Cable end socket device

Abstract

The utility model relates to a cable end socket, in particular to a cable end socket device which comprises a sheath, one end of the sheath is provided with a baffle, the other end of the sheath is provided with a horn mouth, and the tail end of a cable extends into the sheath through the horn mouth. A sealing ring and a pressing piece which are arranged outside the cable in a sleeving manner are arranged in the horn mouth of the sheath; the outer wall of the sealing ring is attached to the inner wall of the horn mouth, and the pressing piece is installed in the horn mouth of the sheath in a threaded mode. The pressing piece extrudes the sealing ring to form a sealing cavity in the sheath; a one-way valve used for vacuumizing the sealing cavity is arranged in the middle of the baffle. According to the utility model, water vapor and air in the sealing cavity can be pumped out through the one-way valve, so that the sealing cavity with certain vacuum pressure is formed, and the corrosion of the water vapor and gas media to the electric core of the cable can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable head, concretely relates to a cable head device. BACKGROUND

[0002] In the power transmission and distribution line construction, the cable is usually wound on the wire roller in a disc shape and transported to the construction site. During construction, the cable is taken and cut according to the predetermined length, resulting in the remaining cable end exposed on the wire roller. Due to the large volume of the disc-shaped cable and the limited space of the construction site, the cable is usually stored in the open air. However, this storage method has certain hidden dangers: in rainy and snowy weather or when the air humidity is high, water droplets can easily penetrate into the cable from the cable end, thereby corroding the cable core.

[0003] To solve the above problems, the existing technology usually uses an end face heat shrink cap with glue to seal the cable end, which is shrunk by hot air gun or open flame heating to achieve sealing protection of the cable end. However, since the heat shrink cap seals the external water vapor or air during the shrink sealing process, the water vapor or air in the heat shrink cap will continuously corrode the cable end, and the use of open flame during the heat shrink process is not safe. SUMMARY

[0004] The utility model aims at the technical problem that the existing heat shrink cap seals the external water vapor or air during the shrink sealing process, and the water vapor or air in the heat shrink tube continuously corrodes the cable end, and provides a cold-operated cable head device.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A cable head device includes a sheath, one end of the sheath is provided with a baffle, the other end is provided with a horn mouth, and the end of the cable extends into the inside of the sheath through the horn mouth;

[0007] A sealing ring and a pressing member are arranged in the horn mouth of the sheath and cover the outside of the cable; the outer wall of the sealing ring is attached to the inner wall of the horn mouth, and the pressing member is screw-mounted in the horn mouth of the sheath; the pressing member extrudes the sealing ring to form a sealed cavity in the sheath;

[0008] The middle part of the baffle is provided with a one-way valve for vacuumizing the sealed cavity.

[0009] Further, the pressing member includes a pressing stud, and the pressing stud is screw-connected to the inner wall of the horn mouth of the sheath;

[0010] The end of the pressing stud is provided with a tightening nut, and the tightening nut and the pressing stud are both arranged outside the cable.

[0011] Further, a plurality of circumferentially distributed screwing planes are formed on the outer surface of the screwing nut, and a through hole is formed in the middle of the screwing plane along the radial direction of the screwing nut.

[0012] Further, a dustproof cover is arranged on the end of the sheath away from the trumpet mouth.

[0013] Further, a gasket is arranged between the sealing ring and the pressing stud.

[0014] Further, the vacuum pressure in the sealing cavity is -0.92 bar.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The cable sealing head device provided by the utility model has the advantages that: the sealing ring and the pressing member are arranged, after the end of the cable is inserted into the sheath by the pressing member and the sealing ring, the pressing member is rotated to abut the sealing ring between the trumpet mouth of the sheath and the cable, a sealing cavity is formed between the sheath, the cable, the baffle and the sealing ring, the water vapor and air in the sealing cavity can be extracted through the one-way valve, the sealing cavity with a certain vacuum pressure is formed, and the corrosion of water vapor and gas medium on the cable core wire can be effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model embodiment;

[0018] Figure 2 It is a structural schematic view of the sheath in the utility model embodiment;

[0019] Figure 3 It is a structural schematic view of the pressing member in the utility model embodiment;

[0020] Figure 4 It is a left view of Figure 3 .

[0021] Mark 1-sheath, 11-baffle, 12-trumpet mouth, 2-sealing ring, 3-gasket, 4-pressing member, 41-pressing stud, 42-screwing nut, 421-screwing plane, 422-through hole, 5-dustproof cover, 6-one-way valve, 7-cable. DETAILED DESCRIPTION

[0022] The technical solutions in the utility model will be clearly and completely described below with reference to the drawings, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] AsFigure 1 and Figure 2 As shown in

[0024] As shown in Figure 1 As shown in

[0025] As shown in Figure 1 As shown in

[0026] As shown in Figure 3 and Figure 4 As shown in

[0027] As shown in Figure 1 As shown in

[0028] The cable sealing device provided by the embodiment is a device that can be used in cable field construction to seal the end of the remaining cut cable 7 that has not been used and complete, and water vapor and other gases that affect the performance of the power cable 7. The device can effectively prevent water vapor and other gas media from damaging the electrical performance and mechanical performance of the power cable 7 through internal vacuumization.

[0029] In use, first, the sealing ring 2, the cable 7 and the compression member 4 are assembled at the flared mouth 12 of the sheath 1, after assembly, the end of the cable 7 is passed through the compression member 4, the gasket 3 and the sealing ring 2 in turn, when the end of the cable 7 contacts the baffle 11, the wrench is used to tighten the nut 42 until the sealing ring 2 tightly holds the cable 7, at this time the compression member 4 cannot rotate again; second, a circle of adhesive can be applied to the position of the tail end of the sealing ring 2 and the inner side of the gasket 3, after the adhesive is coagulated, the one-way valve 6 is connected with the vacuum pump, the water vapor and air in the sealed cavity are extracted by using the vacuum pump, a vacuum sealed cavity with a vacuum pressure of-0.92bar is formed, which can effectively prevent the end of the cable 7 from being damp and oxidized. In the case that there is no external force damage and large movement bumping, the sealing reliability can last for 3 months or even longer. The sealing head device can be repeatedly used for many times, no hot work is generated at the use site, and the durability and environmental resistance are excellent.

[0030] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical range disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cable end capping device, characterized in that: Includes a sheath (1), one end of which is provided with a baffle (11) and the other end is provided with a flared mouth (12), and the end of the cable (7) extends into the sheath (1) through the flared mouth (12); The sheath (1) has a sealing ring (2) and a clamping member (4) inside the flared opening (12) of the sheath (1) that are fitted onto the outside of the cable (7); the outer wall of the sealing ring (2) fits against the inner wall of the flared opening (12), and the clamping member (4) is threaded into the flared opening (12) of the sheath (1); the clamping member (4) squeezes the sealing ring (2) to form a sealed cavity inside the sheath (1); The baffle (11) is provided with a one-way valve (6) in the middle for evacuating the sealed cavity.

2. The cable end capping device according to claim 1, characterized in that: The clamping component (4) includes a tightening nut (42) and a clamping stud (41) fixed to one end face of the tightening nut (42) and coaxial with the tightening nut (42); The clamping stud (41) is located inside the flared opening (12) of the sleeve (1) and is threaded to the inner wall of the flared opening (12); The tightening nut (42) is located outside the sheath (1).

3. The cable end cap device according to claim 2, characterized in that: The outer surface of the tightening nut (42) is provided with a plurality of circumferentially distributed tightening planes (421), and a through hole (422) is provided in the center of the tightening planes (421) along the radial direction of the tightening nut (42).

4. The cable end capping device according to claim 1, characterized in that: A dust cover (5) is fitted onto the end of the sheath (1) away from the flared end (12).

5. The cable end capping device according to claim 2, characterized in that: A washer (3) is provided between the sealing ring (2) and the clamping stud (41).

6. The cable end capping device according to claim 1, characterized in that: The vacuum pressure inside the sealed cavity is -0.92 bar.

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