Tabletop pellet stove

Abstract

The utility model discloses a desktop pellet heating stove relates to heating stove technical field, wherein, desktop pellet heating stove includes cover pipe, and vertical setting, connecting pipe, and the lateral wall is equipped with first avoiding mouth, shell, and the lateral wall is equipped with second avoiding mouth, and the shell is sleeved in the periphery of connecting pipe, and the lateral wall of shell and the lateral wall between connecting pipe form first interval, and combustion assembly, including the feeding pipe and the flame outlet pipe of intercommunication, and the feeding cavity is formed in the feeding pipe, and the flame outlet pipe is formed flame outlet in the one end away from feeding pipe, and the bottom of feeding pipe forms the blanking port, and the flame outlet pipe is located in connecting pipe, and forms second interval between with connecting pipe, and one end of cover pipe is located in connecting pipe, and cover is located in the periphery of flame outlet, and one end of feeding pipe is located outside shell, and the other end passes through second avoiding mouth and first avoiding mouth in proper order and communicates with the flame outlet pipe. The utility model provides technical scheme to realize heat attenuation, and effectively plays the role of heat insulation protection, reduces the risk of scalding when user contacts.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a desktop pellet heater. Background Technology

[0002] The desktop pellet heater is an innovative heating device that uses small biomass pellets as fuel and combines heating and visual appeal. The flames are displayed through a transparent glass tube, creating the visual effect of a desktop fireplace, allowing users to enjoy the view while heating. However, this design may cause the external temperature of easily touched areas to rise, potentially resulting in burns. Utility Model Content

[0003] The main purpose of this invention is to propose a desktop pellet heater, which aims to reduce the risk of burns when users come into contact with it.

[0004] To achieve the above objectives, the present invention proposes a desktop pellet heater, comprising:

[0005] The cover tube is installed vertically.

[0006] The connecting pipe has a first clearance opening on its side wall;

[0007] The outer casing has a second clearance opening on its side wall. The outer casing is fitted around the connecting pipe, and a first gap is formed between the side wall of the outer casing and the side wall of the connecting pipe; and

[0008] The combustion assembly includes a feed pipe and a flame outlet pipe connected to each other. A feed chamber is formed inside the feed pipe. A flame outlet is formed at the end of the flame outlet pipe away from the feed pipe. A discharge port is formed at the bottom of the feed pipe. Both the flame outlet and the discharge port are connected to the feed chamber. The flame outlet pipe is disposed inside the connecting pipe and forms a second gap with the connecting pipe. One end of the cover pipe is disposed inside the connecting pipe and covers the outer periphery of the flame outlet. One end of the feed pipe is disposed outside the outer shell, and the other end passes through the second clearance port and the first clearance port in sequence and is connected to the flame outlet pipe.

[0009] In one embodiment, the desktop pellet heater further includes a grille and a discharge pipe. The grille is disposed at the bottom of the feeding chamber, and the discharge port is disposed at the grille. The discharge pipe is horizontally disposed, and the upper end of the discharge pipe has a discharge port corresponding to the grille.

[0010] In one embodiment, the desktop pellet heater further includes an ash receiving pipe, which is slidably disposed at the discharge pipe.

[0011] In one embodiment, a handle is provided at the end of the ash receiving pipe away from the discharge port;

[0012] In one embodiment, an upwardly extending baffle plate is provided at one end of the ash receiving pipe near the discharge port.

[0013] In one embodiment, the outer wall of the flame outlet tube is provided with a plurality of arc-shaped connecting ears, which are spirally arranged.

[0014] In one embodiment, the feed pipe includes a vertically arranged first feed section and an inclined second feed section. The first feed section is located outside the housing. One end of the second feed section is connected to the bottom of the first feed section, and the other end passes through the second clearance port and the first clearance port in sequence and enters the connecting pipe to connect with the flame outlet pipe.

[0015] In one embodiment, a sealing cover is detachably provided at the end of the first feeding section away from the second feeding section, and a gripping part is provided on the sealing cover.

[0016] In one embodiment, a limiting plate is provided on the side wall of the second feeding section. The limiting plate is located within the first interval and abuts against the inner wall of the outer shell.

[0017] In one embodiment, the desktop pellet heater further includes a support assembly, the support assembly comprising:

[0018] A support plate is disposed at the bottom of the outer shell and is fixedly connected to the outer shell; the discharge pipe is fixedly disposed on the support plate.

[0019] Multiple support legs are provided, and the multiple support legs are spaced apart at the bottom of the support plate.

[0020] In the technical solution of this utility model, the desktop pellet heater includes a combustion component, which includes a feed pipe and a flame outlet pipe. The fuel can be concentrated and burned in the feed pipe to generate a flame and release heat. The generated flame extends out of the flame outlet of the flame outlet pipe, making the flame more concentrated and more aesthetically pleasing. The cover pipe installed on the flame outlet can effectively block the direct contact between the outside and the flame, effectively protecting the user's safety. The vertical setting of the cover pipe also helps to guide the flame to extend vertically. It can not only be used for heating, but also for decorating the indoor home environment. The bottom of the feed pipe forms a discharge port, and air enters from the discharge port to promote the complete combustion of fuel in the feed chamber. The ash and other waste materials after fuel combustion fall off at the discharge port. Additionally, a connecting pipe is installed around the flame outlet tube to effectively protect the flame extending from the flame outlet tube. A shell is fitted around the connecting pipe, with a first clearance opening on the outer wall of the connecting pipe and a second clearance opening on the outer wall of the shell. The feed pipe passes through the second clearance opening and the first clearance opening in sequence to enter the connecting pipe and connect with the flame outlet tube. A first gap is formed between the shell and the connecting pipe, and a second gap is formed between the connecting pipe and the flame outlet tube. The first and second gaps are configured as cavities. When the heat generated by the flame in the flame outlet tube is radiated outward to the shell through the flame outlet tube and the connecting pipe, the cavity structure design achieves heat attenuation, keeping the surface temperature of the shell within a safe touch range. This effectively provides heat insulation and protection, reducing the risk of burns when users come into contact with the shell. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of an embodiment of the desktop particle heater provided by this utility model;

[0023] Figure 2 A cross-sectional structural diagram of the desktop particle heater provided by this utility model;

[0024] Figure 3 An exploded structural diagram of the desktop particle heater provided by this utility model from one perspective.

[0025] Figure 4 This is an exploded structural diagram of the desktop particle heater provided by this utility model from another perspective.

[0026] Explanation of icon numbers:

[0027] 100. Cover tube;

[0028] 200. Combustion assembly; 210. Feed pipe; 211. First feed section; 212. Second feed section; 220. Flame outlet pipe; 221. Flame outlet; 222. Connecting lug; 230. Grille; 240. Sealing cap; 241. Grip; 250. Limiting plate;

[0029] 300. Outer shell; 301. Second clearance opening; 310. Top plate; 311. Connecting hole;

[0030] 400. Connecting pipe; 401. First clearance opening;

[0031] 500. Discharge pipe; 510. Ash receiving pipe; 511. Handle; 512. Ash baffle; 513. Vertical plate; 514. Through hole;

[0032] 600, Support component; 610, Support plate; 620, Support leg.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] The desktop pellet heater is an innovative heating device that uses small biomass pellets as fuel and combines heating and visual appeal. The flames are displayed through a transparent glass tube, creating the visual effect of a desktop fireplace, allowing users to enjoy the view while heating. However, this design may cause the external temperature of easily touched areas to rise, potentially resulting in burns.

[0038] This utility model proposes a desktop particle heater.

[0039] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the desktop pellet heater includes:

[0040] The cover tube is 100mm and installed vertically.

[0041] The connecting pipe 400 has a first clearance opening 401 on its side wall;

[0042] The outer casing 300 has a second clearance opening 301 on its side wall. The outer casing 300 is fitted around the connecting pipe 400, and a first gap is formed between the side wall of the outer casing 300 and the side wall of the connecting pipe 400.

[0043] The combustion assembly 200 includes a feed pipe 210 and a flame outlet pipe 220 connected to each other. A feed chamber is formed inside the feed pipe 210. A flame outlet 221 is formed at the end of the flame outlet pipe 220 away from the feed pipe 210. A discharge port is formed at the bottom of the feed pipe 210. Both the flame outlet 221 and the discharge port are connected to the feed chamber. The flame outlet pipe 220 is located inside the connecting pipe 400 and forms a second gap with the connecting pipe 400. One end of the cover pipe 100 is located inside the connecting pipe 400 and covers the outer periphery of the flame outlet 221. One end of the feed pipe 210 is located outside the outer shell 300, and the other end passes through the second clearance port 301 and the first clearance port 401 in sequence and is connected to the flame outlet pipe 220.

[0044] In the technical solution of this utility model, the desktop pellet heater includes a combustion assembly 200, which includes a feed pipe 210 and a flame outlet pipe 220. Fuel can be concentrated and burned in the feed pipe 210 to generate a flame and release heat. The generated flame extends from the flame outlet 221 of the flame outlet pipe 220, making the flame more concentrated and aesthetically pleasing. A cover pipe 100 covering the flame outlet 221 effectively prevents direct contact between the outside and the flame, effectively protecting the user's safety. The vertical arrangement of the cover pipe 100 also helps guide the flame to extend vertically. It can be used not only for heating but also for decorating the interior home environment. A discharge port is formed at the bottom of the feed pipe 210, allowing air to enter and promote complete combustion of the fuel in the feed chamber. Ash and other waste materials from fuel combustion fall off at the discharge port. Additionally, a connecting pipe is provided around the outer periphery of the flame outlet pipe 220. The 400 effectively protects the flame extending from the flame outlet tube 220. A housing 300 is fitted around the outer periphery of the connecting tube 400. A first clearance opening 401 is formed on the outer wall of the connecting tube 400, and a second clearance opening 301 is formed on the outer wall of the housing 300. The feed tube 210 passes through the second clearance opening 301 and the first clearance opening 401 in sequence to enter the connecting tube 400 and connect to the flame outlet tube 220. A first gap is formed between the housing 300 and the connecting tube 400, and a second gap is formed between the connecting tube 400 and the flame outlet tube 220. The first and second gaps are configured as cavities. When the heat generated by the flame in the flame outlet tube 220 is radiated outward to the housing 300 through the flame outlet tube 220 and the connecting tube 400, the heat is attenuated by the cavity structure design, so that the surface temperature of the housing 300 is controlled within a safe touch range. This can effectively play a role in heat insulation and protection, reducing the risk of burns when users come into contact with it.

[0045] Specifically, the desktop pellet heater includes a combustion assembly 200, a casing 100, a connecting pipe 400, and an outer shell 300. The combustion assembly 200 includes an interconnected feed pipe 210 and a flame outlet pipe 220. The feed pipe 210 forms a feed chamber, with a discharge port at its lower bottom and an upper end connected to the flame outlet pipe 220. Biomass pellets, such as sawdust or straw compressed pellets, are placed in the feed chamber for complete combustion at the bottom. The ash produced by combustion falls through the discharge port, and the flame extends from the discharge port through the flame outlet pipe 220. Because the discharge pipe 500 extends vertically, it guides the flame vertically, resulting in high fuel combustion efficiency and low carbon emissions from the biomass pellets, which aligns with environmental protection trends. By sequentially attaching the connecting pipe 400 and the outer shell 300 around the flame outlet pipe 220, the temperature of the flame inside the flame outlet pipe 220 gradually decreases outward, keeping the temperature of the outer shell 300 within a safe range. Inside, the feed pipe 210 is inclined within the connecting pipe 400. Its upper end has a through hole communicating with the flame outlet pipe 220, allowing the flame to enter. Its lower end has a discharge port to allow ash to fall and promote airflow. A transparent cover pipe 100 is fitted at the discharge port, extending upwards to guide the flame vertically upwards, improving aesthetics. The cover pipe 100, connecting pipe 400, and outer shell 300 can be square or cylindrical tubes; no limitation is made. In one embodiment, a label plate is fixed to the outside of the outer shell 300. In another embodiment, a heat insulation ring is provided between the upper inner wall of the connecting pipe 400 and the outer periphery of the cover pipe 100. The heat insulation ring is fitted onto the cover pipe 100 to prevent heat transfer from the cover pipe 100 to the connecting pipe 400, further improving the heat insulation effect of the outer shell 300 and enhancing user safety. The heat insulation ring can be made of a flexible material to provide a certain degree of buffering and sealing. In one embodiment, a top plate 310 is provided on the top of the outer shell 300. The top plate 310 has an annular structure, with its outer wall connected to the outer shell 300 and its inner wall connected to the outer periphery of the connecting pipe 400. Multiple arc-shaped connecting holes 311 are provided on the top plate 310 at intervals. The connecting holes 311 communicate with the first interval, which can effectively dissipate heat through the connecting holes 311 and also serve as decoration with a certain aesthetic appeal.

[0046] In one embodiment, the cover tube 100 can be made of transparent glass tube, or it can be made of materials such as polyimide or polycarbonate, with high-temperature resistant borosilicate glass tube preferred. The shape of the flame inside the cover tube 100 can be clearly seen through its transparent material. In one embodiment, the glass tube can be made of different colors, so that the flame can be displayed in different colors through the glass tube, creating different indoor atmospheres.

[0047] In one embodiment, the flame outlet tube 220 is made of stainless steel. The flame generated inside the flame outlet tube 220 passes through the stainless steel flame outlet tube 220, and then sequentially through the second gap and the first gap to reach the outer casing 300, achieving a good heat insulation effect and further preventing burns during use. In other embodiments, the flame outlet tube can also be made of titanium alloy, aluminized steel plate, or aluminum alloy, which not only has high strength but also resistance to high-temperature corrosion, and no limitation is made here.

[0048] In an embodiment of this utility model, the desktop pellet heater further includes a grille 230 and a discharge pipe 500. The grille 230 is located at the bottom of the feeding chamber, and the discharge port is located at the grille 230. The discharge pipe 500 is horizontally arranged, and the upper end of the discharge pipe 500 is provided with a discharge port corresponding to the grille 230.

[0049] Please refer to Figure 2 and Figure 3 When the fuel burns in the feeding chamber, the fuel falls to the bottom of the feeding chamber and is supported by the grid 230, which prevents the fuel from falling. The ash produced by the fuel combustion can fall onto the discharge pipe 500 below through the discharge port and discharge port on the grid 230, which will not cause the accumulation of waste, nor will it affect the discharge of ash and the flow of air.

[0050] In embodiments of this utility model, such as Figure 2 As shown, the desktop pellet heater also includes an ash receiving pipe 510, which is slidably disposed at the discharge pipe 500. The ash receiving pipe 510 is slidably disposed inside the discharge pipe 500. When ash is generated during the use of the desktop pellet heater, the ash receiving pipe 510 is located inside the discharge pipe 500 to collect ash and other waste materials falling from the grille 230. When there is a lot of ash in the ash receiving pipe 510 or when the heater is finished, the ash receiving pipe 510 is slid at the discharge pipe 500 to move the ash receiving pipe 510 away from the discharge pipe 500, and the waste materials collected by the ash receiving pipe 510 are poured out and then put back into the discharge pipe 500 to collect waste materials.

[0051] In one embodiment, such as Figure 1 and 2 As shown, a handle 511 is provided at the end of the ash receiving pipe 510 away from the discharge port. The handle 511 can be made of insulating material such as silicone, or a silicone sleeve can be fitted over the handle 511, which has a good heat insulation effect. Please refer to [reference needed]. Figure 4 The ash receiving pipe 510 includes a base plate, side plates on both sides of the base plate, and a vertical plate 513 on the end of the base plate away from the discharge port. A handle 511 is installed on the vertical plate 513. The upper end of the ash receiving pipe 510 is open. Ash and other waste materials fall onto the ash receiving pipe 510 through the discharge port of the grid 230, thus completing the collection of waste materials. The ash receiving pipe 510 can be pulled out by the handle 511, making it easier to remove the ash receiving pipe 510 with leverage and complete the cleaning.

[0052] It should be noted that the vertical plate 513 is provided with a through hole 514. Air enters the ash receiving pipe 510 through the through hole 514, and then enters the feeding chamber through the discharge port of the grid 230 to promote the combustion of fuel.

[0053] In one embodiment, such as Figure 2 and Figure 4 As shown, an upward-extending baffle plate 512 is provided at one end of the ash receiving pipe 510 near the discharge port. Specifically, a limiting plate 250 is provided at the end of the ash receiving pipe 510 away from the vertical plate 513. Since the part of the feed pipe 210 inside the connecting pipe 400 is inclined, the grid 230 installed at its bottom is also inclined. When the ash and other waste generated by combustion fall on the ash receiving pipe 510, they may splash. The setting of the limiting plate 250 can prevent the ash from falling outside the ash receiving pipe 510, which facilitates the unified treatment of the waste generated in the furnace.

[0054] In embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the outer wall of the flame outlet pipe 220 is provided with multiple arc-shaped connecting ears 222, which are spirally arranged. Multiple holes are spaced apart on the body of the flame outlet pipe 220, connecting the inside of the flame outlet pipe 220 to the second partition. Air enters through the ash receiving pipe 510 and enters the connecting pipe 400 through the bottom gap between the ash receiving pipe 510 and the flame outlet pipe 220. The arrangement of the connecting ears 222 can change the airflow path into the cover pipe 100 within the connecting pipe 400, causing the flame extending from the flame outlet 221 to produce different shapes due to the influence of the air direction. For example, in this embodiment, the connecting ears 222 are spirally arranged, causing the air to enter in a spiral shape, thus making the flame exiting the flame outlet 221 spiral. The flame outlet pipe 220 allows for airflow through the holes, which facilitates combustion within the flame outlet pipe 220. In other embodiments, the connecting ears 222 can also be arranged on the outer wall of the flame outlet pipe 220 in other ways, such as inclined, vertical, or wavy arrangements, to achieve different flame effects; no limitation is made here.

[0055] In an embodiment of this utility model, the feed pipe 210 includes a vertically arranged first feed section 211 and an inclined second feed section 212. The first feed section 211 is located outside the housing 300. One end of the second feed section 212 is connected to the bottom of the first feed section 211, and the other end passes through the second clearance port 301 and the first clearance port 401 in sequence and enters the connecting pipe 400 to connect with the flame outlet pipe 220.

[0056] Please refer to Figure 2 and Figure 3The feed pipe 210 includes a vertically arranged first feed section 211 and a second feed section 212. The first feed section 211 is parallel to and spaced apart from the cover pipe 100. One end of the second feed section 212 is connected to the first feed section 211, and the other end is connected to the flame outlet pipe 220 in the connecting pipe 400. The grid 230 is located at the bottom of the second feed section 212. The vertically arranged first feed section 211, compared to the completely inclined feed pipe 210, can reduce the space occupied and facilitate transportation and use. Fuel enters in the first feed section 211 and is concentrated at the bottom of the feed chamber due to gravity, that is, in the second feed section 212 above the grid 230, which facilitates the combustion of fuel. The inclined arrangement of the second feed section 212 and the grid 230 prevents fuel and ash from clogging the feed inlet and also facilitates air to enter the feed chamber in the feed inlet to promote the combustion of fuel.

[0057] In an embodiment of this utility model, a sealing cover 240 is detachably provided at the end of the first feeding section 211 away from the second feeding section 212. A gripping part 241 is provided on the sealing cover 240. By providing the sealing cover 240, air convection in the feeding pipe 210 can be prevented, and flames can be prevented from entering the end of the feeding pipe 210 away from the flame outlet 221. This improves the flame combustion effect of the flame outlet 221, making the flames in the flame outlet pipe 220 and the cover pipe 100 more concentrated and more aesthetically pleasing. The gripping part 241 is connected to the outside of the sealing cover 240 by screws, making it easy to remove the sealing cover 240 by force. In one embodiment, the gripping part 241 can be made of insulating materials such as silicone, which has a good heat insulation effect. This is not limited here, and it can prevent burns when picking up the gripping part 241.

[0058] Please refer to Figure 2 and Figure 3 In this embodiment of the present invention, a limiting plate 250 is provided on the side wall of the second feeding section 212. The limiting plate 250 is located in the first interval and abuts against the inner wall of the outer shell 300. The second feeding section 212 passes through the second clearance port 301 and the first clearance port 401 in sequence and is connected to the flame outlet pipe 220. The bottom of the limiting plate 250 is fixedly connected to the inclined surface of the upper part of the outer side wall of the second feeding section 212. The side wall of the limiting plate 250 abuts against the inner wall of the outer shell 300. Since the second feeding section 212 is inclined, it has a tendency to open outward and move away from the outer shell 300. By setting the limiting plate 250, the feeding pipe 210 can be prevented from detaching from the outer shell 300.

[0059] Please refer to Figure 3 and Figure 4In an embodiment of this utility model, the desktop pellet heater further includes a support assembly 600, which includes a support plate 610 and support legs 620. The support plate 610 is located at the bottom of the outer shell 300 and is fixedly connected to the outer shell 300. The discharge pipe 500 is fixedly located on the support plate 610. Multiple support legs 620 are provided, and the multiple support legs 620 are spaced apart at the bottom of the support plate 610. The support plate 610 is integrally formed from a circular plate and a rectangular plate. The circular plate is located at the bottom of the outer shell 300 and is fixedly connected to the outer shell 300 to seal the bottom of the outer shell 300 with a cover 240. The rectangular plate extends radially along the circular plate, and the discharge pipe 500 is mounted on the rectangular plate. Above, fasteners such as bolts pass through the bottom wall of the rectangular plate and the discharge pipe 500 from bottom to top, and nuts are installed to install the discharge pipe 500 and the rectangular plate as a whole. The ash receiving pipe 510 slides inside the discharge pipe 500. Multiple support feet are provided at the bottom of the support plate 610. The support feet are connected to the support plate 610 by sheet metal and screws to improve the stability of the connection. In this embodiment, there are 3 support feet. The three support feet are spaced apart along the circumference of the circular plate. The support feet are inclined and extend radially away from the axis of the circular plate to improve the stability of the support feet, so that the desktop pellet heater can be placed more stably on the desktop or other support.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A desktop pellet heater, characterized in that, include: The cover tube is installed vertically; The connecting pipe has a first clearance opening on its side wall; The outer casing has a second clearance opening on its side wall. The outer casing is fitted around the periphery of the connecting pipe, and a first gap is formed between the side wall of the outer casing and the side wall of the connecting pipe. as well as The combustion assembly includes a feed pipe and a flame outlet pipe connected to each other. A feed chamber is formed inside the feed pipe. A flame outlet is formed at the end of the flame outlet pipe away from the feed pipe. A discharge port is formed at the bottom of the feed pipe. Both the flame outlet and the discharge port are connected to the feed chamber. The flame outlet pipe is disposed inside the connecting pipe and forms a second gap with the connecting pipe. One end of the cover pipe is disposed inside the connecting pipe and covers the outer periphery of the flame outlet. One end of the feed pipe is disposed outside the outer shell, and the other end passes through the second clearance port and the first clearance port in sequence and is connected to the flame outlet pipe.

2. The desktop pellet heater as described in claim 1, characterized in that, The desktop pellet heater also includes a grille and a discharge pipe. The grille is located at the bottom of the feeding chamber, and the discharge port is located at the grille. The discharge pipe is horizontally arranged, and the upper end of the discharge pipe has a discharge port corresponding to the grille.

3. The desktop pellet heater as described in claim 2, characterized in that, The desktop pellet heater also includes an ash receiving pipe, which is slidably disposed at the discharge pipe.

4. The desktop pellet heater as described in claim 3, characterized in that, A handle is provided at the end of the ash receiving pipe away from the discharge port.

5. The desktop pellet heater as described in claim 3, characterized in that, An upward-extending baffle plate is provided at one end of the ash receiving pipe near the discharge port.

6. The desktop pellet heater as described in claim 1, characterized in that, The outer wall of the flame outlet tube is provided with multiple arc-shaped connecting ears, which are spirally arranged.

7. The desktop pellet heater as described in claim 1, characterized in that, The feed pipe includes a vertically arranged first feed section and an inclined second feed section. The first feed section is located outside the outer shell. One end of the second feed section is connected to the bottom of the first feed section, and the other end passes through the second clearance port and the first clearance port in sequence and enters the connecting pipe to connect with the flame outlet pipe.

8. The desktop pellet heater as described in claim 7, characterized in that, A sealing cover is detachably provided at the end of the first feeding section away from the second feeding section, and a gripping part is provided on the sealing cover.

9. The desktop pellet heater as described in claim 8, characterized in that, A limiting plate is provided on the side wall of the second feeding section. The limiting plate is located within the first interval and abuts against the inner wall of the outer shell.

10. The desktop pellet heater as described in claim 3, characterized in that, The desktop pellet heater also includes a support assembly, which comprises: A support plate is disposed at the bottom of the outer shell and is fixedly connected to the outer shell; the discharge pipe is fixedly disposed on the support plate. Multiple support legs are provided, and the multiple support legs are spaced apart at the bottom of the support plate.

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