CN204985938U - A solenoid valve for fluid flow control - Google Patents

Abstract

The utility model belongs to electromagnetic control fluid field relates to a solenoid valve for fluid flow control, including the valve body that has entry, export, the valve body is connected with core pipe assembly, is equipped with the plastic envelope assembly at core pipe assembly overcoat, core pipe assembly contains the core pipe, moves magnetic core and reset spring, and the upper end of core pipe is provided with the magnetostatic core, moves that the magnetic core lies in the core intraduct, the lower extreme is provided with the sealing plug that is used for sealed valve body export, and reset spring lies in and moves the inside spring slot of magnetic core, and its upper end contacts with the magnetostatic core to be connected, the utility model is used for the two for two's of engine oilway control solenoid valve, simple structure is through the electric break -make that realizes the oil circuit of the break -make of coil, a strike, long service life that is used for the two for two's of engine oilway control solenoid valve sealed through the toper, sealed effectual, and can bear the solenoid valve and open and shut repeatedly .

Description

A kind of solenoid valve controlled for fluid flowing

Technical field:

The utility model belongs to Electromagnetic Control fluid applications, relates to a kind of solenoid valve for controlling fluid flowing.

Background technique:

Solenoid valve is widely used in the control of engine oil path system, particularly the oil circuit of engine brake controls, usually valve body, spool and Electromagnetic Control mechanism is comprised from solenoid valve known in the state of the art, Electromagnetic Control mechanism carrys out the folding of Controlling solenoid valve by controlling the axial motion of spool in valve body, be communicated with the fluid between the entrance and exit setting up solenoid valve.Solenoid valve, as the control unit of precision, needs to be swift in motion reliably, has higher requirements to the turbidity test of the fluid by solenoid valve, and disclosed electromagnetic valve entrance place does not control effectively to the fluid cleanliness entering solenoid valve at present.Solenoid valve is as the element controlling fluid on-off in addition, has strict requirement to sealing effect and durability, and the disclosed multiplex steel ball sealing of solenoid valve for engine braking, exists the defect of sealing effect difference at present.

Summary of the invention:

It is simple that the purpose of this utility model is to provide a kind of structure, and reliable in action is easy to assembly, good seal performance, the solenoid valve controlled for fluid flowing of long service life.

The utility model is achieved in that

For the solenoid valve that fluid flowing controls, comprise the valve body with entrance, outlet, valve body is connected with core pipe assembly, is set with plastic packaging assembly outside core pipe assembly; Described core pipe assembly comprises core pipe, dynamic magnetic core and Returnning spring, the upper end of core pipe is provided with magnetostatic core, dynamic magnetic core is positioned at core pipe inside, lower end is provided with the sealing plug exported for sealed valve body, and Returnning spring is positioned at the spring slot of dynamic magnetic core inside, and its upper end contacts with magnetostatic core and connects.

In technique scheme, described valve body is provided with the entrance of at least one axial distribution and outlet axially arranged, the radial outlet passage arranged, outlet is communicated with outlet passage, described entrance, exports and can exchange according to actual conditions; Described ingress arranges filtrating equipment, and filtrating equipment is effectively fixing.

In technique scheme, the degree of depth of described spring slot directly runs through whole dynamic magnetic core and is connected with lower seal plug, or the degree of depth does not run through whole dynamic magnetic core only extension core body length.

In technique scheme, described plastic packaging assembly includes plastic package sleeve, electromagnetic coil, upper and lower magnetic guiding cycle, and upper magnetic guiding cycle is sleeved on outside magnetostatic core, and between upper and lower magnetic guiding cycle, be provided with electromagnetic coil, electromagnetic coil is connected with external circuitry by wiring terminal.

In technique scheme, outside the core pipe assembly of the top of described lower magnetic guiding cycle, be set with the sleeve for increasing intensity.

In technique scheme, one end of described magnetostatic core is stretched out outside plastic packaging assembly, is fixed by nut.

In technique scheme, between described nut and plastic packaging assembly, be provided with pad.

In technique scheme, there is gap L in described dynamic magnetic core and magnetostatic core, this gap is compensated because dynamic magnetic core moves under powered open state, recovers when power-off is closed.

In technique scheme, described dynamic magnetic core offers the connect hole crossing with spring slot, make magnetic core when moving, the medium in spring slot and external communication, for the oil pressure pressure of balanced dynamic magnetic core inside.

In technique scheme, described sealing plug and dynamic magnetic core are split-type structural, and the lower end of dynamic magnetic core is provided with cavity, and one end and the cavity of sealing plug are connected, entrance in the other end sealed valve body or outlet;

Or the lower end of dynamic magnetic core is provided with guide head, be set with O type circle outward at guide head, the entrance in O type circle sealed valve body or outlet.

The advantage that the utility model is given prominence to compared to existing technology is:

1, the utility model is used for the solenoid valve of the 2/2-way that engine oil path controls, and structure is simple, is realized the break-make of oil circuit by the power on/off of coil;

2. the utility model is used for the solenoid valve of the 2/2-way that engine oil path controls by cone seal, good sealing effect, can bear the impact of solenoid valve folding repeatedly, long service life;

3. the utility model arranges filtrating equipment for the electromagnetic valve entrance place of the 2/2-way of engine oil path control, ensure that the turbidity test of the pressure oil entering solenoid valve, and then ensure that reliability and the sensitivity of solenoid valve action.

Accompanying drawing illustrates:

Fig. 1 is the longitudinal sectional drawing of a preferred embodiment of the present utility model.

Fig. 2 is the plan view of valve body.

Fig. 3 is the A-A sectional drawing of Fig. 2.

Fig. 4 is one of sealing means of the utility model spool and valve seat.

Fig. 5 is the sealing means two of the utility model spool and valve seat.

Fig. 6 is the sealing means three of the utility model spool and valve seat.

Fig. 7 is the cross-sectional view of the guide head of Fig. 6.

Fig. 8 is the sealing means four of the utility model spool and valve seat.

Fig. 9 is the entity of spring slot of the present utility model and drainback passage conducting.

In figure: 1-valve body, 2-entrance, 3-exports, 4-filtrating equipment, 5-core pipe assembly, 6-envelope moulds assembly, 7-core pipe, and 8-moves magnetic core, 9-Returnning spring, the magnetostatic core of 10-, 11-sealing plug, 12-electromagnetic coil, 13-wiring terminal, 14-pad, 15-nut, the upper magnetic guiding cycle of 16-, 17-sleeve, 18-O type circle, 19-outlet passage, 20-drainback passage, 21-O type circle, 22-slot, 23-goes out oil groove, magnetic guiding cycle under 24-, 25-plastic package sleeve, 26-guide head, 27-O type circle, 28-boss, 29-pressure ring.

Embodiment:

With specific embodiment, the utility model is further described below, see Fig. 1-9:

For controlling a solenoid valve for fluid flowing, comprise valve body 1, core pipe assembly 5, plastic packaging assembly 6.Valve body core pipe assembly 5 and valve body 1 are threaded connection, and interference also can be used to connect and other modes.

Core pipe assembly 5 comprises core pipe 7, the dynamic magnetic core 8 be arranged in core pipe 7, magnetostatic core 10 and Returnning spring 9, and magnetostatic core 10 adopts with the upper end of core pipe 7 and welds, and also can adopt close-fitting connection etc.Dynamic magnetic core 8 is positioned at core pipe 7 inside, there is the sealing plug 11 arranged for sealing outlet 3 lower end, Returnning spring 9 is positioned at the slot 22 of dynamic magnetic core 8 inside, the degree of depth of spring slot 22 directly runs through whole dynamic magnetic core 8 and is connected with lower seal plug 11, its degree of depth also can not run through whole dynamic magnetic core 8 and only extension core body length, depending on its variable depth of practical application, corresponding spring 9 length also changes thereupon.There is gap L in dynamic magnetic core 8 and magnetostatic core 10, this gap under solenoid valve opening state, dynamic magnetic core 8 is moved and compensated, and recovers during closed electromagnetic valve.

Plastic packaging assembly 6 comprises plastic package sleeve 25, electromagnetic coil 12, upper magnetic guiding cycle 16, lower magnetic guiding cycle 24, wiring terminal 13.In order to strengthen intensity, can arrange sleeve 17 again, sleeve 17 is positioned at the top of lower magnetic guiding cycle 24, is sleeved on outside core pipe 7, and upper magnetic guiding cycle 16, lower magnetic guiding cycle 24, sleeve 17 directly contact and be packaged as a whole with plastic package sleeve 25.

Electromagnetic coil 12 is connected with external circuitry by wiring terminal 13.

The magnetostatic core 10 of core pipe assembly 5 one end passes the center hole of the plastic packaging assembly 6 of Spielpassung with it, and is connected with the latter by pad 14, nut 15.

Valve body 1 comprises entrance 2, outlet 3 and filtrating equipment 4.Valve body 1 is provided with the entrance 2 of at least one axial distribution and outlet 3 axially arranged, the radial outlet passage 19 arranged, arrange filtrating equipment 4 at the entrance point of entrance 2, filtrating equipment 4 is fixed by pressure ring 29, exports 3 connection outlet passages 19.Filtrating equipment 4 adopts filter screen, filter net cloth etc.The O type circle 18 for sealing is set with outside valve body 1.

Dynamic magnetic core 8 end is provided with the sealing plug 11 for sealing outlet 3, and by being arranged on the sealing plug 11 of spool cavity inside: as shown in Figure 4, one end of sealing plug 11 is embedded in dynamic magnetic core 8, the other end shutoff valve outlet 3 of sealing plug 11.Again as shown in Figure 5, one end of dynamic magnetic core 8 is provided with cutting graftage part, and cutting graftage part is stretched in sealing plug 11, and shutoff valve outlet 3.Again as shown in Figure 6, one end of dynamic magnetic core 8 is provided with the guide head 26 stretching into valve outlet 3, and outside this guide head 26, be set with O RunddichtringO 27 for sealed valve body outlet 3, dynamic magnetic core 8 end guide head 26 can be provided with out oil groove 23, as shown in Figure 7.Also as shown in Figure 8, outlet 3 place of valve body 1 can be provided with boss 28, sealing plug 11 is embedded in dynamic magnetic core 8, and sealing plug 11 is pushed down boss 28 and realized shutoff outlet 3.Except above-mentioned form, the shutoff that other modes realize valve outlet 3 also can be taked.

Dynamic magnetic core 8 offers the through hole 20 crossing with spring slot 22, for the oil pressure pressure of balanced dynamic magnetic core 8 inside.

Outlet 3 of the present utility model can be exchanged with entrance 2.

Working principle of the present invention is as described below:

When electromagnetic coil 12 is energized, solenoid valve is in running order, magnetostatic core 10 is magnetized, under the effect of magnetostatic core 10 electromagnetic force, dynamic magnetic core 8 overcomes the elastic force of return spring 9 and self gravitation moves to dynamic magnetic core 8, magnetostatic core 10 adhesive of namely persuading magnetic core 8 to be magnetized, compensate dynamic stroke L between magnetic core 8 and magnetostatic core 10, and with sealing plug 11 away from outlet 3, outlet 3 is communicated with entrance 2, and medium can flow out from outlet 3 through outlet passage 19; When electromagnetic coil 12 power-off, electromagnetic force disappears, and dynamic magnetic core 8 moves under the elastic force and Action of Gravity Field of Returnning spring 9, drives sealing plug 11 to close outlet 3.

More employ valve body 1 herein, entrance 2, outlet 3, filtrating equipment 4, core pipe assembly 5, envelope moulds assembly 6, core pipe 7, dynamic magnetic core 8, Returnning spring 9, magnetostatic core 10, sealing plug 11, electromagnetic coil 12, wiring terminal 13, pad 14, nut 15, upper magnetic guiding cycle 16, sleeve 17, O type circle 18, outlet passage 19, drainback passage 20, O type circle 21, slot 22, goes out oil groove 23, term such as pressure ring 29 grade, but does not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.

Above-described embodiment is only one of preferred embodiment of the present utility model; not limit practical range of the present utility model with this; therefore: all equivalence changes done according to shape of the present utility model, structure, principle, all should be covered by within protection domain of the present utility model.

Claims (10)

1., for the solenoid valve that fluid flowing controls, it is characterized in that: comprise the valve body with entrance, outlet, valve body is connected with core pipe assembly, is set with plastic packaging assembly outside core pipe assembly; Described core pipe assembly comprises core pipe, dynamic magnetic core and Returnning spring, the upper end of core pipe is provided with magnetostatic core, dynamic magnetic core is positioned at core pipe inside, lower end is provided with the sealing plug exported for sealed valve body, and Returnning spring is positioned at the spring slot of dynamic magnetic core inside, and its upper end contacts with magnetostatic core and connects.

2. a kind of solenoid valve controlled for fluid flowing according to claim 1, it is characterized in that: described valve body is provided with the entrance of at least one axial distribution and outlet axially arranged, the radial outlet passage arranged, outlet is communicated with outlet passage, and described entrance, outlet can exchange according to actual conditions; Described ingress arranges filtrating equipment.

3. a kind of solenoid valve controlled for fluid flowing according to claim 1, it is characterized in that: the degree of depth of described spring slot directly runs through whole dynamic magnetic core and is connected with lower seal plug, or the degree of depth does not run through whole dynamic magnetic core only extension core body length.

4. a kind of solenoid valve controlled for fluid flowing according to claim 1, it is characterized in that: described plastic packaging assembly includes plastic package sleeve, electromagnetic coil, upper and lower magnetic guiding cycle, upper magnetic guiding cycle is sleeved on outside magnetostatic core, between upper and lower magnetic guiding cycle, be provided with electromagnetic coil, electromagnetic coil is connected with external circuitry by wiring terminal.

5. a kind of solenoid valve controlled for fluid flowing according to claim 4, is characterized in that: be set with the sleeve for increasing intensity outside the core pipe assembly of the top of described lower magnetic guiding cycle.

6. a kind of solenoid valve controlled for fluid flowing according to claim 4, is characterized in that: one end of described magnetostatic core is stretched out outside plastic packaging assembly, is fixed by nut.

7. a kind of solenoid valve controlled for fluid flowing according to claim 6, is characterized in that: be provided with pad between described nut and plastic packaging assembly.

8. a kind of solenoid valve controlled for fluid flowing according to claim 1, is characterized in that: described dynamic magnetic core and magnetostatic core exist gap L, and this gap is compensated because dynamic magnetic core moves under powered open state, recovers when power-off is closed.

9. a kind of solenoid valve controlled for fluid flowing according to claim 1 or 8, it is characterized in that: described dynamic magnetic core offers the connect hole crossing with spring slot, make magnetic core when moving, medium in spring slot and external communication, for the oil pressure pressure of balanced dynamic magnetic core inside.

10. a kind of solenoid valve controlled for fluid flowing according to claim 1, it is characterized in that: described sealing plug and dynamic magnetic core are split-type structural, the lower end of dynamic magnetic core is provided with cavity, one end and the cavity of sealing plug is connected, entrance in the other end sealed valve body or outlet;

Or the lower end of dynamic magnetic core is provided with guide head, be set with O type circle outward at guide head, the entrance in O type circle sealed valve body or outlet.