Quick hoisting anti-unhooking device

Abstract

The utility model discloses a quick hoist anti -unhooking device belongs to hoist anti -unhooking device technical field, including setting positioning flange large -scale equipment, the both sides symmetry of positioning flange top are provided with the lug, the outside of lug is equipped with the lifting rope, the both sides symmetry of large -scale equipment upper end are installed with the anti -unhooking mechanism, and the positioning sleeve is equipped in the outside of positioning flan, and the inside of positioning sleeve is provided with the compression plate, and the lower end surface of compression plate is attached with the upper surface of positioning flan, and the above of positioning sleeve is installed with the clamping frame limit sleeve, and the above of clamping frame limit sleeve is slidably installed with the clamping frame, and one side of clamping frame is provided with two limit plates, and two limit plates are attached with the upper surface and the lower surface of lug respectively and limit the lifting rope that is equipped with on the outside of lug. The anti -unhooking mechanism of the present application is set up to avoid the lifting rope in hoisting process and from the structure on the risk of blocking off the risk of the falling of lifting rope from the lug because of equipment sway, uneven stress of rope body etc.

Description

Technical Field

[0001] This utility model relates to the technical field of hoisting anti-detachment devices, specifically to a rapid hoisting anti-detachment hook device. Background Technology

[0002] In the high-risk and demanding field of hoisting operations, anti-derailment devices play a crucial role. They are not merely mechanical accessories, but critical safety barriers specifically designed to prevent the hook and slings, such as wire ropes, chains, slings, or lifting lugs, from accidentally detaching during operations. They are silent guardians of high-altitude stability, protecting lives and property. Their core mission is to proactively eliminate the fatal risk of falling loads, completely blocking the path of slippage from the hook due to vibration, impact, angle changes, or operational errors through physical intervention. Their core mechanism is a locking safety system: once the slings are correctly engaged with the hook, the locking tongue or baffle automatically resets under gravity, spring force, or lever mechanism, tightly covering the open area of ​​the hook and forming a robust physical barrier.

[0003] This design often utilizes a self-locking wedge structure or a reliable spring mechanism to ensure that the locking tongue not only does not accidentally open under lifting loads, but also tightens under load, effectively preventing accidental opening. The application scenarios of lifting anti-derailment devices cover almost all fields involving the suspension of heavy objects. Whether it's the installation of towering steel structures on construction sites, the precise placement of precast floor slabs, the orderly relocation of large equipment in factory workshops, the efficient loading and unloading of containers at port terminals, or even the harsh environments of installing large generator sets and hoisting giant wind turbine blades in the energy industry, it is an indispensable safety standard. Its value far exceeds simple equipment functions, directly relating to life safety, property protection, project efficiency, and legal liability. Behind every successful anti-derailment is the avoidance of potential personal injury, equipment damage, project delays, and astronomical compensation claims.

[0004] Chinese Patent Publication No. CN214570107U discloses a lifting anti-disengagement device for hoisting equipment, including a hook and a bending frame. The bending frame includes a closed section and a downwardly bent tensioning section. The end crossbar of the closed section has an inclined section, and a positioning recess is provided in the middle of the inclined section. A movable sleeve is fitted on the end crossbar of the tensioning section. The sleeve has a through hole in the middle, and the top of the connecting sleeve is connected to a movable nut inside the sleeve. The tensioning spring is detachably connected to the bottom of the connecting sleeve. The detachable connection allows the anti-disengagement device to be separated from the hook during transportation and storage, thus avoiding damage caused by collisions during transportation due to the weight of the hook. At the same time, the positioning recess on the end face of the closed section prevents the anti-disengagement device from shifting left and right due to gaps with the hook during use, which could cause the pin to bend and deform, damaging the return spring. However, when hoisting assembled large equipment, the original lifting lugs are insufficient to meet the hoisting stability requirements. It is necessary to connect the hoisting ropes from different positions to ensure the balance of the object during the hoisting process and prevent tilting or overturning. However, the hoisting ropes are prone to falling off during hoisting. Utility Model Content

[0005] The purpose of this utility model is to provide a quick hoisting anti-disengagement device to solve the problem mentioned in the background art that when it is necessary to hoist assembled large equipment, the original lifting lugs are difficult to meet the hoisting stability requirements. It is necessary to connect the hoisting ropes from different positions to ensure the balance of the object during the hoisting process and prevent tilting or overturning. However, the hoisting ropes are prone to falling off during hoisting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid hoisting anti-disengagement device, comprising a large piece of equipment. A positioning flange is provided at the upper end of the large piece of equipment. Protrusions are symmetrically arranged on both sides above the positioning flange. The protrusions are fixedly connected to the outer side of the large piece of equipment. A hoisting rope is sleeved around the outside of the protrusions. Anti-disengagement mechanisms are symmetrically installed on both sides at the upper end of the large piece of equipment. A positioning sleeve is provided at the lower end of the anti-disengagement mechanism. The positioning sleeve is fitted over the positioning flange. A pressure plate is provided inside the positioning sleeve. The lower end face of the pressure plate is in contact with the upper surface of the positioning flange. A clamping frame limiting sleeve is installed above the positioning sleeve. A clamping frame is slidably installed above the clamping frame limiting sleeve. Two limiting plates are provided on one side of the clamping frame. The two limiting plates are respectively in contact with the upper and lower surfaces of the protrusions and limit the hoisting rope sleeved over the protrusions.

[0007] Preferably, the positioning sleeve is fixedly connected to the positioning flange by a locking screw, and two pressure plate locking rods are symmetrically threaded to the upper part of the positioning sleeve, and a pressure plate locking rod push block is provided at the lower end of the pressure plate locking rod.

[0008] Preferably, two symmetrical grooves for locking rods are provided inside the upper end of the clamping plate, and the locking rods are rotatably connected to the grooves for locking rods.

[0009] Preferably, the lower end of the clamping frame is provided with a locking tooth post, the inside of the clamping frame limiting sleeve is symmetrically installed with a locking tooth plate limiting sleeve, the inside of the locking tooth plate limiting sleeve is provided with a locking tooth plate, the upper and lower ends of the locking tooth plate are symmetrically installed with locking tooth plate sliders, the upper and lower ends of the locking tooth plate limiting sleeve are symmetrically provided with locking tooth plate sliding grooves, and the locking tooth plate sliding grooves are slidably connected with the locking tooth plate sliders.

[0010] Preferably, locking toothed plates and locking rods are symmetrically threaded on both sides of the clamping frame limiting sleeve. A locking toothed plate and locking rod push block is fixedly installed at one end of the locking toothed plate and locking rod push block groove is opened inside the locking toothed plate. The locking toothed plate and locking rod push block are rotatably connected to the locking toothed plate and locking rod push block groove.

[0011] Preferably, a plurality of locking teeth are equidistantly arranged on one side of the locking tooth plate, and the locking teeth are engaged with the locking tooth post.

[0012] Preferably, the positioning sleeve has a U-shaped structure, and the lower surface of the pressing plate is provided with an anti-slip pad, which is in contact with the upper surface of the positioning flange.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model directly fits the positioning sleeve of the anti-disengagement mechanism onto the outside of the positioning flange of large equipment, and the limiting plate can be fitted onto the upper and lower surfaces of the protrusion, eliminating the need for complex disassembly or welding operations. Simultaneously, the positioning sleeve and positioning flange are locked in position by inserting a locking screw into the corresponding screw groove, simplifying the installation steps and allowing the anti-disengagement mechanism to quickly connect with large equipment. It adapts to positioning flanges and protrusions of different specifications, reducing the difficulty of installation operations. The two limiting plates on the clamping frame respectively abut against the upper and lower surfaces of the protrusion, enabling the anti-disengagement mechanism to fit onto the outside of the protrusion. The lifting rope forms a two-way limit at both the top and bottom, preventing the rope from slipping off the protrusion during hoisting due to equipment shaking or uneven rope stress. This structurally blocks the risk of the rope falling off, providing safety assurance for the hoisting operation of large equipment. After the positioning sleeve is installed, rotating the locking rod of the pressure plate can move the pressure plate downward and tightly fit it against the upper surface of the positioning flange, forming a double fixation of the positioning sleeve by the locking screw and the pressure plate. This prevents the positioning sleeve from shifting or loosening due to vibration or shaking during hoisting, ensuring the stability of the connection between the anti-disengagement mechanism and the large equipment.

[0015] 2. When it is necessary to lock the height of the clamping frame, rotating the locking tooth plate and locking rod can push the locking tooth plate to move under the limit of the slider and the slide groove until the locking teeth and locking tooth column are precisely engaged, thereby firmly locking the height of the clamping frame and preventing the clamping frame from accidentally sliding up and down during hoisting. Moreover, this locking method is achieved through tooth meshing, and the locking force is stable. At the same time, rotating the locking tooth plate and locking rod in the opposite direction can release the lock, which makes it easy to adjust the height of the clamping frame according to the actual hoisting requirements and the operation is flexible. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a diagram showing the connection relationship between the medium and large-sized equipment and the anti-disengagement mechanism of this utility model;

[0019] Figure 3 This is a diagram showing the connection relationship between the clamping frame and the clamping frame limiting sleeve in this utility model;

[0020] Figure 4 For the present utility model Figure 3 A magnified view of a portion of area A.

[0021] In the diagram: 1. Large equipment; 2. Anti-disengagement mechanism; 3. Protrusion; 4. Lifting rope; 5. Positioning flange; 6. Positioning sleeve; 7. Pressure plate; 8. Locking screw; 9. Clamping frame; 10. Clamping frame limiting sleeve; 11. Pressure plate locking rod; 12. Pressure plate locking rod pushing block; 13. Pressure plate locking rod pushing block groove; 14. Locking tooth column; 15. Locking tooth plate locking rod; 16. Locking tooth plate; 17. Locking tooth plate locking rod pushing block; 18. Locking tooth plate locking rod pushing block groove; 19. Locking tooth plate limiting sleeve; 20. Locking tooth; 21. Locking tooth plate slider; 22. Locking tooth plate slide groove; 23. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment of a rapid hoisting anti-disengagement device, comprising a large piece of equipment 1. A positioning flange 5 is provided at the upper end of the large piece of equipment 1. Protrusions 3 are symmetrically arranged on both sides above the positioning flange 5, and the protrusions 3 are fixedly connected to the outer side of the large piece of equipment 1. A hoisting rope 4 is sleeved on the outside of the protrusions 3. The protrusions 3 are used for the hoisting rope 4 to be sleeved. Anti-disengagement mechanisms 2 are symmetrically installed on both sides of the upper end of the large piece of equipment 1. A positioning sleeve 6 is provided at the lower end of the anti-disengagement mechanism 2, and the positioning sleeve 6 is sleeved on the outside of the positioning flange 5. A pressure plate 7 is provided inside the positioning sleeve 6, and the lower end face of the pressure plate 7 is in contact with the upper surface of the positioning flange 5. A clamping frame limiting sleeve 10 is installed above the positioning sleeve 6, and a clamping frame 9 is slidably installed above the clamping frame limiting sleeve 10. Two limiting plates 23 are provided on one side of the clamping frame 9, and the two limiting plates 23 are respectively attached to the upper and lower surfaces of the protrusions 3 and limit the hoisting rope 4 sleeved on the outside of the protrusions 3.

[0024] With the help of the positioning flange 5 at the top of the large equipment 1 and the protrusions 3 on both sides, the positioning sleeve 6 at the bottom of the anti-disengagement mechanism 2 is sleeved on the outside of the positioning flange 5, and the two limiting plates 23 on one side of the clamping frame 9 are attached to the upper and lower surfaces of the protrusions 3. The positioning sleeve 6 and the positioning flange 5 can achieve the initial positioning and installation of the anti-disengagement mechanism 2 on the large equipment 1. The two limiting plates 23 can also limit the upper and lower positions of the lifting rope 4 sleeved on the outside of the protrusions 3, preventing the lifting rope 4 from falling off the protrusions 3 during the hoisting process. At the same time, the clamping frame 9 can slide above the clamping frame limiting sleeve 10, which makes it easy to adjust the limiting position according to the actual situation of the lifting rope 4, thus improving the flexibility of the device.

[0025] Please see Figure 2 The positioning sleeve 6 is fixedly connected to the positioning flange 5 by the locking screw 8. Two pressure plate locking rods 11 are symmetrically threaded on the upper part of the positioning sleeve 6, and a pressure plate locking rod pushing block 12 is provided at the lower end of the pressure plate locking rod 11. Two pressure plate locking rod pushing block grooves 13 are symmetrically opened inside the upper end of the pressure plate 7, and the pressure plate locking rod pushing block 12 is rotatably connected to the pressure plate locking rod pushing block groove 13.

[0026] By fixing the positioning sleeve 6 to the positioning flange 5 with the locking screw 8, a stable connection between the positioning sleeve 6 and the positioning flange 5 can be quickly achieved, preventing the positioning sleeve 6 from shifting. At the same time, the two pressure plate locking rods 11 with symmetrical threaded connections on the upper part of the positioning sleeve 6 have a pressure plate locking rod pushing block 12 at the lower end that is rotatably connected to the pressure plate locking rod pushing block groove 13 inside the upper end of the pressure plate 7. When the pressure plate locking rod 11 is rotated, the pressure plate 7 can be moved up and down, so that the pressure plate 7 can fit tightly against the upper surface of the positioning flange 5, further enhancing the stability of the connection between the positioning sleeve 6 and the positioning flange 5 and preventing the connection from loosening due to vibration during hoisting.

[0027] Please see Figure 3-4The lower end of the clamping frame 9 is provided with a locking tooth post 14. A locking tooth plate limiting sleeve 19 is symmetrically installed inside the clamping frame limiting sleeve 10. A locking tooth plate 16 is provided inside the locking tooth plate limiting sleeve 19. Locking tooth plate sliders 21 are symmetrically installed at the upper and lower ends of the locking tooth plate 16. Locking tooth plate grooves 22 are symmetrically opened inside the upper and lower ends of the locking tooth plate limiting sleeve 19, and the locking tooth plate grooves 22 are slidably connected to the locking tooth plate sliders 21. Locking tooth plate locking rods 15 are symmetrically threaded on both sides of the clamping frame limiting sleeve 10. A locking tooth plate locking rod push block 17 is fixedly installed at one end of the locking tooth plate locking rod 15. A locking tooth plate locking rod push block groove 18 is opened inside the locking tooth plate 16, and the locking tooth plate locking rod push block 17 is rotatably connected to the locking tooth plate locking rod push block groove 18. Multiple locking teeth 20 are equidistantly arranged on one side of the locking tooth plate 16, and the locking teeth 20 are engaged with the locking tooth post 14.

[0028] The locking tooth post 14 at the lower end of the clamping frame 9, in conjunction with the locking tooth plate 16 in the locking tooth plate limiting sleeve 19 inside the clamping frame limiting sleeve 10, and the sliding engagement of the locking tooth plate sliders 21 at the upper and lower ends of the locking tooth plate 16 with the locking tooth plate sliding grooves 22 inside the locking tooth plate limiting sleeve 19, can ensure the stability of the locking tooth plate 16 when it moves; the locking tooth plate locking rod 15 threaded on both sides of the clamping frame limiting sleeve 10, the locking tooth plate locking rod push block 17 at one end of which is rotatably connected to the locking tooth plate locking rod push block groove 18 inside the locking tooth plate 16, the locking tooth plate locking rod 15 can be rotated to push the locking tooth plate 16 to move, so that the locking tooth 20 on one side of the locking tooth plate 16 meshes with the locking tooth post 14, thereby quickly locking the position of the clamping frame 9, preventing the clamping frame 9 from accidentally sliding during the hoisting process, and ensuring the stability of the limiting effect of the hoisting rope 4.

[0029] Please see Figure 2 The positioning sleeve 6 has a U-shaped structure, and the lower surface of the clamping plate 7 is provided with an anti-slip pad, which is in contact with the upper surface of the positioning flange 5.

[0030] The positioning sleeve 6 is designed with a U-shaped structure, which makes it easier to fit it onto the outside of the positioning flange 5 and simplifies the installation operation. The anti-slip pad on the lower surface of the clamping plate 7 fits against the upper surface of the positioning flange 5, which can increase the friction between the clamping plate 7 and the positioning flange 5, prevent relative sliding between the clamping plate 7 and the positioning flange 5, and further improve the stability of the connection between the positioning sleeve 6 and the positioning flange 5. At the same time, the anti-slip pad can also protect the surface of the positioning flange 5 and prevent the clamping plate 7 from damaging the positioning flange 5.

[0031] Working principle: In use, the anti-disengagement mechanism 2 is fitted onto the outside of the positioning flange 5 of the large equipment 1. The positioning sleeve 6 is aligned with the surface of the positioning flange 5, and the limiting plate 23 is aligned with the upper and lower surfaces of the protrusion 3 of the large equipment 1 and fitted in. The locking screw groove of the positioning sleeve 6 is aligned with the screw groove of the positioning flange 5, and the locking screw 8 is inserted to lock the position of the positioning sleeve 6. Multiple positioning sleeves 6 are evenly spaced. Rotating the clamping plate locking rod 11 allows it to rotate and connect with the positioning sleeve 6 through the thread. As it rotates, it moves downward. The downward movement of the clamping plate locking rod 11 drives the clamping plate 7 to press down, making it fit against the upper surface of the positioning flange 5, thereby achieving connection with the positioning flange 5. To ensure stability, the height of the clamping frame 9 is locked. The locking tooth plate locking rod 15 is rotated, and the locking tooth plate locking rod 15 is rotated to the clamping frame limiting sleeve 10 through the thread. While rotating, it moves to the inside of the clamping frame limiting sleeve 10. The pressing plate locking rod 11 drives the locking tooth plate 16 to move to the inside of the clamping frame limiting sleeve 10 under the limitation of the locking tooth plate slider 21 and the locking tooth plate groove 22, until the locking tooth 20 of the locking tooth plate 16 is in contact with the locking tooth post 14, thereby locking the height of the clamping frame 9. The two limiting plates 23 are respectively in contact with the upper and lower surfaces of the protrusion 3 and limit the suspension rope 4 sleeved on the outside of the protrusion 3, thereby preventing the suspension rope 4 from falling.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid hoisting anti-detachment device, comprising a large piece of equipment (1), wherein a positioning flange (5) is provided at the upper end of the large piece of equipment (1), and protrusions (3) are symmetrically arranged on both sides above the positioning flange (5), the protrusions (3) being fixedly connected to the outer side of the large piece of equipment (1), characterized in that: The protrusion (3) is fitted with a hoisting rope (4). Anti-disengagement mechanisms (2) are symmetrically installed on both sides of the upper end of the large equipment (1). A positioning sleeve (6) is provided at the lower end of the anti-disengagement mechanism (2). The positioning sleeve (6) is fitted on the outside of the positioning flange (5). A pressure plate (7) is provided inside the positioning sleeve (6). The lower end face of the pressure plate (7) is in contact with the upper surface of the positioning flange (5). A clamping frame limiting sleeve (10) is installed above the positioning sleeve (6). A clamping frame (9) is slidably installed above the clamping frame limiting sleeve (10). Two limiting plates (23) are provided on one side of the clamping frame (9). The two limiting plates (23) are respectively attached to the upper and lower surfaces of the protrusion (3) and limit the hoisting rope (4) fitted on the outside of the protrusion (3).

2. The rapid hoisting anti-disengagement device according to claim 1, characterized in that: The positioning sleeve (6) is fixedly connected to the positioning flange (5) by the locking screw (8). Two pressure plate locking rods (11) are symmetrically threaded on the upper part of the positioning sleeve (6). A pressure plate locking rod push block (12) is provided at the lower end of the pressure plate locking rod (11).

3. The rapid hoisting anti-disengagement device according to claim 2, characterized in that: The upper end of the clamping plate (7) has two symmetrically arranged clamping plate locking rod pushing block slots (13), and the clamping plate locking rod pushing block (12) is rotatably connected to the clamping plate locking rod pushing block slots (13).

4. The rapid hoisting anti-disengagement device according to claim 1, characterized in that: The lower end of the clamping frame (9) is provided with a locking tooth post (14). The clamping frame limiting sleeve (10) is symmetrically equipped with a locking tooth plate limiting sleeve (19). The locking tooth plate limiting sleeve (19) is provided with a locking tooth plate (16). The upper and lower ends of the locking tooth plate (16) are symmetrically equipped with locking tooth plate sliders (21). The upper and lower ends of the locking tooth plate limiting sleeve (19) are symmetrically provided with locking tooth plate grooves (22). The locking tooth plate grooves (22) are slidably connected to the locking tooth plate sliders (21).

5. A rapid hoisting anti-disengagement device according to claim 4, characterized in that: The clamping frame limiting sleeve (10) is symmetrically threaded with locking tooth plate locking rods (15) on both sides. A locking tooth plate locking rod push block (17) is fixedly installed at one end of the locking tooth plate locking rod (15). A locking tooth plate locking rod push block groove (18) is opened inside the locking tooth plate (16). The locking tooth plate locking rod push block (17) is rotatably connected to the locking tooth plate locking rod push block groove (18).

6. A rapid hoisting anti-disengagement device according to claim 5, characterized in that: The locking tooth plate (16) has a plurality of locking teeth (20) evenly spaced on one side, and the locking teeth (20) are engaged with the locking tooth post (14).

7. The rapid hoisting anti-disengagement device according to claim 1, characterized in that: The positioning sleeve (6) has a U-shaped structure, and the lower surface of the pressing plate (7) is provided with an anti-slip pad, which is in contact with the upper surface of the positioning flange (5).

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