A municipal rain and sewage pipeline anti-leakage structure

Abstract

The utility model belongs to municipal pipeline technical field discloses a municipal rainwater and sewage pipeline anti -seep structure, including socket pipe and spigot pipe, the inner wall entrance of socket pipe is equipped with annular slope groove, the end of spigot pipe is equipped with the connecting ring matched with slope groove, and the corner of slope groove is equipped with first sealing washer, the connecting place of socket pipe and spigot pipe is equipped with locking mechanism, the locking mechanism includes the first flange plate of being equipped with socket pipe end outer wall and the second flange plate of being equipped with spigot pipe end outer wall, and the end of first flange plate is equipped with annular gear slot with the cross section of triangle, and the end of second flange plate is equipped with the annular tooth matched with annular gear slot, the utility model discloses the slope groove and connecting ring of socket pipe and spigot pipe cooperate with each other, and combine locking mechanism, have realized the quick butt joint and multiple sealing of pipeline connection, effectively prevented the seepage, and the stability of connection has been strengthened by the cooperation of annular gear slot and annular tooth matched arrangement, and the displacement resistance is strong.

Description

Technical Field

[0001] This utility model relates to the field of municipal pipeline technology, and in particular to a seepage-proof structure for municipal rainwater and sewage pipelines. Background Technology

[0002] Municipal stormwater and sewage pipelines are a crucial component of urban infrastructure, and the sealing and reliability of their connections directly impact the operational efficiency of drainage systems and environmental protection. Currently, commonly used pipeline connection methods in municipal engineering include socket connections and flange connections. Socket connections typically rely on rubber sealing rings for initial sealing, offering a simple structure and convenient installation. However, during long-term use, relative displacement between pipes can easily occur due to foundation settlement, temperature changes, or external loads, leading to wear or misalignment of the sealing rings and subsequent leakage. While flange connections offer high connection strength, their installation process is complex, requiring high alignment precision. Under conditions of vibration or uneven foundation settlement, bolts are prone to loosening, and aging or uneven tightening of gaskets can also cause leaks. Furthermore, existing leak-proof structures often employ a single sealing method, lacking multiple sealing safeguards, making them susceptible to seal failure, especially when subjected to internal or external pressure fluctuations at the interface. Some improved structures attempt to enhance connection stability by adding locking devices or reinforcing ribs, but these still suffer from structural complexity, inconvenient on-site installation, or insufficient resistance to displacement. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a seepage-proof structure for municipal rainwater and sewage pipelines.

[0004] The technical solution adopted by this utility model is: a seepage-proof structure for municipal rainwater and sewage pipes, including a socket pipe and a spigot pipe. The inner wall of the socket pipe has an annular sloping groove at the inlet, and the end of the spigot pipe has a connecting ring that matches the sloping groove. A first sealing gasket is provided at the corner of the sloping groove. A locking mechanism is provided at the connection between the socket pipe and the spigot pipe. The locking mechanism includes a first flange on the outer wall of the end of the socket pipe and a second flange on the outer wall of the end of the spigot pipe. The end of the first flange has an annular toothed groove with a triangular cross-section, and the end of the second flange has an annular tooth that matches the annular toothed groove. The first flange and the second flange are fixedly connected by a locking assembly.

[0005] Preferably, the locking assembly includes a plurality of bolts for fixing the first flange and the second flange. The plurality of bolts are circumferentially equidistant and are located on the outer ring of the annular teeth. A second sealing gasket is provided on both sides of the annular teeth.

[0006] Preferably, one end of the first flange is provided with a first reinforcing rib connected to the outer wall of the socket pipe, and one end of the second flange is provided with a second reinforcing rib connected to the outer wall of the spigot pipe.

[0007] Preferably, the locking assembly includes arc-shaped holes on the first flange and the second flange, and T-shaped locking plates are inserted into the two arc-shaped holes.

[0008] Preferably, the locking plate has two wedge-shaped locking holes symmetrically provided at one end of the arc hole, and a wedge-shaped locking block matching the wedge-shaped locking hole is slidably provided on the first flange or the second flange.

[0009] Preferably, both ends of the wedge-shaped locking block are provided with T-shaped sliders, and the first flange or the second flange is provided with a sliding groove that matches the slider.

[0010] Preferably, the end of the socket tube or spigot tube is provided with a driving component for inserting the wedge-shaped locking block into the wedge-shaped locking hole.

[0011] Preferably, the driving component includes a fixing block disposed on the socket pipe or spigot pipe, an adjusting screw is threadedly connected to the fixing block, and the end of the adjusting screw is connected via a bearing to a driving inclined block that matches the outer wall of the socket pipe or spigot pipe. The bottom end of the wedge-shaped locking block is provided with a wedge-shaped surface that matches the inclined surface of the driving inclined block.

[0012] The beneficial effects of this utility model are:

[0013] 1. By using the beveled groove and connecting ring of the socket pipe and spigot pipe, combined with the locking mechanism, the pipe connection is quickly connected and multiple seals are achieved, effectively preventing leakage. The annular groove and annular tooth combination enhances the stability of the connection and has strong resistance to displacement.

[0014] 2. When the bolts are tightened, the pressure is evenly transmitted through the second sealing gasket. The ring teeth and the ring tooth groove fit more tightly. The second sealing gasket is deformed under pressure to fill the gap between the first flange and the second flange. The bolts are evenly distributed in the circumference to ensure uniform locking force. The second sealing gaskets on both sides of the ring teeth further enhance the sealing performance and prevent leakage caused by uneven pressure.

[0015] 3. The wedge-shaped locking holes on the locking plate are matched with the wedge-shaped locking blocks, which facilitates the locking of the first and second flanges, thereby locking the socket pipe and spigot pipe. This results in better sealing of the connection between the socket pipe and spigot pipe, prevents loosening of the connection, and improves the reliability of the connection. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a cross-sectional view of the overall structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is an enlarged cross-sectional view of the locking assembly in Embodiment 1 of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of Embodiment 2 of this utility model;

[0020] Figure 4 This is an enlarged cross-sectional view of the locking assembly in Embodiment 2 of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Socket pipe; 2. Spiral pipe; 3. Inclined groove; 4. Connecting ring; 5. First sealing gasket; 6. Locking mechanism; 7. First flange; 8. Second flange; 9. Annular toothed groove; 10. Annular tooth; 11. Locking assembly; 12. Bolt; 13. Second sealing gasket; 14. First reinforcing rib; 15. Second reinforcing rib; 16. Arc hole; 17. Locking plate; 18. Wedge-shaped locking hole; 19. Wedge-shaped locking block; 20. Sliding block; 21. Slide groove; 22. Driving component; 23. Fixing block; 24. Adjusting screw; 25. Driving inclined block; 26. Wedge-shaped surface. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0023] Example 1, as Figure 1 and Figure 2As shown, this embodiment provides a leak-proof structure for municipal stormwater and sewage pipelines, including a socket pipe 1 and a spigot pipe 2. The inner wall of the socket pipe 1 has an annular sloping groove 3 at its inlet, and the end of the spigot pipe 2 has a connecting ring 4 that matches the sloping groove 3. A first sealing gasket 5 is provided at the corner of the sloping groove 3. A locking mechanism 6 is provided at the connection between the socket pipe 1 and the spigot pipe 2. The locking mechanism 6 includes a first flange 7 on the outer wall of the end of the socket pipe 1 and a second flange 8 on the outer wall of the end of the spigot pipe 2. The end of the first flange 7 has an annular toothed groove 9 with a triangular cross-section, and the end of the second flange 8 has an annular tooth 10 that matches the annular toothed groove 9. The first flange 7 and the second flange 8 are fixedly connected by the locking assembly 11. During installation, the connecting ring 5 of the spigot pipe 2 is inserted into the inclined groove 3 of the socket pipe 1, and the first sealing ring 5 achieves initial sealing. The first flange 7 and the second flange 8 of the locking mechanism engage with the annular tooth groove 9 and the annular tooth 10. The locking assembly 11 fixes the first flange 7 and the second flange 8, forming a dual guarantee of mechanical locking and sealing. Through the cooperation of the inclined groove 3 and the connecting ring 4 of the socket pipe 1 and the spigot pipe 2, combined with the locking mechanism 6, the quick connection and multiple sealing of the pipeline are realized, effectively preventing leakage. The engagement of the annular tooth groove 9 and the annular tooth 10 enhances the stability of the connection and has strong resistance to displacement.

[0024] The locking assembly 11 includes a plurality of bolts 12 that are fixedly connected to the first flange 7 and the second flange 8. The plurality of bolts 12 are circumferentially equidistant and are located on the outer ring of the annular teeth 10. A second sealing gasket 13 is provided on both sides of the annular teeth 10. When the bolts 12 are tightened, the pressure is evenly transmitted through the second sealing gasket 13. The annular teeth 10 and the annular tooth groove 9 fit more tightly. The second sealing gasket 13 is deformed under pressure to fill the gap between the first flange 7 and the second flange 8. The circumferentially equidistant bolts 12 ensure uniform locking force. The second sealing gaskets 13 on both sides of the annular teeth 10 further enhance the sealing performance and prevent leakage caused by uneven pressure.

[0025] One end of the first flange 7 is provided with a first reinforcing rib 14 connected to the outer wall of the socket pipe 1, and one end of the second flange 8 is provided with a second reinforcing rib 15 connected to the outer wall of the spigot pipe 2. The first reinforcing rib 14 and the second reinforcing rib 15 disperse the stress at the connection and avoid stress concentration that could damage the pipe or flange.

[0026] Example 2, as Figure 3 and Figure 4As shown, the technical feature that distinguishes it from Embodiment 1 is that the locking assembly 11 includes arc-shaped holes 16 on the first flange 7 and the second flange 8. T-shaped locking plates 17 pass through the two arc-shaped holes 16. Two wedge-shaped locking holes 18 are symmetrically provided at one end of the locking plate 17 extending out of the arc-shaped holes 16. Wedge-shaped locking blocks 19, matching the wedge-shaped locking holes 18, are slidably provided on the first flange 7 or the second flange 8. Both ends of the wedge-shaped locking blocks 19 are provided with T-shaped sliders 20. The first flange 7 or the second flange 8 is provided with a sliding groove 21 that matches the slider 20. The end of the socket tube 1 or the spigot tube 2 is provided with a driving member 22 for inserting a driving wedge locking block 19 into a wedge locking hole 18. The driving member 22 includes a fixing block 23 provided on the socket tube 1 or the spigot tube 2. An adjusting screw 24 is threadedly connected to the fixing block 23. The end of the adjusting screw 24 is connected via a bearing to a driving inclined block 25 that matches the outer wall of the socket tube 1 or the spigot tube 2. The wedge locking block 19... The bottom end of flange 9 is provided with a wedge-shaped surface 26 that matches the inclined surface of the drive wedge block 25. When locking the first flange 7 and the second flange 8, the adjusting screw 24 is rotated. The adjusting screw 24 is threadedly connected to the fixing block 23. The adjusting screw 24 is connected to the drive wedge block 25 via a bearing, so that the adjusting screw 24 pushes the drive wedge block 25 to move along the outer wall of the socket pipe 1 or the spigot pipe 2. The drive wedge block 25 abuts against the wedge-shaped surface 26 of the wedge-shaped locking block 19, so that the wedge-shaped locking block 19 slides upward. The slider 20 moves inside the groove 21, which improves the stability of the wedge-shaped locking block 19. The wedge-shaped locking block 19 matches the wedge-shaped locking hole 18, so that the locking plate 17 moves along the arc hole 16, which can lock the first flange 7 and the second flange 8. This facilitates the locking of the first flange 7 and the second flange 8, thereby locking the socket pipe 1 and the spigot pipe 2, making the connection between the socket pipe 1 and the spigot pipe 2 more airtight, preventing the connection from becoming loose, and improving the reliability of the connection.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A leak-proof structure for municipal stormwater and sewage pipelines, comprising a socket pipe (1) and a spigot pipe (2), characterized in that: At the inner wall entrance of the socket pipe (1), there is an annular ramp groove (3). At the end of the spigot pipe (2), there is a connecting ring (4) that matches the ramp groove (3). At the corner of the ramp groove (3), there is a first sealing washer (5). At the connection between the socket pipe (1) and the spigot pipe (2), there is a locking mechanism (6). The locking mechanism (6) includes a first flange (7) provided on the outer wall of the end of the socket pipe (1) and a second flange (8) provided on the outer wall of the end of the spigot pipe (2). At the end of the first flange (7), there is an annular tooth groove (9) with a triangular cross-section. At the end of the second flange (8), there is an annular tooth (10) that matches the annular tooth groove (9). The first flange (7) and the second flange (8) are fixedly connected by a locking component (11).

2. The anti-seepage structure for municipal stormwater and sewage pipelines according to claim 1, characterized in that: The locking component (11) includes a plurality of bolts (12) for fixedly connecting the first flange (7) and the second flange (8). The plurality of bolts (12) are circumferentially equidistantly distributed, and the bolts (12) are provided on the outer ring of the annular tooth (10). Second sealing washers (13) are provided on both sides of the annular tooth (10).

3. The anti-seepage structure for municipal stormwater and sewage pipelines according to claim 1, characterized in that: One end of the first flange (7) is provided with a first reinforcing rib plate (14) connected to the outer wall of the socket pipe (1), and one end of the second flange (8) is provided with a second reinforcing rib plate (15) connected to the outer wall of the spigot pipe (2).

4. The anti-seepage structure for municipal stormwater and sewage pipelines according to claim 1, characterized in that: The locking component (11) includes arc-shaped holes (16) provided on the first flange (7) and the second flange (8). A T-shaped locking plate (17) is inserted through the two arc-shaped holes (16).

5. The anti-seepage structure for municipal stormwater and sewage pipelines according to claim 4, characterized in that: At one end of the locking plate (17) extending out of the arc-shaped hole (16), two wedge-shaped lock holes (18) are symmetrically provided. A wedge-shaped lock block (19) that matches the wedge-shaped lock hole (18) is slidably provided on the first flange (7) or the second flange (8).

6. The anti-seepage structure for municipal stormwater and sewage pipelines according to claim 5, characterized in that: Both ends of the wedge-shaped lock block (19) are provided with T-shaped sliders (20). A chute (21) that matches the slider (20) is provided on the first flange (7) or the second flange (8).

7. A seepage-proof structure for municipal stormwater and sewage pipelines according to claim 6, characterized in that: At the end of the socket pipe (1) or the spigot pipe (2), there is a driving member (22) for driving the wedge-shaped lock block (19) to insert into the wedge-shaped lock hole (18).

8. The anti-leakage structure for municipal stormwater and sewage pipelines according to claim 7, characterized in that: The driving member (22) includes a fixed block (23) provided on the socket pipe (1) or the spigot pipe (2). An adjusting screw (24) is threadedly connected to the fixed block (23). The end of the adjusting screw (24) is connected by a bearing to a driving inclined block (25) that matches the outer wall of the socket pipe (1) or the spigot pipe (2). The bottom end of the wedge-shaped lock block (19) is provided with a wedge-shaped surface (26) that matches the inclined surface of the driving inclined block (25).

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