CN201795102U

CN201795102U - Electromagnetic air valve for controlling opening and closing of multiple channels

Info

Publication number: CN201795102U
Application number: CN2010202825294U
Authority: CN
Inventors: 颜宏
Original assignee: XIAMEN CONJOIN ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: XIAMEN CONJOIN ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-04-13
Anticipated expiration: 2020-08-05

Abstract

The utility model discloses an electromagnetic air valve for controlling the opening and closing of multiple channels, comprising an air channel assembly, at least two valve bodies and a connecting plate, wherein the air channel assembly comprises a main passage and at least two branch passages, and a tee joint is formed by the main passage and the branch passages through an inner chamber; and each valve body comprises a coil holder, a coil, sealing blocks, a moveable iron core, a spring, a stationary iron core and a shell, wherein the stationary iron core is provided with a central through hole, the front end and the rear end of the moveable iron core are respectively fixed with a sealing block, the front end of the stationary iron core is fixed at the lower part of the inner hole of the coil holder, and the spring, the moveable iron core and the sealing blocks are sequentially installed at the upper part of the inner hole of the coil holder; and the coil is sheathed on the external surface of the coil holder, the rear end of the coil holder is fixed on the shell, the front end of the coil holder penetrates through the connecting plate and then connected with the inner chamber of the air channel assembly, and an O ring is installed on the surface of the coil holder, which comes in contact with the inner chamber. The electromagnetic air valve has the advantages of simple structure, convenient assembly, good air tightness and high reaction speed of switching the air channels.

Description

The electromagnetic gas valve of control multichannel break-make

Technical field

The utility model relates to a kind of solenoid valve, especially a kind of electromagnetic gas valve of controlling the multichannel break-make.

Background technique

Early stage realize that the switching of gas circuit is use a kind of electric ball valve, it is to utilize stepper motor or reducing motor to drive spherical valve core by connecting rod to move, and make the public port normally-open normally-close reach the switching of gas circuit, but the motor reaction speed of this structure is slow.

On November 29th, 2006, the disclosed patent No. was a kind of utility model patent of ZL200520015583.1: the combined type air valve, there is the electromagnetic gas valve more than two to interconnect by joint and joint chair, each electromagnetic gas valve has a support, coil is on support, moving iron core is housed in the support, spring, static iron core, static iron core has a central through bore, the bottom of support is connected with pore, joint, joint chair inside is provided with through hole, they are communicated with the formation threeway with internal stent, this kind combined type air valve can be realized the control to each branch's gas circuit, but part is more, complex structure, and assembling is inconvenient, at the corresponding end face with static iron core of moving iron core sealing block is not set, tightness is relatively poor during inflation.

The model utility content

At above deficiency, the utility model provides a kind of electromagnetic gas valve of controlling the multichannel break-make, and is simple in structure, easy to assembly, and tightness is good, the switching reaction velocity of gas circuit is fast.

For achieving the above object, the utility model is achieved through the following technical solutions: a kind of electromagnetic gas valve of controlling the multichannel break-make, comprise the gas circuit assembly, at least two valve bodies, connecting plate, valve body is connected with the gas circuit assembly by connecting plate, described gas circuit assembly comprises a main passage and at least two branched bottoms, main passage and branched bottom form threeway by an inner chamber, each branched bottom and inner chamber are independent mutually, described valve body comprises coil holder, coil, sealing block, moving iron core, spring, static iron core, housing, coil is enclosed within the exterior face of coil holder, static iron core has a central through bore, this central through bore is connected with the outside, the static iron core rear end is fixed on the housing, and the static iron core front end is fixed on coil holder endoporus bottom, spring, moving iron core, sealing block, be contained in the top of coil holder endoporus successively, sealing block is fixed on moving iron core front end, spring withstands between moving iron core and the static iron core, and the rear end of coil holder is fixed on the housing, and the inner chamber that the front end of coil holder passes connecting plate and gas circuit assembly is connected.

O shape circle is equipped with on the surface that above-mentioned coil holder contacts with gas circuit assembly inner chamber.

A sealing block is also fixed in above-mentioned moving iron core rear end.

Gas circuit total performance of the utility model has comprised main passage and each branch's gas circuit and inner chamber of gas circuit, each valve body can make things convenient for the gas circuit assembly by same connecting plate and is connected, structure is quite simple and easy to assembly, corresponding branch's gas circuit of each valve body and inner chamber, realization is to the break-make control of single branch gas circuit, also can control a plurality of or all branch's gas circuits, a plurality of the utility model can be controlled more branch gas circuit by interconnecting of main passage, use quite flexible, owing to the power on/off of coil gas circuit is controlled, the reaction velocity of valve body is fast.

Fix a sealing block at the surface of the gentle road of coil holder assembly inner chamber contact installing O shape circle and in moving iron core rear end, can prevent that gas when branch's gas circuit inflated from releasing from surface that coil holder contacts with gas circuit assembly inner chamber or from the central through bore of static iron core, improves whole tightness.

Description of drawings

Fig. 1 is the utility model stereogram;

Fig. 2 is the utility model three-dimensional exploded view;

Fig. 3 is that the utility model adopts gas circuit assembly plan view;

Fig. 4 is the A-A sectional drawing of Fig. 3;

Fig. 5 is the single branch of a utility model gas circuit opening state sectional drawing;

Fig. 6 is the single branch of a utility model gas circuit closed state sectional drawing.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Preferred embodiment: Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of electromagnetic gas valve of controlling the multichannel break-make, comprise gas circuit assembly 1, valve body 2 and valve body 2a, connecting plate 3,

valve body

2,2a is connected with gas circuit assembly 1 by connecting plate 3, gas circuit assembly 1 comprises a main passage and two branched bottoms 11 that are communicated with by 1a and 1b, 12, two inner chambers 111,121, branched bottom 11 forms threeway by inner chamber 111 and main passage, branched bottom 12 forms threeway by inner chamber 121 and main passage,

branched bottom

11 and 12 and

inner chamber

111 and 121 between mutually independent, valve body 2 comprises coil holder 21, coil 22, sealing block 23, moving iron core 24, spring 25, static iron core 26, housing 27, coil 22 is enclosed within the exterior face of coil holder 21, static iron core 26 has a central through bore 261, this central through bore 261 is connected with the outside, static iron core 26 rear ends are fixed on the housing 27, static iron core 26 front ends are fixed on coil holder 21 endoporus bottoms, spring 25, moving iron core 24, sealing block 23 is contained in the top of coil holder 21 endoporus successively, sealing block 23 is fixed on moving iron core 24 front ends, spring 25 withstands between moving iron core 24 and the static iron core 26, the rear end of coil holder 21 is fixed on the housing 27, and the inner chamber 111 that the front end of coil holder 21 passes connecting plate 3 and gas circuit assembly 1 is connected.

O shape circle 4 is equipped with on the surface that coil holder 21 contacts with gas circuit assembly 1 inner chamber 111.

A sealing block 5 is fixed in moving iron core 24 rear ends.

It is identical that valve body 2a and valve body 2 are finished, and is connected with the inner chamber 121 of gas circuit assembly 1 by connecting plate 3.

Shown in Figure 5, when the utility model uses, the end of the 1a of main passage and 1b is connected air inlet pipeline, the other end seals or is connected with other gas circuits, and the coil 22 of valve body 2 gets electric, and moving iron core 24 overcomes the thrust of spring 25 under the effect of magnetic force, make the sealing block 23 of front end break away from branch's gas circuit 11, the sealing block 5 that drives the rear end is blocked the central through bore 261 of static iron core 26, and this moment, the gas of main passage just can flow into branch's gas circuit 11 by inner chamber 111, realized the inflation to branch's gas circuit 11.

Shown in Figure 6, coil 22 dead electricity when valve body 2, moving iron core 24 promotes the sealing block 23 of front end and blocks branch's gas circuit 11 under spring 25 effects, moving iron core 24 back-end sealing pieces 5 break away from the central through bore 261 of static iron core 26, the gas of main passage just can't flow into branch's gas circuit 11, and the residual gas of branch's gas circuit 11 can be discharged by the central through bore 261 of static iron core 26, realizes the switching to branch's gas circuit 11.

The cooperation of valve body 2a and branch's gas circuit 12 and valve body 2 are identical with cooperating of branch gas circuit 11.

Branch of the present utility model gas circuit and valve body can also be provided with more a plurality of, link to each other by a plurality of main passages of the present utility model, control the power on/off of each valve body coil, just can control, realize the control that charges and discharge gas or realize equipment is moved a plurality of branches gas circuit to more branch gas circuit.

Claims

1. electromagnetic gas valve of controlling the multichannel break-make comprises gas circuit assembly, at least two valve bodies, connecting plate, and valve body is connected with the gas circuit assembly by connecting plate, it is characterized in that:

Described gas circuit assembly comprises a main passage and at least two branched bottoms, and main passage and branched bottom form threeway by an inner chamber, and each branched bottom and inner chamber are independent mutually;

Described valve body comprises coil holder, coil, sealing block, moving iron core, spring, static iron core, housing, coil is enclosed within the exterior face of coil holder, static iron core has a central through bore, this central through bore is connected with the outside, the static iron core rear end is fixed on the housing, the static iron core front end is fixed on coil holder endoporus bottom, spring, moving iron core, sealing block, be contained in the top of coil holder endoporus successively, sealing block is fixed on moving iron core front end, the rear end of coil holder is fixed on the housing, and the inner chamber that the front end of coil holder passes connecting plate and gas circuit assembly is connected.

2. the electromagnetic gas valve of control multichannel break-make according to claim 1 is characterized in that: O shape circle is equipped with on the surface that described coil holder contacts with gas circuit assembly inner chamber.

3. the electromagnetic gas valve of control multichannel break-make according to claim 1 is characterized in that: a sealing block is also fixed in described moving iron core rear end.