High-strength power cable composite pipe

Abstract

The utility model relates to the technical field of power cable composite pipes, in particular to a high-strength power cable composite pipe which comprises a composite pipe body and a fixing ring, annular grooves used for being connected with the composite pipe body are formed in the two ends of the fixing ring respectively, and first annular blocks are fixedly connected to the inner walls of the two ends of the fixing ring respectively. The inner surface of the first annular block is arranged to be an arc face, one end of the first annular block is fixedly connected with a second annular block, and the surface of the second annular block is attached to the inner wall of the composite pipe body. An opening communicated with the annular groove is formed in the fixing ring, and an elastic clamping sleeve is arranged on the outer side of the fixing ring. According to the power cable composite pipe, the cable can move close to the smooth arc surface formed by the second annular block and the first annular block, the resistance generated when the cable penetrates through the joint of the composite pipe body in the cable installation process can be effectively reduced, installation of the cable is further facilitated, and the practicability of the power cable composite pipe is good.

Description

Technical Field

[0001] The utility model relates to the technical field of power cable composite pipes, in particular to a high-strength power cable composite pipe. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to power cable composite pipes is also constantly improving. Cables are usually composed of several or several groups of wires. When the cables are installed, high-strength power cable composite pipes will be installed on the outside to protect the cables.

[0003] When the currently used high-strength power cable composite pipes are connected, steps with a certain height difference are easily generated at the connection points of the power cable composite pipes. When the cables are subsequently installed, the steps pose a great resistance to the installation of the cables, which is not conducive to the installation of the cables, and the practicality of the power cable composite pipes is poor. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: when the currently used high-strength power cable composite pipe is connected, a step with a certain height difference is easily generated at the connection of the power cable composite pipe. When the subsequent cable is installed, the step poses a large resistance to the installation of the cable, which is not conducive to the installation of the cable. The practicability of the power cable composite pipe is poor, and a high-strength power cable composite pipe is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-strength power cable composite pipe, comprising a composite pipe body and a fixing ring, wherein both ends of the fixing ring are provided with annular grooves for connecting the composite pipe body, both ends of the inner wall of the fixing ring are fixedly connected with a first annular block, the inner surface of the first annular block is set as an arc surface, one end of the first annular block is fixedly connected with a second annular block, and the surface of the second annular block is in contact with the inner wall of the composite pipe body;

[0007] The fixing ring is provided with an opening connected to the annular groove, an elastic clamping sleeve is provided on the outer side of the fixing ring, a limiting assembly is provided on the elastic clamping sleeve, and the limiting assembly includes a plurality of first clamping blocks fixedly mounted on the elastic clamping sleeve, and each of the first clamping blocks is clamped with the composite pipe body.

[0008] Preferably, the elastic sleeve is provided with two slots, each of the slots is fixedly connected with a second clamping block, and the second clamping block is clamped with the fixing ring.

[0009] Preferably, both ends of the elastic sleeve are fixedly connected with arc-shaped elastic sheets, and one end surface of each of the arc-shaped elastic sheets is in contact with the surface of the fixing ring.

[0010] Preferably, an annular rubber pad is provided on the inner wall of one side of the annular groove, and the annular rubber pad is in contact with the inner wall of the composite pipe body.

[0011] Preferably, a sealing ring is fixedly mounted on an inner wall of one side of the annular groove, and a surface of the sealing ring is in contact with a surface of the composite pipe body.

[0012] Preferably, a plastic lining layer is fixedly mounted on the inner wall of the composite pipe body, and the cross section of the plastic lining layer is arranged in a circular ring shape.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The second annular block and the first annular block are integrally formed, and the inner surfaces of the second annular block and the first annular block constitute a smooth arc surface with a certain slope, and the connection between the second annular block and the inner wall of the composite pipe body is a relatively smooth arc surface. When installing the cable, the cable will move along the smooth and relatively smooth arc surface formed by the second annular block and the first annular block, which can effectively reduce the resistance of the cable when passing through the connection of the composite pipe body during installation, thereby facilitating the installation of the cable, and the practicality of the power cable composite pipe is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the partial structure of a high-strength power cable composite pipe proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a high-strength power cable composite pipe proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a high-strength power cable composite pipe proposed by the utility model;

[0018] Figure 4 for Figure 1 A partial enlarged view of middle A.

[0019] In the figure: 1 composite pipe body, 2 plastic lining layer, 3 fixing ring, 4 first clamping block, 5 elastic clamping sleeve, 6 second annular block, 7 annular groove, 8 arc-shaped elastic sheet, 9 second clamping block, 10 slot, 11 first annular block, 12 sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0022] Reference Figure 1-Figure 4 A high-strength power cable composite pipe comprises a composite pipe body 1 and a fixing ring 3. Both ends of the fixing ring 3 are provided with annular grooves 7 for connecting the composite pipe body 1. The inner walls of both ends of the fixing ring 3 are fixedly connected with first annular blocks 11. The inner surface of the first annular block 11 is set as an arc surface. One end of the first annular block 11 is fixedly connected with a second annular block 6. The surface of the second annular block 6 is fitted with the inner wall of the composite pipe body 1. An opening connected with the annular groove 7 is opened on the fixing ring 3. An elastic clamping sleeve 5 is arranged on the outer side of the fixing ring 3. A limiting assembly is arranged on the elastic clamping sleeve 5. The limiting assembly comprises a plurality of first clamping blocks 4 fixedly mounted on the elastic clamping sleeve 5. Each first clamping block 4 is clamped with the composite pipe body 1.

[0023] Two slots 10 are provided on the elastic ferrule 5, and a second clamping block 9 is fixedly connected in each slot 10. The second clamping block 9 is clamped with the fixing ring 3. Both ends of the elastic ferrule 5 are fixedly connected with arc-shaped elastic sheets 8. One end surface of each arc-shaped elastic sheet 8 is in contact with the surface of the fixing ring 3. The arc-shaped elastic sheet 8 is in contact with the outer surface of the fixing ring 3, which can effectively prevent the two ends of the fixing ring 3 from being deformed at will after being touched. The elastic elastic ferrule 5 is sleeved on the outside of the fixing ring 3, and each first clamping block 4 is clamped with the clamping groove provided on the outer surface of the composite pipe body 1, and the second clamping block 9 is clamped with the clamping groove provided on the outer surface of the fixing ring 3. The composite pipe body 1 and the fixing ring 3 can be firmly connected together, so that the strength of the composite pipe body 1 when connected to the fixing ring 3 is large enough, which is conducive to the splicing of multiple composite pipe bodies 1. After the multiple composite pipe bodies 1 and the multiple fixing rings 3 are spliced, a high-strength power cable composite pipe can be formed.

[0024] An annular rubber pad is provided on the inner wall of one side of the annular groove 7, and the annular rubber pad is fitted with the inner wall of the composite pipe body 1. A sealing ring 12 is fixedly installed on the inner wall of one side of the annular groove 7, and the surface of the sealing ring 12 is fitted with the surface of the composite pipe body 1. The annular rubber pad is tightly attached to the inner wall of the composite pipe body 1, and the sealing ring 12 is tightly attached to the outer surface of the composite pipe body 1, which can effectively improve the sealing performance when the composite pipe body 1 is connected to the fixing ring 3. A plastic lining layer 2 is fixedly installed on the inner wall of the composite pipe body 1. The cross-section of the plastic lining layer 2 is arranged in a circular ring shape, and the plastic lining layer 2 has a protective effect on the inner wall of the composite pipe body 1. When installing the cable, the plastic lining layer 2 can effectively avoid damage to the inner wall of the composite pipe body 1 due to the dragging of the cable, thereby helping to improve the service life of the composite pipe body 1.

[0025] In the utility model, when in use, first insert one end of the composite pipe body 1 into the annular groove 7 of the fixing ring 3 until the end face of the composite pipe body 1 is in close contact with the inner wall of the annular groove 7, at which time the annular rubber pad is in close contact with the inner wall of the composite pipe body 1, the sealing ring 12 is in close contact with the outer surface of the composite pipe body 1, and during the process of inserting the composite pipe body 1 into the annular groove 7, the surface of the second annular block 6 will be in close contact with the inner wall of the composite pipe body 1, the inner surface of the second annular block 6 is set to have a certain slope, the second annular block 6 and the first annular block 11 are integrally formed, and the inner surfaces of the second annular block 6 and the first annular block 11 constitute a smooth arc surface with a certain slope, The connection between the second annular block 6 and the inner wall of the composite pipe body 1 is a relatively smooth arc surface. Then, the elastic sleeve 5 is sleeved on the outside of the fixing ring 3, and each first clamping block 4 is clamped with the clamping groove opened on the outer surface of the composite pipe body 1, and the second clamping block 9 is clamped with the clamping groove opened on the outer surface of the fixing ring 3. Similarly, another composite pipe body 1 can be connected to the other end of the fixing ring 3. When installing the cable, the cable will move along the smooth arc surface formed by the second annular block 6 and the first annular block 11, which can effectively reduce the resistance when passing through the connection of the composite pipe body 1 during the cable installation process, thereby facilitating the installation of the cable, and the practicality of the power cable composite pipe is good.

[0026] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength power cable composite pipe, comprising a composite pipe body (1) and a fixing ring (3), characterized in that: Both ends of the fixing ring (3) are provided with annular grooves (7) for connecting to the composite pipe body (1); the inner walls of both ends of the fixing ring (3) are fixedly connected to first annular blocks (11); the inner surface of the first annular block (11) is arranged as an arc surface; one end of the first annular block (11) is fixedly connected to a second annular block (6); the surface of the second annular block (6) is in contact with the inner wall of the composite pipe body (1); The fixing ring (3) is provided with an opening which is in communication with the annular groove (7); an elastic clamping sleeve (5) is provided on the outer side of the fixing ring (3); a limit assembly is provided on the elastic clamping sleeve (5); the limit assembly comprises a plurality of first clamping blocks (4) fixedly mounted on the elastic clamping sleeve (5); each of the first clamping blocks (4) is clamped with the composite pipe body (1).

2. A high-strength power cable composite pipe according to claim 1, characterized in that The elastic sleeve (5) is provided with two slots (10), each of the slots (10) is fixedly connected with a second clamping block (9), and the second clamping block (9) is clamped with the fixing ring (3).

3. The high-strength power cable composite tube according to claim 1, characterized in that: Both ends of the elastic sleeve (5) are fixedly connected with arc-shaped elastic sheets (8), and one end surface of each arc-shaped elastic sheet (8) is in contact with the surface of the fixing ring (3).

4. The high-strength power cable composite tube according to claim 1, characterized in that: An annular rubber pad is provided on the inner wall of one side of the annular groove (7), and the annular rubber pad is in contact with the inner wall of the composite pipe body (1).

5. The high-strength power cable composite tube according to claim 1, characterized in that: A sealing ring (12) is fixedly mounted on the inner wall of one side of the annular groove (7), and the surface of the sealing ring (12) is in contact with the surface of the composite pipe body (1).

6. The high-strength power cable composite tube according to claim 1, characterized in that: A plastic lining layer (2) is fixedly mounted on the inner wall of the composite pipe body (1), and the cross section of the plastic lining layer (2) is arranged in a circular ring shape.

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