CN208967193U

CN208967193U - Solenoid valve

Info

Publication number: CN208967193U
Application number: CN201821735200.1U
Authority: CN
Inventors: 黄小伟
Original assignee: 黄小伟
Current assignee: Changzhou Universal Electronics Co., Ltd.
Priority date: 2018-10-24
Filing date: 2018-10-24
Publication date: 2019-06-11
Anticipated expiration: 2028-10-24

Abstract

The utility model provides a kind of solenoid valve, is related to valve field.The solenoid valve includes valve body, coil holder, main valve plug, first spring, spring base, pilot valve, mandril and iron core, valve body is connect with coil holder, fluid inlet and fluid outlet are provided on valve body, main valve plug is movably disposed in valve body, the both ends of first spring are held in main valve plug and spring base respectively, throttle orifice is offered on the side wall of spring base, pilot valve protrudes into spring base, iron core sleeve is set to mandril, coil is provided in coil holder, iron core is movably disposed in the inside of coil holder, mandril is used for the opposite valve body under the drive of iron core, to push pilot valve, so that pilot valve opens throttle orifice or adjusts the aperture of throttle orifice.The solenoid valve can be directly changed the aperture of the throttle orifice on the side wall of spring base by the movement of pilot valve, to achieve the purpose that change flow, so that the first spring is generated persistently variable damping force to pilot valve, improve the performance of solenoid valve.

Description

Solenoid valve

Technical field

The utility model relates to valve fields, in particular to a kind of solenoid valve.

Background technique

Solenoid valve (Electromagnetic valve) is electromagnetically controlled industrial equipment, is for controlling fluid Automatic foundamental element belongs to actuator, however it is not limited to hydraulic, pneumatic.In industrial control system adjust medium direction, Flow, speed and other parameters.Solenoid valve can cooperate different circuits to realize expected control, and the precision that controls and Flexibility can guarantee.Currently, a kind of solenoid valve in the market, the damping force of spring suffered by spool is not persistently variable , performance is bad.

Utility model content

The purpose of this utility model is to provide a kind of solenoid valve, persistently variable damping force can be generated.

The embodiments of the present invention are achieved in that

A kind of solenoid valve, including valve body, coil holder, main valve plug, the first spring, spring base, pilot valve, mandril and iron Core, the valve body are connect with the coil holder, and the fluid inlet and fluid outlet that can be interconnected, institute are provided on the valve body Main valve plug is stated to be movably disposed in the valve body, for closing or opening the fluid inlet, the two of first spring End is held in the main valve plug and the spring base respectively, offers on the side wall of the spring base and its internal throttling being connected to Hole, the pilot valve protrude into the spring base, and the iron core sleeve is set to the mandril, and setting is wired in the coil holder Circle, the iron core are movably disposed in the inside of the coil holder, and the mandril is used for opposite under the drive of the iron core The valve body, to push the pilot valve, so that the pilot valve opens the throttle orifice or adjusts the section The aperture of discharge orifice.

Further, the pilot valve includes sequentially connected occlusion part, interconnecting part and support division, and the occlusion part is used In blocking completely, partial occlusion or fully opening the throttle orifice, the diameter of the interconnecting part is less than the straight of the occlusion part Diameter, has gap between the interconnecting part and the inner wall of the spring base, the support division is used in the promotion by the mandril Effect, to drive the occlusion part movement by the interconnecting part.

Further, the solenoid valve further includes second spring, and the both ends of the second spring are held in the bullet respectively Between spring abutment and the support division, the mandril is used for when coil electrical current reduces, along the side far from the pilot valve To movement, and the support division, under the resilient force of the second spring, the interconnecting part drives the occlusion part, with The aperture for making the occlusion part open the throttle orifice reduces.

Further, the mandril is used to further push the support division when the coil electrical current increases, with The aperture for making the occlusion part open the throttle orifice increases.

Further, the valve body includes shell, valve pocket and valve seat, and the coil holder protrudes into institute by one end of the shell It states shell and is connect with the shell, the valve pocket is installed on the other end of the shell, and the valve seat is installed on the valve pocket, The fluid inlet is set on the valve seat, and the fluid outlet is set on the valve pocket, the main valve plug, described first Spring, the spring base and the pilot valve are all set in the valve pocket.

Further, the solenoid valve further includes bolster and third spring, is provided with buffer channel in the valve pocket, institute The connects with the internal cavities of buffer channel Yu the spring base are stated, the bolster is set to one end outlet of the buffer channel Place, one end of the third spring are held in the inner wall of the shell, and the other end is held in the bolster.

Further, the solenoid valve further includes the first guidance set, first guidance set include the first guide sleeve, Block and guide sleeve, the guide sleeve are sheathed on the mandril outside one end of the pilot valve, and the block is sheathed on described Outside guide sleeve, first guide sleeve is sheathed on outside the block, and first guide sleeve is installed on the shell and the coil In seat.

Further, the solenoid valve further includes the second guidance set, and second guidance set includes the second guide sleeve And axle sleeve, the axle sleeve are sheathed on outside the one end of the mandril far from the pilot valve, second guide sleeve is sheathed on institute It states outside axle sleeve, second guide sleeve is installed in the coil holder.

Further, the solenoid valve further includes magnetic shield, the magnetic shield be set to the iron core and the coil it Between.

Further, intercommunicating pore is provided on the main valve plug, the fluid inlet passes through the intercommunicating pore and the valve The inside of body is connected to.

The beneficial effect of solenoid valve provided by the embodiment of the utility model is: solenoid valve provided by the embodiment of the utility model Since throttle orifice is set on the side wall of spring base, can be directly changed on the side wall of spring base by the movement of pilot valve The aperture of throttle orifice makes flow generate variation, to achieve the purpose that change flow, holds the first spring to pilot valve generation Continue variable damping force, improves the performance of solenoid valve.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the overall structure diagram of solenoid valve provided by the embodiment of the utility model；

Fig. 2 is the partial structural diagram of solenoid valve provided by the embodiment of the utility model；

Fig. 3 is another partial structural diagram of solenoid valve provided by the embodiment of the utility model.

Icon: 1- solenoid valve；10- valve body；11- fluid inlet；12- fluid outlet；13- shell；14- valve pocket；15- valve Seat；16- gasket；The first sealing ring of 17-；18- circlip；20- coil holder；21- coil；30- main valve plug；31- intercommunicating pore；40- One spring；50- spring base；51- throttle orifice；52- diaphragm；60- pilot valve；61- occlusion part；62- interconnecting part；63- support division； 70- mandril；71- iron core；80- second spring；90- bolster；91- third spring；The first guidance set of 110-；111- first is led To set；112- block；113- guide sleeve；The second sealing ring of 114-；The second guidance set of 120-；The second guide sleeve of 121-；122- axis Set；130- magnetic shield.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be understood that the orientation of the instructions such as term " on ", "lower", "inner", "outside" Or positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put The orientation or positional relationship that orientation or positional relationship or those skilled in the art usually understand is merely for convenience of describing The utility model and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy Fixed orientation construction and operation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply Relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Embodiment

Fig. 1 is the overall structure diagram of solenoid valve provided by the embodiment of the utility model；Fig. 2 is the utility model implementation The partial structural diagram for the solenoid valve that example provides；Fig. 3 is another part knot of solenoid valve provided by the embodiment of the utility model Structure schematic diagram；FIG. 1 to FIG. 3 is please referred to, a kind of solenoid valve 1 is present embodiments provided, which includes valve body 10, coil holder 20, main valve plug 30, the first spring 40, spring base 50, pilot valve 60, mandril 70 and iron core 71.

Wherein, valve body 10 is connect with coil holder 20, and the fluid inlet 11 and fluid that can be interconnected are provided on valve body 10 Outlet 12.Main valve plug 30 is movably disposed in valve body 10, for closing or opening fluid inlet 11.The two of first spring 40 End is held in main valve plug 30 and spring base 50 respectively.It is offered on the side wall of spring base 50 and its internal throttle orifice 51 being connected to. Pilot valve 60 protrudes into spring base 50.Iron core 71 is sheathed on mandril 70, and coil 21 is provided in coil holder 20, and iron core 71 can live It is set to the inside of coil holder 20 dynamicly.Mandril 70 is used for the opposite valve body 10 under the drive of iron core 71 and moves, to push guide Spool 60, so that pilot valve 60 opens throttle orifice 51 or adjusts the aperture of throttle orifice 51.

Further, valve body 10 includes shell 13, valve pocket 14 and valve seat 15.Coil holder 20 protrudes into shell by one end of shell 13 Body 13 is simultaneously connect with shell 13, and valve pocket 14 is installed on the other end of shell 13, and valve seat 15 is installed on valve pocket 14, and fluid inlet 11 is set It is placed on valve seat 15, fluid outlet 12 is set on valve pocket 14, main valve plug 30, the first spring 40, spring base 50 and pilot valve 60 are all set in valve pocket 14.

In the present embodiment, valve pocket 14 is sheathed on outside valve seat 15, and is installed in one end of shell 13.14 inside of valve pocket and line The inside of ring support 20 is connected to.In addition, being provided with gasket 16 between valve pocket 14 and valve seat 15, risen between valve pocket 14 and valve seat 15 close Envelope effect.In addition, the outside of shell 13 is provided with the first sealing ring 17, for playing when shell 13 and external structure cooperation Sealing function.Optionally, the first sealing ring 17 is O-ring.In addition, being provided with circlip 18 between shell 13 and coil holder 20.

The inside of spring base 50 has a cavity, and the throttle orifice 51 opened up on the side wall of spring base 50 is connected to the cavity, Pilot valve 60 protrudes into the cavity.Diaphragm 52 is provided on spring base 50, one end of diaphragm 52 is connect with spring base 50, another End is set between main valve plug 30 and valve pocket 14.By the way that diaphragm 52 is arranged, prevent fluid from transporting in spring base 50 with respect to main valve plug 30 Fluid enters between spring base 50 and valve pocket 14 when dynamic.

In the present embodiment, intercommunicating pore 31 is provided on main valve plug 30, fluid inlet 11 passes through intercommunicating pore 31 and valve body 10 Inside connection.It should be appreciated that fluid inlet 11 inside intercommunicating pore 31 and valve pocket 14 by being connected to.

Further, solenoid valve 1 further includes second spring 80.The both ends of second spring 80 are held in 50 He of spring base respectively In pilot valve 60.Second spring 80 plays buffer function between spring base 50 and pilot valve 60.

Further, solenoid valve 1 further includes bolster 90 and third spring 91, is provided with buffer channel in valve pocket 14, is delayed The connects with the internal cavities in channel Yu spring base 50 are rushed, bolster 90 is set to one end exit of buffer channel, third spring 91 One end be held in the inner wall of shell 13, the other end is held in bolster 90.In the present embodiment, bolster 90 uses steel ball.When When Fluid pressure inside inflow valve body 10 is larger, fluid forces bolster 90 compresses third spring 91, and it is logical that fluid enters buffering Road, to play the role of pressure release.

Further, pilot valve 60 includes sequentially connected occlusion part 61, interconnecting part 62 and support division 63, occlusion part 61 For blocking completely, partial occlusion or throttle orifice 51 is fully opened, the diameter of interconnecting part 62 is less than the diameter of occlusion part 61, even There is gap, support division 63 is used to connect in the impetus by mandril 70 to pass through between logical portion 62 and the inner wall of spring base 50 Logical portion 62 drives occlusion part 61 to move.

In the present embodiment, the both ends of second spring 80 are held in respectively between spring base 50 and support division 63.Mandril 70 is used In when 21 electrical current of coil reduces, moved along the direction far from pilot valve 60, and support division 63 is in second spring 80 Resilient force under, interconnecting part 62 drive occlusion part 61 so that occlusion part 61 open throttle orifice 51 aperture reduce.In addition, Mandril 70 is also used to further push support division 63 when 21 electrical current of coil increases, so that occlusion part 61 opens throttle orifice 51 aperture increases.

It should be appreciated that the solenoid valve 1 in the present embodiment passes through the fluid of solenoid valve 1 when 21 electrical current of coil increases Flow it is bigger；When 21 electrical current of coil reduces, the flow by the fluid of solenoid valve 1 is smaller, convenient for control solenoid valve 1 Flow.

Further, solenoid valve 1 further includes the first guidance set 110, for playing the guiding role to mandril 70.First guiding Component 110 includes the first guide sleeve 111, block 112 and guide sleeve 113, and guide sleeve 113 is sheathed on mandril 70 close to pilot valve 60 Outside one end, block 112 is sheathed on outside guide sleeve 113, and the first guide sleeve 111 is sheathed on outside block 112, the installation of the first guide sleeve 111 In in shell 13 and coil holder 20.

In addition, being provided with the second sealing ring 114 between the first guide sleeve 111 and shell 13 in the present embodiment, playing sealing Effect between first guide sleeve 111 and shell 13.Optionally, the second sealing ring 114 is O-ring.

Solenoid valve 1 further includes the second guidance set 120, for playing the guiding role to mandril 70.Second guidance set 120 packet The second guide sleeve 121 and axle sleeve 122 are included, axle sleeve 122 is sheathed on outside the one end of mandril 70 far from pilot valve 60, the second guide sleeve 121 are sheathed on outside axle sleeve 122, and the second guide sleeve 121 is installed in coil holder 20.

Solenoid valve 1 further includes magnetic shield 130, and magnetic shield 130 is set between iron core 71 and coil 21.

In the present embodiment, iron core 71 is sheathed on outside mandril 70, and between guide sleeve 113 and axle sleeve 122.Magnetic shield 130 It is set to position corresponding with iron core 71.In the present embodiment, 130 one end of magnetic shield is sheathed on outside the first guide sleeve 111, the other end It is sheathed on outside the second guide sleeve 121.

In conclusion solenoid valve provided in this embodiment, valve body 10 is connect with coil holder 20, and being provided on valve body 10 can Interconnected fluid inlet 11 and fluid outlet 12.Main valve plug 30 is movably disposed in valve body 10, for closing or beating Open fluid inlet 11.The both ends of first spring 40 are held in main valve plug 30 and spring base 50 respectively.It is opened on the side wall of spring base 50 Equipped with the throttle orifice 51 being connected to its inside.Pilot valve 60 protrudes into spring base 50.Iron core 71 is sheathed on mandril 70, coil holder Coil 21 is provided in 20, iron core 71 is movably disposed in the inside of coil holder 20.Mandril 70 is used for the drive in iron core 71 Lower opposite valve body 10 moves, to push pilot valve 60, so that pilot valve 60 opens throttle orifice 51 or adjusts throttle orifice 51 Aperture.

Solenoid valve 1 provided in this embodiment is passed through the electric current of coil 21 by changing, and makes mandril 70 under the drive of iron core 71 Pilot valve 60 is pushed, is set to due to throttle orifice 51 on the side wall of spring base 50, it can be straight by the movement of pilot valve 60 The aperture for connecing the throttle orifice 51 on the side wall for changing spring base 50, makes flow generate variation, thus achieve the purpose that change flow, So that the first spring 40 is generated persistently variable damping force to pilot valve 60, improves the performance of solenoid valve 1.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims

1. a kind of solenoid valve, which is characterized in that including valve body, coil holder, main valve plug, the first spring, spring base, pilot valve, Mandril and iron core, the valve body are connect with the coil holder, and the fluid inlet and stream that can be interconnected are provided on the valve body Body outlet, the main valve plug is movably disposed in the valve body, for closing or opening the fluid inlet, described first The both ends of spring are held in the main valve plug and the spring base respectively, offer on the side wall of the spring base and connect with inside it Logical throttle orifice, the pilot valve protrude into the spring base, and the iron core sleeve is set to the mandril, set in the coil holder It is equipped with coil, the iron core is movably disposed in the inside of the coil holder, and the mandril is used for the drive in the iron core Under the relatively described valve body, to push the pilot valve, so that the pilot valve opens the throttle orifice or adjusting The aperture of the throttle orifice.

2. solenoid valve according to claim 1, which is characterized in that the pilot valve include sequentially connected occlusion part, Interconnecting part and support division, the occlusion part is for blocking completely, partial occlusion or fully opening the throttle orifice, the connection The diameter in portion is less than the diameter of the occlusion part, has gap between the interconnecting part and the inner wall of the spring base, described to support Portion is held for driving the occlusion part movement to pass through the interconnecting part in the impetus by the mandril.

3. solenoid valve according to claim 2, which is characterized in that the solenoid valve further includes second spring, and described second The both ends of spring are held in respectively between the spring base and the support division, and the mandril is used to reduce when coil electrical current When, it is moved along far from the direction of the pilot valve, and the support division is under the resilient force of the second spring, institute It states interconnecting part and drives the occlusion part, so that the aperture that the occlusion part opens the throttle orifice reduces.

4. solenoid valve according to claim 2, which is characterized in that the mandril is used to increase when the coil electrical current When, the support division is further pushed, so that the aperture that the occlusion part opens the throttle orifice increases.

5. solenoid valve according to claim 1, which is characterized in that the valve body includes shell, valve pocket and valve seat, the line Ring support is protruded into the shell by one end of the shell and is connect with the shell, and the valve pocket is installed on the another of the shell End, the valve seat are installed on the valve pocket, and the fluid inlet is set on the valve seat, and the fluid outlet is set to described On valve pocket, the main valve plug, first spring, the spring base and the pilot valve are all set in the valve pocket.

6. solenoid valve according to claim 5, which is characterized in that the solenoid valve further includes bolster and third spring, Buffer channel, the connects with the internal cavities of the buffer channel and the spring base are provided in the valve pocket, the bolster is set It is placed in one end exit of the buffer channel, one end of the third spring is held in the inner wall of the shell, and the other end supports It is held in the bolster.

7. solenoid valve according to claim 1, which is characterized in that the solenoid valve further includes the first guidance set, described First guidance set includes the first guide sleeve, block and guide sleeve, and the guide sleeve is sheathed on the mandril close to the pilot valve One end outside, the block is sheathed on outside the guide sleeve, and first guide sleeve is sheathed on outside the block, it is described first guiding Set is installed in the shell and the coil holder.

8. solenoid valve according to claim 1, which is characterized in that the solenoid valve further includes the second guidance set, described Second guidance set includes the second guide sleeve and axle sleeve, and the axle sleeve is sheathed on the one end of the mandril far from the pilot valve Outside, second guide sleeve is sheathed on outside the axle sleeve, and second guide sleeve is installed in the coil holder.

9. solenoid valve according to claim 1, which is characterized in that the solenoid valve further includes magnetic shield, the magnetic shield It is set between the iron core and the coil.

10. solenoid valve according to claim 1, which is characterized in that be provided with intercommunicating pore, the fluid on the main valve plug Import is connected to by the intercommunicating pore with the inside of the valve body.