CN217713831U

CN217713831U - Electromagnetic valve with compact structure

Info

Publication number: CN217713831U
Application number: CN202221054622.9U
Authority: CN
Inventors: 罗纲
Original assignee: Eger Fluid Technology Zhejiang Co ltd
Current assignee: Eger Fluid Technology Zhejiang Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-01
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a solenoid valve with compact structure, include: the main valve part is provided with a valve body, a magnetic conduction pipe, a fixed core and a coil, wherein the magnetic conduction pipe is arranged between the valve body and the fixed core and used for connecting the valve body and the fixed core, the coil is arranged around the fixed core and the whole body of part of the magnetic conduction pipe, and a flow passage for medium to flow is arranged in the valve body; the control part is provided with a pilot valve core, an elastic part, a movable core and a composite valve core which are coaxially arranged, the movable core and the composite valve core are sequentially sleeved inside the magnetic conduction pipe and can axially move along the magnetic conduction pipe, the pilot valve core is arranged in the movable core and can axially move along the movable core, the elastic part is arranged between the movable core and the fixed core, the elastic part provides pressure to press the pilot valve core on the composite valve core, so that the composite valve core is pressed in the valve body, and the composite valve core is used for controlling the opening and closing of a flow channel. The utility model discloses overall structure is succinct and compact, improves installation result of use.

Description

Electromagnetic valve with compact structure

Technical Field

The utility model belongs to the technical field of the solenoid valve technique and specifically relates to a solenoid valve with compact structure is related to.

Background

The pilot type high-pressure electromagnetic valve is a valve which is very wide in application and mature in structure, a main valve is arranged in the middle of the existing pilot type high-pressure electromagnetic valve, pilot valves are offset and independent from each other, and in addition, a main valve core, a main valve clack and a pilot valve clack are also independently arranged, so that the requirement on space is high, the integral structure is complex and the size is large, and the installation and the transportation are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides an avoid the weak point that prior art exists, provide a solenoid valve with compact structure from this.

The utility model provides a technical problem adopt following technical scheme: a solenoid valve having a compact structure, comprising:

the main valve part is provided with a valve body, a magnetic conduction pipe, a fixed core and a coil, wherein the magnetic conduction pipe is arranged between the valve body and the fixed core and used for connecting the valve body and the fixed core, the coil is arranged around the fixed core and the whole body of part of the magnetic conduction pipe, and a flow passage for medium to flow is arranged in the valve body;

the control part is provided with a pilot valve core, an elastic part, a movable core and a composite valve core which are coaxially arranged, the movable core and the composite valve core are sequentially sleeved inside the magnetic conduction pipe and can axially move along the magnetic conduction pipe, the pilot valve core is arranged in the movable core and can axially move along the movable core, the elastic part is arranged between the movable core and the fixed core, the elastic part provides pressure to press the pilot valve core on the composite valve core, the composite valve core is pressed in the valve body, and the composite valve core is used for controlling the opening and closing of a flow channel.

In several embodiments, the pilot valve core has a main body portion and a head portion, the main body portion penetrates through the moving core and cannot penetrate out of the moving core when moving to one side of the compound valve core, and the head portion penetrates out of the moving core and the compound valve core is matched.

In several embodiments, the resilient member is disposed between the stationary core and the main body portion.

In several embodiments, the composite spool has an opening along its axis, the opening includes a first bore and a second bore, the first bore has an inner diameter smaller than the inner diameter of the second bore, and the pilot spool is pressed against one side of the first bore to close the first bore.

In several embodiments, the second hole is in communication with the flow channel.

In several embodiments, a guide ring is embedded outside the composite valve core, and the guide ring is in contact with the inner wall of the magnetic conduction pipe.

In several embodiments, the magnetic conduction pipe is detachably connected with the valve body.

The utility model discloses following beneficial effect has:

the utility model discloses close a plurality of functional unit as an organic whole, and concatenate the setting with pilot valve and main valve on same main shaft line, realize that overall structure is succinct and compact, improve installation result of use.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and should not be considered as limiting the scope of the present disclosure.

Fig. 1 schematically shows a structure in which a solenoid valve having a compact structure in the present embodiment is in a closed state;

figure 2 schematically illustrates the explosive structure of figure 1;

FIG. 3 schematically shows an enlarged structure of part A of FIG. 1;

fig. 4 schematically shows the structure of fig. 1 in the open state.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, embodiments of the present invention are described in detail below, and the embodiments of the present invention are described in detail below clearly and completely.

The terminology used herein is for the purpose of explaining the embodiments and is not intended to limit and/or define the invention.

For example, expressions such as "in a certain direction", "along a certain direction", "axial direction", "orthogonal", "axial line", "relative", "front-back-left-right" and the like indicate relative or absolute arrangements, and indicate not only such arrangements in a strict sense but also a state of being relatively displaced with a tolerance or an angle or a distance to the extent that the same function can be obtained.

As shown in fig. 1-2, the solenoid valve includes a main valve portion for allowing a medium to flow therethrough, the main valve portion including a valve body 1, a magnetic conductive pipe 2, a stationary core 3, and a coil 4, and a control portion including a pilot valve element 6, an elastic member 7, a movable core 5, and a composite valve element 8.

Specifically, a flow channel for medium to flow is formed in the valve body 1, the flow channel is composed of a first portion 101, a second portion 102, a third portion 103 and a fourth portion 104 which are sequentially communicated with each other, the flow channel generally represents the flow direction of the medium in the valve body 1, the first portion 101 and the fourth portion 104 are arranged along the axis of the valve body 1 and are respectively used as an inlet section and an outlet section of the medium, the second portion 102 is arranged along the radial direction of the valve body 1 and is coaxially arranged with the control part, and a main valve flap d is formed at a contact part of the second portion 102 and the control part, so that whether the flow channel is opened or closed is realized, and the third portion 103 is used for communicating the second portion 102 and the fourth portion 104.

Correspondingly, the magnetic conduction pipe 2 is arranged between the valve body 1 and the fixed core 3 and used for connecting the valve body 1 and the fixed core 3, the magnetic conduction pipe 2 is detachably connected with the valve body 1 through a thread structure, the corresponding coil 4 is arranged around the fixed core 3 and the periphery of part of the magnetic conduction pipe 2, and the coil 4 provides an electromagnetic field for the electromagnetic valve when being electrified.

And, four parts in the control part, pilot valve core 6, elastic component 7, move core 5 and composite valve core 8 and arrange for the coaxial line, move core 5 and cup joint and can follow magnetic conduction pipe 2 inside and carry out axial motion at magnetic conduction pipe 2, move core 5 and press close to fixed core 3, inside moving core 5 is prolonged a step hole of having offered of its axis, pilot valve core 6 then corresponding insert set up move core 5 step downthehole and can follow and move core 5 and carry out axial motion, elastic component 7 inserts in moving core 5 equally, and its both ends respectively with pilot valve core 6, design 3 conflict is connected, elastic component 7 adopt compression spring can, provide the suppression power.

The pilot valve core 6 has a main body portion 61 and a head portion 62, the main body portion 61 penetrates into the movable core 5 and cannot penetrate out of the movable core 5 when moving to one side of the compound valve core 8, and the head portion 62 penetrates out of the movable core 5 and is matched with the compound valve core 8.

As shown in fig. 3, the composite valve core 8 extends into the valve body 1 and is matched with the position of the main valve flap d, the composite valve core 8 has an opening along the axis thereof, the opening includes a first hole body 81 and a second hole body 82, the inner diameter of the first hole body 81 is smaller than the inner diameter of the second hole body 82, the second hole body 82 faces the valve body 1 and is communicated with the second part 102, the first hole body 81 faces the pilot valve core 6 and is matched with the head 62 in a contact manner, here, the head 62 is processed into a spherical surface or a conical surface, the head 62 of the pilot valve core 6 is pressed at an orifice b of the first hole body 81 by a spring, and the orifice b is used as the pilot valve flap, so as to form effective sealing of the pilot valve.

And, the compound valve core 8 is also pressed at the flow passage in the valve body 1 by the pressure brought by the elastic element 7 and the pilot valve core 6, the lower end of the compound valve core 8 is processed into a spherical surface or a conical surface to become a main valve flap a, the main valve flap a is in contact fit with the second part 102 in the valve body 1, the contact part of the valve body 1 is processed into an inner conical surface to be a sealing surface d, the main valve flap a and the sealing surface d are attached tightly to form effective sealing of the main valve, and the complete closing of the valve is realized.

In addition, in order to facilitate the movement of the composite valve core 8, an annular groove is formed along the outer side and the whole body of the composite valve core 8, and a guide ring 9 is embedded in the groove and is in contact fit with the inner wall of the magnetic conduction pipe 2.

As shown in fig. 4, when the coil 4 is energized, the movable core 5 is attracted upward by the electromagnetic force and attached below the fixed core 3, and at the same time, the pilot valve core 6 is lifted by the movable core 5 and separated from the composite valve core 8, the orifice b of the composite valve core 8 is opened, the composite valve core 8 is lifted upward by the medium pressure difference and separated from the valve body 1, the second part 102 of the valve body 1 is opened, and the valve is completely opened.

Therefore, the main valve and the pilot valve are positioned on the central axis of the valve, and the main valve core, the main valve clack and the pilot valve clack are combined into a part, so that the whole structure is compact and concise, and the size of the whole is reduced.

The present invention has described preferred embodiments, including the best mode known to those of the present invention for carrying out the present invention. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The present invention contemplates that skilled artisans can employ such variations as appropriate, and the present invention teaches that the invention can be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications encompassed within the spirit and scope of the invention as defined by the claims. Moreover, unless stated otherwise or clearly contradicted by context, the present disclosure includes any and all possible variations of the above-described elements.

Claims

1. A solenoid valve having a compact structure, comprising:

2. The electromagnetic valve according to claim 1, wherein the pilot spool has a main body portion penetrating the movable core and unable to penetrate the movable core when moving to the side of the composite spool, and a head portion penetrating the movable core and engaged with the composite spool.

3. A solenoid valve having a compact configuration according to claim 2 wherein said resilient member is disposed between the stationary core and the main body portion.

4. The electromagnetic valve with a compact structure as claimed in claim 2, wherein the compound valve core has an opening along its axis, the opening comprises a first hole body and a second hole body, the inner diameter of the first hole body is smaller than that of the second hole body, and the pilot valve core is pressed on one side of the first hole body to close the first hole body.

5. The electromagnetic valve with a compact structure as claimed in claim 4, wherein the second hole body is communicated with the flow passage.

6. The electromagnetic valve with the compact structure as claimed in claim 1, wherein a guide ring is embedded outside the composite valve core, and the guide ring is in contact with the inner wall of the magnetic conduction pipe.

7. The electromagnetic valve with the compact structure as claimed in claim 1, wherein the magnetic conduction pipe is detachably connected with the valve body.