Cable traction device

Abstract

The utility model discloses a cable traction device which comprises a traction rope, a movable joint and a traction head, two ends of the movable joint are respectively provided with a through hole A, the traction rope is connected with the movable joint through a connecting ring A and the through hole A at one end of the movable joint, the traction head is provided with a through hole B, and the traction head is connected with the movable joint through a connecting piece. One end of the connecting piece is connected with the movable joint through the through hole A in the other end of the movable joint, and the other end of the connecting piece is connected with the traction head through the through hole B. According to the utility model, the traction head or the net sleeve assembly can be selected to fix the cable for traction according to needs. The traction head or the net cover assembly can be conveniently replaced in the mode that the electric winch is connected with the traction rope and the traction rope is directly hung on the traction head; the net sleeve assembly is used for dispersing traction force on the cable outer sheath for cable traction laying so as to ensure that a traction rope is connected with a cable head through a movable joint capable of eliminating twisting, and cable twisting is strictly prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable traction, and particularly relates to a cable traction device. Background Art

[0002] When laying cables by using the method of combining an electric winch for traction and a cable laying machine, it is necessary to traction the cables. If the cable end is not processed with a traction head, it is necessary to install a traction head and then hang it on the traction head through a traction rope for traction, or use a cable mesh sleeve to cover the outer sheath of the cable to disperse the traction force for cable traction laying. The traction rope should be connected to the cable head through a swivel joint that can eliminate torsion to prevent the cable from being twisted. Therefore, a traction device that can have a traction head or a cable mesh sleeve is needed to adapt to different construction environments.

[0003] The patent document with the publication number CN218678240U discloses a traction head for power cables, including a fixed end block. The outer side of the fixed end block is symmetrically provided with notch grooves. One end of the fixed end block is horizontally butted with a fixed pair block. The outer side of the fixed pair block is symmetrically provided with notch grooves I. The fixed pair block is horizontally butted with an end fixed block at the end far from the fixed end block. A traction ring body is welded at the end of the end fixed block far from the fixed pair block. A through groove is horizontally opened on the inner side of the fixed end block. An extension pipe body is horizontally welded at the end of the fixed end block close to the fixed pair block. The outer side of the extension pipe body is evenly provided with fixing threads. The threaded splicing structure makes the installation more convenient. At the same time, under the combined bending extrusion fixation, the cable end is fixed more stably, so that the traction will not form a detachment situation. The traction head makes the clamping inner block abut against the extrusion side plate under the support of the support spring to extrude the side of the cable, so that the cable is extruded and fixed at the inner side positions of the side clamping groove and the fixing screw holes. However, after the spring force is lost, the stable fixing performance cannot be guaranteed.

[0004] The patent document with the publication number CN201278442Y discloses a cable pulling mesh sleeve for cable installation construction. It includes a mesh sleeve head, a steel wire rope mesh, and a traction steel wire rope that are connected in sequence. A ring-shaped hinge shaft is provided on the mesh sleeve head. Four cable claws are hinged on the ring-shaped hinge shaft. The front of the cable claws is provided with stepped teeth, and the back is an arc-shaped curved surface. Outside the cable claws, there is an elastic ring that can contact and connect with the arc-shaped curved surface of the cable claws. The braided steel wire ropes of the steel wire rope mesh are embedded and fixed in the mesh sleeve head. The connection between the steel wire rope mesh and the traction steel wire is fixed by pressing through a buckle. This mesh sleeve does not disclose the structure or method for quickly disassembling and assembling the steel wire rope mesh and the traction steel wire. When the mesh sleeve is damaged during actual use, it can only be replaced as a whole, resulting in a high cost. Content of the Utility Model

[0005] To solve the above technical problems, the present utility model provides a cable traction device.

[0006] The present utility model is achieved through the following technical solutions.

[0007] A cable traction device provided by the present utility model includes a traction rope, a swivel joint, and a traction head. Through holes A are respectively provided at both ends of the swivel joint. The traction rope is connected to the through hole A at one end of the swivel joint through a connecting ring A and a connecting member. A through hole B is provided on the traction head, and the traction head is connected to the through hole A at the other end of the swivel joint through a connecting member.

[0008] Preferably, a cable traction device includes a mesh sleeve assembly. The mesh sleeve assembly includes a mesh sleeve and a connecting rod. The mesh sleeve and the connecting rod are connected. A connecting ring B is provided at one end of the connecting rod, and the connecting rod is rotatably connected to the connecting ring B. The connecting ring B is connected to the swivel joint through a connecting member.

[0009] Preferably, a chute A is provided inside the traction head, and heat shrinkable layers are provided on both sides of the chute A. The heat shrinkable layers are located on both sides of the middle or bottom of the chute A.

[0010] Preferably, a chute B, a threaded hole, and a bolt are provided inside the connecting rod. The threaded holes are provided on both sides of the chute B. One end of the mesh sleeve extends into the chute B and is slidably connected. The bolt passes through the mesh sleeve and is connected to the connecting rod through the threaded hole.

[0011] Preferably, a locking ring is provided at the open end of the mesh sleeve, and a fastening member is provided outside the mesh sleeve. The mesh sleeve passes through the fastening member and is connected.

[0012] Preferably, the inner diameter of the mesh sleeve is 10 - 30 mm larger than the outer diameter of the cable.

[0013] Preferably, a washer is provided on the inner wall at the opening of the chute A, and the inner diameter of the washer is smaller than the inner diameter of the chute A.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The present utility model can select to use the traction head or the mesh sleeve assembly as needed to fix the cable for traction. The traction rope can be connected to an electric winch, and the traction rope can be directly hung on the traction head, which is convenient for replacing the traction head or the mesh sleeve assembly; by using the mesh sleeve assembly to disperse the traction force on the outer sheath of the cable for cable traction laying, it is ensured that the traction rope is connected to the cable head through a swivel joint that can eliminate torsion, strictly preventing the cable from being twisted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the traction head of the present utility model;

[0018] Figure 3 It is a schematic structural diagram of Embodiment 2 of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of the mesh sleeve assembly of the present utility model;

[0020] In the figure: 1 - towing rope, 2 - swivel joint, 3 - towing head, 4 - connecting piece, 5 - mesh sleeve assembly, 6 - connecting rod, 11 - connecting ring A, 21 - through hole A, 31 - through hole B, 32 - chute A, 33 - heat shrinkable layer, 34 - washer, 51 - mesh sleeve, 52 - locking ring, 53 - fastener, 61 - connecting ring B, 62 - chute B, 63 - screw hole, 64 - bolt, 7 - cable. Specific embodiments

[0021] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0022] Embodiment 1:

[0023] As shown in Figure 1 、 2 , a cable towing device includes a towing rope 1, a swivel joint 2 and a towing head 3. Through holes A21 are respectively arranged at both ends of the swivel joint 2. The towing rope 1 is connected to the through hole A21 at one end of the swivel joint 2 through a connecting ring A11 and a connecting piece 4. A through hole B31 is arranged on the towing head 3. The towing head 3 is connected to the through hole A21 at the other end of the swivel joint 2 through a connecting piece 4, and the other end of the towing head 3 is connected to a cable 7.

[0024] A chute A32 is arranged inside the towing head 3, and the cable 7 extends into the chute A32 for connection. Heat shrinkable layers 33 are arranged on both sides of the chute A32, and the heat shrinkable layers 33 are located on both sides of the middle or bottom of the chute A32. The heat shrinkable layers 33 are heated to make the connection between the towing head 3 and the cable 7 firm.

[0025] A washer 34 is arranged on the inner wall at the opening of the chute A32, and the inner diameter of the washer 34 is smaller than the inner diameter of the chute A32. The washer 34 can be made of silicone or rubber, and the relatively soft material enables an interference connection with the cable 7 at this place, increasing the stability of the connection firmness.

[0026] Embodiment 2:

[0027] As shown in Figure 3 、 4 , the structure of a cable towing device is basically the same as that of Embodiment 1, except that it does not include a towing head 3 and includes a mesh sleeve assembly 5. The mesh sleeve assembly 5 includes a mesh sleeve 51 and a connecting rod 6. The mesh sleeve 51 and the connecting rod 6 are connected. A connecting ring B61 is arranged at one end of the connecting rod 6, and the connecting rod 6 is rotatably connected to the connecting ring B61. The connecting ring B61 is connected to the swivel joint 2 through a connecting piece 4.

[0028] A locking ring 52 is provided at the open end of the wire mesh sleeve 51, and a fastener 53 is provided outside the wire mesh sleeve 51. The wire mesh sleeve 51 passes through the fastener 53 for connection. After the cable 7 is sleeved into the wire mesh sleeve 51, the locking ring 52 is used to lock the cable 7 at the end of the wire mesh sleeve 51. The fastener 53 may include a wire for fastening the cable 7 from the middle of the wire mesh sleeve 51.

[0029] The inner diameter of the wire mesh sleeve 51 is 10 - 30 mm larger than the outer diameter of the cable 7, which is convenient for sleeving the cable 7 into the wire mesh sleeve 51.

[0030] A chute B62, a threaded hole 63 and a bolt 64 are provided inside the connecting rod 6. The threaded hole 63 is provided on both sides of the chute B62. One end of the wire mesh sleeve 51 extends into the chute B62 for sliding connection. The bolt 64 passes through the wire mesh sleeve 51 and is connected to the connecting rod 6 through the threaded hole 63 to achieve the effect of fixing the wire mesh sleeve 51. Through the setting of the connecting rod 6, it is convenient to quickly replace the wire mesh sleeve 51 when it is damaged.

Claims

1. A cable pulling device, characterized in that: The invention comprises a traction rope (1), a hinge (2) and a traction head (3), wherein through holes A (21) are respectively arranged at both ends of the hinge (2), the traction rope (1) is connected to the through hole A (21) at one end of the hinge (2) via a connecting ring A (11) and a connecting piece (4), the traction head (3) is provided with a through hole B (31), and the traction head (3) is connected to the through hole A (21) at the other end of the hinge (2) via a connecting piece (4).

2. A cable pulling device according to claim 1, characterized in that: The invention comprises a mesh sleeve assembly (5), wherein the mesh sleeve assembly (5) comprises a mesh sleeve (51) and a connecting rod (6), wherein the mesh sleeve (51) and the connecting rod (6) are connected, a connecting ring B (61) is provided at one end of the connecting rod (6), the connecting rod (6) is rotatably connected to the connecting ring B (61), and the connecting ring B (61) is connected to the joint (2) via a connecting piece (4).

3. A cable pulling device according to claim 1, characterized in that: A slide groove A (32) is arranged in the traction head (3), and heat shrinkable layers (33) are arranged on both sides of the slide groove A (32). The heat shrinkable layers (33) are located on both sides of the middle part or bottom of the slide groove A (32).

4. A cable pulling device according to claim 2, characterized in that: A slide groove B (62), a screw hole (63) and a bolt (64) are arranged in the connecting rod (6); the screw holes (63) are arranged on both sides of the slide groove B (62); one end of the mesh sleeve (51) extends into the slide groove B (62) for sliding connection; the bolt (64) penetrates the mesh sleeve (51) and is connected to the connecting rod (6) through the screw hole (63).

5. A cable pulling device according to claim 2, characterized in that: A locking ring (52) is arranged at the open end of the mesh sleeve (51), a fastener (53) is arranged outside the mesh sleeve (51), and the mesh sleeve (51) penetrates the fastener (53) for connection.

6. A cable pulling device according to claim 2, characterized in that: The inner diameter of the mesh sleeve (51) is 10-30 mm larger than the outer diameter of the cable (7).

7. A cable pulling device according to claim 3, characterized in that: A gasket (34) is arranged on the inner wall of the opening of the slide groove A (32), and the inner diameter of the gasket (34) is smaller than the inner diameter of the slide groove A (32).

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