Anti-falling type lifting hook for subway construction

Abstract

The utility model discloses an anti-drop lifting hook for metro construction, and relates to the technical field of anti-drop lifting hooks for metro construction, the anti-drop lifting hook for metro construction comprises a lifting hook, the top of the lifting hook is provided with a connecting mechanism, the connecting mechanism comprises a limiting frame and a fixing block, and the limiting frame is fixedly connected to one end of the lifting hook. By twisting the rotating handle, the rotating handle drives the connecting column to rotate in the sleeve in a threaded mode, when the connecting column rotates in the threaded mode, the compression spring is pushed to compress forwards, the compression spring pushes the sliding block to slide on the sliding groove, the sliding block drives the clamping block to move forwards, the clamping block is clamped into the fixing hole, and therefore the sleeve block is fixed to the lifting hook. And when the fixing mechanism needs to move away the lifting hook, a rotating handle is twisted in the reverse direction, so that a clamping block is separated from a fixing hole, and then a sleeve block is turned over and moved out of the lifting hook, so that a baffle can be driven to flexibly shield the lifting hook, and the anti-falling performance of the lifting hook is better.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-slip hooks for subway construction, in particular to an anti-slip hook for subway construction. Background Art

[0002] The hook is the most common type of lifting device in lifting machinery. The hook is often suspended on the wire rope of the lifting mechanism with the help of components such as pulleys. The hook anti-unhooking device is a device applied to the hook. Its main purpose is to prevent unhooking. Anti-unhooking hooks are also required for use in subway construction and transportation.

[0003] Publication No. CN213569153U discloses a crane hook anti-unhooking device, which, through a combination of various structures, can prevent the crane hook from unhooking, thereby improving the safety of equipment use. In addition, the device has a simple structure, low cost, and is easy to promote.

[0004] In order to solve the problem of anti-dropping of the hook in the above-mentioned technical solution, the existing technology is to use a single connection point to connect the hook in the hook anti-dropping device, but the hook is still easy to drop out, which leads to the problem of poor anti-dropping performance of the hook. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-drop hook for subway construction to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An anti-drop hook for subway construction, comprising a hook, a connecting mechanism being installed on the top of the hook;

[0008] The connection mechanism includes a limit frame and a fixed block, the limit frame is fixedly connected to one end of the hook, the fixed block is sleeved on the surface of the hook, one side of the fixed block is fixedly connected to a first hinge block, the surface of the first hinge block is hinged to a baffle, one end of the baffle is hinged to a second hinge block, and one end of the second hinge block is fixedly connected to a fixing mechanism;

[0009] The fixing mechanism includes a sleeve block and a fixing hole. The sleeve block is sleeved on one end of the hook. A notch is provided on the surface of the sleeve block. The fixing hole is provided on one side of the hook. A placement groove is provided on one side of the sleeve block. A fixing piece is installed inside the placement groove.

[0010] A further improvement of the technical solution of the present utility model is that a buffer spring is fixedly connected to the lower side of the baffle, and one end of the buffer spring is fixedly connected to a buffer pad, and the buffer pad and the buffer spring provide buffering force to the baffle, so that the baffle can withstand impact.

[0011] A further improvement of the technical solution of the present utility model is that: a spring is fixedly connected to the surface of the fixed block, a buffer frame is fixedly connected to the top of the spring, movable holes are opened on the surfaces of the buffer frame and the fixed block, the surface of the movable hole is slidably connected to a limiting column, and the buffer frame is connected to the fixed block through the limiting column.

[0012] A further improvement of the technical solution of the present invention is that: the top end of the limiting column is threadedly connected with a top cap, which blocks the limiting column and prevents the buffer frame and the fixing block from detaching from the hook.

[0013] A further improvement of the technical solution of the present utility model is that the fixing part includes a sleeve, the sleeve is clamped in the interior of the placement groove, the interior of the sleeve is fixedly connected to a slide groove, the surface of the slide groove is slidably connected to a slider, and a compression spring pushes the slider to slide on the slide groove.

[0014] A further improvement of the technical solution of the present invention is that: a clamping block is fixedly connected to one side of the slider, and a compression spring is fixedly connected to the other side of the slider, and when the connecting column rotates on the thread, the compression spring is pushed forward for compression.

[0015] A further improvement of the technical solution of the present utility model is that one end of the compression spring is fixedly connected to a connecting column, one end of the connecting column is fixedly connected to a rotating handle, the connecting column is threadedly connected to the inside of the sleeve, and the rotating handle drives the connecting column to rotate threadedly inside the sleeve.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] 1. The utility model provides an anti-slip hook for subway construction. By twisting the rotating handle, the rotating handle drives the connecting column to rotate in a thread inside the casing. When the connecting column rotates in a thread, the compression spring is compressed forward. The compression spring pushes the slider to slide on the slide groove. The slider drives the clamping block to move forward. The clamping block is engaged with the inside of the fixing hole, thereby fixing the sleeve block on the hook, thereby fixing the fixing mechanism and the connecting mechanism on the hook. When the fixing mechanism needs to remove the hook, the rotating handle is twisted in the opposite direction to disengage the clamping block from the fixing hole, and then the sleeve block is flipped and moved out of the hook, thereby driving the baffle to flexibly cover the hook and making the anti-slip performance of the hook better.

[0018] 2. The utility model provides an anti-drop hook for subway construction, which is hinged to the second hinge block through a baffle, which closes the hook and provides a buffering force to the baffle through a buffer pad and a buffer spring, so that the baffle can withstand the impact and prevent the baffle from being damaged. When the hook is hooking an object, the baffle will be hit during the movement. When the baffle moves, the baffle moves on the first hinge block and the second hinge block, and the first hinge block drives the fixed block to move on the hook. The fixed block moves by the spring. The spring squeezes and rebounds on the buffer frame to prevent the fixed block from moving upward due to impact on the hook. The limit frame is used to limit the downward movement of the fixed block, so that the entire fixed block can move stably between the limit frame and the buffer frame. The buffer frame and the fixed block are connected by the limit column, and the limit column is blocked by the top cap to prevent the buffer frame and the fixed block from detaching from the hook. Therefore, when the hook is hoisting objects, the baffle can operate stably, so that the baffle will not detach from the hook when the hook is hoisting objects, thereby ensuring the normal use of the hook. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a structural diagram of the connection mechanism of the utility model;

[0021] Figure 3 This is a structural diagram of the fixing mechanism of the utility model;

[0022] Figure 4 This is a structural diagram of the fixing member of the utility model.

[0023] In the figure: 1. hook; 2. connecting mechanism; 20. limit frame; 21. fixing block; 22. spring; 23. buffer frame; 24. first hinge block; 25. baffle; 26. limit column; 27. top cap; 28. second hinge block; 29. buffer spring; 291. buffer pad; 292. movable hole; 3. fixing mechanism; 30. sleeve block; 31. notch; 32. placement slot; 33. fixing part; 330. sleeve; 331. slide groove; 332. block; 333. slider; 334. compression spring; 335. connecting column; 336. rotating handle; 34. fixing hole. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the embodiments:

[0025] Example 1

[0026] like Figure 1-4As shown, the utility model provides an anti-dropping hook for subway construction, including a hook 1, a connecting mechanism 2 is installed on the top of the hook 1, the connecting mechanism 2 includes a limit frame 20 and a fixed block 21, the limit frame 20 is fixedly connected to one end of the hook 1, the fixed block 21 is sleeved on the surface of the hook 1, one side of the fixed block 21 is fixedly connected to a first hinge block 24, the surface of the first hinge block 24 is hinged with a baffle 25, one end of the baffle 25 is hinged with a second hinge block 28, one end of the second hinge block 28 is fixedly connected to the fixing mechanism 3, the surface of the fixed block 21 is fixedly connected to a spring 22, the top of the spring 22 is fixedly connected to a buffer frame 23, the surfaces of the buffer frame 23 and the fixed block 21 are both provided with movable holes 292, the surface of the movable hole 292 is slidably connected to a limiting column 26, the top of the limiting column 26 is threadedly connected to a top cap 27, the lower side of the baffle 25 is fixedly connected to a buffer spring 29, and one end of the buffer spring 29 is fixedly connected to a buffer pad 291;

[0027] Specifically, when the hook 1 is in operation, the baffle 25 is hinged with the second hinge block 28, and the baffle 25 closes the hook 1. The buffer pad 291 and the buffer spring 29 provide a buffer force to the baffle 25, so that the baffle 25 can withstand the impact and prevent the baffle 25 from being damaged. When the hook 1 is hooking an object, the baffle 25 will be impacted during the movement. When the baffle 25 moves, the baffle 25 moves on the first hinge block 24 and the second hinge block 28. The first hinge block 2 4 drives the fixed block 21 to move on the hook 1. The fixed block 21 is squeezed and rebounded on the buffer frame 23 by the spring 22, which is used to prevent the fixed block 21 from moving upward due to impact on the hook 1. The limit frame 20 is used to limit the downward movement of the fixed block 21, so that the entire fixed block 21 can move stably between the limit frame 20 and the buffer frame 23. The buffer frame 23 and the fixed block 21 are connected by the limit column 26, and the limit column 26 is blocked by the top cap 27 to prevent the buffer frame 23 and the fixed block 21 from detaching from the hook 1.

[0028] Example 2

[0029] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the fixing mechanism 3 includes a sleeve block 30 and a fixing hole 34, the sleeve block 30 is sleeved on one end of the hook 1, a notch 31 is provided on the surface of the sleeve block 30, and the fixing hole 34 is provided on one side of the hook 1, a placement groove 32 is provided on one side of the sleeve block 30, and a fixing member 33 is installed inside the placement groove 32, and the fixing member 33 includes a sleeve 330, the sleeve 330 is clamped in the placement groove 32, the sleeve 330 is fixedly connected with a slide groove 331, and a slider 333 is slidably connected to the surface of the slide groove 331, one side of the slider 333 is fixedly connected to the clamping block 332, and the other side of the slider 333 is fixedly connected to a compression spring 334, one end of the compression spring 334 is fixedly connected to a connecting column 335, one end of the connecting column 335 is fixedly connected to a rotating handle 336, and the connecting column 335 is threadedly connected to the inside of the sleeve 330;

[0030] Specifically, by twisting the rotating handle 336, the rotating handle 336 drives the connecting column 335 to rotate in the sleeve 330. When the connecting column 335 rotates, the compression spring 334 is compressed forward. The compression spring 334 pushes the slider 333 to slide on the slide groove 331. The slider 333 drives the clamping block 332 to move forward. The clamping block 332 is engaged with the interior of the fixing hole 34, thereby fixing the sleeve 30 to the hook 1, thereby fixing the fixing mechanism 3 and the connecting mechanism 2 to the hook 1. When the fixing mechanism 3 needs to be removed from the hook 1, the rotating handle 336 is twisted in the opposite direction to disengage the clamping block 332 from the fixing hole 34, and then the sleeve 30 is flipped and moved out of the hook 1.

[0031] The following is a detailed description of the working principle of the anti-slip hook for subway construction.

[0032] like Figure 1-4As shown, when the hook 1 is in operation, the baffle 25 is hinged with the second hinge block 28, and the baffle 25 closes the hook 1. The buffer pad 291 and the buffer spring 29 provide a buffering force to the baffle 25, so that the baffle 25 can withstand the impact and prevent the baffle 25 from being damaged. When the hook 1 hooks the object, the baffle 25 will be hit during the movement. When the baffle 25 moves, the baffle 25 moves on the first hinge block 24 and the second hinge block 28, and the first hinge block 24 drives the fixed block 21 to move on the hook 1. The fixed block 21 is squeezed and rebounded on the buffer frame 23 by the spring 22, which is used to prevent the fixed block 21 from moving upward due to impact on the hook 1. The limit frame 20 is used to limit the downward movement of the fixed block 21, so that the entire fixed block 21 can move stably between the limit frame 20 and the buffer frame 23. The buffer frame 23 is connected to the fixed block 21 through the limit column 26, and the limit column 26 is blocked by the top cap 27 to prevent the buffer frame 23 and the fixed block 21 from detaching from the hook 1. By twisting the rotating handle 336, the rotating handle 336 drives the connecting column 335 in the sleeve 330. When the screw thread is turned inside, the connecting column 335 pushes the compression spring 334 to be compressed forward, and the compression spring 334 pushes the slider 333 to slide on the slide groove 331, and the slider 333 drives the clamping block 332 to move forward, and the clamping block 332 is engaged with the inside of the fixing hole 34, thereby fixing the sleeve 30 to the hook 1, thereby fixing the fixing mechanism 3 and the connecting mechanism 2 to the hook 1. When the fixing mechanism 3 needs to remove the hook 1, the rotating handle 336 is twisted in the opposite direction to make the clamping block 332 disengage from the fixing hole 34, and then the sleeve 30 is flipped and moved out of the hook 1.

[0033] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An anti-drop hook for subway construction, comprising a hook (1), characterized in that: A connection mechanism (2) is installed on the top of the hook (1); The connection mechanism (2) comprises a limit frame (20) and a fixed block (21), wherein the limit frame (20) is fixedly connected to one end of the hook (1), and the fixed block (21) is sleeved on the surface of the hook (1); one side of the fixed block (21) is fixedly connected to a first hinge block (24); a baffle (25) is hinged to the surface of the first hinge block (24); one end of the baffle (25) is hinged to a second hinge block (28); and one end of the second hinge block (28) is fixedly connected to the fixing mechanism (3); The fixing mechanism (3) comprises a sleeve block (30) and a fixing hole (34); the sleeve block (30) is sleeved on one end of the hook (1); a notch (31) is provided on the surface of the sleeve block (30); the fixing hole (34) is provided on one side of the hook (1); a placement groove (32) is provided on one side of the sleeve block (30); a fixing member (33) is installed inside the placement groove (32).

2. The anti-drop hook for subway construction according to claim 1, characterized in that: A buffer spring (29) is fixedly connected to the lower side of the baffle (25), and one end of the buffer spring (29) is fixedly connected to a buffer pad (291).

3. The anti-drop hook for subway construction according to claim 1, characterized in that: The surface of the fixed block (21) is fixedly connected to a spring (22), the top of the spring (22) is fixedly connected to a buffer frame (23), and the surfaces of the buffer frame (23) and the fixed block (21) are both provided with movable holes (292), and the surface of the movable hole (292) is slidably connected to a limiting column (26).

4. The anti-drop hook for subway construction according to claim 3, characterized in that: The top end of the limiting column (26) is threadedly connected with a top cap (27).

5. The anti-drop hook for subway construction according to claim 1, characterized in that: The fixing member (33) includes a sleeve (330), the sleeve (330) is clamped inside the placement groove (32), the interior of the sleeve (330) is fixedly connected to a slide groove (331), and the surface of the slide groove (331) is slidably connected to a slider (333).

6. The anti-drop hook for subway construction according to claim 5, characterized in that: One side of the slider (333) is fixedly connected to a clamping block (332), and the other side of the slider (333) is fixedly connected to a compression spring (334).

7. The anti-drop hook for subway construction according to claim 6, characterized in that: One end of the compression spring (334) is fixedly connected to a connecting column (335), one end of the connecting column (335) is fixedly connected to a rotating handle (336), and the connecting column (335) is threadedly connected to the interior of the sleeve (330).

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