Cable drawing head and cable

Abstract

The utility model relates to the technical field of cables, in particular to a cable traction head which comprises a traction sleeve, a steel wire mesh is arranged on the inner wall of the traction sleeve, annular grooves are formed in the outer walls of the two ends of the traction sleeve, hoops are connected into the two annular grooves in a sleeved mode, and the steel wire mesh is arranged on the outer walls of the two ends of the traction sleeve. Arc-shaped grooves are annularly formed in the middles of the outer sides of the two hoop sleeves correspondingly, and steel wire ropes are arranged on the outer sides of the arc-shaped grooves. According to the utility model, the traction sleeve, the steel wire mesh, the annular grooves, the hoops and the steel wire ropes are used in cooperation, the traction sleeve is sleeved from the end of the cable, and then the steel wire ropes are used to tighten the hoops sleeved in the two annular grooves until the inner walls of the two ends of the traction sleeve are clamped on the outer skins of the two ends of the cable; therefore, when the traction sleeve is sleeved outside the cable, the contact area is increased due to the action of the steel wire mesh, so that the traction sleeve is not easy to slip off from the sheath of the cable during traction.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable traction head and a cable. Background Art

[0002] Cable is a combination of conductive materials used to transmit electricity, telecommunication signals or data, usually composed of conductors, insulation layers, sheaths and other accessories. Cables can be divided into different types according to their uses. For example, power cables are used to transmit electricity, including low-voltage cables, medium-voltage cables and high-voltage cables, etc. Communication cables are used to transmit telephone, Internet and other communication signals, including fiber optic cables, coaxial cables, etc. Control cables are used to connect control devices and transmit control signals. Instrument cables are used to connect various instruments and transmit measurement signals. Electronic cables are used to connect electronic equipment such as computers, audio systems, etc.

[0003] For example, a cable pulling head disclosed in the authorization announcement number CN220475388U includes a connecting piece, a connecting column, a limiting plate and a mounting column; the limiting plate is located above the mounting column, a first threaded column is fixedly connected to the lower surface of the limiting plate, and a threaded cavity is opened at the top of the mounting column. After adopting the above technical solution, the beneficial effect of the utility model is that since the outer side of the clamping plate is an inclined structure, the clamping plate will clamp the cable when moving.

[0004] The above device has a simple structure and reasonable design, can meet the needs of users, and has great promotion value;

[0005] Although the above patent can clamp the cable when moving, due to the limited contact area between the clamp and the cable sheath, the traction head is easy to fall off from the cable end under strong pulling. Utility Model Content

[0006] The purpose of the utility model is to provide a cable pulling head and a cable to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A cable pulling head comprises a pulling sleeve, a steel wire mesh is arranged on the inner wall of the pulling sleeve, annular grooves are arranged on the outer walls of both ends of the pulling sleeve, hoops are sleeved inside the two annular grooves, arc grooves are arranged in annular shapes in the middle parts of the outer sides of the two hoops, and steel wire ropes are arranged on the outer sides of the arc grooves.

[0009] A cable comprises an outer sheath, wherein a tensile layer is arranged inside the outer sheath, a braided layer is arranged inside the tensile layer, a shielding layer is arranged inside the braided layer, an insulating layer is arranged inside the shielding layer, and a conductor is arranged inside the insulating layer.

[0010] Preferably, the braided layer is braided with galvanized steel wire or glass fiber.

[0011] Preferably, the tensile layer is made of fiber reinforced plastic or aramid reinforced fiber.

[0012] Preferably, the conductor is a copper-clad aluminum wire or a copper alloy wire.

[0013] Preferably, the outer sheath is made of polyurethane.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The cable pulling head and cable are used in combination with a pulling sleeve, a wire mesh, an annular groove, a hoop and a wire rope. The pulling sleeve is inserted from the cable end, and then the wire rope is used to tighten the hoop sleeves sleeved inside the two annular grooves until the inner walls of the pulling sleeve at both ends are clamped on the outer skin of the cable. Since a wire mesh is provided on the inner wall of the pulling sleeve, when the pulling sleeve is sleeved on the outside of the cable, the contact area is increased due to the effect of the wire mesh. In this way, when pulling, the pulling sleeve is not easy to slip off the outer skin of the cable.

[0016] 2. A cable pulling head and a cable have a braided layer added to the cable. The braided layer is woven with galvanized steel wire or glass fiber. The braided layer can increase the tensile strength and tensile resistance of the cable and improve its ability to withstand external tension. The polyurethane material used for the outer sheath has good wear resistance and scratch resistance. In this way, when the cable is pulled, the cable sheath has better wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the wire mesh installation structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the tensile layer of the utility model;

[0020] Figure 4 For the utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. pulling sleeve; 2. wire mesh; 3. annular groove; 4. hoop; 5. arc groove; 6. wire rope; 7. outer sheath; 8. tensile layer; 9. braided layer; 10. shielding layer; 11. insulating layer; 12. conductor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0024] A cable pulling head, comprising a pulling sleeve 1, a steel wire mesh 2 is arranged on the inner wall of the pulling sleeve 1, an annular groove 3 is arranged on the outer wall of both ends of the pulling sleeve 1, a hoop 4 is sleeved inside the two annular grooves 3, an arc groove 5 is annularly arranged in the middle of the outer side of the two hoop 4, and a steel wire rope 6 is arranged outside the arc groove 5; an anti-tension layer 8 is arranged inside the outer sheath 7, a braided layer 9 is arranged inside the anti-tension layer 8, a shielding layer 10 is arranged inside the braided layer 9, an insulating layer 11 is arranged inside the shielding layer 10, and a conductor 12 is arranged inside the insulating layer 11;

[0025] In this embodiment, the pulling sleeve 1 is inserted from the cable end, and then the hoop 4 sleeved inside the two annular grooves 3 is tightened using a wire rope 6 until the inner walls of the pulling sleeve 1 at both ends are clamped on the outer skin of the cable. Since a wire mesh 2 is provided on the inner wall of the pulling sleeve 1, when the pulling sleeve 1 is sleeved on the outside of the cable, the contact area is increased due to the effect of the wire mesh 2, so that when pulling, the pulling sleeve 1 is not easy to slip off the outer skin of the cable.

[0026] like Figure 3 As shown, the braided layer 9 is braided with galvanized steel wire or glass fiber;

[0027] In this embodiment, a braided layer 9 is added to the cable. The braided layer 9 is braided with galvanized steel wire or glass fiber. The braided layer 9 can increase the tensile strength and tensile resistance of the cable and improve its ability to withstand external tension.

[0028] like Figure 3 As shown, the tensile layer 8 is made of fiber-reinforced plastic or aramid reinforced fiber;

[0029] In this embodiment, a tensile layer 8 is used inside the cable. The tensile layer 8 uses fiber-reinforced plastic or aramid reinforced fiber, which can improve the overall strength and tensile resistance of the cable.

[0030] like Figure 3 As shown, the conductor 12 uses a copper-clad aluminum wire or a copper alloy wire;

[0031] In this embodiment, the conductor 12 uses a copper-clad aluminum wire, which can improve the conductivity and mechanical strength of the wire. The conductor 12 uses a copper alloy wire. Adding tin to the copper wire can improve the corrosion resistance of copper, while aluminum can reduce the density of the wire.

[0032] like Figure 3 As shown, the outer sheath 7 is made of polyurethane;

[0033] In this embodiment, the polyurethane material used for the outer sheath 7 has good wear resistance and scratch resistance, so that when the cable is pulled, the cable sheath has better wear resistance.

[0034] Working principle: When the device is in use, the pulling sleeve 1 is inserted from the cable end, and then the hoop 4 sleeved inside the two annular grooves 3 is tightened with a steel wire rope 6 until the inner walls of the pulling sleeve 1 at both ends are clamped on the outer skin of the cable at both ends. Since a steel wire mesh 2 is provided on the inner wall of the pulling sleeve 1, when the pulling sleeve 1 is sleeved on the outside of the cable, the contact area is increased due to the effect of the steel wire mesh 2. In this way, when pulling, the pulling sleeve 1 is not easy to slip off the outer skin of the cable. A braided layer 9 is added to the cable. The braided layer 9 is woven with galvanized steel wire or glass fiber. The braided layer 9 can increase the tensile strength and tensile resistance of the cable and improve its ability to withstand external tension. The conductor 12 uses copper-clad aluminum wire to improve the conductivity and mechanical strength of the wire. The conductor 12 uses copper alloy wire. Adding tin to the copper wire can improve the corrosion resistance of copper, while aluminum can reduce the density of the wire.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cable pulling head, characterized in that: The invention comprises a pulling sleeve (1), wherein a steel wire mesh (2) is arranged on the inner wall of the pulling sleeve (1), an annular groove (3) is arranged on the outer wall at both ends of the pulling sleeve (1), a hoop (4) is sleeved inside the two annular grooves (3), an arc groove (5) is arranged in an annular shape in the middle of the outer side of the two hoop (4), and a steel wire rope (6) is arranged on the outer side of the arc groove (5).

2. A cable, characterized in that: The invention comprises an outer sheath (7), wherein a tensile layer (8) is arranged inside the outer sheath (7), a braided layer (9) is arranged inside the tensile layer (8), a shielding layer (10) is arranged inside the braided layer (9), an insulating layer (11) is arranged inside the shielding layer (10), and a conductor (12) is arranged inside the insulating layer (11).

3. A cable according to claim 2, characterized in that: The braided layer (9) is braided with galvanized steel wire or glass fiber.

4. A cable according to claim 2, characterized in that: The tensile layer (8) uses fiber-reinforced plastic or aramid reinforced fiber.

5. A cable according to claim 2, characterized in that: The conductor (12) is a copper-clad aluminum wire or a copper alloy wire.

6. A cable according to claim 2, characterized in that: The outer sheath (7) is made of polyurethane.

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