CN219013631U

CN219013631U - Buried valve with good sealing performance

Info

Publication number: CN219013631U
Application number: CN202223457033.8U
Authority: CN
Inventors: 陈德兴; 梁世荣
Original assignee: Aoba Yin Tianjin Intelligent Technology Co ltd
Current assignee: Aoba Yin Tianjin Intelligent Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-05-12
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a buried valve with good sealing performance, which comprises a valve body and a branch pipe, wherein a connecting assembly is arranged between the valve body and the branch pipe and close to the outer side, the connecting assembly comprises a flange plate which is arranged at the outer side of one end opposite to the valve body and the branch pipe, and a plurality of assembly holes are formed in the flange plate; and a sealing assembly is arranged between the valve body and the branch pipe and is close to the inner side, the sealing assembly comprises a positioning ring arranged at the end part of the valve body, the outer side surface of the positioning ring is in a zigzag shape, a tooth-shaped groove capable of accommodating the positioning ring is arranged on the branch pipe, the end part of the valve body is provided with a sealing ring arranged outside the positioning ring, the side surface of the sealing ring, far away from the valve body, is provided with a plurality of sealing strips, the end part of the branch pipe is provided with grooves capable of accommodating the sealing strips, and the corresponding parts of the sealing strips and the grooves are arc-shaped. The utility model has good connection stability and improves the tightness.

Description

Buried valve with good sealing performance

Technical Field

The utility model relates to the technical field of underground valves, in particular to an underground valve with good sealing performance.

Background

The buried gate valve is a widely used cut-off valve, and has the function of only allowing one-way flow of medium, not allowing reverse flow, and is usually matched with a cut-off valve. The medium on the pipeline is mainly used for connecting or disconnecting the medium in the pipeline, and is not used for regulating the flow. It is in fact an automatically closing valve through which fluid cannot pass when the inlet pressure is equal to zero, so this type of valve is very suitable for use as a shut-off. When the valve is communicated with the branch pipe, the sealing performance between the valve and the branch pipe is extremely important because the medium flow is large and the flow speed is high, otherwise, leakage and other consequences can be caused when the valve is used for a long time, the flange connection is usually used at the joint of the existing valve, and the sealing performance needs to be improved.

Disclosure of Invention

The utility model aims to solve the technical problems that flange connection is usually adopted at the existing valve connection part and the sealing performance is to be improved, and provides the buried valve with good sealing performance.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the buried valve with good sealing performance comprises a valve body and a branch pipe, wherein a connecting assembly is arranged between the valve body and the branch pipe and close to the outer side, the connecting assembly comprises a flange plate which is arranged at the outer side of one end opposite to the valve body and the branch pipe, and a plurality of assembly holes are formed in the flange plate; the valve body and the branch pipe are provided with sealing assemblies in a way of being close to the inner side, the sealing assemblies comprise positioning rings arranged at the end parts of the valve body, the outer side faces of the positioning rings are in a zigzag shape, tooth-shaped grooves capable of accommodating the positioning rings are formed in the branch pipe, the end parts of the valve body are located on the outer sides of the positioning rings, a plurality of sealing strips are arranged on the side faces, far away from the valve body, of the sealing rings, grooves capable of accommodating the sealing strips are formed in the corresponding positions of the end parts of the branch pipe and the sealing strips, and the sealing strips and the grooves are arc-shaped.

Compared with the prior art, the utility model has the advantages that: the zigzag positioning ring and the corresponding tooth-shaped grooves are added on the basis of flange connection, so that the joint of the valve body and the branch pipe can be further limited, and displacement or relative rotation is not easy to generate; sealing rings for improving the sealing performance are arranged, sealing strips and grooves for further sealing are arranged, the sealing rings and the sealing strips are extruded when in flange connection, the sealing performance is greatly improved, and the sealing device is not easy to leak after long-time use.

As an improvement, the positioning ring is longer than the sealing ring.

As an improvement, the sealing strips are uniformly distributed along the circumferential direction of the sealing ring.

As an improvement, the sealing ring and the sealing strip are made of elastic industrial rubber materials.

As an improvement, locking bolts are connected in the corresponding assembly holes in a threaded manner.

As an improvement, the flange plate is welded with the valve body or the branch pipe.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the end structure of the valve body of the present utility model.

FIG. 3 is a schematic view of the seal ring and seal strip of the present utility model.

As shown in the figure: 1. the valve comprises a valve body, 2, a branch pipe, 3, a flange plate, 4, an assembly hole, 5, a positioning ring, 6, a tooth-shaped groove, 7, a sealing ring, 8, a sealing strip, 9 and a groove.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

According to the first embodiment, with reference to all the drawings, the buried valve with good sealing performance comprises a valve body 1 and a branch pipe 2, wherein a connecting component is arranged between the valve body 1 and the branch pipe 2 and is close to the outer side; a sealing component is arranged between the valve body 1 and the branch pipe 2 and near the inner side.

In this embodiment, coupling assembling includes the ring flange 3 that valve body 1 and branch pipe 2 relative one end outside all were equipped with, be the welding between ring flange 3 and valve body 1 or the branch pipe 2, all be equipped with a plurality of pilot hole 4 on the ring flange 3, equal threaded connection has the lock bolt in the pilot hole 4 that corresponds. The valve body 1 and the branch pipe 2 can be connected and fixed by the connecting component, so that relative rotational displacement is avoided, and the stability of connection is improved.

In this embodiment, seal assembly includes the holding ring 5 that valve body 1 tip was equipped with, the holding ring 5 lateral surface is the cockscomb structure, be equipped with on the branch pipe 2 and hold the tooth form groove 6 of holding ring 5, holding ring 5 and tooth form groove 6 can further improve the stability of connection, make branch pipe 2 be difficult for producing the displacement after connecting, valve body 1 tip just is located the sealing ring 7 that the holding ring 5 outside was equipped with, the side that valve body 1 was kept away from to sealing ring 7 is equipped with a plurality of sealing strip 8, sealing strip 8 follows sealing ring 7 circumference evenly distributed, sealing ring 7 and sealing strip 8 are the industrial rubber material that has elasticity, can bear certain elastic deformation, increase the leakproofness, reduce the gap, branch pipe 2 tip and correspond the department with sealing strip 8 all be equipped with can hold sealing strip 8 recess 9, sealing strip 8 and recess 9 are the arc. The sealing component can improve the stability of the connection between the valve body 1 and the branch pipe 2, reduce the gap between the valve body and the branch pipe, and is not easy to leak after long-time use.

The working principle of the utility model is as follows: when in installation connection, the positioning ring 5 is aligned with the tooth-shaped groove 6, so that the saw teeth of the positioning ring 5 are respectively inserted into the corresponding grooves of the tooth-shaped groove 6 to finish positioning and insertion, and at the moment, the branch pipe 2 is limited in the valve body 1 and cannot rotate due to the limitation of the saw teeth and the tooth-shaped groove 6 at the outer side of the positioning ring 5, so that the stability of connection is further improved; at the moment, the sealing strips 8 are inserted into the corresponding grooves 9, the sealing rings 7 are abutted against the end parts of the branch pipes 2, at the moment, the two flange plates 3 are close to each other, and each corresponding group of assembly holes 4 are fixed through the locking bolts to finish connection, the sealing rings 7 are extruded to generate elastic deformation, and gaps between the valve body 1 and the branch pipes 2 are further reduced; at this time, the positioning ring 5 and the tooth-shaped groove 6 can increase the stability of connection, and the cooperation of the sealing ring 7, the sealing strip 8 and the groove 9 can increase the tightness of connection, so that the practicability is strong.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides a buried valve that leakproofness is good which characterized in that: the connecting assembly comprises a valve body (1) and a branch pipe (2), wherein a connecting assembly is arranged between the valve body (1) and the branch pipe (2) and close to the outer side, the connecting assembly comprises a flange plate (3) which is arranged at the outer side of one end, opposite to the valve body (1) and the branch pipe (2), of the valve body, and a plurality of assembly holes (4) are formed in the flange plate (3); the valve body (1) and branch pipe (2) between and be close to the inboard and be equipped with seal assembly, seal assembly includes locating ring (5) that valve body (1) tip was equipped with, locating ring (5) lateral surface is the cockscomb structure, be equipped with tooth form groove (6) that can hold locating ring (5) on branch pipe (2), valve body (1) tip just is located sealing ring (7) that locating ring (5) outside was equipped with, the side that valve body (1) was kept away from to sealing ring (7) is equipped with a plurality of sealing strip (8), branch pipe (2) tip just all is equipped with recess (9) that can hold sealing strip (8) with sealing strip (8) department of corresponding, sealing strip (8) and recess (9) are the arc.

2. The well-sealed buried valve according to claim 1, wherein: the locating ring (5) is longer than the sealing ring (7).

3. The well-sealed buried valve according to claim 1, wherein: the sealing strips (8) are uniformly distributed along the circumferential direction of the sealing ring (7).

4. The well-sealed buried valve according to claim 1, wherein: the sealing ring (7) and the sealing strip (8) are made of elastic industrial rubber materials.

5. The well-sealed buried valve according to claim 1, wherein: locking bolts are connected in the corresponding assembly holes (4) in a threaded mode.

6. The well-sealed buried valve according to claim 1, wherein: the flange plate (3) is welded with the valve body (1) or the branch pipe (2).