A CVPC power cable protection pipe connection protection component

Abstract

The utility model discloses a CVPC power cable protection tube connection protection assembly, including two sleeves, the tail ends of the two sleeves are arranged opposite to each other, a connecting sleeve is arranged between the two sleeves, and the tail ends of the two sleeves are respectively inserted at the two ends of the connecting sleeve; the connecting sleeve includes: two connecting parts, which are arranged at the two end portions of the connecting sleeve. The utility model can avoid high temperature damage by adopting the connecting assembly. During the connection process, there is no need to use welding, which avoids the damage of high temperature to the cable protection tube, thereby improving the service life of the pipeline. At the same time, a sealing part is provided on the outside of the connecting sleeve, and a sealing ring is provided in the sealing part, and the sealing ring is tightly fitted with the outer wall of the cable tube, which effectively prevents damage to the cable by water, gas, chemical corrosion, etc., and compared with the flange connection, there is no need to reprocess the cable protection tube to install the flange, and the connecting assembly is more convenient to disassemble and install.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, and in particular to a CVPC power cable protection tube connection protection component. Background Art

[0002] CPVC power cable protection tube is a material commonly used for laying and protecting cables in power systems. It has the advantages of high temperature resistance, corrosion resistance, flame retardancy, and good insulation performance. The connection protection component refers to the design of the CPVC power cable protection tube at the connection to ensure that the cable is not damaged by external forces during the laying process, and when the pipes are connected to the pipes or the pipes are connected to the cable joints, it can ensure sealing and waterproofing to prevent chemical corrosion or environmental factors from damaging the cables.

[0003] When the existing CPVC power cable protection tubes are butt-jointed, they are usually connected and fixed by welding, or flange seats are added to the ends of the protection tubes to butt-join and fix the cable protection tubes.

[0004] The high temperature generated during the welding process may cause a certain degree of damage to the cable protection tube, affecting its service life. The strength of the welded joint is relatively high, but it is easy to break or damage during disassembly, making maintenance more difficult. The flange connection will rust and wear, making maintenance more difficult. At the same time, the firmness of the flange connection is limited by the tightening force of the bolts, which is prone to loosening and water leakage.

[0005] Therefore, it is necessary to invent a CVPC power cable protection pipe connection protection component to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a CVPC power cable protection pipe connection protection component to solve the above-mentioned deficiencies in the technology.

[0007] In order to achieve the above object, the utility model provides the following technical solutions: a CVPC power cable protection tube connection protection assembly, comprising two sleeves, the tail ends of the two sleeves are arranged opposite to each other, a connecting sleeve is arranged between the two sleeves, and the tail ends of the two sleeves are respectively inserted at both ends of the connecting sleeve;

[0008] The connecting sleeve comprises:

[0009] Two connecting parts are arranged at both ends of the connecting sleeve, and the two connecting parts are respectively sleeved on the tail ends of the two sleeves;

[0010] The rubber sleeve is arranged between the two connecting parts, and the two ends of the rubber sleeve are fixedly connected to the inner sides of the two connecting parts. The rubber sleeve is a bamboo-shaped structure that can be bent and squeezed.

[0011] The main body of the sleeve is composed of two parts. An inner ring cylinder is arranged inside the sleeve, and an outer ring cylinder is arranged outside the sleeve.

[0012] As a preferred embodiment of the present invention, there is a gap between the inner ring tube and the outer ring tube, and a cavity is formed. The cavity is located at the front end of the sleeve. A cable tube is inserted into the front end cavity of the sleeve. The inner wall and outer wall of the cable tube are respectively in contact with the outer wall of the inner ring tube and the inner wall of the outer ring tube.

[0013] As a preferred embodiment of the present invention, the tail end connection between the inner ring tube and the outer ring tube is a solid sealing structure, the front end of the outer ring tube is fixedly installed with a sealing part, a sealing ring is arranged in the sealing part, and the sealing ring is tightly fitted with the outer wall of the cable tube.

[0014] As a preferred solution of the utility model, a plurality of threaded holes evenly distributed in a circular array are opened on the outside of the rear end of the sleeve, and a plurality of bolts evenly distributed in a circular array are installed on the connecting parts at both ends of the connecting sleeve. The connecting parts at both ends of the connecting sleeve are adapted to be connected with the threaded holes at the rear ends of the two sleeves through bolts.

[0015] As a preferred solution of the utility model, a protrusion is fixedly installed on the outside of the two connecting parts, and a protective shell is snap-fitted on the outside of the connecting sleeve and located between the two protrusions. The protective shell is made of metal and has an open structure. The opening part of the protective shell is connected by screws.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. By adopting this connection component, high temperature damage can be avoided. During the connection process, there is no need to use welding, which avoids high temperature damage to the cable protection tube, thereby increasing the service life of the pipeline. At the same time, a sealing part is provided on the outside of the connecting sleeve, and a sealing ring is provided in the sealing part. The sealing ring fits tightly with the outer wall of the cable tube, effectively preventing damage to the cable by water, gas, chemical corrosion, etc. Compared with the flange connection, there is no need to reprocess the cable protection tube to install the flange. At the same time, the connection component is more convenient to disassemble and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the overall structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 It is a cross-sectional view of the connecting sleeve of the utility model;

[0023] Figure 5 It is a cross-sectional view of the sleeve of the utility model.

[0024] Description of reference numerals:

[0025] 1. Sleeve; 11. Inner ring cylinder; 12. Outer ring cylinder; 13. Cavity; 14. Sealing part; 15. Threaded hole; 2. Connecting sleeve; 21. Connecting part; 22. Raised part; 23. Rubber sleeve; 24. Bolt; 3. Protective shell; 4. Cable tube. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 A CVPC power cable protection tube connection protection assembly shown includes two sleeves 1, and the sleeves 1 are used to connect and protect the cables to prevent the cables from being damaged by external forces during the laying process. The material of the sleeve 1 can be selected from high temperature resistant, corrosion resistant, and flame retardant CPVC materials to improve the performance of the cable protection tube. The tail ends of the two sleeves 1 are arranged relative to each other, and a connecting sleeve 2 is arranged between the two sleeves 1. The connecting sleeve 2 can achieve a firm connection between the sleeves 1 through the design of two connecting parts 21 and a rubber sleeve 23, while ensuring the sealing and waterproofing of the cable. In the manufacturing process of the connecting sleeve 2, injection molding or extrusion processes can be used to ensure the quality and performance of the connecting sleeve 2. The tail ends of the two sleeves 1 are respectively inserted at the two ends of the connecting sleeve 2;

[0028] The connecting sleeve 2 includes:

[0029] Two connecting parts 21 are provided at both ends of the connecting sleeve 2, and the two connecting parts 21 are respectively sleeved on the tail ends of the two sleeves 1;

[0030] The rubber sleeve 23 is arranged between the two connecting parts 21, and the two ends of the rubber sleeve 23 are fixedly connected to the inner sides of the two connecting parts 21. The rubber sleeve 23 is a bamboo-shaped structure that can be bent and squeezed. The sealing part 14 is tightly fitted with the outer wall of the cable tube 4 by setting a sealing ring to achieve waterproof and airproof functions. The sealing ring can be made of rubber or other materials with good sealing performance.

[0031] The main body of the sleeve 1 consists of two parts. An inner ring tube 11 is arranged inside the sleeve 1, and an outer ring tube 12 is arranged outside the sleeve 1. The end of the cable tube 4 is embedded and clamped for protection through a cavity 13 formed between the inner ring tube 11 and the outer ring tube 12.

[0032] Furthermore, in the above technical scheme, there is a gap between the inner ring tube 11 and the outer ring tube 12, and a cavity 13 is formed. The cavity 13 is located at the front end of the sleeve 1. A cable tube 4 is inserted into the front end cavity 13 of the sleeve 1. The inner wall and outer wall of the cable tube 4 are respectively in contact with the outer wall of the inner ring tube 11 and the inner wall of the outer ring tube 12.

[0033] Furthermore, in the above technical solution, the tail end connection between the inner ring tube 11 and the outer ring tube 12 is a solid sealing structure, and a sealing portion 14 is fixedly installed at the front end of the outer ring tube 12. A sealing ring is arranged in the sealing portion 14, and the sealing ring is tightly fitted to the outer wall of the cable tube 4.

[0034] Furthermore, in the above technical solution, a plurality of threaded holes 15 evenly distributed in a circular array are opened on the outside of the rear end of the sleeve 1, and a plurality of bolts 24 evenly distributed in a circular array are installed on the connecting parts 21 at both ends of the connecting sleeve 2. The connecting parts 21 at both ends of the connecting sleeve 2 are adapted to be connected with the threaded holes 15 at the rear ends of the two sleeves 1 through the bolts 24, and the connecting sleeve 2 and the sleeve 1 are connected and fixed together through the bolts 24 to prevent the two from being easily separated.

[0035] Furthermore, in the above technical solution, a protrusion 22 is fixedly installed on the outside of the two connecting parts 21, and the protrusion 22 is used to support the end of the connecting sleeve 2 to prevent the connecting sleeve 2 from directly contacting the ground, and then being easily affected by moisture and water. A protective shell 3 is provided on the outside of the connecting sleeve 2 and is snap-fitted between the two protrusions 22. The protective shell 3 is made of metal and has an open structure. The opening part of the protective shell 3 is connected by screws, and the rubber sleeve 23 is protected by the protective shell 3 to prevent the rubber sleeve 23 from being affected by moisture and heat, which would reduce its service life.

[0036] The CVPC power cable protection pipe connection protection assembly provided by the utility model has the following working process when in use:

[0037] A sleeve 1 is installed at each of the opposite ends of the two cable tubes 4, that is, the ends of the two cable tubes 4 are inserted into the corresponding cavity 13 of the sleeve 1. When the two sleeves 1 are connected to the two cable tubes 4, a connecting sleeve 2 is installed between the two sleeves 1. The cable is then inserted into one end of one cable tube 4, then passes through the interior of the inner ring tube 11 of the two sleeves 1 and the interior of the connecting sleeve 2, and passes out from the interior of the other cable tube 4. The bolts 24 of the connecting parts 21 at both ends of the connecting sleeve 2 are then connected to the threaded holes 15 at the rear ends of the two sleeves 1 to fix the connecting sleeve 2 to the two sleeves 1 together. After that, a protective shell 3 is installed between the two raised parts 22 of the connecting sleeve 2, and the screws are tightened at the opening of the protective shell 3 to fix it, so as to fix the protective shell 3 to the outside of the connecting sleeve 2.

[0038] When the sleeve 1, the connecting sleeve 2, the protective shell 3 and the cable tube 4 are connected and installed together, the connection between the front ends of the two sleeves 1 and the corresponding cable tubes 4 is filled with sealant, the connection between the two ends of the protective shell 3 and the two ends of the connecting sleeve 2 is filled with sealant, and the connection between the two ends of the connecting sleeve 2 and the two rear ends of the two sleeves 1 is filled with sealant, so as to complete the installation of the cable protection tube connection protection component, and improve the sealing between the connection protection components to prevent water from entering the connection of the cable tube 4. During subsequent disassembly and maintenance, the sealant at the connection between the sleeve 1, the connecting sleeve 2, the protective shell 3 and the cable tube 4 is melted by heating, or the sealant is directly removed with tools, so as to facilitate the subsequent rapid disassembly of the connection protection component.

[0039] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CVPC power cable protection pipe connection protection assembly, comprising two sleeves (1), characterized in that: The tail ends of the two sleeves (1) are arranged opposite to each other, a connecting sleeve (2) is arranged between the two sleeves (1), and the tail ends of the two sleeves (1) are respectively inserted into the two ends of the connecting sleeve (2); The connecting sleeve (2) comprises: Two connecting parts (21) are arranged at both ends of the connecting sleeve (2), and the two connecting parts (21) are respectively sleeved on the tail ends of the two sleeves (1); A rubber sleeve (23) is arranged between the two connecting parts (21), and two ends of the rubber sleeve (23) are fixedly connected to the inner sides of the two connecting parts (21). The rubber sleeve (23) is a bamboo-shaped structure that can be bent and squeezed; The main body of the sleeve (1) is composed of two parts. An inner ring cylinder (11) is arranged inside the sleeve (1), and an outer ring cylinder (12) is arranged outside the sleeve (1).

2. A CVPC power cable protection pipe connection protection assembly according to claim 1, characterized in that: There is a gap between the inner ring tube (11) and the outer ring tube (12), and a cavity (13) is formed. The cavity (13) is located at the front end of the sleeve (1). A cable tube (4) is inserted into the front end cavity (13) of the sleeve (1). The inner wall and outer wall of the cable tube (4) are respectively in contact with the outer wall of the inner ring tube (11) and the inner wall of the outer ring tube (12).

3. A CVPC power cable protection pipe connection protection assembly according to claim 2, characterized in that: The tail end connection of the inner ring tube (11) and the outer ring tube (12) is a solid sealing structure, and a sealing part (14) is fixedly installed at the front end of the outer ring tube (12). A sealing ring is arranged in the sealing part (14), and the sealing ring is tightly fitted with the outer wall of the cable tube (4).

4. A CVPC power cable protection pipe connection protection assembly according to claim 1, characterized in that: The rear end of the sleeve (1) is provided with a plurality of threaded holes (15) evenly distributed in an annular array, and the connecting parts (21) at both ends of the connecting sleeve (2) are installed with a plurality of bolts (24) evenly distributed in an annular array, and the connecting parts (21) at both ends of the connecting sleeve (2) are adaptively connected to the threaded holes (15) at the rear ends of the two sleeves (1) through the bolts (24).

5. A CVPC power cable protection pipe connection protection assembly according to claim 1, characterized in that: A protrusion (22) is fixedly mounted on the outside of the two connecting parts (21), and a protective shell (3) is snap-fitted and sleeved on the outside of the connecting sleeve (2) and located between the two protrusions (22). The protective shell (3) is made of metal and is an open structure. The opening of the protective shell (3) is connected by screws.

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