Combustor for firewood stove

Abstract

The combustor comprises an upper material bin and a lower material bin which are detachably connected, the lower material bin is connected to the side wall of the firewood furnace through a connecting structure, a material outlet is formed in the lower end of the lower material bin, a material door for controlling the material outlet to be opened or closed is arranged at the position of the material outlet, and a combustion chamber A is arranged below the material door. The combustion chamber A is communicated with a combustion chamber B of the firewood stove, a fire spraying opening is formed in the side, close to the firewood stove, of the combustion chamber A, an air inlet is formed in the side, away from the firewood stove, of the combustion chamber A, and a grate is obliquely arranged in the combustion chamber A. The combustor is connected to the side wall of the firewood furnace through the connecting structure, so that the air inlet of the combustor is located on the side of the firewood furnace, the position of the air inlet is low, and the firewood furnace has the advantages that firstly, when materials are blocked by the combustor, the phenomena of combustion returning and smoke returning are not prone to being caused; and 2, the requirements on the length of the smoke exhaust pipe and the sealing performance of the firewood furnace are reduced. And meanwhile, most furnace top operation area is released, and the functionality of the firewood furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wood-burning stoves, in particular to a burner for a wood-burning stove. Background Art

[0002] As people's living standards improve, more and more people choose to travel by car. As a common cooking utensil, wood stoves are also essential cooking utensil for self-driving tourists. In self-driving travel, wood stoves are used for cooking, barbecuing, boiling water, and heating at night. Wood stoves are easy to carry, and their combustion materials come from a wide range of sources. They can directly burn firewood and dead branches, etc. Therefore, wood stoves are favored by the majority of self-driving tourists. However, the existing wood stoves have a single function. These wood stoves only burn fuels such as firewood, straw, charcoal and dead branches, which cannot meet people's needs. With the rapid development of wood stove technology, the requirements for wood stoves have also increased. Through the technical improvement of wood stoves, a pellet burner is detachably connected to the existing wood stove, so that the wood stove and the pellet burner are combined. As a result, the wood stove can burn fuels such as firewood, straw, charcoal and dead branches, and can also burn pellet fuel through the burner. Pellet fuel is clean, easy to carry, and has low combustion emissions, which is conducive to environmental protection.

[0003] For example, a pellet burner disclosed in a Chinese utility model patent (publication number: CN115183227A) provides a pellet burner with smooth ventilation, full combustion of pellets, good combustion effect, and convenient operation of controlling the number of pellets entering the combustion chamber. A ventilation duct is provided in the baffle provided in the combustion chamber, and connecting plates A and B are provided on both sides of the outer side thereof. The teeth provided on the arc part of one side of connecting plates A and B are meshed with each other. Connecting plates A and B are connected to the handle, and connecting plates A, B and the baffle are connected with bolts. The handle can be easily adjusted to adjust the opening of the baffle. After the opening of the baffle is adjusted, the fixing pin in the handle abuts against the fixing teeth in the fixing plate, so as to keep the opening of the baffle unchanged. When the pellet burner is connected to a wood stove for use, the combustion effect of the pellet burner is good, which greatly improves the thermal effect of the wood stove, thereby saving time and pellets for cooking on the wood stove.

[0004] However, the particle burner disclosed in the above prior art has the following disadvantages:

[0005] ① The burner is installed on the top of the wood stove, so that the air inlet of the burner is located above the wood stove, and the air inlet is located at a higher position. When the air inlet of the burner is located at a higher position, there will be the following disadvantages: First, when the burner is stuck, it is easy to cause the burner to burn back and return smoke; second, the length of the exhaust pipe and the sealing of the wood stove are relatively high. When the smoke pipe is not long enough or the sealing of the wood stove is not good enough, the flame will burn up along the silo instead of spraying into the combustion chamber of the wood stove.

[0006] ② The burner is installed on the top of the wood stove, occupying most of the stove top operating area. In addition, the smoke exhaust pipe is usually designed at the other end of the stove top operating surface, occupying another small part of the stove top operating area, so that the wood stove only has the functions of heating and watching the fire, and cannot be used for setting up pots, cooking, grilling, boiling water, etc., which affects the functionality of the wood stove.

[0007] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0008] The purpose of the utility model is to provide a burner for a wood stove in view of the defects and shortcomings of the prior art, which is connected to the side wall of the wood stove through a connecting structure, thereby solving many problems caused by the burner being installed on the top of the wood stove.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A burner for a wood burning stove comprises an upper silo and a lower silo which are detachably connected, the lower silo being connected to the side wall of the wood burning stove via a connecting structure, the lower silo being in the shape of a funnel which is larger at the top and smaller at the bottom, a discharge port being provided at the lower end of the lower silo, a material door for controlling the opening or closing of the discharge port being provided at the discharge port, a combustion chamber A being provided below the material door, the combustion chamber A being connected to a combustion chamber B of the wood burning stove, a flame ejection port being provided on a side of the combustion chamber A close to the wood burning stove, an air inlet being provided on a side of the combustion chamber A away from the wood burning stove, and a grate being provided obliquely in the combustion chamber A.

[0011] Furthermore, the upper end of the grate is hinged to the lower material bin, the lower end of the grate is placed on the lower end of the flame outlet and inserted into the combustion chamber B of the wood-fired stove, and an adjusting bolt is abutted at the bottom of the grate, through which the inclination angle of the grate in the combustion chamber A can be adjusted.

[0012] Furthermore, a receiving portion for receiving granular material extends from the lower end of the grate.

[0013] Furthermore, the flame outlet is provided with an angle-adjustable guide plate, the upper end of the guide plate is hinged to the lower hopper, and the lower end of the guide plate is inserted into the combustion chamber B. The flame spraying angle of the burner can be adjusted by adjusting the inclination angle of the guide plate.

[0014] Furthermore, the connection structure includes a mounting frame, and the mounting frame is connected to the crater. A hanging ear is arranged on the mounting frame, and the hanging ear has a hook portion, and the hook portion is arranged downward.

[0015] Furthermore, windshield strips are provided on both sides of the installation frame, and the windshield strips include a connecting portion and a windshield portion, the connecting portion and the windshield portion are arranged at right angles, the connecting portion is connected to the installation frame, and the windshield portion is in close fit with the side wall of the wood stove.

[0016] Furthermore, the connection structure also includes a mounting plate, and a material-blocking edge bent outward is provided on one side of the mounting plate close to the wood stove, and a material-blocking strip is provided at the lower end of the material-blocking edge, and the end of the material-blocking strip extends into the wood stove.

[0017] Furthermore, the connection structure also includes a connecting angle iron, the connecting angle iron is arranged at a right angle, and the mounting frame is mounted to the flame outlet of the burner through the connecting angle iron.

[0018] Furthermore, a sliding door is hinged at the front end of the material door, and the other end of the sliding door is hinged to a lower material bin, and the lower material bin is provided with a limit screw for limiting the opening angle of the sliding door.

[0019] Furthermore, a discharge slope is provided at the rear end of the material door.

[0020] After adopting the above structure, the utility model has the following beneficial effects:

[0021] ① The utility model discloses a burner for a wood-burning stove, comprising a detachably connected upper material bin and a lower material bin, wherein the lower material bin is connected to the side wall of the wood-burning stove via a connecting structure, so that the air inlet of the burner is located on the side of the wood-burning stove, thereby making the air inlet of the burner at a lower position. The lower position of the air inlet of the burner has two advantages: on the one hand, when the burner is stuck, the burner is not prone to back-burning and back-smoking; on the other hand, it reduces the requirements for the length of the exhaust pipe and the sealing of the wood-burning stove.

[0022] ② The utility model discloses a burner for a wood-burning stove, wherein the burner is installed on the side wall of the wood-burning stove, freeing up most of the stove top operating area, so that the wood-burning stove can be used for heating and fire watching as well as for setting up pots, cooking, grilling or boiling water, thereby increasing the functionality of the wood-burning stove.

[0023] ③ The utility model discloses a burner for a wood-burning stove, wherein a grate is tilted in the combustion chamber A, and an adjusting bolt is abutted below the grate. The adjusting bolt can be used to adjust the inclination angle of the grate in the combustion chamber A, thereby adjusting the amount of pellets entering the combustion chamber A. This adjustment method makes it convenient to adjust the feed, and can well control the amount of pellets burned, thereby reducing unnecessary waste. A flame jet is provided on the side of the combustion chamber A close to the wood-burning stove, and an air inlet is provided on the side of the combustion chamber A away from the wood-burning stove. This structural design allows air to flow smoothly in the combustion chamber A, thereby increasing the oxygen content in the combustion chamber A, making the combustion of pellets more complete, and improving the combustion efficiency of the burner, thereby improving the thermal efficiency of the wood-burning stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present utility model, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a sectional view of the overall structure of the utility model;

[0027] Figure 3 The utility model Figure 2 A schematic diagram of the structure at A;

[0028] Figure 4 This is a schematic diagram of the coordination between the lower bin and the connection structure of the utility model. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the coordination between the lower bin and the connection structure of the utility model. Figure 2 ;

[0030] Figure 6 This is a schematic diagram of the coordination between the lower bin and the connection structure of the utility model. Figure 3 ;

[0031] Figure 7 This is a schematic diagram of the connection structure of the utility model Figure 1 ;

[0032] Figure 8 This is a schematic diagram of the connection structure of the utility model Figure 2 ;

[0033] Fig. 9 It is a schematic diagram of the overall structure of the utility model and the installation coordination of the wood stove.

[0034] Figures 1 to 9 The bid number is:

[0035] 1. Upper silo; 2. Lower silo; 21. Discharge port; 22. Material door; 221. Discharge slope; 23. Sliding door; 24. Limit screw; 3. Connection structure; 31. Mounting frame; 311. Hanging ear; 3111. Hook; 312. Wind shield; 3121. Connecting part; 3122. Wind shield; 3123. Waist-shaped hole; 32. Mounting plate; 321. Material blocking edge; 3211. Material blocking strip; 33. Connecting angle iron; 4. Combustion chamber A; 41. Flame nozzle; 411. Guide plate; 42. Air inlet; 5. Grate; 51. Adjusting bolt; 52. Attachment; 6. Ash collecting drawer; 61. Handle; 100. Wood stove; 101. Combustion chamber B. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly defined and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this utility model are only for illustrative purposes and do not represent the only implementation method.

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] like Figures 1 to 9As shown, a burner for a wood burning stove comprises an upper silo 1 and a lower silo 2 which are detachably connected, the lower silo 2 being connected to the side wall of the wood burning stove 100 via a connecting structure 3, the lower silo 2 being in a funnel shape with a larger upper portion and a smaller lower portion, a discharge port 21 being provided at the lower end of the lower silo 2, a material door 22 for controlling the opening or closing of the discharge port 21 being provided at the discharge port 21, a combustion chamber A4 being provided below the material door 22, the combustion chamber A4 being connected to the combustion chamber B101 of the wood burning stove 100, a flame vent 41 being provided on a side of the combustion chamber A4 close to the wood burning stove 100, an air inlet 42 being provided on a side of the combustion chamber A4 away from the wood burning stove 100, and a grate 5 being obliquely provided in the combustion chamber A4. The upper end of the grate 5 is hinged to the lower material bin 2, the lower end of the grate 5 is placed on the lower end of the flame vent 41 and inserted into the combustion chamber B101 of the wood stove 100, and an adjusting bolt 51 is abutted at the bottom of the grate 5, and the inclination angle of the grate 5 in the combustion chamber A4 can be adjusted by the adjusting bolt 51. The lower end of the grate 5 is extended with a receiving portion 52 for receiving granular materials.

[0044] Based on the above embodiments, the present invention aims to provide a burner for a wood-fired stove, comprising a detachably connected upper bin 1 and a lower bin 2, wherein the lower bin 2 is connected to the side wall of the wood-fired stove 100 via a connecting structure 3. Fig. 9 As shown, the air inlet 42 of the burner is located on the side of the wood stove 100, so that the air inlet 42 of the burner is located at a lower position. The lower position of the air inlet 42 of the burner has two advantages: on the one hand, when the burner is stuck, the burner is not easy to cause backburning and backsmoke; on the other hand, it reduces the requirements for the length of the smoke exhaust pipe and the sealing of the wood stove 100. The burner is installed on the side wall of the wood stove 100, releasing most of the operation area of ​​the stove top, so that the wood stove 100 can be used for heating and watching the fire, as well as setting up pots, cooking, grilling or boiling water, etc., which increases the functionality of the wood stove 100. The grate 5 is tilted in the combustion chamber A4, and the lower part of the grate 5 is abutted with an adjusting bolt 51. The adjusting bolt 51 can be used to adjust the inclination angle of the grate 5 in the combustion chamber A4, thereby adjusting the amount of pellets entering the combustion chamber A4. This adjustment method makes the feeding adjustment convenient, and can well control the combustion amount of pellets, reducing unnecessary waste. The combustion chamber A4 is provided with a flame outlet 41 on one side close to the wood stove 100, and an air inlet 42 on one side away from the wood stove 100. This structural design allows air to flow smoothly in the combustion chamber A4. Figure 2As shown, the oxygen content of the combustion chamber A4 is increased, so that the pellets burn more completely, the combustion efficiency of the burner is improved, and the thermal efficiency of the wood stove 100 is improved. When working, the burner is connected to the side wall of the wood stove 100 through the connecting structure 3, so that the combustion chamber A4 of the burner is connected with the combustion chamber B101 of the wood stove 100, and the pellets automatically and orderly fall into the combustion chamber A4 and burn completely in the combustion chamber A4. The flame is ejected into the combustion chamber B101 of the wood stove 100 through the flame nozzle 41. The inclination angle of the grate 5 can be adjusted by rotating the adjusting bolt 51, as shown in FIG. Figure 3 , Figure 6 As shown, the amount of pellets entering the combustion chamber A4 is adjusted. This adjustment method makes feeding adjustment convenient, and can well control the combustion amount of pellets, reducing unnecessary waste. During adjustment, by tightening the adjusting bolt 51, the grate 5 is supported and driven to tilt upward, so that the inclination angle of the grate 5 becomes larger, and then the speed of pellet feeding is adjusted. The higher the grate 5 is supported by the adjusting bolt 51, the slower the feeding speed, and the longer the combustion time of a warehouse of pellets. By adjusting the inclination angle of the grate 5 in the combustion chamber A4, long-term combustion can be achieved when heating at night. In a further embodiment, the grate 5 is fixed by two screws above as axle pins, which is easy to maintain and replace the grate 5. When it is found that the pellets are stuck, a tool can be inserted from the air inlet 42 of the burner to gently shake the grate 5 to loosen and slide the stuck pellets. This operation is simple and easy, without the need for complex tools or techniques, and greatly reduces the difficulty of use and maintenance costs. The lower end of the grate 5 is extended with a receiving portion 52 for receiving the pellets, ensuring that the pellets remain stable during the combustion process. In a further embodiment, the receiving portion 52 is matched with the grate 5 at an angle, and the angle between the receiving portion 52 and the grate 5 is an obtuse angle. The obtuse angle design helps to slow down the flow speed of the pellets, and the pellets are more easily received by the receiving portion 52. The side of the combustion chamber A4 close to the wood stove 100 is provided with a flame vent 41, and the side of the combustion chamber A4 away from the wood stove 100 is provided with an air inlet 42. This structural design allows air to flow smoothly in the combustion chamber A4, increases the oxygen content of the combustion chamber A4, makes the pellets burn more fully, improves the combustion effect of the burner, and further improves the thermal efficiency of the wood stove 100. In a further embodiment, the grate 5 is made of special high-temperature stainless steel, which can make the grate 5 resistant to high temperatures and not easy to deform.

[0045] As another preferred embodiment of the utility model, the flame outlet 41 is provided with an angle-adjustable guide plate 411, the upper end of the guide plate 411 is hinged to the lower bin 2, and the lower end of the guide plate 411 is inserted into the combustion chamber B101. The flame spraying angle of the burner can be adjusted by adjusting the inclination angle of the guide plate 411. The connection structure 3 also includes a mounting plate 32, and a material-blocking edge 321 bent outward is provided on one side of the mounting plate 32 close to the wood stove 100, and a material-blocking strip 3211 is provided at the lower end of the material-blocking edge 321, and the end of the material-blocking strip 3211 extends into the wood stove 100. In this embodiment, as Figure 3 , Figure 4 As shown, the setting of the guide plate 411 is used to control the spray angle of the flame. During operation, by using a tool to support the lower end surface of the guide plate 411, the guide plate 411 is tilted upward, thereby increasing the angle between the guide plate 411 and the mounting frame 31, and the higher the spray angle of the flame is; by using a tool to support the upper end surface of the guide plate 411, the guide plate 411 is dropped downward, thereby decreasing the angle between the guide plate 411 and the mounting frame 31, and the lower the spray angle of the flame is. The setting of the guide plate 411 allows the flame to go downward and then upward after entering the combustion chamber B101 of the wood stove 100. The overall shape of the flame is similar to a "U" shape or a "V" shape, which avoids the problem that the flame directly burns upward after entering the combustion chamber B101 of the wood stove 100, and cannot be fully pulled horizontally in the combustion chamber B101 of the wood stove 100, resulting in poor fire viewing effect. The upper end of the guide plate 411 is hinged to the lower bin 2, and a damper is provided at the hinge between the guide plate 411 and the lower bin 2, so that the guide plate 411 can be fixed at any tilt angle. Figure 4 , Figure 8 As shown, the setting of the material retaining edge 321 and the material retaining strip 3211 prevents the pellets from rolling into the combustion chamber B101 of the wood stove 100, and also plays a role in guiding the flame spray angle, so that the flame is sprayed within a certain angle, and prevents the flame from spreading too much and affecting the fire viewing effect. The material retaining edge 321 and the material retaining strip 3211 are mainly used to control the flame spray angle in the left and right directions, and the guide plate 411 is mainly used to control the flame spray angle in the up and down directions. The material retaining edge 321, the material retaining strip 3211 and the guide plate 411 work together to make the wood stove 100 have a better fire viewing effect.

[0046] As another preferred embodiment of the present invention, the connection structure 3 includes a mounting frame 31, and the mounting frame 31 is connected to the flame vent 41. The mounting frame 31 is provided with a lug 311, and the lug 311 has a hook 3111, and the hook 3111 is arranged downward. Wind shields 312 are arranged on both sides of the mounting frame 31, and the wind shield 312 includes a connecting portion 3121 and a wind shield 3122, and the connecting portion 3121 and the wind shield 3122 are arranged at right angles, and the connecting portion 3121 is connected to the mounting frame 31, and the wind shield 3122 is fitted with the side wall of the wood stove 100. The connection structure 3 also includes a connecting angle iron 33, and the connecting angle iron 33 is arranged at a right angle, and the mounting frame 31 is installed to the flame vent 41 of the burner through the connecting angle iron 33. In this embodiment, Figure 4 , Figure 7 and Figure 8 As shown, in a further embodiment, the side wall of the wood stove 100 is provided with a slot that is plugged with the hanging ear. The burner can be conveniently installed on the wood stove 100 by plugging the hanging ear 311 with the slot. When the burner is not needed, the burner is lifted up to make the hanging ear 311 disengage from the slot to conveniently remove the burner from the wood stove 100, and the burner can be removed without the help of any tools. This is convenient and labor-saving. After the burner is removed from the wood stove 100, it is convenient to carry and store the wood stove 100 and the burner. The hanging ear 311 has a hook 3111, and the hook 3111 is arranged downward. The size of the opening formed between the hook 3111 and the mounting frame 31 becomes smaller from bottom to top. Through the design of this structure, the installed burner fits better with the wood stove 100, and the installation gap is smaller. After the burner is installed in place, the position of the windshield strip 312 is fixed, and the position of the windshield strip 312 can be adjusted through the waist-shaped hole 3123, so that the sealing of the connection between the burner and the wood stove 100 is better, and then the air is allowed to enter the combustion chamber A4 only from the air inlet 42 as much as possible, so that the flame is stretched horizontally to the combustion chamber B101 of the wood stove 100, and the fire-watching effect is improved. The connecting structure 3 also includes a connecting angle iron 33, and the connecting angle iron 33 is set at a right angle. The mounting frame 31 is installed to the flame-spraying port 41 of the burner through the connecting angle iron 33. The setting of the connecting angle iron 33 makes the connection between the connecting structure 3 and the burner reliable. The connecting angle iron 33 is set at a right angle and fits the connection between the mounting frame 31 and the burner, reducing the gap between the connecting structure 3 and the burner and improving the sealing.

[0047] As another preferred embodiment of the present invention, the front end of the material door 22 is hinged with a sliding door 23, and the other end of the sliding door 23 is hinged to the lower material bin 2. The lower material bin 2 is provided with a limit screw 24 for limiting the opening angle of the sliding door 23. The rear end of the material door 22 is provided with a discharge slope 221. Figure 4 , Figure 6 As shown, the hinged structure can facilitate the opening or closing of the material door 22. When it is not necessary to burn pellets, for example, during the day, the user adds firewood to the wood stove 100 for combustion. At this time, the sliding door 23 can be pushed down, and the material door 22 moves in the direction of closing the discharge port 21 under the linkage of the sliding door 23 until the discharge port 21 is closed, so that the pellets in the silo will not fall into the combustion chamber A4. When it is necessary to burn pellets, for example, at night, the user does not want to get up at night to add firewood. At this time, the sliding door 23 can be pulled up, and the material door 22 moves in the direction of opening the discharge port 21 under the linkage of the sliding door 23 until the material door 22 is opened. The pellets in the silo automatically and orderly fall into the combustion chamber A4 for combustion under the action of their own gravity, the guiding action of the funnel shape of the lower silo 2, and the guiding action of the discharge slope 221, which solves the problem of combustion endurance. The user does not need to get up to add pellets within six to eight hours, which improves the convenience of use. The lower bin 2 is provided with a limit screw 24 for limiting the opening angle of the sliding door 23. The setting of the limit screw 24 prevents the material door 22 from falling out of the lower bin 2 after being over-opened. The rear end of the material door 22 is provided with a discharge slope 221, such as Figure 2 As shown, the discharge slope 221 plays a guiding role, and the granular material is automatically and orderly fed into the combustion chamber A4 under the guidance of the discharge slope. In a further embodiment, an ash receiving drawer 6 is provided below the combustion chamber A4, and a handle 61 is provided on the left side of the ash receiving drawer 6. Figure 1 , Figure 3 As shown, the small particles, debris and ashes produced after burning in the granular material all fall into the ash receiving drawer 6 after falling from the mesh of the grate 5. By setting a pullable ash receiving drawer 6 at the bottom, it is convenient to quickly collect the ashes after burning. In the later stage, it is only necessary to pull out the ash receiving drawer 6 from the bottom and pour it out. Therefore, the setting of this structure can automatically collect and quickly clean up the ashes and small particles and debris in the granular material that have been burned out, and the operation is convenient. A handle 61 is set on the left side of the ash receiving drawer 6. The design of the handle 61 is convenient for pulling out the ash receiving drawer 6, and also avoids scalding the hands when pulling out the ash receiving drawer 6.

[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present utility model.

Claims

1. A burner for a wood-burning stove, characterized in that: The invention comprises an upper material bin (1) and a lower material bin (2) which are detachably connected, the lower material bin (2) being connected to the side wall of a wood-burning stove (100) via a connecting structure (3), the lower material bin (2) being arranged in a funnel shape with a larger upper portion and a smaller lower portion, a discharge port (21) being arranged at the lower end of the lower material bin (2), a material door (22) for controlling the opening or closing of the discharge port (21) being arranged at the discharge port (21), a combustion chamber A (4) being arranged below the material door (22), the combustion chamber A (4) being connected to a combustion chamber B (101) of the wood-burning stove (100), a flame ejection port (41) being arranged on a side of the combustion chamber A (4) close to the wood-burning stove (100), an air inlet (42) being arranged on a side of the combustion chamber A (4) away from the wood-burning stove (100), and a furnace grate (5) being arranged obliquely in the combustion chamber A (4).

2. A burner for a wood-fired stove according to claim 1, characterized in that: The upper end of the grate (5) is hinged to the lower material bin (2), the lower end of the grate (5) is placed on the lower end of the flame vent (41) and inserted into the combustion chamber B (101) of the wood-fired stove (100), and an adjusting bolt (51) is abutted at the bottom of the grate (5), and the inclination angle of the grate (5) in the combustion chamber A (4) can be adjusted by the adjusting bolt (51).

3. A burner for a wood-fired stove according to claim 2, characterized in that: A receiving portion (52) for receiving granular material extends from the lower end of the grate (5).

4. A burner for a wood-fired stove according to claim 1, characterized in that: The flame-spraying port (41) is provided with an angle-adjustable guide plate (411), the upper end of the guide plate (411) is hinged to the lower material bin (2), and the lower end of the guide plate (411) is inserted into the combustion chamber B (101), and the flame-spraying angle of the burner can be adjusted by adjusting the inclination angle of the guide plate (411).

5. A burner for a wood-fired stove according to claim 1, characterized in that: The connection structure (3) comprises a mounting frame (31), the mounting frame (31) being connected to the flame vent (41), the mounting frame (31) being provided with a hanging ear (311), the hanging ear (311) having a hook portion (3111), and the hook portion (3111) being arranged downward.

6. A burner for a wood-fired stove according to claim 5, characterized in that: Wind shield strips (312) are provided on both left and right sides of the installation frame (31); the wind shield strip (312) comprises a connecting portion (3121) and a wind shield portion (3122); the connecting portion (3121) and the wind shield portion (3122) are arranged at a right angle; the connecting portion (3121) is connected to the installation frame (31); and the wind shield portion (3122) is fitted with a side wall of the wood stove (100).

7. A burner for a wood-fired stove according to claim 1, characterized in that: The connection structure (3) further comprises a mounting plate (32), a side of the mounting plate (32) close to the wood stove (100) being provided with a material blocking edge (321) bent outward, a material blocking strip (3211) being provided at the lower end of the material blocking edge (321), and an end of the material blocking strip (3211) extending into the wood stove (100).

8. A burner for a wood-fired stove according to claim 5, characterized in that: The connection structure (3) further comprises a connection angle iron (33), wherein the connection angle iron (33) is arranged at a right angle, and the installation frame (31) is installed to the flame outlet (41) of the burner via the connection angle iron (33).

9. A burner for a wood-fired stove according to claim 1, characterized in that: A sliding door (23) is hingedly connected to the front end of the material door (22), and the other end of the sliding door (23) is hingedly connected to the lower material bin (2). The lower material bin (2) is provided with a limit screw (24) for limiting the opening angle of the sliding door (23).

10. A burner for a wood-fired stove according to claim 9, characterized in that: A discharge slope (221) is provided at the rear end of the material door (22).

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