Low-temperature frost crack prevention structure for cable protection pipe

Abstract

The utility model relates to the technical field of cable protection pipes, in particular to a low-temperature frost crack prevention structure for a cable protection pipe, which comprises a pipeline body, a cable body and a drainage part, the drainage part is arranged in the pipeline body, the cable body is arranged in the drainage part, and the drainage part is arranged in the pipeline body. Moisture on the surface of the cable body is removed through the drainage part. And the heat storage part is arranged between the drainage part and the inner wall of the pipeline and is used for preserving heat of the cable body. In the embodiment of the utility model, the drainage part is arranged in the pipeline body, the cable body is mounted in the embedded pipe in the drainage part, and the inner wall of the mounting cavity, which is attached to the cable body, of the embedded pipe is provided with the iron gauze; therefore, water on the surface of the cable body can penetrate through the iron gauze to enter the pisolite layer in the embedded pipe and then is discharged through the drainage pipe in a concentrated mode, and therefore the effect of protecting the cable body can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, in particular to a low-temperature freezing and cracking prevention structure for cable protection tubes. Background Art

[0002] As a device used for power transmission, cables are protected by a protective tube on the outside. However, due to the influence of weather and temperature, the protective tube often freezes and cracks, causing the cable inside to leak out, which can cause damage to the cable after long-term use.

[0003] According to a low-temperature resistant CPVC power cable protection tube disclosed in publication number CN220775286U, the patent provides low-temperature protection for the cable by installing a pressure-resistant thermal insulation mechanism, and specifically achieves the low-temperature resistance effect through a thermal insulation bin and a low-temperature resistant filler.

[0004] In the above patent, the structure of the insulation chamber and the anti-low-temperature filler can effectively fill and protect the outer wall of the cable. In actual use, if the temperature difference is large, moisture will appear on the outer wall of the cable. After the moisture soaks the insulation structure, it will affect the use of the cable. Utility Model Content

[0005] The utility model aims to solve the technical problem in the prior art that a large temperature difference between the inside and outside of a protection tube causes moisture on the outer wall of a cable, which affects the use of the cable, and thus proposes a low-temperature freezing cracking prevention structure for a cable protection tube.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A low temperature freezing cracking prevention structure for a cable protection pipe comprises a pipe body and a cable body, and also comprises:

[0008] A drainage part, wherein the drainage part is arranged inside the pipe body, and the cable body is arranged inside the drainage part, so as to remove moisture on the surface of the cable body through the drainage part;

[0009] The heat storage part is arranged between the drainage part and the inner wall of the pipeline, and is used for keeping the cable body warm.

[0010] In a feasible embodiment, the drainage portion includes:

[0011] An embedded pipe, the embedded pipe is arranged inside the drainage part, a first support column is arranged between the outer wall of the embedded pipe and the pipe body, the interior of the embedded pipe is hollow, an installation cavity is opened at the center of the embedded pipe, the cable body is arranged in the installation cavity, and a wire mesh is arranged on the inner wall of the installation cavity of the embedded pipe;

[0012] a pisolite layer, the pisolite layer being laid inside the embedded tube;

[0013] Drain pipes, at least three groups of which are connected and arranged at the bottom of the embedded pipe, and one end of each drain pipe passes through the pipe body;

[0014] The bent copper sheet is fixedly arranged above the installation cavity of the cable body, and the bent copper sheet is fitted with the cable body.

[0015] In a feasible embodiment, the outer wall of the pipe body is provided with a through groove communicating with the interior.

[0016] In a feasible embodiment, the heat storage unit includes:

[0017] A heat storage layer, the heat storage layer is filled between the embedded tubes on the inner wall of the pipeline body;

[0018] A convex lens sheet, wherein the convex lens sheet is fixedly disposed in the through groove;

[0019] A transparent plate is fixedly disposed in the through slot and is located above the through slot.

[0020] In a feasible embodiment, a second support column is provided between the bent copper sheet and the inner wall of the pipe body.

[0021] In a feasible embodiment, the outer wall of the pipe body is coated with a thermal insulation coating except for the through groove, and connecting pipes are provided at both ends of the pipe body.

[0022] The beneficial effects of the utility model are:

[0023] In the embodiment of the utility model, a drainage part is arranged in the pipe body, wherein the cable body is installed in the embedded pipe in the drainage part, and a wire mesh is arranged on the inner wall of the installation cavity where the embedded pipe and the cable body are in contact, so that the moisture on the surface of the cable body can pass through the wire mesh into the pebbles layer in the embedded pipe and then be discharged from the drainage pipe, thereby achieving the effect of protecting the cable body;

[0024] In addition, the heat storage part adopts a convex lens structure, which can focus sunlight to irradiate the heat storage layer and store the temperature. Then, through the embedded tube and the bent copper sheet, the cable body can be effectively insulated, thereby achieving the effect of preventing low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a low-temperature freezing and cracking prevention structure for a cable protection pipe provided in an embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the tube body;

[0027] Figure 3 This is a schematic diagram of the partial decomposition structure of the embedded pipe in the drainage part.

[0028] The markings in the figure are as follows:

[0029] 1. Pipe body; 11. Through groove;

[0030] 2. Drainage part; 21. Embedded pipe; 22. Pebble layer; 23. Wire mesh; 24. Drainage pipe; 25. Bending copper sheet; 26. First support column; 27. Second support column;

[0031] 3. heat storage part; 31. heat storage layer; 32. convex lens sheet; 33. transparent plate;

[0032] 4. Thermal insulation coating; 5. Connecting pipe; 6. Cable body. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] Example

[0038] Reference Figures 1 to 3 In order to solve the technical problem that the large temperature difference between the inside and outside of the protection tube causes moisture on the outer wall of the cable, which affects the use of the cable, the utility model provides a low-temperature frost cracking prevention structure for a cable protection tube, including: a tube body 1, a cable body 6, a drainage part 2 and a heat storage part 3. The drainage part 2 is arranged inside the tube body 1, and the cable body 6 is arranged inside the drainage part 2, so that the cable body 6 is protected by wrapping it with the tube body 1 and the drainage part 2, wherein the drainage part 2 can discharge the moisture generated on the cable surface due to the temperature difference, so as to achieve the effect of protecting the cable body 6. The heat storage part 3 is arranged between the drainage part 2 and the inner wall of the tube. Through the filling design of the heat storage part 3, the drainage part 2 and the cable part can be insulated to prevent cracking in a low temperature environment.

[0039] For further information, please refer to Figure 1 and Figure 3As shown, in this embodiment, the drainage part 2 includes: an embedded tube 21, a pebbles layer 22, a drainage tube 24 and a bent copper sheet 25. The embedded tube 21 is arranged inside the drainage part 2, and a first support column 26 is arranged between the outer wall of the embedded tube 21 and the pipe body 1, and the embedded tube 21 can be fixed by the design of the support column; the interior of the embedded tube 21 is hollow, and the pebbles layer 22 is laid inside the embedded tube 21, wherein the pebbles layer 22 is formed by piling up pebbles, and there are gaps inside the pebble stones after pebble stones are piled up for water to flow, and the pebbles material has a good heat storage effect, which can effectively insulate the cable body 6; an installation cavity is opened at the center of the embedded tube 21, and the cable body 6 is arranged in the installation cavity, and a wire mesh 23 is arranged on the inner wall of the installation cavity of the embedded tube 21, and the wire mesh 23 is designed to fit with the cable body 6, so that the water generated on the surface of the cable body 6 can penetrate into the pebbles layer 22 through the wire mesh 23 to facilitate discharge. At least three groups of drain pipes 24 are connected and arranged at the bottom of the embedded tube 21, and one end of the drain pipe 24 runs through the pipeline body 1. The drain pipe 24 can discharge the moisture in the gap of the pisolite layer 22 to the outside of the pipeline body 1. The bent copper sheet 25 is fixedly arranged above the installation cavity of the cable body 6. The bent copper sheet 25 is fitted with the cable body 6. By fitting with the cable body 6, the heat stored by the heat storage part 3 can be conducted by the bent copper sheet 25, thereby achieving the effect of heat preservation of the cable body 6. It should be supplemented that a second support column 27 is provided between the bent copper sheet 25 and the inner wall of the pipeline body 1 to support the bent copper sheet 25 through the second support column 27. In this embodiment, the cable body 6 is installed in the installation cavity at the center of the embedded tube 21. Through the wire mesh 23 provided in the installation cavity, the moisture generated on the surface of the cable body 6 can enter the inside of the embedded tube 21 through the holes on the wire mesh 23, and is concentrated to the drain pipe 24 through the gaps in the pisolite layer 22 and discharged to the outside, thereby achieving the effect of protecting the cable body 6.

[0040] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, the heat storage part 3 includes: a heat storage layer 31, a convex lens sheet 32 ​​and a transparent plate 33. The heat storage layer 31 is filled between the embedded tubes 21 on the inner wall of the pipeline body 1, wherein the heat storage layer 31 is made of floor heating stone material, which can effectively store and conduct temperature. It should be supplemented that the outer wall of the pipeline body 1 is provided with a through groove 11 connected to the interior, and the convex lens sheet 32 ​​is fixedly arranged in the through groove 11, so as to realize the heating of the internal heat storage layer 31 by receiving sunlight through the convex lens sheet 32. The transparent plate 33 is fixedly arranged in the through groove 11, and the transparent plate 33 is located above the through groove 11. This design is used to protect the convex lens sheet 32 ​​from damage.

[0041] It should be separately explained that the heat storage layer 31 is located on the outer wall of the embedded tube 21 and the outer wall of the bent copper sheet 25, wherein the bent copper sheet 25 is made of copper, and in order to reduce costs, the embedded tube 21 is made of aluminum metal. Both have very good thermal conductivity and can effectively conduct the temperature in the heat storage layer 31 to the cable body 6 to prevent low temperature from damaging the cable body 6.

[0042] In a feasible embodiment, in order to protect the outer wall of the pipe body 1 and make the low temperature protection effect of the device more outstanding, the outer wall of the pipe body 1 is coated with a thermal insulation coating 4 except for the through groove 11, wherein the thermal insulation coating 4 is a heat-insulating paint.

[0043] In a feasible embodiment, in order to adapt to cable bodies 6 of different lengths, connecting tubes 5 are provided at both ends of the pipe body 1 to connect multiple pipe bodies 1 by plugging in the connecting tubes 5, thereby adapting to cable bodies 6 of different lengths.

[0044] How it works

[0045] In the present invention, the cable body 6 is installed inside the pipe body 1 and is in the installation cavity of the embedded pipe 21. In actual use, after the pipe body 1 is exposed to sunlight during the day, the sunlight will directly irradiate the heat storage layer 31 inside the pipe body 1 through the transparent plate 33 and the convex lens sheet 32, and the heat storage layer 31 is formed by compactly stacked floor heating stones. The sunlight can heat the heat storage layer 31 after being focused by the convex lens sheet 32, and the heat storage layer 31 can insulate and heat the cable body 6 through the bent copper sheet 25, the embedded pipe 21 and the pea stone layer 22 inside it, thereby preventing the cable from freezing and cracking.

[0046] If moisture appears on the surface of the cable body 6 due to temperature difference, the moisture can directly enter the pebbles layer 22 through the wire mesh 23, and then be concentrated in the drain pipe 24 through the gaps in the pebbles layer 22 for discharge, thereby achieving the effect of protecting the cable body 6.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-temperature freezing cracking prevention structure for a cable protection pipe, comprising a pipe body (1) and a cable body (6), characterized in that: Also includes: A drainage portion (2), the drainage portion (2) being arranged inside the pipe body (1), and the cable body (6) being arranged inside the drainage portion (2), so as to remove moisture on the surface of the cable body (6) through the drainage portion (2); A heat storage part (3), the heat storage part (3) being arranged between the drainage part (2) and the inner wall of the pipe, and being used for keeping the cable body (6) warm.

2. The low-temperature freezing cracking prevention structure for a cable protection tube according to claim 1 is characterized in that: The drainage part (2) comprises: An embedded tube (21), the embedded tube (21) being arranged inside the drainage portion (2), a first support column (26) being arranged between the outer wall of the embedded tube (21) and the pipe body (1), the interior of the embedded tube (21) being hollow, a mounting cavity being provided at the center of the embedded tube (21), the cable body (6) being arranged in the mounting cavity, and a wire mesh (23) being provided on the inner wall of the mounting cavity of the embedded tube (21); a pisolite layer (22), the pisolite layer (22) being laid inside the embedded tube (21); Drain pipes (24), at least three groups of the drain pipes (24) are connected and arranged at the bottom of the embedded pipe (21), and one end of the drain pipe (24) passes through the pipe body (1); A bent copper sheet (25), wherein the bent copper sheet (25) is fixedly disposed above the installation cavity of the cable body (6), and the bent copper sheet (25) is in close contact with the cable body (6).

3. The low temperature freezing cracking prevention structure for a cable protection tube according to claim 2, characterized in that: The outer wall of the pipe body (1) is provided with a through groove (11) communicating with the interior.

4. The low-temperature freezing cracking prevention structure for a cable protection tube according to claim 3 is characterized in that: The heat storage part (3) comprises: A heat storage layer (31), the heat storage layer (31) being filled between the embedded pipes (21) on the inner wall of the pipeline body (1); A convex lens sheet (32), the convex lens sheet (32) being fixedly disposed in the through groove (11); A transparent plate (33), wherein the transparent plate (33) is fixedly disposed in the through slot (11), and the transparent plate (33) is located above the through slot (11).

5. The cable protection tube anti-low temperature cracking structure according to claim 2, characterized in that A second support column (27) is provided between the bent copper sheet (25) and the inner wall of the pipe body (1).

6. The low-temperature freezing cracking prevention structure for a cable protection tube according to claim 3, characterized in that: The outer wall of the pipe body (1) is coated with a thermal insulation coating (4) except for the through groove (11), and connecting pipes (5) are provided at both ends of the pipe body (1).

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