Sealing structure of drainage pipeline

Abstract

The utility model discloses a drainage pipeline sealing structure which comprises a plurality of drainage main pipes, sealing rings are arranged at one ends of the drainage main pipes in the circumferential direction of the drainage main pipes, supporting rings are arranged at the other ends of the drainage main pipes in the circumferential direction of the drainage main pipes, and the supporting rings are made of elastic materials and embedded in the corresponding ends of the drainage main pipes. An annular sealing groove is formed in the supporting ring in the circumferential direction of the supporting ring, the sealing ring is made of metal materials, one end of the supporting ring is fixed to the main drainage pipes through concrete pouring, the other end of the supporting ring is matched with the sealing groove, and after every two adjacent main drainage pipes are in butt joint, the sealing ring can be tightly clamped into the corresponding sealing groove. According to the utility model, the sealing effect between two adjacent drainage main pipes can be ensured, so that the overall sealing stability of the drainage pipeline is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal facilities field, especially a kind of drainage pipeline sealing structure. BACKGROUND

[0002] Drainage pipeline refers to the system that the pipe and its accessory facilities of collection and discharge sewage, waste water and rainwater, municipal drainage pipeline refers to the rainwater, sewage pipeline under municipal road, and it is usually called municipal drainage pipeline in engineering.

[0003] The drainage pipeline in the related art usually includes a plurality of drainage main pipes of concrete material, one end of the drainage main pipe is provided with a step ring, the other end is provided with a step groove, when two drainage main pipes are inserted and matched, the step ring can be tightly inserted into the step groove, so as to realize the sealing between two drainage pipelines.

[0004] However, during the transportation, hoisting and pipe-jacking construction of the drainage main pipe, the step ring on the drainage main pipe is prone to knocking and other problems, which damages the step ring and affects the sealing effect between the adjacent two drainage main pipes, which needs to be improved. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a drainage pipeline sealing structure, which can ensure the sealing effect between adjacent two drainage main pipes.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a drainage pipeline sealing structure, comprising a plurality of drainage main pipes, one end of the drainage main pipe is provided with a sealing ring along its circumference, the other end is provided with a support ring along its circumference, the support ring is made of elastic material, the support ring is inlaid in the corresponding end of the drainage main pipe, and an annular sealing groove is arranged on the support ring along its circumference, the sealing ring is made of metal material, one end of the support ring is fixed on the drainage main pipe by concrete pouring, the other end is matched with the sealing groove, when the adjacent two drainage main pipes are butt-jointed, the sealing ring can be tightly clamped into the corresponding sealing groove.

[0007] In a preferred example, the utility model can be further configured as: one end of the sealing ring away from the drainage main pipe is provided with a step surface, the support ring is provided with a step groove matched with the step surface.

[0008] In a preferred example, the utility model can be further configured as: the step groove is fixedly connected with an elastic airbag ring at the groove bottom, the airbag ring can be inflated under the extrusion action of the step surface, and abuts tightly with the inner side wall of the step groove and the outer side wall of the sealing ring.

[0009] In a preferred embodiment, the present invention can be further configured such that: the outer wall of the main drain pipe is provided with an injection hole, the injection hole passes through the support ring and communicates with the sealing groove, so that the sealant can enter the sealing groove.

[0010] In a preferred embodiment, the present invention can be further configured such that: the inner sidewall of the sealing groove is provided with an annular glue injection channel along its circumference, and the glue injection channel is connected to the glue injection hole.

[0011] In a preferred embodiment, the present invention can be further configured such that a sealing plug is threaded into the glue injection hole.

[0012] In a preferred embodiment, the present invention can be further configured such that the main drainage pipe includes a steel reinforcement cage and a concrete layer, and the support ring is welded and fixed to the steel reinforcement cage.

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. The sealing ring and the support ring are interlocked to form a sealing groove, thereby achieving a seal between the two drainage pipes. Since the sealing ring is made of metal and the support ring is made of elastic material and is embedded in the corresponding end of the drainage pipe, the sealing ring and the support ring are not easily damaged during transportation, hoisting and installation of the drainage pipe, thus ensuring the sealing effect between the two adjacent drainage pipes.

[0015] 2. Since the sealant can be injected into the sealing groove through the injection hole, it effectively improves the sealing effect between the sealing ring and the support ring, thereby ensuring the sealing stability and connection strength between two adjacent drainage main pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0017] Figure 2 This is a cross-sectional view of the main drainage pipe in this embodiment;

[0018] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0019] Figure 4 yes Figure 2 Enlarged schematic diagram of region B in the middle.

[0020] Reference numerals: 1. Drainage main pipe; 11. Reinforcing steel cage; 12. Concrete layer; 2. Sealing ring; 3. Support ring; 4. Sealing groove; 5. Step surface; 6. Step groove; 7. Airbag ring; 8. Injection hole; 9. Injection channel; 10. Sealing plug. Detailed Implementation

[0021] The utility model will be further explained in detail below in combination with the drawings.

[0022] Referring to Figure 1 , Figure 2 A drainage pipeline sealing structure comprises a plurality of drainage main pipes 1, a sealing ring 2 arranged on one end of the drainage main pipe 1 in the circumferential direction, and a support ring 3 arranged on the other end of the drainage main pipe 1 in the circumferential direction. The support ring 3 is made of elastic material, is inlaid in the corresponding end of the drainage main pipe 1, and the end face of the support ring 3 is flush with the corresponding end face of the drainage main pipe 1. Meanwhile, an annular sealing groove 4 is arranged on the end face of the support ring 3 in the circumferential direction.

[0023] Referring to Figure 2 , Figure 3 , Figure 4 The sealing ring 2 is made of iron-based material or metal material such as stainless steel, one end of the support ring 3 is fixed on the drainage main pipe 1 through concrete pouring, and the other end is matched with the sealing groove 4. When the two adjacent drainage main pipes 1 are butted, the sealing ring 2 on one of the drainage main pipes 1 can be tightly clamped into the sealing groove 4 on the other drainage main pipe 1 to realize the sealing between the two adjacent drainage main pipes 1.

[0024] Since the sealing ring 2 is made of metal material and the support ring 3 is made of elastic material and is inlaid in the corresponding end of the drainage main pipe 1, the sealing ring 2 and the support ring 3 are not easy to be damaged during the transportation, hoisting and installation construction of the drainage main pipe 1, thereby ensuring the sealing effect between the two adjacent drainage main pipes 1.

[0025] Referring to Figure 2 , Figure 3 , Figure 4 The drainage main pipe 1 comprises a steel reinforcement framework 11 and a concrete layer 12, and the support ring 3 is welded and fixed with the steel reinforcement framework 11, that is, the connection position of the steel reinforcement framework 11 and the support ring 3 can be poured with concrete to ensure the connection stability of the support ring 3 and the drainage main pipe 1.

[0026] Referring to Figure 2 , Figure 3 , Figure 4 A stepped face 5 is integrally formed on the end of the sealing ring 2 away from the drainage main pipe 1, and a stepped groove 6 matched with the stepped face 5 is arranged on the support ring 3 to improve the sealing effect between the sealing ring 2 and the support ring 3. Meanwhile, the groove bottom of the stepped groove 6 is fixedly connected with an elastic air bag ring 7, the air bag ring 7 can be inflated under the extrusion of the stepped face 5 and abuts tightly with the inner side wall of the stepped groove 6 and the outer side wall of the sealing ring 2, thereby further improving the sealing effect between the sealing ring 2 and the support ring 3.

[0027] Referring to Figure 2 , Figure 3、 Figure 4 The outer side wall of the drainage main pipe 1 is provided with a glue injection hole 8, the glue injection hole 8 passes through the support ring 3 and communicates with the sealing groove 4, the inner side wall of the sealing groove 4 is provided with an annular glue injection flow channel 9 along the circumference thereof, and the glue injection flow channel 9 communicates with the glue injection hole 8, so that the sealing glue can enter the sealing groove 4 through the glue injection hole 8 and the glue injection flow channel 9, thereby improving the sealing stability and connection stability between the sealing ring 2 and the support ring 3. At the same time, the glue injection hole 8 is threadedly connected with a sealing plug 10, so as to realize the plugging protection of the glue injection hole 8 and avoid the risk of blocking the glue injection hole 8 by sundries during the transportation of the drainage main pipe 1.

[0028] The specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A sewer sealing structure comprising a plurality of sewer mains (1), characterized in that: One end of the drainage main pipe (1) is provided with a sealing ring (2) along its circumference, and the other end is provided with a support ring (3) along its circumference, the support ring (3) is made of elastic material, the support ring (3) is inlaid in the corresponding end of the drainage main pipe (1), and the support ring (3) is provided with an annular sealing groove (4) along its circumference, the sealing ring (2) is made of metal material, one end of the support ring (3) is fixed on the drainage main pipe (1) by concrete pouring, the other end matches the sealing groove (4), and when two adjacent drainage main pipes (1) are connected, the sealing ring (2) can be tightly clamped in the corresponding sealing groove (4).

2. A drain pipe sealing structure according to claim 1, wherein: The sealing ring (2) is provided with a stepped surface (5) away from the drainage main pipe (1), and the support ring (3) is provided with a stepped groove (6) matched with the stepped surface (5).

3. A drain pipe sealing structure according to claim 2, wherein: The stepped groove (6) is fixedly connected with an elastic air bag ring (7) at the bottom, the air bag ring (7) can be inflated under the extrusion of the stepped surface (5), and abuts tightly with the inner side wall of the stepped groove (6) and the outer side wall of the sealing ring (2).

4. A drain pipe sealing structure according to claim 1, wherein: The outer side wall of the drainage main pipe (1) is provided with a glue injection hole (8), the glue injection hole (8) passes through the support ring (3) and communicates with the sealing groove (4), so that the sealing glue can enter the sealing groove (4).

5. A drain pipe sealing structure according to claim 4, wherein: The inner side wall of the sealing groove (4) is provided with an annular glue injection flow channel (9) along its circumference, and the glue injection flow channel (9) communicates with the glue injection hole (8).

6. A drain pipe sealing structure according to claim 4, wherein: The glue injection hole (8) is threadedly connected with a sealing plug (10).

7. A drain pipe sealing structure according to claim 1, wherein: The drainage main pipe (1) comprises a steel reinforcement cage (11) and a concrete layer (12), and the support ring (3) is welded with the steel reinforcement cage (11).

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