Section valve and burner comprising same

Abstract

The utility model provides a segment position valve and a burner including the same, the segment position valve comprises a valve body and a closure arranged in the valve body, an inner ring channel and an outer ring channel which are different in height are arranged in the valve body, a first channel and a second channel are arranged on the valve body, the first channel is correspondingly arranged on the horizontal plane where the inner ring channel is located, and the second channel is correspondingly arranged on the horizontal plane where the outer ring channel is located. The second channel is correspondingly arranged on the horizontal plane where the outer ring channel is located, the first channel is communicated to the side portion of the inner ring channel, and the second channel is communicated to the side portion of the outer ring channel; a plurality of inner ring air inlet holes are formed in the positions, corresponding to the inner ring channels, of the closure, and the first channels are used for being communicated with the inner ring air inlet holes in the closure when the angles of 90 degrees and 120 degrees are formed in the closure; a plurality of outer ring air inlet holes corresponding to the outer ring channel are formed in the closure, and the second channel is used for being communicated with the outer ring air inlet holes in the closure at 90 degrees.

Description

Technical Field

[0001] The utility model relates to the technical field of sectional valves, in particular to a sectional valve and a burner comprising the sectional valve. Background Art

[0002] The section valve in the burner is used to adjust the fire power of the fire holes on the inner and outer rings of the burner. It is widely used because of its high accuracy in regulating the gas flow.

[0003] The segment valve is provided with a stopper, and the stopper is provided with a double-layer structure, so as to realize a combination of pores of various apertures through the double-layer structure, thereby accurately adjusting the firepower of the burner. However, the size of the gas supply channel for supplying gas at the axis of the stopper of the double-layer structure is smaller than that of the gas supply channel of the stopper of the single-layer structure, which increases the pressure drop of the gas from the stopper into the inner ring channel and the outer ring channel, and reduces the gas flow rate. The existing method for solving the large pressure drop is usually to set an additional adjustment channel to supplement the gas flow rate, for example, to set an adjustment channel on the side of the inner and outer ring channels, and the adjustment channel and the inner and outer ring channels are located at the same horizontal plane, or to set an adjustment channel at a different height position on the valve body, and set the adjustment channel to communicate with the inner and outer ring channels. However, setting an adjustment channel at a different height position on the valve body will require the valve body to be set to a higher height, that is, to produce a new model of valve body, which makes the versatility of the segment valve worse and cannot be directly replaced on other burners. When the regulating channel is set on the same horizontal plane, it may happen that the burner obtains gas in advance when the inner and outer ring channels are not connected but the regulating channel is connected, that is, premature ventilation; or the inner and outer ring channels are closed after ventilation but the regulating channel still keeps supplying gas to the inner and outer ring channels, that is, delayed gas shut-off. The above situations may cause safety problems and affect the user experience. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art that the versatility of the stage valve deteriorates and the user experience deteriorates when the stage valve reduces the pressure drop period, and to provide a stage valve and a burner comprising the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A sectional valve, the sectional valve comprising a valve body and a stopper arranged in the valve body, the valve body being provided with an inner ring channel and an outer ring channel of different heights, the valve body being provided with a first channel and a second channel, the first channel being provided correspondingly at a horizontal plane where the inner ring channel is located, the second channel being provided correspondingly at a horizontal plane where the outer ring channel is located, the first channel being connected to a side portion of the inner ring channel, and the second channel being connected to a side portion of the outer ring channel;

[0007] A plurality of inner ring air inlet holes are arranged on the closing member corresponding to the inner ring channel, and the first channel is used to communicate with the inner ring air inlet holes at 90° and 120° on the closing member;

[0008] A plurality of outer ring air inlet holes are arranged on the closure corresponding to the outer ring channel, and the second channel is used to communicate with the outer ring air inlet holes on the closure at 90°.

[0009] In this solution, the first channel and the second channel are additionally provided to supplement the gas to the inner ring channel and the outer ring channel, thereby reducing the pressure drop of the closure. The first channel and the second channel are provided corresponding to the plane where the inner ring channel and the outer ring channel are located, so that the height of the valve body and the closure does not need to be increased, thereby ensuring the versatility of the segment valve and enabling it to be replaced on different burners. By limiting the connection angle between the first channel and the second channel and the inner ring air inlet hole and the outer ring air inlet hole on the closure, so that when the inner ring channel and the outer ring channel are just connected, the first channel and the second channel are not connected, thus solving the problem of premature ventilation. In addition, the above-mentioned angle range is the case where the gas volume of the inner ring channel and the outer ring channel is the largest. At this time, when the closure is turned to turn off the fire, the gas volume gradually decreases until the first channel and the second channel are closed, so there will be no problem of delayed gas shut-off, thereby improving the user experience.

[0010] Preferably, the inner ring air inlet hole is an elliptical hole at 90° and 120° from the closure, and the inner ring air inlet hole extends to the plane where the first channel is located at 90° and 120° from the closure;

[0011] The outer ring air inlet hole is an elliptical hole at 90° above the closure, and extends to the plane where the second channel is located at 90° above the closure.

[0012] In this solution, through the above arrangement, the first channel and the second channel are connected within a specific angle range. The elliptical hole can reduce the structural improvement on the closure and reduce the difficulty of connecting the first channel and the second channel.

[0013] Preferably, the inner ring air inlet hole is a circular hole when it is 0°-90° above the closing part, and when it is 0°-90° above the closing part, the inner ring air inlet hole is higher than the first channel in the height direction;

[0014] The outer ring air inlet hole is a circular hole when it is 0°-90° on the closure, and is lower than the second channel along the height direction when it is 0°-90° on the closure.

[0015] In this solution, the above arrangement is used to close the first channel and the second channel within a specific angle range, thereby preventing the inner ring channel and the outer ring channel from being ventilated in advance. In addition, when the inner ring air inlet is a round hole, it is arranged to be higher than the first channel, and when the outer ring air inlet is a round hole, it is arranged to be lower than the second channel, so that when the inner ring air inlet is a round hole and the outer ring air inlet is a round hole, they are close to each other along the height direction of the closure, so as to reduce the space occupied in the height direction of the closure, so that the closure does not need to be extended in height, and the original height can be maintained, thereby improving the versatility of the closure and the segment valve.

[0016] Preferably, a flow regulating component is disposed in the first channel and the second channel, and one end of the flow regulating component extends into the first channel and the second channel respectively and reciprocates along the extending direction.

[0017] In the present solution, by providing a flow regulating component, the accuracy of the amount of supplementary gas when supplementing gas into the inner ring channel and the outer ring channel through the first channel and the second channel and reducing the pressure drop is further improved, so that the burner will not have abnormal firepower, and the first channel and the second channel can be closed in time when there is no need to supplement gas into the inner ring channel and the outer ring channel.

[0018] Preferably, when a flow regulating component is provided in the first channel, the first channel is communicated with each of the inner ring air inlet holes; when a flow regulating component is provided in the second channel, the second channel is communicated with each of the outer ring air inlet holes.

[0019] In this solution, through the above-mentioned settings, the problem of early ventilation is solved through the flow regulating component, ensuring that the burner can reduce the pressure drop and have sufficient gas volume when the fire power is low.

[0020] Preferably, when the first channel is connected to each of the inner ring air inlet holes, the first channel is located between the 0° position of the closure and the inner ring channel.

[0021] In this solution, through the above arrangement, the space occupied by the first channel in the horizontal direction of the valve body can be further reduced, the internal space of the valve body can be reasonably utilized, and the versatility of the sectional valve can be ensured.

[0022] Preferably, the flow regulating component is an adjusting pin, threaded holes are provided on the first channel and the second channel, and the adjusting pin is screwed to the threaded holes.

[0023] In this solution, the above-mentioned settings are used to achieve precise regulation of the supplementary gas in the inner ring channel and the outer ring channel.

[0024] Preferably, the adjusting pin is arranged in a vertical direction, and one end of the adjusting pin away from the first channel and the second channel is located at the top of the valve body.

[0025] In this solution, the adjusting pin is arranged on the top of the valve body so that the user can easily screw the adjusting pin, thereby reducing the difficulty of operation and improving the user experience.

[0026] Preferably, a groove is provided on the outer circumference of the adjusting pin, the groove is provided on the outer circumference of the adjusting pin and the groove is provided close to the top of the valve body, and a sealing member is provided in the groove.

[0027] In this solution, a seal is provided to seal the outer peripheral side of the adjusting pin, thereby preventing gas from leaking from the adjusting pin when replenishing gas, thereby ensuring the safety of the stage valve.

[0028] A burner comprises the above-mentioned section valve.

[0029] In this solution, the burner includes the above-mentioned section valve. The section valve is configured with a first channel and a second channel on the valve body, and connects the inner ring air inlet hole and the outer ring air inlet hole with the first channel and the second channel at a specific angle on the closure, so that the section valve can ensure the gas flow when the burner needs sufficient gas, reduce the closure pressure drop, and improve the user experience.

[0030] The positive and progressive effect of the utility model is that the utility model reduces the pressure drop of the closure by additionally setting the first channel and the second channel to supplement the gas to the inner ring channel and the outer ring channel. The first channel and the second channel are set corresponding to the plane where the inner ring channel and the outer ring channel are located, so that the height of the valve body and the closure does not need to be increased, ensuring the versatility of the segment valve and enabling it to be replaced on different burners. By limiting the connection angle between the first channel and the second channel and the inner ring air inlet hole and the outer ring air inlet hole on the closure, so that when the inner ring channel and the outer ring channel are just connected, the first channel and the second channel are not connected, solving the problem of premature ventilation. And the above-mentioned angle range is the case where the gas volume of the inner ring channel and the outer ring channel is the largest. At this time, when the closure is turned to turn off the fire, the gas volume gradually decreases until the first channel and the second channel are closed, so there will be no problem of delayed gas shut-off, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional diagram of a segment valve according to a preferred embodiment of the utility model.

[0032] Figure 2 This is a schematic structural diagram of a valve body according to a preferred embodiment of the utility model.

[0033] Figure 3 This is a positional relationship diagram of the second channel and the outer ring channel of a preferred embodiment of the utility model.

[0034] Figure 4This is a positional relationship diagram of the first channel and the inner ring channel of a preferred embodiment of the utility model.

[0035] Figure 5 This is a structural schematic diagram of a preferred embodiment of the utility model in which the first channel and the inner ring channel are not connected.

[0036] Figure 6 This is a structural schematic diagram of the communication state between the first channel and the inner ring channel in a preferred embodiment of the utility model.

[0037] Figure 7 This is a schematic structural diagram of a preferred embodiment of the utility model when the inner ring channel is not ventilated in advance.

[0038] Figure 8 This is a structural schematic diagram of a preferred embodiment of the utility model in which the second channel is not connected to the outer ring channel.

[0039] Fig. 9 This is a structural schematic diagram of the communication state between the second channel and the outer ring channel in a preferred embodiment of the utility model.

[0040] Fig.10 This is a schematic structural diagram of a preferred embodiment of the utility model in which the outer ring channel is in a non-delayed air-closing state.

[0041] Fig.11 This is a structural schematic diagram of a preferred embodiment of the utility model in which the second channel is connected to the elliptical hole.

[0042] Fig.12 This is a schematic structural diagram of an adjusting pin disposed in the second channel of a preferred embodiment of the utility model.

[0043] Fig.13 This is a structural schematic diagram of an adjusting pin arranged in the first channel of a preferred embodiment of the utility model.

[0044] Fig.14 This is a structural schematic diagram (I) of a preferred embodiment of the utility model in which the first channel is connected to each inner ring air inlet hole.

[0045] Fig.15 This is a structural schematic diagram (II) of a preferred embodiment of the utility model in which the first channel is connected to each inner ring air inlet hole.

[0046] Description of reference numerals:

[0047] Valve body 1

[0048] Inner Ring Channel 11

[0049] Outer Ring Channel 12

[0050] closed child 2

[0051] Inner ring air inlet 21

[0052] Outer ring air inlet 22

[0053] First channel 3

[0054] Second channel 4

[0055] Flow regulation component 5

[0056] Seal 6 DETAILED DESCRIPTION

[0057] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0058] This embodiment provides a stage valve, the specific structure is as follows Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the sectional valve comprises a valve body 1 and a closing member 2 arranged in the valve body 1, an inner ring channel 11 and an outer ring channel 12 of different heights are arranged in the valve body 1, a first channel 3 and a second channel 4 are arranged on the valve body 1, the first channel 3 is arranged correspondingly at the horizontal plane where the inner ring channel 11 is located, the second channel 4 is arranged correspondingly at the horizontal plane where the outer ring channel 12 is located, the first channel 3 is connected to the side of the inner ring channel 11, and the second channel 4 is connected to the side of the outer ring channel 12;

[0059] A plurality of inner ring air inlet holes 21 are provided on the closing member 2 corresponding to the inner ring channel 11, and the first channel 3 is used to communicate with the inner ring air inlet holes 21 at 90° and 120° on the closing member 2;

[0060] A plurality of outer ring air inlet holes 22 are provided on the closing member 2 corresponding to the outer ring channel 12 , and the second channel 4 is used to communicate with the outer ring air inlet holes 22 on the closing member 2 at 90°.

[0061] Specifically, the closure 2 is a conical structure and a double-layer structure, the outer layer structure is sleeved on the outer peripheral side of the inner layer structure and the axes of the double-layer structures coincide, and the outer layer structure and the inner layer structure are both provided with inner ring air inlet holes 21 and outer ring air inlet holes 22 of different sizes along the radial direction of the closure 2, so as to form inner ring air inlet holes 21 and outer ring air inlet holes 22 of different apertures in a superimposed manner, thereby improving the accuracy of the gas entering the inner ring channel 11 and the outer ring channel 12. The inner ring air inlet holes 21 and the outer ring air inlet holes 22 are arranged at an angle starting from the position where the closure 2 is located at 0° in the valve body 1 and are arranged at a certain angle, for example, at an interval of 30°, which is a prior art and will not be described in detail here. Furthermore, a first channel 3 and a second channel 4 are also provided in the valve body 1. The first channel 3 is located on the side of the inner ring channel 11 and on the same horizontal plane. The first channel 3 is a cylindrical channel. The cylindrical channel includes a first section inclined to the inner ring channel 11 and a second section connected to the inner ring channel 11. The first section is used to connect with the inner ring air inlet hole 21 at 90° and 120° on the closure 2. It can be understood that when the closure 2 in the valve body 1 is rotated to 45°-120°, the first channel 3 will be connected with the two inner ring air inlet holes 21 at 90° and 120° on the closure 2, so as to supplement the gas into the inner ring channel 11 through the first channel 3. The second section is connected to the inner ring channel 11 from the middle area of ​​the first section, and the gas is supplemented to the inner ring channel 11 when the first section is connected, thereby reducing the influence of the large pressure drop caused by the double-layer structure of the closure 2. Moreover, compared with being arranged above or below the inner ring channel 11, it does not need to occupy the space in the height direction of the valve body 1, so as to reduce the manufacture of redundant valve body 1 models, and the existing valve body 1 can be used for improvement, thereby improving the versatility of the segment valve.

[0062] Similarly, a second channel 4 is also provided on the valve body 1 corresponding to the outer ring channel 12, and the outer ring air inlet hole 22 at 90° on the closure 2 is connected to the second channel 4. It can be understood that when the closure 2 in the valve body 1 is rotated to 60°-130°, the second channel 4 will be connected to the outer ring air inlet hole 22 at 90° on the closure 2. The setting position of the second channel 4 and the outer ring channel 12, the principle of supplementary gas and the connection relationship are the same as those of the inner ring channel 11 and the first channel 3, and will not be elaborated here.

[0063] It can be understood that in this embodiment, the first channel 3 is arranged between the position of the closing element at 0° and the inner ring channel 11, and is only connected to the inner ring air inlet 21 at 90° and 120°. The second channel 4 is arranged between the position of the closing element at 0° and the outer ring channel 12, and is only connected to the outer ring air inlet 22 at 90°. By limiting the communication angles of the first channel 3 and the second channel 4 with the inner ring air inlet 21 and the outer ring air inlet 22 on the closing element 2, the first channel 3 and the second channel 4 are not connected when the inner ring channel 11 and the outer ring channel 12 are just connected, so as to avoid the problem of premature ventilation that may occur when the first channel 3 and the second channel 4 are arranged on the sides of the inner ring channel 11 and the outer ring channel 12. And the above-mentioned angle range is the situation where the gas volume of the inner ring channel 11 and the outer ring channel 12 is the largest. At this time, when the shutter 2 is turned to turn off the fire, the gas volume gradually decreases until the first channel 3 and the second channel 4 are closed, so there will be no problem of delayed gas shut-off, which ensures the gas volume flowing into the burner by the stage valve. The firepower of the burner can meet user needs, thereby improving the user experience.

[0064] like Figure 6 , Figure 8 , Fig. 9 and Fig.11 As shown, in this embodiment, the inner ring air inlet hole 21 is an elliptical hole at 90° and 120° from the closing member 2, and the inner ring air inlet hole 21 extends to the plane where the first channel 3 is located at 90° and 120° from the closing member 2;

[0065] The outer ring air inlet hole 22 is an elliptical hole when it is 90° above the closing member 2, and extends to the plane where the second channel 4 is located when it is 90° above the closing member 2.

[0066] Specifically, the inner ring air inlet hole 21 at 90° and 120° on the closure 2 is an elliptical hole, and the outer ring air inlet hole 22 at 90° on the closure 2 is an elliptical hole. The length direction of the elliptical hole is consistent with the height direction of the closure 2, so that it extends along the height direction of the closure 2 through the elliptical hole to communicate with the first channel 3 or the second channel 4. It can be understood that the 90° outer ring air inlet hole 22 is connected to the second channel 4 at the upper half of the elliptical hole, and the non-elliptical hole is completely connected to the second channel 4. The same is true when the first channel 3 is connected to the inner ring air inlet hole 21. The inner ring air inlet holes 21 and the outer ring air inlet holes 22 located within the remaining angular range on the closure 2 are not connected to the first channel 3 or the second channel 4 due to their size and position, so as to achieve connection between the first channel 3 and the second channel 4 within a specific angular range. The elliptical holes can reduce the difficulty of structural improvement on the closure 2 and can ensure that sufficient gas enters the burner through the inner ring channel 11 and the outer ring channel 12. There is no need to increase the height of the closure 2, thereby reducing the difficulty of connecting the first channel 3 and the second channel 4.

[0067] like Figure 5 , Figure 7 and Fig.10 As shown, in this embodiment, the inner ring air inlet hole 21 is a circular hole when it is 0°-90° on the closing member 2, and the inner ring air inlet hole 21 is higher than the first channel 3 in the height direction when it is 0°-90° on the closing member 2;

[0068] The outer ring air inlet hole 22 is a circular hole when it is 0°-90° on the closing member 2, and is lower than the second channel 4 along the height direction when it is 0°-90° on the closing member 2.

[0069] Specifically, the inner ring air inlet hole 21 is a circular hole when the shutter 2 is at 0°-90°, which means that the outer layer structure of the shutter 2 is a circular hole, and the outer layer structure is used to communicate with the inner ring channel 11. Because the circular hole is higher than the lowest point of the elliptical hole in the height direction of the shutter 2, the circular hole will not communicate with the first channel 3 when the shutter 2 rotates to the first channel 3, and the first channel 3 will not replenish gas into the inner ring channel 11. In other words, the height of the circular hole in the height direction of the shutter 2 is higher than the entrance height of the first channel 3, and the shutter 2 will not be connected to the first channel 3 when it rotates within the range of 0°-90°. Similarly, the outer ring air inlet hole 22 is a circular hole when the shutter 2 is at 0°-90°, which means that the outer layer structure of the shutter 2 is a circular hole, and when the outer ring air inlet hole 22 is a circular hole, the height of the highest point of the elliptical hole in the height direction of the shutter 2 is lower than the highest point of the elliptical hole, so that the circular hole will not communicate with the second channel 4 when the shutter 2 rotates to the second channel 4. Through the above arrangement, the first channel 3 and the second channel 4 can be closed within a specific angle range to prevent the inner ring channel 11 and the outer ring channel 12 from being ventilated prematurely.

[0070] In addition, when the inner ring air inlet hole 21 is a circular hole, it is set higher than the first channel 3, and when the outer ring air inlet hole 22 is a circular hole, it is set lower than the second channel 4, so that the inner ring air inlet hole 21 and the outer ring air inlet hole 22 are close to each other along the height direction of the closure 2, so as to reduce the space occupied in the height direction of the closure 2, so that the closure 2 does not need to be extended in height, and the original height can be maintained, thereby improving the versatility of the closure 2 and the stage valve.

[0071] Of course, without affecting the total height of the closure 2, the inner ring air inlet hole 21 and the outer ring air inlet hole 22 can also be set to be far away from each other when they are circular holes, that is, when the inner ring air inlet hole 21 is a circular hole, the height is lower than the first channel 3, and when the outer ring air inlet hole 22 is a circular hole, the height is higher than the second channel 4, which can also achieve the above purpose. This is the prior art and will not be elaborated on here.

[0072] In this embodiment, a flow regulating assembly 5 is disposed in the first channel 3 and the second channel 4. One end of the flow regulating assembly 5 extends into the first channel 3 and the second channel 4 respectively and reciprocates along the extending direction.

[0073] Specifically, one end of the flow regulating component 5 is located in the connection between the first section and the second section of the first channel 3, and the other end of the flow regulating component 5 is set away from the first channel 3. The flow regulating component 5 reciprocates so that the position of the end of the flow regulating component 5 extending into the first channel 3 can change in the first channel 3. When the extending distance is large, the gas flow in the first channel 3 is reduced or even the first channel 3 can be closed, so that when the burner's demand for gas flow is reduced, the flow of the first channel 3 is timely adjusted to reduce the gas entering the inner ring channel 11. Similarly, when the extending distance of the flow regulating component 5 into the first channel 3 is reduced, the gas flow increases to continuously supplement the gas to the inner ring channel 11 to meet the firepower demand of the burner. The flow regulating component 5 can select a structure that performs reciprocating motion in the prior art, such as a hydraulic cylinder or a component that drives the slider to perform reciprocating motion. This is a prior art and will not be described in detail here.

[0074] It is understandable that a flow regulating component 5 is also provided in the second channel 4, and the setting position and movement direction are the same as those of the flow regulating component 5 provided in the first channel 3, and no further elaboration is given here.

[0075] like Fig.14 and Fig.15 As shown, in this embodiment, when a flow regulating component 5 is provided in the first channel 3, the first channel 3 is connected to each inner ring air inlet hole 21; when a flow regulating component 5 is provided in the second channel 4, the second channel 4 is connected to each outer ring air inlet hole 22.

[0076] Specifically, by setting the flow regulating component 5, the first channel 3 and the second channel 4 can be closed. At this time, each inner ring air inlet hole 21 is arranged to be connected with the first channel 3, so that it can be blocked by the flow regulating component 5 to prevent the gas from entering the inner ring channel 11 when it is not necessary to replenish the gas into the inner ring channel 11. At the same time, the first channel 3 can be closed by the flow regulating component 5 to avoid the problem of premature ventilation or delayed gas closing of the stage valve. Similarly, the flow regulating component 5 is arranged in the second channel 4, so that each outer ring air inlet hole 22 is arranged to be connected with the second channel 4.

[0077] In addition, each inner ring air inlet hole 21 is connected to the first channel 3, and each outer ring air inlet hole 22 is connected to 4. The flow regulating component 5 can also connect the first channel 3 and the second channel 4 when the amount of gas entering the inner ring channel 11 and the outer ring channel 12 when the shutter 2 initially rotates is small, so as to ensure that the pressure drop of the shutter 2 is reduced and the gas amount is sufficient when the stage valve provides a small amount of gas to the burner and the user's fire power demand is small.

[0078] In this embodiment, when the first channel 3 is communicated with each inner ring air inlet hole 21 , the first channel 3 is located between the 0° position of the shutter 2 and the inner ring channel 11 .

[0079] It can be understood that when the first channel 3 is located between the 0° position of the closure 2 and the inner ring channel 11, compared with the case where the first channel 3 is located between the inner ring channel 11 and the 120° position of the closure 2, the space occupied by the first channel 3 in the horizontal direction of the valve body 1 can be further reduced, and the internal space of the valve body 1 can be reasonably utilized without increasing the size of the valve body 1, thereby ensuring the versatility of the segment valve.

[0080] like Fig.12 and Fig.13 As shown, in this embodiment, the flow regulating component 5 is an adjusting pin, threaded holes are provided on the first channel 3 and the second channel 4, and the adjusting pin is screwed to the threaded holes.

[0081] Specifically, the first channel 3 extends from the inside of the valve body 1, and an adjusting pin is correspondingly provided at the connection between the first section and the second section of the first channel 3, and the first channel 3 is opened or closed by screwing the adjusting pin, so as to adjust the gas flow of the first channel 3. At the same time, the gas flow supplemented to the inner ring channel 11 is adjusted by the adjusting pin, so that the accuracy of the supplemented gas flow is further improved, and the user experience is improved. Similarly, the second channel 4 is also provided with a first section and a second section, and an adjusting pin is provided at the connection between the first section and the second section, which will not be described in detail here.

[0082] In this embodiment, the adjusting pin is arranged along the vertical direction, and one end of the adjusting pin away from the first channel 3 and the second channel 4 is located at the top of the valve body 1 .

[0083] Specifically, the adjusting pin is arranged along the height direction of the valve body 1, and one end of the adjusting pin is arranged near the top of the valve body 1, while the other end of the adjusting pin extends into the first channel 3. Similarly, the adjusting pin in the second channel 4 is arranged along the height direction of the valve body 1, and one end of the adjusting pin is arranged near the top of the valve body 1. By arranging one end of the adjusting pin at the top of the valve body 1, it is convenient for the user to screw the adjusting pin. This avoids the situation where the adjusting pin is located at the side or bottom of the valve body 1, which causes difficulty in screwing and inconvenience in use.

[0084] In this embodiment, a groove is arranged on the outer circumference of the adjusting pin. The groove is arranged on the outer circumference of the adjusting pin and is arranged close to the top of the valve body 1. A sealing member 6 is arranged in the groove.

[0085] Specifically, the adjusting pin is a screw structure, the end of the adjusting pin away from the first channel 3 and the second channel 4 is a head for connecting a screwing tool, the end of the adjusting pin extending into the first channel 3 and the second channel 4 is a rod, the outer peripheral side of the rod is provided with an external thread, the valve body 1 is provided with a receiving hole corresponding to the adjusting pin, the receiving hole is provided with an internal thread, and the receiving hole is communicated with the first channel 3 and the second channel 4, so that the adjusting pin can extend into the first channel 3 and the second channel 4 when it is screwed into the receiving hole. In addition, the outer peripheral side of the rod is also provided with a groove formed by a boss, the groove is arranged around the rod and a sealing member 6 is sleeved in the groove, and the sealing member 6 is a sealing ring in the prior art, for example, a sealing ring made of rubber material. When the adjusting pin is placed in the receiving hole, the sealing member 6 is provided to seal the gap between the adjusting pin and the inner wall of the receiving hole, so as to avoid gas leakage from the adjusting pin when replenishing gas, thereby ensuring the safety of the use of the stage valve.

[0086] This embodiment also provides a burner, which includes the above-mentioned stage valve.

[0087] Specifically, the burner includes the above-mentioned sectional valve, the burner is provided with a nozzle and the nozzle is respectively connected with the inner ring channel 11 and the outer ring channel 12, so as to supply gas to the inner ring fire cover and the outer ring fire cover of the burner through the inner ring channel 11 and the outer ring channel 12. The sectional valve is provided with a first channel 3 and a second channel 4 on the valve body 1, and the inner ring air inlet hole 21 and the outer ring air inlet hole 22 are connected with the first channel 3 and the second channel 4 at a specific angle on the closure 2, so that the sectional valve can ensure the gas flow when the burner needs sufficient gas, reduce the pressure drop of the closure 2, and improve the user experience.

[0088] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A sectional valve, comprising a valve body and a stopper arranged in the valve body, wherein the valve body is provided with an inner ring channel and an outer ring channel of different heights, characterized in that: The valve body is provided with a first channel and a second channel, the first channel is correspondingly provided at the horizontal plane where the inner ring channel is located, the second channel is correspondingly provided at the horizontal plane where the outer ring channel is located, the first channel is connected to the side of the inner ring channel, and the second channel is connected to the side of the outer ring channel; A plurality of inner ring air inlet holes are arranged on the closing member corresponding to the inner ring channel, and the first channel is used to communicate with the inner ring air inlet holes at 90° and 120° on the closing member; A plurality of outer ring air inlet holes are arranged on the closure corresponding to the outer ring channel, and the second channel is used to communicate with the outer ring air inlet holes on the closure at 90°.

2. The sectional valve according to claim 1, characterized in that: The inner ring air inlet hole is an elliptical hole at 90° and 120° from the closing part, and the inner ring air inlet hole extends to the plane where the first channel is located at 90° and 120° from the closing part; The outer ring air inlet hole is an elliptical hole at 90° above the closure, and extends to the plane where the second channel is located at 90° above the closure.

3. The sectional valve according to claim 2, characterized in that: The inner ring air inlet hole is a circular hole when it is 0°-90° above the closing part, and when it is 0°-90° above the closing part, the inner ring air inlet hole is higher than the first channel in the height direction; The outer ring air inlet hole is a circular hole when it is 0°-90° on the closure, and is lower than the second channel along the height direction when it is 0°-90° on the closure.

4. The sectional valve according to claim 1, characterized in that: A flow regulating component is arranged in the first channel and the second channel, and one end of the flow regulating component extends into the first channel and the second channel respectively and performs reciprocating motion along the extending direction.

5. The sectional valve according to claim 4, characterized in that: When a flow regulating component is provided in the first channel, the first channel is communicated with each of the inner ring air inlet holes; when a flow regulating component is provided in the second channel, the second channel is communicated with each of the outer ring air inlet holes.

6. The sectional valve according to claim 5, characterized in that: When the first channel is connected to each of the inner ring air inlet holes, the first channel is located between the 0° position of the closure and the inner ring channel.

7. The sectional valve according to claim 6, characterized in that: The flow regulating component is an adjusting pin, threaded holes are provided on the first channel and the second channel, and the adjusting pin is screwed to the threaded holes.

8. The sectional valve according to claim 7, characterized in that: The adjusting pin is arranged along the vertical direction, and one end of the adjusting pin away from the first channel and the second channel is located at the top of the valve body.

9. The sectional valve according to claim 8, characterized in that: A groove is arranged on the outer circumference of the adjusting pin. The groove is arranged on the outer circumference of the adjusting pin and is arranged close to the top of the valve body. A sealing member is arranged in the groove.

10. A burner, characterized in that: The burner comprises a stage valve according to any one of claims 1-9.

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