A sewage interception device for municipal sewer network repair

Abstract

The utility model relates to the field of municipal drainage pipe network repair, especially municipal drainage pipe network repair sewage intercepting device, including drainage pipe main part, the outside of drainage pipe main part fixed mounting has a plurality of pipeline support board, the water outlet of drainage pipe main part swing installation has intercepting steel disc, the outside of drainage pipe main part swing installation has the effect improving subassembly, the bottom of effect improving subassembly and the outside of drainage pipe main part all fixed mounting has location assembly, the outside of effect improving subassembly fixed mounting has fixed assembly, the utility model discloses the outside surface fixed mounting of effect improving subassembly has the extension assembly, the bottom of extension assembly and the one side of extension assembly all fixed mounting has the stability increasing subassembly, the top of extension assembly fixed mounting has the limiting assembly, solved the technical problem that the interception effect is poor and service life is short.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage pipe network repair, and in particular to a sewage interception device for municipal drainage pipe network repair. Background Technology

[0002] In the field of municipal drainage network repair, when repairing municipal drainage networks, it is sometimes necessary to temporarily intercept the sewage discharged from the outlet of the drainage pipes in the municipal drainage network. In the process of temporarily intercepting the sewage discharged from the outlet of the drainage pipes in the municipal drainage network, a sewage interception device for municipal drainage network repair is often required.

[0003] In existing technologies, steel plates are typically used to cover the outlet of drainage pipes in municipal drainage networks and then fixed to the pipes with bolts for temporary interception. However, during this temporary interception, the outlet of the drainage pipe, where the steel plate is used, is usually not properly sealed, which can lead to leaks. This reduces the interception effectiveness of the steel plate. Furthermore, in existing technologies, the steel plate is generally not externally supported, which can cause it to be damaged more quickly under the continuous pressure of the sewage discharged from the drainage pipes, thus shortening its service life. Utility Model Content

[0004] This invention provides a sewage interception device for municipal drainage network repair to address the problems of poor interception effect and short service life in existing technologies. It can improve the interception effect and extend the service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage interception device for municipal drainage pipe network repair, comprising a drainage pipe body, multiple pipe support plates fixedly installed on the outer side of the drainage pipe body, an interception steel disc movably installed at the outlet end of the drainage pipe body, an efficiency-enhancing component movably installed on the outer side of the drainage pipe body to improve the interception effect of the interception steel disc in intercepting sewage discharged from the outlet end of the drainage pipe body in the municipal drainage pipe network, a positioning component for positioning the efficiency-enhancing component fixedly installed at the bottom of the efficiency-enhancing component and on the outer side of the drainage pipe body, a fixing component for fixing the efficiency-enhancing component fixedly installed on the outer side of the efficiency-enhancing component, a service life extension component for extending the service life of the interception steel disc fixedly installed on the outer surface of the efficiency-enhancing component, a stabilizing component for increasing the stability of the service life of the service life extension component fixedly installed at the bottom and one side of the service life extension component, and a limiting component for limiting the service life extension component fixedly installed at the top of the service life extension component.

[0006] Furthermore, the efficiency-enhancing component includes a first arc-shaped sealing plate and a second arc-shaped sealing plate. The inner sides of the first and second arc-shaped sealing plates are movably installed on the outer side of the drain pipe body. The inner side of the first arc-shaped sealing plate is fixedly installed on the outer surface of the intercepting steel disc. An arc-shaped support plate is fixedly connected to the top of the first arc-shaped sealing plate. The outer side of the second arc-shaped sealing plate is respectively provided with a first threaded groove and a second threaded groove. A holding rod is fixedly connected to the top of the second arc-shaped sealing plate, and the holding rod is slidably connected to the drain pipe body.

[0007] Furthermore, the positioning component includes a limiting elongated plate, a positioning square plate, and a trapezoidal plate. The top of the limiting elongated plate is fixedly installed on the bottom of the first arc-shaped sealing plate. One side of the positioning square plate and one side of the trapezoidal plate are both fixedly installed on the outer side of the drain pipe body. The limiting elongated plate is movably connected to the interior of the second arc-shaped sealing plate. The positioning square plate is movably connected to the interior of the first arc-shaped sealing plate. The trapezoidal plate is slidably connected to the interior of the second arc-shaped sealing plate.

[0008] Furthermore, the fixing component includes an arc-shaped vertical plate, one side of which is fixedly installed on the outer side of the first arc-shaped sealing plate, and the interior of the arc-shaped vertical plate is threaded with a first mounting screw and a first threaded rod.

[0009] Furthermore, the extended component includes a U-shaped rod, which is internally fixedly installed on the outer surface of the arc-shaped support plate. A reinforcing long plate is slidably connected inside the U-shaped rod and is slidably connected to the arc-shaped support plate. The front and rear sides of the reinforcing long plate are provided with a third threaded groove and a fourth threaded groove. A connecting long rod is fixedly connected to the top of the reinforcing long plate, and a second mounting screw is threadedly connected inside the connecting long rod and inside the reinforcing long plate.

[0010] Furthermore, the stabilizing component includes a supporting long plate and a convex long rod. The top of the supporting long plate is fixedly installed on the bottom of the U-shaped rod, one side of the convex long rod is fixedly installed on one side of the reinforcing long plate, the left side of the supporting long plate is fixedly installed on the right side of the curved vertical plate, and the convex long rod is movably installed inside the U-shaped rod.

[0011] Furthermore, the limiting component includes a support block, the bottom of which is fixedly installed on the top of the loop rod, the support block is slidably connected to the reinforcing long plate, and a second screw is threadedly connected to the inside of the support block.

[0012] The working principle and application principle of this utility model are as follows: During the use of this device, through the arrangement of the drainage pipe body, multiple pipe support plates, intercepting steel disc, efficiency-enhancing components, positioning components, and fixing components, this device can temporarily intercept sewage discharged from the outlet of the drainage pipe in the municipal drainage network. During this temporary interception, the device can ensure a tight seal at the outlet of the temporarily intercepted drainage pipe in the municipal drainage network, preventing leakage due to inadequate sealing. This device effectively prevents leakage caused by insufficient sealing in the temporarily intercepted municipal drainage network. Leaks at the outlet of the drain pipe reduce the interception effect. This device improves the interception effect and, through the installation of the interception steel plate, extended components, stabilization components, and limiting components, provides additional external support when temporarily intercepting sewage discharged from the outlet of the drain pipe in the municipal drainage network. This prevents the device from being damaged further due to the lack of external support when continuously subjected to the pressure of sewage discharged from the outlet of the drain pipe in the municipal drainage network, thus extending its service life.

[0013] The beneficial technical effects of this utility model are: By incorporating a main drainage pipe body, multiple pipe supports, an intercepting steel disc, efficiency-enhancing components, positioning components, and fixing components, this device can temporarily intercept sewage discharged from the outlet of drainage pipes in the municipal drainage network. During this temporary interception, the device ensures a tight seal at the outlet of the temporarily intercepted drainage pipe, improving the interception effect. Furthermore, the inclusion of the intercepting steel disc, extended components, stabilizing components, and limiting components provides additional external support, preventing damage caused by a lack of external support when subjected to continuous pressure from the sewage discharge. This extends the device's service life. Attached Figure Description

[0014] Figure 1 This is a first frontal perspective three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the supporting long plate of this utility model; Figure 3 This is a three-dimensional schematic diagram of the spiral rod of this utility model; Figure 4 This is a three-dimensional schematic diagram of the curved vertical plate of this utility model; Figure 5 This is a second frontal perspective view of the present invention; Figure 6 This is a three-dimensional schematic diagram of the second arc-shaped sealing plate of this utility model; Figure 7 This is a three-dimensional schematic diagram of the limiting plate of this utility model; Figure 8 This is a frontal sectional view of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Support block; 2. Second screw; 3. U-shaped rod; 4. Support plate; 5. Pipe support plate; 6. Drainage pipe body; 7. Holding rod; 8. Second arc-shaped sealing plate; 9. First screw; 10. Arc-shaped vertical plate; 11. First mounting screw; 12. Intercepting steel disc; 13. First arc-shaped sealing plate; 14. Arc-shaped support plate; 15. Fourth threaded groove; 16. Reinforcing plate; 17. Connecting rod; 18. Second mounting screw; 19. Third threaded groove; 20. Convex rod; 21. First threaded groove; 22. Second threaded groove; 23. Positioning square plate; 24. Limiting plate; 25. Trapezoidal plate. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of the embodiments of this application easier to understand, the embodiments of this application are further described below in conjunction with the figures and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of this application and are not intended to limit the embodiments of this application.

[0017] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown: A sewage interception device for municipal drainage pipe network repair includes a drainage pipe body 6, a first arc-shaped sealing plate 13, a second arc-shaped sealing plate 8, a limiting long plate 24, a positioning square plate 23, a trapezoidal plate 25, and an arc-shaped vertical plate 10. Multiple pipe support plates 5 are fixedly installed on the outer side of the drainage pipe body 6. An interception steel plate 12 is movably installed at the outlet end of the drainage pipe body 6. An efficiency-enhancing component is movably installed on the outer side of the drainage pipe body 6 to improve the interception effect of the interception steel plate 12 in intercepting sewage discharged from the outlet end of the drainage pipe body 6 in the municipal drainage pipe network. The efficiency-enhancing component includes the first arc-shaped sealing plate 13 and the second arc-shaped sealing plate 8. The inner sides of the first arc-shaped sealing plate 13 and the inner sides of the second arc-shaped sealing plate 8 are both movably installed on the outer side of the drainage pipe body 6. On the surface of the first arc-shaped sealing plate 13, the inner side of the first arc-shaped sealing plate 13 is fixedly installed on the outer surface of the intercepting steel plate 12. The top of the first arc-shaped sealing plate 13 is fixedly connected to the arc-shaped support plate 14. The outer side of the second arc-shaped sealing plate 8 is respectively provided with a first threaded groove 21 and a second threaded groove 22. The top of the second arc-shaped sealing plate 8 is fixedly connected to the gripping long rod 7, which is slidably connected to the drain pipe body 6. The second arc-shaped sealing plate 8 is movably connected to the intercepting steel plate 12. The bottom of the efficiency-enhancing component and the outer side of the drain pipe body 6 are both fixedly installed with positioning components of the positioning efficiency-enhancing component. The positioning components include a limiting long plate 24, a positioning square plate 23, and a trapezoidal plate 25. The top of the limiting long plate 24 is fixedly installed on the bottom of the first arc-shaped sealing plate 13. One side of the positioning square plate 23 and the trapezoidal plate 25 are fixedly installed on the bottom of the first arc-shaped sealing plate 13. One side of plate 25 is fixedly installed on the outer side of the drain pipe body 6. The limiting long plate 24 is movably connected to the inside of the second arc-shaped sealing plate 8. The positioning square plate 23 is movably connected to the inside of the first arc-shaped sealing plate 13. The trapezoidal plate 25 is slidably connected to the inside of the second arc-shaped sealing plate 8. A fixing component for fixing the efficiency-enhancing component is fixedly installed on the outer side of the efficiency-enhancing component. The fixing component includes an arc-shaped vertical plate 10. One side of the arc-shaped vertical plate 10 is fixedly installed on the outer side of the first arc-shaped sealing plate 13. The inside of the arc-shaped vertical plate 10 is threaded with a first mounting screw 11 and a first screw rod 9. The first screw rod 9 is threadedly connected to the first threaded groove 21 and the second threaded groove 22, respectively. Through the drain pipe body 6, multiple pipe support plates 5, intercepting steel plate 12, and lifting... The inclusion of an efficiency-enhancing component, a positioning component, and a fixing component allows the efficiency-enhancing component to improve the interception effect of the intercepting steel disc 12 on sewage discharged from the outlet of the main body 6 of the drainage pipe in the municipal drainage network. The positioning component positions the efficiency-enhancing component, and the fixing component secures it. This device enables temporary interception of sewage discharged from the outlet of the drainage pipe in the municipal drainage network. During this temporary interception, the device ensures a tight seal at the outlet of the temporarily intercepted drainage pipe, preventing leakage due to inadequate sealing.This device enables the interception effect to be improved by preventing leakage at the outlet of the drain pipe in the municipal drainage network used for temporary interception.

[0018] In use, the initial state of this device is as follows: the main body 6 of the drain pipe is located inside the rectangular pipe pit, the bottom of the pipe support plate 5 is in contact with the ground where the inner bottom wall of the pipe pit is located, the front side of the pipe support plate 5 is in contact with the front inner side of the pipe pit, the rear side of the pipe support plate 5 is in contact with the rear inner side of the pipe pit, the right end of the pipe support plate 5 is the water outlet end and the water outlet end of the pipe support plate 5 is in an unblocked state, the first arc-shaped sealing plate 13 is disconnected from the main body 6 of the drain pipe, the right side of the second arc-shaped sealing plate 8 is on the same plane as the water outlet end of the main body 6 of the drain pipe, one end of the first mounting screw 11 and one end of the first screw 9 are both located inside the arc-shaped vertical plate 10, one end of the second mounting screw 18 is located inside the reinforcing long plate 16, and the second screw 2 is threadedly connected to the third threaded groove 19.

[0019] When repairing a municipal drainage network, if this device is needed to temporarily intercept sewage discharged from the outlet of a drainage pipe in the municipal drainage network, the U-shaped rod 3 is moved, causing the second screw 2, support block 1, reinforcing long plate 16, convex long rod 20, connecting long rod 17, second mounting screw 18, support long plate 4, arc-shaped support plate 14, first arc-shaped sealing plate 13, limiting long plate 24, arc-shaped vertical plate 10, first screw 9, and first mounting screw 11 to move, thus allowing the outlet of the drainage pipe body 6 to... The upper part enters the interior of the first arc-shaped sealing plate 13 and the intercepting steel plate 12 covers the water outlet end of the drain pipe body 6, so that the first arc-shaped sealing plate 13 contacts the second arc-shaped sealing plate 8 and the limiting long plate 24 enters the interior of the second arc-shaped sealing plate 8, so that the positioning square plate 23 enters the interior of the first arc-shaped sealing plate 13, so that the bottom of the arc-shaped vertical plate 10 and the bottom of the supporting long plate 4 are in contact with the ground where the inner bottom wall of the pipe pit is located, so that the first screw 9 corresponds to the first threaded groove 21.

[0020] When the first screw 9 aligns with the first threaded groove 21, rotate the first screw 9 to thread it into the first threaded groove 21. Under the action of this threaded connection, the second arc-shaped sealing plate 8 and the first arc-shaped sealing plate 13 can be fixed to the outer side of the drain pipe body 6, allowing the intercepting steel disc 12 to be indirectly fixed to the outlet end of the drain pipe body 6. This also indirectly fixes the second screw 2, support block 1, reinforcing long plate 16, convex long rod 20, connecting long rod 17, second mounting screw 18, support long plate 4, arc-shaped support plate 14, arc-shaped vertical plate 10, and support long plate 4 to the drain pipe body 6. On the main body 6 of the water pipe, after the bottom of the arc-shaped vertical plate 10 and the bottom of the supporting long plate 4 are in contact with the ground where the inner bottom wall of the pipe pit is located, and after the first screw 9 is threadedly connected to the first threaded groove 21, the first mounting screw 11 is rotated by a screwdriver. Under the action of the thread transmission, the first mounting screw 11 rotates along the arc-shaped vertical plate 10 and moves downward. When the first mounting screw 11 rotates along the arc-shaped vertical plate 10 and moves downward to the maximum distance, one end of the first mounting screw 11 is inserted into the ground where the inner bottom wall of the pipe pit is located, so that the arc-shaped vertical plate 10 can be fixed on the ground where the inner bottom wall of the pipe pit is located.

[0021] After the curved vertical plate 10 is fixed to the ground where the inner bottom wall of the pipe pit is located, the first screw 9 is rotated in the opposite direction to disengage it from the first threaded groove 21 and position one end of the first screw 9 inside the curved vertical plate 10. The gripping rod 7 is then moved to the right, causing it to slide along the drain pipe body 6. This allows the second curved sealing plate 8 to slide along the drain pipe body 6, the first curved sealing plate 13, the limiting plate 24, and the trapezoidal plate 25, respectively. When the gripping rod 7 is moved to the right to its maximum distance, the gripping rod 7 and the second curved sealing plate 8... The right side of the second arc-shaped sealing plate 8 protrudes from the outlet end of the drain pipe body 6, and the lower half of the intercepting steel plate 12 is located inside the second arc-shaped sealing plate 8. The first screw 9 and the second threaded groove 22 correspond to each other, so that the first screw 9 and the second threaded groove 22 are threadedly connected. Under the action of the intercepting steel plate 12, the intercepting steel plate 12 can temporarily intercept the sewage discharged from the outlet end of the drain pipe body 6 in the municipal drainage network. At this time, this device can be used to temporarily intercept the sewage discharged from the outlet end of the drain pipe in the municipal drainage network.

[0022] When using this device to temporarily intercept sewage discharged from the outlet of a drain pipe in a municipal drainage network, the right side of the second arc-shaped sealing plate 8 protrudes from the outlet of the drain pipe body 6, and the lower half of the intercepting steel plate 12 is located inside the second arc-shaped sealing plate 8. This allows the outer surface of the intercepting steel plate 12 to be surrounded by the first arc-shaped sealing plate 13 and the second arc-shaped sealing plate 8. With the outer surface of the intercepting steel plate 12 surrounded by the first arc-shaped sealing plate 13 and the second arc-shaped sealing plate 8, the intercepting steel plate 12 can seal the outlet of the drain pipe body 6 in the municipal drainage network where the sewage is temporarily intercepted, thus preventing leakage at the outlet of the drain pipe body 6 in the municipal drainage network where the sewage is temporarily intercepted.

[0023] In summary, this device can temporarily intercept sewage discharged from the outlet of a drain pipe in a municipal drainage network. During this process, the device ensures a tight seal at the outlet of the drain pipe, preventing leakage due to inadequate sealing. This prevents a reduction in interception effectiveness caused by leakage at the outlet of the drain pipe, thus improving the overall interception efficiency.

[0024] Example 2: Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown: A sewage interception device for municipal drainage network repair includes a drainage pipe body 6, a U-shaped rod 3, a supporting long plate 4, a convex long rod 20, and a supporting block 1. An interception steel plate 12 is movably installed at the outlet end of the drainage pipe body 6. An extension component to extend the service life of the interception steel plate 12 is fixedly installed on the outer surface of the efficiency-enhancing component. The extension component includes the U-shaped rod 3, which is internally fixedly installed on the outer surface of the arc-shaped support plate 14. A reinforcing long plate 16 is slidably connected inside the U-shaped rod 3 and is slidably connected to the arc-shaped support plate 14. The reinforcing long plate 16 has a third threaded groove 19 and a fourth threaded groove 19 on both the front and rear sides. The top of the groove 15 and the reinforcing long plate 16 is fixedly connected to a connecting long rod 17. The interior of the connecting long rod 17 and the interior of the reinforcing long plate 16 are threaded together with a second mounting screw 18. Stability-enhancing components to increase the stability of the extended assembly are fixedly installed at the bottom and one side of the extended assembly. The stability-enhancing components include a supporting long plate 4 and a convex long rod 20. The top of the supporting long plate 4 is fixedly installed at the bottom of the U-shaped rod 3, and one side of the convex long rod 20 is fixedly installed at one side of the reinforcing long plate 16. The supporting long plate 4 and the reinforcing long plate 16 are movably connected. The left side of the supporting long plate 4 is fixedly installed at the right side of the curved vertical plate 10. Rod 20 is movably installed inside the U-shaped rod 3, and convex long rod 20 is movably installed inside the supporting long plate 4. A limiting component for limiting the extended component is fixedly installed on the top of the extended component. The limiting component includes a support block 1, the bottom of which is fixedly installed on the top of the U-shaped rod 3. The support block 1 is slidably connected to the reinforcing long plate 16. A second screw 2 is threadedly connected inside the support block 1. The second screw 2 is threadedly connected to the third thread groove 19 and the fourth thread groove 15, respectively. Through the arrangement of the intercepting steel plate 12, the extended component, the stabilizing component, and the limiting component, the extended component can extend the service life of the intercepting steel plate 12, and the stabilizing component can extend the service life of the extended component. The components can increase the stability of the extended components, enabling the limiting components to limit the extended components. When using this device to temporarily intercept sewage discharged from the outlet of the drain pipe in the municipal drainage network, the device can be provided with additional external support. This prevents the device from being damaged due to the lack of additional external support when continuously subjected to the pressure of sewage discharged from the outlet of the drain pipe in the municipal drainage network, thus extending the service life of the device.

[0025] When using this device to temporarily intercept sewage discharged from the outlet of the drain pipe in the municipal drainage network, after the outer surface of the intercepting steel plate 12 is surrounded by the first arc-shaped sealing plate 13 and the second arc-shaped sealing plate 8, the second screw 2 is rotated to disengage the second screw 2 from the third threaded groove 19 and to place one end of the second screw 2 inside the support block 1. The connecting long rod 17 is moved downward to allow the reinforcing long plate 16 to slide from the inside of the loop rod 3 onto the support long plate 4. The reinforcing long plate 16 slides along the arc-shaped support plate 14, the support block 1, the loop rod 3, and the support long plate 4 respectively. The convex long rod 20 slides from the inside of the loop rod 3 into the inside of the support long plate 4. The convex long rod 20 slides along the loop rod 3 and the support long plate 4 respectively.

[0026] When the connecting rod 17 is moved downwards to its maximum distance, the second screw 2 corresponds to the fourth threaded groove 15, the connecting rod 17 contacts the support block 1, the reinforcing plate 16 covers the front side of the intercepting steel plate 12 and contacts the intercepting steel plate 12, and the bottom of the reinforcing plate 16 contacts the ground where the inner bottom wall of the pipe pit is located. The second screw 2 is rotated in the opposite direction to make the second screw 2 threadedly connected to the fourth threaded groove 15. The second mounting screw 18 is rotated by a screwdriver. Under the action of thread transmission, the second mounting screw 18 rotates and moves downwards along the connecting rod 17 and the reinforcing plate 16 respectively. When the mounting screw 18 rotates along the connecting rod 17 and the reinforcing plate 16 and moves downward to its maximum distance, one end of the second mounting screw 18 is inserted into the ground where the inner bottom wall of the pipe pit is located. At this time, with the reinforcing plate 16 covering the front side of the intercepting steel plate 12 and in contact with the intercepting steel plate 12, the outside of the intercepting steel plate 12 can be additionally supported by the reinforcing plate 16. This prevents the intercepting steel plate 12 from being damaged further when it is continuously subjected to the pressure of sewage discharged from the outlet of the drainage pipe body 6 in the municipal drainage network, and prevents the service life of the intercepting steel plate 12 from being shortened.

[0027] In summary, when using this device to temporarily intercept sewage discharged from the outlet of the drain pipe in the municipal drainage network, the device can be provided with additional external support. This prevents the device from being damaged further due to the lack of external support when continuously subjected to the pressure of sewage discharged from the outlet of the drain pipe in the municipal drainage network. Consequently, the device's service life can be extended.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sewage interception device for municipal drainage network repair, comprising a drainage pipe body (6), a plurality of pipe support plates (5) fixedly installed on the outer side of the drainage pipe body (6), and an interception steel plate (12) movably installed at the outlet end of the drainage pipe body (6), characterized in that: An efficiency-enhancing component is movably installed on the outer side of the main body of the drainage pipe (6) to improve the interception effect of the interception steel disc (12) in intercepting sewage discharged from the outlet end of the main body of the drainage pipe (6) in the municipal drainage network. A positioning component for positioning the efficiency-enhancing component is fixedly installed on the bottom of the efficiency-enhancing component and the outer side of the main body of the drainage pipe (6). A fixing component for fixing the efficiency-enhancing component is fixedly installed on the outer side of the efficiency-enhancing component. An extension component for extending the service life of the interception steel disc (12) is fixedly installed on the outer surface of the efficiency-enhancing component. A stabilizing component for increasing the stability of the extension component is fixedly installed on the bottom and one side of the extension component. A limiting component for limiting the extension component is fixedly installed on the top of the extension component.

2. The sewage interception device for municipal drainage network repair according to claim 1, characterized in that: The efficiency-enhancing components include a first arc-shaped sealing plate (13) and a second arc-shaped sealing plate (8). The inner side of the first arc-shaped sealing plate (13) and the inner side of the second arc-shaped sealing plate (8) are movably installed on the outer side of the drain pipe body (6). The inner side of the first arc-shaped sealing plate (13) is fixedly installed on the outer surface of the intercepting steel plate (12). The top of the first arc-shaped sealing plate (13) is fixedly connected to an arc-shaped support plate (14). The outer side of the second arc-shaped sealing plate (8) is respectively provided with a first threaded groove (21) and a second threaded groove (22). The top of the second arc-shaped sealing plate (8) is fixedly connected to a holding rod (7). The holding rod (7) is slidably connected to the drain pipe body (6).

3. A sewage interception device for municipal drainage network repair according to claim 1 or 2, characterized in that: The positioning assembly includes a limiting long plate (24), a positioning square plate (23), and a trapezoidal plate (25). The top of the limiting long plate (24) is fixedly installed on the bottom of the first arc-shaped sealing plate (13). One side of the positioning square plate (23) and one side of the trapezoidal plate (25) are both fixedly installed on the outer side of the drain pipe body (6). The limiting long plate (24) is movably connected to the inside of the second arc-shaped sealing plate (8). The positioning square plate (23) is movably connected to the inside of the first arc-shaped sealing plate (13). The trapezoidal plate (25) is slidably connected to the inside of the second arc-shaped sealing plate (8).

4. A sewage interception device for municipal drainage pipe network repair according to claim 3, characterized in that: The fixing assembly includes an arc-shaped vertical plate (10), one side of which is fixedly installed on the outer side of the first arc-shaped sealing plate (13). The inside of the arc-shaped vertical plate (10) is threaded with a first mounting screw (11) and a first screw rod (9).

5. A sewage interception device for municipal drainage network repair according to claim 1, 2 or 4, characterized in that: The extended components include a spiral rod (3), which is fixedly installed on the outer surface of the arc support plate (14). A reinforcing long plate (16) is slidably connected inside the spiral rod (3). The reinforcing long plate (16) is slidably connected to the arc support plate (14). A third threaded groove (19) and a fourth threaded groove (15) are provided on the front and rear sides of the reinforcing long plate (16). A connecting long rod (17) is fixedly connected to the top of the reinforcing long plate (16). A second mounting screw (18) is threadedly connected to the interior of the connecting long rod (17) and the interior of the reinforcing long plate (16).

6. A sewage interception device for municipal drainage network repair according to claim 3, characterized in that: The extended components include a spiral rod (3), which is fixedly installed on the outer surface of the arc support plate (14). A reinforcing long plate (16) is slidably connected inside the spiral rod (3). The reinforcing long plate (16) is slidably connected to the arc support plate (14). A third threaded groove (19) and a fourth threaded groove (15) are provided on the front and rear sides of the reinforcing long plate (16). A connecting long rod (17) is fixedly connected to the top of the reinforcing long plate (16). A second mounting screw (18) is threadedly connected to the interior of the connecting long rod (17) and the interior of the reinforcing long plate (16).

7. A sewage interception device for municipal drainage network repair according to claim 1, 2, 4 or 6, characterized in that: The stabilizing component includes a support plate (4) and a convex rod (20). The top of the support plate (4) is fixedly installed on the bottom of the spiral rod (3). One side of the convex rod (20) is fixedly installed on one side of the reinforcing plate (16). The left side of the support plate (4) is fixedly installed on the right side of the curved vertical plate (10). The convex rod (20) is movably installed inside the spiral rod (3).

8. A sewage interception device for municipal drainage network repair according to claim 5, characterized in that: The stabilizing component includes a support plate (4) and a convex rod (20). The top of the support plate (4) is fixedly installed on the bottom of the spiral rod (3). One side of the convex rod (20) is fixedly installed on one side of the reinforcing plate (16). The left side of the support plate (4) is fixedly installed on the right side of the curved vertical plate (10). The convex rod (20) is movably installed inside the spiral rod (3).

9. A sewage interception device for municipal drainage network repair according to claim 1, 2, 4, 6 or 8, characterized in that: The limiting component includes a support block (1), the bottom of which is fixedly installed on the top of the loop rod (3), the support block (1) is slidably connected to the reinforcing long plate (16), and the support block (1) is internally threaded with a second screw (2).

10. A sewage interception device for municipal drainage network repair according to claim 7, characterized in that: The limiting component includes a support block (1), the bottom of which is fixedly installed on the top of the loop rod (3), the support block (1) is slidably connected to the reinforcing long plate (16), and the support block (1) is internally threaded with a second screw (2).

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