Secondary cable protection pipe connecting piece

Abstract

The utility model discloses a secondary cable protection pipe connecting piece, and relates to the cable laying field, the secondary cable protection pipe connecting piece comprises a pipe group, the pipe group is a double-wall tubular structure, the pipe group comprises an inner pipe body and an outer pipe body, the inner pipe body and the outer pipe body are provided with inner grooves, and the inner grooves are internally provided with sealing assemblies; a secondary cable protection pipe is inserted and matched between the inner pipe body and the outer pipe body at the two ends of the pipe group, and the secondary cable protection pipe is in sealing fit with the sealing assembly; pipe hoops are arranged at the two ends of the outer pipe body. The connecting structure has the advantages that firmness is guaranteed, meanwhile, connection and disassembly are convenient, sealing performance is good, the professional technical requirement for constructors is low, and meanwhile the phenomena that due to traditional threading and welding processes, the stress performance of connecting points is weak, and the connecting points are prone to breakage, corrosion and water inflow are avoided.

Description

Technical Field

[0001] The utility model relates to the field of cable laying, in particular to a secondary cable protection pipe connector. Background Art

[0002] In the field of airport engineering construction, in the professional engineering of navigation lighting, most of the secondary cables from the light box to the lamps are laid underground through pipes. In actual construction, multiple hot-dip galvanized steel pipes need to be connected together to meet the length requirements. Most of the traditional solutions use the hot-dip galvanized steel pipe threading and pipe clamp connection process, which leads to the following two defects. First, there is no unified standard for the threading process. The accuracy depends on the accuracy of the threading machine and the experience of the processing personnel. The process is relatively cumbersome and the prefabrication time is long. The galvanized steel pipe threading is prone to rust, which will reduce the sealing and waterproof performance of the hot-dip galvanized steel pipe connection, causing the steel pipe to break or water ingress. In winter, the water ingress freezes and freezes the cables in the pipe in low temperature weather. Second, the construction workers' installation process is not of high construction standards. In the case of insufficient threaded pipe clamp processing parts, butt welding construction may occur. Burrs are prone to appear on the inner wall of the butt welding, which scratches the cables and cannot ensure the sealing. In addition, the process involves hot work, which will cause the generation of dangerous sources during the processing, release toxic and harmful gases, damage human health, and pollute the environment.

[0003] For this purpose, it is necessary to design a secondary cable protection pipe connector that can be easily connected, disassembled, firm, and has excellent sealing properties, so that the connection of hot-dip galvanized steel pipes during construction is simple and quick, the construction process and quality are easy to control, and energy saving and environmental protection, avoiding the generation of dangerous sources, improving work efficiency, and reducing labor intensity during use have become urgent problems that people in this industry face and need to solve. Utility Model Content

[0004] The utility model aims to provide a secondary cable protection tube connector, which solves the problem mentioned in the background technology that a secondary cable protection tube connector which can be easily connected and disassembled, is firm and has excellent sealing performance needs to be designed.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model discloses a secondary cable protection tube connector, comprising a tube group, wherein the tube group is a double-wall tubular structure, the tube group comprises an inner tube body and an outer tube body, the inner tube body and the outer tube body are provided with inner grooves, and a sealing component is provided in the inner groove.

[0007] A secondary cable protection tube is inserted and matched between the inner tube body and the outer tube body at both ends of the tube group, and the secondary cable protection tube is sealed and matched with the sealing assembly.

[0008] Both ends of the outer tube body are provided with tube hoops.

[0009] Furthermore, both ends of the outer tube body are provided with elastically deformable serrated sockets, and the serrated sockets are tightly matched with the pipe clamp.

[0010] Furthermore, an outer groove is provided on the outer wall of the serrated socket, and the pipe clamp is embedded and matched with the outer groove.

[0011] Furthermore, the serrated socket includes a plurality of serrated pieces arranged in a ring-shaped manner, the serrated pieces are integrally formed with the outer tube body, and the outer wall of the serrated piece is configured as a smooth arc-shaped structure.

[0012] Furthermore, the tube group includes a connecting baffle, which is a plate-like structure in the form of a circular ring, wherein the outer edge of the connecting baffle is fixedly connected to the outer wall of the inner tube body, and the inner edge of the connecting baffle is fixedly connected to the inner wall of the outer tube body.

[0013] Furthermore, the sealing assembly includes a first waterproof sealing ring and a second waterproof sealing ring.

[0014] The first waterproof sealing ring is sealed in a first inner groove, and the first inner groove is arranged on the outer wall of the inner tube body.

[0015] The second waterproof sealing ring is sealed in the second inner groove, and the second inner groove is arranged on the inner wall of the outer tube body.

[0016] The second inner groove corresponds to the first inner groove in position.

[0017] The inner tube wall of the secondary cable protection tube is sealed with the first waterproof sealing ring, and the outer tube wall of the secondary cable protection tube is sealed with the second waterproof sealing ring.

[0018] Furthermore, the sealing assembly also includes a third waterproof sealing ring, which is sealingly arranged in a third inner groove, and the third inner groove is arranged on the outer wall of the inner tube body and the inner wall of the outer tube body on both sides of the connecting partition; the pipe mouth of the secondary cable protection tube is tightly against the third waterproof sealing ring.

[0019] Furthermore, the third waterproof sealing ring is a circular ring structure.

[0020] Furthermore, the inner walls of the two ends of the inner tube body are configured as smooth arc-shaped structures.

[0021] Compared with the prior art, the beneficial technical effects of the utility model are:

[0022] The utility model discloses a secondary cable protection pipe connector, which has the advantages of being easy to connect and disassemble while ensuring firmness, having excellent sealing performance, and having low professional and technical requirements for construction personnel, while avoiding the phenomenon that the connection point is weak in stress performance, easy to break, easy to rust, and easy to get into water due to traditional threading and welding processes. In addition, it also has the advantages of being easy and quick to connect hot-dip galvanized steel pipes during construction, easy to control construction technology and quality, energy-saving and environmentally friendly during use, avoiding the generation of dangerous sources, improving work efficiency, and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a front view of a secondary cable protection tube connector of the utility model;

[0025] Figure 2 This is the main structural diagram of the waterproof rubber ring of the utility model;

[0026] Figure 3 This is a cross-sectional view of a secondary cable protection tube connector of the utility model;

[0027] Figure 4 This is a diagram showing the effect of using the waterproof rubber ring of the utility model;

[0028] Figure 5 This is an appearance diagram of a secondary cable protection tube connector of the utility model.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. inner groove; 1-1. first inner groove; 1-2. second inner groove; 1-3. third inner groove; 2. outer groove; 3. serrated socket; 3-1. serrated plate; 4. waterproof rubber ring; 4-1. first waterproof sealing ring; 4-2. second waterproof sealing ring; 4-3. third waterproof sealing ring; 5. pipe group; 5-1. inner pipe body; 5-2. outer pipe body; 5-3. connecting partition; 6. pipe clamp; 7. secondary cable protection pipe. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1 , Figure 3 and Figure 5As shown, the present embodiment discloses a secondary cable protection tube connector, including a tube body 5, including a tube group 5, the tube group 5 is a double-wall tubular structure, the tube group 5 includes an inner tube body 5-1 and an outer tube body 5-2, the inner tube body 5-1 and the outer tube body 5-2 are provided with an inner groove 1, and a sealing component 4 is provided in the inner groove 1; a secondary cable protection tube 7 is plugged and matched between the inner tube body 5-1 and the outer tube body 5-2 at both ends of the tube group 5, and the secondary cable protection tube 7 is sealed with the sealing component 4; both ends of the outer tube body 5-2 are provided with a pipe clamp 6.

[0032] The two ends of the outer tube body 5-2 are provided with elastically deformable serrated sockets 3, which are tightly fitted with the pipe clamp 6. An outer groove 2 is provided on the outer wall of the serrated socket 3, and the pipe clamp 6 is embedded in the outer groove 2. The serrated socket 3 includes a plurality of serrated pieces 3-1 arranged in an annular manner, and the serrated pieces 3-1 are integrally formed with the outer tube body 5-2, and the outer wall of the serrated piece 3-1 is set as a smooth arc structure.

[0033] like Figure 3 As shown, the tube group 5 includes a connecting baffle 5-3, which is a plate-like structure in the form of a circular ring. The outer edge of the connecting baffle 5-3 is fixedly connected to the outer wall of the inner tube body 5-1, and the inner edge of the connecting baffle 5-3 is fixedly connected to the inner wall of the outer tube body 5-2.

[0034] like Figure 2 and Figure 3 As shown, the sealing assembly 4 includes a first waterproof sealing ring 4-1 and a second waterproof sealing ring 4-2; the first waterproof sealing ring 4-1 is sealed and arranged in the first inner groove 1-1, and the first inner groove 1-1 is arranged on the outer wall of the inner tube body 5-1; the second waterproof sealing ring 4-2 is sealed and arranged in the second inner groove 1-2, and the second inner groove 1-2 is arranged on the inner wall of the outer tube body 5-2. The second inner groove 1-2 corresponds to the first inner groove 1-1.

[0035] The inner tube wall of the secondary cable protection tube 7 is sealed with the first waterproof seal ring 4-1, and the outer tube wall of the secondary cable protection tube 7 is sealed with the second waterproof seal ring 4-2. The double-layer waterproof rubber ring can ensure good sealing between the secondary cable protection tube 7 and the connector.

[0036] The sealing assembly 4 also includes a third waterproof sealing ring 4-3, which is sealed in the third inner groove 1-3. The third inner groove 1-3 is arranged on the outer wall of the inner tube body 5-1 and the inner wall of the outer tube body 5-2 connecting the two sides of the partition 5-3; the pipe mouth of the secondary cable protection tube 7 is tightly against the third waterproof sealing ring 4-3.

[0037] In this embodiment, the third waterproof sealing ring 4-3 is a circular ring structure. The inner walls of the two ports of the inner tube body 5-1 are set as smooth arc structures. The secondary cable protection tube 7 is a hot-dip galvanized steel tube.

[0038] like Figure 3 and Figure 4 As shown, in this embodiment, the cross-sections of the first inner groove 1-1 and the second inner groove 1-2 are both rectangular. The inner edge of the first waterproof sealing ring 4-1 is in sealing contact with the first inner groove 1-1, and its cross-section is rectangular; the outer edge of the first waterproof sealing ring 4-1 is in sealing contact with the secondary cable protection tube 7, and its cross-section is arc-shaped. The inner edge of the second waterproof sealing ring 4-2 is in sealing contact with the secondary cable protection tube 7, and its cross-section is arc-shaped; the outer edge of the second waterproof sealing ring 4-2 is in sealing contact with the second inner groove 1-2, and its cross-section is rectangular.

[0039] like Figures 1 to 5 As shown, the features and working principle of the utility model are as follows:

[0040] The tube group 5 of the utility model is made of stainless steel and is in a double-walled form. Inner grooves 1 are processed at symmetrical positions on the outer wall of the inner tube body 5-1 and the inner wall of the outer tube body 5-2 for installing the sealing assembly 4. The socket of the connector is provided with a serrated socket 3 polished into a smooth arc shape, which is convenient for socketing the secondary cable protection tube 7 and the subsequent cable pipe laying. The serrated socket 3 includes a plurality of serrated pieces 3-1 arranged in a ring-shaped interval. At the same time, an outer groove 2 is processed at the middle end of the outer wall of the serrated socket 3 for fixing the adjustable pipe clamp 6. The diameter of the connector depends on the diameter of the secondary cable protection tube 7 to be socketed.

[0041] During processing and production, the third waterproof sealing ring 4-3 is sealed in the third inner groove 1-3, the first waterproof sealing ring 4-1 is sealed in the first inner groove 1-1, and the second waterproof sealing ring 4-2 is sealed in the second inner groove 1-2.

[0042] During on-site construction and assembly, the secondary cable protection tube 7 is inserted from the gap between the serrated socket 3 and the inner tube body 5-1, and inserted between all the first waterproof sealing rings 4-1 and the second waterproof sealing rings 4-2 inside, until the end of the secondary cable protection tube 7 is tightly against the third waterproof sealing ring 4-3, and the shrink hose clamp 6 will press the serrated socket 3 so that the secondary cable protection tube 7 is sealed and locked.

[0043] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A secondary cable protection tube connector, characterized in that: The invention comprises a tube group (5), wherein the tube group (5) is a double-walled tubular structure, wherein the tube group (5) comprises an inner tube body (5-1) and an outer tube body (5-2), wherein the inner tube body (5-1) and the outer tube body (5-2) are provided with inner grooves (1), and wherein a sealing component (4) is provided in the inner grooves (1); A secondary cable protection tube (7) is inserted and matched between the inner tube body (5-1) and the outer tube body (5-2) at both ends of the tube group (5), and the secondary cable protection tube (7) is sealed and matched with the sealing assembly (4); Both ends of the outer tube body (5-2) are provided with tube hoops (6).

2. The secondary cable protection tube connector according to claim 1, characterized in that: Both ends of the outer tube body (5-2) are provided with elastically deformable serrated sockets (3), and the serrated sockets (3) are tightly matched with the pipe clamp (6).

3. The secondary cable protection tube connector according to claim 2, characterized in that: An outer groove (2) is provided on the outer wall of the serrated socket (3), and the pipe clamp (6) is embedded and matched with the outer groove (2).

4. The secondary cable protection tube connector according to claim 3, characterized in that: The serrated socket (3) comprises a plurality of serrated pieces (3-1) arranged in an annular manner and spaced apart from each other. The serrated pieces (3-1) are integrally formed with the outer tube body (5-2), and the outer wall of the serrated piece (3-1) is configured as a smooth arc-shaped structure.

5. The secondary cable protection tube connector according to claim 1, characterized in that: The tube group (5) comprises a connecting baffle (5-3), which is a plate-shaped structure in the form of a circular ring. The outer edge of the connecting baffle (5-3) is fixedly connected to the outer wall of the inner tube body (5-1), and the inner edge of the connecting baffle (5-3) is fixedly connected to the inner wall of the outer tube body (5-2).

6. The secondary cable protection tube connector according to claim 5, characterized in that: The sealing assembly (4) comprises a first waterproof sealing ring (4-1) and a second waterproof sealing ring (4-2); The first waterproof sealing ring (4-1) is sealingly arranged in the first inner groove (1-1), and the first inner groove (1-1) is arranged on the outer wall of the inner tube body (5-1); The second waterproof sealing ring (4-2) is sealingly arranged in the second inner groove (1-2), and the second inner groove (1-2) is arranged on the inner wall of the outer tube body (5-2); The second inner groove (1-2) corresponds to the first inner groove (1-1) in position; The inner tube wall of the secondary cable protection tube (7) is in sealing cooperation with the first waterproof sealing ring (4-1), and the outer tube wall of the secondary cable protection tube (7) is in sealing cooperation with the second waterproof sealing ring (4-2).

7. The secondary cable protection tube connector according to claim 6, characterized in that: The sealing assembly (4) further comprises a third waterproof sealing ring (4-3), wherein the third waterproof sealing ring (4-3) is sealingly arranged in a third inner groove (1-3), and the third inner groove (1-3) is arranged on the outer wall of the inner tube body (5-1) and the inner wall of the outer tube body (5-2) on both sides of the connecting partition (5-3); The pipe opening of the secondary cable protection pipe (7) is tightly pressed against the third waterproof sealing ring (4-3).

8. The secondary cable protection tube connector according to claim 7, characterized in that: The third waterproof sealing ring (4-3) is a circular ring structure.

9. The secondary cable protection tube connector according to claim 1, characterized in that: The inner walls of the two ends of the inner tube body (5-1) are arranged to be smooth arc-shaped structures.

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