MPP cable protection pipe with good sealing performance

Abstract

The utility model discloses an MPP cable protection tube with good sealing performance, and relates to the technical field of MPP cable protection tubes, the MPP cable protection tube comprises protection tube bodies, a middle connection tube and a sealing assembly, a flange plate is fixed on the outer side of one end of each protection tube body, the middle connection tube is arranged between two adjacent protection tube bodies, and the sealing assembly is arranged on the middle connection tube. Outer protective pipes are integrally fixed to the outer sides of the two sides of the middle connecting pipe, a sealing assembly is installed on the inner side of the middle connecting pipe, and the sealing assembly comprises an embedded inner pipe, a sealing ring and a glue storage bag. According to the MPP cable protection pipe with the good sealing performance, the embedded inner pipe and the outer protection pipe of the middle connection pipe are located on the inner side and the outer side of the protection pipe body respectively and can play a dual-sealing role, and meanwhile the outer side face of the sealing ring is tightly attached to the inner side face of the protection pipe body so that the sealing effect can be enhanced; overflow of the glue liquid in the glue storage bag can adhere the joint of the middle connecting pipe and the protective pipe body, the connecting firmness is improved, looseness is prevented, and meanwhile the glue liquid can be fully sealed after being solidified.

Description

A type of MPP cable protection pipe with good sealing performance Technical Field

[0001] This utility model relates to the field of MPP cable protection pipe technology, specifically to an MPP cable protection pipe with good sealing performance. Background Technology

[0002] MPP cable protection pipe, also known as MPP power pipe, is made of modified polypropylene as the main raw material. It is used to install pipes and cables in special areas such as roads, railways, buildings, and riverbeds without the need for extensive mud excavation, digging, or road damage. It has the characteristics of high temperature resistance and external pressure resistance, and is suitable for exhaust pipes of high voltage transmission cables above 10KV.

[0003] For example, the utility model application with application number 202420257539.4 discloses a heat-resistant MPP cable protection pipe. The MPP cable protection pipes similar to the above application still have the following shortcomings: although it is convenient to connect and install the two pipes, the sealing during the connection process is insufficient, and rainwater is easy to enter and corrode the internal cable during subsequent use. Summary of the Invention

[0004] The purpose of this invention is to provide an MPP cable protection pipe with good sealing performance to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an MPP cable protection pipe with good sealing performance, comprising a protection pipe body, an intermediate connecting pipe, and a sealing assembly. A flange plate is fixed to the outer side of one end of the protection pipe body. An intermediate connecting pipe is installed between two adjacent protection pipe bodies, and an outer protective pipe is integrally fixed to both outer sides of the intermediate connecting pipe. A sealing assembly is installed on the inner side of the intermediate connecting pipe, and the sealing assembly includes an inner fitting, a sealing ring, and an adhesive storage bag. An inner fitting is integrally fixed to both inner sides of the intermediate connecting pipe, and a sealing ring is embedded in the middle of the outer wall of the inner fitting. An adhesive storage bag is provided between the outer protective pipe and the inner fitting. The outer protective pipe and the inner fitting are located on the outer and inner sides of the protection pipe body, respectively.

[0006] Furthermore, the inner wall of the protective tube is bonded with a thickened layer, and a reinforcing partition strip is fixed in the middle of the interior of the protective tube.

[0007] Furthermore, the reinforcing separator has a cross-shaped structure, and an auxiliary traction mechanism is installed on the side of the reinforcing separator near the inlet and outlet of the protective pipe.

[0008] Furthermore, the auxiliary traction mechanism includes a reinforcing strip, a spring, and a limiting block. The reinforcing strip is fixed to the outer side of the center of the reinforcing strip, and the outer side of the reinforcing strip is elastically connected to the limiting block by a spring.

[0009] Furthermore, the auxiliary traction mechanism also includes traction rollers, and four limiting blocks are provided. The traction rollers are rotatably arranged inside the limiting blocks via rotating shafts, and the traction rollers are evenly distributed among each other.

[0010] Furthermore, an outer flange is fixed to the outside of the outer protective tube, and the outer flange is bolted to the flange plate. At the same time, an anti-corrosion coating is provided on the outer side of the protective tube body.

[0011] Furthermore, the cross-section of the fitted inner tube is L-shaped, and the outer surfaces of the fitted inner tube and the sealing ring are tightly fitted with the inner surface of the protective tube body.

[0012] Furthermore, the glue storage bag has a ring-shaped structure, and the glue storage bag is adhered to both sides of the central connecting pipe.

[0013] This utility model provides an MPP cable protection tube with good sealing performance, which has the following beneficial effects:

[0014] This utility model is equipped with an intermediate connecting pipe and a sealing assembly. The inner tube and outer protective tube of the intermediate connecting pipe are located on the inner and outer sides of the protective tube body, respectively, which can play a double sealing role. At the same time, the outer side of the sealing ring is in close contact with the inner side of the protective tube body to enhance the sealing effect. During assembly, the end face of the protective tube body squeezes the annular glue storage bag between the outer protective tube and the inner tube of the intermediate connecting pipe, which can cause the glue storage bag to break and the glue to overflow. The overflow of glue can bond the connection between the intermediate connecting pipe and the protective tube body, improve the connection firmness and prevent loosening. At the same time, after the glue solidifies, it can fully seal and facilitate use.

[0015] This utility model is equipped with a reinforcing partition strip and an auxiliary traction mechanism. The thickened layer and the reinforcing partition strip can enhance the structural strength of the protective tube to a certain extent. The reinforcing partition strip with a cross-shaped structure can divide the internal cavity of the protective tube into four spaces, which facilitates the classification and setting of different cables. The limiting block can approach the inner wall of the protective tube under the elastic action of the spring, thereby flexibly limiting the cable in the corresponding space of the protective tube. The limiting block has a traction roller installed inside by rotating through a shaft, so that the three equidistant traction rollers can limit the cable without affecting the cable pulling. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the assembled half-section structure of an MPP cable protection pipe with good sealing performance according to this utility model.

[0017] Figure 2 is a schematic diagram of the external structure of an MPP cable protection tube with good sealing performance after separation according to this utility model;

[0018] Figure 3 is a schematic diagram of the half-section structure of the intermediate connector of an MPP cable protection pipe with good sealing performance according to this utility model.

[0019] Figure 4 is a schematic diagram of the internal structure of the protective tube body of an MPP cable protection tube with good sealing performance according to this utility model.

[0020] Figure 5 is a front view of the protective tube body of the MPP cable protection tube with good sealing performance according to this utility model.

[0021] In the diagram: 1. Protective pipe body; 2. Thickened layer; 3. Reinforcing separator; 4. Auxiliary traction mechanism; 401. Reinforcing strip; 402. Spring; 403. Limiting block; 404. Traction roller; 5. Flange plate; 6. Intermediate connecting pipe; 7. Outer protective pipe; 8. Outer flange; 9. Sealing assembly; 901. Fitting inner pipe; 902. Sealing ring; 903. Glue storage bag. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] As shown in Figures 1 and 2, a well-sealed MPP cable protection pipe includes a protection pipe body 1, an intermediate connecting pipe 6, and a sealing assembly 9. The inner wall of the protection pipe body 1 is bonded with a thickened layer 2, and a reinforcing partition strip 3 is fixed in the middle of the inner wall of the protection pipe body 1. A flange plate 5 is fixed to the outer side of one end of the protection pipe body 1. An intermediate connecting pipe 6 is installed between two adjacent protection pipe bodies 1, and an outer protective pipe 7 is integrally fixed to the outer sides of both sides of the intermediate connecting pipe 6. An outer flange 8 is fixed to the outer side of the outer protective pipe 7, and the outer flange 8 is bolted to the flange plate 5. Meanwhile, the protection pipe... The outer surface of the pipe body 1 is provided with an anti-corrosion coating; the thickened layer 2 and the reinforcing partition strip 3 can enhance the structural strength of the protective pipe body 1 to a certain extent. The reinforcing partition strip 3, which is in the shape of a cross, can divide the internal cavity of the protective pipe body 1 into four spaces, so as to facilitate the classification and setting of different cables. The reinforcing partition strip 3 has a certain toughness and can deform appropriately without breaking. Two adjacent protective pipe bodies 1 are connected by an intermediate connecting pipe 6. During the connection process, the outer flange 8 of the intermediate connecting pipe 6 can be docked and fixed with the flange plate 5 of the protective pipe body 1.

[0024] As shown in Figures 4 and 5, the reinforcing separator 3 has a cross-shaped structure, and an auxiliary traction mechanism 4 is installed on the side of the reinforcing separator 3 near the inlet and outlet of the protective pipe body 1. The auxiliary traction mechanism 4 includes a reinforcing strip 401, a spring 402, and a limiting block 403. The reinforcing strip 401 is fixed on the outer side of the center of the reinforcing separator 3, and the limiting block 403 is elastically connected to the outer side of the reinforcing strip 401 through the spring 402. The auxiliary traction mechanism 4 also includes a traction roller 404. There are four limiting blocks 403, and the traction rollers 404 are rotatably arranged inside the limiting blocks 403 through a rotating shaft. The traction rollers 404 are evenly distributed. Under the elastic action of the spring 402, the limiting blocks 403 can approach the inner wall of the protective pipe body 1, thereby flexibly limiting the cable in the corresponding space of the protective pipe body 1. The traction rollers 404 are rotatably arranged inside the limiting blocks 403 through a rotating shaft, so that the three traction rollers 404, which are evenly distributed, can limit the cable without affecting the cable's pulling and traction.

[0025] As shown in Figures 1 and 3, a sealing assembly 9 is installed on the inner side of the intermediate connecting pipe 6. The sealing assembly 9 includes an inner fitting tube 901, a sealing ring 902, and an adhesive storage bag 903. The inner fitting tubes 901 are integrally fixed to the inner sides of both sides of the intermediate connecting pipe 6. A sealing ring 902 is embedded in the middle of the outer wall of the inner fitting tube 901. An adhesive storage bag 903 is placed between the outer protective pipe 7 and the inner fitting tube 901. The outer protective pipe 7 and the inner fitting tube 901 are located on the outer and inner sides of the protective pipe body 1, respectively. The cross-section of the inner fitting tube 901 is L-shaped. The outer surfaces of the inner fitting tube 901 and the sealing ring 902 are tightly fitted to the inner surface of the protective pipe body 1. The adhesive storage bag 903 has a ring-shaped structure. 903 is bonded to both sides of the intermediate connecting pipe 6; during the assembly of the intermediate connecting pipe 6 and the protective pipe body 1, the inner tube 901 and the outer protective tube 7 are located on the inner and outer sides of the protective pipe body 1 respectively, which can play a double sealing role. At the same time, the outer side of the sealing ring 902 is close to the inner side of the protective pipe body 1, which can enhance the sealing effect. During assembly, the end face of the protective pipe body 1 squeezes the annular glue storage bag 903 between the outer protective tube 7 and the inner tube 901 on the side of the intermediate connecting pipe 6, which can cause the glue storage bag 903 to break and the glue to overflow. The overflow of the glue can bond the connection between the intermediate connecting pipe 6 and the protective pipe body 1, improve the connection firmness and prevent loosening. At the same time, after the glue solidifies, it can fully seal and facilitate use.

[0026] In summary, as shown in Figures 1-5, this well-sealed MPP cable protection pipe allows two adjacent protection pipe bodies 1 to be connected via an intermediate connecting pipe 6. During the connection process, the outer flange 8 of the intermediate connecting pipe 6 can be mated and fixed with the flange plate 5 of the protection pipe body 1. At this time, the inner tube 901 and the outer protective tube 7 are located on the inner and outer sides of the protection pipe body 1, respectively, which can play a double sealing role. At the same time, the outer side of the sealing ring 902 is close to the inner side of the protection pipe body 1, which can enhance the sealing effect. Furthermore, during assembly, the end face of the protection pipe body 1 squeezes the annular glue storage bag 903 between the outer protective tube 7 and the inner tube 901 on the side of the intermediate connecting pipe 6, which can cause the glue storage bag 903 to break and overflow the glue. The overflow of the glue can bond the connection between the intermediate connecting pipe 6 and the protection pipe body 1, improve the connection firmness and prevent loosening. At the same time, the glue can fully seal after solidification.

[0027] During use, the reinforced partition strip 3, which has a cross-shaped structure, divides the internal cavity of the protective tube body 1 into four spaces, making it convenient to classify and set different cables. At this time, the limiting block 403 can approach the inner wall of the protective tube body 1 under the elastic action of the spring 402, thereby flexibly limiting the cable in the corresponding space of the protective tube body 1. The limiting block 403 has a traction roller 404 inside which is rotatably set through a rotating shaft, so that the three traction rollers 404, which are evenly distributed, can limit the cable without affecting the cable's pulling and traction. The thickened layer 2 and the reinforced partition strip 3 can enhance the structural strength of the protective tube body 1 to a certain extent. The reinforced partition strip 3 has a certain toughness and can deform appropriately without breaking. In this way, the use process of the MPP cable protection tube with good sealing performance is completed.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A well-sealed MPP cable protection pipe, comprising a protection pipe body (1), an intermediate connecting pipe (6), and a sealing assembly (9), characterized in that, A flange plate (5) is fixed to the outer side of one end of the protective pipe body (1). An intermediate connecting pipe (6) is installed between two adjacent protective pipe bodies (1). An outer protective pipe (7) is integrally fixed to both sides of the intermediate connecting pipe (6). A sealing component (9) is installed on the inner side of the intermediate connecting pipe (6). The sealing component (9) includes an inner fitting pipe (901), a sealing ring (902), and a glue storage bag (903). An inner fitting pipe (901) is integrally fixed to both sides of the intermediate connecting pipe (6). A sealing ring (902) is embedded in the middle of the outer wall of the inner fitting pipe (901). A glue storage bag (903) is provided between the outer protective pipe (7) and the inner fitting pipe (901). The outer protective pipe (7) and the inner fitting pipe (901) are located on the outer side and the inner side of the protective pipe body (1), respectively.

2. The MPP cable protection pipe with good sealing performance according to claim 1, characterized in that, The inner wall of the protective tube body (1) is bonded with a thickened layer (2), and a reinforcing partition strip (3) is fixed in the middle of the interior of the protective tube body (1).

3. The MPP cable protection pipe with good sealing performance according to claim 2, characterized in that, The reinforcing separator (3) has a cross-shaped structure, and an auxiliary traction mechanism (4) is installed on the side of the reinforcing separator (3) near the inlet and outlet of the protective pipe body (1).

4. The MPP cable protection pipe with good sealing property according to claim 3, characterized in that, The auxiliary traction mechanism (4) includes a reinforcing strip (401), a spring (402) and a limiting block (403). The reinforcing strip (3) is fixed with a reinforcing strip (401) on the outer side of its center, and the outer side of the reinforcing strip (401) is elastically connected to the limiting block (403) by the spring (402).

5. The MPP cable protection pipe with good sealing performance according to claim 4, characterized in that, The auxiliary traction mechanism (4) also includes traction rollers (404). There are four limiting blocks (403), and the traction rollers (404) are rotatably arranged inside the limiting blocks (403) via rotating shafts. The traction rollers (404) are evenly distributed.

6. The MPP cable protection pipe with good sealing performance according to claim 1, characterized in that, The outer flange (8) is fixed to the outside of the outer protective tube (7), and the outer flange (8) is bolted to the flange plate (5). At the same time, the outer side of the protective tube body (1) is provided with an anti-corrosion coating.

7. The MPP cable protection pipe with good sealing performance according to claim 1, characterized in that, The cross-section of the inner tube (901) is "L" shaped, and the outer surfaces of the inner tube (901) and the sealing ring (902) are closely fitted with the inner surface of the protective tube body (1).

8. The MPP cable protection pipe with good sealing performance according to claim 1, characterized in that, The glue storage bag (903) has a ring-shaped structure and is bonded to both sides of the intermediate connecting pipe (6).

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