CN209977238U

CN209977238U - Plane sealing three-way structure

Info

Publication number: CN209977238U
Application number: CN201920478915.1U
Authority: CN
Inventors: 郭建恒; 王勇
Original assignee: GTC GAS TECHONOLOGY COMPONENTS Co Ltd
Current assignee: GTC GAS TECHONOLOGY COMPONENTS Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-21
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a plane seal tee bend structure aims at providing a simple structure, the big and sealing performance good plane seal tee bend structure of permissible error. The utility model discloses a valve body and case, it has the spacing groove to open on the case, the sealing ring has been cup jointed on the spacing groove, open the step hole in the valve body, during sealed, the lower extreme of case stretches into in the step hole, the sealing ring is pressed on the step in the valve body. The utility model discloses be applied to the technical field of hanging stove.

Description

Plane sealing three-way structure

Technical Field

The utility model relates to a plane seal tee bend structure.

Background

As shown in fig. 4 to 6, the valve body of the three-way structure on the market is usually sealed in a radial direction, that is, a sealing ring is sleeved at the sealing position of the valve core, a step hole is formed in the valve body, a round angle is formed at the corner of the step, and then the valve core is radially sealed on the round angle through the sealing ring, obviously, the valve body is radially extruded through the valve core to realize sealing in the radial direction, however, in the using process, the plastic parts of the valve body and the valve core may easily have the shrinkage deformation condition due to the radial extrusion, so that good sealing performance cannot be achieved; in addition, because the radial seal is adopted, the tolerance of the tolerance fit between the valve core and the valve body is small. Therefore, a planar sealing three-way structure with simple structure, large allowable error and good sealing performance is needed to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure, the big and sealed good three-way structure of plane of permissible error.

The utility model adopts the technical proposal that: the utility model discloses a valve body and case, it has the spacing groove to open on the case, the sealing ring has been cup jointed on the spacing groove, open the step hole in the valve body, during sealed, the lower extreme of case stretches into in the step hole, the sealing ring is pressed on the step in the valve body.

Further, an annular bulge is arranged on a step in the valve body, and the sealing ring is pressed on the annular bulge.

Further, the end face of the outer side of the annular protrusion is an inclined face, and the inclined face is inclined inwards.

The utility model has the advantages that: because the utility model comprises a valve body and a valve core, the valve core is provided with a limit groove, the limit groove is sleeved with a sealing ring, the valve body is provided with a step hole, when in sealing, the lower end of the valve core extends into the step hole, the sealing ring is pressed on the step in the valve body, compared with the prior art that radial sealing is adopted, the sealing ring has the conditions of small allowable error and poor sealing property, in the utility model, the sealing ring is pressed on the step in the valve body, thereby realizing the sealing of the valve core on the valve body, two sealing surfaces between the sealing ring and the step of the valve body are both planes, the design that both sealing surfaces are planes can avoid radial extrusion and easily generate the condition of shrinkage deformation, and the design that both sealing surfaces are planes can also ensure that the allowable error of tolerance matching between the valve body and the valve body is large, therefore, the utility model has the advantages of simple structure, large allowable error and good sealing performance.

Drawings

Fig. 1 is a schematic plan view of the present invention;

FIG. 2 is a schematic plan view of the valve cartridge;

FIG. 3 is a schematic plan view of the valve body;

FIG. 4 is a schematic plan view of a conventional radial seal;

FIG. 5 is a schematic plan view of a valve cartridge of the conventional art;

fig. 6 is a schematic plan view of a valve body of the conventional art.

Detailed Description

As shown in fig. 1 to 6, in this embodiment, the utility model discloses a valve body 1 and case 2, it has spacing groove 3 to open on the case 2, sealing ring 4 has been cup jointed on the spacing groove 3, step hole 5 has been seted up in the valve body 1, during sealed, the lower extreme of case 2 stretches into in the step hole 5, sealing ring 4 presses on the step in the valve body 1. Adopt radial seal and have the situation that the tolerance is little and the leakproofness is poor for conventional technique the utility model discloses in, sealing ring 4 presses on the step in the valve body 1, thereby realize case 2 seals on the valve body 1, sealing ring 4 with two sealed faces between the step of valve body 1 are the plane, and two sealed faces are planar design and can avoid radial extrusion and the situation that the shrink deformation appears easily, and two sealed faces are planar design simultaneously and can also make valve body 1 with tolerance complex between the valve body 1 tolerance is big, makes the utility model has the advantages of simple structure, the tolerance is big and sealing performance is good.

In this embodiment, an annular protrusion 6 is provided on the step in the valve body 1, and the sealing ring 4 presses on the annular protrusion 6.

In the present embodiment, the outer end surface of the annular protrusion 6 is a slope, and the slope is inclined inward.

The utility model discloses be applied to the technical field of hanging stove.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not intended to limit the scope of the invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims

1. The utility model provides a plane seal tee bend structure which characterized in that: the valve comprises a valve body (1) and a valve core (2), wherein a limiting groove (3) is formed in the valve core (2), a sealing ring (4) is sleeved on the limiting groove (3), a step hole (5) is formed in the valve body (1), during sealing, the lower end of the valve core (2) extends into the step hole (5), and the sealing ring (4) is pressed on a step in the valve body (1).

2. The planar sealing tee structure of claim 1, wherein: an annular bulge (6) is arranged on a step in the valve body (1), and the sealing ring (4) is pressed on the annular bulge (6).

3. The planar sealing tee structure of claim 2, wherein: the outer side end face of the annular protrusion (6) is an inclined face, and the inclined face is inclined inwards.