Safety shackle for hoisting installation of crane

Abstract

The utility model relates to the technical field of shackles, and discloses a safety shackle for hoisting and mounting of a crane, which comprises a shackle body, a fixed block is fixedly connected to the bottom of the shackle body, a pin shaft is inserted into the inner wall of the fixed block, a positioning block is fixedly connected to one end of the pin shaft, and a limiting groove is formed in the inner wall of the fixed block. By pulling the handle, the fixing rod is driven to move, the limiting plate moves, the spring is extruded, the spring is compressed, the limiting rod enters the fixing hole, then the pin shaft is inserted into the fixing block, the position of the pin shaft is limited through the protruding plate, it is guaranteed that the fixing block is aligned with the position of the through hole of the pin shaft, and therefore the pin shaft can be fixed. Then the handle is loosened, the spring elastically resets to push the limiting plate to move, the limiting rod penetrates through the fixing block and the pin shaft through the through hole, the pin shaft is locked, safety accidents caused by accidental loosening in the hoisting process can be effectively prevented, and the safety and reliability of hoisting operation of the crane are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shackle, especially to a safety shackle for crane hoisting and installation. BACKGROUND

[0002] The safety shackle is usually made of high-strength material, such as alloy steel or stainless steel, and has high load capacity and durability. The shackle can be divided into straight and oval shapes according to its shape, and pin type and bolt type according to the form of the movable pin shaft. The bolt type is more commonly used.

[0003] When the shackle is used, the pin shaft is first inserted into the inside of the shackle, and the end of the pin shaft is connected and locked with the nut. However, when hoisting the goods, the steel wire rope will generate friction force with the surface of the pin shaft, which will cause the pin shaft to rotate. The connection between the end nut of the pin shaft will become loose, and even may completely separate, increasing the safety hazard in the hoisting operation. SUMMARY

[0004] To solve the above technical problems, the utility model provides a safety shackle for crane hoisting and installation.

[0005] The utility model adopts the following technical scheme: a safety shackle for crane hoisting and installation, comprising a shackle body, a fixed block is fixedly connected to the bottom of the shackle body, a pin shaft is inserted into the inner wall of the fixed block, a positioning block is fixedly connected to one end of the pin shaft, a limiting groove is opened in the inner wall of the fixed block, a convex plate is fixedly connected to the surface of the pin shaft, through holes are opened in the inner walls of the fixed block and the pin shaft, and a fixed assembly is arranged at the right end of the fixed block.

[0006] Through the above technical scheme, the convex plate is slid into the inside of the limiting groove, the positioning block is pushed to make the pin shaft enter the inside of the fixed block, the position of the pin shaft is limited by the positioning block, the position of the through hole of the fixed block and the pin shaft is aligned by the limiting groove, and subsequent locking is facilitated.

[0007] As a further improvement of the above scheme, the fixed assembly comprises a fixed plate, a limiting hole is opened in the left end of the fixed plate, a fixed hole is opened in the inner wall of the fixed plate, a handle is arranged at the right end of the fixed plate, a limiting ring is fixedly connected to the inner wall of the fixed hole, a fixed rod is fixedly connected to the left end of the handle, a spring is arranged in the inside of the fixed hole, a limiting plate is fixedly connected to the end of the fixed rod away from the handle, and a limiting rod is fixedly connected to the left end of the limiting plate.

[0008] Through the above technical scheme, by pulling the handle, the fixed rod is driven to move, the limiting plate is moved and the spring is extruded, the spring is compressed, the limiting rod enters the inside of the fixed hole, then the pin shaft is inserted into the inside of the fixed block, the position of the pin shaft is limited by the protruding plate, the position of the through hole of the fixed block and the pin shaft is aligned, then the handle is loosened, the spring is elastically reset to push the limiting plate to move, the limiting rod penetrates through the fixed block and the pin shaft through the through hole, the pin shaft is locked, safety accidents caused by accidental loosening during hoisting can be effectively prevented.

[0009] As a further improvement of the above scheme, the left end of the fixed plate is fixedly connected with the surface of the fixed block, and the surface of the fixed rod is slidably connected with the inner wall of the limiting ring.

[0010] As a further improvement of the above scheme, the right end of the spring is fixedly connected with the left end of the limiting ring, and the left end of the spring is in contact with the right end of the limiting plate.

[0011] As a further improvement of the above scheme, the surface of the limiting plate is slidably connected with the inner wall of the fixed hole, and the surface of the limiting rod is slidably connected with the inner wall of the limiting hole.

[0012] Through the above technical scheme, the limiting hole limits the limiting rod, so that the limiting rod can only move linearly, and accurate penetration of the fixed block and the pin shaft is ensured.

[0013] As a further improvement of the above scheme, one end of the limiting rod penetrates through the fixed block and the pin shaft through the through hole.

[0014] Through the above technical scheme, when the limiting rod penetrates through the fixed block and the pin shaft, the pin shaft is locked, the pin shaft is prevented from loosening, and the safety during hoisting is improved.

[0015] As a further improvement of the above scheme, the surface of the protruding plate is slidably connected with the inner wall of the limiting groove, and the size of the protruding plate is matched with the size of the limiting groove.

[0016] Through the above technical scheme, the protruding plate and the limiting groove limit the position of the pin shaft, and the pin shaft is prevented from rotating.

[0017] Compared with the prior art, the beneficial effects of the utility model lie in:

[0018] This utility model, by setting a protruding plate and a fixing component, specifically, moves the fixing rod by pulling the handle, causing the limiting plate to move and compress the spring. This compresses the spring, allowing the limiting rod to enter the fixing hole. Then, a pin is inserted into the fixing block. The protruding plate limits the position of the pin, ensuring alignment between the fixing block and the pin's through hole. Releasing the handle causes the spring to elastically return to its original position, pushing the limiting plate to move. This allows the limiting rod to pass through the through hole, penetrating both the fixing block and the pin, thus locking the pin. This effectively prevents accidents caused by accidental loosening during hoisting, improving the safety and reliability of crane hoisting operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the present invention.

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0022] Figure 4 This is a schematic diagram of the fixing plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Buckle body; 2. Fixing block; 3. Pin; 4. Positioning block; 5. Limiting groove; 6. Protruding plate; 7. Through hole; 8. Fixing assembly; 801. Fixing plate; 802. Limiting hole; 803. Fixing hole; 804. Handle; 805. Limiting ring; 806. Fixing rod; 807. Spring; 808. Limiting plate; 809. Limiting rod. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figures 1-5The embodiment is a safety shackle for hoisting and installing a crane, comprising a shackle body 1, a fixed block 2 fixedly connected to the bottom of the shackle body 1, a pin shaft 3 inserted into the inner wall of the fixed block 2, a positioning block 4 fixedly connected to one end of the pin shaft 3, a limiting groove 5 formed in the inner wall of the fixed block 2, a protruding plate 6 fixedly connected to the surface of the pin shaft 3, through holes 7 formed in the inner walls of the fixed block 2 and the pin shaft 3, and a fixing assembly 8 arranged at the right end of the fixed block 2.

[0029] The fixing assembly 8 comprises a fixed plate 801, a limiting hole 802 formed in the left end of the fixed plate 801, a fixed hole 803 formed in the inner wall of the fixed plate 801, a handle 804 arranged at the right end of the fixed plate 801, a limiting ring 805 fixedly connected to the inner wall of the fixed hole 803, a fixed rod 806 fixedly connected to the left end of the handle 804, a spring 807 arranged in the interior of the fixed hole 803, a limiting plate 808 fixedly connected to the end of the fixed rod 806 away from the handle 804, a limiting rod 809 fixedly connected to the left end of the limiting plate 808, and the pin shaft 3 is inserted into the interior of the fixed block 2, the position of the pin shaft 3 is limited by the protruding plate 6, the through holes 7 of the fixed block 2 and the pin shaft 3 are aligned, and the subsequent locking is facilitated.

[0030] The left end of the fixed plate 801 is fixedly connected to the surface of the fixed block 2, and the surface of the fixed rod 806 is in sliding connection with the inner wall of the limiting ring 805.

[0031] The right end of the spring 807 is fixedly connected to the left end of the limiting ring 805, and the left end of the spring 807 is in contact with the right end of the limiting plate 808, when disassembly is needed, the handle 804 is pulled to move the fixed rod 806, the limiting plate 808 is moved and the spring 807 is compressed, the limiting rod 809 is inserted into the interior of the fixed hole 803, and the unlocking is completed.

[0032] The surface of the limiting plate 808 is in sliding connection with the inner wall of the fixed hole 803, and the surface of the limiting rod 809 is in sliding connection with the inner wall of the limiting hole 802.

[0033] One end of the limiting rod 809 penetrates through the fixed block 2 and the pin shaft 3 through the through holes 7.

[0034] The surface of the convex plate 6 is in sliding connection with the inner wall of the limiting groove 5, and the size of the convex plate 6 is matched with the size of the limiting groove 5.

[0035] The implementation principle of the safety shackle for hoisting and installation of the crane in the embodiment of the application is as follows: when in use, first, the handle 804 is pulled to drive the fixed rod 806 to move, so that the limiting plate 808 moves and extrudes the spring 807, the spring 807 is compressed, the limiting rod 809 enters the inside of the fixed hole 803, then the pin shaft 3 is inserted into the inside of the fixed block 2, the position of the pin shaft 3 is limited by the convex plate 6, the position of the through hole 7 of the fixed block 2 and the pin shaft 3 is aligned, then the handle 804 is loosened, the spring 807 is elastically reset to drive the limiting plate 808 to move, the limiting rod 809 penetrates through the fixed block 2 and the pin shaft 3 through the through hole 7, the pin shaft 3 is locked, the safety accidents caused by accidental loosening in the hoisting process can be effectively prevented, and the safety and reliability of the hoisting operation of the crane are improved, when disassembly is needed, the handle 804 is pulled to drive the fixed rod 806 to move, so that the limiting plate 808 moves and extrudes the spring 807, the spring 807 is compressed, the limiting rod 809 enters the inside of the fixed hole 803, and the unlocking is completed, the pin shaft 3 is pulled out through the positioning block 4, the operation is convenient and fast, and the working efficiency is improved.

[0036] The above embodiment is only a preferred embodiment of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial change and replacement made by the person skilled in the art on the basis of the utility model belongs to the range of protection of the utility model.

Claims

1. A safety shackle for hoist installation, characterized in that, The application relates to a buckle body (1), a fixed block (2) is fixedly connected to the bottom of the buckle body (1), a pin shaft (3) is inserted into the inner wall of the fixed block (2), a positioning block (4) is fixedly connected to one end of the pin shaft (3), a limiting groove (5) is formed in the inner wall of the fixed block (2), a protruding plate (6) is fixedly connected to the surface of the pin shaft (3), through holes (7) are formed in the inner walls of the fixed block (2) and the pin shaft (3), and a fixing assembly (8) is arranged at the right end of the fixed block (2).

2. A safety hook for hoist installation according to claim 1, characterized in that: The fixing assembly (8) comprises a fixing plate (801), a limiting hole (802) is formed in the left end of the fixing plate (801), a fixing hole (803) is formed in the inner wall of the fixing plate (801), a handle (804) is arranged at the right end of the fixing plate (801), a limiting ring (805) is fixedly connected to the inner wall of the fixing hole (803), a fixing rod (806) is fixedly connected to the left end of the handle (804), a spring (807) is arranged in the fixing hole (803), a limiting plate (808) is fixedly connected to the end, away from the handle (804), of the fixing rod (806), and a limiting rod (809) is fixedly connected to the left end of the limiting plate (808).

3. A safety hook for hoist installation according to claim 2, characterized in that: The left end of the fixing plate (801) is fixedly connected to the surface of the fixed block (2), and the surface of the fixing rod (806) is in sliding connection with the inner wall of the limiting ring (805).

4. A safety hook for hoist installation according to claim 2, characterized in that: The right end of the spring (807) is fixedly connected to the left end of the limiting ring (805), and the left end of the spring (807) is in contact with the right end of the limiting plate (808).

5. A safety hook for hoist installation according to claim 2, characterized in that: The surface of the limiting plate (808) is in sliding connection with the inner wall of the fixing hole (803), and the surface of the limiting rod (809) is in sliding connection with the inner wall of the limiting hole (802).

6. A safety hook for hoist installation according to claim 2, characterized in that: One end of the limiting rod (809) penetrates through the fixed block (2) and the pin shaft (3) through the through hole (7).

7. A safety hook for hoist installation according to claim 1, characterized in that: The surface of the protruding plate (6) is in sliding connection with the inner wall of the limiting groove (5), and the size of the protruding plate (6) is matched with the size of the limiting groove (5).

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