Winch tightening limiting protection device

Abstract

The invention discloses the field of automotive winches, and particularly relates to a winch tightening and limiting protection device which comprises a winch assembly, a bottom plate is arranged on the winch assembly, a limiting baffle is in sliding fit with the bottom plate, and a protruding check block is arranged on the side, close to the bottom plate, of the limiting baffle. By arranging the protruding check block and the limiting switch, when the tightening condition of the winch cannot be directly observed, the relay can be triggered through contact of the protruding check block and the limiting switch so that power can be cut off, and therefore the safety of equipment during operation is improved, and the device is simple in structure, easy and convenient to replace, low in cost and suitable for popularization and application. The method is suitable for large-scale popularization.

Description

Technical Field

[0001] The invention relates to the field of vehicle winches, and in particular to a winch tightening and limiting protection device. Background Art

[0002] A winch is a machine with a vertically mounted cable drum that can wind up but not store ropes under power drive. It is a self-protection and traction device for vehicles and ships. It can be used for self-rescue and rescue in harsh environments such as snow, swamps, deserts, beaches, muddy mountain roads, etc., and can be used for obstacle removal, dragging objects, and installation of facilities under other conditions. It is mainly used for off-road vehicles, agricultural vehicles, ATV all-terrain vehicles, yachts, fire rescue vehicles, road tow trucks, and other special vehicles and special vehicles. However, most of the winches on the market in the prior art are steel rope winches driven by a single stepping motor, with a simple structure, without any safety insurance device, and have the following problems:

[0003] 1) During the tightening process of the winch, the dragging exceeds its actual load, causing the circuit current to increase and the circuit to burn out;

[0004] 2) Most existing winches of all-terrain vehicles are installed under the vehicle or in an inconspicuous place, which makes it difficult for users to observe the tightening status. If the winch has tightened the steel rope to the limit during use and the operator cannot find it in time and continue to tighten it, the load on the winch motor will suddenly increase and damage the winch mechanism, which will further increase the current and exceed the safety range of the circuit.

[0005] Therefore, those skilled in the art are committed to developing a winch tightening limit protection device. Summary of the invention

[0006] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a winch tightening limit protection device.

[0007] To achieve the above-mentioned purpose, the present invention provides a winch tightening limit protection device, including a winch assembly, the winch assembly is provided with a base plate, the base plate is slidably matched with a limit baffle, the limit baffle is provided with a protruding baffle close to the side of the base plate, and the winch assembly is provided with a limit switch that cooperates with the protruding baffle.

[0008] Preferably, a first support plate and a second support plate are bent at opposite sides of the bottom plate, respectively, and a pin is provided between the first support plate and the second support plate;

[0009] Preferably, the limiting baffle has a third support plate and a fourth support plate bent on two corresponding sides thereof, and the third support plate and the fourth support plate are respectively provided with a first slide groove and a second slide groove;

[0010] Preferably, both ends of the pin shaft are slidably matched with the first sliding groove and the second sliding groove respectively.

[0011] Preferably, the protruding stopper is fixedly connected to a side of the third support plate close to the bottom plate.

[0012] Preferably, a plurality of sliding shafts are provided on the bottom plate, and the plurality of sliding shafts extend along a side away from the bottom plate, and the sliding shafts are slidably matched with the limit baffle.

[0013] Preferably, an elastic component is sleeved outside the sliding shaft, and two ends of the elastic component are respectively fixedly connected to the bottom plate and the limit baffle.

[0014] Preferably, a buffer rubber block is provided on a side of the limit baffle away from the bottom plate.

[0015] Preferably, a relay is provided in the winch assembly, and the limit switch is electrically connected to the relay.

[0016] Preferably, the winch assembly is also provided with a circuit breaker.

[0017] The beneficial effects of the present invention are as follows: by setting a protruding stopper and a limit switch, when the tightening condition of the winch cannot be directly observed, the contact between the two can trigger a relay to cut off the power, thereby improving the safety of the equipment during operation; and the present invention has a simple structure, is easy to replace and has a low cost, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0019] Figure 2 It is a schematic diagram of the bottom structure of a specific implementation mode of the present invention.

[0020] Figure 3 It is a structure and circuit connection diagram of a specific implementation method of the present invention.

[0021] 1. Winch assembly; 11. Limit switch; 2. Bottom plate; 2a. Protruding stopper; 21. First support plate; 21a. Pin shaft; 22. Second support plate; 3. Limit stopper; 31. Third support plate; 31a. First slide groove; 32. Fourth support plate; 32a. Second slide groove; 23. Sliding shaft; 23a. Elastic component; 4. Buffer rubber block; 5. Relay; 6. Circuit breaker; 7. Power supply; 8. Wire changer; 9. Switch; 10. Release the working circuit; 11. Tighten the working circuit. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as limiting the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1-3 As shown, a winch tightening limit protection device includes a winch assembly 1, a bottom plate 2 is provided on the winch assembly 1, the bottom plate 2 provides support for the entire limit protection device, and the bottom plate 2 is flipped 90 degrees on opposite sides to the side away from the winch assembly 1 to form a first support plate 21 and a second support plate 22, a pin 21a is provided between the first support plate 21 and the second support plate 22, in this embodiment, two pins 21a are provided, and in other embodiments, other numbers of pins 21a can be selected according to the length of the bottom plate 2, a limit baffle 3 is provided on the side of the bottom plate 2 away from the winch assembly 1, and the limit baffle 3 is bent with a third support plate 31 and a fourth support plate 32 on both sides corresponding to the bottom plate 2, and the third support plate 31 and the fourth support plate 32 are respectively provided with a first slide groove 31a and a second slide groove 32a, and the pin 21a is provided at both ends. The ends are respectively inserted into the first slide groove 31a and the second slide groove 32a to slide and cooperate with the first slide groove 31a and the second slide groove 32a, thereby driving the limit baffle 3 to slide and cooperate with the base plate 2. In this embodiment, the first slide groove 31a and the second slide groove 32a are set to two groups corresponding to the pin shaft 21a, and other numbers can also be set in other embodiments. The sliding cooperation is a clearance cooperation. The limit baffle 3 is provided with a protruding block 2a on the side close to the base plate 2. The protruding block 2a is fixedly connected to the side of the third support plate 31 close to the base plate 2. The winch assembly 1 is provided with a limit switch 11 that cooperates with the protruding block 2a. The limit switch 11 is electrically connected to the relay 5. When the limit baffle 3 slides toward the base plate 2, it drives the protruding block 2a to move synchronously. The contact between the protruding block 2a and the limit switch 11 can trigger the relay 5 to cut off the power to the entire circuit.

[0024] In this embodiment: a plurality of sliding shafts 23 are arranged on the bottom plate 2. In this embodiment, the sliding shafts 23 are arranged in 2 groups. In other embodiments, a suitable number of sliding shafts 23 can be selected according to specific circumstances. The sliding shafts 23 extend along the side away from the bottom plate 2. An elastic component 23a is sleeved on the outside of the sliding shaft 23. In this embodiment, the elastic component 23a is a spring. The two ends of the elastic component 23a are respectively fixedly connected to the bottom plate 2 and the limit baffle 3. When the elastic component 23a is in a freely extended state, the two ends of the pin shaft 21a are respectively located at the first slide groove 31a and the second slide groove 32a close to the bottom plate 2. 23 is slidably matched with the limit baffle 3. In this embodiment, the sliding match is a clearance match. When the limit baffle 3 moves along the sliding shaft 23 toward the side of the base plate 2, the elastic component 23a is in a continuously compressed state until the protruding block 2a contacts the limit switch 11, the circuit is powered off, and the equipment stops running. When the motor reverses, the elastic component 23a pushes the protruding block 2a to break contact with the limit switch 11 under the action of elastic recovery. A buffer rubber block 4 is also provided on the side of the limit baffle 3 away from the base plate 2. The buffer rubber block 4 is provided to push the limit baffle 3 to slide toward the base plate 2.

[0025] In this embodiment: it also includes a power supply 7, which is the power source of the equipment. In this embodiment, the tightening working circuit 11 and the releasing working circuit 10 are two different lines. The switch 9 is controlled by the line changer 8 to complete the switching of the tightening working circuit 11 and the releasing working circuit 10. The tightening and loosening of the winch are achieved by the forward and reverse rotation of the motor. The circuit breaker 6 and the relay 5 are located on the tightening working circuit 11. When the winch assembly 1 is overloaded, the current in the circuit will instantly exceed the rated current, and the circuit breaker 6 automatically disconnects the circuit to protect the safety of the entire equipment and improve the safety of the tightening working circuit 11 during operation.

[0026] When in use, tighten the towing hook wire rope on the winch assembly 1. When the towing hook wire rope is tightened to the end position, the buffer rubber block 4 abuts against the limit baffle 3. Continue to tighten the towing hook wire rope buffer rubber block 4 to push the limit baffle 3 to move toward the bottom plate 2 until the protruding block 2a on the limit baffle 3 contacts the limit switch 11 to trigger the relay 5. At this time, it is the tightening limit of the winch, and the relay 5 is powered off to improve the safety of the tightening working circuit 11 during operation.

[0027] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A winch tightening limit protection device, Features: The invention comprises a winch assembly (1), wherein a bottom plate (2) is provided on the winch assembly (1), a limit baffle (3) is slidably matched on the bottom plate (2), a protruding baffle (2a) is provided on the side of the limit baffle (3) close to the bottom plate (2), and a limit switch (11) matched with the protruding baffle (2a) is provided on the winch assembly (1).

2. The winch tightening limit protection device according to claim 1, Features: A first support plate (21) and a second support plate (22) are respectively bent on opposite sides of the bottom plate (2), and a pin shaft (21a) is provided between the first support plate (21) and the second support plate (22); A third support plate (31) and a fourth support plate (32) are respectively bent on two corresponding sides of the limit baffle (3), and a first slide groove (31a) and a second slide groove (32a) are respectively opened on the third support plate (31) and the fourth support plate (32); The two ends of the pin shaft (21a) are respectively slidably matched with the first sliding groove (31a) and the second sliding groove (32a).

3. The winch tightening limit protection device according to claim 2, Features: The protruding stopper (2a) is fixedly connected to a side of the third support plate (31) close to the bottom plate (2).

4. The winch tightening limit protection device according to claim 1, Features: A plurality of sliding shafts (23) are provided on the bottom plate (2), and the plurality of sliding shafts (23) extend along a side away from the bottom plate (2), and the sliding shafts (23) are slidably matched with the limit baffle (3).

5. The winch tightening limit protection device according to claim 4, Features: An elastic component (23a) is sheathed on the sliding shaft (23), and two ends of the elastic component (23a) are respectively fixedly connected to the bottom plate (2) and the limit baffle (3).

6. The winch tightening limit protection device according to claim 1, Features: A buffer rubber block (4) is provided on the side of the limit baffle (3) away from the bottom plate (2).

7. The winch tightening limit protection device according to claim 1, Features: A relay (5) is provided in the winch assembly (1), and the limit switch (11) is electrically connected to the relay (5).

8. The winch tightening limit protection device according to claim 7, Features: The winch assembly (1) is also provided with a circuit breaker (6).

Images