CN203413193U

CN203413193U - Magnetic fireproof switch

Info

Publication number: CN203413193U
Application number: CN201320389590.2U
Authority: CN
Inventors: 张晓华
Original assignee: Hebei Zhao Tang Gas-Fired Equipment Manufacturing Co Ltd
Current assignee: Hebei Zhao Tang Gas-Fired Equipment Manufacturing Co Ltd
Priority date: 2013-07-02
Filing date: 2013-07-02
Publication date: 2014-01-29
Anticipated expiration: 2023-07-02

Abstract

The utility model discloses a magnetic fireproof switch comprising a hollow valve body, wherein a first armature, an annular magnet and a second magnet are sequentially located at the right end of the valve body; a limiting locking plate is arranged inside the valve body; a spring is fixed on the limiting locking plate; the other end of the spring is connected with a bracket; a movable magnet matched with the annular magnet is arranged inside the bracket, and the end of the bracket is provided with a sealing gasket; the distance between the first armature and a second armature is larger than the thickness of the annular magnet. By means of the characteristic of magnetic separation conductivity, the movable magnet does not contact with fuel gas when the switch is turned on or off, and thus, the normal opening and closing functions of the sealing gasket are achieved by means of the magnetism in the valve and the elasticity of the spring; and under the condition that the magnetic fireproof switch is used at high temperature, the magnetic force is invalid, a valve outlet is plugged by the spring arranged inside the valve body, and an air source is cut off, so that the secondary generation of a fuel gas accident is effectively avoided.

Description

Magnetic fuel shut-off valve

Technical field

The utility model belongs to pipeline fluid valve arrangement safety control technology field, belong to fluid line superpressure, under-voltage, the excessive automatic closing structures of flow such as gas, liquid, especially a kind ofly can mechanically realize the Safety control valve of automatically closing by elastic force or the pulling force of spring.

Background technique

Before existing civil gas stove, valve or indoor main valve valve used are ball valve and stopcock substantially, and the sealing of above valve handle active part is that gum filler O type circle is done to seal substantially, under the long-term situation of using rotation to twist, can cause the wearing and tearing of O type circle not have the effect of sealing, can cause that serious gas leakage after-explosion causes unnecessary loss of life and property; Kitchen breaking out of fire produces high temperature, and ball valve or stopcock can not closed automatically, and the continuous output due to combustion gas after state that valve is opened is on fire causes follow-up dangerous situation, very serious of consequence.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of simple in structure, magnetic fuel shut-off valve that Safety performance is good.

For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of magnetic fuel shut-off valve, its key technology is: it comprises hollow valve body, the right-hand member of described hollow valve body is positioned with the first armature, ring magnet and the second armature successively, described valve inner is provided with limit locking pieces, on described limit locking pieces, be fixed with spring, the other end of described spring is connected with bracket, and described bracket inside is provided with movable magnet, the bracket end of the supporting setting of ring magnet and is provided with sealing gasket; Spacing between described the first armature and the second armature is greater than the thickness of ring magnet.

Described valve body one side is provided with suction port, opposite side is provided with air outlet.

Adopt the beneficial effect that technique scheme produces to be: the utility model utilizes magnetic to separate the characteristic of magnetic conduction, during switch movable magnet not with contacts fuel gas, sealing gasket utilizes the function of magnetic and the real normal Push And Release of spring in valve; The in the situation that of Environmental Conditions generation high temperature, magnetic force lost efficacy, and the spring handle valve export of valve internal blocks, and cut off source of the gas, effectively prevented that the secondary of gas accidents from occurring.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model open mode;

Fig. 2 is the structural representation of the utility model closed condition;

Wherein, 1, suction port, 2, hollow valve body, the 3, first armature, 4, ring magnet, the 5, second armature, 7, sealing plane, 8, air outlet, 9, sealing gasket, 10, movable magnet, 11, magnet carrier, 12, spring, 13, limit locking pieces.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Referring to accompanying drawing 1 and accompanying drawing 2, the present embodiment comprises hollow valve body 2, right-hand member on described hollow valve body 2 is positioned with the first armature 3, ring magnet 4 and the second armature 5 successively, limit locking pieces 13 is located in described valve body 2 inside, on described limit locking pieces 13, be fixed with spring 12, the other end of described spring 12 is connected with bracket 11, and described bracket 11 inside are provided with movable magnet 10, bracket 11 ends of ring magnet 4 supporting settings and are provided with sealing gasket 9; Spacing between described the first armature 3 and the second armature 5 is greater than the thickness of ring magnet 4.On described movable magnet 10 cylindricals, a plurality of projections that play correcting effect can be further set, make movable magnet 10 at central motion, activity is more stable.

Described hollow valve body 2 one sides are provided with suction port 1, opposite side is provided with air outlet 8.

Referring to accompanying drawing 1 and accompanying drawing 2, gas or fluid are entered by suction port 1, by air outlet 7, are gone out.During valve opening, promote ring magnet 4 and drive Sealing and the first armature 3 adhesives that are comprised of sealing gasket 9, movable magnet 10 and magnet carrier 11, valve is opened in the centre that is now suspended in ring magnet 4 due to the effect movable magnet 10 of magnetic by force Compress Spring 12.

During valve closing, promote ring magnet 4 and the second armature 5 adhesives, sealing gasket 9 is due to together the fit sealing plane 7 of outlet side of two Action of Gravity Fields of magnetic force and spring force, and cut-out source of the gas is exported.

When valve environment in the middle of using process is spent height or breaking out of fire, because being subject to high-temperature magnetic, magnet lost efficacy, in the effect of spring 12 elastic force, promote all the time sealing gasket 9 and be kept closed with the sealing plane of outlet side 7, cut off the generation of the effective Accident prevention of source of the gas.

The utility model can be widely used in the safety control of inflammable gas or other gases, and its cost is lower, can well guarantee to use safety.

Claims

1. a magnetic fuel shut-off valve, it is characterized in that: it comprises hollow valve body (2), the right-hand member of described hollow valve body (2) is positioned with the first armature (3), ring magnet (4) and the second armature (5) successively, described valve body (2) inside is provided with limit locking pieces (13), on described limit locking pieces (13), be fixed with spring (12), the other end of described spring (12) is connected with bracket (11), and described bracket (11) inside is provided with movable magnet (10), bracket (11) end of the supporting setting of ring magnet (4) and is provided with sealing gasket (9); Spacing between described the first armature (3) and the second armature (5) is greater than the thickness of ring magnet (4).

2. magnetic fuel shut-off valve according to claim 1, is characterized in that: described valve body (2) one sides are provided with suction port (1), opposite side is provided with air outlet (8).