CN2515464Y

CN2515464Y - Electromagnetic stop valve

Info

Publication number: CN2515464Y
Application number: CN 01257334
Authority: CN
Inventors: 刘峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-16
Filing date: 2001-11-16
Publication date: 2002-10-09
Anticipated expiration: 2011-11-16

Abstract

An electromagnetic cut-off valve which belongs to a valve comprises a valve body 1, a front cavity 2, a valve core 3, a guiding-sheathing 4, a through-hole 5 of the valve core, a screw cap 6, a back cavity 7, a electromagnet armature 8, a slant hole 9, a combination gasket 10, sealing rings 11, 12, 13, a compression spring 14. Wherein the valve core 3 sheathed with the compression spring 14 is arranged in the valve body, then the sealing ring 13, 12, 11, the guiding-sheathing 4, the screw cap 6 are all arranged in the valve body in turn. The back cavity 7 is positioned at the spot where the electromagnet armature 8 directly faces the valve core 3, and the front cavity 2 is communicated with the back cavity 7 by the longitudinal through-hole 5 which is positioned in the valve core 3. The utility model has the beneficial effects that using balance principle and without pressure limitation, the outlet can be closed with very small spring force and opened with very small electromagnetic force, and the identical electromagnetic cut-off valve can be used for fluid with different pressure intensity. By using the flexible air sealing gasket, the utility model reduces the processing difficulty largely, achieves the air-proof effect easily, and is suitable for gas-liquid dual purpose.

Description

Electromagnet cut off valve

Technical field

The utility model relates to a kind of electromagnet cut off valve, belongs to the valve class.

Technical background

General electromagnet cut off valve is for the fluid pressure difference of control, and needs to adopt the electromagnet of different capacity, so different pressure fluid and will use different solenoid valves; And because of adopting rigid sealing, requirement on machining accuracy is very accurate, brings corresponding difficulty to manufacturing, and it is then difficult especially to reach rate of pressurization.

Technology contents

The purpose of this utility model provides the electromagnet cut off valve that utilizes equilibrium principle, only needs less action force to open and close.The purpose of this utility model realizes in the following manner, promptly has through hole on the spool of this stop valve is vertical, to be communicated with ante-chamber and back cavity, to make the fluid pressure balance that acts on the spool front and back; The beneficial effects of the utility model are that it utilizes equilibrium principle, and the restriction that is not stressed only just can also can only just can be opened outlet with very little electromagnetic force with port closing with very little spring force, and same electromagnet cut off valve can be used for the different fluid of pressure; And adopt soft fluorine sealing gasket, and greatly reduce difficulty of processing, and obtain airtight effect like a cork, be suitable for gas, liquid is dual-purpose.

Description of drawings

Accompanying drawing of the present utility model is its structural representation, is numbered valve body 1 among the figure,, ante-chamber 2, spool 3, guide pin bushing 4, the through hole 5 on the spool, nut 6, back cavity 7, electromagnet armature 8, inclined hole 9, sealing gasket 10,11,12,13, stage clip 14, inlet/outlet A, B.

Mode of execution

Embodiment of the present utility model is as follows, below in conjunction with description of drawings the utility model, this electromagnet cut off valve comprises valve body 1, ante-chamber 2, spool 3, guide pin bushing 4, through hole 5 on the spool, nut 6, back cavity 7, electromagnet armature 8, inclined hole 9, combination mat 10, seal ring 11,12,13, stage clip 14, spool 3 cover compression springs 14 are contained in the valve body, and install sealing gasket 13 successively, 12,11, guide pin bushing 4, nut 6, longitudinal hole 5 is arranged on the spool 3, electromagnet 8 faces spool 3 places back cavity 7, through hole 5 on the spool is communicated with ante-chamber 2 and back cavity 7, makes fluid act on the pressure balance of spool 3 front end and back end.When A was import, electromagnet promoted spool to the motion of B mouth, and outlet is opened, and fluid is discharged from the B mouth, and after the electromagnet outage, under stage clip 14 effects, valve core reset closes valve with valve, and the B mouth can work as import, and the A mouth is when the outlet use.

Claims

1, a kind of electromagnet cut off valve, comprise valve body (1), ante-chamber (2), spool (3), guide pin bushing (4), nut (6), electromagnet armature (8), sealing gasket (10), (11), (12), (13), stage clip (14), spool (3) cover compression spring (14) is contained in the valve body, and install sealing gasket (13), (12), (11) successively, guide pin bushing (4), nut (6), it is characterized in that longitudinal hole (5) is arranged on the described spool (3), electromagnet (8) faces spool (3) and has located back cavity (7), and the through hole on the spool (5) is communicated with ante-chamber (2) and back cavity (7).

2, electromagnet cut off valve according to claim 1 is characterized in that described spool (3) upward has an inclined hole (9) on the longitudinal hole (5).