Crane hook anti-falling device
By designing a crane hook anti -offing device that includes elastic adjustment and anti -off -chip components, the problem of manual opening and closing of the hook anti -defense buckle in the existing technologies requires manual manual opening and closing, and realizes the automatic closure and of the subject of the hook. Turn on, facilitate the lifting and unloading of the goods.
Patent Information
- Application Number
- CN202420467542.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-12
AI Technical Summary
The anti-dislocation snaps of existing crane hooks require manual opening and closing, which is inconvenient for hooking and unloading of goods.
A crane hook anti -off device is designed, including the hook subject, elastic adjustment part and anti -off -rod component. The elastic adjustment part is automatically adjusted through vertical rods and elastic activity ring, and anti -off -rod components can be automatically opened and closer through pull -up regulation.
The automatic closure and opening of the hook main body's opening, avoiding manual operation of manual operation, improving the convenience of cargo lifting and unloading, and saving the amount of labor.
Smart Images
Figure CN222410716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, in particular to a crane hook anti-dropping device. Background Art
[0002] Tower cranes, also known as tower cranes, are mainly used for vertical and horizontal transportation of materials and installation of building components in house construction. The hook is an indispensable component of the crane in the process of lifting heavy objects. During the lifting operation, the steel cable is first hung on the hook, and then the crane is started to lift the goods on the steel cable. In order to prevent the goods from falling off during lifting, most of them currently use elastic buckles at the opening of the hook. However, in actual use, the buckle needs to be manually pressed to open before lifting the goods, and then the cargo steel cable is lifted. After the lifting is completed, the buckle needs to be manually opened before removing the cargo steel cable. Since most of the goods lifted by the crane are heavy goods, the staff needs to use both hands to operate when hooking and removing the steel cable. If the buckle needs to be pressed manually, it will bring inconvenience to the construction workers. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a crane hook anti-dislocation device, which solves the problem that the current crane hook anti-dislocation buckle needs to be manually opened and closed, which is inconvenient for hooking and unloading goods.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane hook anti-drop device, comprising a hook body, the top of the hook body is connected to a connecting cavity, the connecting cavity is provided with an elastic adjustment part that is adjusted as the hook body transports goods, and the upper opening of the hook body is provided with an anti-drop rod assembly for preventing the goods from being dislocated when transporting the goods;
[0007] The elastic adjustment part comprises a vertical rod fixedly connected to the top wall of the hook body, the top end of the vertical rod is vertically upwardly movable and inserted into the connecting cavity, and the outer side of the vertical rod is provided with an elastic movable ring which is compressed as the hook body pulls the vertical rod up and down when lifting goods;
[0008] The anti-drop rod assembly comprises a movable anti-drop rod rotatably connected to the upper opening of the hook body, and a pulling and rolling adjustment part is provided at the connection between the movable anti-drop rod and the upper opening of the hook body to adjust the opening and closing of the movable anti-drop rod as the vertical rod moves up and down.
[0009] Preferably, the vertical rod is movably connected to the bottom wall of the connecting cavity, and a limit plate is fixedly connected to the top end of the vertical rod to prevent the vertical rod from dislocating.
[0010] Preferably, the elastic movable ring comprises an abutment ring movably sleeved on the outside of the vertical rod, the bottom wall of the abutment ring is fixedly connected to the bottom wall of the connecting cavity, the top of the abutment ring is open, and a vertically arranged compression spring is provided in the abutment ring.
[0011] Preferably, the compression spring is sleeved on the outside of the vertical rod, the top end of the compression spring is fixedly connected to the bottom end of the limit plate, the bottom end of the compression spring is fixedly connected to the inner bottom wall of the abutment ring, and the compression spring realizes compression and reset activities as the vertical rod rises and falls.
[0012] Preferably, the pull-and-roll adjustment portion includes a plug-in plate located at the end of the upper opening of the hook body, a U-shaped connecting plate rotatably connected to the plug-in plate is provided on the outer side of the plug-in plate, the bottom wall of the U-shaped connecting plate is fixedly connected to the top of the movable anti-slip rod, a horizontal plug-in strip is provided between the U-shaped connecting plate and the middle part of the plug-in plate, and the plug-in strip located on the outer side of the plug-in plate is provided with a spiral spring for adjusting the angle of the U-shaped connecting plate and the movable anti-slip rod.
[0013] Preferably, the inner end of the spiral spring is fixed to the outside of the plug-in strip, and the outer end of the spiral spring extends upward and is fixed to the bottom wall of the connecting cavity. The spiral spring realizes the rotation adjustment of the movable anti-slip rod along the plug-in strip as the center of the circle as the vertical rod and the hook body are raised and lowered.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a crane hook anti-drop device, which has the following beneficial effects:
[0016] By providing an elastic adjustment part which moves downward with the weight of the goods, when the hook body is lifting the goods, the vertical rod is pulled downward due to the gravity of the goods, so that the distance between the hook body and the bottom wall of the connecting cavity is lengthened, and the spiral spring connected to the bottom wall of the connecting cavity is pulled outward, so that the movable anti-slip rod is rotated, thereby achieving the closure of the opening of the hook body. When the goods are lifted to the designated position and land on the ground, the distance between the hook body and the bottom wall of the connecting cavity is shortened due to the elastic force of the compression spring, and then due to the elastic force of the spiral spring, the movable anti-slip rod is rotated in the opposite direction, so that the opening of the hook body is automatically opened, which is convenient for the staff to unload the goods without the need for the staff to press manually, thus saving labor. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of the connection cavity of the utility model after cutting;
[0019] Figure 2 This is a schematic diagram of the structure of the elastic adjustment part of the utility model;
[0020] Figure 3 The utility model is a schematic diagram of the internal structure of the U-shaped connecting plate in the anti-drop rod assembly after being cut away.
[0021] Description of reference numerals:
[0022] 1. Hook body; 2. Connecting cavity; 3. Elastic adjustment part; 31. Vertical rod; 32. Elastic movable ring; 321. Abutment ring; 322. Compression spring; 33. Limiting plate; 4. Anti-slip rod assembly; 41. Movable anti-slip rod; 42. Roll-up adjustment part; 421. Plug-in plate; 422. U-shaped connecting plate; 423. Plug-in strip; 424. Volute spring. DETAILED DESCRIPTION
[0023] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0024] Figure 1-3 As one embodiment of the utility model, a crane hook anti-drop device comprises a hook body 1, a connecting cavity 2 is connected to the top of the hook body 1, an elastic adjustment part 3 which is adjusted as the hook body 1 transports goods is arranged in the connecting cavity 2, and an anti-drop rod assembly 4 which is used to prevent the goods from being dislocated when the goods are transported is arranged at the upper opening of the hook body 1. In actual work, the goods to be lifted are hung on the hook body 1, and then the crane is started to lift the goods for lifting and moving. During lifting, the elastic adjustment part 3 is pulled by the weight of the goods, thereby driving the anti-drop rod assembly 4 to close the opening of the hook body 1 to prevent the goods from falling off during transportation;
[0025] The elastic adjustment part 3 includes a vertical rod 31 fixedly connected to the top wall of the hook body 1, and the top of the vertical rod 31 is vertically upward and movably inserted into the connecting cavity 2. The outer side of the vertical rod 31 is provided with an elastic movable ring 32 which is compressed as the hook body 1 pulls the vertical rod 31 up and down when lifting goods. In actual work, when the hook body 1 lifts goods, due to the gravity of the goods, the vertical rod 31 fixedly connected to the hook body 1 is pulled downward, thereby pressing the elastic movable ring 32, and when the goods are unloaded, the vertical rod 31 returns to its position upward along with the elastic movable ring 32.
[0026] When the lifting lever 31 is lifted up, the cam 33 is tightened to the bottom of the support rail 32 so that the lifting lever 31 can be tightened to the lifting lever 31. When the lifting lever 31 is lifted up, the cam 33 is tightened to the bottom of the support rail 32 so that the lifting lever 31 can be tightened to the lifting lever 31.
[0027] The compression spring 322 is sleeved on the outside of the vertical rod 31, the top of the compression spring 322 is fixedly connected to the bottom end of the limit plate 33, and the bottom end of the compression spring 322 is fixedly connected to the inner bottom wall of the abutment ring 321. The compression spring 322 is compressed and reset as the vertical rod 31 is raised and lowered. In actual work, when the limit plate 33 is pulled downward by the vertical rod 31 to press the compression spring 322, the compression spring 322 is compressed by the limit plate 33 and the abutment ring 321, and when the limit plate 33 is pulled to abut against the top of the abutment ring 321, the compression spring 322 is placed in the abutment ring 321 to prevent the compression spring 322 from being damaged due to excessive force.
[0028] The anti-slip rod assembly 4 includes a movable anti-slip rod 41 rotatably connected to the upper opening of the hook body 1, and a pulling and adjusting portion 42 is provided at the connection between the movable anti-slip rod 41 and the upper opening of the hook body 1 for adjusting the opening and closing of the movable anti-slip rod 41 as the vertical rod 31 moves up and down. In actual work, when the hook body 1 and the vertical rod 31 are pulled downward by the goods, the movable anti-slip rod 41 is pulled by the pulling and adjusting portion 42 to rotate toward the lower opening of the hook body 1, so as to close the opening of the hook body 1. When the goods are lifted to the designated position and land on the ground, the downward pulling force on the hook body 1 and the vertical rod 31 is released, and the distance between the hook body 1 and the bottom wall of the connecting cavity 2 is shortened due to the elastic force of the compression spring 322. At this time, the movable anti-slip rod 41 is pulled by the pulling and adjusting portion 42 to rotate in the opposite direction of the lower opening of the hook body 1, so as to open the opening of the hook body 1 for easy unloading.
[0029] The pull-roll adjustment portion 42 includes a plug-in plate 421 located at the end of the upper opening of the hook body 1, a U-shaped connecting plate 422 rotatably connected to the plug-in plate 421 is provided on the outer side of the plug-in plate 421, the bottom wall of the U-shaped connecting plate 422 is fixedly connected to the top of the movable anti-slip rod 41, the U-shaped connecting plate 422 is rotatably connected to the plug-in plate 421, a horizontal plug-in strip 423 is provided in the middle of the plug-in plate 421, the plug-in strip 423 is fixedly connected to the U-shaped connecting plate 422, and the plug-in strip 423 is fixedly connected to the U-shaped connecting plate 422. The plug strip 423 located on the outside of the plug plate 421 is provided with a volute spring 424 for adjusting the angle between the U-shaped connecting plate 422 and the movable anti-dropping rod 41. The inner end of the volute spring 424 is fixed to the outside of the plug strip 423, and the outer end of the volute spring 424 extends upward and is fixed to the bottom wall of the connecting cavity 2. The volute spring 424 realizes the rotation adjustment of the movable anti-dropping rod 41 along the plug strip 423 as the vertical rod 31 and the hook body 1 are raised and lowered. In actual work, when the hook body When the cargo is lifted to the designated position and landed on the ground, the distance between the hook body 1 and the bottom wall of the connecting cavity 2 is shortened due to the elastic force of the compression spring 322. Due to the elastic force of the scroll spring 424, the plug-in strip 423 drives the U-shaped connecting plate 422 to rotate in the opposite direction to the opening below the hook body 1, realizing the rotation of the movable anti-slip rod 41, thereby automatically opening the opening of the hook body 1, which is convenient for the staff to unload.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A crane hook anti-drop device, comprising a hook body (1), characterized in that: The top of the hook body (1) is connected to a connecting cavity (2), the connecting cavity (2) is provided with an elastic adjustment portion (3) that is adjusted as the hook body (1) transports goods, and the upper opening of the hook body (1) is provided with an anti-drop rod assembly (4) for preventing the goods from being dislocated when transporting the goods; The elastic adjustment part (3) comprises a vertical rod (31) fixedly connected to the top wall of the hook body (1), the top end of the vertical rod (31) is vertically upwardly movable and inserted into the connecting cavity (2), and the outer side of the vertical rod (31) is provided with an elastic movable ring (32) which is compressed as the hook body (1) pulls the vertical rod (31) up and down when lifting goods; The anti-slip rod assembly (4) comprises a movable anti-slip rod (41) rotatably connected to the upper opening of the hook body (1); a pull-up adjustment portion (42) is provided at the connection between the movable anti-slip rod (41) and the upper opening of the hook body (1) for adjusting the opening and closing of the movable anti-slip rod (41) as the vertical rod (31) moves up and down.
2. A crane hook anti-drop device according to claim 1, characterized in that: The vertical rod (31) is movably connected to the bottom wall of the connecting cavity (2), and a limiting plate (33) is fixedly connected to the top end of the vertical rod (31) to prevent the vertical rod (31) from being dislocated.
3. A crane hook anti-drop device according to claim 2, characterized in that: The elastic movable ring (32) comprises an abutment ring (321) movably sleeved on the outside of the vertical rod (31), the bottom wall of the abutment ring (321) is fixedly connected to the bottom wall of the connecting cavity (2), the top of the abutment ring (321) is open, and a vertically arranged compression spring (322) is arranged in the abutment ring (321).
4. A crane hook anti-drop device according to claim 3, characterized in that: The compression spring (322) is sleeved on the outside of the vertical rod (31), the top end of the compression spring (322) is fixedly connected to the bottom end of the limit plate (33), and the bottom end of the compression spring (322) is fixedly connected to the inner bottom wall of the abutment ring (321), and the compression spring (322) realizes compression and reset activities as the vertical rod (31) rises and falls.
5. The anti-drop device for crane hook according to claim 1, characterized in that: The pull-roll adjustment part (42) comprises a plug-in plate (421) located at the end of the upper opening of the hook body (1); a U-shaped connecting plate (422) rotatably connected to the plug-in plate (421) is provided on the outer side of the plug-in plate (421); the bottom wall of the U-shaped connecting plate (422) is fixedly connected to the top of the movable anti-slip rod (41); a horizontal plug-in strip (423) is provided in the middle of the U-shaped connecting plate (422) and the plug-in plate (421); and a spiral spring (424) for adjusting the angle between the U-shaped connecting plate (422) and the movable anti-slip rod (41) is provided on the plug-in strip (423) located on the outer side of the plug-in plate (421).
6. A crane hook anti-drop device according to claim 5, characterized in that: The inner end of the spiral spring (424) is fixed to the outer side of the plug-in strip (423), and the outer end of the spiral spring (424) is extended upward and fixed to the bottom wall of the connecting cavity (2). The spiral spring (424) realizes the rotation adjustment of the movable anti-slip rod (41) along the plug-in strip (423) as the vertical rod (31) and the hook body (1) are raised and lowered.