Plug valve and stove containing same

Abstract

The present invention discloses a plug valve and a stove including the same. The plug valve includes a valve body and a stopper. The stopper is disposed within the valve body and is capable of rotating relative to the valve body. A plurality of flow holes are provided on the circumferential side surface of the stopper, spaced apart along the circumferential direction of the stopper. A protrusion is mounted within the valve body. The protrusion and the air outlet of the valve body are spaced apart along the circumferential direction of the stopper, and the protrusion at least partially extends into the flow holes. During the rotation of the stopper relative to the valve body in the plug valve of the present invention, the protrusion cuts through the flow hole, scraping off some of the sealing grease within the flow hole, thereby clearing the flow hole and preventing blockage.

Description

Technical Field

[0001] The invention relates to a plug valve and a cooker comprising the same. Background Art

[0002] Gas stoves are often used in daily life. The internal ventilation pipes of the stoves are prone to blockage, and the shutter inside the stove is particularly prone to blockage. Sealing grease is used between the shutter and the plug valve body because of the need to seal. If the flow range valve is realized by directly opening holes or grooves on the shutter, the flow hole on the shutter is easily blocked. Since the aperture of the flow hole is small, the flow hole is easily blocked by sealing grease, making it difficult to realize the circulation of gas. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the flow hole opened on the stopper of the plug valve is easily blocked, and to provide a plug valve and a stove including the same.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides a plug valve, which includes a valve body and a closure member. The closure member is arranged inside the valve body and can rotate around itself relative to the valve body. A plurality of flow holes arranged at intervals along the circumferential direction of the closure member are opened on the circumferential side surface of the closure member. A protrusion is installed in the valve body. The protrusion member and the air outlet of the valve body are arranged at intervals along the circumferential direction of the closure member, and the protrusion member at least partially extends into the flow hole.

[0006] In this solution, the above-mentioned structural form is adopted. During the rotation of the shutter relative to the valve body, the protruding member cuts in the flow hole and scrapes off part of the sealing grease in the flow hole, thereby clearing the flow hole and preventing the flow hole from being blocked.

[0007] Preferably, the outer wall of the shutter is further provided with a groove, wherein the groove includes a connecting section connecting at least two adjacent flow holes, and during the rotation of the shutter, the protruding member at least partially extends into the groove.

[0008] In this solution, the above-mentioned structural form is adopted. By connecting the connecting section of at least two adjacent flow holes, the protruding piece can switch between different flow holes, avoiding contact interference between the protruding piece and the closer, making the rotation of the protruding piece relative to the closer smoother, and facilitating the cleaning of the sealing grease in the flow hole.

[0009] Preferably, the groove passes through the inner wall of the shutter.

[0010] In this solution, the above-mentioned structural form is adopted to prevent the end of the protruding member close to the closure from causing wear to the closure during the rotation of the closure relative to the valve body; in addition, since the groove passes through the wall of the closure, the protruding member can pass through the flow hole, thereby cleaning more sealing grease and further improving the anti-clogging effect.

[0011] Preferably, along the circumferential direction of the closer, the diameters of the plurality of flow holes are arranged from large to small, wherein the direction in which the diameters of the plurality of flow holes are arranged from large to small is recorded as a first direction, and along the first direction, the width of the connecting section gradually transitions from large to small.

[0012] In this solution, the above-mentioned structural form is adopted. During the rotation of the shutter, the gas outlet is aligned with the flow holes of different diameters, and the gas flows out through the flow holes of different diameters and the corresponding grooves of different widths, with a significant flow regulation effect.

[0013] Preferably, in the horizontal direction, the angle between the axial direction of the air outlet and the axial direction of the protruding member is greater than 30 degrees.

[0014] In this solution, the above-mentioned structural form is adopted to avoid contact interference between the protruding member and the air outlet, thereby improving the rationality of the spatial layout.

[0015] Preferably, the groove includes a sliding section and the connecting section that are connected to each other, and along the first direction, the sliding section is connected to the end of the connecting section, and a point at the end of the sliding section close to the end of the connecting section is recorded as the first point;

[0016] At the initial position of the shutter, in the horizontal direction, an angle between a direction of a line connecting the first point and the center of the shutter and an axial direction of the air outlet is less than 330 degrees.

[0017] In this solution, the above-mentioned structural form is adopted, and a sealing distance is reserved between the end of the groove and the position corresponding to the gas outlet in the closure, and no groove is provided, thereby enhancing the airtightness of the plug valve and avoiding gas leakage when gas is not needed.

[0018] Preferably, in the initial position of the shutter, in the horizontal direction, the angle between the direction of the line connecting the first point and the center of the shutter and the axial direction of the flow hole with the smallest diameter is greater than the angle between the axial direction of the air outlet and the axial direction of the protruding piece.

[0019] In this solution, the above-mentioned structural form is adopted. When the closer rotates to the last section, that is, when the flow hole with the smallest diameter is aligned with the air outlet, the length of the sliding section is set so that the protruding piece still slides within the sliding section, avoiding contact interference between the protruding piece and the closer, improving the rationality of the spatial layout, and preventing the protruding piece from getting stuck during the rotation process relative to the closer.

[0020] Preferably, a mounting hole is provided in the valve body, and the protruding member includes a fixed section and a slender protruding section connected to each other, the fixed section is fixed in the mounting hole, and the slender protruding section at least partially extends into the flow hole.

[0021] In this solution, by adopting the above-mentioned structural form, the slender extension section extending into the flow hole can avoid blocking the flow hole, thereby facilitating the transportation of gas.

[0022] Preferably, a sealing member is provided between the mounting hole and the fixing section.

[0023] In this solution, the above-mentioned structural form is adopted to enhance the air tightness of the plug valve and prevent gas from leaking from the gap between the protruding piece and the mounting hole.

[0024] The present invention also provides a cooker, comprising the plug valve described above.

[0025] In this solution, the above-mentioned structural form is adopted. During the rotation of the shutter relative to the valve body, the protruding member cuts in the flow hole and scrapes off part of the sealing grease in the flow hole, thereby clearing the flow hole and preventing the flow hole from being blocked.

[0026] The positive progress effect of the present invention is:

[0027] When the stopper in the plug valve of the present invention rotates relative to the valve body, the protruding member cuts in the flow hole and scrapes off part of the sealing grease in the flow hole, thereby clearing the flow hole and preventing the flow hole from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of a plug valve according to a preferred embodiment of the present invention.

[0029] Figure 2 2. It is a cross-sectional view of a plug valve according to a preferred embodiment of the present invention.

[0030] Figure 3 Schematic diagram of the cooperation between the closure and the extension member according to a preferred embodiment of the present invention.

[0031] Figure 4 A partial cross-sectional view of a plug valve according to a preferred embodiment of the present invention.

[0032] Description of reference numerals:

[0033] Valve body 1

[0034] Protruding piece 11

[0035] Fixed section 111

[0036] Slender extension section 112

[0037] Air outlet 12

[0038] closed child 2

[0039] Flow hole 21

[0040] Groove 22

[0041] Sliding section 221

[0042] Connecting section 222 DETAILED DESCRIPTION

[0043] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the following examples.

[0044] This embodiment provides a stove, which includes a stopcock. Figures 1 to 3 As shown, the plug valve includes a valve body 1 and a closure 2. The closure 2 is arranged inside the valve body 1 and can rotate around itself relative to the valve body 1. A plurality of flow holes 21 are arranged at intervals along the circumferential direction of the closure 2 on the circumferential side surface of the closure 2. A protrusion 11 is installed in the valve body 1. The protrusion 11 and the air outlet 12 of the valve body 1 are arranged at intervals along the circumferential direction of the closure 2, and the protrusion 11 at least partially extends into the flow hole 21.

[0045] In this embodiment, the protruding member 11 is not arranged at the air outlet 12 to avoid blocking the air outlet 12. The protruding member 11 is installed at other places in the valve body 1 that deviate from the air outlet 12, which can also improve the stability of the protruding member 11. In addition, since the protruding member 11 installed in the valve body 1 at least partially extends into the flow hole 21, during the rotation of the closer 2 relative to the valve body 1, the protruding member 11 cuts in the flow hole 21 and scrapes off part of the sealing grease in the flow hole 21, thereby clearing the flow hole 21 and preventing the flow hole 21 from being blocked.

[0046] like Figure 3 As shown, the outer wall of the shutter 2 is further defined by a groove 22, which includes a connecting section 222 that connects at least two adjacent flow holes 21. During rotation of the shutter 2, the extension member 11 at least partially extends into the groove 22. By connecting the connecting section 222, which connects at least two adjacent flow holes 21, the extension member 11 can switch between different flow holes 21, preventing contact interference between the extension member 11 and the shutter 2. This allows for smoother rotation of the extension member 11 relative to the shutter 2, facilitating the removal of sealing grease from the flow holes 21. Specifically, the groove 22 extends along the circumference of the shutter 2.

[0047] Preferably, if Figure 3As shown, the groove 22 passes through the inner wall of the closure 2 to prevent the end of the protruding piece 11 close to the closure 2 from causing wear to the closure 2 during the rotation of the closure 2 relative to the valve body 1; in addition, since the groove 22 passes through the wall of the closure, the protruding piece 11 can pass through the flow hole 21, thereby cleaning more sealing grease and further improving the anti-clogging effect.

[0048] Of course, in other embodiments, the groove 22 may not penetrate the inner wall of the closure 2. The bottom of the groove 22 can limit the protruding piece 11 to prevent the protruding piece 11 from extending too far into the closure 2 to ensure normal rotation of the closure 2.

[0049] like Figure 3 As shown, along the circumferential direction of the shutter 2, the diameters of the multiple flow holes 21 are arranged from large to small, wherein the direction in which the diameters of the multiple flow holes 21 are arranged from large to small is recorded as the first direction. Along the first direction, the width of the connecting section 222 gradually transitions from large to small. Multiple flow holes of different diameters are provided on the outer circumference of the shutter 2. By rotating the shutter 2 to adjust the position of the flow holes 21, the flow holes 21 of different diameters in the shutter 2 are aligned with the gas outlet 12 of the valve body 1 to control the gas flow, thereby achieving the adjustment of the flame. Please refer to the following figure for reference: Figure 2 To understand, the first direction is Figure 2 In the counterclockwise direction of the first direction, the width of the connecting section 222 gradually transitions from large to small. During the rotation of the shutter 2, the gas outlet 12 aligns with the flow holes 21 of different diameters. The gas flows out through the flow holes 21 of different diameters and the corresponding grooves 22 of different widths, achieving a significant flow regulation effect. Of course, in other embodiments, the connecting section 222 can also be set to a constant width along the first direction.

[0050] Preferably, the starting end of the communication section 222 is communicated with the flow hole 21 with a diameter just less than 2 mm, and the end of the communication section 222 is communicated with the flow hole 21 with the smallest diameter.

[0051] In this embodiment, if Figure 2 As shown, in the horizontal direction, the angle between the axis direction of the air outlet 12 and the axis direction of the protruding piece 11 is greater than 30 degrees, so as to avoid contact interference between the protruding piece 11 and the air outlet 12 and improve the rationality of the spatial layout.

[0052] In this embodiment, the groove 22 includes a sliding section 221 and a connecting section 222 that are interconnected. Along the first direction, the sliding section 221 is connected to the end of the connecting section 222. A point at the end of the sliding section 221 close to the end of the connecting section 222 is recorded as the first point. The end of the sliding section 221 refers to the end away from the flow hole 21 with the smallest diameter along the first direction, and the end of the connecting section 222 refers to the end away from the flow hole 21 with the largest diameter along the first direction. The first point is a point at the end of the sliding section 221 close to the end of the connecting section 222 along the circumferential direction of the closure 2. Specifically, please refer to Figure 3 It is understood that the connecting section 222 includes the portion between two adjacent flow holes 21, as well as the opening of the flow holes 21 connected thereto. The sliding section 221 is connected to the end of the connecting section 222, that is, the sliding section 221 is connected to the flow hole 21 with the smallest diameter. In the initial position of the stopper 2, the horizontal angle between the first point connecting the center of the stopper 2 and the axis of the gas outlet 12 is less than 330 degrees. A sealing distance is reserved between the end of the groove 22 and the position in the stopper 2 corresponding to the gas outlet 12, and no groove is provided. This enhances the airtightness of the stopcock and prevents gas leakage when gas is not in use.

[0053] In this embodiment, in the initial position of the shutter 2, the horizontal angle between the line connecting the first point and the center of the shutter 2 and the axis of the flow hole 21 with the smallest diameter is greater than the angle between the axis of the air outlet 12 and the axis of the extension 11. When the shutter 2 rotates to its final position, where the flow hole 21 with the smallest diameter is aligned with the air outlet 12, the length of the sliding section 221 is configured such that the extension 11 continues to slide within the sliding section 221, preventing contact interference between the extension 11 and the shutter 2, improving the rationality of the spatial layout, and preventing the extension 11 from becoming stuck during rotation relative to the shutter 2.

[0054] Specifically, if Figure 4 As shown, in the horizontal direction, with the axial direction of the air outlet 12 as the reference line, the angle between the axial direction of the air outlet 12 and the axial direction of the protruding member 11 is recorded as x, x>30°, the angle between the axial direction of the air outlet 12 and the direction of the line connecting the first point and the center of the closure 2 is recorded as z, z<330°, and the angle between the axial direction of the air outlet 12 and the axial direction of the flow hole 21 with the smallest diameter is recorded as y, zy>x.

[0055] like Figure 2 and Figure 3As shown, the valve body 1 is provided with a mounting hole. The extension member 11 includes a fixed section 111 and an elongated extension section 112, which are interconnected. The fixed section 111 is fixed in the mounting hole, and the elongated extension section 112 at least partially extends into the flow hole 21. The elongated extension section 112 extending into the flow hole 21 prevents blockage of the flow hole 21, facilitating gas delivery. The fixed section 111 can be directly embedded in the mounting hole, welded therein, or fixed therein via a threaded connection, facilitating installation and ensuring the stability of the extension member 11.

[0056] In this embodiment, a seal is provided between the mounting hole and the fixing section 111 to enhance the airtightness of the stopcock and prevent gas from leaking from the gap between the extension 11 and the mounting hole. Specifically, a sealing gasket or sealant is provided between the mounting hole and the fixing section 111 as a seal.

[0057] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A plug valve, characterized in that: The plug valve includes a valve body and a stopper, the stopper being disposed within the valve body and capable of rotating relative to the valve body. A plurality of flow holes spaced apart along the circumferential direction of the stopper are formed on a circumferential side surface of the stopper. A protruding member is mounted within the valve body, the protruding member and an air outlet of the valve body being spaced apart along the circumferential direction of the stopper, and the protruding member at least partially extends into the flow holes. The outer wall of the shutter is further provided with a groove, wherein the groove includes a connecting section connecting at least two adjacent flow holes. During the rotation of the shutter, the protruding member at least partially extends into the groove.

2. The plug valve according to claim 1, wherein The groove passes through the inner wall of the shutter.

3. The plug valve according to claim 1, wherein: Along the circumferential direction of the closer, the diameters of the plurality of flow holes are arranged from large to small, wherein the direction in which the diameters of the plurality of flow holes are arranged from large to small is recorded as a first direction, and along the first direction, the width of the connecting section gradually transitions from large to small.

4. The plug valve according to claim 3, wherein: In the horizontal direction, the angle between the axial direction of the air outlet and the axial direction of the protruding member is greater than 30 degrees.

5. The plug valve according to claim 4, characterized in that The groove includes a sliding section and a connecting section that are connected to each other. Along the first direction, the sliding section is connected to an end of the connecting section. A point at the end of the sliding section close to the end of the connecting section is recorded as a first point. At the initial position of the shutter, in the horizontal direction, an angle between a direction of a line connecting the first point and the center of the shutter and an axial direction of the air outlet is less than 330 degrees.

6. The plug valve according to claim 5, characterized in that In the initial position of the shutter, in the horizontal direction, the angle between the direction of the line connecting the first point and the center of the shutter and the axial direction of the flow hole with the smallest diameter is greater than the angle between the axial direction of the air outlet and the axial direction of the protruding member.

7. The plug valve according to claim 1, wherein The valve body is provided with a mounting hole. The protruding member includes a fixed section and a slender protruding section connected to each other. The fixed section is fixed in the mounting hole. The slender protruding section at least partially extends into the flow hole.

8. The plug valve according to claim 7, wherein: A sealing member is provided between the mounting hole and the fixing section.

9. A stove, characterized in that: The cooker comprises the stopcock according to any one of claims 1 to 8.

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