Connecting pipeline of municipal drainage system

Abstract

The utility model relates to a connecting pipeline of a municipal drainage system, which comprises a first pipe body, a second pipe body, a left connecting disc, a right connecting disc and a locking nut, the first pipe body and the second pipe body are provided with connecting grooves with L-shaped sections, the sections of the left connecting disc and the right connecting disc are both L-shaped, and the left connecting disc and the right connecting disc can be connected into the connecting grooves. Wherein a plurality of screws are arranged on the circumference of the left connecting disc in an array mode, through holes for the screws to penetrate through are formed in the right connecting disc, and the screws penetrate through the through holes and then are locked through locking nuts. According to the connecting pipeline, the L-shaped connecting grooves are formed in the pipe bodies, meanwhile, the design of the left connecting disc and the design of the right connecting disc are added, so that the first pipe body and the second pipe body can be in butt joint without precise thread alignment or tedious welding operation, and only the left connecting disc and the right connecting disc need to be simply inserted into the corresponding connecting grooves and then locked through the locking nuts; and the convenience and the working efficiency of pipeline connection are remarkably improved, and particularly, excellent practicability is shown in a narrow or limited working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pipes, in particular to a connecting pipe of a municipal drainage system. Background Art

[0002] In the traditional municipal drainage system, the main pipe connection methods are welding and threaded connection. However, the welding process is complicated and requires professional operation. It is easily affected by the environment and climate, and there are safety hazards. Although the threaded connection is relatively easy to operate, it has high requirements for the concentricity of the pipe and may become loose or leak after long-term operation. In addition, these two connection methods are less efficient when frequent disassembly and assembly are required or when on-site construction conditions are limited, which increases construction costs and time. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides a connecting pipe for a municipal drainage system.

[0004] The technical solution adopted by the utility model is: a connecting pipe of a municipal drainage system, comprising a pipe body one, a pipe body two, a left connecting plate, a right connecting plate and a locking nut, wherein the pipe body one and the pipe body two are provided with a connecting groove with an "L"-shaped cross-section, the left connecting plate and the right connecting plate are both "L"-shaped in cross-section and can be connected to the above-mentioned connecting groove, wherein the left connecting plate has a plurality of screws in a circumferential array, the right connecting plate is provided with a through hole for the screw to pass through, and the screw is locked by a locking nut after passing through the through hole.

[0005] Furthermore, a step ring is provided on the end where the tube body 2 is connected to the tube body 1, a first annular cone surface is provided on the top of the step ring, and a step groove and a second annular cone surface that are compatible with the step ring and the first annular cone surface are provided on the end where the tube body 1 is connected to the tube body 2.

[0006] Furthermore, at least two circles of sealing step rings are arranged on the end surface of the step ring, and sealing rubber is welded on the surface of the sealing step ring.

[0007] Furthermore, the stepped groove is provided with a sealing groove which is sealed with the sealing step ring.

[0008] Furthermore, a sealing ring is provided between the tube body 1 and the tube body 2.

[0009] The beneficial effects of the utility model are:

[0010] 1. Convenience of installation: The connecting pipe provided in the present application is provided with an "L"-shaped connecting groove on the pipe body, and at the same time adds the design of left and right connecting plates, so that the docking of pipe body one and pipe body two does not require precise alignment of threads or cumbersome welding operations. It is only necessary to simply insert the left and right connecting plates into the corresponding connecting grooves and lock them with locking nuts, which significantly improves the convenience and work efficiency of pipe connection, and shows excellent practicality, especially in narrow or restricted working environments.

[0011] 2. Stability and sealing: The screws in the circular array on the left connecting plate pass through the through holes on the right connecting plate and are fixed by the locking nut. This structure ensures the stability and tightness of the connection and effectively prevents loosening or displacement caused by external forces. At the same time, due to the unique design of the connection method, the sealing performance of the connection part can be enhanced to a certain extent, reducing the leakage that may occur in the drainage system during operation. In addition, the design of the screw allows a certain length error (the length of the pipe end from the connection groove) at the pipe connection end, which enhances the flexibility and practicality of the connection device, reduces the stringent requirements for the precision of pipe manufacturing, and also facilitates the operation on the construction site, reduces the risk of failure to connect normally due to dimensional errors, and further improves the success rate of pipeline installation and construction efficiency.

[0012] 3. Disassembly and reusability: Compared with irreversible connection methods such as welding, the connecting pipes of the present invention can be easily disassembled and assembled, which is conducive to later maintenance, replacement or system expansion, and reduces the life cycle cost of the overall project. In addition, the connection parts can still maintain good integrity after disassembly and can be recycled again.

[0013] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0014] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0017] Figure 1-2 Middle: 1. Tube body one; 2. Tube body two; 3. Left connecting plate; 4. Right connecting plate; 5. Locking nut; 6. Connecting groove; 7. Screw; 8. Through hole; 9. Step ring; 10. First annular cone; 11. Step groove; 12. Second annular cone; 13. Sealing step ring; 14. Sealing rubber; 15. Sealing groove; 16. Sealing ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] The utility model provides a connecting pipe of a municipal drainage system.

[0021] In this embodiment, refer to Figure 1-2 The connecting pipe of the municipal drainage system includes a pipe body 1, a pipe body 2, a left connecting plate 3, a right connecting plate 4 and a locking nut 5. The pipe body 1 and the pipe body 2 are provided with a connecting groove 6 with an "L"-shaped cross-section. The left connecting plate and the right connecting plate are both "L"-shaped in cross-section and can be connected to the above-mentioned connecting groove. The left connecting plate has a plurality of screws 7 in a circumferential array, and the right connecting plate is provided with a through hole 8 for the screw to pass through. The screw is locked by a locking nut after passing through the through hole.

[0022] The connection of the connecting pipe of the present application adopts a unique "L"-shaped connection groove design. The pipe body 1 and the pipe body 2 can be quickly and easily spliced ​​through the left connection plate and the right connection plate, and the fastening connection is achieved through the screw and the locking nut. This structure simplifies the installation process, reduces the requirements for workers' skills and tooling equipment, and at the same time improves the installation speed and construction efficiency, enhances the stability and reliability of the connection, avoids the leakage risk that may be caused by traditional welding or threaded connection, and is suitable for the rapid construction and maintenance of large-scale municipal drainage systems.

[0023] Specifically, a step ring 9 is provided on the end where the tube body 2 is connected to the tube body 1, a first annular cone 10 is provided on the top of the step ring, and a step groove 11 and a second annular cone 12 adapted to the step ring and the first annular cone 10 are provided on the end where the tube body 1 is connected to the tube body 2.

[0024] The stepped ring on the second tube body and its first annular cone surface cooperate with the stepped groove and the second annular cone surface on the first tube body to form an axial positioning and guiding capability when the tubes are docked, which facilitates the docking between the tubes and ensures the accuracy and firmness of the connection between the tube bodies.

[0025] Specifically, at least two circles of sealing step rings 13 are arranged on the end surface of the step ring, and sealing rubber 14 is welded on the surface of the sealing step ring.

[0026] At least two circles of sealing step rings are added to the end face of the step ring, and sealing rubber is welded on the surface, which greatly improves the sealing performance of the connection part.

[0027] Specifically, the stepped groove is provided with a sealing groove 15 for sealingly cooperating with the sealing step ring.

[0028] A sealing groove matched with the sealing step ring is arranged on the step groove, so that the sealing rubber can completely fill the sealing groove when compressed, forming an all-round and multi-level sealing protection, ensuring the absolute sealing of the connection and effectively preventing sewage leakage.

[0029] Specifically, a sealing ring 16 is provided between the first tube body and the second tube body.

[0030] A sealing ring is added between the first pipe body and the second pipe body to further enhance the sealing performance of the connection and prevent leakage caused by external pressure changes or internal fluid pressure fluctuations.

[0031] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A connecting pipe for a municipal drainage system, characterized in that: It includes tube body one, tube body two, a left connecting plate, a right connecting plate and a locking nut. The tube body one and the tube body two are provided with connecting grooves with "L"-shaped cross-sections. The left connecting plate and the right connecting plate are both "L"-shaped in cross-section and can be connected to the above-mentioned connecting grooves. The left connecting plate has a plurality of screws in a circular array. The right connecting plate is provided with a through hole for the screw to pass through. The screw is locked by a locking nut after passing through the through hole.

2. The connecting pipe of the municipal drainage system according to claim 1, characterized in that: A step ring is provided on one end of the tube body 2 connected to the tube body 1, a first annular cone surface is provided on the top of the step ring, and a step groove and a second annular cone surface adapted to the step ring and the first annular cone surface are provided on one end of the tube body 1 connected to the tube body 2.

3. The connecting pipe of the municipal drainage system according to claim 2, characterized in that: At least two circles of sealing step rings are arranged on the end surface of the step ring, and sealing rubber is welded on the surface of the sealing step ring.

4. The connecting pipe of the municipal drainage system according to claim 3, characterized in that: The step groove is provided with a sealing groove which is sealed with the sealing step ring.

5. The connecting pipe of the municipal drainage system according to claim 1, characterized in that: A sealing ring is arranged between the first tube body and the second tube body.

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