TW202117237A - Portable butane gas stove - Google Patents

Abstract

A portable butane gas stove includes a base, a heater, a heat conducting plate, and an adjustment device. The base has a gas chamber and a core chamber connected to the gas chamber. The gas chamber is adapted to accommodate a gas canister. The heater is placed in the core chamber. The heat conducting plate is movably coupled to the heater and adapted to transfer thermal energy from the heater. The heat conducting plate extends to the gas chamber and selectively contacts the gas canister accommodated in the gas chamber. The adjustment device includes a support member disposed at the core chamber and a linking member movably coupled to the support member. The linking member is fixed to the heat conducting plate, so that a distance between the heat conducting plate and heater is adjustable as the linking member moves relative to the supporting member.

Description

Cassette furnace

The invention relates to a cassette stove, especially a dual-purpose cassette stove for mountain and flat ground.

The cassette stove can be roughly divided into two categories: mountain and flat. Due to the shortcomings of butane in cassette gas tanks that it is difficult to output gas in low temperature environments, one of the methods currently adopted by cassette furnaces for high mountains is to add heat conducting fins in the gas tank, so that the cassette furnace can be used for combustion at the same time. The cassette gas tank is heated to maintain the firepower of the cassette furnace.

However, the above-mentioned cassette furnace for high mountains is equipped with a heat conducting sheet for heating the cassette gas tank, which makes the cassette furnace for high mountains unable to be used on flat ground or under normal temperature conditions, because once the cassette gas tank is heated in a normal temperature environment , On the contrary, the cassette gas tank is overheated and the safety device is activated, causing the cassette gas tank to automatically trip and the cassette stove cannot be used.

In view of this, how to overcome the various problems of the above-mentioned existing cassette furnace has become the goal of the relevant industry.

The cassette furnace provided by the present invention can change the distance between the gas tank and the heater by means of the thermal conductive sheet, so that the gas tank can adjust the heating efficiency according to environmental requirements.

The card furnace provided by the present invention includes a base, a heater, a heat conducting sheet and an adjusting device. The base has a first bottom and a second bottom connected to the first bottom. The first bottom is suitable for accommodating a gas tank. The heater is arranged at the second bottom. The heat-conducting sheet can move relative to the heater and is suitable for transferring heat energy from the heater, and the heat-conducting sheet extends to the first bottom and can contact the gas tank contained in the first bottom. The adjusting device includes a supporting member arranged on the second bottom and a linkage member movably connected to the supporting member. The linkage member is fixed to the thermal conductive sheet, so that the thermal conductive sheet changes the distance from the heater as the linkage member moves relative to the supporting member.

In an embodiment of the present invention, the supporting member has a positioning groove, and the positioning groove is provided with a first positioning portion and a second positioning portion with a height difference from the first positioning portion, and the linkage member is movably inserted in the positioning groove. Selectively positioned at the first positioning part or the second positioning part.

In an embodiment of the present invention, the positioning groove is provided with a curved arc section between the first positioning portion and the second positioning portion.

In an embodiment of the present invention, the adjusting device further includes a limiting member pivotally connected to the supporting member, and the limiting member is provided with a hook portion detachably buckled to the linkage member.

In an embodiment of the present invention, the thermal conductive sheet includes a top portion movably connected to the heater, a bottom portion opposite to the top portion, and a first connecting portion and a second connecting portion located between the top portion and the bottom portion. The bottom can contact the gas tank contained in the first bottom as the link moves relative to the support. The first connecting portion is fixed to the connecting member, and the second connecting portion has a height difference with the first connecting portion.

In an embodiment of the present invention, the second connecting portion has a through groove. The adjusting device further includes a shaft part pierced through the slot and an elastic part sleeved on the shaft part. The shaft member has a connecting end fixed to the second bottom and a stop end opposite to the connecting end, and the opposite ends of the elastic member abut against the stop end and the second connecting portion, respectively.

In an embodiment of the present invention, the thermal conductive sheet is made of metal and integrally bent to form the top, the bottom, the first connecting portion, and the second connecting portion.

In an embodiment of the present invention, the second connecting portion is arc-shaped so as to be suitable for selective ground contact with the gas tank accommodated in the first bottom.

In an embodiment of the present invention, the adjustment device includes two supporting members and two limiting members pivotally connected to each supporting member. The opposite ends of the linking member are respectively movably penetrated through the positioning grooves of each supporting member, and the hook portions of each limiting member are respectively detachably fastened to the linking member.

In an embodiment of the present invention, the cassette stove further includes a gas clamshell and a stove frame that are detachably covered on the base. The gas flip cover selectively shields the first bottom. The stove frame selectively shields the second bottom.

Based on the above, the cassette furnace provided by the above embodiment of the present invention changes the distance from the heater by the thermal conductive sheet moving with the linkage member relative to the support member. Therefore, the user can adjust the heating efficiency of the gas tank according to environmental requirements.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the appearance of a cassette furnace according to an embodiment of the present invention. Fig. 2 and Fig. 3 are respectively partial exploded schematic diagrams of the cassette furnace shown in Fig. 1. Fig. 4 is a top view of the cassette furnace shown in Fig. 1 with the furnace frame removed. Fig. 5 is a schematic cross-sectional view taken along the line 5-5 in Fig. 4. 1 to 5, the cassette furnace of this embodiment includes a base 10, a heater 20, a thermal conductive sheet 30, and an adjusting device 40. The base 10 has a first bottom 11 and a second bottom 12 connected to the first bottom 11. The first bottom 11 is suitable for accommodating a gas tank 90 so that the gas tank 90 can supply fuel to the heater 20. The heater 20 is disposed on the second bottom 12. In this embodiment, the cassette stove further includes a gas clamshell 50 and a stove 60 that are detachably covered on the base 10. The gas flip cover 50 selectively shields the first bottom 11, and the hob 60 selectively shields the second bottom 12 and exposes the heater 20.

The thermal conductive sheet 30 can move relative to the heater 20 to change the distance from the heater 20 and is suitable for transferring heat energy from the heater 20. The thermal conductive sheet 30 extends to the first bottom 11 and can contact the gas tank 90 accommodated in the first bottom 11. The thermal conductive sheet 30 includes a top 31 movably connected to the heater 20, a bottom 32 opposite to the top 31, and a first connecting portion 33 and a second connecting portion 34 between the top 31 and the bottom 32. The second connecting portion 34 has a through slot 341, and the through slot 341 can be formed in an oval shape. In this embodiment, in order to be able to transfer the heat energy from the heater 20, the thermal conductive sheet 30 can be made of metal and integrally bent to form the top 31, the bottom 32, the first connection portion 33, and the second connection portion 34, and the second connection The portion 34 and the first connecting portion 33 have a height difference, and the second connecting portion 34 is arc-shaped so as to be suitable for selective ground contact with the outer periphery of the gas tank 90 accommodated in the first bottom 11.

The adjusting device 40 includes at least one supporting member 41 disposed on the second bottom 12 and a linkage member 42 movably connected to the supporting member 41. The linkage member 42 is fixed to the first connecting portion 33 of the thermal conductive sheet 30, so that the bottom 32 of the thermal conductive sheet 30 moves with the linkage member 42 relative to the supporting member 41 to contact the gas tank 90 accommodated in the first bottom 11. The supporting member 41 has a positioning groove 411. The positioning groove 411 is provided with a first positioning portion 412 and a second positioning portion 413 with a height difference from the first positioning portion 412, and the linkage member 42 movably penetrates the positioning groove 411 It is selectively positioned at the first positioning portion 412 or the second positioning portion 413. In this embodiment, the supporting member 41 can be fixed to the second bottom 12 by screwing, the positioning groove 411 can have a cross-sectional shape similar to a 7-shape to form the first positioning portion 412 and the second positioning portion 413, and can A curved arc section 414 is provided between the first positioning portion 412 and the second positioning portion 413, so that the linkage member 42 can smoothly move and transform between the first positioning portion 412 and the second positioning portion 413. The adjusting device 40 further includes at least one limiting member 43 pivotally connected to the supporting member 41, and the limiting member 43 is provided with a hook 431 detachably fastened to the link 42. Therefore, when the hook portion 431 of the limiting member 43 is buckled to the linkage member 42, the linkage member 42 cannot move between the first positioning portion 412 and the second positioning portion 413, so as to provide a positioning effect. The adjusting device further includes a shaft 44 penetrating through the slot 341 and an elastic member 45 sleeved on the shaft 44. The shaft member 44 has a connecting end 441 fixed to the second bottom 12 and a stopping end 442 opposite to the connecting end 441, and opposite ends of the elastic member 45 abut against the stopping end 442 and the second connecting portion, respectively 34.

In this embodiment, the adjusting device 40 can include two supporting members 41 and two limiting members 43 pivotally connected to each supporting member 41. The opposite ends of the linking member 42 are respectively movably penetrated through the positioning grooves 411 of each supporting member 41, and the hook portions 431 of each limiting member 43 are respectively detachably fastened to the linking member 42.

Fig. 6 to Fig. 8 are schematic diagrams of the enlarging action of the circled part of Fig. 5 respectively. 6 to 8, the linkage member 42 can move between the first positioning portion 412 and the second positioning portion 413 of the positioning groove 411, thereby adjusting the distance between the top 31 of the thermal conductive sheet 30 and the heater 20 , And whether the bottom 32 of the thermal conductive sheet 30 is in contact with the gas tank 90 contained in the first bottom 11. 6 shows that the linkage member 42 is positioned at the first positioning portion 412 of the positioning groove 411, the hook portion 431 of the limiting member 43 is buckled to the linkage member 42, and the elastic member 45 is compressed between the stop end 442 and the second connecting portion 34 between. At this time, the top 31 of the thermal conductive sheet 30 is adjacent to the heater 20, and the bottom 32 of the thermal conductive sheet 30 is in contact with the outer periphery of the gas tank 90 contained in the first bottom 11. Once the heater 20 is turned on, the heat will pass through the thermal conductive sheet 30 is transferred to the gas tank 90 to improve the heating efficiency of the gas tank 90, so as to facilitate the use of the cassette furnace in a mountain or high altitude environment.

FIG. 7 shows that the hook portion 431 of the limiting member 43 is separated from the linkage member 42 so that the linkage member 42 can move from the first positioning portion 412 of the positioning groove 411 to the second positioning portion 413.

FIG. 8 shows that the linkage member 42 is positioned at the second positioning portion 413 of the positioning groove 411, the hook portion 431 of the limiting member 43 is buckled to the linkage member 42 again, and the elastic member 45 is elastically restored. At this time, the height position of the thermal conductive sheet 30 is lowered, that is, the height distance between the thermal conductive sheet 30 and the heater 20 is changed, so that the top 31 of the thermal conductive sheet 30 is far away from the heater 20, and the bottom 32 of the thermal conductive sheet 30 is separated and accommodated in the first A gas tank 90 with a bottom 11 and an interval with the gas tank 90 is created. At this time, even if the heater 20 is turned on, the efficiency of transferring heat energy to the gas tank 90 will be greatly reduced because the top 31 of the thermal conductive sheet 30 is far away from the heater 20, which facilitates the use of the cassette furnace in a flat ground or a normal temperature environment.

In summary, the cassette furnace of this embodiment can be selectively positioned at the first positioning portion 412 or the second positioning portion 413 of the positioning groove 411 by the linkage 42 so that the thermal conductive sheet 30 can be changed to the heater 20. The distance between. Therefore, the user can adjust the heating efficiency of the gas tank 90 according to environmental requirements.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to those defined by the attached patent application scope.

10: Pedestal 11: The first bottom 12: second bottom 20: heater 30: Thermal conductive sheet 31: top 32: bottom 33: The first connecting part 34: The second connecting part 341: piercing 40: adjustment device 41: Support 411: positioning slot 412: The first positioning part 413: second positioning part 414: Curved arc 42: Linkage 43; limit piece 431: Hook 44: Shaft 441: connection end 442: Stop End 45: Elastic 50: Gas flip cover 60: Stove 90: Gas tank

Fig. 1 is a schematic diagram of the appearance of a cassette furnace according to an embodiment of the present invention. Fig. 2 and Fig. 3 are respectively partial exploded schematic diagrams of the cassette furnace shown in Fig. 1. Fig. 4 is a top view of the cassette furnace shown in Fig. 1 with the furnace frame removed. Fig. 5 is a schematic cross-sectional view taken along the line 5-5 in Fig. 4. Fig. 6 to Fig. 8 are schematic diagrams of the enlarging action of the circled part of Fig. 5 respectively.

10: Pedestal

11: The first bottom

12: second bottom

20: heater

30: Thermal conductive sheet

31: top

32: bottom

33: The first connecting part

34: The second connecting part

341: piercing

40: adjustment device

41: Support

411: positioning slot

42: Linkage

43: limit piece

431: Hook

44: Shaft

441: connection end

442: Stop End

45: Elastic

Claims (10)

A cassette furnace, including: A base having a first bottom and a second bottom connected to the first bottom, the first bottom being suitable for accommodating a gas tank; A heater arranged on the second bottom; A thermal conductive sheet capable of moving relative to the heater and suitable for transferring heat energy from the heater, the thermal conductive sheet extending to the first bottom and capable of contacting the gas tank accommodated in the first bottom; and An adjusting device includes at least one supporting member arranged on the second bottom and a linkage member movably connected to the supporting member. The linkage member is fixed to the thermally conductive sheet so that the thermally conductive sheet follows the linkage member relative to the The support member moves to change the distance from the heater. The cassette furnace according to item 1 of the scope of patent application, wherein the at least one supporting member has a positioning groove, and the positioning groove is provided with a first positioning portion and a second positioning portion with a height difference from the first positioning portion , And the linkage member movably penetrates the positioning groove and is selectively positioned at the first positioning portion or the second positioning portion, so that the thermal conductive sheet changes with the heating as the linkage member moves relative to the support member The height distance between the devices. As described in item 2 of the scope of patent application, the positioning groove is provided with a curved arc section between the first positioning portion and the second positioning portion. As described in the first item of the scope of patent application, the adjustment device further includes at least one limiting member pivotally connected to the at least one supporting member, and the limiting member is provided with a detachable buckle connected to the linkage The hook of the piece. As described in the first item of the patent application, the thermal conductive sheet includes a top part movably connected to the heater, a bottom part opposite to the top part, and a first part located between the top part and the bottom part. A connecting part and a second connecting part, the bottom part can contact the gas tank accommodated in the first bottom as the connecting part moves relative to the supporting part, the first connecting part is fixed to the connecting part, and the second connecting part There is a height difference between the connecting portion and the first connecting portion. As described in item 5 of the scope of patent application, wherein the second connecting portion has a through slot, and the adjusting device further includes a shaft through the through slot and an elastic sleeve connected to the shaft. The shaft member has a connecting end fixed to the second bottom and a stop end opposite to the connecting end, and the opposite ends of the elastic member abut against the stop end and the second connecting portion, respectively . As described in item 5 of the scope of patent application, the thermal conductive sheet is made of metal and integrally bent to form the top, the bottom, the first connecting portion, and the second connecting portion. The cassette furnace according to item 7 of the scope of patent application, wherein the second connecting portion is arc-shaped so as to be suitable for selectively ground contacting the gas tank contained in the first bottom. As described in item 4 of the scope of patent application, the adjustment device includes two support members and two limit members pivotally connected to each support member, and opposite ends of the linkage member are respectively movably penetrated In the positioning groove of each supporting member, and the hook portion of each limiting member is respectively detachably fastened to the linkage member. For example, the cassette stove described in any one of the scope of patent application 1 to 9, further comprising a gas flip cover and a stove frame detachably covering the base, and the gas flip cover selectively shields The first bottom and the furnace frame selectively shield the second bottom.

Images