Sealing structure applied to pipeline bell and spigot joint

Abstract

The utility model relates to the technical field of pipeline sealing, in particular to a sealing structure applied to a pipeline bell-and-spigot joint, which comprises a plurality of pipeline bodies, a bell mouth is arranged at one end of each pipeline body, a spigot is arranged at the other end of each pipeline body, the bell mouth of each pipeline body is connected with the spigot of the adjacent pipeline body in an inserted mode, and the spigot of each pipeline body is connected with the spigot of the adjacent pipeline body. A socket is arranged in the socket, a sealing ring is arranged outside the socket in a sleeving manner, the sealing ring abuts against the socket, a reinforcing rib is fixedly connected to the socket, a clamping groove is formed in the inner wall of the sealing ring, the reinforcing rib is clamped with the clamping groove, and two grooves are formed in the outer wall of the sealing ring; the reinforcing ribs are additionally arranged at the bell mouth, the strength of the bell mouth can be enhanced, meanwhile, the reinforcing ribs are matched with the grooves of the sealing ring, the sealing ring can be prevented from slipping, the two grooves are formed in the sealing ring, fine sand and the like generated when the bell mouth is connected with the spigot in an inserted mode can be collected, and the outer wall of the sealing ring makes full contact with the inner wall of the bell mouth; therefore, the sealing performance of the sealing ring is improved.

Description

Technical Field

[0001] The utility model relates to a sealing structure, in particular to a sealing structure applied to a pipe socket joint, belonging to the technical field of pipe sealing. Background Art

[0002] In the construction of municipal water supply and drainage projects, socket-and-spigot concrete pipes are often used, such as drainage pipes in rainwater drainage pipe systems and sewage treatment systems. When the concrete pipes are connected section by section, the socket of the previous pipe is inserted into the spigot of the next pipe. In order to prevent the water in the pipe from leaking from the interface between adjacent pipes and damaging the roadbed structure, a rubber sealing ring is currently commonly used between the outer wall of the spigot and the inner wall of the socket of the concrete pipe.

[0003] However, the sealing ring of the traditional pipe socket joint is usually directly mounted on the outer wall of the socket, and lacks a structure to fix the auxiliary sealing ring, which may cause the sealing ring to shift or deform during the connection of the two pipes, resulting in a loose seal at the connection between the two pipes, thereby affecting the sealing and safety of the entire pipeline system. Utility Model Content

[0004] The purpose of the present invention is to provide a sealing structure for pipe socket joints in order to solve the above problems. By adding reinforcing ribs to the socket, not only the strength of the socket can be enhanced, but the reinforcing ribs cooperate with the grooves of the sealing ring to prevent the sealing ring from slipping. There are two grooves on the sealing ring, which can collect fine sand and other debris when the socket and the spigot are plugged in, so that the outer wall of the sealing ring is in full contact with the inner wall of the socket, thereby increasing the sealing performance of the sealing ring.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a sealing structure applied to the pipe socket joint, comprising a plurality of pipe bodies, one end of the pipe body is provided with a socket, the other end of the pipe body is provided with a spigot, the socket of the pipe body is plugged into the spigot of the adjacent pipe body, the outer sleeve of the spigot is provided with a sealing ring, the sealing ring is in contact with the socket, a reinforcing rib is fixedly connected to the spigot, the inner wall of the sealing ring is provided with a card groove, the reinforcing rib is engaged with the card groove, and the outer wall of the sealing ring is provided with two grooves.

[0006] Preferably, the socket is a trumpet-shaped structure, and the radius of the socket is larger than the radius of the plug.

[0007] Preferably, the end of the socket is in a stepped structure, and the sealing ring is in an "L"-shaped structure as a whole.

[0008] Preferably, the card slot is a semicircular structure, and the inner diameter of the sealing ring is larger than the inner diameter of the socket.

[0009] Preferably, the outer portion of the socket is sleeved with a steel ring, and the steel ring and the socket are fixed by expansion bolts.

[0010] Preferably, four countersunk holes are provided on the steel ring, and the expansion bolts are installed in the corresponding countersunk holes.

[0011] Preferably, a sealing cover is installed in the countersunk hole, and the inner wall of the sealing cover contacts the expansion bolt.

[0012] The beneficial effects of the present invention are as follows: a socket is provided at one end of the pipe body, and a plug is provided at the other end of the pipe body, the socket of the pipe body is plugged into the plug of the adjacent pipe body, a sealing ring is provided on the outer sleeve of the plug, the sealing ring is in contact with the socket, a reinforcing rib is fixedly connected to the plug, the inner wall of the sealing ring is provided with a card groove, the reinforcing rib is engaged with the card groove, and two grooves are provided on the outer wall of the sealing ring; by adding reinforcing ribs to the socket, not only the strength of the socket can be enhanced, but also the reinforcing rib cooperates with the groove of the sealing ring to prevent the sealing ring from slipping, and two grooves are provided on the sealing ring, which can collect fine sand and the like when the socket and the plug are plugged in, so that the outer wall of the sealing ring is in full contact with the inner wall of the socket, thereby increasing the sealing performance of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the socket and the spigot of the present invention;

[0015] Figure 3 for Figure 2 An enlarged schematic diagram of the structure of section A is shown;

[0016] Figure 4 The figure is a schematic diagram of the connection structure between the expansion bolt and the socket of the utility model.

[0017] In the figure: 1. Pipe body; 2. Socket; 3. Socket; 4. Reinforcement rib; 5. Sealing ring; 6. Steel ring; 7. Sealing cover; 8. Expansion bolt; 9. Groove; 10. Slot; 11. Countersunk hole. DETAILED DESCRIPTION

[0018] The following further illustrates the technical solution of the present invention through the use of specific embodiments in conjunction with the accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images, and should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0019] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] See also Figures 1-4 As shown, a sealing structure applied to pipe socket joints includes a plurality of pipe bodies 1, wherein one end of the pipe body 1 is provided with a socket 2, and the other end of the pipe body 1 is provided with a plug 3, the socket 2 of the pipe body 1 is plugged into the plug 3 of the adjacent pipe body 1, the outer sleeve of the plug 3 is provided with a sealing ring 5, the sealing ring 5 is in contact with the socket 2, a reinforcing rib 4 is fixedly connected to the plug 3, the inner wall of the sealing ring 5 is provided with a card groove 10, the reinforcing rib 4 is engaged with the card groove 10, and the outer wall of the sealing ring 5 is provided with two grooves 9.

[0021] As a technical optimization solution of the present invention, the socket 2 is a trumpet-shaped structure, and the radius of the socket 2 is larger than the radius of the plug 3; it has a guiding effect on the connection between the socket 2 and the plug 3, and can make the connection between the two tighter and more secure.

[0022] As a technical optimization solution of the present invention, the end of the socket 3 is in a stepped structure, the sealing ring 5 is in an "L"-shaped structure as a whole, the slot 10 is in a semicircular structure, and the inner diameter of the sealing ring 5 is larger than the inner diameter of the socket 3; the end of the socket 3 is in a stepped structure to facilitate the installation of the sealing ring 5, while making the installation of the sealing ring 5 more secure, and increasing the contact area between the sealing ring 5 and the socket 2, so that the sealing ring 5 and the socket 2 fit more closely, and the sealing effect is better.

[0023] As a technical optimization solution of the present invention, the outer part of the socket 2 is provided with a steel ring 6, and the steel ring 6 and the socket 2 are fixed by expansion bolts 8. Four countersunk holes 11 are opened on the steel ring 6, and the expansion bolts 8 are installed in the corresponding countersunk holes 11; the setting of the steel ring 6 increases the strength of the socket 2, and prevents the socket 2 from being broken due to excessive extrusion or collision during the plug-in process.

[0024] As a technical optimization solution of the present invention, a sealing cover 7 is installed in the countersunk hole 11, and the inner wall of the sealing cover 7 is in conflict with the expansion bolt 8; the sealing cover 7 is snapped into the countersunk hole 11 to prevent external soil, rainwater, etc. from entering the countersunk hole 11 and causing the expansion bolt 8 to rust, so the sealing cover 7 has a good protective effect on the expansion bolt 8.

[0025] When the utility model is in use, the sealing ring 5 is first sleeved on the outer wall of the socket 3. When installing, the card groove 10 on the inner wall of the sealing ring 5 needs to be engaged with the reinforcing rib 4. The reinforcing rib 4 supports and positions the sealing ring 5, which can prevent the sealing ring 5 from being displaced or deformed during the process of plugging the socket 2 and the socket 3 of the two pipe bodies 1. Therefore, the stability and firmness of the installation of the sealing ring 5 are increased, and the sealing effect of the sealing ring 5 is better. When the steel ring 6 is installed on the outside of the socket 2, a threaded sleeve can be installed on the socket 2, and then The steel ring 6 is installed on the outside of the socket 2, and then the expansion bolt 8 is passed through the countersunk hole 11 on the steel ring 6 and connected with the threaded sleeve on the socket 2, so that the end of the expansion bolt 8 is pressed against the steel ring 6, thereby installing the steel ring 6 on the outer wall of the socket 2. The setting of the steel ring 6 can increase the strength of the socket 2 and prevent the socket 2 from being broken due to excessive extrusion or collision during the plug-in process; then the sealing cover 7 is snapped into the countersunk hole 11 to prevent external mud, rainwater, etc. from entering the countersunk hole 11 and causing the expansion bolt 8 to rust. This sealing cover 7 has a good protective effect on the expansion bolt 8; when the two pipe bodies 1 are docked, the second pipe body 1 is pushed toward the socket 2 of the first pipe body 1, and the socket 3 of the second pipe body 1 is plugged into the socket 2 of the first pipe body 1. Since the socket 2 is a trumpet-shaped structure and the sealing ring 5 is provided with a slope structure, during the pushing process, the socket 2 and the outer wall of the sealing ring 5 will conflict more and more tightly, thereby making the plugging of the two pipe bodies 1 more firm and stable, and at the same time making the sealing performance of the sealing ring 5 better; since there are two grooves 9 on the outer wall of the sealing ring 5, during the plugging process of the two pipe bodies 1, the inner wall of the socket 2 of the first pipe body 1 and the outer wall of the sealing ring 5 produce friction, which will produce some tiny dust or impurities. As the socket 3 of the second pipe body 1 drives the sealing ring 5 to move, these dust and impurities fall into the groove 9, thereby preventing dust and impurities from entering the sealing area and affecting the sealing effect. Therefore, the groove 9 plays a role in collecting residual dust and keeping the sealing area clean to a certain extent.

[0026] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A sealing structure for a pipe socket joint, comprising a plurality of pipe bodies (1), characterized in that: One end of the pipe body (1) is provided with a socket (2), and the other end of the pipe body (1) is provided with a plug (3). The socket (2) of the pipe body (1) is plugged into the plug (3) of the adjacent pipe body (1). A sealing ring (5) is provided on the outside of the plug (3). The sealing ring (5) contacts the socket (2). A reinforcing rib (4) is fixedly connected to the plug (3). The inner wall of the sealing ring (5) is provided with a card groove (10). The reinforcing rib (4) is engaged with the card groove (10). Two grooves (9) are provided on the outer wall of the sealing ring (5).

2. A sealing structure for a pipe socket joint according to claim 1, characterized in that: The socket (2) is a trumpet-shaped structure, and the radius of the socket (2) is greater than the radius of the plug (3).

3. The sealing structure for a pipe socket joint according to claim 2, characterized in that: The end of the socket (3) is in a stepped structure, and the sealing ring (5) is in an "L"-shaped structure as a whole.

4. The sealing structure for a pipe socket joint according to claim 1, characterized in that: The slot (10) is in a semicircular structure, and the inner diameter of the sealing ring (5) is larger than the inner diameter of the socket (3).

5. The sealing structure for a pipe socket joint according to claim 2, characterized in that: The outside of the socket (2) is provided with a steel ring (6), and the steel ring (6) and the socket (2) are fixed by expansion bolts (8).

6. The sealing structure for a pipe socket joint according to claim 5, characterized in that: Four countersunk holes (11) are provided on the steel ring (6), and the expansion bolts (8) are installed in the corresponding countersunk holes (11).

7. The sealing structure for a pipe socket joint according to claim 6, characterized in that: A sealing cover (7) is installed in the countersunk hole (11), and the inner wall of the sealing cover (7) contacts the expansion bolt (8).

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