A rotary air inlet valve for gas stove gas supply

Abstract

The invention discloses a rotary air inlet valve for gas stove gas supply, comprising a valve body and a valve core. The valve core is airtightly inserted in a valve hole provided in the valve body. The valve core has a central air hole which is a blind hole, and a gas outlet hole is provided on the side wall of the central air hole. The valve body is provided with a gas outlet output channel, and an interface matching the gas outlet hole is opened on the side wall of the valve hole for the gas outlet output channel. An external gas supply pipeline joint extending out of the valve body and communicating with the central air hole is provided at one axial end of the valve core, and a control structure for rotating the valve core relative to the valve body is also provided. By providing the control structure on the valve core, the valve core can be rotated relative to the valve body, thereby controlling the corresponding relationship between the gas outlet hole and the gas outlet output channel, and the gas stove gas is introduced and shut off through the relatively rotating valve structure. When in the gas shut-off state, the valve body and the valve core have good sealing performance, and the valve body and the valve core are relatively rotatable, so the valve body and the valve core are not easy to wear, and the service life of the rotary air inlet valve is long.

Description

Technical Field

[0001] The invention relates to the field of gas stoves, and in particular to a rotary air inlet valve used for gas stove gas supply. Background Art

[0002] Currently, gas stoves are generally embedded structures, and the stove surface occupies a large kitchen space. Therefore, for a small Chinese kitchen, designing a reversible gas stove can fully free up countertop space, allowing users to use the countertop to prepare ingredients and do some cooking that does not require a gas stove.

[0003] The Chinese patent document with the authorization announcement number CN 203464348 U discloses an electric flip burner. During the flipping process of the burner, a bracket 41 and a nozzle seat 3 are connected by hinges. The burner body 4 includes a bracket 41, and one end of the bracket 41 is hinged to the nozzle seat 3 through a positioning shaft 31. When the gas burner is in use, the ejector pipe 46 is connected to the nozzle 47 opposite to it, and the gas enters the burner. When the burner is not in use, the burner flips upward, and the ejector pipe 46 is not connected to the nozzle 47. However, when the gas stove is not in use, the nozzle 47 is not easy to seal. After the burner is flipped for a long time, the interface between the ejector pipe 46 and the nozzle 47 is easy to wear and misalign, which will lead to gas leakage, and the safe access and use of the gas cannot be guaranteed. See CN 203464348 U Chinese patent specification. Providing a gas valve that can be used to safely supply gas to a gas stove is an urgent problem to be solved. Summary of the invention

[0004] In view of the problems existing in the prior art, an object of the present invention is to provide a rotary air inlet valve for safe gas supply to a gas stove.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A rotary air inlet valve for gas stove gas supply comprises a valve body and a valve core, wherein the valve core is airtightly inserted into a valve hole provided in the valve body, the valve core has a central air hole which is a blind hole, a gas outlet hole is provided on the side wall of the central air hole, a gas outlet output channel is provided on the valve body, an interface matching the gas outlet hole is opened on the side wall of the valve hole, an external air supply pipeline joint extending out of the valve body and connected with the central air hole is provided at one axial end of the valve core, and an operating structure for rotating the valve core relative to the valve body is also provided on the valve core.

[0007] Furthermore, the rotary air inlet valve also includes a side cover, which is buckled on the valve body at the opposite end of the external air supply pipe connector, and the side cover fixes the valve core axially and rotatably in the valve hole. A part of the operating structure extends out of the side cover, and the side cover is also provided with an opening for the operating structure to rotate around the axis of the valve core. The maximum rotation angle of the operating structure in the opening is greater than the maximum rotation angle of the gas stove.

[0008] Furthermore, the external air supply pipe joint is integrally formed with the valve core and is concentric with the valve core; the external air supply pipe joint is separately formed with the valve core, and the external air supply pipe joint can be rotatably and airtightly inserted into the valve hole provided on the valve body and is concentric with the valve core.

[0009] Furthermore, the outer wall of the valve core is in the shape of a cone with a radius gradually increasing along the gas intake direction, and a spring is installed between the side cover and the conical end surface close to the side cover.

[0010] Furthermore, the operating structure is axially connected to the valve core, and the part of the operating structure that axially extends out of the side cover includes a protruding block. When the protruding block is inserted into a groove or hole that matches the cross-sectional size of the protruding block and is located on the external fixing part of the gas stove, the valve core can rotate relative to the valve body.

[0011] Furthermore, when the external air supply pipe connector is integrally formed with the valve core, the operating structure is a switch shaft fixedly mounted on the valve core, and a portion of the switch shaft extends out of the valve cover.

[0012] Further, when the external air supply pipe connector is made separately from the valve core, the operating structure includes: a valve stem radially connected to the valve core and concentric with the valve core, and a switch shaft fixedly installed on the valve stem; the valve stem is located in the valve hole between the valve core and the valve cover, and a portion of the switch shaft extends out of the valve cover.

[0013] Furthermore, the axis of the switch shaft from the fixed end to the valve stem to the portion extending out of the side cover is perpendicular to the axis of the valve stem and is in the same plane.

[0014] Furthermore, the valve core is axially provided with an annular wall connected to the valve stem, the annular wall is provided with an opening, the valve stem is provided with a boss matched with the opening, and the boss is radially higher than the outer surface of the annular wall.

[0015] Furthermore, the outer wall of the valve core is in the shape of a cone with a radius gradually increasing along the gas intake direction, and a spring is axially installed at the connection between the valve core and the valve stem.

[0016] Furthermore, the rotary air intake valve also includes a card, one end of the card with an arc-shaped opening is inserted into an annular groove on an external air supply pipe connector extending out of the valve body, so that the card can rotate in the annular groove, and the other end of the card is fixed to the outer wall of the valve body.

[0017] Furthermore, the valve body is fixedly mounted on the gas stove.

[0018] Furthermore, the valve body also includes a plurality of gas supply channels connected to the gas outlet output channel, and the gas supply channels are connected to the gas inlet pipe of the gas stove.

[0019] The rotary air inlet valve for gas stove gas supply of the present invention is provided with a control structure on the valve core so that the valve core can rotate relative to the valve body, thereby controlling the corresponding relationship between the gas outlet through hole on the valve core and the gas outlet output channel of the valve body, and realizing the gas supply and shutoff of the gas stove through the relatively rotating valve structure. When in the gas shutoff state, the valve body and the valve core have good sealing performance, and the valve body and the valve core are relatively rotatable, so the valve body and the valve core are not easy to wear, and the service life of the rotary air inlet valve is long.

[0020] When the external gas supply pipe joint and the valve core are made separately, when the gas stove rotates, part of the weight of the gas stove will not be borne by the valve core, and the valve core is not easy to wear, which further ensures the airtight connection between the valve core and the valve body and increases the service life of the rotary air intake valve; during installation, the axis of the valve core and the rotation axis of the gas stove do not need to be strictly concentric, reducing the overall installation difficulty of the rotary air intake valve.

[0021] The valve body and the external air supply pipe joint are connected by a card, so that the valve body and the card can rotate relative to the external air supply pipe joint. The card has an arc-shaped opening, and compared with the annular connector, its structure is simple and easy to install.

[0022] The outer wall of the valve core is made into a tapered shape with a radius gradually increasing along the air inlet direction, and a spring is installed between the side cover and the tapered end face close to the end cover, so that the tapered outer wall of the valve core is in close contact with the inner wall of the valve hole of the valve body, which can better ensure the airtight connection between the valve core and the valve body. Similarly, a spring is arranged between the valve core and the valve stem, so that the tapered outer wall of the valve core is in close contact with the inner wall of the valve hole of the valve body, which can better ensure the airtight connection between the valve core and the valve body.

[0023] The valve stem comprises an operating mechanism, which drives the valve stem through a switch shaft, and then the valve stem drives the valve core to rotate relative to the valve body. The valve stem, valve core and switch shaft are processed separately to facilitate installation and replacement of parts during use.

[0024] The axis of the switch shaft located in the valve body cavity is coplanar and perpendicular to the axis of the valve stem. When the switch shaft drives the valve stem and further drives the valve core to rotate relative to the valve body, the force required to drive the switch shaft is minimal.

[0025] By arranging a spring at the axial position where the valve core and the valve stem are connected, the conical outer wall of the valve core is closely attached to the inner wall of the valve hole of the valve body, which can better ensure the airtight connection between the valve core and the valve body.

[0026] The valve body is fixedly installed on the gas stove, and the gas stove drives the valve body to rotate. The valve core is also fixed by the operating structure fixed on the outside of the gas stove, thereby realizing the connection and shutoff of the gas output channel on the valve body and the gas outlet hole on the valve core, and realizing the introduction and shutoff of gas during the rotation of the gas stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of a rotary air inlet valve for supplying gas to a gas stove according to Embodiment 2 of the present invention in a connected state;

[0028] Figure 2 This is a schematic diagram of a rotary air inlet valve for supplying gas to a gas stove in a connected state according to Embodiment 3 of the present invention;

[0029] Figure 3 for Figure 2 sectional view of

[0030] Figure 4 This is a schematic diagram of a rotary air inlet valve for supplying gas to a gas stove in a closed state according to Embodiment 3 of the present invention;

[0031] Figure 5 for Figure 4 Cross-sectional view of . DETAILED DESCRIPTION

[0032] In order to clearly illustrate the design concept of the present invention, the present invention is described below in conjunction with examples.

[0033] Example 1

[0034] like Figure 1 In the example shown, the rotary air inlet valve for gas stove gas supply of the present invention comprises a valve body and a valve core. The valve core is air-tightly inserted in a valve hole provided in the valve body. The valve core has a central air hole which is a blind hole. An air outlet through hole is provided on the side wall of the central air hole. An air outlet output channel is provided on the valve body. An interface matching the air outlet through hole is opened on the side wall of the valve hole in the air outlet output channel. An external air supply pipe joint extending out of the valve body and connected with the central air hole is provided at one axial end of the valve core. An operating structure for rotating the valve core relative to the valve body is also provided on the valve core.

[0035] By arranging a manipulation structure on the valve core, the valve core can be rotated relative to the valve body, thereby controlling the corresponding relationship between the gas outlet hole on the valve core and the gas outlet output channel of the valve body, and realizing the gas supply and shutoff of the gas stove through the relatively rotating valve structure. When the gas is in the shutoff state, the valve body and the valve core have good sealing performance, and the valve body and the valve core are relatively rotatable, so the valve body and the valve core are not easy to wear, and the service life of the rotary air inlet valve is long.

[0036] Example 2

[0037] like Figure 1 In the example, the rotary air inlet valve for gas stove gas supply of the present invention comprises a valve body 1 and a valve core 2. The valve core 2 is airtightly inserted in the valve hole provided in the valve body 1. The valve core 2 has a central air hole 2-1 which is a blind hole. An air outlet through hole 2-2 is provided on the side wall of the central air hole 2-1. An air outlet output channel 1-1 is provided on the valve body 1. An interface matching the air outlet through hole 2-2 is opened on the side wall of the valve hole of the air outlet output channel 1-1. An external air supply pipeline joint 3 extending out of the valve body 1 and communicating with the central air hole 2-1 is provided at one axial end of the valve core 2. The external air supply pipeline joint 3 is made integrally with the valve core 2 and is concentric with the valve core 2. The external pipeline joint 3 and the valve core 2 rotate together relative to the valve core 1. When the two are concentrically arranged, the external pipeline joint 3 and the valve hole of the valve body 1 are connected with good airtightness.

[0038] A first sealing ring (not shown in the figure) is installed at the matching position between the external gas supply pipeline joint 3 and the valve hole of the valve body 1. The provision of the first sealing ring ensures the sealed connection between the external gas supply pipeline joint 3 and the valve body 1, and prevents gas from leaking from the connection gap between the external gas supply pipeline joint 3 and the valve body 1 after the valve body 1 rotates multiple times relative to the valve core 2 and the external gas supply pipeline joint 3.

[0039] like Figure 1 As shown, the rotary air inlet valve for gas stove gas supply also includes a card 7, one end of the card 7 with an arc-shaped opening is inserted into the annular groove 3-1 on the gas supply pipe connector 3 extending out of the valve body 1, so that the card 7 can rotate in the annular groove 3-1, and the other end of the card 7 is fixed to the outer wall of the valve body 1. The card 7 in this embodiment is composed of two folded pieces perpendicular to each other. The valve body 1 and the external gas supply pipe connector 3 are connected by the card 7, so that the valve body 1 and the card 7 can rotate relative to the external gas supply pipe connector 3. The card 7 has an arc-shaped opening. Compared with the annular connecting piece, its structure is simple and easy to install.

[0040] like Figure 1As shown, the rotary air inlet valve for gas stove gas supply also includes a side cover 5, which is buckled on the valve body at the opposite end of the external air supply pipe joint 3. The side cover 5 fixes the valve core 2 axially and rotatably in the valve hole. The valve core 2 is also provided with an operating structure for rotating it relative to the valve body 1. The side cover 5 is also provided with an opening for the operating structure to rotate around the axis of the valve core 2. The maximum rotation angle of the operating structure in the opening is greater than the maximum rotation angle of the gas stove, so that the rotation angle of the rotary air inlet valve can meet the rotation requirement of the gas stove.

[0041] In this embodiment, the operating structure is a switch shaft 4, which is fixed on the valve core 2, and a part of the switch shaft 4 extends out of the side cover 5. In the actual installation process, the part of the switch shaft 4 extending out of the opening of the side cover 5 can be fixed on the wall, and when the valve body 1 rotates, the valve core 2 and the external air supply pipeline connector 3 are fixed, thereby realizing the opening and closing of the rotary air intake valve.

[0042] The operating structure can also be axially connected to the valve core 4, and the part thereof axially extending out of the side cover 5 includes a protruding block. When the protruding block is inserted into a groove or hole on the external fixing part of the gas stove that matches the cross-sectional size of the protruding block, the valve core 2 can rotate relative to the valve body 1 to achieve the matching of the gas outlet through hole 2-2 and the gas outlet output channel 1-1. The protruding block and the externally fixed groove or hole are convenient for easy processing and realization of the structure.

[0043] like Figure 1 As shown, a second sealing ring 10 is provided at the connection between the side cover 5 and the valve body 1 to ensure the connection reliability and airtightness between the side cover 5 and the valve body 1. Preferably, the second sealing ring 10 is an O-ring made of silicone rubber.

[0044] The outer wall of the valve core 2 is a cone with a radius gradually increasing along the gas intake direction. A spring 12 is installed between the side cover 5 and the conical end surface close to the side cover 5. The conical outer wall of the valve core 2 is closely attached to the inner wall of the valve hole of the valve body 1, which can better ensure the airtight connection between the valve core 2 and the valve body 1.

[0045] The valve body 1 is fixedly installed on the gas stove. When the gas stove rotates, the valve body 1 rotates with the gas stove. The valve core 2 is fixed by fixing the operating structure with the fixed parts outside the gas stove. The rotary air intake valve is opened and closed by the rotation of the main body 1.

[0046] The valve body 1 also includes two gas supply channels 1-2 and 1-3 connected to the gas outlet output channel 1-1. The gas supply channels 1-2 and 1-3 are connected to the gas inlet pipe of the gas stove to provide gas to the gas stove.

[0047] Example 3

[0048] like Figure 2-5In the example shown, the rotary air inlet valve for gas stove gas supply of the present invention comprises a valve body 1 and a valve core 2. The valve core 2 is air-tightly inserted in a valve hole provided in the valve body 1. The valve core 2 has a central air hole 2-1 which is a blind hole. An air outlet through hole 2-2 is provided on the side wall of the central air hole 2-1. An air outlet output channel 1-1 is provided on the valve body 1. An interface matching the air outlet through hole 2-2 is opened on the side wall of the valve hole in the air outlet output channel 1-1. An external air supply pipeline connector 3 extending out of the valve body 1 and connected with the central air hole 2-1 is provided at one axial end of the valve core 2. The external air supply pipeline connector 3 is made separately from the valve core 2. The external air supply pipeline connector 3 can be rotatably air-tightly inserted in the valve hole provided in the valve body 1 and is concentric with the valve core 2. The concentric arrangement of the two makes the air-tight connection between the external pipeline connector 3 and the valve hole of the valve body 1 good, and makes it easier for the gas to enter the central air hole 2-1 of the valve core 2 through the external air supply pipeline connector 3.

[0049] When the gas stove rotates, part of the weight of the gas stove will not be borne by the valve core 2, the valve core 2 is not easy to wear, further ensuring the airtight connection between the valve core 2 and the valve body 1, and increasing the service life of the rotary air intake valve; during installation, the axis of the valve core 2 and the rotation axis of the gas stove do not need to be strictly required to be concentric, reducing the overall installation difficulty of the rotary air intake valve.

[0050] A first sealing ring 9 is installed at the fitting position between the external gas supply pipe joint 3 and the valve hole of the valve body 1. The provision of the first sealing ring 9 ensures the sealed connection between the external gas supply pipe joint 3 and the valve body 1, and prevents gas from leaking from the connection gap between the external gas supply pipe joint 3 and the valve body 1 after the valve body 1 rotates multiple times relative to the valve core 2 and the external gas supply pipe joint 3. In order to further ensure the reliability of the seal, the first sealing ring is provided at two different axial positions on the external gas supply pipe joint 3 in this embodiment. Preferably, the first sealing ring is an O-ring, and its material is silicone rubber.

[0051] like Figure 2-5 As shown, the rotary air inlet valve for gas stove gas supply also includes a card 7, one end of the card 7 with an arc-shaped opening is inserted into the annular groove 3-1 on the external gas supply pipe connector 3 extending out of the valve body 1, so that the card 7 can rotate in the annular groove 3-1, and the other end of the card 7 is fixed to the outer wall of the valve body 1. The card 7 in this embodiment is composed of two folded pieces perpendicular to each other. The external gas supply pipe connector 3 is fixedly connected to the external gas supply pipeline, and the card 7 connects the valve body 1 and the external gas supply pipe connector 3, so that the valve body 1 and the card 7 can rotate relative to the external gas supply pipe connector. The card 7 has an arc-shaped opening, and compared with the annular connector, its structure is simple and easy to install.

[0052] like Figure 2-5As shown, the rotary air inlet valve for gas stove gas supply also includes a side cover 5, which is buckled on the valve body at the opposite end of the external air supply pipe joint 3. The side cover 5 fixes the valve core 2 axially and rotatably in the valve hole. The valve core 2 is also provided with an operating structure for rotating it relative to the valve body 1. The side cover 5 is also provided with an opening for the operating structure to rotate around the axis of the valve core 2. The maximum rotation angle of the operating structure in the opening is greater than the maximum rotation angle of the gas stove, so that the rotation angle of the rotary air inlet valve can meet the rotation requirement of the gas stove.

[0053] In this embodiment, the control structure includes: a valve stem 6 radially connected to the valve core 2 and concentric with the valve core 2, and a switch shaft 4 fixedly mounted on the valve stem 6; the valve stem 6 is located in the valve hole between the valve core 2 and the side cover 5, and a portion of the switch shaft 4 extends out of the side cover 5. In the actual installation process, the portion of the switch shaft 4 extending out of the opening of the side cover 5 can be fixed on the wall, and when the valve body 1 rotates, the valve stem 6 and the valve core 2 are fixed, thereby realizing the opening and closing of the rotary air intake valve. With such a control structure setting, the valve stem 6, the valve core 2 and the switch shaft 4 are processed separately to facilitate installation and replacement of parts during use.

[0054] like Figure 3 As shown, the valve core 2 is axially provided with an annular wall connected to the valve stem 6, a notch is provided on the annular wall, and a boss matching the notch is provided on the valve stem 6, and the boss is radially higher than the outer surface of the annular wall. Through this structure, the valve stem 6 drives the valve core 2 to rotate relative to the valve body 1, and the structure is simple and easy to process and realize.

[0055] The operating structure can also be axially connected to the valve core 4, and the part thereof axially extending out of the side cover 5 includes a protruding block. When the protruding block is inserted into a groove or hole on the external fixing part of the gas stove that matches the cross-sectional size of the protruding block, the valve core 2 can rotate relative to the valve body 1 to achieve the matching of the gas outlet through hole 2-2 and the gas outlet output channel 1-1. The protruding block and the externally fixed groove or hole are convenient for easy processing and realization of the structure.

[0056] The axis of the switch shaft 4 from the fixed end of the valve stem 6 to the part extending out of the valve cover 5 is perpendicular to the axis of the valve stem 6 and in the same plane. That is to say, the axis of this part of the switch shaft 4 is also perpendicular and colinear with the axis of the valve core 2. At this time, when the switch shaft 4 drives the valve stem 6 and further drives the valve core 2 to rotate relative to the valve body 1, the force required to drive the switch shaft is minimal.

[0057] like Figure 2-5 As shown, a second sealing ring 10 is provided at the connection between the side cover 5 and the valve body 1 to ensure the connection reliability and airtightness between the side cover 5 and the valve body 1. Preferably, the second sealing ring 10 is an O-ring made of silicone rubber.

[0058] A third sealing ring 11 is provided at the matching position of the valve stem 6 and the side cover 5. It is used to alleviate the wear between the metal parts between the valve stem 6 and the side cover 5. Preferably, the second sealing ring is an O-ring, and its material is silicone rubber.

[0059] The outer wall of the valve core 2 is a cone with a gradually increasing radius along the gas intake direction, and a spring 8 is axially installed at the connection between the valve core 2 and the valve stem 6. The conical outer wall of the valve core 2 is closely attached to the inner wall of the valve hole of the valve body 1, which can better ensure the airtight connection between the valve core 2 and the valve body 1.

[0060] The valve body 1 is fixedly installed on the gas stove. When the gas stove rotates, the valve body 1 rotates with the gas stove. The valve core 2 is fixed by fixing the operating structure with the fixed parts outside the gas stove. The rotary air intake valve is opened and closed by the rotation of the main body 1.

[0061] The valve body 1 also includes two gas supply channels 1-2 and 1-3 connected to the gas outlet output channel 1-1. The gas supply channels 1-2 and 1-3 are connected to the gas inlet pipe of the gas stove to provide gas to the gas stove.

[0062] like Figure 2-3 As shown, when the gas stove needs to be used, the external state of the rotary air inlet valve is Figure 2 Similarly, when the gas stove rotates to the upper surface of the stove or cabinet, when the rotary air inlet valve is in the open state, the gas intake direction is as follows: Figure 3 As shown, the gas enters the central air hole 2-1 of the valve core 2 through the external gas supply pipe joint 3. At this time, the gas outlet hole 2-2 on the valve core 2 is connected with the gas outlet output channel 1-1 on the valve body 1. The gas passes through the gas outlet hole 2-2 and the gas outlet output channel 1-1, and then enters the gas transmission channels 1-2 and 1-3 to provide gas for the rotatable gas stove.

[0063] like Figure 4-5 As shown, when the gas stove is used, the gas stove is rotated to the top of the stove or cabinet manually or automatically, and the rotation of the gas stove drives the valve body 1 of the rotary air inlet valve to rotate. At this time, the external gas supply pipeline joint 3 and the switch shaft 4 are fixed on the fixing part outside the gas stove. The switch shaft 4 can drive the valve stem 6, and then drive the valve core 2 to rotate. Then, when the valve body 1 rotates, the valve core 2 does not rotate. In this way, during the rotation of the valve body 1, the gas outlet output channel 1-1 on the valve body 1 and the gas outlet through hole 2-2 on the valve core 2 gradually stagger. After rotating for a distance, the gas outlet output channel 1-1 and the gas outlet through hole 2-2 are completely staggered, so as to achieve the purpose of closing the rotary air inlet valve. In addition, when installing and fixing the switch shaft 4, the position of the gas outlet through hole 2-2 of the valve core 2 can be adjusted by the switch shaft 4 according to the rotation angle of the gas stove when in use and not in use, and then the switch shaft 4 is fixed.

[0064] When the opening and closing functions of the rotary air intake valve are not needed, the air outlet hole 2-2 of the valve core 2 can be enlarged, or even the valve core 2 of the rotary air intake valve can be removed from the rotary air intake valve.

[0065] It should be noted that, in addition to the specific examples given above, some of the structures may have different options. For example, when the valve core 2 and the valve stem 6 are radially matched and connected, the matching end of the valve stem 6 may be an annular wall, and a boss may be provided on the valve core 2; in order to improve the sealing performance of the valve hole of the external gas supply pipeline connector 3 and the valve body 1, multiple first sealing rings may be provided at different axial positions of the external gas supply pipeline connector 3; the shapes of the first, second, and third sealing rings may also be other shapes except for O-rings; the number of gas delivery channels on the valve body 1 connected to the gas outlet output channel 1-1 is determined according to the number of gas delivery channels required by the rotary gas stove, and may be multiple; and so on, and these are all made by those skilled in the art based on their basic skills based on their understanding of the concept of the present invention, so they will not be listed one by one here.

[0066] Finally, it is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the principles and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A rotary air inlet valve for gas stove gas supply, characterized in that: The utility model comprises a valve body and a valve core, wherein the valve core is air-tightly inserted into a valve hole provided in the valve body, the valve core has a central air hole which is a blind hole, a side wall of the central air hole is provided with an air outlet through hole, the valve body is provided with an air outlet output channel, the air outlet output channel has an interface matched with the air outlet through hole opened on the side wall of the valve hole, an external air supply pipeline joint extending out of the valve body and connected with the central air hole is provided at one axial end of the valve core, and an operating structure for rotating the valve core relative to the valve body is also provided on the valve core; the valve body is fixedly installed on the gas stove, and when the gas stove rotates, the valve body rotates together with the gas stove.

2. The rotary air inlet valve for gas stove gas supply according to claim 1, characterized in that: The rotary air inlet valve also includes a side cover, which is buckled onto the valve body at the opposite end of the external air supply pipe connector. The side cover axially and rotatably fixes the valve core in the valve hole. A portion of the operating structure extends out of the side cover. The side cover is also provided with an opening for the operating structure to rotate around the axis of the valve core. The maximum rotation angle of the operating structure in the opening is greater than the maximum rotation angle of the gas stove.

3. The rotary air inlet valve for gas stove gas supply according to claim 2, characterized in that: The external air supply pipeline joint is integrally formed with the valve core and is concentric with the valve core; or the external air supply pipeline joint is separately formed with the valve core, and the external air supply pipeline joint can be rotatably and airtightly inserted into the valve hole provided on the valve body and is concentric with the valve core.

4. The rotary air inlet valve for gas stove gas supply according to claim 3, characterized in that: The outer wall of the valve core is in the shape of a cone with a radius gradually increasing along the gas intake direction, and a spring is installed between the side cover and the conical end surface close to the side cover.

5. The rotary air inlet valve for gas stove gas supply according to claim 3, characterized in that: The operating structure is axially connected to the valve core. The portion of the operating structure that axially extends out of the side cover includes a protruding block. When the protruding block is inserted into a groove or a hole that matches the cross-sectional size of the protruding block and is located on the external fixing part of the gas stove, the valve core can rotate relative to the valve body.

6. The rotary air inlet valve for gas stove gas supply according to claim 3, characterized in that: When the external air supply pipe connector is integrally formed with the valve core, the operating structure is a switch shaft fixedly mounted on the valve core, and a portion of the switch shaft extends out of the side cover.

7. The rotary air inlet valve for gas stove gas supply according to claim 3, characterized in that: When the external air supply pipe connector is made separately from the valve core, the operating structure includes: a valve stem radially connected to the valve core and concentric with the valve core, and a switch shaft fixedly installed on the valve stem; the valve stem is located in the valve hole between the valve core and the side cover, and a portion of the switch shaft extends out of the side cover.

8. The rotary air inlet valve for gas stove gas supply according to claim 7, characterized in that: The axis of the switch shaft from the fixed end of the valve stem to the portion extending out of the side cover is perpendicular to the axis of the valve stem and is in the same plane.

9. The rotary air inlet valve for gas stove gas supply according to claim 7, characterized in that: The valve core is axially provided with an annular wall connected to the valve stem, the annular wall is provided with an opening, the valve stem is provided with a boss matched with the opening, and the boss is radially higher than the outer surface of the annular wall.

10. The rotary air inlet valve for gas stove gas supply according to claim 7, characterized in that: The outer wall of the valve core is in the shape of a cone with a radius gradually increasing along the gas intake direction, and a spring is axially installed at the connection between the valve core and the valve stem.

11. The rotary air inlet valve for gas stove gas supply according to claim 1, characterized in that: The rotary air inlet valve also includes a card, one end of the card with an arc-shaped opening is inserted into an annular groove on an external air supply pipe connector extending out of the valve body, so that the card can rotate in the annular groove, and the other end of the card is fixed to the outer wall of the valve body.

12. The rotary air inlet valve for gas stove gas supply according to claim 1, characterized in that: The valve body is fixedly mounted on the gas stove.

13. The rotary air inlet valve for gas stove gas supply according to claim 1, characterized in that: The valve body also includes a plurality of gas supply channels connected to the gas outlet output channel, and the gas supply channels are connected to the gas inlet pipe of the gas stove.

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