Automatic overturning unhooking lifting hook
By adopting a J-type hook design with a clamp and pin connection in the automatic unhooking spreader, combined with a counterweight protrusion and locking mechanism, the problems of complex structure and short service life of existing automatic unhooking spreaders are solved, and low-cost and efficient hooking operation is achieved.
Patent Information
- Application Number
- CN202422622295.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing automatic unhooking lifting devices have complex structures, short service lives, and high costs.
The design employs a J-shaped hook with two opposing clamps connected by a pin shaft, combined with a counterweight protrusion and a locking mechanism, to achieve automatic flipping and disengagement of the hook and position restriction, simplifying the structure and extending its service life.
It achieves a simple hook setup, reduces costs, and improves service life and ease of operation.
Smart Images
Figure CN223752234U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lifting appliance technical field, specifically disclose a kind of automatic overturning unhooking lifting hook. BACKGROUND
[0002] Automatic unhooking lifting appliance is a kind of lifting equipment accessory that can automatically release the hoisted object under certain conditions, and is widely used in various hoisting occasions requiring automation. Automatic unhooking lifting appliance can automatically realize the separation of lifting hook and hoisted object by built-in mechanical structure or electronic control system when reaching preset conditions (such as reaching specified height, receiving specific signal, etc.), without manual intervention. This function greatly improves the safety and efficiency of hoisting operation. Automatic unhooking lifting appliance can be divided into various types according to working principle and structural characteristics, such as mechanical automatic unhooking lifting appliance, hydraulic automatic unhooking lifting appliance, electronic control type automatic unhooking lifting appliance, etc.
[0003] Automatic unhooking lifting appliance is widely used in port, logistics warehouse and construction site. Common automatic unhooking lifting hook, such as the ton bag lifting appliance with automatic unhooking structure disclosed in announcement No. CN218619841U, includes support rod and hook, the top of the support rod is rotatably connected with multiple connecting blocks, the connecting blocks are provided with connecting ports, the top of the support rod is fixedly connected with clamping block, the clamping block is slidably inserted with clamping rod, the connecting blocks are provided with multiple clamping grooves corresponding to the clamping rod, the bottom of the support rod is fixedly connected with multiple lifting lug hanging plates, the bottom of the lifting lug hanging plate is rotatably connected with multiple symmetrical chains, the bottom of the chain is rotatably connected with automatic unhooking device, and the bottom of the automatic unhooking device is rotatably connected with the hook.
[0004] In the above scheme, the hook needs to be additionally provided with an automatic unhooking device, and the automatic unhooking device is complex to set, has short service life and high cost. UTILITY MODEL CONTENT
[0005] In view of the above shortcomings of the prior art, the utility model provides an automatic overturning unhooking lifting hook to solve the problem of complex automatic unhooking device setting, short service life and high cost.
[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0007] The utility model provides an automatic turnover unhooking lifting appliance, including the opposite arrangement of two clamping plates, and the upper and lower ends of two clamping plates are connected through the pin shaft, and the pin shaft on the lower end is hinged with J type hook, and J type hook includes hook body and stem body, and the middle part of stem body is hinged on the pin shaft, and one end of stem body is fixedly connected with hook body, and the back of the other end is provided with counterweight bulge, and the locking mechanism is fixedly arranged between two clamping plates, and the locking mechanism is arranged near the upper end pin shaft, through the setting of counterweight bulge, when the hook body does not hoist goods, can drive J type hook to turn over around the lower end pin shaft, and then makes J type hook separate from goods, and the setting is simple, and the service life is longer, and the cost is lower, through the setting of locking mechanism, when the hook body does not hoist goods, can limit J type hook position, and is convenient to hoist with hook body.
[0008] Preferably, the locking mechanism comprises a limiting block, the limiting block is fixedly arranged between the two clamping plates, and the end of the stem body away from the hook body is fixedly provided with a stop block, when the hook body hoists goods, the J type hook turns over around the lower end pin shaft, and the stop block and the limiting block limit the position of the J type hook.
[0009] Preferably, the limiting block is arranged between the two clamping plates through bolts, which facilitates disassembly and assembly.
[0010] Preferably, the locking mechanism further comprises an elastic limiting assembly arranged in the limiting block, and a groove is arranged on the side wall of the counterweight bulge and matched with the elastic limiting assembly, the elastic limiting assembly and the groove limit the position of the J type hook, facilitating hoisting.
[0011] Preferably, the elastic limiting assembly comprises a blind hole arranged on the limiting block, the blind hole is arranged upwardly from the bottom surface of the limiting block, a spring is fixedly arranged on the bottom surface of the blind hole, one end of the spring away from the bottom surface of the blind hole is fixedly provided with a spherical body, and the groove on the counterweight bulge is matched with the spherical body, the spherical body and the groove limit the position of the J type hook.
[0012] Preferably, the width of the limiting block is equal to the width of the clamping plate, the outer diameter of the spring is smaller than the inner diameter of the blind hole, and the outer diameter of the spherical body is larger than the outer diameter of the spring and smaller than the inner diameter of the blind hole.
[0013] The utility model discloses the beneficial effects that through the setting of counterweight bulge, when the hook body does not hoist goods, can drive J type hook to turn over around the lower end pin shaft, and then makes J type hook separate from goods, and the setting is simple, and the service life is longer, and the cost is lower, through the setting of locking mechanism, when the hook body does not hoist goods, can limit J type hook position, and is convenient to hoist with hook body. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, for the ordinary skilled person in the art, without creating the premise of the labor, also can obtain other drawings according to these drawings.
[0015] Figure 1 Structure diagram of the present application Figure One ;
[0016] Figure 2 Structure diagram of the present application Figure Two ;
[0017] Figure 3 Structure diagram of the present application Figure Three .
[0018] Explanation of reference signs:
[0019] 1-Clamp plate, 2-Pin shaft, 3-J hook, 4-Sphere, 5-Limiting block, 6-Stop block, 7-Spring;
[0020] 301-Hook body, 302-Rod body, 303-Counterweight protrusion. DETAILED DESCRIPTION
[0021] In order to make the personnel in the technical field better understand the technical scheme in the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.
[0022] As shown in Figures 1-3 , an automatic overturning unhooking lifting appliance, comprising two oppositely arranged clamp plates 1, the upper and lower ends of the two clamp plates 1 are connected through pin shafts 2, a J hook 3 is hinged on the lower end pin shaft 2, the J hook 3 comprises a hook body 301 and a rod body 302; the middle part of the rod body 302 is hinged on the pin shaft 2; one end of the rod body 302 is fixedly connected with the hook body 301, and the other end is provided with a counterweight protrusion 303 on the back; a locking mechanism is fixedly arranged between the two clamp plates 1; the locking mechanism is arranged near the upper end pin shaft 2. Through the arrangement of the counterweight protrusion 303, when the hook body 301 does not hoist the goods, the J hook 3 can be driven to overturn around the lower end pin shaft 2, so that the J hook 3 is separated from the goods, the structure is simple, the service life is long, and the cost is low. Through the arrangement of the locking mechanism, the position of the J hook 3 can be limited when the hook body 301 does not hoist the goods, which is convenient for hoisting by the hook body 301.
[0023] In the above arrangement, the locking mechanism comprises a limiting block 5; the limiting block 5 is fixedly arranged between the two clamping plates 1; the end of the rod body 302 away from the hook body 301 is fixedly provided with a stop block 6. When the hook body 301 hoists the goods, the J-shaped hook 3 is flipped around the lower end of the pin shaft 2, and the stop block 6 and the limiting block 5 are used to limit the position of the J-shaped hook 3. The limiting block 5 is arranged between the two clamping plates 1 through bolts, which facilitates disassembly and assembly.
[0024] In the above arrangement, the locking mechanism comprises a limiting block 5; the limiting block 5 is fixedly arranged between the two clamping plates 1; the end of the rod body 302 away from the hook body 301 is fixedly provided with a stop block 6. When the hook body 301 hoists the goods, the J-shaped hook 3 is flipped around the lower end of the pin shaft 2, and the stop block 6 and the limiting block 5 are used to limit the position of the J-shaped hook 3. The limiting block 5 is arranged between the two clamping plates 1 through bolts, which facilitates disassembly and assembly.
[0025] In other alternative embodiments, the elastic limiting assembly comprises a sleeve, a spring is fixedly arranged on the inner bottom surface of the sleeve, one end of the spring away from the bottom surface of the sleeve is fixedly provided with a sleeve rod, and the other end of the sleeve rod away from the spring is provided with a round head.
[0026] Although the utility model has been described in detail with reference to the preferred embodiments and in conjunction with the accompanying drawings, the utility model is not limited thereto. Various equivalent modifications or replacements can be made to the embodiments of the utility model by those skilled in the art without departing from the spirit and essence of the utility model, and these modifications or replacements should be within the scope of the utility model. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. An automatic overturning unhooking hook, comprising two oppositely arranged clamping plates (1), the upper and lower ends of the two clamping plates (1) are connected through a pin shaft (2), and a J-shaped hook (3) is hinged on the pin shaft (2) at the lower end, characterized in that, The J-shaped hook (3) comprises a hook body (301) and a rod body (302); the middle part of the rod body (302) is hingedly connected to the pin shaft (2); one end of the rod body (302) is fixedly connected to the hook body (301), and the other end is provided with a counterweight protrusion (303) on the back surface; the two clamping plates (1) are fixedly provided with a locking mechanism therebetween; the locking mechanism is arranged close to the upper end pin shaft (2); The locking mechanism comprises a limiting block (5); the limiting block (5) is arranged between the two clamping plates (1) through a bolt; the end of the rod body (302) away from the hook body (301) is fixedly provided with a stop block (6).
2. The self-reversing shackle of claim 1, wherein, The locking mechanism further comprises an elastic limiting assembly arranged in the limiting block (5); the counterweight protrusion (303) is provided with a groove on the side wall, which cooperates with the elastic limiting assembly.
3. The self-reversing shackle of claim 2, wherein, The elastic limiting assembly comprises a blind hole arranged on the limiting block (5); the blind hole is arranged upwardly from the bottom surface of the limiting block (5); a spring (7) is fixedly arranged on the bottom surface of the blind hole; one end of the spring (7) away from the bottom surface of the blind hole is fixedly provided with a spherical body (4); the groove on the counterweight protrusion (303) cooperates with the spherical body (4).
4. The self-reversing shackle of claim 3, wherein, The width of the limiting block (5) is equal to the width of the clamping plate (1); the outer diameter of the spring (7) is smaller than the inner diameter of the blind hole; the outer diameter of the spherical body (4) is greater than the outer diameter of the spring (7) and smaller than the inner diameter of the blind hole.