CN113653828B - Solenoid valve and method of assembling the same - Google Patents
Solenoid valve and method of assembling the same Download PDFInfo
- Publication number
- CN113653828B CN113653828B CN202111006078.0A CN202111006078A CN113653828B CN 113653828 B CN113653828 B CN 113653828B CN 202111006078 A CN202111006078 A CN 202111006078A CN 113653828 B CN113653828 B CN 113653828B
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- valve body
- iron core
- cavity
- mounting hole
- reset
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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 84
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000008358 core component Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 239000000306 component Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims description 36
- 238000009434 installation Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electromagnetic valve and an assembling method thereof, the electromagnetic valve comprises an exciting coil, a guide seat and a valve body, wherein a first mounting hole is formed in the exciting coil in a penetrating manner along the left-right direction, a second mounting hole is formed in the guide seat along the left-right direction, a reset cavity, a valve body mounting cavity and a piston driving cavity are sequentially formed in the valve body in an integrated manner from left to right, the left side surface of the reset cavity penetrates left out of the valve body and is communicated with the outer side of the valve body, the right side surface of the piston driving cavity penetrates right out of the valve body and is communicated with the outer side of the valve body, a plurality of first vent holes are respectively formed in the top surface and the bottom surface of the valve body, the first vent holes are communicated with the valve body mounting cavity, a reset sealing component is arranged in the reset cavity of the valve body, a valve core component is arranged in the valve body mounting cavity of the valve body, a piston component is arranged in the piston driving cavity of the valve body, and an iron core component is arranged between the 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 assembly method thereof.
Background
The electromagnetic valve is an electromagnetic control industrial equipment, is an automatic basic element for controlling fluid, and belongs to an actuator, the electromagnetic valve is usually composed of a coil combination structure, a magnetic core and other parts, and is a valve body containing one or more holes, and when the coil is electrified or de-electrified, 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 direction of the fluid. The piston cavity of the existing electromagnetic valve is arranged on the front guide seat, so that the installation of the piston is separated from the valve body, the stability is poor, the existing electromagnetic valve is installed by adopting a separated rear cover, and the existing electromagnetic valve is various in fittings and poor in concentricity
Disclosure of Invention
The invention aims to solve 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 guide seat and a valve body, wherein a first mounting hole is formed in the exciting coil in a left-right direction through the exciting coil, a second mounting hole is formed in the guide seat in the left-right direction, an integrally formed reset cavity, a valve body mounting cavity and a piston driving cavity are sequentially formed in the valve body from left to right, the piston driving cavity and the reset cavity are all communicated with the valve body mounting cavity, the left side surface of the reset cavity penetrates left and right through the left side surface of the valve body to be communicated with the outer side of the valve body, the right side surface of the piston driving cavity penetrates right and left through the right side surface of the valve body to be 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 first vent holes are all communicated with the valve body mounting cavity, a third mounting hole is formed in the top surface of the guide seat, the third mounting hole is communicated with the valve body mounting cavity, a manual switch is arranged in the third mounting hole, a reset sealing component is arranged in the reset cavity, a reset cavity is arranged in the valve body cavity, a piston mounting cavity is internally provided with the piston core, the piston mounting component is arranged, the piston core is arranged in the valve body, the valve body is arranged in the valve body, the valve core and the valve core is arranged in the middle of the valve core, the valve core and the valve core cover and the valve body are respectively extend into the middle part.
Preferably, the reset seal assembly comprises a rear plug and a reset spring, wherein the rear plug is arranged on the left side of a 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 spring is arranged on the right side of the rear plug in the reset cavity of the valve body, the left side of the reset spring is in abutting connection with the right side of the rear plug, and the right middle part of the reset spring stretches into the valve core assembly right.
Preferably, the valve core assembly comprises a valve core, a plurality of valve core sealing rings are arranged on the valve core, a second vent hole is formed in the left end part of the valve core, a third vent hole is formed in the left middle part of the valve core, a fourth vent hole is formed in the outer wall of the middle part of the valve core, the fourth vent hole is communicated with the second vent hole through the third vent hole, and the right middle part of the reset spring stretches into the second vent hole right.
Preferably, the piston assembly comprises a pilot piston, a pilot piston sealing ring is sleeved on the pilot piston, the pilot piston is arranged in a piston driving cavity of the valve body, and the left side face of the pilot piston is in abutting connection with the right side face of the valve core.
Preferably, the iron core assembly comprises a movable iron core, a static iron core and a magnet sheath, wherein the magnet sheath is sleeved on the movable iron core and the static iron core, the static iron core is positioned on the right side of the movable iron core, the movable iron core slides left and right in the magnet sheath, the right middle part of the static iron core penetrates right out of the right side of the magnet sheath, the left end part of the movable iron core penetrates left out of the magnet sheath to extend to the left side of the magnet sheath, a sealing plug is arranged in the left end part of the movable iron core, the right middle part of the magnet sheath and the static iron core are inserted right into a first mounting hole, the left end part of the movable iron core and the left part of the magnet sheath are inserted left into a second mounting hole, a sheath pressing plate is sleeved on the magnet sheath, the sheath pressing plate is positioned between a guide sleeve and an exciting coil, the right end of the static iron core penetrates right the exciting coil, and the coil cap is in threaded connection with the right end part of the static iron core penetrating right out of the exciting coil.
Preferably, a first pilot sealing ring is arranged in the second mounting hole Zuo Cean of the pilot seat, a groove is formed above the second mounting hole on the left side surface of the pilot seat, and a second pilot sealing ring is arranged in the groove.
The invention also discloses an assembling method of the electromagnetic valve, which comprises the following steps:
S1, taking a valve body, a rear plug sealing ring and a spring, loading the rear plug sealing ring into the left side of a 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 loading the spring into the reset cavity of the valve body from the right side of a piston driving cavity of the valve body;
S2, taking a valve core and a plurality of valve core sealing rings, sleeving the valve core sealing rings on the valve core, 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 seat;
S6, taking a movable iron core, a static iron core, a magnet sheath and a sheath pressing plate, sleeving the magnet sheath on the movable iron core and the static iron core, sleeving the sheath pressing plate on the middle part of the magnet sheath, then installing a sealing plug in the left end part of the movable iron core, 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 enabling the first screw rod and the second screw rod to penetrate through the sheath pressing plate and a guide seat leftwards and then extend into a valve body to complete fixation;
S7, sleeving the exciting coil on the magnet sheath, and enabling the static iron core to penetrate out of the first mounting hole rightwards and extend to the right side of the first mounting hole;
s8, installing a coil cap on the right end part of the static iron core penetrating right out of the first installation hole.
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 separated from the valve body, the pilot piston is arranged in the valve body, and the stability is good;
(2) The left side in the valve body is provided with the reset cavity, the reset sealing assembly is arranged in the reset cavity and comprises the rear plug and the reset spring, the rear plug is arranged on the left side in the reset cavity of the valve body in a threaded manner, the rear plug sealing ring is arranged between the rear plug and the reset cavity, the reset cavity and the valve body are integrally formed, the concentricity is good, the stability is good, compared with the prior art, the number of accessories is small, and the installation is simple and convenient;
(3) The valve core is characterized in that the left end part of the valve core is internally provided with a second vent hole, the left middle part of the valve core is internally provided with a third vent hole, the outer wall of the middle part of the valve core is provided with a fourth vent hole, and when the valve core is used, gas in the reset cavity can enter the reset cavity from the fourth vent hole of the valve core, and the like;
In conclusion, the invention has the advantages of good concentricity, good stability and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view in the direction A-A of FIG. 2;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic view of the structure 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 B-B direction of fig. 6.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the 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 invention, as 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in figure 1, the electromagnetic valve comprises an exciting coil 1, a pilot seat 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 is formed in the exciting coil 1 and penetrates through the exciting coil 1 along the left-right direction, a second mounting hole is formed in the pilot seat 2 and is formed in the valve body 3 along the left-right direction, an integrally formed reset cavity, a valve body 3 mounting cavity and a piston driving cavity are sequentially formed in the valve body 3 from left to right, the piston driving cavity and the reset cavity are both communicated with the valve body 3 mounting cavity, the left side surface of the reset cavity penetrates left to right through the left side surface of the valve body 3 to be communicated with the outer side of the valve body 3, the right side surface of the piston driving cavity penetrates right to the right side surface of the valve body 3 to be 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, a plurality of first vent holes are respectively formed in the top surface and the bottom surface of the valve body 3, specifically, two first vent holes 200 and 300 are respectively arranged at left and right intervals on the top surface of the valve body 3, three first vent holes 400, 100 and 500 are respectively arranged at left and right intervals on the bottom surface of the valve body 3, a plurality of first vent holes are communicated with a mounting cavity of the valve body 3, a third mounting hole is formed on the top surface of the pilot seat 2 and 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 a reset cavity of the valve body 3, a valve core assembly is arranged in a valve body 3 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 stretches into the first mounting hole to the right, the left middle part of the iron core component stretches into the second mounting hole to the left, the middle part of the iron core component is sleeved with a sheath pressing 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 pressing plate 5, the first screw rod 6 and the second screw rod 7 penetrate through the sheath pressing plate 5 and the pilot seat 2 to the left and stretch into the valve body 3, a coil cap 8 is rotatably arranged on the right side of the exciting coil 1, and when the valve core is assembled in the valve body 3, the movement stroke of the valve core is changed from the traditional 4mm to 2mm. The motion speed block has small friction resistance.
The reset sealing assembly comprises a rear plug 9 and a reset spring 10, wherein the rear plug 9 is arranged on the left side of a reset cavity of the valve body 3 in a threaded manner, a rear plug sealing ring 11 is arranged between the rear plug 9 and the reset cavity, the reset spring 10 is arranged on the right side of the rear plug 9 in the reset cavity of the valve body 3, the left side of the reset spring 10 is in abutting connection with the right side of the rear plug 9, and the right middle part of the reset spring 10 stretches into the valve core assembly right.
The valve core assembly comprises a valve core 12, a plurality of valve core sealing rings 13 are arranged on the valve core 12, a second vent hole 14 is formed in the left end part of the valve core 12, a third vent hole 15 is formed in the left middle part of the valve core 12, a fourth vent hole 16 is formed in the outer wall of the middle part 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 part of the reset spring 10 stretches into the second vent hole 14 to the right.
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 face of the pilot piston 17 is in abutting connection with the right side face of the valve core 12.
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 right out of the right side of the magnet sheath 21, the left end part of the movable iron core 19 penetrates left out of the magnet sheath 21 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 right into a first mounting hole, the left end part of the movable iron core 19 and the left part of the magnet sheath 21 are inserted left into a second mounting hole, a sheath pressing plate 5 is sleeved on the magnet sheath 21, a sheath pressing plate 5 is positioned between a guide sleeve and the exciting coil 1, the right end of the static iron core 20 penetrates right out of the exciting coil 1, and a cap 8 is connected with the right end part of the static iron core 20 penetrating right out of the exciting coil 1 in a right direction.
A first pilot sealing ring 23 is arranged in a second mounting hole Zuo Cean of the pilot seat 2, a groove 24 is formed above the second mounting hole on the left side surface of the pilot seat 2, and a second pilot sealing ring 25 is arranged in the groove 24.
The invention also discloses an assembling method of the electromagnetic valve, which comprises the following steps:
S1, taking a valve body 3, a rear plug 9, a rear plug sealing ring 11 and a spring, loading the rear plug sealing ring 11 into the left side of a 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 loading the spring into the reset cavity of the valve body 3 from the right side of a piston driving cavity of the valve body 3;
S2, taking a valve core 12 and a plurality of valve core sealing rings 13, sleeving the valve core 12 with the plurality of valve core sealing rings 13, and then installing the valve core 12 into a valve body 3 installation cavity of the valve body 3 from the right side of a piston driving cavity of the valve body 3;
S3, taking a pilot piston sealing ring 18 and a 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 guide seat 2 and mounting the manual switch 4 on the guide seat 2;
S5, respectively installing a first pilot seal ring 23 and a second pilot seal ring 25 in a second installation hole and a groove 24 of the pilot seat 2;
S6, taking a movable iron core 19, a static iron core 20, a magnet sheath 21 and a sheath pressing plate 5, sleeving the magnet sheath 21 on the movable iron core 19 and the static iron core 20, sleeving the sheath pressing 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 a first screw rod 6 and a 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 a second installation hole leftwards, and then enabling the first screw rod 6 and the second screw rod 7 to penetrate through the sheath pressing plate 5 and the pilot seat 2 leftwards and then extend into the valve body 3 to finish fixation;
S7, sleeving the exciting coil 1 on the magnet sheath 21, and enabling the static iron core 20 to penetrate right out of the first mounting hole and extend to the right side of the first mounting hole;
S8, a coil cap 8 is arranged on the right end part of a static iron core 20 penetrating through a first mounting hole rightwards, when the invention is not electrified, gas enters from a first vent hole 100, then gas enters from a valve core 12 into a reset cavity to form reset gas, at the moment, the first vent hole 100 is communicated with a 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 a first vent hole 500 to exhaust, when the invention is electrified, an exciting coil 1 generates a magnetic field to generate a pulling force to the static iron core 20, the static iron core 20 acts 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 reverse leftwards, so that 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 vent hole 200 is communicated with the first vent hole 400 to exhaust, and the first vent hole 300 is sealed with the first vent hole 500.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
Claims (5)
1. Electromagnetic valve, its characterized in that: comprises an exciting coil, a guide seat and a valve body, wherein a first mounting hole is formed in the exciting coil in a way of penetrating the exciting coil along the left-right direction, a second mounting hole is formed in the guide seat in the way of penetrating the exciting coil along the left-right direction, an integrally formed reset cavity, a valve body mounting cavity and a piston driving cavity are sequentially formed 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 surface of the reset cavity penetrates left out of the left side of the valve body and is communicated with the outer side of the valve body, the right side surface of the piston driving cavity penetrates right out of the right side of the valve body 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 positioned on the same straight line along 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 guide seat, the third mounting hole is communicated with the valve body mounting cavity, a manual switch is arranged in the third mounting hole, a reset sealing component is arranged in a reset cavity of the valve body, a valve core component is arranged in the valve body mounting cavity of the valve body, a piston component is arranged in a piston driving cavity of the valve body, an iron core component is arranged between the second mounting hole and the first mounting hole, the right middle part of the iron core component stretches right into the first mounting hole, the left middle part of the iron core component stretches left into the second mounting hole, a sheath pressing plate is sleeved at the middle part of the iron core component, a first screw rod and a second screw rod are respectively inserted at the upper part and the lower part of the sheath pressing plate, the first screw rod and the second screw rod penetrate through the sheath pressing plate and a guide seat left and stretch into the valve body, a coil cap is rotatably arranged at the right side of the exciting coil, the reset sealing component comprises a rear plug and a reset spring, the back stopper screw thread is installed in the reset cavity left side of valve body and is installed back stopper sealing washer between back stopper and the reset cavity, and reset spring installs the right side of stopper behind the reset cavity of valve body and the left side of reset spring is contradicted with the right side of back stopper and is connected, in reset spring's right middle part stretches into the case subassembly right, the case subassembly includes the case, installs a plurality of case sealing washer on the case, is equipped with the second vent in the left end portion of case, is equipped with the third vent in the left middle part of case, has seted up fourth vent on the middle part outer wall of case, and fourth vent is linked together with the second vent through the third vent, and reset spring's right middle part stretches into in the second vent right, and the motion shape journey of case is 2mm.
2. The solenoid valve according to claim 1, wherein: the piston assembly comprises a pilot piston, a pilot piston sealing ring is sleeved on the pilot piston, the pilot piston is arranged in a piston driving cavity of the valve body, and the left side face of the pilot piston is in abutting connection with the right side face of the valve core.
3. The solenoid valve according to claim 2, characterized in that: the iron core assembly comprises a movable iron core, a static iron core and a magnet sheath, wherein the magnet sheath is sleeved on the movable iron core and the static iron core, the static iron core is positioned on the right side of the movable iron core, the movable iron core slides left and right in the magnet sheath, the right middle part of the static iron core penetrates right out of the right side of the magnet sheath, the left end part of the movable iron core penetrates left out of the magnet sheath and stretches to the left side of the magnet sheath, a sealing plug is arranged in the left end part of the movable iron core, the right middle part of the magnet sheath and the static iron core are inserted right into a first mounting hole, the left end part of the movable iron core and the left part of the magnet sheath are inserted left into a second mounting hole, a sheath pressing plate is sleeved on the magnet sheath, the sheath pressing plate is positioned between a guide sleeve and an exciting coil, the right end of the static iron core penetrates right out of the exciting coil, and the coil is in threaded connection with the right end part of the static iron core penetrating right out of the exciting coil.
4. A solenoid valve according to claim 3 wherein: a first pilot sealing ring is arranged in a second mounting hole Zuo Cean of the pilot seat, a groove is formed above the second mounting hole on the left side face of the pilot seat, and a second pilot sealing ring is arranged in the groove.
5. The method of assembling a solenoid valve according to claim 4, wherein: the method comprises the following steps:
S1, taking a valve body, a rear plug sealing ring and a spring, loading the rear plug sealing ring into the left side of a 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 loading the spring into the reset cavity of the valve body from the right side of a piston driving cavity of the valve body;
S2, taking a valve core and a plurality of valve core sealing rings, sleeving the valve core sealing rings on the valve core, 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 seat;
S6, taking a movable iron core, a static iron core, a magnet sheath and a sheath pressing plate, sleeving the magnet sheath on the movable iron core and the static iron core, sleeving the sheath pressing plate on the middle part of the magnet sheath, then installing a sealing plug in the left end part of the movable iron core, 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 enabling the first screw rod and the second screw rod to penetrate through the sheath pressing plate and a guide seat leftwards and then extend into a valve body to complete fixation;
S7, sleeving the exciting coil on the magnet sheath, and enabling the static iron core to penetrate out of the first mounting hole rightwards and extend to the right side of the first mounting hole;
s8, installing a coil cap on the right end part of the static iron core penetrating right out of the first installation hole.
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| CN113653828A (en) | 2021-11-16 |
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