CN200971968Y

CN200971968Y - Magnetic valve

Info

Publication number: CN200971968Y
Application number: CN 200620015079
Authority: CN
Inventors: 倪国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-29
Filing date: 2006-09-29
Publication date: 2007-11-07
Anticipated expiration: 2016-09-29

Abstract

The utility model relates to an electromagnetic valve, which comprises a valve body, an iron core and a spring. The valve body is provided with a through hole for the flowing of the fluid, and the spring is arranged between the iron core and the through hole of the fluid. The iron core is provided with a seal packing, which is positioned in the installation hole of the iron core, and the seal packing is higher than the end face of the iron core. In order to further increase noise, the other end of the iron core is provided with a bumper pad, and the bumper pad can be made up by adopting the rubber material, and the bumper pad is positioned in the installation hole and higher than the end face of the iron core. For the electromagnetic valve afforded by the utility model, the seal packing is higher than the end face of the iron core, so the seal packing receives bigger pressure when in plugging the trough hole of the fluid, which has better sealing effect, and when the iron core has a collision with the valve body, effectively having the effect of cushion, the noise is reduced, and the service life of the product is effectively prolonged. When adding the bumper pad, the elimination of the noise has better effect, and the service life is prolonged further. The utility model is of a simple structure, easy manufacturing, which can be widely applicable for the control of the gas and the liquid.

Description

A kind of solenoid valve

Technical field

The utility model relates to a kind of automation foundation element, relates in particular to a kind of solenoid valve.

Background technique

Solenoid valve is a kind of automation foundation element, be used to control fluid flow direction, its working principle is whether to switch on by electromagnetic coil to attracting inner iron core to move around through hole is plugged or thereby conducting control fluid flows, be illustrated in figure 1 as electromagnetic valve structure figure commonly used in the prior art, exist following defective: 1, its sealing gasket is concordant with iron core mounting hole end face, make iron core when action and through hole position rigid collision, noise is bigger, and long-term use easily causes member to damage, working life is not long, and sealing is also unreal; 2, iron core top when iron core moves directly with the valve body collision, equally also exist because be rigid collision, noise is bigger, and long-term use easily causes the situation of member damage, influences the working life of product.

The model utility content

The purpose of this utility model provides a kind of solenoid valve that reduces noise, improves sealing effect.

The technological scheme that the utility model adopted is: solenoid valve comprises valve body, electromagnetic coil, iron core, spring, described valve body is provided with fluid turnover through hole, described spring is located between iron core and the fluid turnover through hole, described iron core is provided with sealing gasket, described sealing gasket is loaded in the iron core mounting hole, and described sealing gasket exceeds the iron core end face.

For further reducing noise, be provided with cushion pad at the iron core the other end, cushion pad can adopt the rubber elastomeric material to make, and described cushion pad preferably is installed in the mounting hole and exceeds the iron core end face.

In the such scheme, sealing gasket, cushion pad exceed iron core end face 0.1～2MM, are preferably 0.5MM.

The beneficial effects of the utility model are: solenoid valve described in the utility model is because sealing gasket exceeds the iron core end face, sealing gasket is under pressure bigger when shutoff fluid turnover through hole, sealing effect is better, and when iron core and valve body collision, can effectively play cushioning effect, reduced noise, also can effectively prolong life of product, after further increasing cushion pad, the effect that abates the noise is better, more can prolong life of product, the utility model is simple in structure, and is easy to manufacture, can be widely used in fluid controls such as gas, liquid.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

Fig. 1 is the structural representation of solenoid valve in the prior art;

Fig. 2 is the external shape schematic representation of the utility model embodiment;

Fig. 3 is the internal structure schematic representation of the utility model embodiment;

Fig. 4 is the decomposition texture schematic representation of the utility model embodiment.

Embodiment

The utility model can be used for gas, various fluid controls such as liquid, solenoid valve with control gaseous is that example describes in the present embodiment, Figure 2 shows that outline drawing, power line 2 is arranged on the solenoid valve, Fig. 3 is the internal structure schematic representation, as shown in Figure 3, solenoid valve comprises valve body, electromagnetic coil, iron core 6, spring 8, valve body is made of body frame 9 and body frame lid 1, body frame 9 is provided with into/and outlet nozzle 10 is as fluid turnover through hole, electromagnetic coil is made on bobbin 4 by coil 3, spring 8, iron core 6 is located in the electromagnetic coil, spring 8 is located at iron core 6 and advance/outlet nozzle 10 between, iron core 6 is provided with sealing gasket 7, sealing gasket 7 is loaded on and exceeds iron core 6 end face 0.5MM in iron core 6 mounting holes, and iron core 6 the other ends are provided with rubber buffer 5, and rubber buffer 5 is installed in the mounting hole and exceeds iron core 6 end face 0.5MM.

Figure 4 shows that the decomposition texture schematic representation, as shown in the figure, during installation, earlier spring 8 is enclosed within on the body frame 9, after being contained in sealing gasket 7, rubber buffer 5 in iron core 6 mounting holes, coil 3 is formed electromagnetic coil around bobbin 4, and iron core 6 is put in body frame 9 backs of packing into simultaneously in the electromagnetic coil by body frame lid 1 fixing getting final product.

During use, after passing through, electromagnetic coil produces magnetic force, attracting iron core 6 to overcome spring 8 resistances moves downward, thereby sealing gasket 7 is blocked into/outlet nozzle 10, because of it exceeds iron core 6 end face 0.5MM, therefore make iron core 6 end faces and advance/outlet nozzle 10 exists gap rather than direct rigid collision, iron core 6 with advance/can play buffer function during the collision of outlet nozzle 10 positions, when electromagnetic coil cuts off the power supply, the iron core 6 that loses magnetic attraction resets under the elastic force effect of spring 8, also exceed iron core 6 end face 0.5MMs because of rubber buffer 5 peaces this moment, when colliding with bobbin 4 tops, iron core 6 also can play buffer function like this, noise when therefore overall structure greatly reduces iron core 6 actions, and owing to cushioned the working life that impulse force has also prolonged product simultaneously.

Claims

1, a kind of solenoid valve, comprise valve body, electromagnetic coil, iron core, spring, described valve body is provided with fluid turnover through hole, described spring is located between iron core and the fluid turnover through hole, described iron core is provided with sealing gasket, it is characterized in that: described sealing gasket is loaded in the iron core mounting hole, and described sealing gasket exceeds the iron core end face.

2, solenoid valve according to claim 1, it is characterized in that: the iron core the other end is provided with cushion pad.

3, as solenoid valve as described in the claim 2, it is characterized in that: described cushion pad is installed in the mounting hole and exceeds the iron core end face.

4, as solenoid valve as described in the claim 1,2 or 3, it is characterized in that: described sealing gasket, cushion pad exceed iron core end face 0.1～2MM.

5, as solenoid valve as described in the claim 4, it is characterized in that: described sealing gasket, cushion pad exceed iron core end face 0.5MM.