Safety catch self-locking hook
By using the limit rod and nut design of the self-locking hook, the safety hazard caused by rope deformation is solved, the contact area is increased, and a safe and reliable self-locking function is achieved. It can adapt to ropes of different sizes and improve the safety and stability of the hook.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杭州汇创进出口有限公司
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing hooks may deform over time or when subjected to the weight of heavy objects, reducing the contact area between the rope and the roller and posing a safety hazard.
Design a self-locking safety buckle hook. By using a limit rod and nut in conjunction with a stop round hole and a stop flat hole, the contact area between the rotating part and the rope is increased. The design of a limit ring and a torsion spring achieves a safe and reliable self-locking function.
It increases the contact area between the rope and the rotating parts, improves the safety of the hook, prevents it from opening easily, saves costs, adapts to the use of ropes of different sizes, and improves safety and stability.
Smart Images
Figure CN224453361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suspension rope technology, and in particular to a self-locking safety buckle hook. Background Technology
[0002] A hook is a device that connects and fixes objects to hang in the air. In daily life, hooks have become very practical and convenient household items. However, existing hooks also have some drawbacks. The rope may deform after long-term use or under the influence of the weight of heavy objects, affecting the contact area between the rope and the roller, thus creating a safety hazard. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a self-locking safety hook, which increases the contact area between the rotating part and the rope by cooperating the limiting rod and nut with the stop round hole and stop flat hole.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-locking safety hook, comprising a first cover plate and a second cover plate that interlock with each other, a working space provided between the first cover plate and the second cover plate, a rotating component provided within the working space, a stop hole one and a stop hole two symmetrically provided between the first cover plate and the second cover plate, a hook provided between the first cover plate and the second cover plate, a torsion spring one cooperating with the hook provided on the first cover plate and the second cover plate, and a limiting rod slidably disposed in two through holes respectively, a nut screwed onto one end of the limiting rod, a sleeve rolledly sleeved on the limiting rod, the sleeve being located between the front and rear side walls of the working space; a limiting ring sleeved on the torsion spring one, a limiting groove provided on the first cover plate and the second cover plate, the limiting ring being located within the limiting groove.
[0005] Preferably, the first cover plate and the second cover plate are further provided with two torsion spring through holes, one above the other. The two ends of the torsion spring are respectively located in the two torsion spring through holes, and the size of the lower torsion spring through hole is larger than that of the upper torsion spring through hole.
[0006] Preferably, the end of the hook is provided with a torsion spring groove, and the torsion spring can be inserted into the torsion spring groove under its own elastic deformation. The right side of the end of the hook is provided with a plane that is high in the middle and low on both sides.
[0007] Preferably, two anti-detachment blocks are provided on the inner sidewall of the limiting ring.
[0008] Preferably, the first stop hole and the second stop hole include two stop circular holes and a stop flat hole. The diameter of the stop circular hole is larger than the width of the stop flat hole. The stop flat hole connects the two stop circular holes. The limiting rod has two symmetrical grooves. The grooves can slide through the stop flat holes.
[0009] Preferably, the rotating component includes a first gear rotatably connected to the first cover plate and a second gear rotatably connected to the second cover plate. The first gear and the second gear are fixedly connected. A plurality of limiting platforms are evenly arranged along the circumference of the first gear on the side near the first cover plate.
[0010] Preferably, the first gear has a insertion hole, and the second gear has a insertion rod. The insertion rod and the insertion hole are fastened together by stamping.
[0011] Preferably, a torsion spring is connected between the limiting push rod and the second cover plate, an anti-slip push button is provided on the limiting push rod, and a sliding groove is provided on the second cover plate, in which the anti-slip push button slides.
[0012] Preferably, the first cover plate and the second cover plate are connected by threads and screws.
[0013] The beneficial effects of this utility model are as follows:
[0014] (1) The design of the limiting ring can limit the torsion spring when the limiting ring is slid into the limiting groove during use, thereby increasing the safety of the hook during use and preventing it from being easily opened.
[0015] (2) The design of the side torsion spring through hole being larger than the upper side torsion spring through hole can increase the range of motion of the end of the torsion spring located in the lower torsion spring through hole when the torsion spring is inserted into the torsion spring slot. The torsion spring can deform through the end of the hook and enter the torsion spring slot by its own material properties. Then the torsion spring returns to its original position and forms a closed state with the hook. This structural design has a significant cost-saving effect.
[0016] (3) Pull the limit rod to align the groove on the limit rod with the stop hole. At this time, the limit rod can slide from one stop hole to another stop hole, so that ropes of different sizes can be brought into contact with the rotating parts to a greater extent, increasing the contact area of the rope and further increasing safety. After adjusting the position, tighten the nut.
[0017] In summary, this utility model has the advantages of multiple safety features that increase the safety of the suspension rope. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0020] Figure 3 This utility model Figure 2A magnified view of a portion of point A in the middle;
[0021] Figure 4 This is a schematic diagram of the structure of the limiting ring of this utility model;
[0022] Figure 5 This is a schematic diagram of the stop hole structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the rotating component structure of this utility model;
[0024] Figure 7 This is a schematic diagram of the limiting rod structure of this utility model. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] Example 1
[0028] Figures 1-7 The illustration shows the self-locking hook of the safety buckle of this utility model.
[0029] like Figure 1As shown, this embodiment provides a self-locking safety hook, including a first cover plate 1 and a second cover plate 2 that are interlocked with each other. A working space 3 is provided between the first cover plate 1 and the second cover plate 2. A rotating component 31 is provided in the working space 3. A stop hole 11 and a stop hole 21 are symmetrically provided between the first cover plate 1 and the second cover plate 2. A hook 4 is provided between the first cover plate 1 and the second cover plate 2. A torsion spring 42 that cooperates with the hook 4 is provided on the first cover plate 1 and the second cover plate 2. It also includes a limiting rod 5 that is slidably provided in two through holes. A nut 52 is screwed onto one end of the limiting rod 5. A sleeve 52 is rolled on the limiting rod 5. The sleeve 52 is located between the front and rear side walls of the working space 3. A limiting ring 421 is sleeved on the torsion spring 42. A limiting groove 6 is provided on the first cover plate 1 and the second cover plate 2. The limiting ring 421 is located in the limiting groove 6.
[0030] In this embodiment, the limit ring 421 can be slid into the limit groove 6 to limit the torsion spring 42, thereby increasing the safety of the hook during use and preventing it from being easily opened. When the torsion spring 42 needs to be opened, simply slide the limit ring 421 upward.
[0031] Combination Figure 2 As shown, the first cover plate 1 and the second cover plate 2 are also provided with two torsion spring through holes 7, one above the other. The two ends of the torsion spring 42 are respectively located in the two torsion spring through holes 7, and the size of the lower torsion spring through hole 7 is larger than that of the upper torsion spring through hole 7.
[0032] In this embodiment, the design that the lower torsion spring through hole 7 is larger than the upper torsion spring through hole 7 can increase the range of motion of the end of the torsion spring 42 located in the lower torsion spring through hole 7 when the torsion spring 42 is inserted into the torsion spring slot 41. The torsion spring 42 can deform through its own material properties to pass over the end of the hook 4 and enter the torsion spring slot 41. Then the torsion spring 42 returns to its original position and forms a closed state with the hook 4.
[0033] Combination Figure 3 As shown, the end of the hook 4 is provided with a torsion spring groove 41. The torsion spring 42 can be inserted into the torsion spring groove 41 under the action of its own elastic deformation. The right side of the end of the hook 4 is provided with a slope 42 that is high in the middle and low on both sides.
[0034] In this embodiment, by providing two inclined ramps 42 on the right side of the end of the hook 4, the process of the upper end of the torsion spring 42 being inclined into the torsion spring slot 41 can be made smoother.
[0035] Combination Figure 4 As shown, two anti-detachment blocks 422 are provided on the inner side wall of the limiting ring 421.
[0036] In this embodiment, the design of two anti-detachment quick-release rings 422 can prevent the limiting ring 421 from slipping out of the torsion spring 42, making it convenient, safe and reliable to use.
[0037] Combination Figure 5 , 7 As shown, the stop hole 11 and the stop hole 22 include two stop circular holes 111 and a stop flat hole 112. The diameter of the stop circular hole 111 is larger than the width of the stop flat hole 112. The stop flat hole 112 connects the two stop circular holes 111. Two countersunk grooves 51 are symmetrically opened on the limiting rod 5. The countersunk grooves 5 can slide through the stop flat hole 112.
[0038] In this embodiment, rotating the nut 52 and pulling the limiting rod 5 aligns the groove 51 on the limiting rod 5 with the stop hole 112. At this time, the limiting rod 5 can slide from one stop hole 111 to the other stop hole 111, thereby allowing ropes of different sizes to abut against the rotating part 31 to a greater extent, increasing the contact area with the rope and further increasing safety. After adjusting the position, tighten the nut 52.
[0039] Combination Figure 6 As shown, the rotating component includes a first gear 32 rotatably connected to the first cover plate 1 and a second gear 33 rotatably connected to the second cover plate 2. The first gear 32 and the second gear 33 are fixedly connected. Multiple limiting platforms 34 are evenly arranged along the circumference of the first gear 33 on the side near the first cover plate 1.
[0040] Combination Figure 6 As shown, the first gear 32 is provided with a plug hole, and the second gear 33 is provided with a plug rod. The plug rod and the plug hole are fastened together by stamping.
[0041] Combination Figure 2 As shown, a limiting push rod 8 is provided on the first cover plate 1, and a torsion spring 2 is connected between the limiting push rod 8 and the first cover plate 1. An anti-slip push button 81 is provided on the limiting push rod 8, and a sliding groove 21 is provided on the second cover plate 2, in which the anti-slip push button 81 slides.
[0042] In this embodiment, the limiting push rod 8, together with the limiting platform 34, limits the rotating part 31 so that it can only rotate clockwise. When counterclockwise rotation is required, the limiting push rod 8 needs to be pushed to separate it from the rotating part 31.
[0043] Combination Figure 1 As shown, the first cover plate 1 and the second cover plate 2 are connected by threads and screws.
[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-locking safety hook, comprising a first cover plate and a second cover plate that interlock with each other, a working space provided between the first cover plate and the second cover plate, a rotating component provided within the working space, a stop hole one and a stop hole two symmetrically provided between the first cover plate and the second cover plate, a hook provided between the first cover plate and the second cover plate, and a torsion spring one cooperating with the hook provided on the first cover plate and the second cover plate, characterized in that... It also includes a limiting rod that is slidably disposed in two through holes, one end of the limiting rod is screwed with a nut, and a sleeve is rolled on the limiting rod, the sleeve being located between the front and rear side walls of the working space; A limiting ring is fitted onto the torsion spring, and the first cover plate and the second cover plate are provided with limiting grooves, with the limiting ring located in the limiting grooves.
2. A carabineer self-locking hook according to claim 1, characterized in that, The first cover plate and the second cover plate are also provided with two torsion spring through holes, one above the other. The two ends of the torsion spring are respectively located in the two torsion spring through holes, and the size of the lower torsion spring through hole is larger than that of the upper torsion spring through hole.
3. A carabineer self locking hook according to claim 1, wherein, The end of the hook is provided with a torsion spring slot, and the torsion spring can be inserted into the torsion spring slot under its own elastic deformation. The right side of the end of the hook is provided with a flat surface that is high in the middle and low on both sides.
4. The carabineer self-locking hook according to claim 1, wherein, Two anti-detachment blocks are provided on the inner wall of the limiting ring.
5. The carabineer self-locking hook according to claim 1, wherein, The stop hole one and stop hole two include two stop circular holes and a stop flat hole. The diameter of the stop circular hole is larger than the width of the stop flat hole. The stop flat hole connects the two stop circular holes. The limiting rod has two countersunk grooves symmetrically opened. The countersunk grooves can slide through the stop flat holes.
6. The carabineer self-locking hook of claim 1, wherein, The rotating component includes a first gear rotatably connected to the first cover plate and a second gear rotatably connected to the second cover plate. The first gear and the second gear are fixedly connected. Multiple limiting platforms are evenly arranged along the circumference of the first gear on the side near the first cover plate.
7. A carabineer self locking hook according to claim 6, wherein, The first gear has a insertion hole, and the second gear has a insertion rod. The insertion rod and the insertion hole are fastened together by stamping.
8. A self-locking safety hook according to claim 1, characterized in that, The first cover plate is provided with a limiting push rod, and a torsion spring is connected between the limiting push rod and the second cover plate. The limiting push rod is provided with an anti-slip push button, and a sliding groove is provided on the second cover plate, in which the anti-slip push button slides.
9. The carabineer self-locking hook according to claim 1, wherein, The first cover plate and the second cover plate are connected by threads and screws.