Protective devices for traction cables
By combining the fastening element and the traction netting, the problem of interference between the cable's starting end and the conveyor roller at bends is solved, achieving smooth cable transport and protection, and enhancing friction and connection strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHENNAN SALVAGE & DREDGING CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-30
AI Technical Summary
During cable laying, when the wire at the beginning of the cable has larger mesh on the outside of a bend, it is easy for it to interfere with the conveyor roller, which can damage the wire and the conveyor roller and affect the normal transport of the cable.
The cable adopts a combination structure of a fastening element and a traction net sleeve. The fastening element wraps around the starting end of the cable, and the traction net sleeve is placed around the outer periphery of the fastening element and connected to the traction equipment to form an interlocking channel, avoiding exposed wires, enhancing friction and connection strength, and preventing damage.
It effectively protects the cable's starting end conductor, prevents interference with the conveyor roller, ensures smooth cable transport, reduces damage, and improves assembly efficiency and traction effect.
Smart Images
Figure CN224429761U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cable laying auxiliary equipment technology, and in particular to protective devices for traction cables. Background Technology
[0002] During cable laying, traction and conveying equipment are needed to transport the cable along the laying direction. To enable the traction equipment to pull the cable, a cable mesh sleeve is commonly used to connect the two. Before conveying, workers insert the starting end of the cable into the cable mesh sleeve, which is then hooked onto the hook of the traction equipment. As the traction equipment moves forward, the cable mesh sleeve pulls the cable along, thus completing the laying process. To reduce friction between the cable and the ground during movement, workers install multiple conveying devices at intervals along the cable laying direction. The conveyor rollers of these devices provide localized support for the cable, and during cable movement, friction drives the rollers to rotate, converting sliding friction into rolling friction.
[0003] When navigating a curve, the mesh size of the cable sleeve located on the outside of the curve increases, causing the exposed conductor at the beginning of the cable to extend outward through the enlarged mesh. As the cable moves and passes the conveyor roller, the exposed conductor interferes with the roller, and under the traction force, severe friction occurs between the conductor and the conveyor roller, leading to damage to both the conductor and the roller, and affecting the normal transport of the cable. Utility Model Content
[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a protective device for a traction cable, the cable having a starting end, the protective device for the traction cable comprising:
[0005] A fastener that forms an insertion channel and an inlet communicating with the insertion channel, wherein the starting end is inserted into the insertion channel from the inlet, and the fastener wraps around at least a portion of the outer periphery of the starting end;
[0006] A traction net sleeve, the traction net sleeve forming an interpenetrating channel and an opening communicating with the interpenetrating channel, the fastening member being installed in the interpenetrating channel formed by the traction net sleeve and located at the end of the traction net sleeve away from the end forming the opening, the traction net sleeve being sleeved on the outer periphery of the starting end, and the end of the traction net sleeve away from the end forming the opening being connected to the traction device.
[0007] According to one embodiment of this application, the fastener is interference-fitted with the starting end.
[0008] According to one embodiment of this application, the length of the insertion channel formed by the traction net sleeve is greater than the length of the fastening member along the extension direction of the insertion channel, the length of the cable placed in the insertion channel is greater than the length of the cable inserted into the insertion channel, and the traction net sleeve wraps around the outer periphery of the fastening member and part of the outer periphery of the starting end.
[0009] According to one embodiment of this application, the traction net includes a ferrule and a net body. The net body forms the opening, and the ferrule is installed at the end of the net body away from the opening to close the port of the end of the net body away from the opening. The ferrule and the net body together form the insertion channel, and the ferrule is detachably connected to the traction device.
[0010] According to one embodiment of this application, the fastening member includes a guide portion and a receiving portion, wherein one end of the guide portion is connected to the receiving portion, the receiving portion forms the insertion channel and the entrance, and the cross-sectional dimension of the guide portion gradually increases from one end away from the receiving portion to one end closer to the receiving portion in a direction perpendicular to the extension direction of the insertion channel.
[0011] According to one embodiment of this application, the guide portion is hollow inside and communicates with the insertion channel.
[0012] According to one embodiment of this application, at least one anti-slip ridge is formed on the outer peripheral wall of the fastening member, and the anti-slip ridge increases the coefficient of friction of the outer peripheral wall of the fastening member.
[0013] According to one embodiment of this application, the protective device for pulling cables further includes at least one fastening mechanism, which is installed on the outer periphery of the mesh sleeve body to fix the cable to the mesh sleeve body.
[0014] According to one embodiment of this application, the mesh body is woven from multiple strands of steel wire to form a cylindrical structure with rhomboid mesh openings.
[0015] According to one embodiment of this application, the fastening member is made of steel. Attached Figure Description
[0016] Figure 1 A schematic diagram illustrating a usage scenario of the protective device for traction cables described in this application is shown.
[0017] Figure 2 A schematic diagram of the structure of the protective device for traction cables described in this application is shown.
[0018] Figure 3 An exploded view of the fastener and cable described in this application is shown.
[0019] Figure 4A partial structural cross-sectional view of the protective device for traction cables described in this application is shown. Detailed Implementation
[0020] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.
[0021] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, the above terms should not be construed as limitations on this application.
[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0023] refer to Figures 1 to 4 A preferred embodiment of the protective device for a traction cable according to this application will be described in detail below. The protective device for the traction cable includes a fastening member 10 and a traction net sleeve 20.
[0024] refer to Figure 3 and Figure 4 The fastening member 10 forms an insertion channel 101 and an inlet 102 communicating with the insertion channel 101. The cable 90 has a starting end that is inserted into the insertion channel 101 from the inlet 102, and the fastening member 10 wraps around at least a portion of the outer periphery of the starting end such that the inner wall of the insertion channel 101 formed by the fastening member 10 restrains the exposed wire of the starting end.
[0025] refer to Figure 1 and Figure 2The traction net sleeve 20 forms an insertion channel 201 and an opening 202 communicating with the insertion channel 201. The fastening member 10 is installed in the insertion channel 201 formed by the traction net sleeve 20 and is located at the end of the traction net sleeve 20 away from the opening 202. The traction net sleeve 20 is sleeved on the outer periphery of the starting end. By pulling the traction net sleeve 20, the fastening member 10 and the cable 90 are moved, so that the cable 90 is transported. Since the exposed wire at the starting end is hidden in the insertion channel 101, the wire can be prevented from contacting objects on the transport path during the transport of the cable 90, thereby preventing damage to the wire and snagging on objects, thus protecting objects on the transport path and ensuring smooth transport of the cable 90.
[0026] refer to Figure 4 Preferably, the fastening member 10 is interference-fitted with the starting end, so that the fastening member 10 is firmly installed at the starting end, thereby enhancing the connection strength between the fastening member 10 and the cable 90 and preventing the cable 90 from separating from the fastening member 10 during transportation.
[0027] Preferably, the fastening member 10 wraps around the outer periphery of the exposed wire at the starting end and the outer periphery of at least part of the insulation layer at the starting end. The fastening member 10 is press-fitted to the starting end in such a way that the inner wall of the insertion channel 101 squeezes at least part of the insulation layer at the starting end to achieve a sealed assembly effect, which can effectively prevent dust, liquid and other contaminants from entering the insertion channel 101 and avoid contamination of the wire.
[0028] refer to Figure 1 Preferably, the length of the insertion channel 201 formed by the traction net sleeve 20 is greater than the length of the fastening member 10 along the extension direction of the insertion channel 101. In this way, the length of the cable 90 placed in the insertion channel 201 is greater than the length of the cable 90 inserted into the insertion channel 101. This allows the traction net sleeve 20 to wrap around the outer periphery of the fastening member 10 and part of the outer periphery of the starting end, thereby increasing the contact area between the protective device for pulling the cable 90 and the cable 90. This, in turn, increases the friction between the protective device for pulling the cable 90 and the cable 90, preventing the protective device for pulling the cable 90 from separating from the cable 90 under the action of traction force.
[0029] In one embodiment, the fastening member 10 is movably inserted into the traction net sleeve 20. Specifically, after the starting end of the cable 90 is inserted into the insertion channel 101 from the inlet 102 to be assembled with the fastening member 10, the fastening member 10 aligns its end away from the inlet 102 with the opening 202 and moves toward the insertion channel 201 to assemble with the traction net sleeve 20. Since the fastening member 10 and the traction net sleeve 20 are designed separately, and the exposed wires of the cable 90 are already wrapped by the fastening member 10 before assembly with the traction net sleeve 20, the wires can be prevented from being pulled by the traction net sleeve 20 during assembly, ensuring that the assembled combination of the cable 90 and the fastening member 10 can be smoothly assembled with the traction net sleeve 20, thereby improving assembly efficiency.
[0030] In another embodiment, the fastening member 10 is fixedly mounted to the traction net sleeve 20. Specifically, the starting end of the cable 90 extends from the opening 202 into the insertion channel 201, and during its extension into the insertion channel 201, it is inserted into the insertion channel 101 from the inlet 102. In this embodiment, the fastening member 10 and the traction net sleeve 20 are designed as a single unit, thus assembling the cable 90 and the protective device for traction cables in one step, reducing assembly steps and simplifying the assembly work.
[0031] refer to Figure 1 and Figure 2 Specifically, the traction net sleeve 20 includes a clamping member 21 and a net sleeve body 22. The net sleeve body 22 forms the opening 202, and the clamping member 21 is installed at the end of the net sleeve body 22 away from the opening 202 to close the port of the net sleeve body 22 away from the opening 202, so that the clamping member 21 and the net sleeve body 22 together form the insertion channel 201. The clamping member 21 is detachably connected to the traction device, and the traction device pulls the protective device for traction cables and the cable 90 through the clamping member 21.
[0032] Preferably, the clamping member 21 forms a hook structure 211, and the hook of the traction device is assembled with the hook structure 211 formed by the clamping member 21. As an example, the hook structure 211 has a through hole for the hook of the traction device to pass through.
[0033] Specifically, the net sleeve body 22 is woven from multiple strands of steel wire to form a cylindrical structure with rhomboid mesh. Those skilled in the art will understand that when the net sleeve body 22 is subjected to a force along its own axis, its radial diameter expands or contracts. Specifically, when the traction device pulls the net sleeve body 22 through the clamping member 21, the net sleeve body 22 contracts radially inward under the action of gravity and frictional resistance, causing the inner wall of the net sleeve body 22 to adhere tightly to the outer peripheral wall of the initial end and the outer peripheral wall of the fastening member 10. This increases the friction between the net sleeve body 22 and the cable 90, and the fastening member 10, thereby improving the firmness of the assembly between the traction net sleeve 20 and the cable 90. During assembly, when the end face of the mesh body 22 forming the opening 202 is subjected to a squeezing force approaching the opening 202, the end face of the mesh body 22 forming the opening 202 expands outward along its own radial direction, thereby increasing the diameter of the opening 202, so that the initial end or the fastening member 10 can extend into the insertion channel 201 from the opening 202.
[0034] refer to Figure 3 and Figure 4 In one embodiment, the fastening member 10 includes a guide portion 11 and a receiving portion 12, wherein one end of the guide portion 11 is connected to the receiving portion 12. The receiving portion 12 forms the insertion channel 101 and the inlet 102. The cross-sectional dimension of the guide portion 11 gradually increases from the end away from the receiving portion 12 to the end closer to the receiving portion 12 along a direction perpendicular to the extension direction of the insertion channel 101, so that the guide portion 11 is adapted to the inner wall of the end of the net sleeve body 22 near the binding member 21, shortening the distance between the fastening member 10 and the binding member 21, thereby increasing the length of the cable 90 inserted into the insertion channel 201, so as to improve the protection effect and pulling effect of the protective device for pulling the cable on the cable 90.
[0035] It is worth mentioning that, since the cross-sectional dimension of the end of the guide portion 11 away from the receiving portion 12 along the extension direction perpendicular to the insertion channel 101 is small, when the fastening member 10 and the traction net sleeve 20 are designed separately, the guide portion 11 can be easily aligned with the opening 202 and moved into the insertion channel 201. At the same time, the contact area between the outer peripheral wall of the guide portion 11 and the inner wall of the insertion channel 201 is reduced, and the moving resistance of the fastening member 10 is reduced. This reduces the assembly difficulty of the fastening member 10 and the traction net sleeve 20, thereby facilitating assembly by workers and improving assembly efficiency.
[0036] As an example, the guide portion 11 is conical or frustum-shaped.
[0037] Preferably, the fastening member 10 is made of a metal material, such as steel, so that the fastening member 10 has a preset hardness, is not easily deformed, and thus protects the wire.
[0038] Preferably, the guide portion 11 is hollow inside and communicates with the insertion channel 101 to reduce the weight of the fastener 10, thereby reducing the resistance to movement, while also reducing the material used to make the fastener 10 and lowering the manufacturing cost of the fastener 10.
[0039] Preferably, the outer peripheral wall of the fastening member 10 is formed with at least one anti-slip ridge 13, which reduces the smoothness of the outer peripheral wall of the fastening member 10 so as to securely assemble the fastening member 10 with the traction net sleeve 20.
[0040] Furthermore, the protective device for the traction cable also includes at least one fastening mechanism 30, which is installed on the outer periphery of the mesh sleeve body 22 to fix the cable 90 to the mesh sleeve body 22 to prevent the mesh sleeve body 22 from separating from the cable 90.
[0041] In one embodiment, the fastening mechanism 30 is implemented as a binding rope, which is bound to the outer periphery of the net sleeve body 22 to secure the net sleeve body 22 to the cable 90.
[0042] Preferably, the binding rope is inserted through the mesh holes distributed circumferentially on the net sleeve body 22 to prevent the binding rope from moving axially and detaching from the net sleeve body 22 during the transmission of the cable 90, thus ensuring the fixing effect.
[0043] In another embodiment, the fastening mechanism 30 is implemented as a clamp, which is wrapped around the outer periphery of the mesh body 22 for easy assembly and disassembly.
[0044] In some embodiments, the fastening mechanism 30 is implemented as a nylon cable tie.
[0045] Preferably, the protective device for pulling the cable is provided with a plurality of the fastening mechanisms 30, and the fastening mechanisms 30 are installed at intervals along the axial direction of the insertion channel 201 on the outer periphery of the mesh body 22 to enhance the firmness of the connection between the cable 90 and the mesh body 22.
[0046] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.
Claims
1. A protection device for a tow cable, the cable having a starting end portion, characterized in that The protective device for the traction cable includes: A fastener that forms an insertion channel and an inlet communicating with the insertion channel, wherein the starting end is inserted into the insertion channel from the inlet, and the fastener wraps around at least a portion of the outer periphery of the starting end; A traction net sleeve, the traction net sleeve forming an interpenetrating channel and an opening communicating with the interpenetrating channel, the fastening member being installed in the interpenetrating channel formed by the traction net sleeve and located at the end of the traction net sleeve away from the end forming the opening, the traction net sleeve being sleeved on the outer periphery of the starting end, and the end of the traction net sleeve away from the end forming the opening being connected to the traction device.
2. The protective device for traction cables according to claim 1, characterized in that, The fastener is interference-fitted with the starting end.
3. The protective device for traction cables according to claim 2, characterized in that, The length of the insertion channel formed by the traction netting is greater than the length of the fastening member along the extension direction of the insertion channel, the length of the cable placed in the insertion channel is greater than the length of the cable inserted into the insertion channel, and the traction netting wraps around the outer periphery of the fastening member and part of the outer periphery of the starting end.
4. The protective device for traction cables according to claim 3, characterized in that, The traction net includes a ferrule and a net body. The net body forms the opening. The ferrule is installed at the end of the net body away from the opening to close the port of the net body away from the opening. The ferrule and the net body together form the insertion channel. The ferrule is detachably connected to the traction device.
5. The protective device for traction cables according to claim 4, characterized in that, The fastening member includes a guide portion and a receiving portion, wherein one end of the guide portion is connected to the receiving portion, the receiving portion forms the insertion channel and the inlet, and the cross-sectional dimension of the guide portion gradually increases from the end away from the receiving portion to the end closer to the receiving portion in a direction perpendicular to the extension direction of the insertion channel.
6. The protective device for traction cables according to claim 5, characterized in that, The guide section is hollow inside and communicates with the insertion channel.
7. The protective device for traction cables according to claim 6, characterized in that, At least one anti-slip ridge is formed on the outer peripheral wall of the fastener, which increases the coefficient of friction of the outer peripheral wall of the fastener.
8. The protective device for traction cables according to any one of claims 4 to 7, characterized in that, The protective device for pulling cables further includes at least one fastening mechanism, which is installed on the outer periphery of the mesh sleeve body to fix the cable to the mesh sleeve body.
9. The protective device for traction cables according to claim 8, characterized in that, The mesh body is woven from multiple strands of steel wire to form a cylindrical structure with rhomboid mesh openings.
10. The protective device for traction cables according to claim 9, characterized in that, The fastener is made of steel.