Steel plugging device for municipal drainage pipeline emergency repair
By designing a steel plug, the problem of easy pipe plugs falling off was solved, achieving a stable sealing effect and convenient operation, which is suitable for emergency repairs of municipal drainage pipelines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DEJIAN GRP CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pipe plugs are prone to falling off, causing sewage to be discharged and affecting emergency repairs of municipal drainage pipes.
A steel plugging device for emergency repair of municipal drainage pipelines was designed, including a steel frame, a hollow cylinder, a screw, a nut, a limiting rod, and a steel plugging head. The depth of the plugging head can be adjusted by rotating the screw to drive the nut and the limiting rod. The plugging head can be fixed and disassembled by the cooperation of the fixing bolt and the limiting block.
It improves the stability and ease of operation of the plug in the pipeline, is suitable for plugging needs at different depths, and supports the replacement of the plug head, ensuring the smooth progress of emergency repair operations.
Smart Images

Figure CN224531872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipe plugging devices, and in particular to a steel plugging device for emergency repair of municipal drainage pipes. Background Technology
[0002] In municipal engineering projects, especially in the construction of sewage pipes, it is often necessary to partially block the sewage pipes and pump out the water to allow construction workers to enter the sewage pipes for work. The traditional method of blocking sewage pipes is to use sealing airbags to block the water.
[0003] Most pipe plugging devices on the market currently use airbags to fix the airbags to the inner wall of the pipe and seal the inner wall of the pipe. However, due to the pressure of the water flow in the pipe squeezing the airbags, and the fact that the airbags themselves rely on expansion to contact the pipe with low friction, the airbags are prone to falling off. This causes the plugging device to be unable to continue sealing the inside of the pipe, resulting in the direct discharge of sewage and affecting the pipeline repair work. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology, and to propose a steel plug for emergency repair of municipal drainage pipelines.
[0005] The technical problem to be solved by this utility model is to provide a steel plug for emergency repair of municipal drainage pipelines to solve the problem that existing pipeline plugs are prone to falling off.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A steel plugging device for emergency repair of municipal drainage pipelines includes: a steel frame, a hollow cylinder fixedly installed on the right side of the steel frame, a screw rod rotatably connected through the inner cavity of the hollow cylinder, the left end of the screw rod penetrating the outer wall of the steel frame and rotatably connected to the outer wall of the steel frame, and a nut threadedly connected to the screw rod, the nut being located in the inner cavity of the hollow cylinder, and multiple limiting rods fixedly connected to the right side of the nut, the right ends of the multiple limiting rods penetrating the hollow cylinder and movably connected to the outer wall of the hollow cylinder, and a mounting base fixedly installed on the right side of the multiple limiting rods, with a steel plugging head fixedly installed on the right side of the mounting base.
[0007] Preferably, multiple mounting blocks are fixedly installed on the left outer wall of the steel sealing head, and each of the mounting blocks is threaded with a fixing bolt. Multiple mounting holes are opened on the right outer wall of the mounting base, and one end of the fixing bolt is threaded into the inner cavity of the corresponding mounting hole.
[0008] Preferably, a limiting block is fixedly installed on the left side of the steel sealing head, and a limiting groove is formed on the outer wall of the right side of the mounting base, with the limiting block inserted into the inner cavity of the corresponding limiting groove.
[0009] Preferably, both the limiting block and the limiting groove are hexagonal, and the outer diameter of the limiting block and the inner diameter of the limiting groove are equal.
[0010] Preferably, a handwheel is fixedly installed at the left end of the screw, and the handwheel is circular in shape.
[0011] Preferably, the handwheel has multiple anti-slip teeth on its outer wall.
[0012] Preferably, multiple fixing blocks are fixedly installed on the right side wall of the steel frame, and each of the multiple fixing blocks is threaded with a plum blossom bolt.
[0013] Preferably, the number of the plurality of fixing blocks and the plurality of plum blossom bolts are all arranged in six.
[0014] In the above scheme, the rotation of the screw can drive the nut to move horizontally, the nut can drive multiple limit rods to move, the multiple limit rods can jointly drive the mounting base to move, and the mounting base can drive the steel sealing head to move. This can drive the steel sealing head to move in the municipal drainage pipeline, thereby sending the steel sealing head to different depths in the municipal drainage pipeline. It is suitable for pipeline sealing operations in different situations and improves the convenience of operation.
[0015] In the above solution, the steel sealing head is fixedly installed between the fixing bolt and the mounting base. The steel sealing head can also be disassembled and replaced in the future, so that it can be replaced in time when the steel sealing head ages, thus ensuring the sealing effect. Attached Figure Description
[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.
[0017] Figure 1 This is a schematic diagram of the external structure of the present invention from one angle; Figure 2 This is a schematic diagram of the external structure of this utility model from another angle; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure on the screw of this utility model; Figure 5 This is a schematic diagram of the steel sealing head of this utility model.
[0018] [Figure Labels] 1. Steel frame; 2. Fixing block; 3. Plum blossom bolt; 4. Hollow cylinder; 5. Screw; 6. Handwheel; 7. Anti-slip teeth; 8. Nut; 9. Limiting rod; 10. Mounting base; 11. Mounting hole; 12. Limiting groove; 13. Steel sealing head; 14. Limiting block; 15. Mounting block; 16. Fixing bolt.
[0019] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The steel plug for emergency repair of municipal drainage pipes shown in this utility model embodiment includes: a steel frame 1, a hollow cylinder 4 fixedly installed on the right side of the steel frame 1, a screw 5 rotatably connected through the inner cavity of the hollow cylinder 4, the left end of the screw 5 penetrating through the outer wall of the steel frame 1 and rotatably connected to the outer wall of the steel frame 1, and a nut 8 threadedly connected to the screw 5, the nut 8 being located in the inner cavity of the hollow cylinder 4, and multiple limiting rods 9 fixedly connected to the right side of the nut 8, the right ends of the multiple limiting rods 9 all penetrating through the hollow cylinder 4 and movably connected to the outer wall of the hollow cylinder 4, and a mounting base 10 fixedly installed on the right end of the multiple limiting rods 9, and a steel plug head 13 fixedly installed on the right side of the mounting base 10.
[0023] Specifically, first, the steel frame 1 is installed on the outside of the pipe, and the steel plug head 13 is inserted into the inside of the pipe. The steel plug head 13 is used to seal the inner wall of the pipe. Then, the screw 5 can be rotated, so that the screw 5 drives the nut 8 to move. The nut 8 drives multiple limit rods 9 to move. The multiple limit rods 9 together drive the mounting base 10 to move. The mounting base 10 drives the steel plug head 13 to move. Through the above operation, the sealing depth of the steel plug head 13 inside the pipe can be adjusted, which is suitable for different emergency repair situations.
[0024] In this embodiment, as Figures 4-5 As shown, multiple mounting blocks 15 are fixedly installed on the outer left side of the steel sealing head 13, and each mounting block 15 is threaded with a fixing bolt 16. Multiple mounting holes 11 are opened on the outer right side of the mounting base 10, and one end of the fixing bolt 16 is threaded into the inner cavity of the corresponding mounting hole 11.
[0025] Specifically, fixing bolts 16 are used to fix the mounting block 15 to the mounting base 10, thereby fixing the steel plug head 13 to the mounting base 10. When the steel plug head 13 ages after repeated use, multiple fixing bolts 16 can be removed to disassemble and replace the steel plug head 13, avoiding sewage leakage when the aged steel plug head 13 is used to seal the pipeline in the future.
[0026] In this embodiment, as Figures 4-5 As shown; a limiting block 14 is fixedly installed on the left side of the steel sealing head 13, and a limiting groove 12 is opened on the outer wall of the right side of the mounting base 10, with the limiting block 14 inserted into the inner cavity of the corresponding limiting groove 12.
[0027] Specifically, the initial installation of the steel sealing head 13 is achieved by inserting the limiting block 14 on the steel sealing head 13 into the limiting groove 12 on the mounting base 10.
[0028] In this embodiment, as Figures 4-5 As shown; both the limiting block 14 and the limiting groove 12 are hexagonal, and the outer diameter of the limiting block 14 and the inner diameter of the limiting groove 12 are equal.
[0029] Specifically, the above settings can prevent the steel sealing head 13 from rotating during initial installation, thus improving the convenience of subsequent installation.
[0030] In this embodiment, as Figures 2-4 As shown; a handwheel 6 is fixedly installed on the left end of the screw 5, and the handwheel 6 is circular.
[0031] Specifically, the handwheel 6 allows for easy application of force to the screw 5, controlling the rotation of the screw 5 to drive the steel sealing head 13 to move horizontally, thereby controlling the sealing depth.
[0032] In this embodiment, as Figures 2-4 As shown; multiple anti-slip teeth 7 are provided on the outer wall of the handwheel 6.
[0033] Specifically, by setting multiple anti-slip teeth 7, the friction on the outer wall of the handwheel 6 can be increased, improving the convenience of applying force to the handwheel 6.
[0034] In this embodiment, as Figures 1-3 As shown; multiple fixing blocks 2 are fixedly installed on the right side wall of the steel frame 1, and each fixing block 2 is threadedly connected with a plum blossom bolt 3.
[0035] Specifically, during the installation of the steel frame 1, multiple fixing blocks 2 are respectively attached to the outer wall of the pipe, and multiple plum blossom bolts 3 are rotated in sequence so that one end of each plum blossom bolt 3 is tightly attached to the outer wall of the pipe, thereby fixing the multiple fixing blocks 2 to the drainage pipe and further fixing the steel frame 1 to the outer wall of the drainage pipe. This facilitates the adjustment of the depth of the steel sealing head 13 and improves the installation strength between the overall device and the drainage pipe, preventing the problem of falling off.
[0036] In this embodiment, as Figures 1-3 As shown, the number of multiple fixing blocks 2 and multiple plum blossom bolts 3 are all set in six.
[0037] Specifically, the above settings can ensure uniform stress distribution between the steel frame 1 and the drainage pipe, thereby improving installation stability.
[0038] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A steel plug for emergency repair of municipal drainage pipelines, characterized in that, include: A steel frame (1) is fixedly installed on the right side of the steel frame (1). A screw (5) is rotatably connected through the inner cavity of the hollow cylinder (4). The left end of the screw (5) passes through the outer wall of the steel frame (1) and is rotatably connected to the outer wall of the steel frame (1). A nut (8) is threaded on the screw (5). The nut (8) is located in the inner cavity of the hollow cylinder (4). Multiple limiting rods (9) are fixedly connected to the right side of the nut (8). The right ends of the multiple limiting rods (9) all pass through the hollow cylinder (4) and are movably connected to the outer wall of the hollow cylinder (4). A mounting base (10) is fixedly installed on the right side of the multiple limiting rods (9). A steel sealing head (13) is fixedly installed on the right side of the mounting base (10).
2. The steel plug for emergency repair of municipal drainage pipelines according to claim 1, characterized in that: Multiple mounting blocks (15) are fixedly installed on the outer left side of the steel sealing head (13), and each of the mounting blocks (15) is threaded with a fixing bolt (16). Multiple mounting holes (11) are opened on the outer right side of the mounting seat (10), and one end of the fixing bolt (16) is threaded into the inner cavity of the corresponding mounting hole (11).
3. The steel plug for emergency repair of municipal drainage pipelines according to claim 1, characterized in that: The steel sealing head (13) is fixedly installed with a limiting block (14) on the left side, and a limiting groove (12) is opened on the outer wall of the right side of the mounting base (10). The limiting block (14) is inserted into the inner cavity of the corresponding limiting groove (12).
4. The steel plug for emergency repair of municipal drainage pipelines according to claim 3, characterized in that: The limiting block (14) and the limiting groove (12) are both hexagonal, and the outer diameter of the limiting block (14) and the inner diameter of the limiting groove (12) are equal.
5. The steel plug for emergency repair of municipal drainage pipelines according to claim 1, characterized in that: A handwheel (6) is fixedly installed on the left end of the screw (5), and the handwheel (6) is circular.
6. The steel plug for emergency repair of municipal drainage pipelines according to claim 5, characterized in that: The handwheel (6) has multiple anti-slip teeth (7) on its outer wall.
7. The steel plug for emergency repair of municipal drainage pipelines according to claim 1, characterized in that: Multiple fixing blocks (2) are fixedly installed on the right side wall of the steel frame (1), and each of the multiple fixing blocks (2) is threaded with a plum blossom bolt (3).
8. The steel plug for emergency repair of municipal drainage pipelines according to claim 7, characterized in that: The number of the multiple fixing blocks (2) and the multiple plum blossom bolts (3) are all arranged in six.