CN113606359A - Electromagnetic integrated reversing valve with reversing protection - Google Patents
Electromagnetic integrated reversing valve with reversing protection Download PDFInfo
- Publication number
- CN113606359A CN113606359A CN202110995496.0A CN202110995496A CN113606359A CN 113606359 A CN113606359 A CN 113606359A CN 202110995496 A CN202110995496 A CN 202110995496A CN 113606359 A CN113606359 A CN 113606359A
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- valve body
- cavity
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- ejector rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0704—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising locking elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1223—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being acted upon by the circulating fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
- F16K35/025—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element said actuating element being operated manually (e.g. a push-button located in the valve actuator)
Abstract
The invention provides an electromagnetic integrated reversing valve with reversing protection, which comprises a push rod assembly, a valve body assembly, a pilot valve body and an electromagnetic coil assembly, wherein the valve body assembly comprises a valve body and a valve rod assembly; the valve body is provided with a valve body cavity, and the valve rod assembly is arranged in the valve body cavity; the pilot valve body is arranged between the valve body assembly and the electromagnetic coil assembly, a piston cavity is formed in the connecting position of the pilot valve body and the valve body cavity, and the piston of the valve rod assembly is arranged in the piston cavity. The electromagnetic integrated reversing valve has reversing protection and higher reliability, and can realize multiple control modes.
Description
Technical Field
The invention relates to the technical field of pneumatic elements, in particular to an electromagnetic integrated reversing valve with high reliability and a reversing protection function.
Background
The gas circuit control valve is widely applied to fluid control in various technical fields, and has more application occasions and various gas valves in the current market. Along with the continuous increase of control gas circuit, more and more control valve become the multichannel gas circuit, but current multichannel control valve is when switching the working connection, because of it does not have protection or locking function, when user's maloperation or trouble, causes the working gas circuit mistake to switch or can't keep switching state to influence the normal use and the reliability of product.
Therefore, the prior art solenoid integrated directional valve has a place to lift.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide an integrated electromagnetic directional valve with high reliability, multiple air inlets or working ports, convenience for connection of multiple air paths, and a directional protection interlock protection function, so as to solve the problems of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the electromagnetic integrated reversing valve comprises a mandril assembly, a valve body assembly, a pilot valve body and an electromagnetic coil assembly, wherein the valve body assembly comprises a valve body and a valve rod assembly; the valve body is provided with a valve body cavity, and the valve rod assembly is arranged in the valve body cavity; the pilot valve body is arranged between the valve body assembly and the electromagnetic coil assembly, a piston cavity is formed in the position where the pilot valve body is connected with the valve body cavity, a piston of the valve rod assembly is arranged in the piston cavity, the pilot valve body and the electromagnetic coil assembly form an iron core cavity, and the iron core cavity close to one side of the pilot valve body is a third valve cavity; the electromagnetic integrated reversing valve further comprises a first channel, a second channel and a third channel, wherein an air inlet of the valve body is respectively connected with a first working port and the ejector rod cavity through an air path, one end of the first channel is connected with the ejector rod cavity, the other end of the first channel is connected with the valve body cavity, one end of the second channel is connected with the air path between the air inlet and the first working port, and the other end of the second channel is connected with the third valve cavity; the third passage connects the third valve chamber and the piston chamber.
According to the electromagnetic integrated reversing valve with the reversing protection, the valve rod assembly divides the valve body cavity into a first valve cavity and a second valve cavity; the first valve cavity is connected with a second working port, and the second valve cavity is connected with a third working port; the valve body assembly further comprises a rear cover and a first spring, the rear cover is connected with the opening of the valve body cavity in a covering mode, and two ends of the first spring are connected with the rear cover and the valve rod assembly respectively.
According to the electromagnetic integrated reversing valve with reversing protection, the ejector rod assembly comprises an ejector rod, an ejector rod seat, an ejector rod valve rod, a third spring, a stop pin, a lower stop block, a spacer bush, an ejector rod sealing ring and an upper stop block, wherein the lower stop block, the spacer bush, the ejector rod sealing ring and the upper stop block are sequentially arranged in the ejector rod cavity, and the ejector rod valve rod is inserted and connected with the lower stop block, the spacer bush, the ejector rod sealing ring and the upper stop block; the ejector rod is arranged on the ejector rod seat, one end of the ejector rod valve rod is connected with the ejector rod, the other end of the ejector rod valve rod is provided with a spring groove, one end of the third spring is connected with the spring groove, and the other end of the third spring abuts against and is connected with the stepped part of the first channel.
According to the electromagnetic integrated reversing valve with the reversing protection, the electromagnetic coil assembly further comprises an electromagnetic coil, 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, facing the static iron core, of the movable iron core, and the first sealing plug is arranged at the other end of the movable iron core; one end of the movable iron core facing the pilot valve body is provided with a spring arc part, and the second spring is arranged at the spring arc part; the cover plate is arranged on the electromagnetic coil.
According to the electromagnetic integrated reversing valve with the reversing protection, the electromagnetic integrated reversing valve further comprises a fourth channel, the pilot valve body is provided with a control port, the cover plate is provided with a groove channel, the static iron core is provided with a middle through hole, one open end of the middle through hole is movably connected with the second sealing plug, and the other open 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 control port and is arranged on the pilot valve body; the fourth channel is a channel which is connected with the third 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 pilot valve body and is connected with the connecting channel of the control port.
According to the electromagnetic integrated reversing valve with the reversing protection, the valve body further comprises a first exhaust port, a second exhaust port and an exhaust channel, and the exhaust channel is connected with the third working port, the piston cavity and the second exhaust port; the first exhaust port is connected with the second working port through an air path.
The core thought of this application lies in, makes an integrated switching-over valve of electromagnetism, has a plurality of workplaces, makes things convenient for the multi-pipe-line connection to use to can realize multiple control mode, have the switching-over protection after switching the workplace, the reliability is higher, can not cause the switching-over to become invalid because of the maloperation, makes control valve job stabilization, and valve body structure, route design are compact moreover, have good waterproof dustproof effect, stronger to environment adaptability, work is more stable, reliable, the life-span is longer.
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 reversing valve has reversing protection, is higher in reliability and can realize multiple control modes;
secondly, the valve body has compact structure and passage design, has good waterproof and dustproof functions and is convenient to install;
third, this application valve body is stronger to environmental suitability, and work is more stable, reliable, the life-span is longer.
Of course, it is not necessary for any particular embodiment of the inventive concept to be implemented to achieve all of the above technical effects at the same time.
Drawings
FIG. 1 is a schematic view of the present application;
FIG. 2 is a first cross-sectional view of the present application;
FIG. 3 is a partially enlarged view of FIG. 2;
FIG. 4 is an enlarged view of another portion of FIG. 2;
FIG. 5 is an enlarged view of a further portion of FIG. 2;
FIG. 6 is a second cross-sectional view of the present application;
FIG. 7 is a third cross-sectional view of the present application;
FIG. 8 is a fourth cross-sectional view of the present application.
Detailed Description
Several preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to only these embodiments. The invention is intended to cover alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the invention. In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention, and it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, 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 fig. 2, an appearance schematic diagram and a first cross-sectional schematic diagram of the present application, the present application is an electromagnetic integrated reversing valve with reversing protection, the electromagnetic integrated reversing valve includes a tappet assembly 3, a valve body assembly 5, a pilot valve body 6 and an electromagnetic coil assembly 7, the valve body assembly 5 includes a valve body 51 and a valve rod assembly 12, the tappet assembly 3 is disposed on the valve body 51, and a tappet cavity 27 is formed between the valve body 51 and the tappet assembly 3; in the embodiment of the application, ejector pin subassembly 3 is in with the nut lock pay on valve body subassembly 5, in order to guarantee ejector pin subassembly 3 with gas tightness between the valve body subassembly 5 can increase the sealing washer and promote airtight performance to can carry out waterproof dustproof.
In addition, referring to fig. 3 and 4, the valve body 51 is provided with a valve body cavity, the valve rod assembly 12 is arranged in the valve body cavity, the valve body cavity is divided into a first valve cavity 511 and a second valve cavity 512 by a single sealing ring, a plurality of sealing rings and a support ring which are arranged on the valve rod assembly 12, and the sealing rings ensure the sealing performance and the movement flexibility; the pilot valve body 6 is arranged between the valve body assembly 5 and the electromagnetic coil assembly 7, a piston cavity 513 is formed in the position where the pilot valve body 6 is connected with the valve cavity, the piston 11 of the valve rod assembly 12 is arranged in the piston cavity 513, the pilot valve body 6 and the electromagnetic coil assembly 7 form a core cavity 514, and the core cavity 514 close to one side of the pilot valve body 6 is a third valve cavity 5141.
In addition, the electromagnetic integrated reversing valve in fig. 2 further includes a first channel a, a second channel B and a third channel C, the air inlet 1 of the valve body 51 is respectively connected with the first working port 2 and the ejector rod cavity 27 through air passages, one end of the first channel a is connected with the ejector rod cavity 27, the other end of the first channel a is connected with the valve body cavity, one end of the second channel B is connected with the air passage between the air inlet 1 and the first working port 2, and the other end of the second channel B is connected with the third valve cavity 5141; the third passage C connects the third valve chamber 5141 and the piston chamber 513.
Referring to fig. 3, the first valve chamber 511 is connected to the second working port 22, and the second valve chamber 512 is connected to the third working port 21; the valve body assembly 5 further comprises a rear cover 13 and a first spring 14, the rear cover 13 covers an opening connected with the valve body cavity, and two ends of the first spring 14 are respectively connected with the rear cover 13 and the valve rod assembly 12. As shown in the figure, valve rod assembly 12 one end is passed through first spring 14 offsets with back lid 13 inner wall, be equipped with the sealing washer on the back lid 13 and through the screw with valve body 51 is connected, the valve rod assembly 12 other end with 11 bottom surfaces of piston offset, piston 11 sets up in the piston chamber 513 to be equipped with Y type sealing washer 111 with piston chamber 513 lateral wall is sealed, thereby makes third passageway C and first passageway A seal, valve rod assembly 12 moves to the right under the effect of first spring 14, makes second working port 22 communicate with each other with first working port 2 and air inlet 1, and third working port 21 seals with first working port 2 and air inlet 1.
Referring to fig. 5, the ejector rod assembly 3 includes an ejector rod 24, an ejector rod seat 20, an ejector rod valve rod 23, a third spring 15, a stop pin 26, a lower stop 16, a spacer 17, an ejector rod sealing ring 18, and an upper stop 19, the lower stop 16, the spacer 17, the ejector rod sealing ring 18, and the upper stop 19 are sequentially disposed in the ejector rod cavity 27, and the ejector rod valve rod 23 is inserted into and connected with the lower stop 16, the spacer 17, the ejector rod sealing ring 18, and the upper stop 19; the ejector rod 24 is arranged on the ejector rod seat 20, the ejector rod 24 can be stressed and moved on the ejector rod seat 20, one end of the ejector rod valve rod 23 is connected with the ejector rod 24, the ejector rod valve rod 23 can move when being pressed by the ejector rod 24, the other end of the ejector rod valve rod 23 is provided with a spring groove, one end of the third spring 15 is connected with the spring groove, and the other end of the third spring 15 abuts against and is connected with the step part of the first channel A. The ejector rod seat 20 and the valve body 51 are connected through screws and are waterproof and dustproof through sealing rings. One end of the push rod valve rod 23 is abutted against the push rod 24 under the action of the third spring 15, the other end of the push rod 24 protrudes out of the surface of the push rod seat 20, and the push rod 24 is provided with a sealing ring, so that good sealing performance is ensured. The spacer 17 and the ejector rod valve rod 23 are provided with small holes, when the ejector rod 24 moves downwards to enable the ejector rod valve rod 23 to compress the third spring 15 to move, the spacer 17 is disconnected from the small holes in the ejector rod valve rod 23, and the air inlet 1 and the first working port 2 are disconnected from the second working port 22. The valve body 51 is provided with the stop pin 26, the stop pin 26 is tightly matched with the mounting hole in the valve body 51, and in addition, the stop pin 26 is in transition fit with the upper mounting hole of the ejector rod seat 20, so that the mounting precision can be ensured, the structural strength can be improved, and the valve body is more stable and reliable when used under the high-frequency vibration working condition.
Referring to fig. 4, the electromagnetic coil assembly 7 further includes an electromagnetic coil 71, a cover plate 8, a stationary core 9, a movable core 10, a guide sleeve 92, a second spring 25, a first sealing plug 102 and a second sealing plug 101, the guide sleeve 92 is disposed in the core cavity 514, the stationary core 9 is disposed in the guide sleeve 92 in an interference manner so that the stationary core 9 does not move, in this embodiment, the stationary core 9 is not fully inserted into the guide sleeve 92, but a part of the stationary core 9 is in an interference manner with a cavity wall of the core cavity 514, and a guide sleeve sealing ring 91 is disposed on the stationary core 9 to seal with an inner wall of the guide sleeve 92, but cannot be used to limit the present application; the movable iron core 10 is movably arranged in the guide sleeve 92, and the movable iron core 10 is movably designed to move towards the static iron core 9 under the action of electromagnetic force; the second sealing plug 101 is arranged at one end of the movable iron core 10 facing the static iron core 9; the first sealing plug 102 is disposed at the other end of the movable iron core 10, and plugs are designed at both ends of the movable iron core 10, as shown in fig. 4, when the movable iron core 10 moves leftward, the first sealing plug 102 may plug the second channel B, and when the movable iron core 10 moves rightward, the second sealing plug 101 may plug the stationary iron core 9; a spring arc part is arranged at one end of the movable iron core 10 facing the pilot valve body 6, the second spring 25 is arranged at the spring arc part, and the connection mode of the second spring 25 is as follows: one end of the second spring is abutted against the upper flat surface of the arc part of the spring, and the other end of the second spring is abutted against the end surface of the guide sleeve 92, so that under the design, when the movable iron core 10 is moved rightwards by the electromagnetic force, the second spring 25 is in a pressing state, and when the electromagnetic force disappears, the restoring force of the second spring 25 can drive the movable iron core 10 to move leftwards; the cover plate 8 is arranged on the electromagnetic coil 71, in the embodiment of the application, the cover plate 8 is locked on the electromagnetic coil 71 by a nut, and a cover plate sealing ring 81 arranged on the cover plate 8 is sealed and isolated from the outside atmosphere, so that good sealing performance and waterproof and dustproof effects are ensured.
In addition, the electromagnetic integrated reversing valve further comprises a fourth channel D, the pilot valve body 6 is provided with a control port 4, the cover plate 8 is provided with a groove channel, the stationary core 9 is provided with a middle through hole, one open end of the middle through hole is movably connected with the second sealing plug 101, and the other open end of the middle through hole is in gas path connection with the groove channel, that is, when the second sealing plug 101 is driven by the movable core 10 to the right, the second sealing plug 101 plugs the open end of the upper end of the middle through hole, otherwise, when the second sealing plug 101 moves to the left, the air flow can flow through the middle through hole; the electromagnetic coil 71 is provided with a coil through hole, the coil through hole is a through hole marked with D on the electromagnetic coil 71 in fig. 6, 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 control port 4 on the pilot valve body 6; the fourth channel D is a channel connecting the third valve chamber 5141, the middle through hole of the stationary core 9, the groove channel of the cover plate 8, the coil through hole of the electromagnetic coil 71, and the connection channel of the pilot valve body 6 connected to the control port 4. As shown in fig. 4, the second spring 25 is disposed between the movable iron core 10 and the guide sleeve 92, the movable iron core 10 is movably disposed in the iron core cavity 514, and the first sealing plug 102 engaged with the second channel B and the second sealing plug 101 engaged with the fourth channel D are embedded in the movable iron core 10 to ensure good sealing performance; the movable iron core 10 is abutted against the second channel B under the action of the second spring 25, the second channel B is sealed, the second channel B and the third channel C are sealed, and the third channel C is communicated with the fourth channel D.
In addition, referring to fig. 6 and 7, the valve body 51 further includes a first exhaust port 32, a second exhaust port 31, and an exhaust passage G connecting the third working port 21, the piston chamber 513, and the second exhaust port 31; the first exhaust port 32 is in pneumatic communication with the second working port 22.
The working state of the electromagnetic integrated reversing valve of the application is described as follows:
when the air compressor is used, compressed air enters the valve body 51 through the air inlet 1, one part of the compressed air is discharged through the first channel A and the second working port 22 to work, the other part of the compressed air is discharged through the first working port 2 to work, and the last part of the compressed air reaches the pilot valve body 6 through the second channel B.
When the second working port 22 needs to be switched to the third working port 21, the control port 4 is ventilated, the piston 11 is pushed to move leftwards through the fourth channel D and the third channel C, the piston 11 pushes the valve rod assembly 12 to move leftwards against the first spring 14, the air inlet 1, the first working port 2 and the third working port 21 are communicated, the air inlet 1, the first working port 2 and the second working port 22 are disconnected, and as shown in fig. 8, air pressure of the second working port 22 is exhausted into the atmosphere from the exhaust port 32, so that reversing is completed. Meanwhile, when the piston 11 pushes the valve rod assembly 12 to move leftward against the first spring 14, air at the front end of the piston 11 passes through the exhaust passage G formed in the valve body 51 and is exhausted to the atmosphere through the exhaust port 31.
When the control port 4 is ventilated and the electromagnetic coil 71 is electrified simultaneously, the movable iron core 10 is attracted with the static iron core 9 under the action of the magnetic field force of the electromagnetic coil 71, at the moment, the second sealing plug 101 on the movable iron core 10 seals the fourth channel D, the third channel C and the fourth channel D are sealed, the second channel B is opened and is communicated with the third channel C, at the moment, compressed air passes through the second channel B and then pushes the piston 11 to move leftwards through the third channel C, the piston 11 pushes the valve rod assembly 12 to overcome the first spring 14 to move leftwards, so that the air inlet 1, the first working port 2 and the third working port 21 are communicated, the air inlet 1, the first working port 2 and the second working port 22 are disconnected, and the air pressure of the second working port 22 is exhausted into the atmosphere from the air outlet 32, so that the reversing is completed. If the control port 4 stops ventilation at this time, the third working port 21 is ensured to be still kept in the switching state under the condition that the electromagnetic coil 71 is electrified, and the problem that the third working port 21 cannot be switched due to the interruption of ventilation of the control port 4 is avoided. When the working ports need to be switched again, the electromagnetic coil 71 is powered off and ventilation to the control port 4 is stopped, at the moment, the valve rod assembly 12 is reset under the action of the first spring 14, gas between the piston 11 and the movable iron core 10 is exhausted from the control port 4 through the fourth channel D, and meanwhile, the gas pressure of the third working port 21 is exhausted into the atmosphere from the exhaust port 31.
In addition, when only the first working port 2 is required to exhaust air and the third working port 21 or the second working port 22 is not required to vent air, only the push rod 24 is required to be pressed down to enable the push rod valve rod 23 to compress the third spring 15 to move, the spacer 17 is disconnected from the small hole formed in the push rod valve rod 23, at the moment, compressed air in the air inlet 1 can only be exhausted from the first working port 2, the first working port 2 is disconnected from the second working port 22, and the first working port 2 is also disconnected from the third working port 21.
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 electromagnetic integrated reversing valve has reversing protection, is higher in reliability and can realize multiple control modes;
secondly, the valve body has compact structure and passage design, has good waterproof and dustproof functions and is convenient to install;
third, this application valve body is stronger to environmental suitability, and work is more stable, reliable, the life-span is longer.
The preferred embodiments of the invention are provided solely to aid in the illustration of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments 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 their full scope and equivalents. The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and it is intended that all equivalent variations and modifications of the present invention as those skilled in the art can be made without departing from the spirit and scope of the present invention.
Claims (6)
1. The electromagnetic integrated reversing valve with reversing protection is characterized by comprising a push rod assembly, a valve body assembly, a pilot valve body and an electromagnetic coil assembly, wherein the valve body assembly comprises a valve body and a valve rod assembly;
the valve body is provided with a valve body cavity, and the valve rod assembly is arranged in the valve body cavity;
the pilot valve body is arranged between the valve body assembly and the electromagnetic coil assembly, a piston cavity is formed in the position where the pilot valve body is connected with the valve body cavity, a piston of the valve rod assembly is arranged in the piston cavity, the pilot valve body and the electromagnetic coil assembly form an iron core cavity, and the iron core cavity close to one side of the pilot valve body is a third valve cavity;
the electromagnetic integrated reversing valve further comprises a first channel, a second channel and a third channel, wherein an air inlet of the valve body is respectively connected with a first working port and the ejector rod cavity through an air path, one end of the first channel is connected with the ejector rod cavity, the other end of the first channel is connected with the valve body cavity, one end of the second channel is connected with the air path between the air inlet and the first working port, and the other end of the second channel is connected with the third valve cavity; the third passage connects the third valve chamber and the piston chamber.
2. The commutation protected, electromagnetic integrated commutation valve of claim 1, wherein the valve stem assembly divides the valve body cavity into a first valve cavity and a second valve cavity; the first valve cavity is connected with a second working port, and the second valve cavity is connected with a third working port; the valve body assembly further comprises a rear cover and a first spring, the rear cover is connected with the opening of the valve body cavity in a covering mode, and two ends of the first spring are connected with the rear cover and the valve rod assembly respectively.
3. The electromagnetic integrated reversing valve for reversing protection according to claim 2, wherein the ejector rod assembly comprises an ejector rod, an ejector rod seat, an ejector rod valve rod, a third spring, a stop pin, a lower stop block, a spacer bush, an ejector rod sealing ring and an upper stop block, the lower stop block, the spacer bush, the ejector rod sealing ring and the upper stop block are sequentially arranged in the ejector rod cavity, and the ejector rod valve rod is inserted and connected with the lower stop block, the spacer bush, the ejector rod sealing ring and the upper stop block; the ejector rod is arranged on the ejector rod seat, one end of the ejector rod valve rod is connected with the ejector rod, the other end of the ejector rod valve rod is provided with a spring groove, one end of the third spring is connected with the spring groove, and the other end of the third spring abuts against and is connected with the stepped part of the first channel.
4. The electromagnetic integrated reversing valve for reversing protection according to claim 3, wherein the electromagnetic coil assembly further comprises an electromagnetic coil, a cover plate, a static iron core, a guide sleeve, a second spring, a first sealing plug and a second sealing plug, 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, facing the static iron core, of the movable iron core, and the first sealing plug is arranged at the other end of the movable iron core; one end of the movable iron core facing the pilot valve body is provided with a spring arc part, and the second spring is arranged at the spring arc part; the cover plate is arranged on the electromagnetic coil.
5. The electromagnetic integrated reversing valve for reversing protection according to claim 4, further comprising a fourth channel, wherein the pilot valve body is provided with a control port, the cover plate is provided with a groove channel, the stationary iron core is provided with a middle through hole, one open end of the middle through hole is movably connected with the second sealing plug, and the other open 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 control port and is arranged on the pilot valve body; the fourth channel is a channel which is connected with the third 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 pilot valve body and is connected with the connecting channel of the control port.
6. The integrated solenoid protected directional control valve according to claim 5, wherein said valve body further comprises a first exhaust port, a second exhaust port, and an exhaust passage connecting said third working port, said piston chamber, and said second exhaust port; the first exhaust port is connected with the second working port through an air path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995496.0A CN113606359A (en) | 2021-08-27 | 2021-08-27 | Electromagnetic integrated reversing valve with reversing protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995496.0A CN113606359A (en) | 2021-08-27 | 2021-08-27 | Electromagnetic integrated reversing valve with reversing protection |
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| CN113606359A true CN113606359A (en) | 2021-11-05 |
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| CN202110995496.0A Pending CN113606359A (en) | 2021-08-27 | 2021-08-27 | Electromagnetic integrated reversing valve with reversing protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798687A (en) * | 2017-11-17 | 2019-05-24 | 浙江盾安机械有限公司 | A kind of combination valve and air conditioner |
| CN115182993A (en) * | 2022-06-27 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Double-pneumatic control integrated valve and gas circuit protection system adopting same |
-
2021
- 2021-08-27 CN CN202110995496.0A patent/CN113606359A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798687A (en) * | 2017-11-17 | 2019-05-24 | 浙江盾安机械有限公司 | A kind of combination valve and air conditioner |
| CN115182993A (en) * | 2022-06-27 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Double-pneumatic control integrated valve and gas circuit protection system adopting same |
| CN115182993B (en) * | 2022-06-27 | 2023-11-07 | 陕西法士特齿轮有限责任公司 | Double-pneumatic-control integrated valve and protection gas circuit system adopting same |
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