Pressure-resistant buried power cable protection tube

Abstract

The utility model discloses a pressure-resistant buried power cable protection tube, and relates to the technical field of power cable protection tubes, the pressure-resistant buried power cable protection tube comprises an outer protection tube and an inner protection tube arranged in the outer protection tube, and a plurality of support plates are uniformly distributed between the outer protection tube and the inner protection tube; the length direction of each supporting plate is arranged along the length direction of the outer protection tube; cavities are formed between every two adjacent supporting plates and the outer protection pipe and between every two adjacent supporting plates and the inner protection pipe, first fixing grooves with the same number as the supporting plates are evenly distributed in the outer side wall of the outer protection pipe in the circumferential direction of the outer protection pipe, each first fixing groove is located between every two adjacent supporting plates, and isolation plates for isolating the cavities are arranged in the first fixing grooves. One end of the isolation plate is connected with the outer side wall of the inner protection tube, and the other end is connected with the inner side wall of the fixing groove. According to the invention, the isolation plate is arranged between the outer protection tube and the inner protection tube, so that the power cable protection tube does not deform, and the anti-compression effect of the power cable protection tube is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power cable protection pipes, in particular to a pressure-resistant buried power cable protection pipe. BACKGROUND

[0002] The power cable protection pipe refers to a metal protection pipe with certain mechanical strength which is laid on the outer layer of a cable to prevent the cable from being damaged. The cable protection pipe is mainly installed at the section where a communication cable intersects with a power line to prevent the power line from being broken to cause a short circuit accident, and to prevent the communication cable and steel wire rope from being electrified to protect the cable, the switch, the core board and the whole machine from being burnt, and to isolate the magnetic field of the power line.

[0003] The existing power cable protection pipe is prone to be deformed after being subjected to force, which is not conducive to the power cable. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a pressure-resistant buried power cable protection pipe to reduce the deformation of the protection pipe.

[0005] The application provides a pressure-resistant buried power cable protection pipe which adopts the following technical scheme:

[0006] The pressure-resistant buried power cable protection pipe comprises an outer protection pipe and an inner protection pipe arranged in the outer protection pipe, a plurality of support plates are uniformly arranged between the outer protection pipe and the inner protection pipe, the length direction of each support plate is arranged along the length direction of the outer protection pipe, a cavity is formed between the adjacent two support plates and the outer protection pipe and the inner protection pipe, a plurality of fixing grooves are uniformly arranged on the outer side wall of the outer protection pipe along the circumferential direction, the number of the fixing grooves is the same as that of the support plates, each fixing groove is located between the adjacent two support plates, an isolation plate is arranged in each fixing groove, one end of the isolation plate is connected with the outer side wall of the inner protection pipe, and the other end of the isolation plate is connected with the inner side wall of the fixing groove.

[0007] By uniformly arranging the isolation plates between the outer protection pipe and the inner protection pipe, the power cable protection pipe will not be deformed, the compression resistance of the power cable protection pipe is enhanced, and the protection effect of the inner protection pipe and the outer protection pipe on the cable is improved.

[0008] Optionally, two mounting grooves are arranged on the outer side wall of the inner protection pipe between the adjacent two support plates, and a mounting protruding block is arranged on the end of the isolation plate close to the inner protection pipe and is inserted into the mounting groove.

[0009] By adopting the technical scheme, the mounting groove is arranged on the outer side wall of the inner protection pipe, the isolation plate is provided with the mounting protruding block, the mounting protruding block can be inserted into the mounting groove, the isolation plate is connected with the inner protection pipe more closely, the position of the isolation plate cannot be moved, and the compression resistance effect of the power cable protection pipe is enhanced.

[0010] Optionally, the outer side wall of the outer protection pipe is provided with a second fixing groove in communication with the inner side wall of the first fixing groove, and the isolation plate is provided with a fixing protruding block matched with the second fixing groove.

[0011] By adopting the technical scheme, the second fixing groove is arranged on the outer side wall of the outer protection pipe, the isolation plate is provided with the fixing protruding block, the second fixing groove is matched with the fixing protruding block, the second fixing groove is in communication with the inner side wall of the mounting groove, the isolation plate is connected with the outer protection pipe more closely, the position of the isolation plate is better fixed, and the compression resistance effect of the power cable protection pipe is increased.

[0012] Optionally, the inner side wall of the second fixing groove is provided with a magnetic member magnetically attracted to the fixing protruding block.

[0013] By adopting the technical scheme, the magnetic member is arranged on the second fixing groove, the second fixing groove and the fixing protruding block are connected more closely by using the adsorption of the magnetic member, the isolation plate is connected with the outer protection pipe more closely, the compression resistance effect of the power cable protection pipe is increased, and the protection effect of the inner protection pipe and the outer protection pipe on the cable is improved.

[0014] Optionally, the inner side wall of the second fixing groove is provided with a positioning groove, and the magnetic member is provided with a positioning block matched with the positioning groove.

[0015] By adopting the technical scheme, the positioning groove is arranged on the second fixing groove, and the positioning block is arranged on the magnetic member, so that the magnetic member is connected with the inner side wall of the second fixing groove more closely, and the position of the magnetic member cannot be moved.

[0016] Optionally, the surface of the isolation plate abutting against the inner side wall of the first fixing groove and the inner side wall of the second fixing groove is provided with a sealing layer.

[0017] By adopting the technical scheme, the sealing layer effectively isolates external media, prevents the penetration of gas, liquid or other substances, enhances the overall strength and stability of the structure, and improves the protection effect of the outer protection pipe on the cable.

[0018] Optionally, a buffer material is arranged in the cavity.

[0019] By adopting the technical scheme, the buffer material is arranged in the cavity, the buffer material has good elasticity, the buffer effect is increased, external force is effectively absorbed and dispersed, and the compression resistance effect of the power cable protection pipe is enhanced.

[0020] Optionally, the outer protective pipe outer wall is provided with a containing hole for putting the buffer material into the cavity, and the containing hole is provided with a blocking plate.

[0021] By using the above technical scheme, the containing hole provides an open buffer material filling channel, the filling operation can be completed without disassembling the overall structure, and the construction complexity and maintenance cost are significantly reduced.

[0022] To sum up, the application has at least one of the following beneficial technical effects of the pressure-resistant buried power cable protection pipe:

[0023] 1. The isolation plates are evenly distributed between the outer protective pipe and the inner protective pipe, so that the power cable protection pipe does not deform, the compression resistance of the power cable protection pipe is enhanced, and the protection effect of the inner protective pipe and the outer protective pipe on the cable is improved;

[0024] 2. The mounting groove is arranged on the outer sidewall of the inner protective pipe, the isolation plate is provided with the mounting protruding block, the mounting protruding block can be inserted into the mounting groove, the isolation plate is connected more closely with the inner protective pipe, the position of the isolation plate does not move, and the compression resistance of the power cable protection pipe is enhanced;

[0025] 3. The buffer material is arranged in the cavity, the buffer material has good elasticity, the buffer effect is increased, external forces are effectively absorbed and dispersed, and the compression resistance of the power cable protection pipe is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of a pressure-resistant buried power cable protection pipe in the embodiment of the application;

[0027] Figure 2 is a sectional view of a pressure-resistant buried power cable protection pipe in the embodiment of the application;

[0028] Figure 3 is Figure 2 is an enlarged view of A in FIG.

[0029] In the figure, 1 is an outer protective pipe, 11 is a first fixing groove, 12 is a second fixing groove, 121 is a magnetic part, 13 is a positioning groove, 2 is an inner protective pipe, 21 is a mounting groove, 3 is a support plate, 4 is a cavity, 5 is an isolation plate, 51 is a mounting protruding block, 52 is a fixing protruding block, 1211 is a positioning block, 6 is a sealing layer, 7 is a buffer material, 71 is a containing hole, and 72 is a blocking plate. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying Figure 1 - the accompanying Figure 3 The application will be further described in detail.

[0031] A pressure-resistant buried power cable protection pipe, with reference toFigure 1 and Figure 2 , including the outer protective tube 1 and the inner protective tube 2 arranged in the outer protective tube 1, a plurality of support plates 3 are evenly arranged between the outer protective tube 1 and the inner protective tube 2, in the embodiment of the application, the plurality of support plates 3 are three support plates 3, the length direction of each support plate 3 is arranged along the length direction of the outer protective tube 1; the support plate 3 is connected with the outer protective tube 1 and the inner protective tube 2 by welding, the adjacent two support plates 3 and the outer protective tube 1, the inner protective tube 2 form a cavity 4, the outer side wall of the outer protective tube 1 is evenly distributed along the circumference and is provided with a fixed groove 11 which is the same as the number of the support plate 3, each fixed groove 11 is located between the adjacent two support plates 3, the fixed groove 11 is provided with a partition plate 5 which separates the cavity 4, one end of the partition plate 5 is connected with the outer side wall of the inner protective tube 2, and the other end is connected with the inner side wall of the fixed groove 11.

[0032] Referring to Figure 1 , the cavity 4 is provided with a buffer material 7, the buffer material 7 is rubber particles, which increases the buffering effect, effectively absorbs and disperses external force, and enhances the compression resistance of the power cable protective tube. The outer side wall of the outer protective tube 1 is provided with a containing hole 71 for putting the buffer material 7 into the cavity 4, the containing hole 71 is provided with a plugging plate 72, and the plugging plate 72 is connected with the containing hole 71 by adhesive connection.

[0033] Referring to Figure 2 , the outer side wall of the inner protective tube 2 is provided with two mounting grooves 21 between the adjacent two support plates 3, one end of the partition plate 5 close to the inner protective tube 2 is provided with a mounting protruding block 51 inserted into the mounting groove 21, and the partition plate 5 and the mounting protruding block 51 are connected by screws, so that the partition plate 5 and the inner protective tube 2 are connected more tightly.

[0034] Referring to Figure 2 and Figure 3 , the outer side wall of the outer protective tube 1 is provided with a fixed groove 12 which is communicated with the inner side wall of the fixed groove 11, the partition plate 5 is provided with a fixed protruding block 52 which is matched with the fixed groove 12, and the partition plate 5 and the fixed protruding block 52 are connected by screws, so that the partition plate 5 and the outer protective tube 1 are connected more tightly. The inner side wall of the fixed groove 12 is provided with a magnetic member 121 which is magnetically attracted with the fixed protruding block 52, the magnetic member 121 is a magnet, the inner side wall of the fixed groove 12 and the magnetic member 121 are connected by screws, the adsorption of the magnetic member 121 makes the partition plate 5 and the outer protective tube 1 connected more tightly, and the compression resistance of the power cable protective tube is increased. When the distance between the magnetic member 121 and the cable is relatively large, the magnetic member 121 has no interference to the cable, when the distance between the magnetic member 121 and the cable is relatively small, the influence of the magnetic member 121 to the cable is small, and the outer side wall of the inner protective tube 2 is provided with an isolation coating, the isolation coating is a nickel alloy coating.

[0035] Referring to Figure 2 andFigure 3 The inner side wall of the fixed groove two 12 is provided with a positioning groove 13, the magnetic part 121 is provided with a positioning block 1211 matched with the positioning groove 13, the magnetic part 121 and the positioning block 1211 are connected through welding, and the position of the magnetic part 121 cannot be moved. The side of the isolation plate 5 abutting against the inner side wall of the fixed groove one 11 and the inner side wall of the fixed groove two 12 is provided with a sealing layer 6, the sealing layer 6 is a rubber layer, external medium is effectively isolated, and the overall strength and stability of the structure are enhanced.

[0036] The implementation principle of the embodiment of the application is that the support plates 3 are uniformly distributed between the outer protective pipe 1 and the inner protective pipe 2, the isolation plate 5 is placed in the fixed groove one 11, the isolation plate 5 is tightly connected with the outer protective pipe 1 and the inner protective pipe 2, the buffer material 7 is placed in the accommodating hole 71 into the cavity 4, and the protection effect of the inner protective pipe 2 and the outer protective pipe 1 on the cable is improved.

[0037] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A pressure-resistant buried power cable protection pipe, characterized in that: It includes an outer protective tube (1) and an inner protective tube (2) disposed inside the outer protective tube (1). Several support plates (3) are evenly distributed between the outer protective tube (1) and the inner protective tube (2). The length direction of each support plate (3) is along the length direction of the outer protective tube (1). A cavity (4) is formed between two adjacent support plates (3), the outer protective tube (1), and the inner protective tube (2). The outer wall of the outer protective tube (1) is evenly distributed with the same number of fixing grooves (11) as the support plates (3) along its circumference. Each fixing groove (11) is located between two adjacent support plates (3). An isolation plate (5) is provided in the fixing groove (11) to isolate the cavity (4). One end of the isolation plate (5) is connected to the outer wall of the inner protective tube (2), and the other end is connected to the inner wall of the fixing groove (11).

2. The pressure-resistant buried power cable protection pipe according to claim 1, characterized in that: The outer wall of the inner protective tube (2) is provided with two mounting grooves (21) between two adjacent support plates (3), and the isolation plate (5) is provided with a mounting protrusion (51) inserted into the mounting groove (21) at one end near the inner protective tube (2).

3. The pressure-resistant buried power cable protection pipe according to claim 1, characterized in that: The outer protective tube (1) has a second fixing groove (12) on its outer side wall that communicates with the inner side wall of the first fixing groove (11), and the isolation plate (5) has a fixing protrusion (52) that is adapted to the second fixing groove (12).

4. The pressure-resistant buried power cable protection pipe according to claim 3, characterized in that: The inner wall of the fixing groove (12) is provided with a magnetic component (121) that is magnetically attracted to the fixing protrusion (52).

5. A pressure-resistant buried power cable protection pipe according to claim 4, characterized in that: The inner wall of the fixed groove (12) is provided with a positioning groove (13), and the magnetic component (121) is provided with a positioning block (1211) that is compatible with the positioning groove (13).

6. A pressure-resistant buried power cable protection pipe according to claim 3, characterized in that: The surfaces of the isolation plate (5) that abut against the inner walls of the first fixing groove (11) and the second fixing groove (12) are provided with a sealing layer (6).

7. A pressure-resistant buried power cable protection pipe according to claim 1, characterized in that: The cavity (4) is provided with a cushioning material (7).

8. A pressure-resistant buried power cable protection pipe according to claim 7, characterized in that: The outer protective tube (1) has an outer wall with a receiving hole (71) for placing the buffer material (7) into the cavity (4), and a sealing plate (72) is provided in the receiving hole (71).

Images