CN207864740U - A kind of direct-acting electromagnetic valve - Google Patents

Abstract

The utility model discloses a kind of direct-acting electromagnetic valves, including valve body and coil assembly, air inlet and gas outlet are offered on valve body, body base is equipped with bleeder port, valve body side is equipped with spare gas outlet, protective cover mounted inside has coil assembly, the dynamic iron core that is fixed on the static iron core of protective cover upper end and can move up and down is equipped in the casing of the coil assembly, it is provided with dynamic iron core spring between the static iron core and dynamic iron core, the dynamic iron core lower end is equipped with the valve rod for being connected to sealing valve, valve seating is equipped between the sealing valve and dynamic iron core, the valve seating center is equipped with the gas circuit being connected to bleeder port, valve seating contacts to form outlet side cover with upper caulking gum, the lower caulking gum contacts to form inlet end sealing surface with appliance stand, the external mounting of the sealing valve has tower spring.The utility model can control of the simple and quick realization to air flow rate, process；By spare gas outlet, airflow-reversing, cut-off and distribution function are realized.

Description

A kind of direct-acting electromagnetic valve

Technical field

The present invention relates to Solenoid Valve Technology field, more particularly to a kind of direct-acting electromagnetic valve.

Background technology

Solenoid valve is electromagnetically controlled industrial equipment, for controlling the automation foundation original paper of gas, belongs to actuator. Direction, flow, speed and the other parameters of medium are adjusted in industrial control system.Solenoid valve can coordinate different electricity Expected control is realized on road, and the precision and flexibility that control can ensure.There are many kinds of solenoid valves, is divided into from principle Three categories：Direct-acting electromagnetic valve, step direct-acting type electromagnetic valve, guide electromagnetic valve.

Existing general direct-acting electromagnetic valve mainly has the following two kinds structure：The first is to open up air admission hole on valve body and go out Stomata opens up gas vent on static iron core, since static iron core size is limited, so the aperture of gas vent can only be fixed, therefore Flow be also it is fixed, and the solenoid valve of this structure can only one-way only operation, i.e., according to the medium of regulation flow to use, ability The function of realizing solenoid valve, is typically used in pneumatic control；Second is that three holes are opened up on valve body, and three holes are in the same face On, valve rod is directly driven by electromagnetic force, can realize multi-functional, but bore is larger, and the bodily form is north big, complicated, cost Height, only a small part special installation use, and have very much limitation.

Utility model content

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of simple in structure, operation side is provided Just and not by the direct-acting electromagnetic valve of medium flow direction and pressure influence.

To achieve the above object, the utility model uses following technical scheme：

A kind of direct-acting electromagnetic valve, including valve body, protective cover and coil assembly, offer on the valve body air inlet and Gas outlet, air inlet are connected with inlet chamber, and gas outlet is connected with outlet chamber, and the body base is equipped with bleeder port, valve body one Side is equipped with spare gas outlet, and the protective cover mounted inside has a coil assembly, the coil assembly include coil rack, around The casing for being placed in the coil of coil rack, being assemblied in outside coil rack, interior be equipped with of described sleeve pipe are fixed on protective cover upper end Static iron core and the dynamic iron core that can be moved up and down are provided with dynamic iron core spring between the static iron core and dynamic iron core, described dynamic Iron core lower end, which is equipped with, is connected to the valve rod of sealing valve, is equipped with valve seating between the sealing valve and dynamic iron core, in the valve seating The heart is equipped with the gas circuit being connected to bleeder port, and valve seating contacts to form outlet side cover with the upper caulking gum of sealing valve upper end, institute The lower caulking gum for stating sealing valve lower end contacts to form inlet end sealing surface with appliance stand, and the external mounting of the sealing valve has Tower spring.

Further, the bleeder port is five, and one of bleeder port is convenient for being quickly found out bottom plate stretching screw Installation position, four additional bleeder port are symmetrical two-by-two along bottom plate.

Further, the valve body side is set there are two threaded mounting hole.

With the above structure, the utility model has the beneficial effect that：The utility model can guarantee in use, simply Fast implement the control to air flow rate, process；By spare gas outlet, the control of air current flow direction can be met, effectively changed Prior art media is become to need to orient the rule of circulation, has realized that commutation, cut-off and distribution function, in this way setting make this practicality Novel installation is using more convenient.

Description of the drawings

Fig. 1 is the schematic elevation view of the utility model；

Fig. 2 is the A-A diagrammatic cross-sections of the utility model；

Fig. 3 is the elevational schematic view of the utility model；

Fig. 4 is the part B schematic diagram of the utility model；

Fig. 5 is the air inlet sectional view of the utility model；

Fig. 6 is the gas outlet sectional view of the utility model；

In figure, 1, coil assembly；2, protective cover；3, threaded mounting hole；4, valve body；5, air inlet；6, gas outlet；7, bottom cover Plate stretching screw；8, bleeder port；9, spare gas outlet；10, coil；11, coil rack；12, static iron core；13, dynamic iron core；14、 Dynamic iron core spring；15, valve seating；16, valve rod；17, upper caulking gum；17a, outlet side sealing surface；18, sealing valve；19, tower Spring；20, lower caulking gum；20a, inlet end sealing surface；21, casing.

Specific implementation mode

The utility model will be further described below with reference to the accompanying drawings.

As shown in figures 1 to 6, a kind of direct-acting electromagnetic valve, including valve body 4, protective cover 2 and coil assembly 1, the valve body 4 On offer air inlet 5 and gas outlet 6, air inlet 5 is connected with inlet chamber, and gas outlet 6 is connected with outlet chamber, the valve body 4 Bottom is equipped with bleeder port 8, and 4 side of valve body is equipped with spare gas outlet 9, and 2 mounted inside of protective cover has coil assembly 1, institute The coil assembly 1 stated includes coil rack 11, the coil 10 for being wound on coil rack 11, the set being assemblied in outside coil rack 11 Pipe 21, described sleeve pipe 21 is interior equipped with the dynamic iron core 13 that is fixed on the static iron core 12 of 2 upper end of protective cover and can move up and down, described Static iron core 12 and dynamic iron core 13 between be provided with dynamic iron core spring 14,13 lower end of the dynamic iron core is equipped with and is connected to sealing valve 18 Valve rod 16, between the sealing valve 18 and dynamic iron core 13 be equipped with valve seating 15,15 center of the valve seating be equipped with and bleeder port 8 The gas circuit of connection, valve seating 15 contacts to form outlet side sealing surface 17a with the upper caulking gum 17 of 18 upper end of sealing valve, described close The lower caulking gum 20 of 18 lower end of envelope valve contacts to form inlet end sealing surface 20a with appliance stand 22, outside the sealing valve 18 Portion is equipped with tower spring 19.

The bleeder port 8 is five, and one of bleeder port 8 is convenient for being quickly found out the installation position of bottom plate stretching screw 7, Four additional bleeder port 8 is symmetrical two-by-two along bottom plate.

4 side of the valve body is set there are two threaded mounting hole 3.

Operation principle：

1）In the case where coil 10 is not powered on, under dynamic iron core 13 is moved under the action of gravity and dynamic iron core spring 14 Limit, dynamic iron core 13 push sealing valve 18 to move downward by valve rod 16 below, lower caulking gum 20 and the dress of sealing valve 18 It sets 22 pyramidal structure of holder to contact to form inlet end sealing surface 20a, excellent sealing is kept, at this time between air inlet 5 and gas outlet 6 Obstructed, valve does not export, and the gas circuit of bleeder port 8 is communicated with gas outlet 6 at this time, and 6 gas of gas outlet is released；

2）Electromagnetic force is generated after the energization of coil 10, dynamic iron core 13 overcomes the bullet of dynamic iron core spring 14 under the magnetic force Power is moved toward 12 direction of static iron core, and lower section sealing valve 18 rises under the action of valve rod 16, tower spring 19 and air pressure, sealing valve Caulking gum 17 contacts to form outlet side sealing surface 17a with 15 pyramidal structure of valve seating on 18 upper ends, and 18 upper surface of sealing valve is close The gas circuit of valve seating 15 is sealed, air inlet 5 is connected to gas outlet 6 at this time；When spare gas outlet 9 is open-minded, air inlet 5 and gas outlet 6 It is connected to spare gas outlet 9,9 air-flow of spare gas outlet realizes the shunting and commutation of air-flow.

The most preferred embodiment of the utility model has illustrated, the various change or remodeling made by those of ordinary skill in the art All without departing from the scope of the utility model.

Claims (3)

1. a kind of direct-acting electromagnetic valve, including valve body（4）, protective cover（2）And coil assembly（1）, the valve body（4）On open up There is air inlet（5）The gas outlet and（6）, air inlet（5）It is connected with inlet chamber, gas outlet（6）It is connected with outlet chamber, the valve body （4）Bottom is equipped with bleeder port（8）, valve body（4）Side is equipped with spare gas outlet（9）, it is characterised in that：The protective cover（2） Mounted inside has coil assembly（1）, the coil assembly（1）Including coil rack（11）, be wound on coil rack（11）'s Coil（10）, be assemblied in coil rack（11）External casing（21）, described sleeve pipe（21）Interior be equipped with is fixed on protective cover（2）On The static iron core at end（12）And the dynamic iron core that can be moved up and down（13）, the static iron core（12）And dynamic iron core（13）Between be arranged There is dynamic iron core spring（14）, the dynamic iron core lower end is equipped with and is connected to sealing valve（18）Valve rod（16）, the sealing valve（18） With dynamic iron core（13）Between be equipped with valve seating（15）, the valve seating（15）Center is equipped with and bleeder port（8）The gas circuit of connection, gas Gate seat（15）With sealing valve（18）The upper caulking gum of upper end（17）Contact forms outlet side cover（17a）, the sealing valve （18）The lower caulking gum of lower end（20）With appliance stand（22）Contact forms inlet end sealing surface（20a）, the sealing valve （18）External mounting have tower spring（19）.

2. a kind of direct-acting electromagnetic valve according to claim 1, it is characterised in that：The bleeder port（8）It is five, wherein One bleeder port（8）Convenient for being quickly found out bottom plate stretching screw（7）Installation position, four additional bleeder port（8）Along bottom plate It is symmetrical two-by-two.

3. a kind of direct-acting electromagnetic valve according to claim 2, it is characterised in that：The valve body（4）There are two side is set Threaded mounting hole（3）.