CN113606358B

CN113606358B - Electromagnetic integrated valve

Info

Publication number: CN113606358B
Application number: CN202110995520.0A
Authority: CN
Inventors: 王斌; 胡浩迪; 叶晨; 许冬东
Original assignee: Easun Pneumatic Science and Technology Co Ltd
Current assignee: Easun Pneumatic Science and Technology Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2024-06-07
Anticipated expiration: 2041-08-27
Also published as: CN113606358A

Abstract

The application provides an electromagnetic integrated valve, which comprises a valve body assembly, a push rod assembly and an electromagnetic coil assembly, wherein a valve cavity is formed between the valve body and a push rod seat; a core cavity is formed between the valve body and the electromagnetic coil; the valve rod assembly is arranged in the valve body cavity and divides the valve body cavity into a first valve cavity, a second valve cavity and a third valve cavity; the iron core cavity close to one side of the valve body assembly is a fourth valve cavity, and the movable iron core is movably arranged in the iron core cavity; the electromagnetic integrated valve further comprises a first channel and a second channel, an air passage of the first channel is connected with the air inlet of the valve body and the third valve cavity, and the other air passage of the first channel is connected with the air inlet of the valve body and the fourth valve cavity; the second passage connects the first valve chamber and the fourth valve chamber. The electromagnetic integrated valve has interlocking protection and higher reliability; the valve body structure and the passage design are compact, and the valve has good waterproof and dustproof effects.

Description

Electromagnetic integrated valve

Technical Field

The invention relates to the technical field of pneumatic elements, in particular to an electromagnetic integrated valve with high reliability and an interlocking protection function.

Background

The gas circuit control valve is widely applied to fluid control in various technical fields, has more application occasions and is various in the current market. When the working port is switched or cut off, the conventional gas circuit control valve has no protection or interlocking function, and when a user operates by mistake or fails, the working gas circuit is switched by mistake or cannot keep a switching state, so that the normal use and the reliability of a product are affected; after a period of use, it is susceptible to failure due to mechanical failure.

Thus, the solenoid integrated valve of the prior art has a place to be lifted.

Disclosure of Invention

Aiming at the defects, the invention aims to provide an electromagnetic integrated valve with high reliability and interlocking protection function so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The electromagnetic integrated valve comprises a valve body assembly, a push rod assembly and an electromagnetic coil assembly, wherein the push rod assembly is arranged on the valve body assembly, and a valve cavity is formed between the valve body and a push rod seat; the electromagnetic coil assembly is arranged on the valve body assembly, and a core cavity is formed between the valve body and the electromagnetic coil; the valve rod assembly is arranged in the valve body cavity and divides the valve body cavity into a first valve cavity, a second valve cavity and a third valve cavity in sequence, and the first valve cavity is a valve body cavity close to one side of the ejector rod assembly; the iron core cavity close to one side of the valve body assembly is a fourth valve cavity, and the movable iron core is movably arranged in the iron core cavity; the electromagnetic integrated valve further comprises a first channel and a second channel, an air passage of the first channel is connected with the air inlet of the valve body and the third valve cavity, and the other air passage of the first channel is connected with the air inlet of the valve body and the fourth valve cavity; the second passage connects the first valve chamber and the fourth valve chamber.

According to the electromagnetic integration valve of the preferred embodiment of the application, the electromagnetic integration valve further comprises a third channel, a dust cover and a sealing piece, wherein the third channel is connected with the exhaust port of the valve body and the second valve cavity; the sealing piece is arranged on the exhaust port, and the dust cover is arranged on the outer side of the sealing piece.

According to the electromagnetic integrated valve of the preferred embodiment of the application, the ejector rod assembly further comprises a first sealing ring, a steel sleeve, a second sealing ring and an ejector rod, wherein the ejector rod comprises a flange part protruding radially and a rod body; the first sealing ring and the steel sleeve are arranged in the seat hole of the ejector rod seat, after assembly, the flange part of the ejector rod is positioned in the first valve cavity, the rod body of the ejector rod is inserted into and connected with the seat hole of the ejector rod seat, the first sealing ring and the steel sleeve, and the rod body of the ejector rod protrudes out of the seat hole of the ejector rod seat; the second sealing ring is sleeved on the outer surface of the ejector rod seat.

According to the electromagnetic integrated valve of the preferred embodiment of the application, the valve body assembly comprises a first spring, the valve rod assembly comprises a valve rod, one end of the valve rod, which faces the third valve cavity, is provided with a spring groove, one end of the first spring is arranged in the spring groove, and the other end of the first spring is connected with the cavity wall of the third valve cavity.

According to the electromagnetic integrated valve of the preferred embodiment of the application, the electromagnetic coil assembly further comprises a cover plate, a static iron core, a guide sleeve, a second spring, a first sealing plug and a second sealing plug, wherein the guide sleeve is arranged in the iron core cavity, and the static iron core is arranged in the guide sleeve in an interference manner; the movable iron core is movably arranged in the guide sleeve; the second sealing plug is arranged at one end of the movable iron core, which faces the static iron core; the first sealing plug is arranged at the other end of the movable iron core; the outer surface of the movable iron core, which faces one end of the valve body, is provided with a spring arc part, and the second spring is arranged on the spring arc part; the cover plate is arranged on the electromagnetic coil.

According to the electromagnetic integration valve of the preferred embodiment of the application, the electromagnetic integration valve further comprises a fourth channel, the cover plate is provided with a groove channel, the static iron core is provided with a middle through hole, one opening end of the middle through hole is movably connected with the second sealing plug, and the other opening end of the middle through hole is connected with the groove channel through a gas circuit; the electromagnetic coil is provided with a coil through hole, one end of the coil through hole is connected with the groove channel, and the other end of the coil through hole is connected with a connecting channel which is connected with the third channel on the valve body; the fourth channel is a channel which is connected with the fourth valve cavity, the middle through hole of the static iron core, the groove channel of the cover plate, the coil through hole of the electromagnetic coil and the connecting channel of the valve body, wherein the connecting channel is connected with the third channel.

The key idea of the application is that an electromagnetic integrated valve is manufactured, and the electromagnetic integrated valve has interlocking protection when a working port is switched to a working state, is higher in reliability, can not fail due to misoperation or faults of a user such as ejector rod clamping stagnation, ensures that the control valve works stably, is compact in valve body structure and passage design, has good waterproof and dustproof effects, and is stronger in environment adaptability, more stable and reliable in working and longer in service life.

Due to the adoption of the technical characteristics, compared with the prior art, the invention has the following advantages and positive effects:

The electromagnetic integrated valve has interlocking protection and higher reliability, and can achieve the effect of combining two products by only using one valve body structure;

secondly, the valve body structure and the passage design are compact, the one-way air inlet and exhaust is realized, the waterproof and dustproof effects are good, and the installation is convenient;

Thirdly, the valve body has stronger adaptive capacity to environment, more stable and reliable work and longer service life;

Fourth, the application adds the electric control design, when the product has mechanical failure, the product can still meet the use requirement, and the reliability is improved.

Of course, it is not necessary for any one embodiment to practice the teachings of the present invention to have all of the above described advantages.

Drawings

FIG. 1 is a schematic view of the present application;

FIG. 2 is a first cross-sectional schematic view of the present application;

FIG. 3 is a second cross-sectional schematic view of the present application;

FIG. 4 is a third cross-sectional schematic view of the present application;

FIG. 5 is a fourth cross-sectional schematic of the present application;

fig. 6 is an enlarged schematic view of the solenoid assembly of fig. 4.

Detailed Description

Several preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, but the present invention is not limited to these embodiments only. The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, and so forth have not been described in detail so as not to unnecessarily obscure aspects of the present invention.

Referring to fig. 1 and 2, the first schematic cross-section is a schematic connection cross-section of a ram assembly and a valve body assembly, the electromagnetic integrated valve of the present application includes a valve body assembly 3, a ram assembly 4 and an electromagnetic coil assembly 9, the ram assembly 4 is disposed on the valve body assembly 3, the valve body assembly 3 includes a valve body 31, the ram assembly 4 includes a ram seat 40, and a valve cavity is formed between the valve body 31 and the ram seat 40, in this embodiment, the ram assembly 4 is locked on the valve body assembly 3 by a nut, in order to ensure air tightness between the ram assembly 4 and the valve body assembly 3, a fifth sealing ring 7 is added to improve air tightness, and waterproof and dustproof can be performed; the electromagnetic coil assembly 9 is disposed on the valve body assembly 3, and a core cavity is formed between the valve body 31 and the electromagnetic coil 92, and in the embodiment of the present application, the electromagnetic coil assembly 9 is locked on the valve body assembly 3 by a nut.

In fig. 2, the valve rod assembly 6 is disposed in the valve cavity, and divides the valve cavity into a first valve cavity 18, a second valve cavity 19 and a third valve cavity 20 in sequence, wherein the first valve cavity 18 is a valve cavity near one side of the ejector rod assembly 4; as shown in the figure, the valve rod assembly 6 includes a valve rod 60, a support ring 61, a third seal ring 62, a fourth seal ring 63, and a support ring 64, wherein the support ring 61 and the support ring 64 are respectively sleeved at two ends of the valve rod 60 for supporting the valve rod 60; the third seal ring 62 and the fourth seal ring 63 are sleeved on the valve rod 60 to divide the valve body cavity into a first valve cavity 18, a second valve cavity 19 and a third valve cavity 20. In addition, referring to fig. 4, which is a schematic diagram of a third cross section of the electromagnetic coil assembly and the valve body assembly, in which the core cavity near one side of the valve body assembly 3 is a fourth valve cavity 21, and the movable iron core 14 is movably disposed in the core cavity, in this embodiment of the present application, a groove is formed on the valve body 31 of the valve body assembly 3 for forming the core cavity with the electromagnetic coil 92, but the present application is not limited thereto, for example, the valve body 31 is not provided with a groove but the core cavity is formed on the electromagnetic coil 92, so long as the purpose of accommodation can be achieved, which is the protection scope of the present application.

Referring to fig. 2 and fig. 4, the electromagnetic integrated valve further includes a first channel a and a second channel B, an air path of the first channel a connects the air inlet 1 of the valve body 31 and the third valve cavity 20, in fig. 2, the third valve cavity 20 is connected to the working port 2, when receiving a command of working, pressurized air enters from the air inlet 1 to the third valve cavity 20, and then is transmitted from the working port 2; the other air passage of the first passage a connects the air inlet 1 of the valve body 31 and the fourth valve chamber 21, so that the air coming in from the air inlet 1 is led to the third valve chamber 20 and the fourth valve chamber 21, respectively; in the embodiment of the present application, the air passage leading to the fourth valve cavity 21 is formed from the connecting passage between the air inlet 1 and the third valve cavity 20; furthermore, the second passage B connects the first valve chamber 18 and the fourth valve chamber 21.

Referring to fig. 3 and fig. 4, fig. 3 is a second schematic cross-sectional view of the present application, which is also a schematic cross-sectional view of a connection between the stem assembly and the valve body assembly in another section, the electromagnetic integrated valve further includes a third channel C, a dust cap 16, and a sealing plate 17, where the third channel C connects the exhaust port 22 of the valve body 31 and the second valve cavity 19; the sealing piece 17 is arranged on the exhaust port 22, the dust cover 16 is arranged outside the sealing piece 17, and the dust cover 16 and the sealing piece 17 are used for preventing foreign matters from entering the electromagnetic integrated valve of the application through the exhaust port 22; when the working port 2 and the second valve chamber 19 are in communication, gas flows from the working port 2 to the second valve chamber 19 and is discharged from the exhaust port 22 through the third passage C.

Referring to fig. 2, the ejector rod assembly 4 of the present application further includes a first sealing ring 41, a steel sleeve 42, a second sealing ring 43, and an ejector rod 5, where the ejector rod 5 includes a radially protruding flange portion and a rod body; as shown in the figure, the first sealing ring 41 and the steel sleeve 42 are disposed in the seat hole of the ejector rod seat 40, the first sealing ring 41 is sealed with the side wall of the seat hole of the ejector rod seat 40, so that the first sealing ring is isolated from the atmosphere, after being assembled, the flange portion of the ejector rod 5 is located in the first valve cavity 18, the rod body of the ejector rod 5 is inserted into and connected with the seat hole of the ejector rod seat 40, the first sealing ring 41 and the steel sleeve 42, and the rod body of the ejector rod 5 protrudes out of the seat hole of the ejector rod seat 40, so that the protruding purpose is to facilitate manual operation of the ejector rod 5; the second sealing ring 43 is sleeved on the outer surface of the ejector rod seat 40 and is used for airtight function when being connected with other connecting pieces.

As shown in fig. 2, the valve body assembly 3 includes a first spring 8, a spring groove is formed at one end of the valve rod 60 of the valve rod assembly 6 facing the third valve cavity 20, one end of the first spring 8 is disposed in the spring groove, the other end of the first spring 8 is connected with the cavity wall of the third valve cavity 20, after assembly, the first spring 8 is in a pressed state, and the first spring 8 pushes the valve rod 60 toward the push rod 5, so that the valve rod 60 and the push rod 5 are in contact connection.

Referring to fig. 4, fig. 5 and fig. 6, fig. 5 is a schematic cross-sectional view of a fourth cross-section of the present application, and is a schematic cross-sectional view of a connection between a ram assembly and a valve body assembly at another position, the electromagnetic coil assembly 9 further includes a cover plate 10, a static iron core 12, a guide sleeve 13, a second spring 15, a first sealing plug 142 and a second sealing plug 143, the guide sleeve 13 is disposed in the core cavity, the static iron core 12 is disposed in the guide sleeve 13 in an interference manner so that the static iron core 12 cannot move, in the embodiment of the present application, the static iron core 12 is not completely inserted into the guide sleeve 13, but a part of the static iron core 12 is in interference connection with a cavity wall of the core cavity, but the present application is not limited thereto; the movable iron core 14 is movably arranged in the guide sleeve 13, and the movable design of the movable iron core 14 enables the movable iron core 14 to move towards the static iron core 12 under the action of magnetic attraction; the second sealing plug 143 is disposed at an end of the movable iron core 14 facing the stationary iron core 12; the first sealing plug 142 is disposed at the other end of the movable iron core 14, and plugs are designed at both ends of the movable iron core 14, as shown in fig. 4, when the movable iron core 14 moves upward, the first sealing plug 142 can plug the first channel a, and when the movable iron core 14 moves downward, the second sealing plug 143 can plug the static iron core 12; the outer surface of the movable iron core 14 facing one end of the valve body 31 is provided with a spring arc portion, the second spring 15 is disposed at the spring arc portion, in fig. 6, it can be seen that the upper portion of the spring arc portion is a flat surface, and the connection manner of the second spring 15 is as follows: one end of the second spring 15 abuts against the upper flat surface of the spring arc part, and the other end of the second spring 15 abuts against the end surface of the guide sleeve 13, so that the second spring 15 is in a pressing state when the movable iron core 14 moves downwards under the magnetic attraction, and the restoring force of the second spring 15 can drive the movable iron core 14 to move upwards when the magnetic attraction disappears; in the embodiment of the present application, the cover plate 10 is locked on the electromagnetic coil 92 by a nut, and a sixth sealing ring 11 is disposed between the cover plate 10 and the electromagnetic coil 92, where the sixth sealing ring 11 is sealed from the outside atmosphere, so as to ensure good tightness and waterproof and dustproof effects, and in addition, a seventh sealing ring 121 and an eighth sealing ring 141 are designed, so as to ensure sealing performance and prevent gas leakage of the fourth valve chamber 21.

Referring to fig. 3,4 and 5, the electromagnetic integrated valve further includes a fourth channel D, the cover plate 10 is provided with a groove channel, the static iron core 12 is provided with a middle through hole, an opening end of the middle through hole is movably connected with the second sealing plug 143, and another opening end of the middle through hole is connected with the groove channel in an air way, that is, when the second sealing plug 143 is driven downward by the movable iron core 14, the second sealing plug 143 plugs the opening end of the upper end of the middle through hole, otherwise, when the second sealing plug 143 moves upward, air flow can flow downward through the middle through hole; the electromagnetic coil 92 is provided with a coil through hole, the coil through hole is a through hole marked with D in fig. 5, one end of the coil through hole is connected with the groove channel, and the other end of the coil through hole is connected with a connecting channel on the valve body 31, which is connected with the third channel C; the fourth passage D is a passage connecting the fourth valve chamber 21, the middle through hole of the static iron core 12, the groove passage of the cover plate 10, the coil through hole of the electromagnetic coil 92, and the connecting passage of the valve body 31, which is to say, the air flow flowing through the fourth passage D is: the gas flows from the fourth valve chamber 21 to the middle through hole of the static iron core 12, passes through the middle through hole, enters the groove channel of the cover plate 10, passes through the groove channel, enters the coil through hole of the electromagnetic coil 92, passes through the coil through hole, enters the connecting channel of the valve body 31, passes through the connecting channel, enters the third channel C, and is discharged from the exhaust port 22. In fig. 5, to ensure the tightness of the electromagnetic coil assembly 9 and the valve body assembly 3, an eighth seal ring 91 is designed to prevent the leakage of the gas. The first channel a, the second channel B, the third channel C and the fourth channel D described above are all gas paths for the flow of gas in the present application.

The following describes the operation state of the electromagnetic integrated valve of the present application:

When the working port 2 is required to work, compressed air enters the valve body 31 through the air inlet 1, passes through the first channel A, passes through the third valve cavity 20 and is discharged through the working port 2 to perform work.

When the working port 2 is required to be cut off, only the ejector rod 5 is pressed down to enable the valve rod assembly 6 to compress the first spring 8 to move, and the third valve cavity 20 is disconnected from the working port 2, so that the working port 2 loses air supply to stop working, and the gas of the working port 2 passes through the third channel C through the second valve cavity 19 and then is discharged through the exhaust port 22; at this time, the air in the first valve cavity 18 passes through the second passage B and the fourth passage D, and then passes through the third passage C to reach the exhaust port 22 to be exhausted.

In order to prevent misoperation, the ejector rod 5 is pressed down and the electromagnetic coil 92 is electrified, the movable iron core 14 is attracted with the static iron core 12 under the action of the magnetic field force of the electromagnetic coil 92, at the moment, the second sealing plug 143 on the movable iron core 14 seals the fourth channel D, the first channel A and the second channel B are opened, meanwhile, the second channel B is disconnected with the third channel C, at the moment, compressed air reaches the fourth valve cavity 21 through the first channel A and then reaches the first valve cavity 18 through the second channel B, the valve rod assembly 6 overcomes the downward movement of the first spring 8 under the action of air pressure, so that the working port 2 is disconnected with the third valve cavity 20 and the air inlet 1, and the gas of the working port 2 is discharged through the third channel C through the second valve cavity 19 and then through the air outlet 22.

If the ejector rod 5 is not pressed at this time, the working port 2 can still be guaranteed to be in a cut-off state under the condition that the electromagnetic coil 92 is electrified, so that the problem that the working port 2 cannot be cut off due to the fact that the clamping stagnation of the ejector rod 5 is not operated is avoided. When the work port 2 needs to be restored to work, the electromagnetic coil 92 is powered off, the valve rod assembly 6 is reset under the action of the first spring 8, gas between the first valve cavity 18 and the fourth valve cavity 21 is discharged through the fourth channel D and the third channel C and then through the exhaust port 22, and meanwhile, the second valve cavity 19 is discharged from the third channel C through the exhaust port 22 under the air pressure.

In summary, due to the adoption of the technical characteristics, compared with the prior art, the invention has the following advantages and positive effects:

The preferred embodiments of the invention are provided only to help illustrate the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof. The foregoing description of the preferred embodiments of the present invention is provided for illustration only, and is not intended to be limiting, since various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The electromagnetic integrated valve is characterized by comprising a valve body assembly, a push rod assembly and an electromagnetic coil assembly, wherein the push rod assembly is arranged on the valve body assembly, and a valve cavity is formed between the valve body and a push rod seat; the electromagnetic coil assembly is arranged on the valve body assembly, and a core cavity is formed between the valve body and the electromagnetic coil;

The valve rod assembly is arranged in the valve body cavity and divides the valve body cavity into a first valve cavity, a second valve cavity and a third valve cavity in sequence, and the first valve cavity is a valve body cavity close to one side of the ejector rod assembly; the iron core cavity close to one side of the valve body assembly is a fourth valve cavity, and the movable iron core is movably arranged in the iron core cavity;

The electromagnetic integrated valve further comprises a first channel and a second channel, an air passage of the first channel is connected with the air inlet of the valve body and the third valve cavity, and the other air passage of the first channel is connected with the air inlet of the valve body and the fourth valve cavity; the second passage is connected with the first valve cavity and the fourth valve cavity;

The ejector rod assembly further comprises a first sealing ring, a steel sleeve, a second sealing ring and an ejector rod, wherein the ejector rod comprises a flange part protruding radially and a rod body; the first sealing ring and the steel sleeve are arranged in the seat hole of the ejector rod seat, after assembly, the flange part of the ejector rod is positioned in the first valve cavity, the rod body of the ejector rod is inserted into and connected with the seat hole of the ejector rod seat, the first sealing ring and the steel sleeve, and the rod body of the ejector rod protrudes out of the seat hole of the ejector rod seat; the second sealing ring is sleeved on the outer surface of the ejector rod seat;

The electromagnetic coil assembly further comprises a cover plate, a static iron core, a guide sleeve, a second spring, a first sealing plug and a second sealing plug, wherein the guide sleeve is arranged in the iron core cavity, and the static iron core is arranged in the guide sleeve in an interference manner; the movable iron core is movably arranged in the guide sleeve; the second sealing plug is arranged at one end of the movable iron core, which faces the static iron core; the first sealing plug is arranged at the other end of the movable iron core; the outer surface of the movable iron core, which faces one end of the valve body, is provided with a spring arc part, and the second spring is arranged on the spring arc part; the cover plate is arranged on the electromagnetic coil;

The electromagnetic integrated valve further comprises a fourth channel, the cover plate is provided with a groove channel, the static iron core is provided with a middle through hole, one opening end of the middle through hole is movably connected with the second sealing plug, and the other opening end of the middle through hole is connected with the groove channel through a gas circuit; the electromagnetic coil is provided with a coil through hole, and one end of the coil through hole is connected with the groove channel; the electromagnetic integrated valve further comprises a third channel, the third channel is connected with the exhaust port of the valve body and the second valve cavity, and the other end of the coil through hole is connected with a connecting channel connected with the third channel on the valve body; the fourth channel is a channel which is connected with the fourth valve cavity, the middle through hole of the static iron core, the groove channel of the cover plate, the coil through hole of the electromagnetic coil and the connecting channel of the valve body, wherein the connecting channel is connected with the third channel.

2. The electromagnetically integrated valve as claimed in claim 1, further comprising a dust cap and a sealing sheet; the sealing piece is arranged on the exhaust port, and the dust cover is arranged on the outer side of the sealing piece.

3. The electromagnetically integrated valve as claimed in claim 2, wherein the valve body assembly includes a first spring, the valve stem assembly includes a valve stem, an end of the valve stem facing the third valve chamber is provided with a spring groove, one end of the first spring is provided in the spring groove, and the other end of the first spring is connected to a chamber wall of the third valve chamber.