Electric power tunnel pipe joint water stop structure

Abstract

The utility model discloses an electric power tunnel pipe joint water stop structure, which belongs to the technical field of electric power tunnel construction and comprises mutually spliced pipeline bodies, connector steel lantern rings arranged on bearing parts of the pipeline bodies and steel rings arranged on inserting parts of the pipeline bodies. In the embodiment of the utility model, the two adjacent sections of pipeline bodies are mutually matched through the bearing parts and the inserting parts of the two adjacent sections of pipeline bodies to realize splicing; a sunken part is formed in the steel ring, an opening of the sunken part faces the outer side of the pipeline body, and a sealing rubber ring is arranged in the sunken part; in the two mutually spliced pipeline bodies, after the inserting part of one pipeline body is close to the bearing part of the pipeline body at the other end, the bottom of the sealing rubber ring is connected with the concave part, and the top of the sealing rubber ring abuts against the inner side wall of the connector steel lantern ring. According to the electric power tunnel pipe joint water stop structure, the problem that leakage is prone to occurring at the splicing position of the pipe joint structures at the two adjacent ends of an existing electric power tunnel is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power tunnel construction, especially relates to a water stop structure of electric power tunnel pipe joint. BACKGROUND

[0002] Electric power tunnel is cable tunnel, which refers to a corridor or tunnel type structure for accommodating a large number of cables laid on cable support. In addition to protecting cables, cable tunnel can also make it convenient for people to check and maintain cables. The main construction methods of electric power tunnel are underground excavation construction, open cut construction and pipe jacking construction. Pipe jacking construction refers to the use of pipe jacking machine head to drill in one side and excavate in the other side. Then the electric power pipeline is pushed into the soil body through the pipe jacking cylinder. During the process of gradually pushing the pipeline into the soil body, the soil inside the pipeline is excavated to form an electric power tunnel.

[0003] Generally, in order to facilitate transportation, the electric power tunnel is made into a pipe joint structure of a specified length when it is shipped. After the pipe joint structure is transported to the site, it is assembled. However, there is still a risk of leakage at the joint between the two adjacent pipe joint structures, which makes it difficult to ensure the safety of the cables in the electric power tunnel. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art, the utility model provides a water stop structure of electric power tunnel pipe joint to solve the above problems.

[0005] The utility model adopts the technical scheme that a water stop structure of electric power tunnel pipe joint comprises pipe bodies that are spliced with each other, an interface steel sleeve ring arranged on a receiving part of the pipe body and a steel ring arranged on a plug-in part of the pipe body.

[0006] The steel ring is provided with a recessed part, and the opening of the recessed part faces the outer side of the pipe body. A sealing rubber ring is arranged in the recessed part.

[0007] In the two pipe bodies that are spliced with each other, after the plug-in part of one pipe body is close to the receiving part of the other pipe body, the bottom of the sealing rubber ring is connected with the recessed part, and the top of the sealing rubber ring abuts against the inner side wall of the interface steel sleeve ring.

[0008] It is worth noting that a grouting hole is arranged through the plug-in part, the steel ring is provided with a first through hole, the first through hole is in communication with the grouting hole, and the end of the interface steel sleeve ring extends to the position where the first through hole of the steel ring is arranged.

[0009] Preferably, the steel ring is provided with two recesses, and a second through hole is formed between the two recesses; a sealing slurry hole is formed in the insertion part, and the sealing slurry hole is in communication with the second through hole.

[0010] Optionally, a water-swelling rubber strip is arranged at the joint of the interface steel sleeve ring and the receiving part, and first ring ribs are arranged on both sides of the water-swelling rubber strip to clamp the water-swelling rubber strip.

[0011] Specifically, an anchoring rib is arranged in the receiving part, one end of the anchoring rib is connected with the inner side wall of the interface steel sleeve ring, and the other end of the anchoring rib extends to the side of the pipeline body away from the receiving part.

[0012] Specifically, an anchoring rib is arranged in the receiving part, one end of the anchoring rib is connected with the inner side wall of the interface steel sleeve ring, and the other end of the anchoring rib extends to the side of the pipeline body away from the receiving part.

[0013] Specifically, a pine wood gasket is arranged at the end of the receiving part, one end of the pine wood gasket is connected with the interface steel sleeve ring through polythionous sealing paste, and the other end of the pine wood gasket is connected with the receiving part through sealing glue.

[0014] The power tunnel pipe joint water stop structure has the advantages that the interface steel sleeve ring and the steel ring are arranged, the sealing rubber ring is arranged in the recess of the steel ring, cooperation is achieved between the sealing rubber ring and the interface steel sleeve ring and the steel ring, the water stop capacity of the splicing position is improved, the purpose of preventing seepage is achieved, and the safety of the cable in the power tunnel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 2 is a partial cross-sectional view of the power tunnel pipe joint water stop structure when two pipeline bodies are spliced in an embodiment of the utility model;

[0016] Figure 2 FIG. 4 is a partial cross-sectional view of one end of the pipeline body provided with the insertion part in an embodiment of the utility model;

[0017] Figure 3 FIG. 5 is a partial cross-sectional view of one end of the pipeline body provided with the receiving part in an embodiment of the utility model;

[0018] Figure 4 FIG. 6 is a structural schematic view of the steel ring in an embodiment of the utility model;

[0019] Figure 5 FIG. 7 is an enlarged schematic view of the dashed circle A in FIG. 6; Figure 1

[0020] Figure 6 FIG. 8 is an enlarged schematic view of the dashed circle B in FIG. 6.​Figure 1 enlarged schematic view of the dashed circle A;

[0021] In the figure: 1 pipe body; 11 water stop ring; 12 socket reinforcing rib; 13 spigot reinforcing rib; 14 pipe body ring rib; 2 receiving part; 21 interface steel collar; 22 water-swelling rubber strip; 23 first ring rib; 24 socket anchor rib; 3 spigot part; 31 steel ring; 311 recessed part; 312 first through hole; 313 second through hole; 314 sunken part; 32 sealing rubber ring; 33 grouting hole; 34 sealing grouting hole; 35 spigot anchor rib; 36 plain concrete pipe plug; 4 pine wood gasket; 41 polysulfide sealing paste; 42 sealing glue. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] As shown in Figures 1-6 , a power tunnel pipe joint water stop structure, comprising pipe bodies 1 that are spliced with each other, an interface steel collar 21 arranged at a receiving part 2 of the pipe body 1, and a steel ring 31 arranged at a spigot part 3 of the pipe body 1; in this embodiment, two adjacent pipe bodies 1 are spliced with each other by cooperating with their own receiving parts 2 and spigot parts 3.

[0024] The steel ring 31 is provided with a recessed part 311, and the opening of the recessed part 311 faces the outer side of the pipe body 1, and the recessed part 311 is provided with a sealing rubber ring 32;

[0025] In the two pipe bodies 1 that are spliced with each other, after the spigot part 3 of one pipe body 1 is close to the receiving part 2 of the other pipe body 1, the bottom of the sealing rubber ring 32 is connected with the recessed part 311, and the top of the sealing rubber ring 32 abuts against the inner side wall of the interface steel collar 21.

[0026] As shown in Figures 1-6 , in this embodiment, the outer side of the pipe body 1 is indicated by the outer side in the figure, and the inner side of the pipe body 1 is indicated by the inner side. In the power tunnel pipe joint water stop structure, by arranging the interface steel collar 21 and the steel ring 31, and arranging the sealing rubber ring 32 in the recessed part 311 of the steel ring 31, the sealing rubber ring 32 is used to cooperate with the interface steel collar 21 and the steel ring 31, so as to improve the water stop ability of the spliced part, achieve the purpose of preventing seepage, and further ensure the safety of the cable in the power tunnel.

[0027] It is worth noting that, as Figure 1As shown in the drawings, the spigot 3 is provided with a grouting hole 33 penetrating through the spigot 3, the grouting hole 33 is located between the sealing rubber ring 32 and the pipe body 1, the steel ring 31 is provided with a first penetrating hole 312, the first penetrating hole 312 is communicated with the grouting hole 33, and the end of the interface steel sleeve ring 21 extends to the position where the first penetrating hole 312 of the steel ring 31 is arranged. After the spigot 3 of the pipe body 1 provided with the steel ring 31 is inserted into the receiving part 2 of another pipe body 1, the cement mortar is injected into the pipe body 1 through the first penetrating hole 312 and the grouting hole 33 which are communicated, and the spigot 3 of the pipe body 1, the steel ring 31 and the interface steel sleeve ring 21 are connected together by the cement mortar, so that the splicing part of the two spliced pipe bodies 1 is wrapped in the cement mortar, thereby ensuring the anti-seepage ability between the two spliced pipe bodies 1. The end of the grouting hole 33 is provided with a concrete pipe plug 36. The outer wall of the grouting hole 33 is provided with a water stop ring 11 which is embedded into the wall of the pipe body 1, thereby enhancing the firmness of the grouting hole 33.

[0028] Preferably, as shown in the drawings, Figure 1 , 4 and 5, the steel ring 31 is provided with two recesses 311, and a second penetrating hole 313 is arranged between the two recesses 311; the spigot 3 is provided with a sealing grouting hole 34 which is communicated with the second penetrating hole 313. The steel ring 31 and the spigot 3 are connected together by grouting the second penetrating hole 313 and the sealing grouting hole 34. The end of the sealing grouting hole 34 is provided with a concrete pipe plug 36. The outer wall of the sealing grouting hole 34 is provided with a water stop ring 11 which is embedded into the wall of the pipe body 1, thereby enhancing the firmness of the sealing grouting hole 34.

[0029] As shown in the drawings, Figure 4 in this embodiment, the wall surface of the steel ring 31 close to the spigot 3 is provided with a sunken part 314, the shape of the sunken part 314 is complementary to the shape of the wall surface of the spigot 3, thereby improving the friction between the steel ring 31 and the spigot 3 and preventing the displacement of the steel ring 31 relative to the spigot 3.

[0030] Optionally, as shown in the drawings, Figure 6 the connection between the interface steel sleeve ring 21 and the receiving part 2 is provided with a water-swelling rubber strip 22, and the two sides of the water-swelling rubber strip 22 are provided with first ring ribs 23 for clamping the water-swelling rubber strip 22. By arranging the water-swelling rubber strip 22, the anti-seepage ability between the interface steel sleeve ring 21 and the receiving part 2 can be improved. By arranging the first ring ribs 23 to clamp the water-swelling rubber strip 22, the displacement of the water-swelling rubber strip 22 can be avoided.

[0031] Specifically, as shown in Figure 1 , 3 and 6, the socket anchoring rib 24 is arranged in the socket part 2, one end of the socket anchoring rib 24 is connected with the inner side wall of the interface steel collar 21, and the other end of the socket anchoring rib 24 extends to the side of the pipeline body 1 away from the socket part 2. By arranging the socket anchoring rib 24, the connection firmness between the interface steel collar 21 and the socket part 2 can be improved, so as to avoid the displacement of the interface steel collar 21. In the embodiment, the socket anchoring rib 24 extends obliquely in the pipeline body 1, and the angle between the socket anchoring rib 24 and the horizontal direction is 30°.

[0032] Preferably, as shown in Figure 1 , 2 and 5, the socket anchoring rib 24 is arranged in the socket part 2, one end of the socket anchoring rib 24 is connected with the inner side wall of the interface steel collar 21, and the other end of the socket anchoring rib 24 extends to the side of the pipeline body 1 away from the socket part 2. By arranging the socket anchoring rib 24, the connection firmness between the interface steel collar 21 and the socket part 2 can be improved, so as to avoid the displacement of the interface steel collar 21. In the embodiment, the socket anchoring rib 24 extends obliquely in the pipeline body 1, and the angle between the socket anchoring rib 24 and the horizontal direction is 30°.

[0033] Specifically, as shown in Figure 1 and 5 , the socket part 2 is provided with a pine wood gasket 4, one end of the pine wood gasket 4 is connected with the interface steel collar 21 through a polysulfide sealing paste 41, and the other end of the pine wood gasket 4 is connected with the socket part 2 through a sealing glue 42. The pine wood gasket 4 is used to fill the space between the mating surfaces of the socket part 2 and the splicing part 3 when they are spliced with each other, so that the socket part 2 and the splicing part 3 are connected more tightly. The polysulfide sealing paste 41 and the sealing glue 42 both play a role in preventing seepage.

[0034] It is worth noting that, as shown in Figure 2 and 3 , the pipeline body 1 is provided with a socket reinforcing rib 12 near the socket part 2 to improve the strength of the socket part 2, and the pipeline body 1 is provided with a socket reinforcing rib 13 near the splicing part 3 to improve the strength of the splicing part 3. In addition, a plurality of pipe body ring ribs 14 are arranged in the pipe wall of the pipeline body 1 along the circumferential direction of the pipeline body 1, so as to improve the overall strength of the pipeline body 1.

[0035] The embodiments of the present application are described in detail in combination with the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. An electric power tunnel pipe joint water stop structure, characterized by: The steel ring is provided with a recess, and the opening of the recess faces the outside of the pipeline body, and the recess is provided with a sealing rubber ring; The bottom of the sealing rubber ring is connected with the recess, and the top of the sealing rubber ring is abutted with the inner side wall of the interface steel ring after the splicing part of one pipeline body is close to the receiving part of the other pipeline body. A grouting hole is formed through the splicing part, the steel ring is provided with a first through hole, the first through hole is communicated with the grouting hole, and the end of the interface steel ring extends to the position where the first through hole is arranged on the steel ring.

2. The power tunnel pipe joint water stop structure according to claim 1, characterized in that: The steel ring is provided with two recesses, and a second through hole is formed between the two recesses; a sealing grout hole is formed in the splicing part, and the sealing grout hole is communicated with the second through hole.

3. The power tunnel pipe joint water stop structure according to claim 1, characterized in that: The connection part of the interface steel ring and the receiving part is provided with a water-swelling rubber strip, and the water-swelling rubber strip is clamped by first ring ribs arranged on both sides of the water-swelling rubber strip.

4. The power tunnel pipe joint water stop structure according to claim 1, characterized in that: The receiving part is provided with a receiving anchor rib, one end of the receiving anchor rib is connected with the inner side wall of the interface steel ring, and the other end of the receiving anchor rib extends to the side of the pipeline body away from the receiving part.

5. The power tunnel pipe joint water stop structure according to claim 1, characterized in that: The splicing part is provided with a splicing anchor rib, one end of the splicing anchor rib is connected with the inner side wall of the steel ring, and the other end of the splicing anchor rib extends to the side of the pipeline body away from the splicing part.

6. The power tunnel tube joint water stop structure according to claim 1, characterized in that: The end of the receiving part is provided with a pine wood gasket, one end of the pine wood gasket is connected with the interface steel ring through polythiourethane sealant, and the other end of the pine wood gasket is connected with the receiving part through sealing glue.

7. The power tunnel tube joint water stop structure according to claim 1, characterized in that: ​

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