CN217713829U - Three-way electromagnetic valve - Google Patents

Abstract

The utility model discloses a three-way electromagnetic valve, including electromagnet assembly, combination diaphragm, valve body and packing ring, electromagnet assembly and valve body set up to the cylindricality structure, electromagnet assembly sets up the top at the valve body, the combination diaphragm sets up the junction at electromagnet assembly and valve body, the packing ring is connected with the combination diaphragm, packing ring and valve body connection set up, valve body and electromagnet assembly connect, valve body and electromagnet assembly constitute seal structure. The flow channel port is located on the side face of the electromagnet, so that the electromagnet has the advantages of high reliability and convenience in installation and maintenance, and meanwhile, the electromagnet has the characteristics of simple structure, low power consumption, long service life, less residual liquid in the inner cavity, convenience in installation and the like.

Description

Three-way electromagnetic valve

Technical Field

The utility model relates to a gas circuit control field specifically is a three-way solenoid valve.

Background

According to the current market development trend, various analytical instruments tend to be miniaturized and integrated. Metal solenoid valves used in various analyzers generally require corrosion resistance, high reliability, small dead volume in the inner cavity, low power consumption, convenience in equipment installation and maintenance, and the like.

The existing three-way electromagnetic valve has the defects of different degrees: the tail is located to the afterbody that the consumption is big, the life-span is short, the inner chamber is bulky, runner port lead to the installation to maintain inconvenient etc. is unfavorable for the instrument miniaturization and integrates, and the equipment maintenance cost is higher.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a three-way solenoid valve is located the electro-magnet side through the runner port, possesses the reliability height, the installation of being convenient for is maintained the advantage, simultaneously, has simple structure, the consumption is little, longe-lived, the inner chamber remains characteristics such as liquid is few, the installation of being convenient for.

The utility model discloses a realize through following technical scheme:

the utility model provides a three-way solenoid valve, includes electromagnet assembly, combination diaphragm, valve body and packing ring, electromagnet assembly and valve body set up to the cylindricality structure, electromagnet assembly sets up the top at the valve body, the combination diaphragm sets up the junction at electromagnet assembly and valve body, the packing ring is connected with the combination diaphragm, packing ring and valve body connection set up, valve body and electromagnet assembly connect, valve body and electromagnet assembly constitute seal structure.

Furthermore, a plurality of sealing rings are arranged between the valve body and the electromagnet assembly.

Further, the combined membrane is made of spring rubber.

Further, the flow passage port of the valve body is located on the side wall surface of the valve body.

Furthermore, the electromagnet assembly comprises an armature and an inner sleeve, and positioning and orientation structures are arranged on the armature and the inner sleeve.

Further, the valve body is connected with the electromagnet assembly through a screw.

Furthermore, the inner sleeve is connected by a pin.

Furthermore, the electromagnet assembly comprises a clamping cover, an armature, an electromagnet shell upper part and an electromagnet shell lower part; the clamping cover and the armature as well as the clamping cover and the electromagnet shell are connected by punching and riveting

Furthermore, the upper part of the electromagnet shell and the lower part of the electromagnet shell are in interference fit.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model has the advantages that the flow channel port of the valve body is positioned on the side wall surface of the valve body, so that the valve is more convenient to install and maintain and more beneficial to integrated use compared with the existing electromagnetic valve of the electromagnet flow channel; the direction included angle between the electromagnet and the valve body runner port is flexible and changeable.

Furthermore, the plate spring is processed and molded through a chemical corrosion mode through the combined diaphragm, and then rubber is inlaid on the plate spring through an injection molding mode, so that the combined diaphragm is obtained and is an elastic element and a sealing element.

Furthermore, the matching part of the armature is milled into a plane, and a boss matched with the armature is designed at the matching part of the inner sleeve. After assembly, the runner of the armature is aligned with the runner of the inner sleeve; the centering property, consistency and reliability of partial flow channels of the electromagnet are ensured.

Furthermore, after the parts are assembled and the screws are screwed down, the outer ring of the combined diaphragm can be tightly pressed by the electromagnet assembly and the valve body, and due to size difference, the inner ring of the combined diaphragm can be jacked up by the valve body, so that height difference exists between the inner ring and the outer ring of the combined diaphragm, elasticity is generated, and a P-end flow passage of the valve body is blocked.

Furthermore, an elliptical hole structure matched with the inner sleeve is designed at the matching part below the outer shell of the electromagnet. And after assembly, the inner sleeve runner is aligned with the runner below the electromagnet shell.

Furthermore, the clamping cover is connected with the armature and the clamping cover is connected with the electromagnet shell in a punching and riveting mode to assemble parts, so that the electromagnet is more compact in structure and smaller in size.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a three-way electromagnetic valve according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a valve body of a three-way electromagnetic valve provided in an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a three-way electromagnetic valve provided in an embodiment of the present invention;

fig. 4 is a cross-sectional view of the overall structure of a three-way solenoid valve provided in the embodiment of the present invention;

fig. 5 is a bottom view of a three-way solenoid valve provided in an embodiment of the present invention;

fig. 6 is a schematic view of a combined diaphragm of a three-way electromagnetic valve provided in an embodiment of the present invention;

fig. 7 is a schematic view of an inner sleeve of a three-way electromagnetic valve according to an embodiment of the present invention;

fig. 8 is a schematic view of a lower portion of an electromagnet housing of a three-way electromagnetic valve according to an embodiment of the present invention;

in the figure: the electromagnetic valve comprises a clamping cover 1, an inner sleeve 2, a coil 3, an electromagnet shell 4, an armature 5, a second sealing ring 6, an electromagnet shell 7, a third sealing ring 8, a first sealing ring 9, a gasket 11, a combined diaphragm 12, a screw 13 and a valve body 14.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

A three-way metal solenoid valve structurally comprises: the electromagnetic valve comprises an electromagnet assembly, a combined diaphragm 12, a valve body 14, a sealing ring, a gasket 11 and a screw 13. The combined diaphragm 12 is obtained by encapsulating a metal plate spring to obtain the combined diaphragm 12, the plate spring is processed and formed in a chemical corrosion mode, and then rubber is inlaid on the plate spring in an injection molding mode to obtain the combined diaphragm 12, wherein the combined diaphragm 12 is an elastic element and a sealing element.

The flow passage port of the electromagnet assembly is provided in the valve body 14 of the side wall. The runner is improved, a double-elliptic pin structure is arranged at the matching part of the inner sleeve (2), and an elliptic hole structure matched with the inner sleeve (2) is designed at the matching part of the lower part (7) of the electromagnet shell. After assembly, the inner sleeve 2 flow channel is aligned with the flow channel of the lower part 7 of the electromagnet shell. Through adopting towards the mode of riveting, assemble spare part, make whole construction assembly compacter, the volume is littleer. By changing the circumferential position of the screw hole of the valve body 14, the included angle between the screw hole and the flow passage is changed.

The inner sleeve 2, the armature 5 and the lower part 7 of the electromagnet shell ensure that the runners are aligned through a positioning structure; the coil is wound on the inner sleeve 2; the upper electromagnet shell 4 is in interference fit with the lower electromagnet shell 7; the clamping cover 1 is connected with the armature 5, and the clamping cover 1 is connected with the electromagnet shell 4 in a punching and riveting mode. The combined membrane 12 is in clearance fit with the valve body 14, and the gasket 11 is in clearance fit with the valve body 14. The valve body 14 and the electromagnet assembly are connected through a plurality of screws 13, and the screws 13 are used for stable connection.

After the parts are assembled and the screws 13 are screwed down, the electromagnet assembly and the valve body 14 can tightly press the outer ring of the combined diaphragm 12, and due to size difference, the valve body 14 can jack up the inner ring of the combined diaphragm 12, so that height difference exists between the inner ring and the outer ring of the combined diaphragm 12, elasticity is generated, and a P-end flow passage of the valve body 14 is blocked. A closed cavity is formed among the electromagnet assembly, the valve body 14 and the sealing ring.

Under the condition of power failure, the electromagnet assembly has no electromagnetic force, and the combined diaphragm 12 generates elastic force to enable the combined diaphragm surface 2 to block a P-end passage port of the valve body 14, so that gas flows to an R-end passage port of the electromagnet assembly from a common end of an A-end passage port of the valve body 14; under the condition of electrifying, the electromagnet assembly generates electromagnetic force, the combined diaphragm 12 is magnetized and attracted, the combined diaphragm 12 deforms, the surface 1 of the combined diaphragm seals the R-end passage port of the electromagnet assembly, the P-end port of the valve body 14 is opened, and gas flows to the P-end passage port of the electromagnet assembly from the A-end passage port (common end) of the valve body 14. The structure realizes the sealing of the framework and the armature through the sealing ring 3 in the double-sealing-ring mode, and realizes the sealing of the framework and the lower part of the electromagnet shell through the sealing ring 2 in the double-sealing-ring mode. The sealing performance of the cavity is ensured together.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (8)

1. The three-way electromagnetic valve is characterized by comprising an electromagnet assembly, a combined diaphragm (12), a valve body (14) and a gasket (11), wherein the electromagnet assembly and the valve body (14) are arranged to be cylindrical structures, the electromagnet assembly is arranged above the valve body (14), the combined diaphragm (12) is arranged at the joint of the electromagnet assembly and the valve body (14), the gasket (11) is connected with the combined diaphragm (12), the gasket (11) is connected with the valve body (14), the valve body (14) is connected with the electromagnet assembly, and the valve body (14) and the electromagnet assembly form a sealing structure; the electromagnet assembly comprises an armature (5) and an inner sleeve (2), and positioning and orienting structures are arranged on the armature (5) and the inner sleeve (2); the matching part of the inner sleeve (2) is provided with a double-elliptic pin structure.

2. A three-way solenoid valve according to claim 1, wherein a plurality of sealing rings are provided between the valve body (14) and the electromagnet assembly.

3. A three-way solenoid valve according to claim 1, characterised in that said combined membrane (12) is made of spring-rubber.

4. A three-way electromagnetic valve according to claim 1, wherein the flow passage port of the valve body (14) is located on a side wall surface of the valve body (14).

5. A three-way solenoid valve according to claim 1, characterised in that said valve body (14) is screwed to the electromagnet assembly.

6. A three-way electromagnetic valve according to claim 1, characterized in that said inner sleeve (2) is connected by means of pins.

7. The three-way electromagnetic valve according to claim 1, wherein the electromagnet assembly comprises a clamping cover (1), an armature (5), an electromagnet housing upper part (4) and an electromagnet housing lower part (7); the clamping cover (1) is connected with the armature (5) and the clamping cover is connected with the electromagnet shell (4) through punching and riveting.

8. A three-way electromagnetic valve according to claim 7, characterized in that the electromagnet housing upper (4) and the electromagnet housing lower (7) are in interference fit.

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