Folding lightweight hoisting clamp

Abstract

This utility model discloses a foldable lightweight lifting clamp, which includes a traction ring (1). The foldable lightweight lifting clamp is characterized in that: connecting plates (2) are sleeved on both sides of the surface of the traction ring (1), and clamping arms A (3) are hinged at the bottom of the front of the left connecting plate (2) and the bottom of the back of the right connecting plate (2), and the top of the back of the front clamping arm A (3) and the top of the front of the rear clamping arm A (3) are hinged. The bottom of the front and back of the clamping arm A (3) is provided with openings (5), and a locking rod (7) is sleeved inside the opening (5) at the top. The front end away from the middle and the rear end near the middle of the locking rod (7) are provided with slots (6), and clamping arms B (4) are provided outside the slots (6). An adjustment mechanism is provided on the opposite side of the two clamping arms B (4).

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology, and specifically relates to a foldable lightweight hoisting clamp. Background Technology

[0002] Lightweight lifting clamps are typically made of high-strength materials such as alloy steel and feature a fixed clamping arm length. They rely on mechanical structures or cranes to achieve clamping functionality. Their core components include rigid clamping plates, locking devices, and lifting interfaces. They clamp objects through single-point or double-point contact and are suitable for conventional lifting scenarios such as warehousing and material handling, and production line assembly. These clamps rely on mechanical rigidity to ensure stability. However, traditional lightweight lifting clamps suffer from insufficient adaptability due to their fixed clamping arm length. During operation, it is necessary to frequently change clamps of different specifications or add pads to adjust the height, which is cumbersome and time-consuming. They lack flexibility in handling lifting scenarios of different sizes or heights, which can easily lead to reduced efficiency. Furthermore, the design of traditional lightweight lifting clamps with a single or few clamping plates results in a limited clamping contact surface, which can lead to concentrated force and the risk of object slippage or localized deformation. To address the problems mentioned above, we propose a foldable lightweight lifting clamp. Utility Model Content

[0003] The purpose of this utility model is to provide a foldable lightweight lifting clamp, which has the advantages of adjustable clamp arm length and adjustable clamp plate.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a foldable lightweight lifting clamp, including a traction ring, with connecting plates sleeved on both sides of the surface of the traction ring, and clamping arms A are hinged at the bottom of the front side of the left connecting plate and the bottom of the back side of the right connecting plate, and at the top of the back side of the front clamping arm A and the top of the front side of the rear clamping arm A, respectively. Openings are provided at the bottom of the front and back sides of the clamping arm A, and a locking rod is sleeved inside the top opening. The front end away from the middle and the rear end near the middle of the locking rod are provided with slots, and clamping arms B are provided outside the slots. An adjustment mechanism is provided on the opposite side of the two clamping arms B.

[0005] The above technical solution involves: unscrewing the limit nut, removing the clamping rod, adjusting to the required length, inserting the clamping rod into the corresponding openings and slots of clamping arms A and B, and tightening the limit nut. The clamping arm design, which allows for vertical length adjustment, significantly improves the flexibility of use and work efficiency. Its telescopic structure can quickly adapt to different lifting requirements, and height adjustment can be completed without replacing parts, reducing operation steps. When folded, it is compact in size, easy to carry and store, and is especially suitable for work scenarios with limited space or frequent movement. It maintains lightweight characteristics, reduces the intensity of manual handling, and is widely applicable to diverse industrial fields such as logistics and maintenance.

[0006] The present invention is further configured such that the adjustment structure includes a clamping box, the clamping box is bolted to the bottom of the two clamping arms B on opposite sides, the top of the inside of the clamping box is provided with a slot, a buckle is engaged inside the slot in the middle, a spring is bolted to the bottom of the buckle, a moving block is bolted to the bottom of the spring, and a clamping plate is bolted to the side of the clamping box and the moving block away from the clamping arms B.

[0007] The above technical solution employs a clamping box. When the moving block is pulled outward, the buckle loses its engagement with the slot. The buckle moves along the path of the slot and the top of the clamping box, causing the spring to contract. After adjusting to the required length, the buckle moves to the vicinity of the corresponding slot, the spring rebounds, and the buckle engages with the corresponding slot. The foldable and stretchable clamping plate design allows for free adjustment of the clamping length, flexibly adapting to different sizes of objects to be lifted. The three clamping plates on both sides work synchronously to form a multi-point uniform force distribution, significantly improving clamping stability and safety, effectively preventing objects from slipping or being deformed by local pressure. The folded structure is compact, facilitating storage and transportation, and saving operating space.

[0008] The present invention is further configured such that a slider is bolted to the bottom of the movable block, and the front and rear ends of the bottom of the clamping box are provided with sliding grooves, and the inside of the sliding grooves is slidably connected to the surface of the slider.

[0009] The above technical solution uses sliders and grooves to limit the movement of the moving block.

[0010] The present invention is further configured such that the rear end of the surface of the clamp rod away from the middle is threaded.

[0011] By adopting the above technical solution, a limit nut can be set to limit the movement of the clamp rod by setting it as a thread.

[0012] The present invention is further configured such that a limit nut is threadedly connected to the rear end of the clamping rod surface away from the middle.

[0013] The above technical solution involves setting a limit nut to limit the movement of the locking rod.

[0014] The present invention is further configured such that a damper is sleeved inside the spring.

[0015] The above technical solution involves setting a damper to limit the movement of the spring.

[0016] The present invention is further configured such that three clamps are located on one side.

[0017] By adopting the above technical solution, by setting it to three points, multiple points of uniform force can be formed, which greatly improves the clamping stability and safety.

[0018] The present invention is further provided that an anti-slip pad is adhered to the inner side of the clamping plate.

[0019] The above technical solution, by setting anti-slip pads, can prevent the clamps from slipping when held.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. This utility model significantly improves the flexibility and efficiency of use through the design of the clamp arm with adjustable length. Its telescopic structure can quickly adapt to the hoisting needs of different heights. Height adjustment can be completed without changing parts, reducing operation steps. The compact size after folding makes it easy to carry and store. It is especially suitable for work scenarios with limited space or frequent movement. It maintains lightweight characteristics, reduces the intensity of manual handling, and is widely applicable to diverse industrial fields such as logistics and maintenance.

[0022] 2. This utility model features a foldable and stretchable clamping plate design, which allows for free adjustment of the clamping length and flexible adaptation to objects of different sizes. The three clamping plates on both sides work in sync to form a multi-point uniform force distribution, which greatly improves the clamping stability and safety, effectively preventing objects from slipping or being deformed by local pressure. The structure is compact after folding, making it easy to store and transport, and saving working space. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0025] Figure 3 This is a right-side sectional view of a partial structure of this utility model;

[0026] Figure 4 This is a right view of a partial structure of this utility model.

[0027] Reference numerals in the attached diagram: 1. Traction ring; 2. Connecting plate; 3. Clamping arm A; 4. Clamping arm B; 5. Opening; 6. Slot; 7. Locking rod; 8. Clamping box; 9. Locking groove; 10. Buckle; 11. Spring; 12. Moving block; 13. Clamping plate; 14. Sliding block; 15. Slide groove; 16. Limiting nut; 17. Damper; 18. Anti-slip pad. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] refer to Figure 1 , Figure 2 , Figure 4The foldable lightweight lifting clamp includes a traction ring 1. Connecting plates 2 are sleeved on both sides of the surface of the traction ring 1. Clamping arms A3 are hinged to the bottom of the front of the left connecting plate 2 and the bottom of the back of the right connecting plate 2. The top of the back of the front clamping arm A3 and the top of the front of the rear clamping arm A3 are also hinged. Openings 5 ​​are provided at the bottom of the front and back of the clamping arm A3. A locking rod 7 is sleeved inside the top opening 5. The front end away from the middle and the rear end near the middle of the surface of the locking rod 7 are provided with slots 6. Clamping arms B4 are provided outside the slots 6. An adjustment mechanism is provided on the opposite side of the two clamping arms B4. Unscrew the limit nut 16, remove the locking rod 7, adjust to the required length, insert the locking rod 7 into the corresponding openings 5 ​​and slots 6 of the clamping arms A3 and B4, and tighten the limit nut 16. The clamping arm design with adjustable length significantly improves the flexibility of use and work efficiency. Its telescopic structure can quickly adapt to the lifting needs of different heights.

[0031] refer to Figure 4 The rear end of the surface of the lever 7, away from the middle, is threaded. By setting it as a thread, the limit nut 16 can be set to limit the lever 7.

[0032] refer to Figure 4 The rear end of the clamp rod 7, away from the middle, is threaded with a limit nut 16. By setting the limit nut 16, the clamp rod 7 can be limited.

[0033] Brief description of usage: When clamping objects of different heights, unscrew the limit nut 16, remove the clamping rod 7, adjust to the required length, insert the clamping rod 7 into the corresponding opening 5 and slot 6 of clamping arm A3 and clamping arm B4, and tighten the limit nut 16. The clamping arm design with adjustable length significantly improves the flexibility of use and work efficiency. Its telescopic structure can quickly adapt to different lifting needs. Height adjustment can be completed without replacing parts, reducing operation steps. The compact size after folding makes it easy to carry and store. It is especially suitable for work scenarios with limited space or frequent movement. It maintains lightweight characteristics, reduces the intensity of manual handling, and is widely applicable to diverse industrial fields such as logistics and maintenance.

[0034] Example 2:

[0035] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4The foldable lightweight lifting clamp has an adjustable structure including a clamp box 8, which is bolted to the bottom of the two clamping arms B4 on opposite sides. The top of the inside of the clamp box 8 has a slot 9, and a buckle 10 is engaged inside the slot 9. A spring 11 is bolted to the bottom of the buckle 10, and a moving block 12 is bolted to the bottom of the spring 11. A clamping plate 13 is bolted to the side of the clamp box 8 and the moving block 12 away from the clamping arm B4. Pulling the moving block 12 outward causes the buckle 10 to lose engagement with the slot 9. The buckle 10 moves along the path of the slot 9 and the top of the inside of the clamp box 8, and the spring 11 retracts. After adjusting to the required length, the buckle 10 moves to the vicinity of the corresponding slot 9, the spring 11 rebounds, and the buckle 10 engages with the corresponding slot 9. The foldable and stretchable clamping plate 13 design allows for free adjustment of the clamping length, flexibly adapting to lifting objects of different sizes. The three clamping plates 13 on both sides work synchronously to form a multi-point uniform force distribution.

[0036] refer to Figure 2 , Figure 3 The bottom of the movable block 12 is bolted with a slider 14. The front and rear ends of the bottom of the clamp box 8 are provided with sliding grooves 15, and the inside of the sliding grooves 15 is slidably connected to the surface of the slider 14. By setting the slider 14 and the sliding grooves 15, the movement of the movable block 12 can be limited.

[0037] refer to Figure 2 , Figure 3 A damper 17 is fitted inside the spring 11, which can limit the movement of the spring 11.

[0038] refer to Figure 1 , Figure 4 The clamping plate 13 on one side is set to three. By setting it to three, multiple points of uniform force can be formed, which greatly improves the clamping stability and safety.

[0039] refer to Figure 1 , Figure 2 , Figure 4 An anti-slip pad 18 is glued to the inside of the clamping plate 13. By setting the anti-slip pad 18, the clamping plate 13 can be prevented from slipping when clamped.

[0040] Brief description of usage: When clamping objects of different lengths, pull the moving block 12 outward, and the buckle 10 will lose engagement with the locking slot 9. The buckle 10 will move along the path of the locking slot 9 and the top of the inside of the clamping box 8, and the spring 11 will contract. After adjusting to the required length, the buckle 10 will move to the vicinity of the corresponding locking slot 9, and the spring 11 will rebound, and the buckle 10 will engage with the corresponding locking slot 9. The foldable and stretchable clamping plate 13 design allows for free adjustment of the clamping length, flexibly adapting to different sizes of objects to be lifted. The three clamping plates 13 on both sides work synchronously to form a multi-point uniform force, greatly improving clamping stability and safety, effectively preventing objects from slipping or being deformed by local pressure. The structure is compact after folding, making it easy to store and transport, and saving working space.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A foldable lightweight lifting clamp, including a traction ring (1), characterized in that: Connecting plates (2) are sleeved on both sides of the surface of the traction ring (1). Clamping arms A (3) are hinged to the bottom of the front of the left connecting plate (2) and the bottom of the back of the right connecting plate (2). Clamping arms A (3) are hinged to the top of the back of the front clamping arm A (3) and the top of the front of the rear clamping arm A (3). Openings (5) are provided at the bottom of the front and back of the clamping arm A (3). A locking rod (7) is sleeved inside the opening (5) at the top. A slot (6) is provided on the front end away from the middle and the rear end near the middle of the locking rod (7). A clamping arm B (4) is provided outside the slot (6). An adjustment mechanism is provided on the opposite side of the two clamping arms B (4).

2. The foldable lightweight lifting clamp according to claim 1, characterized in that: The adjustment mechanism includes a clamp box (8), which is bolted to the bottom of the two clamping arms B (4) on opposite sides. A slot (9) is provided at the top inside the clamp box (8), and a buckle (10) is engaged inside the slot (9) in the middle. A spring (11) is bolted to the bottom of the buckle (10), and a moving block (12) is bolted to the bottom of the spring (11). A clamping plate (13) is bolted to the side of the clamp box (8) and the moving block (12) away from the clamping arms B (4).

3. The foldable lightweight lifting clamp according to claim 2, characterized in that: The bottom of the movable block (12) is bolted with a slider (14), and the front and rear ends of the bottom of the clamp box (8) are provided with sliding grooves (15), and the interior of the sliding grooves (15) is slidably connected to the surface of the slider (14).

4. The foldable lightweight lifting clamp according to claim 1, characterized in that: The rear end of the surface of the lever (7) away from the middle is threaded.

5. The foldable lightweight lifting clamp according to claim 4, characterized in that: The rear end of the clamp (7) away from the middle is threaded with a limit nut (16).

6. The foldable lightweight lifting clamp according to claim 2, characterized in that: A damper (17) is fitted inside the spring (11).

7. The foldable lightweight lifting clamp according to claim 2, characterized in that: The clamps (13) located on one side are configured as three.

8. The foldable lightweight lifting clamp according to claim 7, characterized in that: An anti-slip pad (18) is adhered to the inside of the clamp (13).

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