Electrically-controlled and manually-controlled gas valve

Abstract

An electric control and manual control type gas valve comprises a valve body, a valve element and a bistable electromagnetic assembly, the valve body comprises a gas inlet connector, an electromagnetic valve cavity, a gas outlet cavity, a gas inlet channel, a valve element cavity with an upper opening and a lower opening, a center gas outlet pipe, an outer ring gas outlet pipe and an electromagnetic valve seat, and the electromagnetic valve element seat is provided with an annular gas cavity and a middle channel; the valve element comprises an air inlet and outlet cavity and is provided with an upper circular-arc-shaped air inlet groove, an upper radial air guide hole, a middle circular air guide hole, a bottom circular hole, a bottom circular-arc-shaped air guide hole and a bottom small air guide hole, the upper circular-arc-shaped air inlet groove is matched with the main center air guide hole and the middle channel, the middle circular air guide hole is matched with the outer ring air guide channel, and the bottom circular hole, the bottom circular-arc-shaped air guide hole and the bottom small air guide hole are communicated with the auxiliary center air guide channel; the bistable electromagnetic assembly is arranged on the electromagnetic valve seat, and the bistable electromagnetic valve element is matched with the electromagnetic valve element seat. The bistable electromagnetic assembly can control center fire and outer ring fire; when the bistable electromagnetic assembly is closed, the power of the center fire can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electric control gas valves. BACKGROUND

[0002] The prior art, Chinese patent 202021597789.0, a kind of automatic control gas valve of cooking utensil, including valve body, valve cover, valve core, valve stem and with thermocouple connected solenoid valve core assembly, the valve body is equipped with bistable solenoid valve seat, the inner cavity of bistable solenoid valve seat is communicated with the valve core cavity, the inner cavity of bistable solenoid valve seat is equipped with the air guide valve core seat that is communicated with outer ring gas outlet pipe on the bottom plate;It further includes bistable solenoid valve core assembly, bistable solenoid valve assembly is fixed on bistable solenoid valve seat, and the plugging valve core of bistable solenoid valve assembly cooperates with air guide valve core seat.There is a problem: electric control only controls outer ring fire, cannot control center fire or inner ring fire. SUMMARY

[0003] The utility model aims at: provide a kind of electric control hand control type gas valve, it has electric control center fire and outer ring fire, and the characteristic that small fire combustion of center fire.

[0004] The utility model is realized as follows: a kind of electric control hand control type gas valve, its special features are: including including valve body, valve core and bistable solenoid assembly,

[0005] Valve body includes air inlet interface, solenoid valve cavity, gas outlet cavity, air inlet passage, upper and lower opening valve core cavity, center gas outlet pipe, outer ring gas outlet pipe and solenoid valve seat, center gas outlet pipe is directly communicated with valve core cavity by main center air guide hole, and is communicated with valve core cavity by secondary center air guide passage;Solenoid valve seat is equipped with solenoid valve core seat, and annular air cavity and intermediate passage are equipped on solenoid valve core seat, annular air cavity is communicated with outer ring gas outlet pipe, and intermediate passage is communicated with valve core cavity;Solenoid valve seat is communicated with valve core cavity by outer ring air guide passage;

[0006] Valve core includes one end opening air inlet and outlet cavity, air inlet and outlet cavity is sequentially provided with upper circular-arc air inlet groove and upper radial air guide hole arranged in upper circular-arc air inlet groove, middle circular air guide hole and sequentially arranged bottom circular hole, bottom circular-arc air guide hole and bottom small air guide hole from closed end to open end;

[0007] Valve core is rotationally cooperated with valve core cavity and is sealed, upper circular-arc air inlet groove is cooperated with main center air guide hole and intermediate passage, middle circular air guide hole is cooperated with outer ring air guide passage, bottom circular hole, bottom circular-arc air guide hole and bottom small air guide hole are communicated with secondary center air guide passage;Bistable solenoid assembly is arranged on solenoid valve seat, and bistable solenoid valve core is cooperated with solenoid valve core seat.

[0008] Preferably: the center gas outlet pipe, outer ring gas outlet pipe and solenoid valve seat are in the same plane.

[0009] Preferably, the central gas outlet pipe and the main central gas guide hole and the intermediate channel are in the same plane.

[0010] Preferably, the bottom gas guide hole is provided with a counterbore.

[0011] The utility model discloses a kind of electric control hand control type gas valves, bistable electromagnetic assembly can control center fire and outer ring fire;In the state that bistable electromagnetic assembly is closed, the power of center fire can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is Figure 1 A-A view of.

[0014] Figure 3 It is Figure 2 C1-C1 view of.

[0015] Figure 4 It is Figure 2 C2-C2 view of.

[0016] Figure 5 It is Figure 2 C3-C3 view of.

[0017] Figure 6 It is Figure 1 B-B view of.

[0018] Figure 7 It is one of the utility model's perspective exploded view.

[0019] Figure 8 It is the second perspective exploded view of the utility model.

[0020] Figure 9 It is one of the utility model's valve core rotation 90 degrees cross-sectional view.

[0021] Figure 10 It is the second valve core rotation 90 degrees cross-sectional view of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0023] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be direct connection, also can be indirectly connected through intermediate medium, can be two elements inside the communication, for the ordinary skill in the art, the above-mentioned terms can be understood in the utility model with the specific meaning of the specific situation.

[0024] As Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown in the figure, a kind of electric control hand control type gas valve, including valve cover (not identified in the figure), valve stem 1, top rod 2, spring 3, transmission 4, bottom cover 5, electromagnetic valve assembly 6, valve body 7, valve core 8 and bistable electromagnetic assembly 9,

[0025] Valve body 7 includes air inlet interface 71, electromagnetic valve cavity 72, gas outlet cavity 73, air inlet channel 74, upper and lower opening valve core cavity 75, center gas outlet pipe 76, outer ring gas outlet pipe 77 and electromagnetic valve seat 78, center gas outlet pipe 76 is directly communicated with valve core cavity 75 by main center gas guide hole 761, and is communicated with valve core cavity 75 by secondary center gas guide channel 762;Electromagnetic valve core seat 781 is provided in electromagnetic valve seat 78, annular air cavity 7811 and intermediate passage 7812 are provided on electromagnetic valve core seat 781, annular air cavity 7811 and outer ring gas outlet pipe 77 are communicated, intermediate passage 7812 and valve core cavity 75 are communicated;Electromagnetic valve seat 78 is communicated with valve core cavity 75 by outer ring gas guide channel 782;The connection relationship and positional relationship of air inlet interface 71, electromagnetic valve cavity 72, gas outlet cavity 73, air inlet channel 74 and upper and lower opening valve core cavity 75 are public known technology;

[0026] Valve core 8 includes one end opening inlet and outlet cavity 81, drive cavity 82 and guide hole arranged on baffle, inlet and outlet cavity 81 is sequentially provided with upper circular arc air inlet groove 84 and upper radial gas guide hole 841 arranged in upper circular arc air inlet groove 84, middle circular gas guide hole 85 and sequentially arranged bottom circular hole 861, bottom circular arc gas guide hole 862 and bottom small gas guide hole 863 from closed end to opening end;

[0027] Chinese patent 201621229528.7, the invention name: a gas valve of gas stove;Chinese patent 201210072430.5, the invention name: a safety opening electromagnetic valve.The part not described in the embodiment is disclosed in the above patent;

[0028] Valve core 8 and valve core cavity 75 rotate and seal, upper circular arc air inlet groove 84 is matched with main center gas guide hole 761 and intermediate passage 7812, middle circular gas guide hole 85 is matched with outer ring gas guide passage 782, bottom circular hole 861, bottom circular arc gas guide hole 862 and bottom small gas guide hole 863 are communicated with vice center gas guide passage 762; bistable electromagnetic assembly 9 is arranged on electromagnetic valve seat 78, and bistable electromagnetic valve core 8 is matched with electromagnetic valve core seat 781.

[0029] The center gas outlet pipe 76, the outer ring gas outlet pipe 77 and the electromagnetic valve seat 78 are in the same plane.

[0030] The center gas outlet pipe 76 and the axis of the main center gas guide hole and the intermediate passage 7812 are in the same plane.

[0031] The gas outlet end of the bottom small gas guide hole 863 is provided with a counterbore.

[0032] Figure 3 、 Figure 4 、 Figure 5 The view of the utility model under the closed valve state,

[0033] (I) in the closed valve state, the valve core 8 rotates counterclockwise by 90 degrees, as shown in the figure, Figure 9 The upper circular arc air inlet groove 84 is communicated with the main center gas guide hole 761 and the intermediate passage 7812, the gas in the valve core 8 enters the upper radial gas guide hole 841 and then enters the upper circular arc air inlet groove 84, and the gas in the electromagnetic valve seat 78 enters the upper circular arc air inlet groove 84 through the intermediate passage 7812 and then enters the center gas outlet pipe 76; as shown in the figure, Figure 10 The middle circular gas guide hole 85 and the outer ring gas guide passage 782 are communicated, the annular air chamber 7811 and the outer ring gas outlet pipe 77 are communicated; the bistable electromagnetic assembly 9 is in the open valve state, and is in the large fire state. In the large fire state, the induction of the stove reaches the set temperature, the bistable electromagnetic assembly 9 is automatically closed, the gas in the valve core 8 enters the upper radial gas guide hole 841 and then enters the upper circular arc air inlet groove 84, and then enters the center gas outlet pipe 76, which is called long-lasting fire or microfire, and in the long-lasting fire or microfire state, the bistable electromagnetic assembly 9 can still be converted to the open valve state.

[0034] (II) in the large fire state, the valve core 8 rotates clockwise or counterclockwise to adjust the fire.

[0035] (III) in the large fire state, the valve core continues to rotate counterclockwise; the bottom circular hole 861, the bottom circular arc gas guide hole 862 and the bottom small gas guide hole 863 are matched with the vice center gas guide passage 762 to adjust the gas outlet quantity of the center gas outlet pipe; in the minimum fire state, the bistable valve is opened without gas leakage.

[0036] Closed state: the valve core closes the main center gas guide hole 761, the intermediate passage 7812 and the outer ring gas guide passage 782.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electrically controlled and manually operated gas valve, characterized in that: Includes valve body, valve core, and bistable solenoid assembly. The valve body includes an air inlet, a solenoid valve chamber, an air outlet chamber, an air inlet channel, a valve core chamber with openings at the top and bottom, a central air outlet pipe, an outer ring air outlet pipe, and a solenoid valve seat. The central air outlet pipe is directly connected to the valve core chamber through a main central air guide hole and also connected to the valve core chamber through a secondary central air guide channel. The solenoid valve seat contains a solenoid valve core seat, which has an annular air chamber and a middle channel. The annular air chamber is connected to the outer ring air outlet pipe, and the middle channel is connected to the valve core chamber. The solenoid valve seat is connected to the valve core chamber through the outer ring air guide channel. The valve core includes an inlet and outlet chamber with one end open. The inlet and outlet chambers are provided with an upper arc-shaped inlet groove, an upper radial air guide hole, a middle circular air guide hole and a bottom circular hole, a bottom arc-shaped air guide hole and a bottom small air guide hole in sequence from the closed end to the open end. The valve core rotates and seals with the valve core cavity. The upper arc-shaped air inlet groove mates with the main central air guide hole and the middle channel. The middle circular air guide hole mates with the outer ring air guide channel. The bottom circular hole, the bottom arc-shaped air guide hole, and the bottom small air guide hole are connected to the secondary central air guide channel. The bistable electromagnetic component is mounted on the solenoid valve seat, and the bistable electromagnetic valve core mates with the solenoid valve core seat.

2. The electrically controlled and manually operated gas valve according to claim 1, characterized in that: The central vent pipe, the outer ring vent pipe, and the solenoid valve seat are all in the same plane.

3. The electrically controlled and manually operated gas valve according to claim 1, characterized in that: The axes of the central air outlet pipe, the main central air guide hole, and the intermediate channel are in the same plane.

4. The electrically controlled and manually operated gas valve according to claim 1, characterized in that: The outlet end of the bottom small air guide hole is provided with a countersunk hole.

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