Loss-prevention sealing device for power pipeline

Abstract

The invention belongs to the technical field of power pipelines, and particularly discloses a power pipeline damage prevention sealing device which comprises a pipeline body, an overhaul groove is formed in the top of the pipeline body, two symmetrically-distributed connecting blocks are fixedly connected to the inner wall of the overhaul groove, and a cover plate is arranged at the top of the pipeline body. A connecting screw rod is arranged on the surface of the cover plate; by arranging the connecting assembly, a sealing air bag can be automatically bulged to fill and wrap a cable in the connecting process of the two pipeline bodies, good sealing is achieved, meanwhile, the cross section of a connecting gap between a first connecting ring and a second connecting ring is distributed in a Z shape through mutual cooperation of a connecting groove and a sliding groove, the water seepage difficulty is increased, and the sealing effect is improved. The sealing effect on the connecting part is further improved, the sealing protection on the cable can be better realized by matching with the bulged sealing air bag, the operation is simple and convenient, and the installation efficiency can be effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electric pipelines, and specifically discloses an anti-damage sealing device for electric pipelines. Background Art

[0002] At present, most power cables are installed underground. The power cables are installed in cable ducts extending horizontally below the ground. The cable ducts are formed by connecting and installing multiple power ducts of the same specifications. Most power ducts are hollow cylindrical structures. Generally, the length of power ducts is fixed. The length required for construction is much longer than the length of a section of power duct. During construction, the power ducts are assembled and spliced ​​for use. In the prior art, the connection operation of the two sections of ducts is relatively cumbersome, time-consuming and labor-intensive, affecting the installation efficiency. At the same time, the sealing of the connection between the two sections of ducts is insufficient. If they are buried underground for a long time, groundwater can easily penetrate into the power duct and cause damage to the cable.

[0003] After searching, a Chinese patent discloses a power pipeline connection device (publication number CN217741274U). In this patented technology, the inner wall of the annular rubber block expands and fits onto the outer surface of the power pipeline a to fix the power pipeline a and the power pipeline b while eliminating the connection gap between the power pipeline a and the annular rubber block, and seals the connection between the power pipeline a and the power pipeline b to prevent water from penetrating into the power pipeline a and the power pipeline b to damage the cables therein, effectively improving the protection of the cables. However, the installation implementation method is relatively cumbersome. Therefore, a person skilled in the art provides a power pipeline anti-damage sealing device to solve the problems raised in the above background technology. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an anti-damage sealing device for electric pipelines to solve the problem that the installation implementation method of the prior art is relatively complicated.

[0005] To achieve the above purpose, the present invention provides an anti-damage sealing device for electric pipelines, comprising a pipeline body, a maintenance groove is provided on the top of the pipeline body, two symmetrically distributed connection blocks are fixedly connected to the inner wall of the maintenance groove, a cover plate is provided on the top of the pipeline body, a connection screw is provided on the surface of the cover plate, the lower end of the connection screw passes through the cover plate and is threadedly connected to the inner wall of the connection block, an auxiliary component is provided on the surface of the pipeline body, a connection component is provided inside the pipeline body, and two pipeline bodies are butt-jointed through the connection component; Among them, the connecting assembly includes a first connecting ring and a second connecting ring fixedly connected to the inner wall of the pipe body, the first connecting ring and the second connecting ring are symmetrically distributed, and the opposite ends of the first connecting ring and the second connecting ring both penetrate the pipe body, a connecting groove is provided on the inner side of the first connecting ring, and a sliding groove is provided on the surface of the second connecting ring, and the end of the second connecting ring with the sliding groove forms a docking part, and the outer diameter of the docking part is equal to the inner diameter of the connecting groove.

[0006] In the above technical solution, preferably, an air storage cavity is opened inside the first connecting ring and the second connecting ring, the inner wall of the air storage cavity is slidably connected with an extrusion ring, one side of the extrusion ring is fixedly connected with a spring, the other end of the spring is fixedly connected to the inner wall of the air storage cavity, and the space between the side of the extrusion ring close to the spring and the air storage cavity is filled with inert gas.

[0007] In the above technical solution, preferably, a sealing airbag is embedded and installed on the inner side of the first connecting ring and the second connecting ring, and the surface of the sealing airbag is connected with evenly distributed conduits, and the other end of the conduit is connected to the air storage cavity.

[0008] In the above technical solution, preferably, the inner wall of the connecting groove is slidably connected with evenly distributed trigger plates, the surface of the trigger plate is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected to the surface of the adjacent extrusion ring.

[0009] In the above technical solution, preferably, the surface of the second connecting ring is provided with a slip ring slidably connected to the inner wall of the slide groove, the surface of the slip ring is fixedly connected to a mounting rod, and the other end of the mounting rod is fixedly connected to the surface of the adjacent extrusion ring.

[0010] In the above technical solution, preferably, the auxiliary component includes a connecting shell fixedly connected to the surface of the pipe body, the inner wall of the connecting shell is fixedly connected with evenly distributed reinforcing plates, the surface of the reinforcing plates is provided with evenly distributed through holes, and the surface of the connecting shell is provided with two groups of symmetrically distributed filter holes.

[0011] In the above technical solution, preferably, the bottom of the connecting shell is connected to a mounting box, and the surface of the mounting box is provided with evenly distributed drainage holes.

[0012] In the above technical solution, preferably, the auxiliary component also includes a plurality of support blocks fixedly connected to the inner wall of the pipe body and evenly distributed, the cross-section of the support block is arc-shaped, and the top of the support block is provided with evenly distributed grooves.

[0013] In the above technical solution, preferably, a heat exchange fin is embedded and installed on the outer side of the support block, a heat exchange plate is fixedly connected to the surface of the heat exchange fin, and the other end of the heat exchange plate extends to the inside of the installation box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting up a connecting component, a sealing airbag can be automatically inflated to fill and wrap the cable during the connection of the two pipe bodies to achieve good sealing. At the same time, the mutual cooperation of the connecting groove and the sliding groove makes the cross-sectional shape of the connecting gap between the first connecting ring and the second connecting ring present a Z-shaped distribution, which increases the difficulty of water seepage and further improves the sealing effect of the connection. The inflated sealing airbag can better achieve sealing protection for the cable, and the simple operation can effectively improve the installation efficiency.

[0015] By setting up auxiliary components, a low-pressure area can be actively formed on the outside of the pipe body, so that the low-pressure area can be used to collect water and guide the water flow into the interior of the connecting shell. This setting method can reduce the impact of water in the soil on the connecting gap of the pipe body. At the same time, the water flow through the inside of the connecting shell can be used to cool the heat generated during the operation of the cable, providing a good working environment for the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the auxiliary components of the present invention; Figure 4 Schematic diagram of separation of the cover plate of the present invention; Figure 5 It is a schematic diagram of the connection between the connection assembly of the present invention and the pipeline body; Figure 6 It is a schematic diagram of the distribution of the first connecting ring, the connecting groove and the trigger plate of the present invention; Figure 7 It is a schematic diagram of the connection between the slip ring and the second connecting ring of the present invention.

[0017] In the figure: 1. pipeline body; 101. cover plate; 102. connecting screw; 103. connecting block; 2. connecting assembly; 201. first connecting ring; 202. connecting groove; 203. connecting rod; 204. trigger plate; 205. air storage chamber; 206. conduit; 207. spring; 208. extrusion ring; 209. sealing airbag; 210. second connecting ring; 211. slip ring; 212. mounting rod; 3. auxiliary assembly; 301. supporting block; 302. groove; 303. heat exchange fin; 304. heat exchange plate; 305. connecting shell; 306. mounting box; 307. reinforcing plate; 308. filter hole; 309. through hole. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] like Figure 1-Figure 7 The power pipeline anti-damage sealing device shown comprises a pipeline body 1, a maintenance groove is provided on the top of the pipeline body 1, two symmetrically distributed connection blocks 103 are fixedly connected to the inner wall of the maintenance groove, a cover plate 101 is provided on the top of the pipeline body 1, a connection screw 102 is provided on the surface of the cover plate 101, the lower end of the connection screw 102 passes through the cover plate 101 and is threadedly connected to the inner wall of the connection block 103, an auxiliary component 3 is provided on the surface of the pipeline body 1, a connection component 2 is provided inside the pipeline body 1, and two pipeline bodies 1 are butt-jointed via the connection component 2; Among them, the connecting component 2 includes a first connecting ring 201 and a second connecting ring 210 fixedly connected to the inner wall of the pipe body 1, the first connecting ring 201 and the second connecting ring 210 are symmetrically distributed, and the opposite ends of the first connecting ring 201 and the second connecting ring 210 both pass through the pipe body 1, a connecting groove 202 is opened on the inner side of the first connecting ring 201, and a sliding groove is opened on the surface of the second connecting ring 210. The end of the second connecting ring 210 with the sliding groove forms a docking portion, and the outer diameter of the docking portion is equal to the inner diameter of the connecting groove 202.

[0021] The cover plate 101 can be removed by disassembling the connecting screw 102 to facilitate the maintenance and repair of the cable at a later time.

[0022] When two pipe bodies 1 are docked, the docking portion formed at one end of the second connecting ring 210 on one of the pipe bodies 1 can be inserted into the connecting groove 202 of the other pipe body 1 until the ends of the two pipe bodies 1 are in contact after the installation is completed. At this time, with the cooperation of the first connecting ring 201 and the second connecting ring 210, the docking gaps of the two pipe bodies 1 can be distributed in a "Z" shape, which effectively improves the sealing effect and reduces the occurrence of water seepage at the connecting gaps of the buried pipe bodies 1. At the same time, it can improve the efficiency of the docking of the pipe bodies 1 and improve the laying efficiency of the pipe bodies 1.

[0023] like Figure 1-Figure 7As shown, an air storage cavity 205 is provided inside the first connecting ring 201 and the second connecting ring 210, and an extrusion ring 208 is slidably connected to the inner wall of the air storage cavity 205. A spring 207 is fixedly connected to one side of the extrusion ring 208, and the other end of the spring 207 is fixedly connected to the inner wall of the air storage cavity 205. An inert gas is filled between the side of the extrusion ring 208 close to the spring 207 and the air storage cavity 205.

[0024] Sealing airbags 209 are embedded and installed on the inner sides of the first connecting ring 201 and the second connecting ring 210 . The surface of the sealing airbags 209 is connected with evenly distributed conduits 206 , and the other end of the conduits 206 is connected to the air storage chamber 205 .

[0025] The inner wall of the connection groove 202 is slidably connected with evenly distributed trigger plates 204 , the surface of the trigger plate 204 is fixedly connected with a connecting rod 203 , and the other end of the connecting rod 203 is fixedly connected to the surface of an adjacent extrusion ring 208 .

[0026] The surface of the second connecting ring 210 is provided with a slip ring 211 slidably connected to the inner wall of the sliding groove. The surface of the slip ring 211 is fixedly connected to a mounting rod 212 , and the other end of the mounting rod 212 is fixedly connected to the surface of the adjacent extrusion ring 208 .

[0027] During the process of connecting the two pipe bodies 1, the end of the first connecting ring 201 can push the slip ring 211 to slide along the inner wall of the slide groove, thereby driving the installation rod 212 to insert into the interior of the air storage chamber 205. In this process, the inert gas stored in the air storage chamber 205 can be squeezed, and the squeezed inert gas can be injected into the interior of the adjacent sealing airbag 209 through the conduit 206 connected thereto and inflate the sealing airbag 209. The inflated sealing airbag 209 can wrap the cable placed inside the pipe body 1, thereby strengthening the sealing strength of the connection between the two pipe bodies 1 and further reducing the impact of water seepage on the cable during the burial process. The end of the second connecting ring 210 can be inserted into the interior of the connecting groove 202. In this process, the trigger plate 204 can be pushed to drive the connecting rod 203 to insert into the interior of the air storage chamber 205. In this process, the inert gas stored in the air storage chamber 205 can be squeezed to inflate another sealing airbag 209, further strengthening the sealing effect of the connection.

[0028] like Figure 1-Figure 7 As shown, the auxiliary component 3 includes a connecting shell 305 fixedly connected to the surface of the pipe body 1, the inner wall of the connecting shell 305 is fixedly connected with uniformly distributed reinforcing plates 307, the surface of the reinforcing plates 307 is provided with uniformly distributed through holes 309, and the surface of the connecting shell 305 is provided with two groups of symmetrically distributed filter holes 308.

[0029] The bottom of the connection shell 305 is connected to a mounting box 306 , and the surface of the mounting box 306 is provided with evenly distributed drainage holes.

[0030] The auxiliary component 3 further includes a plurality of support blocks 301 fixedly connected to the inner wall of the pipe body 1 and evenly distributed. The cross-section of the support block 301 is arc-shaped, and evenly distributed grooves 302 are formed on the top of the support block 301 .

[0031] A heat exchange fin 303 is embedded and installed on the outer side of the support block 301 , and a heat exchange plate 304 is fixedly connected to the surface of the heat exchange fin 303 . The other end of the heat exchange plate 304 extends to the inside of the installation box 306 .

[0032] By setting the connection shell 305, during the burial process, since the soil pressure inside the connection shell 305 is smaller than that after burial, the water in the soil can actively flow to the inside of the connection shell 305 through the filter hole 308, so as to achieve the purpose of water collection, reduce the influence of the water in the buried soil on the pipeline body 1, and can enhance the heat dissipation effect of the pipeline body 1 through active water collection during use, so that the heat generated during the operation of the cable can be gradually cooled down as the water flows inside the connection shell 305, reducing the heat accumulation caused by the failure to dissipate the heat generated during the operation of the cable in time, avoiding the situation where the heat accumulation affects the normal operation of the cable or even damages it, and effectively improving the protection effect; The support block 301 can be used to support the cable so that the cable will not directly fit against the inner wall of the pipe body 1, and a certain space is formed between the cable and the inner wall of the pipe body 1, which is beneficial to the dissipation of heat generated during the operation of the cable, and the setting of the groove 302 can enhance the heat dissipation effect at the bottom of the cable. The setting of the heat exchange plate 303 can actively absorb the heat adsorbed when the support block 301 contacts the cable and introduce it into the interior of the installation box 306 through the heat exchange plate 304, and the interior of the installation box 306 is connected to the connecting shell 305, so that the collected and guided water can enter the interior of the installation box 306 and be discharged through the drainage hole. In this process, the heat exchange plate 304 can be cooled, so that the heat dissipation effect of the cable can be enhanced in cooperation with the heat exchange plate 303 and the support block 301.

[0033] The provision of the reinforcing plate 307 can enhance the compressive strength of the connecting shell 305 , thereby preventing the connecting shell 305 from being deformed due to excessive pressure from the buried soil and affecting the water collection effect.

[0034] Working principle: When two pipe bodies 1 are butted together, the butt joint formed at one end of the second connecting ring 210 on one of the pipe bodies 1 can be inserted into the connecting groove 202 of the other pipe body 1 until the ends of the two pipe bodies 1 are in contact after the installation is completed. At this time, with the cooperation of the first connecting ring 201 and the second connecting ring 210, the butt joint gaps of the two pipe bodies 1 can be distributed in a "Z" shape, which effectively improves the sealing effect and reduces the occurrence of water seepage in the connecting gaps of the buried pipe bodies 1. At the same time, it can improve the efficiency of the butt joint of the pipe bodies 1 and the laying efficiency of the pipe bodies 1. In the process of butt jointing the two pipe bodies 1, the inert gas stored in the air storage chamber 205 can be squeezed. The squeezed inert gas can be injected into the adjacent sealing airbag 209 through the conduit 206 connected thereto and inflate the sealing airbag 209. The inflated The sealing airbag 209 can wrap the cable placed inside the pipe body 1, thereby strengthening the sealing strength of the connection between the two pipe bodies 1, and further reducing the impact of water seepage on the cable during the burial process. During use, by setting the connecting shell 305, during the burial process, since the soil pressure inside the connecting shell 305 is smaller than that after burial, the water in the soil can actively flow to the inside of the connecting shell 305 through the filter hole 308, so as to achieve the purpose of water collection, reduce the impact of water in the buried soil on the pipe body 1, and actively collect water during use to enhance the heat dissipation effect of the pipe body 1, so that the heat generated during the operation of the cable can be gradually cooled down as the water flows inside the connecting shell 305, reducing the accumulated heat formed by the failure of the heat generated during the operation of the cable to be dissipated in time, avoiding the situation where the accumulated heat affects the normal operation of the cable or even damages it, and effectively improving the protection effect.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A power pipeline anti-damage sealing device, comprising a pipeline body (1), characterized in that: The top of the pipeline body (1) is provided with an inspection groove, and the inner wall of the inspection groove is fixedly connected with two symmetrically distributed connection blocks (103); the top of the pipeline body (1) is provided with a cover plate (101), and the surface of the cover plate (101) is provided with a connection screw (102), and the lower end of the connection screw (102) passes through the cover plate (101) and is threadedly connected to the inner wall of the connection block (103); the surface of the pipeline body (1) is provided with an auxiliary component (3), and the interior of the pipeline body (1) is provided with a connection component (2), and the two pipeline bodies (1) are butt-jointed via the connection component (2); The connection assembly (2) comprises a first connection ring (201) and a second connection ring (210) fixedly connected to the inner wall of the pipe body (1); the first connection ring (201) and the second connection ring (210) are symmetrically distributed, and the opposite ends of the first connection ring (201) and the second connection ring (210) both penetrate the pipe body (1); a connection groove (202) is provided on the inner side of the first connection ring (201); a sliding groove is provided on the surface of the second connection ring (210); one end of the second connection ring (210) provided with the sliding groove forms a docking portion, and the outer diameter of the docking portion is equal to the inner diameter of the connection groove (202).

2. The power pipeline anti-damage sealing device according to claim 1, characterized in that: An air storage cavity (205) is provided inside the first connecting ring (201) and the second connecting ring (210); an extrusion ring (208) is slidably connected to the inner wall of the air storage cavity (205); a spring (207) is fixedly connected to one side of the extrusion ring (208); the other end of the spring (207) is fixedly connected to the inner wall of the air storage cavity (205); and an inert gas is filled between the side of the extrusion ring (208) close to the spring (207) and the air storage cavity (205).

3. The power pipeline anti-damage sealing device according to claim 2, characterized in that: A sealing airbag (209) is embedded and installed inside the first connecting ring (201) and the second connecting ring (210), and the surface of the sealing airbag (209) is connected to uniformly distributed conduits (206), and the other end of the conduit (206) is connected to the air storage chamber (205).

4. The anti-damage sealing device for electric power pipeline according to claim 3, characterized in that: The inner wall of the connection groove (202) is slidably connected to evenly distributed trigger plates (204), the surface of the trigger plate (204) is fixedly connected to a connecting rod (203), and the other end of the connecting rod (203) is fixedly connected to the surface of the adjacent extrusion ring (208).

5. The anti-damage sealing device for electric power pipeline according to claim 4, characterized in that: The surface of the second connecting ring (210) is provided with a slip ring (211) slidably connected to the inner wall of the sliding groove, the surface of the slip ring (211) is fixedly connected to a mounting rod (212), and the other end of the mounting rod (212) is fixedly connected to the surface of the adjacent extrusion ring (208).

6. The anti-damage sealing device for electric power pipeline according to claim 1, characterized in that: The auxiliary component (3) comprises a connection shell (305) fixedly connected to the surface of the pipeline body (1); the inner wall of the connection shell (305) is fixedly connected with uniformly distributed reinforcing plates (307); the surface of the reinforcing plates (307) is provided with uniformly distributed through holes (309); and the surface of the connection shell (305) is provided with two groups of symmetrically distributed filter holes (308).

7. The anti-damage sealing device for electric power pipeline according to claim 6, characterized in that: The bottom of the connection shell (305) is connected to a mounting box (306), and the surface of the mounting box (306) is provided with evenly distributed drainage holes.

8. The anti-damage sealing device for electric power pipeline according to claim 7, characterized in that: The auxiliary component (3) further comprises a plurality of support blocks (301) fixedly connected to the inner wall of the pipe body (1) and evenly distributed, the cross-section of the support block (301) being arc-shaped, and the top of the support block (301) being provided with evenly distributed grooves (302).

9. The anti-damage sealing device for electric power pipeline according to claim 8, characterized in that: A heat exchange fin (303) is embedded and installed on the outer side of the support block (301), a heat exchange plate (304) is fixedly connected to the surface of the heat exchange fin (303), and the other end of the heat exchange plate (304) extends to the interior of the installation box (306).

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