Automatic and manual dual-control gas valve

Abstract

An automatic manual double-control gas valve comprises a valve body, a valve core, a valve stem, a valve cover and an electromagnetic valve core assembly. The valve body comprises a valve core cavity, an electromagnetic valve cavity communicating with the valve core cavity, an air inlet interface and a gas outlet pipe. The valve core is provided with a high-fire air guide hole and a low-fire air guide hole. The valve core also comprises an electromagnet and an electric-controlled valve core. The electromagnet is fixed to the valve body, the electric-controlled valve core is connected to the iron core of the electromagnet, and the electric-controlled valve core cooperates with the bottom plate of the electric-controlled cavity to form an electric-controlled valve. In one state of the electric-controlled valve, the electric-controlled valve core fits the bottom plate of the electric-controlled cavity and closes the connection between the electric-controlled cavity and the common gas channel, i.e., the electric-controlled valve is closed. In another state of the electric-controlled valve, the electric-controlled valve core is separated from the bottom plate of the electric-controlled cavity and opens the connection between the electric-controlled cavity and the common gas channel, i.e., the electric-controlled valve is open. The setting of the electric-controlled valve can realize automatic switching between high-fire and low-fire.

Description

Technical Field

[0001] The invention relates to a gas valve of a gas appliance. Background Art

[0002] The existing technology at present is a gas valve, including a valve body, a valve core, a valve stem, a valve cover and a solenoid valve core assembly. The valve body includes a valve core cavity, a solenoid valve cavity communicating with the valve core cavity, an air inlet interface and a gas outlet pipe. The valve core is provided with a high-fire gas guide hole and a low-fire gas guide hole. When in use, the valve stem is rotated, and the valve core rotates with the valve stem, and the high-fire gas guide hole is connected to the gas outlet pipe. Then, the low-fire gas guide hole is connected to the gas outlet pipe after the valve stem is rotated further. Existing problems: It cannot adapt to automatic temperature control and automatically switch from high fire to low fire. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic manual double-control gas valve, which has the characteristics of manual and electric control power.

[0004] The present invention is implemented as follows: an automatic manual dual-control gas valve comprises a valve body, a valve core, a valve stem, a valve cover and an electromagnetic valve core assembly, the valve body comprises a valve core cavity, an electromagnetic valve cavity communicating with the valve core cavity, an air inlet interface and a gas outlet pipe, a high-fire gas guide hole and a low-fire gas guide hole are arranged on the valve core, and the special feature is that: the valve body is also provided with an outlet channel communicating with the valve core cavity, a common gas channel communicating with the gas outlet pipe, a low-fire channel, a low-fire regulating valve core arranged at the connection between the low-fire channel and the common gas channel, and an electric control cavity communicating with the outlet channel and the common gas channel,

[0005] It also includes an electromagnet and an electric control valve core.

[0006] The electromagnet is fixed to the valve body, the electric control valve core is connected to the iron core of the electromagnet, and the electric control valve core cooperates with the bottom plate of the electric control chamber to form an electric control valve. In one state of the electric control valve, the electric control valve core fits the bottom plate of the electric control chamber and closes the connection between the electric control chamber and the common gas channel, that is, the electric control valve is closed; in another state of the electric control valve, the electric control valve core is separated from the bottom plate of the electric control chamber, and the connection between the electric control chamber and the common gas channel is opened, that is, the electric control valve is opened;

[0007] When the electric control valve is in the open state, (i) the valve core is manually rotated, the high-fire gas guide hole, gas outlet channel, electric control chamber, common gas channel and gas outlet pipe of the valve core are connected, and the low-fire gas guide hole, electric control chamber, common gas channel and gas outlet pipe of the valve core are connected; (ii) the valve core is manually rotated, the high-fire gas guide hole, gas outlet channel, electric control chamber, common gas channel and gas outlet pipe of the valve core are connected, and when the electric control valve is converted from open to closed, the high-fire gas guide hole, gas outlet channel, low-fire channel, low-fire regulating valve core, common gas channel and gas outlet pipe are connected.

[0008] The automatic manual dual-control gas valve is special in that: the axis of the gas outlet channel is perpendicular to the axis of the valve core cavity, the axis of the common gas channel is parallel to the axis of the gas outlet channel; the plane where the axis of the electric control cavity is located is parallel to the plane of the small fire channel; the small fire channel is in a right angle.

[0009] The automatic and manual dual-control gas valve is special in that: under normal conditions, the electric control valve is in an open valve state.

[0010] The invention discloses an automatic and manual double-control gas valve, wherein the setting of the electric control valve can realize automatic conversion between high fire and low fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the present invention.

[0012] Figure 2 yes Figure 1 A-A view of.

[0013] Figure 3 yes Figure 1 B-B view.

[0014] Figure 4 It is a three-dimensional cross-sectional view of the present invention.

[0015] Figure 5 It is a partial three-dimensional exploded view of the present invention.

[0016] Figure 6 It is a perspective view of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, an automatic manual dual-control gas valve comprises a valve body 1, a valve core 2, a valve stem 3, a valve cover 4 and a solenoid valve core assembly 5. The valve body 1 comprises a valve core cavity 11, a solenoid valve cavity 12 communicating with the valve core cavity, an air inlet interface 13 and a gas outlet pipe 14. The valve core 2 is provided with a high-fire air guide hole 21 and a low-fire air guide hole 22.

[0019] The valve body 1 is also provided with an air outlet channel 151 communicated with the valve core cavity, a common gas channel 152 communicated with the gas outlet pipe, a small fire channel 153, a small fire regulating valve core 154 arranged at the connection between the small fire channel and the common gas channel, and an electric control cavity 16 communicated with the air outlet channel 151 and the common gas channel 152, and the electric control cavity 16 is connected with the common gas channel 152 through the electric control air outlet channel 161.

[0020] It also includes an electromagnet 6 and an electric control valve core 7.

[0021] The electromagnet 6 is fixed to the valve body 1, the electric control valve core 7 is connected to the iron core of the electromagnet 6, and the electric control valve core 7 cooperates with the bottom plate of the electric control chamber 16 to form an electric control valve. In one state of the electric control valve, the electric control valve core 7 fits with the bottom plate of the electric control chamber 16 to close the connection between the electric control chamber 16 and the common gas channel 152, that is, the electric valve is closed; in another state, the electric control valve core 7 is separated from the bottom plate of the electric control chamber 16 to open the connection between the electric control chamber 16 and the common gas channel 152, that is, the electric control valve is opened;

[0022] When the electric control valve is in the open state, the valve core 2 is manually rotated, and the high-fire gas guide hole 21, the gas outlet channel 151, the electric control cavity 16, the common gas channel 152 and the gas outlet pipe 14 of the valve core are connected. The valve core 2 is continuously rotated, and the low-fire gas guide hole 22, the electric control cavity 16, the common gas channel 152 and the gas outlet pipe 14 of the valve core are connected; that is, when the electric control valve is in the open state, rotating the valve core 2 realizes the function of a common gas valve;

[0023] When the electric control valve is in the open state, the electric control valve is connected to the circuit board of the gas appliance, and the valve core 2 is rotated. The high-fire gas guide hole 21, the gas outlet channel 151, the electric control cavity 16, the common gas channel 152 and the gas outlet pipe 14 of the valve core are connected, and the gas appliance works at high power. The gas appliance has temperature requirements, and the circuit board controls the electric control valve, and the electric control valve opening is converted into an electric control valve closing. The high-fire gas guide hole 21, the gas outlet channel 151, the low-fire channel 153, the low-fire regulating valve core 154, the common gas channel 152 and the gas outlet pipe 14 are connected, and the gas appliance works at low power.

[0024] When the electric control valve is in the closed state, no matter whether the high-fire gas guide hole 21 is connected to the gas outlet channel 151 or the low-fire gas guide hole 22 is connected to the gas outlet channel 151, both are working at low power.

[0025] The axis of the gas outlet channel 151 is perpendicular to the axis of the valve core chamber 11, and the axis of the common gas channel 152 is parallel to the axis of the gas outlet channel 151; the plane where the axis of the electric control chamber 16 is located is parallel to the plane of the small fire channel 153;

[0026] The small fire channel 153 is in a right angle shape.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, which are also considered as the protection scope of the present invention.

Claims

1. An automatic manual dual-control gas valve, comprising a valve body, a valve core, a valve stem, a valve cover and a solenoid valve core assembly, wherein the valve body comprises a valve core cavity, a solenoid valve cavity communicating with the valve core cavity, an air inlet interface and a gas outlet pipe, and a high-fire air guide hole and a low-fire air guide hole are provided on the valve core, characterized in that: The valve body is also provided with an outlet passage communicating with the valve core cavity, a common gas passage communicating with the gas outlet pipe, a small fire passage, a small fire regulating valve core provided at the connection between the small fire passage and the common gas passage, and an electric control chamber communicating with the outlet passage and the common gas passage. It also includes an electromagnet and an electric control valve core. The electromagnet is fixed to the valve body, the electric control valve core is connected to the iron core of the electromagnet, and the electric control valve core cooperates with the bottom plate of the electric control chamber to form an electric control valve. In one state of the electric control valve, the electric control valve core fits the bottom plate of the electric control chamber and closes the connection between the electric control chamber and the common gas channel, that is, the electric control valve is closed; in another state of the electric control valve, the electric control valve core is separated from the bottom plate of the electric control chamber, and the connection between the electric control chamber and the common gas channel is opened, that is, the electric control valve is opened; the electric control chamber is connected to the common gas channel through the electric control outlet channel, and the axis of the electric control outlet channel is perpendicular to the axis of the common gas channel; When the electric control valve is in the open state, the valve core is manually rotated, and the high-fire gas guide hole, gas outlet channel, electric control chamber, common gas channel and gas outlet pipe of the valve core are connected. If the valve core is rotated further, the low-fire gas guide hole, gas outlet channel, electric control chamber, common gas channel and gas outlet pipe of the valve core are connected; that is, when the electric control valve is in the open state, rotating the valve core realizes the function of a common gas valve; When the electric control valve is in the open state, the electric control valve is connected to the circuit board of the gas appliance, and the valve core is rotated. The high-fire gas guide hole, the gas outlet channel, the electric control chamber, the common gas channel and the gas outlet pipe of the valve core are connected, and the gas appliance works at high power. The gas appliance has temperature requirements, and the circuit board controls the electric control valve. The open valve of the electric control valve is converted into an electric-controlled closed valve. The high-fire gas guide hole, the gas outlet channel, the low-fire channel, the low-fire regulating valve core, the common gas channel and the gas outlet pipe are connected, and the gas appliance works at low power.

2. The automatic and manual dual-control gas valve according to claim 1, characterized in that: The axis of the gas outlet channel is perpendicular to the axis of the valve core cavity, the axis of the common gas channel is parallel to the axis of the gas outlet channel; the plane where the axis of the electric control cavity is located is parallel to the plane where the small fire channel is located; The small fire channel is right-angled.

3. The automatic and manual dual-control gas valve according to claim 1, characterized in that: Under normal conditions, the electrically controlled valve is in an open valve state.

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