CN210739409U

CN210739409U - Electromagnetic valve

Info

Publication number: CN210739409U
Application number: CN201921676715.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Climate and Appliance Controls Group Co Ltd
Current assignee: Zhejiang Sanhua Commercial Refrigeration Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-12
Anticipated expiration: 2029-10-09

Abstract

The utility model provides a solenoid valve, including valve body part, control unit and buckle part, the valve barrel part of valve body part runs through the perforating hole of control unit, the draw-in groove of valve barrel part exposes the upper end of control unit at least partially, buckle part includes locking portion, fixed part and operating portion, fixed part and control unit fixed connection, the operating portion receives external force effect, locking portion can shift to the second position from the first position, when locking portion was located the first position, the joint portion of locking portion was located the draw-in groove in order to restrict the valve body part and break away from the control unit; when the locking part is located at the second position, the clamping part is located outside the clamping groove so as to be separated from the clamping groove. This scheme has improved the convenience of valve body part and the dismouting of control part.

Description

Electromagnetic valve

Technical Field

The utility model relates to a fluid control technical field, concretely relates to solenoid valve.

Background

The electromagnetic valve is widely applied and mainly controls the on-off of fluid in a system or adjusts the flow of the fluid.

The electromagnetic valve comprises a valve body component and a control component. How to facilitate the assembly and disassembly of the valve body component and the control component provides an improved subject for the technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solenoid valve can improve valve body part and control unit's dismouting convenience through the structure of optimal design solenoid valve.

In order to solve the technical problem, the utility model provides a solenoid valve, which comprises a valve body component and a control component, the control member includes a through hole penetrating an upper end portion and a lower end portion of the control member, the valve body component comprises a valve sleeve component, the valve sleeve component penetrates through the through hole and comprises a clamping groove, the clamping groove is at least partially exposed out of the upper end part of the control component, the electromagnetic valve also comprises a buckle component, the buckle component comprises a locking part, a fixing part and an operating part, the fixing part is fixedly connected with the control component, the locking part can be displaced from the first position to the second position under the action of external force on the operating part, when the locking part is positioned at the first position, the clamping part of the locking part is positioned in the clamping groove to limit the valve body part to be separated from the control part; when the locking part is located at the second position, the clamping part is located outside the clamping groove so as to be separated from the clamping groove.

Drawings

FIG. 1: the utility model provides an overall structure schematic diagram of a solenoid valve;

FIG. 2: FIG. 1 is a schematic structural view of the valve body components;

FIG. 3: i in FIG. 2₁An enlarged schematic view of (a);

FIG. 4: fig. 1 is a schematic structural view of a magnetizer;

FIG. 5: FIG. 1 is a schematic view of the structure of the snap member;

FIG. 6 a: the utility model provides an overall structure schematic diagram of a second electromagnetic valve;

FIG. 6 b: the utility model provides an overall structure schematic diagram of a third electromagnetic valve;

FIG. 7: the utility model provides a second kind of matching schematic diagram of the buckle part and the control part;

FIG. 8: the utility model provides a matching schematic diagram of a third buckle part and a control part;

FIG. 9: FIG. 8 is a schematic view of the structure of the snap member;

FIG. 10: FIG. 8 is a schematic view of the structure of the magnetizer;

FIG. 11 a: partial schematic view of valve body components and control components before assembly;

FIG. 11 b: the locking part is positioned at the second position;

FIG. 11 c: the locking part is located at the schematic diagram of the first position.

In fig. 1 to 11 c:

1-valve body component, 10-valve sleeve component, 11-valve body, 12-sleeve;

13-end enclosure, 131-large diameter section, 132-small diameter section and 133-first step section;

14-clamping groove, 141-annular groove bottom, 142-first side wall and 143-second side wall;

15-head, 16-cylinder;

2-control member, 20-through hole, 201-upper end, 202-lower end;

21-coil, 210-third mounting hole;

22/22C-magnetizer, 220-containing cavity;

221-first magnetic conduction plate, 2210-first mounting hole;

222-a second magnetic conduction plate, 2220-a second mounting hole;

223/223C-third magnetic conductive plate, 224-fourth magnetic conductive plate;

225-positioning projection, 226-groove;

3/3A/3B/3C-snap member, 31/31A/31B-latch;

310-via, 311-via walls;

313-first connecting arm, 314-second connecting arm, 315-bending arm;

32/32A/32B/32C-operation part, 321-ring part and 322-long hole;

33/33A/33B/33C-fixing part, 331-first fixing plate, 332-second fixing plate;

333-positioning hole, 334-first plate portion, 335-second plate portion;

336-radial clearance, 337-latch, 34-deformation.

Detailed Description

The core of the application is to provide a solenoid valve, which comprises a valve body component, a control component and a buckle component, wherein a valve sleeve component of the valve body component penetrates through a through hole of the control component, a clamping groove of the valve sleeve component at least partially exposes out of the upper end part of the control component, the buckle component comprises a locking part, a fixing part and an operating part, the fixing part is fixedly connected with the control component, the operating part is under the action of external force, the locking part can shift from a first position to a second position, and when the locking part is located at the first position, the clamping part of the locking part is located in the clamping groove to limit the valve body component from being separated from the; when the locking part is located at the second position, the clamping part is located outside the clamping groove so as to be separated from the clamping groove. This scheme has improved the convenience of valve body part and the dismouting of control part.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

It should be noted that the terms "upper" and "lower" as used herein are defined in fig. 1 to 11c, and the positions of the components are shown in the figures and the positions of the components are relative to each other, only for the sake of clarity and convenience of the technical solution. It is to be understood that the directional terms used herein are not intended to limit the scope of the claims.

Fig. 1 is a schematic view of an overall structure of a solenoid valve provided by the present invention; FIG. 2 is a schematic structural view of the valve body component of FIG. 1; FIG. 3 is the drawing I in FIG. 2₁An enlarged schematic view of (a); FIG. 4 is a drawing1, a structural schematic diagram of a magnetizer; fig. 5 is a schematic structural view of the snap member in fig. 1.

As shown in fig. 1, 2, 4, and 5, the solenoid valve includes a valve body member 1, a control member 2, and a snap member 3. The valve body component 1 comprises a valve sleeve component 10 and a valve body 11, the valve sleeve component 10 comprises a sleeve 12 and a sealing head 13, and the sleeve 12 is fixedly connected with the sealing head 13. The control member 2 has a through hole 20, and the through hole 20 penetrates an upper end portion 201 and a lower end portion 202 of the control member 2. The control unit 2 includes a coil 21 and a magnetizer 22. The magnetizer 22 includes a first magnetic conduction plate 221, a second magnetic conduction plate 222, a third magnetic conduction plate 223 and a fourth magnetic conduction plate 224, which are oppositely disposed, and are disposed between the first magnetic conduction plate 221 and the second magnetic conduction plate 222, a space enclosed by the first magnetic conduction plate 221, the second magnetic conduction plate 222, the third magnetic conduction plate 223 and the fourth magnetic conduction plate 224 serves as the accommodating cavity 220, and the coil 21 is located in the accommodating cavity 220. The first flux plate 221 includes a first mounting hole 2210, the second flux plate 222 includes a second mounting hole 2220, the coil 21 includes a third mounting hole 210, and the through hole 20 includes the first mounting hole 2210, the second mounting hole 2220, and the third mounting hole 210. The sleeve member 10 penetrates the through hole 20. Specifically, as shown in fig. 1, the valve housing part 10 penetrates the second mounting hole 2220, the third mounting hole 210, and the first mounting hole 2210 in this order. The sleeve part 10 comprises a snap groove 14, the snap groove 14 being at least partly exposed at the upper end 201 of the control part 2. The engaging member 3 includes a locking portion 31, a fixing portion 32, and an operating portion 33, and the operating portion 33 connects the locking portion 31 and the fixing portion 32. The fixing portion 32 is fixedly connected with the third magnetic conductive plate 223 of the magnetic conductor 22, a certain distance is provided between the fixing portion 32 and the operating portion 33, the operating portion 32 can be close to the fixing portion 32 under the action of external force, accordingly, along with the displacement of the operating portion 32, the locking portion 31 can be displaced from the first position to the second position under the pushing of the operating portion 32, and when the locking portion 31 is located at the first position, the clamping portion of the locking portion 31 abuts against the clamping groove 14 to limit the valve body component 1 from being separated from the control component 2; when the locking portion 31 is located at the second position, the clamping portion of the locking portion 31 is located outside the card slot 14 and can be separated from the card slot 14. Specifically, the locking portion 31 includes a through hole 310, a hole wall 311 of the through hole 310 serves as the clamping portion, and the operating portion 32 has a resilience force away from the third magnetic conductive plate 223 after being stressed, the resilience force enables the hole wall 311 of the through hole 310 to abut against the clamping groove 14, and at this time, the locking portion 31 is located at the first position, so that the valve body component 1 is limited from being separated from the control component 2, that is, the control component 2 is installed on the valve body component 1 through the fastening component 3, and the electromagnetic valve is assembled; when the valve body member 1 and the control member 2 need to be detached, an external force is applied to the operating portion 32, and the hole wall 311 of the through hole 310 is separated from the notch 14, so that the locking portion 31 can be separated from the notch 14, and at this time, the locking portion 31 is in the second position.

According to the technical scheme of the embodiment, the clamping groove 14 is formed in the valve sleeve 10 of the valve body component 1, at least part of the clamping groove 14 is exposed out of the upper end portion 201 of the control component 2, the buckling component 3 is provided with the locking portion 31, the locking portion 31 can be displaced from the first position to the second position, when the locking portion 31 is located at the first position, the clamping portion of the locking portion 31 abuts against the clamping groove 14 to limit the valve body component 1 to be separated from the control component 2, and when the locking portion 31 is located at the second position, the clamping portion is located outside the clamping groove 14 and can be separated from the clamping groove 14. This technical scheme has improved the convenience of valve body part 1 and the installation of control unit 2 and dismantlement.

Specifically, the fastening member 3 is formed by bending a stainless steel sheet metal part, but may be formed by bending other metal materials. The fixing portion 33 includes a first fixing plate 331 and a second fixing plate 332, the first fixing plate 331 is close to the operating portion 22, and before the fixing portion 33 is fixed to the third magnetic conductive plate 223, a minimum gap between the first fixing plate 331 and the second fixing plate 332 is smaller than a thickness of the third magnetic conductive plate 223. Thus, the first fixing plate 331 and the second fixing plate 332 can clamp the third magnetic conductive plate 223, so that the fastening part 3 is fixed to the magnetic conductor 22. The fixing device has the beneficial effects that welding or riveting is not needed through the fixing mode, and the manufacturing cost is reduced.

Further, as shown in fig. 4 and 5, the first fixing plate 331 is located at the outer side of the third magnetic conducting plate 223, the second fixing plate 332 is located at the inner side of the third magnetic conducting plate 223, a raised positioning protrusion 225 is arranged at the outer side surface of the third magnetic conducting plate 223, the first fixing plate 331 is provided with a positioning hole 333, and the positioning protrusion 225 is embedded into the positioning hole 333 to realize the positioning of the fastening part 3 and the magnetic conductor 22; of course, the inner side surface of the third magnetic conducting plate 223 is provided with a raised positioning protrusion, and the second fixing plate 332 matched with the raised positioning protrusion is provided with a positioning hole, so that the positioning of the fastening component 3 and the magnetic conductor 22 can also be realized. So set up, improved the reliability of the location and the installation of buckle part 3 and magnetizer 22.

Of course, as a variant design, the positioning hole can also be designed as a positioning groove, and the positioning protrusion is matched with the positioning groove, so that the purpose of the embodiment can be realized.

Furthermore, as shown in fig. 11a, since the locking portion 31 is substantially plate-shaped, the acute angle α formed between the plane of the locking portion 31 and the plane of the first magnetic conductive plate 221 is less than 15 °, and thus the mounting convenience of the control member 2 and the valve body member 1 can be improved.

Fig. 6a is a schematic view of an overall structure of a second electromagnetic valve provided by the present invention; fig. 6b is a schematic view of the overall structure of a third electromagnetic valve according to the present invention.

Alternatively, as shown in fig. 6a, the locking portion 31A of the buckle member 3A is formed by bending a wire, and the locking portion 31A includes a first connecting arm 313, a second connecting arm 314, and a bent arm 315 connecting the first connecting arm 313 and the second connecting arm 314. In the present embodiment, the bent arm 315 serves as the engaging portion. The end of the operating portion 32A close to the first magnetic conductive plate 221 includes a ring-shaped portion 321, and the end of the first connecting arm 313 and the end of the second connecting arm 314 are respectively bent and then clamped into the ring-shaped portion 321, so that the locking portion 31A and the operating portion 32A form a hinged connection. Thus, in a state where the operating portion 32A applies a force in the direction of the third magnetic conductive plate 223, the operating portion 32A can approach the third magnetic conductive plate 223, so that the bending arm 315 is clamped into the clamping groove 14, an inner edge of the bending arm 315 abuts against the clamping groove 14 to limit the valve body component 1 from being separated from the control component 2, and the valve body component 1 and the control component 2 are mounted.

Alternatively, as shown in fig. 6b, the latch member is formed by bending a stainless steel sheet into a substantially rectangular shape. Specifically, the second magnetic conductive plate 222 is provided with a positioning boss (not shown) protruding downward, and the fixing portion 33A is provided with a positioning hole (not shown), and the positioning boss is engaged with the positioning hole and elastically clamped to the outer periphery of the magnetic conductor 22 by the fastening member itself to achieve fixing.

As shown in fig. 3 and 11c, the closure head 13 of the valve sleeve member 10 is machined from a metal bar stock and includes a large diameter section 131 and a small diameter section 132. The first step 133 between the large diameter section 131 and the small diameter section 132, the large diameter section 131 and the sleeve 12 are fixedly connected, the clamping groove 14 is arranged on the small diameter section 132, the large diameter section 131 and the small diameter section 132 form the first step 133, and the first magnetic conducting plate 221 is arranged on the first step 133, so that the magnetic flux of the magnetic conductor 22 can be improved.

Further, as shown in fig. 3 and 11c, the small diameter section 132 further includes a head portion 15 and a cylindrical portion 16, and the above-mentioned slot 14 is formed between the head portion 15 and the cylindrical portion 16. The height of the cylindrical part 16 is approximately equal to the thickness of the first magnetic conduction plate 221, and thus the installation reliability of the control component 2 and the valve body component 1 is improved. When the locking portion 31 is located at the first position, the outer peripheral wall of the cylindrical portion 16 abuts against the hole wall of the first mounting hole 2210 of the first flux guide plate 221, so that the magnetic flux of the flux guide 22 can be increased.

Further, the outer peripheral wall of the head portion 15 is tapered in diameter away from the cylindrical portion 16. The valve body component 1 has the advantages that when the valve body component 1 is assembled with the control component 2 and the buckling component 3, the head part 15 can penetrate through the first mounting hole 2210 and the through hole 310 of the locking part 31 through the guiding effect of the peripheral wall of the head part 15, and the assembling efficiency is improved.

Further, as shown in fig. 3 and 11c, the card slot 14 includes a circular slot bottom 141, and the card slot 14 is gradually enlarged from the direction away from the circular slot bottom 141. Specifically, the card slot 14 further includes a first side wall 142 and a second side wall 143, a lower end surface of the head portion 15 is the first side wall 142, an upper end surface of the cylindrical portion 16 is the second side wall 143, and an inner diameter of the second side wall 143 increases toward an opening direction of the card slot. When the locking portion 31 is located at the first position, the hole wall 311 of the through hole 310 abuts against the second side wall 143. It is beneficial that the second sidewall 143 acts as a guide surface to facilitate the sliding of the bore wall 311 of the through bore 310 into the card slot 14.

Fig. 7 is a schematic view of another engagement between the buckle component and the control component provided by the present invention.

As another modification of the latch member, as shown in fig. 7, the latch member 3B further includes a deformable portion 34, the deformable portion 34 connects the fixing portion 33B and the locking portion 31B, the locking portion 31B connects the deformable portion 34 and the operating portion 32B, and the operating portion 32B extends upward from one end of the locking portion 31B away from the third magnetic conductive plate 223. The present embodiment is different from the above-described embodiments in that the deforming portion 34 is located at an end of the locking portion 31B away from the third magnetic conductive plate 223, the operating portion 32B is pushed, the deforming portion 34 is deformed in a direction away from the third magnetic conductive plate 223, and the locking portion 31B can be displaced from the first position to the second position to engage with the valve body member 1.

Fig. 8 is a schematic view illustrating the cooperation between the third buckle component and the control component provided by the present invention; FIG. 9 is a schematic view of the structure of the snap member of FIG. 8; fig. 10 is a schematic structural view of the magnetizer in fig. 8.

In this embodiment, the lateral outer edge of the third flux guide plate 223C of the flux guide 22C is provided with two grooves 226, the fixing portion 33C includes an elastic tongue 337, and the elastic tongue 337 is elastically fastened to the grooves 226, so as to fasten the fastening member 3C to the flux guide 22C. Specifically, the fixing portion 33C includes a first plate portion 334 and a second plate portion 335 with a radial gap 336 therebetween, i.e., the first plate portion 334 can be distant from or close to the second plate portion 335. Specifically, two elastic locking tongues 337 are provided, respectively on the outer side surfaces of the first plate portion 334 and the second plate portion 335. In the actual assembly process, by utilizing the radial gap 336 between the first plate part 334 and the second plate part 335, the two elastic clamping tongues 337 are radially expanded by the clamp, at this time, the first plate part 334 can be far away from the second plate part 335, and the radial gap 336 is enlarged; and then clamped into the groove 226, and clamped and fixed with the third magnetic conduction plate 223C by using the elasticity of the stretched elastic clamping tongue 337. The fixing device has the beneficial effects that welding or riveting is not needed through the fixing mode, and the manufacturing cost is reduced.

Further, the operating portion 32C includes an elongated hole 322, and the elongated hole 322 extends to the radial gap 336. So set up, be favorable to improving the elasticity of two elasticity latch 337, be convenient for buckle part 3C and third magnetic conduction board 223C's installation.

FIG. 11a is a fragmentary schematic view of the valve body components and control components prior to assembly; FIG. 11b is a schematic view of the latch portion in a second position; FIG. 11c is a schematic view of the locking portion in the first position.

Hereinafter, the process of mounting the valve body member 1 and the control member 2 will be described with reference to fig. 1, 11a, 11b, and 11 c.

As shown in fig. 11a, before the valve body member 1 and the control member 2 are mounted, in a state where no force is applied to the operating portion 32, the locking portion 31 partially covers the first mounting hole 2210 of the first magnetic conductive plate 221, and at this time, the small diameter section 132 of the end socket 13 cannot penetrate through the through hole 310 of the locking portion 31; as shown in fig. 11b, in a state where a force is applied to the operating portion 32, the operating portion 32 gradually approaches the third magnetic conductive plate 223, and the locking portion 31 slides along the upper surface of the first magnetic conductive plate 221 until the second position is reached; as shown in fig. 11c, after the small-diameter section 132 passes through the first mounting hole 2210 of the first magnetic conductive plate 221 and the through hole 310 of the locking portion 31, the locking groove 14 is partially exposed to the through hole 310, the hole wall 311 of the through hole 310 is inserted into the locking groove 14 by the resilient force of the operating portion 32 pressed, the locking portion 31 reaches the first position, and the small-diameter section 31 is pulled in the direction of the third magnetic conductive plate 223, thereby completing the mounting of the valve body member 1 and the control member 2.

The disassembly process of the valve body part 1 and the control part 2 is the reverse of the installation process described above and will not be described in detail.

In the practical process of assembling and disassembling the electromagnetic valve, an operator only needs to hold the control component 2 with one hand and the valve body component 1 with the other hand to push the operating part to easily assemble and disassemble the electromagnetic valve without any tool, and the operation is simple and convenient.

It should be understood by those skilled in the art that based on the technical idea of the present invention, a plurality of similar technical solutions can be extended on the basis of the technical solutions described above. If, the draw-in groove can set up on sleeve pipe 12, and head 13 sets up at sleeve pipe 12 inner chamber, so, sleeve pipe 12's draw-in groove and the through-hole 310 cooperation of locking portion 31 are spacing, and this structure also can realize this implementation neotype purpose, also has the utility model discloses a technological effect.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A solenoid valve comprises a valve body component and a control component, wherein the control component comprises a through hole which penetrates through the upper end part and the lower end part of the control component, and the solenoid valve is characterized in that the valve body component comprises a valve sleeve component which penetrates through the through hole, the valve sleeve component comprises a clamping groove, at least part of the clamping groove is exposed out of the upper end part of the control component, the solenoid valve further comprises a buckle component, the buckle component comprises a locking part, a fixing part and an operating part, the fixing part is fixedly connected with the control component, the operating part can shift from a first position to a second position under the action of external force, and when the locking part is located at the first position, the clamping part of the locking part is located in the clamping groove to limit the valve body component to be separated from the control component; when the locking part is located at the second position, the clamping part is located outside the clamping groove so as to be separated from the clamping groove.

2. The electromagnetic valve according to claim 1, wherein the control component includes a magnetizer and a coil, the magnetizer is fixedly connected to the coil, the magnetizer includes a first magnetic conductive plate, a second magnetic conductive plate and a third magnetic conductive plate, the first magnetic conductive plate and the second magnetic conductive plate are oppositely disposed, the first magnetic conductive plate is located above the coil, the second magnetic conductive plate is located below the coil, the first magnetic conductive plate includes a first mounting hole, the second magnetic conductive plate includes a second mounting hole, the coil includes a third mounting hole, and the through hole includes the first mounting hole, the second mounting hole and the third mounting hole.

3. The electromagnetic valve according to claim 2, wherein the buckle part is formed by bending a sheet metal part into a whole, an included angle α formed between a plane where the locking part is located and a plane where the first magnetic conductive plate is located is less than 15 degrees, and when the locking part is located at the first position, a certain distance is formed between the operating part and the third magnetic conductive plate.

4. The electromagnetic valve according to claim 2, wherein the fixing portion comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate sandwich the third magnetic conductive plate, the first fixing plate is located on the outer side of the third magnetic conductive plate, the second fixing plate is located on the inner side of the third magnetic conductive plate, a positioning protrusion is disposed on the outer side of the third magnetic conductive plate, the first fixing plate is provided with a positioning hole, or a positioning protrusion is disposed on the inner side of the third magnetic conductive plate, the second fixing plate is provided with a positioning hole, and the positioning protrusion is at least partially located in the positioning hole.

5. The electromagnetic valve according to claim 2, wherein the locking portion includes a through hole, a hole wall of the through hole serves as the engaging portion, and under the action of an external force, the operating portion can slide relative to the upper surface of the first magnetic conductive plate until the engaging groove at least partially exposes out of the through hole.

6. The electromagnetic valve according to claim 2, wherein the fixing portion and the operating portion are integrally formed by bending a sheet metal part, the locking portion is formed by bending a metal wire, the operating portion is hinged to the locking portion, the locking portion includes a first connecting arm, a second connecting arm, and a bending arm connecting the first connecting arm and the second connecting arm, and the bending arm serves as the clamping portion.

7. The electromagnetic valve according to claim 2, wherein the buckle member further comprises a deformation portion connecting the fixing portion and the lock portion, the lock portion connecting the deformation portion and the operation portion, and the operation portion extending upward from an end of the lock portion away from the third magnetic conductive plate.

8. The electromagnetic valve according to claim 2, wherein a groove is formed in a lateral outer edge of the third magnetic conductive plate, and the fixing portion includes an elastic latch, and the elastic latch is elastically latched in the groove.

9. The electromagnetic valve according to claim 8, wherein the fixing portion includes a first plate portion and a second plate portion having a radial gap, the first plate portion being distable from the second plate portion.

10. The electromagnetic valve according to claim 9, wherein the operating portion includes an elongated hole that extends to the radial gap.

11. The electromagnetic valve according to any one of claims 2 to 10, wherein the valve housing member comprises a sealing head and a sleeve, the sealing head comprises a large diameter section and a small diameter section, the large diameter section is fixedly connected with the sleeve, the small diameter section comprises the clamping groove, the large diameter section and the small diameter section form a first step portion, and the first magnetic conductive plate is disposed on the first step portion.

12. The electromagnetic valve according to claim 11, wherein the small diameter section further includes a head portion and a cylindrical portion, the engaging groove is located between the head portion and the cylindrical portion, the outer peripheral wall of the head portion is gradually reduced in diameter in a direction away from the cylindrical portion, the height of the cylindrical portion is substantially equal to the thickness of the first magnetic conductive plate, and when the locking portion is located at the first position, the outer peripheral wall of the cylindrical portion abuts against the hole wall of the first mounting hole of the first magnetic conductive plate.

13. The electromagnetic valve according to claim 12, wherein the locking groove is an annular groove, the thickness of the locking portion is smaller than the width of the locking groove, the locking groove includes a first side wall and a second side wall, an upper end surface of the cylindrical portion serves as the first side wall, a lower end surface of the head portion serves as the second side wall, the second side wall has an inner diameter that is gradually larger toward an opening direction of the locking groove, and the locking portion abuts against the second side wall when the locking portion is located at the first position.