Anti-slip paying-off tackle
By adopting a ring-shaped support consisting of a first U-shaped frame and a second U-shaped frame, along with an anti-slip rod structure in the wire-laying pulley, the problems of inconvenient replacement and cable detachment when the wire-laying pulley is damaged are solved, achieving convenient replacement and anti-slip functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-10
AI Technical Summary
The existing cable-laying pulley cannot be replaced while the cable is in the middle when it is damaged, and it cannot effectively prevent the cable from detaching from the pulley.
A ring-shaped bracket consisting of a first U-shaped frame and a second U-shaped frame is used. The bracket is fixed with bolts to facilitate the easy disassembly and installation of the pulley. Anti-slip rods are installed on the ring-shaped bracket to prevent the cable from coming off the pulley.
It enables convenient replacement of pulleys without the need to pull back the cable, and effectively prevents the cable from coming off the pulley, thus improving ease of use and safety.
Smart Images

Figure CN223983275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of line-laying pulley technology, specifically to an anti-slip line-laying pulley. Background Technology
[0002] The main function of a cable laying pulley is to support cables through a pulley structure, reduce friction, and protect the integrity of the cables, thereby improving construction efficiency and safety. In power, construction, and other engineering projects, cable laying pulleys support conductors, ropes, or cables through a pulley structure, keeping them stable during laying or retrieval and preventing direct friction with the ground or entanglement with obstacles.
[0003] The current wire-laying pulley, as per the instruction manual... Figure 5 As shown, it typically includes a ring-shaped support, on which pulleys are rotatably connected. Therefore, current wire-feeding pulleys have the following shortcomings:
[0004] When using a wire-feeding pulley, the end of the cable needs to be passed through the ring bracket. If the wire-feeding pulley is damaged and needs to be replaced, the replacement pulley cannot pass the cable through the ring bracket while the cable is in the middle. The cable must be pulled back and then the end of the cable must be passed through the ring bracket, which is inconvenient to use. Furthermore, the existing wire-feeding pulley cannot effectively prevent the cable supported by the pulley from falling off the pulley. Utility Model Content
[0005] In view of the problems existing in the current anti-slip release trolley, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide an anti-slip cable release pulley, which solves the problem that current cable release pulleys require the cable end to pass through the ring bracket during use. When the cable release pulley is damaged and needs to be replaced, the replacement cable release pulley cannot pass the cable through the ring bracket while the cable is in the middle. The cable must be pulled back and then the cable end must pass through the ring bracket, which is inconvenient. Furthermore, existing cable release pulleys cannot effectively prevent the cable supported by the pulley from detaching from the pulley.
[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0008] An anti-slip line release trolley includes an annular support, on which a pulley is rotatably connected. The annular support is formed by interlocking a first U-shaped frame and a second U-shaped frame, and the first U-shaped frame and the second U-shaped frame are fixed together by bolts.
[0009] As a preferred embodiment of the anti-slip release trolley described in this utility model, the first U-shaped frame has support plates welded to both ends, and the two support plates are rotatably connected to a rotating shaft through bearings, with the pulley fixedly installed on the rotating shaft.
[0010] As a preferred embodiment of the anti-slip release trolley described in this utility model, the top end of the first U-shaped frame is welded with a sleeve ring, the bottom ends of the second U-shaped frame are respectively inserted into the two sleeve rings, and the second U-shaped frame and the sleeve rings are fixed together by bolts.
[0011] As a preferred embodiment of the anti-slip release trolley described in this utility model, the bottom end of the second U-shaped frame is provided with a first internal threaded hole, and the sleeve ring is provided with a second internal threaded hole; the sleeve ring has a cavity for the second U-shaped frame to be inserted.
[0012] As a preferred embodiment of the anti-slip cable release trolley described in this utility model, the second U-shaped frame is provided with an anti-slip structure, which can prevent the cable on the pulley from detaching from the pulley.
[0013] In a preferred embodiment of the anti-slip line release trolley described in this utility model, the anti-slip structure is configured as an anti-slip rod, the two ends of the anti-slip rod are welded to the second U-shaped frame, and the pulley is configured as a first pulley.
[0014] As a preferred embodiment of the anti-slip line release trolley described in this utility model, the anti-slip structure includes an anti-slip rod, the two ends of which are welded to a second U-shaped frame, and a limit frame is welded on the anti-slip rod;
[0015] The pulleys are multiple, and the curvature of the central surface of the multiple pulleys is different.
[0016] Compared with existing technologies:
[0017] 1. By setting the support bracket for the pulley to consist of a first U-shaped frame and a second U-shaped frame, when the wire feeding pulley needs to be replaced, the wire feeding pulley can be directly removed and the new wire feeding pulley can be directly installed in the middle of the cable.
[0018] 2. By installing anti-slip rods on the ring bracket, the cables located on the pulleys can be blocked, preventing the cables from coming off the pulleys. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;
[0020] Figure 2 Provided for Embodiment 1 of this utility modelFigure 1 Side view;
[0021] Figure 3 This is an exploded view of the annular bracket provided in Embodiment 1 of this utility model;
[0022] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention;
[0023] Figure 5 A schematic diagram of the structure of a commonly used pulley provided by this utility model.
[0024] In the figure: First U-shaped frame 1, support plate 3, rotating shaft 4, sleeve ring 5, cavity 51, second internal threaded hole 52, first pulley 6, second U-shaped frame 7, first internal threaded hole 71, anti-slip rod 8, limit frame 9. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] Example 1:
[0027] This utility model provides an anti-slip cable release trolley. Please refer to [link / reference]. Figures 1-3 The device includes an annular support, on which pulleys are rotatably connected. The annular support is formed by interlocking a first U-shaped frame 1 and a second U-shaped frame 7, and the first U-shaped frame 1 and the second U-shaped frame 7 are fixed together by bolts.
[0028] Both ends of the first U-shaped frame 1 are welded with support plates 3, and both support plates 3 are rotatably connected to a rotating shaft 4 via bearings. The pulley is fixedly installed on the rotating shaft 4.
[0029] The top of the first U-shaped frame 1 is welded with a sleeve ring 5, and the bottom of both ends of the second U-shaped frame 7 are respectively inserted into the two sleeve rings 5, and the second U-shaped frame 7 and the sleeve rings 5 are fixed together by bolts.
[0030] The bottom end of the second U-shaped frame 7 is provided with a first internal thread hole 71, and the sleeve ring 5 is provided with a second internal thread hole 52; the sleeve ring 5 has a cavity 51 for the second U-shaped frame 7 to be inserted.
[0031] The second U-shaped frame 7 is equipped with an anti-slip structure, which can prevent the cable on the pulley from coming off the pulley.
[0032] The anti-slip structure is configured as an anti-slip rod 8, with both ends of the anti-slip rod 8 welded to the second U-shaped frame 7. The pulley is configured as a first pulley 6, and the anti-slip rod 8 blocks the top of the first pulley 6 to prevent the cable on the first pulley 6 from coming off the first pulley 6.
[0033] In actual use, during normal use, the end of the cable can be passed through the ring bracket and placed on the first pulley 6; the anti-slip rod 8 blocks the top of the first pulley 6, which can prevent the cable on the first pulley 6 from coming off the first pulley 6;
[0034] When the wire-feeding pulley needs to be replaced, remove the bolts fixing the second U-shaped frame 7 and the sleeve ring 5, and take off the wire-feeding pulley; take a new wire-feeding pulley, remove the bolts fixing the second U-shaped frame 7 and the sleeve ring 5, remove the second U-shaped frame 7, place the cable directly on the first pulley 6 of the new wire-feeding pulley, and then insert the second U-shaped frame 7 and the sleeve ring 5 together, and use bolts to fix the second U-shaped frame 7 and the sleeve ring 5 together.
[0035] Example 2:
[0036] See attached document Figure 4 Unlike Embodiment 1, the anti-slip structure includes an anti-slip rod 8, the two ends of which are welded to the second U-shaped frame 7, and a limit frame 9 is welded on the anti-slip rod 8; the pulley has multiple pulleys, and the curvature of the middle surface of the multiple pulleys is different. The specific curvature is set according to the diameter of the frequently used cable, so that the cable can make more full contact with the pulley surface and reduce cable deformation.
[0037] In actual use, during normal use, the end of the cable can be passed through the ring bracket and placed on the corresponding pulley; the anti-slip rod 8 blocks the top of the corresponding pulley, which can prevent the cable on the corresponding pulley from coming off the corresponding pulley;
[0038] When it is necessary to replace the wire-feeding pulley, remove the bolts fixing the second U-shaped frame 7 and the sleeve ring 5, and take off the wire-feeding pulley; take a new wire-feeding pulley, remove the bolts fixing the second U-shaped frame 7 and the sleeve ring 5, remove the second U-shaped frame 7, place the cable directly on the corresponding pulley of the new wire-feeding pulley, and then insert the second U-shaped frame 7 and the sleeve ring 5 together, and use bolts to fix the second U-shaped frame 7 and the sleeve ring 5 together.
[0039] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An anti-slip pay-off trolley, comprising a ring-shaped support, a pulley being rotatably connected to the ring-shaped support, characterized in that: The annular support is formed by mutually inserting a first U-shaped frame (1) and a second U-shaped frame (7), and the first U-shaped frame (1) and the second U-shaped frame (7) are fixed by bolts.
2. The anti-slip pay-off trolley according to claim 1, characterized in that Both ends of the first U-shaped frame (1) are welded with support plates (3), both support plates (3) are rotatably connected with rotating shafts (4) through bearings, and the pulleys are fixedly installed on the rotating shafts (4).
3. The anti-slip pay-off trolley according to claim 1, characterized in that, The top end of the first U-shaped frame (1) is welded with a sleeving ring (5), both ends of the bottom of the second U-shaped frame (7) are inserted into two sleeving rings (5), and the second U-shaped frame (7) and the sleeving ring (5) are fixed by bolts.
4. The anti-runout pay-off reel of claim 3 wherein, The bottom end of the second U-shaped frame (7) is provided with a first internal thread hole (71), and the sleeving ring (5) is provided with a second internal thread hole (52); the sleeving ring (5) has a cavity (51) for inserting the second U-shaped frame (7).
5. A slip prevention pay-off roller according to claim 4, wherein The second U-shaped frame (7) is provided with an anti-slip structure, and in the presence of the anti-slip structure, the cable on the pulley can be prevented from being separated from the pulley.
6. A slip prevention pay-off roller according to claim 5, wherein The anti-slip structure is an anti-slip rod (8), both ends of the anti-slip rod (8) are welded with the second U-shaped frame (7), and the pulley is a first pulley (6).
7. The anti-runout pay-off reel of claim 5 wherein, The anti-slip structure includes an anti-slip rod (8), both ends of the anti-slip rod (8) are welded with the second U-shaped frame (7), and a limiting frame (9) is welded on the anti-slip rod (8); The pulley has a plurality of pulleys, and the curvatures of the middle surfaces of the plurality of pulleys are different.