Tow hook for rear part of forklift
By designing a trailer hook at the rear of the forklift, and using the base, guide members and traction components to achieve automatic connection and separation between the pin and the trailer ring, the complex operation and safety hazards of traditional forklift trailers are solved, and the operation efficiency and safety are improved.
Patent Information
- Application Number
- CN202422565653.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Traditional forklift trailers are difficult to connect and separate, and they need to be manually removed from the vehicle, especially when the trailer is loaded heavily.
A trailer hook for the rear of the forklift is designed, including a base, a guide member, a latch and a traction assembly. By controlling the latch movement in the cab, the traction assembly is used to realize the separation and connection between the latch and the trailer ring, and the connection accuracy is improved in combination with the flare guide member.
The connection and separation of the trailer rings are achieved in the forklift cab, which improves work efficiency, avoids the tedious process and safety hazards of manual departure, and ensures the accuracy and safety of the connection.
Smart Images
Figure CN223254831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering equipment, in particular to a trailer hook used at the rear of a forklift. Background Art
[0002] A forklift is a type of transport tool widely used in factories, logistics, ports, and other places. Not only can the forks at the front of the forklift carry cargo, but the rear forklift can also be used to tow cargo by adding a trailer hook. Currently, there are two main ways to use a forklift to tow a trailer:
[0003] One is to directly connect the trailer's towing eye to the pin at the rear of the forklift to achieve the purpose of dragging the trailer forward. Although this solution can meet the requirements of dragging goods, it has high requirements for the trailer. The height of the towing eye must be consistent with the height of the forklift pin. The second solution is to connect the trailer by adding a connecting plate. Although this solution can also achieve the purpose, after adding the connecting plate, due to the presence of two front and rear pins and the connecting plate, it requires high technical skills from the driver, especially when reversing. It is difficult to control the direction well. The above two solutions also have a common disadvantage that both require manual operation. It is very inconvenient, especially when the trailer is full of goods. Due to the heavy weight, the operation is difficult and there are safety hazards. Utility Model Content
[0004] The utility model aims to provide a trailer hook for the rear of a forklift, aiming to solve the problems of difficulty in connecting and disconnecting the trailer on a traditional forklift and the complicated process.
[0005] In order to solve the above problems, the utility model provides a trailer hook for the rear of a forklift, the trailer hook comprising a base, a guide member with a bell mouth, a latch and a towing assembly;
[0006] The base is fixed to the rear of the forklift, the guide member is connected to the base, the traction assembly is connected to the base, the traction assembly is connected to the latch, the traction assembly drives the latch to move relative to the guide member, so that the latch is separated from and / or connected to the towing eye on the trailer, the traction assembly is connected to the cab of the forklift, and the bell mouth is adapted to the towing eye.
[0007] Preferably, the traction assembly includes a connecting rod, a spring and a pulling rope, the first end of the connecting rod is connected to the pin, the second end of the connecting rod is connected to the pulling rope, and the spring is sleeved on the connecting rod.
[0008] Preferably, the traction assembly further includes a support portion, a first end of the support portion is connected to the base, the second end of the connecting rod passes through the second end of the support portion, and the first end of the spring abuts against the second end of the support portion.
[0009] Preferably, the traction assembly further comprises a limiting portion provided at the end of the latch pin, the limiting portion being connected to the first end of the connecting rod, and the limiting portion being located outside the guide member.
[0010] Preferably, the deformation length of the spring is less than or equal to the length of the pin.
[0011] Preferably, the trailer hook further comprises an adjusting bolt, a first end of the adjusting bolt is connected to the base, and a second end of the adjusting bolt abuts against the forklift.
[0012] Preferably, a first nut is provided on the base, the second end of the adjusting bolt passes through the first nut, and the second end of the adjusting bolt is further provided with a second nut.
[0013] Preferably, the number of the adjusting bolts is not less than three.
[0014] Preferably, the base is provided with a connecting plate, and the connecting plate and the traction assembly are fixedly connected by bolts.
[0015] Preferably, the guide member is provided with a back plate, and the back plate is fixedly connected to the connecting plate.
[0016] This arrangement allows the towing assembly to be controlled from within the forklift cab to drive the latch, thereby separating and / or connecting the latch to the towing eye on the trailer. This eliminates the need for manual connection to the towing eye at the trailer hook, improving work efficiency and avoiding the safety hazards associated with manual operation when the trailer is heavily loaded. Furthermore, a guide member with a flared mouth adapted to the towing eye facilitates the latch's connection to the towing eye during the connection process, improving work efficiency and ensuring connection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of a trailer hook according to an embodiment of the present utility model;
[0018] Figure 2 This is a schematic structural diagram of a traction assembly according to an embodiment of the present utility model;
[0019] Figure 3 yes Figure 2 Enlarged view of the part A in the middle;
[0020] Figure 4 This is a schematic diagram of the base structure according to one embodiment of the utility model;
[0021] Figure 5 This is a schematic structural diagram of a guide member according to an embodiment of the present utility model;
[0022] List of reference numerals:
[0023] 1. Base; 11. Connecting plate;
[0024] 2. Guide member; 2a. Bell mouth; 21. Back plate;
[0025] 3. Latch;
[0026] 4. Traction assembly; 41. Connecting rod; 42. Spring; 43. Pull rope; 44. Support part; 45. Limiting part;
[0027] 5. Adjusting bolt; 5a. First nut; 5b. Second nut. DETAILED DESCRIPTION
[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.
[0029] The accompanying drawings illustrate schematic diagrams of layer structures according to embodiments of the present invention. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes, relative sizes, and positional relationships of the various regions and layers shown in the figures are merely illustrative and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions based on actual needs.
[0030] Combine Figure 1 and Figure 5One embodiment of the present invention provides a trailer hook for the rear of a forklift. The trailer hook includes a base 1, a guide member 2 having a bell mouth 2a, a latch 3, and a towing assembly 4. The base 1 is fixed to the rear of the forklift, the guide member 2 is connected to the base 1, the towing assembly 4 is connected to the base 1, and the towing assembly 4 is connected to the latch 3. The towing assembly 4 drives the latch 3 to move relative to the guide member 2, so that the latch 3 is separated from and / or connected to the towing eye on the trailer. The towing assembly 4 is connected to the cab of the forklift, and the bell mouth 2a is adapted to fit the towing eye. With this arrangement, when the trailer hook needs to be connected to the towing eye on the trailer, the towing assembly 4 is controlled from within the cab of the forklift to drive the latch 3 so that the latch 3 moves in a predetermined direction of the guide member 2. At this time, the bell mouth 2a faces the trailer, and the towing eye enters the guide member 2 along the bell mouth 2a. After the towing eye reaches a designated position, the towing assembly 4 is controlled from within the cab of the forklift to connect the latch 3 to the towing eye. Among them, the base 1 is arranged at the rear of the forklift to provide a fixing position for the trailer hook, and the guide member 2 facilitates the trailer ring to enter the specified position and complete the connection with the pin 3, thereby improving the connection efficiency and accuracy of the trailer ring and the pin 3; connecting the traction component 4 to the cab of the forklift can realize the connection between the pin 3 and the trailer ring by controlling the traction component 4 in the cab, avoiding the tedious operation of manual connection by getting off the vehicle, improving the connection efficiency, and at the same time, the connection process does not require manual participation by humans, thereby improving the safety of the connection.
[0031] It should be noted that the connection method between the base 1 and the forklift is not limited here, and can be a snap connection, welding, screw connection, or a fixed shaft provided on the forklift that passes through a reserved hole provided on the base 1, so that the base 1 can fix the trailer hook to the rear of the forklift. The connection method between the base 1 and the guide member 2 is also not limited here, and can be a fixed connection method such as screw connection or welding. The arrangement position of the pin 3 relative to the guide member 2 is not limited here. The pin 3 passes through the guide member 2. Optionally, the pin 3 can be arranged vertically, horizontally, or obliquely through the guide member 2, so that it can move along the guide member 2 to complete the connection with the trailer eye. In a preferred embodiment, the latch 3 vertically passes through the guide member 2, and the pulling assembly 4 can drive the latch 3 to move vertically along the guide member 2. When the trailer hook and the pull ring need to be connected, the pulling assembly 4 is first used to lift the latch 3, causing the latch 3 to move vertically and separate from the bell mouth 2a. The forklift is then moved to a designated position where the towing ring extends into the guide member 2. The pulling force of the pulling assembly 4 is then released, and the latch 3 is lowered until it passes through the guide member 2 again, thereby completing the connection between the latch 3 and the towing ring. The operation is consistent during the process of separating the latch 3 and the towing ring. The pulling assembly 4 lifts the latch 3 to separate the latch 3 and the trailer. The forklift is then moved to cause the towing ring to leave the guide member 2, and the latch 3 is lowered through the guide member 2 to complete the reset.
[0032] Combine Figure 1 and Figure 2 In a preferred embodiment, the towing assembly 4 includes a connecting rod 41, a spring 42, and a pull rope 43. The first end of the connecting rod 41 is connected to the latch 3, the second end of the connecting rod 41 is connected to the pull rope 43, and the spring 42 is sleeved on the connecting rod 41. With this arrangement, the connecting rod 41 connects the latch 3 and the pull rope 43, while the spring 42 is sleeved on the connecting rod 41. When the pull rope 43 pulls the connecting rod 41, it compresses the spring 42. The pull rope 43 is connected and controlled through the forklift cab, driving the connecting rod 41 to move, thereby moving the latch 3 relative to the guide member 2. During this movement, the latch 3 compresses the spring 42. When the towing eye enters the designated position of the guide member 2, the pull rope 43 is released from the forklift cab. At this time, the spring 42 pushes the latch 3 through the guide member 2, completing the connection between the latch 3 and the towing eye. It should be noted that when the latch 3 vertically passes through the guide member 2, the pull rope 43 is connected to the vertically arranged upper end. If the deadweight of the latch 3 is sufficiently large, the spring 42 may not be provided. After the latch 3 is lifted by the pull rope 43 and the towing eye enters or leaves the guide member 2, the latch 3 can fall back along the guide member 2 due to its own weight. This does not limit the connection relationship of the pull rope 43 within the forklift cab, nor does it limit the connection relationship between the pull rope 43 and the connecting rod 41. It is sufficient that the pull rope 43 can achieve the movement of the connecting rod 41 by driving the latch 3 within the forklift cab.
[0033] The method for securing the ends of spring 42 is not limited herein. It can be directly mounted on connecting rod 41, with the end of spring 42 proximal to latch 3 abutting against the latch 3 or the end of connecting rod 41. As latch 3 moves, the end of spring 42 proximal to pull cord 43 remains in position during the movement of latch 3. The method for securing the end of spring 42 proximal to pull cord 43 is also not limited. A bracket for securing spring 42 can be provided on guide member 2, or connecting rod 41 can be configured to include a housing with a movable connecting rod 41 disposed within the housing. In this case, the end of spring 42 proximal to pull cord 43 abuts against the housing, thereby compressing spring 42 when latch 3 moves. In a preferred embodiment, traction assembly 4 further includes a support portion 44, a first end of which is connected to base 1. The second end of connecting rod 41 passes through the second end of support portion 44, with the first end of spring 42 abutting against the second end of support portion 44. By providing the support portion 44 , the movement of the connecting rod 41 and the latch 3 is made more stable, and the spring 42 can also abut against the support portion 44 , making the structure simpler and easier to operate.
[0034] Combine Figure 2In a preferred embodiment, the towing assembly 4 further includes a stopper 45 disposed at the end of the latch 3. The stopper 45 is connected to the first end of the connecting rod 41 and is located outside the guide member 2. By providing the stopper 45, when the latch 3 passes through the guide member 2, the stopper 45 moves along with the connecting rod 41 and the latch 3. When the latch 3 is located at a predetermined position on the guide member 2, the stopper 45 is located at the top of the guide member 2, preventing the latch 3 from continuing to move on the guide member 2 and affecting the connection between the latch 3 and the towing eye. Preferably, the deformation length of the spring 42 is less than or equal to the length of the latch 3. With this arrangement, when the pull cord 43 is pulled, the distance the latch 3 moves toward the pull cord 43 does not exceed the length of the latch 3 itself, ensuring that the latch 3 remains movably connected to the guide member 2. This prevents the latch 3 from moving too far toward the pull cord 43 in extreme cases, causing the latch 3 to disengage from the guide member 2 and affecting its return.
[0035] Combine Figure 3 , Figure 3 yes Figure 2 In the enlarged view of detail A in the middle, in a preferred embodiment, the trailer hook further includes an adjusting bolt 5, the first end of which is connected to the base 1, and the second end of which abuts the forklift. By attaching the first end of the adjusting bolt 5 to the base 1, the adjusting bolt 5 can be rotated to adjust the tilt angle of the base 1 relative to the forklift, thereby adjusting the orientation of the bell mouth 2a of the guide member 2. This arrangement increases the possible installation angles of the trailer hook and the towing eye, allowing for adaptability to different trailer hook and towing eye connection situations. Preferably, the base 1 is provided with a first nut 5a, through which the second end of the adjusting bolt 5 passes. A second nut 5b is also provided at the second end of the adjusting bolt 5. The first nut 5a is fixedly connected to the base 1, and the adjusting bolt 5 is connected to the first nut 5a. By rotating the adjusting bolt 5 to adjust the connection position with the first nut 5a, the tilt angle between the base 1 and the forklift can be adjusted. After the orientation is adjusted, the second nut 5b reinforces the adjusting bolt 5, providing greater stability during use. The connection between the first bolt and the base 1 is not limited herein; the first bolt may be welded to the base 1 or integrally formed with the base 1. Preferably, the number of adjustment bolts 5 is no less than three. This arrangement improves the overall stability of the base 1 after adjustment and allows the trailer hook to be adjusted in a variety of directions.
[0036] Combine Figure 4In a preferred embodiment, the base 1 is provided with a connecting plate 11, and the connecting plate 11 and the traction assembly 4 are fixedly connected by bolts. Furthermore, the adjusting bolts 5 are arranged around the connecting plate 11, which is conducive to adjusting the orientation of the base 1. The specific connection method between the base 1 and the forklift is not limited here. It can be that a reserved hole is provided on the base 1, and a pin is fixedly provided on the forklift to pass through the reserved hole to achieve the connection between the base 1 and the forklift. Through such an arrangement, when adjusting the orientation of the trailer hook, the pin and the reserved hole make the adjustable range of the trailer hook wider, and are also more conducive to adjusting the orientation of the trailer hook. It is also possible to set the base 1 and the forklift as one or weld them together. In this case, the connecting plate 11 and the base 1 are rotatably connected, and the orientation of the connecting plate 11 can be adjusted by adjusting the bolts 5, thereby achieving the orientation adjustment of the trailer hook.
[0037] Combine Figure 5 In a preferred embodiment, the guide member 2 is provided with a back plate 21, which is fixedly connected to the connecting plate 11. The back plate 21 can enhance the integrity of the guide member 2. Compared to a method where the sidewalls of the bell mouth 2a of the guide member 2 are directly connected to the connecting plate 11, the fixed connection between the back plate 21 and the connecting plate 11 provides greater strength and load capacity, thereby improving the overall strength of the trailer hook and making it safer and more reliable during use. Alternatively, the back plate 21 and the connecting plate 11 can be bolted or welded, or the back plate 21 and the connecting plate 11 can be integrally formed, as long as the integrity of the trailer hook is maintained during use.
[0038] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.
Claims
1. A trailer hook for the rear of a forklift, characterized in that: The trailer hook comprises a base (1), a guide member (2) having a bell mouth (2a), a latch (3) and a towing assembly (4); The base (1) is fixed to the rear of a forklift, the guide member (2) is connected to the base (1), the traction assembly (4) is connected to the base (1), the traction assembly (4) is connected to the latch (3), the traction assembly (4) drives the latch (3) to move relative to the guide member (2), so that the latch (3) is separated from and / or connected to the towing ring on the trailer, the traction assembly (4) is connected to the cab of the forklift, and the bell mouth (2a) is adapted to the towing ring.
2. The trailer hook according to claim 1, characterized in that: The traction assembly (4) comprises a connecting rod (41), a spring (42) and a pulling rope (43); the first end of the connecting rod (41) is connected to the latch (3); the second end of the connecting rod (41) is connected to the pulling rope (43); and the spring (42) is sleeved on the connecting rod (41).
3. The trailer hook according to claim 2, characterized in that: The traction assembly (4) further includes a support portion (44), a first end of the support portion (44) being connected to the base (1), a second end of the connecting rod (41) passing through the second end of the support portion (44), and a first end of the spring (42) abutting against the second end of the support portion (44).
4. The trailer hook according to claim 3, characterized in that: The traction assembly (4) further comprises a limiting portion (45) arranged at the end of the latch (3), the limiting portion (45) being connected to the first end of the connecting rod (41), and the limiting portion (45) being located outside the guide member (2).
5. The trailer hook according to claim 2, characterized in that: The deformation length of the spring (42) is less than or equal to the length of the latch (3).
6. The trailer hook according to claim 1, characterized in that: The trailer hook further comprises an adjusting bolt (5), a first end of the adjusting bolt (5) being connected to the base (1), and a second end of the adjusting bolt (5) being in contact with the forklift.
7. The trailer hook according to claim 6, characterized in that: A first nut (5a) is provided on the base (1), the second end of the adjusting bolt (5) passes through the first nut (5a), and the second end of the adjusting bolt (5) is further provided with a second nut (5b).
8. The trailer hook according to claim 7, characterized in that: The number of the adjusting bolts (5) is not less than three.
9. The trailer hook according to claim 1, characterized in that: The base (1) is provided with a connecting plate (11), and the connecting plate (11) and the traction assembly (4) are fixedly connected by bolts.
10. The trailer hook according to claim 9, characterized in that: The guide member (2) is provided with a back plate (21), and the back plate (21) and the connecting plate (11) are fixedly connected.