CN112856023B - Improved generation two electric control solenoid valve - Google Patents
Improved generation two electric control solenoid valve Download PDFInfo
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- CN112856023B CN112856023B CN202011614493.XA CN202011614493A CN112856023B CN 112856023 B CN112856023 B CN 112856023B CN 202011614493 A CN202011614493 A CN 202011614493A CN 112856023 B CN112856023 B CN 112856023B
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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
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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
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide 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
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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
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
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- 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 improved double-electric-control electromagnetic valve which comprises a valve body, a valve rod and a rear cover, wherein a valve cavity, an air inlet, a working opening and an air outlet are formed in the valve body, the air inlet, the working opening and the air outlet are communicated with the valve cavity, two pilot assemblies are arranged on one side of the valve body, and the two pilot assemblies are arranged in parallel along the extending direction vertical to the valve body; the two pilot assemblies comprise pilot seats, a pilot cavity and a second piston cavity are arranged in the pilot seats, valve ports communicated with the pilot cavities are arranged in the pilot seats, and coil assemblies for opening and closing the valve ports are arranged on the pilot seats; wherein a second piston cavity is arranged corresponding to the valve rod; a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity. The invention has the advantages of simple structure, reasonable layout and convenient installation.
Description
Technical Field
The invention relates to the technical field of electromagnetic valves, in particular to an improved double-electric-control electromagnetic valve.
Background
The solenoid valve is an automatic basic element for controlling fluid, belongs to a control element, and is not limited to hydraulic pressure and pneumatic pressure. The electromagnetic valve is widely applied to an industrial automatic control system, and the electromagnetic valve is matched with a circuit to control the direction, flow, speed and other parameters of a medium; the valve rod in the valve body is controlled to move mainly through the pilot assembly, so that the valve rod is reversed. The dual-electric control solenoid valve is a common solenoid valve, for example, a dual-control solenoid valve is disclosed in chinese patent application No. CN201921470746.3, two sides of a valve body are respectively provided with a pilot assembly, although the valve rod can be quickly and accurately reversed, the whole solenoid valve is longer in length and occupies a larger space; wiring needs to be carried out on two sides, integrated wiring cannot be achieved, and installation is relatively troublesome. Therefore, a solenoid valve with two pilot assemblies arranged on the same side is developed, for example, "a dual-electric-control solenoid valve" disclosed in chinese patent application No. CN201910113614.3, although integrated wiring is realized and wiring is more convenient, the structure is more complex and installation is still quite troublesome, and the two pilot assemblies are arranged in parallel along the extension direction of the valve body, so that the problems of long length and large occupied space of the solenoid valve still exist.
Disclosure of Invention
The invention aims to provide an improved double-electric-control electromagnetic valve aiming at the defects and shortcomings of the prior art, and the improved double-electric-control electromagnetic valve has the advantages of simple structure, reasonable layout and convenience in installation.
The technical purpose of the invention is realized by the following technical scheme: an improved double-electric-control electromagnetic valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a valve rod is arranged in the valve cavity in a sliding mode, an air inlet, a working port and an air outlet which are communicated with the valve cavity are formed in the valve body, a rear cover is arranged on one side of the valve body, a first piston cavity corresponding to the valve rod is arranged in the rear cover, a first piston is arranged in the first piston cavity in a sliding mode, the first piston is abutted against the valve rod, two pilot assemblies are arranged on the other side of the valve body, and the two pilot assemblies are arranged in parallel in the extending direction perpendicular to the valve body;
the two pilot assemblies respectively comprise a pilot seat fixed on the valve body, a pilot cavity and a second piston cavity which are mutually communicated are arranged in the pilot seat, a valve port communicated with the pilot cavity is arranged in the pilot seat, and a coil assembly for opening and closing the valve port is arranged on the pilot seat; one second piston cavity is arranged corresponding to the valve rod, and a second piston abutting against the valve rod is arranged in the second piston cavity;
the rear cover is provided with a first balance hole communicated with the atmosphere and the first piston cavity, the guide seat is further provided with a second balance hole communicated with the atmosphere and the second piston cavity, and the first balance hole and the second balance hole are internally provided with breathing filter elements respectively;
a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity.
Furthermore, a plurality of annular grooves are formed in the valve rod, and flat rings are sleeved between adjacent annular grooves; the tightness of the valve rod relative to the valve cavity is improved, and the valve rod can be quickly reversed.
Further, the first piston and the second piston are respectively sleeved with a Y-shaped sealing ring, and notches of the Y-shaped sealing rings are back to the valve rod; the relative sealing performance of the first piston cavity and the second piston cavity is improved.
Further, the first balance holes penetrate at least two outer side faces of the rear cover; the second balance hole penetrates through at least two outer side surfaces of the guide seat; the air pressure balance in the first piston cavity and the second piston cavity is ensured, so that the first piston and the second piston move stably and quickly; after the first balance hole or the second balance hole is blocked during installation, other perforated surfaces can still normally suck air and then exhaust air.
Furthermore, a sealing plug is accommodated in the second piston cavity communicated with the connecting channel, an O-ring is arranged between the sealing plug and the side wall of the second piston cavity, an air vent is arranged on the sealing plug in a penetrating manner, one end of the air vent is communicated with the connecting channel, and the other end of the air vent is communicated with the pilot cavity corresponding to the second piston cavity; the tightness of the connecting channel is ensured.
Further, the coil assemblies all comprise sleeves, the bottom ends of the sleeves are fixed on the guide seats through pressing plates, static iron cores are fixed at the top ends of the sleeves, the coil bodies are sleeved on the outer sides of the sleeves, inner cavities of the sleeves are communicated with the guide cavities, movable iron cores are arranged in the sleeves in a sliding mode, first springs are arranged between the movable iron cores and the sleeves in a supporting mode, and the first springs always enable the movable iron cores to tend to close the valve ports.
Furthermore, the coil body is electrically connected with the plug pins, so that the electromagnetic valve is convenient to plug and control and install.
Furthermore, the bottom end of the movable iron core is provided with a convex edge for abutting against one end of the first spring, and the bottom end of the sleeve is provided with a step for abutting against the other end of the first spring.
Further, all be equipped with manual button on the guide seat, manual button with guide seat sliding fit, manual button with it corresponds the setting to move the iron core, manual button with it is equipped with the second spring to support between the guide seat, the second spring orders about manual button keeps away from move the trend of iron core, be equipped with in the guide seat and be used for restricting the separation blade of manual button roll-off.
The beneficial effects of the invention are as follows: the rear cover is arranged on one side of the valve body, the two pilot assemblies are arranged on the other side of the valve body and arranged in parallel along the extending direction vertical to the valve body, and through reasonable layout, the problem that the solenoid valve is too long in the prior art is effectively solved, so that the solenoid valve is shorter, shorter and more compact, and the installation space is greatly reduced; the two pilot assemblies comprise pilot seats fixed on the valve body, a pilot cavity and a second piston cavity which are communicated with each other are arranged in the pilot seats, valve ports communicated with the pilot cavities are arranged in the pilot seats, and coil assemblies for opening and closing the valve ports are arranged on the pilot seats; a second piston cavity is arranged corresponding to the valve rod, and a second piston abutting against the valve rod is arranged in the second piston cavity; a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity; by reasonably planning the gas direction, the corresponding coil assembly is electrified during reversing, so that the corresponding valve port is opened, the valve rod is finally pushed to slide for reversing, the reversing function of the electromagnetic valve is realized, the size of the electromagnetic valve is further effectively reduced, and the electromagnetic valve is more convenient to install; generally speaking, the invention has the advantages of simple structure, reasonable layout and convenient installation.
Drawings
Fig. 1 is an overall schematic diagram of a first embodiment of the present invention.
Fig. 2 is an overall schematic view in another direction of the first embodiment of the present invention.
Fig. 3 is an overall sectional schematic view of the first embodiment of the present invention.
Fig. 4 isbase:Sub>A schematic sectional view ofbase:Sub>A-base:Sub>A in fig. 3.
Fig. 5 is a schematic sectional view of B-B in fig. 3.
Fig. 6 is a schematic structural diagram of a rear cover according to a first embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a guide seat according to an embodiment of the invention.
Fig. 8 is an overall sectional view schematically showing a second embodiment of the present invention.
Shown in the figure: 1-a valve body; 1.1-valve cavity; 1.2-gas inlet; 1.3-working port; 1.4-exhaust port; 1.5-a pilot channel; 1.6-connecting the channels; 2-a valve stem; 2.1-ring groove; 3-rear cover; 3.1 — a first piston chamber; 3.2-first balancing holes; 4-a first piston; 5-a pilot assembly; 51-a pilot mount; 51.1-pilot chamber; 51.2 — a second piston chamber; 51.3-valve port; 51.4-second balance hole; 52-a coil assembly; 521-a sleeve; 521.1-step; 522-a platen; 523-static iron core; 524-a coil body; 525-movable iron core; 525.1-convex edge; 526-a first spring; 527-pin; 528-screw cap; 53-a second piston; 54-manual button; 55-a second spring; 56-baffle plate; 6-flat ring; 7-Y type seal ring; 8-a breathing filter element; 9-a sealing plug; 9.1-gas-guide holes; 10-O-shaped ring; 11-spring seats; 12-a spring housing; 13-third spring.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:
example one
As shown in fig. 1 to 7, an improved dual-electric-control electromagnetic valve includes a valve body 1, a valve cavity 1.1 is arranged in the valve body 1, a valve rod 2 is slidably arranged in the valve cavity 1.1, the valve body 1 is provided with an air inlet 1.2, a working port 1.3 and an air outlet 1.4 which are communicated with the valve cavity 1.1, one side of the valve body 1 is provided with a rear cover 3, a first piston cavity 3.1 corresponding to the valve rod 2 is arranged in the rear cover 3, a first piston 4 is slidably arranged in the first piston cavity 3.1, the first piston 4 is abutted against the valve rod 2, the other side of the valve body 1 is provided with two pilot assemblies 5, and the two pilot assemblies 5 are arranged in parallel along a direction perpendicular to the extending direction of the valve body 1;
the two pilot assemblies 5 respectively comprise a pilot seat 51 fixed on the valve body 1, a pilot cavity 51.1 and a second piston cavity 51.2 which are communicated with each other are arranged in the pilot seat 51, a valve port 51.3 communicated with the pilot cavity 51.1 is arranged in the pilot seat 51, and a coil assembly 52 for opening and closing the valve port 51.3 is arranged on the pilot seat 51; a second piston cavity 51.2 is arranged corresponding to the valve rod 2, and a second piston 53 abutting against the valve rod 2 is arranged in the second piston cavity 51.2;
a first balance hole 3.2 communicated with the atmosphere and the first piston cavity 3.1 is formed in the rear cover 3, a second balance hole 51.4 communicated with the atmosphere and the second piston cavity 51.2 is further formed in the pilot base 51.1, and the breathing filter element 8 is accommodated in the first balance hole 3.2 and the second balance hole 51.4 respectively;
a pilot channel 1.5 and a connecting channel 1.6 are arranged in the valve body 1, one end of the pilot channel 1.5 is communicated with the air inlet 1.2, and the other end of the pilot channel 1.5 is provided with two branches which are communicated with the two valve ports 51.3 in a one-to-one correspondence manner; one end of the connecting channel 1.6 communicates with the first piston chamber 3.1 and the other end of the connecting channel 1.6 communicates with the other second piston chamber 51.2.
A plurality of annular grooves 2.1 are formed in the valve rod 2, and flat rings 6 are sleeved between the adjacent annular grooves 2.1; specifically, two working ports 1.3 are arranged, two exhaust ports 1.4 are also arranged, and the annular groove 2.1 is arranged corresponding to each air port to ensure normal air intake and exhaust.
The first piston 4 and the second piston 53 are respectively sleeved with a Y-shaped sealing ring 7, and the notches of the Y-shaped sealing rings 7 are back to the valve rod 2.
One end of the first balance hole 3.2 is communicated with the first piston cavity 3.1, and the other end of the first balance hole 3.2 at least penetrates through two outer side surfaces of the rear cover 3, so that even if the first balance hole 3.2 is blocked at one surface after installation, other surfaces can normally suck air and exhaust air; one end of the second balance hole 51.4 is communicated with the second piston cavity 51.2, and the other end of the second balance hole 51.4 at least penetrates through two outer side surfaces of the pilot seat 51, so that even if the second balance hole 51.4 on one surface is blocked after installation, the other surface can also normally suck and exhaust air (refer to fig. 6 and 7 in particular).
When the first piston 4 slides downwards or downwards relative to the rear cover 3, the first balance hole 3.2 exhausts internal gas or sucks external gas; when the second piston 53 slides downwards or downwards relative to the guide seat 53, the second balance hole 5.4 exhausts internal gas or sucks external gas, so that the corresponding piston moves stably and reliably.
A sealing plug 9 is arranged in a second piston cavity 51.2 communicated with the connecting channel 1.6, an O-shaped ring 10 is arranged between the sealing plug 9 and the side wall of the second piston cavity 51.2, a gas guide hole 9.1 penetrates through the sealing plug 9, one end of the gas guide hole 9.1 is communicated with the connecting channel 1.6, and the other end of the gas guide hole 9.1 is communicated with a pilot cavity 51.1 corresponding to the second piston cavity 51.2; specifically, an O-shaped ring 10 is also arranged at the position, corresponding to the connecting channel 1.6, of the valve body 1, so that the sealing performance of the connecting channel 1.6 is guaranteed.
It should be noted that the two pilot assemblies 5 have the same structure, and the two pilot bases 51 are also manufactured by the same mold, which is different in that the second piston 53 corresponding to the valve rod 2 is arranged in the left pilot base 51, and the right pilot base 51 is filled with the sealing plug 9, so that the air passage is ensured to normally pass through, and the mold opening for the right pilot base 51 is not required again, that is, the cost is saved, and the installation is convenient (refer to fig. 4 specifically).
The coil assemblies 52 all comprise sleeves 521, the bottom ends of the sleeves 521 are fixed on the guide seat 51 through pressing plates 522, the top ends of the sleeves 521 are fixed with static iron cores 523, the outer sides of the sleeves 521 are sleeved with coil bodies 524, pins 527 are electrically connected to the coil bodies 524, the inner cavities of the sleeves 521 are communicated with the guide cavity 51.1, movable iron cores 525 are arranged in the sleeves 521 in a sliding manner, first springs 526 are arranged between the movable iron cores 525 and the sleeves 521 in a propping manner, and the first springs 526 always tend to make the movable iron cores 525 close the valve ports 51.3; specifically, the outer end of the stationary core 523 is further provided with a nut 528.
Under normal conditions, the movable iron core 525 is under the elastic force of the first spring 526, and the corresponding valve port 51.3 is tightly closed, when one of the coil bodies 524 is energized and generates electromagnetic force, the corresponding stationary iron core 523 attracts the lower movable iron core 525, overcoming the elastic force of the first spring 526, and the corresponding valve port 51.3 is opened.
The bottom end of the movable iron core 525 is provided with a convex edge 525.1 for abutting against one end of the first spring 526, and the bottom end of the sleeve 521 is provided with a step 521.1 for abutting against the other end of the first spring 526.
The pilot bases 51 are respectively provided with a manual button 54, the manual buttons 54 are in sliding fit with the pilot bases 51, the manual buttons 54 are arranged corresponding to the movable iron core 525, a second spring 55 is arranged between the manual buttons 54 and the pilot bases 51 in a supporting manner, the second spring 55 drives the manual buttons 54 to move away from the movable iron core 525, and a blocking piece 56 used for limiting the manual buttons 54 to slide out is arranged in the pilot bases 51; preferably, the inner end of the manual button 54 is tapered.
When the valve port 51.3 is opened and closed manually, the manual button 54 can be pressed manually to overcome the elastic force of the second spring 55, and the inner end of the manual button 54 pushes the movable iron core 525, so that the movable iron core 525 overcomes the elastic force of the first spring 526, and the corresponding valve port 51.3 is opened.
The specific working principle of the invention is as follows: as specifically illustrated in fig. 3 to 5, under normal conditions, two working ports 1.3 are connected to corresponding actuators, an air inlet 1.2 is connected to an air source, two exhaust ports 1.4 are usually connected to a muffler, a left valve port 51.3 is not opened, a right pilot assembly 5 is energized, a corresponding stationary core 523 attracts a moving core 525, so that the right valve port 51.3 remains opened, air enters the valve cavity 1.1 through the air inlet 1.2, a portion of the air is split to the two valve ports 51.3 through a pilot passage 1.5, the left pilot air does not flow into the left pilot cavity 51.1 because the corresponding moving core 525 closes the valve port 51.3, and the right pilot air passes through the valve port 51.3, the pilot cavity 51.1, the air guide hole 9.1 and a connecting passage 1.6 in sequence, and finally flows into the first piston cavity 3.1, so as to push the first piston 4, so that the valve rod 2 moves upward relative to the valve body 1, and the valve rod 2 also pushes the second piston 53, and keeps the valve rod 2 above; the other part of the gas flows to the lower working port 1.3 through the valve cavity 1.1, meanwhile, the lower exhaust port 1.4 is in a closed state, and the gas in the actuating element is exhausted to the atmosphere through the upper working port 1.3 and the valve cavity 1.1 and finally through the upper exhaust port 1.4;
when reversing is needed, the left pilot assembly 5 is electrified, the right pilot assembly 5 is not electrified, so that the left valve port 51.3 is opened, the right valve port 51.3 is closed, the left pilot gas sequentially flows into the corresponding second piston cavity 51.2 through the corresponding valve port 51.3 and the pilot cavity 51.1 to push the second piston 53, so that the valve rod 2 moves downwards relative to the valve body 1, and meanwhile, the valve rod 2 pushes the first piston 4 to move downwards, so that reversing is completed, at the moment, the upper exhaust port 1.4 is closed, the lower exhaust port 1.4 is opened, the other part of gas in the gas inlet 1.2 flows to the upper working port 1.3 through the valve cavity 1.1, and the gas in the actuating element flows through the lower working port 1.3 and the valve cavity 1.1 and is finally exhausted from the lower exhaust port 1.4.
Example two
As shown in fig. 8, the structural principle of the second embodiment is basically the same as that of the first embodiment, except that the first embodiment is a two-position five-way valve, the difference of the first embodiment is a three-position five-way valve, the annular groove 2.1 on the valve rod 2 is different from that of the first embodiment in number and distribution mode, and a spring seat 11 is pressed between the valve body 1 and the rear cover 3, the spring seat 11 is in a sleeve shape, the end of the valve rod 2 passes through the spring seat 11 and extends into the first piston cavity 3.1, and two spring sleeves 12 are sleeved in the spring seat 11, the two spring sleeves 12 are distributed at two ends of the spring seat 11 and are in sliding fit with the valve rod 2, a stepped shaft in backstop fit with the spring sleeve 12 on one side is arranged on the valve rod 2, a snap spring for a shaft in backstop fit with the spring sleeve 12 on the other side is also arranged on the valve rod 2, a third spring 13 is arranged between the two spring sleeves 12, and the third spring 13 always tends to keep the valve rod 2 at a middle position;
the working principle is basically the same as that of the first embodiment, and only when the valve rod 2 is reversed, the elastic force of the third spring 13 needs to be overcome and the valve rod is kept at the reversed position, and the specific working principle is not described in detail here.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides an improved generation two electric control solenoid valve, includes valve body (1), be equipped with valve pocket (1.1) in valve body (1), it is equipped with valve rod (2) to slide in valve pocket (1.1), seted up the intercommunication on valve body (1) air inlet (1.2), work opening (1.3) and gas vent (1.4) of valve pocket (1.1), one side of valve body (1) is equipped with back lid (3), be equipped with in back lid (3) with first piston chamber (3.1) that valve rod (2) correspond, it is equipped with first piston (4) to slide in first piston chamber (3.1), first piston (4) with valve rod (2) offset and set up its characterized in that: two pilot assemblies (5) are arranged on the other side of the valve body (1), and the two pilot assemblies (5) are arranged in parallel along the extending direction vertical to the valve body (1);
the two pilot assemblies (5) have the same structure, each of the two pilot assemblies (5) comprises a pilot base (51) fixed on the valve body (1), a pilot cavity (51.1) and a second piston cavity (51.2) which are communicated with each other are arranged in each pilot base (51), a valve port (51.3) communicated with the pilot cavity (51.1) is arranged in each pilot base (51), and a coil assembly (52) for opening and closing the valve port (51.3) is arranged on each pilot base (51); one second piston cavity (51.2) is arranged corresponding to the valve rod (2), and a second piston (53) which is abutted against the valve rod (2) is arranged in the second piston cavity (51.2);
a first balance hole (3.2) communicated with the atmosphere and the first piston cavity (3.1) is formed in the rear cover (3), a second balance hole (51.4) communicated with the atmosphere and the second piston cavity (51.2) is further formed in the guide seat (51.1), and a breathing filter element (8) is respectively accommodated in the first balance hole (3.2) and the second balance hole (51.4);
a pilot channel (1.5) and a connecting channel (1.6) are arranged in the valve body (1), one end of the pilot channel (1.5) is communicated with the air inlet (1.2), and the other end of the pilot channel (1.5) is provided with two branches which are correspondingly communicated with the two valve ports (51.3) one by one; one end of the connecting channel (1.6) is communicated with the first piston cavity (3.1), and the other end of the connecting channel (1.6) is communicated with the other second piston cavity (51.2);
a sealing plug (9) is arranged in the second piston cavity (51.2) communicated with the connecting channel (1.6), an air guide hole (9.1) penetrates through the sealing plug (9), one end of the air guide hole (9.1) is communicated with the connecting channel (1.6), and the other end of the air guide hole (9.1) is communicated with the pilot cavity (51.1) corresponding to the second piston cavity (51.2).
2. An improved dual electric control solenoid valve as defined in claim 1, wherein: a plurality of annular grooves (2.1) are formed in the valve rod (2), and flat rings (6) are sleeved between the adjacent annular grooves (2.1).
3. An improved dual electric control solenoid valve as defined in claim 1, wherein: first piston (4) with it is equipped with Y type sealing washer (7) to overlap respectively on second piston (53), the notch of Y type sealing washer (7) all dorsad valve rod (2).
4. An improved dual electric control solenoid valve as defined in claim 1, wherein: the first balancing holes (3.2) penetrate at least two outer lateral surfaces of the rear cover (3); the second balancing hole (51.4) penetrates at least two outer lateral surfaces of the guide seat (51).
5. An improved dual electric control solenoid valve as defined in claim 4, wherein: an O-shaped ring (10) is arranged between the sealing plug (9) and the side wall of the second piston cavity (51.2).
6. An improved dual electric control solenoid valve as defined in any one of claims 1 to 5, wherein: the coil assembly (52) comprises sleeves (521), the bottom ends of the sleeves (521) are fixed on the guide seat (51) through pressing plates (522), static iron cores (523) are fixed at the top ends of the sleeves (521), coil bodies (524) are sleeved on the outer sides of the sleeves (521), inner cavities of the sleeves (521) are communicated with the guide cavity (51.1), movable iron cores (525) are arranged in the sleeves (521) in a sliding mode, first springs (526) are arranged between the movable iron cores (525) and the sleeves (521) in a supporting mode, and the first springs (526) always enable the movable iron cores (525) to close the valve ports (51.3).
7. An improved dual electric control solenoid valve as defined in claim 6, wherein: the coil body (524) is electrically connected with pins (527).
8. An improved dual electric control solenoid valve as defined in claim 7, wherein: the bottom end of the movable iron core (525) is provided with a convex edge (525.1) for abutting against one end of the first spring (526), and the bottom end of the sleeve (521) is provided with a step (521.1) for abutting against the other end of the first spring (526).
9. An improved dual electric control solenoid valve as defined in claim 8, wherein: all be equipped with manual button (54) on leading seat (51), manual button (54) with leading seat (51) sliding fit, manual button (54) with move iron core (525) and correspond the setting, manual button (54) with support between leading seat (51) and be equipped with second spring (55), second spring (55) orders about manual button (54) are kept away from move the trend of iron core (525), be equipped with in leading seat (51) and be used for the restriction separation blade (56) of manual button (54) roll-off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011614493.XA CN112856023B (en) | 2020-12-31 | 2020-12-31 | Improved generation two electric control solenoid valve |
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| CN202011614493.XA CN112856023B (en) | 2020-12-31 | 2020-12-31 | Improved generation two electric control solenoid valve |
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| CN112856023A CN112856023A (en) | 2021-05-28 |
| CN112856023B true CN112856023B (en) | 2023-03-31 |
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| CN202011614493.XA Active CN112856023B (en) | 2020-12-31 | 2020-12-31 | Improved generation two electric control solenoid valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113653828B (en) * | 2021-08-30 | 2024-05-03 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0661484B1 (en) * | 1993-11-30 | 1999-08-25 | Smc Corporation | Double-solenoid type electromagnetic valve |
| JP3323344B2 (en) * | 1994-11-22 | 2002-09-09 | エスエムシー株式会社 | Double solenoid type solenoid valve |
| JP3375564B2 (en) * | 1999-04-27 | 2003-02-10 | エスエムシー株式会社 | Booster drive pilot type solenoid valve |
| JP4258812B2 (en) * | 2004-04-22 | 2009-04-30 | Ｓｍｃ株式会社 | Articulated solenoid valve |
| KR100743388B1 (en) * | 2006-03-09 | 2007-07-27 | (주) 티피씨 메카트로닉스 | Control changing device of manifold solenoid valve |
| CN105546190A (en) * | 2016-01-08 | 2016-05-04 | 西安正昌电子股份有限公司 | Dual-electric-control pilot memory valve body device with adjustable air pressure |
| CN207728651U (en) * | 2017-12-07 | 2018-08-14 | 浙江亿太诺气动科技有限公司 | A kind of energy-saving valve island of dustproof and waterproof |
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