CN214368068U - Solenoid valve with seal assembly - Google Patents

Abstract

The utility model discloses a solenoid valve with a sealing component, which comprises a valve body, a core iron component, a normally open end component and a normally closed end component, wherein the core iron component is positioned in the middle of the inner side of the valve body, the normally open end component is positioned on the upper part of the inner side of the valve body, the normally closed end is positioned on the lower part of the inner side of the valve body, the solenoid valve also comprises a sealing component and a buffer component, the sealing component is positioned on two sides of the middle of the normally open end component and positioned on the inner side of the valve body, the buffer component is positioned on the inner side of the valve body and positioned between the core iron component and the normally open end component, the utility model has the advantages of simple structure, sealing component, emergency sealing operation of the normally open end component according to the use requirement, particularly when the leakage of the solenoid valve occurs, the solenoid valve can be sealed emergently, the sealing performance is good, the practicability is strong, and the buffer component is arranged, the buffer can buffer core iron assemblies with different specifications and normally open end assemblies, and has good buffer effect and flexible use.

Description

Solenoid valve with seal assembly

Technical Field

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

Background

In the prior art, the solenoid valve is the industrial equipment with electromagnetic control, be the automatic basic component who is used for controlling fluid, belong to the executor, can install seal assembly in the solenoid valve, its structure of seal assembly includes sealed the pad, sealed the pad is circular, and the centre of sealed pad is equipped with the shaft hole, the outer edge of sealed pad is equipped with two locating holes, after sealed pad is installed on the solenoid valve, need to pack the middle part card of sealed pad into in the recess, but when the middle part of sealed pad is installed, need use special utensil to pack into the sealed pad in the recess, not only the installation is troublesome, and in case the installation is not in place, the condition of leaking will appear, wait to further improve.

The application numbers are: 201620729916.5 discloses a sealing assembly for a solenoid valve, which comprises a sealing assembly installed in the solenoid valve, wherein the sealing assembly comprises a water-through seat, a sealing gasket installed on the water-through seat, and a positioning claw arranged at the top of the sealing gasket and used for fixing the sealing gasket; a boss is arranged in the middle of the top of the water passing seat, a through hole for the boss to penetrate through is formed in the middle of the sealing gasket, and the sealing gasket is sleeved at the bottom end of the positioning seat; the boss is by base and footstock integrated into one piece, and is formed with the recess between base and the footstock, the top of positioning pawl has a plurality of jack catchs, the positioning pawl cover is laminated on the base and the bottom surface of positioning pawl and the sealed top surface that fills up, the jack catch card is gone into in the recess, and the top surface of jack catch is laminated with the bottom surface of footstock. However, this kind of solenoid valve seal assembly is not applicable to two three way solenoid valves to it can't seal the operation according to the user demand to normally open the end subassembly, and the practicality is relatively poor, does not have the buffering subassembly, can't cushion core iron subassembly and the normally open end subassembly of different specifications, and the buffering effect is relatively poor, makes the solenoid valve appear damaging in the course of the work easily, can't send the audible and visual alarm, and the vigilance is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solenoid valve with seal assembly.

In order to achieve the above object, the present invention provides a technical solution:

the utility model provides an electromagnetic valve with seal assembly, includes valve body, core subassembly, normally opens end subassembly and normally closes the end subassembly, the valve body is inside hollow structure, the core subassembly is located the inboard middle part of valve body, normally open the end subassembly and be located the inboard upper portion of valve body, normally close end subassembly is located the inboard lower part of valve body still includes seal assembly and buffering subassembly, seal assembly is located normally open end subassembly middle part both sides just are located the valve body is inboard, buffering subassembly is located the valve body is inboard and be located core subassembly with normally open between the end subassembly.

The core iron subassembly includes core iron body, sealed pad and self-modulation spring, the core iron body sets up the inboard middle part of valve body and with valve body sliding connection, the core iron body is inside hollow structure, sealed pad has two, two sealed pad sets up respectively the inboard upper portion of core iron body and lower part, sealed pad with core iron body sliding connection, upper portion sealed pad with core iron body joint, the lower part sealed pad through the riveting gasket with core iron body joint, self-modulation spring sets up two sealed between the pad and its upper and lower both ends respectively with two sealed pad cup joints.

The end subassembly that opens always includes haplopore disk seat, normally opens disk seat and normally open spring, haplopore disk seat sets up inboard upper portion of valve body and with valve body slip joint, the haplopore disk seat is inside hollow structure, normally open the disk seat and set up haplopore disk seat inboard lower part and with haplopore disk seat sliding connection, normally open the disk seat is inside hollow structure, normally open the spring setting be in normally open the disk seat lower part and with normally open the disk seat cup joints, normally open the lower part and the core iron body butt of spring, normally open the disk seat and be located the valve body is inside and set up side by side with sealed the pad.

The normally closed end assembly comprises a double-hole valve seat and a normally closed valve seat, the double-hole valve seat is arranged on the lower portion of the inner side of the valve body and connected with the valve body in a sliding mode, the normally closed valve seat is arranged on the upper portion of the double-hole valve seat and connected with the double-hole valve seat in an embedded mode, and the normally closed valve seat is located inside the valve body and arranged in parallel with the sealing gasket.

Seal assembly is including sealed gas spring and sealed piece, sealed gas spring has two, two sealed gas spring symmetry sets up at the lateral wall of haplopore disk seat and is connected with the lateral wall embedding of haplopore disk seat, sealed piece has two, two sealed piece sets up respectively two sealed gas spring the inboard and with sealed gas spring fixed connection, the cross section of sealed piece is semi-circular, two sealed piece can merge into circular piece and be used for sealing up haplopore disk seat inboard cavity route, seal assembly runs through the lateral wall of haplopore disk seat, seal assembly is located the valve body is inboard.

The buffering assembly is used for buffering the core iron assembly and the normally-open end assembly, the buffering assembly comprises a buffering block group and a buffering spring, the buffering block group is two groups, two groups of buffering block groups are respectively arranged on two sides in the valve body and are in sliding connection with the valve body, the buffering block group is arranged between the core iron assembly and the normally-open end assembly, the buffering block group is composed of two buffering blocks which are symmetrically arranged, mounting grooves are formed in the corresponding positions of the two buffering blocks, the buffering spring is two, the buffering spring is respectively fixedly connected with the buffering block group through the two mounting grooves, and the upper end and the lower end of the buffering spring are respectively fixedly connected with the corresponding buffering blocks.

Still including the audible-visual annunciator that is used for detecting the valve body condition of leaking, audible-visual annunciator sets up the end subassembly is opened in usual with the valve body junction just with valve body sealing connection.

The rubber gasket is arranged at the lower end of the single-hole valve seat and the upper end of the double-hole valve seat respectively, and is in sealing connection with the single-hole valve seat and the double-hole valve seat respectively.

The valve body is characterized by further comprising a normally-open end outlet, a normally-closed end outlet and a normally-closed end inlet, wherein the normally-open end outlet is formed in the upper end of the single-hole valve seat, the normally-closed end outlet is formed in one side of the lower end of the double-hole valve seat and is communicated with the interior of the valve body, the normally-closed end inlet is formed in the other side of the lower end of the double-hole valve seat, and the normally-open end outlet, the normally-closed end outlet and the normally-closed end inlet are respectively connected with other components through pipelines.

The single-hole valve seat is characterized in that a boss is arranged at the upper end of the single-hole valve seat, external threads are arranged on the outer side of the boss, and the single-hole valve seat is connected with other components through threads on the outer side of the boss.

The utility model has the advantages that:

simple structure is equipped with seal assembly, can seal the operation to normally opening the end subassembly according to the user demand, especially when the condition of leaking appears in the solenoid valve, can promptly seal the solenoid valve, and the leakproofness is good, and the practicality is strong, is equipped with the buffering subassembly, can cushion the core iron subassembly of different specifications and the end subassembly of opening always, and buffering effect is good, uses in a flexible way, is equipped with audible-visual annunciator in addition, when the solenoid valve appears leaking etc. unusually, can send audible-visual annunciator, the suggestion staff maintains it.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the seal assembly of the present invention;

fig. 3 is a schematic structural diagram of the buffer assembly of the present invention.

In the figure: 1. a valve body; 2. a core iron assembly; 3. a normally open end assembly; 4. a normally closed end assembly; 5. a seal assembly; 6. a buffer assembly; 7. a core iron body; 8. a gasket; 9. a self-adjusting spring; 10. a single-bore valve seat; 11. A normally open valve seat; 12. a normally open spring; 13. a dual-orifice valve seat; 14. a normally closed valve seat; 15. sealing the gas spring; 16. a sealing block; 17. a buffer block group; 18. a buffer spring; 19. an audible and visual alarm; 20. a rubber gasket; 21. a normally open end outlet; 22. a normally closed end outlet; 23. the inlet of the normally closed end.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings,

the utility model provides a solenoid valve with seal assembly 5, including valve body 1, core iron subassembly 2, normally open end subassembly 3 and normally close end subassembly 4, valve body 1 is inside hollow structure, core iron subassembly 2 is located the inboard middle part of valve body 1, normally open end subassembly 3 is located the inboard upper portion of valve body 1, normally close end subassembly 4 is located the inboard lower part of valve body 1, still include seal assembly 5 and buffering subassembly 6, seal assembly 5 is located normally open end subassembly 3 middle part both sides and is located valve body 1 inboardly, buffering subassembly 6 is located valve body 1 inboardly and is located between core iron subassembly 2 and the normally open end subassembly 3, the utility model discloses the overall structure schematic diagram is shown in fig. 1.

The core iron assembly 2 comprises a core iron body 7, two sealing gaskets 8 and a self-adjusting spring 9, wherein the core iron body 7 is arranged in the middle of the inner side of the valve body 1 and is in sliding connection with the valve body 1, the core iron body 7 is of an internal hollow structure, the two sealing gaskets 8 are arranged on the upper portion and the lower portion of the inner side of the core iron body 7 respectively, the sealing gaskets 8 are in sliding connection with the core iron body 7, the sealing gasket 8 on the upper portion is in clamping connection with the core iron body 7, the sealing gasket 8 on the lower portion is in clamping connection with the core iron body 7 through a riveting gasket, the self-adjusting spring 9 is arranged between the two sealing gaskets 8, the upper end and the lower end of the self-adjusting spring 9 are respectively sleeved with the two sealing gaskets 8, the side wall of the core iron body 7 is provided with an oil outlet corresponding to an internal hollow passage, the core iron assembly 2 is matched with the core iron body 7, the sealing gaskets 8 and the self-adjusting spring 9 to form an electromagnetic coil and a valve core of the two-position three-way electromagnetic valve, and is used as an execution mechanism to achieve the purpose of changing the flowing direction of an air source, the core iron body 7 is used for accommodating a sealing gasket 8 and a self-adjusting spring 9 and serves as a base body of the core iron assembly 2, the sealing gasket 8 is used as a valve core and moves under the action of electromagnetic force, so that the flowing direction of an air source is changed, the self-adjusting spring 9 is used for being connected with the sealing gasket 8, the riveting gasket is used for providing support for the sealing gasket 8 at the lower part and providing support force required by resetting for the sealing gasket 8, and other structures with the same electromagnetic principle can be adopted to replace the structure.

The normally open end component 3 comprises a single-hole valve seat 10, a normally open valve seat 11 and a normally open spring 12, the single-hole valve seat 10 is arranged on the upper portion of the inner side of the valve body 1 and is in sliding clamping connection with the valve body 1, the single-hole valve seat 10 is of an internal hollow structure, the normally open valve seat 11 is arranged on the lower portion of the inner side of the single-hole valve seat 10 and is in sliding connection with the single-hole valve seat 10, the normally open valve seat 11 is of an internal hollow structure, the normally open spring 12 is arranged on the lower portion of the normally open valve seat 11 and is sleeved with the normally open valve seat 11, the lower portion of the normally open spring 12 is abutted to the core iron body 7, the normally open valve seat 11 is arranged inside the valve body 1 and is arranged in parallel to the sealing gasket 8, the normally open end component 3 is matched with the single-hole valve seat 10, the normally open valve seat 11 and the normally open spring 12 to form a normally open end of the two-position three-way electromagnetic valve, wherein the single-hole valve seat 10 is used for providing mounting support for the normally open valve seat 11 and the normally open spring 12 and is connected with the valve body 1, the normally open end component 3 through a normally open end path inside the normally open end, the normally open end assembly 3 is guaranteed to be in a normally open state, and the normally open spring 12 is used for providing support and buffering for the normally open valve seat 11 and plays a certain protection role in the normally open valve seat 11.

The upper end of the single-hole valve seat 10 is provided with a boss, the outer side of the boss is provided with external threads, and the single-hole valve seat 10 is connected with other components through the threads on the outer side of the boss.

The normally closed end assembly 4 comprises a double-hole valve seat 13 and a normally closed valve seat 14, the double-hole valve seat 13 is arranged on the lower portion of the inner side of the valve body 1 and is in sliding clamping connection with the valve body 1, the normally closed valve seat 14 is arranged on the upper portion of the double-hole valve seat 13 and is connected with the double-hole valve seat 13 in an embedded mode, the normally closed valve seat 14 is located inside the valve body 1 and is arranged in parallel with the sealing gasket 8, the upper end of the normally closed valve seat 14 is connected with the corresponding sealing gasket 8 in an inserted mode, the normally closed end assembly 4 is matched with the double-hole valve seat 13 through the double-hole valve seat 13 and the normally closed valve seat 14 to form a normally closed end of the two-position three-way electromagnetic valve, the double-hole valve seat 13 is used for providing mounting support for the normally closed valve seat 14 and is connected with the valve body 1, and the normally closed valve seat 14 is used for being connected with the corresponding sealing gasket 8 and ensuring that the normally closed end assembly 4 is in a normally closed state.

The sealing assembly 5 comprises two sealing gas springs 15 and two sealing blocks 16, the two sealing gas springs 15 are symmetrically arranged on the side wall of the single-hole valve seat 10 and are embedded and connected with the side wall of the single-hole valve seat 10, the two sealing blocks 16 are arranged on the inner sides of the two sealing gas springs 15 respectively and are fixedly connected with the sealing gas springs 15, the cross section of each sealing block 16 is semicircular, the two sealing blocks 16 can be combined into a circular block to be used for sealing a hollow passage inside the single-hole valve seat 10, the sealing assembly 5 penetrates through the side wall of the single-hole valve seat 10, the sealing assembly 5 is located on the inner side of the valve body 1, the sealing assembly 5 is matched with the sealing blocks 16 through the sealing gas springs 15, the normally-open end assembly 3 is sealed according to use requirements, particularly emergency sealing is carried out on the electromagnetic valve when the electromagnetic valve leaks, wherein the sealing gas springs 15 are used for driving the sealing blocks 16 to extend into the single-hole valve seat 10 from the side wall of the single-hole valve seat 10 The passageway, sealed piece 16 are used for piecing together circularly and seal up the inside passageway of haplopore disk seat 10, the utility model discloses seal assembly 5 cooperation schematic diagram is shown in fig. 2.

The buffer assembly 6 is used for buffering the core iron assembly 2 and the normally open end assembly 3, the buffer assembly 6 comprises two buffer block groups 17 and buffer springs 18, the two buffer block groups 17 are respectively arranged at two sides in the valve body 1 and are in sliding connection with the valve body 1, the buffer block group 17 is positioned between the core iron assembly 2 and the normally open end assembly 3, the buffer block group 17 is composed of two buffer block groups 17 which are symmetrically arranged, mounting grooves are arranged at the corresponding positions of the two buffer blocks, two buffer springs 18 are provided, the two buffer springs 18 are respectively and fixedly connected with the two buffer block groups 17 through the two mounting grooves, the upper end and the lower end of each buffer spring 18 are respectively and fixedly connected with the corresponding buffer block, the buffer assembly 6 is matched with the buffer blocks 17 and the buffer springs 18 to buffer the core iron assemblies 2 and the normally open end assembly 3 with different specifications, and prevent the impact force between the core iron assembly 2 and the normally open end assembly 3 from damaging the internal components, wherein, buffer block group 17 is used for providing the support and cushions core iron subassembly 2 and the end subassembly 3 that always opens for buffer spring 18, and buffer spring 18 is used for providing the buffering for buffer block group 17, and then provides the buffering to core iron subassembly 2 and the end subassembly 3 that always opens, the utility model discloses buffer assembly 6 structure schematic is shown in fig. 3.

Still including the audible and visual alarm 19 that is used for detecting the valve body 1 condition of leaking, audible and visual alarm 19 sets up in the department of being connected of the end subassembly 3 of starting often and valve body 1 and with valve body 1 sealing connection, audible and visual alarm 19 is used for when the solenoid valve appears leaking etc. unusually, sends audible and visual alarm, and the suggestion staff maintains it.

Still include rubber gasket 20, rubber gasket 20 has two, two rubber gaskets 20 set up respectively in haplopore disk seat 10 lower extreme and diplopore disk seat 13 upper end, two rubber gaskets 20 respectively with haplopore disk seat 10 and diplopore disk seat 13 sealing connection, the rubber gasket 20 inboard of diplopore disk seat 13 upper end is equipped with the stainless steel gasket, the stainless steel gasket is used for strengthening the joint strength between diplopore disk seat 13 and the valve body 1, rubber gasket 20 is used for hoisting device overall tightness nature.

The valve body is characterized by further comprising a normally-open end outlet 21, a normally-closed end outlet 22 and a normally-closed end inlet 23, wherein the normally-open end outlet 21 is arranged at the upper end of the single-hole valve seat 10, the normally-closed end outlet 22 is arranged on one side of the lower end of the double-hole valve seat 13 and is communicated with the interior of the valve body 1, the normally-closed end inlet 23 is arranged on the other side of the lower end of the double-hole valve seat 13, and the normally-open end outlet 21, the normally-closed end outlet 22 and the normally-closed end inlet 23 are respectively connected with other components through pipelines.

The working principle is as follows:

when the solenoid valve normally-open end component 3 needs to be sealed, the sealing gas spring 15 drives the sealing block 16 to extend into a passage of the single-hole valve seat 10, the two sealing blocks 16 are spliced into a circular block, the passage in the single-hole valve seat 10 is sealed, and in the working process of the solenoid valve, the buffer device is matched with the normally-open end component 3 and the core iron component 2 through the buffer block group 17 and the buffer spring 18, so that the impact force is prevented from damaging internal components of the solenoid valve.

The beneficial effects of the utility model are that simple structure is equipped with seal assembly 5, can seal the operation to normally opening end subassembly 3 according to the user demand, especially when the condition that leaks appears in the solenoid valve, can promptly seal the solenoid valve, the leakproofness is good, therefore, the clothes hanger is strong in practicability, be equipped with buffering subassembly 6, can cushion core iron subassembly 2 and the normally open end subassembly 3 of different specifications, buffering effect is good, it is nimble to use, be equipped with audible-visual annunciator 19 in addition, when the solenoid valve appears leaking etc. unusually, audible-visual alarm can be sent, the suggestion staff maintains it.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (10)

1. The utility model provides an electromagnetic valve with seal assembly, includes valve body (1), core subassembly (2), normally open end subassembly (3) and normally closed end subassembly (4), valve body (1) is inside hollow structure, core subassembly (2) are located valve body (1) inboard middle part, normally open end subassembly (3) and be located valve body (1) inboard upper portion, normally closed end subassembly (4) are located valve body (1) inboard lower part, its characterized in that still includes seal assembly (5) and buffering subassembly (6), seal assembly (5) are located normally open end subassembly (3) middle part both sides and be located valve body (1) are inboard, buffering subassembly (6) are located valve body (1) is inboard and be located core subassembly (2) with normally open between the end subassembly (3).

2. The solenoid valve with sealing assembly according to claim 1, characterized in that said core assembly (2) comprises a core body (7), a gasket (8) and a self-adjusting spring (9), the core iron body (7) is arranged in the middle of the inner side of the valve body (1) and is connected with the valve body (1) in a sliding way, the core iron body (7) is of an internal hollow structure, two sealing gaskets (8) are arranged, the two sealing gaskets (8) are respectively arranged at the upper part and the lower part of the inner side of the core iron body (7), the sealing gasket (8) is connected with the core iron body (7) in a sliding way, the sealing gasket (8) at the upper part is clamped with the core iron body (7), the sealing gasket (8) at the lower part is clamped with the core iron body (7) through a riveting gasket, the self-adjusting spring (9) is arranged between the two sealing gaskets (8), and the upper end and the lower end of the self-adjusting spring are respectively sleeved with the two sealing gaskets (8).

3. Solenoid valve with sealing assembly according to claim 1, characterized in that said normally open end assembly (3) comprises a single-hole valve seat (10), a normally open valve seat (11) and a normally open spring (12), the single-hole valve seat (10) is arranged on the upper part of the inner side of the valve body (1) and is clamped with the valve body (1) in a sliding way, the single-hole valve seat (10) is of an internal hollow structure, the normally open valve seat (11) is arranged at the lower part of the inner side of the single-hole valve seat (10) and is in sliding connection with the single-hole valve seat (10), the normally open valve seat (11) is of an internal hollow structure, the normally open spring (12) is arranged at the lower part of the normally open valve seat (11) and is sleeved with the normally open valve seat (11), the lower part of the normally open spring (12) is abutted against the core iron body (7), and the normally open valve seat (11) is positioned in the valve body (1) and is arranged in parallel with the sealing gasket (8).

4. The solenoid valve with sealing assembly according to claim 1, characterized in that the normally closed end assembly (4) comprises a double-hole valve seat (13) and a normally closed valve seat (14), the double-hole valve seat (13) is arranged at the lower part of the inner side of the valve body (1) and is in sliding clamping connection with the valve body (1), the normally closed valve seat (14) is arranged at the upper part of the double-hole valve seat (13) and is in embedded connection with the double-hole valve seat (13), and the normally closed valve seat (14) is positioned inside the valve body (1) and is juxtaposed with the sealing gasket (8).

5. Solenoid valve with sealing assembly according to claim 1, characterised in that said sealing assembly (5) comprises a sealing gas spring (15) and a sealing block (16), the two gas sealing springs (15) are symmetrically arranged on the side wall of the single-hole valve seat (10) and are embedded and connected with the side wall of the single-hole valve seat (10), the number of the sealing blocks (16) is two, the two sealing blocks (16) are respectively arranged at the inner sides of the two sealing gas springs (15) and are fixedly connected with the sealing gas springs (15), the cross section of the sealing block (16) is semicircular, two sealing blocks (16) can be combined into a circular block to be used for sealing a hollow passage inside the single-hole valve seat (10), the sealing assembly (5) penetrates through the side wall of the single-hole valve seat (10), and the sealing assembly (5) is located on the inner side of the valve body (1).

6. The electromagnetic valve with the sealing assembly according to claim 1, wherein the buffer assembly (6) is used for buffering the core iron assembly (2) and the normally open end assembly (3), the buffer assembly (6) comprises two buffer block sets (17) and buffer springs (18), the two buffer block sets (17) are respectively disposed on two sides of the interior of the valve body (1) and are slidably connected with the valve body (1), the buffer block set (17) is located between the core iron assembly (2) and the normally open end assembly (3), the buffer block set (17) is composed of two symmetrically disposed buffer blocks, two mounting grooves are disposed at corresponding positions of the two buffer blocks, the number of the buffer springs (18) is two, and the two buffer springs (18) are respectively fixedly connected with the two buffer block sets (17) through the two mounting grooves, the upper end and the lower end of the buffer spring (18) are respectively fixedly connected with the corresponding buffer blocks.

7. The solenoid valve with sealing assembly according to claim 1, further comprising an audible and visual alarm (19) for detecting a leakage condition of the valve body (1), wherein the audible and visual alarm (19) is disposed at the connection of the normally open end assembly (3) and the valve body (1) and is in sealing connection with the valve body (1).

8. The solenoid valve with the sealing assembly according to claim 1, further comprising two rubber gaskets (20), wherein two of the rubber gaskets (20) are respectively disposed at the lower end of the single-hole valve seat (10) and the upper end of the double-hole valve seat (13), and the two rubber gaskets (20) are respectively connected with the single-hole valve seat (10) and the double-hole valve seat (13) in a sealing manner.

9. The solenoid valve with a sealing assembly according to claim 1, further comprising a normally-open end outlet (21), a normally-closed end outlet (22) and a normally-closed end inlet (23), wherein the normally-open end outlet (21) is arranged at the upper end of the single-hole valve seat (10), the normally-closed end outlet (22) is arranged at one side of the lower end of the double-hole valve seat (13) and communicated with the interior of the valve body (1), the normally-closed end inlet (23) is arranged at the other side of the lower end of the double-hole valve seat (13), and the normally-open end outlet (21), the normally-closed end outlet (22) and the normally-closed end inlet (23) are respectively connected with other components through pipelines.

10. The solenoid valve with a sealing assembly according to claim 3, wherein the single-hole valve seat (10) is provided with a boss at the upper end, the outer side of the boss is provided with external threads, and the single-hole valve seat (10) is connected with other components through the threads on the outer side of the boss.

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