning plate can effectively reduce the pressure on the stressed part and prevent the trailer hook from breaking, thereby improving the safety of the trailer hook.

[0012] Furthermore, a return spring is fixedly connected to the side of the mounting block, and one end of the return spring away from the mounting block is fixedly connected to the side of the fixing plate, which helps to extend the service life of the trailer hook, reduce the frequency of repair and replacement, and reduce maintenance costs.

[0013] Furthermore, the initial state of the return spring is a relaxed state, and the number of the telescopic rods is set to two, which are symmetrical with each other along the vertical center axis of the fixed plate, so that the protection function can be automatically activated when needed without manual intervention, thereby improving the convenience and efficiency of operation.

[0014] The utility model has the following beneficial effects:

[0015] The utility model realizes that the tension generated when the trailer hook is working squeezes the force of the positioning block and the mounting block and cooperates with the components such as the telescopic rod, the damper and the spring in the protective device, so that the spring offsets the effect of the vibration force by generating a reaction force opposite to the vibration direction, thereby achieving the effect of protecting the trailer hook, and can prevent the trailer hook from breaking due to excessive tension, thereby improving safety during use.

[0016] The utility model realizes that the force of the fixing block driven by the displacement of the installation block cooperates with the positioning plate, the fixing block and the switch in the protection device, so that the electric telescopic rod pushes the positioning plate to move, and when the trailer hook is working, the positioning plate opens to protect the trailer hook, which can effectively reduce the pressure on the stress-bearing part and prevent the trailer hook from breaking, thereby improving the safety of the trailer hook.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0020] Figure 2 It is a three-dimensional side view structural diagram of the trailer hook of the utility model;

[0021] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the spring of the utility model;

[0022] Figure 4 It is a three-dimensional side view structural schematic diagram of the positioning plate of the utility model;

[0023] Figure 5 For the utility model Figure 1 Schematic diagram of the three-dimensional enlarged structure of A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 101. Protective plate; 102. Mounting seat; 103. Trailer hook; 2. Protective device; 201. Fixing plate; 202. Telescopic rod; 203. Spring; 204. Mounting block; 205. Damper; 206. Return spring; 207. Positioning block; 208. Mounting plate; 209. Electric telescopic rod; 210. Positioning plate; 211. Fixing block; 212. Switch. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model is a trailer hook with anti-fracture protection function, comprising a protective plate 101, a mounting seat 102 is fixedly connected to the side of the protective plate 101, and a trailer hook 103 is fixedly connected to the side of the mounting seat 102;

[0028] A protective device 2 is provided on the side of the protective plate 101, and the protective device 2 includes a fixed plate 201, a telescopic rod 202 is fixedly connected to the side of the fixed plate 201, the telescopic end of the telescopic rod 202 is fixedly connected to a mounting block 204, a positioning block 207 passes through the top of the mounting block 204, a damper 205 is fixedly connected to the bottom of the positioning block 207, and the end of the damper 205 away from the positioning block 207 is fixedly connected to the side of the fixed plate 201.

[0029] A spring 203 is fixedly connected to the side of the fixing plate 201, and one end of the spring 203 away from the fixing plate 201 is fixedly connected to the side of the mounting block 204. The initial state of the spring 203 is a relaxed state, which can prevent the trailer hook 103 from breaking due to excessive tension, thereby improving safety during use.

[0030] The side of the fixing plate 201 is fixedly connected to a mounting plate 208, the side of the mounting plate 208 is fixedly connected to an electric telescopic rod 209, the telescopic end of the electric telescopic rod 209 is fixedly connected to a positioning plate 210, and the side of the mounting block 204 is fixedly connected to a fixing block 211, which extends the service life of the trailer hook 103, reduces the frequency of repair and replacement, and reduces maintenance costs.

[0031] A switch 212 is provided on the side of the electric telescopic rod 209, and the control end of the switch 212 is located on the movement track of the fixed block 211. The number of mounting plates 208 is set to two, and they are symmetrical to each other along the vertical center axis of the fixed plate 201, so that the trailer hook 103 is more stable during transportation and reduces the damage to the vehicle and the trailer hook 103 caused by vibration.

[0032] The number of the electric telescopic rods 209 is set to two, and they are symmetrical to each other along the vertical center axis of the fixing plate 201. The opening of the positioning plate 210 can effectively reduce the pressure on the stressed part and prevent the trailer hook 103 from breaking, thereby improving the safety of the trailer hook 103.

[0033] A return spring 206 is fixedly connected to the side of the mounting block 204, and one end of the return spring 206 away from the mounting block 204 is fixedly connected to the side of the fixing plate 201, which helps to extend the service life of the trailer hook 103, reduce the frequency of repair and replacement, and reduce maintenance costs.

[0034] The initial state of the return spring 206 is a relaxed state. The number of telescopic rods 202 is set to two, and they are symmetrical to each other along the vertical center axis of the fixed plate 201, so that the protection function can be automatically activated when needed without manual intervention, thereby improving the convenience and efficiency of operation.

[0035] A specific application of this embodiment is: this application uses the pulling force generated when the trailer hook 103 is working to squeeze the positioning block 207 and the mounting block 204, so that the mounting block 204 is displaced downward, and then the mounting block 204 is displaced downward to squeeze the telescopic rod 202, and the mounting block 204 is reset by the elastic force of the spring 203, and the spring 203 is compressed to convert the vibration energy into elastic potential energy. The spring 203 offsets the vibration force by generating a reaction force opposite to the vibration direction, thereby protecting the trailer hook 103. The displacement of the mounting block 204 drives the fixed block 211 to move, and then the fixed block 211 is displaced to squeeze the switch 212. The switch 212 controls the electric telescopic rod 209, and the electric telescopic rod 209 pushes the positioning plate 210 to move, thereby realizing that when the trailer hook 103 is working, the positioning plate 210 is opened to protect the trailer hook 103.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A trailer hook with anti-fracture protection function, comprising a protective plate (101), characterized in that: A mounting seat (102) is fixedly connected to a side of the protection plate (101), and a trailer hook (103) is fixedly connected to a side of the mounting seat (102); A protective device (2) is provided on the side of the protective plate (101), and the protective device (2) comprises a fixing plate (201), a telescopic rod (202) is fixedly connected to the side of the fixing plate (201), a mounting block (204) is fixedly connected to the telescopic end of the telescopic rod (202), a positioning block (207) passes through the top of the mounting block (204), a damper (205) is fixedly connected to the bottom of the positioning block (207), and an end of the damper (205) away from the positioning block (207) is fixedly connected to the side of the fixing plate (201).

2. A trailer hook with anti-fracture protection function according to claim 1, characterized in that: A spring (203) is fixedly connected to the side of the fixing plate (201); one end of the spring (203) away from the fixing plate (201) is fixedly connected to the side of the mounting block (204); and the initial state of the spring (203) is a relaxed state.

3. A trailer hook with anti-fracture protection function according to claim 2, characterized in that: The side of the fixing plate (201) is fixedly connected to a mounting plate (208), the side of the mounting plate (208) is fixedly connected to an electric telescopic rod (209), the telescopic end of the electric telescopic rod (209) is fixedly connected to a positioning plate (210), and the side of the mounting block (204) is fixedly connected to a fixing block (211).

4. The trailer hook with anti-fracture protection function according to claim 3, characterized in that: A switch (212) is provided on the side of the electric telescopic rod (209), and a control end of the switch (212) is located on the movement track of the fixed block (211). The number of the mounting plates (208) is set to two, and they are symmetrical to each other along the vertical center axis of the fixed plate (201).

5. The trailer hook with anti-fracture protection function according to claim 4, characterized in that: The number of the electric telescopic rods (209) is set to two, and they are symmetrical to each other along the vertical center axis of the fixed plate (201).

6. The trailer hook with anti-fracture protection function according to claim 2, characterized in that: A return spring (206) is fixedly connected to the side surface of the mounting block (204), and one end of the return spring (206) away from the mounting block (204) is fixedly connected to the side surface of the fixing plate (201).

7. The trailer hook with anti-fracture protection function according to claim 6, characterized in that: The initial state of the return spring (206) is a relaxed state, and the number of the telescopic rods (202) is set to two, which are symmetrical to each other along the vertical center axis of the fixed plate (201).

Images