A protective structure for the connection of municipal drainage pipes

Abstract

This utility model relates to the field of drainage pipeline technology, specifically a protective structure for the connection of a municipal drainage pipeline. It includes two pipe bodies, each with a second flange fixedly connected to its end. A corrugated pipe is installed between the two second flanges, with a first flange fixedly connected to both ends of the corrugated pipe. The other end of the first flange abuts against the second flange. A rotating ring is rotatably connected to the first flange, and a set of limiting blocks is fixedly connected to the rotating ring. A set of protrusions is fixedly connected to the second flange, with the limiting blocks abutting against the protrusions. A screw is rotatably connected to one of the limiting blocks in each set, and a threaded hole is formed on one of the protrusions in each set. The end of the screw is threadedly connected to the threaded hole. This design makes the connection between the corrugated compensation structure and the pipe body simple and flexible, while also ensuring a more stable connection and guaranteeing the stability and sealing of the pipeline system.

Description

Technical Field

[0001] This utility model relates to a protective structure, specifically a protective structure for the connection part of a municipal drainage pipe, belonging to the field of drainage pipe technology. Background Technology

[0002] The protective structure for the connection of municipal drainage pipelines is designed to enhance the stability and sealing of the pipeline connection, prevent leakage and damage to the connection from external factors. Common types include socket connection protection structures, rubber ring connection protection structures, and corrugated pipe connection protection structures. Among them, the corrugated pipe connection protection structure uses a corrugated pipe as the connection component, with both ends of the corrugated pipe connected to the pipeline. The corrugated pipe is usually made of metal or non-metal materials and has good extensibility and flexibility. It can effectively compensate for displacement caused by thermal expansion and contraction of the pipeline, ground settlement, etc., and reduce stress concentration in the pipeline system. At the same time, the corrugated pipe connection also has a certain effect of vibration reduction and noise reduction.

[0003] However, in traditional bellows connection and protection structures, the bellows is fastened to the pipe or equipment by flanges and bolts. During installation, each bolt needs to be installed individually, which takes a lot of time and manpower. Moreover, it is difficult to ensure that each bolt is tightened evenly during the installation process. If the bolts are tightened differently, it will cause uneven stress on the flange, which will cause uneven pressure on the bellows, potentially affecting its sealing performance, or even causing local deformation or damage to the bellows and pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a protective structure for the connection of municipal drainage pipes in order to solve the above-mentioned problems. By rotating the ring, the limiting block and the protrusion abut against each other, and then fastening with screws, the operation is simple, the space adaptability is good, the installation efficiency is improved, the installation time and labor costs are saved, and the flange is evenly stressed. It can provide a more stable connection between the pipe body and the corrugated pipe, making the corrugated pipe less prone to loosening during operation, thus ensuring the stability and sealing of the pipeline system.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a protective structure for the connection of a municipal drainage pipe, comprising a second flange fixedly connected to each end of two pipe bodies, a corrugated compensation structure installed between the two second flanges, the corrugated compensation structure comprising a corrugated pipe, an installation structure installed at both ends of the corrugated pipe, the installation structure comprising a first flange, the first flange fixedly connected to each end of the corrugated pipe, the other end of the first flange abutting against the second flange, a rotating ring rotatably connected to the first flange, a set of limiting blocks fixedly connected to the rotating ring, a set of protrusions fixedly connected to the second flange, the limiting blocks abutting against the protrusions, a screw rotatably connected to one of the limiting blocks in each set of the two sets of the two sets of the protrusions, a screw hole opened on one of the protrusions in each set of the two sets of the screw, the end of the screw threadedly connected to the screw hole.

[0006] Preferably, the cross-section of the limiting block is U-shaped, and both ends of the protrusion are inclined.

[0007] Preferably, the rotating ring has four sliding grooves, and the first flange has four stops fixedly connected to it.

[0008] Preferably, a rubber ring is installed on the first flange, and the rubber ring abuts against the second flange.

[0009] Preferably, two limiting rods are fixedly connected to one set of limiting blocks, the ends of the limiting rods are slidably connected to the other set of limiting blocks, and limiting nuts are threadedly connected to the limiting blocks.

[0010] Preferably, the two limiting rods are symmetrically distributed about the middle of the bellows, and an inner sleeve is installed inside the bellows.

[0011] Preferably, a positioning post is fixedly connected to the first flange, and a positioning hole is provided on the second flange, wherein the positioning post is inserted into the positioning hole.

[0012] Preferably, a clamp is installed on the outside of the pipe body, and a bracket is fixedly connected to the bottom end of the clamp.

[0013] The beneficial effects of this utility model are as follows: by rotating the ring to make the limiting block and the protrusion abut against each other, and then further tightening with a screw, compared with the traditional method of installing multiple bolts one by one, the operation is simpler, the installation efficiency is improved, and the installation time and labor costs are saved. The abutting cooperation between the limiting block and the protrusion makes the two flanges bear force evenly, which can provide a more stable connection, making the bellows less likely to loosen during operation, ensuring the stability and sealing of the pipeline system. The installation is simple and convenient, and it can also be easily installed in some places with relatively narrow spaces, so it has good space adaptability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the rotating ring and the limiting block of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the corrugated pipe and the inner sleeve of this utility model.

[0017] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 5 This is a schematic diagram of the connection structure between the limiting block and the protrusion of this utility model.

[0019] In the diagram: 1. Pipe body; 2. Installation structure; 201. First flange; 202. Rotary ring; 203. Limiting block; 204. Protrusion; 205. Screw; 206. Screw hole; 207. Slide groove; 208. Stop block; 209. Rubber ring; 3. Corrugated compensation structure; 301. Corrugated pipe; 302. Inner sleeve; 303. Limiting tie rod; 304. Limiting nut; 4. Positioning post; 5. Positioning hole; 6. Clamp; 7. Bracket; 8. Second flange. 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] Please see Figures 1-5As shown, a protective structure for a municipal drainage pipe connection includes two pipe bodies 1. Each end of the two pipe bodies 1 is fixedly connected to a second flange 8. A corrugated compensation structure 3 is installed between the two second flanges 8. The corrugated compensation structure 3 includes a corrugated pipe 301. Each end of the corrugated pipe 301 is equipped with an installation structure 2. The installation structure 2 includes a first flange 201. Each end of the corrugated pipe 301 is fixedly connected to the first flange 201. The other end of the first flange 201 abuts against the second flange 8. A swivel ring 202 is rotatably connected to the first flange 201. A set of limiting blocks 203 are fixedly connected to the first flange 201, and a set of protrusions 204 are fixedly connected to the second flange 8. The limiting blocks 203 abut against the protrusions 204. A screw 205 is rotatably connected to one of the limiting blocks 203 in each set. A screw hole 206 is opened on one of the protrusions 204 in each set. The end of the screw 205 is threadedly connected to the screw hole 206. The cross-section of the limiting block 203 is U-shaped. Both ends of the protrusion 204 are inclined. A rubber ring 209 is installed on the first flange 201, and the rubber ring 209 abuts against the second flange 8.

[0022] As a technical optimization of this utility model, the rotating ring 202 is provided with four sliding grooves 207, and four stops 208 are fixedly connected to the first flange 201. When the rotating ring 202 is installed on the first flange 201, the sliding grooves 207 on the rotating ring 202 are aligned with the stops 208 on the first flange 201, so that the rotating ring 202 can smoothly pass through the stops 208. As the rotating ring 202 rotates, the sliding grooves 207 and the stops 208 gradually shift away, so that the stops 208 abut against the bottom end of the rotating ring 202, effectively preventing the rotating ring 202 from slipping off the first flange 201.

[0023] As a technical optimization of this utility model, a positioning post 4 is fixedly connected to the first flange 201, and a positioning hole 5 is provided on the second flange 8. The positioning post 4 is inserted into the positioning hole 5. By inserting the positioning post 4 into the positioning hole 5, positioning can be quickly achieved when connecting the first flange 201 and the second flange 8, making installation more convenient and flexible.

[0024] As a technical optimization of this utility model, two limiting rods 303 are fixedly connected to a set of limiting blocks 203. The ends of the limiting rods 303 are slidably connected to another set of limiting blocks 203. Limiting nuts 304 are threadedly connected to the limiting blocks 203. Due to factors such as temperature changes and water pressure fluctuations, the corrugated pipe 301 of the municipal drainage pipe will expand and contract. The limiting rods 303 can control the expansion and contraction of the corrugated pipe 301 within the design range, preventing it from expanding and contracting excessively, which could lead to loosening or leakage at the connection, or damage to the corrugated pipe 301 itself due to excessive expansion and contraction, thereby extending the service life of the corrugated pipe 301. The two limiting rods 303 are symmetrically distributed about the middle of the corrugated pipe 301. The symmetrically distributed limiting rods 303 can simultaneously and evenly limit the displacement of the corrugated pipe 301 on both sides, avoiding the situation where one side of the corrugated pipe 301 is subjected to excessive force while the other side is subjected to insufficient force.

[0025] As a technical optimization of this utility model, an inner sleeve 302 is installed inside the corrugated pipe 301. The inner wall of the inner sleeve 302 is smooth and less likely to allow impurities and sediments in the water to adhere compared to the corrugated pipe 301, thereby reducing the possibility of pipe blockage and helping to keep the drainage pipe unobstructed.

[0026] As a technical optimization of this utility model, a clamp 6 is installed on the outside of the pipe body 1, and a bracket 7 is fixedly connected to the bottom end of the clamp 6; the clamp 6 and the bracket 7 together form a fixing bracket to fix the pipe body 1. The fixing bracket can accurately fix the pipe body 1 in the designed position and prevent it from being displaced due to external forces during installation or after being put into use. On the one hand, it enhances the stability of the connection of the pipe body 1, and on the other hand, it facilitates the installation of the corrugated pipe 301.

[0027] In use, the first flanges 201 at both ends of the bellows 301 are connected one by one to the second flanges 8 on the two pipe bodies 1. During installation, the first flange 201 at the end of the bellows 301 is brought close to the second flange 8, so that the positioning pin 4 on the first flange 201 is aligned with the positioning hole 5 on the second flange 8 and inserted to achieve initial positioning. Then, the rotating ring 202 is rotated, and the rotating ring 202 drives the limiting block 203 to gradually approach the protrusion 204 on the second flange 8. Both ends of the protrusion 204 are inclined structures. When the limiting block 203 approaches the protrusion 204, the inclined structure can guide it. The limiting block 203 smoothly abuts against the protrusion 204, and as the limiting block 203 rotates, the contact area between the limiting block 203 and the protrusion 204 gradually increases, and the abutment becomes tighter. By driving multiple limiting blocks 203 to simultaneously abut against multiple protrusions 204 on the second flange 8 through the rotating ring 202, it is ensured that the second flange 8 is uniformly stressed in the circumferential direction, effectively avoiding local stress concentration and ensuring the stability and reliability of the pipeline connection. Then, the end of the screw 205 is screwed into the corresponding screw hole 206, thereby limiting the rotating ring 202 and the limiting block 203, further increasing the wave... The stability of the connection between the corrugated pipe 301 and the pipe body 1; when the first flange 201 is connected to the second flange 8, the rubber ring 209 on the first flange 201 abuts against the second flange 8, thereby enhancing the sealing of the connection; then, the limiting rod 303 is adjusted, and one end of the limiting rod 303 is pressed against the limiting block 203 by two limiting nuts 304, thereby fixing that end of the limiting rod 303 to the corresponding limiting block 203. Then, according to the actual operation of the pipeline system and the expansion and contraction requirements of the corrugated pipe 301, the position of the limiting nut 304 at the other end of the limiting rod 303 is adjusted. The limit rod 303 is designed to slide a distance that matches the extension and contraction of the bellows 301. The limit rod 303 prevents the bellows 301 from being overstretched or compressed, thereby protecting the bellows compensation structure 3 and the piping system from damage. An inner sleeve 302 is installed inside the bellows 301. To avoid turbulence in the inner sleeve 302, the inner sleeve 302 can only have a weld at the inflow end facing the bellows 301. The inner wall of the inner sleeve 302 is relatively smooth, which can provide a smoother channel for water flow, reduce turbulence in the bellows 301, reduce water flow resistance, improve drainage efficiency, and make the drainage process more stable and efficient.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective structure for the connection of a municipal drainage pipe, comprising two pipe bodies (1), characterized in that: Each of the two pipe bodies (1) is fixedly connected to a second flange (8). A corrugated compensation structure (3) is installed between the two second flanges (8). The corrugated compensation structure (3) includes a bellows (301). Both ends of the bellows (301) are equipped with an installation structure (2). The installation structure (2) includes a first flange (201). Both ends of the bellows (301) are fixedly connected to the first flange (201). The other end of the first flange (201) abuts against the second flange (8). A rotating ring (202) is rotatably connected to the disc (201), and a set of limiting blocks (203) is fixedly connected to the rotating ring (202). A set of protrusions (204) is fixedly connected to the second flange (8). The limiting blocks (203) abut against the protrusions (204). A screw (205) is rotatably connected to one of the two sets of limiting blocks (203). A screw hole (206) is opened on one of the two sets of protrusions (204). The end of the screw (205) is threadedly connected to the screw hole (206).

2. The protective structure for the connection of a municipal drainage pipe according to claim 1, characterized in that: The limiting block (203) has a "U" shaped cross section, and both ends of the protrusion (204) have a beveled structure.

3. The protective structure for the connection of a municipal drainage pipe according to claim 1, characterized in that: The rotating ring (202) has four sliding grooves (207), and the first flange (201) has four stops (208) fixedly connected to it.

4. The protective structure for the connection of a municipal drainage pipe according to claim 3, characterized in that: A rubber ring (209) is installed on the first flange (201), and the rubber ring (209) abuts against the second flange (8).

5. A protective structure for a municipal drainage pipe connection according to claim 2, characterized in that: Two limiting rods (303) are fixedly connected to one set of limiting blocks (203). The end of the limiting rod (303) is slidably connected to another set of limiting blocks (203). A limiting nut (304) is threadedly connected to the limiting block (203).

6. A protective structure for a municipal drainage pipe connection according to claim 5, characterized in that: Two limiting rods (303) are symmetrically distributed about the middle of the bellows (301), and an inner sleeve (302) is installed inside the bellows (301).

7. The protective structure for the connection of a municipal drainage pipe according to claim 1, characterized in that: A positioning pin (4) is fixedly connected to the first flange (201), and a positioning hole (5) is opened on the second flange (8). The positioning pin (4) is inserted into the positioning hole (5).

8. The protective structure for the connection of a municipal drainage pipe according to claim 1, characterized in that: The pipe body (1) is fitted with a clamp (6) on the outside, and a bracket (7) is fixedly connected to the bottom end of the clamp (6).

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