A shut-off valve for refrigeration system
A refrigeration system and globe valve technology, applied in the direction of lift valve, valve details, valve device, etc., can solve problems such as valve stem 2' flying out, safety accident, missing or improper installation, etc., to increase the safety of use and The effect of reliability
Active Publication Date: 2020-05-01
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
That is to say, when the valve port is fully open, the positioning of the valve stem 2' is all realized by the retaining ring 5'. If the retaining ring 5' is missing or not installed properly, there is a risk of the valve stem 2' flying out, which is easy to cause security incident
Method used
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[0031] The core of the present invention is to provide a shut-off valve for a refrigeration system, which can realize reliable positioning of the valve stem 2 through the cooperation of the valve stem 2 and the valve body 1, without the need for auxiliary parts such as retaining rings, thereby avoiding damage caused by the installation of auxiliary parts. The potential safety hazards caused by the utility model have improved the safety of use.
[0032] The shut-off valve for refrigeration system provided by the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can accurately understand the technical solution of the present invention.
[0033] The axial direction described herein refers to the valve stem 2 , and the axial direction is the extension direction of the valve stem 2 ;
[0034] For ease of description, the axial direction herein can also be defined as the up and down direction, the move...
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The invention provides a stop valve used for a refrigerating system. According to the stop valve used for the refrigerating system, a valve rod can be positioned reliably through cooperation between the valve rod and a valve body without an auxiliary part such as a check ring, so that potential safety hazards caused by mounting of the auxiliary part are avoided, and the safety in use is improved. The stop valve comprises the valve body provided with a valve port and the valve rod used for opening and closing the valve port. The valve body is provided with a first positioning part, and the valve rod is provided with a second positioning part. When the valve body is completely opened, the first positioning part is matched with the second positioning part, so that the valve rod is positioned. According to the stop valve, the valve body and the valve rod are provided with the matched positioning parts so that the valve rod can be positioned through the valve body after being mounted without the auxiliary part such as the check ring, the situation that the valve rod is positioned unreliably due to the fact that the auxiliary part is not mounted or not mounted in place or is mounted mistakenly is avoided, the accident that the valve rod flies out is avoided accordingly, and the safety and reliably of the stop valve in use are improved.
Description
technical field [0001] The invention relates to the technical field of refrigeration systems, in particular to a shut-off valve for refrigeration systems. Background technique [0002] Various valves are usually used in the refrigeration system to control the refrigerant. For example, the shut-off valve is used in the air-conditioning system to realize the communication between the outdoor unit and the indoor unit. The shut-off valve is an operable manual switch valve that disconnects the fluid passages such as refrigerants before installing the air conditioner, and connects the refrigerant passages during installation. [0003] Please refer to figure 1 , figure 1 It is a cross-sectional view of a typical shut-off valve in the prior art. [0004] Such as figure 1 As shown, in the prior art, the stop valve generally consists of a valve body 1', a valve stem 2', a valve cap 3', an O-ring 4', a back-up ring 5', a union nut 6', a cap 7', a valve core 8', filling valve cap 9...
Claims
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IPC IPC(8): F16K1/00F16K1/36F16K27/02
CPCF16K1/00F16K1/36F16K27/02
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD