A type of universal pulley

Abstract

This utility model relates to a universal pulley, including a hook, a pulley body support, and a pulley assembly. The pulley assembly includes a base, a pulley, and a side plate. The base and pulley are both mounted on the pulley body support, and the side plate is mounted on the base. A gap is left between the pulley and the base to form a rope-accommodating space. A groove is provided along the circumference of the pulley. Arc-shaped curved surfaces are provided circumferentially between the two ends of the groove and the two ends of the pulley. The groove limits the rope's movement, and the arc-shaped curved surfaces, with one end of the curved surface connecting to the pulley end higher than the end connecting to the groove, further secure the rope. This ensures that when the rope is mounted on the pulley, it is positioned between the two end faces of the pulley, effectively preventing the rope from slipping into the gap between the pulley and the side plate and getting caught when subjected to lateral force, thus ensuring the stability and safety of the universal pulley.

Description

Technical Field

[0001] This utility model relates to a pulley, and more particularly to a universal pulley. Background Technology

[0002] Pulley assemblies are widely used in mountaineering, rappelling, rescue, and outdoor sports, where pulleys are used to wind ropes for high-altitude operations. However, the outer contour of the pulleys in existing pulley assemblies does not match the rope diameter, easily causing rope jamming. This is especially problematic when using ropes with a diameter less than 6mm for electric transmission; under lateral force, the rope is prone to slipping into the gap between the pulley and the side plate, resulting in rope jamming and affecting transmission, causing significant inconvenience to pulley use. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes a universal pulley.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a universal pulley, including a hook, a pulley main support and a pulley assembly, the pulley assembly including a base, a pulley and a side plate, the base and the pulley are both set on the pulley main support, and the side plate is set on the base; a gap is left between the pulley and the base to form a rope holding space; the rope holding space can be closed or opened by rotating the side plate to connect or disconnect the side plate from the base; when the rope holding space is in the open state, a rope can be put into the rope holding space or taken out of the rope holding space.

[0005] The pulley has a groove along its circumference; the two ends of the groove and the two ends of the pulley are respectively provided with arc-shaped curved surfaces, and the end of the arc-shaped curved surface connected to the end of the pulley is higher than the end connected to the groove.

[0006] In a preferred embodiment of this utility model, the groove is semi-circular, and the arc-shaped surface protrudes from the outer wall of the pulley toward the center of the pulley.

[0007] In a preferred embodiment of the present invention, the groove is located at the center of the pulley, and the groove is lower than the lowest end of the arc-shaped surface.

[0008] In a preferred embodiment of this utility model, the hook is a spring-loaded snap hook.

[0009] In a preferred embodiment of this utility model, the outer wall of the hook is provided with an anti-slip layer.

[0010] The beneficial effects of this utility model are as follows: the groove limits the rope, and since the two ends of the groove and the two ends of the pulley are respectively provided with arc-shaped curved surfaces, the end of the arc-shaped curved surface connected to the pulley end is higher than the end connected to the groove. Furthermore, the arc-shaped curved surface further fixes the rope, so that when the rope is installed on the pulley, it is located between the two end faces of the pulley. This effectively prevents the rope from slipping into the gap between the pulley and the side plate and getting stuck when subjected to lateral force, thus ensuring the stability and safety of the universal pulley. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This utility model uses a hook structure.

[0013] Figure 3 This is a schematic diagram of the pulley structure of this utility model on the pulley assembly;

[0014] Figure 4 This is a schematic diagram of the pulley structure of this utility model;

[0015] In the diagram: hook 1; anti-slip layer 101; pulley main support 2; pulley assembly 3; base 301; pulley 302; groove 302a; arc-shaped surface 302b; side plate 303; rope holding space 4. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] 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. They do not indicate or imply that the device or element 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] like Figures 1 to 4 The diagram shows a universal pulley, including a hook 1, a pulley body support 2, and a pulley assembly 3. The pulley assembly 3 includes a base 301, a pulley 302, and a side plate 303. The base 301 and the pulley 302 are both mounted on the pulley body support 2, and the side plate 303 is mounted on the base 301. A gap is left between the pulley 302 and the base 301 to form a rope holding space 4. The rope holding space 4 can be closed or opened by rotating the side plate 303 to connect or disconnect it from the base 301. When the rope holding space 4 is open, a rope can be inserted into or removed from the rope holding space 4.

[0019] The pulley 302 has a groove 302a along its circumference; the two ends of the groove 302a and the two ends of the pulley 302 are respectively provided with arc-shaped curved surfaces 302b, and the end of the arc-shaped curved surface 302b connected to the end of the pulley 302 is higher than the end connected to the groove 302a.

[0020] When using the universal pulley of this utility model, first rotate the side plate 303 to disengage it from the base 301, thus opening the rope-accommodating space 4. When the rope-accommodating space 4 is open, a rope can be inserted into it. Specifically, the rope is wound around the pulley 302. The pulley 302 in this application has a groove 302a along its circumference. When loading the rope onto the pulley 302, the rope is first inserted into the groove 302a. The groove 302a limits the movement of the rope. Furthermore, due to the groove... Both ends of 302a and the two ends of the pulley 302 are respectively provided with arc-shaped curved surfaces 302b. The end of the arc-shaped curved surface 302b connected to the end of the pulley 302 is higher than the end connected to the groove 302a. That is, the arc-shaped curved surface 302b further fixes the rope, so that when the rope is installed on the pulley 302, it is located between the two end faces of the pulley 302. This effectively prevents the rope from slipping into the gap between the pulley and the side plate and getting stuck when subjected to lateral force, thus ensuring the stability and safety of the universal pulley.

[0021] In a preferred embodiment, the groove 302a is semi-circular, which facilitates matching the outer contour shape of the rope and improves the limiting and fixing effect on the rope; the arc-shaped surface 302b is convex from the outer wall of the pulley 302 towards the center of the pulley 302, that is, the arc-shaped surface 302b forms a concave structure, which facilitates that the two end faces of the pulley 302 are higher than the outer contour of the pulley, ensuring the limiting effect of the pulley 302 on the rope.

[0022] In a preferred embodiment, the groove 302a in this application is located at the center of the pulley 302, which facilitates the installation of the rope at the center of the pulley 302. The groove 302a is lower than the lowest end of the arc-shaped surface 302b, which facilitates the limiting function of the groove 302a on the rope.

[0023] In a preferred embodiment, the hook 1 is a spring-loaded snap hook, which facilitates quick opening and closing of the hook, enabling rapid connection of the object to be lifted and improving lifting efficiency. The hook 1 in this application has an anti-slip layer 101 on its outer wall, which helps to increase friction, prevent slippage, and improve the connection efficiency between the hook 1 and the object to be lifted.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A universal pulley, characterized in that, The system includes a hook (1), a pulley main support (2), and a pulley assembly (3). The pulley assembly (3) includes a base (301), a pulley (302), and a side plate (303). The base (301) and the pulley (302) are both mounted on the pulley main support (2), and the side plate (303) is mounted on the base (301). A gap is left between the pulley (302) and the base (301) to form a rope holding space (4). The rope holding space (4) can be closed or opened by rotating the side plate (303) to connect or disconnect the side plate (303) from the base (301). When the rope holding space (4) is open, a rope can be put into the rope holding space (4) or taken out of the rope holding space (4). The pulley (302) has a groove (302a) along its circumference; the two ends of the groove (302a) and the two ends of the pulley (302) are respectively provided with arc-shaped curved surfaces (302b) on their circumference, and the end of the arc-shaped curved surface (302b) connected to the end of the pulley (302) is higher than the end connected to the groove (302a).

2. The universal pulley according to claim 1, characterized in that, The groove (302a) is semi-circular, and the arc-shaped surface (302b) protrudes from the outer wall of the pulley (302) toward the center of the pulley (302).

3. The universal pulley according to claim 1, characterized in that, The groove (302a) is located at the center of the pulley (302), and the groove (302a) is lower than the lowest end of the arc surface (302b).

4. The universal pulley according to any one of claims 1-3, characterized in that, The hook (1) is a spring snap hook.

5. The universal pulley according to claim 4, characterized in that, The hook (1) has an anti-slip layer (101) on its outer wall.

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