JP-7857405-B2 - Stop valve and its air conditioning unit

JP7857405B2JP 7857405 B2JP7857405 B2JP 7857405B2JP-7857405-B2

Inventors

華立鋼
楼峰
陳狄永
周峰

Assignees

浙江盾安人工環境股▲ふん▼有限公司

Dates

Publication Date: 20260512
Application Date: 20220930
Priority Date: 20211218

Claims (12)

A valve body made of stainless steel having at least a first opening and a second opening, A valve core, at least a portion of which is provided within the valve body, and which is movable within the valve body so as to connect or block the first opening and the second opening, A second connecting pipe made of stainless steel is provided in the second opening, A single joint connected to the valve body by the second connecting pipe and having a second thread on its outer circumferential wall, Includes, A valve seat is provided inside the valve body, a valve opening is drilled in the valve seat, and the valve opening and the first opening are in communication. An end cover is provided at the opening of one end of the valve body away from the valve seat, the valve core includes a connecting segment and an operating segment connected to each other, and the operating segment is inserted into the end cover. A first sealing member is provided on the outer wall of the connecting segment, and the first sealing member is in contact with the inner wall of the valve body. First projections are provided on both sides of the first sealing member, and these first projections on both sides form a first sealing groove. A third sealing member is provided on the first projection adjacent to the end cover, and the third sealing member is capable of contacting the end cover. A stop valve is provided in which a second sealing member is provided on the side surface of the connecting segment facing the valve opening, and a second projection is provided on the end face of the valve seat facing the valve core, the projection having a thickness that gradually decreases along the direction approaching the valve core, and the second sealing member is capable of contacting the second projection .
The stop valve according to claim 1, wherein the single fitting is a stainless steel single fitting.
The stop valve according to claim 1, wherein one end of the second connecting pipe enters into the single fitting and is connected to the single fitting.
The stop valve according to claim 1, wherein a third projection is provided on the outer wall of the single joint, the third projection extends radially toward the single joint, the third projection is located between the valve body and the second screw, and the third projection is provided with at least two second planes parallel to each other.
The stop valve according to claim 4, wherein the third projection is provided with six of the second planes.
The stop valve according to claim 1, wherein the single joint has a through hole, the inner wall of the through hole is provided in a limiting portion, and one end of the second connecting pipe enters the through hole and abuts against the limiting portion.
The stop valve according to claim 1, wherein a groove is provided on the end face of one end of the operating segment away from the connecting segment, and at least two parallel first planes are provided within the groove, or at least two parallel first planes are provided on the outer wall of the operating segment.
Further including a valve assembly, the valve assembly is connected to the valve body, The valve assembly includes a connector, the connector is connected to the valve body, and the connector serves as a passage through which the medium enters the valve body. The stop valve according to claim 1, wherein the valve assembly further comprises a valve core, a housing, and a fourth sealing member, the valve core being provided within the connecting body and used to communicate or block communication between the inside of the valve body and the inside of the connecting body, the housing being fitted to the outer circumference of the connecting body, and the fourth sealing member being located between the housing and the connecting body and used to engage with the housing and seal the connecting body.
The stop valve according to claim 1, wherein the second connecting pipe is connected to the valve body.
The stop valve according to claim 1, further comprising a first connecting pipe, the first connecting pipe being provided in the first opening, and the first connecting pipe being connected to the valve body.
The stop valve according to claim 1, wherein the single joint and the second connecting pipe are fixed by a method of melting the base material, and/or the second connecting pipe and the valve body are fixed by a method of melting the base material.
An air conditioning unit comprising a stop valve according to any one of claims 1 to 11 .

Description

Related Application This application claims priority to a Chinese patent application filed on 18 December 2021, application number 202123211188.9, with the title of the invention "Stop Valve and Air Conditioning Unit Thereof," the entire contents of which are incorporated into this application by reference. This application relates to the technical field of cooling, and more particularly to stop valves and their air conditioning units. In air conditioning units, shut-off valves play a crucial role in cutting off and restricting the flow of the medium in the pipeline through which they are located. The valve's opening and closing component is the valve core, which is primarily used for blocking the flow of the medium in low-temperature environments. The related shut-off valves have connecting pipes that are welded to the air conditioning unit's pipeline. While this requires welding for user operation, many air conditioning unit installation sites lack the necessary welding facilities, making installation inconvenient. Various embodiments of this application provide a stop valve. A valve body made of stainless steel having at least a first opening and a second opening, A valve core, at least a portion of which is provided within the valve body, and which is movable within the valve body so as to connect or block the first opening and the second opening, A second connecting pipe made of stainless steel is provided in the second opening, A single joint connected to the valve body by a second connecting pipe, with a second thread provided on its outer wall, A stop valve, including one. In one embodiment, the single fitting is a stainless steel single fitting. In one embodiment, one end of the second connecting pipe enters into a single fitting and is connected to the single fitting. In one embodiment, a third projection is provided on the outer wall of the single joint, extending radially across the single joint, positioned between the valve body and the second thread, and having at least two parallel second planes. In one embodiment, the third projection is provided with six second planes. In one embodiment, a through-hole is provided within the single joint, the inner wall of the through-hole is located at the limiting portion, and one end of the second connecting pipe enters the through-hole and abuts against the limiting portion. In one embodiment, a valve seat is provided inside the valve body, a valve opening is drilled in the valve seat, and the valve opening and the first opening are in communication. An end cover is provided at the opening of one end of the valve body away from the valve seat, and the valve core includes a connecting segment and an operating segment that are connected to each other, the operating segment being inserted into the end cover, A groove is provided on the end face of one end of the operating segment that is away from the connecting segment, and at least two parallel first planes are provided within the groove, or at least two parallel first planes are provided on the outer wall of the operating segment. In one embodiment, a first sealing member is provided on the outer wall of the connecting segment, and the first sealing member abuts against the inner wall of the valve body. In one embodiment, first projections are provided on both sides of the first sealing member, and these first projections form a first sealing groove. A third sealing member is provided on the first projection adjacent to the end cover, and the third sealing member is capable of contacting the end cover. In one embodiment, a second sealing member is provided on the side of the connecting segment facing the valve opening, and a second projection is provided on the end face of the valve seat facing the valve core, and the second sealing member is capable of contacting the second projection. In one embodiment, the stop valve further includes a valve assembly, the valve assembly being connected to the valve body. In one embodiment, the valve assembly includes a connector, which is connected to the valve body, and the connector serves as a passage through which the medium enters the valve body. In one embodiment, the valve assembly further includes a valve core, a housing, and a fourth sealing member, wherein the valve core is provided within the connecting body and is used to communicate or block communication between the inside of the valve body and the inside of the connecting body; the housing is fitted to the outer circumference of the connecting body; and the fourth sealing member is located between the housing and the connecting body and is used to engage with the housing and seal the connecting body. In one embodiment, the second connecting pipe is connected to the valve body. In one embodiment, the stop valve further includes a first connecting pipe, which is provided in a first opening and connected to the valve body. In one embodiment, the single joint and the second connecting pipe are fixed by a m