A trailer towing device for a fork lift truck

Abstract

The utility model belongs to the technical field of vehicle trailer rescue, especially relates to a trailer traction device for fork truck, including support frame, guide rod, connecting plate, mounting block, hook and bolt etc., the right part of support frame is fixed with multiple guide rods along the distribution of rectangle trend, the connecting plate is slidably arranged between the multiple guide rods, the mounting block is fixed on one side of connecting plate, the hook is fixed on one side of mounting block, its opening faces upward, the bolt is slidably arranged on the support frame, and one end of the bolt extends from the bottom of the support frame. Through setting liftable lifting block, rotatable connecting frame and adjustable length sliding plate, cooperating with the quick connection structure of bolt and threaded rod, the multidirectional adjustment connection between fork truck and trailer vehicle is realized, the trailer vehicle and fork truck are conveniently and quickly connected, the space requirement and operation threshold of trailer rescue are greatly reduced, the narrow or complex operation environment can be effectively adapted, and the flexibility and applicability of trailer rescue are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle towing and rescue technology, and in particular relates to a towing device for forklifts. Background Technology

[0002] Forklifts, as industrial vehicles integrating loading, unloading, and handling functions, have advantages such as maneuverability, high load capacity, and adaptability to various attachments, and are widely used in material handling operations in factories, warehouses, logistics centers, and other places. However, in actual use, forklifts may lose power due to engine failure, battery depletion, or transmission system damage, and become unable to move independently, requiring external equipment for towing assistance.

[0003] Currently, common towing rescue methods mainly rely on specialized towing vehicles, which are towed by inserting a connecting pin between the towing vehicle and the forklift frame. However, towing vehicles are usually large and have poor maneuverability, making them difficult to operate flexibly in narrow passages, workshops, or complex working conditions, thus limiting rescue operations and reducing efficiency.

[0004] Therefore, there is a particular need for a forklift trailer towing device to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of special trailer vehicles, such as large size, poor maneuverability, difficulty in operating in narrow or complex environments, and low rescue efficiency, this utility model provides a trailer towing device for forklifts.

[0006] This utility model is achieved through the following technical means: a forklift trailer towing device, including a support frame, guide rods, connecting plate, mounting block, hook, pin, threaded rod, lifting block, connecting frame, sliding plate, second bolt and second nut. Multiple guide rods distributed along a rectangular direction are fixed to the right side of the support frame. A connecting plate is slidably arranged between the multiple guide rods. The mounting block is fixed to one side of the connecting plate. The hook is fixed to one side of the mounting block with its opening facing upward. The pin is slidably arranged on the support frame, with one end extending out of the bottom of the support frame. The threaded rod is threaded onto one end of the pin and located below the support frame. The lifting block is slidably and rotatably sleeved in the middle of the pin. Its up and down sliding stroke is constrained by the support frame. The connecting frame is rotatably arranged on the left side of the lifting block. The sliding plate is slidably arranged inside the connecting frame and locked and fixed by the second bolt and second nut. Multiple mounting holes are opened on the sliding plate along its length direction.

[0007] In a preferred embodiment of the present invention, a spring and a damper are further included. Each guide rod is fitted with a spring, and the two ends of the spring are respectively connected to the support frame and the connecting plate. The damper is disposed between the support frame and the connecting plate, wherein the fixed end of the damper is connected to the support frame and the movable end is connected to the connecting plate.

[0008] In a preferred embodiment of the present invention, a sliding block, a first bolt, and a first nut are also included. The sliding block is slidably disposed on the upper part of the hook and is locked and fixed by the first bolt and the first nut. One end of the sliding block is close to the right side of the hook to form a closed structure for the opening of the hook. The upper part of the mounting block is provided with a space for accommodating the sliding block to slide in.

[0009] In a preferred embodiment of this utility model, a damping ring is provided on the outside of the guide rod.

[0010] In a preferred embodiment of this invention, the spring is a high-strength compression spring.

[0011] In a preferred embodiment of this utility model, the damper is a hydraulic damper.

[0012] Beneficial effects: 1. By setting up a liftable lifting block, a rotatable connecting frame and an adjustable sliding plate, and with a quick connection structure of pin and threaded rod, multi-directional adjustable connection between forklift and trailer vehicles can be realized, which facilitates quick connection between trailer and forklift, greatly reduces the space requirements and operation threshold of trailer rescue, can effectively adapt to narrow or complex working environments, and significantly improves the flexibility and applicability of trailer rescue.

[0013] 2. By incorporating springs and dampers, the impact forces generated during trailer start-up, braking, or travel on uneven surfaces can be effectively buffered, reducing the dynamic load on the forklift structure and improving the stability of the trailer process.

[0014] 3. Through the cooperation of the sliding block, the first bolt and the first nut, the upper opening of the forklift frame can be closed after the hook hooks onto the forklift frame, forming an effective anti-detachment structure. This prevents the hooked forklift frame components from accidentally coming off during towing due to vibration, bumps or changes in force, significantly improving the safety and reliability of the connection and avoiding hook-off accidents. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the mounting block, hook, and sliding block components of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the pin, threaded rod, and lifting block components of this utility model.

[0018] Figure 4 This is a partial sectional view of the connecting frame component of this utility model.

[0019] The components in the attached diagram are labeled as follows: 1. Support frame, 2. Guide rod, 3. Spring, 4. Damper, 5. Connecting plate, 6. Mounting block, 7. Hook, 8. Sliding block, 9. First bolt, 91. First nut, 10. Pin, 11. Threaded rod, 12. Lifting block, 13. Connecting frame, 14. Sliding plate, 15. Second bolt, 151. Second nut. Detailed Implementation

[0020] Example: A forklift trailer towing device, such as Figures 1-4 As shown, the system includes a support frame 1, guide rods 2, connecting plate 5, mounting block 6, hook 7, pin 10, threaded rod 11, lifting block 12, connecting frame 13, sliding plate 14, second bolt 15, and second nut 151. Four guide rods 2, distributed along a rectangular direction, are fixedly connected to the right side of the support frame 1. A connecting plate 5 is slidably arranged between the four guide rods 2, and damping rings are provided on the outside of the guide rods 2 to increase the damping of the connecting plate 5 during sliding and improve the smoothness of movement. The mounting block 6 is fixedly connected to the right side of the connecting plate 5, and the hook 7 is fixedly connected to the right side of the mounting block 6, with its opening facing upwards, responsible for hooking the forklift frame. The pin 10 is slidably arranged on the support frame 1, with its lower end extending out of the bottom of the support frame 1. The threaded rod 11 is threaded onto the pin. The lower end of the pin 10 is located below the support frame 1. The threaded rod 11 limits the axial movement of the pin 10 to prevent it from accidentally coming out during use. The lifting block 12 is slidably and rotatably sleeved in the middle of the pin 10. Its up and down sliding stroke is constrained by the support frame 1, thereby realizing the controllable lifting of the lifting block 12. The connecting frame 13 is rotatably set on the left side of the lifting block 12. The sliding plate 14 is slidably set inside the connecting frame 13 and locked and fixed by the second bolt 15 and the second nut 151. The sliding plate 14 has multiple mounting holes distributed along its length direction. The extension length of the sliding plate 14 can be adjusted according to the traction distance requirement. The second bolt 15 is inserted into the mounting hole at the appropriate position for positioning and locking, so as to realize the flexible adjustment of the traction length.

[0021] like Figure 1 and Figure 2 As shown, it also includes a spring 3 and a damper 4. Each guide rod 2 is fitted with a spring 3. The left and right ends of the spring 3 are connected to the support frame 1 and the connecting plate 5, respectively, to provide buffering and restoring force for the connecting plate 5. The spring 3 is a high-strength compression spring. The damper 4 is set between the support frame 1 and the connecting plate 5. The fixed end of the damper 4 is connected to the support frame 1, and the movable end is connected to the connecting plate 5 to reduce the impact force caused by the starting, braking or road bumps of the trailer vehicle during the trailer operation, and improve the traction stability. The damper 4 is a hydraulic damper with good buffering and rebound performance.

[0022] like Figure 1 and Figure 2As shown, it also includes a sliding block 8, a first bolt 9, and a first nut 91. The sliding block 8 is slidably disposed on the upper part of the hook 7 and is locked and fixed by the first bolt 9 and the first nut 91. The right end of the sliding block 8 is close to the right part of the hook 7, forming a closed structure for the opening of the hook 7, preventing the hooked forklift frame from coming off due to vibration or angle change during dragging, thus improving connection safety. The upper part of the mounting block 6 is provided with a space for accommodating the sliding block 8 to slide in.

[0023] In use, the user first unscrews the first nut 91 and the first bolt 9 to release the locking of the sliding block 8. Then, slide the sliding block 8 to the left so that it slides into the upper receiving space of the mounting block 6, avoiding the opening of the hook 7. Next, use the hook 7 to hook the fixed part of the forklift frame, ensuring that the hook is in place. After hooking, slide the sliding block 8 to the right to return to the initial position, so that it blocks the opening of the hook 7, restricting the hooked forklift frame part inside the hook 7 to prevent it from coming out. Then, screw on the first bolt 9 and the first nut 91 to re-lock the sliding block 8 onto the hook 7.

[0024] Then unscrew the second nut 151 and the second bolt 15 to release the locking of the sliding plate 14. Pull out the sliding plate 14 to the left by an appropriate length. Then, lock the sliding plate 14 back onto the connecting frame 13 using the second bolt 15 and the second nut 151. Then, install the sliding plate 14 onto the trailer vehicle. During the installation process, the lifting block 12 can be slid up and down and the connecting frame 13 can be rotated up and down to allow the connecting frame 13 to drive the sliding plate 14 to flexibly adjust its height and angle, ensuring that the left end of the sliding plate 14 is accurately aligned with and contacts the installation part of the trailer vehicle, thus achieving a quick and convenient installation docking.

[0025] At this time, the pin 10 passes through the support frame 1 and the lifting block 12, and the lower end is locked and limited by the threaded rod 11, so that the connecting frame 13 and the lifting block 12 form a stable connection, thereby connecting the hook 7 and the sliding plate 14 into one unit. The forklift and the trailer vehicle can achieve a reliable traction connection through the device, and the trailer operation can begin.

[0026] During towing, if the towing vehicle starts, brakes, or passes over uneven road surfaces, the connecting plate 5 will slide left and right along the guide rod 2, compressing or stretching the spring 3. The damper 4 will simultaneously absorb the impact energy, improving traction stability. At the same time, the lifting block 12 can slide up and down along the pin 10, and the connecting frame 13 can rotate around the lifting block 12 as the axis to adapt to changes in different heights and angles, ensuring stable connection.

Claims

1. A trailer towing device for forklifts, characterized in that, The system includes a support frame (1), guide rods (2), connecting plate (5), mounting block (6), hook (7), pin (10), threaded rod (11), lifting block (12), connecting frame (13), sliding plate (14), second bolt (15), and second nut (151). Multiple guide rods (2) distributed along a rectangular direction are fixed to the right side of the support frame (1). A connecting plate (5) is slidably arranged between the multiple guide rods (2). The mounting block (6) is fixed to one side of the connecting plate (5), and the hook (7) is fixed to one side of the mounting block (6), with its opening facing upwards. The pin (10) is slidably arranged... Placed on the support frame (1), one end of which extends out of the bottom of the support frame (1), the threaded rod (11) is threaded at one end of the pin (10) and located below the support frame (1), the lifting block (12) slides and rotates in the middle of the pin (10), and its up and down sliding stroke is constrained by the support frame (1), the connecting frame (13) is rotatably set on the left side of the lifting block (12), the sliding plate (14) is slidably set inside the connecting frame (13) and locked and fixed by the second bolt (15) and the second nut (151), and the sliding plate (14) has multiple mounting holes distributed along its length.

2. A forklift trailer towing device according to claim 1, characterized in that, It also includes a spring (3) and a damper (4). Each guide rod (2) is fitted with a spring (3). The two ends of the spring (3) are connected to the support frame (1) and the connecting plate (5) respectively. The damper (4) is set between the support frame (1) and the connecting plate (5). The fixed end of the damper (4) is connected to the support frame (1), and the movable end is connected to the connecting plate (5).

3. A forklift trailer towing device according to claim 2, characterized in that, It also includes a sliding block (8), a first bolt (9) and a first nut (91). The sliding block (8) is slidably disposed on the upper part of the hook (7) and locked and fixed by the first bolt (9) and the first nut (91). One end of the sliding block (8) is close to the right side of the hook (7) to form a closed structure for the opening of the hook (7). The upper part of the mounting block (6) is provided with a space for accommodating the sliding block (8) to slide in.

4. A forklift trailer towing device according to claim 3, characterized in that, The guide rod (2) is equipped with a damping ring on the outside.

5. A forklift trailer towing device according to claim 4, characterized in that, Spring (3) is a high-strength compression spring.

6. A forklift trailer towing device according to claim 5, characterized in that, The damper (4) is a hydraulic damper.

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