Anti-leakage connecting structure for urban sewage pipeline

Abstract

The utility model discloses an anti-leakage connecting structure for urban sewage pipelines, which belongs to the field of pipeline connection protection and comprises rubber parts arranged on adjacent pipelines, outer rubber rings and inner rubber rings which are respectively positioned on the outer sides and the inner sides of the pipelines are arranged on the rubber parts, outer recesses are formed in the outer rubber rings, and the end surfaces of the inner rubber rings are raised and face the axes of the pipelines. And the end part of the inner rubber ring is movably provided with a protective piece which is circumferentially arranged. By means of the I-shaped rubber part, the outer rubber ring and the inner rubber ring conduct end opening hoop type closed butt joint on a pipeline, the protruding arc-shaped inner rubber ring can have the thickening and anti-scratching effect, the protection part is matched to prevent collision of sharp objects, the overall protection capacity of the rubber part is improved, and the service life of the pipeline is prolonged. And the outer recess can play a role in resisting pressure on soil buried outside the pipeline, so that when the soil pressure acts on the outer rubber ring, the connecting and sealing capability of the outer rubber ring on the adjacent pipeline is improved, and excellent sealing and leakage-proof effects are kept inside and outside the pipeline.

Description

Technical Field

[0001] This utility model relates to pipeline connection protection, and more particularly to a leak-proof connection structure for urban sewage pipelines. Background Technology

[0002] Urban sewage pipes typically use PVC pipes, PE pipes, or concrete pipes. In order to meet the capacity requirements for collecting sewage and discharging it in a unified manner, concrete pipes are often used for drainage due to their large capacity, corrosion resistance, wear resistance, and high efficiency.

[0003] According to the public announcement number: CN116146798A, the public announcement date: 2023-05-23, a segmented anti-leakage connection device for concrete sewage pipes and its usage method are disclosed.

[0004] In the prior art, including the aforementioned patent, rubber rings are typically used to assemble adjacent concrete pipes, with the rubber ring positioned in the gap between the overlapping sections of the pipes to achieve a sealing function. However, due to the varying amounts of debris transported in the pipes, including sharp objects, the edges of the sealing rubber ring can be scratched, causing internal damage and exacerbating wear. This also affects the seal between the rubber ring and the concrete pipe. Furthermore, sludge deposited in the pipes can compress the rubber ring, altering and penetrating the gap between the rubber ring and the concrete pipe, leading to sewage leakage and impacting the safety of the surrounding soil. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a leak-proof connection structure for urban sewage pipelines, aiming to solve the problems mentioned above.

[0006] Technical solution: A leak-proof connection structure for urban sewage pipes, including a pipe and a rubber component placed on an adjacent pipe. The rubber component is provided with an outer rubber ring and an inner rubber ring located on the outer and inner sides of the pipe, respectively. The outer rubber ring has an outer recess, and the end face of the inner rubber ring is raised and faces the pipe axis.

[0007] The inner rubber ring end is movably provided with a circumferentially arranged protective component, and a protective edge located on the outer side of the inner rubber ring end is fixedly installed on the protective component.

[0008] Preferably, the rubber component has symmetrically arranged side protrusions fixedly installed on it, and the end of the pipe has a side opening for the side protrusions to fit into.

[0009] Preferably, a skeleton component is fixedly installed in the rubber component, and the skeleton component is provided with an outer arc plate that fits into the outer recess.

[0010] Preferably, the rubber component has a movable cavity, and the skeleton component is further provided with a guide rod that moves radially within the movable cavity.

[0011] Preferably, an inner arc plate is fixedly installed at the end of the guide rod, and a rod plate connected to the inner arc plate is fixedly installed on the protective component.

[0012] Preferably, a pressure block is fixedly installed at the end of the outer arc plate, and an opening is provided on the side wall of the pipe. The pressure block moves with the deformation of the outer arc plate and squeezes the inner side wall of the outer rubber ring into the opening.

[0013] Preferably, the inner arc plate is pushed by the guide rod, causing the apex of the inner rubber ring to bulge towards the pipe axis.

[0014] Preferably, the side protrusion has an air port connected to the movable cavity. Under deformation, the inner rubber ring squeezes the air in the movable cavity and drains it into the air port.

[0015] Beneficial effects: The I-shaped rubber components allow the outer and inner rubber rings to clamp and seal the pipe ends, ensuring both connection and sealing. The raised, arc-shaped inner rubber ring provides a thicker layer, increasing its resistance to wear and scratches from sewage. Combined with protective components, it protects against impacts from sharp objects, enhancing the overall protection of the rubber components. The external concave shape also provides pressure resistance to the soil surrounding the pipe. When soil pressure acts on the outer rubber ring, its sealing ability with adjacent pipes is improved, achieving excellent sealing and leak-proof performance both inside and outside the pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly of adjacent pipes and rubber parts provided by this utility model;

[0017] Figure 2 A side sectional view of the adjacent pipes after assembly with rubber parts, protective parts and skeleton parts provided by this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A;

[0019] Figure 4 An exploded view of the rubber parts, protective parts, and skeleton parts provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Pipe; 11. Side opening; 12. Edge opening; 2. Rubber parts; 21. Outer rubber ring; 22. Inner rubber ring; 23. Outer recess; 24. Side protrusion; 25. Movable cavity; 26. Air port; 3. Protective parts; 31. Edge protector; 32. Rod; 4. Skeleton parts; 41. Outer arc plate; 42. Guide rod; 43. Inner arc plate; 44. Pressure block. Detailed Implementation

[0022] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1-4 As shown, a leak-proof connection structure for urban sewage pipes includes a pipe 1 and a rubber component 2 placed on an adjacent pipe 1. The rubber component 2 is provided with an outer rubber ring 21 and an inner rubber ring 22 located on the outer and inner sides of the pipe 1, respectively. The outer rubber ring 21 has an outer recess 23, and the end face of the inner rubber ring 22 is raised and faces the axis of the pipe 1.

[0024] The inner rubber ring 22 has a protective component 3 arranged in a circular pattern at its end, and a protective edge 31 located on the outer side of the end of the inner rubber ring 22 is fixedly installed on the protective component 3.

[0025] Specifically, the rubber component 2 is made of corrosion-resistant and wear-resistant rubber. The material of the rubber ring used in the prior art will not be described in detail here. The rubber component 2 is located at the port of the adjacent pipe 1 for connection and installation, which makes the connection process of pipe 1 simpler.

[0026] Furthermore, the annular rubber part 2 has an I-shaped cross-section, and its two ends are clamped to the end of the pipe 1. The protective part 3 and the edge protector 31 make their cross-sections resemble a mushroom cap. The purpose is to use the arc at the end of the protective part 3 to drain sewage, while also preventing sharp objects from hitting and scratching the end of the inner rubber ring 22. Both the protective part 3 and the edge protector 31 are made of corrosion-resistant stainless steel, which is a material of existing technology and will not be described in detail here.

[0027] Furthermore, the edge protector 31 is clamped to the outside of the inner rubber ring 22 to achieve a protective effect, and one of the edge protectors 31 is fitted between the inner rubber ring 22 and the inner wall of the pipe 1. The inner rubber ring 22 of the rubber wraps around the entire edge protector 31 to prevent sewage from seeping in from the edge protector 31.

[0028] The I-shaped rubber component 2 is used to clamp and seal the outer rubber ring 21 and inner rubber ring 22 to the pipe 1, so that the rubber component 2 can achieve the connection and sealing effect. The raised arc-shaped inner rubber ring 22 has a thickening effect, which increases the ability of the inner rubber ring 22 to be abraded or scratched by sewage. It can also divert the sewage flowing inside the pipe 1 and reduce the sewage seepage into the gap between the inner rubber ring 22 and the inner wall of the pipe 1. At the same time, the protective component 3 is used to prevent impact from sharp objects, which improves the overall protection of the rubber component 2. The external recess 23 can resist the pressure of the soil buried outside the pipe 1. When the soil pressure acts on the outer rubber ring 21, the connection and sealing ability of the outer rubber ring 21 to the adjacent pipe 1 is improved, so that the pipe 1 maintains excellent sealing and leakage prevention effect both inside and outside.

[0029] As another embodiment provided by the present utility model, symmetrically arranged side protrusions 24 are fixedly installed on the rubber part 2, and side ports 11 for fitting the side protrusions 24 are provided at the end of the pipe 1.

[0030] Specifically, the side protrusions 24 are rubber protrusions on the rubber part 2, and the annular side protrusions 24 have a horizontally placed trapezoidal cross-section.

[0031] With the two side protrusions 24, together with the outer rubber ring 21 and the inner rubber ring 22, presenting a king-shaped configuration, the side protrusions 24 function as the third layer for enhanced sealing. Moreover, the side protrusions 24 fitted in the side ports 11 make the connection of the pipe body 1 more stable. The horizontally placed trapezoid can also increase the difficulty of water infiltration from sewage or soil.

[0032] As another embodiment provided by the present utility model, a framework part 4 is fixedly installed in the rubber part 2, and outer arc pieces 41 which are in embedded and mating connection with the outer depressions 23 are arranged on the framework part 4.

[0033] Specifically, the framework part 4 is specifically a combination of elastic metal sheets, so that after part of the rubber part 2 is deformed by force, the deformation force can be transmitted to the elastic metal sheets on the framework part 4.

[0034] Furthermore, in the default state, the outer arc pieces 41 bulge towards the outer depressions 23, and the outer arc pieces 41 are embedded in the rubber of the outer rubber ring 21, so that the inner rubber ring 22 can quickly transmit force to the outer arc pieces 41.

[0035] The outer depressions 23 buried in the soil use their arc-shaped depressions to receive greater pressure, and transmit the pressure radially towards the axis until the force acts on the outer arc pieces 41 for absorption. Thereby, the pressure received by the rubber part 2 is relieved, reducing the impact of the pressure on the sealing around the rubber part 2 and ensuring the connection sealing performance of the pipe 1.

[0036] As another embodiment provided by the present utility model, a movable cavity 25 is provided in the rubber part 2, and guide rods 42 which move radially in the movable cavity 25 are also arranged on the framework part 4.

[0037] Specifically, the guide rods 42 are specifically hard metal rods, the material of which is in the prior art and will not be elaborated here. And the guide rods 42 are fixedly installed on the end faces of the outer arc pieces 41 and are symmetrically arranged.

[0038] The circumferentially arranged guide rods 42 are used to strengthen the framework of the rubber part 2, improving the overall hardness and compressive resistance of the rubber part 2. The movable cavity 25 can provide a moving space for the guide rods 42. During the process of the outer arc pieces 41 being stressed, they deform, and gradually become horizontal. Therefore, the guide rods 42 can receive the thrust generated by the deformation, enabling the guide rods 42 to move within the rubber part 2.

[0039] As another embodiment of this utility model, an inner arc plate 43 is fixedly installed at the end of the guide rod 42, and a rod plate 32 connected to the inner arc plate 43 is fixedly installed on the protective component 3.

[0040] Specifically, the rod 32 is a rigid metal rod, mainly in the form of a sheet, so that the protective part 3 has a larger protective area of ​​the inner rubber ring 22, and the arc apex of the inner arc plate 43 is arranged opposite to the arc apex of the outer arc plate 41 so that the inner arc plate 43 deforms and bends towards the axis after being subjected to force.

[0041] The inner arc plate 43 is pushed by the two radially moving guide rods 42, and the inner arc plate 43 is deformed and bent in the movable cavity 25. The inner arc plate 43 deforms towards the raised position of the inner rubber ring 22. The purpose is to increase the raised thickness of the inner rubber ring 22 and improve the wear resistance and scratch resistance.

[0042] As another embodiment of the present invention, a pressure block 44 is fixedly installed at the end of the outer arc plate 41, and a side opening 12 is opened on the side wall of the pipe 1. The pressure block 44 moves with the deformation of the outer arc plate 41 and squeezes the inner side wall of the outer rubber ring 21 into the side opening 12.

[0043] Specifically, the pressure block 44 is a protrusion at the end of the outer arc plate 41, and the protrusion faces the side wall of the pipe 1, and the edge 12 is an annular groove opened on the side wall of the pipe 1.

[0044] As the outer arc plate 41 is gradually brought horizontally under stress, the pressure block 44 moves closer to the side wall of the pipe 1 due to the displacement caused by the deformation force. The pressure block 44 also presses the inner side of the outer rubber ring 21, causing the inner side of the outer rubber ring 21 to bulge and insert the protruding rubber into the edge opening 12. This gives the outer rubber ring 21 and the pipe 1 an additional sealing function after being stressed. That is, the outer rubber ring 21 and the edge opening 12 can enhance the sealing effect of the rubber part 2 on the adjacent pipe 1.

[0045] As another embodiment of the present invention, the inner arc plate 43 is pushed by the guide rod 42, causing the arc top of the inner rubber ring 22 to bulge towards the axis of the pipe 1.

[0046] The inner arc plate 43 is bent by deformation so that its two ends are brought closer together, and the symmetrically arranged rods 32 pull the protective parts 3 on it closer together. On the one hand, the edge guard 31 can adapt to the displacement caused by the raised inner rubber ring 22. On the other hand, the protective position of the protective part 3 is changed, so that the end of the protective part 3 that originally had dirt accumulated on the edge will remove the dirt, reducing the situation where dirt accumulates for a long time and seeps into the inner rubber ring 22 and the inner wall of the pipe 1.

[0047] As another embodiment of this utility model, an air port 26 communicating with the movable cavity 25 is provided on the side protrusion 24. Under deformation, the inner rubber ring 22 squeezes the air in the movable cavity 25 and guides it into the air port 26.

[0048] Specifically, the air inlet 26 can receive the compressed airflow in the movable cavity 25 so that the air inlet 26 can act on the lateral protrusion 24 after being subjected to force.

[0049] As the protective components 3 come closer together, the air in the movable cavity 25 is squeezed at both ends of the inner rubber ring 22. Although some of the air acts on the cavity at the position of the inner arc plate 43, some of the compressed air diffuses radially into the air port 26. Therefore, the expanding air in the air port 26 causes the side protrusion 24 to expand, resulting in a stronger tightness between the side protrusion 24 and the side port 11, thereby improving the three-layer sealing effect and ensuring the sealing performance of the rubber component 2 to the pipe 1.

[0050] Working principle: The I-shaped rubber component 2 enables the outer rubber ring 21 and the inner rubber ring 22 to clamp and seal the pipe 1 at the port, so that the rubber component 2 can achieve the connection and sealing effect. The raised arc-shaped inner rubber ring 22 has a thickening effect, increasing the ability of the inner rubber ring 22 to withstand the wear or scratch of sewage. It can also divert the sewage flowing inside the pipe 1 and reduce the sewage seepage into the gap between the inner rubber ring 22 and the inner wall of the pipe 1. At the same time, the protective component 3 is used to prevent the impact of sharp objects, improving the overall protection of the rubber component 2. The outer recess 23 can resist the pressure of the soil buried outside the pipe 1. When the soil pressure acts on the outer rubber ring 21, the connection and sealing ability of the outer rubber ring 21 to the adjacent pipe 1 is improved. The two side protrusions 24, together with the outer rubber ring 21 and the inner rubber ring 22, form a king-shaped shape, so that the side protrusions 24 can act as a third layer of reinforced sealing.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A leak-proof connection structure for urban sewage pipelines, comprising a pipeline (1), characterized in that, It also includes a rubber component (2) placed on an adjacent pipe (1), wherein the rubber component (2) is provided with an outer rubber ring (21) and an inner rubber ring (22) located on the outside and inside of the pipe (1) respectively, the outer rubber ring (21) has an outer recess (23), and the end face of the inner rubber ring (22) is raised and faces the axis of the pipe (1); The inner rubber ring (22) is movably provided with a protective component (3) arranged in a circular pattern at its end, and a protective edge (31) located on the outer side of the end of the inner rubber ring (22) is fixedly installed on the protective component (3).

2. The anti-leakage connection structure for urban sewage pipelines according to claim 1, characterized in that, The rubber component (2) is fixedly installed with symmetrically arranged side protrusions (24), and the end of the pipe (1) is provided with a side opening (11) for the side protrusions (24) to fit into.

3. The anti-leakage connection structure for urban sewage pipelines according to claim 2, characterized in that, A skeleton component (4) is fixedly installed in the rubber component (2), and an outer arc plate (41) is provided on the skeleton component (4) to fit into the outer recess (23).

4. The anti-leakage connection structure for urban sewage pipelines according to claim 3, characterized in that, The rubber component (2) has a movable cavity (25), and the skeleton component (4) is also provided with a guide rod (42) that moves radially in the movable cavity (25).

5. The anti-leakage connection structure for urban sewage pipelines according to claim 4, characterized in that, An inner arc plate (43) is fixedly installed at the end of the guide rod (42), and a rod plate (32) connected to the inner arc plate (43) is fixedly installed on the protective component (3).

6. The anti-leakage connection structure for urban sewage pipelines according to claim 5, characterized in that, A pressure block (44) is fixedly installed at the end of the outer arc plate (41), and a side opening (12) is provided on the side wall of the pipe (1). The pressure block (44) moves with the deformation of the outer arc plate (41) and squeezes the inner side wall of the outer rubber ring (21) to embed into the side opening (12).

7. The anti-leakage connection structure for urban sewage pipelines according to claim 5, characterized in that, The inner arc plate (43) is pushed by the guide rod (42) so that the top of the inner rubber ring (22) bulges towards the axis of the pipe (1).

8. The anti-leakage connection structure for urban sewage pipelines according to claim 7, characterized in that, The side protrusion (24) is provided with an air port (26) connected to the movable cavity (25). Under deformation, the inner rubber ring (22) squeezes the air in the movable cavity (25) and draws it into the air port (26).

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