Cable with improved structure

Abstract

The utility model provides a cable with an improved structure, which solves the problem that the structure of the existing cable is not stable. The cable with the improved structure comprises a cable body and a rubber sleeve fixed outside the cable body in a vulcanization mode, a bolt hole axially penetrates through the outer wall of the rubber sleeve, the cable body comprises at least two wires located inside, the front ends of the wires extend to the outside of the cable body, and the front end of the rubber sleeve extends forwards to form a sheath coaxial with the rubber sleeve; the front end of the cable body extends forwards and is completely located in the sheath, and the front end of the wire extends out of the sheath. The sheath is filled with epoxy resin. The cable with the improved structure is stable in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cables, in particular to a kind of cable of structural improvement. BACKGROUND

[0002] Cable is a kind of cable with insulating layer and protective outer skin, usually thicker, by multiple insulated wires, multiple in the air or buried in underground, bottom, for telecommunications or power transmission.

[0003] The existing cable structure is like the cable of high flame retardance for oil platform disclosed in Chinese patent library (application number: 202010363495.X), including cable body, the cable body includes conductor located in the middle, the conductor is wound with wrapping layer, a layer of insulating layer is coated on the outer of multiple conductors, and a layer of outer sheath is coated on the outer of the insulating layer;Insulating layer and outer sheath adopt double-layer co-extrusion vulcanization molding.

[0004] In the above-mentioned cable, the outer sheath is fixed by vulcanization bonding, which is easy to bond in the cable end portion, and is easy to separate fault under external force, which affects the protection effect of the cable body. UTILITY MODEL CONTENT

[0005] The utility model aims at the above-mentioned problems existing in prior art, and proposes a kind of cable of structural improvement of structural stability.

[0006] The utility model can be realized by the following technical scheme: a kind of cable of structural improvement, including cable body and rubber sleeve fixed in the outer of cable body by vulcanization, bolt hole is axially penetrated on the outer wall of rubber sleeve, cable body includes at least two wires in the inside, and wire front end extends to the outside of cable body, characterized in that, rubber sleeve front end extends to form the sheath coaxial with rubber sleeve;Cable body front end extends forward and is completely in the sheath, and wire front end extends out of the sheath;The sheath is filled with epoxy resin.

[0007] Under the action of epoxy resin, a sealed whole is formed between the front end of the cable body and the rubber sleeve, effectively strengthening the stability and sealing property of the connection between the two, so that the rubber sleeve plays a better protective role on the front end of the cable body, with the advantages of structural stability, long service life and the like.

[0008] In the above-mentioned cable of structural improvement, the inner wall of the above-mentioned sheath is formed with annular shoulder, and the shoulder is coaxially arranged with the sheath. The setting of the shoulder can make the inner wall of the sheath become tortuous, so that the epoxy resin is more firmly attached to connect the rubber sleeve and the cable body into a whole, making the cable structure more stable.

[0009] In the cable with the improved structure, the front ends of the shoulder and the sheath are flush with each other, and the epoxy resin extends to the inner hole of the shoulder. The above design is conducive to epoxy resin filling.

[0010] In the above-mentioned cable with improved structure, the axial length of the shoulder is greater than the radial thickness of the sheath, so as to enhance the strength of the front end of the sheath.

[0011] In the above-mentioned cable with improved structure, an annular positioning step is formed between the outer wall of the sheath and the outer wall of the rubber sleeve, and the positioning step is coaxially arranged with the rubber sleeve. The positioning step is used to limit the installation of the sheath and facilitate cable installation.

[0012] Compared with the existing technology, the cable with improved structure has the following advantages:

[0013] 1. Under the action of epoxy resin, a sealed whole is formed between the front end of the cable body and the rubber sleeve, which effectively enhances the stability and sealing of the connection between the two, so that the rubber sleeve can better protect the front end of the cable body, and has the advantages of stable structure and long service life.

[0014] 2. The setting of the shoulder can make the inner wall of the sheath become tortuous, so that the epoxy resin can adhere more firmly and connect the rubber sheath and the cable body into a whole, making the cable structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the cable with improved structure.

[0016] Figure 2 It is a structural diagram of the rubber sleeve.

[0017] In the figure, 1. Cable body; 1a. Conductor; 2. Rubber sleeve; 2a. Limit seat; 2b. Bolt hole; 2c. Sheath; 2c1. Shoulder stop; 2d. Positioning step; 3. Epoxy resin. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 As shown, the cable with improved structure comprises a cable body 1 and a rubber sleeve 2 sleeved on the outside of the cable body 1, and preferably the rubber sleeve 2 and the cable body 1 are fixed together by vulcanization.

[0020] in,

[0021] The rubber sleeve 2 has a bolt hole 2b axially penetrating the outer wall, and in the actual product, the outer wall of the rubber sleeve 2 has a limiting seat 2a in the form of a ring, and the bolt hole 2b is arranged on the limiting seat 2a. Preferably, the bolt hole 2b has two and is uniformly distributed along the circumference of the rubber sleeve 2.

[0022] As shown in Figure 1 and Figure 2 , the cable body 1 is a product in existence, which includes at least two wires 1a inside, and the front ends of the wires 1a extend to the outside of the cable body 1. The front end of the rubber sleeve 2 extends forward to form a sheath 2c coaxial with the rubber sleeve 2, the front end of the cable body 1 extends forward and is completely inside the sheath 2c, and the front end of the wire 1a extends out of the sheath 2c; the sheath 2c is filled with epoxy resin 3.

[0023] Under the action of the epoxy resin 3, a sealed whole is formed between the front end of the cable body 1 and the rubber sleeve 2, effectively strengthening the stability and sealing of the connection between the two, so that the rubber sleeve 2 plays a better protective role on the front end of the cable body 1, and has the advantages of stable structure, long service life, etc.

[0024] Further, the inner wall of the sheath 2c is formed with a ring-shaped shoulder 2c1, and the shoulder 2c1 is coaxially arranged with the sheath 2c. The arrangement of the shoulder 2c1 makes the inner wall of the sheath 2c become tortuous, so that the epoxy resin 3 more firmly adheres to connect the rubber sleeve 2 and the cable body 1 into a whole, making the cable structure more stable. Preferably, the front end faces of the shoulder 2c1 and the sheath 2c are flush, and the above-mentioned epoxy resin 3 extends into the inner hole of the shoulder 2c1. The above design is conducive to the filling of the epoxy resin 3.

[0025] Further, the inner side surface of the shoulder 2c1 is a smooth circumferential surface, and the axial length of the shoulder 2c1 is greater than the radial thickness of the sheath 2c, so as to enhance the strength of the front end of the sheath 2c.

[0026] In the actual product, a positioning step 2d in the form of a ring is formed between the outer wall of the sheath 2c and the outer wall of the rubber sleeve 2, and the positioning step 2d is coaxially arranged with the rubber sleeve 2. The positioning step 2d is used for limiting the installation of the sheath 2c, facilitating the installation of the cable.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A cable with an improved structure, comprising a cable body (1) and a rubber sleeve (2) fixed to the outside of the cable body (1) by vulcanization, wherein a bolt hole (2b) is axially penetrated on the outer wall of the rubber sleeve (2), the cable body (1) comprises at least two wires (1a) located inside, and the front ends of the wires (1a) extend to the outside of the cable body (1), characterized in that: The front end of the rubber sleeve (2) extends forward to form a sheath (2c) coaxial with the rubber sleeve (2); the front end of the cable body (1) extends forward and is completely within the sheath (2c), and the front end of the wire (1a) extends out of the sheath (2c); and the sheath (2c) is filled with epoxy resin (3).

2. The cable with improved structure according to claim 1, characterized in that: An annular shoulder (2c1) is formed on the inner wall of the aforementioned sleeve (2c), and the shoulder (2c1) and the sleeve (2c) are coaxially arranged.

3. The cable with improved structure according to claim 2, characterized in that: The front end surfaces of the shoulder (2c1) and the sleeve (2c) are arranged flush, and the epoxy resin (3) extends to the inner hole of the shoulder (2c1).

4. The cable with improved structure according to claim 2 or 3, characterized in that: The axial length of the shoulder (2c1) is greater than the radial thickness of the sleeve (2c).

5. The cable with improved structure according to claim 1, characterized in that: An annular positioning step (2d) is formed between the outer wall of the protective sleeve (2c) and the outer wall of the rubber sleeve (2), and the positioning step (2d) is coaxially arranged with the rubber sleeve (2).

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