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Main valve of four-way reversing valve and four-way reversing valve using same

A four-way reversing valve, reversing valve technology, applied in multi-way valves, valve operation/release devices, valve details, etc., to achieve the effect of improving reliability and service life

Active Publication Date: 2015-06-10
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a main valve of a four-way reversing valve and a four-way reversing valve using the main valve. The problem of the breakage of the screw locking plate and the decrease of the service life of the four-way valve caused by the collision

Method used

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  • Main valve of four-way reversing valve and four-way reversing valve using same
  • Main valve of four-way reversing valve and four-way reversing valve using same
  • Main valve of four-way reversing valve and four-way reversing valve using same

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Embodiment Construction

[0040] The present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0041] Figure 5 It is a front view and a right view of one of the specific examples of the screw locking piece provided by the present invention, Image 6 It is a front view and a top view of the piston component structure using the screw locking plate.

[0042] like Figure 5 and Image 6 shown. The screw locking piece 4 is made by punching a brass strip, and generally has a sheet structure with four "tooth shapes", wherein the opposite pair of teeth 45 are provided with rivet holes 42, and the other pair of teeth 46 A screw through hole 41 is provided, and on both sides of the screw through hole 41, flanks perpendicular to the base are punched as locking parts 44 for mounting screws, and an opening 43 is provided in the middle of the screw locking piece 4. In this embodiment, The opening 43 is in the shape of a circular hole with a diameter D. Of course, it...

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Abstract

The invention belongs to the field of refrigeration control and particularly relates to a main valve of a four-way reversing valve and the four-way reversing valve using the same. The main valve comprises a valve body, an end cap, a piston part and the like, wherein the piston part comprises a piston body, a piston sheet and a screw locking piece positioned on the piston sheet; and the end cap is provided with a large-diameter part fixedly connected with the valve body and a small-diameter part extending toward the inside of the valve body. The main valve is characterized in that: the small-diameter part of the end cap is provided with a pressed joint end face which is used for the pressed joint with the piston part; and an opening, of which the area is larger than that of the pressed joint end face of the piston part, is reserved in the middle part of the screw locking piece. In the main valve of the four-way reversing valve, the pressed joint end face of the end cap is not in pressed joint with the screw locking piece of the piston part, so the screw locking piece is protected from being battered or even broken when encountering reversing impact and the reliability and the service life of the four-way reversing valve are improved.

Description

technical field [0001] The invention belongs to the field of refrigeration control, and relates to a main valve used for a four-way reversing valve of a refrigeration cycle system and a four-way reversing valve using the main valve. Background technique [0002] The four-way reversing valve is mainly composed of electromagnetic coil, pilot valve and main valve. During the control process, the direction of the main valve is realized through the joint action of the electromagnetic coil and the pilot valve to switch the flow direction of the refrigerant, so that the heat pump air conditioner can be switched between the two working states of cooling and heating. The purpose of one machine for cooling and heating in winter. [0003] figure 1 It is a schematic diagram of the main valve structure of the four-way reversing valve used in the refrigeration system. The valve cavity 107 of the main valve 100 of the four-way reversing valve is composed of a cylindrical metal tubular v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/06F16K31/122F16K27/00
Inventor 竹勇
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY