Rope guide protective sleeve

Abstract

The utility model discloses a rope guide device protective sleeve which comprises a rope guide device body and a detachable protective sleeve assembly, a cable guide opening is formed in the center of the rope guide device body, the protective sleeve is installed in the cable guide opening, and the detachable protective sleeve assembly comprises two gaskets and two pressing pieces. The two gaskets are circumferentially wrapped on the left side and the right side of the inner wall of the cable guide port, the two pressing pieces are circumferentially wrapped on the upper side and the lower side of the inner wall of the cable guide port, and fixing structures are arranged between the pressing pieces and the rope guide device body, and according to the rope guide device protective sleeve, only the abraded gaskets and the abraded pressing pieces need to be replaced when the protective sleeve is abraded. Due to the modular design, installation and fixation are facilitated, meanwhile, damaged parts can be conveniently and specifically replaced, the replacement frequency of the rope guide body is greatly reduced, and production resources and input cost are effectively saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of winch cable guide accessories, specifically relating to a cable guide protective sleeve. Background Technology

[0002] In the operation of special vehicles such as off-road vehicles and engineering vehicles, winches play an extremely important role as a key auxiliary device. Winches are mainly used for vehicle self-rescue, towing heavy objects, and assisting vehicle movement in complex terrain conditions. The rope guide, as one of the core components of the winch, directly affects the reliability and stability of the winch's operation. The main function of the rope guide is to guide the cable to wind and unwind orderly on the winch drum, ensuring that the cable does not become tangled or overlapping during operation, thus guaranteeing efficient and safe operation of the winch. In actual use, the cable guide opening is the critical part for cable entry and exit. When off-road vehicles or engineering vehicles are performing tasks, they often need to frequently pull out or retrieve the cable. During this process, the cable body will repeatedly and continuously rub against the cable guide opening.

[0003] Because cables often bear significant tensile force during operation, the friction under this high-load condition causes rapid wear at the cable guide. With increasing usage time, the wear at the cable guide becomes more severe, even leading to unevenness. Wear and unevenness at the cable guide have numerous negative impacts on cable performance. Firstly, a worn cable guide accelerates cable wear, reduces cable lifespan, and increases equipment maintenance costs. Secondly, an uneven cable guide can cause jamming or misalignment during cable entry and exit, affecting the winch's normal operation and potentially even causing safety accidents.

[0004] Currently, addressing the wear issue at the cable guide opening of winch rope guides requires replacing the entire rope guide, resulting in resource waste. Some methods reduce friction by applying lubricant to the cable guide opening, but the lubricant's effect is short-lived, requiring frequent refills, and it is prone to failure in complex and harsh working environments, failing to fundamentally solve the problem. Therefore, this invention proposes a rope guide protective sleeve that specifically protects the cable guide opening area, extending the rope guide's service life, reducing equipment maintenance costs, and simultaneously improving the safety and stability of winch operation. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rope guide protective sleeve, comprising a rope guide body and a detachable protective sleeve assembly, wherein a cable guide opening is provided at the center of the rope guide body, and the protective sleeve is installed inside the cable guide opening; the detachable protective sleeve assembly includes two gaskets and two pressure plates, wherein the two gaskets circumferentially cover the left and right sides of the inner wall of the cable guide opening, and the two pressure plates circumferentially cover the upper and lower sides of the inner wall of the cable guide opening; and a fixing structure is provided between the pressure plates and the rope guide body.

[0006] As a preferred technical solution of this utility model, the cross-section of the gasket and the pressure plate is a continuously gradually changing arc shape, and its radius of curvature matches the curvature of the inner wall of the cable guide.

[0007] As a preferred embodiment of this utility model, the two ends of the gasket extend to form an overlap portion, and the two ends of the pressure plate are provided with a pressing groove adapted to the overlap portion. The axial positioning of the gasket is achieved by the fitting of the pressing groove with the overlap portion.

[0008] As a preferred technical solution of this utility model, the fixing structure includes at least two pairs of guide posts, a perforation group, and a locking screw. The guide posts are vertically arranged on one side of the pressure plate. The perforation group is composed of stepped through holes opened on the upper and lower sides of the cable guide opening, and the axis of the through holes coincides with the axis of the guide posts. The locking screw is inserted into the perforation group and locked to the guide posts by threads.

[0009] As a preferred technical solution of this utility model, the guide post and the pressure plate are an integral structure, and the guide post and the large-diameter end of the stepped through hole of the perforation group are matched.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) The protective sleeve for the rope guide of this utility model only requires replacement of the worn gaskets and pressure plates when the protective sleeve is worn. The modular design facilitates installation and fixation, and also facilitates targeted replacement of damaged parts, greatly reducing the replacement frequency of the rope guide body and effectively saving production resources and input costs.

[0012] (2) The cross-section of the gasket and pressure plate is designed as a continuous gradient arc, and the radius of curvature is precisely matched with the curvature of the inner wall of the cable guide. The structure achieves all-round and tight protection for the cable guide. Under various working conditions of the cable entering and exiting the cable guide, it can minimize the friction area between the cable and the cable guide, stably and effectively play a protective role, and greatly reduce the wear risk of the cable guide.

[0013] (3) The fixing structure can be firmly fixed at the cable guide opening of the cable guide body when the protective sleeve assembly is subjected to various forces generated by the cable pulling. At the same time, when the protective sleeve is worn and needs to be replaced, the operation is simple, which greatly reduces maintenance costs and time costs. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model installed on the rope guide body;

[0016] Figure 2 This is a cross-sectional structural diagram of the rope guide body in this utility model;

[0017] In the diagram: 1. Rope guide body; 2. Cable guide port; 3. Gasket; 4. Pressure plate; 5. Overlap; 6. Pressing groove; 7. Guide post; 8. Perforation group; 9. Locking screw. Detailed Implementation

[0018] 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.

[0019] Example

[0020] Please see Figure 1-2 The present invention provides the following technical solution: a rope guide protective sleeve, comprising a rope guide body 1 and a detachable protective sleeve assembly. The rope guide body 1 has a cable guide opening 2 at its center. The protective sleeve is installed inside the cable guide opening 2. The detachable protective sleeve assembly includes two gaskets 3 and two pressure plates 4. The two gaskets 3 are circumferentially covering the left and right sides of the inner wall of the cable guide opening 2. The two pressure plates 4 are circumferentially covering the upper and lower sides of the inner wall of the cable guide opening 2. A fixing structure is provided between the pressure plates 4 and the rope guide body 1.

[0021] In order to achieve all-round and tight protection for the cable guide opening 2, minimize the friction area between the cable and the cable guide opening 2, and ensure that the protective sleeve can stably and effectively play a protective role under various working conditions when the cable enters and exits the cable guide opening 2, in this embodiment, as a preferred technical solution of the present invention, the cross-section of the gasket 3 and the pressure plate 4 is a continuous and gradually changing arc shape, and its radius of curvature matches the curvature of the inner wall of the cable guide opening 2.

[0022] To ensure that the gasket 3 remains in a fixed position during frequent cable pulling and to prevent axial displacement from causing protection failure, thereby providing stable and reliable protection for the side of the cable guide 2, in this embodiment, as a preferred technical solution of the present invention, the two ends of the gasket 3 extend to form overlapping portions 5, and the two ends of the pressure plate 4 are provided with pressing grooves 6 that are adapted to the overlapping portions 5. The axial positioning of the gasket 3 is achieved by the fitting of the pressing grooves 6 with the overlapping portions 5.

[0023] In order to ensure that the protective sleeve assembly can still be firmly fixed at the cable guide opening 2 of the cable guide body 1 when subjected to various forces generated by the cable pulling, and at the same time facilitate the replacement and maintenance of worn parts in the future, in this embodiment, as a preferred technical solution of the present invention, the fixing structure includes at least two pairs of guide posts 7, a perforation group 8, and a locking screw 9. The guide posts 7 are vertically arranged on one side of the pressure plate 4. The perforation group 8 is composed of stepped through holes opened on the upper and lower sides of the cable guide opening 2, and the axis of the through holes coincides with the axis of the guide posts 7. The locking screw 9 is inserted into the perforation group 8 and locked to the guide posts 7 by threads.

[0024] In order to improve the positioning accuracy of the guide post 7 during the installation process, and at the same time enhance the stability of the coordinated work of the guide post 7 and the pressure plate 4, and ensure the reliability of the fixing effect, in this embodiment, as a preferred technical solution of the present invention, the guide post 7 and the pressure plate 4 are an integral structure, and the guide post 7 and the large diameter end of the stepped through hole of the perforation group 8 are matched.

[0025] In summary, the protective sleeve comprises two gaskets 3 and two pressure plates 4. The gaskets 3 have a continuously tapering arc cross-section, with a radius of curvature precisely matching the curvature of the inner wall of the cable guide opening 2, thus allowing them to fit tightly against the left and right sides of the inner wall of the cable guide opening 2, providing circumferential protection. Similarly, the pressure plates 4 are also positioned on the upper and lower sides of the inner wall of the cable guide opening 2 in the same way. The gaskets 3 and pressure plates 4 work together to completely separate the portion of the cable directly in contact with the cable guide opening 2, preventing direct friction between the cable and the cable guide opening 2.

[0026] The two ends of the gasket 3 extend to form overlapping portions 5, and the two ends of the pressure plate 4 are provided with matching clamping grooves 6. During installation, the clamping grooves 6 are fitted into the overlapping portions 5 to achieve axial positioning of the gasket 3, ensuring that the gasket 3 will not undergo axial displacement during the pulling of the cable, thus maintaining its effective protection of the side of the cable guide 2.

[0027] The fixing structure between the pressure plate 4 and the rope guide body 1 ensures the stable installation of the entire protective sleeve assembly. During installation, first align the guide post 7 with the stepped through hole of the perforation group 8. The guide post 7 mates with the large-diameter end of the stepped through hole, providing initial positioning and guidance. Next, insert the locking screw 9 into the through hole of the perforation group 8 and lock it to the guide post 7 through the thread. As the locking screw 9 is tightened, the pressure plate 4 is firmly fixed to the rope guide body 1, thereby driving the entire protective sleeve assembly to be securely installed in the cable guide opening 2.

[0028] When the winch is working, the cable enters and exits the cable guide port 2, rubbing against the gasket 3 and pressure plate 4 of the protective sleeve. Because the protective sleeve assembly is made of wear-resistant material, its wear rate is much lower than that of the cable guide port 2 of the cable guide body 1. When the protective sleeve shows a certain degree of wear, only the locking screw 9 needs to be removed, and the worn gasket 3 and pressure plate 4 can be taken out of the cable guide port 2 for replacement. There is no need to replace the entire cable guide body 1, which greatly reduces maintenance costs, extends the service life of the cable guide, and ensures the safety and stability of the winch operation.

[0029] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 protective sleeve for a rope guide, comprising a rope guide body (1) and a detachable protective sleeve assembly, wherein a cable guide opening (2) is provided at the center of the rope guide body (1), and the protective sleeve is installed inside the cable guide opening (2), characterized in that: The detachable protective sleeve assembly includes two gaskets (3) and two pressure plates (4). The two gaskets (3) are circumferentially wrapped around the left and right sides of the inner wall of the cable guide (2), and the two pressure plates (4) are circumferentially wrapped around the upper and lower sides of the inner wall of the cable guide (2). A fixing structure is provided between the pressure plates (4) and the cable guide body (1).

2. The protective sleeve for a rope guide according to claim 1, characterized in that: The cross-sections of the gasket (3) and the pressure plate (4) are continuously gradually changing arcs, and their radii of curvature match the curvature of the inner wall of the cable guide (2).

3. The protective sleeve for a rope guide according to claim 1, characterized in that: The two ends of the gasket (3) extend to form an overlap (5), and the two ends of the pressure plate (4) are provided with a pressing groove (6) that is adapted to the overlap (5). The axial positioning of the gasket (3) is achieved by the fitting of the pressing groove (6) and the overlap (5).

4. A protective sleeve for a rope guide according to claim 1, characterized in that: The fixing structure includes at least two pairs of guide posts (7), a perforation group (8), and a locking screw (9). The guide posts (7) are vertically arranged on one side of the pressure plate (4). The perforation group (8) is composed of stepped through holes opened on the upper and lower sides of the cable guide opening (2), and the axis of the through holes coincides with the axis of the guide posts (7). The locking screw (9) is inserted inside the perforation group (8) and locked to the guide posts (7) by threads.

5. A protective sleeve for a rope guide according to claim 4, characterized in that: The guide post (7) and the pressure plate (4) are an integral structure, and the guide post (7) and the large diameter end of the stepped through hole of the perforation group (8) are matched.

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