Electromagnetic valve, gas valve and gas equipment

Abstract

The utility model belongs to the technical field of valves, and particularly discloses an electromagnetic valve, a gas valve and gas equipment. The electromagnetic valve comprises an electromagnetic driving mechanism, a movable shaft assembly, a valve element assembly, a pressing piece, a pressing reset piece and a timing trigger piece. The pressing piece is arranged on the shell in a sliding mode and matched with the second end of the movable shaft assembly, the pressing piece can actuate the movable shaft assembly to slide to the adsorption position from the separation position when being pressed to the first position from the initial position, a conductive structure is arranged on the pressing piece, and the movable shaft assembly in the adsorption position can magnetically adsorb the valve element assembly to move to the opening position. The electromagnetic driving mechanism can drive the valve element assembly to move to the closing position in the power-on state. And the timing trigger piece is electrically conducted with the conductive structure when the pressing piece reaches the first position, so that the timing trigger circuit is conducted. According to the gas valve timing device, timing closing of the electromagnetic valve and the gas valve can be achieved through a simple and reliable structure, repeated timing can be carried out, and the use safety, reliability and convenience of the gas valve and gas equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a solenoid valve, a gas valve and a gas device. Background Art

[0002] The gas valve is a key component of gas appliances such as gas stoves. It controls the flow of gas, and its performance is crucial to the safety and reliability of gas use.

[0003] To ensure the safe use of gas valves, conventional gas valves are usually normally closed electromagnetic gas valves, that is, they maintain the function of blocking the pipeline conduction when the gas valve is not powered on to avoid gas leakage; when gas is needed, the gas valve is energized so that the coil assembly in the gas valve drives the valve shaft to open the valve, thereby opening the gas channel; after power is cut off again, the valve shaft returns to the state of closing the valve under the driving action of the spring in the gas valve.

[0004] Conventional gas valves are opened and closed manually. When the user forgets to close the gas valve, there is a risk of gas leakage and safety accidents. In order to improve the safety of gas valve use, a leak-proof gas timed self-closing valve is provided in the prior art. The mechanical timer drives the cam to control the opening and closing of the gas channel, so that the self-closing valve can close the gas channel after the time set by the mechanical timer is reached. However, since the mechanical timer, cam and valve stem of the self-closing valve are mechanically matched, they are prone to aging after long-term use, resulting in mechanical errors or channel cut-off function failures due to jamming; moreover, when the user needs to use gas for a long time, it is difficult to reset the timing, and the gas is cut off during the user's use of gas, affecting the user experience. Utility Model Content

[0005] One of the technical problems solved by the utility model is to provide a solenoid valve which can effectively solve the problem that the mechanical matching structure of the timed reset of the existing solenoid valve is prone to cut-off function failure and timing is difficult to reset due to aging or matching errors, thereby improving the convenience, reliability and safety of the solenoid valve.

[0006] The second technical problem solved by the utility model is to provide a gas valve, which can effectively solve the problem that the mechanical matching structure of the timed reset of the existing gas valve is prone to cut-off function failure due to aging or matching errors and the timing is difficult to reset, thereby improving the convenience, reliability and safety of the gas valve.

[0007] The third technical problem solved by the utility model is to provide a gas device, which can effectively solve the problem of reduced reliability of existing gas equipment due to the difficulty in effectively ensuring the reliability of the use of the gas valve, thereby improving the reliability of the use of the gas equipment.

[0008] The first technical problem mentioned above is solved by the following technical solution:

[0009] A solenoid valve, comprising:

[0010] The electromagnetic drive mechanism comprises a coil assembly and a shell wrapped around the outside of the coil assembly;

[0011] A movable shaft assembly is slidably mounted on the first end of the housing and can be slidably switched between an adsorption position and a separation position;

[0012] A valve core assembly is slidably arranged in the coil assembly, and a first end of the valve core assembly passes through the second end of the housing and is used to block the valve port. The movable shaft assembly in the adsorption position can magnetically adsorb the second end of the valve core assembly and move it to an open position in a direction toward the movable shaft assembly. The electromagnetic drive mechanism can drive the valve core assembly to move to a closed position in a power-on state in a direction away from the movable shaft assembly.

[0013] A pressing member, slidably disposed at the first end of the housing and cooperating with the movable shaft assembly, wherein the pressing member can actuate the movable shaft assembly to slide from the separation position to the adsorption position when the pressing member is pressed from the initial position to the first position, and a conductive structure is disposed on the pressing member;

[0014] a press-reset member, used for applying an elastic force to the press member to make it move away from the valve core assembly, so that the press member can return to the second position when the movable shaft assembly and the valve core assembly are magnetically adsorbed, or the press member can return to the initial position when the electromagnetic drive mechanism is energized and drive the movable shaft assembly to return to the separation position, and the second position is between the initial position and the first position;

[0015] A timing triggering member is arranged on the housing and connected to a timing triggering circuit. When the pressing member reaches the first position, the timing triggering member can be electrically connected to the conductive structure to conduct the timing triggering circuit.

[0016] Compared with the background technology, the solenoid valve described in the utility model has the following beneficial effects: the solenoid valve can be opened by manually pressing the pressing piece, thereby realizing the conduction of the airflow channel and meeting the demand for gas use; in the process of the pressing piece pressing the valve core assembly to open the valve port, the conductive structure acts on the timing trigger member to make the timing trigger circuit be turned on, so that the timing can be started at the same time as the valve port is opened; after the timing is over, the valve core assembly is energized to close the valve port, thereby realizing the automatic closing of the solenoid valve after the timing time is reached, avoiding the safety hazards such as gas leakage caused by the user forgetting to close the solenoid valve; at the same time, after the timing is over, the valve core assembly is energized to close the valve port by controlling the coil assembly, which can ensure the reliability of the valve core assembly in closing the valve port, avoid the problem of the valve port not being able to be closed due to wear between the mechanical structures after long-term use, and improve the safety of the solenoid valve. The utility model relates to a novel method for controlling the gas flow in a gas-cooling system, wherein the pressure relief valve is pressed against the pressure relief valve and the pressure relief valve is pressed against the pressure relief valve. The pressure relief valve is pressed against the pressure relief valve and the pressure relief valve is pressed against the pressure relief valve. The pressure relief valve is pressed against the pressure relief valve and the pressure relief valve is pressed against the pressure relief valve. The pressure relief valve is pressed against the pressure relief valve and the pressure relief valve is pressed against the pressure relief valve.

[0017] In one embodiment, two timing trigger members are arranged at circumferential intervals along the moving shaft assembly, the first ends of the two timing trigger members are connected to the timing trigger circuit, the second ends of the two timing trigger members can be electrically connected to the conductive structure to make the timing trigger circuit conductive, and when the two timing trigger members are separated from the conductive structure, the timing trigger circuit is disconnected between the second ends of the two timing trigger members.

[0018] In one embodiment, the solenoid valve further includes a position detection element, which is connected to a position detection circuit. A trigger component is provided on the moving shaft assembly, and the trigger component can trigger the position detection element to turn on the position detection circuit when the moving shaft assembly is in the adsorption position.

[0019] In one embodiment, two position detection members are arranged at circumferential intervals along the electromagnetic drive mechanism, and the first ends of the two position detection members are connected to the position detection circuit. When the moving shaft assembly is in the adsorption position, the second ends of the two position detection members are electrically connected, and when the moving shaft assembly is in the separation position, the position detection circuit is disconnected between the second ends of the two position detection members.

[0020] In one embodiment, the movable shaft assembly includes a metal shaft body and a magnetic attraction assembly fixedly sleeved on the shaft body, and the magnetic attraction assembly can absorb the valve core assembly;

[0021] When the pressing member is at the first position, the timing trigger member, the conductive structure, the shaft, the trigger component and a position detection member are sequentially connected in series to the timing trigger circuit to conduct the timing trigger circuit.

[0022] In one embodiment, the timing trigger component has a trigger end and a wiring terminal that are relatively arranged, and the trigger end and the wiring terminal are both exposed from the shell. The trigger end can be electrically connected to the conductive structure, and the wiring terminal is used to connect to the timing trigger circuit. The timing trigger component is at least partially located inside the shell.

[0023] In one embodiment, when the pressing member is in the initial position, the trigger end elastically protrudes from the second end surface of the shell, and when the pressing member is in the first position, the conductive structure presses against the trigger end.

[0024] In one embodiment, the shell includes a main shell and a mounting sleeve, the main shell is wrapped around the coil assembly, the mounting sleeve is detachably mounted on an end of the main shell away from the second end of the valve core assembly, the moving shaft assembly is slidingly matched with the main shell, the pressing piece is slidingly matched with the mounting sleeve, and the timing trigger piece is at least partially clamped between the mounting sleeve and the main shell.

[0025] In one embodiment, a positioning groove is formed on the outer wall of the main shell, the shape of the positioning groove is adapted to the outer shape of the main shell, the shape of the timing trigger is adapted to the shape of the positioning groove, and the timing trigger is accommodated in the positioning groove.

[0026] In one embodiment, the pressing member includes a conductive inner cylinder and an insulating outer cylinder sleeved on the outside of the conductive inner cylinder, the insulating outer cylinder is slidably matched with the shell, the conductive inner cylinder is slidably matched with the moving shaft assembly, and the end face of the conductive inner cylinder facing the valve core assembly forms the conductive structure.

[0027] In one embodiment, the moving shaft assembly includes a shaft body and a magnet installed on the shaft body, the shaft body is slidably inserted into the shell and cooperates with the pressing piece, the magnet is conductive, and an end surface of the magnet facing the valve core assembly forms the trigger component, and when the moving shaft assembly is in the adsorption position, the trigger component presses against the second end of the position detection component.

[0028] In one embodiment, a coil support of the coil assembly is provided with a mounting groove at one end facing the moving shaft assembly, the mounting groove is arranged in one-to-one correspondence with the position detection element, a first end of the position detection element extends out of the mounting groove to be connected to the position detection circuit, a second end of the position detection element extends out of the end surface of the coil support to abut against the trigger component, and a portion of the position detection element accommodated in the mounting groove is plastic-sealed by the shell;

[0029] And / or, the second end of the position detecting member has a touched portion, the touched portion extends out of the end surface of the coil component and is arranged obliquely relative to the end surface of the coil component.

[0030] The above second technical problem is solved by the following technical solution:

[0031] A gas valve comprises a valve seat and a control board, wherein the valve seat is provided with a valve port, and further comprises the solenoid valve as described above, wherein when the valve core assembly is in the closed position, the second end of the valve core assembly closes the valve port, and when the valve core assembly is in the open position, the valve core assembly opens the valve port, the control board is provided with the timing trigger circuit, and the timing trigger component and the coil assembly are both electrically connected to the control board.

[0032] Compared with the background technology, the gas valve described in the utility model has the following beneficial effects: by adopting the above-mentioned solenoid valve, the gas valve can be closed at a time, thereby improving the safety and reliability of the use of the gas valve; at the same time, the gas valve can be used conveniently and the user experience can be enhanced by resetting or extending the timing.

[0033] In one embodiment, the gas valve further includes an alarm, which is communicatively connected to the control panel, and is used to give an alarm prompt after the timing triggered by the timing trigger circuit ends;

[0034] And / or, the gas valve further comprises a shell, the electromagnetic drive mechanism and the control board are both located inside the shell, the pressing member extends out of the shell, a battery is installed on the shell, and the battery is electrically connected to the control board.

[0035] The above second technical problem is solved by the following technical solution:

[0036] A gas device comprises the gas valve as described above.

[0037] Compared with the background technology, the gas equipment described in the utility model has the following beneficial effects: by adopting the above-mentioned gas valve, the timed shutdown of the gas supply can be achieved, thereby improving the safety and reliability of the use of the gas equipment; at the same time, by resetting or extending the timing, the user's demand for continuous use of gas can be met, thereby improving the convenience of using the gas equipment and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the structure of a gas valve provided in an embodiment of the utility model;

[0039] Figure 2 A schematic diagram of the disassembled structure of a gas valve provided in an embodiment of the utility model;

[0040] Figure 3 A structural cross-sectional view of a gas valve in a closed state provided by an embodiment of the utility model;

[0041] Figure 4 A structural cross-sectional view of a gas valve in an open state provided by an embodiment of the utility model;

[0042] Figure 5 for Figure 4 A partial enlarged view of point I in the middle;

[0043] Figure 6 A cross-sectional view of the solenoid valve provided by the embodiment of the utility model when the valve core assembly is in an open position;

[0044] Figure 7 A cross-sectional view of the solenoid valve provided by the embodiment of the utility model when the pressing member is in the first position;

[0045] Figure 8 for Figure 7 A partial enlarged view of the J in the middle;

[0046] Fig. 9 A stepped cross-sectional view of a gas valve provided by an embodiment of the utility model when the pressing member is in a first position;

[0047] Fig.10 for Fig. 9 A partial enlarged view of the K in the middle;

[0048] Fig.11 for Fig.10 A partial enlarged view of the L in the middle;

[0049] Fig.12 A schematic diagram of the disassembled structure of the solenoid valve provided in the embodiment of the utility model;

[0050] Fig.13 A schematic structural diagram of a first end cover provided in an embodiment of the utility model.

[0051] Description of labels:

[0052] 100, solenoid valve; 200, valve seat; 201, air inlet channel; 202, valve chamber; 203, air outlet channel; 204, valve port; 300, housing; 301, first half housing; 3011, battery receiving slot; 302, second half housing; 303, battery cover; 400, battery; 500, control panel; 600, air inlet connector; 700, handwheel assembly; 800, sealing ring;

[0053] 1. Electromagnetic drive mechanism; 11. Shell; 111. Plastic shell; 112. First end cover; 1121. End plate; 1122. Cylinder; 113. Second end cover; 114. Mounting sleeve; 1141. Outer sleeve; 1142. Connecting plate; 1143. Inner sleeve; 1144. Groove; 115. Positioning groove; 116. Sliding cavity; 12. Coil assembly; 121. Coil bracket; 1211. Mounting groove; 122. Coil; 13. Sleeve; 131. Main cylinder; 132. Mounting plate;

[0054] 2. Valve core assembly; 21. Valve shaft; 22. Blocking piece; 23. Plug seat;

[0055] 3. Moving shaft assembly; 31. Shaft body; 311. First position-limiting component; 32. Magnetic suction assembly; 321. Magnet; 3221. Trigger component; 322. Magnetic suction seat; 33. Second position-limiting component; 34. Stopper component;

[0056] 4. Pressing assembly; 41. Pressing member; 411. Insulating outer cylinder; 4111. Main sleeve; 4112. Positioning sleeve; 412. Conductive inner cylinder; 4121. Conductive structure; 4122. Positioning convex portion; 413. Cover; 4131. Connecting portion; 4132. Flange portion; 414. Sliding position-limiting cavity; 42. Pressing reset member; 43. Pressing elastic member;

[0057] 5. timing trigger; 51. trigger end; 52. extension section; 53. connection terminal;

[0058] 6. Position detection member; 61. Touched portion; 62. Main body;

[0059] 7. Valve core elastic parts. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] This embodiment provides a gas valve, which can be applied to a gas stove or other gas equipment to control the on-off of a gas pipeline and improve the safety and reliability of gas use.

[0065] like Figures 1 to 4 As shown, the gas valve includes a valve seat 200 and a solenoid valve 100. The valve seat 200 has an air flow channel, and the air flow channel has an air inlet, an air outlet, and a valve port 204 located between the air inlet and the air outlet; the solenoid valve 100 is installed on the valve seat 200, and the solenoid valve 100 has a closed state in which the valve port 204 is closed and an open state in which the valve port 204 is opened. When the solenoid valve 100 is in the open state, the air inlet, the valve port 204 and the air outlet are connected in sequence, so that the air flow channel is in a conducting state; when the solenoid valve 100 is in the closed state, the conduction between the air inlet and the air outlet is blocked, that is, the air flow channel is in a disconnected state.

[0066] In one embodiment, a valve cavity 202 with one side open is formed on the valve seat 200, and the open side of the valve cavity 202 forms a mounting port; the air flow channel includes an air inlet channel 201 and an air outlet channel 203, one end of the air inlet channel 201 forms an air inlet, and the second end of the air inlet channel 201 is connected to the valve cavity 202, one end of the air outlet channel 203 forms an air outlet, and the other end of the air outlet channel 203 is connected to the valve cavity 202. The second end of the air inlet channel 201 and the connecting port of the valve cavity 202 or the connecting port of the air outlet channel 203 and the valve cavity 202 form a valve port 204.

[0067] The solenoid valve 100 is installed at the installation port and seals the installation port, and the valve core assembly 2 of the solenoid valve 100 partially extends into the valve cavity 202 to selectively close the valve port 204. A sealing ring 800 is provided between the solenoid valve 100 and the end surface of the installation port to seal the connection between the solenoid valve 100 and the valve seat 200 to prevent gas leakage. It is worth noting that the specific structure of the valve seat 200 and the matching structure of the valve seat 200 and the solenoid valve 100 can be set with reference to the prior art, which is not the focus of this embodiment and will not be repeated here.

[0068] like Figure 3 and Figure 4As shown, the solenoid valve 100 includes an electromagnetic drive mechanism 1, a valve core assembly 2, a movable shaft assembly 3, a pressing assembly 4 and a timing trigger 5. Among them, the electromagnetic drive mechanism 1 includes a coil assembly 12 and a shell 11 wrapped around the outside of the coil assembly 12; the movable shaft assembly 3 is slidably mounted on the first end of the shell 11 and can slide and switch between the adsorption position and the separation position; the valve core assembly 2 is slidably arranged in the coil assembly 12, and the first end of the valve core assembly 2 passes through the second end of the shell 11 and is used to block the valve port 204. The movable shaft assembly 3 in the adsorption position can magnetically adsorb the second end of the valve core assembly 2 and move in the direction toward the movable shaft assembly 3 to the open position, and the electromagnetic drive mechanism 1 can drive the valve core assembly 2 to move in the direction away from the movable shaft assembly 3 to the closed position in the energized state. The elastic pressing assembly 4 includes a pressing member 41 and a pressing reset member 42. The pressing member 41 is slidably disposed at the first end of the housing 11 and cooperates with the moving shaft assembly 3. When the pressing member 41 is pressed from the initial position to the first position, the moving shaft assembly 3 can be actuated to slide from the separation position to the adsorption position. A conductive structure 4121 is disposed on the pressing member 41. The pressing reset member 42 is used to apply an elastic force to the pressing member 41 to make it away from the valve core assembly 2, so that the pressing member 41 can return to the second position when the moving shaft assembly 3 and the valve core assembly 2 are magnetically adsorbed, or the pressing member 41 can return to the initial position when the electromagnetic drive mechanism 1 is powered on and drive the moving shaft assembly 3 to return to the separation position. The second position is between the initial position and the first position. The timing trigger member 5 is disposed in the housing 11 and connected to the timing trigger circuit. When the pressing member 41 reaches the first position, the timing trigger member 5 can be electrically connected to the conductive structure 4121 to turn on the timing trigger circuit. The gas valve further comprises a control board 500 , the controller is provided with the above-mentioned timing trigger circuit, and the electromagnetic component and the timing trigger element 5 are both electrically connected to the control board 500 .

[0069] The solenoid valve 100 provided in this embodiment, in the initial state, when the pressing member 41 is in the initial position and the electromagnetic drive mechanism 1 is not energized, the movable shaft assembly 3 is maintained in a separated position separated from the valve core assembly 2 under the action of the pressing reset member 42, the first end of the valve core assembly 2 closes the valve port 204, and the timing trigger circuit is in a disconnected state; when the pressing member 41 is pressed in the direction toward the valve core assembly 2, the pressing member 41 moves to the first position in the direction toward the valve core assembly 2, and at the same time actuates the movable shaft assembly 3 to move to the adsorption position in the direction toward the valve core assembly 2, so that the magnetic attraction between the movable shaft assembly 3 and the valve core assembly 2 can drive the valve core assembly 2 to move in the direction toward the movable shaft assembly 3 to the open position of opening the valve port 204, thereby making the air flow channel conductive, and at the same time, the timing trigger circuit is in contact with the timing trigger member 5 through the conductive structure 4121. The control board 500 is turned on to send a pulse signal to start timing; the pressing piece 41 is released, because the valve core assembly 2 has a magnetic attraction on the movable shaft assembly 3 at this time, so that the movable shaft assembly 3 maintains the adsorption position, and the pressing piece 41 is reset to the second position relative to the movable shaft assembly 3 in the direction away from the coil assembly 12 under the action of the pressing and resetting piece 42, thereby separating the conductive structure 4121 and the timing triggering piece 5, and disconnecting the timing triggering circuit; when the timing time is reached, the control board 500 energizes the coil assembly 12 to drive the valve core assembly 2 to move in the direction away from the movable shaft assembly 3 to close the valve port 204. At the same time, since the magnetic attraction between the valve core assembly 2 and the movable shaft assembly 3 is reduced, the movable shaft assembly 3 returns to the separation position under the driving action of the pressing and resetting piece 42, and at the same time, the pressing piece 41 continues to reset to the initial position under the driving action of the pressing and resetting piece 42.

[0070] That is, the solenoid valve 100 provided in the present embodiment can realize the opening of the solenoid valve 100 by manually pressing the pressing member 41, thereby realizing the conduction of the air flow channel and meeting the demand for gas use. In the process of the pressing member 41 pressing the valve core assembly 2 to open the valve port 204, the conductive structure 4121 acts on the timing trigger member 5 to make the timing trigger circuit be turned on, so that the timing can be started at the same time when the valve port 204 is opened. After the timing is over, the valve core assembly 2 is energized to the coil assembly 12 to close the valve port 204, thereby realizing the automatic closing of the solenoid valve 100 after the timing time is reached, avoiding the safety hazards such as gas leakage caused by the user forgetting to close the solenoid valve 100; at the same time, after the timing is over, the valve core assembly 2 is energized to the coil assembly 12 to close the valve port 204, which can ensure the reliability of the valve core assembly 2 in closing the valve port 204, avoiding the problem of the valve port 204 not being able to be closed due to wear between the mechanical structure after long-term use, thereby improving the solenoid valve 100. The safety of use and long-term performance of the invention are improved; furthermore, after the pressing member 41 is released, the movable shaft assembly 3 can be maintained in the state of adsorbing the valve core assembly 2 so that the valve port 204 is in a stably open state, and the pressing member 41 can slide and reset to the second position relative to the movable shaft assembly 3, so that the timing trigger circuit is only turned on in the transient state when the pressing member 41 is in the first position, and is disconnected after the pressing member 41 is released and reset. The timing trigger circuit sends a pulse signal to the controller to realize timing control, reduce power loss, and thus reduce the power requirement for the control board 500. At the same time, this arrangement enables the user to press the pressing member 41 to the first position again while keeping the movable shaft assembly 3 in the adsorption position when the timing is about to end, so that the timing trigger circuit is triggered again, so that the control board 500 can extend the timing time or reset the timing time, avoiding the problem of gas use being interrupted due to the timing time being reached but the user not using up the gas, thereby improving the safety and reliability of the solenoid valve 100 and the gas valve.

[0071] like Figure 1 and Figure 2 As shown, in one embodiment, the gas valve further includes a housing 300, the control panel 500 and the electromagnetic drive mechanism 1 are both located inside the housing 300 to protect the control panel 500 and the electromagnetic drive mechanism 1, and the valve seat 200 passes through the housing 300 to connect the valve seat 200 with the gas pipeline. The pressing member 41 is arranged outside the housing 300 to facilitate the user to press the pressing member 41.

[0072] In order to improve the assembly performance of the gas valve, the housing 300 includes a first half shell 301 and a second half shell 302 which are relatively buckled and connected. The first half shell 301 and the second half shell 302 enclose a mounting cavity, and the first half shell 301 and the second half shell 302 are detachably connected. The buckling direction of the first half shell 301 and the second half shell 302 is perpendicular to the extension direction of the valve seat 200 and the extension direction of the valve core assembly 2, so as to facilitate the disassembly and assembly of the solenoid valve 100, the valve seat 200 and the housing 300. The assembly structure between the solenoid valve 100, the valve seat 200 and the housing 300 can be set with reference to the prior art, which is not the focus of the present utility model and will not be described in detail.

[0073] In one embodiment, the solenoid valve 100 further includes a battery 400, which is mounted on the housing 300 and electrically connected to the control board 500. The battery 400 is used to power the control board 500, so that the gas valve can be used when the city power is off, thereby improving the safety of the gas valve. Specifically, a battery compartment is provided on a side of the first half shell 301 away from the second half shell 302, and the battery compartment has a battery receiving groove 3011 adapted to the shape of the battery 400, and a plurality of batteries 400 are arranged in the battery receiving groove 3011 in a one-to-one correspondence. The battery compartment is open on a side away from the second half shell 302, and the housing 300 further includes a battery cover 303, which is detachably connected to the first half shell 301 to close the opening of the battery compartment.

[0074] Furthermore, the gas valve further includes an air inlet connector 600, which is located outside the housing 300 and is detachably connected to the air inlet of the valve seat 200 to be connected to the gas pipeline. A handwheel assembly 700 is installed on the air inlet connector 600 to achieve selective opening and closing of the gas pipeline and the air inlet passage 201, thereby achieving the disassembly and maintenance of the gas valve on the gas pipeline. The specific structure of the air inlet connector 600 and the handwheel assembly 700 can be set with reference to the prior art, which is not the focus of the present utility model and will not be described in detail here.

[0075] like Figure 6 and Figure 7 As shown, the coil assembly 12 includes a coil support 121 and a coil 122. The coil support 121 has a central through hole with two ends passing through. The valve core assembly 2 is slidably arranged in the central through hole. The coil 122 is installed on the coil support 121. The shell 11 is wrapped around the outside of the coil assembly 12 to perform plastic sealing protection on the coil assembly 12. The shell 11 is sealed and installed on the outside of the valve seat 200 and blocks the installation port. The first end of the valve core assembly 2 always extends out of the coil assembly 12 and the shell 11, and the second end of the valve core assembly 2 is located in the central through hole. The specific structure of the coil assembly 12 and the plastic sealing of the coil assembly 12 by the shell 11 can be set with reference to the prior art. This is not the focus of the present utility model and will not be repeated here.

[0076] The electromagnetic drive mechanism 1 also includes a sleeve 13, which includes a main cylinder portion 131 with one end open and the other end closed, the main cylinder portion 131 is inserted in the central through hole and its opening is away from the driving shaft assembly 3, and the valve core assembly 2 is slidably inserted in the main cylinder portion 131; the opening periphery of the main cylinder portion 131 extends outward with a mounting plate portion 132, and the mounting plate portion 132 is arranged on the end surface of the second end of the shell 11 and connected to the shell 11. The seal is arranged between the shell 11 and the mounting plate portion 132. The matching structure between the sleeve 13, the coil assembly 12, and the shell 11 can be set with reference to the prior art. This is not the focus of the present utility model and will not be repeated here.

[0077] When the solenoid valve 100 is in a closed state, the valve core assembly 2 is in a closed position, and the second end of the valve core assembly 2 is spaced apart from the bottom of the main cylinder 131 so that a gap is formed between the second end of the valve core assembly 2 and the bottom of the main cylinder 131 for the valve core assembly 2 to slide. At the same time, the bottom of the main cylinder 131 limits the movement of the valve core assembly 2 in the direction toward the pressing member 41, that is, when the second end of the valve core assembly 2 is pressed against the bottom of the main cylinder 131, the valve core assembly 2 is in an open position, and the valve core assembly 2 is restricted from continuing to slide in the direction of the pressing member 41.

[0078] The valve core assembly 2 includes a valve shaft 21 and a blocking member 22. The valve shaft 21 is slidably inserted into the sleeve 13, and the valve shaft 21 is a magnetic conductive metal member, so that after the coil assembly 12 is energized, the valve shaft 21 can move in a direction away from the pressing member 41 under the action of the magnetic field of the coil assembly 12; the blocking member 22 is installed at the first end of the valve shaft 21, and the blocking member 22 is an elastic structure such as elastic rubber or silicone to achieve blocking of the valve port 204.

[0079] Furthermore, the valve core assembly 2 further includes a blocking seat detachably connected to the first end of the valve shaft 21, and the blocking member 22 is mounted on the blocking seat, and the blocking seat is located outside the sleeve 13. The specific structural form of the blocking member 22 and the matching structure between the blocking member 22, the blocking seat and the valve shaft 21 can be designed with reference to the existing structure, and this embodiment does not limit or elaborate on this.

[0080] The solenoid valve 100 also includes a valve core elastic member 7, which is sleeved on the outside of the plug seat 23, and one end of the valve core elastic member 7 abuts against the end face of the shell 11, and the other end abuts against the sealing member 22. The valve core elastic member 7 is always in a compressed state to apply an elastic force to the sealing member 22 to keep it away from the pressing member 41, thereby ensuring that when the electromagnetic drive mechanism 1 is powered off, the sealing member 22 can be pressed against the end face of the valve port 204 under the pressing action of the valve core elastic member 7, thereby ensuring the reliability of the sealing of the valve port 204.

[0081] The first end of the shell 11 has a sliding cavity 116 coaxial with the central through hole, the movable shaft assembly 3 is slidably inserted in the first end of the shell 11, and the first end of the movable shaft assembly 3 is limitedly movable in the sliding cavity 116, and the second end of the movable shaft assembly 3 extends out of the first end of the shell 11 and cooperates with the pressing member 41.

[0082] The moving shaft assembly 3 includes a shaft body 31 and a magnetic assembly 32. The shaft body 31 is slidably arranged in the housing 11, and the first end of the shaft body 31 is located in the sliding cavity 116 and connected to the magnetic assembly 32. The second end of the shaft body 31 extends out of the housing 11 and cooperates with the pressing member 41. The magnetic assembly 32 is used to adsorb the valve shaft 21, and the magnetic assembly 32 is restricted from passing through the sliding cavity 116 to achieve the limit of the sliding of the moving shaft assembly 3 relative to the housing 11. This structural setting of the moving shaft assembly 3 can increase the area of ​​the magnetic assembly 32 while reducing the size of the shaft body 31, thereby improving the magnetic attraction reliability of the magnetic assembly 32 to the valve core assembly 2. At the same time, this setting makes it unnecessary for the shaft body 31 to be made of magnet 321-like materials, which is conducive to the cooperation between the shaft body 31 and the pressing member 41. In other embodiments, the shaft body 31 can be made of magnetic material.

[0083] In order to improve the installation convenience of the magnetic attraction component 32 on the shaft body 31, the magnetic attraction component 32 is sleeved on the shaft body 31. In other embodiments, the magnetic attraction component 32 can also be fixed to the end of the shaft body 31 through other installation structures.

[0084] In one embodiment, the shaft body 31 is provided with a first limiting component 311 and a second limiting component 33 at intervals along the axial direction. At least one of the first limiting component 311 and the second limiting component 33 is detachably connected to the shaft body 31. The magnetic attraction component 32 is limitedly installed between the first limiting component 311 and the second limiting component 33 to prevent the magnetic attraction component 32 from moving axially relative to the shaft body 31, thereby ensuring that the magnetic attraction component 32 and the shaft body 31 can move synchronously when the magnetic attraction component 32 adsorbs the valve core component 2.

[0085] In one embodiment, the first position-limiting component 311 is formed by the outer wall of the end of the shaft body 31 protruding outward to simplify the processing of the first position-limiting component 311, and the second position-limiting component 33 is detachably sleeved on the shaft body 31. Further, an annular groove is provided on the shaft body 31, and the second position-limiting component 33 is clamped in the position-limiting groove to prevent the second position-limiting component 33 from moving axially relative to the shaft body 31, thereby ensuring the convenience of setting the second position-limiting component 33.

[0086] In other embodiments, the first limiting component 311 can be a limiting pin passed through the shaft body 31, or a limiting nut threadedly engaged with the shaft body 31, and the second limiting component 33 can be but is not limited to a retaining ring, a limiting screw or other structures capable of achieving limiting.

[0087] The magnetic attraction component 32 includes a magnet 321, which is sleeved on the shaft 31 and used to attract the valve core component 2. In one embodiment, in order to enhance the magnetic attraction effect of the magnetic attraction component 32 on the valve core component 2, a magnetic seat 322 is also sleeved on the shaft 31, and the magnet 321 is installed between the magnetic seat 322 and the first limiting component 311, and the magnetic seat 322 is clamped between the magnet 321 and the second limiting component 33. The magnetic seat 322 is made of metal material to enhance the magnetic field generated by the magnet 321, thereby enhancing the magnetic attraction force on the valve shaft 21 without requiring the magnetic attraction component 32 to be larger in size. Furthermore, the magnetic attraction component 32 and the magnetic seat 322 are disc-shaped structures with equal outer diameters, and the diameter of the magnetic attraction component 32 is slightly smaller than the diameter of the sliding cavity 116.

[0088] In order to improve the matching reliability between the moving shaft assembly 3 and the valve core assembly 2, in one embodiment, a clearance opening is provided at the bottom of the sliding cavity 116 at one end facing the central through hole. When the moving shaft assembly 3 is in the adsorption position, the first end of the shaft body 31 extends into the clearance opening and can abut against the sleeve 13 to shorten the distance between the magnetic suction assembly 32 and the valve shaft 21, thereby ensuring the magnetic suction effect of the magnetic suction assembly 32 on the valve shaft 21 and reducing the requirements for the magnetic suction force of the magnetic suction assembly 32. In other embodiments, the sliding cavity 116 can also be completely closed at one end facing the valve core assembly 2, and the end of the shaft body 31 abuts against the bottom of the sliding cavity 116 to limit the maximum stroke of the moving shaft assembly 3 moving toward the valve core assembly 2.

[0089] In one embodiment, when the moving shaft assembly 3 is in the adsorption position, the magnetic attraction assembly 32 abuts against the cavity wall of the sliding cavity 116 on the side facing the valve core assembly 2 or has a small gap therebetween; when the moving shaft assembly 3 is in the separation position, the second limiting component 33 abuts against the cavity wall of the sliding cavity 116 away from the valve core assembly 2, thereby preventing the magnetic attraction assembly 32 from colliding with the cavity wall of the sliding cavity 116 and causing damage to the magnetic attraction assembly 32; at the same time, it also ensures that the position between the separation position and the valve core assembly 2 satisfies that the moving shaft assembly 3 will not adsorb the valve core assembly 2 upward, while reducing the size of the sliding cavity 116.

[0090] It is worth noting that when the solenoid valve 100 is in the disconnected state, the valve core elastic member 7 applies an elastic force to the valve core assembly 2 to move it away from the moving shaft assembly 3. The valve core assembly 2 may also have an opposite magnetic attraction force applied to it by the moving shaft assembly 3. At this time, when the valve core assembly 2 is set in the vertical direction, the valve core assembly 2 is also affected by gravity. At this time, it is sufficient to satisfy that the combined force of the elastic force received by the valve core assembly 2 and the gravity is greater than the magnetic attraction force received by the valve core assembly 2.

[0091] In order to improve the convenience and reliability of the cooperation between the moving shaft assembly 3 and the pressing member 41, in one embodiment, a sliding limit cavity 414 is provided on the pressing member, and the second end of the shaft body 31 is slidably inserted in the sliding limit cavity 414 to realize the sliding of the pressing member relative to the shaft body 31. The sliding limit cavity 414 has a first cavity wall and a second cavity wall that are relatively arranged along the extension direction of the shaft body 31, and the second end of the shaft body 31 is limited between the first cavity wall and the second cavity wall. By slidingly connecting the pressing member with the moving shaft assembly 3, when the moving shaft assembly 3 moves to the position of adsorbing the valve core assembly 2, when the pressing member moves away from the valve core assembly 2 and resets, the moving shaft assembly 3 may not move with the pressing member, so that the moving shaft assembly 3 can be stably and reliably maintained at the adsorption position adsorbed with the valve core assembly, thereby shortening the required running stroke of the valve core assembly 2 and simplifying the matching structure of the valve core assembly 2, the moving shaft assembly 3 and the electromagnetic drive mechanism 1.

[0092] In order to improve the installation reliability and disassembly convenience of the second end of the moving shaft assembly 3 in the sliding limit cavity 414. A rod through hole is opened through the first cavity wall, and a stopper 34 is provided at one end of the shaft body 31 away from the magnetic attraction assembly 32. The stopper 34 is located in the sliding limit cavity 414 and is restricted from passing through the rod through hole. The stopper 34 is preferably detachably connected to the shaft body 31 to improve the assembly convenience of the pressing member and the moving shaft assembly 3. The stopper 34 can be, but is not limited to, a structure such as a snap ring.

[0093] In one embodiment, when the solenoid valve 100 is in a closed state, the stop component 34 abuts against the first cavity wall, thereby preventing the pressing member from moving relative to the movable shaft assembly 3 under the elastic force of the pressing reset member 42, that is, the abutment between the stop component 34 and the first cavity wall limits the movement of the pressing member away from the electromagnetic drive mechanism 1, thereby improving the setting stability and reliability of the pressing assembly.

[0094] Furthermore, when the solenoid valve 100 is in a closed state, the magnetic attraction assembly 32 abuts against the cavity wall of the sliding cavity 116 at one end away from the valve core assembly 2, thereby limiting the movement of the movable shaft assembly 3 in the direction away from the valve core assembly 2 by the cavity wall of the sliding cavity 116, while the movement of the movable shaft assembly 3 in the direction toward the valve core assembly 2 is limited by the elastic force applied by the pressing and resetting member 42. The movable shaft assembly 3 can only be driven to move in the direction toward the valve core assembly 2 when the external resistance force overcomes the elastic force of the pressing and resetting member 42.

[0095] In one embodiment, a pressing elastic member 43 is provided in the sliding limit cavity 414, and the pressing elastic member 43 can apply an elastic force to the movable shaft assembly 3 to make it move toward the valve core assembly 2, so that when the pressing member is pressed in the direction toward the electromagnetic drive mechanism 1, the movable shaft assembly 3 can move in the direction toward the valve core assembly 2 under the pressing action of the pressing elastic member 43, so that when the pressing member 41 is pressed, the pressing member 41 actuates the movable shaft assembly 3; at the same time, this arrangement prevents the second end of the movable shaft assembly 3 from colliding with the second cavity wall, thereby reducing the noise during the operation of the solenoid valve 100; furthermore, the arrangement of the pressing elastic member 43 enables the pressing elastic member 43 to apply an elastic force to the pressing member 41 to make it move away from the electromagnetic drive mechanism 1 after the pressing member 41 is released, which is beneficial to the resetting of the pressing member 41, and at the same time, it is beneficial to keep the movable shaft assembly 3 stable in the adsorption position by the pressing of the pressing elastic member 43 on the movable shaft assembly 3.

[0096] When the moving shaft assembly 3 is in the adsorption position and the pressing member 41 is released, the pressing member 41 is reset to the second position, and the second end of the moving shaft assembly 3 abuts against the first cavity wall to prevent the moving shaft assembly 3 and the pressing member 41 from sliding relative to each other under the elastic force of the pressing elastic member 43 and the pressing and resetting member 42, thereby ensuring the setting stability of the pressing member 41 and the moving shaft assembly 3.

[0097] In one embodiment, when the solenoid valve 100 is in an open state, the magnetic attraction force between the magnetic attraction assembly 32 and the valve core assembly 2 is greater than the sum of the elastic restoring force of the pressing elastic member 43 and the restoring force of the pressing reset member 42, so as to prevent the movable shaft assembly 3 from moving in a direction away from the valve core assembly 2 under the combined action of the pressing elastic member 43 and the pressing reset member 42, thereby causing the valve core assembly 2 to separate from the movable shaft assembly 3. When the coil assembly 12 is energized, the valve core assembly 2 moves in a direction away from the movable shaft assembly 3, and the magnetic attraction force between the valve core assembly 2 and the movable shaft assembly 3 is reduced, so that the force applied by the movable shaft assembly 3 to the pressing member 41 is reduced, and the pressing member 41 continues to move in a direction away from the valve core assembly 2 under the action of the pressing reset member 42 and simultaneously drives the movable shaft assembly 3 to move in a direction away from the valve core assembly 2 until the movable shaft assembly 3 abuts against the side wall of the sliding cavity 116 away from the valve core assembly 2, that is, the pressing member 41 is reset to the initial position, and the movable shaft assembly 3 is reset to the separation position.

[0098] like Figure 5 and Figures 9 to 11As shown, in one embodiment, in order to improve the reliability of the solenoid valve 100 and the gas valve, the solenoid valve 100 further includes a position detection member 6, the position detection member 6 is connected to the position detection circuit, and a trigger component 3221 is provided on the movable shaft assembly 3, and the trigger component 3221 can trigger the position detection member 6 to conduct the position detection circuit when the movable shaft assembly 3 is in the adsorption position. By providing the position detection member 6, the position of the movable shaft assembly 3 can be judged, thereby judging whether the solenoid valve 100 is in an open state, which is conducive to realizing the intelligent control of the gas valve and the solenoid valve 100. Specifically, a detection circuit is provided on the control board 500, and the position detection member 6 is electrically connected to the control board 500, so that the position detection member 6 is connected to the detection circuit.

[0099] In order to simplify the structure of the detection circuit conduction, in one embodiment, two position detection members 6 are arranged at intervals along the circumference of the electromagnetic drive mechanism 1, and the first ends of the two position detection members 6 are both connected to the position detection circuit. When the movable shaft assembly 3 is in the adsorption position, the second ends of the two position detection members 6 are electrically connected, and when the movable shaft assembly 3 is in the separation position, the position detection circuit is disconnected between the second ends of the two position detection members 6. This arrangement enables the first ends of the two position detection members 6 to be electrically connected to the control board 500, and the second ends of the two position detection members 6 to be electrically connected through the trigger component 3221, so that the conduction of the position detection circuit can be realized, the conduction setting of the position detection circuit is simplified, and the reliability of the conduction control of the position detection circuit is improved.

[0100] In other embodiments, the trigger component 3221 may be incorporated into the position detection circuit via a wire structure or other conductor structure, thereby enabling the position detection circuit to be turned on by contact between the trigger component 3221 and a single position detection component 6, and enabling the position detection circuit to be disconnected by separation of the trigger component 3221 from the single position detection component 6.

[0101] In one embodiment, the shaft 31 is made of metal material, and when the pressing member 41 is in the first position, the timing trigger member 5, the conductive structure 4121, the shaft 31, the trigger component 3221 and a position detection member 6 are sequentially connected in series to the timing trigger circuit to turn on the timing trigger circuit. That is, under this setting, the timing trigger circuit is turned on by the cooperation of the timing trigger member 5 and the position detection member 6 and by facilitating the conductivity of the metal shaft 31, thereby simplifying the structure of the solenoid valve 100, improving the utilization of the remaining structures in the solenoid valve 100, and reducing the improvement cost of the solenoid valve 100.

[0102] In another embodiment, two position detection members 6 are arranged at intervals along the circumference of the electromagnetic drive mechanism 1, and the first ends of the two position detection members 6 are both connected to the position detection circuit. When the movable shaft assembly 3 is in the adsorption position, the second ends of the two position detection members 6 are electrically connected, and when the movable shaft assembly 3 is in the separation position, the position detection circuit is disconnected between the second ends of the two position detection members 6. That is, under this setting, the position detection member 6 and the timing trigger member 5 are separately arranged, the position detection circuit and the timing trigger circuit are separated, and the timing trigger member 5 realizes the on-off of the timing trigger circuit through the conduction between the two timing trigger members 5 through the conductive structure 4121, and realizes the disconnection of the technical trigger circuit through the disconnection between the second ends of the two timing trigger members 5.

[0103] In one embodiment, the magnet 321 is conductive, and the end surface of the magnet 321 facing the valve core assembly 2 forms a trigger component 3221. When the movable shaft assembly 3 is in the adsorption position, the trigger component 3221 presses against the second end of the position detection member 6. Therefore, when the movable shaft assembly 3 moves toward the valve core to the trigger position, the magnet 321 contacts the second end of the position detection member 6, so that the electrical conduction between the position detection member 6 and the trigger component 3221 can be achieved, the area of ​​the trigger component 3221 is increased, the contact reliability of the trigger component 3221 and the position detection member 6 is improved, and the structure is simplified.

[0104] In another embodiment, when the movable shaft assembly 3 is in the adsorption position, the second end of the position detection member 6 contacts the shaft body 31, so that the second ends of the two position detection members 6 are electrically connected through the shaft body 31, and the magnet 321 can be made of a conductive material or a non-conductive material. In another embodiment, when the movable shaft assembly 3 is in the adsorption position, the second end of the position detection member 6 is pressed by the magnet 321 to contact the sleeve 13, that is, the second ends of the two position detection members 6 are electrically connected through the sleeve 13, and when the movable shaft assembly 3 is away from the adsorption position, the second end of the position detection member 6 is separated from the bottom of the sleeve 13 to achieve the separation between the second ends of the two position detection members 6.

[0105] In order to further improve the contact reliability between the trigger component 3221 and the position detection component 6, the second end of the position detection component 6 has a touched portion 61, which extends out of the end surface of the coil assembly 12 and is arranged obliquely relative to the end surface of the coil assembly 12. This arrangement allows the end surface of the magnet 321 to press against the touched portion 61 when the movable shaft assembly 3 moves toward the valve core assembly 2 to the adsorption position, so that the triggered portion 61 can be deformed toward the position close to the end surface of the coil assembly 12, thereby allowing the touched portion 61 to stably and reliably contact the end surface of the magnet 321, avoiding the problem of poor contact between the touched portion 61 and the trigger component 3221 caused by processing errors and the like, thereby improving the reliability of the solenoid valve 100.

[0106] The position detection member 6 also includes a main body 62 connected to the touched portion 61, and one end of the main body 62 away from the touched portion 61 extends out of the housing 11 and is electrically connected to the control board 500. In order to further improve the reliability of the setting of the position detection member 6, the coil support 121 is provided with a mounting groove 1211 at one end facing the moving shaft assembly 3, and the mounting groove 1211 is arranged in a one-to-one correspondence with the position detection member 6. The first end of the position detection member 6 extends out of the mounting groove 1211 to access the position detection circuit, and the second end of the position detection member 6 extends out of the end face of the coil support 121 to abut against the trigger component 3221. The part of the position detection member 6 accommodated in the mounting groove 1211 is plastic-sealed by the housing 11. This arrangement can realize the installation limit of the position detection member 6 through the setting of the mounting groove 1211, and realize the reliability of the setting of the position detection member 6; at the same time, the housing 11 partially plastic-seales the position detection member 6, so as to realize the wrapping protection of the position detection member 6 and improve the use safety of the position detection member 6.

[0107] Specifically, the main body 62 includes a first portion and a second portion vertically connected, the first portion extending along the axial direction of the valve core assembly 2 and connected to the touched portion 61 , and the second portion extending along the radial direction of the valve core assembly 2 and the end thereof extending out of the housing 11 .

[0108] like Figure 8 and Fig.11 As shown, in order to improve the setting safety of the timing trigger 5, the timing trigger 5 has a trigger end 51 and a wiring end 53 which are arranged opposite to each other, and both the trigger end 51 and the wiring end 53 are exposed to the housing 11, the trigger end 51 can be electrically connected to the conductive structure 4121, and the wiring end 53 is used to access the timing trigger circuit, and the timing trigger 5 is at least partially located inside the housing 11. By partially locating the timing trigger 5 inside the housing 11, the timing trigger 5 can be shielded and protected, and the probability of the timing trigger 5 shaking can be reduced, thereby improving the setting stability of the timing trigger 5.

[0109] In one embodiment, the trigger end 51 is exposed on the first end surface of the housing 11, so when the pressing member 41 is pressed in the direction toward the housing 11, the contact between the pressing member 41 and the housing 11 can simultaneously achieve the contact between the trigger end 51 and the conductive structure 4121, simplifying the matching structure between the trigger end 51 and the conductive structure 4121. Furthermore, the wiring terminal 53 is exposed on the circumferential outer side wall of the housing 11, so as to facilitate the electrical connection between the wiring terminal 53 and the control board 500.

[0110] In order to improve the installation convenience of the timing trigger 5 on the housing 11, the housing 11 includes a main housing and a mounting sleeve 114. The main housing is wrapped around the coil assembly 12. The mounting sleeve 114 is detachably mounted on one end of the main housing away from the second end of the valve core assembly 2. The moving shaft assembly 3 is slidably matched with the main housing, the pressing member 41 is slidably matched with the mounting sleeve 114, and the timing trigger 5 is at least partially sandwiched between the mounting sleeve 114 and the main housing. This arrangement can realize the disassembly and assembly of the timing trigger 5 inside the housing 11 through the disassembly and assembly between the main housing and the mounting sleeve 114, thereby improving the disassembly and assembly convenience of the timing trigger 5; at the same time, this arrangement enables the structure of the housing 11 and the pressing member 41 to cooperate and the structure of the housing 11 and the moving shaft assembly 3 to be located on the main housing and the mounting sleeve 114, respectively, thereby reducing the processing difficulty of the housing 11 and improving the convenience of the housing 11 and the pressing member 41 and the moving shaft assembly 3.

[0111] In order to further improve the reliability of the installation of the timing trigger 5, a positioning groove 115 is provided on the outer wall of the main housing, the shape of the positioning groove 115 is adapted to the outer shape of the main housing, the shape of the timing trigger 5 is adapted to the shape of the positioning groove 115, and the timing trigger 5 is accommodated in the positioning groove 115. By providing the positioning groove 115, the installation of the timing trigger 5 on the main housing can be positioned, the reliability of the installation position of the timing trigger 5 relative to the main housing is ensured, and the interference of the setting of the timing trigger 5 on the connection between the main housing and the installation sleeve 114 is reduced.

[0112] In one embodiment, the main housing is threadedly connected to the mounting sleeve 114, thereby improving the connection stability and reliability between the main housing and the mounting sleeve 114. Specifically, an external thread is provided on the outer wall surface of the main housing, and an internal thread is provided on the inner wall surface of one end of the mounting sleeve 114, and the external thread is screwed with the internal thread. The wiring terminal 53 is exposed at one end of the mounting sleeve 114 away from the pressing member 41 to ensure the convenience of connecting the wiring terminal 53 with the control board 500.

[0113] In one embodiment, the mounting sleeve 114 includes an inner sleeve 1143 and an outer sleeve 1141 coaxially and spaced apart outside the inner sleeve 1143. The mounting sleeve 114 also includes a connecting plate 1142 connected between the inner wall surface of the outer sleeve 1141 and one end of the inner sleeve 1143. The inner wall surface of the inner sleeve 1143, the surface of the connecting plate 1142 facing the valve core assembly 2, and the inner wall surface of the outer sleeve 1141 are sequentially connected to form a mating surface. The shape of the outer peripheral surface of the first end of the main shell is adapted to the shape of the mating surface. The timing trigger 5 has an extension section 52 located between the trigger end 51 and the wiring end 53. The extension section 52 is sandwiched between the mating surface and the outer surface of the main shell. That is, the extension section 52 has three sub-extensions that are sequentially connected vertically, and each sub-extension is sandwiched between the mounting sleeve 114 and the main shell. The mounting sleeve 114 and the matching structure between the mounting sleeve 114 and the timing trigger member 5 restrict the timing trigger member 5 in all upward positions, thereby effectively ensuring the setting reliability of the timing trigger member 5. At the same time, this setting can reduce the size of the first end of the main shell and reduce the difficulty of processing the main shell.

[0114] Furthermore, both ends of the outer sleeve 1141 extend axially to form a connecting plate portion 1142, one end of which is sleeved on the outside of the main shell and connected to the main shell, and the other end is surrounded by the connecting plate portion 1142 and the inner sleeve 1143 to form a groove 1144, the notch of the groove 1144 is away from the valve core assembly 2, and the push-reset member 42 is pressed in the groove 1144 to facilitate the cooperation between the push-reset member 42 and the shell 11 and avoid the push-reset member 42 from being out of contact with the shell 11.

[0115] In one embodiment, the main shell includes a plastic-encapsulated shell portion 111 with openings at both ends, and the plastic-encapsulated shell portion 111 is wrapped around the outside of the coil assembly 12 in the form of plastic sealing. The main shell also includes a first end cover 112 and a second end cover 113, the first end cover 112 is connected to the first end opening of the plastic-encapsulated shell portion 111 and is slidably matched with the shaft body 31 of the dynamic shaft assembly 3, and the first end cover 112 and the plastic-encapsulated shell portion 111 are surrounded to form a sliding cavity 116; the second end cover 113 is detachably connected to the second end opening of the plastic-encapsulated shell portion 111 and is matched with the valve seat 200, and the first end of the valve core assembly 2 passes through the first end cover 112. This arrangement is conducive to the processing and forming of the shell 11, and is conducive to the disassembly and assembly of the dynamic shaft assembly 3 in the sliding cavity 116, and improves the convenience of the matching structure setting of the shell 11, the dynamic shaft assembly 3 and the pressing assembly 4.

[0116] like Figures 9 to 13As shown, the first end cover 112 includes an end plate portion 1121 and a cylindrical portion 1122 which are coaxially connected. The shaft body 31 slides through the cylindrical portion 1122. The cylindrical portion 1122 is protrudingly arranged on the side of the end plate portion 1121 away from the valve core assembly 2, thereby increasing the sliding fit length between the housing 11 and the shaft body 31, and ensuring the reliability and smoothness of the sliding of the movable shaft assembly 3 relative to the housing 11. The cylindrical portion 1122 is sleeved and matched with the inner sleeve portion 1143, and the connecting plate portion 1142 is attached to one end of the end plate portion 1121 away from the valve core assembly 2. That is, the mounting groove 1211 extends from the outer wall surface of the cylindrical portion 1122 to the outer wall surface of the plastic-encapsulated shell portion 111.

[0117] In one embodiment, when the pressing member 41 is in the initial position, the trigger end 51 elastically protrudes from the second end surface of the housing 11, and when the pressing member 41 is in the first position, the conductive structure 4121 presses against the trigger end 51. Therefore, when the pressing member 41 is in the first position, the trigger end 51 is slightly deformed under the pressing action of the pressing member 41, thereby ensuring the contact reliability between the trigger member and the conductive structure 4121, and avoiding the problem of poor contact between the trigger end 51 and the conductive structure 4121 due to processing errors and other reasons.

[0118] In one embodiment, the pressing member 41 includes a conductive inner cylinder 412 and an insulating outer cylinder 411 sleeved on the outer side of the conductive inner cylinder 412, the insulating outer cylinder 411 is slidably matched with the housing 11, the conductive inner cylinder 412 is slidably matched with the movable shaft assembly 3, and the end surface of the conductive inner cylinder 412 facing the valve core assembly 2 forms a conductive structure 4121. This arrangement is conducive to simplifying the arrangement of the conductive structure 4121, and ensuring the electrical connection stability between the conductive structure 4121 and the shaft body 31, and improving the contact reliability and contact convenience between the conductive structure 4121 and the timing trigger 5. In other embodiments, the pressing member 41 can also be basically made of plastic, and a metal conductive structure 4121 is buried at the end of the pressing member 41, and the conductive structure 4121 is electrically connected to the shaft body 31; the arrangement of the insulating outer cylinder 411 can, on the one hand, avoid the safety hazard caused by electric shock when the user presses the pressing member 41, and at the same time, it is also conducive to increasing the end surface area of ​​the pressing member 41, thereby improving the convenience of the user pressing the trigger.

[0119] In one embodiment, the inner cavity of the conductive inner cylinder 412 forms a sliding limit cavity 414, and the end of the conductive inner cylinder 412 away from the magnetic attraction component 32 is open, and the pressing member 41 also includes a cover 413, which is detachably connected to the conductive inner cylinder 412 and blocks the opening of the conductive inner cylinder 412, and the cover 413 is connected to the insulating outer cylinder 411, and the outer surface of the cover 413 is an insulating surface. This arrangement is conducive to the arrangement of the pressing elastic member 43 and the stopper component 34 in the sliding limit cavity 414, and can also prevent the conductive inner cylinder 412 from being exposed and causing the user to accidentally touch the conductive inner cylinder 412, thereby improving the disassembly and assembly performance of the solenoid valve 100 and improving the safety of the solenoid valve 100.

[0120] In one embodiment, the cover 413 has a connection portion 4131 and a flange portion 4132 protruding radially outward along the connection portion 4131, the connection portion 4131 is connected to the conductive inner cylinder 412, and the flange portion 4132 presses against one end of the insulating outer cylinder 411 away from the movable shaft assembly 3 to limit the conductive inner cylinder 412 and the cover 413 from moving relative to the insulating outer cylinder 411 in the direction toward the valve core assembly 2. Further, a limiting groove is provided on the end surface of the insulating outer cylinder 411, the flange portion 4132 is disposed in the limiting groove, and the outer surface of the cover 413 is flush with the end surface of the insulating outer cylinder 411 to ensure the flatness of the upper end of the pressing member 41, avoid the protruding edges from scratching the user, and improve the overall aesthetics of the solenoid valve 100.

[0121] In order to improve the installation reliability of the cover 413 and the conductive inner cylinder 412, the connection part 4131 is inserted into the inner side of the conductive inner cylinder 412 and screwed with the conductive inner cylinder 412. In other embodiments, the connection part 4131 and the conductive inner cylinder 412 can also be connected by snap-fitting or other detachable methods. Further, the cover 413 can be made of metal material, and the outer surface of the cover 413 is covered with an insulating layer to achieve an insulating setting of the outer surface of the cover 413.

[0122] In order to improve the matching reliability of the insulating outer cylinder 411 and the conductive inner cylinder 412, the insulating outer cylinder 411 includes a main sleeve 4111, the opening of the main sleeve 4111 faces the housing 11 and is slidably sleeved on the housing 11, a mounting through hole is provided on the end surface of the main sleeve 4111, and a positioning sleeve 4112 extends downward from the periphery of the mounting through hole, and the conductive inner cylinder 412 is inserted into the positioning sleeve 4112 to increase the matching length of the conductive inner cylinder 412 and the insulating outer cylinder 411, thereby improving the assembly stability of the conductive inner cylinder 412 and the insulating outer cylinder 411. Furthermore, the outer side wall of the conductive inner cylinder 412 is provided with a limiting convex portion 4122 protruding outward, and the limiting convex portion 4122 abuts against the end surface of the positioning sleeve 4112 to achieve the assembly positioning of the conductive inner cylinder 412 and the insulating outer cylinder 411.

[0123] This embodiment also provides a gas device, including the above-mentioned gas valve, and the gas device can be but is not limited to a gas stove. By adopting the above-mentioned gas valve, the gas supply can be shut off at a time, thereby improving the safety and reliability of the gas device; at the same time, by resetting or extending the timing, the user's need for continuous use of gas can be met, thereby improving the convenience of the gas device and enhancing the user's experience.

[0124] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A solenoid valve, characterized in that: include: An electromagnetic drive mechanism (1) comprises a coil assembly (12) and a housing (11) wrapped around the outside of the coil assembly (12); A movable shaft assembly (3) is slidably mounted on the first end of the housing (11) and is capable of slidingly switching between an adsorption position and a separation position; The valve core assembly (2) is slidably arranged on the coil assembly (12), and the first end of the valve core assembly (2) passes through the second end of the housing (11) and is used to block the valve port. The movable shaft assembly (3) in the adsorption position can magnetically adsorb the second end of the valve core assembly (2) to move in a direction toward the movable shaft assembly (3) to an open position. The electromagnetic drive mechanism (1) can drive the valve core assembly (2) to move in a direction away from the movable shaft assembly (3) to a closed position in an energized state. A pressing member (41) is slidably disposed at a first end of the housing (11) and cooperates with the movable shaft assembly (3); when the pressing member (41) is pressed from an initial position to a first position, it can actuate the movable shaft assembly (3) to slide from the separation position to the adsorption position; and a conductive structure (4121) is disposed on the pressing member (41); A pressing and restoring member (42) is used to apply an elastic force to the pressing member (41) to move the pressing member away from the valve core assembly (2), so that the pressing member (41) can return to the second position when the movable shaft assembly (3) and the valve core assembly (2) are magnetically adsorbed, or to return the pressing member (41) to the initial position and drive the movable shaft assembly (3) to return to the separation position when the electromagnetic drive mechanism (1) is powered on, and the second position is located between the initial position and the first position; A timing trigger element (5) is arranged on the housing (11) and connected to the timing trigger circuit. When the pressing element (41) reaches the first position, the timing trigger element (5) can be electrically connected to the conductive structure (4121) to turn on the timing trigger circuit.

2. The solenoid valve according to claim 1, characterized in that: Two timing trigger components (5) are arranged at intervals along the circumference of the moving shaft assembly (3); the first ends of the two timing trigger components (5) are connected to the timing trigger circuit; the second ends of the two timing trigger components (5) are electrically conductive with the conductive structure (4121) to conduct the timing trigger circuit; when the two timing trigger components (5) are separated from the conductive structure (4121), the timing trigger circuit is disconnected between the second ends of the two timing trigger components (5).

3. The solenoid valve according to claim 1, characterized in that: The solenoid valve further comprises a position detection component (6), wherein the position detection component (6) is connected to a position detection circuit, and a trigger component (3221) is provided on the movable shaft assembly (3), wherein the trigger component (3221) can trigger the position detection component (6) to conduct the position detection circuit when the movable shaft assembly (3) is in the adsorption position.

4. The solenoid valve according to claim 3, characterized in that: Two position detection members (6) are arranged at intervals along the circumference of the electromagnetic drive mechanism (1); the first ends of the two position detection members (6) are both connected to the position detection circuit; when the movable shaft assembly (3) is in the adsorption position, the second ends of the two position detection members (6) are electrically connected; when the movable shaft assembly (3) is in the separation position, the position detection circuit is disconnected between the second ends of the two position detection members (6).

5. The solenoid valve according to claim 3, characterized in that: The movable shaft assembly (3) comprises a metal shaft body (31) and a magnetic attraction assembly (32) fixedly sleeved on the shaft body (31), and the magnetic attraction assembly (32) can absorb the valve core assembly (2); When the pressing member (41) is in the first position, the timing trigger member (5), the conductive structure (4121), the shaft (31), the trigger component (3221) and a position detection member (6) are sequentially connected in series to the timing trigger circuit so that the timing trigger circuit is turned on.

6. The solenoid valve according to any one of claims 1 to 5, characterized in that: The timing trigger component (5) has a trigger end (51) and a wiring end (53) which are arranged opposite to each other. The trigger end (51) and the wiring end (53) are both exposed outside the housing (11). The trigger end (51) can be electrically connected to the conductive structure (4121). The wiring end (53) is used to connect to the timing trigger circuit. The timing trigger component (5) is at least partially located inside the housing (11).

7. The solenoid valve according to claim 6, characterized in that: When the pressing member (41) is in the initial position, the trigger end (51) elastically protrudes from the second end surface of the shell (11); when the pressing member (41) is in the first position, the conductive structure (4121) presses against the trigger end (51).

8. The solenoid valve according to claim 6, characterized in that: The housing (11) comprises a main housing and a mounting sleeve (114); the main housing is wrapped around the coil assembly (12); the mounting sleeve (114) is detachably mounted on an end of the main housing away from the second end of the valve core assembly (2); the movable shaft assembly (3) is slidably engaged with the main housing; the pressing member (41) is slidably engaged with the mounting sleeve (114); and the timing trigger member (5) is at least partially sandwiched between the mounting sleeve (114) and the main housing.

9. The solenoid valve according to claim 8, characterized in that: The outer wall surface of the main shell is provided with a positioning groove (115), the shape of the positioning groove (115) is adapted to the outer shape of the main shell, the shape of the timing trigger component (5) is adapted to the shape of the positioning groove (115), and the timing trigger component (5) is accommodated in the positioning groove (115).

10. The solenoid valve according to any one of claims 1 to 5, characterized in that: The pressing member (41) comprises a conductive inner cylinder (412) and an insulating outer cylinder (411) sleeved on the outside of the conductive inner cylinder (412); the insulating outer cylinder (411) is slidably matched with the shell (11); the conductive inner cylinder (412) is slidably matched with the movable shaft assembly (3); and the conductive inner cylinder (412) is formed on one end surface facing the valve core assembly (2) to form the conductive structure (4121).

11. The solenoid valve according to any one of claims 3 to 5, characterized in that: The movable shaft assembly (3) comprises a shaft body (31) and a magnet (321) mounted on the shaft body (31); the shaft body (31) is slidably arranged in the housing (11) and cooperates with the pressing member (41); the magnet (321) is conductive, and one end surface of the magnet (321) faces the valve core assembly (2) to form the trigger component (3221); when the movable shaft assembly (3) is in the adsorption position, the trigger component (3221) presses against the second end of the position detection member (6).

12. The solenoid valve according to any one of claims 3 to 5, characterized in that: The coil support (121) of the coil assembly (12) is provided with a mounting groove (1211) at one end facing the movable shaft assembly (3); the mounting groove (1211) is arranged in one-to-one correspondence with the position detection component (6); the first end of the position detection component (6) extends out of the mounting groove (1211) to be connected to the position detection circuit; the second end of the position detection component (6) extends out of the end surface of the coil support (121) to abut against the trigger component (3221); and the portion of the position detection component (6) accommodated in the mounting groove (1211) is plastic-sealed by the housing (11); And / or, the second end of the position detection member (6) has a touched portion (61), and the touched portion (61) extends out of the end surface of the coil component (12) and is arranged obliquely relative to the end surface of the coil component (12).

13. A gas valve, comprising a valve seat (200) and a control plate (500), wherein the valve seat (200) is provided with a valve port (204), characterized in that: It also includes a solenoid valve as described in any one of claims 1 to 12, when the valve core assembly (2) is in the closed position, the second end of the valve core assembly (2) closes the valve port (204), when the valve core assembly (2) is in the open position, the valve core assembly (2) opens the valve port (204), the control board (500) is provided with the timing trigger circuit, and the timing trigger component (5) and the coil assembly (12) are both electrically connected to the control board (500).

14. The gas valve according to claim 13, characterized in that: The gas valve further comprises an alarm, which is communicatively connected to the control panel (500), and is used to issue an alarm prompt after the timing triggered by the timing trigger circuit ends; And / or, the gas valve further comprises a housing (300), the electromagnetic drive mechanism (1) and the control panel (500) are both located inside the housing (300), the pressing member (41) extends out of the housing (300), a battery (400) is installed in the housing (300), and the battery (400) is electrically connected to the control panel (500).

15. A gas equipment, characterized in that: Comprising a gas valve as claimed in claim 13 or 14.

Images