Gas control valve

Abstract

The present invention discloses a valve core and a gas control valve, comprising a valve core body, wherein the valve core body is a rotating body, and an annular guide groove, an arc guide groove and a guide hole are arranged on the outer circumferential surface of the valve core body, wherein the annular guide groove, the arc guide groove and the guide hole are staggered with each other, and the annular guide groove and the arc guide groove are connected through a connecting groove, and the guide hole can be within the coverage angle range of the arc guide groove and within a specific rotation angle range to connect two groups of channels through the annular guide groove, the connecting groove and the annular guide groove, such as realizing a long-fire gas supply function, and the guide hole can be within the coverage angle range of the arc guide groove and within the opening angle range of the annular guide groove to conduct another channel through the guide hole, such as realizing a main fire gas supply function, and the function of a traditional gas control valve can be realized by directly rotating the valve core by a driving rod, so that the control mechanism of the valve core can be simplified, so that the structure of the gas control valve is more reasonable and simple, and the manufacturing cost is lower.

Description

Technical Field

[0001] The invention relates to the field of gas valves, and in particular to a gas control valve. Background Art

[0002] Traditional gas control valves mostly use valve cores to control the conduction of the gas path. A conduction hole is usually opened on the valve core. However, in some control valves, it is necessary to rotate the control rod to adjust the gas volume. Continuing to rotate the valve core after it is opened will cause the channel to be closed. Therefore, a specific separation structure needs to be configured to prevent the valve core from continuing to rotate. For example, the Chinese invention patent with patent number 201821389218.0 uses a gear with a toothless section to connect the control rod and the valve core, so that the valve core is separated from the control rod after rotating to a certain angle to achieve the gas volume adjustment function. However, this type of gas control valve needs to be transmitted through a gear with a toothless section, which makes the structure more complicated and the assembly difficulty is greater. In addition, the processing technology of this type of gear is more complicated and has higher requirements, so the production cost of the gas valve is relatively high. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a valve core and a gas control valve, which can simplify the control mechanism of the valve core and make the structure of the gas control valve more reasonable and simple.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A valve core includes a valve core body, which is a rotating body. An annular guide groove, an arcuate guide groove and a guide hole are arranged on the outer circumferential surface of the valve core body. The annular guide groove, the arcuate guide groove and the guide hole are staggered with each other. The annular guide groove and the arcuate guide groove are connected by a connecting groove. The guide hole is within the coverage angle range of the arcuate guide groove.

[0006] One of the above technical solutions has at least one of the following advantages or beneficial effects: when applied, the annular guide groove can remain connected to the external channel during the entire rotation process of the valve core, and the arc guide groove can be connected to another external channel within a specific rotation range of the valve core, so that within a specific rotation angle range, the two groups of channels can be connected through the annular guide groove, the connecting groove, and the annular guide groove, such as realizing the long-fire gas supply function, and the guide hole can be within the coverage angle range of the arc guide groove. Within the opening angle range of the annular guide groove, another channel can be connected through the guide hole, such as realizing the main fire gas supply function. The function of the traditional gas control valve can be realized by directly rotating the valve core through the driving rod, which can simplify the control mechanism of the valve core, making the structure of the gas control valve more reasonable and simple, and the manufacturing cost lower.

[0007] According to some embodiments of the present invention, the guide hole is an arc-shaped structure, which enables the guide hole to achieve a continuous conduction state within a certain angle range and maintain gas conduction.

[0008] According to some embodiments of the present invention, the guide hole uses the axis of the valve core body as the rotation center, so that the guide hole will not be offset in height when the valve core rotates, thereby maintaining stable gas delivery.

[0009] According to some embodiments of the present invention, the annular guide groove uses the axis of the valve core body as the rotation center, so that the annular guide groove will not be offset in height when the valve core rotates, thereby maintaining stable gas delivery.

[0010] According to some embodiments of the present invention, the arc-shaped guide groove uses the axis of the valve core body as the rotation center, so that the arc-shaped guide groove will not be offset in height when the valve core rotates, thereby maintaining stable gas delivery.

[0011] According to some embodiments of the present invention, a lower guide hole is provided on the lower end surface of the valve core body, and the guide hole is connected with the lower guide hole to achieve downward communication of the guide holes.

[0012] A specific embodiment of the present invention also discloses a gas control valve, including a valve body and a valve core disclosed in any of the above embodiments, wherein the valve body is provided with a gas distribution channel, a permanent fire channel, a main gas outlet channel and a valve core cavity corresponding to the valve core body, the valve core body is rotatably arranged in the valve core cavity, the gas distribution channel and the permanent fire channel are connected to the valve core cavity, and the permanent fire channel is connected to the annular guide groove, the valve core body can be rotated in the valve core cavity to a position where the arc guide groove is connected to the gas distribution channel, and can be rotated to a position where the guide hole is connected to the gas distribution channel, the guide hole is connected to the main gas outlet channel, and the above valve core can realize continuous gas supply in the permanent fire channel within a specific range, and the main gas outlet channel realizes main fire gas supply within the opening range of the permanent fire channel, thereby meeting the control function of gas control and making the structure of the gas control valve more reasonable and simple, and the manufacturing cost is lower.

[0013] According to some embodiments of the present invention, a lower guide hole is provided on the lower end surface of the valve core body, the guide hole is connected to the lower guide hole, the main gas outlet channel is provided below the valve core cavity and is connected to the lower guide hole, and the main fire gas is output to the bottom of the valve body, so that the structure of the gas valve is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is one of the structural schematic diagrams of the valve core of a specific embodiment of the present invention;

[0016] Figure 2This is a second structural schematic diagram of a valve core according to a specific embodiment of the present invention;

[0017] Figure 3 It is a cross-sectional schematic diagram of a valve core according to a specific embodiment of the present invention;

[0018] Figure 4 It is a cross-sectional schematic diagram of a gas control valve according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] like Figure 1 , Figure 2As shown, a valve core includes a valve core body 100, the valve core body 100 is a rotating body, and an annular guide groove 101, an arcuate guide groove 102 and a guide hole 103 are arranged on the outer circumferential surface of the valve core body 100. The annular guide groove 101, the arcuate guide groove 102 and the guide hole 103 are mutually staggered, and the annular guide groove 101 and the arcuate guide groove 102 are connected through a connecting groove 105. The guide hole 103 is within the coverage angle range of the arcuate guide groove 102. When used, the annular guide groove 101 can be kept in communication with the external channel during the entire rotation process of the valve core, and the arcuate guide groove 102 is within a specific rotation range of the valve core. The inner portion can be connected with another external channel, so that within a specific rotation angle range, the annular guide groove 101, the connecting groove 105, and the annular guide groove 101 can connect two groups of channels, such as realizing the long-open fire gas supply function, and the guide hole 103 can be connected to another channel within the coverage angle range of the arc guide groove 102 and the opening angle range of the annular guide groove 101, such as realizing the main fire gas supply function. The function of the traditional gas control valve can be realized by directly rotating the valve core through the driving rod, which can simplify the control mechanism of the valve core, making the structure of the gas control valve more reasonable and simple, and the manufacturing cost lower.

[0024] According to some embodiments of the present invention, Figure 2 As shown, the guide hole 103 is an arc-shaped structure, which enables the guide hole 103 to achieve a continuous conduction state within a certain angle range to maintain gas conduction.

[0025] According to some embodiments of the present invention, Figure 3 As shown, the flow guide hole 103 takes the axis of the valve core body 100 as the rotation center, so that the flow guide hole 103 will not be offset in the high and low positions when the valve core rotates, thereby maintaining stable gas delivery.

[0026] According to some embodiments of the present invention, Figure 3 As shown, the annular guide groove 101 takes the axis of the valve core body 100 as the rotation center, so that the annular guide groove 101 will not be offset in height when the valve core rotates, thereby maintaining stable gas delivery.

[0027] According to some embodiments of the present invention, Figure 3 As shown, the arc guide groove 102 takes the axis of the valve core body 100 as the rotation center, so that the arc guide groove 102 will not be offset in height when the valve core rotates, thereby maintaining stable gas delivery.

[0028] According to some embodiments of the present invention, Figure 3 As shown, a lower guide hole 104 is provided on the lower end surface of the valve core body 100 , and the guide hole 103 is connected with the lower guide hole 104 , so that the guide hole 103 is connected downward.

[0029] like Figure 4As shown, a specific embodiment of the present invention further discloses a gas control valve, including a valve body 200 and a valve core disclosed in any of the above embodiments, wherein a gas distribution channel 201, a long-fire channel 202, a main gas outlet channel 203 and a valve core cavity 204 corresponding to the valve core body 100 are provided in the valve body 200, and the valve core body 100 is rotatably arranged in the valve core cavity 204, the gas distribution channel 201 and the long-fire channel 202 are connected to the valve core cavity 204, and the long-fire channel 202 is connected to the annular guide groove 101, and the valve core body 100 is rotatably arranged in the valve core cavity 204, 00 can rotate in the valve core cavity 204 to the position where the arc guide groove 102 is connected to the gas distribution channel 201, and can rotate to the position where the guide hole 103 is connected to the gas distribution channel 201. The guide hole 103 is connected to the main gas outlet channel 203. Through the above-mentioned valve core, the long-fire channel can continuously supply gas within a specific range, and the main gas outlet channel 203 can realize the main fire gas supply within the opening range of the long-fire channel, thereby meeting the control function of gas control, and making the structure of the gas control valve more reasonable and simple, and the manufacturing cost is lower.

[0030] According to some embodiments of the present invention, Figure 4 As shown, a lower guide hole 104 is provided on the lower end surface of the valve core body 100, the guide hole 103 is connected with the lower guide hole 104, the main gas outlet channel 203 is provided below the valve core cavity 204 and is connected with the lower guide hole 104, and the main fire gas is output to the bottom of the valve body 200, so that the structure of the gas valve is more reasonable.

[0031] According to some embodiments of the present invention, a control rod is provided on the valve body 200, and the control rod is coaxially arranged with the valve core, so that the control rod can directly control the valve core, making the structure of the gas valve more compact. Of course, in the specific implementation process, the control rod can also control the valve core through a full-tooth gear, which is not described in detail here.

[0032] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Gas control valve, characterized in that: It comprises a valve body (200) and a valve core; The valve core comprises a valve core body (100), the valve core body (100) is a rotating body, and an annular guide groove (101), an arc-shaped guide groove (102) and a guide hole (103) are arranged on the outer circumferential surface of the valve core body (100), the annular guide groove (101), the arc-shaped guide groove (102) and the guide hole (103) are mutually staggered, the annular guide groove (101) and the arc-shaped guide groove (102) are connected through a connecting groove (105), and the guide hole (103) is within the coverage angle range of the arc-shaped guide groove (102); The valve body (200) is provided with an air distribution channel (201), a permanent fire channel (202), a main air outlet channel (203) and a valve core cavity (204) corresponding to the valve core body (100); the valve core body (100) is rotatably arranged in the valve core cavity (204); the air distribution channel (201) and the permanent fire channel (202) are connected to the valve core cavity (204); the permanent fire channel (202) is connected to the annular guide groove (101); the valve core body (100) can be rotated in the valve core cavity (204) to a position where the arc guide groove (102) is connected to the air distribution channel (201), and can be rotated to a position where the guide hole (103) is connected to the air distribution channel (201); the guide hole (103) is connected to the main air outlet channel (203); The annular guide groove (101) takes the axis of the valve core body (100) as the rotation center; The arc-shaped guide groove (102) takes the axis of the valve core body (100) as the rotation center.

2. The gas control valve according to claim 1, characterized in that: The guide hole (103) is an arc-shaped structure.

3. The gas control valve according to claim 2, characterized in that: The flow guide hole (103) takes the axis of the valve core body (100) as the rotation center.

4. The gas control valve according to claim 1, characterized in that: A lower guide hole (104) is provided on the lower end surface of the valve core body (100), the guide hole (103) is in communication with the lower guide hole (104), and the main air outlet channel (203) is provided below the valve core cavity (204) and in communication with the lower guide hole (104).

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