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 invention relates to an electronically controlled gas valve. Background Art

[0002] At present, the existing technology, Chinese patent 202021597789.0, a gas valve for automatically controlling a stove, includes a valve body, a valve cover, a valve core, a valve stem and an electromagnetic valve core assembly connected to a thermocouple, the valve body is provided with a bistable electromagnetic valve seat, the inner cavity of the bistable electromagnetic valve seat is connected to the valve core cavity, and the bottom plate of the inner cavity of the bistable electromagnetic valve seat is provided with a gas guide valve core seat connected to the outer ring air outlet pipe; it also includes a bistable electromagnetic valve core assembly, the bistable electromagnetic valve assembly is fixed on the bistable electromagnetic valve seat, and the blocking valve core of the bistable electromagnetic valve assembly cooperates with the gas guide valve core seat. The problem is that the electric control only controls the outer ring fire, and cannot control the center fire or the inner ring fire. Summary of the invention

[0003] The purpose of the present invention is to provide an electrically controlled manually controlled gas valve, which has the characteristics of electrically controlling the center fire and the outer ring fire and can burn the center fire at a low fire.

[0004] The present invention is implemented as follows: an electric-controlled manual gas valve, which is special in that it includes a valve body, a valve core and a bistable electromagnetic component,

[0005] The valve body includes an air inlet interface, a solenoid valve cavity, an air outlet cavity, an air inlet channel, a valve core cavity with upper and lower openings, 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 cavity through the main central air guide hole and is connected to the valve core cavity through the secondary central air guide channel; a solenoid valve core seat is provided in the solenoid valve seat, and an annular air cavity and an intermediate channel are provided on the solenoid valve core seat. The annular air cavity is connected to the outer ring air outlet pipe, and the intermediate channel is connected to the valve core cavity; the solenoid valve seat is connected to the valve core cavity through the outer ring air guide channel;

[0006] The valve core includes an air inlet and outlet cavity with an opening at one end, and the air inlet and outlet cavity is provided with an upper arc-shaped air 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 arranged in sequence from the closed end to the open end;

[0007] The valve core and the valve core cavity are rotatably matched and sealed, the upper 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 arc-shaped air guide hole and the bottom small air guide hole are connected with the sub-center air guide channel; the bistable electromagnetic assembly is arranged on the electromagnetic valve seat, and the bistable electromagnetic valve core is matched with the electromagnetic valve core seat.

[0008] Preferably, the central air outlet pipe, the outer ring air outlet pipe and the solenoid valve seat are in the same plane.

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

[0010] Preferably: a countersunk hole is provided at the air outlet end of the small bottom air guide hole.

[0011] The present invention discloses an electrically controlled manually controlled gas valve, wherein a bistable electromagnetic component can control a central fire and an outer ring fire; when the bistable electromagnetic component is closed, the power of the central fire can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the present invention.

[0013] Figure 2 yes Figure 1 A-A view of.

[0014] Figure 3 yes Figure 2 C1-C1 view of the .

[0015] Figure 4 yes Figure 2 C2-C2 view.

[0016] Figure 5 yes Figure 2 C3—C3 view of the .

[0017] Figure 6 yes Figure 1 B-B view.

[0018] Figure 7 It is one of the three-dimensional exploded views of the present invention.

[0019] Figure 8 It is the second of the three-dimensional exploded diagrams of the present invention.

[0020] Fig. 9 This is one of the cross-sectional views of the valve core of the present invention after rotating 90 degrees.

[0021] Fig.10 This is the second sectional view of the valve core of the present invention after rotating 90 degrees. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, 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 direct connection, or an indirect connection 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 the present invention can be understood according to specific circumstances.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, an electric-controlled manual gas valve includes a valve cover (not shown), a valve stem 1, a push rod 2, a spring 3, a transmission member 4, a bottom cover 5, a solenoid valve assembly 6, a valve body 7, a valve core 8 and a bistable solenoid assembly 9.

[0025] The valve body 7 includes an air inlet interface 71, an electromagnetic valve cavity 72, an air outlet cavity 73, an air inlet channel 74, a valve core cavity 75 with upper and lower openings, a central air outlet pipe 76, an outer ring air outlet pipe 77 and an electromagnetic valve seat 78. The central air outlet pipe 76 is directly connected to the valve core cavity 75 through a main central air guide hole 761, and is connected to the valve core cavity 75 through a sub-central air guide channel 762; an electromagnetic valve core seat 78 is provided in the electromagnetic valve seat 78, and an annular air cavity 7811 and an intermediate channel 7812 are provided on the electromagnetic valve core seat 781. The annular air cavity 7811 is connected to the outer ring air outlet pipe 77, and the intermediate channel 7812 is connected to the valve core cavity 75; the electromagnetic valve seat 78 is connected to the valve core cavity 75 through the outer ring air guide channel 782; the connection relationship and position relationship between the air inlet interface 71, the electromagnetic valve cavity 72, the air outlet cavity 73, the air inlet channel 74 and the valve core cavity 75 with upper and lower openings are well known technologies;

[0026] The valve core 8 includes an air inlet and outlet cavity 81 with an opening at one end, a driving cavity 82 and a guide hole provided on the partition. The air inlet and outlet cavity 81 is provided with an upper arc-shaped air inlet groove 84 and an upper radial air guide hole 841, a middle circular air guide hole 85, and a bottom circular hole 861, a bottom arc-shaped air guide hole 862 and a bottom small air guide hole 863 in sequence from the closed end to the open end.

[0027] Chinese Patent 201621229528.7, Invention Name: A Gas Valve for a Gas Stove; Chinese Patent 201210072430.5, Invention Name: A Safety Opening Solenoid Valve. The parts not described in this embodiment are disclosed in the above patents;

[0028] The valve core 8 is rotatably matched and sealed with the valve core cavity 75, the upper arc-shaped air inlet groove 84 is matched with the main center air guide hole 761 and the middle channel 7812, the middle circular air guide hole 85 is matched with the outer ring air guide channel 782, the bottom circular hole 861, the bottom arc-shaped air guide hole 862 and the bottom small air guide hole 863 are connected with the sub-center air guide channel 762; the bistable electromagnetic assembly 9 is arranged on the electromagnetic valve seat 78, and the bistable electromagnetic valve core 8 is matched with the electromagnetic valve core seat 781.

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

[0030] The axes of the central air outlet pipe 76, the main central air guide hole and the intermediate channel 7812 are in the same plane.

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

[0032] Figure 3 , Figure 4 , Figure 5 The view of the present invention in the closed valve state,

[0033] (i) In the closed valve state, the valve core 8 rotates 90 degrees counterclockwise, such as Fig. 9 As shown, the upper arc-shaped air inlet groove 84 is connected with the main central air guide hole 761 and the intermediate channel 7812. The gas in the valve core 8 enters the upper arc-shaped air inlet groove 84 through the upper radial air guide hole 841, and the gas in the solenoid valve seat 78 enters the upper arc-shaped air inlet groove 84 through the intermediate channel 7812, and then enters the central air outlet pipe 76; Fig.10 As shown, the middle circular air guide hole 85 is connected to the outer ring air guide channel 782, and the annular air cavity 7811 is connected to the outer ring air outlet pipe 77; the bistable electromagnetic component 9 is in the open valve state and in the high fire state. In the high fire state, the cooker senses that the set temperature has been reached, and the bistable electromagnetic component 9 is automatically closed. The gas in the valve core 8 enters the upper circular arc air inlet groove 84 through the upper radial air guide hole 841 and then enters the central air outlet pipe 76, which is called a long-lasting fire or a low fire. In the long-lasting fire or the low fire state, the bistable electromagnetic component 9 can still be converted to an open valve state.

[0034] (ii) In the high fire state, the valve core 8 rotates clockwise or counterclockwise to adjust the fire power.

[0035] (iii) In the high fire state, the valve core continues to rotate counterclockwise; the bottom circular hole 861, the bottom arc-shaped air guide hole 862 and the bottom small air guide hole 863 cooperate with the sub-center air guide channel 762 to adjust the air output of the center air outlet pipe; in the minimum fire state, the bistable valve is opened without leakage;

[0036] Closed state: the valve core closes the main center air guide hole 761, the middle channel 7812 and the outer ring air guide channel 782.

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

Claims

1. An electric-controlled manual gas valve, characterized in that: Including valve body, valve core and bistable electromagnetic assembly, The valve body includes an air inlet interface, a solenoid valve cavity, an air outlet cavity, an air inlet channel, a valve core cavity with upper and lower openings, 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 cavity through the main central air guide hole and is connected to the valve core cavity through the secondary central air guide channel; a solenoid valve core seat is provided in the solenoid valve seat, and an annular air cavity and an intermediate channel are provided on the solenoid valve core seat. The annular air cavity is connected to the outer ring air outlet pipe, and the intermediate channel is connected to the valve core cavity; the solenoid valve seat is connected to the valve core cavity through the outer ring air guide channel; The valve core includes an air inlet and outlet cavity with an opening at one end, and the air inlet and outlet cavity is provided with an upper arc-shaped air 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 arranged in sequence from the closed end to the open end; The valve core and the valve core cavity are rotatably matched and sealed, the upper 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 arc-shaped air guide hole and the bottom small air guide hole are connected with the sub-center air guide channel; the bistable electromagnetic assembly is arranged on the electromagnetic valve seat, and the bistable electromagnetic valve core is matched with the electromagnetic valve core seat.

2. The electric-manually controlled gas valve according to claim 1, characterized in that: The central air outlet pipe, the outer ring air outlet pipe and the electromagnetic valve seat are in the same plane.

3. The electric-manually controlled 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 electric-manually controlled gas valve according to claim 1, characterized in that: A countersunk hole is arranged at the air outlet end of the bottom small air guide hole.

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