MPP cable protection pipe structure

Abstract

The invention relates to an MPP cable protection tube structure applied to the field of cable protection, through the arrangement of a fixing wire and other devices, after a cable penetrates through a protection tube, the protection tube is heated, at the moment, hot melt adhesive is heated and melted, the adsorption force between the hot melt adhesive and the inner wall of the protection tube becomes weak, and under the action of the elastic force of an elastic rope, the cable is protected; when the guide sleeve moves on the protection tube, all the fixing wires can be separated from the protection tube to fix the cable, compared with a traditional fixing mode, the overall strength and the sealing performance of the protection tube can be well guaranteed, and the service life of the protection tube is prolonged. And meanwhile, during fixing, tedious operation steps are not needed, the construction difficulty is greatly reduced, meanwhile, through arrangement of devices such as a connector, when the cable is separated from the protection pipe, the fixing effect of the fixing wire on the cable is lost, and the situation that the cable is difficult to disassemble is prevented.

Description

Technical Field

[0001] The invention relates to an MPP cable protection tube structure, in particular to an MPP cable protection tube structure applied in the field of cable protection. Background Art

[0002] When the cable is laid, the external MPP cable protection tube can provide good protection for the cable. The Chinese patent application number CN202310306509.8 discloses a communication cable protection tube, which fixes the cable by setting an inner support layer inside the protection tube body, supports the cable by supporting ribs and supporting components, and prevents the cable from shifting by fixing the inner support layer, thereby improving the protection effect of the cable.

[0003] In the above application, in order to use a supporting layer to fix the cable, an outer protective layer and an inner supporting layer are set, which greatly increases the cost of the protective tube. At the same time, the multiple connection ports set in the inner supporting layer will cause the overall strength of the protective tube to drop significantly, and the fixing structure is complicated, so further improvement is needed. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that, in order to use a supporting layer to fix the cable, an outer protective layer and an inner supporting layer are set, which greatly increases the cost of the protective tube. At the same time, the multiple connection ports set in the inner supporting layer will cause the overall strength of the protective tube to be greatly reduced, and the fixing structure is complicated, so further improvement is needed.

[0005] To solve the above problems, the present invention provides an MPP cable protection tube structure, including a protection tube, the inner wall of which is fixedly connected with multiple pressing sections and multiple lifting sections, the inner wall of the protection tube close to the pressing section and the lifting section is set to a rough surface, the multiple pressing sections and the lifting sections are alternately distributed, the pressing section is composed of a fixed wire, and the lifting section is composed of two fixed wires, the fixed wire includes an elastic rope, the outer wall in the middle of the elastic rope is fixedly connected with a fiber sleeve, the interior of the fiber sleeve is filled with hot melt adhesive, the two ends of the elastic rope are fixedly connected to the inner wall of the protection tube through a connector, the fiber sleeve is attached to the inner wall of the protection tube, and the hot melt adhesive is in a solidified state, the outer wall of the protection tube is slidably connected with a guide sleeve, the top and bottom ends of the guide sleeve are respectively provided with an air inlet and an air outlet, and also includes a heating tube, the inner wall of the heating tube is fixedly connected with a fan and an electric heating wire, the top of the heating tube is provided with an air hole, the electric heating wire is located between the fan and the air hole, and the bottom end of the heating tube is fixedly connected with an air outlet nozzle.

[0006] As a further improvement of the present application, the connectors at both ends of the elastic rope are symmetrically arranged, and the two connectors are on the same straight line with the center point of the protective tube. The fixing wires at the downward pressure section and the fixing wires at the upward lifting section are symmetrically arranged. Through the above arrangement, when multiple fixing wires are used to fix the cable, the cable can be distributed in an S shape, and the fixing effect of the cable can be further improved.

[0007] As a further improvement of the present application, the connector includes a base block fixed to the inner wall of the protective tube, a slide groove and a mounting groove are provided inside the base block, and side walls on both sides of the slide groove are provided with transverse grooves.

[0008] As a further improvement of the present application, a card block is slidably connected to the inner wall of the slide groove, a dislocation groove matching the transverse groove is provided at the top of the card block, a top spring is fixedly connected between the bottom end of the card block and the bottom end of the slide groove, and the end of the elastic rope close to the connector passes through the transverse groove and the dislocation groove.

[0009] As another improvement of the present application, an intermediate groove is provided between the slide groove and the installation groove, and a stretching rod is fixedly connected to the side wall at the bottom end of the clamping block, and the stretching rod passes through the intermediate groove and is slidably connected thereto.

[0010] As another improved supplement of the present application, a pressure tank is fixedly connected to the inner wall of the mounting groove, a piston is slidably connected to the inner wall of the pressure tank, and a push rod is fixedly connected to the top of the piston.

[0011] As another improved supplement of the present application, the inner wall of the mounting groove is rotatably connected to a pulley, a pull rope is fixedly connected between the top end of the top rod and one end of the extension rod, and the pull rope is rotatably connected to the pulley.

[0012] As another improvement of the present application, it also includes a heat-conducting wire, which passes through the pressure tank at multiple connectors, and the penetration point between the heat-conducting wire and the pressure tank is located on the lower side of the top rod. Through the above arrangement, when the cable is separated from the protective tube, the fixing wire loses its fixing effect on the cable, preventing the cable from being difficult to disassemble.

[0013] To summarize, through the setting of devices such as fixing wires, after the cable passes through the protective tube, the protective tube is heated. At this time, the hot melt adhesive is melted by the heat, and the adsorption force between the hot melt adhesive and the inner wall of the protective tube becomes weaker. Under the action of the elastic force of the elastic rope, the fiber sleeve is separated from the inner wall of the protective tube. At this time, the fixing wire is in close contact with the cable to fix the protective tube. When the guide sleeve moves on the protective tube, all the fixing wires can be detached from the protective tube to fix the cable. Compared with the traditional fixing method, the overall strength and sealing of the protective tube can be better guaranteed. At the same time, when fixing, no cumbersome operating steps are required, which greatly reduces the construction difficulty. At the same time, through the setting of devices such as connectors, when the cable is separated from the protective tube, the fixing wire loses its fixing effect on the cable, thereby preventing the cable from being difficult to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a protection tube in the first embodiment of the present application;

[0015] Figure 2 This is a cross-sectional perspective view of the protection tube in the first and second embodiments of the present application;

[0016] Figure 3 This is a front cross-sectional view of a fixing wire in a first embodiment of the present application;

[0017] Figure 4 This is a front cross-sectional view of the heating tube in the first embodiment of the present application;

[0018] Figure 5 This is a front cross-sectional view of a connector in a second embodiment of the present application;

[0019] Figure 6 This is a state diagram of the second embodiment of the present application in which the offset groove and the transverse groove are on the same straight line;

[0020] Figure 7 This is a state diagram of the cable being fixed in the first embodiment of the present application.

[0021] Description of the numbers in the figure:

[0022] 1. Protective tube; 2. Downward pressure section; 3. Upward lifting section; 4. Fixed wire; 401. Elastic rope; 402. Fiber sleeve; 403. Hot melt adhesive; 5. Guide sleeve; 6. Air inlet; 7. Air outlet; 8. Heating tube; 9. Fan; 10. Air hole; 11. Heating wire; 12. Air outlet; 13. Connector; 1301. Base block; 1302. Slide; 1303. Mounting slot; 1304. Block; 1305. Dislocation slot; 1306. Top spring; 1307. Horizontal slot; 1308. Middle slot; 1309. Extension rod; 1310. Pressure tank; 1311. Piston; 1312. Push rod; 1313. Pulley; 1314. Pull rope; 14. Thermal wire. DETAILED DESCRIPTION

[0023] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0024] The first implementation method:

[0025] Figure 1-4 and Figure 7An MPP cable protection tube structure is shown, comprising a protection tube 1, wherein the inner wall of the protection tube 1 is fixedly connected with a plurality of pressing sections 2 and a plurality of lifting sections 3, the inner walls of the protection tube 1 close to the pressing sections 2 and the lifting sections 3 are all set to a rough surface, the pressing sections 2 and the lifting sections 3 are alternately distributed, the pressing sections 2 are composed of a fixing wire 4, the lifting sections 3 are composed of two fixing wires 4, the fixing wire 4 comprises an elastic rope 401, a fiber sleeve 402 is fixedly connected to the outer wall of the middle part of the elastic rope 401, the interior of the fiber sleeve 402 is filled with hot melt adhesive 403, the elastic rope 40 The two ends of 1 are fixedly connected to the inner wall of the protection tube 1 through the connector 13, the fiber sleeve 402 is attached to the inner wall of the protection tube 1, and the hot melt adhesive 403 is in a solidified state, the outer wall of the protection tube 1 is slidably connected with the guide sleeve 5, the top and bottom ends of the guide sleeve 5 are respectively provided with an air inlet 6 and an air outlet 7, and also include a heating tube 8, the inner wall of the heating tube 8 is fixedly connected with a fan 9 and an electric heating wire 11, the top end of the heating tube 8 is provided with an air hole 10, the electric heating wire 11 is located between the fan 9 and the air hole 10, and the bottom end of the heating tube 8 is fixedly connected with an air outlet nozzle 12.

[0026] After the cable passes through the protective tube 1, the air outlet 12 is inserted into the air inlet 6, and then the fan 9 and the electric heating wire 11 are started to blow hot air into the inside of the guide sleeve 5 to heat the protective tube 1. At this time, the hot melt adhesive 403 is melted by the heat, and the adsorption force between the hot melt adhesive 403 and the inner wall of the protective tube 1 becomes weaker. Under the action of the elastic force of the elastic rope 401, the fiber sleeve 402 is separated from the inner wall of the protective tube 1. At this time, the fixing wire 4 is in close contact with the cable to fix the protective tube 1. When the guide sleeve 5 moves on the protective tube 1, all the fixing wires 4 can be separated from the protective tube 1 to fix the cable. Compared with the traditional fixing method, the overall strength and sealing of the protective tube 1 can be better guaranteed, and there is no need to use multiple layers of protective tubes, which reduces the cost. At the same time, the operation steps are simple during fixing, which greatly reduces the construction difficulty.

[0027] The connectors 13 at both ends of the elastic rope 401 are symmetrically arranged, and the two connectors 13 are on the same straight line with the center point of the protective tube 1. The fixing wires 4 at the downward pressing section 2 and the fixing wires 4 at the upward lifting section 3 are symmetrically arranged. Through the above arrangement, when multiple fixing wires 4 are used to fix the cable, the cables can be distributed in an S shape, and the fixing effect of the cable can be further improved.

[0028] The second implementation method:

[0029] Figure 2 and Figure 5-6An MPP cable protection tube structure is shown. Different from the first embodiment, the connector 13 includes a base block 1301 fixed to the inner wall of the protection tube 1, a slide groove 1302 and an installation groove 1303 are provided inside the base block 1301, and the side walls on both sides of the slide groove 1302 are provided with transverse grooves 1307. A clamping block 1304 is slidably connected to the inner wall of the slide groove 1302, and a dislocation groove 1305 matching the transverse groove 1307 is provided on the top of the clamping block 1304. A top spring 1306 is fixedly connected between the bottom end of the clamping block 1304 and the bottom end of the slide groove 1302, and one end of the elastic rope 401 close to the connector 13 passes through the transverse groove 1307 and the dislocation groove 1305. An intermediate groove 1308 is provided between the slide groove 1302 and the installation groove 1303, and the clamping block 1304 is provided with a dislocation groove 1305 matching the transverse groove 1307. The side wall at the bottom end of block 1304 is fixedly connected to an extension rod 1309, which passes through the middle groove 1308 and is slidably connected thereto, the inner wall of the mounting groove 1303 is fixedly connected to a pressure tank 1310, the inner wall of the pressure tank 1310 is slidably connected to a piston 1311, the top of the piston 1311 is fixedly connected to a push rod 1312, the inner wall of the mounting groove 1303 is rotatably connected to a pulley 1313, a pull rope 1314 is fixedly connected between the top of the push rod 1312 and one end of the extension rod 1309, the pull rope 1314 is rotatably connected to the pulley 1313, and also includes a thermal wire 14, which passes through the pressure tank 1310 at multiple connectors 13, and the penetration point of the thermal wire 14 and the pressure tank 1310 is located on the lower side of the push rod 1312.

[0030] Under the action of the top spring 1306, the clamping block 1304 is driven to move upward. At this time, the dislocation groove 1305 and the transverse groove 1307 are not in the same straight line. The elastic rope 401 is fixed to the connector 13 by a clamping connection. When the cable needs to be separated from the protective tube 1, the thermal wire 14 is heated. At this time, the gas inside the pressure tank 1310 is heated, so that the pressure on the lower side of the piston 1311 becomes larger, driving the top rod 1312 to move upward, and the clamping block 1304 is pulled downward by the action of the pull rope 1314 until the dislocation groove 1305 and the transverse groove 1307 are in the same straight line. At this time, the elastic rope 401 can be separated from the connector 13. Through the above arrangement, when the cable is separated from the protective tube 1, the fixing wire 4 loses its fixing effect on the cable, preventing the cable from being difficult to disassemble.

[0031] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An MPP cable protection tube structure, comprising a protection tube (1), characterized in that: The inner wall of the protection tube (1) is fixedly connected with a plurality of pressing sections (2) and a plurality of lifting sections (3); the inner wall of the protection tube (1) close to the pressing sections (2) and the lifting sections (3) is set as a rough surface; the plurality of pressing sections (2) and the lifting sections (3) are alternately distributed; the pressing section (2) is composed of a fixing wire (4); the lifting section (3) is composed of two fixing wires (4); the fixing wire (4) comprises an elastic rope (401); the outer wall of the middle part of the elastic rope (401) is fixedly connected with a fiber sleeve (402); the interior of the fiber sleeve (402) is filled with hot melt adhesive (403); the two ends of the elastic rope (401) are connected to the protection tube (1); The inner walls of the protective tube (1) are fixedly connected by a connector (13), the fiber sleeve (402) is in contact with the inner wall of the protective tube (1), and the hot melt adhesive (403) is in a solidified state, the outer wall of the protective tube (1) is slidably connected with a guide sleeve (5), the top and bottom ends of the guide sleeve (5) are respectively provided with an air inlet hole (6) and an air outlet hole (7), and also includes a heating tube (8), the inner wall of the heating tube (8) is fixedly connected with a fan (9) and an electric heating wire (11), the top end of the heating tube (8) is provided with an air hole (10), the electric heating wire (11) is located between the fan (9) and the air hole (10), and the bottom end of the heating tube (8) is fixedly connected with an air outlet nozzle (12).

2. The MPP cable protection tube structure according to claim 1, characterized in that: The connectors (13) at both ends of the elastic rope (401) are symmetrically arranged, and the two connectors (13) and the center point of the protective tube (1) are on the same straight line, and the fixing wire (4) at the downward pressing section (2) and the fixing wire (4) at the upward lifting section (3) are symmetrically arranged.

3. The MPP cable protection tube structure according to claim 1, characterized in that: The connector (13) comprises a base block (1301) fixed to the inner wall of the protective tube (1), a slide groove (1302) and a mounting groove (1303) are provided inside the base block (1301), and side walls on both sides of the slide groove (1302) are provided with transverse grooves (1307).

4. The MPP cable protection tube structure according to claim 3, characterized in that: The inner wall of the slide groove (1302) is slidably connected with a clamping block (1304), the top of the clamping block (1304) is provided with an offset groove (1305) matching the transverse groove (1307), a top spring (1306) is fixedly connected between the bottom end of the clamping block (1304) and the bottom end of the slide groove (1302), and the end of the elastic rope (401) close to the connector (13) passes through the transverse groove (1307) and the offset groove (1305).

5. The MPP cable protection tube structure according to claim 4, characterized in that: An intermediate groove (1308) is provided between the slide groove (1302) and the installation groove (1303), and a stretching rod (1309) is fixedly connected to the side wall at the bottom end of the clamping block (1304), and the stretching rod (1309) passes through the intermediate groove (1308) and is slidably connected thereto.

6. The MPP cable protection tube structure according to claim 5, characterized in that: A pressure tank (1310) is fixedly connected to the inner wall of the installation groove (1303), a piston (1311) is slidably connected to the inner wall of the pressure tank (1310), and a top end of the piston (1311) is fixedly connected to a push rod (1312).

7. The MPP cable protection tube structure according to claim 6, characterized in that: The inner wall of the mounting groove (1303) is rotatably connected to a pulley (1313), a pull rope (1314) is fixedly connected between the top end of the top rod (1312) and one end of the extension rod (1309), and the pull rope (1314) is rotatably connected to the pulley (1313).

8. The MPP cable protection tube structure according to claim 7, characterized in that: It also includes a heat conductive wire (14), which penetrates the pressure tank (1310) at the plurality of connectors (13), and the penetration point between the heat conductive wire (14) and the pressure tank (1310) is located at the lower side of the top rod (1312).

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