CN216590095U - Double-iron-core electromagnetic valve capable of switching air paths - Google Patents

Abstract

A double-iron-core electromagnetic valve capable of switching gas circuits comprises a valve shell, wherein an installation cavity is formed in the valve shell, an electromagnetic valve assembly, a first valve group and a second valve group are arranged at two ends of the electromagnetic valve assembly, a small movable iron core and a large movable iron core are arranged on the electromagnetic valve assembly corresponding to the first valve group and the second valve group, the small movable iron core is arranged at one end, close to the first valve group, of the electromagnetic valve assembly, the electromagnetic valve assembly controls the small movable iron core to perform sealing control on the first valve group, the large movable iron core is arranged at one end, close to the second valve group, of the electromagnetic valve assembly, the electromagnetic valve assembly controls the large movable iron core to perform sealing control on the second valve group, the electromagnetic valve is designed to adopt a structure that one electromagnetic valve controls two movable iron cores, switching of a plurality of gas circuit channels is achieved, each channel is flexibly switched according to different currents input to the electromagnetic valve, and the switching problem of three gas circuit states is effectively solved, thereby saving the use quantity of the electromagnetic valves and reducing the volume of the assembly.

Description

Double-iron-core electromagnetic valve capable of switching air paths

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a double-iron-core electromagnetic valve capable of switching gas paths.

Background

An Electromagnetic valve (Electromagnetic valve) is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

The conventional solenoid valve in the existing market all adopts an iron core of solenoid valve control, realizes the pipe of cutting of two kinds of gas circuits, and similar switch structure realizes the gas circuit break-make through the switch form, only can realize the switching of two kinds of states, can't accomplish the switching of a plurality of states, adopts the mode that increases solenoid valve quantity to increase the passageway combination of switching when meetting a plurality of gas circuits and switching, leads to the volume increase.

Disclosure of Invention

In view of this, the present invention provides a dual-core solenoid valve capable of switching air paths.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a two iron core solenoid valves of changeable gas circuit, includes the valve casing, form the installation cavity in the valve casing, set up solenoid valve subassembly and set up first valves and the second valves at solenoid valve subassembly both ends in the installation cavity, solenoid valve subassembly corresponds first valves and second valves and sets up little movable iron core and moves the iron core greatly, little movable iron core sets up the one end that is close to first valves at solenoid valve subassembly, just solenoid valve subassembly control moves the iron core for a short time and carries out sealing control to first valves, move the one end that the iron core setting is close to the second valves at solenoid valve subassembly greatly, just solenoid valve subassembly control moves the iron core greatly and seals control to second valves.

Preferably, the first valve set is provided with a first loop and a second loop, the second valve set is provided with a third loop and a fourth loop, the electromagnetic valve assembly is provided with an electromagnetic valve passage, the first loop, the second loop, the third loop and the fourth loop are communicated with the installation cavity, a first sealing opening is formed at one end, close to the small movable iron core, of the first loop, and a second sealing opening is formed at one end, close to the large movable iron core, of the fourth loop.

The preferred, the solenoid valve subassembly includes solenoid valve body and quiet iron core, set up the center slot on the solenoid valve body, quiet iron core sets up at the center slot, the both ends setting of quiet iron core corresponds and moves the iron core fixed slot and move the iron core fixed slot greatly for a short time with moving the iron core greatly, move the iron core for a short time and move the iron core fixed slot greatly with moving greatly that the iron core stretches into to correspond for a short time and be connected with quiet iron core, just move the iron core for a short time and move the iron core greatly and move the iron core fixed slot and move greatly with moving the iron core fixed slot for a short time that corresponds according to the electric current size that the input entered the solenoid valve body.

The preferred, it moves iron core route, quiet iron core route and moves the iron core route greatly to move the iron core route for a short time that iron core, quiet iron core and the big iron core that moves that set up on the iron core that moves correspond for a short time, it sets up to move iron core route and quiet iron core route for a short time to move between iron core route and the passageway, it is the slope setting to move the iron core route greatly, quiet iron core route is close to the one end of moving the iron core greatly and forms the third seal port, and when solenoid valve subassembly lets in certain current, the second seal port is closed, and the third seal port is opened.

Preferably, a gap is formed between the static iron core and the large movable iron core, one end, close to the large movable iron core, of the static iron core passage is communicated with the gap, and one end, close to the static iron core, of the large movable iron core passage is communicated with the gap.

Preferably, the elastic restoring piece is arranged at one end of the small movable iron core close to the first valve group and one end of the large movable iron core close to the second valve group.

The preferred, elastic recovery includes first spring and second spring, first spring housing is established on the top of little movable iron core, the top of little movable iron core has first spring fixed part, the one end of first spring supports first spring fixed part, and the other end supports the cell wall top of little movable iron core fixed slot, second spring housing is established in the bottom of big movable iron core, big movable iron core has second spring fixed part, the one end of second spring supports second spring fixed part, and the other end supports the cell wall bottom of big movable iron core fixed slot.

Preferably, sealing gaskets are arranged at one end of the small movable iron core close to the first sealing port and one end of the large movable iron core close to the second sealing port.

The utility model has the beneficial effects that: the design adopts the structure that one electromagnetic valve controls two movable iron cores, realizes the switching of a plurality of air channel channels, flexibly switches each channel according to different currents input to the electromagnetic valve, and effectively solves the switching problem of three air channel states, thereby saving the using number of the electromagnetic valve and reducing the volume of an assembly; the electromagnetic valve component has high processing precision and high guiding performance, can separate two movable iron cores at the same time, realizes independent control, and can avoid the occurrence of motion interference between a small movable iron core and a large movable iron core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the unpowered embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the present invention in a state of a certain current being applied;

FIG. 3 is a schematic structural diagram of the present invention in a state of maximum current;

FIG. 4 is an enlarged view taken at A of FIG. 1;

FIG. 5 is an enlarged view of FIG. 1 at B;

fig. 6 is an enlarged view of fig. 1 at C.

Reference numerals:

1. the electromagnetic valve comprises a valve shell, 2, an installation cavity, 3, an electromagnetic valve component, 4, a first valve group, 5, a second valve group, 6, a small movable iron core, 7, a large movable iron core, 8, a first loop, 9, a second loop, 10, a third loop, 11, a fourth loop, 12, a first sealing port, 13, a second sealing port, 14, a third sealing port, 15, an electromagnetic valve body, 16, a static iron core, 17, a central groove, 18, a small movable iron core fixing groove, 19, a large movable iron core fixing groove, 20, a first valve group installation part, 21, an electromagnetic valve installation part, 22, a second valve group installation part, 23, a small movable iron core passage, 24, a static iron core passage, 25, a large movable iron core passage, 26, a gap, 27, an elastic restoring piece, 28, a first spring, 29, a second spring, 30, a first spring fixing part, 31, a second spring fixing part, 32 and a sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The utility model will be further described with reference to the accompanying drawings.

The utility model provides the following technical scheme:

as shown in fig. 1 to 6, the utility model discloses a double-iron-core solenoid valve with switchable gas circuits, which comprises a valve casing 1, wherein an installation cavity 2 is formed in the valve casing 1, a solenoid valve assembly 3, a first valve group 4 and a second valve group 5 are arranged at two ends of the solenoid valve assembly 3, the solenoid valve assembly 3 is provided with a small movable iron core 6 and a large movable iron core 7 corresponding to the first valve group 4 and the second valve group 5, the small movable iron core 6 is arranged at one end of the solenoid valve assembly 3 close to the first valve group 4, the solenoid valve assembly 3 controls the small movable iron core 6 to seal and control the first valve group 4, the large movable iron core 7 is arranged at one end of the solenoid valve assembly 3 close to the second valve group 5, and the solenoid valve assembly 3 controls the large movable iron core 7 to seal and control the second valve group 5. Specifically, this design adopts a solenoid valve to control two structures that move the iron core, realizes switching a plurality of gas circuit passageways, switches each passageway in a flexible way according to the electric current of inputing the difference to the solenoid valve, effectively solves the switching problem of three kinds of gas circuit states to save the use quantity of solenoid valve, reduce the assembly volume.

When the electromagnetic valve body 15 is not electrified, the small movable iron core 6 and the large movable iron core 7 cannot move in the small movable iron core fixing groove 18 and the large movable iron core fixing groove 19 corresponding to the two ends of the static iron core 16, at this time, the suction force of the electromagnetic valve assembly 3 is smaller than the initial pre-pressure of the first spring 28 and the second spring 29, the second sealing port 13 is opened, the first sealing port 12 is closed, the third sealing port 14 is closed, so that the third loop 10 is communicated with the second loop 9, the first loop 8 is closed, and the fourth loop 11 is closed; when a certain current is introduced into the solenoid valve body 15, the large movable iron core 7 and the small movable iron core 6 obtain a suction force generated by the solenoid valve body 15 under a specific current, the suction force is greater than the initial pretightening force of the second spring 29 and smaller than the initial pretightening force of the first spring 28, and in this state, the large movable iron core 7 generates displacement in the large movable iron core fixing groove 19, so that the second sealing port 13 is closed, the third sealing port 14 is opened, the third loop 10 is communicated with the fourth loop 11, the first loop 8 is closed, and the second loop 9 is closed; when a set maximum current is supplied to the solenoid valve body 15, the large movable iron core 7 and the small movable iron core 6 obtain the maximum suction force generated by the solenoid valve body 15 under the current, at this time, the suction force of the solenoid valve body 15 is greater than the initial pretightening force of the second spring 29 and the initial pretightening force of the first spring 28, and the large movable iron core 7 and the small movable iron core 6 generate displacement in the corresponding large movable iron core fixing groove 19 and the small movable iron core fixing groove 18 to enable the third loop 10 to be communicated with the fourth loop 11, and the first loop 8 to be communicated with the second loop 9.

Further, first valves 4 has first return circuit 8 and second return circuit 9, second valves 5 has third return circuit 10 and fourth return circuit 11, solenoid valve subassembly 3 has the solenoid valve route, first return circuit 8, second return circuit 9, third return circuit 10 and fourth return circuit 11 all communicate with installation cavity 2, first return circuit 8 is close to the one end of little movable core 6 and forms first seal port 12, fourth return circuit 11 sets up second seal port 13 near the one end of big movable core 7.

Further, the solenoid valve assembly 3 includes solenoid valve body 15 and quiet iron core 16, set up central slot 17 on the solenoid valve body 15, quiet iron core 16 sets up in central slot 17, the both ends setting of quiet iron core 16 corresponds little movable iron core 6 and the little movable iron core fixed slot 18 and the big movable iron core fixed slot 19 that move iron core 7 greatly, little movable iron core 6 and the big movable iron core 7 stretch into corresponding little movable iron core fixed slot 18 and big movable iron core fixed slot 19 and be connected with quiet iron core 16, just little movable iron core 6 and big movable iron core 7 move in corresponding little movable iron core fixed slot 18 and big movable iron core fixed slot 19 according to the input current size that advances solenoid valve body 15. Specifically, can inject the little iron core fixed slot 18 and the big iron core fixed slot 19 that move of moving iron core 6 and big iron core 7 through the both ends setting at quiet iron core 16 for the position of moving iron core 6 and moving iron core 7 horizontal direction greatly for a short time is injectd, only can carry out elevating movement at the inslot that corresponds, and for partial prior art does not set up quiet iron core 16's structure, the machining precision of the quiet iron core 16 structure of this design is high, has the direction performance, can separate two iron cores simultaneously, realize independent control, avoid moving iron core 6 and moving the appearance between the iron core 7 and interfering for a short time.

In this design, installation cavity 2 has first valves installation department 20, solenoid valve installation department 21 and second valves installation department 22, first valves 4, solenoid valve unit 3 and second valves 5 are all installed at the position that corresponds, in order to improve quiet iron core 16's guidance quality, the little movable iron core fixed slot 18 at quiet iron core 16 both ends and the cell wall of big movable iron core fixed slot 19 all extend to first valves installation department 20 and second valves installation department 22, make little movable iron core 6 and big movable iron core 7 at the removal in-process, when stretching into first valves installation department 20 and second valves installation department 22, can obtain the guarantee of quiet iron core 16 guidance quality all the time, prevent the deviation of shift position.

Further, the small movable iron core 6, the static iron core 16 and the large movable iron core 7 are provided with a corresponding small movable iron core passage 23, a corresponding static iron core passage 24 and a corresponding large movable iron core passage 25, the small movable iron core passage 23 and the static iron core passage 24 are communicated with each other, the large movable iron core passage 25 is obliquely arranged, and one end of the static iron core passage 24, which is close to the large movable iron core 7, forms a third sealing port 14. Specifically, the large movable iron core passage 25 is obliquely arranged to avoid the static iron core passage 24, so that the static iron core 16 and the large movable iron core 7 can be sealed when the large movable iron core 7 is attracted, i.e., the third sealing port 14 is sealed.

Further, a gap 26 is formed between the fixed iron core 16 and the large movable iron core 7, one end of the fixed iron core passage 24 close to the large movable iron core 7 is communicated with the gap 26, and one end of the large movable iron core passage 25 close to the fixed iron core 16 is communicated with the gap 26. Specifically, the gap 26 between the large movable iron core 7 and the stationary iron core 16 is generated by natural droop of the large movable iron core 7 vertically placed in the large movable iron core fixing groove 19, and the gap 26 can better ensure that the large movable iron core 7 moves in the large movable iron core fixing groove 19, so that the phenomenon that the switching of the air channels cannot be smoothly performed due to the fact that the moving distance is insufficient is avoided.

Furthermore, an elastic restoring piece 27 is arranged at one end of the small movable iron core 6 close to the first valve group 4 and one end of the large movable iron core 7 close to the second valve group 5. Further, elastic recovery includes first spring 28 and second spring 29, first spring 28 cover is established on the top of little movable iron core 6, the top of little movable iron core 6 has first spring fixed part 30, first spring 28's one end supports first spring fixed part 30, and the other end supports the cell wall top of little movable iron core fixed slot 18, second spring 29 cover is established in the bottom of big movable iron core 7, big movable iron core 7 has second spring fixed part 31, second spring 29's one end supports second spring fixed part 31, and the other end supports the cell wall bottom of big movable iron core fixed slot 19. Specifically, through the one end that moves iron core 6 for a short time and be close to first valves 4 and move the one end that iron core 7 is close to second valves 5 greatly and all set up elasticity restoring piece 27 for after the input of 15 break-off currents of solenoid valve body, move iron core 6 for a short time and move iron core 7 greatly and can return to initial position under the resilience effect of the elasticity restoring piece 27 that corresponds, and then carry out the gas circuit switching I of once more and do.

Further, a sealing gasket 32 is arranged on one end of the small movable iron core 6 close to the first sealing opening 12 and one end of the large movable iron core 7 close to the second sealing opening 13. Specifically, through setting up seal gasket 32, can be effectual when the circular telegram carries out the gas circuit and switches, seal the sealing opening that needs to close, prevent to appear sealed not tight phenomenon.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a two iron core solenoid valves of changeable gas circuit, includes the valve casing, form the installation cavity in the valve casing, set up solenoid valve subassembly and set up first valves and the second valves at solenoid valve subassembly both ends in the installation cavity, its characterized in that: the solenoid valve subassembly corresponds first valves and second valves and sets up little movable iron core and big movable iron core, little movable iron core sets up the one end that is close to first valves at the solenoid valve subassembly, just the little movable iron core of solenoid valve subassembly control carries out sealing control to first valves, big movable iron core sets up the one end that is close to the second valves at the solenoid valve subassembly, just solenoid valve subassembly control moves the iron core greatly and carries out sealing control to the second valves.

2. The dual-core solenoid valve with switchable gas circuits according to claim 1, wherein: the first valve bank has a first loop and a second loop, the second valve bank has a third loop and a fourth loop, the solenoid valve assembly has a solenoid valve passageway, first loop, second loop, third loop and fourth loop all communicate with the installation cavity, the one end that first loop is close to little movable iron core forms first seal, the one end that the fourth loop is close to big movable iron core sets up the second seal, and when the solenoid valve assembly did not switch on, first seal was closed, and the second seal was opened.

3. The dual-core solenoid valve with switchable gas circuits according to claim 2, wherein: the solenoid valve subassembly includes solenoid valve body and quiet iron core, set up the center slot on the solenoid valve body, quiet iron core sets up at the center slot, the both ends setting of quiet iron core corresponds little iron core and moves the iron core fixed slot greatly with the little iron core fixed slot that moves of iron core greatly, it is connected with quiet iron core to move the iron core and move the iron core fixed slot greatly with moving the iron core greatly and stretch into corresponding little iron core fixed slot and move the iron core fixed slot greatly for a short time, just it moves the iron core and moves the iron core greatly and move in the iron core fixed slot and move the iron core fixed slot greatly for a short time that corresponds according to the electric current size that the input entered the solenoid valve body for a short time.

4. The dual-core solenoid valve with switchable gas circuits according to claim 3, wherein: the magnetic valve is characterized in that the small movable iron core, the static iron core and the large movable iron core are correspondingly provided with a small movable iron core passage, a static iron core passage and a large movable iron core passage, the small movable iron core passage and the static iron core passage are communicated and arranged, the large movable iron core passage is obliquely arranged, the static iron core passage is close to one end of the large movable iron core to form a third sealing opening, and when the magnetic valve component is communicated with a certain current, the second sealing opening is closed and the third sealing opening is opened.

5. The dual-core solenoid valve with switchable gas circuits according to claim 4, wherein: the static iron core and the large movable iron core are provided with a gap, one end of the static iron core passage close to the large movable iron core is communicated with the gap, and one end of the large movable iron core passage close to the static iron core is communicated with the gap.

6. The dual-core solenoid valve with switchable gas circuits according to claim 3, wherein: and the end of the small movable iron core close to the first valve group and the end of the large movable iron core close to the second valve group are both provided with elastic restoring pieces.

7. The dual-core solenoid valve with switchable gas circuits of claim 6, wherein: elastic recovery includes first spring and second spring, first spring housing is established on the top of little movable iron core, the top of little movable iron core has first spring fixed part, the one end of first spring supports first spring fixed part, and the other end supports the cell wall top of little movable iron core fixed slot, second spring housing is established in the bottom of big movable iron core, big movable iron core has second spring fixed part, the one end of second spring supports second spring fixed part, and the other end supports the cell wall bottom of big movable iron core fixed slot.

8. The dual-core solenoid valve with switchable gas circuits according to claim 2, wherein: and sealing gaskets are arranged at one end of the small movable iron core close to the first sealing port and one end of the large movable iron core close to the second sealing port.

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