Flexible connection structure of PE cable protection pipe

Abstract

The utility model discloses a flexible connection structure of a PE cable protection pipe, which comprises a connection pipe main body, a fixed flange, a telescopic pipe, a double-end threaded rod and a fastening nut, the surface of the connection pipe main body is fixedly sleeved with the fixed flange at the rear end, the surface of the connection pipe main body is movably sleeved with the telescopic pipe, and the double-end threaded rod is sleeved with the fastening nut. A double-end threaded rod is inserted between the telescopic pipe and the fixing flange in a penetrating mode, and fastening nuts are arranged on the surface, close to the two ends, of the double-end threaded rod in a sleeving mode. According to the flexible connection structure of the PE cable protection pipe, the fastening nuts in front of and behind the second fixing flange are rotated, then the telescopic pipe is moved according to needs, when the telescopic pipe moves to a required position, the telescopic pipe is positioned by using the fastening nuts, and the overall length of the flexible connector is changed, so that the flexible connection structure is convenient to use. Therefore, the two cable protection pipes can be connected together by using the changed flexible connector, and the connection of the two cable protection pipes can be completed without replacing the flexible connector.

Description

Technical Field

[0001] The utility model relates to the field of cable protection pipes, and particularly relates to a flexible connection structure for a PE cable protection pipe. Background Technique

[0002] The cable protection pipe is also known as cable pipe, power cable pipe, cement cable pipe, power cable duct, power cable protection pipe, etc. The cable protection pipe is mainly installed in the section where the communication cable crosses the power line to prevent the power line from breaking and causing a short - circuit accident, causing the communication cable and the steel wire rope to be electrified, so as to protect the cable, switch, circuit board, and even the whole machine from being burned out, and also play a certain role in isolating the magnetic field interference of the power line.

[0003] When the cable protection pipe is in use, multiple pipe bodies need to be connected together, so a flexible pipe connector is required. However, when the flexible pipe connector is in use, its overall length is fixed. When the distance between two pipe bodies exceeds the length of the flexible connector, the connection of the two pipe bodies cannot be completed, and a suitable connector needs to be selected again, which is rather troublesome and reduces the practicability of the flexible pipe connector. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a flexible connection structure for a PE cable protection pipe, which can effectively solve the problems in the background technique.

[0005] To achieve the above - mentioned purpose, the technical solution adopted by the utility model is as follows:

[0006] A flexible connection structure for a PE cable protection pipe, comprising a connection pipe body, a first fixed flange, a telescopic pipe, a double - headed threaded rod, and fastening nuts. A first fixed flange is fixedly sleeved on the surface of the connection pipe body at the rear end. A telescopic pipe is movably sleeved on the surface of the connection pipe body. A double - headed threaded rod is inserted between the telescopic pipe and the first fixed flange, and fastening nuts are sleeved on the surface of the double - headed threaded rod near both ends.

[0007] Preferably, a stop ring is fixedly sleeved on the surface of the connection pipe body at the front end. A clamping strip is fixedly installed on the rear surface of the stop ring. A limiting ring is fixedly installed on the rear surface of the clamping strip, and the number of the clamping strips is four.

[0008] Preferably, a second fixed flange is fixedly installed on the front end face of the telescopic pipe. A clamping ring is fixedly installed on the rear end face of the telescopic pipe. A clamping groove is formed on the inner surface of the clamping ring, and the number of the clamping grooves is four. The clamping strips are embedded in the clamping grooves.

[0009] Preferably, the inner diameter of the clamping ring is equal to the inner diameter of the stop ring, the outer diameter of the clamping ring is greater than the outer diameter of the stop ring, and the inner diameter and outer diameter of the stop ring are the same as those of the limiting ring.

[0010] Preferably, the inner diameter of the telescopic pipe is smaller than the inner diameter of the snap ring, the outer diameter of the second fixing flange is larger than the outer diameter of the telescopic pipe, the inner diameter of the second fixing flange is smaller than the inner diameter of the telescopic pipe, and the inner diameter of the second fixing flange is the same as the inner diameter of the connecting pipe body.

[0011] Preferably, the outer diameters of the first fixing flange and the second fixing flange are the same, the number of the double-headed threaded rods is four, and the number of the fastening nuts is two.

[0012] Preferably, the two fastening nuts at one end of the double-headed threaded rod are respectively located in front of and behind the first fixing flange, and the two fastening nuts at the other end of the double-headed threaded rod are respectively located in front of and behind the second fixing flange.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, by setting the connection pipe body, the telescopic pipe, the double-headed threaded rod and the fastening nut to cooperate with each other, when the overall length of the flexible connector needs to be adjusted, rotate the fastening nuts in front of and behind the second fixing flange, and then move the telescopic pipe as needed. When the telescopic pipe moves to the required position, use the fastening nut to position the telescopic pipe. The overall length of the flexible connector changes, so that the two cable protection pipes can be connected together by using the changed flexible connector, and there is no need to replace the flexible connector to complete the connection of the two cable protection pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structure diagram of a flexible connection structure of a PE cable protection pipe of the utility model;

[0016] Figure 2 is the partial disassembly schematic diagram of a flexible connection structure of a PE cable protection pipe of the utility model;

[0017] Figure 3 is the telescopic pipe structure diagram of a flexible connection structure of a PE cable protection pipe of the utility model.

[0018] In the figure: 1, connection pipe body; 101, stop ring; 102, clamping strip; 103, limiting ring; 2, first fixing flange; 3, telescopic pipe; 301, second fixing flange; 302, snap ring; 303, card slot; 4, double-headed threaded rod; 5, fastening nut. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the technical means, creative features, achieving purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with the specific embodiments.

[0020] As shown Figures 1-3 in the figure, a flexible connection structure of a PE cable protection pipe includes a connecting pipe body 1, a first fixed flange 2, a telescopic pipe 3, a double-headed threaded rod 4 and a fastening nut 5. A first fixed flange 2 is fixedly sleeved on the surface of the connecting pipe body 1 at the rear end. A telescopic pipe 3 is movably sleeved on the surface of the connecting pipe body 1. A double-headed threaded rod 4 is inserted between the telescopic pipe 3 and the first fixed flange 2. Fastening nuts 5 are sleeved on the surface of the double-headed threaded rod 4 near both ends.

[0021] A stop ring 101 is fixedly sleeved on the surface of the connecting pipe body 1 at the front end. A clamping strip 102 is fixedly installed on the rear surface of the stop ring 101. A limiting ring 103 is fixedly installed on the rear surface of the clamping strip 102. The number of the clamping strips 102 is four. The limiting ring 103 and the stop ring 101 can prevent the telescopic pipe 3 from detaching from the connecting pipe body 1. A second fixed flange 301 is fixedly installed on the front end face of the telescopic pipe 3. A clamping ring 302 is fixedly installed on the rear end face of the telescopic pipe 3. A clamping groove 303 is formed on the inner surface of the clamping ring 302. The number of the clamping grooves 303 is four. The clamping strips 102 are embedded in the clamping grooves 303. The cooperation between the clamping grooves 303 and the clamping strips 102 can assist the telescopic pipe 3 to move smoothly. The inner diameter of the clamping ring 302 is equal to the inner diameter of the stop ring 101. The outer diameter of the clamping ring 302 is larger than the outer diameter of the stop ring 101. The inner diameter and the outer diameter of the stop ring 101 are the same as those of the limiting ring 103. The inner diameter of the telescopic pipe 3 is smaller than the inner diameter of the clamping ring 302. The outer diameter of the second fixed flange 301 is larger than the outer diameter of the telescopic pipe 3. The inner diameter of the second fixed flange 301 is smaller than the inner diameter of the telescopic pipe 3. The inner diameter of the second fixed flange 301 is the same as the inner diameter of the connecting pipe body 1. The outer diameters of the first fixed flange 2 and the second fixed flange 301 are the same. The number of the double-headed threaded rods 4 is four. The number of the fastening nuts 5 is two. The two fastening nuts 5 at one end of the double-headed threaded rod 4 are respectively located in front of and behind the first fixed flange 2. The two fastening nuts 5 at the other end of the double-headed threaded rod 4 are respectively located in front of and behind the second fixed flange 301.

[0022] It should be noted that the present utility model is a flexible connection structure of a PE cable protection pipe. When in use, when it is necessary to adjust the overall length of the flexible connector, rotate the fastening nuts 5 in front of and behind the second fixed flange 301, and then move the telescopic pipe 3 as needed. When the telescopic pipe 3 moves to the required position, use the fastening nuts 5 to position the telescopic pipe 3. The overall length of the flexible connector changes. In this way, the two cable protection pipes can be connected together by using the changed flexible connector, and there is no need to complete the connection of the two cable protection pipes by replacing flexible connectors of different lengths.

[0023] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only used to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible connection structure for a PE cable protection tube, characterized in that: The invention comprises a connecting pipe body (1), a No. 1 fixed flange (2), a telescopic pipe (3), a double-threaded rod (4) and a fastening nut (5); the surface of the connecting pipe body (1) is provided with a No. 1 fixed flange (2) at the rear end, the surface of the connecting pipe body (1) is provided with a telescopic pipe (3) movably, a double-threaded rod (4) is inserted between the telescopic pipe (3) and the No. 1 fixed flange (2), and fastening nuts (5) are provided on the surface of the double-threaded rod (4) near both ends.

2. A flexible connection structure of a PE cable protection tube according to claim 1, characterized in that: A stop ring (101) is provided on the surface of the connecting pipe body (1) and is fixedly sleeved at the front end; a clamping strip (102) is fixedly mounted on the rear surface of the stop ring (101); a limit ring (103) is fixedly mounted on the rear surface of the clamping strip (102); and the number of the clamping strips (102) is four.

3. The flexible connection structure of a PE cable protection tube according to claim 2, characterized in that: A second fixing flange (301) is fixedly mounted on the front end surface of the telescopic tube (3), a clamping ring (302) is fixedly mounted on the rear end surface of the telescopic tube (3), a clamping groove (303) is formed on the inner surface of the clamping ring (302), the number of the clamping grooves (303) is four, and the clamping strip (102) is embedded in the clamping grooves (303).

4. The flexible connection structure of a PE cable protection tube according to claim 3, characterized in that: The inner diameter of the snap ring (302) is equal to the inner diameter of the stop ring (101), the outer diameter of the snap ring (302) is greater than the outer diameter of the stop ring (101), and the inner diameter and outer diameter of the stop ring (101) are the same as those of the limit ring (103).

5. The flexible connection structure of a PE cable protection tube according to claim 4, characterized in that: The inner diameter of the telescopic tube (3) is smaller than the inner diameter of the clamping ring (302); the outer diameter of the second fixing flange (301) is larger than the outer diameter of the telescopic tube (3); the inner diameter of the second fixing flange (301) is smaller than the inner diameter of the telescopic tube (3); and the inner diameter of the second fixing flange (301) is the same as the inner diameter of the connecting tube body (1).

6. A flexible connection structure of a PE cable protection tube according to claim 5, characterized in that: The outer diameters of the first fixing flange (2) and the second fixing flange (301) are the same, the number of the double-headed threaded rods (4) is four, and the number of the fastening nuts (5) is two.

7. The flexible connection structure of a PE cable protection tube according to claim 6, characterized in that: The two fastening nuts (5) at one end of the double-threaded rod (4) are respectively located in front of and behind the first fixing flange (2), and the two fastening nuts (5) at the other end of the double-threaded rod (4) are respectively located in front of and behind the second fixing flange (301).

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