CN208364910U - Solenoid valve - Google Patents

Abstract

The utility model discloses a kind of solenoid valves, its drip irrigation device includes valve body, the side of the valve body is provided with inlet port, outflux and connection inlet port and outflux are connected to chamber, it further include wearing sliding in the core assembly for being used to close or open connection chamber in valve body, it is set to and drives spring and connecting spring plug far from core assembly side of the core assembly to one side slip of closed communication chamber in valve body, connection core assembly and extraneous blow vent are offered on the plug, the utility model has in the environment of high temperature and humidity, the effect used can be stablized.

Description

Solenoid valve

Technical field

The utility model relates to a kind of solenoid valves.

Background technique

Currently, it includes: shell that the Chinese patent that notification number is CN204756101U, which discloses a kind of solenoid valve, shell includes valve Head and valve body, wherein valve body is equipped with accommodating chamber；Static iron core and dynamic iron core, static iron core are fixed in accommodating chamber, and dynamic iron core can live It is located in accommodating chamber dynamicly, matable assembly is equipped between dynamic iron core and static iron core；Coil, coil are located on the periphery wall of valve body and use It is moved with generating electromagnetism power drive dynamic iron core along the axial direction of accommodating chamber；Separator, separator are located at static iron core and dynamic iron core At opposing end surface so that static iron core and dynamic iron core each other time of closest approach every preset distance L.

It is similar to above-mentioned solenoid valve in the prior art, in the environment of high temperature and humidity, the pressure at dynamic iron core both ends can It can change, so that draught head may be generated during dynamic iron core band moving valve plate is shunk, lead to electromagnetic coil and move Linkage process is likely to occur obstruction between iron core, influences the normal use of solenoid valve.

Utility model content

In view of the deficienciess of the prior art, the advantage is that the purpose of this utility model is to provide a kind of solenoid valve It, being capable of normal use in the environment of high temperature and humidity.

To achieve the above object, the utility model provides following technical solution: a kind of solenoid valve, including valve body, described Valve body includes valve seat and the valve deck that is removably connected on valve seat, is provided with inlet port, outflux and company on the valve deck Logical inlet port is connected to chamber with outflux, further includes wearing sliding in the spool group for being used to close or open connection chamber in valve seat Part and it is set to the spring for driving core assembly to one side slip of closed communication chamber in valve seat, is provided with communicating valve on the valve seat Core assembly and extraneous blow vent.

By using above-mentioned technical proposal, one end of core assembly is connection chamber, and the other end is valve seat.When solenoid valve is used for Such as coffee machine, valve body for a long time be in the state of high temperature and humidity, at this time if core assembly formed towards plug side it is close Space is closed, then the gas in confined space expands at high temperature, and air pressure is caused to rise.And it is magnetic by being generated in valve body at this time Core assembly sliding is driven to open connection chamber, then the active force that core assembly is subject to will be greater than normal condition, thus to valve is caused The sliding of core assembly is hindered, even can be stuck in the state of even more serious.And by opening up blow vent on valve seat, so that Core assembly can not form confined space towards valve seat side, and air pressure and extraneous holding balance.Therefore just at last in high temperature height Under wet environment, the normal use of solenoid valve is also ensured.

The utility model is further arranged to: the valve seat includes being built-in with the outer housing of accommodating chamber and being set to shell In vivo and plug of the connecting spring far from core assembly side, the blow vent include the central permeable opened up along plug axis Hole.

By using above-mentioned technical proposal, the structure that central permeable hole makes plug form tubulose is set, is guaranteeing to breathe freely While also ensure the intensity of plug itself.

The utility model is further arranged to: the valve seat includes being built-in with the outer housing of accommodating chamber and being placed in accommodating Intracavitary skeleton, ventilating groove is installed on the skeleton, and the ventilating groove generates the gap for constituting blow vent.

By using above-mentioned technical proposal, ventilating groove is opened up on skeleton, it can be in the feelings for not reducing skeleton integral strength Under condition, the ventilation to valve seat internal valve core assembly is realized.

The utility model is further arranged to: the outer housing offers socket, the plug packet towards the side of plug Include the main body for being connected to valve interior wall and mating in the plug division in socket.

By using above-mentioned technical proposal, plug division is plugged in socket, can limit the radial slippage of plug；And main body It is connected on valve interior wall, keeps the stabilization of plug axial position.To sum up realize the stabilization of plug.

The utility model is further arranged to: the core assembly includes movable valve plug and is sheathed on movable valve plug towards valve deck The radially inner side of the valve block of one end, the valve seat and valve deck junction is formed with the annular snap for being clamped valve block radial outside Slot.

By using above-mentioned technical proposal, it is connected in annular slot on the outside of valve block, during movable valve plug sliding, Guarantee that valve block can effectively separate the medium and movable valve plug come in from outside.Promote the service life of movable valve plug.

The utility model is further arranged to: the valve block includes the clamping portion for being set to radially inner side and being clamped for movable valve plug And it is integrally connected to the sealing on the outside of clamping portion, the side of the sealing towards valve deck is bent to form the deformation of annular Slot.

By using above-mentioned technical proposal, valve block is fitted by sealing and movable valve plug, guarantees that movable valve plug can be stablized Band moving valve plate acts；And deformation slot is opened up on sealing, deformation slot makes sealing have certain deformation surplus.To subtract Small movable valve plug slides the influence to valve block.

The utility model is further arranged to: the sealing is provided in the radial outside of the deformation slot towards valve seat Variable slot.

By using above-mentioned technical proposal, variable slot and deformation slot cooperation, improve sealing can deformation quantity, further It reduces movable valve plug and slides the influence generated to valve block.

The utility model is further arranged to: the radial outside of the sealing is provided with annular flange.

By using above-mentioned technical proposal, annular flange improves the close journey connected between sealing and annular slot Degree；Guarantee after prolonged use, valve block is able to maintain position and stablizes.

The utility model is further arranged to: the clamping portion is provided with towards the side of movable valve plug for movable valve plug clamping T-slot, and the T-slot is parallel to the side wall composition sealing of sealing side to wall, the sealing supports the wall thickness of wall as sealing 2 to 3 times of portion's wall thickness.

By using above-mentioned technical proposal, T-slot can guarantee to stablize clamping between movable valve plug and valve block.And by adding The wall thickness of wall is supported in thickness sealing；So that wall is supported in sealing, just deformation occurs in the state of high temperature and humidity at last, also being capable of side holding pair Be connected to chamber stablizes barrier.

The utility model is further arranged to: the parallel valve axis of the inlet port is set on valve deck, the outflux It is set to the side of valve deck vertically into mouth, the inlet port is towards being extended with barrier rib, the resistance on the side wall of outflux side The thickness that next door and inlet port side wall are overlapped is at least the 1/4 of inlet port sidewall thickness.

By using above-mentioned technical proposal, the thickness that 1/4 barrier rib and inlet port side wall are overlapped can guarantee group next door Structural strength.The intensity in promotion group next door, guarantee group next door service life.

In conclusion the utility model has the advantage that

1, blow vent is opened up on plug, movable valve plug is avoided to lead to not be attracted and open to move because internal structure forms vacuum Make；

2, it is connected in annular slot on the outside of valve block, during movable valve plug sliding, guarantees that valve block can be effective Separate the medium and movable valve plug come in from outside；

3, deformation slot is opened up on sealing, deformation slot makes sealing have certain deformation surplus, reduces movable valve plug Slide the influence to valve block.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of embodiment 1；

Fig. 2 is the configuration schematic diagram of embodiment 1；

Fig. 3 is the schematic cross-sectional view of 1 middle valve plate of embodiment；

Fig. 4 is the schematic cross-sectional view of 2 middle valve plate of embodiment；

Fig. 5 is the schematic cross-sectional view of embodiment 3；

Fig. 6 is the structural schematic diagram of 3 middle skeleton of embodiment.

Description of symbols: 1, valve body；2, core assembly；3, inlet port；4, outflux；5, it is connected to chamber；6, valve seat；7, valve Lid；8, barrier rib；9, outer housing；10, interior iron plate；11, skeleton；12, outer iron plate；13, through-hole；14, coil；15, PIN needle；16, Barrier flaps；17, it is clamped plane；18, movable valve plug；19, valve block；20, spring；21, plug；22, plug division；23, main body；24, it inserts Mouthful；25, accommodation groove；26, blow vent；27, clamping portion；28, sealing；29, T-slot；30, T shape portion；31, deformation slot；32, ring Shape flange；33, wall is supported in sealing；34, variable slot；35, connecting card；36, annular slot；37, ventilating groove；38, axial groove；39, Annular groove；40, radial slot.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment 1, a kind of solenoid valve can be applied to water, in gas two media；And there is good high temperature resistant energy Power can guarantee the steady operation of solenoid valve entirety in the state of being chronically at hot conditions.

Specifically, as shown in Figure 1, solenoid valve includes valve body 1 and wears sliding in the core assembly 2 in valve body 1.Valve body 1 Include the inlet port 3 flowed into for medium, for the outflux 4 of medium outflow be connected to chamber 5 be connected to inlet port 3 and outflux 4. Core assembly 2 is by sliding closing or opens connection chamber 5, realizes the connection and barrier between inlet port 3 and outflux 4.

As shown in Figure 1, valve body 1 includes valve seat 6 and the valve deck 7 being removably connected on valve seat 6.Specifically, inlet port 3 is flat 1 axis of row valve body is set on valve deck 7, and outflux 4 is set to the side of valve deck 7 vertically into mouth 3.And inlet port 3 is towards stream It exports and is extended with barrier rib 8 on 4 side side walls.The thickness that the side wall of barrier rib 8 and inlet port 3 is overlapped is at least 3 side of inlet port The 1/4 of wall thickness；Specifically, the value range for being overlapped wall thickness can be 0.15 between 0.4mm.Valve deck 7 is towards 6 side of valve seat Fluted, groove connection inlet port 3 and outflux 4 are opened up, is constituted after valve seat 6 and valve deck 7 connect and is connected to chamber 5.

As shown in Figure 1, 2, valve seat 6 includes being built-in with the outer housing 9 of accommodating chamber and being sequentially placed in accommodating chamber Iron plate 10, skeleton 11 and outer iron plate 12.The section of skeleton 11 is substantially I-shaped, and offers through-hole 13 vertically.Skeleton It is arranged with coil 14 outside 11, and the radially opposite sides of inward-facing 10 1 side end face of iron plate of skeleton 11 are fixedly connected with for electric connection line The PIN needle 15 of circle 14.Interior iron plate 10 and outer iron plate 12 have the function of that encapsulated coil 14 generates magnetic field, are being powered in coil 14 Afterwards, the leakage of magnetic flux is reduced.

As shown in Figure 1, 2, PIN needle 15 sequentially passes through interior iron plate 10 and extend out to 9 outside of outer housing.Further, in order to anti- Only PIN needle 15 and interior iron plate 10 generate electrical contact；Interior iron plate 10 opened up towards the two sides of PIN needle 15 it is fluted, skeleton 11 towards The end face of interior 10 side of iron plate is extended with the barrier flaps 16 obstructed between PIN needle 15 and interior iron plate 10.

Further, as shown in Figure 1, 2, outer iron plate 12 and the radial direction on the end face of 12 side of iron plate is faced out with skeleton 11 Formation clamping plane 17 is cut in two sides, is clamped the gap formed between plane 17 and the outer wall of outer housing 9 and constitutes connection card slot； Valve deck 7 is extended with towards the side of valve seat 6 for being clamped to the connecting card 35 for connecting card slot.When valve deck 7 passes through connecting card After the 35 connection card slots for being caught in valve seat 6 are fixed, the radially inner side of 7 junction of outer iron plate 12 and valve deck, which will have, is formed with annular snap The gap of slot 36.

As shown in Figure 1, 2, core assembly 2 including movable valve plug 18 and is sheathed on valve of the movable valve plug 18 towards 7 one end of valve deck Piece 19.The sliding of movable valve plug 18 is in the through-hole 13 at 11 middle part of skeleton；The material of valve block 19 is silica gel or rubber, and 19 diameter of valve block It is clamped to annular slot 36 outward.During movable valve plug 18 slides, since the radial outside of valve block 19 will be stablized admittedly It is scheduled in annular slot 36, the stable medium that outside is come in and movable valve plug 18 separate.

Specifically, as shown in Figure 1, 2, also successively being set in the through-hole 13 of skeleton 11 in the one end of movable valve plug 18 far from valve block 19 It is equipped with spring 20 and plug 21.Plug 21 is including main body 23 and is integrally connected to plug division of the main body 23 far from 20 side of spring 22, the outer diameter of plug division 22 is less than main body 23；It is offered on the bottom wall of outer housing 9 and interior iron plate 10 mating for plug division 22 Socket 24；Plug 21 is clamped by the way that plug division 22 to be inserted into socket 24 with 9 phase of outer housing, keeps the steady of 21 position of plug It is fixed.Movable valve plug 18 offers the accommodation groove 25 being inserted into for spring 20 towards the side of spring 20；Accommodating is inserted into one end of spring 20 In slot 25, the other end is connected on plug 21, is had and is driven movable valve plug 18 to the elasticity of 7 one end motion of valve deck.Therefore in electromagnetism Under valve off-position, movable valve plug 18 under the driving of 20 elastic force of spring to 7 one side slip of valve deck so that valve block 19 enters in connection In chamber 5, realize to the barrier between inlet port 3 and outflux 4；And in the state of solenoid valves, coil 14 obtains electric generation Magnetism, movable valve plug 18 are realized under the action of 14 magnetism of coil to 21 1 side slip of plug so that valve block 19 is separate to be connected to chamber 5 Connection between inlet port 3 and outflux 4.

Further, as shown in Figure 1, 2, in order to prevent core assembly 2 towards 21 side of plug formed confined space.Plug Connection core assembly 2 and extraneous blow vent 26 are offered on 21.Specifically, blow vent 26 can be to open up along 21 axis of plug Central permeable hole, or can be several eccentric air holes for being opened up along 21 eccentric direction of plug, it might even be possible to centered on thoroughly The mode that stomata and eccentric air hole combine.In the present embodiment, blow vent 26 is by the way of central permeable hole.

As shown in Figure 2,3, valve block 19 includes being set to clamping portion 27 that radially inner side be clamped for movable valve plug 18 and integrated It is connected to the sealing 28 in 27 outside of clamping portion.Clamping portion 27 is provided with T-slot 29, movable valve plug 18 towards the side of movable valve plug 18 On be connected with the T shape portion 30 for being matched with T-slot 29.The side of sealing 28 towards valve deck 7 is bent to form the shape of annular Become slot 31, since the wall thickness of deformation slot 31 is slightly thinner than 28 entirety of sealing, in movable valve plug 18 when band moving valve plate 19 acts, Deformation slot 31 makes sealing 28 have certain deformation surplus, reduces influence of the sliding of movable valve plug 18 to valve block 19.In addition, Radial outside is provided with annular flange 32 to 7 side of valve deck.Annular flange 32 improves between sealing 28 and annular slot 36 The tightness degree of connection；Guarantee after prolonged use, valve block 19 is able to maintain position and stablizes.

Further, as shown in figure 3, the side wall that T-slot 29 is parallel to 28 side of sealing, which constitutes sealing, supports wall 33, sealing Wall thickness to wall 33 is 2 to 3 times of 28 wall thickness of sealing.The wall thickness of the present embodiment sealing 28 is between 0.3-1.0mm.

To sum up, under solenoid valve off-position, movable valve plug 18 seals under the driving of 20 elastic force of spring supports wall 33 into company Cavity 5 obstructs inlet port 3 and outflux 4.Even if at this time for a long time in the state of high temperature and humidity, since wall 33 is supported in sealing Thicken so that sealing support wall 33 just deformation occurs at last, also can side keep to connection chamber 5 stablize obstruct, ensure that electromagnetism Adaptability of the valve to the condition of high temperature.

Embodiment 2, as shown in figure 4, difference from Example 1 is the structure of valve block 19, the sealing 28 of valve block 19 The variable slot 34 towards valve seat 6 is additionally provided in the radial outside of deformation slot 31.Variable slot 34 and deformation slot 31 cooperate, and improve Sealing 28 can deformation quantity, further reduce movable valve plug 18 and slide the influence that generates to valve block 19.

Embodiment 3, as shown in Figure 5,6, difference from Example 1 are to offer ventilating groove 37 on skeleton 11, breathe freely Slot 37 generates gap in outer housing 9, constitutes blow vent 26.

As shown in Figure 5,6, ventilating groove 37 include be set to through-hole 13 towards on 21 side inner wall of plug axial groove 38, set The annular groove 39 that is placed in the inward-facing 10 1 side end face inner circle of iron plate of skeleton 11 and it is set to the inward-facing iron plate 10 1 of skeleton 11 Side end face and the radial slot 40 being disposed radially；The quantity of axial groove 38 is four, and four axial grooves 38 are along 13 inner wall of through-hole It is uniformly distributed；The inner ring of annular groove 39 is connected to axial groove 38, and outer ring is connected to radial slot 40；The quantity of radial slot 40 is also four, Four radial slots 40 are uniformly distributed along 11 end face of skeleton.Further, between four radial slots 40 and four axial grooves 38 It is staggered between circumferential angle.

Therefore ventilating groove 37 to generate the gap for constituting blow vent 26 between skeleton 11, plug 21 and interior iron plate 10, makes Chamber between plug 21 and movable valve plug 18 by gap between 10 upper groove of blow vent 26 and PIN needle 15 and interior iron plate with Outside connection.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel design concept, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model Within the scope of.

Claims (10)

1. a kind of solenoid valve, including valve body (1), the valve body (1) includes valve seat (6) and is removably connected on valve seat (6) Valve deck (7), inlet port (3), outflux (4) and connection inlet port (3) and outflux (4) are provided on the valve deck (7) Connection chamber (5), it is characterised in that: further include wearing sliding in the valve seat (6) for closing or opening the valve of connection chamber (5) It core assembly (2) and is set in valve seat (6) and drives core assembly (2) to the spring (20) of (5) one side slip of closed communication chamber, institute It states and is provided with connection core assembly (2) and extraneous blow vent (26) on valve seat (6).

2. solenoid valve according to claim 1, it is characterised in that: the valve seat (6) includes the shell for being built-in with accommodating chamber It body (9) and is set in outer housing (9) and plug (21) of the connecting spring (20) far from core assembly (2) side, it is described logical Port (26) includes along the central permeable hole that plug (21) axis opens up.

3. solenoid valve according to claim 1, it is characterised in that: the valve seat (6) includes the shell for being built-in with accommodating chamber Body (9) and the skeleton (11) being placed in accommodating cavity offer ventilating groove (37), the ventilating groove on the skeleton (11) (37) gap for constituting blow vent (26) is generated.

4. solenoid valve according to claim 2, it is characterised in that: the outer housing (9) is opened towards the side of plug (21) Equipped with socket (24), the plug (21) includes being connected to the main body (23) of valve body (1) inner wall and mating in socket (24) plug division (22) in.

5. solenoid valve according to claim 1, it is characterised in that: the core assembly (2) include movable valve plug (18) and It is sheathed on valve block (19) of the movable valve plug (18) towards valve deck (7) one end, the diameter of the valve seat (6) and valve deck (7) junction is inside Side is formed with the annular slot (36) for being clamped valve block (19) radial outside.

6. solenoid valve according to claim 5, it is characterised in that: the valve block (19) includes being set to radially inner side for dynamic The clamping portion (27) of spool (18) clamping and the sealing (28) being integrally connected on the outside of clamping portion (27), the sealing (28) the deformation slot (31) of annular is bent to form towards the side of valve deck (7).

7. solenoid valve according to claim 6, it is characterised in that: diameter of the sealing (28) in the deformation slot (31) It is provided with the variable slot (34) towards valve seat (6) outward.

8. solenoid valve according to claim 6, it is characterised in that: the radial outside of the sealing (28) is provided with annular Flange (32).

9. solenoid valve according to claim 6, it is characterised in that: the side of the clamping portion (27) towards movable valve plug (18) It is provided with the T-slot (29) for movable valve plug (18) clamping, and the T-slot (29) is parallel to the side wall structure of sealing (28) side Wall (33) are supported at sealing, wall thickness of the sealing to wall (33) is 2 to 3 times of sealing (28) wall thickness.

10. solenoid valve according to claim 5, it is characterised in that: parallel valve body (1) the axis setting of the inlet port (3) In on valve deck (7), the outflux (4) is set to the side of valve deck (7) vertically into mouth (3), and the inlet port (3) is towards stream It is extended with barrier rib (8) on outlet (4) side side wall, the thickness of the barrier rib (8) and the coincidence of inlet port (3) side wall is at least The 1/4 of inlet port (3) sidewall thickness.