Table type warmer

Abstract

The utility model relates to the technical field of heaters, in particular to a table type heater which comprises a base assembly, an ignition system and a combustor, the base assembly comprises a base and a surrounding plate, the surrounding plate is movably connected with the base, the surrounding plate and the base define a containing cavity, and a valve control fixing plate is arranged in the containing cavity; the ignition system comprises a valve control assembly and two gas connectors. The valve control assembly is connected with the valve control fixing plate. The valve control assembly is provided with two gas inlet pipelines and a gas outlet pipeline, the two gas inlet pipelines are arranged in parallel and communicate with the gas outlet pipeline, and each gas connector is connected with one gas inlet pipeline; and the combustor is communicated with the gas outlet pipeline through a guide pipeline. The utility model provides a table type warmer, and aims to improve the heat peak value of the table type warmer.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a desktop heater. Background Art

[0002] The heater provides heat by burning combustible media such as natural gas and liquefied gas.

[0003] The heater includes a gas joint, a control valve connected to the gas joint, a high-fire component electrically connected to the control valve, and a burner connected to the control valve, and an open flame is formed in the burner to realize heating.

[0004] In the related art, the heater is only equipped with one gas connection. Therefore, when used outdoors, the peak heat generated by the heater is mostly at 10,000 BTU / HR (ie, 2,930 W), causing users to feel that the heat is insufficient and the temperature is not high during the experience. Utility Model Content

[0005] The main purpose of the utility model is to provide a desktop heater, aiming to increase the peak value of heat maintained by the desktop heater.

[0006] To achieve the above object, the desktop heater comprises:

[0007] A base assembly, the base assembly comprising a base and a surrounding plate, the surrounding plate being movably connected to the base, the surrounding plate and the base forming a receiving cavity, the receiving cavity having a valve-controlled fixing plate built therein;

[0008] An ignition system, the ignition system comprising a valve control assembly and two gas connectors, the valve control assembly being connected to the valve control fixing plate; the valve control assembly being provided with two air inlet pipelines and one air outlet pipeline, the two air inlet pipelines being arranged in parallel and both being connected to the air outlet pipeline, and each of the gas connectors being connected to one of the air inlet pipelines; and

[0009] A burner is connected to the gas outlet pipeline through a guide pipeline.

[0010] In an embodiment of the present invention, each of the gas connectors is rotatably connected to an air intake pipeline.

[0011] In one embodiment of the utility model, the ignition system also includes an ignition assembly, which includes a control knob, a pilot fire nozzle, an electrode rod and a thermocouple. The air outlet pipeline is provided with an air outlet branch, and the air outlet branch is connected to the air outlet pipeline; the control knob is arranged on the enclosure and electrically connected to the valve control assembly, and the pilot fire nozzle, the electrode rod and the thermocouple are all fixedly arranged in the burner; the pilot fire nozzle pipeline is connected to the air outlet branch, and the electrode rod is arranged close to the pilot fire nozzle; the electrode rod and the thermocouple are electrically connected to the valve control assembly.

[0012] In one embodiment of the utility model, the primary fire nozzle is provided with an oxygen-deficient protective gas port, and the oxygen-deficient protective gas port is arranged on a side of the primary fire nozzle facing away from the burner.

[0013] In an embodiment of the present invention, the ignition system further includes a tilt switch, which is fixedly disposed in the accommodating chamber and electrically connected to the valve control assembly.

[0014] In one embodiment of the utility model, the burner includes a combustion burner head, a protective cover and a protective pipeline, the combustion burner head is connected to the guide pipeline, the combustion burner head is arranged in the protective cover, the two ends of the protective pipeline are connected to the enclosure and the protective cover, and the guide pipeline is located in the protective pipeline; the mother fire nozzle, the electrode rod and the thermocouple are all arranged in the end of the protective pipeline close to the combustion burner head.

[0015] In one embodiment of the utility model, the combustion burner head includes a plurality of gas outlet flame holes, each of which is connected to the guide pipeline; the plurality of gas outlet flame holes are evenly distributed along the outer edge of the combustion burner head, and the mother fire nozzle and the electrode rod are arranged toward some of the gas outlet flame holes.

[0016] In one embodiment of the utility model, the burner also includes an infrared cover, which is arranged in the protective outer cover and covers the combustion burner head; the infrared cover is provided with a first air inlet hole and a plurality of second air inlet holes, the first air inlet hole is arranged close to the mother fire nozzle, and the plurality of second air inlet holes are arranged along the height extension direction of the infrared cover.

[0017] In one embodiment of the utility model, the protective outer cover includes a protective net and a reflective cover, the protective net is connected to the end of the protective pipeline away from the base, and the reflective cover is provided on the end of the protective net away from the protective pipeline; the protective net and the reflective cover enclose a protective space, and the infrared cover is located in the protective space.

[0018] In one embodiment of the utility model, the burner is provided with an ignition fixing assembly, the ignition fixing assembly includes a fixing cover and an ignition fixing plate, the fixing cover is arranged at one end of the protection pipeline close to the burner and encloses to form a fixing cavity, the ignition fixing plate is arranged in the fixing cavity, the pilot fire nozzle, the electrode rod and the thermocouple are detachably arranged on the ignition fixing plate;

[0019] And / or, the fixed cover is provided with an air inlet, and the air inlet is connected to the fixed cavity.

[0020] The utility model proposes a desktop heater, which includes a base assembly, an ignition system and a burner. The base assembly includes a base and a surrounding plate, which is movably connected to the base. The surrounding plate and the base are combined to form a receiving cavity. The surrounding plate can be opened to put a gas tank containing combustion gas into the receiving cavity. A fixing plate is arranged in the receiving cavity. The valve control assembly of the ignition system can be fixed on the fixing plate by bolts and other structures. The valve control assembly is provided with two air inlet pipelines and one air outlet pipeline. The two air inlet pipelines are arranged in parallel and are connected to the air outlet pipelines. Each air inlet pipeline can be connected to a gas tank. The gas of the two gas tanks is collected in the burner through a guide pipeline and then ignited and burned through the ignition system. The peak heat generated can reach 15000 BTU / HR (i.e. 4396W) to improve the user's thermal sensation when using the desktop heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A structural schematic diagram of an embodiment of a desktop heater provided by the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of structural explosion;

[0024] Figure 3 for Figure 1 Schematic diagram of structural explosion;

[0025] Figure 4 This is a structural schematic diagram of the ignition assembly provided by the utility model.

[0026] Description of Figure Numbers:

[0027] 10. Base assembly; 101. Base; 102. Enclosure; 103. Valve control fixing plate; 104. Counterweight; 201. Valve control assembly; 202. Gas joint; 203. Air inlet pipeline; 204. Air outlet pipeline; 205. Air outlet branch; 206. Control knob; 207. Mother fire nozzle; 208. Electrode rod; 209. Thermocouple; 20a. Hypoxia protection gas port; 211. Mother fire pipeline; 212. Tilt switch; 30. Burner; 301. Burner head; 32. Protective cover; 303. Protective pipeline; 304. Guide pipeline; 30a. Flame outlet hole; 305. Infrared cover; 30b. First air inlet; 30c. Second air inlet; 321. Protective net; 322. Reflection cover; 306. Fixing cover; 307. Ignition fixing plate; 30d. Air inlet.

[0028] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] See also Figures 1 to 4 , the table heater includes:

[0033] The base 101 assembly 10 includes a base 101 and a surrounding plate 102, the surrounding plate 102 is movably connected to the base 101, the surrounding plate 102 and the base 101 are enclosed to form a receiving cavity, and a valve-controlled fixing plate 103 is built in the receiving cavity;

[0034] The ignition system includes a valve control component 201 and two gas connectors 202. The valve control component 201 is connected to the valve control fixing plate 103. The valve control component 201 is provided with two air inlet pipelines 203 and one air outlet pipeline 204. The two air inlet pipelines 203 are arranged in parallel and are connected to the air outlet pipeline 204. Each gas connector 202 is connected to an air inlet pipeline 203.

[0035] The burner 30 is connected to the gas outlet pipeline 204 through the guide pipeline 304 .

[0036] The utility model provides a desktop heater, which includes a base 101 component 10, an ignition system and a burner 30. The base 101 component 10 includes a base 101 and a panel 102, the panel 102 is movably connected to the base 101, the panel 102 and the base 101 are enclosed to form a receiving cavity, the panel 102 can be opened to put a gas tank containing combustion gas into the receiving cavity, a fixing plate is arranged in the receiving cavity, and the valve control component 201 of the ignition system can be locked on the fixing plate by bolts and other structures. The valve control assembly 201 is fixed on the top, and is provided with two air inlet pipes 203 and one air outlet pipe 204. The two air inlet pipes 203 are arranged in parallel and are connected to the air outlet pipes 204. Each air inlet pipe 203 can be connected to a gas tank. The gas of the two gas tanks is collected in the burner 30 through the guide pipe 304, and then ignited and burned through the ignition system. The peak heat generated can reach 15000 BTU / HR (i.e. 4396W) to enhance the user's thermal sensation when using the desktop heater.

[0037] The base 101 assembly 10 includes a base 101 and a surrounding plate 102, which together form a cylindrical structure. The surrounding plate 102 is movably connected to the base 101 so that the base 101 assembly 10 forms a door structure. Specifically, the surrounding plate 102 can be connected to the base 101 through a hinge structure, and a slide groove adapted to the shape of the surrounding plate 102 can also be provided on the base 101 so that the surrounding plate 102 can be opened to allow a gas-filled device (such as a gas tank or a gas cylinder) containing a combustion medium to be placed in the accommodating chamber. A valve-controlled fixing plate 103 with a sheet metal structure is installed in the accommodating chamber. The valve-controlled fixing plate 103 can fix the valve-controlled assembly 201 used to turn on or off the fire to prevent the wire interface of the valve-controlled assembly 201 from loosening and causing failure. Furthermore, the base 101 is equipped with a counterweight block 104, which is locked to the base 101 by bolts to lower the center of gravity of the desktop heater and improve stability.

[0038] The ignition system is used for ignition control of a desktop heater, which includes a valve control component 201 and two gas connectors 202. The valve control component 201 is composed of a variety of control valves, such as a gas regulating valve (regulator) for controlling the gas flow rate, a safety valve for realizing gas guided flow, and a solenoid valve for controlling the conduction of the safety valve. The solenoid valve is installed in the safety valve to realize the switching of the safety valve's access and closed circuit modes under electric control. The gas regulating valve, the safety valve, and the solenoid valve can be connected through structures such as bellows and semi-rigid pipes to make the valve control component 201 form an integral structure. The valve control component 201 is fixed to the valve control fixing plate 103 through structures such as bolts; further, the safety valve is provided with two air inlet pipelines 203 and one air outlet pipeline 204, the two air inlet pipelines 203 are arranged in parallel and are connected to the air outlet pipeline 204, each gas connector 202 is connected to an air inlet pipeline 203, and each gas connector 202 can be connected to a gas filling device to simultaneously realize two-way gas supply, thereby improving the combustion calorific value.

[0039] The burner 30 is connected to the gas outlet pipeline 204 through the guide pipeline 304. The ignition system ignites the gas flowing out of the burner 30 to form an open flame heat source for heating.

[0040] In one embodiment, each gas connector 202 is rotatably connected to an air intake pipe 203. Specifically, each gas connector 202 is threadedly connected to the air intake pipe 203 so that the gas connector 202 can be moved away from the burner 30. When the gas filling device is installed, space is made for the gas filling device to facilitate the installation of the gas filling device.

[0041] In one embodiment, if Figure 2 and Figure 3As shown, the ignition system also includes an ignition component, which includes a control knob 206, a mother fire nozzle 207, an electrode rod 208 and a thermocouple 209. The gas outlet pipeline 204 is provided with a gas outlet branch 205, and the gas outlet branch 205 is connected to the gas outlet pipeline 204; the control knob 206 is arranged on the enclosure 102 and is electrically connected to the valve control component 201, and the mother fire nozzle 207, the electrode rod 208 and the thermocouple 209 are all fixedly arranged in the burner 30; the mother fire nozzle 207 pipeline is connected to the gas outlet branch 205, and the electrode rod 208 is arranged close to the mother fire nozzle 207; the electrode rod 208 and the thermocouple 209 are electrically connected to the valve control component 201. Specifically, when the control knob 206 is rotated to the ignition position, the control knob 206 generates current to make the electromagnetic valve control the safety valve to be in a conducting state, and the current passes through the wire to the electrode rod 2 08 generates electric sparks; after the safety valve is turned on, the two gas flows converge and flow to the gas outlet pipe 204 and the gas outlet branch 205 respectively, wherein the gas outlet pipe 204 guides the gas to the burner 30, and the gas outlet branch 205 guides the gas to the mother fire nozzle 207 through the mother fire pipe 211, and the electric spark ignites the gas ejected from the mother fire nozzle 207 to form a mother fire, and the mother fire further ignites the gas flowing out of the burner 30, and finally forms a heat source for heating; in this process, the mother fire increases the temperature of one end of the thermocouple 209, so that the thermocouple 209 generates an electromotive force to form an electric current, and the current is transmitted to the solenoid valve through the wire. When the gas is insufficient, the mother fire goes out, and the current generated by the thermocouple 209 disappears. At this time, the solenoid valve position is restored, closing the channel of the safety valve, thereby disconnecting the gas, ensuring that the desktop heater stops working and ensuring safe use.

[0042] In one embodiment, if Figure 4 As shown, the mother fire nozzle 207 is provided with an oxygen-deficient protective gas port 20a, and the oxygen-deficient protective gas port 20a is arranged on the side of the mother fire nozzle 207 facing away from the burner 30, so as to ensure that the oxygen-deficient protective gas port 20a can fully inhale external air to mix with the fuel gas for combustion. When the oxygen content in the surrounding environment decreases or the carbon monoxide content increases, the air inhaled by the oxygen-deficient protective gas port 20a is not sufficient to ignite the fuel gas to form a mother fire, and the current generated by the thermocouple 209 disappears. At this time, the solenoid valve position is restored, closing the channel of the safety valve, thereby disconnecting the gas, ensuring that the desktop heater stops working and ensuring safe use.

[0043] In one embodiment, if Figure 3 As shown, the ignition system also includes a tilt switch 212, which is fixed in the accommodating cavity and electrically connected to the valve control assembly 201. Specifically, when the desktop heater is working normally, the tilt switch 212 is electrically connected to the solenoid valve of the valve control assembly 201. When the desktop heater topples over due to external force, causing the tilt switch 212 to be disconnected, the power supply circuit of the solenoid valve is disconnected, and the solenoid valve is closed, thereby disconnecting the gas, and the desktop heater stops working to ensure safe use.

[0044] In one embodiment, if Figure 3 and Figure 4 As shown, the burner 30 includes a burner head 301, a protective cover 32 and a protective pipeline 303. The burner head 301 is connected to the guide pipeline 304, and the burner head 301 is arranged in the protective cover 32. Both ends of the protective pipeline 303 are connected to the enclosure 102 and the protective cover 32, and the guide pipeline 304 is located in the protective pipeline 303; the mother fire nozzle 207, the electrode rod 208 and the thermocouple 209 are all arranged in the end of the protective pipeline 303 close to the burner head 301, which effectively prevents the burner head 301 and the guide pipeline 304 from being damaged and causing air leakage; wherein, the cross section of the burner head 301 is circular, so that the heat generated at the burner head 301 can be more evenly transferred to the surroundings to improve the thermal efficiency. Based on this, the protective cover 32 and the protective pipeline 303 are both set to be circular at the end connection to facilitate the assembly connection between the three.

[0045] In one embodiment, if Figure 3 As shown, the combustion burner head 301 includes a plurality of gas outlet flame holes 30a, and each gas outlet flame hole 30a is connected to the guide pipe 304; the plurality of gas outlet flame holes 30a are evenly distributed along the outer edge of the combustion burner head 301, and the mother fire nozzle 207 and the electrode rod 208 are arranged toward some of the gas outlet flame holes 30a, so that the mother fire at the mother fire nozzle 207 ignites the gas outlet flame holes 30a close thereto, thereby igniting the gas flowing out from all the combustion burners 301 in turn, and the heat generated by the gas can be radiated from all sides of the combustion burner head 301, thereby increasing the heating area.

[0046] In one embodiment, if Figure 2 As shown, the burner 30 also includes an infrared cover 305, which is arranged in the protective outer cover 32 and covers the combustion burner head 301; the infrared cover 305 is provided with a first air inlet hole 30b and a plurality of second air inlet holes 30c, the first air inlet hole 30b is arranged close to the mother fire nozzle 207, and the plurality of second air inlet holes 30c are arranged along the height extension direction of the infrared cover 305, wherein outside air can be sucked in from the first air inlet hole 30b and mixed with the fuel gas, so that the mother fire nozzle 207 and the gas outlet flame hole 30a facing the electrode rod 208 are ignited, and the second air inlet hole 30c sucks in a large amount of air for igniting the fuel gas coming out of other gas outlet flame holes 30a of the combustion burner head 301, and during the gas combustion process, the infrared cover 305 concentrates the heat generated by the combustion burner head 301 so that it can be transferred from all sides, thereby improving the thermal efficiency, and the infrared cover 305 can promote the infrared radiation emitted by the flame, so that the heat transfer is faster and the heating efficiency is higher.

[0047] In one embodiment, if Figure 2As shown, the protective outer cover 32 includes a protective net 321 and a reflective cover 322, the protective net 321 is connected to the end of the protective pipeline 303 away from the base 101, and the reflective cover 322 is covered on the end of the protective net 321 away from the protective pipeline 303, the protective net 321 and the reflective cover 322 enclose a protective space, and the infrared cover 305 is located in the protective space; wherein, the cross-street area of ​​the protective net 321 gradually increases from the end connected to the protective pipeline 303 to the end away from the protective pipeline 303, so as to form a larger protection area around the burner head 301, and further, the reflective cover 322 forms a concave arc surface on the side facing the infrared cover 305, so that the reflective cover 322 forms a heat gathering effect, so that the heat is evenly transferred to the surroundings.

[0048] In one embodiment, if Figure 3 As shown, the burner 30 is provided with an ignition fixing assembly, which includes a fixing cover 306 and an ignition fixing plate 307. The fixing cover 306 is arranged at one end of the protective pipeline 303 close to the burner 30 and encloses a fixed cavity. The ignition fixing plate 307 is arranged in the fixed cavity. The mother fire nozzle 207, the electrode rod 208 and the thermocouple 209 are detachably arranged on the ignition fixing plate 307; further, the fixing cover 306 is provided with an air inlet 30d, and the air inlet 30d is connected to the fixed cavity. In this way, when the desktop heater shakes slightly, the mother fire nozzle 207, the electrode rod 208 and the thermocouple 209 all maintain a stable position, thereby preventing the formed mother fire from being extinguished and preventing the desktop heater from stopping working; when the desktop heater is working normally, the outside air enters from the air inlet 30d and flows to the mother fire nozzle 207, thereby being fully mixed with the fuel gas to improve the combustion efficiency.

[0049] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A desktop heater, characterized in that: The desktop heater comprises: A base assembly (10), the base assembly (10) comprising a base (101) and a surrounding plate (102), the surrounding plate (102) being movably connected to the base (101), the surrounding plate (102) and the base (101) forming a receiving cavity, the receiving cavity having a valve-controlled fixing plate (103) therein; An ignition system, the ignition system comprising a valve control component (201) and two gas connectors (202), the valve control component (201) being connected to the valve control fixing plate (103); the valve control component (201) being provided with two air inlet pipelines (203) and one air outlet pipeline (204), the two air inlet pipelines (203) being arranged in parallel and both being connected to the air outlet pipeline (204), and each of the gas connectors (202) being connected to one of the air inlet pipelines (203); and A burner (30), wherein the burner (30) is connected to the gas outlet pipeline (204) via a guide pipeline (304).

2. The desktop heater according to claim 1, characterized in that: Each of the gas connectors (202) is rotatably connected to an air intake pipeline (203).

3. The desktop heater according to claim 1, characterized in that: The ignition system further comprises an ignition assembly, which comprises a control knob (206), a primary fire nozzle (207), an electrode rod (208) and a thermocouple (209); the gas outlet pipeline (204) is provided with a gas outlet branch (205), and the gas outlet branch (205) is connected to the gas outlet pipeline (204); the control knob (206) is arranged on the enclosure (102) and is electrically connected to the valve control assembly (201); the primary fire nozzle (207), the electrode rod (208) and the thermocouple (209) are all fixedly arranged in the burner (30); the primary fire nozzle (207) pipeline is connected to the gas outlet branch (205), and the electrode rod (208) is arranged close to the primary fire nozzle (207); the electrode rod (208) and the thermocouple (209) are electrically connected to the valve control assembly (201).

4. The desktop heater according to claim 3, characterized in that: The primary fire nozzle (207) is provided with an oxygen-deficient protective gas port (20a), and the oxygen-deficient protective gas port (20a) is arranged on a side of the primary fire nozzle (207) facing away from the burner (30).

5. The desktop heater according to claim 4, characterized in that: The ignition system further comprises a tilt switch (212), wherein the tilt switch (212) is fixedly disposed in the accommodating chamber and electrically connected to the valve control component (201).

6. The desktop heater according to any one of claims 3 to 5, characterized in that: The burner (30) comprises a combustion burner head (301), a protective outer cover (32) and a protective pipeline (303); the combustion burner head (301) is connected to the guide pipeline (304); the combustion burner head (301) is arranged in the protective outer cover (32); the two ends of the protective pipeline (303) are connected to the enclosure (102) and the protective outer cover (32); the guide pipeline (304) is located in the protective pipeline (303); the primary fire nozzle (207), the electrode rod (208) and the thermocouple (209) are all arranged in the end of the protective pipeline (303) close to the combustion burner head (301).

7. The tabletop heater according to claim 6, characterized in that: The combustion burner head (301) is provided with a plurality of gas outlet flame holes (30a), and each of the gas outlet flame holes (30a) is connected to the guide pipeline (304); the plurality of gas outlet flame holes (30a) are evenly distributed along the outer edge of the combustion burner head (301), and the primary fire nozzle (207) and the electrode rod (208) are arranged toward some of the gas outlet flame holes (30a).

8. The tabletop heater according to claim 6, characterized in that: The burner (30) further comprises an infrared cover (305), wherein the infrared cover (305) is arranged in the protective outer cover (32) and covers the combustion burner head (301); the infrared cover (305) is provided with a first air inlet hole (30b) and a plurality of second air inlet holes (30c), wherein the first air inlet hole (30b) is arranged close to the primary fire nozzle (207), and the plurality of second air inlet holes (30c) are arranged along a height extension direction of the infrared cover (305).

9. The desktop heater according to claim 8, characterized in that: The protective outer cover (32) comprises a protective net (321) and a reflective cover (322); the protective net (321) is connected to an end of the protective pipeline (303) away from the base (101); and the reflective cover (322) is covered on an end of the protective net (321) away from the protective pipeline (303); the protective net (321) and the reflective cover (322) enclose a protective space, and the infrared cover (305) is located in the protective space.

10. The tabletop heater according to claim 6, characterized in that: The burner (30) is provided with an ignition fixing assembly, the ignition fixing assembly comprising a fixing cover (306) and an ignition fixing plate (307), the fixing cover (306) being arranged at one end of the protection pipeline (303) close to the burner (30) and enclosing to form a fixing cavity, the ignition fixing plate (307) being arranged in the fixing cavity, the primary fire nozzle (207), the electrode rod (208) and the thermocouple (209) being detachably arranged on the ignition fixing plate (307); And / or, the fixed cover (306) is provided with an air inlet (30d), and the air inlet (30d) is connected to the fixed cavity.

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