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Valve device

A valve device and valve body technology, which is applied to valve devices, control valves, functional valve types, etc., can solve the problems of increased overall weight, increased difficulty in forging, and increased difficulty in machining blanks, and achieves cost reduction and machining. simplistic effect

Active Publication Date: 2016-07-27
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in this structure, since the filling part is independently set relative to the valve body 1' and the valve stem 2', when forging the valve body blank, the filling part 4' needs to be forged at the same time, which makes forging more difficult and leads to rough The difficulty of mechanical processing increases
At the same time, the existence of the filling part increases the overall weight of the valve device, and the valve core is a necessary part for filling, which leads to an increase in cost
In addition, when the valve core is in a hot and cold environment, the sealing part is prone to loosening, and there is a hidden danger of a decrease in sealing performance.

Method used

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no. 1 example

[0033] Please refer to figure 1 , figure 1 It is a schematic cross-sectional view of the valve device of the first embodiment provided by the present invention. The valve device includes a generally cylindrical valve body 1 , which can be usually made by forging or casting, and has an inner cavity 11 . On the circumferential side wall of the valve body 1, there is provided a first interface 12 along its radial direction. The first interface 12 can be connected and fixed with the copper sealing cap 122 through a nut 121. The structure here can refer to the prior art, no longer detail.

[0034] The bottom of the valve body 1 is provided with a second interface 13 for connecting with piping components in the system to form a closed refrigerant channel. A valve port 14 is provided near the second interface 13, and the valve port 14 can be formed by mechanical cutting.

[0035] In the inner cavity 11 of the valve body 1, a generally rod-shaped valve stem 2 is arranged, and the...

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PUM

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Abstract

Provided is a valve device. The valve device comprises a cylindrical valve body and a valve rod, wherein an inner cavity is formed in the valve body, and the valve rod is arranged in the valve body and reciprocates to make contact with a valve port or be separated from the valve port so as to open or close the valve device. The end, away from the valve port, of the valve rod is provided with an operating part, an inner threaded part connected with the operating part, a first hole part connected with the inner threaded part and a second hole part, and the first hole part and the inner cavity communicate through the second hole part. According to the valve device provided by the invention, a charging channel is directly formed in the valve rod, so that a charging part and a valve core on the valve body are omitted, the valve body can be forged and formed more easily, machining of blanks is easier, and cost is lowered.

Description

technical field [0001] The invention relates to the technical field of refrigerant fluid control components, in particular to a valve device for controlling the on-off of refrigerant flow paths. Background technique [0002] Usually, the valve device is used on the outdoor unit of the air conditioner, and controls the opening and closing of the refrigerant flow path during operation. Please refer to Figure 9 , Figure 9 It is a sectional view of a valve device in the prior art. Such as Figure 9 As shown, the valve device includes a valve body 1', which is generally cylindrical, with a bonnet 5' threaded on its upper end and a second connecting pipe 6' connected to the pipeline of the air-conditioning system at its lower end. The outer peripheral wall is respectively provided with a first connecting part 3' and a filling part 4' along the radial direction, and the central axes of the two are usually on the same straight line. [0003] A valve stem 2' is disposed inside th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/20
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD