CN219827892U - Solenoid valve and valve control device applying same - Google Patents

Abstract

The utility model discloses an electromagnetic valve and a valve control device using the electromagnetic valve, comprising a valve seat, a valve cover and a valve shaft, wherein one end of the valve seat is provided with a static iron core, the static iron core comprises two winding ends, a first coil and a second coil which are mutually independent are respectively wound on the two winding ends, the other end of the valve seat is provided with two mutually independent electrode columns, the two electrode columns are respectively electrically connected with the first coil and the second coil, the valve cover is arranged at one end of the valve seat, the valve cover covers the static iron core in the valve cover, the valve shaft is arranged on the valve cover through an elastic piece, one end of the valve shaft extends into the valve cover and is connected with a movable iron core, the other end of the valve shaft is positioned outside the valve cover and is connected with a sealing gasket, and the valve shaft can move along the axial direction relative to the valve cover. The electromagnetic valve can be controlled to be opened and closed according to the ignition conduction condition, and the safety is improved; the double-air-source valve control device can control two air sources, saves cost and has reliable performance.

Description

Solenoid valve and valve control device applying same

Technical Field

The utility model relates to the technical field of gas equipment, in particular to an electromagnetic valve and a valve control device using the electromagnetic valve.

Background

The types of gas mainly used in the market at present are: the two most commonly used gases are liquefied petroleum gas and natural gas, but the two gases are high-calorific-value gas and low-calorific-value gas respectively, and the two gases have different calorific values and pressures, so that the pipeline structures and the nozzle sizes in the gas equipment are also greatly different in order to adapt to the gas sources.

The gas equipment with double gas sources on the market can be suitable for high-heat-value gas and low-heat-value gas. Meanwhile, in order to be applicable to two different fuel gases, two sets of ignition assemblies with different air sources are generally arranged inside, and the communication condition in a pipeline system is switched through a valve body, so that different air sources can be transmitted to ignition devices with different air sources for combustion.

Related prior art such as "a double gas source gas valve" in chinese patent application, application number: CN201210224414.3; the gas inlet channel is communicated with a first gas channel and a second gas channel gas inlet which are arranged in the valve body, the accommodating cavity is arranged on the valve body and is sealed with the second gas channel through the leather membrane, and the pressure regulating spring is arranged in the accommodating cavity; the pressure regulating bolt is arranged in the second gas channel and hinged with the leather membrane, the sealing ring is arranged at the matching part of the pressure regulating bolt in the second gas channel, the valve core is arranged in the valve body, the valve core comprises a valve core upper cavity and a valve core lower cavity, the valve core upper cavity is arranged at the outlet gas of the second gas channel, and the valve core lower cavity is arranged at the outlet gas of the first gas channel; the electromagnetic valve is arranged at the gas inlet channel.

However, in the actual use process, users are often unfamiliar with the gas types, or the first gas channel and the second gas channel are opened due to operation errors, so that the conditions that the ignition combustion flame is too large to easily burn and damage equipment or the gas leakage is caused due to unsuccessful ignition can be generated, and the use safety hidden trouble exists.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the electromagnetic valve and the valve control device using the electromagnetic valve, which can control the opening and closing of the electromagnetic valve according to the ignition conduction condition and improve the safety; the double-air-source valve control device can control two air sources, saves cost and has reliable performance.

The utility model adopts the technical scheme that: the electromagnetic valve comprises a valve seat, a valve cover and a valve shaft, wherein a static iron core is arranged at one end of the valve seat, the static iron core comprises two winding ends, a first coil and a second coil which are mutually independent are respectively wound on the two winding ends, two mutually independent electrode columns are arranged at the other end of the valve seat, the two electrode columns are respectively electrically connected with the first coil and the second coil, the valve cover is arranged at one end of the valve seat, the valve cover covers the whole static iron core inside the valve cover, the valve shaft is arranged on the valve cover through an elastic piece, one end of the valve shaft extends into the valve cover and is connected with a movable iron core, the other end of the valve shaft is positioned outside the valve cover and is connected with a sealing gasket, the valve shaft can move along the axial direction relative to the valve cover, and the elastic piece applies force far away from the static iron core to the valve shaft; any one of the electrode columns is electrified, so that the static iron core generates magnetic force to adsorb the movable iron core; when the two electrode columns are electrified, the static iron core generates magnetic force with opposite directions, and the attractive force of the static iron core to the movable iron core is counteracted.

Compared with the prior art, the utility model has the advantages that firstly, the static iron core with two winding ends is arranged, the first coil and the second coil which are mutually independent are matched and wound, and then the first coil and the second coil are respectively connected with two mutually independent electrode columns, so that no matter which electrode column is conductive, the first coil or the second coil can be conductive, the static iron core can generate corresponding magnetic force to absorb the movable iron core, and the movable iron core is driven to drive the valve shaft to move. I.e. the solenoid valve of the present utility model is opened. The utility model is applied to a double-air-source valve control device, and one electrode column can control one air source.

Secondly, the utility model further provides that the two electrode columns are electrified, so that the static iron core generates magnetic force with opposite directions. This can be adjusted by changing the structure of the stationary core or changing the winding direction of the coil. The attractive force is counteracted by the opposite force generated by the stationary core, so that in this case the movable core is not attracted to the stationary core to move. The solenoid valve of the present utility model remains closed with both electrode columns energized. In the application to the double-air-source valve control device, two electrode columns are electrified, which is an abnormal condition, and the double-air-source valve control device is protected from being influenced by the abnormal condition.

In addition, the utility model is reasonably arranged in structural design, two electrode columns and the static iron core are arranged on the valve seat in proper distribution, and the valve seat is sleeved outside to cover the first coil, the second coil, the static iron core and the movable iron core. Only two electrode columns are visible from the outside and are used for connecting thermocouples in the double air source valve control device and sealing gaskets arranged in the pipeline and used for opening or closing the pipeline. The utility model has simple appearance structure and can be directly assembled in the double-air-source valve control device for use.

In some embodiments of the present utility model, the present utility model further includes an electrode holder, wherein the electrode holder has a cylindrical structure, two slots are spaced apart on the electrode holder, and tail ends of the two electrode posts are respectively installed in the slots.

In some embodiments of the present utility model, the electrode column is of a hollow circular tube structure, the head end of the electrode column is filled with a conductive material, a wire is led into the electrode column, one end of the wire is connected and conducted with the head end of the electrode column, the other end of the wire extends out of the tail end of the electrode column and is penetrated by the electrode seat, and the other end of the wire penetrates through the valve seat from the center of the valve seat and is connected with the first coil or the second coil.

In some embodiments of the present utility model, a first mounting seat is disposed at one end of the valve seat, the mounting seat is in a circular tube structure, a circle of step surface is disposed at the periphery of the mounting seat, the static iron core is partially mounted in the mounting seat, two winding ends of the static iron core extend out of the mounting seat, the first coil and the second coil are located above the mounting seat, the valve cover is sleeved at the periphery of the mounting seat, and the valve sleeve abuts against the step surface.

In the utility model, the part of the first mounting seat is in a compact structure, so that the product volume is effectively reduced.

The first installation seat is matched with the static iron core, only the static iron core can be accommodated in the first installation seat, and the first coil and the second coil are arranged at the same inner diameter position of the first installation seat and are just positioned in a gap between the outer peripheral surface of the static iron core and the inner wall surface of the valve sleeve, so that a compact structural arrangement is formed.

In some embodiments of the utility model, a notch through which the power supply line passes is provided on the bottom surface of the first mounting seat. That is, the electric wire on the electrode passes through the notch and then penetrates into the first mounting seat to be electrically connected with the first coil and the second coil.

In some embodiments of the present utility model, a second mounting seat is disposed at the other end of the valve seat, a stepped inner bottom surface is disposed in the second mounting seat, the electrode seat is erected on the inner bottom surface of the mounting seat, and a sealing ring is disposed between the inner bottom surface of the mounting seat and the motor seat. Avoiding the impurity in the external environment from entering the electromagnetic valve and affecting the normal work of the electromagnetic valve.

Specifically, the inner wall surface of second mount pad be the outer peripheral face of motor cabinet laminating completely, ensure that whole solenoid valve's volume is small and exquisite. The sealing ring is arranged on the axial direction of the stepped inner bottom surface of the second mounting seat.

In some embodiments of the present utility model, a side surface of the sealing pad, which is close to the movable iron core, is denoted as a first side surface, the first side surface is a step surface, and a spring seat is disposed at the first side surface of the sealing pad, and the spring seat is adapted to the first side surface structure of the sealing pad.

In some embodiments of the present utility model, the spring seat is of a sheet structure and is attached to the first side surface of the sealing gasket, one end of the elastic member abuts against the spring seat, and the other end of the elastic member abuts against the valve cover.

In some embodiments of the utility model, the valve cover is provided with a through hole for the valve shaft to pass through, the periphery of the through hole and the valve cover are provided with a limit sleeve along the axial extension of the through hole, the elastic piece is a spring, the inner diameter of the spring is matched with the limit sleeve, and the spring is sleeved outside the limit sleeve.

In the utility model, the limit sleeve and the valve cover are of an integrated structure, and the limit sleeve is arranged to lengthen the limit of the whole valve cover on the valve shaft, so that the valve shaft is ensured to be along the radial direction when moving, and the product performance of the utility model is improved. And the position of the spring can be limited by the limiting sleeve, so that the spring is prevented from moving. One end of the spring is abutted against the spring seat, and the spring seat is stepped, so that the position of the spring is limited.

The above embodiments may be arbitrarily combined on the basis of common knowledge in the art.

The utility model provides a valve accuse device, includes solenoid valve, first thermocouple, second thermocouple and connector, two electrodes of solenoid valve insert in the connector, first thermocouple passes through the connector and is connected with one of them electrode electricity, the second thermocouple passes through the connector and is connected with another electrode electricity, first thermocouple and second thermocouple be used for responding to the combustion signal conversion of different air supplies respectively and give the electrode after the signal of telecommunication.

Under normal conditions, only one of the two air sources can normally supply air to burn, and the thermocouple can pass through the temperature generated during burning, so that current is generated to supply to the first coil or the second coil of the electromagnetic valve to generate magnetic flux to enable the electromagnetic valve to be attracted and opened. When the first thermocouple and the second thermocouple sense temperature simultaneously under unexpected conditions, magnetic fluxes generated by the first coil and the second coil can offset each other, so that the magnetic force disappears, the electromagnetic valve cuts off a gas channel, and the existence of more serious potential safety hazards is avoided.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a schematic diagram of a solenoid valve according to the present utility model;

fig. 2 is a schematic view of a part of the structure of the valve control device in the present utility model.

Wherein, the reference numerals specifically explain as follows: 1. an electrode; 2. a seal ring; 3. a valve seat; 31. a first mount; 31a, a notch; 32. a second mounting base; 4. a second coil; 5. a first coil; 6. a stationary core; 7. a movable iron core; 8. a valve housing; 81. a limit sleeve; 9. a valve shaft; 10. an elastic member; 11. a spring seat; 12. a sealing gasket; 12a, a first side; 13. an electrode base; 14. a first thermocouple; 15. a second thermocouple; 16. and (5) a connector.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

An embodiment of a solenoid valve is shown in fig. 1: the valve seat 3 is provided with a static iron core 6 at one end, the static iron core 6 comprises two winding ends, a first coil 5 and a second coil 4 which are mutually independent are respectively wound on the two winding ends, two mutually independent electrode 1 columns are arranged at the other end of the valve seat 3 and are respectively electrically connected with the first coil 5 and the second coil 4, the valve cover 8 is arranged at one end of the valve seat 3, the valve cover 8 covers the static iron core 6 in the valve cover, the valve shaft 9 is arranged on the valve cover 8 through an elastic piece 10, one end of the valve shaft 9 extends into the valve cover 8 and is connected with a movable iron core 7, the other end of the valve shaft 9 is positioned outside the valve cover 8 and is connected with a sealing gasket 12, the valve shaft 9 can move along the axial direction relative to the valve cover 8, and the elastic piece 10 applies a force far away from the static iron core 6 to the valve shaft 9; any pole of the electrode 1 is electrified, so that the static iron core 6 generates magnetic force to adsorb the movable iron core 7; the first coil 5 or the second coil 4 is made conductive no matter which electrode 1 column is conductive, so that the static iron core 6 can generate corresponding magnetic force to adsorb the movable iron core 7, and the movable iron core 7 is driven to drive the valve shaft 9 to move. I.e. the solenoid valve of the present utility model is opened. The utility model is applied to a double-air-source valve control device, and one electrode 1 column can control one air source.

The two poles 1 are electrified, so that the static iron core 6 generates magnetic force with opposite directions, and the magnetic force can be adjusted by changing the structure of the static iron core 6 or changing the winding direction of a coil. The attractive force is counteracted by the opposite force generated by the stationary core 6, so that in this case the movable core 7 is not attracted to the stationary core 6 to move. The solenoid valve of the present utility model remains closed with both poles 1 energized. In the double-air-source valve control device, two electrode 1 columns are electrified, which is an abnormal condition, and the double-air-source valve control device is protected from being influenced by the abnormal condition.

In the second embodiment, as shown in fig. 1, the present utility model further includes an electrode holder 13, where the electrode holder 13 has a cylindrical structure, two slots are spaced apart on the electrode holder 13, and tail ends of the two columns of electrodes 1 are respectively installed in the slots.

The electrode 1 column is of a hollow circular tube structure, the head end of the electrode 1 column is filled with a conductive material, an electric wire is communicated in the electrode 1 column, one end of the electric wire is connected and communicated with the head end of the electrode 1 column, the other end of the electric wire extends out of the tail end of the electrode 1 column and is penetrated by the electrode seat 13, and the other end of the electric wire penetrates through the valve seat 3 from the center of the valve seat 3 and is connected with the first coil 5 or the second coil 4.

One end of disk seat 3 is provided with first mount pad 31, first mount pad 31 become tubular structure, the periphery of first mount pad 31 is provided with round step face, quiet iron core 6 part install in first mount pad 31, outside two wire winding ends of quiet iron core 6 stretched out first mount pad 31, and first coil 5, second coil 4 are located the top of first mount pad 31, valve bonnet 8 cover establish at first mount pad 31 periphery, valve pocket offsets with the step face.

In the present utility model, the first mounting seat 31 is partially provided in a compact structure, so that the product volume is effectively reduced.

The utility model sets the first mounting seat 31 to fit with the static iron core 6, the first mounting seat 31 can only hold the static iron core 6, and the first coil 5 and the second coil 4 are set to the same inner diameter position of the first mounting seat 31 and just positioned in the gap between the outer peripheral surface of the static iron core 6 and the inner wall surface of the valve sleeve, thus forming a compact structure.

The bottom surface of the first mounting seat 31 is provided with a notch 31a through which the power supply line passes. That is, the electric wire on the electrode 1 passes through the notch 31a and is inserted into the first mount 31 to be electrically connected to the first coil 5 and the second coil 4.

The other end of disk seat 3 is provided with second mount pad 32, second mount pad 32 in be provided with echelonment interior bottom surface, electrode holder 13 erect on the interior bottom surface of mount pad, and be provided with sealing washer 2 in the mount pad between bottom surface and the motor cabinet. Avoiding the impurity in the external environment from entering the electromagnetic valve and affecting the normal work of the electromagnetic valve.

Specifically, the inner wall surface of the second mounting seat 32 is completely attached to the outer peripheral surface of the motor seat, so as to ensure that the whole electromagnetic valve is small in size. The seal ring 2 in the present utility model is provided in the axial direction of the stepped inner bottom surface of the second mount 32.

The other contents of the second embodiment are the same as those of the first embodiment.

In the third embodiment, as shown in fig. 1, a side surface of the sealing pad 12, which is close to the movable core 7, is denoted as a first side surface 12a, the first side surface 12a is a stepped surface, and a spring seat 11 is disposed at the first side surface 12a of the sealing pad 12, and the spring seat 11 is adapted to the structure of the first side surface 12a of the sealing pad 12. The spring seat 11 is of a sheet structure and is attached to the first side 12a of the sealing gasket 12, one end of the elastic piece 10 abuts against the spring seat 11, and the other end of the elastic piece 10 abuts against the valve cover 8.

The valve cover 8 is provided with a through hole for the valve shaft 9 to pass through, the periphery of the through hole and the valve cover 8 are provided with a limit sleeve 81 along the axial extension of the through hole, the elastic piece 10 is a spring, the inner diameter of the spring is matched with the limit sleeve 81, and the spring is sleeved outside the limit sleeve 81.

In the utility model, the limit sleeve 81 and the valve cover 8 are of an integrated structure, and the limit sleeve 81 is arranged to lengthen the limit of the whole valve cover 8 to the valve shaft 9, so that the valve shaft 9 is ensured to be along the radial direction when moving, and the product performance of the utility model is improved. And the position of the spring can be limited by the limiting sleeve 81, so that the spring is prevented from moving. One end of the spring is abutted against the spring seat 11, the spring seat 11 is stepped, and limiting of the position of the spring is achieved.

The other contents of the third embodiment are the same as those of the first or second embodiments.

The valve control device comprises an electromagnetic valve, a first thermocouple 14, a second thermocouple 15 and a connector 16, wherein two electrodes 1 of the electromagnetic valve are inserted into the connector 16, the first thermocouple 14 is electrically connected with one electrode 1 through the connector 16, the second thermocouple 15 is electrically connected with the other electrode 1 through the connector 16, and the first thermocouple 14 and the second thermocouple 15 are respectively used for sensing combustion signals of different air sources to be converted into electric signals and then transmitted to the electrodes 1.

Under normal conditions, only one of the two air sources can normally supply air to burn, and the thermocouple can generate current to supply the first coil 5 or the second coil 4 of the electromagnetic valve through the temperature generated during burning to generate magnetic flux so as to enable the electromagnetic valve to be attracted and opened. When the first thermocouple 14 and the second thermocouple 15 sense temperature simultaneously under unexpected conditions, the magnetic flux energy generated by the first coil 5 and the second coil 4 can be counteracted, so that the magnetic force disappears, the electromagnetic valve cuts off a gas channel, and the existence of more serious potential safety hazards is avoided.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present utility model may be better understood. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. The electromagnetic valve is characterized by comprising a valve seat, a valve cover and a valve shaft, wherein a static iron core is arranged at one end of the valve seat, the static iron core comprises two winding ends, a first coil and a second coil which are mutually independent are respectively wound on the two winding ends, two mutually independent electrode columns are arranged at the other end of the valve seat, the two electrode columns are respectively electrically connected with the first coil and the second coil, the valve cover is arranged at one end of the valve seat, the valve cover covers the whole static iron core inside, the valve shaft is arranged on the valve cover through an elastic piece, one end of the valve shaft extends into the valve cover and is connected with the movable iron core, the other end of the valve shaft is positioned outside the valve cover and is connected with a sealing gasket, the valve shaft can move along the axial direction relative to the valve cover, and the elastic piece applies force far away from the static iron core to the valve shaft; any one of the electrode columns is electrified, so that the static iron core generates magnetic force to adsorb the movable iron core; when the two electrode columns are electrified, the static iron core generates magnetic force with opposite directions, and the attractive force of the static iron core to the movable iron core is counteracted.

2. The electromagnetic valve according to claim 1, further comprising an electrode holder, wherein the electrode holder has a cylindrical structure, two slots are spaced apart from each other on the electrode holder, and tail ends of the two electrode posts are respectively mounted in the slots.

3. The electromagnetic valve according to claim 1, wherein the electrode column is of a hollow circular tube structure, the head end of the electrode column is filled with a conductive material, a wire is connected in the electrode column, one end of the wire is connected with the head end of the electrode column, the other end of the wire extends out of the tail end of the electrode column and penetrates through the electrode seat, and the other end of the wire penetrates through the valve seat from the center of the valve seat and is connected with the first coil or the second coil.

4. The electromagnetic valve according to claim 1, wherein a first mounting seat is arranged at one end of the valve seat, the mounting seat is in a circular tube-shaped structure, a circle of stepped surface is arranged on the periphery of the mounting seat, the static iron core is partially arranged in the mounting seat, two winding ends of the static iron core extend out of the mounting seat, the first coil and the second coil are positioned above the mounting seat, the valve cover is sleeved on the periphery of the mounting seat, and the valve sleeve abuts against the stepped surface.

5. The electromagnetic valve according to claim 4, wherein the bottom surface of the first mounting seat is provided with a notch through which the power supply line passes.

6. The electromagnetic valve according to claim 2, wherein a second mounting seat is provided at the other end of the valve seat, a stepped inner bottom surface is provided in the second mounting seat, the electrode seat is mounted on the inner bottom surface of the mounting seat, and a sealing ring is provided between the inner bottom surface of the mounting seat and the motor seat.

7. The electromagnetic valve according to claim 1, wherein a side surface of the gasket, which is close to the movable core, is denoted as a first side surface, the first side surface is a stepped surface, and a spring seat is provided at the first side surface of the gasket, and the spring seat is adapted to the first side surface structure of the gasket.

8. The solenoid valve of claim 7 wherein the spring seat is of a sheet configuration and is attached to the first side of the gasket, one end of the spring member being disposed against the spring seat and the other end of the spring member being disposed against the valve housing.

9. The electromagnetic valve according to claim 1, wherein the valve cover is provided with a through hole for the valve shaft to pass through, a limit sleeve is arranged on the periphery of the through hole and axially extends along the valve cover, the elastic piece is a spring, the inner diameter of the spring is matched with the limit sleeve, and the spring is sleeved outside the limit sleeve.

10. The valve control device is characterized by comprising the electromagnetic valve, a first thermocouple, a second thermocouple and a connector according to any one of claims 1-9, wherein two electrodes of the electromagnetic valve are inserted into the connector, the first thermocouple is electrically connected with one electrode through the connector, the second thermocouple is electrically connected with the other electrode through the connector, and the first thermocouple and the second thermocouple are respectively used for sensing combustion signals of different air sources to be converted into electric signals and then transmitted to the electrodes.