Alcohol stove

Abstract

The embodiment of the utility model provides an alcohol stove, including a liquid storage tank for storing alcohol, a furnace nozzle and a gasification pipe, a pressure feedback pipe and a flow regulating valve, which are arranged adjacent to each other on the top surface of the liquid storage tank. The gasification pipe is connected to the inner cavity of the liquid storage tank and also connected to the inner cavity of the furnace nozzle. Alcohol burns at the furnace nozzle to heat the gasification pipe so that the alcohol entering the gasification pipe is gasified, expanded and pressurized. The pressure feedback pipe is connected to the inner cavity of the gasification pipe and the furnace nozzle to guide the gasified alcohol to the inner cavity of the furnace nozzle. The flow regulating valve is arranged between the pressure feedback pipe and the inner cavity of the furnace nozzle to control the flow rate of the gasified alcohol. The alcohol stove of the embodiment of the utility model has a simple structure and convenient firepower adjustment.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of stoves, in particular to an alcohol stove. Background Art

[0002] An alcohol stove is a heating appliance that uses alcohol as fuel and is widely used in catering, outdoor camping and other scenarios.

[0003] In order to provide a stable heat source, the existing alcohol stove using self-pressurization usually includes: a liquid storage tank for storing alcohol, a gasification pipe with two ends inserted into the container in a bent shape, and a siphon material filler, the siphon material filler is filled inside the gasification pipe, and at least one vent hole is opened on the bottom side surface of the inner ring at the bend of the gasification pipe. In specific implementation, the gasified alcohol is burned through the vent hole of the boosting pipe, and the boosting pipe is continuously heated to gasify the alcohol in the liquid storage tank and complete the pressurization.

[0004] However, the inventors found in the actual implementation that when adjusting the firepower of the above-mentioned self-pressurized alcohol stove during combustion, it is necessary to manually add water to the liquid storage tank to dilute the concentration of the alcohol liquid, or manually press the external booster ball to pressurize the alcohol stove to complete the firepower adjustment, and the operation method is relatively cumbersome. Utility Model Content

[0005] The technical problem to be solved by the embodiment of the utility model is to provide an alcohol stove, which is convenient for adjusting the firepower of the self-pressurized alcohol stove.

[0006] To solve the above technical problems, the embodiment of the utility model adopts the following technical scheme: an alcohol stove, comprising a liquid storage tank for storing alcohol, a furnace nozzle and a vaporization pipe, a pressure feedback pipe and a flow regulating valve, the vaporization pipe is connected with the inner cavity of the liquid storage tank and also connected with the inner cavity of the furnace nozzle, alcohol burns at the furnace nozzle and heats the vaporization pipe to vaporize, expand and increase pressure of the alcohol entering the vaporization pipe, the pressure feedback pipe correspondingly connects the vaporization pipe and the inner cavity of the furnace nozzle to guide the vaporized alcohol to the inner cavity of the furnace nozzle, and the flow regulating valve is arranged between the pressure feedback pipe and the inner cavity of the furnace nozzle to control the flow rate of the vaporized alcohol.

[0007] Furthermore, the flow regulating valve comprises:

[0008] A valve body, wherein a linear flow hole is formed inside, and a connecting nozzle corresponding to the pressure feedback tube and the flow hole is arranged on the outside of the valve body, wherein one end of the flow hole is a plug-in end and the other end is connected to the inner cavity of the furnace nozzle; and

[0009] The valve core is in the shape of a straight rod and one end of which is inserted into the circulation hole from the plug-in end of the circulation hole and the other end is exposed outside the circulation hole as an operating part. A first sealing ring and a second sealing ring arranged at a first predetermined interval are also provided between the outer wall of the valve core and the inner wall of the circulation hole, wherein the first sealing ring is fixed on the valve body or the valve core and is always located between the connecting nozzle and the plug-in end of the circulation hole during the sliding process of the valve core in the circulation hole, the second sealing ring is fixed on the valve core, and a circulation air gap is provided between the section of the valve core located between the second sealing ring and the furnace nozzle and the inner wall of the circulation hole, when the valve core slides along the circulation hole to a closed position, the second sealing ring is located between the connecting nozzle and the furnace nozzle, and when the valve core slides along the circulation hole to a conducting position, the second sealing ring is located between the connecting nozzle and the plug-in end of the circulation hole and is connected to the connecting nozzle by the circulation air gap.

[0010] Furthermore, a buffer ring groove is formed on the outer wall of the valve core at a position between the second sealing ring and the furnace nozzle, which is recessed around the center axis of the valve core. The outer diameter of the section of the valve core located between the buffer ring groove and the furnace nozzle is smaller than the inner diameter of the flow hole to form a gap, or an air guide groove is provided on the outer wall of the section of the valve core located between the buffer ring groove and the furnace nozzle, which extends along the axial direction of the valve core and passes through to the end face of the valve core near the furnace nozzle. The flow air gap is jointly constituted by the buffer ring groove and the gap, or the flow air gap is constituted by the connection between the buffer ring groove and the air guide groove. When the valve core slides along the flow hole to the conducting position, the buffer ring groove is connected to the connecting nozzle.

[0011] Furthermore, an end cover for closing the plug-in end opening of the flow hole is assembled on the valve body, and a through hole for the corresponding end of the valve core to pass through is opened in the middle of the end cover, and the outer wall of the valve core and the insertion end of the valve core are respectively provided with a first stop portion and a second stop portion for cooperating with the inner wall of the end cover and the inner cavity wall of the furnace nozzle to limit the sliding stroke of the valve core.

[0012] Furthermore, two annular embedding grooves for embedding the first sealing ring and the second sealing ring are provided on the outer side wall of the valve core corresponding to the center axis of the valve core.

[0013] Furthermore, the furnace nozzle and the valve body are integrally formed.

[0014] Furthermore, a gas guide nozzle is provided on the top wall of the liquid storage tank, and the gasification pipe is connected to the gas guide nozzle.

[0015] Furthermore, the gasification tube is arranged in an inverted U shape, and both ends of the gasification tube are connected to the inner cavity of the liquid storage tank through correspondingly arranged gas guide nozzles. A plurality of the gasification tubes are symmetrically arranged around the furnace nozzle, and the middle section of each of the gasification tubes is connected to the pressure feedback tube.

[0016] Furthermore, the alcohol stove also includes a drainage strip with one end extending into the alcohol in the liquid storage tank and the other end filling the vaporization tube to siphon the alcohol in the liquid storage tank into the vaporization tube.

[0017] Furthermore, a filling tube for filling alcohol into the liquid storage tank is also provided on the top wall of the liquid storage tank, the inner end of the filling tube extends into the inner cavity of the liquid storage tank to a predetermined depth and the outer end port is sealed with a sealing plug.

[0018] By adopting the above technical scheme, the embodiment of the utility model has at least the following beneficial effects: the embodiment of the utility model adds a pressure feedback tube and a flow regulating valve, and the vaporization tube is connected to the inner cavity of the furnace nozzle through the pressure feedback tube and the flow regulating valve. The combustion of alcohol pre-added to the furnace nozzle will heat the vaporization tube, causing the alcohol entering the vaporization tube from the liquid storage tank to vaporize, expand and increase pressure, and then flow to the furnace nozzle through the pressure feedback tube and the flow regulating valve, thereby realizing a continuous supply of alcohol. The flow regulating valve can also be used to control the flow rate of the vaporized alcohol to achieve the effect of controlling the firepower. Compared with the traditional firepower adjustment method, the alcohol stove of the utility model has a simple structure and convenient firepower adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the disassembled three-dimensional structure of an optional embodiment of the alcohol stove of the utility model.

[0020] Figure 2 It is a combined three-dimensional structural schematic diagram of an optional embodiment of the alcohol stove of the utility model.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of a valve core of an optional embodiment of the alcohol stove of the utility model.

[0022] Figure 4 It is a schematic cross-sectional structure diagram of an optional embodiment of the alcohol stove of the utility model when the valve core slides along the flow hole to a closed position.

[0023] Figure 5 yes Figure 4 A partial enlarged view of part A in the middle.

[0024] Figure 6 It is a partially enlarged schematic diagram of the cross-sectional structure of an optional embodiment of the alcohol stove of the utility model when the valve core slides along the flow hole to the conduction position. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following exemplary embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. In addition, the embodiments and features in the embodiments of the present invention may be combined with each other without conflict.

[0026] like Figure 1-Figure 6 As shown, an optional embodiment of the utility model provides an alcohol stove, including a liquid storage tank 1 for storing alcohol, a furnace nozzle 2 and a vaporization pipe 3, which are adjacently arranged on the top surface of the liquid storage tank 1, a pressure feedback pipe 4 and a flow regulating valve 5, the vaporization pipe 3 is connected with the inner cavity of the liquid storage tank 1 and also connected with the inner cavity of the furnace nozzle 2, alcohol burns at the furnace nozzle 2 to heat the vaporization pipe 3 so that the alcohol entering the vaporization pipe 3 is vaporized, expanded and pressurized, the pressure feedback pipe 4 is correspondingly connected with the vaporization pipe 3 and the inner cavity of the furnace nozzle 2 to guide the vaporized alcohol to the inner cavity of the furnace nozzle 2, and the flow regulating valve 5 is arranged between the inner cavities of the furnace nozzle to control the flow rate of the vaporized alcohol.

[0027] The embodiment of the utility model adds a pressure feedback pipe 4 and a flow regulating valve 5, and the gasification pipe 3 is connected to the inner cavity of the furnace nozzle 2 through the pressure feedback pipe 4 and the flow regulating valve 5. The combustion of alcohol pre-added to the furnace nozzle 2 will heat the gasification pipe 3, so that the alcohol entering the gasification pipe 3 from the liquid storage tank 1 will be gasified, expanded and pressurized, and then flow into the furnace nozzle 2 through the pressure feedback pipe 4 and the flow regulating valve 5, thereby realizing a continuous supply of alcohol. The flow rate of the gasified alcohol can also be controlled by the flow regulating valve 5 to achieve the effect of controlling the size of the fire. Compared with the traditional firepower adjustment method, the alcohol stove of the utility model has a simple structure and convenient firepower adjustment. In specific implementation, a storage tray 25 for storing alcohol is provided on the furnace nozzle 2 so as to preheat the gasification pipe 3 after the alcohol is ignited.

[0028] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the flow regulating valve 5 includes:

[0029] A valve body 51 is formed with a linear flow hole 510 inside, and a connecting nozzle 511 corresponding to the pressure feedback tube 4 and the flow hole 510 is provided on the outside of the valve body 51. One end of the flow hole 510 is a plug-in end and the other end is connected to the inner cavity of the furnace nozzle 2; and

[0030] The valve core 53 is in the shape of a straight rod, one end of which is inserted into the circulation hole 510 from the plug-in end of the circulation hole 510, and the other end of which is exposed outside the circulation hole 510 as an operating portion 530. A first sealing ring 531 and a second sealing ring 533 arranged at a first predetermined interval are further provided between the outer wall of the valve core 53 and the inner wall of the circulation hole 510, wherein the first sealing ring 531 is fixed on the valve body 51 or the valve core 53 and is always located between the connecting nozzle 511 and the plug-in end of the circulation hole 510 during the sliding process of the valve core 53 in the circulation hole 510. The second sealing ring 533 is fixed on the valve core 53, and a flow air gap is provided between the section of the valve core 53 between the second sealing ring 533 and the furnace nozzle 2 and the inner wall of the flow hole 510. When the valve core 53 slides along the flow hole 510 to a closed position, the second sealing ring 533 is located between the connecting nozzle 511 and the furnace nozzle 2. When the valve core 53 slides along the flow hole 510 to a conducting position, the second sealing ring 533 is located between the connecting nozzle 511 and the plug-in end of the flow hole 510 and is connected to the connecting nozzle 511 via the flow air gap.

[0031] In this embodiment, a flow regulating valve 5 is formed by providing a valve body 51 and a valve core 53 with one end inserted into the internal flow hole 510 of the valve body 51 and the other end serving as an operating portion 530 for the user to pull, wherein the flow hole 510 in the valve body 51 is connected to the furnace nozzle 2 and the outer side of the valve body 51 is also connected to the pressure feedback pipe 4 by providing a connecting nozzle 511, thereby ensuring the communication effect between the pressure feedback pipe 4 and the gas channel; and a first sealing ring 531 and a second sealing ring 533 are provided at corresponding positions on the valve core 53, and the valve core 53 is connected along the When the circulation hole 510 slides to the closed position, the valve core 53 and the two sealing rings can form a closed space for the connecting nozzle 511 to prevent the transportation of vaporized alcohol; when the second sealing ring 533 slides synchronously with the valve core 53 in the circulation hole 510, it is only necessary to use the second sealing ring 533 to block the circulation air gap, and the second sealing ring 533 is fixed on the valve core 53, and the first sealing ring 531 can be fixed on the valve body 51 or the valve core 53. The structural designs are diverse and can all operate stably.

[0032] In such Figure 2 In the embodiment, handles 58 are pivotally connected to the two opposite side walls of the outer end of the valve core 53, so that the user can hold and operate the valve core 53. When the alcohol stove is not in use, the handles 58 can be rotated and folded inward to save storage space of the alcohol stove.

[0033] In another optional embodiment of the present invention, Figure 1-Figure 6As shown, a buffer ring groove 534 is formed on the outer wall of the valve core 53 at a position between the second sealing ring 533 and the furnace nozzle 2, which is recessed around the central axis of the valve core 53. The outer diameter of the section of the valve core 53 between the buffer ring groove 534 and the furnace nozzle 2 is smaller than the inner diameter of the flow hole 510 to form a gap 535, or an air guide groove is provided on the outer wall of the section of the valve core 53 between the buffer ring groove 534 and the furnace nozzle 2, which extends along the axial direction of the valve core 53 and passes through to the end face of the valve core 53 near the furnace nozzle 2. The flow air gap is jointly constituted by the buffer ring groove 534 and the gap 535, or the flow air gap is constituted by the communication between the buffer ring groove 534 and the air guide groove. When the valve core 53 slides along the flow hole 510 to the conduction position, the buffer ring groove 534 is connected to the connecting nozzle 511. In this embodiment, a buffer ring groove 534 is recessed at a corresponding position on the outer wall of the valve core 53. The section of the valve core 53 between the buffer ring groove 534 and the furnace nozzle 2 is provided with a gap 535 or an air guide groove. The buffer ring groove 534 and the gap 535 or the air guide groove can form a circulating air gap, which can reasonably optimize the spatial layout inside the valve body 51 and allow the vaporized alcohol to flow smoothly into the inner cavity of the furnace nozzle 2.

[0034] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the valve body 51 is further assembled with an end cap 55 for closing the plug-in end opening outside the plug-in end opening of the flow hole 510, and a through hole 550 is provided in the middle of the end cap 55 for the corresponding end of the valve core 53 to pass through, and the outer wall of the valve core 53 and the insertion end of the valve core 53 are respectively provided with a first stopper 537 and a second stopper 538 for cooperating with the inner wall of the end cap 55 and the inner cavity wall of the furnace nozzle 2 to limit the sliding stroke of the valve core 53. In a specific implementation, the first stopper 838 is a step surface formed on one side end of the step on the valve core 53, and the second stopper 538 is a step surface formed on the inner end head of the valve core 53. In this embodiment, the end cover 55 is assembled on the outer side of the valve body 51, so that the valve core 53 can be conveniently encapsulated in the valve body 51. In addition, the outer wall of the valve core 53 and the insertion end of the valve core 53 are respectively provided with a first stop portion 537 and a second stop portion 538. When the valve core 53 slides along the flow hole 510 toward its inner end, when the second stop portion 538 abuts against the inner cavity wall of the furnace nozzle 2 and is limited, the second sealing ring 533 blocks the flow air gap accordingly, and the vaporized alcohol in the vaporization tube 3 cannot pass to the furnace nozzle 2 for release and combustion; when the valve core 53 slides along the flow hole 510 toward its outer end, the first stop portion 537 abuts against the inner wall of the end cover 55 and is limited, then the buffer ring groove 534 is connected to the connecting nozzle 511, and at this time, the vaporized alcohol in the vaporization tube 3 can be released and burned normally.

[0035] It should be noted that when the valve core 53 gradually slides from the closed position to the conducting position along the flow hole 510, the opening of the connecting nozzle 511 facing the buffer ring groove 534 increases accordingly. Synchronously, the flow rate of vaporized alcohol increases as the opening increases, and the firepower also increases accordingly. Conversely, reducing the opening will reduce the firepower, thereby effectively adjusting the firepower.

[0036] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, two annular embedding grooves 539 are provided on the outer wall of the valve core 53 corresponding to the center axis of the valve core 53, which are used to embed the first sealing ring 531 and the second sealing ring 533 respectively. In this embodiment, two annular embedding grooves 539 are provided on the outer wall of the valve core 53 corresponding to the center axis of the valve core 53, so that the structure is easy to process and form, and the first sealing ring 531 and the second sealing ring 533 are inserted into the corresponding annular embedding grooves 539, so that the assembly is convenient.

[0037] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the furnace nozzle 2 is integrally formed with the valve body 51. The furnace nozzle 2 of this embodiment is integrally formed with the valve body 51, and the overall structure has high strength and good stability.

[0038] In another optional embodiment of the present invention, Figure 1-Figure 5 As shown, the top wall of the liquid storage tank 1 is also provided with an air guide nozzle 11, and the gasification pipe 3 is connected to the air guide nozzle 11. The top wall of the liquid storage tank 1 of this embodiment is also provided with an air guide nozzle 11 connected to the gasification pipe 3, so that after the gasification pipe 3 is preheated, the gasified alcohol in the liquid storage tank 1 can be guided into the gasification pipe 3 through the air guide nozzle 11. In the specific implementation, the top wall of the liquid storage tank 1 is also protrudingly provided with a threaded column 13 for convenient fixing of the furnace nozzle 2 with the corresponding thread; in addition, by providing the bottom wall and the top wall of the liquid storage tank 1 with the following Figure 4 As shown in the curved wall, the curved wall can disperse the inner cavity pressure to a larger area, thereby reducing the pressure concentration per unit area and improving the overall pressure resistance of the liquid storage tank 1.

[0039] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the gasification tube 3 is arranged in an inverted U shape, and both ends of the gasification tube 3 are connected to the inner cavity of the liquid storage tank 1 through correspondingly arranged gas guide nozzles 11, and multiple gasification tubes 3 are symmetrically arranged around the furnace nozzle 2, and the middle section of each gasification tube 3 is connected to the pressure feedback tube 4. In this embodiment, by arranging multiple gasification tubes 3, it is convenient for the fire source on the furnace nozzle 2 to heat multiple gasification tubes 3 at the same time, so as to improve the efficiency of alcohol vaporization and expansion in the gasification tube 3, and the pressurization effect is good.

[0040] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the alcohol stove further includes a drainage strip 9, one end of which extends into the alcohol in the liquid storage tank 1 and the other end is filled in the vaporization tube 3 to siphon the alcohol into the vaporization tube 3. In this embodiment, by adding the drainage strip 9, when a pressure difference is formed in the liquid storage tank 1, the alcohol in the inner cavity of the liquid storage tank 1 is sucked into the vaporization tube 3 through the drainage strip 9, so as to improve the efficiency of vaporization and expansion of the alcohol in the vaporization tube 3, and the pressurization effect is good.

[0041] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, a liquid injection tube 6 for filling alcohol into the liquid storage tank 1 is also provided on the top wall of the liquid storage tank 1, and the inner end of the liquid injection tube 6 extends into the inner cavity of the liquid storage tank 1 to a predetermined depth, while the outer end port is blocked by a sealing plug 61. In this embodiment, a liquid injection tube 6 is provided on the top wall of the liquid storage tank 1, so that the user can fill the liquid storage tank 1 with alcohol, and the inner end of the liquid injection tube 6 is also extended into the inner cavity of the liquid storage tank 1 to a predetermined depth, so as to avoid the height of the alcohol added to the liquid storage tank 1 to exceed the inner end of the liquid injection tube 6, so that the inner cavity of the liquid storage tank 1 has enough gasification and pressurization space to ensure the pressurization effect of the alcohol stove; in addition, the liquid injection tube 6 is correspondingly blocked by means of a sealing plug 61 to prevent the alcohol in the liquid storage tank 1 from leaking out.

[0042] In another optional embodiment of the present invention, Figure 1-Figure 6 As shown, the alcohol stove also includes a windshield 7 and a support frame 8 which are respectively arranged adjacent to each other on the top surface of the liquid storage tank 1. The windshield 7 can effectively block the external wind to ensure the stability of the flame, and the height of the support frame 8 is higher than the position of the top opening of the windshield 7, which is convenient for the heating appliance to be mounted on the support frame 8 for use.

[0043] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many variations without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the scope of protection of the present invention.

Claims

1. An alcohol stove, comprising a liquid storage tank for storing alcohol, a furnace nozzle and a gasification pipe arranged adjacent to each other on the top surface of the liquid storage tank, the gasification pipe is connected to the inner cavity of the liquid storage tank and also connected to the inner cavity of the furnace nozzle, alcohol burns at the furnace nozzle to heat the gasification pipe so that the alcohol entering the gasification pipe is gasified, expanded and pressurized; characterized in that: The alcohol furnace also includes a pressure feedback tube for correspondingly connecting the vaporization tube and the inner cavity of the furnace nozzle to guide the vaporized alcohol into the inner cavity of the furnace nozzle, and a flow regulating valve arranged between the pressure feedback tube and the inner cavity of the furnace nozzle to control the flow rate of the vaporized alcohol.

2. The alcohol stove according to claim 1, characterized in that: The flow regulating valve comprises: A valve body, wherein a linear flow hole is formed inside, and a connecting nozzle corresponding to the pressure feedback tube and the flow hole is arranged on the outside of the valve body, wherein one end of the flow hole is a plug-in end and the other end is connected to the inner cavity of the furnace nozzle; and The valve core is in the shape of a straight rod and one end of which is inserted into the circulation hole from the plug-in end of the circulation hole and the other end is exposed outside the circulation hole as an operating part. A first sealing ring and a second sealing ring arranged at a first predetermined interval are also provided between the outer wall of the valve core and the inner wall of the circulation hole, wherein the first sealing ring is fixed on the valve body or the valve core and is always located between the connecting nozzle and the plug-in end of the circulation hole during the sliding process of the valve core in the circulation hole, the second sealing ring is fixed on the valve core, and a circulation air gap is provided between the section of the valve core located between the second sealing ring and the furnace nozzle and the inner wall of the circulation hole, when the valve core slides along the circulation hole to a closed position, the second sealing ring is located between the connecting nozzle and the furnace nozzle, and when the valve core slides along the circulation hole to a conducting position, the second sealing ring is located between the connecting nozzle and the plug-in end of the circulation hole and is connected to the connecting nozzle by the circulation air gap.

3. The alcohol stove according to claim 2, characterized in that: A buffer ring groove is formed on the outer wall of the valve core at a position between the second sealing ring and the furnace nozzle, which is recessed around the center axis of the valve core. The outer diameter of the section of the valve core located between the buffer ring groove and the furnace nozzle is smaller than the inner diameter of the flow hole to form a gap, or an air guide groove is provided on the outer wall of the section of the valve core located between the buffer ring groove and the furnace nozzle, which extends along the axial direction of the valve core and passes through to the end face of the valve core near the furnace nozzle. The flow air gap is jointly formed by the buffer ring groove and the gap, or the flow air gap is formed by the connection between the buffer ring groove and the air guide groove. When the valve core slides along the flow hole to the conduction position, the buffer ring groove is connected to the connecting nozzle.

4. The alcohol stove according to claim 2, characterized in that: An end cover for closing the plug-in end opening of the flow hole is assembled on the valve body, and a through hole is opened in the middle of the end cover for the corresponding end of the valve core to pass through. The outer wall of the valve core and the insertion end of the valve core are respectively provided with a first stopper and a second stopper for cooperating with the inner wall of the end cover and the inner cavity wall of the furnace nozzle to limit the sliding stroke of the valve core.

5. The alcohol stove according to claim 2, characterized in that: Two annular embedding grooves for embedding the first sealing ring and the second sealing ring are respectively provided on the outer side wall of the valve core and surround the central axis of the valve core.

6. The alcohol stove according to claim 2, characterized in that: The furnace nozzle and the valve body are formed in one piece.

7. The alcohol stove according to claim 1, characterized in that: The top wall of the liquid storage tank is also provided with an air guide nozzle, and the gasification pipe is butted against the air guide nozzle.

8. The alcohol stove according to claim 7, characterized in that: The gasification tube is arranged in an inverted U shape, and both ends of the gasification tube are connected to the inner cavity of the liquid storage tank through correspondingly arranged gas guide nozzles. A plurality of the gasification tubes are symmetrically arranged around the furnace nozzle, and the middle section of each of the gasification tubes is connected to the pressure feedback tube.

9. The alcohol stove according to claim 1 or 7, characterized in that: The alcohol stove also includes a drainage strip with one end extending into the alcohol in the liquid storage tank and the other end filling the vaporization tube to siphon the alcohol in the liquid storage tank into the vaporization tube.

10. The alcohol stove according to claim 1, characterized in that: The top wall of the liquid storage tank is also provided with an injection tube for adding alcohol into the liquid storage tank. The inner end of the injection tube extends into the inner cavity of the liquid storage tank to a predetermined depth and the outer end port is sealed with a sealing plug.

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