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Pilot valve fixing structure and four-way switching valve

A fixed structure, pilot valve technology, applied in the direction of fixing devices, valve devices, engine components, etc., can solve the problems of asynchronous vibration between the support cover and the bracket, affecting the performance of the valve, and reducing the resonance frequency, so as to ensure stability and prolong The effect of improving service life and assembly efficiency

Active Publication Date: 2019-06-18
ZHEJIANG DUNAN HETIAN METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the overall force of the four-way reversing valve vibrates, the support cover will move relative to the bracket, the vibration of the support cover and the support will not be synchronized, and the resonance frequency will decrease, which will easily lead to capillary breakage and affect the overall performance of the valve.

Method used

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  • Pilot valve fixing structure and four-way switching valve
  • Pilot valve fixing structure and four-way switching valve
  • Pilot valve fixing structure and four-way switching valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , figure 2 , image 3 As shown, the pilot valve fixing structure provided by Embodiment 1 of the present invention includes a bracket 1 and a support cover 2 that cooperate with each other to fix the pilot valve 300 . The bracket 1 includes a connecting plate 13 , a first supporting plate 11 and a second supporting plate 12 , and the first supporting plate 11 and the second supporting plate 12 are respectively arranged on opposite sides of the connecting plate 13 and arranged in parallel. The support cover 2 includes a cover plate 21 and a sealing plate 22 formed by bending one side of the cover plate. The cover plate 21 is fixedly connected to the first support plate 11 , the cover plate 22 is fixedly connected to the second support plate 12 , and one end of the pilot valve 300 is arranged between the bracket 1 and the support cover 2 to realize fixing.

[0033] After the installation is completed, the support 1 , the support cover 2 and the pilot ...

Embodiment 2

[0047] Such as Figure 6 As shown, the difference between Embodiment 2 of the present invention and Embodiment 1 above is that the sealing plate 22 is provided with a larger lug 24 at the end away from the cover plate 21, and the lug is directly attached to the second supporting plate. 12, and realize the fixed connection between the lug 24 and the second support plate 12 by welding, so as to realize the fixed connection between the sealing plate 22 and the second support plate 12.

[0048] Other structures of Embodiment 2 of the present invention are the same as those described in Embodiment 1 above, so details will not be repeated here.

[0049] It can be understood that, in this embodiment, the fixing between the lug 24 and the second support plate 12 can also be realized by means of screw connection, riveting and the like.

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Abstract

The invention discloses a pilot valve fixing structure and a four-way switching valve, and belongs to the field of valves. The fixing structure comprises a supporting frame and a supporting cover which mutually cooperate to fix a pilot valve, the supporting frame comprises a connecting plate, the supporting cover comprises a cover plate, the structure is characterized in that the supporting framefurther comprises a first supporting plate and a second supporting plate which are parallelly arranged on the opposite two sides of the connecting plate respectively, the supporting cover further comprises a sealing plate which is formed by the bending of one side of the cover plate, the cover plate is fixedly connected with the first supporting plate, the sealing plate is fixedly connected with the second supporting plate, and one end of the pilot valve is arranged between the supporting frame and the supporting cover to achieve fixing. The structure has the advantages that when the whole structure vibrates due to force bearing in the working process, the supporting frame, the supporting cover and the pilot valve synchronously vibrate, the supporting frame, the supporting cover and the pilot valve have a uniform resonance frequency to effectively prevent the breaking of capillary pipes due to low resonance frequency between the supporting frame and the supporting cover, the stabilityof the whole valve structure is ensured, the working stability of the valve structure is further ensured, and therefore the service life of the valve structure is prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a fixing structure of a pilot valve. In addition, the invention also relates to a four-way reversing valve. Background technique [0002] The four-way reversing valve is mainly composed of a main valve, a pilot valve and an electromagnetic coil. When working, the reversing of the main valve is realized through the joint action of the electromagnetic coil and the pilot valve, so as to realize the purpose of switching the fluid flow direction, and then make the heat exchange system It can be switched between two working states to realize the dual-purpose working purpose of cooling in summer and heating in winter. [0003] In the prior art, the pilot valve is generally fixedly arranged on the main valve. The Chinese utility model patent with the notification number CN 204553914U discloses an electromagnetic four-way reversing valve, wherein the driving valve is installed on the valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K51/00F16B1/02
Inventor 陈建军刘海波
Owner ZHEJIANG DUNAN HETIAN METAL CO LTD
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