CN202401562U - Sealing connecting structure for bell end of plastic inspection shaft - Google Patents

Abstract

The utility model relates to a sealing connection structure of a plastic inspection well socket, which belongs to the field of municipal engineering. The utility model comprises an inspection well well seat, a socket, a sealing filler, a sealing ring, a hot-melt sealing belt and a plastic pipe. The socket is fixedly connected to the well seat of the inspection well. The plastic pipe is inserted into the socket, and the gap between the two is filled with sealing packing. A sealing ring is arranged on the top of the sealing packing, and the hot-melt sealing tape covers the sealing ring and seals the gap between the socket and the plastic pipe. The utility model has good connection flexibility, high connection strength, good reliability and easy guarantee of sealing performance. The socket of the socket is an inner cone structure, which has good socketability, convenient socket and strong adaptability, and can meet the connection of different types of plastic pipes of the same specification.

Description

A sealing connection structure of a plastic inspection well socket

technical field

The utility model relates to a sealing connection structure of a plastic inspection well socket, which belongs to the field of municipal engineering.

Background technique

Inspection wells are vertical shafts built at regular intervals for rainwater and sewage discharge pipes to connect pipelines with different diameters, directions and heights. They are mainly used by maintenance workers to regularly inspect and dredge pipes, It is one of the underground infrastructures of urban roads to prevent sludge and foreign matter and prevent pipeline blockage. Due to the light weight and corrosion resistance of plastic drainage pipes and plastic inspection wells, the rigidity of pipe rings can be designed according to needs, the joints are well sealed, and there is no leakage, which can effectively prevent groundwater pollution, and the construction speed, hydraulic conditions, and cost performance are excellent. It is used in cement drainage pipes and lime-sand brick inspection wells, so it is widely used in rainwater drainage systems such as municipal roads and construction areas. The plastic inspection well socket is a fitting for the inspection well to connect pipelines of different diameters, directions, and heights. It must be connected to the well base of the inspection well and to the plastic pipe. Most of the connection between the socket and the well seat of the inspection well is an integral forming structure and a flange connection structure. The connection between the socket and the plastic pipe has a one-way socket elastic seal connection, a two-way socket elastic seal connection, a seal connection at the socket, a socket electric fusion welding connection, a hot-melt butt welding connection, a V-welding connection, a thermal Shrink sleeve connection, electric heating belt connection and flange connection. Different types of plastic pipes, such as double-wall corrugated pipe, three-layer sandwich pipe, annular ribbed pipe, double-wound flat wall and wound spiral pipe, have the same specification, and often have different socket outer diameters, and the error is large.

Contents of the invention

The purpose of the utility model is to provide a sealed connection structure of plastic inspection well sockets that can adapt to different types of plastic drainage pipes.

The technical scheme of the utility model is: a sealed connection structure of a plastic inspection well socket, including an inspection well seat 1, a socket 2, a sealing packing 3, a sealing ring 4, a hot-melt sealing tape 5, and a plastic pipe 6. The socket 2 is fixedly connected to the well block 1 of the inspection well. The plastic pipe 6 is inserted into the socket 2, and the gap between the two is filled with a sealing packing 3. A sealing ring 4 is installed on the top of the sealing packing 3, and the hot-melt sealing tape 5 covers the sealing ring 4 and seals the gap between the socket 2 and the plastic pipe 6.

The gap between the socket 2 and the plastic pipe 6 is 5-15mm.

The socket 2 has an inner cone structure, and the bottom end of the plastic tube 6 is in contact with the tapered surface in the socket 2 .

The socket 2 is connected with the well base 1 of the inspection well by socket hot-melt welding.

The utility model adopts socket 2 conical surfaces, sealing packing 3, sealing ring 4 and hot-melt sealing tape 5 to carry out four-stage sealing when sealing. The linear seal between the end face of the plastic pipe 6 and the conical surface of the socket 2 is a first-level seal, the sealing packing 3 is a second-level seal, the sealing ring 4 is a third-level seal, and the hot-melt sealing tape 5 is a fourth-level seal. The sealing packing 3 is a flexible sealing packing material, including corrosion-resistant asbestos rope, asphalt hemp silk, polystyrene board, polyvinyl chloride foamed plastic board and viscous solid-fluid materials.

The socket 2 and the well seat 1 of the inspection well are welded by socket heat fusion, the sealing packing 3 is placed between the socket 2 and the plastic pipe 6, and the sealing ring 4 is used for the sealing packing 3 to be filled and then placed on the socket 2 and the plastic pipe 6 The plugging and sealing between the socket, the hot-melt sealing tape 5 and the socket 2 and the plastic pipe 6 are hot-melt welded to further ensure the sealing between the socket 2 and the plastic pipe 6, and at the same time improve the sealing between the socket 2 and the plastic pipe 6 Connection strength and reliability.

The beneficial effects of the utility model are:

(1) The socket and the well seat of the inspection well are welded by socket hot-melt welding, which has good connection flexibility, high connection strength, good reliability and easy guarantee of sealing;

(2) The socket of the socket is an inner cone structure, which has good socketability, convenient socket and strong adaptability, and can meet the connection of different types of plastic pipes of the same specification;

(3) The sealing packing adopts flexible materials such as corrosion-resistant asbestos rope, which has good packing performance and plays a certain sealing role at the same time;

(4) Choose sealing rings with different section diameters according to the socket gaps of different types of plastic pipes to ensure the sealing effect;

(5) Hot-melt sealing tape welding not only ensures the sealing, but also greatly improves the strength of the socket connection;

(6) The connection between the plastic pipe and the socket is flexible.

Description of drawings

Fig. 1 is the structural representation of the utility model;

The labels in the figure are: 1: inspection well seat, 2: socket, 3: sealing packing, 4: sealing ring, 5: hot-melt sealing tape, 6: plastic pipe.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model will be further described, but the content of the utility model is not limited to said range.

Example 1: A sealed connection structure of a plastic inspection well socket, including an inspection well seat 1, a socket 2, a sealing packing 3, a sealing ring 4, a hot-melt sealing tape 5, and a plastic pipe 6. The socket 2 is an inner cone structure, and is fixedly connected to the well block 1 of the inspection well. The plastic pipe 6 is inserted into the socket 2, and its bottom end is in contact with the tapered surface in the socket 2, and the gap between the two is filled with a sealing packing 3. A sealing ring 4 is installed on the top of the sealing packing 3, and the hot-melt sealing tape 5 covers the sealing ring 4 and seals the gap between the socket 2 and the plastic pipe 6. The gap between socket 2 and plastic pipe 6 is 5mm. The socket 2 is connected with the well block 1 of the inspection well by socket hot-melt welding. the

Example 2: A sealed connection structure of a plastic inspection well socket, including an inspection well seat 1, a socket 2, a sealing packing 3, a sealing ring 4, a hot-melt sealing tape 5, and a plastic pipe 6. The socket 2 is an inner cone structure, and is fixedly connected to the well block 1 of the inspection well. The plastic pipe 6 is inserted into the socket 2, and its bottom end is in contact with the tapered surface in the socket 2, and the gap between the two is filled with a sealing packing 3. A sealing ring 4 is installed on the top of the sealing packing 3, and the hot-melt sealing tape 5 covers the sealing ring 4 and seals the gap between the socket 2 and the plastic pipe 6. The gap between socket 2 and plastic pipe 6 is 10mm. The socket 2 is connected with the well block 1 of the inspection well by socket hot-melt welding.

Example 3: A sealed connection structure of a plastic inspection well socket, including an inspection well seat 1, a socket 2, a sealing packing 3, a sealing ring 4, a hot-melt sealing tape 5, and a plastic pipe 6. The socket 2 is an inner cone structure, and is fixedly connected to the well block 1 of the inspection well. The plastic pipe 6 is inserted into the socket 2, and its bottom end is in contact with the tapered surface in the socket 2, and the gap between the two is filled with a sealing packing 3. A sealing ring 4 is installed on the top of the sealing packing 3, and the hot-melt sealing tape 5 covers the sealing ring 4 and seals the gap between the socket 2 and the plastic pipe 6. The gap between socket 2 and plastic pipe 6 is 15mm. The socket 2 is connected with the well block 1 of the inspection well by socket hot-melt welding.

Claims (4)

1. A sealed connection structure for a plastic inspection well socket, characterized in that it includes an inspection well seat (1), a socket (2), a sealing packing (3), a sealing ring (4), and a hot-melt sealing tape ( 5), plastic pipe (6); the socket (2) is fixedly connected to the inspection well seat (1), the plastic pipe (6) is inserted into the socket (2), and the gap between the two is filled with a seal Packing (3), the sealing ring (4) is installed on the top of the sealing packing (3), and the hot-melt sealing tape (5) covers the sealing ring (4) and seals between the socket (2) and the plastic pipe (6) gap. 2. The sealed connection structure of plastic inspection well socket according to claim 1, characterized in that: the gap between the socket (2) and the plastic pipe (6) is 5-15mm. 3. The sealing connection structure of plastic inspection well socket according to claim 1, characterized in that: the socket (2) is an inner cone structure, and the bottom end of the plastic pipe (6) is in contact with the cone in the socket (2). surface contact. 4. The sealing connection structure of the plastic inspection well socket according to claim 1 or 2, characterized in that: the socket (2) and the inspection well base (1) are connected by socket hot-melt welding.

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