MPP cable protection pipe facilitating cable penetration

Abstract

The utility model discloses an MPP cable protection tube convenient for cable penetration, and relates to the technical field of cable protection tubes, the cable protection tube comprises a protection tube, the protection tube is internally provided with an installation through hole, the surface of the protection tube is provided with a plurality of corrugated rings; the sliding frames are arranged on the upper end face and the lower end face of the interior of the installation through hole, the number of the sliding frames is two, rotating grooves are formed in the sliding frames, and rotating columns are installed in the rotating grooves; the limiting frame is arranged on the protection pipe, a connecting frame is arranged on the limiting frame, a penetrating opening is formed in the connecting frame, and the protection pipe is connected with the penetrating opening in an inserted mode. And insertion is not convenient, so that the installation of the protection tube is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, in particular to an MPP cable protection tube which is convenient for inserting cables. Background Art

[0002] MPP pipe is also called MPP power cable protection pipe, which is divided into trenching type and trenchless type. MPP trenchless pipe is also called MPP jacking pipe or dragging pipe. MPP pipe uses modified polypropylene as the main raw material, which has the characteristics of high temperature resistance and external pressure resistance. It is suitable for medium and low voltage transmission line cable pipes below 10KV;

[0003] For example, the Chinese authorized patent with announcement number CN209526451U (MPP cable protection tube): includes an inner tube and an outer tube arranged inside and outside, and also includes a first supporting plate for supporting the cable, which is relatively arranged at both ends of the inner tube, and a partition for separating the cables arranged at equal intervals along the length direction of the first supporting plate. The first supporting plate is fixed to the inner wall of the inner tube through a mounting member. The length of the first supporting plate is consistent with the diameter of the inner tube. The upper surface of the first supporting plate is provided with a groove along its length direction. The partition includes a partition block arranged at equal intervals on the bottom wall of the groove and a spring arranged on the bottom wall of the partition block. The end of the spring away from the partition block is fixedly connected to the bottom wall of the groove. The inner tube and the outer tube arranged inside and outside strengthen the protection of the cable. The first supporting plate is used to support the cable. The first supporting plate is installed on the inner wall of the inner tube through the mounting member. The cables can be separated by the partition, which can avoid the cables from being piled up together, thereby improving the heat dissipation effect of the cable and the utilization rate of the internal space of the inner tube.

[0004] However, the cable protection tube in the above-mentioned prior art is not convenient for inserting the cable due to its length when the cable passes through the inside of the protection tube, thereby affecting the installation of the protection tube; therefore, it does not meet the existing needs. In this regard, we propose an MPP cable protection tube that is easy to insert the cable. Utility Model Content

[0005] The purpose of the utility model is to provide an MPP cable protection tube that is convenient for inserting cables, so as to solve the problem that the cable protection tube in the prior art proposed in the above background technology is inconvenient to insert the cables when passing through the protection tube due to its length, thus affecting the installation of the protection tube.

[0006] To achieve the above object, the utility model provides the following technical solution: an MPP cable protection tube that is convenient for inserting cables, comprising a protection tube, a mounting through hole is provided inside the protection tube, a corrugated ring is provided on the surface of the protection tube, and the corrugated ring is provided in plurality;

[0007] Also includes:

[0008] A sliding frame, which is arranged on the upper and lower end surfaces inside the mounting through hole, and two sliding frames are provided, a rotating groove is provided inside the sliding frame, and a rotating column is installed inside the rotating groove;

[0009] The limiting frame is arranged on the protection tube, the limiting frame is provided with a connecting frame, the interior of the connecting frame is provided with an insertion opening, and the protection tube is plug-connected with the insertion opening.

[0010] Preferably, grooves are provided between the corrugated rings, and the limiting frame is provided inside the grooves.

[0011] Preferably, one side end surface and the lower surface of the limiting frame are both provided with plug interfaces, and there are six plug interfaces.

[0012] Preferably, the other side end surface and the upper surface of the limiting frame are both provided with plug-in columns, and six of the plug-in columns are provided.

[0013] Preferably, a clamping ring is provided on the surface of the plug-in column, and the plug-in column is plug-connected to the plug interface via the clamping ring.

[0014] Preferably, a plurality of rotating columns are provided, and the rotating columns are rotatably connected to the inside of the rotating groove.

[0015] Preferably, a heat insulation layer is provided inside the protection tube, an outer protective layer is provided on the outer surface of the heat insulation layer, and an inner protective layer is provided on the inner surface of the heat insulation layer.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model sets the sliding frame on the upper and lower end surfaces inside the installation through hole. When placing the cable, the surface of the cable is in contact with the surface of the rotating column on the surface of the sliding frame. The rotation of the rotating column in the rotating groove allows the cable to slide inside the installation through hole inside the protective tube, which is convenient for inserting the cable. This solves the problem in the prior art that when inserting the cable, the cable protection tube is inconvenient to insert when passing through the protection tube due to its length, thereby affecting the installation of the protection tube.

[0018] 2. By setting a limit frame, the limit frame is set inside the groove between the corrugated rings, and the protective tube is installed inside the insertion opening inside the limit frame. After that, the limit frame can be assembled and spliced ​​by using the plug-in connection of the plug-in column and the plug-in interface, which not only plays a role in limiting the protective tube, but also facilitates the placement of the protective tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of the cable protection tube of the utility model;

[0020] Figure 2 It is an enlarged schematic diagram of the limit frame structure of the utility model;

[0021] Figure 3 It is an enlarged schematic diagram of the sliding frame structure of the utility model;

[0022] Figure 4 It is an enlarged schematic diagram of the partial internal structure of the protection tube of the utility model;

[0023] In the figure: 1. protective tube; 2. corrugated ring; 3. groove; 4. sliding frame; 5. limiting frame; 6. connecting frame; 7. insertion port; 8. plug-in port; 9. plug-in column; 10. clamping ring; 11. rotating groove; 12. rotating column; 13. mounting through hole; 14. inner protective layer; 15. thermal insulation layer; 16. outer protective layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: an MPP cable protection tube for inserting cables, comprising a protection tube 1, a mounting through hole 13 is arranged inside the protection tube 1, a corrugated ring 2 is arranged on the surface of the protection tube 1, and a plurality of corrugated rings 2 are arranged;

[0026] Also includes:

[0027] The sliding frame 4 is arranged at the upper and lower end surfaces inside the installation through hole 13, and two sliding frames 4 are provided. The sliding frame 4 is provided with a rotating groove 11 inside, and a rotating column 12 is installed inside the rotating groove 11;

[0028] The limiting frame 5 is arranged on the protection tube 1, and the limiting frame 5 is provided with a connecting frame 6. The connecting frame 6 is provided with an insertion port 7 inside, and the protection tube 1 is plugged and connected with the insertion port 7. When in use, the sliding frame 4 is arranged on the upper and lower end surfaces inside the installation through hole 13. When placing the cable, the surface of the cable is in contact with the surface of the rotating column 12 on the surface of the sliding frame 4. The rotation of the rotating column 12 in the rotating groove 11 allows the cable to slide inside the installation through hole 13 inside the protection tube 1, which is convenient for the insertion of the cable, and solves the problem of the prior art. During the operation, when the cable is inserted into the cable protection tube 1, it is inconvenient to insert the cable due to its length when passing through the inside of the protection tube 1, thus affecting the installation of the protection tube 1. In addition, a limit frame 5 is provided, and the limit frame 5 is provided inside the groove 3 between the corrugated rings 2. The protection tube 1 is installed inside the insertion opening 7 inside the limit frame 5. After that, the limit frame 5 can be assembled and spliced ​​by utilizing the plug-in connection of the plug-in column 9 and the plug-in interface 8, which not only plays a role in limiting the protection tube 1, but also facilitates the placement of the protection tube 1.

[0029] See also Figure 1-Figure 4 A groove 3 is provided between the corrugated rings 2, and the limit frame 5 is provided inside the groove 3. The sliding frame 4 is provided on the upper and lower end surfaces inside the mounting through hole 13. When placing the cable, the surface of the cable is in contact with the surface of the rotating column 12 on the surface of the sliding frame 4. The rotation of the rotating column 12 in the rotating groove 11 allows the cable to slide inside the mounting through hole 13 inside the protective tube 1, which facilitates the insertion of the cable. This solves the problem in the prior art that the cable protection tube 1 is inconvenient to insert the cable when passing through the protection tube 1 due to its length, thereby affecting the installation of the protection tube 1.

[0030] See also Figure 1-Figure 4 One side end face and the lower surface of the limiting frame 5 are both provided with plug-in interfaces 8, and there are six plug-in interfaces 8. The other side end face and the upper surface of the limiting frame 5 are both provided with plug-in columns 9, and there are six plug-in columns 9. The surface of the plug-in column 9 is provided with a clamping ring 10, and the plug-in column 9 is plug-connected with the plug-in interface 8 through the clamping ring 10. The protective tube 1 is installed inside the insertion port 7 inside the limiting frame 5. After that, the plug-in connection between the plug-in column 9 and the plug-in interface 8 can be used to assemble and splice the limiting frame 5, which not only plays a role in limiting the protective tube 1, but also facilitates the placement of the protective tube 1.

[0031] See also Figure 1-Figure 4 A plurality of rotating posts 12 are provided, and the rotating posts 12 are rotatably connected to the inside of the rotating groove 11 .

[0032] See also Figure 1-Figure 4An insulation layer 15 is arranged inside the protective tube 1, an outer protective layer 16 is arranged on the outer surface of the insulation layer 15, and an inner protective layer 14 is arranged on the inner surface of the insulation layer 15. Both the inner protective layer 14 and the outer protective layer 16 are polyethylene PE, which has good insulation performance, chemical stability, no rust, no aging and other characteristics, and can adapt to harsh environments. The insulation layer 15 is superfiber refractory cotton, which is a thermal insulation material mainly formed by special industrial treatment of raw materials such as silica and alumina.

[0033] Working principle: when in use, the sliding frame 4 is set on the upper and lower end surfaces inside the installation through hole 13. When placing the cable, the surface of the cable is in contact with the surface of the rotating column 12 on the surface of the sliding frame 4. The rotation of the rotating column 12 in the rotating groove 11 allows the cable to slide inside the installation through hole 13 inside the protective tube 1, which is convenient for the insertion of the cable. This solves the problem in the prior art that the cable protection tube 1 is inconvenient to insert the cable when passing through the protective tube 1 due to its length, thereby affecting the installation of the protective tube 1. In addition, a limit frame 5 is set, and the limit frame 5 is set in the groove 3 between the corrugated rings 2. The protective tube 1 is installed in the insertion port 7 inside the limit frame 5. After that, the limit frame 5 can be assembled and spliced ​​by utilizing the plug-in connection of the plug-in column 9 and the plug-in port 8, which not only plays a role in limiting the protective tube 1, but also facilitates the placement of the protective tube 1.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An MPP cable protection tube for facilitating the insertion of cables, comprising a protection tube (1), wherein a mounting through hole (13) is provided inside the protection tube (1), and a corrugated ring (2) is provided on the surface of the protection tube (1), and the corrugated ring (2) is provided in plurality; Features: Also includes: A sliding frame (4) is arranged on the upper and lower end surfaces inside the mounting through hole (13), and two sliding frames (4) are provided. A rotating groove (11) is provided inside the sliding frame (4), and a rotating column (12) is installed inside the rotating groove (11); A limiting frame (5) is arranged on the protection tube (1); a connecting frame (6) is arranged on the limiting frame (5); a through hole (7) is arranged inside the connecting frame (6); and the protection tube (1) is plug-connected to the through hole (7).

2. The MPP cable protection tube for facilitating the insertion of cables according to claim 1, characterized in that: A groove (3) is provided between the corrugated rings (2), and the limiting frame (5) is arranged inside the groove (3).

3. The MPP cable protection tube for facilitating the insertion of cables according to claim 2, characterized in that: Insertion ports (8) are provided on one end surface and the interior of the lower surface of the limiting frame (5), and six insertion ports (8) are provided.

4. The MPP cable protection tube for facilitating the insertion of cables according to claim 3 is characterized in that: The other side end surface and the upper surface of the limiting frame (5) are both provided with plug-in columns (9), and six of the plug-in columns (9) are provided.

5. The MPP cable protection tube for facilitating the insertion of cables according to claim 4, characterized in that: A clamping ring (10) is provided on the surface of the plug-in column (9), and the plug-in column (9) is plug-connected to the plug-in interface (8) via the clamping ring (10).

6. The MPP cable protection tube for facilitating the insertion of cables according to claim 5, characterized in that: A plurality of rotating columns (12) are provided, and the rotating columns (12) are rotatably connected to the inside of the rotating groove (11).

7. The MPP cable protection tube for facilitating the insertion of cables according to claim 6, characterized in that: A heat insulation layer (15) is provided inside the protection tube (1), an outer protective layer (16) is provided on the outer surface of the heat insulation layer (15), and an inner protective layer (14) is provided on the inner surface of the heat insulation layer (15).

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