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Pilot-operated type solenoid valve and combination method therefor

A technology of a pilot-operated solenoid valve and a combination method, applied in the field of solenoid valves, can solve the problems of inconvenient processing and complex product structure, and achieve the effects of easy inner diameter size and improved reliability.

Inactive Publication Date: 2015-08-05
ZHEJIANG SANHUA CLIMATE & APPLIANCE CONTROLS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art pilot solenoid valve, the valve seat is sleeved outside the casing and welded. The inner cavity of the piston and the valve seat needs to realize a slidable fit and seal the valve cavity, and two connecting pipes need to be welded on the valve seat. The product Complex structure and inconvenient processing

Method used

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  • Pilot-operated type solenoid valve and combination method therefor
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  • Pilot-operated type solenoid valve and combination method therefor

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Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] figure 2 It is a schematic diagram of a pilot solenoid valve according to a specific embodiment of the present invention. image 3 for figure 2 A schematic diagram of the valve body assembly structure of the solenoid valve in ; Figure 4 It is a schematic diagram of a solenoid valve of another specific embodiment provided by the present invention.

[0037] Such as figure 2 shown. In this specific embodiment, the main body of the solenoid valve is a valve sleeve 1 formed by stretching a sheet material, and the valve sleeve 1 is a straight cylindrical structure with an inner hole of equal diameter. The static iron core 7 is airtightly fixed on the upper end of the valve sleeve by argon arc welding or laser welding, and ...

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Abstract

The invention relates to the technical field of solenoid valves, and especially relates to a pilot-operated type solenoid valve and a combination method therefor. The solenoid valve comprises a valve sleeve, a static iron core welded at one end of the interior of the valve sleeve, a valve seat which is welded at the other end of the interior of the valve sleeve and provided with a valve mouth, an inlet connection pipe which is fixed on an outer side wall of the valve sleeve and communicated with the inner cavity of the valve sleeve, and an outlet connection pipe which is fixed on the valve seat and communicated with the valve mouth. The interior of the valve sleeve is provided with a movable iron core and a piston, wherein the movable iron core can slide axially. The solenoid valve is characterized in that a segment, located in a sliding section of the movable iron core and the piston, of an inner wall of the valve sleeve is a straight cylindrical segment with the constant diameter; the straight cylindrical segment is fixedly provided with a limiting part; and the solenoid valve can reduce the machining cost and materials, and achieves the miniaturization of a product.

Description

technical field [0001] The invention relates to the technical field of solenoid valves, in particular to a pilot solenoid valve and a combination method thereof. Background technique [0002] Pilot solenoid valve products are widely used, and are generally used to control the opening or closing of large flow media. Please refer to figure 1 , figure 1 It is a structural schematic diagram of a typical pilot solenoid valve in the prior art. The pilot solenoid valve in the prior art includes a coil 2' and a valve seat 3' respectively connected to the upper and lower ends of the sleeve 1', the upper end of the sleeve 1' is provided with a static iron core 7', and the inside of the sleeve 1' There is a moving core iron 4', the lower end of the moving core iron 4' is fixed with a sealing ball 41', a spring 9' is provided between the moving core iron 4' and the head 11', and the valve seat 3' is made of metal such as copper block, etc. The structure formed by machining is welded...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/02F16K1/32B23K31/02
CPCF16K27/0245B23K31/02F16K1/32F16K27/029
Inventor 不公告发明人
Owner ZHEJIANG SANHUA CLIMATE & APPLIANCE CONTROLS GRP CO LTD
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