Contraction type hook for lifting device
By designing a retractable hook with a sleeve and piston, and using an electronic valve to control the slow unfolding of the hook rod, the problem of difficult equipment retrieval in sewage treatment ponds was solved, and convenient and efficient equipment maintenance was achieved.
Patent Information
- Application Number
- CN202422918152.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In existing technologies, the agitators and flow promoters in sewage treatment tanks are prone to wear or breakage at the connection points between the chains and the equipment, resulting in difficult, costly, and risky equipment salvage and maintenance.
A retractable hook for a lifting device was designed, including a sleeve and a piston. The extension and retraction of the hook rod are controlled by an electronic air valve. The slow extension of the hook rod is achieved by using an elastic element and air pressure difference. It is suitable for hooking different objects.
It enables the rapid retrieval of objects in water, reducing the cost and risk of manual salvage and improving the convenience and safety of equipment maintenance.
Smart Images
Figure CN223575943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hooks, especially to a telescopic hook for hoisting device. BACKGROUND
[0002] In the treatment tank of the sewage plant, the submersible mixer and the submersible flow inducer are usually used to assist the sewage treatment. The mechanical equipment is affected by the water inflow fluctuation and the entanglement of the cilia after working for a long time in the sewage. Therefore, the mixer and the flow inducer need to be regularly checked to remove the sundries and faults on the mechanical equipment and ensure the stability of the mechanical equipment. Generally, the mixer and the flow inducer are installed at the bottom of the tank containing the sewage. The mixer and the flow inducer are connected to the bottom of the tank by the chain through the suspension device. The mixer and the flow inducer are attached to the bottom of the tank and are also suspended by the chain. Since the mixer and the flow inducer vibrate during operation, the connection between the chain and the equipment may continuously rub, and after being corroded by the sewage, the chain and the equipment are easily damaged or broken at the connection. When the equipment is salvaged and repaired, the diver needs to use the manual hooking method to perform the repair work. However, the cost of the diver for a single operation is high, and the risk coefficient of the underwater operation is high. SUMMARY
[0003] The utility model solves the technical problem of the unexpected salvage of the equipment.
[0004] Based on the technical problems in the background art, the utility model provides a telescopic hook for hoisting device, which comprises a sleeve and a piston sliding in the sleeve. A plurality of groove positions communicating with the inside of the sleeve are formed in the same horizontal position of the sleeve. The piston is provided with a groove hole corresponding to the groove position. A hanging rod is horizontally rotatably installed in the groove position. One end of the hanging rod penetrates the groove position and enters the groove hole. The piston sliding in the sleeve can control the opening and closing of the hanging rod on the sleeve.
[0005] Preferably, one end of the piston penetrates the sleeve and forms a first clamping groove with the sleeve. An elastic member is installed in the first clamping groove, and the two ends of the elastic member respectively abut against the sleeve and the piston.
[0006] Preferably, a second clamping groove is formed between the end of the piston away from the elastic member and the sleeve, and the end of the sleeve is provided with an electronic air valve communicating with the second clamping groove.
[0007] Preferably, a trigger is installed at the end of the piston penetrating out of the sleeve, and the trigger can control the operation of the electronic air valve.
[0008] Preferably, a hanging ring is connected to the end of the sleeve away from the elastic member.
[0009] Preferably, the end of the piston located in the second clamping groove is connected with a sealing gasket.
[0010] Preferably, the air pressure in the second clamping groove is greater than one atmosphere.
[0011] Compared with the prior art, the hook for lifting device provided by the utility model adopts the technical scheme, and the following technical effects are achieved.
[0012] The utility model discloses a hooking device for fishing different objects, which can be in a combined state when hooking objects, can expand the hooking rod on the device when touching the bottom of water in water, can quickly expand the hooking rod to hook objects, and can be suitable for fishing different objects. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the contraction of the hooking rod of the utility model;
[0014] Figure 2 It is a schematic diagram of the expansion of the hooking rod of the utility model.
[0015] In the figure: 1, sleeve; 2, piston; 11, slot; 21, slot hole; 3, hooking rod; 41, first clamping groove; 5, elastic member; 42, second clamping groove; 6, electronic air valve; 7, trigger; 8, hanging ring; 9, sealing gasket. DETAILED DESCRIPTION
[0016] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "link", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can indirectly contact through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0017] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it can simply mean that the first feature is higher than the second feature in terms of horizontal height. The first feature can be directly below or obliquely below the second feature, or it can simply mean that the first feature is lower than the second feature in terms of horizontal height.
[0018] EMBODIMENT
[0019] Please refer toFigures 1-2 The utility model provides a kind of hook for hoisting device, including sleeve 1 and piston 2 sliding in sleeve 1, sleeve 1 is equipped with multiple slot positions 11 in sleeve 1 in same horizontal position, piston 2 is provided with the slot hole 21 corresponding slot position 11, slot position 11 is horizontally rotatably installed hanging bar 3, one end of hanging bar 3 passes through slot position 11 to slot hole 21, piston 2 can control hanging bar 3 to open and close on sleeve 1 in sleeve 1 sliding. Figure 1 When piston 2 moves downward, hanging bar 3 will constantly close to sleeve 1, when piston 2 moves upward, slot hole 21 in piston 2 will be misaligned with slot position 11 of sleeve 1, piston 2 will push one end of hanging bar 3, so that hanging bar 3 constantly rotates in the direction away from sleeve 1, at this time, hanging bar 3 will be in an unfolded state.
[0020] In specific embodiments, referring to Figure 1 , Figure 2 One end of piston 2 penetrates sleeve 1 and forms first clamping groove 41 with sleeve 1, and elastic member 5 is installed in first clamping groove 41, and both ends of elastic member 5 abut sleeve 1 and piston 2 respectively. The end of piston 2 away from elastic member 5 forms airtight second clamping groove 42 with sleeve 1, the air pressure in second clamping groove 42 is greater than one atmosphere, and the end of sleeve 1 is provided with electronic air valve 6 communicating with second clamping groove 42. In this scheme, elastic member 5 is in a compressed state, and the elastic force of elastic member 5 is less than the air pressure in second clamping groove 42, at this time, hanging bar 3 is in a contracted state, when the electronic air valve operates, the air pressure in second clamping groove 42 is released and reduced, when the air pressure is less than the elastic force of elastic member 5, elastic member 5 will push piston 2 to slide in second clamping groove 42 in sleeve 1, at this time, second clamping groove 42 will continuously decrease, and hanging bar 3 will be opened.
[0021] In further embodiments, the air pressure in second clamping groove 42 can also be increased by electronic air valve 6, and electronic air valve 6 can control the rate of gas discharge, so in this application, the opening of hanging bar 3 is not instantaneous, but has a buffering process, avoiding damage to hanging bar 3 and accidental touch.
[0022] In specific embodiments, referring to Figure 1 , Figure 2 The end of piston 2 penetrating sleeve 1 is provided with trigger 7, and trigger 7 can control the operation of electronic air valve 6. In this scheme, trigger 7 is installed at the bottom end of the entire device, when the device touches an object, at this time, electronic air valve 6 can be triggered to open, and electronic air valve 6 can slowly release the air pressure in second clamping groove 42, and hanging bar 3 has time to expand, which is convenient for personnel to put the device into the gap of the object.
[0023] In specific embodiments, referring to Figure 1 , Figure 2A hanging ring 8 is connected to the end of the sleeve 1 away from the elastic element 5. In this design, the hanging ring 8 on the sleeve 1 is used to install a chain.
[0024] In a specific embodiment, refer to Figure 1 , Figure 2 Figure 1 Figure 2 The piston 2 is connected to a sealing gasket 9 at its end located within the second clamping groove 42. In this design, the sealing gasket 9 on the piston 2 is used to increase the airtightness within the second clamping groove 42 and prevent the air pressure within the second clamping groove 42 from decreasing in a short period of time.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A shrink hook for a hoisting device, characterized in that The utility model provides a kind of piston valve, including sleeve (1) and piston (2) sliding in sleeve (1), the sleeve (1) is equipped with multiple slot positions (11) in sleeve (1) in the same horizontal position, the piston (2) is provided with slot hole (21) corresponding slot position (11), the slot position (11) is rotatably mounted hanging rod (3) in, one end of the hanging rod (3) passes through slot position (11) to slot hole (21) inside, the piston (2) sliding in sleeve (1) can control hanging rod (3) to open and close on sleeve (1).
2. The shrinker hook for hoisting devices according to claim 1, characterized in that One end of the piston (2) penetrates sleeve (1) and forms first clamping groove (41) with sleeve (1), the first clamping groove (41) is installed with elastic member (5), and both ends of elastic member (5) respectively abut sleeve (1) and piston (2).
3. The shrinker hook for hoisting devices according to claim 2, characterized in that The end of the piston (2) away from elastic member (5) forms airtight second clamping groove (42) with sleeve (1), and the end of the sleeve (1) is installed with electronic gas valve (6) communicating with the second clamping groove (42).
4. The shrinker hook for hoisting devices according to claim 3, characterized in that The end of the piston (2) penetrating out of the sleeve (1) is installed with trigger (7), and the trigger (7) can control the operation of the electronic gas valve (6).
5. The shrinker hook for hoisting devices according to claim 2, characterized in that The end of the sleeve (1) away from the elastic member (5) is connected with a hanging ring (8).
6. The shrinker hook for hoisting devices according to claim 3, characterized in that The end of the piston (2) located in the second clamping groove (42) is connected with a sealing gasket (9).
7. The shrinker hook for hoisting devices according to claim 3, characterized in that The air pressure in the second clamping groove (42) is greater than one atmosphere.