Portable heater

Abstract

The utility model discloses a portable heater, and relates to the field of heating equipment, the portable heater comprises a box body and an air heater arranged in the box body, the box body comprises a first half box and a second half box, the air heater is arranged in the first half box, a storage space is formed in the second half box, and the air heater is arranged in the storage space. And a connecting piece for detachably connecting the first half box and the second half box is connected between the first half box and the second half box. The portable warmer has the advantages that the carrying convenience of the portable warmer and accessories of the portable warmer is improved, and the portable warmer and the accessories can be rapidly and reliably installed on site.

Description

Technical Field

[0001] The present application relates to the field of heating equipment, and in particular to a portable heater. Background Art

[0002] As people's quality of life continues to improve, outdoor camping, exploration and leisure activities have gradually become an important way for modern people to pursue nature and relax. In these activities, outdoor tents are temporary residences for campers, so the warmth and heating issues are particularly important. Especially in cold seasons or high altitude areas, the temperature inside the tent is often extremely low. If there is a lack of effective heating measures, the safety and comfort of campers will be seriously affected.

[0003] The existing patent with announcement number CN201355089Y discloses a portable heater, which is composed of a box, an air heater, a fuel tank and an electrical control box. The air heater is connected to the fuel tank, the electrical control box is connected to the air heater, a warm air cloth cylinder extends from the air heater through the box, and the air heater also has an air inlet pipe and an exhaust pipe. In actual use, the air heater extracts fuel from the fuel tank, the fuel burns to heat the air, and the hot air can be sent to the tent through the warm air cloth cylinder.

[0004] However, the normal use of portable heaters often requires the independent carrying of some accessories (such as detachable warm air cloth cylinder, exhaust pipe, connecting wires, oil pipeline, etc.), which causes inconvenience to travel and there is room for improvement. Utility Model Content

[0005] In order to improve the problem in the related art that some portable heater accessories need to be carried independently, causing inconvenience in carrying during travel, the present application provides a portable heater.

[0006] The present application provides a portable heater, which adopts the following technical solution:

[0007] A portable heater includes a box body and an air heater arranged in the box body, the box body includes a first half box and a second half box, the air heater is installed in the first half box, a storage space is formed in the second half box, and a connector that can detachably connect the first half box and the second half box is connected between the first half box and the second half box.

[0008] By adopting the above technical solution, in actual use, some accessories can be placed in the storage space, and when in use, the connecting piece releases the connection between the first half box and the second half box, takes out the accessories, and then fixes the first half box and the second half box by the connecting piece. In this way, the portable heater and its accessories are more portable.

[0009] Preferably, one side of the first half box and the second half box is hinged, and the connecting piece is used to detachably connect the first half box and the second half box at a position away from the hinge of the first half box and the second half box.

[0010] By adopting the above technical solution, it is convenient to open and close the box.

[0011] Preferably, a fuel tank for supplying fuel to the air heater is detachably connected to the outside of the box body.

[0012] By adopting the above technical solution, the fuel tank can be detachably connected to the outside of the box body, which is convenient for refueling the fuel tank, observing the oil volume, and carrying the fuel.

[0013] Preferably, a hook is provided on the outer side of the box body, and a hanging ear is provided on the outer wall of the oil tank, and the hanging ear is hooked and matched with the hook.

[0014] By adopting the above technical solution, the installation and unloading of the oil tank are facilitated.

[0015] Preferably, a blocking net for stabilizing objects is provided in the storage space;

[0016] The blocking net is an elastic blocking net;

[0017] The corners of the barrier net can be detachably fixed on the side walls of the storage space.

[0018] By adopting the above technical solution, in actual use, accessories and operating manuals can be placed between the barrier net and the side wall of the storage space, and the barrier net can maintain the stability of the accessories, thereby reducing the occurrence of accessories moving significantly in the box and colliding with the air heater.

[0019] Preferably, a mounting seat and a vent pipe are provided on the outer side of the box body, the mounting seat is fixedly installed on the outer side of the box body, a connecting port is provided on the mounting seat, a first magnetic attraction member is provided on the mounting seat, a second magnetic attraction member is provided at one end of the vent pipe, and the first magnetic attraction member and the second magnetic attraction member are magnetically matched, and the vent pipe is connected with the connecting port;

[0020] The air heater comprises an air outlet, and the air outlet of the air heater penetrates the side wall of the box body and the connecting port;

[0021] The ventilation tube is a telescopic tube.

[0022] By adopting the above technical solution, the first magnetic attraction member and the second magnetic attraction member cooperate to facilitate the rapid installation and removal of the ventilation pipe on the box body, saving time and helping to increase the life of the ventilation pipe.

[0023] In addition, the ventilation tube is arranged as a retractable tube. When in an idle state, the retractable tube can be retracted and placed in a storage space, so that the ventilation tube is easy to carry.

[0024] Preferably, the telescopic tube is a telescopic aluminum foil tube.

[0025] By adopting the above technical solution, the heat loss of warm air to the outside is reduced, and the air supply stroke can be extended or shortened at will through the telescopic hose, and any air outlet direction can also be changed.

[0026] Preferably, the air heater comprises a combustion-supporting air inlet, the combustion-supporting air inlet is connected to an air filter, and a ventilation hole is formed on a side wall of the box body adjacent to the air filter.

[0027] By adopting the above technical solution, the entry of debris into the air heater is reduced, ensuring the normal operation of the air heater.

[0028] Preferably, the air heater comprises a smoke exhaust port, the smoke exhaust port is connected to a smoke exhaust pipe, and one end of the smoke exhaust pipe away from the smoke exhaust port is connected to the outside of the box;

[0029] The outer side of the smoke exhaust pipe is coated with a heat insulation layer;

[0030] A heat insulation seat is fixed on the side wall of the box body, a smoke delivery pipe is fixed on the heat insulation seat, a avoidance opening is opened on the box body at the position of the heat insulation seat, the smoke delivery pipe runs through the heat insulation seat and the avoidance opening, and the side wall of the avoidance opening is spaced from the smoke delivery pipe.

[0031] By adopting the above technical solution, the smoke exhausted by the air heater is transported to the outside, and the heat insulation layer and the heat insulation seat cooperate to reduce the conduction of smoke heat to the box body and inside the box body.

[0032] Preferably, the air heater includes an oil inlet pipe, and a first two-way self-sealing quick connector is arranged between the oil inlet pipe and the oil delivery pipe. The first two-way self-sealing quick connector includes a first connector and a second connector, the first connector is connected to the oil inlet pipe, and the second connector is connected to the oil delivery pipe.

[0033] By adopting the above technical solution, when not in use, the oil pipeline can be removed through the first two-way self-sealing quick connector, and the oil pipeline can be placed in the storage space for easy carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an axonometric diagram mainly showing the overall structure of the pipeline connection structure of this embodiment;

[0035] Figure 2 This is an exploded schematic diagram mainly showing the structure of the mounting base in this embodiment;

[0036] Figure 3 This is an exploded schematic diagram mainly showing the docking seat structure of this embodiment;

[0037] Figure 4 This is an axonometric diagram mainly showing the structure of the portable heater of this embodiment;

[0038] Figure 5 This is a schematic diagram of the installation structure of the barrier net in this embodiment;

[0039] Figure 6 This is a schematic diagram of the installation structure of the air heater mainly embodied in this embodiment;

[0040] Figure 7 This is an exploded schematic diagram of the structure of the air heater in this embodiment.

[0041] Figure 8 This is a schematic diagram of the rubber seat and oil pump structure of this embodiment.

[0042] Fig. 9 This is an exploded schematic diagram of the avoidance opening and the oil pipeline structure of this embodiment.

[0043] Fig.10 This is an exploded schematic diagram mainly showing the oil pipeline structure of this embodiment.

[0044] Reference numerals: 1, mounting seat; 11, connecting port; 12, first magnetic attraction member; 121, magnetic block; 2, vent pipe; 21, second magnetic attraction member; 211, docking seat; 2111, docking port; 212, positioning wall; 3, box body; 31, first half box; 311, handle; 312, mounting bracket; 313, positioning surface; 314, rubber seat; 315, hook; 316, vent; 317, avoidance port; 32, second half box; 321, storage space; 322, blocking net; 323, knob bolt; 33, connector; 4, air heater; 41. Air inlet; 42. Air outlet; 43. Oil inlet pipe; 431. Oil pump; 44. Combustion air inlet; 441. Air filter; 45. Smoke exhaust port; 451. Smoke exhaust pipe; 452. Thermal insulation layer; 5. First two-way self-sealing quick connector; 51. First connector; 52. Second connector; 6. Oil pipeline; 61. Transfer pipe; 62. Second two-way self-sealing quick connector; 621. Third connector; 622. Fourth connector; 6221. Sealing piece; 623. Oil extraction pipe; 7. Oil tank; 71. Hanging ear; 8. Thermal insulation seat; 81. Smoke delivery pipe; 82. Pull ring. DETAILED DESCRIPTION

[0045] The present application is further described in detail below in conjunction with the accompanying drawings.

[0046] In the related art, air heaters include fuel air heaters, which use fuel as energy and generate heat by burning to heat the air. It uses a fuel supply system to introduce fuel into the combustion chamber, mixes with air and ignites it. The generated high-temperature flame transfers heat to the air through a heat exchanger, and the heated air is sent to the space that needs to be heated by a fan or blower. The patent document with patent publication number CN105416006A discloses a plateau-type air heater, the patent document with patent announcement number CN213892111U discloses a dual brushless motor combustion head parking fuel air heater, the patent document with patent announcement number CN211601101U discloses a parking air heater, and the patent application with patent publication number CN117774609A discloses a fast preheating parking heater, all of which are air heaters.

[0047] As a transition device for connecting pipes, the two-way self-sealing quick connector improves the fluid leakage problem that may be caused by the traditional quick connector during the disconnection and connection process. Among them, the patent with the patent publication number CN213206896U discloses a two-way self-sealing quick connector, the patent with the patent publication number CN213776734U discloses a fast two-way self-sealing union connector, and the patent with the patent publication number CN207145826U discloses a two-way self-sealing quick connector, all of which belong to the two-way self-sealing quick connector.

[0048] An embodiment of the present application discloses a pipeline connection structure.

[0049] See also Figure 1 and Figure 2 A pipe connection structure includes a mounting base 1 and a vent pipe 2, wherein a connecting port 11 is provided on the mounting base 1, a first magnetic member 12 is provided on the mounting base 1, a second magnetic member 21 is provided at one end of the vent pipe 2, and the first magnetic member 12 and the second magnetic member 21 are magnetically matched, and the vent pipe 2 is connected with the connecting port 11. In actual use, the mounting base 1 can be installed at the heating air outlet of the heating equipment, so that the heating air outlet of the heating equipment is connected with the connecting port 11, and the vent pipe 2 can be quickly installed through the first magnetic member 12 and the second magnetic member 21.

[0050] See also Figure 2 and Figure 3Specifically, the first magnetic component 12 is a magnetic block 121, which is embedded in the mounting seat 1, and a plurality of magnetic blocks 121 are arranged around the connecting port 11. In the present embodiment, four magnetic blocks 121 are evenly spaced around the connecting port 11. The second magnetic component 21 is a docking seat 211, which is provided with a docking port 2111, and one end of the vent pipe 2 close to the mounting seat 1 is connected to the docking port 2111, and the docking seat 211 is abutted against the mounting seat 1, and the magnetic block 121 and the docking seat 211 are magnetically matched. In the present embodiment, the docking seat 211 is made of iron, preferably made of galvanized iron plate.

[0051] In order to facilitate the carrying of the ventilation tube 2, the ventilation tube 2 is a retractable tube, and preferably a retractable aluminum foil tube, which can insulate the airflow passing through the retractable aluminum foil tube and guide the air outlet.

[0052] It should be pointed out that the mounting base 1 can be fixedly installed at the heating air outlet of the heating equipment by countersunk bolts.

[0053] The implementation principle of a pipe connection structure in the embodiment of the present application is as follows: in actual use, the mounting base 1 can be mounted on the heating air outlet of the heating equipment, so that the heating air outlet of the heating equipment is connected with the connecting port 11; at this time, the docking base 211 can be magnetically attracted to the mounting base 1 through the magnetic block 121, so that the ventilation pipe 2 is connected with the heating air outlet of the heating equipment, and the warm air can be heated into the tent through the ventilation pipe 2. When idle, the ventilation pipe 2 and the docking base 211 can be directly and quickly removed from the mounting base 1.

[0054] The embodiment of the present application also discloses a portable heater.

[0055] See also Figure 4 and Figure 5 The portable heater includes a box body 3 and an air heater 4 arranged in the box body 3. The box body 3 is made of plastic material, and the box body 3 includes a first half box 31 and a second half box 32. The air heater 4 is installed in the first half box 31, and a storage space 321 is formed in the second half box 32. A connector 33 that can detachably connect the first half box 31 and the second half box 32 is connected between the first half box 31 and the second half box 32.

[0056] One side of the first half box 31 and the second half box 32 is hinged, and the connecting member 33 is used to detachably connect the first half box 31 and the second half box 32 away from the hinge of the first half box 31 and the second half box 32. In this embodiment, the connecting member 33 is a lock. In other embodiments, the connecting member 33 can also be a bolt, which can pass through the edge of the first half box 31 and be screwed into the second half box 32; the connecting member 33 can also include a bolt and a nut, so that the bolt passes through the edge of the first half box 31 and the second half box 32, and the nut and the bolt cooperate to lock the first half box 31 and the second half box 32. In order to facilitate the movement of the portable heater, the outer wall of the first box body 3 is hinged with a handle 311, and the handle 311 and the connecting member 33 are located on the same side. In actual use, the first half box 31 and the second half box 32 can be opened more quickly through the connecting member 33.

[0057] A blocking net 322 for stabilizing objects is provided in the storage space 321. The blocking net 322 is an elastic blocking net 322, and the corners of the blocking net 322 are detachably fixed to the side wall of the storage space 321. In this embodiment, the blocking net 322 is rectangular, and the four corners of the blocking net 322 are locked and fixed to the side wall of the second half box 32 by knob bolts 323. When in use, some objects or accessories can be placed between the blocking net 322 and the side wall of the first half box 31, and the blocking net 322 presses the objects or accessories, thereby reducing the occurrence of large-scale movement of objects or accessories during the movement of the heater.

[0058] See also Figure 6 and Figure 7 The air heater 4 includes an air inlet 41 and an air outlet 42, which are located at positions away from each other on the air heater 4, and the air inlet 41 and the air outlet 42 of the air heater 4 respectively penetrate the two opposite side walls of the first box body 3. In order to improve the stability of the air heater 4, a mounting bracket 312 is fixed on the side wall of the first box body 3, and the middle part of the air heater 4 is fixed to the mounting bracket 312.

[0059] See also Figure 8 and Fig. 9, the portable heater also includes a pipe connection structure, which is located outside the first box body 3 and is arranged corresponding to the exhaust port 42 of the air heater 4. Specifically, the mounting seat 1 is fixedly mounted on the outer wall of the first box body 3, and the exhaust port 42 of the air heater 4 passes through the connecting port 11. In order to facilitate the docking of the docking seat 211 and the mounting seat 1, a positioning surface 313 is provided at a position close to the mounting seat 1 of the first half box 31, and a positioning wall 212 is provided on the docking seat 211, and the positioning wall 212 abuts against the positioning surface 313. In this embodiment, the positioning surface 313 and the positioning wall 212 are both planes. In actual use, the cooperation between the positioning surface 313 and the positioning wall 212 facilitates the installation of the docking seat 211 and helps to improve the stability of the connection between the docking seat 211 and the mounting seat 1. In actual use, the ventilation pipe 2 of the pipe connection structure can be used to heat the tent.

[0060] See also Figure 8 and Fig.10 The air heater 4 includes an oil inlet pipe 43, which is connected to an oil pump 431, a first two-way self-sealing quick connector 5, and an oil delivery pipe 6 in sequence. The oil pump 431 is located in the first half box 31, a rubber seat 314 is fixed in the first half box 31, the oil pump 431 is fixed on the rubber seat 314, and the oil injection port of the oil pump 431 is connected to the oil inlet pipe 43. The first two-way self-sealing quick connector 5 includes a first connector 51 and a second connector 52, the oil inlet of the oil pump 431 is connected to the first connector 51, and the second connector 52 is connected to the oil delivery pipe 6. In addition, the first connector 51 is fixed to the outer wall of the first box body 3. In actual use, the portable heater is placed upright, and the handle 311 is located on the upper side. At this time, the first connector 51 is located on the upper side of the box body 3, the first connector 51 is set upward, and the second connector 52 is plug-connected with the first connector 51 from top to bottom.

[0061] The oil delivery pipe 6 includes a transfer pipe 61, a second two-way self-sealing quick connector 62 and an oil extraction pipe 623. The transfer pipe 61 is connected to the second connector 52, and the second two-way self-sealing quick connector 62 is connected in series between the transfer pipe 61 and the oil extraction pipe 623. The second two-way self-sealing quick connector 62 includes a third connector 621 and a fourth connector 622. The third connector 621 is connected to an end of the transfer pipe 61 away from the second connector 52, and the fourth connector 622 is connected to the oil extraction pipe 623. A sealing member 6221 for sealing the opening of the oil tank 7 is connected to the side of the fourth connector 622 close to the oil extraction pipe 623. The fourth connector 622 penetrates the sealing member 6221 and is fixed to the sealing member 6221. In this embodiment, the sealing member 6221 is a sealing cover. In other embodiments, the sealing member 6221 may also be a sealing plug.

[0062] See also Fig. 9 and Fig.10At the same time, the first half box 31 is detachably connected to the oil tank 7, the first half box 31 is provided with a hook 315 on the outside, and the outer wall of the oil tank 7 is provided with a lug 71, which is hooked and matched with the hook 315. The end of the oil extraction pipe 623 away from the fourth joint 622 extends into the oil tank 7 and sucks the fuel in the oil tank 7, and the sealing member 6221 is threadedly connected to the opening of the oil tank 7 and blocks the opening of the oil tank 7. In actual use, the oil pump 431 can extract the oil in the oil tank 7 through the oil delivery pipe 6 and supply it to the air heater 4 through the oil inlet pipe 43.

[0063] In addition, in other embodiments, a fuel filter is connected in series between the first connector 51 and the oil inlet of the oil pump 431 to reduce the amount of impurities entering the air heater 4 .

[0064] See also Figure 7 and Fig. 9 The air heater 4 includes a combustion air inlet 44 and a smoke exhaust port 45. The combustion air inlet 44 is connected to an air filter 441, and a vent 316 is provided on the side wall of the first half box 31 adjacent to the air filter 441. In other embodiments, a rainproof ventilation grille is provided at the vent 316 of the first half box 31 to prevent direct splashing of rainwater and to block the entry of debris.

[0065] The smoke exhaust port 45 is connected to a smoke exhaust pipe 451, and the outer side of the smoke exhaust pipe 451 is covered with a heat insulation layer 452. The heat insulation layer 452 can be made of glass wool, rock wool and other materials. A heat insulation seat 8 is fixed on the side wall of the first half box 31, and a smoke delivery pipe 81 is fixed on the heat insulation seat 8. The box body 3 is provided with a avoidance opening 317 at the position of the heat insulation seat 8. The smoke delivery pipe 81 passes through the heat insulation seat 8 and the avoidance opening 317. The side wall of the avoidance opening 317 is spaced from the smoke delivery pipe 81. The smoke exhaust pipe 451 is connected to the smoke delivery pipe 81 and is connected to the outside of the box body 3 through the smoke delivery pipe 81. In addition, the heat insulation seat 8 is located on the outside of the first half box 31, and the first half box 31 is provided with a pull ring 82 on the inner side of the avoidance opening 317. The pull ring 82 is fixed to the heat insulation seat 8 by a pull bolt and a nut. The pull bolt can be a countersunk bolt, and the smoke delivery pipe 81 passes through the pull ring 82. In addition, in this embodiment, the heat insulating seat 8 partially penetrates the avoidance opening 317 inwardly, and the pull ring 82 is sleeved on the portion of the heat insulating seat 8 that penetrates into the first box body 31. In other embodiments, heat insulating pads can be arranged between the side wall of the first half box 31 and the heat insulating seat 8, and between the side wall of the first half box 31 and the pull ring 82. The heat insulating pads can be made of glass wool, rock wool, and other materials.

[0066] In order to reduce the smoke spreading around the portable heater, the first half box 31 can also be installed with the above-mentioned pipe connection structure at the vent 316. At this time, the mounting base 1 of the pipe connection structure can be the same component as the heat insulation base 8, that is, the magnetic block 121 is embedded and fixed on the heat insulation base 8, and the smoke delivery pipe 81 is connected to the ventilation pipe 2 of the pipe connection structure. In actual use, the smoke generated by the air heater 4 can be discharged to a position away from the box body 3 through the ventilation pipe 2 of the pipe connection structure.

[0067] In addition, in other embodiments, for the power consumption of the oil pump 431 and the air heater 4, a female socket can be set on the box body 3, so that the power circuits of the oil pump 431 and the air heater 4 are electrically connected to the female socket, and power can be taken from the vehicle by carrying a cigarette lighter or XT plug or DC plug with a corresponding male plug. Of course, the way of taking power is not limited to this one, and it is sufficient to realize normal power supply to the oil pump 431 and the air heater 4, which will not be repeated here.

[0068] The implementation principle of a portable heater in an embodiment of the present application is as follows: in actual use, the oil pump 431 draws oil from the oil tank 7 through the oil pipe 6, and supplies it to the air heater 4 through the oil inlet pipe 43; the combustion air is sent into the air heater 4 through the air filter 441 and the avoidance port 317; when the air heater 4 is running, the air enters the air heater 4 through the air inlet 41 and is heated, and then heats the tent through the exhaust port 42 and the ventilation pipe 2.

[0069] At the same time, the smoke generated by the air heater 4 is discharged through the smoke exhaust pipe 451, the smoke delivery pipe 81 and the corresponding ventilation pipe 2.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable heater, comprising a box (3) and an air heater (4) arranged in the box (3), characterized in that: The box body (3) comprises a first half box (31) and a second half box (32), the air heater (4) is installed in the first half box (31), a storage space (321) is formed in the second half box (32), and a connecting piece (33) for detachably connecting the first half box (31) and the second half box (32) is connected between the first half box (31) and the second half box (32).

2. A portable heater according to claim 1, characterized in that: One side of the first half box (31) and the second half box (32) is hinged, and the connecting piece (33) is used to detachably connect the first half box (31) and the second half box (32) at a position away from the hinged position of the first half box (31) and the second half box (32).

3. A portable heater according to claim 1, characterized in that: The outer side of the box body (3) is detachably connected to a fuel tank (7) for supplying fuel to the air heater (4).

4. A portable heater according to claim 3, characterized in that: A hook (315) is provided on the outer side of the box body (3), and a hanging ear (71) is provided on the outer wall of the oil tank (7), wherein the hanging ear (71) is hooked and matched with the hook (315).

5. A portable heater according to claim 1, characterized in that: A blocking net (322) for stabilizing objects is provided in the storage space (321); The blocking net (322) is an elastic blocking net (322); The corners of the blocking net (322) are detachably fixed to the side walls of the storage space (321).

6. A portable heater according to claim 1, characterized in that: The outer side of the box body (3) is provided with a mounting seat (1) and a ventilation pipe (2); the mounting seat (1) is fixedly mounted on the outer side of the box body (3); the mounting seat (1) is provided with a communication port (11); the mounting seat (1) is provided with a first magnetic attraction component (12); one end of the ventilation pipe (2) is provided with a second magnetic attraction component (21); the first magnetic attraction component (12) and the second magnetic attraction component (21) are magnetically matched, and the ventilation pipe (2) is connected with the communication port (11); The air heater (4) comprises an air outlet (42), and the air outlet (42) of the air heater (4) penetrates the side wall of the box body (3) and the connecting port (11); The ventilation pipe (2) is a telescopic pipe.

7. A portable heater according to claim 6, characterized in that: The telescopic tube is a telescopic aluminum foil tube.

8. A portable heater according to claim 1, characterized in that: The air heater (4) comprises a combustion-supporting air inlet (44), the combustion-supporting air inlet (44) is connected to an air filter (441), and a ventilation hole (316) is provided on a side wall of the box body (3) adjacent to the air filter (441).

9. A portable heater according to claim 1, characterized in that: The air heater (4) comprises a smoke exhaust port (45), the smoke exhaust port (45) being connected to a smoke exhaust pipe (451), and one end of the smoke exhaust pipe (451) facing away from the smoke exhaust port (45) being connected to the outside of the box (3); The smoke exhaust pipe (451) is coated with a heat insulation layer (452) on the outside; A heat insulation seat (8) is fixed on the side wall of the box body (3), a smoke delivery pipe (81) is fixed on the heat insulation seat (8), a avoidance opening (317) is opened on the box body (3) at the position of the heat insulation seat (8), the smoke delivery pipe (81) passes through the heat insulation seat (8) and the avoidance opening (317), the side wall of the avoidance opening (317) is spaced from the smoke delivery pipe (81), and the smoke exhaust pipe (451) is connected to the smoke delivery pipe (81) and is connected to the outside of the box body (3) through the smoke delivery pipe (81).

10. A portable heater according to claim 1, characterized in that: The air heater (4) comprises an oil inlet pipe (43), a first two-way self-sealing quick connector (5) is provided between the oil inlet pipe (43) and the oil delivery pipe (6), the first two-way self-sealing quick connector (5) comprising a first connector (51) and a second connector (52), the first connector (51) being in communication with the oil inlet pipe (43), and the second connector (52) being in communication with the oil delivery pipe (6).

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