Towing connection device
By designing a traction connection device, utilizing a rotatable and adjustable connection structure and a forklift, the safety hazards of transferring mechanical equipment in tall, flat grain storage facilities were solved, achieving stable and safe transfer of equipment and reducing labor intensity and accident risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-14
AI Technical Summary
In tall, flat-roofed grain storage facilities, traditional mechanical equipment transfer methods pose safety hazards, especially when operating on complex terrain, steep slopes, and narrow roads, which can easily lead to accidents such as slippage and rollover. Furthermore, the limited visibility and increased overall length of existing tractor vehicles result in significant safety issues.
A traction connection device is designed, including a base, a rotating seat, a connecting arm, and a connecting seat. Through the rotatable and adjustable connection structure and the length-adjustable connecting arm, combined with the use of a forklift, stable and resistance-free traction operation is achieved. The limit part and rib plate design prevent the equipment from disengaging, and combined with the forklift's braking system, safety is ensured.
It improves the safety and efficiency of equipment transfer, reduces labor intensity, avoids the blind spot risks and rollover hazards of traditional traction methods, and is suitable for transferring mechanical equipment under complex working conditions. It has good practicality and promotion value.
Smart Images
Figure CN224490553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction equipment technology, and in particular to a traction connection device. Background Technology
[0002] In the operational environment where tall, flat warehouses are the primary grain storage facilities, traditional methods of transferring grain using large machinery such as conveyors, unloaders, grain loader operators, cleaning machines, and grain sieves are no longer sufficient to meet safety requirements. These environmental characteristics, including complex terrain, steep slopes, narrow roads, and obstacles such as flower beds and high-voltage lines, create significant safety hazards associated with traditional manual pushing or towing methods. Manual pushing not only greatly increases labor intensity but also easily leads to slippage accidents on slopes, endangering personnel safety. Using towing vehicles for equipment transfer suffers from limitations due to their long length, poor versatility, and increased overall length when combined with different equipment, increasing the risk of tipping over. Furthermore, the rear-mounted towing structure is prone to disengagement or crushing, especially on inclines and declines. Therefore, an improved solution is urgently needed to improve operational safety, reduce labor intensity, and overcome the shortcomings of existing technologies. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a traction connection device.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A traction connection device includes a base, a rotating seat rotatably disposed on the upper end of the base, the right end of which is hinged to a connecting arm at the left end of the base, and a connecting seat fixed to the left end of the connecting arm; two rectangular through holes extending to the right end are spaced apart at the left end of the base; the upper end of the rotating seat has a first rectangular groove for connection; a screw is threaded to one side of the first rectangular groove, one end of the screw located in the groove is rotatably connected to a pressure plate, and the other end is fixedly connected to a handle; the connecting seat has a second rectangular groove for connection.
[0006] As a preferred technical solution of this utility model, the upper end of the pressure plate is provided with a horizontally extending limiting part.
[0007] As a preferred technical solution of this utility model, the bottom two sides of the rectangular groove are provided with upwardly extending ribs.
[0008] As a preferred technical solution of this utility model, a handle screw is threadedly connected to one side of the rectangular groove.
[0009] As a preferred technical solution of this utility model, the connecting arm is bent so that it can be placed on the base after being flipped upwards and kept still.
[0010] As a preferred technical solution of this utility model, the connecting arm is a length-adjustable structure, which includes a first arm, a second arm fitted on the first arm, and a locking bolt threaded through the second arm for locking the first arm and the second arm.
[0011] As a preferred technical solution of this utility model, the locking bolt is a handle bolt.
[0012] As a preferred technical solution of this utility model, two spaced-apart sleeves are fixedly connected to the left end of the connecting seat, and a second sleeve is fixedly connected to the left end of the connecting arm. The second sleeve is located between the two sleeves and the first sleeve is connected to the second sleeve by a rotating pin.
[0013] As a preferred technical solution of this utility model, the handle is an L-shaped operating lever.
[0014] As a preferred technical solution of this utility model, the rotating seat is connected to the base via a bearing.
[0015] The above technical solution has the following advantages:
[0016] This utility model is designed for use with forklifts. Forklifts are commonly used handling equipment in grain depots, eliminating the need for additional dedicated towing machinery. This not only improves the utilization rate of existing equipment but also enhances operator familiarity and work efficiency. Utilizing the forklift's excellent visibility and low-speed operation, the driver can more clearly observe complex road conditions, ensuring safe driving in dangerous environments such as narrow passages, steep slopes, flower beds, and high-voltage lines. The overall structure is compact and reliably connected, effectively avoiding blind spot risks and rollover hazards inherent in traditional towing methods. The device structure borrows from the pallet lifting principle, and through a rationally designed connection structure, it facilitates efficient transfer... During the process, only one end of the towed equipment needs to be slightly lifted a certain distance to achieve stable and resistance-free towing operations. Combined with the forklift's own braking system, it can effectively prevent safety accidents such as disengagement, slippage, and crushing during uphill and downhill operations. In addition, this utility model has a simple overall structure, low manufacturing cost, and convenient installation and operation. It not only greatly reduces labor intensity but also significantly improves the safety and operational efficiency of large mechanical equipment such as conveyors, unloading machines, grain unloaders, cleaning machines, and grain sieves in grain depots under complex working conditions. It has good practicality, promotion value, and broad application prospects. Attached Figure Description
[0017] Figure 1 This is a front view of one embodiment of the present utility model;
[0018] Figure 2 for Figure 1 Enlarged view of section A;
[0019] Figure 3 for Figure 1 The left view;
[0020] Figure 4 for Figure 1 Top view;
[0021] Figure 5 for Figure 1 A 3D view of the connecting arm flipped up;
[0022] Figure 6 for Figure 5 Enlarged view of section B;
[0023] Figure 7 for Figure 6 A stereoscopic view from another perspective;
[0024] Figure 8 for Figure 7 Enlarged view of section C;
[0025] Figure 9 for Figure 1 A schematic diagram showing the connection between the traction coupling device and the forklift.
[0026] In the picture:
[0027] 1-Base, 2-Rotating seat, 3-Connecting arm, 4-Connecting seat, 5-Rectangular through hole, 6-Rectangular groove one, 7-Screw, 8-Pressure plate, 9-Handle rod, 10-Rectangular groove two, 11-Limiting part, 12-Rib plate, 13-Handle screw, 14-Sleeve one, 15-Sleeve two, 16-Rotating pin, 17-Bearing, 31-Arm rod one, 32-Arm rod two, 33-Locking bolt. Detailed Implementation
[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] Example 1
[0030] As attached Figure 1-9As shown, a traction connection device includes a rectangular strip-shaped base 1, a rotating seat 2 rotatably disposed on the upper end of the base 1, a connecting arm 3 hinged at its right end to the left end of the base 1, and a connecting seat 4 fixedly connected to the left end of the connecting arm 3; two rectangular through holes 5 extending to the right end are spaced apart at the left end of the base 1; the upper end of the rotating seat 2 has a rectangular groove 6 for connection; a screw 7 is threadedly connected to one side of the rectangular groove 6, one end of the screw 7 located in the groove is rotatably connected to a pressure plate 8, and the other end is fixedly connected to a handle 9; the connecting seat 4 has a rectangular groove 10 for connection.
[0031] As a preferred technical solution in this embodiment, in order to further improve safety and prevent the equipment from accidentally coming out of the rectangular groove 6 during the transfer process, the upper end of the pressure plate 8 is provided with a horizontally extending limiting part 11. The limiting part 11 can restrict the upper end of the equipment suspension beam, prevent the equipment suspension beam from detaching from the rectangular groove 6 due to vibration, and ensure the safety of use.
[0032] As a preferred technical solution in this embodiment, the bottom sides of the rectangular groove 6 are provided with upwardly extending ribs 12. The ribs 12 can strengthen the strength of the rotating seat 2 and also provide auxiliary restriction on the pressure plate 8 to prevent the pressure plate 8 from rotating with the following screw 7 during the movement.
[0033] As a preferred technical solution in this embodiment, a handle screw 13 is threadedly connected to one side of the rectangular groove 2 10. When the rectangular groove 2 10 covers the lower cross arm of the lifting fork, the handle screw 13 is rotated to the lower cross arm to prevent the rectangular groove 2 10 from separating from the lower cross arm due to bumps during travel, thereby further improving the safety of use.
[0034] As a preferred technical solution in this embodiment, the connecting arm 3 is a length-adjustable structure. The length-adjustable structure includes a first arm 31, a second arm 32 fitted on the first arm 31, and a locking bolt 33 threaded through the second arm 32 for locking the first arm 31 and the second arm 32. By adopting the connecting arm 3 with a length-adjustable structure, it can meet the needs of various models of forklifts, and also facilitates the storage or short-distance transportation of the traction connection device.
[0035] As a preferred technical solution in this embodiment, the locking bolt 33 is a handle bolt, which is convenient for rotational adjustment.
[0036] As in this embodiment and specific technical solution, two spaced-apart sleeves 14 are fixedly connected to the left end of the connecting seat 4, and a second sleeve 15 is fixedly connected to the left end of the connecting arm 3. The second sleeve 15 is located between the two sleeves 14, and the second sleeve 15 is connected to the sleeves 14 by a rotating pin 16. Obviously, hinges or other connection methods can also be used.
[0037] As a preferred technical solution in this embodiment, the handle 9 adopts an L-shaped operating lever, but obviously it can also adopt a cross lever, etc.
[0038] As a preferred technical solution in this embodiment, the rotating seat 2 is connected to the base 1 via a bearing 17.
[0039] Example 2
[0040] As attached Figure 1-9 As shown, a traction connection device is described, wherein the connecting arm 3 is bent so that it can be flipped upwards and rest against the base 1 for stationary placement. At this point, a forklift can be controlled to insert the two fork arms into the through holes 5 respectively, and then the connecting arm 3 is flipped so that the rectangular groove 10 covers the lower cross arm of the lifting fork frame, thus connecting the traction connection device with the forklift. Subsequently, the forklift can be controlled to move the rectangular groove 6 to below the suspension beam. Then, the fork arms are controlled to rise along with the lifting fork frame, and the rectangular groove 6 lifts the suspension beam upwards, raising the travel wheel at that end of the equipment off the ground. The ground clearance should ideally be 15cm. Then, the screw 7 is rotated to press the pressure plate 8 against the suspension beam of the equipment, allowing the forklift to be controlled for in-plant transfer of the equipment. The rest is basically the same as in Embodiment 1.
[0041] The working process of the traction connection device of this utility model is as follows:
[0042] First, ensure that the rectangular through hole 5 on the base 1 is aligned with the two forks of the forklift, and insert the forks into the rectangular through hole 5. Second, flip the bent connecting arm 3 so that the rectangular groove 10 on the connecting seat 4 covers the lower cross arm of the lifting fork, and fix it by rotating the handle screw 137 to achieve a stable connection between the traction connection device and the forklift. Next, operate the forklift so that the rectangular groove 6 is below the suspension beam of the equipment to be transferred, and raise the forklift to raise the suspension beam until the travel wheel at one end of the equipment is about 15cm off the ground. Then, rotate the L-shaped operating lever to push the screw 7 to tighten the pressure plate 8 to secure the suspension beam. The limiting part 11 prevents the equipment from accidentally falling off due to vibration. Finally, after confirming that all parts are locked in place, the equipment can be transferred within the factory. During this process, the length of the connecting arm 3 can be adjusted as needed by adjusting the locking bolt 33 to adapt to different models of forklifts, while ensuring safety and convenience of use.
[0043] The traction connection device provided by this utility model offers a practical and effective solution to the problems of difficult transfer and prominent safety hazards of large mechanical equipment in grain depot operation environments where tall, flat warehouses are the main grain storage facilities. The device, through its rotatable and adjustable connecting seat 4 and adjustable-length connecting arm 3, can adapt to the connection needs of different forklift models and various equipment, significantly improving its versatility and adaptability. Simultaneously, the locking structure of the pressure plate 8 with a limiting part 11 and the auxiliary limiting design of the rib plate 12 effectively prevent accidental disengagement due to vibration or bumps during equipment transfer, greatly enhancing connection stability and safety. Furthermore, the bent connecting arm 3 design not only facilitates storage and handling but also allows for quick installation and positioning after being flipped over and resting on the base 1. Combined with user-friendly designs such as the handle screw 137 and the L-shaped operating lever, it further enhances operational convenience and work efficiency. In summary, this utility model has the advantages of reasonable structure, simple operation, stable connection, and safety and reliability. It is especially suitable for grain depot operation environments with complex terrain, steep slopes, narrow roads and obstacles. It can effectively reduce labor intensity and avoid safety accidents such as slippage and rollover. It has good application prospects and promotion value.
[0044] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A traction connection device, characterized in that: The device includes a base (1), a rotating seat (2) rotatably mounted on the upper end of the base (1), a connecting arm (3) hinged at the right end of the base (1) at the left end, and a connecting seat (4) fixed to the left end of the connecting arm (3); two rectangular through holes (5) extending to the right end are provided at the left end of the base (1); the upper end of the rotating seat (2) has a rectangular groove (6) for connection; a screw (7) is threaded to one side of the rectangular groove (6), a pressure plate (8) is rotatably connected to one end of the screw (7) located in the groove, and a handle (9) is fixed to the other end; the connecting seat (4) has a rectangular groove (10) for connection.
2. The traction connection device according to claim 1, characterized in that: The upper end of the pressure plate (8) is provided with a horizontally extending limiting part (11).
3. The traction connection device according to claim 1 or 2, characterized in that: The bottom sides of the rectangular groove (6) are provided with upwardly extending ribs (12).
4. The traction connection device according to claim 1 or 2, characterized in that: A handle screw (13) is threaded onto one side of the rectangular groove 2 (10).
5. The traction connection device according to claim 1 or 2, characterized in that: The connecting arm (3) is bent so that it can be flipped upward and rested on the base (1) to achieve static placement.
6. The traction connection device according to claim 1 or 2, characterized in that: The connecting arm (3) is a length-adjustable structure, which includes a first arm (31), a second arm (32) fitted on the first arm (31), and a locking bolt (33) threaded through the second arm (32) for locking the first arm (31) and the second arm (32).
7. The traction connection device according to claim 6, characterized in that: The locking bolt (33) is a handle bolt.
8. The traction connection device according to claim 1 or 2, characterized in that: Two spaced-apart sleeves (14) are fixedly connected to the left end of the connecting seat (4), and a sleeve (15) is fixedly connected to the left end of the connecting arm (3). The sleeve (15) is located between the two sleeves (14), and the sleeve (15) is connected to the sleeves (14) by a rotating pin (16).
9. The traction connection device according to claim 1 or 2, characterized in that: The handle (9) is an L-shaped operating lever.
10. The traction connection device according to claim 1 or 2, characterized in that: The rotating seat (2) is connected to the base (1) via a bearing (17).