Brick masonry plugging structure of underground rain and sewage pipeline

Abstract

The utility model provides a brick masonry plugging structure of a ground rain and sewage pipeline, which belongs to the technical field of municipal rain and sewage pipeline construction and comprises two fixing plates, a masonry wall and a pressure reduction overflow pipe. The two fixing plates are fixed on the inner wall of the rain sewage pipeline to form a plugging groove; the masonry wall body is built in the blocking groove through the blocking bricks to block the cross section of the rain sewage pipeline; the masonry wall is further provided with a pressure reduction overflow pipe penetrating through the masonry wall, and the pressure reduction overflow pipe is provided with an overflow valve. The brick masonry plugging structure has the advantages that the two fixing plates of the brick masonry plugging structure are fixed to the inner wall of the rain and sewage pipeline, the connecting capacity between the edge of the lower portion of the masonry wall and the inner wall of the rain and sewage pipeline can be enhanced through the fixing plates, and the bearing capacity of the masonry wall to water pressure in the pipeline is improved; the positioning tenons and the limiting mortises are arranged on the upper surfaces and the lower surfaces of the blocking bricks, and the positioning tenons are embedded into the limiting mortises of the blocking bricks located above the positioning tenons, so that the overall structural strength of the masonry wall can be improved, and the masonry wall is prevented from collapsing under water pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal rainwater and sewage pipe construction, in particular to a brick-built blocking structure for underground rainwater and sewage pipes. Background Art

[0002] When performing trenchless repair work on municipal sewage and rainwater pipes, the first step is to seal and intercept the flow on both sides of the pipe section to be inspected and repaired. The water in this section must then be pumped out before repairs can begin. Existing sealing methods mostly use airbag sealing. However, airbag sealing is only suitable for small and medium-sized pipes. Airbag sealing is made of flexible material and is easily damaged by sharp objects in the pipe. Once the airbag is damaged, its sealing function is immediately lost, and water outside the sealant will quickly flow into the construction section of the sewage and rainwater pipe, causing it to be quickly flooded and potentially causing safety accidents. Utility Model Content

[0003] In view of this, in order to improve the firmness of the sealing structure during the construction of rainwater and sewage pipes and ensure the safety of the rainwater and sewage pipe construction process, the utility model provides a brick masonry sealing structure for underground rainwater and sewage pipes, comprising two fixing plates, a masonry wall and a pressure relief overflow pipe;

[0004] The two fixing plates are both arc-shaped strips, and the two fixing plates are fixed to the inner wall of the rainwater and sewage pipe in parallel with each other, and a sealing groove is formed between the two arc-shaped strips;

[0005] The masonry wall comprises blocking bricks and a cement layer filled in the blocking bricks, the masonry wall is located in the blocking groove, and the masonry wall blocks the cross section of the rainwater and sewage pipe;

[0006] The masonry wall is further provided with an overflow hole penetrating the masonry wall, the pressure reducing overflow pipe is fixed in the overflow hole, and the pressure reducing overflow pipe is further provided with an overflow valve.

[0007] Furthermore, the upper and lower surfaces of the blocking brick are respectively provided with a positioning tenon and a limiting mortise, and the positioning tenon is embedded in the limiting mortise of the blocking brick located above it.

[0008] Furthermore, the width of the lower end of the masonry wall is greater than the width of the upper end of the masonry wall.

[0009] Furthermore, the fixing plate is made of steel plate, and is fixed to the inner wall of the rainwater and sewage pipe by fasteners.

[0010] Furthermore, the fastener is an expansion bolt, a fixing hole is provided on the fixing plate, and the end of the expansion bolt is embedded in the inner wall of the rainwater and sewage pipe.

[0011] Furthermore, the pressure reducing overflow pipe is located in the middle of the masonry wall, and the pressure reducing overflow pipe is coaxial with the rainwater and sewage pipe.

[0012] Furthermore, a limiting ring groove is provided on the inner wall of the overflow hole, and a limiting boss is provided on the outer wall of the pressure reducing overflow pipe, and the limiting boss is embedded in the limiting ring groove.

[0013] Furthermore, the positioning tenon is in the shape of a cylinder, and the limiting mortise is in the shape of a cylindrical groove.

[0014] Furthermore, the curvature of the fixing plate is π.

[0015] Furthermore, the fixing plate is fixed to the bottom of the rainwater and sewage pipe.

[0016] The utility model discloses a brick masonry sealing structure for underground rainwater and sewage pipes, which has the following beneficial effects: the brick masonry sealing structure comprises two fixing plates, a masonry wall and a pressure reducing overflow pipe; the two fixing plates are fixed to the inner wall of the rainwater and sewage pipe to form a sealing groove; the masonry wall is built in the sealing groove by blocking bricks to block the cross section of the rainwater and sewage pipe; the masonry wall is also provided with a pressure reducing overflow pipe that passes through the masonry wall, and the pressure reducing overflow pipe is provided with an overflow valve, wherein the fixing plates can enhance the connection ability between the lower edge of the masonry wall and the inner wall of the rainwater and sewage pipe, thereby improving the masonry wall's connection with the pipe The water pressure bearing capacity in the road; the upper and lower surfaces of the blocking bricks are provided with positioning tenons and limiting mortises, and the positioning tenons are embedded in the limiting mortises of the blocking bricks above them, which can improve the overall structural strength of the masonry wall, prevent the masonry wall from collapsing under water pressure, improve the firmness of the brick masonry blocking structure, and thus improve the safety of the construction process in the rainwater and sewage pipes; the pressure reducing overflow pipe can gradually divert the water on one side of the masonry wall to the other side of the masonry wall before the masonry wall is demolished, so as to balance the water pressure on both sides of the masonry wall and ensure the safety of the masonry wall demolition process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic cross-sectional view of a brick-built blocking structure for an underground rainwater and sewage pipe according to an embodiment of the utility model.

[0018] Figure 2 It is a right view of a brick-built blocking structure for an underground rainwater and sewage pipe according to an embodiment of the present utility model.

[0019] Figure 3 The utility model is a front view of a blocking brick of a brick-built blocking structure for an underground rainwater and sewage pipe according to an embodiment of the present invention.

[0020] In the above figure: 1-rain and sewage pipe, 2-masonry wall, 3-sealing brick, 31-positioning tenon, 4-fixing plate, 41-expansion bolt, 5-pressure relief pipe, 51-limiting boss, 6-overflow valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0022] Please refer to Figures 1 to 3 A brick-built sealing structure for an underground rainwater and sewage pipe comprises two fixed plates 4, a masonry wall 2 and a pressure reducing overflow pipe 5; the sealing structure is used to seal the rainwater and sewage pipe 1. In this embodiment, the rainwater and sewage pipe is a cylindrical pipe.

[0023] Both fixing plates 4 are curved strips made of steel and secured to the inner wall of the rainwater and sewage pipe 1 via fasteners. The two fixing plates 4 are secured parallel to each other, forming a sealing groove between the two curved strips. The curved strips 4 have a curvature of π (i.e., both fixing plates 4 are semicircular arcs). The two fixing plates 4 are secured to the bottom of the rainwater and sewage pipe 1, with their highest points flush with the center of the pipe.

[0024] The masonry wall 2 includes blocking bricks 3 and a cement layer filled between and connecting the blocking bricks 3. The masonry wall 2 is located in the blocking groove, and the masonry wall 2 blocks the cross section of the rainwater and sewage pipe 1. In this embodiment, the cement layer is made of a mixture of fast-setting hard silicate cement and clay.

[0025] The masonry wall 2 is further provided with an overflow hole penetrating the masonry wall 2 , the pressure reducing overflow pipe 5 is fixed in the overflow hole, and the pressure reducing overflow pipe 5 is further provided with an overflow valve 6 .

[0026] In the above structure, the fixed plate 4 can enhance the connection ability between the lower edge of the masonry wall 2 and the inner wall of the rainwater and sewage pipe, thereby improving the bearing capacity of the masonry wall 2 to the water pressure in the pipe; the pressure reducing overflow pipe 5 on the masonry wall 2 can gradually divert the water on one side of the masonry wall to the other side of the masonry wall 2 before the masonry wall 2 is demolished, so as to balance the water pressure on both sides of the masonry wall 2 and prevent the masonry wall from spraying during the demolition process, so as to ensure the safety of the demolition process of the masonry wall 2.

[0027] Preferably, the upper and lower surfaces of the blocking brick 3 are provided with a positioning tenon 31 and a limiting mortise, respectively. The positioning tenon 31 engages with the limiting mortise of the blocking brick 3 above it. The positioning tenon 31 is cylindrical, and the limiting mortise is a cylindrical groove. The positioning tenon 31 and limiting mortise of the blocking brick 3 ensure that the upper and lower blocking bricks 3 can interlock, maximizing the reliability and firmness of the blocking wall.

[0028] Preferably, the width of the lower end of the masonry wall 2 is greater than the width of the upper end of the masonry wall 2, so that the lower part of the wall has sufficient water pressure resistance and reduces the building materials required for the entire wall.

[0029] Preferably, the fastener is an expansion bolt 41 , and both ends and the middle of the fixing plate 4 are fixed with holes, and the end of the expansion bolt 41 is embedded in the inner wall of the rainwater and sewage pipe 1 .

[0030] Furthermore, the pressure relief pipe 5 is located in the middle of the masonry wall 2 and is coaxial with the rainwater and sewage pipe 1. A retaining ring groove is provided on the inner wall of the overflow hole, and an annular retaining boss 81 is provided on the outer wall of the pressure relief pipe 5. The retaining boss 81 is embedded in the retaining ring groove. The retaining ring groove and retaining boss 81 structure allows for precise positioning of the pressure relief pipe 5 and ensures its installation strength, preventing it from falling out of the overflow hole.

[0031] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0032] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A brick masonry blocking structure for underground rainwater and sewage pipes, characterized in that: It includes two fixed plates, a masonry wall and a pressure relief overflow pipe; The two fixing plates are both arc-shaped strips, and the two fixing plates are fixed to the inner wall of the rainwater and sewage pipe in parallel with each other, and a sealing groove is formed between the two arc-shaped strips; The masonry wall comprises blocking bricks and a cement layer connected to the blocking bricks, the masonry wall is located in the blocking groove, and the masonry wall blocks the cross section of the rainwater and sewage pipe; The masonry wall is further provided with an overflow hole penetrating the masonry wall, the pressure reducing overflow pipe is fixed in the overflow hole, and the pressure reducing overflow pipe is further provided with an overflow valve.

2. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 1, characterized in that: The upper and lower surfaces of the blocking brick are respectively provided with a positioning tenon and a limiting mortise, and the positioning tenon is embedded in the limiting mortise of the blocking brick located above it.

3. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 1, characterized in that: The width of the lower end of the masonry wall is greater than the width of the upper end of the masonry wall.

4. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 1, characterized in that: The fixing plate is made of a steel plate and is fixed to the inner wall of the rainwater and sewage pipe by fasteners.

5. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 4, characterized in that: The fastener is an expansion bolt, a fixing hole is provided on the fixing plate, and the end of the expansion bolt is embedded in the inner wall of the rainwater and sewage pipe.

6. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 1, characterized in that: The pressure reducing overflow pipe is located in the middle of the masonry wall, and the pressure reducing overflow pipe is coaxial with the rainwater and sewage pipe.

7. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 1, characterized in that: A limiting ring groove is further provided on the inner wall of the overflow hole, and a limiting boss is further provided on the outer wall of the pressure reducing overflow pipe. The limiting boss is embedded in the limiting ring groove.

8. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 2, characterized in that: The positioning tenon is in the shape of a cylinder, and the limiting mortise is in the shape of a cylindrical groove.

9. The brick masonry blocking structure for underground rainwater and sewage pipes according to claim 1, characterized in that: The fixing plate has a bending radius of π.

10. The brick masonry sealing structure for underground rainwater and sewage pipes according to claim 9, characterized in that: The fixing plate is fixed to the bottom of the rainwater and sewage pipe.

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