Anti-unhooking structure of chain block

Abstract

The utility model discloses an anti-unhooking structure of a chain block, and relates to the technical field of anti-unhooking of chain blocks. The chain block comprises the chain block main body and the anti-falling mechanism, the anti-falling mechanism comprises the first fixing block, the safety of the chain block when the chain block is obliquely pulled or used for hanging a heavy object is remarkably enhanced through the arrangement of the anti-falling mechanism, the inclined plane structure of the anti-falling plate in the anti-falling mechanism can enable a sliding steel wire rope to automatically slide to the bottom of a hook, and the safety of the chain block is improved. The risk that the steel wire rope mistakenly touches the buckle due to shaking is avoided, meanwhile, the position of the anti-falling plate can be flexibly adjusted through cooperation of the sliding block and the sliding groove, the anti-falling effect is further improved, in addition, the shaking amplitude of the steel wire rope is effectively reduced through the damping spring, the possibility that heavy objects are unhooked and fall is reduced, and the operation safety of operators is guaranteed; risks of article damage and property loss are reduced, rapid locking and unlocking of heavy objects are achieved through buckles, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-unhooking of hand chain hoists, in particular to an anti-unhooking structure of a hand chain hoist. Background Art

[0002] A chain hoist is a convenient and practical manual lifting mechanism. It's particularly suitable for lifting small equipment and cargo over short distances in environments without power or in the open air, such as factories and mines. The chain hoist is precisely constructed from a sturdy, wear-resistant alloy steel housing, a hand chain pulley, and a manual chain. By pulling the hand chain clockwise or counterclockwise, heavy objects can be lifted and lowered smoothly.

[0003] Existing hand chain hoists only have a single hook or use a simple buckle lock to prevent the heavy objects from coming off the hook during lifting. However, in the case of oblique pulling, one end of the wire rope that fixes the heavy object may slide onto the buckle. Since the buckle itself is connected to the hook through a rotating shaft, the structural strength is relatively low. Therefore, the buckle directly bears the weight of the heavy object, which can easily cause the buckle to be damaged, and then cause the heavy object to come off the hook and fall, affecting the operator's work safety and easily causing damage to the objects, resulting in property loss. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an anti-unhooking structure for a hand chain hoist to solve the technical problem that the buckle is easily damaged and the heavy object is unhooked and falls when pulling heavy objects at an angle, thereby affecting operational safety and causing property losses.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-unhooking structure for a hand chain hoist, comprising a hand chain hoist main body and an anti-unhooking mechanism, the anti-unhooking mechanism comprising a first fixed block, the first fixed block being engaged with a slider through a sliding groove, the outer surface of the slider being fixedly connected to a second fixed block, an anti-unhooking plate being provided on the top of the second fixed block, a damping spring being provided on one side of the second fixed block, and a baffle being provided at one end of the damping spring.

[0006] By adopting the above technical solution, the flexibility of the slide chute and the slider during the lifting process enables the anti-slip mechanism to better adapt to changes in different angles and positions, thereby improving the anti-slip effect.

[0007] Furthermore, two second fixing blocks are provided, and the two second fixing blocks are symmetrically arranged along the central axis of the first fixing block.

[0008] By adopting the above technical solution and setting two symmetrical second fixed blocks, the overall stability of the anti-slip mechanism can be significantly increased. This layout helps to balance the forces from different directions and prevent the anti-slip mechanism from tilting or twisting when subjected to force, thereby ensuring the safety and reliability of the hand chain hoist during the lifting process.

[0009] Furthermore, the damping springs are provided in two groups, and each group includes two damping springs.

[0010] By adopting the above technical solution, by setting two groups of damping springs, each group containing two springs, the stability of the hand hoist during the lifting process is significantly enhanced. The damping spring can effectively absorb and disperse the vibration and impact force generated by the wire rope or chain during the lifting process.

[0011] Furthermore, the first fixing block and the anti-slip plate are both arc-shaped, and a rubber layer is provided on the outer surface of the anti-slip plate.

[0012] By adopting the above technical solution, the rubber layer has good elasticity and friction, which helps to increase the contact area and friction between the anti-slip plate and the heavy object, thereby more effectively preventing the heavy object from slipping or shifting during the lifting process.

[0013] Furthermore, a chain is provided at the bottom of the hand chain hoist body, a hook is provided at one end of the chain, and the hook is adapted to the first fixed block.

[0014] By adopting the above technical solution, the chain is an important load-bearing and tension-transmitting component during the lifting process. The chain has high strength and wear resistance, can bear the weight of heavy objects and remain stable during the lifting process, ensuring that the heavy objects can be lifted to the designated position safely and accurately.

[0015] Furthermore, one side of the hook is rotatably connected to a buckle via a rotating shaft, and the buckle is ring-shaped.

[0016] By adopting the above technical solution, the rotating shaft connection between the hook and the buckle significantly enhances the flexibility and convenience of the hand hoist during use and improves work efficiency.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The utility model significantly enhances the safety of the hand chain hoist when obliquely pulling or hanging heavy objects by providing an anti-slip mechanism. The inclined structure of the anti-slip plate in the anti-slip mechanism can make the sliding wire rope automatically slide to the bottom of the hook, avoiding the risk of the wire rope accidentally touching the buckle due to shaking. At the same time, the cooperation between the slider and the slide groove enables the anti-slip plate to be flexibly adjusted to its position, further improving the anti-slip effect. In addition, the damping spring effectively reduces the shaking amplitude of the wire rope, making the entire lifting process more stable and controllable, reducing the possibility of heavy objects falling off the hook, ensuring the safety of the operator's work, and reducing the risk of damage to objects and property loss.

[0019] 2. The utility model is provided with hooks and buckles. The hook is the main component for connecting heavy objects, and its structural strength and stability are of vital importance. The buckle can realize the rapid locking and unlocking of heavy objects, thereby improving the working efficiency. The rotating connection between the hook and the buckle makes it more convenient to mount and remove the hand chain hoist, simplifies the operation process, and enhances the applicability and flexibility of the hand chain hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the anti-slip mechanism of the utility model;

[0023] Figure 4 It is a rear view structural diagram of the anti-slip mechanism of the utility model.

[0024] In the figure: 1. Hand chain hoist body; 2. Chain; 3. Hook; 4. Buckle; 5. Anti-slip mechanism; 501. First fixed block; 502. Slide groove; 503. Slider; 504. Second fixed block; 505. Anti-slip plate; 506. Damping spring; 507. Baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following describes an embodiment of the present invention based on its overall structure.

[0029] An anti-unhooking structure for a hand chain hoist, such as Figures 1-4 As shown, it includes a hand chain hoist body 1 and an anti-slip mechanism 5, and the anti-slip mechanism 5 includes a first fixed block 501, and the first fixed block 501 is engaged and slidably with a slider 503 through a slide groove 502, and the outer surface of the slider 503 is fixedly connected to a second fixed block 504, and an anti-slip plate 505 is provided on the top of the second fixed block 504, and a damping spring 506 is provided on one side of the second fixed block 504, and a baffle 507 is provided at one end of the damping spring 506. During the lifting process, the slide groove 502 and the slider 503 have such flexibility that the anti-slip mechanism 5 can better adapt to changes in different angles and positions, thereby improving the anti-slip effect. The baffle 507 serves as a supporting component of the damping spring 506 to ensure that it is correctly installed and functions, provides additional structural strength, and enhances the stability of the anti-slip mechanism.

[0030] See Figure 3 、 Figure 4 There are two second fixed blocks 504, and the two second fixed blocks 504 are symmetrically arranged along the central axis of the first fixed block 501. By setting two symmetrical second fixed blocks 504, the overall stability of the anti-slip mechanism can be significantly increased. This layout helps to balance the forces from different directions and prevent the anti-slip mechanism from tilting or twisting when subjected to force, thereby ensuring the safety and reliability of the hand chain hoist during the lifting process. The symmetrical arrangement of the two second fixed blocks 504 can also disperse and withstand greater loads, thereby improving the carrying capacity of the entire anti-slip mechanism.

[0031] See Figure 3 、 Figure 4 There are two groups of damping springs 506, and each group of damping springs 506 is provided with two springs. By providing two groups of damping springs 506, and each group contains two springs, the stability of the hand chain hoist during the lifting process is significantly enhanced. The damping spring 506 can effectively absorb and disperse the vibration and impact force generated by the wire rope or chain during the lifting process. The setting of multiple groups of damping springs 506 makes the anti-slip mechanism more reliable and reduces the risk of unhooking due to excessive shaking of the wire rope or chain.

[0032] See Figure 3 、 Figure 4 The first fixing block 501 and the anti-slip plate 505 are both arc-shaped. The outer surface of the anti-slip plate 505 is provided with a rubber layer. The rubber layer has good elasticity and friction, which helps to increase the contact area and friction between the anti-slip plate 505 and the heavy object, thereby more effectively preventing the heavy object from slipping or shifting during the lifting process. The arc shape of the first fixing block 501 helps to reduce stress concentration and improve the strength and durability of the structure. During the lifting process, the arc shape can better disperse and withstand forces from all directions, thereby reducing the risk of damage.

[0033] See Figure 1 、 Figure 2 A chain 2 is provided at the bottom of the hand chain hoist body 1, and a hook 3 is provided at one end of the chain 2. The hook 3 is adapted to the first fixed block 501. The chain 2 is an important load-bearing and tension-transmitting component in the lifting process. The chain 2 has high strength and wear resistance, can bear the weight of the heavy object and remain stable during the lifting process, ensuring that the heavy object can be safely and accurately lifted to the designated position. The hook 3 enables it to easily connect heavy objects of various types and shapes. At the same time, its structural strength and stability also ensure the safety of the lifting process.

[0034] See Figure 1 、 Figure 2 One side of the hook 3 is connected to a buckle 4 through a rotating shaft. The buckle 4 is ring-shaped. The rotating shaft connection between the hook 3 and the buckle 4 significantly enhances the flexibility and convenience of the hand chain hoist during use and improves work efficiency. The ring-shaped setting of the buckle 4 not only enhances its structural strength, but also enables it to lock heavy objects more firmly, reducing the risk of unhooking due to loosening or breaking of the buckle 4.

[0035] The implementation principle of the present utility model is: first, when the oblique pulling or hanging of heavy objects causes shaking, the wire rope that fixes the heavy object slides onto the anti-slip plate 505, and the inclined surface of the anti-slip plate 505 causes the wire rope to slide to the bottom of the hook. At the same time, the gravity of the heavy object causes the wire rope to press the anti-slip plate 505 to make the slider 503 slide along the first fixed block 501, and the inclined surface position is adjusted synchronously to prevent the wire rope from sliding onto the buckle 4. At the same time, the damping spring 506 effectively offsets the shaking of the wire rope and reduces the shaking amplitude of the wire rope.

[0036] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An anti-unhooking structure for a hand chain hoist, characterized by: The invention comprises a hand chain hoist body (1) and an anti-slip mechanism (5), wherein the anti-slip mechanism (5) comprises a first fixed block (501), the first fixed block (501) is engaged with a sliding block (503) through a sliding groove (502), the outer surface of the sliding block (503) is fixedly connected to a second fixed block (504), an anti-slip plate (505) is provided on the top of the second fixed block (504), a damping spring (506) is provided on one side of the second fixed block (504), and a baffle (507) is provided at one end of the damping spring (506).

2. The anti-unhooking structure of the hand chain hoist according to claim 1, characterized in that: Two second fixing blocks (504) are provided, and the two second fixing blocks (504) are symmetrically arranged along the central axis of the first fixing block (501).

3. The anti-unhooking structure of the hand chain hoist according to claim 1, characterized in that: The damping springs (506) are provided in two groups, and each group of the damping springs (506) is provided with two.

4. The anti-unhooking structure of the hand chain hoist according to claim 1, characterized in that: The first fixing block (501) and the anti-slip plate (505) are both arc-shaped, and the outer surface of the anti-slip plate (505) is provided with a rubber layer.

5. The anti-unhooking structure of the hand chain hoist according to claim 1, characterized in that: A chain (2) is provided at the bottom of the hand chain hoist body (1), and a hook (3) is provided at one end of the chain (2), and the hook (3) is adapted to the first fixed block (501).

6. The anti-unhooking structure of the hand chain hoist according to claim 5, characterized in that: One side of the hook (3) is rotatably connected to a buckle (4) via a rotating shaft, and the buckle (4) is annular in shape.

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