Vertical efficient combustion hand warming stove

Abstract

The utility model discloses a vertical efficient combustion hand warming stove, which relates to the technical field of hand warming stoves and comprises an upper shell, a lower shell, a bottom cover, a wick, a cotton ball, a middle shell, a spring, a catalyst and a protective mesh enclosure, the protective mesh enclosure is mounted in the middle shell through a mounting structure, the cotton ball is plugged on the inner side of the lower end of the lower shell, and the lower end of the lower shell is connected with the spring. One end of the wick wraps the inner side of the cotton ball, the upper end of the wick penetrates through the center of the mounting structure, the spring is arranged on the outer side of the wick in a sleeving mode, and a gap is formed between the catalyst plug and the wick on the inner side of the protective net cover. By the adoption of the structure, after innovation and improvement are carried out on the technical scheme, firstly, the accelerant is made not to make direct contact with fuel in the lamp wick, in the using process, the accelerant provides heat, then the fuel in the lamp wick is gasified, meanwhile, gasified gas is provided for the accelerant, the accelerant can be combusted inside and outside, and therefore the combustion utilization rate of the hand warming stove is higher.

Description

Technical Field

[0001] This utility model belongs to the field of hand warmer technology, and specifically relates to a vertical high-efficiency combustion hand warmer. Background Technology

[0002] Hand warmers, this ancient and comforting heating tool, have been indispensable companions to people in the cold winter since ancient times. They not only serve the practical function of warding off the cold, but also embody profound cultural connotations and a sense of life's pleasures, making them a small but essential element of winter warmth and tranquility. Hand warmers have a wide range of applications, making them ideal for home offices, study / reading, outdoor travel, and leisure gatherings. In a cold studio, they can provide creators with lasting warmth and inspiration; in a winter library, they are the most comforting companion for readers; and during outdoor adventures, portable hand warmers are indispensable energy replenishment stations.

[0003] Currently, traditional hand warmers are used by adding cotton and kerosene into the stove, then covering the opening with an insulating mesh, and finally adding a catalyst. The kerosene is drawn into the stove by the cotton and burned on the front of the catalyst, while the back of the catalyst cannot burn, resulting in low combustion efficiency. Furthermore, adding fuel requires extinguishing the catalyst and removing it, which is inconvenient. Secondly, the catalyst is essentially exposed and becomes very fragile after use, easily damaged by accident. Thirdly, traditional hand warmers cannot adjust the temperature according to the ambient temperature; when the ambient temperature is high, the stove becomes too hot, wasting fuel, and when the ambient temperature is low, the stove becomes too cold to provide warmth. Stopping the hand warmer is also difficult; one can either leave it burning unattended or completely seal it to extinguish it due to lack of oxygen. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a vertical high-efficiency combustion hand warmer to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A vertical, high-efficiency combustion hand warmer includes an upper shell, a lower shell, a bottom cover, a wick, a cotton ball, a middle shell, a spring, a catalyst, and a protective mesh cover. The protective mesh cover is installed inside the middle shell via an installation structure. The cotton ball is inserted into the inner side of the lower end of the lower shell. One end of the wick is wrapped inside the cotton ball, and the upper end of the wick penetrates the center of the installation structure. The spring is sleeved on the outer side of the wick. The catalyst is inserted into the inner side of the protective mesh cover, forming a gap with the wick. The lower end of the protective mesh cover is installed to the middle shell via the installation structure. The lower end of the upper shell and the outer side of the upper end of the middle shell are threaded together. The upper end of the bottom cover and the inner side of the lower end of the lower shell are threaded together. The upper shell wall has vent holes.

[0007] The mounting structure includes a core, a through hole, and a third threaded groove. The through hole is located on the opposite side of the middle shell and the lower shell. The third threaded groove is located on the inner side of the lower end of the protective mesh cover. The upper end of the core penetrates the through hole of the middle shell and the lower shell and is installed in the third threaded groove of the protective mesh cover.

[0008] As a preferred technical solution, the same temperature regulating sleeve is provided on the outer side of the upper shell and the lower shell, and the bottom cover and the lower shell have the same diameter as the middle shell and the upper shell.

[0009] As a preferred technical solution, a first internal thread groove is provided on the inner side of the lower end of the upper housing, and the upper housing is installed through the first internal thread groove and the outer thread of the upper end of the middle housing.

[0010] As a preferred technical solution, a second internal thread groove is provided on the inner side of the lower end of the lower housing, and the lower housing is installed through the second internal thread groove and the outer thread of the upper end of the bottom cover.

[0011] As a preferred technical solution, a sealing ring is fitted on the outer side of the upper end of the bottom cover, and the sealing ring is located between the bottom cover and the lower shell.

[0012] As a preferred technical solution, the mounting structure includes a through hole, an external thread, and an internal thread. The through hole is located at the center of the middle shell, the internal thread is located inside the through hole, and the external thread is located outside the protective mesh cover. The protective mesh cover is installed through the external thread and the internal thread at the through hole of the middle shell.

[0013] In summary, the present invention has the following main advantages:

[0014] This innovative and improved technical solution firstly prevents direct contact between the catalyst and the fuel wick. During use, the catalyst provides heat to vaporize the fuel inside the wick, while simultaneously supplying the vaporized gas to the catalyst, allowing combustion both inside and outside the catalyst, thus increasing the combustion efficiency of the hand warmer. Secondly, the addition of a bottom cover eliminates the need to remove the catalyst while adding fuel, enabling refueling during use. The design also incorporates a temperature regulating sleeve; sliding this sleeve adjusts the number of vents in the upper shell, altering the oxygen intake of the combustion chamber and regulating the furnace temperature. When the temperature regulating sleeve is adjusted to the top of the upper shell, reducing the number of vents to zero, the furnace can be extinguished. Furthermore, the improved design places the catalyst vertically within a protective mesh cover, unlike traditional hand warmers which are horizontally positioned, resulting in a more novel appearance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is the utility model Figure 2 Enlarged view at point B in the middle;

[0019] Figure 5 This is a schematic diagram of another type of connection between the middle shell and the protective mesh cover of this utility model.

[0020] Reference numerals: 1. Upper shell; 2. Temperature regulating sleeve; 3. Lower shell; 4. Bottom cover; 5. Vent; 6. Cotton ball; 7. Lamp wick; 8. Filler wick; 9. Middle shell; 11. Spring; 12. Catalyst; 13. Protective mesh cover; 14. Through hole; 15. First internal thread groove; 16. Second internal thread groove; 17. Sealing ring; 18. Third thread groove; 19. External thread; 20. Internal thread. Detailed Implementation

[0021] Example 1

[0022] refer to Figures 1 to 4This embodiment describes a vertical high-efficiency combustion hand warmer, comprising an upper shell 1, a lower shell 3, a bottom cover 4, a wick 7, a cotton ball 6, a middle shell 9, a spring 11, a catalyst 12, and a protective mesh cover 13. The protective mesh cover 13 is installed inside the middle shell 9 via an installation structure. The cotton ball 6 is inserted into the inner side of the lower end of the lower shell 3. One end of the wick 7 is wrapped inside the cotton ball 6, and the upper end of the wick 7 penetrates the center of the installation structure. The spring 11 is sleeved on the outer side of the wick 7. The catalyst 12 is inserted into the inner side of the protective mesh cover 13, forming a gap with the wick 7. The lower end of the protective mesh cover 13 is installed to the middle shell 9 via the installation structure. The lower end of the upper shell 1 and the outer side of the upper end of the middle shell 9 are threaded together. The upper end of the bottom cover 4 is threaded to the inner side of the lower end of the lower shell 3. Air holes 5 are provided on the shell wall of the upper shell 1. The installation structure includes a filler core 8 and a through hole 1. 4 and the third threaded groove 18, the through hole 14 are opened on the opposite side of the middle shell 9 and the lower shell 3, the third threaded groove 18 is opened on the lower inner side of the protective mesh cover 13, the upper end of the supplement core 8 is installed through the through hole 14 of the middle shell 9 and the lower shell 3 and the third threaded groove 18 of the protective mesh cover 13; firstly, the catalyst 12 and the fuel of the lamp wick 7 are not in direct contact. During use, the catalyst 12 provides heat and then vaporizes the fuel in the lamp wick 7. At the same time, the vaporized gas is provided to the catalyst 12, so that the catalyst 12 can be burned inside and outside, and the combustion utilization rate is higher; the catalyst 12 is squeezed and installed in the protective mesh cover 13 and fits against the inner wall of the protective mesh cover 13, while the upper end of the lamp wick 7 is fitted with a spring 11, and the lower end of the spring 11 is inserted into the supplement core 8 and the upper end is inserted into the protective mesh cover 13. Therefore, the entire lamp wick 7 does not contact the catalyst 12;

[0023] Furthermore, a carrying strap can be added to the outside of the bottom cover 4 in subsequent designs, making it more convenient to carry and use. The catalyst 12, measuring 31*60mm, is an existing technology product and is currently available for purchase on certain platforms. In this design, the catalyst 12 is placed vertically, and the wick 7 is wrapped by a spring 11 or other metal mesh. The catalyst 12 does not directly contact the fuel, and when not in use, it is not in contact with the fuel, meaning it will not be absorbed or soaked by the fuel, thus extending its lifespan. When in use, because it does not directly contact the fuel, the gap between the catalyst 12 and the wick 7 or fuel section, both internally and externally, can burn, thus improving combustion efficiency and saving energy. Traditional hand warmers, hand warmers, and other liquid fuel heating devices use a top-filling method, requiring fuel to be added when the catalyst 12 is extinguished. However, this hand warmer allows fuel to be added without extinguishing the catalyst 12 or in a non-open flame state. The wick 7 is specifically made of glass fiber, making it more durable and with a relatively longer lifespan.

[0024] refer to Figure 1The same temperature regulating sleeve 2 is fitted on the outer sides of the upper shell 1 and the lower shell 3. The bottom cover 4 and the lower shell 3 have the same diameter as the middle shell 9 and the upper shell 1. By pushing the temperature regulating sleeve 2 from the lower shell 3 toward the upper shell 1 through the outer side of the upper shell 1 and the lower shell 3, the corresponding air hole 5 is covered, which can facilitate the adjustment of the temperature. When the temperature regulating sleeve 2 is pushed up, it covers the air hole 5 of the entire upper shell 1, which can isolate the air and extinguish the hand warmer. The temperature regulating sleeve 2 has tension force. By the tension force, it is fitted on the outer side of the upper shell 1 and the lower shell 3. The friction force generated by the tension force gives the temperature regulating sleeve 2 a certain resistance when it moves on the outer side of the upper shell 1 and the lower shell 3, preventing it from falling off. The temperature regulating sleeve 2 can be built into the upper shell 1 in the future. The size of the air hole 5 can be changed by rotating it, thereby changing the temperature of the furnace body. The fuel filling port can be installed at any position of the lower shell 3 in the future.

[0025] refer to Figure 2 The lower end of the upper housing 1 is provided with a first internal thread groove 15. The upper housing 1 is threaded to the upper end of the middle housing 9 through the first internal thread groove 15. The lower end of the upper housing 1 and the upper end of the middle housing 9 can be threaded together through the first internal thread groove 15 on the upper housing 1.

[0026] refer to Figure 2 The lower housing 3 has a second internal thread groove 16 on the inner side of its lower end. The lower housing 3 is threaded to the outer side of the upper end of the bottom cover 4 through the second internal thread groove 16. The lower housing 3 and the upper end of the bottom cover 4 can be threaded together through the second internal thread groove 16 on the inner side of the lower end of the lower housing 3.

[0027] refer to Figure 3 A sealing ring 17 is fitted on the outer side of the upper end of the bottom cover 4. The sealing ring 17 is located between the bottom cover 4 and the lower housing 3. After the sealing ring 17 is threaded between the bottom cover 4 and the lower housing 3, it is squeezed through the sealing ring 17 fitted on the bottom cover 4, thereby sealing the connection gap and preventing fuel leakage.

[0028] Example 2

[0029] refer to Figure 5 The mounting structure includes a through hole 14, an external thread 19, and an internal thread 20. The through hole 14 is located at the center of the middle housing 9, the internal thread 20 is located inside the through hole 14, and the external thread 19 is located outside the protective mesh cover 13. The protective mesh cover 13 is installed through the external thread 19 and the internal thread 20 at the through hole 14 of the middle housing 9. The middle housing 9 and the lower housing 3 can be designed as a single piece, with only one through hole 14 with an internal thread 20 between them. This allows the lamp wick 7 to extend and be installed with the protective mesh cover 13 with an external thread 19. This process can eliminate unnecessary assembly steps and reduce complexity, as well as lower production costs.

[0030] Operating principle and advantages: During assembly, the upper end of the wick 7 is led out through the central hole of the filler 8 at the middle housing 9. Then, the spring 11 is inserted above the wick 7, and the protective mesh cover 13 containing the catalyst 12 is inserted into the upper end of the spring 11 and connected to the filler 8. Then, the cotton ball 6 is wrapped around the lower end of the wick 7 and stuffed into the lower housing 3. At the same time, fuel is added into the lower housing 3 and the bottom cover 4 is tightened before ignition.

[0031] During use, since the catalyst 12 and the wick 7 are not in direct contact with the fuel, the catalyst 12 provides heat and then vaporizes the fuel inside the wick 7. At the same time, the vaporized gas is provided to the catalyst 12, so that the catalyst 12 can burn both inside and out. After the temperature regulating sleeve 2 is pushed up from the lower shell 3 toward the upper shell 1, it covers the corresponding air hole 5, which makes it easy to adjust the temperature. After the temperature regulating sleeve 2 is pushed up, it covers the air hole 5 of the entire upper shell 1, which can isolate the air and extinguish the hand warmer.

Claims

1. A vertically mounted, high-efficiency combustion hand warmer, characterized in that, The device includes an upper housing (1), a lower housing (3), a bottom cover (4), a wick (7), a cotton ball (6), a middle housing (9), a spring (11), a catalyst (12), and a protective mesh cover (13). The protective mesh cover (13) is installed inside the middle housing (9) through an installation structure. The cotton ball (6) is stuffed inside the lower end of the lower housing (3). One end of the wick (7) is wrapped inside the cotton ball (6). The upper end of the wick (7) passes through the center of the installation structure. The spring (11) is sleeved on the outside of the lamp core (7), the catalyst (12) is inserted into the inner side of the protective mesh cover (13) and forms a gap between it and the lamp core (7), the lower end of the protective mesh cover (13) is installed with the middle shell (9) through the installation structure, the lower end of the upper shell (1) and the upper end of the middle shell (9) are threadedly installed, the upper end of the bottom cover (4) and the lower end of the lower shell (3) are threadedly connected, and the upper shell (1) has an air hole (5) on its shell wall. The installation structure includes a core (8), a through hole (14), and a third threaded groove (18). The through hole (14) is located on the opposite side of the middle shell (9) and the lower shell (3). The third threaded groove (18) is located on the inner side of the lower end of the protective mesh cover (13). The upper end of the core (8) is installed through the through hole (14) of the middle shell (9) and the lower shell (3) and the third threaded groove (18) of the protective mesh cover (13).

2. The vertical high-efficiency combustion hand warmer according to claim 1, characterized in that: The same temperature regulating sleeve (2) is fitted on the outer side of the upper shell (1) and the lower shell (3), and the bottom cover (4) and the lower shell (3) have the same diameter as the middle shell (9) and the upper shell (1).

3. The vertical high-efficiency combustion hand warmer according to claim 1, characterized in that: The lower inner side of the upper housing (1) is provided with a first internal thread groove (15), and the upper housing (1) is installed through the first internal thread groove (15) and the upper outer thread of the middle housing (9).

4. A vertical high-efficiency combustion hand warmer according to claim 1, characterized in that: The lower housing (3) has a second internal thread groove (16) on the inner side of its lower end. The lower housing (3) is installed by the second internal thread groove (16) and the upper outer thread of the bottom cover (4).

5. A vertical high-efficiency combustion hand warmer according to claim 1, characterized in that: A sealing ring (17) is fitted on the outer side of the upper end of the bottom cover (4), and the sealing ring (17) is located between the bottom cover (4) and the lower shell (3).

6. A vertical high-efficiency combustion hand warmer according to claim 1, characterized in that: The mounting structure includes a through hole (14), an external thread (19), and an internal thread (20). The through hole (14) is located at the center of the middle housing (9). The internal thread (20) is located inside the through hole (14). The external thread (19) is located outside the protective mesh cover (13). The protective mesh cover (13) is installed through the external thread (19) and the internal thread (20) at the through hole (14) of the middle housing (9).

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