CN113653828A - Solenoid valve and method of assembling the same - Google Patents
Solenoid valve and method of assembling the same Download PDFInfo
- Publication number
- CN113653828A CN113653828A CN202111006078.0A CN202111006078A CN113653828A CN 113653828 A CN113653828 A CN 113653828A CN 202111006078 A CN202111006078 A CN 202111006078A CN 113653828 A CN113653828 A CN 113653828A
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- Prior art keywords
- valve body
- iron core
- pilot
- valve
- cavity
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- 238000000034 method Methods 0.000 title claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Abstract
The invention discloses a solenoid valve and an assembling method thereof, comprising an exciting coil, a pilot seat and a valve body, wherein a first mounting hole is arranged in the exciting coil along the left-right direction and penetrates through the exciting coil, a second mounting hole is arranged in the pilot seat along the left-right direction, an integrally formed reset cavity is sequentially arranged in the valve body from left to right, valve body installation cavity and piston drive chamber, the left surface that the valve body was worn out to the left side in the chamber that resets communicates with each other with the outside of valve body, the right side that the valve body was worn out to the right side in piston drive chamber communicates with each other with the outside of valve body, the top surface and the bottom surface of valve body are equipped with the first air vent of a plurality of respectively, the first air vent of a plurality of all is linked together with the valve body installation cavity, the sealing assembly that resets is installed to the intracavity that resets of valve body, install the case subassembly in the valve body installation cavity of valve body, piston assembly is installed to the piston drive intracavity of valve body, install the iron core subassembly between second mounting hole and the first mounting hole. The invention has the advantages of good concentricity, good stability and the like.
Description
Technical Field
The invention belongs to the technical field of control valves, and particularly relates to an electromagnetic valve and an assembling method thereof.
Background
The electromagnetic valve is an industrial equipment controlled by electromagnetism, an automatic basic element for controlling fluid, belongs to an actuator, and generally comprises a coil combined structure, a magnetic core and other parts, and is a valve body comprising one or more holes, when the coil is powered on or powered off, the magnetic core operates to cause the fluid to pass through the valve body or be cut off, so as to achieve the purpose of changing the fluid direction. The piston cavity of the existing electromagnetic valve is arranged on the guide seat, so that the installation of the piston is separated from the valve body, the stability is poor, and the existing electromagnetic valve is mostly installed by adopting a separated rear cover, so that the parts are various, and the concentricity is poor
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the electromagnetic valve with good concentricity and good stability and the assembling method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the electromagnetic valve comprises an exciting coil, a pilot seat and a valve body, wherein a first mounting hole is formed in the exciting coil in a left-right direction in a penetrating mode, a second mounting hole is formed in the pilot seat in a left-right direction, an integrally formed reset cavity, a valve body mounting cavity and a piston driving cavity are sequentially arranged in the valve body from left to right, the piston driving cavity and the reset cavity are communicated with the valve body mounting cavity, the left side of the reset cavity penetrates out of the left side of the valve body to the left and is communicated with the outer side of the valve body, the right side of the piston driving cavity penetrates out of the right side of the valve body to the right and is communicated with the outer side of the valve body, the first mounting hole, the second mounting hole, the reset cavity, the valve body mounting cavity and the piston driving cavity are located on the same straight line in the left-right direction, a plurality of first vent holes are respectively formed in the top surface and the bottom surface of the valve body, the plurality of first vent holes are communicated with the valve body mounting cavity, and a third mounting hole is formed in the top surface of the pilot seat, the third mounting hole is linked together with the valve body installation cavity, install hand switch in the third mounting hole, the sealing component that resets is installed to the intracavity that resets of valve body, install the case subassembly in the valve body installation cavity of valve body, install piston assembly in the piston drive intracavity of valve body, install iron core subassembly between second mounting hole and the first mounting hole, the right middle part of iron core subassembly stretches into in the first mounting hole right, the left middle part of iron core subassembly stretches into in the second mounting hole left, the middle part cover of iron core subassembly is equipped with sheath pressfitting board, the upper portion and the lower part of sheath pressfitting board are inserted respectively and are equipped with first screw rod and second screw rod, first screw rod and second screw rod pass the sheath pressfitting board and stretch into in the valve body behind the guide seat left, exciting coil's right side is rotated and is installed the coil cap.
Preferably, the sealing component that resets includes back stopper and reset spring, and back stopper screw thread is installed and is installed back stopper sealing washer between the intracavity left side that resets of valve body and back stopper and the chamber that resets, and reset spring installs and contradict with the right side of back stopper in the intracavity that resets of valve body the right side of stopper and reset spring's left side and be connected, and reset spring's right middle part stretches into in the case subassembly to the right side.
Preferably, the valve core assembly comprises a valve core, a plurality of valve core sealing rings are installed on the valve core, a second vent hole is formed in the left end portion of the valve core, a third vent hole is formed in the left middle portion of the valve core, a fourth vent hole is formed in the outer wall of the middle portion of the valve core and communicated with the second vent hole through the third vent hole, and the right middle portion of the reset spring extends into the second vent hole rightward.
Preferably, the piston assembly comprises a pilot piston, a pilot piston sealing ring is sleeved on the pilot piston, the pilot piston is installed in a piston driving cavity of the valve body, and the left side surface of the pilot piston is in abutting connection with the right side surface of the valve core.
Preferably, the iron core subassembly is including moving the iron core, quiet iron core and magnet sheath, the magnet sheath cover is established and is located the right side that moves the iron core on moving iron core and quiet iron core, move the iron core and slide from side to side in the magnet sheath, the right side of magnet sheath is worn out right at the right middle part of quiet iron core, the left end portion of moving the iron core is worn out the magnet sheath left side and is extended the left side of magnet sheath and is installed sealed end cap in moving the left end portion of iron core, the right middle part of magnet sheath and quiet iron core insert first mounting hole right, move the left end portion of iron core and the left part of magnet sheath and insert in the second mounting hole left, the sheath pressfitting plate cover is established on the magnet sheath, the sheath pressfitting plate is located between guide pin bushing and the exciting coil earlier, exciting coil is worn out right to the right end of quiet iron core, coil cap threaded connection is on the right end portion of wearing out exciting coil's quiet iron core right.
Preferably, a first pilot sealing ring is installed on the left side in the second installation hole of the pilot base, a groove is formed in the left side face of the pilot base above the second installation hole, and a second pilot sealing ring is installed in the groove.
The invention also discloses an assembly method of the electromagnetic valve, which comprises the following steps:
s1, taking the valve body, the rear plug sealing ring and the spring, installing the rear plug sealing ring into the left side of the reset cavity of the valve body, screwing the rear plug into the left side of the reset cavity of the valve body from the left side of the valve body, and then installing the spring into the reset cavity of the valve body from the right side of the piston driving cavity of the valve body;
s2, taking the valve core and a plurality of valve core sealing rings, sleeving the valve core with the plurality of valve core sealing rings, and then installing the valve core into a valve body installation cavity of the valve body from the right side of a piston driving cavity of the valve body;
s3, taking a pilot piston sealing ring and a pilot piston, sleeving the pilot piston sealing ring on the pilot piston, and then installing the pilot piston in a piston driving cavity of the valve body;
s4, taking the manual switch and the guide seat and installing the manual switch on the guide seat;
s5, respectively installing a first pilot sealing ring and a second pilot sealing ring in the second installation hole and the groove of the pilot base;
s6, taking a movable iron core, a static iron core, a magnet sheath and a sheath laminated plate, sleeving the magnet sheath on the movable iron core and the static iron core and sleeving the sheath laminated plate on the middle part of the magnet sheath, then installing a sealing plug in the left end part of the movable iron core, then taking a first screw rod and a second screw rod, inserting the left end part of the movable iron core and the left part of the magnet sheath into a second installation hole leftwards, and then enabling the first screw rod and the second screw rod to penetrate through the sheath laminated plate and a pilot seat leftwards and then extend into the valve body to complete fixation;
s7, sleeving the exciting coil on the magnet sheath, and enabling the static iron core to penetrate through the first mounting hole to the right to extend to the right side of the first mounting hole;
and S8, mounting a coil cap on the right end part of the static iron core which penetrates out of the first mounting hole rightwards.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) the pilot piston is arranged on the right side in the valve body, the piston driving cavity and the valve body are integrally formed, the piston driving cavity and the reset cavity are communicated with the valve body mounting cavity, the first mounting hole, the second mounting hole, the reset cavity, the valve body mounting cavity and the piston driving cavity are positioned on the same straight line along the left-right direction, the concentricity is good, and compared with the prior art that the piston is mounted and separated from the valve body, the pilot piston is mounted in the valve body, and the stability is good;
(2) the valve body is internally provided with a reset cavity on the left side, a reset sealing assembly is arranged in the reset cavity and comprises a rear plug and a reset spring, the rear plug is arranged on the left side in the reset cavity of the valve body in a threaded manner, a rear plug sealing ring is arranged between the rear plug and the reset cavity, the reset cavity and the valve body are integrally processed and formed, the concentricity is good, the stability is good, and compared with the prior art, the valve body has fewer accessories and is simple and convenient to install;
(3) the valve core is internally provided with a second vent hole at the left end part, a third vent hole is arranged in the left middle part of the valve core, and a fourth vent hole is arranged on the outer wall of the middle part of the valve core;
in conclusion, the invention has the advantages of good concentricity, good stability and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken in the direction A-A of FIG. 2;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic structural view of the valve cartridge of the present invention;
FIG. 6 is a front view of FIG. 5;
fig. 7 is a sectional view in the direction B-B of fig. 6.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the electromagnetic valve comprises an exciting coil 1, a pilot base 2 and a valve body 3, wherein the exciting coil 1 is sleeved with a framework and the like to protect the exciting coil, a first mounting hole penetrates through the exciting coil 1 along the left-right direction in the exciting coil 1, a second mounting hole is formed along the left-right direction in the pilot base 2, an integrally formed reset cavity, a valve body 3 mounting cavity and a piston driving cavity are sequentially arranged in the valve body 3 from left to right, the piston driving cavity and the reset cavity are communicated with the valve body 3 mounting cavity, the left side surface of the reset cavity penetrates through the left side surface of the valve body 3 to the left and is communicated with the outer side of the valve body 3, the right side surface of the piston driving cavity penetrates through the right side surface of the valve body 3 to the right and is communicated with the outer side of the valve body 3, the first mounting hole, the second mounting hole, the reset cavity, the valve body 3 mounting cavity and the piston driving cavity are positioned on the same straight line along the left-right direction, the top surface and the bottom surface of the valve body 3 are respectively provided with a plurality of first vent holes, specifically, the invention is provided with two first vent holes, namely a first vent hole 200 and a first vent hole 300, at the left and right of the top surface of the valve body 3, three first vent holes, namely a first vent hole 400, a first vent hole 100 and a first vent hole 500, at the left and right intervals of the bottom surface of the valve body 3, a plurality of first vent holes are communicated with the mounting cavity of the valve body 3, a third mounting hole is arranged on the top surface of the pilot base 2, the third mounting hole is communicated with the mounting cavity of the valve body 3, a manual switch 4 is arranged in the third mounting hole, a reset sealing assembly is arranged in the reset cavity of the valve body 3, a valve core assembly is arranged in the mounting cavity of the valve body 3, a piston assembly is arranged in a piston driving cavity of the valve body 3, an iron core assembly is arranged between the second mounting hole and the first mounting hole, the right middle part of the iron core assembly extends into the first mounting hole rightwards, the left middle part of the iron core assembly extends into the second mounting hole leftwards, the middle part of the iron core assembly is sleeved with a sheath laminated plate 5, a first screw rod 6 and a second screw rod 7 are respectively inserted into the upper part and the lower part of the sheath laminated plate 5, the first screw rod 6 and the second screw rod 7 penetrate through the sheath laminated plate 5 and the pilot seat 2 leftwards and then extend into the valve body 3, and the right side of the excitation coil 1 is rotatably provided with a coil cap 8. The motion speed block has small friction resistance.
The sealing assembly that resets includes back stopper 9 and reset spring 10, and back stopper 9 screw thread is installed and is filled in sealing washer 11 after filling in 9 and the chamber of resetting between the chamber after the intracavity that resets of valve body 3 left side and, and reset spring 10 installs and is filled in 9 right side and reset spring 10's left side and the right side of back stopper 9 after the intracavity that resets of valve body 3 and contradict and be connected, and reset spring 10's right middle part stretches into in the case subassembly right.
The valve core assembly comprises a valve core 12, a plurality of valve core sealing rings 13 are mounted on the valve core 12, a second vent hole 14 is formed in the left end portion of the valve core 12, a third vent hole 15 is formed in the left middle portion of the valve core 12, a fourth vent hole 16 is formed in the outer wall of the middle portion of the valve core 12, the fourth vent hole 16 is communicated with the second vent hole 14 through the third vent hole 15, and the right middle portion of the reset spring 10 extends into the second vent hole 14 rightwards.
The piston assembly comprises a pilot piston 17, a pilot piston sealing ring 18 is sleeved on the pilot piston 17, the pilot piston 17 is installed in a piston driving cavity of the valve body 3, and the left side surface of the pilot piston 17 is connected with the right side surface of the valve core 12 in an abutting mode.
The iron core assembly comprises a movable iron core 19, a static iron core 20 and a magnet sheath 21, wherein the magnet sheath 21 is sleeved on the movable iron core 19 and the static iron core 20, the static iron core 20 is positioned on the right side of the movable iron core 19, the movable iron core 19 slides left and right in the magnet sheath 21, the right middle part of the static iron core 20 penetrates out of the right side of the magnet sheath 21, the left end part of the movable iron core 19 penetrates out of the magnet sheath 21 to the left side to extend to the left side of the magnet sheath 21, a sealing plug 22 is arranged in the left end part of the movable iron core 19, the right middle part of the magnet sheath 21 and the static iron core 20 are inserted into a first mounting hole to the right side, the left end part of the movable iron core 19 and the left part of the magnet sheath 21 are inserted into a second mounting hole to the left side, a sheath press plate 5 is sleeved on the magnet sheath 21, the sheath press plate 5 is positioned between a first guide sleeve and an excitation coil 1, the sheath press plate 5 is clamped in the right side surface of the first guide seat 2, the right end of the static iron core 20 penetrates out of the excitation coil 1, the coil cap 8 is screwed on the right end of the stationary core 20 that passes right out of the exciting coil 1.
A first pilot sealing ring 23 is installed on the left side in the second installation hole of the pilot base 2, a groove 24 is formed in the left side face of the pilot base 2 above the second installation hole, and a second pilot sealing ring 25 is installed in the groove 24.
The invention also discloses an assembly method of the electromagnetic valve, which comprises the following steps:
s1, taking the valve body 3, the rear plug 9, the rear plug sealing ring 11 and the spring, installing the rear plug sealing ring 11 into the left side of the reset cavity of the valve body 3, screwing the rear plug 9 into the left side of the reset cavity of the valve body 3 from the left side of the valve body 3, and then installing the spring into the reset cavity of the valve body 3 from the right side of the piston driving cavity of the valve body 3;
s2, taking the valve core 12 and the valve core sealing rings 13, sleeving the valve core 12 with the valve core sealing rings 13, and then installing the valve core 12 into the valve body 3 installation cavity of the valve body 3 from the right side of the piston driving cavity of the valve body 3;
s3, taking the pilot piston sealing ring 18 and the pilot piston 17, sleeving the pilot piston sealing ring 18 on the pilot piston 17, and then installing the pilot piston 17 in a piston driving cavity of the valve body 3;
s4, taking the manual switch 4 and the pilot base 2 and installing the manual switch 4 on the pilot base 2;
s5, respectively installing the first pilot sealing ring 23 and the second pilot sealing ring 25 in the second installation hole and the groove 24 of the pilot base 2;
s6, taking the movable iron core 19, the static iron core 20, the magnet sheath 21 and the sheath laminated plate 5, sleeving the magnet sheath 21 on the movable iron core 19 and the static iron core 20, sleeving the sheath laminated plate 5 on the middle part of the magnet sheath 21, then installing a sealing plug 22 in the left end part of the movable iron core 19, taking the first screw rod 6 and the second screw rod 7, inserting the left end part of the movable iron core 19 and the left part of the magnet sheath 21 into the second installation hole leftwards, and then enabling the first screw rod 6 and the second screw rod 7 to penetrate through the sheath laminated plate 5 and the pilot base 2 leftwards and then extend into the valve body 3 to complete fixation;
s7, sleeving the exciting coil 1 on the magnet sheath 21 and enabling the static iron core 20 to penetrate through the first mounting hole to the right side to extend to the right side of the first mounting hole;
s8, a coil cap 8 is arranged on the right end of a static iron core 20 which penetrates through a first mounting hole rightwards, when the valve is not electrified, gas enters from a first vent hole 100, then the gas enters from a valve core 12 into a reset cavity to form reset gas, the first vent hole 100 is communicated with the first vent hole 200 to form normally open working gas, the first vent hole 200 is not communicated with a first vent hole 400, the first vent hole 300 is communicated with the first vent hole 500 to exhaust, when the valve is electrified and used, an exciting coil 1 generates a magnetic field to generate pulling force for the static iron core 20, the static iron core 20 applies the pulling force on a movable iron core 19, the movable iron core 19 is separated from a sealing plug 22, the gas enters from the static iron core 20 and the coil cap 8, reaches the movable iron core 19 and then reaches a piston driving cavity, the gas drives the valve core 12 to move leftwards to be reversed, the first vent hole 100 is closed with the first vent hole 200, the first vent hole 100 is communicated with the first vent hole 300, the first ventilation hole 200 is communicated with the first ventilation hole 400 for air exhaust, and the first ventilation hole 300 is closed with the first ventilation hole 500.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (7)
1. Solenoid valve, its characterized in that: the valve comprises an excitation coil, a pilot seat and a valve body, wherein a first mounting hole is formed in the excitation coil in a left-right direction in a penetrating mode, a second mounting hole is formed in the pilot seat in a left-right direction, an integrally formed reset cavity, a valve body mounting cavity and a piston driving cavity are sequentially arranged in the valve body from left to right, the piston driving cavity and the reset cavity are communicated with the valve body mounting cavity, the left side of the reset cavity penetrates out of the left side of the valve body to the left and is communicated with the outer side of the valve body, the right side of the piston driving cavity penetrates out of the right side of the valve body to the right and is communicated with the outer side of the valve body, the first mounting hole, the second mounting hole, the reset cavity, the valve body mounting cavity and the piston driving cavity are located on the same straight line in the left-right direction, a plurality of first vent holes are respectively formed in the top surface and the bottom surface of the valve body, the plurality of first vent holes are communicated with the valve body mounting cavity, a third mounting hole is formed in the top surface of the pilot seat and is communicated with the valve body mounting cavity, install hand switch in the third mounting hole, the sealed subassembly that resets is installed to the intracavity that resets of valve body, install the case subassembly in the valve body mounting cavity of valve body, piston assembly is installed to the piston drive intracavity of valve body, install iron core subassembly between second mounting hole and the first mounting hole, the right middle part of iron core subassembly stretches into in the first mounting hole right, the left middle part of iron core subassembly stretches into in the second mounting hole left, the middle part cover of iron core subassembly is equipped with sheath pressfitting board, the upper portion and the lower part of sheath pressfitting board are inserted respectively and are equipped with first screw rod and second screw rod, first screw rod and second screw rod pass the sheath pressfitting board and stretch into in the valve body behind the guide seat left, exciting coil's right side is rotated and is installed the coil cap.
2. The solenoid valve according to claim 1, wherein: the sealing assembly that resets includes back stopper and reset spring, and back stopper screw thread is installed and is installed back stopper sealing washer between the intracavity left side that resets of valve body and back stopper and the chamber that resets, and reset spring installs and contradict with the right side of back stopper in the intracavity that resets of valve body the right side of stopper and reset spring's left side and be connected, and reset spring's right middle part stretches into in the case subassembly right.
3. The solenoid valve according to claim 2, wherein: the valve core assembly comprises a valve core, a plurality of valve core sealing rings are mounted on the valve core, a second vent hole is formed in the left end portion of the valve core, a third vent hole is formed in the left middle portion of the valve core, a fourth vent hole is formed in the outer wall of the middle portion of the valve core and communicated with the second vent hole through the third vent hole, and the right middle portion of the reset spring extends into the second vent hole rightwards.
4. The solenoid valve according to claim 3, wherein: the piston assembly comprises a pilot piston, a pilot piston sealing ring is sleeved on the pilot piston, the pilot piston is installed in a piston driving cavity of the valve body, and the left side face of the pilot piston is connected with the right side face of the valve core in an abutting mode.
5. The solenoid valve according to claim 4, wherein: the iron core subassembly is including moving the iron core, quiet iron core and magnet sheath, the magnet sheath cover is established and is located the right side that moves the iron core on moving iron core and quiet iron core, move the iron core horizontal slip in the magnet sheath, the right side of magnet sheath is worn out right at the right middle part of quiet iron core, the left end portion of moving the iron core is worn out the magnet sheath left side and is extended the left side of magnet sheath and is installed sealed end cap in moving the left end portion of iron core, the right middle part and the quiet iron core of magnet sheath insert first mounting hole right, move the left end portion of iron core and the left part of magnet sheath and insert in the second mounting hole left, the sheath pressfitting plate cover is established on the magnet sheath, the sheath pressfitting plate is located between guide pin bushing and the exciting coil earlier, exciting coil is worn out right to the right-hand member of quiet iron core, coil cap threaded connection is on the right end portion of wearing out exciting coil's quiet iron core right side.
6. The solenoid valve according to claim 5, wherein: a first pilot sealing ring is installed on the left side in a second installation hole of the pilot base, a groove is formed in the left side face of the pilot base above the second installation hole, and a second pilot sealing ring is installed in the groove.
7. The method of assembling a solenoid valve according to claim 6, wherein: the method comprises the following steps:
s1, taking the valve body, the rear plug sealing ring and the spring, installing the rear plug sealing ring into the left side of the reset cavity of the valve body, screwing the rear plug into the left side of the reset cavity of the valve body from the left side of the valve body, and then installing the spring into the reset cavity of the valve body from the right side of the piston driving cavity of the valve body;
s2, taking the valve core and a plurality of valve core sealing rings, sleeving the valve core with the plurality of valve core sealing rings, and then installing the valve core into a valve body installation cavity of the valve body from the right side of a piston driving cavity of the valve body;
s3, taking a pilot piston sealing ring and a pilot piston, sleeving the pilot piston sealing ring on the pilot piston, and then installing the pilot piston in a piston driving cavity of the valve body;
s4, taking the manual switch and the guide seat and installing the manual switch on the guide seat;
s5, respectively installing a first pilot sealing ring and a second pilot sealing ring in the second installation hole and the groove of the pilot base;
s6, taking a movable iron core, a static iron core, a magnet sheath and a sheath laminated plate, sleeving the magnet sheath on the movable iron core and the static iron core and sleeving the sheath laminated plate on the middle part of the magnet sheath, then installing a sealing plug in the left end part of the movable iron core, then taking a first screw rod and a second screw rod, inserting the left end part of the movable iron core and the left part of the magnet sheath into a second installation hole leftwards, and then enabling the first screw rod and the second screw rod to penetrate through the sheath laminated plate and a pilot seat leftwards and then extend into the valve body to complete fixation;
s7, sleeving the exciting coil on the magnet sheath, and enabling the static iron core to penetrate through the first mounting hole to the right to extend to the right side of the first mounting hole;
and S8, mounting a coil cap on the right end part of the static iron core which penetrates out of the first mounting hole rightwards.
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| CN202111006078.0A CN113653828A (en) | 2021-08-30 | 2021-08-30 | Solenoid valve and method of assembling the same |
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