Anti-clogging stage valves, burners and gas cookers

Abstract

The present invention discloses an anti-blocking stage valve, a burner and a gas cooker, which include a valve body and a shutter, the shutter is rotatably arranged in the valve body, a flow regulating assembly is arranged at the gas inlet of the shutter, the gas inlet is not arranged on the outer peripheral side of the shutter, and the flow regulating assembly includes a first regulating plate and a second regulating plate that are rotatably connected, the first regulating plate is provided with a first groove along the air intake direction of the gas inlet, the second regulating plate is provided with a second groove along the air intake direction of the gas inlet, the groove edge of the first groove and the groove edge of the second groove are arranged at an angle and overlap to form an air intake channel of the flow regulating assembly. The present invention prevents sealing grease from directly flowing into the gas inlet by not arranging the gas inlet of the shutter on the outer peripheral side of the shutter, and in addition, when the flow regulating assembly rotates, the first groove overlaps with the second groove and forms an air intake channel for gas circulation, and the size of the air intake channel changes continuously, so that the sealing grease cannot keep blocking the air intake channel.

Description

Technical Field

[0001] The invention particularly relates to an anti-blocking section valve, a burner and a gas cooker. Background Art

[0002] The stage valve is a valve body that controls the firepower of the burner. The stage valve realizes stage adjustment (gas flow adjustment) by setting multiple flow holes of different sizes at intervals on the side of the closing piece in the valve body and rotating the valve stem to drive the closing piece to rotate, so that the flow holes of different sizes are connected to the gas channels of the inner ring or the outer ring accordingly.

[0003] The connection between the closure and the valve body in the sectional valve is filled with sealing grease. The sealing grease is a grease and is used to improve the air tightness of the sectional valve to prevent gas leakage from the connection between the closure and the valve body. The flow holes on the existing sectional valves are of different sizes and the smaller flow holes are set to achieve a smaller firepower of the burner. After being filled with sealing grease, the sealing grease will be blocked, resulting in gas obstruction during the sectional adjustment process and causing the burner to accidentally flame out, affecting the user experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of accidental flameout caused by blockage of flow holes by sealing grease in the prior art, and to provide an anti-blockage stage valve, burner and gas cooker.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A blockage-resistant section valve comprises a valve body and a shutter, wherein the shutter is rotatably arranged in the valve body, a flow regulating component is arranged at the gas inlet of the shutter, and the gas inlet is not arranged on the outer peripheral side of the shutter, and the flow regulating component comprises a first regulating plate and a second regulating plate which are rotatably connected, the first regulating plate is provided with a first groove along the air intake direction of the gas inlet, and the second regulating plate is provided with a second groove along the air intake direction of the gas inlet, and the groove edges of the first groove and the second groove are arranged at an angle and overlap to form an air intake channel of the flow regulating component.

[0007] In the present scheme, sealing grease is filled between the outer peripheral side of the closure and the valve body to improve the air tightness of the closure. The gas inlet of the closure is not arranged on the outer peripheral side of the closure to prevent the sealing grease from directly flowing into the gas inlet and blocking the gas inlet, thereby causing the fire hole connected to the valve body to accidentally go out. In addition, a flow regulating component is arranged at the gas inlet to regulate the gas flow entering the valve body from the closure. The flow regulating component includes a first regulating plate and a second regulating plate. The first regulating plate is provided with a first groove, and the second regulating plate is provided with a second groove. When the flow regulating component rotates, the first groove and the second groove overlap and form an air intake channel for gas circulation. When the rotation is further carried out, the size of the air intake channel formed by the first groove and the second groove changes continuously, so that the sealing grease flowing into the flow regulating component along the outer peripheral side of the closure cannot keep sealing the air intake channel during the continuous change of the first groove and the second groove, so that the air intake channel will not be blocked by the sealing grease, thereby avoiding the accidental extinction of the fire hole caused by the blocked gas flow.

[0008] Preferably, the gas inlet is located on a side of the shutter away from the valve stem of the valve body.

[0009] In this solution, the gas inlet is away from the side where the closure is connected to the valve stem, so that the gas released by the solenoid valve can flow into the closure more conveniently, thereby improving the flow efficiency of the gas to the closure. At the same time, the air tightness of the closure can be ensured by filling sealing grease between the closure and the valve body, making the structure of the closure simpler.

[0010] Preferably, the second adjusting piece is connected to the valve body and maintained in a relatively fixed state, the first adjusting piece is located in the gas inlet and rotates with the shutter, and when the shutter rotates to an ignition state, the first groove rotates to above the second groove.

[0011] In this solution, the second adjusting piece is connected to the valve body, the position of the second groove remains relatively fixed, and the first adjusting piece is connected to the shutter and rotates with the shutter, that is, when the shutter rotates to the ignition state, the first groove rotates to the top of the second groove accordingly and forms an air intake channel to allow the gas to flow smoothly into the shutter. At the same time, when the shutter rotates further, the size of the air intake channel formed by the first groove and the second groove changes continuously, which can prevent the sealing grease from closing the air intake channel when it flows into the flow regulating component.

[0012] Preferably, the first adjusting piece is coaxially arranged with the gas inlet and is provided with a protrusion, the protrusion is used to connect with the slot on the closure, and the second adjusting piece is provided with a positioning block, the positioning block is used to connect with the positioning slot on the valve body.

[0013] In the present embodiment, the first adjusting piece is a circular ring-shaped part, wherein a protrusion is protruding from the outer periphery of the circular ring-shaped part, and a corresponding groove is provided on the part of the closing piece that accommodates the first adjusting piece, and the protrusion is engaged in the groove to realize the synchronous rotation of the closing piece and the first adjusting piece. In addition, a positioning block is vertically provided on the second adjusting piece, and a positioning groove is provided on the part of the valve body that is used to accommodate the second adjusting piece, thereby realizing that the second adjusting piece remains fixed relative to the valve body. This is a preferred structural setting of the present application.

[0014] Preferably, the second groove extends outward from the middle of the second adjusting piece in a radial direction and the inner diameter gradually increases; the first groove is arranged on the first adjusting piece, and the first groove includes an inner arc line and an outer arc line, and front and rear groove edges connecting the inner arc line and the outer arc line at both ends, the outer arc line is a circular arc line with the same axis, and the inner arc line extends in a stepped shape from the head end to the tail end.

[0015] In the present embodiment, the second groove is a fan-shaped groove, and the inner diameter of the fan-shaped groove gradually increases away from the axis of the second adjusting plate. The first groove is arranged around the axis of the first adjusting plate, wherein the inner arc line of the first groove extends in a stepped manner from the head end to the tail end, that is, the first groove is formed by connecting a plurality of fan-shaped grooves of gradually decreasing sizes, and the inner arc lines of the plurality of fan-shaped grooves gradually decrease in size from the axis of the first groove, so that when the first groove rotates to above the second groove, it forms an air intake channel of different sizes with the second groove, which not only realizes the segment adjustment of the valve body, but also during the rotation process, the groove edge of the first groove and the groove edge of the second groove make a cutting motion around the axial direction of the closure, which can cut the sealing grease flowing into the flow regulating component, thereby realizing the anti-blocking function of the flow regulating component.

[0016] Preferably, a closing plate is further provided on the first adjusting piece, and when the shutter rotates to the flame-off state, the closing plate correspondingly rotates to the second groove and closes the gas inlet.

[0017] In this solution, a closing plate is further provided on the first adjusting plate. The closing plate is located on the side of the first groove and is larger than the second groove. The second groove is blocked by rotating the closer, thereby achieving the purpose of closing the gas inlet.

[0018] Preferably, an oil scraper is further provided on the second adjusting piece, and the oil scraper is protrudingly arranged and extends into the first groove.

[0019] In the present scheme, the oil scraper is a columnar member vertically arranged on the groove edge of the second groove. By extending the oil scraper into the first groove, the sealing grease flowing into the first groove during the rotation of the first groove is cut by the oil scraper, so as to achieve the anti-blocking function of the first groove and finally achieve the anti-blocking function of the gas inlet.

[0020] Preferably, the thickness of the first adjustment sheet and the second adjustment sheet ranges from 1 mm to 10 mm.

[0021] In the present solution, the thickness of the first adjusting plate and the second adjusting plate is relatively thin, specifically, a sheet with a thickness of 1mm-10mm is used, thereby avoiding the accumulation of sealing grease on the first adjusting plate and the second adjusting plate. The sealing grease cannot accumulate on the flow regulating component or accumulates less, which can prevent the sealing grease from clogging the gas inlet of the closure. This is a better structural setting of the present application.

[0022] Preferably, an elastic member is further provided in the closure, one end of which abuts against the first adjusting piece and provides a force for the first adjusting piece to approach the second adjusting piece.

[0023] In this solution, the elastic member is arranged in the closure and is used to push the first adjusting plate closer to the second adjusting plate, that is, the gap between the first adjusting plate and the second adjusting plate is smaller, thereby preventing the sealing grease from flowing between the first adjusting plate and the second adjusting plate and accumulating in the second groove of the second adjusting plate, thereby avoiding blocking the air intake passage.

[0024] Preferably, an inner ring flow hole and an outer ring flow hole are provided on the outer circumferential side of the closer, the inner ring flow hole is used to connect with the inner ring air supply channel of the valve body, and the outer ring flow hole is used to connect with the outer ring air supply channel of the valve body.

[0025] In the present scheme, the inner ring flow hole and the outer ring flow hole are used to connect the inner ring air supply channel and the outer ring air supply channel in the valve body when the closer rotates, and the inner ring flow hole or the outer ring flow hole cooperates with the flow regulating component to realize the flow of gas with different flow rates into the inner ring air supply channel or the outer ring air supply channel, thereby realizing the stage adjustment function of the closer.

[0026] Preferably, the closure is further provided with an inner ring segment hole and an outer ring segment hole, the inner ring segment hole is arranged on the closure and is connected with the inner ring flow hole, the outer ring segment hole is arranged on the closure and is connected with the outer ring flow hole.

[0027] In this scheme, the inner ring segment holes are connected to the inner ring flow holes, and the outer ring segment holes are connected to the outer ring flow holes. During the rotation of the closing member, the inner ring air supply channel is connected to the inner ring segment holes of different sizes through the inner ring segment holes to achieve segment adjustment of the inner ring combustion. Similarly, the outer ring segment holes correspond to the outer ring segment holes of different sizes when the outer ring air supply channel is connected during the rotation of the closing member to achieve segment adjustment of the outer ring combustion.

[0028] Preferably, the inner ring segment hole and the outer ring segment hole are annular grooves, the mouth size of the annular groove increases successively from the end of the annular groove, and the size of the inner ring flow hole is larger than the size of the inner ring segment hole, and the size of the outer ring flow hole is larger than the size of the outer ring segment hole.

[0029] In the present scheme, the inner diameter of the annular groove increases gradually from the starting end, so that the annular groove can realize the segment adjustment function. At the same time, due to its large size and continuous groove, the sealing grease filled on the outer peripheral side of the closure will not close the annular groove when flowing to the annular groove, but will drip from the outer peripheral side of the closure, thereby avoiding the closure of the inner ring segment hole and the outer ring segment hole of the closure, causing the gas to be blocked in the closure and unable to flow into the inner ring gas supply channel and the outer ring gas supply channel, thereby preventing the fire hole from accidentally extinguishing.

[0030] A burner comprises the anti-clogging section valve as described above.

[0031] The burner adopts the anti-clogging stage valve to prevent the gas from being blocked and the fire hole from being accidentally extinguished due to the sealing grease blocking the outer peripheral side of the shutter during use, thereby improving the use efficiency of the burner and enhancing the user experience.

[0032] A gas cooker comprises the burner mentioned above.

[0033] The gas cooker adopts the above-mentioned burner, which can ensure the airtightness of the gas cooker during use while improving the use efficiency of the gas cooker, and can also have the function of stage adjustment to meet the different cooking needs of users.

[0034] The positive and progressive effect of the present invention is that the present invention does not arrange the gas inlet of the shutter on the outer peripheral side of the shutter to prevent the sealing grease from directly flowing into the gas inlet and blocking the gas inlet, thereby causing the fire hole connected to the valve body to be accidentally extinguished. In addition, a flow regulating component is arranged at the gas inlet to achieve gas flow regulation of the shutter. The flow regulating component includes a first regulating plate and a second regulating plate. The first regulating plate is provided with a first groove, and the second regulating plate is provided with a second groove. When the flow regulating component rotates, the first groove overlaps with the second groove to form an intake channel for gas circulation. The first groove provides an intake channel that is not mutually exclusive. The first groove and the second groove are located on planes at different heights and the sealing grease cannot be accumulated on the two adjacent sides of the air intake channel. When the shutter rotates, the size of the air intake channel formed by the first groove and the second groove changes continuously, so that the sealing grease flowing into the flow regulating component along the outer peripheral side of the shutter cannot keep blocking the air intake channel during the continuous change of the first groove and the second groove, so that the air intake channel will not be blocked by the sealing grease, thereby avoiding accidental flameout of the fire hole caused by the obstruction of the gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional diagram of a segment valve according to a preferred embodiment of the present invention.

[0036] Figure 2 A bottom view of a sectional valve according to a preferred embodiment of the present invention.

[0037] Figure 3 for Figure 2 AA section view.

[0038] Figure 4 This is a diagram showing the connection relationship between the valve stem and the closure member according to a preferred embodiment of the present invention.

[0039] Figure 5 It is a schematic diagram of the inner ring segment holes and the outer ring segment holes according to a preferred embodiment of the present invention.

[0040] Figure 6 This is a diagram showing the connection relationship between the first adjusting piece and the closure member in a preferred embodiment of the present invention.

[0041] Figure 7 This is a diagram showing the positional relationship between the first adjusting piece and the second adjusting piece according to a preferred embodiment of the present invention.

[0042] Figure 8 A cross-sectional view of a closure according to a preferred embodiment of the present invention.

[0043] Fig. 9 The figure is a schematic structural diagram of a first adjusting piece according to a preferred embodiment of the present invention.

[0044] Fig.10 The figure is a schematic structural diagram of a second adjusting piece according to a preferred embodiment of the present invention.

[0045] Fig.11 The figure is a schematic structural diagram of an oil scraper according to a preferred embodiment of the present invention.

[0046] Description of reference numerals:

[0047] Valve body 1

[0048] Stem 100

[0049] closed child 2

[0050] Gas import 21

[0051] Groove 22

[0052] Card slot 23

[0053] Flow regulation component 3

[0054] Intake channel 30

[0055] First adjustment piece 31

[0056] First slot 311

[0057] Inner arc 3111

[0058] Outer arc 3112

[0059] Bump 312

[0060] Closing plate 313

[0061] Second adjustment piece 32

[0062] Second slot 321

[0063] Positioning block 322

[0064] Oil scraper 4

[0065] Elastic part 5

[0066] Inner ring flow hole 6

[0067] Outer ring flow hole 7

[0068] Inner ring segment hole 8

[0069] Outer ring segment hole 9 DETAILED DESCRIPTION

[0070] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0071] A shutter is rotatably connected to the valve body of the stage valve. The outer peripheral side of the shutter is conical and the valve body is correspondingly provided with an inclined wall surface for facilitating the installation of the shutter. The wall surface and the shutter are filled with sealing grease to ensure the airtightness between the shutter and the wall surface of the valve body, thereby preventing gas from leaking from between the shutter and the wall surface of the valve body. The sealing grease is usually grease, but the use of sealing grease to improve the airtightness will cause the multiple circular holes with gradually increasing sizes set on the outer peripheral side of the shutter for realizing the gas flow regulation of the shutter to be blocked by the sealing grease, especially the smaller circular holes. The blocked circular holes cannot further supply gas to the valve body, thereby causing the fire hole connected to the stage valve to accidentally extinguish.

[0072] This embodiment provides an anti-blocking stage valve, the specific structure of which is as follows: Figure 1 , Figure 2 and Figure 3 As shown, it includes a valve body 1 and a shutter 2, the shutter 2 is rotatably arranged in the valve body 1, the shutter 2 is provided with a gas inlet 21 and the gas inlet 21 is not arranged on the outer peripheral side of the shutter 2, the outer peripheral side of the shutter 2 is tapered and the gas inlet 21 is in the shape of a circular hole, the gas inlet 21 coincides with the axis of the shutter 2 and provides gas to flow into the shutter 2, and the gas inlet 21 of the shutter 2 is not arranged on the outer peripheral side of the shutter to avoid the sealing grease from directly flowing into the gas inlet 21 along the wall between the shutter 2 and the valve body 1, thereby avoiding the sealing grease from blocking the gas inlet 21 with its own tension, and preventing the fire hole connected to the valve body from accidentally extinguishing due to the blocking of the gas inlet 21, thereby ensuring the air tightness of the stage valve and improving the ignition success rate and the user experience.

[0073] In addition, in the present embodiment, a groove 22 is provided at one end of the closure 2 close to the valve stem 100, and a connecting piece is provided on the circumferential side of the valve stem 100. The connecting piece extends into the groove 22 and drives the closure 2 to rotate synchronously when the valve stem 100 rotates. The gas flows into the closure 2 through the gas inlet 21. A flow regulating component 3 is also provided at the gas inlet 21. The gas flow level of the level valve is adjusted by the flow regulating component 3. The specific structure is as follows: Figure 4 , Figure 6 and Figure 7As shown, it includes a first regulating piece 31 and a second regulating piece 32. The first regulating piece 31 is arranged above the second regulating piece 32 and is rotatably connected to the second regulating piece 32. The first regulating piece 31 is provided with a first groove 311, and the second regulating piece 32 is provided with a second groove 321. The first groove 311 and the second groove 321 are both arranged along the intake direction of the gas inlet 21, so that the gas can smoothly flow into the closure 2 after passing through the second groove 321 and the first groove 311. In addition, the first regulating piece 31 can rotate with the closure 2 when the closure 2 rotates. When the first groove 311 rotates to the top of the second groove 321, the two side edges of the first groove 311 and the two side edges of the second groove 321 are jointly enclosed to form an intake channel 30. The size of the intake channel 30 changes continuously with the size of the overlapping portion of the first groove 311 and the second groove 321. When part of the sealing grease is moved along the closure When the outer peripheral side of the closure 2 flows into the flow regulating component 3, since the first groove 311 and the second groove 321 are located on planes at different heights and the first groove 311 continuously rotates with the closure 2, the sealing grease can only act on the adjacent two side edges through its own tension and cannot achieve sealing on the oppositely arranged side edges. In addition, the side edges of different heights increase the area blocked by the sealing grease, and the tension requirement is higher, that is, it is more difficult to block the air inlet channel 30. Furthermore, the air inlet channel 30 with constantly changing size will also destroy the blocked sealing grease. The sealing grease cannot maintain the sealing of the air inlet channel 30 during the continuous change of the first groove 311 and the second groove 321, thereby penetrating the air inlet channel 30 and preventing the gas flow from being blocked by the sealing grease, thereby avoiding accidental flameout of the fire hole caused by the obstruction of gas flow and improving the user experience.

[0074] like Figure 4 , Figure 6 As shown, in this embodiment, the gas inlet 21 is located on the side of the shutter 2 away from the valve stem 100 of the valve body 1 .

[0075] Specifically, the valve stem 100 is located above the closure 2 and one end of the valve stem 100 is abutted against the upper end of the closure 2, the gas inlet 21 is located at the lower end of the closure 2 and close to the solenoid valve arrangement of the valve body 1, a valve needle is passed through the closure 2, the valve needle and the valve stem 100 are coaxially arranged and the valve needle is pushed to move in the downward direction during the downward pressure of the valve stem, and the solenoid valve is pushed open by the valve needle to realize the opening of the solenoid valve and release of gas, by arranging the gas inlet 21 close to the solenoid valve, the released gas can flow quickly into the closure 2 without changing the internal structure of the valve body 1, or additionally arranging a gas path to the upper end of the closure 2 to introduce the gas, thereby avoiding the increase in manufacturing cost caused by changing the valve body 1, and in the case of filling the outer peripheral side of the existing closure 2 with sealing grease, it is still possible to ensure that the segment adjustment function and anti-blocking function of the valve body 1 are realized by changing the position of the gas inlet 21 and arranging a flow regulating component 3 at the gas inlet 21.

[0076] In this embodiment, the first adjusting piece 31 is coaxially arranged with the gas inlet 21 and is provided with a protrusion 312. The protrusion 312 is used to connect with the slot 23 on the closure 2, and realize the synchronous rotation of the first adjusting piece 31 following the closure 2. A positioning block 322 is provided on the second adjusting piece 32. The positioning block 322 is used to connect with the positioning slot (not shown in the figure) on the valve body 1, and realize that the second adjusting piece 32 and the valve body 1 remain in a relatively fixed state.

[0077] Specifically, the first adjusting piece 31 and the second adjusting piece 32 are annular members, the annular members are provided with a through hole and the valve needle is inserted into the through hole, and there is a gap between the through hole and the valve needle, thereby preventing the valve needle from driving the first adjusting piece 31 and the second adjusting piece 32 to move in the downward pressure direction during the process of pushing open the solenoid valve; wherein a protrusion 312 is protrudingly provided on the outer periphery of the first adjusting piece 31, and the end of the protrusion 312 is a rectangular member, and a slot 23 is provided on the gas inlet 21 of the closure 2, and the shape of the slot is adapted to the protrusion 312, and the protrusion 312 is snapped into the slot 23 to realize the synchronous rotation of the closure 2 and the first adjusting piece 31, and in addition, the second adjusting piece 32 is vertically provided with a protrusion 312 on the outer periphery of the first adjusting piece 31. A positioning block 322 is provided, and a positioning groove is provided on the part of the valve body 1 for accommodating the second adjusting piece 32. The positioning hole 322 is snapped into the positioning groove, so that the second adjusting piece 32 is kept fixed relative to the valve body 1. The gas enters the air intake passage 30 through the solenoid valve and finally flows into the closure from the gas inlet 21. The gas intake amount is determined by the size of the air intake passage 30. When the first groove 311 rotates to the top of the second groove 321 following the closure 2, the second groove 321 remains in a relatively fixed state during the rotation. It only needs to drive the first groove 311 to rotate to realize the continuous change of the size of the air intake passage 30, and the sealing grease cannot block the air intake passage 30.

[0078] Of course, in other implementations of this embodiment, the second adjusting plate 32 can also be set to be rotatable, and the overlap between the second groove 321 and the first groove 311 is increased, thereby increasing the size change of the air intake channel 30 and increasing the corresponding gear of the gas stage adjustment. The second adjusting plate 32 can be driven by other driving structures accordingly. This is the prior art and will not be elaborated on here.

[0079] In this embodiment, a closing plate 313 is further provided on the first adjusting piece 31. The closing plate 313 is a flat plate and is located on the side of the first groove 311. The size of the closing plate 313 is larger than the second groove 321. By rotating the closer 2 and driving the first adjusting piece 31 to rotate, the closing plate 313 rotates accordingly to the top of the second groove 321 to block the second groove 321, thereby achieving the purpose of closing the gas inlet 21.

[0080] In this embodiment, the second groove 321 extends outward from the middle of the second adjustment piece 32 in the radial direction and the inner diameter gradually increases; the first groove 311 is arranged in a ring on the first adjustment piece 31, and the first groove 311 includes an inner arc line 3111 and an outer arc line 3112, and front and rear groove edges connecting the inner arc line 3111 and the outer arc line 3112 at both ends, the outer arc line 3112 is a circular arc line with the same axis, and the inner arc line 3111 extends in a stepped shape from the head end to the tail end.

[0081] Specifically, Fig. 9 , Fig.10 As shown, the second groove 321 is a fan-shaped groove, which is arranged around the through hole of the second groove 321 and the groove edge of the fan-shaped groove extends outwardly along the radial direction of the second adjusting plate 32, and the inner diameter of the fan-shaped groove gradually increases away from the through hole, so that the sealing area gradually increases when the sealing grease flows into the fan-shaped groove, the difficulty of sealing increases, and it is ensured that the air intake channel 30 formed when the second groove 321 overlaps with the first groove 311 is not easily blocked;

[0082] The first groove 311 is arranged around the through hole of the first adjusting plate 31, and the first groove has an inner arc line 3111 and an outer arc line 3112. The extension direction of the inner arc line 3111 and the outer arc line 3112 is different from the extension direction of the groove edge of the second groove 321. A plurality of rectangular folded edges are arranged on the inner arc line 3111, and each rectangular folded edge has a different distance from the outer arc line 3112, and each rectangular folded edge is connected in sequence to form the inner arc line 3111. From the head end of the first groove 311 to the tail end, the distance between the rectangular folded edge and the outer arc line 3112 decreases successively, so that when the first groove 311 overlaps with the second groove 321 during the rotation process, the size of the air intake channel 30 formed by the overlap of the inner arc line 3111 and the second groove 321 changes further with the rotation, which not only meets the diversified needs of the stage adjustment of the gas, but also the air intake channel 30 with the constantly changing size can make it more difficult to block the sealing grease, and the air intake channel 30 always remains unobstructed.

[0083] Furthermore, during the rotation of the first groove 311, the groove edge of the first groove 311 fits with the groove edge of the second groove 321 and performs a cutting movement around the axial direction of the closure 2. That is to say, when the groove edge of the first groove 311 contacts the groove edge of the second groove 321, an angle will appear due to the different setting directions. The position of the angle changes continuously with the rotation of the first groove 311, and the sealing grease attached to the first groove 311 and the second groove 321 is cut and scraped off accordingly, thereby realizing the anti-blocking function of the flow regulating component 3.

[0084] In other implementations of this embodiment, the inner arc line 3111 can also start from the tail end of the first groove 311 to the head end, and can also achieve that when the first groove 311 overlaps with the second groove 321 during rotation, the size of the air intake channel 30 formed by the overlapping of the rotating inner arc line 3111 and the second groove 321 can further change, or other shapes of the inner arc line 3111 can be used to meet the stage adjustment function of the flow regulating component 3. This is the prior art and will not be elaborated here.

[0085] like Fig.11 As shown, in the present embodiment, an oil scraper 4 is further provided on the second adjusting piece 32. The oil scraper 4 is a columnar member vertically arranged on the groove edge of the second groove 321. The oil scraper 4 is fixedly connected to the groove edge of the second groove 321 and maintains a relatively fixed state. One end of the oil scraper 4 extends into the first groove 311. During the rotation of the first groove 311, the sealing grease flowing into the first groove 311 is scraped off in sequence along the rotation direction by the oil scraper 4, so that the sealing grease flowing into the first groove 311 is cut by the oil scraper 4 to achieve anti-blocking of the first groove 311. The anti-blocking function of the air intake passage 30 is finally achieved by cooperating with the anti-blocking method of gradually increasing the inner diameter of the groove edge of the second groove 321.

[0086] In this embodiment, the thickness of the first regulating sheet 31 and the second regulating sheet 32 ​​ranges from 1 mm to 10 mm. The first regulating sheet 31 and the second regulating sheet 32 ​​are relatively thin, specifically, sheets with a thickness of 1 mm to 10 mm. Compared with a solution with a thickness greater than 10 mm, this thickness not only saves the material of the flow regulating component 3, but also reduces the accumulation of sealing grease on the first regulating sheet 31 and the second regulating sheet 32. The sealing grease cannot accumulate on the flow regulating component 3 or accumulates less, which can prevent the sealing grease from blocking the gas inlet 21 of the closure 2.

[0087] like Figure 8 As shown, in this embodiment, an elastic member 5 is further provided in the closure 2 , one end of the elastic member 5 abuts against the first adjustment piece 31 and provides a force for the first adjustment piece 31 to approach the second adjustment piece 32 .

[0088] Specifically, the elastic member 5 is a spring, which is arranged in the closure 2 and sleeved on the outer peripheral side of the valve needle. The elastic member 5 is used to push the first adjusting piece 31 closer to the second adjusting piece 32. That is to say, the push of the elastic member 5 makes the gap between the first adjusting piece 31 and the second adjusting piece 32 along the valve needle direction smaller, thereby preventing the sealing grease from flowing between the first adjusting piece 31 and the second adjusting piece 32 and accumulating in the second groove 321 of the second adjusting piece 32, thereby avoiding blocking the intake passage 30.

[0089] like Figure 5As shown, in this embodiment, an inner ring flow hole 6 and an outer ring flow hole 7 are provided on the outer peripheral side of the closer 2. The inner ring flow hole 6 is used to connect with the inner ring air supply channel of the valve body 1, and the outer ring flow hole 7 is used to connect with the outer ring air supply channel of the valve body 1.

[0090] Specifically, the valve body 1 is provided with an inner ring gas supply channel and an outer ring gas supply channel. The outer ring gas supply channel is connected to the outer ring fire hole of the burner, and the inner ring gas supply channel is connected to the inner ring fire hole of the burner. When the inner ring flow hole 6 is connected to the inner ring gas supply channel during the rotation of the closure 2, the gas flows to the inner ring gas supply channel and supplies the inner ring fire hole through the closure. Similarly, the outer ring flow hole 7 has the same principle as the inner ring flow hole 6. This is the prior art and will not be elaborated on here. In order to ensure that the inner ring fire hole or the outer ring fire hole is opened accordingly with different rotation angles during the rotation of the closure 2, the outer ring flow hole 7 and the inner ring flow hole 6 are staggered on the outer peripheral side of the closure 2; the inner ring flow hole 6 or the outer ring flow hole 7 cooperates with the flow regulating component 3 to realize that the gas with different flow rates flows into the inner ring gas supply channel or the outer ring gas supply channel, thereby realizing the stage adjustment function of the closure 2.

[0091] Furthermore, if Figure 5 , Figure 8 As shown, the closing member 2 is also provided with an inner ring segment hole 8 and an outer ring segment hole 9, the inner ring segment hole 8 is arranged on the closing member 2 and is connected to the inner ring flow hole 6, and the outer ring segment hole 9 is arranged on the closing member 2 and is connected to the outer ring flow hole 7. The size of the inner ring flow hole 6 is larger than the size of the inner ring segment hole 8, and the size of the outer ring flow hole 7 is larger than the size of the outer ring segment hole 9, that is, when the closing member 2 rotates and the inner ring flow hole 6 is connected to the inner ring gas supply channel, the inner ring fire hole is in a combustion state with the maximum gas flow, and similarly, when the closing member 2 rotates and the outer ring flow hole 7 is connected to the outer ring gas supply channel, the outer ring fire hole is in a combustion state with the maximum gas flow, so as to realize the segment adjustment of the inner ring combustion and the outer ring combustion.

[0092] In addition, the inner ring segment hole 8 and the outer ring segment hole 9 are annular grooves, and the mouth size of the annular groove increases successively from the end of the annular groove, that is, the end size of the annular groove is the minimum size relative to the size of the inner ring flow hole 6 or the outer ring flow hole 7, and the inner diameter of the annular groove increases successively from the starting end, so that the annular groove can realize the segment adjustment function. At the same time, due to its own large size and continuous groove mouth, the sealing grease filled on the outer peripheral side of the closure 2 will not close the annular groove when flowing to the annular groove, but will drip from the outer peripheral side of the closure 2, thereby avoiding the closure of the inner ring segment hole 8 and the outer ring segment hole 9 of the closure 2, which causes the gas to be blocked in the closure 2 and cannot flow into the inner ring gas supply channel and the outer ring gas supply channel, thereby preventing the fire hole from accidentally extinguishing.

[0093] This embodiment also provides a burner, comprising the above-mentioned anti-clogging stage valve.

[0094] The burner adopts the anti-clogging stage valve to prevent the gas from being blocked and the fire hole from being accidentally extinguished due to the sealing grease blocking the outer peripheral side of the shutter 2 during use, thereby improving the use efficiency of the burner and enhancing the user experience.

[0095] This embodiment also provides a gas cooker, comprising the above-mentioned burner.

[0096] The gas cooker adopts the above-mentioned burner, which can ensure the airtightness of the gas cooker during use while improving the use efficiency of the gas cooker, and can also have the function of stage adjustment to meet the different cooking needs of users.

[0097] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection 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, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An anti-blocking section valve, comprising a valve body and a stopper, wherein the stopper is rotatably arranged in the valve body, and a flow regulating component is arranged at the gas inlet of the stopper. It is characterized in that The gas inlet is not arranged on the outer peripheral side of the closure, and the flow regulating assembly includes a first regulating piece and a second regulating piece that are rotatably connected, the first regulating piece is provided with a first groove along the air intake direction of the gas inlet, and the second regulating piece is provided with a second groove along the air intake direction of the gas inlet, the groove edge of the first groove and the groove edge of the second groove are arranged at an angle and overlap to form an air intake channel of the flow regulating assembly, and the second groove extends outward from the middle of the second regulating piece in a radial direction and the inner diameter gradually increases; the first groove is arranged on the first regulating piece, the first groove includes an inner arc line and an outer arc line, and front and rear groove edges connecting the inner arc line and the outer arc line at both ends, the outer arc line is a circular arc line with the same axis, and the inner arc line extends in a stepped shape from the head end to the tail end, and the second regulating piece is also provided with an oil scraper, and the oil scraper is protrudingly arranged and extends into the first groove.

2. The anti-clogging section valve according to claim 1, It is characterized in that The gas inlet is located at a side of the shutter away from the valve stem of the valve body.

3. The anti-clogging section valve according to claim 1, It is characterized in that The second adjusting piece is connected to the valve body and keeps a relatively fixed state. The first adjusting piece is located in the gas inlet and rotates with the shutter. When the shutter rotates to the ignition state, the first groove rotates to above the second groove.

4. The anti-clogging section valve according to claim 3, It is characterized in that The first adjusting piece is coaxially arranged with the gas inlet and is provided with a protrusion, which is used to connect with the slot on the closure. The second adjusting piece is provided with a positioning block, which is used to connect with the positioning slot on the valve body.

5. The anti-clogging section valve according to claim 1, It is characterized in that A closing plate is also provided on the first adjusting piece. When the shutter rotates to the flame-off state, the closing plate correspondingly rotates to the second groove and closes the gas inlet.

6. The anti-clogging section valve according to claim 1, It is characterized in that The thickness of the first adjustment sheet and the second adjustment sheet ranges from 1 mm to 10 mm.

7. The anti-clogging section valve according to claim 1, It is characterized in that An elastic member is also provided in the closure, one end of which abuts against the first adjusting piece and provides a force for the first adjusting piece to approach the second adjusting piece.

8. The anti-clogging section valve according to claim 1, It is characterized in that An inner ring flow hole and an outer ring flow hole are arranged on the outer circumference of the closer. The inner ring flow hole is used to connect with the inner ring air supply channel of the valve body, and the outer ring flow hole is used to connect with the outer ring air supply channel of the valve body.

9. The anti-clogging section valve according to claim 8, It is characterized in that The closure is also provided with an inner ring segment hole and an outer ring segment hole, the inner ring segment hole is arranged on the closure and is connected with the inner ring flow hole, the outer ring segment hole is arranged on the closure and is connected with the outer ring flow hole.

10. The anti-clogging section valve according to claim 9, It is characterized in that The inner ring segment position hole and the outer ring segment position hole are annular grooves, the mouth size of the annular groove increases successively from the end of the annular groove, and the size of the inner ring flow hole is larger than the size of the inner ring segment position hole, and the size of the outer ring flow hole is larger than the size of the outer ring segment position hole.

11. A burner, It is characterized in that It comprises the anti-clogging section valve as described in any one of claims 1 to 10 above.

12. A gas cooker, It is characterized in that A burner comprising the burner as claimed in claim 11.

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