Municipal drainage pipeline and construction method

Abstract

The municipal drainage pipeline comprises a pipeline body, the pipeline body is provided with a liquid inlet channel, the pipeline body comprises a liquid inlet side and a liquid outlet side, the extending direction of the liquid inlet channel is that the liquid inlet side faces the liquid outlet side, and sliding grooves are formed in the inner wall of the liquid inlet channel at intervals; the sliding groove is located in the side, close to the bottom of the pipeline body, of the liquid inlet channel, an arc-shaped strip is arranged on the groove wall of the sliding groove and slides on the groove wall of the sliding groove, a flushing hole is formed in the groove bottom of the sliding groove and penetrates through the pipeline body, and the arc-shaped strip closes the flushing hole. The arc-shaped strip is arranged and slides in the sliding groove, the outer wall device communicates with the flushing hole, and the arc-shaped strip is moved through gas or liquid impact, so that sludge and impurity deposition structures are disordered and loosened, and sludge and impurities are conveniently carried to move through impact of normally moving liquid in the pipeline body; the deposition of sludge and impurities is reduced.

Description

Technical Field

[0001] The present invention relates to the field of municipal administration, and in particular to a municipal drainage pipeline and construction method. Background Art

[0002] Drainage pipes refer to the system composed of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater, including main pipes, branch pipes and pipes leading to treatment plants.

[0003] Referring to the Chinese utility patent with patent number CN212226290U, a municipal drainage and sewage pipe is disclosed, including a plurality of pipe bodies connected in sequence, one end of the pipe body is sleeved with a connecting pipe, the connecting pipe is provided with a convex strip, the end of the pipe body away from the connecting pipe is provided with a slot for the convex strip to be inserted, an air bag is provided between the connecting pipe and the pipe body, and the air bag is connected with an inflatable member. The connecting pipe is rotated so that the convex strip is engaged with the slot, and the axial limiting effect on the connecting pipe is realized, so that the connecting pipe is not easily separated from the connected pipe body. During installation, there is no need to pull the entire pipe body, which improves the convenience of installation. By providing the air bag, after the convex strip is engaged and fixed with the slot, the inflatable member is used to inflate the air bag so that the air bag fills the gap between the connecting pipe and the pipe body, so as to improve the sealing of the pipe connection.

[0004] In actual use, sludge and impurities are easily deposited on the inner wall of the drainage pipe, causing pipe blockage, which needs to be improved. Summary of the invention

[0005] In order to reduce the sludge and impurities deposited on the inner wall of the drainage pipe, the present application provides a municipal drainage pipe and a construction method.

[0006] This application provides a municipal drainage pipeline and construction method, which adopts the following technical solutions:

[0007] A municipal drainage pipe comprises a pipe body, wherein the pipe body is provided with a liquid inlet channel, the pipe body comprises a liquid inlet side and a liquid outlet side, the extension direction of the liquid inlet channel is from the liquid inlet side to the liquid outlet side, the inner wall of the liquid inlet channel is provided with sliding grooves at intervals, the sliding grooves are located on the side of the liquid inlet channel close to the bottom of the pipe body, the sliding groove walls are provided with arcuate strips, the arcuate strips slide on the sliding groove walls, the sliding direction of the arcuate strips is vertical, the sliding groove bottom is provided with a flushing hole, the flushing hole passes through the pipe body, and the arcuate strip closes the flushing hole.

[0008] By adopting the above technical solution, in actual use, sludge and impurities are easily deposited on the inner wall of the drainage pipe, which causes the pipe to be blocked. Therefore, an arc-shaped bar is provided, and the arc-shaped bar slides in the sliding groove. The flushing hole is connected through the outer wall device, and the arc-shaped bar is moved by gas or liquid impact, so that the deposition structure of the sludge and impurities is disrupted and loosened, so that the sludge and impurities are carried by the liquid impact that moves normally in the pipe body, thereby reducing the deposition of sludge and impurities.

[0009] Optionally, the pipeline body is provided with a support frame, the support frame is provided with a connecting hole, the connecting hole is located on a side wall of the support frame, and the connecting hole is connected to the flushing hole.

[0010] By adopting the above technical solution and setting a support frame, in actual use, it is convenient to output power to the flushing hole through the inflation or liquid supply device through the support frame, thereby facilitating the control of the movement of the arc strip, making the overall operation more convenient.

[0011] Optionally, the arc-shaped bar is provided with a flushing channel 1 and a flushing channel 2, wherein the flushing channel 1 is located at one end of the arc-shaped bar close to the bottom of the sliding groove, and the extension direction of the flushing channel is a vertical direction. The flushing channel 1 is used to connect the flushing hole, and the flushing channel 2 is located on the side wall of the arc-shaped bar, and the extension direction of the flushing channel 2 is a horizontal direction. The flushing channel 2 is connected to the flushing channel 1.

[0012] By adopting the above technical solution, flushing channel one and flushing channel two are set. When liquid or gas passes through the flushing hole, the liquid or gas moves to flushing channel one and causes the arc strip to slide. Then the liquid or gas moves through flushing channel two and flushes the sludge and impurities deposited at the bottom of the inner wall of the liquid inlet channel, thereby reducing the deposition of sludge and impurities and facilitating the cleaning of the inner wall of the pipeline body.

[0013] Optionally, a guide groove is provided at the bottom of the sliding groove, the arc strip is provided with a guide block, the guide block is embedded in the guide groove, a guide spring is provided at the bottom of the guide groove, and one end of the guide spring away from the bottom of the guide groove is connected to the guide block; when the arc strip contacts the bottom of the sliding groove, the guide spring is in a normal state.

[0014] By adopting the above technical solution, a guide groove and a guide spring are set. Through such settings, the arc strip can return to its original position after moving, which reduces the situation where the arc strip gets stuck after moving, and facilitates the subsequent cleaning of the inner wall of the liquid inlet channel.

[0015] Optionally, a scraper ring is provided on the inner wall of the liquid inlet channel, and the scraper ring slides on the inner wall of the liquid inlet channel. The sliding direction of the scraper ring is close to the liquid outlet side. The scraper ring is provided with an extension block, and the extension block is located on the side of the scraper ring close to the liquid outlet side. The extension block is provided with an inclined surface, and the inclined surface extends along the direction close to the scraper ring toward the direction away from the bottom of the liquid inlet channel.

[0016] By adopting the above technical solution, a scraper ring is set, and the scraper ring slides on the inner wall of the liquid inlet channel. The inner wall is scraped in this way, which reduces the influence of sludge and impurity deposition on the passage of liquid. Secondly, it is convenient to cooperate with flushing channel one and flushing channel two to improve the cleaning effect of the inner wall of the liquid inlet channel and reduce the deposition of sludge and impurities.

[0017] Optionally, a control groove is provided on the inner wall of the liquid inlet channel, and the control groove is provided with a control rack, and the control rack slides in the control groove, and the control rack includes a tooth portion and an end portion, the tooth portion is located in the control groove, and the end portion protrudes from the inner wall of the liquid inlet channel, and the liquid inlet channel is provided with an installation cavity, and the installation cavity is connected, and the installation cavity is provided with a control gear and a closing plate, and the closing plate is meshed with the control gear, and the closing plate is used to close the flushing hole; when the scraper ring contacts the end portion, the end portion moves toward the direction close to the bottom of the control groove, and causes the control gear to rotate, and the rotation of the control gear drives the closing plate to move and close the flushing hole.

[0018] By adopting the above technical solution, a control rack, a control gear and a closing plate are provided. When the scraper ring moves to scrape the inner wall of the liquid inlet channel, the liquid impacts the sludge and impurity deposits through the second flushing channel and cooperates with the scraper ring to scrape them. When the scraper ring moves to the end that contacts the control rack, the scraper ring moves the control rack and drives the control gear to rotate. The rotation of the control gear drives the closing plate to move and close the flushing hole. At this time, the elastic force of the guide spring causes the arc block to move and embed into the sliding groove, and then the scraper ring moves. In this way, the scraper ring and liquid flushing cooperate with each other, and reduce the influence of the arc bar movement on the scraping of the scraper ring, thereby improving the cleaning effect of the sludge and impurity deposits.

[0019] A method for constructing a municipal drainage pipeline, characterized in that it comprises any of the municipal drainage pipelines described above, and further comprises the following steps:

[0020] S1, construction preparation, cleaning the construction site and excavating the trench for installing the pipeline body;

[0021] S2, the bottom of the trench is paved with crushed stone or gravel sand, and the foundation width is the same as the width of the trench bottom;

[0022] S3, installation of the pipe body, using a hoist to place the pipe body into the groove, and performing joint splicing between adjacent pipe bodies;

[0023] S4, closed water detection;

[0024] S5, trench backfill, backfill below the pipe top with sand and gravel, and backfill above the pipe top with soil excavated from the trench.

[0025] By adopting the above technical solution, crushed stone or gravel sand paving makes the adjustment of the trench more convenient. After completing the water-tightness test, the backfill below the pipe top is filled with sand and gravel, and the backfill above the pipe top is filled with soil dug out of the trench, which reduces the time for soil transportation and improves the efficiency of laying the pipeline body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Arrange an arc bar, which slides in the sliding groove, and is connected to the flushing hole through the outer wall device to move the arc bar through gas or liquid impact, so as to disrupt and loosen the sedimentation structure of sludge and impurities, so as to facilitate the impact of the liquid that moves normally in the pipeline body to carry the sludge and impurities to move, thereby reducing the deposition of sludge and impurities;

[0028] 2. Flushing channel 1 and flushing channel 2 are set. When liquid or gas passes through the flushing hole, the liquid or gas moves to flushing channel 1 and causes the arc strip to slide. Then the liquid or gas moves through flushing channel 2 and flushes the sludge and impurities deposited at the bottom of the inner wall of the liquid inlet channel, reducing the deposition of sludge and impurities and facilitating the cleaning of the inner wall of the pipeline body;

[0029] 3. The control rack, control gear and closing plate are set, and the scraper ring and liquid flushing cooperate with each other, and the influence of the arc bar movement on the scraping of the scraper ring is reduced, thereby improving the cleaning effect of sludge and impurity deposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional schematic diagram of an embodiment.

[0031] Figure 2 yes Figure 1 A is an enlarged schematic diagram.

[0032] Figure 3 It is a partial schematic diagram of an embodiment, mainly showing flushing channel one.

[0033] Figure 4 yes Figure 3 A magnified schematic diagram of B.

[0034] Explanation of the reference numerals: 1. Pipe body; 2. Liquid inlet channel; 3. Liquid inlet side; 4. Liquid outlet side; 5. Scraper ring; 6. Extension block; 7. Inclined surface; 8. Slide groove; 9. Guide groove; 10. Guide spring; 11. Arc strip; 12. Guide block; 13. Flushing channel one; 14. Flushing channel two; 15. Control groove; 16. Control rack; 17. Tooth portion; 18. End portion; 19. Contact surface; 20. Mounting cavity; 21. Control gear; 22. Closing plate; 23. Support frame; 24. Connecting hole; 25. Control spring; 26. Flushing hole. DETAILED DESCRIPTION

[0035] The present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0036] The present application embodiment discloses a municipal drainage pipeline. Figures 1 to 4 , including a pipeline body 1, the pipeline body 1 is provided with a liquid inlet channel 2, the pipeline body 1 includes a liquid inlet side 3 and a liquid outlet side 4, and the extension direction of the liquid inlet channel 2 is from the liquid inlet side 3 to the liquid outlet side 4.

[0037] A scraper ring 5 is provided on the inner wall of the liquid inlet channel 2, and the scraper ring 5 slides on the inner wall of the liquid inlet channel 2. The sliding direction of the scraper ring 5 is close to the liquid outlet side 4. The scraper ring 5 is provided with an extension block 6. The extension block 6 is located on the side of the scraper ring 5 close to the liquid outlet side 4. The extension block 6 is provided with an inclined surface 7. The inclined surface 7 extends from the direction close to the scraper ring 5 toward the direction away from the bottom of the liquid inlet channel 2. The inclined surface 7 is used to assist in scraping the liquid inlet channel 2.

[0038] In actual use, a sealed cavity may be reserved to supply a motor screw and other structures to connect the scraper ring 5 , thereby controlling the movement of the scraper ring 5 .

[0039] The inner wall of the liquid inlet channel 2 is provided with a sliding groove 8, and a plurality of sliding grooves 8 are provided at intervals along the extension direction of the inner wall of the liquid inlet channel 2. The sliding groove 8 is located on one side of the liquid inlet channel 2 close to the bottom of the pipeline body 1. A guide groove 9 is provided at the bottom of the sliding groove 8, and a guide spring 10 is provided at the bottom of the guide groove 9.

[0040] The wall of the sliding groove 8 is provided with an arc strip 11, which slides on the wall of the sliding groove 8, and the sliding direction of the arc strip 11 is the vertical direction. The arc strip 11 is provided with a guide block 12, which is used to be embedded in the guide groove 9. The guide block 12 is connected to the end of the guide spring 10 away from the bottom of the guide groove 9, and the elastic force of the guide spring 10 limits the guide block 12 from moving in the direction away from the bottom of the guide groove 9. In actual use, when the arc strip 11 contacts the bottom of the sliding groove 8, the guide spring 10 is in a normal state.

[0041] The arc strip 11 is provided with a flushing channel 13 and a flushing channel 2 14. The flushing channel 13 is located at one end of the arc strip 11 close to the bottom of the sliding groove 8. The extending direction of the flushing channel is the vertical direction. The flushing channel 13 is used to connect with the flushing hole 26. The flushing channel 2 14 is located on the side wall of the arc strip 11. The extending direction of the flushing channel 2 14 is the horizontal direction. The flushing channel 2 14 connects with the flushing channel 1 13. In actual use, the flushing liquid or gas passes through the flushing hole 26 and moves along the flushing channel 1 13 and the flushing channel 2 14 to flush the inner wall of the liquid inlet channel 2. When the liquid or gas moves, it impacts the end of the flushing channel 1 13 away from the flushing hole 26 and causes the arc strip 11 to move in the direction away from the bottom of the sliding groove 8.

[0042] A control groove 15 is provided on the inner wall of the liquid inlet channel 2, and a control rack 16 is provided on the control groove 15. The control rack 16 slides in the control groove 15, and the control rack 16 includes a tooth portion 17 and an end portion 18. The tooth portion 17 is located in the control groove 15, and the end portion 18 protrudes from the inner wall of the liquid inlet channel 2. The end portion 18 is provided with a resistance surface 19, and the resistance surface 19 is located at one end of the end portion 18 away from the tooth portion 17, and the resistance surface 19 extends in a direction away from the liquid inlet side 3 toward a direction away from the bottom of the control groove 15.

[0043] The liquid inlet channel 2 is provided with an installation cavity 20, which is connected to the control groove 15 and the flushing hole 26. The installation cavity 20 is provided with a control gear 21 and a closing plate 22, which is meshed with the control gear 21 and is used to close the flushing hole 26. When the scraper ring 5 contacts the end 18, the end 18 moves toward the direction close to the bottom of the control groove 15, and the control gear 21 rotates, and the control gear 21 rotates to drive the closing plate 22 to move and close the flushing hole 26. In actual use, a limit spring is provided at one end of the control rack 16 close to the bottom of the control groove 15, and the elastic force of the limit spring limits the control rack 16 from moving toward the direction close to the bottom of the control groove 15.

[0044] The pipe body 1 is provided with a support frame 23, and the support frame 23 is provided with a communication hole 24, and the communication hole 24 is located on the side wall of the support frame 23, and the communication hole 24 is used to connect with the flushing hole 26. In actual use, the external liquid pressurizing device or the gas supply device is connected through the communication hole 24, and alternatively, a connecting pipe can be reserved to communicate with the flushing hole 26, so as to facilitate the cleaning of the inner wall of the subsequent pressurizing device or the gas supply device to assist the liquid inlet channel 2.

[0045] The implementation principle of a municipal drainage pipe in the embodiment of the present application is as follows: in actual use, when the scraper ring 5 moves, the scraper ring 5 abuts against the abutment surface 19 so that the end 18 of the control rack 16 is separated toward the bottom of the control groove 15, and the control rack 16 moves. The movement of the control rack 16 causes the control gear 21 to rotate, so that the closing plate 22 closes the flushing hole 26, reducing the influence of the sliding of the arc strip 11 on the movement of the scraper ring 5.

[0046] A method for constructing a municipal drainage pipeline, comprising the above-mentioned municipal drainage pipeline, and further comprising the following steps:

[0047] S1, construction preparation, cleaning the construction site, and excavating the trench for installing the pipeline body 1;

[0048] S2, the bottom of the trench is paved with crushed stone or gravel sand, and the foundation width is the same as the width of the trench bottom;

[0049] S3, installing the pipe body 1, using a lifting device to hoist the pipe body 1 into the groove, and performing butt splicing between adjacent pipe bodies 1;

[0050] S4, closed water detection;

[0051] S5, setting a connecting pipe, the connecting pipe is used to connect to the flushing hole 26, and the connecting pipe extends toward the top of the pipeline body 1;

[0052] S5, backfilling the trench. The backfill below the pipe top is backfilled with sand and gravel, and the backfill above the pipe top is backfilled with soil excavated from the trench, and the end of the connecting pipe away from the pipeline body 1 is left open for closing.

[0053] The implementation principle of a construction method for a municipal drainage pipe in an embodiment of the present application is: when the inner wall of the pipe body 1 needs to be cleaned, the connecting pipe is opened and the air supply device or the liquid supply device is connected to the connecting pipe, thereby controlling the movement of the arc strip 11 and scraping the inner wall of the liquid inlet channel 2.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A municipal drainage pipeline, comprising a pipeline body (1), characterized in that: The pipeline body (1) is provided with a liquid inlet channel (2), the pipeline body (1) comprises a liquid inlet side (3) and a liquid outlet side (4), the extension direction of the liquid inlet channel (2) is from the liquid inlet side (3) to the liquid outlet side (4), the inner wall of the liquid inlet channel (2) is provided with sliding grooves (8) at intervals, the sliding grooves (8) are located on the side of the liquid inlet channel (2) close to the bottom of the pipeline body (1), the groove wall of the sliding groove (8) is provided with an arc strip (11), the arc strip (11) slides on the groove wall of the sliding groove (8), the sliding direction of the arc strip (11) is vertical, the groove bottom of the sliding groove (8) is provided with a flushing hole (26), the flushing hole (26) passes through the pipeline body (1), and the arc strip (11) closes the flushing hole (26).

2. The municipal drainage pipeline according to claim 1, characterized in that: The pipeline body (1) is provided with a support frame (23), the support frame (23) is provided with a communication hole (24), the communication hole (24) is located on a side wall of the support frame (23), and the communication hole (24) is connected to the flushing hole (26).

3. The municipal drainage pipeline according to claim 1, characterized in that: The arc-shaped strip (11) is provided with a flushing channel 1 (13) and a flushing channel 2 (14); the flushing channel 1 (13) is located at one end of the arc-shaped strip (11) close to the bottom of the sliding groove (8); the extension direction of the flushing channel is a vertical direction; the flushing channel 1 (13) is used to connect to the flushing hole (26); the flushing channel 2 (14) is located on the side wall of the arc-shaped strip (11); the extension direction of the flushing channel 2 (14) is a horizontal direction; the flushing channel 2 (14) is connected to the flushing channel 1 (13).

4. The municipal drainage pipeline according to claim 3, characterized in that: A guide groove (9) is provided at the bottom of the sliding groove (8); a guide block (12) is provided on the arc strip (11); the guide block (12) is embedded in the guide groove (9); a guide spring (10) is provided at the bottom of the guide groove (9); one end of the guide spring (10) away from the bottom of the guide groove (9) is connected to the guide block (12); when the arc strip (11) contacts the bottom of the sliding groove (8), the guide spring (10) is in a normal state.

5. The municipal drainage pipeline according to claim 3, characterized in that: The inner wall of the liquid inlet channel (2) is provided with a scraper ring (5), the scraper ring (5) slides on the inner wall of the liquid inlet channel (2), the sliding direction of the scraper ring (5) is a direction close to the liquid outlet side (4), the scraper ring (5) is provided with an extension block (6), the extension block (6) is located on a side of the scraper ring (5) close to the liquid outlet side (4), the extension block (6) is provided with an inclined surface (7), and the inclined surface (7) extends from the direction close to the scraper ring (5) to the direction away from the bottom of the liquid inlet channel (2).

6. The municipal drainage pipeline according to claim 5, characterized in that: The inner wall of the liquid inlet channel (2) is provided with a control groove (15), the control groove (15) is provided with a control rack (16), the control rack (16) slides in the control groove (15), the control rack (16) comprises a tooth portion (17) and an end portion (18), the tooth portion (17) is located in the control groove (15), the end portion (18) protrudes from the inner wall of the liquid inlet channel (2), the liquid inlet channel (2) is provided with a mounting cavity (20), the mounting cavity (20) is connected, the mounting cavity (20) is provided with a control gear (21) and a closing plate (22), the closing plate (22) is meshed with the control gear (21), and the closing plate (22) is used to close the flushing hole (26); When the scraper ring (5) contacts the end portion (18), the end portion (18) moves toward the bottom of the control groove (15), causing the control gear (21) to rotate. The rotation of the control gear (21) drives the closing plate (22) to move and close the flushing hole (26).

7. A method for constructing a municipal drainage pipeline, characterized in that: The municipal drainage pipeline according to any one of claims 1 to 6 further comprises the following steps: S1, construction preparation, cleaning the construction site and excavating a trench for installing the pipeline body (1); S2, the bottom of the trench is paved with crushed stone or gravel sand, and the foundation width is the same as the width of the trench bottom; S3, installing the pipe body (1), using a lifting device to place the pipe body (1) into the groove, and performing butt splicing between adjacent pipe bodies (1); S4, closed water detection; S5, trench backfill, backfill below the pipe top with sand and gravel, and backfill above the pipe top with soil excavated from the trench.

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