Tractor with function of forcibly locking hook head
By incorporating a combination of telescopic rod and threaded sleeve in the puller, the connection strength of the hook is enhanced, solving the problem of rope detachment when the hook of a conventional puller is pulled obliquely or horizontally, thus improving safety.
Patent Information
- Application Number
- CN202520349718.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The safety clip of a conventional traction device is prone to detaching when pulling at an angle or horizontally, posing a safety hazard.
Design a traction device with a strong locking hook function. By setting a telescopic rod and a threaded sleeve, the hook and telescopic rod form a closed loop by using the action of a downward spring, which enhances the connection strength and prevents the rope from falling off.
It effectively prevents the rope from falling off during use, improving the safety and reliability of the traction device.
Smart Images
Figure CN223632939U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of tractor, concretely to a tractor with strong locking hook function. BACKGROUND
[0002] The hand chain block is also called god chain block, chain chain block, chain, jin buo, hand chain block, is a kind of simple, portable hand-operated hoisting machinery, also called "ring chain block" or "chain", it is suitable for short distance hoisting of small equipment and goods, the lifting capacity is generally not more than 10T, the maximum can reach 20T, the lifting height is generally not more than 6m, the shell material of hand chain block is high-quality alloy steel, solid wear-resistant, high safety performance.
[0003] The main function of the conventional tractor (or hand chain block) is to vertically hang and place objects. The safety clip of the tractor hook only has a slight protective effect and is not under stress, so the design is also not under stress. However, in electric power applications, there are often oblique pulling and horizontal pulling applications. The direction of force on the pulled rope is not only the direction of the main pulling force, but also its own gravity. Therefore, the safety clip is often touched and deformed or falls off, causing serious safety hazards.
[0004] Therefore, we propose a tractor with strong locking hook function. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a tractor with strong locking hook function to solve the problems in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tractor with strong locking hook function, comprising a gear box, a lifting chain is arranged at the bottom of the gear box, a lifting box is arranged at the bottom of the lifting chain, a connecting shaft is integrally arranged at the bottom of the lifting box, a rotating plate is rotatably connected through the connecting shaft, a hook is integrally arranged on one side of the bottom of the rotating plate, an extension sleeve is integrally arranged at the other end of the rotating plate, a threaded column located directly below the extension sleeve is integrally arranged at the end of the hook, a telescopic rod is slidably connected through the middle of the extension sleeve, a protective cover is integrally arranged at the bottom of the telescopic rod, a threaded sleeve located directly above the threaded column is rotatably connected at the bottom of the protective cover, and a downward spring is arranged outside the telescopic rod.
[0007] Optionally, a fixed seat is arranged at the top of the gear box, an upper hook is arranged at the top of the fixed seat, and a hand chain is arranged inside the gear box and located outside the lifting chain.
[0008] Optionally, a connecting circular plate is integrally connected to the bottom of the connecting shaft, and the bottom of the rotating plate is in sliding contact with the top of the connecting circular plate.
[0009] Optionally, the top of the telescopic rod is integrally provided with a limiting plate above the telescopic sleeve, and the diameter of the limiting plate is the same as that of the telescopic sleeve.
[0010] Optionally, the bottom of the telescopic sleeve is provided with a spring groove, the top of the pressing spring is fixedly installed in the spring groove, and the bottom of the pressing spring is in close contact with the top of the protective cover.
[0011] Optionally, the length of the threaded sleeve is greater than that of the threaded column, and the threaded sleeve is threadedly connected with the threaded column.
[0012] Optionally, the threaded column, the threaded sleeve and the telescopic rod are coaxial.
[0013] Compared with the prior art, the traction device with the strong hook head locking function has the advantages that:
[0014] The traction device with the strong hook head locking function has the advantages that: the rope is hung on the hook, the protective cover is loosened, the telescopic rod is pressed down under the action of the pressing spring, the threaded sleeve is sleeved on the threaded column, the threaded sleeve is rotated, the threaded sleeve and the threaded column are fixedly installed through the threads, the hook and the telescopic rod form a closed ring, the connection strength is increased, and the rope is prevented from falling off during the use of the hook. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is a whole structure schematic view of the traction device with the strong hook head locking function.
[0016] Fig. 2 It is a structure schematic view of the hoisting box of the traction device with the strong hook head locking function.
[0017] Fig. 3 It is a structure schematic view of the hook of the traction device with the strong hook head locking function.
[0018] In the drawing: 1, gear box; 2, hoisting chain; 3, hoisting box; 4, connecting shaft; 5, rotating plate; 6, hook; 7, threaded column; 8, telescopic sleeve; 9, telescopic rod; 10, protective cover; 11, threaded sleeve; 12, pressing spring; 13, spring groove; 14, limiting plate; 15, connecting circular plate; 16, fixed seat; 17, upper hook; 18, hand chain. DETAILED DESCRIPTION
[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0020] Please refer to Figs. 1 to 3 The utility model provides a kind of tractor with strong lock hook function, including gear box 1, the bottom of gear box 1 is provided with hoisting chain 2, the bottom of hoisting chain 2 is provided with hoisting box 3, the bottom of hoisting box 3 is integrally provided with connecting shaft 4, rotating plate 5 is rotatably connected by penetrating connecting shaft 4, the side of rotating plate 5 bottom is integrally provided with hook 6, the other end of rotating plate 5 is integrally provided with telescopic sleeve 8, the end of hook 6 is integrally provided with threaded column 7 located just below telescopic sleeve 8, telescopic rod 9 is slidably connected by penetrating the middle part of telescopic sleeve 8, the bottom of telescopic rod 9 is integrally provided with protective cover 10, the bottom of protective cover 10 is rotatably connected with threaded sleeve 11 located just above threaded column 7, lower spring 12 is sheathed on the outside of telescopic rod 9, by setting telescopic rod 9 and threaded sleeve 11, hanging rope is high on hook 6, loosen protective cover 10, under the action of lower spring 12, telescopic rod 9 is pressed down, and threaded sleeve 11 is sleeved on threaded column 7, threaded sleeve 11 is rotated, so that threaded sleeve 11 and threaded column 7 are fixedly installed by thread, so that hook 6 and telescopic rod 9 form a closed ring, increase the connection strength, prevent the rope from falling off during the use of hook 6.
[0021] The top of gear box 1 is provided with fixed seat 16, the top of fixed seat 16 is provided with upper hook 176, gear box 1 is provided with hand pull chain 18 located outside hoisting chain 2.
[0022] The bottom of connecting shaft 4 is integrally connected with connecting round plate 15, the bottom of rotating plate 5 is in sliding contact with the top of connecting round plate 15.
[0023] The top of telescopic rod 9 is integrally provided with limiting plate 14 located above telescopic sleeve 8, the diameter of limiting plate 14 is same with the diameter of telescopic sleeve 8, spring groove 13 is arranged in the bottom of telescopic sleeve 8, the top of lower spring 12 is fixedly installed in the inside of spring groove 13, the bottom of lower spring 12 is in close contact with the top of protective cover 10, the length of threaded sleeve 11 is greater than the length of threaded column 7, threaded sleeve 11 is threadedly connected with threaded column 7, threaded column 7, threaded sleeve 11 and telescopic rod 9 are coaxially arranged.
[0024] Working principle:
[0025] The rope is hung on the hook 6, the protective cover 10 is loosened, the telescopic rod 9 is pressed down under the action of the pressing spring 12, the threaded sleeve 11 is sleeved on the threaded column 7, the threaded sleeve 11 is rotated to make the threaded sleeve 11 and the threaded column 7 fixedly installed through threads, the hook 6 and the telescopic rod 9 form a closed ring, the connection strength is increased, and the rope is prevented from falling off during use of the hook 6.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A retractor having a strong catch head function, comprising a gear box (1), characterized in that, The bottom of the gear box (1) is provided with a lifting chain (2), the bottom of the lifting chain (2) is provided with a lifting box (3), the bottom of the lifting box (3) is integrally provided with a connecting shaft (4), the connecting shaft (4) is rotatably connected with a rotating plate (5) penetrating through, one side of the bottom of the rotating plate (5) is integrally provided with a hook (6), the other end of the rotating plate (5) is integrally provided with an extension sleeve (8), the end of the hook (6) is integrally provided with a threaded column (7) located directly below the extension sleeve (8), the middle of the extension sleeve (8) is slidably connected with an extension rod (9) penetrating through, the bottom of the extension rod (9) is integrally provided with a protective cover (10), the bottom of the protective cover (10) is rotatably connected with a threaded sleeve (11) located directly above the threaded column (7), the outside of the extension rod (9) is sleeved with a pressing spring (12).
2. The distractor with a strong detent head function according to claim 1, characterized in that The top of the gear box (1) is provided with a fixed seat (16), the top of the fixed seat (16) is provided with an upper hook (17) (6), the inside of the gear box (1) is provided with a zipper (18) located outside the lifting chain (2).
3. The distractor with a strong detent head function according to claim 1, wherein The bottom of the connecting shaft (4) is integrally connected with a connecting circular plate (15), the bottom of the rotating plate (5) is in sliding contact with the top of the connecting circular plate (15).
4. The distractor with a strong detent head function according to claim 1, wherein The top of the extension rod (9) is integrally provided with a limiting plate (14) located above the extension sleeve (8), the diameter of the limiting plate (14) is the same as the diameter of the extension sleeve (8).
5. The distractor with a strong detent head function according to claim 1, wherein The bottom of the extension sleeve (8) is provided with a spring groove (13), the top of the pressing spring (12) is fixedly installed with the inside of the spring groove (13), the bottom of the pressing spring (12) is in abutting contact with the top of the protective cover (10).
6. The distractor with a strong detent head function according to claim 1, wherein The length of the threaded sleeve (11) is greater than the length of the threaded column (7), the threaded sleeve (11) is threadedly connected with the threaded column.
7. The distractor with a strong detent head function according to claim 1, wherein The threaded column (7), the threaded sleeve (11) and the extension rod (9) are coaxially arranged.