Rotatable chain block

Abstract

The utility model relates to the technical field of hoisting equipment, and discloses a rotatable chain block which comprises a block shell, an upper connecting seat is fixedly connected to the top of the block shell, two supporting rods are rotatably connected to the surface of a connecting block through a rotating shaft, and limiting pieces are arranged at the ends, away from the connecting block, of the two supporting rods; the bottom of the lower fixing rod is fixedly connected with a fixing block through threads, the bottom of the fixing block is provided with a push-pull piece, and the two sides of the fixing block are each provided with a fixing piece. Through cooperative use of the push-pull piece, the limiting piece and other related assemblies, the overall structure is simple, operation and use are easy and convenient, iron chains can be limited and separated when the chain block is used for hanging a heavy object, the situations that the iron chains are wound and cannot be pulled in the use process can be effectively reduced, and the service life of the chain block is prolonged. The actual working efficiency can be effectively improved correspondingly, and meanwhile the corresponding potential safety hazards can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a rotatable hand chain hoist. Background Art

[0002] The rotatable chain hoist is a manual lifting tool with a rotating function. Usually, the chain hoist is used to lift and carry heavy objects, and the rotatable design makes the operation more convenient and flexible.

[0003] In the utility model with the Chinese patent authorization announcement number "CN213011732U", "a 360-degree rotating hand chain hoist is disclosed, including a body, a ball and a bracelet cover with a groove I, a groove II corresponding to the groove I is formed on the body, the groove I and the groove II form a cavity matching the ball, and the ball is arranged in the cavity." The ball is placed in the cavity so that the bracelet cover is rotatably arranged on the body, so that the hand chain can be turned and pulled 360 degrees; the ball is used to reduce the static friction coefficient between the body and the ball, thereby extending the service life of the hoist;

[0004] With respect to the above-mentioned related technologies, the inventor believes that, in the above-mentioned utility model, the chain can be turned and pulled by utilizing the structural design of the bracelet cover and the ball bearing, but in actual use, the iron chain used to suspend the heavy object may shake due to the influence of the heavy object and the frequency of pulling, so that the iron chain may be entangled, etc., which makes it impossible to be pulled, which not only affects its actual working efficiency, but also when the iron chain is entangled, because there is a heavy object suspended at the bottom, the rotation and shaking of the heavy object may be aggravated, and there are corresponding safety hazards;

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that the iron chain of the existing rotatable hand hoist may be entangled during use, affecting work efficiency and posing corresponding safety hazards, the present application provides a rotatable hand hoist.

[0007] The present application provides a rotatable hand chain hoist adopts the following technical solution:

[0008] A rotatable hand-pulled hoist comprises a hoist shell, the top of the hoist shell is fixedly connected to an upper connecting seat, the bottom of the hoist shell is fixedly connected to a lower fixing rod by bolts, the surface of the lower fixing rod is fixedly connected to a connecting block by bolts, the surface of the connecting block is rotatably connected to two groups of support rods by a rotating shaft, the ends of the two groups of support rods away from the connecting blocks are provided with limit members, the bottom of the lower fixing rod is fixedly connected to a fixing block by threads, the bottom of the fixing block is provided on a push-pull member, and the push-pull member is provided on one side of the limiting member, fixing members are provided on both sides of the fixing block, and the fixing members are provided on one side of the limiting member.

[0009] Preferably, the limiting member includes a limiting frame and a limiting wheel, the ends of the two groups of support rods away from the connecting block are rotatably connected to the limiting frame via a rotating shaft, and the inner cavity side walls of the two groups of limiting frames are rotatably connected to the limiting wheel via a rotating shaft.

[0010] Preferably, the push-pull member comprises a threaded rod, a threaded sleeve, a push-pull rod and a hand wheel; the bottom of the fixed block is rotatably connected to the threaded rod via a rotating shaft; the surface of the threaded rod is threadedly connected to the threaded sleeve.

[0011] Preferably, the surface of the threaded sleeve is rotatably connected to two sets of push-pull rods via a rotating shaft, one end of the two sets of push-pull rods away from the threaded sleeve is rotatably connected to one side of the limit frame via a rotating shaft, and the bottom of the threaded rod is fixedly connected to a handwheel via bolts.

[0012] Preferably, the fixing member includes a telescopic rod and a spring, the two sides of the fixing block are fixedly connected to the telescopic rod by bolts, the surfaces of the two groups of telescopic rods are fixedly connected to the springs, and the ends of the two groups of springs away from the fixing block are fixedly connected to one side of the limit frame.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] The yoke is used to suspend the heavy objects by the lever, and the lever is used to pull the heavy objects out of the way so that the yoke can be pulled back and forth to move relative to the lever, thereby reducing the risk of tangling and pulling the heavy objects when the lever is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0016] Figure 2 It is a schematic diagram of the partial structure of the telescopic rod, the limiting wheel and related components of the embodiment of the application;

[0017] Figure 3 It is a schematic diagram of the partial structure of the push-pull rod, hand wheel and related components of the embodiment of the application.

[0018] Explanation of the accompanying drawings: 1. gourd shell; 2. upper connecting seat; 3. lower fixing rod; 4. connecting block; 5. support rod; 6. limiting frame; 7. fixing block; 8. threaded rod; 9. threaded sleeve; 10. limiting wheel; 11. telescopic rod; 12. spring; 13. push-pull rod; 14. handwheel. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The present application embodiment discloses a rotatable hand chain hoist. Figure 1-3 , a rotatable hand chain hoist comprises a hoist shell 1, the top of the hoist shell 1 is fixedly connected with an upper connecting seat 2, the bottom of the hoist shell 1 is fixedly connected with a lower fixing rod 3 by bolts, the surface of the lower fixing rod 3 is fixedly connected with a connecting block 4 by bolts, the surface of the connecting block 4 is rotatably connected with two groups of support rods 5 by a rotating shaft, and the ends of the two groups of support rods 5 away from the connecting block 4 are provided with a limiting piece, the bottom of the lower fixing rod 3 is fixedly connected with a fixing block 7 by threads, the bottom of the fixing block 7 is arranged on a push-pull piece, and the push-pull piece is arranged on one side of the limiting piece, fixing pieces are arranged on both sides of the fixing block 7, and the fixing pieces are arranged on one side of the limiting piece, the limiting piece comprises a limiting frame 6 and a limiting wheel 10, the ends of the two groups of support rods 5 away from the connecting block 4 are rotatably connected to the limiting frame 6 by a rotating shaft, and the inner cavity side walls of the two groups of limiting frames 6 are rotatably connected to the limiting wheel 10 by a rotating shaft;

[0021] By adopting the above technical scheme, the upper connecting seat 2 fixedly connected to the top of the gourd shell 1 is convenient for connecting and fixing with its corresponding suspension frame and related fixed equipment parts. When installing it, the iron chain that needs to be suspended can be passed through the limiting wheels 10 in the two groups of limiting frames 6, and the iron chain is passed between the two groups of limiting wheels 10. The limiting wheels 10 are made of stainless steel, which not only has good strength and durability, but also has a relatively smooth surface. At the same time, lubricating oil can be sprayed on its surface to reduce friction with the iron chain, which is convenient for pulling the iron chain. The push-pull piece provided at the bottom of the fixed block 7 is used in conjunction with the support rod 5 on the surface of the connecting block 4. The two groups of limiting frames 6 and the limiting wheels 10 inside can be pushed and pulled, so that the iron chain passed between the limiting wheels 10 can be separated to prevent entanglement during use. The provided fixing piece can ensure its stability when suspending and pulling heavy objects.

[0022] Reference Figure 1 , Figure 2 and Figure 3 The push-pull member includes a threaded rod 8, a threaded sleeve 9, a push-pull rod 13 and a hand wheel 14. The bottom of the fixed block 7 is rotatably connected to the threaded rod 8 through a rotating shaft. The surface of the threaded rod 8 is threadedly connected to the threaded sleeve 9. The surface of the threaded sleeve 9 is rotatably connected to two groups of push-pull rods 13 through a rotating shaft. The ends of the two groups of push-pull rods 13 away from the threaded sleeve 9 are rotatably connected to one side of the limit frame 6 through a rotating shaft. The bottom of the threaded rod 8 is fixedly connected to the hand wheel 14 by bolts. The fixing member includes a telescopic rod 11 and a spring 12. The two sides of the fixed block 7 are fixedly connected to the telescopic rod 11 by bolts. The surfaces of the two groups of telescopic rods 11 are fixedly connected to the springs 12. The ends of the two groups of springs 12 away from the fixed block 7 are fixedly connected to one side of the limit frame 6.

[0023] By adopting the above technical scheme, when the iron chain is installed, the hand wheel 14 can be turned to drive the threaded rod 8 connected to the bottom of the fixed block 7 to rotate, and the threaded sleeve 9 can be driven to move. Since the limit frame 6 and the telescopic rod 11 are fixedly connected, they can play a limiting role. At this time, the two groups of push-pull rods 13 can be driven to rotate by the movement of the threaded sleeve 9. When used in conjunction with its related components, the two groups of limit frames 6 and related components and the installed iron chain can be pushed outward to separate them, and the separation distance can be adjusted according to the weight to be suspended and the actual use situation. When they are separated and moved, the two groups of telescopic rods 11 and the spring 12 are extended and retracted, and when they are suspended and used, they can play a supporting role, which can correspondingly improve their stability during use.

[0024] The implementation principle of a rotatable hand chain hoist in the embodiment of the present application is as follows: the upper connecting seat 2 fixedly connected to the top of the hoist shell 1 is convenient for connecting and fixing with its corresponding suspension frame and related fixed equipment parts. When installing it, the iron chain that needs to be suspended can be passed through the limiting wheels 10 in the two sets of limiting frames 6, and the iron chain is passed between the two sets of limiting wheels 10. The limiting wheels 10 are made of stainless steel, which not only have good strength and durability, but also have a relatively smooth surface. At the same time, lubricating oil can be sprayed on its surface to reduce the friction between the iron chain and facilitate the pulling of the iron chain. When the iron chain is installed, the hand wheel 14 can be turned to drive the threaded rod 8 connected to the bottom of the fixed block 7 to rotate, and the threaded sleeve 9 can be driven to move. Since the limiting frame 6 and the telescopic rod 11 are fixedly connected, they can play a limiting role. At this time, the threaded sleeve 9 can be driven to move. The movement of the sleeve 9 drives its two groups of push-pull rods 13 to rotate, and is used in conjunction with the support rod 5 on the surface of the connecting block 4. The two groups of limit frames 6 and the limit wheels 10 inside can be pushed and pulled, so that the iron chains passing through the limit wheels 10 can be separated to prevent entanglement during use, and the separation distance can be adjusted according to the heavy objects to be suspended and the actual use conditions. When the two groups of telescopic rods 11 and springs 12 are extended and retracted, and when the hand winch is used, a supporting role can be played, which can correspondingly improve its stability during use. The overall structure is simple and easy to operate. When the hand winch is used to suspend heavy objects, the iron chain can be limited and separated, which can effectively reduce the situation of entanglement and inability to pull during use, and can correspondingly effectively improve its actual work efficiency, while also reducing its corresponding safety hazards.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotatable hand chain hoist, comprising a hoist housing (1), characterized in that: The top of the gourd housing (1) is fixedly connected to an upper connecting seat (2); the bottom of the gourd housing (1) is fixedly connected to a lower fixing rod (3) by bolts; the surface of the lower fixing rod (3) is fixedly connected to a connecting block (4) by bolts; the surface of the connecting block (4) is rotatably connected to two groups of support rods (5) by a rotating shaft; the ends of the two groups of support rods (5) away from the connecting block (4) are provided with limiting members; the bottom of the lower fixing rod (3) is fixedly connected to a fixing block (7) by threads; the bottom of the fixing block (7) is provided on a push-pull member, and the push-pull member is provided on one side of the limiting member; both sides of the fixing block (7) are provided with fixing members, and the fixing members are provided on one side of the limiting member.

2. A rotatable hand chain hoist according to claim 1, characterized in that: The limiting member comprises a limiting frame (6) and a limiting wheel (10); one end of the two groups of support rods (5) away from the connecting block (4) is rotatably connected to the limiting frame (6) via a rotating shaft; and the inner cavity side walls of the two groups of limiting frames (6) are rotatably connected to the limiting wheel (10) via a rotating shaft.

3. A rotatable hand chain hoist according to claim 1, characterized in that: The push-pull member comprises a threaded rod (8), a threaded sleeve (9), a push-pull rod (13) and a hand wheel (14); the bottom of the fixed block (7) is rotatably connected to the threaded rod (8) via a rotating shaft; the surface of the threaded rod (8) is threadedly connected to the threaded sleeve (9).

4. A rotatable hand chain hoist according to claim 3, characterized in that: The surface of the threaded sleeve (9) is rotatably connected to two groups of push-pull rods (13) via a rotating shaft, and one end of the two groups of push-pull rods (13) away from the threaded sleeve (9) is rotatably connected to one side of the limit frame (6) via a rotating shaft, and the bottom of the threaded rod (8) is fixedly connected to a hand wheel (14) via bolts.

5. A rotatable hand chain hoist according to claim 1, characterized in that: The fixing member comprises a telescopic rod (11) and a spring (12); the two sides of the fixing block (7) are fixedly connected to the telescopic rod (11) by bolts; the surfaces of the two groups of telescopic rods (11) are fixedly connected to the spring (12); and the ends of the two groups of springs (12) away from the fixing block (7) are fixedly connected to one side of the limiting frame (6).

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