CN208670217U - A kind of direct-acting electromagnetic valve - Google Patents

Abstract

The utility model discloses a kind of direct-acting electromagnetic valves, it include: valve seat, two sides at the top of valve seat are fixed with coil, top in valve seat is equipped with groove, the top of groove is fixedly connected with one end of spring, the other end of spring is fixedly connected with spool, the top of valve seat is equipped with cavity, piston is equipped in cavity, the top of spool is fixedly connected with connecting rod, connecting rod is fixedly connected with the piston, damping fluid is filled in cavity, the bottom of spool two sides is all provided with there are two valve opening, bottom end in valve seat is fixedly connected with suppression seat, the top and middle part of suppression seat two sides are equipped with circular hole, this programme, it is designed by the structure of spool and suppression seat, reduce influence of the hydraulic pressure to the solenoid valve leakproofness, improve solenoid valve leakproofness；By stablizing the movement of spool using damping fluid, increase the stability when solenoid valve opens and closes；It is moved by setting electric cylinder control valve core, so that the solenoid valve manual can open and close, increases degree easy to use.

Description

A kind of direct-acting electromagnetic valve

Technical field

The application designs a kind of solenoid valve, specifically, being related to a kind of direct-acting electromagnetic valve.

Background technique

Direct-acting electromagnetic valve is a kind of simple solenoid valve of structure, direct-acting electromagnetic valve, and when energization, electromagnetic coil generates electricity Magnetic force lifts closure member from valve seat, and valve is opened；When power-off, electromagnetic force disappears, and spring handle closure member is pressed on valve seat, valve Door is closed.That generally there are valve tightness is not good enough for traditional direct-acting electromagnetic valve, and when opening and closing, not due to electromagnetism Stability is easy to cause spool Caton when opening or closing, be unfavorable for using.

Therefore to further increase the leakproofness of direct-acting electromagnetic valve and stability, it is desirable to provide a kind of direct-acting electromagnetic valve.

Utility model content

In view of this, the application it is to be solved be in routine techniques direct-acting electromagnetic valve generally there are valve tightness not When reaching, and opening and closing, due to the unstability of electromagnetism, it is easy to cause spool Caton when opening or closing, is unfavorable for making The technical issues of using.The utility model provides a kind of direct-acting electromagnetic valve, compared to routine techniques, can play raising direct acting The effect of the leakproofness and stability of formula solenoid valve.

In order to solve the above-mentioned technical problem, the utility model is achieved by the following technical programs:

The utility model provides a kind of direct-acting electromagnetic valve, comprising: valve seat, the two sides fixation at the top of the valve seat are set There is coil, the top in the valve seat is equipped with groove, and the top of the groove is fixedly connected with one end of spring, the spring The other end is fixedly connected with spool, and the top of the valve seat is equipped with cavity, is equipped with piston, the top of the spool in the cavity It is fixedly connected with connecting rod, the bottom end that one end of the connecting rod is inserted through the cavity is fixedly connected with the piston, described It is filled with damping fluid in cavity, the bottom of the spool two sides is all provided with there are two valve opening, and the bottom end in the valve seat is fixedly connected There is suppression seat, the top and middle part of suppression seat two sides are equipped with circular hole, and the inner wall of the suppression seat is fixedly connected with sealing Circle, the top and middle part of the sealing ring two sides are equipped with aperture, and the aperture is corresponding with the position of the circular hole, size phase Together, the bottom end of the spool and the sealing ring are socketed.

As a kind of optimal technical scheme of the utility model, in a kind of possible embodiment, at the top of the spool Side be equipped with baffle, the side of the spool is fixed with electric cylinder, the piston end of the electric cylinder and the baffle Bottom end be fixedly connected, the electric cylinder is electrically connected by being installed on the control switch on the valve seat top with external power supply It connects.

As a kind of optimal technical scheme of the utility model, in a kind of possible embodiment, the circular hole and institute The diameter for stating valve opening is equal, the distance between two described circular holes and the distance between two valve openings with the valve opening Diameter length is equal.

As a kind of optimal technical scheme of the utility model, in a kind of possible embodiment, the electric cylinder The collapsing length of piston end is equal with the diameter length of the valve opening.

As a kind of optimal technical scheme of the utility model, in a kind of possible embodiment, the coil passes through Outside connected switch and external power supply are electrically connected.

Compared with prior art, the application can be obtained including following technical effect:

1) direct-acting electromagnetic valve in the application is designed by the structure of spool and suppression seat, reduces hydraulic pressure to the electromagnetism The influence of valve leakproofness improves solenoid valve leakproofness.

2) direct-acting electromagnetic valve in the application is increased the solenoid valve and opened by being stablized the movement of spool using damping fluid Stability when opening and closing.

3) direct-acting electromagnetic valve in the application is moved by setting electric cylinder control valve core, so that the solenoid valve can Manual control opens and closes, and increases degree easy to use.

Certainly, any product for implementing the application must be not necessarily required to reach all the above technical effect simultaneously.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is a kind of structural schematic diagram of direct-acting electromagnetic valve of the embodiment of the present application；

Fig. 2 is a kind of structural schematic diagram of direct-acting electromagnetic valve suppression seat of the embodiment of the present application；

Fig. 3 is a kind of structural schematic diagram of direct driving type electromagnetic valve core of the embodiment of the present application.

In figure: 1, valve seat；2, coil；3, spool；4, spring；5, piston；6, cavity；7, suppression seat；8, sealing ring；9, circle Hole；10, valve opening；11, electric cylinder；12, baffle；13, control switch.

Specific embodiment

Presently filed embodiment is described in detail below in conjunction with accompanying drawings and embodiments, how the application is applied whereby Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.

As shown in Figure 1-3, a kind of direct-acting electromagnetic valve of the utility model, comprising: the two sides of valve seat 1,1 top of valve seat are solid Surely be equipped with coil 2, the top in valve seat 1 is equipped with groove, and the top of groove is fixedly connected with one end of spring 4, spring 4 it is another End is fixedly connected with spool 3, and the top of valve seat 1 is equipped with cavity 6, is equipped with piston 5 in cavity 6, the top of spool 3 is fixedly connected with Connecting rod, the bottom end that one end of connecting rod is inserted through cavity 6 are fixedly connected with piston 5, and damping fluid is filled in cavity 6, due to The special nature of damping fluid enables to the movement of spool 3 to tend towards stability, and the bottom of 3 two sides of spool is all provided with there are two valve opening 10, Bottom end in valve seat 1 is fixedly connected with suppression seat 7, and the top and middle part of 7 two sides of suppression seat are equipped with circular hole 9, suppression seat 7 it is interior Wall is fixedly connected with sealing ring 8, and the top and middle part of 8 two sides of sealing ring are equipped with aperture, and aperture is corresponding with the position of circular hole 9, Size is identical, and the bottom end of spool 3 and sealing ring 8 are socketed, and before coil 2 is powered, the bottom end of spool 3 is in the bottom inside suppression seat 7 End, two circular holes 9 and two 10 positions of valve opening are not be overlapped, solenoid valve sealing, and hydraulic pressure will not cause the leakproofness of solenoid valve Too big influence, when coil 2 is powered, spool 3 moves up under electromagnetic action, and two circular holes 9 and two 10 positions of valve opening are gradually Overlapping, solenoid valve opening degree are gradually increased.

Preferably, the side at 3 top of spool is equipped with baffle 12, and the side of spool 3 is fixed with electric cylinder 11, electronic gas The piston end of cylinder 11 is fixedly connected with the bottom end of baffle 12, and electric cylinder 11 is by being installed on the control switch 13 on 1 top of valve seat It is electrically connected with external power supply, conveniently manually controls the electromagnetic valve switch.

Preferably, circular hole 9 is equal with the diameter of valve opening 10, between the distance between two circular holes 9 and two valve openings 10 Distance is equal with the diameter length of valve opening 10, and when two circular holes 9 and not be overlapped two 10 positions of valve opening, solenoid valve is completely close It closes, when two circular holes 9 and gradually be overlapped two 10 positions of valve opening, solenoid valve opening degree is gradually increased, convenient for control solenoid valve Folding.

Preferably, the collapsing length of 11 piston end of electric cylinder is equal with the diameter length of valve opening 10, so that electric cylinder 11 piston end can control the opening and closing degree of the solenoid valve from most during collapsing length minimum is maximum to collapsing length It is small to arrive maximum.

Preferably, coil 2 is electrically connected by outside connected switch and external power supply, facilitates the magnetism of control coil 2, to control Electromagnetic valve switch processed.

When specific works, which is installed on designated position, due to the direct acting by direct-acting electromagnetic valve in the application Formula solenoid valve be normally closed solenoid valve, in 2 no power of coil, the bottom end of spool 3 is bonded with the bottom end of suppression seat 7, circular hole 9 and The position of valve opening 10 is not overlapped, which is in close state, when needing to open the solenoid valve, by switching to coil 2 It is powered, makes coil 2 that there is magnetism, 2 magnetic absorption spool 3 of coil moves up, and two circular holes 9 and two 10 positions of valve opening are gradually When overlapping, solenoid valve opening degree is gradually increased, until two circular holes 9 and two 10 positions of valve opening are completely overlapped, the solenoid valve Opening degree reach maximum, when needing to close the solenoid valve, the power supply of coil 2 is disconnected by switch, coil 2 is magnetic to disappear, Spool 3 moves downward under the elastic force effect of spring 4, until two circular holes 9 and two 10 positions of valve opening are not be overlapped, solenoid valve is closed It closes, when solenoid valve magnetic induction in special circumstances is failed, the piston end motion of electric cylinder 11, electricity can be controlled by control switch 13 Take offence cylinder 11 piston end by baffle 12 with movable valve plug 3 move, to control electromagnetic valve switch.

As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in Technical problem basically reaches the technical effect.In addition, " coupling " word includes any direct and indirect electric property coupling herein Means.Therefore, if it is described herein that a first device is coupled to a second device, then representing the first device can directly electrical coupling It is connected to the second device, or the second device indirectly electrically coupled through other devices or coupling means.Specification Subsequent descriptions be implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application, It is not intended to limit the scope of the present application.The protection scope of the application is as defined by the appended claims.

It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability Include, so that commodity or system including a series of elements not only include those elements, but also including not clear The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also There are other identical elements.

Several preferred embodiments of the present invention have shown and described in above description, but as previously described, it should be understood that this Utility model is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various Other combinations, modification and environment, and above-mentioned introduction or related fields can be passed through within the scope of the inventive concept described herein Technology or knowledge be modified.And changes and modifications made by those skilled in the art do not depart from the spirit and model of the utility model It encloses, then it all should be in the protection scope of the appended claims for the utility model.

Claims (5)

1. a kind of direct-acting electromagnetic valve, including valve seat (1), which is characterized in that the two sides at the top of the valve seat (1) are fixed with Coil (2), the top in the valve seat (1) are equipped with groove, and the top of the groove is fixedly connected with one end of spring (4), institute The other end for stating spring (4) is fixedly connected with spool (3), and the top of the valve seat (1) is equipped with cavity (6), in the cavity (6) Equipped with piston (5), the top of the spool (3) is fixedly connected with connecting rod, and one end of the connecting rod is inserted through the cavity (6) bottom end is fixedly connected with the piston (5), and damping fluid, the bottom of spool (3) two sides are filled in the cavity (6) Portion is all provided with there are two valve opening (10), and the bottom end in the valve seat (1) is fixedly connected with suppression seat (7), suppression seat (7) two sides Top and middle part be equipped with circular hole (9), the inner wall of the suppression seat (7) is fixedly connected with sealing ring (8), the sealing ring (8) top of two sides and middle part are equipped with aperture, and the aperture is corresponding with the position of the circular hole (9), the bottom of the spool (3) End is socketed with the sealing ring (8).

2. a kind of direct-acting electromagnetic valve as described in claim 1, which is characterized in that the side at the top of the spool (3) is equipped with The side of baffle (12), the spool (3) is fixed with electric cylinder (11), the piston end of the electric cylinder (11) with it is described The bottom end of baffle (12) is fixedly connected, and the electric cylinder (11) is by being installed on the control switch on the valve seat (1) top (13) it is electrically connected with external power supply.

3. a kind of direct-acting electromagnetic valve as described in claim 1, which is characterized in that the circular hole (9) and the valve opening (10) Diameter it is equal, the distance between two described circular holes (9) and the distance between two valve openings (10) with the valve opening (10) diameter is equal.

4. a kind of direct-acting electromagnetic valve as claimed in claim 2, which is characterized in that electric cylinder (11) piston end is stretched Contracting length is equal with the diameter of the valve opening (10).

5. a kind of direct-acting electromagnetic valve as described in claim 1, which is characterized in that the coil (2) by outside connected switch with External power supply is electrically connected.