Anti-seismic municipal pipe network interface sealing device

Abstract

The utility model relates to the technical field of pipe network interface sealing, in particular to an anti-seismic municipal pipe network interface sealing device, which comprises two pipeline main bodies, a sealing ring, a sealing ring and a sealing ring, the sealing rubber strip is fixedly connected to the surfaces of the two pipeline main bodies; the number of the annular blocks is two, and the two annular blocks are slidably connected to the surfaces of the two pipeline bodies correspondingly. The number of the positioning assemblies is multiple, the multiple positioning assemblies are arranged in the two annular blocks correspondingly, and each positioning assembly comprises a rotating plate, a positioning groove, an inclined face push block, a rotating rod and a positioning plate; the multiple spring washers jointly press the surface of the sealing rubber strip, so that the sealing rubber strip is tightly attached to the surface of the pipeline body, the strength of the sealing rubber strip bonded to the surface of the pipeline body is improved, and the situation that the sealing rubber strip falls off from the surface of the pipeline body due to the environment humidity and other problems is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipeline interface sealing technology, and in particular to a seismic-resistant municipal pipeline interface sealing device. Background Technology

[0002] Municipal pipeline network interface sealing is a crucial aspect of ensuring the safe operation of pipeline systems. It primarily prevents leakage of liquid or gaseous media, guaranteeing the stability and durability of municipal infrastructure such as water supply, drainage, and gas supply. Common sealing methods include rubber sealing rings, metal flange gaskets, and polymer sealants. Rubber sealing rings (such as EPDM and NBR) are widely used in socket connections of water supply and drainage pipelines due to their excellent elasticity and aging resistance. They can adapt to certain pipeline displacement and vibration, ensuring long-term sealing performance. Metal flange gaskets (such as stainless steel spiral wound gaskets and metal flat gaskets) are mainly used for flange connections of pipelines handling high-pressure, high-temperature, or corrosive media. They form a rigid seal through bolt tightening and are suitable for gas pipelines or chemical pipeline networks. Polymer sealing materials (such as PTFE and silicone sealants) are often used for sealing reinforcement under special operating conditions or for leak prevention at threaded interfaces due to their chemical inertness and weather resistance. Furthermore, anaerobic adhesives can effectively fill tiny gaps in threaded connections, forming a high-strength sealing layer after curing to prevent loosening and leakage. The selection of sealing materials for municipal pipeline networks requires comprehensive consideration of media characteristics, pressure ratings, ambient temperature, and installation conditions. For example, environmentally friendly and non-toxic EPDM rubber rings are often used in water supply networks, while high-pressure resistant and explosion-proof metal sealing components are required for gas pipeline networks. With technological advancements, new composite materials (such as graphene-reinforced gaskets) are increasingly being applied in demanding municipal engineering projects, further improving sealing reliability and service life. In actual construction, proper installation techniques (such as cleaning the interfaces and applying pressure evenly) are equally crucial to ensure the sealing materials perform optimally and prevent premature failure due to improper construction. Optimized design of municipal pipeline network interface seals not only reduces resource waste and environmental pollution but also lowers maintenance costs, ensuring the long-term stable operation of urban infrastructure.

[0003] A search of Chinese patent "A Pipeline Interface Sealing Device" (publication number CN217899177U) reveals that it includes threaded openings on the outer circumference of opposite ends of two pipes (pipe 1 and pipe 2) to be connected. Flange 1 and Flange 2 are screwed onto these two threaded openings respectively. Each flange has three equidistantly distributed slots near its circumferential edge. The key feature is that a telescopic connector is engaged between flange 1 and flange 2. This telescopic connector includes an inner tube and a female tube slidably connected coaxially. Each end of the inner tube and female tube has an anti-detachment groove, and an expansion gasket is engaged in each anti-detachment groove. The diameter of the expansion gasket is equal to the diameter of pipe 1. This invention improves the sealing effect at pipe interfaces and maintains the sealing effect even when the entire pipe is subjected to slight axial pulling or compression, thus enhancing the anti-interference performance of the sealing device.

[0004] In existing technologies, municipal pipeline interfaces are often sealed with sealing materials such as rubber. After sealing, the adhesive strength of the rubber strip is reduced due to environmental humidity and other factors, causing it to detach from the pipe opening and resulting in poor sealing performance. Utility Model Content

[0005] The purpose of this utility model is to provide a seismic-resistant municipal pipeline interface sealing device to solve the above-mentioned problems. It improves the problem that the sealing of municipal pipeline interfaces often uses sealing materials such as rubber. After sealing, the rubber strip is affected by environmental humidity and other issues, resulting in reduced adhesion and detachment from the pipe opening, leading to poor sealing effect.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a seismic-resistant municipal pipeline interface sealing device, comprising:

[0007] The pipeline body has two parts, and the pipe openings of the two pipeline bodies are connected.

[0008] A sealing strip is fixedly connected to the surfaces of the two pipe bodies;

[0009] Two annular blocks are provided, and the two annular blocks are slidably connected to the surfaces of the two pipe bodies, respectively.

[0010] The positioning assembly comprises multiple sets, each set being disposed within two annular blocks. Each set of the positioning assembly includes a rotating plate, a positioning groove, an inclined push block, a rotating rod, a positioning plate, and two sets of elastic components. The positioning groove is formed within the annular block. The rotating plate is rotatably connected to the positioning groove via the rotating rod. The inclined push block is slidably connected to the positioning groove. The positioning plate is fixedly connected to the surface of the rotating plate. Both sets of elastic components are disposed within the positioning groove and are connected to the rotating plate.

[0011] Preferably, each set of elastic components includes an arc-shaped slider, a spring, and an arc-shaped groove. The arc-shaped groove is formed on one inner wall of the positioning groove. The arc-shaped slider is fixedly connected to the surface of the rotating plate and slidably connected in the arc-shaped groove. The two ends of the spring are respectively fixedly connected to the upper end of the arc-shaped slider and one inner wall of the arc-shaped groove.

[0012] Preferably, spring pads are fixedly connected to the surfaces of the plurality of positioning plates.

[0013] Preferably, each of the two positioning slots is provided with annular threaded grooves, and the two annular threaded grooves are respectively connected to the two positioning slots. Each of the two annular threaded grooves is threadedly connected with a threaded push block.

[0014] Preferably, each of the two threaded push blocks has a T-slot, and multiple T-shaped limiting blocks are slidably connected in each of the two T-slots. The multiple T-shaped limiting blocks are respectively fixed to the surfaces of the multiple inclined push blocks.

[0015] Preferably, both of the threaded push blocks have a positioning screw fixedly connected to their surfaces.

[0016] Preferably, the surfaces of the plurality of rotating plates are all provided with arc-shaped surfaces.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this solution, multiple spring pads press together on the surface of the sealing strip, making the sealing strip tightly adhere to the surface of the pipe body, increasing the strength of the sealing strip's adhesion to the pipe body surface, and preventing the sealing strip from falling off the pipe body surface due to environmental humidity and other issues.

[0019] 2. In this solution, after being subjected to vibration, the sealing strip is pressed by the elastic pad and is not easy to detach from the surface of the pipe body, thus ensuring the sealing of the pipe network interface; the sealing strip is made of polyurethane, which has good elasticity and shock resistance. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a partial cross-sectional view of the present invention;

[0022] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a perspective view of the positioning block described in this utility model.

[0024] In the diagram: 1. Pipe body; 2. Sealing strip; 3. Annular block; 4. Positioning screw; 5. Threaded push block; 6. Annular threaded groove; 7. Positioning groove; 8. Inclined push block; 9. Arc groove; 10. Rotating plate; 11. T-shaped limit block; 12. Rotating rod; 13. Positioning plate; 14. Spring pad; 15. Arc slider; 16. Spring. Detailed Implementation

[0025] 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.

[0026] In practical implementation: such as Figures 1-4 As shown, a seismic-resistant municipal pipeline interface sealing device includes:

[0027] Pipe body 1, which has two parts, with the pipe openings of the two pipe bodies 1 connected together;

[0028] Sealing strip 2 is fixedly connected to the surface of the two pipe bodies 1;

[0029] Two annular blocks 3 are provided, and the two annular blocks 3 are slidably connected to the surfaces of the two pipe bodies 1 respectively;

[0030] The positioning assembly comprises multiple sets, each set being located within two annular blocks 3. Each positioning assembly includes a rotating plate 10, a positioning groove 7, an inclined push block 8, a rotating rod 12, a positioning plate 13, and two sets of elastic components. The positioning groove 7 is located within the annular block 3. The rotating plate 10 is rotatably connected to the positioning groove 7 via the rotating rod 12. The inclined push block 8 is slidably connected to the positioning groove 7. The positioning plate 13 is fixedly connected to the surface of the rotating plate 10. Both sets of elastic components are located within the positioning groove 7 and are connected to the rotating plate 10.

[0031] In this embodiment: After the two municipal pipeline outlets are connected, a sealing strip 2 is used to seal the connection. The sealing strip 2 is made of polyurethane, which has good elasticity and shock resistance. After the sealing strip 2 is applied to the pipeline interface, the inclined push block 8 is controlled to slide into the positioning groove 7. The rotating plate 10 rotates under the pressure of the inclined push block 8 and the rotating rod 12. Finally, the spring pad 14 on the surface of the positioning plate 13 contacts the surface of the sealing strip 2. Multiple spring pads 14 press together on the surface of the sealing strip 2, so that the sealing strip 2 is tightly attached to the surface of the pipeline body 1, increasing the strength of the sealing strip 2 to the surface of the pipeline body 1, and preventing the sealing strip 2 from falling off the surface of the pipeline body 1 due to environmental humidity and other issues. After being vibrated, the sealing strip 2 is pressed by the spring pads 14 and is not easy to detach from the surface of the pipeline body 1, thereby ensuring the sealing of the pipeline interface.

[0032] like Figures 1-4 As shown, each set of elastic components includes an arc-shaped slider 15, a spring 16, and an arc-shaped groove 9. The arc-shaped groove 9 is opened on one side of the inner wall of the positioning groove 7. The arc-shaped slider 15 is fixedly connected to the surface of the rotating plate 10 and slidably connected in the arc-shaped groove 9. The two ends of the spring 16 are respectively fixedly connected to the upper end of the arc-shaped slider 15 and one side of the inner wall of the arc-shaped groove 9.

[0033] In this embodiment: when the inclined push block 8 is not in contact with the rotating plate 10, the rotating plate 10 drives the arc-shaped slider 15 to slide in the arc-shaped groove 9 by the elastic force of the spring 16. The rotating plate 10 rotates with the rotating rod 12, causing the positioning plate 13 to drive the spring pad 14 to detach from the surface of the sealing strip 2. The state when the positioning plate 13 is tilted up is the state when the spring pad 14 is not installed.

[0034] like Figures 1-4 As shown, spring pads 14 are fixedly connected to the surfaces of multiple positioning plates 13.

[0035] In this embodiment: the spring pad 14 has a certain elasticity. When the spring pad 14 comes into contact with the sealing strip 2, it tightly adheres the sealing strip 2 to the surface of the pipe body 1.

[0036] like Figures 1-4 As shown, each of the two positioning grooves 7 has an annular threaded groove 6, which is connected to the two positioning grooves 7 respectively. Each of the two annular threaded grooves 6 has a threaded push block 5 threadedly connected to it.

[0037] In this embodiment: When the threaded push block 5 rotates, it drives the inclined push block 8 to slide in the positioning groove 7. The inclined push block 8 contacts the surface of the rotating plate 10, and the rotating plate 10 rotates by the rotating rod 12. This process overcomes the elastic force of the spring 16. When the inclined push block 8 slides out of the positioning groove 7, the rotating plate 10 is driven to rotate by the rotating rod 12 under the elastic force of the spring 16, and the spring pad 14 is separated from the surface of the sealing strip 2.

[0038] like Figures 1-4 As shown, each of the two threaded push blocks 5 has a T-shaped groove, and multiple T-shaped limit blocks 11 are slidably connected in each of the two T-shaped grooves. The multiple T-shaped limit blocks 11 are fixed to the surfaces of multiple inclined push blocks 8 respectively.

[0039] In this embodiment: the T-slot is used to connect the T-shaped limiting block 11. The T-shaped limiting block 11 is fixedly connected to the surface of the inclined push block 8. When the threaded push block 5 moves, it drives the inclined push block 8 to move.

[0040] like Figures 1-4 As shown, positioning screws 4 are fixedly connected to the surfaces of both threaded push blocks 5.

[0041] In this embodiment: the positioning screw 4 facilitates the rotation of the threaded push block 5 within the annular threaded groove 6. The surface of the positioning screw 4 is provided with anti-slip texture, which facilitates the rotation of the positioning screw 4.

[0042] like Figures 1-4 As shown, the surfaces of the multiple rotating plates 10 are all provided with arc-shaped surfaces.

[0043] In this embodiment, the arc-shaped surface is designed to prevent jamming when the inclined push block 8 contacts the rotating plate 10.

[0044] In use, two annular blocks 3 are respectively fitted onto the circumferential surfaces of two pipe bodies 1, and the two pipe bodies 1 are joined together. After joining, a sealing strip 2 is applied to the joint of the two pipe bodies 1. After application, wait for a certain period of time for the sealing strip 2 to cool down. Then, rotate the positioning screw 4, which drives the threaded push block 5 to move in the annular threaded groove 6. The threaded push block 5 drives the inclined push block 8 to move in the positioning groove 7. The positioning groove 7 pushes the rotating plate 10. The rotating plate 10 drives the spring pad 14 to press against the surface of the sealing strip 2 through the positioning plate 13, so that the sealing strip 2 is tightly attached to the surface of the pipe body 1. By using this device, multiple spring pads 14 press together on the surface of the sealing strip 2, so that the sealing strip 2 is tightly attached to the surface of the pipe body 1, increasing the strength of the sealing strip 2 on the surface of the pipe body 1, and preventing the sealing strip 2 from falling off the surface of the pipe body 1 due to environmental humidity and other issues. After being vibrated, the sealing strip 2 is pressed by the spring pads 14 and is not easy to detach from the surface of the pipe body 1, thus ensuring the sealing of the pipe network interface.

[0045] 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 seismic-resistant municipal pipeline interface sealing device, characterized in that, include: The pipe body (1) has two parts, and the pipe openings of the two pipe bodies (1) are connected; A sealing strip (2) is fixedly connected to the surface of the two pipe bodies (1); Two annular blocks (3) are provided, and the two annular blocks (3) are slidably connected to the surfaces of the two pipe bodies (1); The positioning components are provided in multiple sets, and the multiple sets of positioning components are respectively located in two annular blocks (3). Each set of positioning components includes a rotating plate (10), a positioning groove (7), an inclined push block (8), a rotating rod (12), a positioning plate (13), and two sets of elastic components. The positioning groove (7) is opened in the annular block (3). The rotating plate (10) is rotatably connected to the positioning groove (7) through the rotating rod (12). The inclined push block (8) is slidably connected to the positioning groove (7). The positioning plate (13) is fixedly connected to the surface of the rotating plate (10). The two sets of elastic components are both located in the positioning groove (7) and are connected to the rotating plate (10).

2. The earthquake-resistant municipal pipeline interface sealing device according to claim 1, characterized in that: Each set of elastic components includes an arc-shaped slider (15), a spring (16), and an arc-shaped groove (9). The arc-shaped groove (9) is opened on one side of the inner wall of the positioning groove (7). The arc-shaped slider (15) is fixedly connected to the surface of the rotating plate (10). The arc-shaped slider (15) is slidably connected in the arc-shaped groove (9). The two ends of the spring (16) are respectively fixedly connected to the upper end of the arc-shaped slider (15) and one side of the inner wall of the arc-shaped groove (9).

3. The earthquake-resistant municipal pipeline interface sealing device according to claim 2, characterized in that: Each of the multiple positioning plates (13) has a spring pad (14) fixedly connected to its surface.

4. The earthquake-resistant municipal pipeline interface sealing device according to claim 3, characterized in that: Both of the positioning grooves (7) are provided with annular threaded grooves (6), and the two annular threaded grooves (6) are respectively connected to the two positioning grooves (7). Both annular threaded grooves (6) are threadedly connected with threaded push blocks (5).

5. The earthquake-resistant municipal pipeline interface sealing device according to claim 4, characterized in that: Both of the threaded push blocks (5) have T-slots, and multiple T-shaped limit blocks (11) are slidably connected in both T-slots. The multiple T-shaped limit blocks (11) are respectively fixed to the surfaces of multiple inclined push blocks (8).

6. The earthquake-resistant municipal pipeline interface sealing device according to claim 5, characterized in that: The surfaces of both threaded push blocks (5) are fixedly connected with positioning screws (4).

7. The earthquake-resistant municipal pipeline interface sealing device according to claim 6, characterized in that: The surfaces of all of the rotating plates (10) are provided with arc-shaped surfaces.

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