Gas heater capable of heating quickly

Abstract

The utility model relates to the technical field of heaters, in particular to a fast-heating gas heater which comprises a main body, a gas conveying device arranged in the main body, a combustion cylinder arranged at the top of the main body, a first venturi tube and a second venturi tube arranged in the combustion cylinder, the gas inlet end of the first Venturi tube and the gas inlet end of the second Venturi tube are arranged at the bottom of the combustion cylinder and communicated with the gas conveying device, the gas outlet end of the first Venturi tube extends to the upper portion of the combustion cylinder, and the gas outlet end of the second Venturi tube extends to the middle of the combustion cylinder. Gas can enter the combustion cylinder through the first Venturi tube and the second Venturi tube, so that the upper portion and the middle portion of the combustion cylinder are rapidly filled with the gas, the efficiency of covering the interior of the combustion cylinder by the gas is improved, finally, uniform radiation combustion is achieved by igniting the gas, and the warmer is rapid in heating, good in warming effect and high in practicability. And better use experience can be provided for the user.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to a gas heater that heats up quickly. Background Technology

[0002] Heaters are mainly used for heating in well-ventilated indoor or outdoor spaces, and are mostly used for patio parties and outdoor camping.

[0003] For example, patent CN221923481 U discloses a double-layer combustion mesh burner, including a venturi tube, a cylindrical combustion cylinder, a top cover, a bottom cover, an inner combustion mesh, and an outer combustion mesh. The cylindrical combustion cylinder includes a main annular protrusion and a secondary annular protrusion located at the top and bottom. The space between the main annular protrusion, the secondary annular protrusion, and the secondary annular protrusion forms a gas distribution chamber and is provided with an outlet. The bottom cover has a cylindrical air inlet at its center. The top cover and the bottom cover are respectively embedded in the upper and lower ends of the cylindrical combustion cylinder. The inner combustion mesh is fitted onto the cylindrical combustion cylinder and covers the gas distribution chamber. The outer combustion mesh and the inner combustion mesh are fitted together and fixed. The cylindrical air inlet is inserted into the lower end of the venturi tube. There is a gap between the upper end of the venturi tube and the top cover. The top cover allows the gas and air mixture to move downwards.

[0004] The problem with the above technology is that when in use, the nozzle injects gas into the venturi tube, and the gas enters the cylindrical combustion chamber through the upper end of the venturi tube. The gas will pass through the gap between the upper end of the venturi tube and the top cover and move downwards, and then be ignited by the ignition device. Since it takes a certain amount of time for the gas to fill the entire cylindrical combustion chamber, it also takes a certain amount of time to heat the entire cylindrical combustion chamber evenly. Therefore, it takes a certain amount of time for the existing heater to reach the temperature expected by the user.

[0005] Therefore, a gas heater that heats up quickly is proposed to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a gas heater that heats up quickly, can radiate heat evenly, heats up quickly, has a good heating effect, and can further improve the user experience.

[0007] The technical solution adopted by this utility model to solve the problem is: a gas heater that heats up quickly, including a main body, a gas supply device inside the main body, a combustion cylinder at the top of the main body, a first Venturi tube and a second Venturi tube inside the combustion cylinder, the air inlet ends of the first Venturi tube and the second Venturi tube are located at the bottom of the combustion cylinder and communicate with the gas supply device, the air outlet end of the first Venturi tube extends to the upper part of the combustion cylinder, and the air outlet end of the second Venturi tube extends to the middle part of the combustion cylinder.

[0008] As a further improvement to the above technical solution, a bottom cover is fixedly provided at the bottom of the combustion cylinder, and the first Venturi tube and the second Venturi tube are fixedly provided on the bottom cover, which is fixedly provided on the top of the main body.

[0009] As a further improvement to the above technical solution, the combustion chamber includes an upper chamber and a lower chamber. The lower chamber is disposed on top of the bottom cover, and the upper chamber is disposed on top of the lower chamber. A top cover is provided on the top of the upper chamber. A baffle is provided between the upper chamber and the lower chamber. An upper combustion chamber is formed between the top cover, the upper chamber, and the baffle. A lower combustion chamber is formed between the baffle, the lower chamber, and the bottom cover. An opening is provided on the baffle. The outlet end of the first venturi tube passes through the opening and is located in the upper combustion chamber. The outlet end of the second venturi tube is located in the lower combustion chamber.

[0010] As a further improvement to the above technical solution, a flow divider cover is provided at the bottom of the top cover, and a first flow divider hole communicating with the upper combustion chamber is provided on the flow divider cover. A flow divider ring is provided at the bottom of the baffle, and a second flow divider hole communicating with the lower combustion chamber is provided on the flow divider ring.

[0011] As a further improvement to the above technical solution, the bottom cover is provided with a first step, the bottom of the lower cylinder overlaps the first step, the baffle is provided with a first flange, the first flange overlaps the top of the lower cylinder, the baffle is provided with a second step, the bottom of the upper cylinder overlaps the second step, the top cover is provided with a second flange, the second flange overlaps the top of the upper cylinder.

[0012] As a further improvement to the above technical solution, both the upper and lower cylinders are provided with outwardly protruding support positions on their side ends, and also include a combustion mesh, which is sleeved on the upper and lower cylinders, and the inner end of the combustion mesh is fixedly connected to the support position.

[0013] As a further improvement to the above technical solution, the gas delivery device includes an air inlet pipe and two nozzles, the air inlet pipe facing the bottom of the main body, and the two nozzles facing the bottom of the first Venturi tube and the second Venturi tube respectively.

[0014] As a further improvement to the above technical solution, a rotary switch and an ignition device are also included. The ignition device is located on the outside of the combustion chamber, and the rotary switch is used to control the air intake of the ignition device and the gas supply device.

[0015] As a further improvement to the above technical solution, the ignition device includes a thermocouple and an ignition needle, and the gas delivery device includes a combustion head connected to the air intake pipe, wherein the combustion head is disposed between the thermocouple and the ignition needle.

[0016] As a further improvement to the above technical solution, the ignition device includes a micro switch and a cam that is rotatably connected to a rotary switch. The micro switch is electrically connected to an ignition needle. The gas delivery device includes a solenoid valve that communicates with a combustion head. A valve stem is elastically connected to the end of the solenoid valve. A first abutment and a second abutment are respectively provided at the upper and lower ends of the cam. A torsion spring is provided between the valve stem and the first abutment. The second abutment is located beside the micro switch.

[0017] The beneficial effects of this utility model are as follows: When in use, the gas supply device delivers gas to the first and second Venturi tubes. The gas can enter the combustion chamber through the first and second Venturi tubes, allowing the gas to quickly fill the upper and middle parts of the combustion chamber, thereby accelerating the efficiency of gas covering the inside of the combustion chamber. Finally, uniform radiant combustion is achieved by igniting the gas. The heater of this application heats up quickly and has a good heating effect, providing users with a better user experience. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a structural diagram of the heater of this utility model;

[0020] Figure 2 This is an exploded view of the heater of this utility model;

[0021] Figure 3 This is a top view of the heater of this utility model;

[0022] Figure 4 for Figure 3 A cross-sectional view of section AA;

[0023] Figure 5 for Figure 4 A magnified view of part A;

[0024] Figure 6 for Figure 4 A magnified view of part B;

[0025] Figure 7 for Figure 4 A magnified view of part C;

[0026] Figure 8 This is a top-view structural diagram of the gas delivery device and ignition device of this utility model;

[0027] Figure 9 This is a structural diagram of the gas delivery device and ignition device of this utility model from an upward perspective.

[0028] In the diagram: 1-Main body, 2-Gas delivery device, 21-Inlet pipe, 22-Nozzle, 23-Burn head, 24-Solenoid valve, 241-Valve stem, 3-Burn cylinder, 31-Bottom cover, 311-First step, 32-Upper cylinder, 33-Lower cylinder, 34-Top cover, 341-Diverter cover, 342-First diverter hole, 343-Second flange, 35-Baffle, 351-Opening, 352-Diverter ring, 353-First step Two-way flow port, 354-first flange, 355-second step, 36-support position, 41-first venturi tube, 42-second venturi tube, 51-upper combustion chamber, 52-lower combustion chamber, 6-combustion grid, 7-rotary switch, 8-ignition device, 81-thermocouple, 82-ignition needle, 83-micro switch, 84-cam, 841-first abutment part, 842-second abutment part, 85-torsion spring. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for distinguishing technical features only and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0032] Reference Figures 1 to 9A gas heater that heats up quickly includes a main body 1, a gas supply device 2 inside the main body 1, a combustion cylinder 3 at the top of the main body 1, a first venturi tube 41 and a second venturi tube 42 inside the combustion cylinder 3, the air inlet ends of the first venturi tube 41 and the second venturi tube 42 are located at the bottom of the combustion cylinder 3 and are connected to the gas supply device 2, the air outlet end of the first venturi tube 41 extends to the upper part of the combustion cylinder 3, and the air outlet end of the second venturi tube 42 extends to the middle part of the combustion cylinder 3.

[0033] The side end of the combustion cylinder 3 has several combustion holes evenly distributed;

[0034] In use, the gas supply device 2 delivers gas to the first Venturi tube 41 and the second Venturi tube 42. The gas can enter the combustion cylinder 3 through the first Venturi tube 41 and the second Venturi tube 42, so that the gas quickly fills the upper and middle parts of the combustion cylinder 3, thereby accelerating the efficiency of gas covering the inside of the combustion cylinder 3. Finally, the gas is ignited to achieve uniform radiant combustion. The heater of this application heats up quickly and has a good heating effect, which can provide users with a better user experience.

[0035] In a preferred embodiment, in order to facilitate the installation of the first Venturi tube 41 and the second Venturi tube 42, a bottom cover 31 is fixedly provided at the bottom of the combustion cylinder 3, the first Venturi tube 41 and the second Venturi tube 42 are fixedly provided on the bottom cover 31, and the bottom cover 31 is fixedly provided at the top of the main body 1.

[0036] In a preferred embodiment, the combustion chamber 3 includes an upper chamber 32 and a lower chamber 33. The lower chamber 33 is disposed on top of the bottom cover 31, and the upper chamber 32 is disposed on top of the lower chamber 33. A top cover 34 is provided on the top of the upper chamber 32. A baffle 35 is provided between the upper chamber 32 and the lower chamber 33. An upper combustion chamber 51 is formed between the top cover 34, the upper chamber 32 and the baffle 35, and a lower combustion chamber 52 is formed between the baffle 35, the lower chamber 33 and the bottom cover 31. An opening 351 is provided on the baffle 35. The outlet end of the first venturi tube 41 passes through the opening 351 and is located in the upper combustion chamber 51. The outlet end of the second venturi tube 42 is located in the lower combustion chamber 52.

[0037] The gas enters the upper combustion chamber 51 through the first venturi tube 41 and the lower combustion chamber 52 through the second venturi tube 42. By igniting the gas in the upper combustion chamber 51 and the lower combustion chamber 52, uniform radiant combustion is achieved, which quickly heats the combustion cylinder 3.

[0038] In a preferred embodiment, a flow divider cover 341 is provided at the bottom of the top cover 34, and a first flow divider hole 342 communicating with the upper combustion chamber 51 is provided on the flow divider cover 341. A flow divider ring 352 is provided at the bottom of the baffle 35, and a second flow divider hole 353 communicating with the lower combustion chamber 52 is provided on the flow divider ring 352.

[0039] Through the first diversion hole 342 and the second diversion hole 353, the gas can be quickly and evenly distributed in the upper combustion chamber 51 and the lower combustion chamber 52.

[0040] In a preferred embodiment, to facilitate the installation of the combustion cylinder 3, a first step 311 is provided on the bottom cover 31, the bottom of the lower cylinder 33 overlaps on the first step 311, a first flange 354 is provided on the baffle 35, the first flange 354 overlaps on the top of the lower cylinder 33, a second step 355 is provided on the baffle 35, the bottom of the upper cylinder 32 overlaps on the second step 355, and a second flange 343 is provided on the top cover 34, the second flange 343 overlaps on the top of the upper cylinder 32.

[0041] In a preferred embodiment, both the upper cylinder 32 and the lower cylinder 33 are provided with outwardly protruding support positions 36 on their side ends, and also include a combustion mesh 6, which is sleeved on the upper cylinder 32 and the lower cylinder 33, and the inner end of the combustion mesh 6 is fixedly connected to the support position 36.

[0042] The combustion grid 6 is welded to the support position 36, and the cross-section of the support position 36 is arc-shaped, trapezoidal, or triangular.

[0043] In a preferred embodiment, the gas delivery device 2 includes an air inlet pipe 21 and two nozzles 22. The air inlet pipe 21 faces the bottom of the main body 1, and the two nozzles 22 face the bottom of the first venturi tube 41 and the second venturi tube 42, respectively.

[0044] The gas can enter the first venturi tube 41 and the second venturi tube 42 through the nozzle 22 respectively.

[0045] In a preferred embodiment, a rotary switch 7 and an ignition device 8 are also included. The ignition device 8 is disposed on the outside of the combustion cylinder 3, and the rotary switch 7 is used to control the air intake of the ignition device 8 and the gas supply device 2.

[0046] In a preferred embodiment, the ignition device 8 includes a thermocouple 81 and an ignition needle 82, and the gas delivery device 2 includes a burner head 23 connected to the air inlet pipe 21, with the burner head 23 disposed between the thermocouple 81 and the ignition needle 82.

[0047] During ignition, the gas can enter the burner head 23 through the intake pipe 21, and ignite the burner head 23 through the thermocouple 81 and the ignition needle 82, thereby igniting the gas in the combustion chamber 3.

[0048] In a preferred embodiment, the ignition device 8 includes a micro switch 83 and a cam 84 rotatably connected to the rotary switch 7. The micro switch 83 is electrically connected to the ignition needle 82. The gas delivery device 2 includes a solenoid valve 24 connected to the burner head 23. A valve stem 241 is elastically connected to the end of the solenoid valve 24. A first abutment portion 841 and a second abutment portion 842 are respectively provided at the upper and lower ends of the cam 84. A torsion spring 85 is provided between the valve stem 241 and the first abutment portion 841. The second abutment portion 842 is located beside the micro switch 83.

[0049] In use, by turning the knob switch 7, the cam 84 is driven to rotate, causing the first abutment part 841 to rotate and abut against the valve stem 842, thereby opening the solenoid valve 24 and controlling the amount of gas passing through the burner head 23. At the same time, the second abutment part 842 rotates and abuts against the micro switch 83, thereby opening the micro switch 83, which in turn opens the ignition needle 82 to ignite the burner head 23.

[0050] In a preferred embodiment, a flameout protector is electrically connected between the solenoid valve 24 and the thermocouple 81. When the flame suddenly goes out, the electromotive force of the thermocouple 81 changes, causing the circuit to break, thereby prompting the flameout protector to control the solenoid valve 24 to open and cut off the gas supply.

[0051] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A gas heater with fast heating, characterized in that: it comprises a main body (1) in which a gas feeding device (2) is arranged, and a combustion cylinder (3) is arranged on the top of the main body (1), and a first Venturi tube (41) and a second Venturi tube (42) are arranged in the combustion cylinder (3), the gas inlet ends of the first Venturi tube (41) and the second Venturi tube (42) are arranged at the bottom of the combustion cylinder (3) and communicate with the gas feeding device (2), the gas outlet end of the first Venturi tube (41) extends to the upper part of the combustion cylinder (3), and the gas outlet end of the second Venturi tube (42) extends to the middle part of the combustion cylinder (3).

2. The gas heater with fast heating according to claim 1, characterized in that: a bottom cover (31) is fixedly arranged at the bottom of the combustion cylinder (3), the first Venturi tube (41) and the second Venturi tube (42) are fixedly arranged on the bottom cover (31), and the bottom cover (31) is fixedly arranged on the top of the main body (1).

3. The gas heater with fast heating according to claim 2, characterized in that: the combustion cylinder (3) comprises an upper cylinder (32) and a lower cylinder (33), the lower cylinder (33) is arranged on the top of the bottom cover (31), the upper cylinder (32) is arranged on the top of the lower cylinder (33), a top cover (34) is arranged on the top of the upper cylinder (32), a baffle (35) is arranged between the upper cylinder (32) and the lower cylinder (33), an upper combustion chamber (51) is formed between the top cover (34), the upper cylinder (32) and the baffle (35), and a lower combustion chamber (52) is formed between the baffle (35), the lower cylinder (33) and the bottom cover (31); an opening (351) is arranged on the baffle (35), the gas outlet end of the first Venturi tube (41) passes through the opening (351) and is located in the upper combustion chamber (51), and the gas outlet end of the second Venturi tube (42) is located in the lower combustion chamber (52).

4. The gas heater with fast heating according to claim 3, characterized in that: a shunt cover (341) is arranged on the bottom of the top cover (34), the shunt cover (341) is provided with a first shunt hole (342) communicating with the upper combustion chamber (51), the bottom of the baffle (35) is provided with a shunt ring (352), and the shunt ring (352) is provided with a second shunt hole (353) communicating with the lower combustion chamber (52).

5. The gas heater with fast heating according to claim 3, characterized in that: a first step (311) is arranged on the bottom cover (31), the bottom of the lower cylinder (33) is overlapped on the first step (311), a first flange (354) is arranged on the baffle (35), the first flange (354) is overlapped on the top of the lower cylinder (33), a second step (355) is arranged on the baffle (35), the bottom of the upper cylinder (32) is overlapped on the second step (355), and a second flange (343) is arranged on the top cover (34), the second flange (343) is overlapped on the top of the upper cylinder (32). ​ ​ ​ ​ ​ 6. The gas heater according to claim 5, characterized in that: The side end of the upper cylinder (32) and the lower cylinder (33) is provided with an outwardly protruding support position (36), and further comprising a combustion grid (6), the combustion grid (6) is sleeved on the upper cylinder (32) and the lower cylinder (33), and the inner side end of the combustion grid (6) is fixedly connected with the support position (36).

7. The gas heater according to claim 1, characterized in that: The gas feeding device (2) comprises an air inlet pipe (21) and two nozzles (22), the air inlet pipe (21) is directed to the bottom of the main body (1), and the two nozzles (22) are respectively directed to the bottom of the first venturi (41) and the second venturi (42).

8. The gas heater according to claim 7, characterized in that: Further comprising a knob switch (7) and an ignition device (8), the ignition device (8) is arranged on the outside of the combustion cylinder (3), and the knob switch (7) is used to control the ignition device (8) and the air inlet amount of the gas feeding device (2).

9. The gas heater according to claim 8, characterized in that: The ignition device (8) comprises a thermocouple (81) and an ignition needle (82), the gas feeding device (2) comprises a combustion head (23) in communication with the air inlet pipe (21), and the combustion head (23) is arranged between the thermocouple (81) and the ignition needle (82).

10. The gas heater according to claim 9, characterized in that: The ignition device (8) comprises a micro switch (83) and a cam (84) rotationally connected with the knob switch (7), the micro switch (83) is electrically connected with the ignition needle (82), the gas feeding device (2) comprises an electromagnetic valve (24) in communication with the combustion head (23), one end of the electromagnetic valve (24) is elastically connected with a valve rod (241), the upper and lower ends of the cam (84) are respectively provided with a first abutting portion (841) and a second abutting portion (842), a torsion spring (85) is arranged between the valve rod (241) and the first abutting portion (841), and the second abutting portion (842) is located beside the micro switch (83).

Images