Manual winch for getting out of trouble of vehicle

Abstract

The utility model relates to a manual winch for vehicle escape, which is characterized by comprising an outer frame body and a rotating winch detachably connected in the outer frame body, the rotating winch comprises a sleeve, ratchet wheels fixed at the two end parts of the sleeve, and rocking arms rotationally connected on the outer side surfaces of the ratchet wheels, the swing arm is connected with a first pawl so as to drive the ratchet wheel to rotate when the swing arm swings in the forward direction, the outer frame body is connected with a second pawl so as to limit rotation of the ratchet wheel when the swing arm swings in the reverse direction, and a first detachable connecting rod in threaded connection with the outer frame body is arranged in the sleeve in a penetrating mode. An opening window through which the end part of the traction ring can penetrate and sleeve the first detachable connecting rod is arranged on the wall of the sleeve; the manual winch for vehicle escape is compact in structure, reasonable in design, convenient to carry and use and favorable for realizing vehicle escape.

Description

Technical Field

[0001] This utility model relates to a vehicle traction device, specifically a manual winch for vehicle traction. Background Technology

[0002] With the increase in people's outdoor driving activities, it is common for vehicles to get stuck on various complex road surfaces such as wet mud and steep slopes, causing the four wheels to slip. At present, there are few vehicles equipped with traction devices, mainly because traction devices are large and ordinary cars do not have enough space to install them.

[0003] For example, the Chinese patent "Windlass and Vehicle Having the Winch", publication number CN205132997U, includes a winch body having a first end and a second end and including a clutch located at the second end of the winch body, the clutch having a clutch operation knob for driving the clutch; and an operating assembly having an operating end connected to the clutch operation knob to drive the clutch operation knob, the operating end of the operating assembly being adjacent to the first end of the winch body. The winch of this patent occupies a large space and requires the use of the vehicle's electrical system.

[0004] Currently, a Chinese patent, "Self-Rescue Device for Wheels on Various Terrain," with publication number CN204820987U, has been found. This patent mainly includes a combination disc and a winch device. The disc body can be attached to one side of the tire rim. The disc body has a through-hole for engaging, which corresponds to a fixed point on one side of the rim. A locking post protrudes from one side of the disc body and can be fitted into a groove in the winch device. The winch device has a winch body with a steel cable wound around it. One end of the steel cable is fixed, and a groove runs through the center of the winch body. The through-hole can engage with one side of the rim, and the groove can engage with a locking block. Although this patent has a simple overall structure, occupies little space, and has the advantages of stability and practicality, it requires the removal and installation of wheel bolts, making it cumbersome to use and potentially affecting the balance of each wheel in subsequent use. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a manual winch for vehicle traction, which is reasonably designed, easy to use, and does not affect the normal use of the vehicle.

[0006] This utility model relates to a manual winch for vehicle traction, characterized in that it includes an outer frame and a rotating winch detachably connected to the outer frame. The rotating winch includes a sleeve, ratchet wheels fixed to both ends of the sleeve, and a rocker arm rotatably connected to the outer surface of the ratchet wheels. A first pawl is connected to the rocker arm to drive the ratchet wheels to rotate when the rocker arm swings forward. A second pawl is connected to the outer frame to restrict the rotation of the ratchet wheels when the rocker arm swings in the opposite direction. A first detachable connecting rod threadedly connected to the outer frame is provided through the sleeve. An opening window is provided on the sleeve wall to facilitate the insertion of the end of the pulling ring and its fitting onto the first detachable connecting rod.

[0007] Preferably, the rocker arms are two in number and symmetrically disposed on the outer surfaces of the two ratchet wheels, and the rocker arms are rotatably connected to the outer surfaces of the two ratchet wheels.

[0008] Preferably, a second detachable connecting rod is installed between the two rocker arms, the first pawl is sleeved on the second detachable connecting rod, and a first torsion spring is connected between the second detachable connecting rod and the first pawl to drive the first pawl to press against the ratchet, so that when the rocker arm swings forward, the ratchet is driven to rotate by the first pawl.

[0009] Preferably, the free ends of the two rocker arms are fixedly connected to each other, and an extension rod is threadedly connected to the free end.

[0010] Preferably, a third detachable connecting rod is connected to the outer frame, and a second pawl is sleeved on the third detachable connecting rod. A second torsion spring is connected between the third detachable connecting rod and the second pawl to drive the second pawl to press against the ratchet, so that the ratchet rotation is restricted by the second pawl when the rocker arm swings in the opposite direction.

[0011] Preferably, the second pawl is provided with a manual lever so that the second pawl can be manually driven to disengage from the ratchet.

[0012] Preferably, the outer frame has a channel at its center to facilitate the insertion of the first detachable connecting rod, and the outer frame has strip-shaped slots on both sides of the channel.

[0013] Preferably, a fourth detachable connecting rod and a fifth detachable connecting rod are respectively provided on the front and rear parts of the outer frame.

[0014] Preferably, the outer frame is composed of two side frame strips and a swing block detachably connected to both sides of the two side frame strips by a sixth detachable connecting rod and a seventh detachable connecting rod. Each side frame strip is provided with a strip-shaped slot and a channel for installing the first detachable connecting rod, the third detachable connecting rod, the sixth detachable connecting rod and the seventh detachable connecting rod. The side of the swing block is provided with two lugs, and the lugs are provided with a channel for installing the fourth detachable connecting rod and the fifth detachable connecting rod.

[0015] The working principle of this utility model of a manual winch for vehicle traction is as follows: When a vehicle needs to be tractioned, the first end of the outer frame is directly connected to a towing vehicle or tree, either directly or via a towing strap. The first end of another towing strap (i.e., the pull ring) is passed through the opening window and fitted onto the first detachable connecting rod. The second end of the towing strap is wrapped around the main beam or hook of the vehicle to be traction and connected to the second end of the outer frame. By repeatedly swinging the rocker arm, the ratchet and the sleeve are rotated in the forward direction, so that the first end of the towing strap is gradually wound into a coil by the sleeve, allowing the vehicle to gradually approach the outer frame, thus enabling the vehicle to escape from wet, muddy, or rutted pits.

[0016] This utility model features a compact and reasonably designed manual winch for vehicle traction, which is convenient to carry and use, and facilitates vehicle traction. Attached Figure Description

[0017] Figure 1 This is a partial structural schematic diagram of the present invention (without the detachable connecting rod and pawl, etc. installed);

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 This is another cross-sectional structural schematic diagram of this utility model;

[0020] Figure 4 yes Figure 2 Use state construction diagram;

[0021] Figure 5 This is a front view of one embodiment of the outer frame;

[0022] Figure 6 This is a three-dimensional structural diagram of one state of the present invention (top view).

[0023] Figure 7 This is a three-dimensional structural schematic diagram (bottom view) of another state of this utility model. Detailed Implementation

[0024] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0025] This utility model of a manual winch for vehicle traction includes an outer frame 1 and a rotating winch 2 detachably connected to the outer frame. The outer frame 1 is a rectangular frame, which can be made of materials such as cast iron, aluminum alloy or rigid plastic. The detachable connection can be a threaded connection or a snap-fit ​​connection.

[0026] The rotating winch 2 includes a sleeve 3, ratchet 4 fixed to both ends of the sleeve, and a rocker arm 5 rotatably connected to the outer surface of the ratchet. The sleeve 3 can be a steel pipe. The inner end face of the ratchet 4 is welded and fixed perpendicularly to the sleeve 3. A first detachable connecting rod 8 is threaded through the sleeve 3 and connected to the outer frame. The first detachable connecting rod 8 is a rod body with a threaded section at its end that is threaded to a threaded hole on the outer frame. The first detachable connecting rod 8 can also have a manual knob for easy rotation (the threaded section is located on the side away from the manual knob). The first detachable connecting rod 8 and the inner channel of the sleeve 3 can be in a small clearance fit to achieve smooth disassembly and installation of the sleeve 3 and the ratchet 4 while also providing good support.

[0027] The sleeve has an opening window 9 on its wall, which allows the end of the pull ring A to pass through and be fitted onto the first detachable connecting rod 8. The pull ring (i.e., the pull belt) is a commercially available component. The pull ring is a belt body 0.5-20 meters long, with annular belt sections at both ends (for hooking onto vehicle hooks or fixed objects, etc.).

[0028] The rocker arm 5 is connected to a first pawl 6. Specifically, there are two rocker arms 5 symmetrically arranged on the outer surfaces of the two ratchet wheels 4, and the rocker arms are rotatably connected to the outer surfaces of the two ratchet wheels. In order to make the rocker arm 5 swing stably and reliably, the axis of rotation of the rocker arm 5 is coaxial with the axis of rotation of the ratchet wheel 4. That is, a boss 14 (coaxial with the sleeve) is provided on the outer end surface of the ratchet wheel 4, and a countersunk hole matching the boss is provided on the rocker arm 5. In this way, the two can be kept to rotate coaxially and form a whole, which makes it convenient to install them in the channel 16 or the slot 19 through the first detachable connecting rod 8.

[0029] A second detachable connecting rod 10 is installed between the two rocker arms. The first pawl 6 is sleeved on the second detachable connecting rod 10. A first torsion spring is connected between the second detachable connecting rod 10 and the first pawl 6 to drive the first pawl to press against the ratchet. By setting the first torsion spring, the first pawl 6 can continuously press against the ratchet, so that when the rocker arm swings forward, the ratchet can be driven to rotate forward through the first pawl 6. The first torsion spring is not shown in the figure. It is a commonly used mechanical component. One end of the two free ends of the first torsion spring is fastened to the first pawl, and the other end is fastened to the rocker arm.

[0030] A second pawl 7 is connected to the outer frame 1 to limit the rotation of the ratchet when the rocker arm swings in the opposite direction. Specifically, a third detachable connecting rod 13 is connected to the outer frame, and the second pawl 7 is sleeved on the third detachable connecting rod 13. A second torsion spring is connected between the third detachable connecting rod and the second pawl to drive the second pawl to press against the ratchet. By setting the second torsion spring, the second pawl can continuously press against the ratchet, so that the second pawl can limit the rotation of the ratchet when the rocker arm swings in the opposite direction, thereby preventing the ratchet from rotating in the opposite direction.

[0031] To save effort, the free ends of the two rocker arms are fixedly connected to each other, and an extension rod 12 is threaded to the free end. Through the connection of the extension rod 12, the lever arm of the rocker arm 5 can be extended to achieve the purpose of saving effort.

[0032] For a reasonable design, the second pawl is equipped with a manual lever 15. The manual lever 15 can manually drive the second pawl 7 to disengage from the ratchet. That is, after the vehicle is pulled out of trouble, it is necessary to remove the pulling ring wound on the sleeve 3. First, the manual lever 15 is activated to overcome the elastic force of the second torsion spring, so that the second pawl 7 is disengaged from the ratchet. At this time, the pulling ring can be pulled outward, and the first detachable connecting rod 8 can be removed from the outer frame. This allows the entire pulling ring to be disengaged from the rotating winch 2.

[0033] To facilitate the installation and storage of the rotating winch 2, the center of the outer frame has a channel 16 for the first detachable connecting rod to pass through (the outer frame has two channels, one is a threaded hole for threaded connection with the threaded section of the first detachable connecting rod 8, and the other is a through hole that allows the first detachable connecting rod 8 to pass freely). The outer frame has strip-shaped slots 19 on both sides of the channel (i.e., in the shape of a racetrack, the width of the strip-shaped slots 19 is slightly larger than the diameter of the first detachable connecting rod 8, and the length of the strip-shaped slots 19 is set along the length of the outer frame so that the first detachable connecting rod 8, which is equipped with the sleeve 3 and the ratchet 4, can move along the length of the outer frame). When in use, the rotating winch 2 is coaxially mounted on the channel 16 through the first detachable connecting rod 8. When not in use, i.e. when it needs to be stored and packaged, the first detachable connecting rod 8 and the rotating winch 2 can be installed together in the strip-shaped slots 19, so that the rocker arm 5 can be laid flat as much as possible for easy storage.

[0034] The front and rear parts of the outer frame are respectively provided with a fourth detachable connecting rod 17 and a fifth detachable connecting rod 18. The shape, structure, and connection structure of the third detachable connecting rod 13, the fourth detachable connecting rod 17, and the fifth detachable connecting rod 18 are the same as those of the first detachable connecting rod 8. The fourth detachable connecting rod 17 and the fifth detachable connecting rod 18 are used for connecting the end of the traction ring (i.e., the trolley belt).

[0035] The second detachable connecting rod 10 has the same structure as the first detachable connecting rod 8, except for the installation position.

[0036] How to use the manual winch for getting vehicles out of trouble according to this utility model:

[0037] When a vehicle needs to be freed, the first end of the outer frame is connected to a towing vehicle, tree, or fixed rock via the fourth detachable connecting rod 17 and the shorter towing strap A1. The first end of the longer towing strap A2 is passed through the opening window 9 and fitted onto the first detachable connecting rod 8. The second end of the longer towing strap A2 is wrapped around the main beam or hook of the vehicle to be freed and connected to the fifth detachable connecting rod 18 on the second end of the outer frame. Then, the rocker arm is repeatedly swung to achieve forward rotation of the ratchet and the sleeve, so that the first end of the longer towing strap is gradually wound into a coil by the sleeve, allowing the vehicle to gradually approach the outer frame, thus freeing the vehicle from slippery mud pits, etc.

[0038] After the vehicle is freed from its predicament, the manual lever 15 can be activated to overcome the elastic force of the second torsion spring, allowing the second pawl 7 to disengage from the ratchet. At this point, the traction ring can be pulled outwards, and the first detachable connecting rod 8 can be removed from the outer frame, thus enabling the entire traction ring to detach from the rotating winch 2.

[0039] Then the integrated rotating winch 2 can be moved to one side, so that the rotating winch 2 is located between the strip slots 19 on both sides. The first detachable connecting rod 8 is passed through the strip slots 19 and the central hole of the sleeve of the rotating winch 2 and locked with bolts to achieve relative storage of the rotating winch 2 and the outer frame 1.

[0040] like Figure 1 The outer frame 1 shown is a single piece. To facilitate the storage of this outer frame, as follows: Figure 5 In one embodiment, the outer frame 1 shown consists of two side frame strips 101 and a swing block 102 detachably connected to both sides of the two side frame strips via a sixth detachable connecting rod 103 and a seventh detachable connecting rod 104. Each side frame strip 101 has a strip-shaped slot 19 for mounting the first detachable connecting rod 8, the third detachable connecting rod 13, the sixth detachable connecting rod 103, and the seventh detachable connecting rod 104. The swing block 102 has two lugs on its side, with holes for mounting the fourth detachable connecting rod 17 and the fifth detachable connecting rod 18. When needed for unloading, the swing block 102 is rotated to be flush with the side frame strips 101; when needed for packaging and transportation, the swing block 102 is rotated to be perpendicular to the side frame strips 101, thereby narrowing the length of the outer frame and facilitating packaging.

[0041] This utility model features a compact and reasonably designed manual winch for vehicle traction, which is convenient to carry and use, and facilitates vehicle traction.

[0042] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, designing different forms of manual winches for vehicle escaping based on the teachings of the present utility model does not require creative labor. All equivalent changes, modifications, substitutions and variations made in accordance with the scope of the patent application of the present utility model without departing from the principles and spirit of the present utility model shall be covered by the present utility model.

Claims

1. A manual winch for getting a vehicle out of trouble, characterized in that: The device includes an outer frame and a rotating winch detachably connected to the outer frame. The rotating winch includes a sleeve, ratchet wheels fixed to both ends of the sleeve, and a rocker arm rotatably connected to the outer surface of the ratchet wheels. A first pawl is connected to the rocker arm to drive the ratchet wheels to rotate when the rocker arm swings forward. A second pawl is connected to the outer frame to restrict the rotation of the ratchet wheels when the rocker arm swings in the reverse direction. A first detachable connecting rod threadedly connected to the outer frame is inserted through the sleeve. An opening window is provided on the wall of the sleeve to allow the end of the pulling ring to pass through and fit onto the first detachable connecting rod.

2. The manual winch for vehicle traction according to claim 1, characterized in that: The rocker arm has two symmetrically arranged on the outer surfaces of the two ratchet wheels, and the rocker arm is rotatably connected to the outer surfaces of the two ratchet wheels.

3. The manual winch for vehicle traction according to claim 2, characterized in that: A second detachable connecting rod is installed between the two rocker arms. The first pawl is sleeved on the second detachable connecting rod. A first torsion spring is connected between the second detachable connecting rod and the first pawl to drive the first pawl to press against the ratchet, so that when the rocker arm swings forward, the ratchet is driven to rotate by the first pawl.

4. The manual winch for vehicle traction according to claim 2 or 3, characterized in that: The free ends of the two rocker arms are fixedly connected to each other, and an extension rod is threadedly connected to the free end.

5. The manual winch for vehicle traction according to claim 1 or 2, characterized in that: A third detachable connecting rod is connected to the outer frame, and a second pawl is sleeved on the third detachable connecting rod. A second torsion spring is connected between the third detachable connecting rod and the second pawl to drive the second pawl to press against the ratchet, so that the ratchet rotation is restricted by the second pawl when the rocker arm swings in the opposite direction.

6. The manual winch for vehicle traction according to claim 5, characterized in that: The second pawl is equipped with a manual lever so that the second pawl can be manually driven to disengage from the ratchet.

7. The manual winch for vehicle traction according to claim 1, 2 or 3, characterized in that: The outer frame has a channel in the center to facilitate the insertion of the first detachable connecting rod, and the outer frame has strip-shaped slots on both sides of the channel.

8. The manual winch for vehicle traction according to claim 1, 2 or 3, characterized in that: The outer frame is provided with a fourth detachable connecting rod and a fifth detachable connecting rod at the front and rear, respectively.

9. The manual winch for vehicle traction according to claim 5, characterized in that: The outer frame consists of two side frame strips and a swing block detachably connected to both sides of the two side frame strips via a sixth and a seventh detachable connecting rod. Each side frame strip has a strip-shaped slot and a channel for installing the first, third, sixth, and seventh detachable connecting rods. The swing block has two lugs on its side, and the lugs have a channel for installing the fourth and fifth detachable connecting rods.

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