Angle-adjustable grate for combustor of firewood stove

Abstract

The angle-adjustable grate for the combustor of the firewood stove comprises a grate body, the combustor is provided with a combustion chamber, the grate body is arranged in the combustion chamber, the upper end of the grate body is rotationally connected with the inner wall of the combustor, the lower end of the grate body is movably erected at a fire outlet of the combustion chamber, an adjusting screw is arranged on the combustor, and the angle-adjustable grate is arranged on the adjusting screw. The end of the adjusting screw extends into the combustor and abuts against the grate body in a matched mode, the inclination angle of the grate body in the combustor is controlled by rotating the adjusting screw, the discharging speed of the granular materials is controlled, and then the combustion duration of one bin of granular materials is controlled. When the fire grate is used, a user can easily stretch into the fire grate from the air inlet of the burner with a tool to slightly shake the fire grate body, so that clamped particles are loosened and slide down, the operation is simple and convenient, complicated tools or technologies are not needed, and the use difficulty and the maintenance cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace grates, in particular to an angle-adjustable furnace grate for a burner of a wood-fired stove. Background Art

[0002] At present, with the improvement of people's living standards, more and more people choose to travel by car. As a common cooking utensil, wood stove is also a necessary cooking utensil for self-driving tourists. In self-driving life, wood stove is used for cooking, barbecue, boiling water and tea, and heating at night. Wood stove uses firewood, straw, charcoal, dead branches and other fuels to burn to provide heat for heating or cooking.

[0003] The wood stove has a simple structure and is easy to carry. The combustible materials come from a wide range of sources, including firewood, straw, charcoal, dead branches, etc., which can all be directly burned and used. However, burning only firewood, straw, charcoal, dead branches and other fuels can no longer meet people's needs. With the rapid development of wood stove technology, the requirements for wood stoves are also increasing. Through technical improvements to wood stoves, the existing wood stoves are detachably connected to pellet burners. In this way, the wood stove and the pellet burner are combined, so that the wood stove can burn firewood, straw, charcoal, dead branches and other fuels, and can burn pellet fuel. Pellet fuel is clean, easy to carry, and has low combustion emissions, which is beneficial to environmental protection.

[0004] A burner is a device that uses fuel combustion to generate heat energy. Its basic structure includes a combustion chamber and a silo. The silo is connected to the combustion chamber to provide fuel to the combustion chamber. The combustion chamber of the burner is connected to the combustion chamber of the wood stove. During the day, the wood stove is used to burn firewood and other fuels. At night, the combustion chamber of the burner is connected to the combustion chamber of the wood stove to burn pellets to achieve continuous heating. In the burner, the grate is a very important component. It is located below the combustion chamber and is usually made of metal material and can withstand high temperature and high pressure environments. The main function of the grate is to support the fuel and ash, and ensure that the fuel is evenly distributed, thereby achieving efficient combustion. In addition, the grate can also play a ventilation role, helping air circulation in the combustion chamber, thereby further improving combustion efficiency. The pellets are spread all over the grate under the action of the tilt angle and their own gravity until they stop at the bottom edge of the grate. The previous pellets burn into ash and leak out, and new pellets slide down to be replenished. The conventional grate is fixedly connected to the burner and the feeding speed of the pellets cannot be controlled, that is, the burning time of a warehouse of pellets cannot be controlled. When the wood stove is used for heating at night, due to the long night time, if the pellet feeding speed is too fast, long-term combustion cannot be achieved, affecting the user's heating. In addition, the pellets are prone to jamming during the combustion process, leading to flameout problems, so it is necessary to improve it. Utility Model Content

[0005] The purpose of the utility model is to address the defects and shortcomings of the prior art and to provide an angle-adjustable grate for a burner of a wood-fired stove, which has a simple and reasonable structure and is easy to operate. The inclination angle of the grate body in the combustion chamber is adjusted by adjusting the screw to control the feeding speed of the pellets, thereby controlling the combustion time of a bin of pellets.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses an angle-adjustable grate for a burner of a wood-fired stove, comprising a grate body, the burner having a combustion chamber, the grate body being arranged in the combustion chamber, the upper end of the grate body being rotatably connected to the inner wall of the burner, the lower end of the grate body being movably mounted on the fire outlet of the combustion chamber, an adjusting screw being arranged on the burner, the end of the adjusting screw extending into the interior of the burner and abutting against the grate body, and the inclination angle of the grate body in the combustion chamber being controlled by rotating the adjusting screw.

[0008] Furthermore, the grate body is provided with a plurality of holes A for leaking ash.

[0009] Furthermore, a receiving portion for receiving fuel extends from the lower end of the grate body.

[0010] Furthermore, the receiving portion and the grate body are matched at an angle, and the angle between the receiving portion and the grate body is an obtuse angle.

[0011] Furthermore, an upwardly tilted hook portion extends from the end of the receiving portion.

[0012] Furthermore, the receiving portion is provided with a plurality of notched grooves arranged in parallel.

[0013] Furthermore, the receiving portion is also provided with a plurality of holes B for leaking ash.

[0014] Furthermore, the holes B and the notch grooves are arranged alternately.

[0015] Furthermore, the adjusting screw is located at the lower side of the grate body and close to the upper end of the grate body.

[0016] Furthermore, connecting lugs are provided on both sides of the upper end of the grate body, and screws cooperating with the connecting lugs are provided on the inner wall of the burner. The grate body is rotatably connected to the burner by cooperating with the connecting lugs and the screws.

[0017] The beneficial effects of the utility model are as follows: the angle-adjustable grate for the burner of a wood-fired stove described in the utility model controls the feeding speed of pellets by adjusting the screws to support the grate body and adjust the inclination angle of the grate body in the burner, thereby controlling the burning time of a bin of pellets; connecting lugs are provided on both sides of the upper end of the grate body, and screws that cooperate with the connecting lugs are provided on the inner wall of the burner; the grate body is rotatably connected to the burner through the cooperation of the connecting lugs and the screws, so that the inclination angle of the grate body can be easily adjusted; since the grate body is movable, when pellets are found to be stuck, the user can easily reach in with a tool from the air inlet of the burner and gently shake the grate body to loosen and slide the stuck pellets; this operation is simple and easy, does not require complicated tools or techniques, and greatly reduces the difficulty of use and maintenance costs.

[0018] During operation, by tightening the adjusting screw, the grate body is supported and driven to tilt upward, so that the inclination angle of the grate body becomes larger, thereby adjusting the feeding speed of the pellets. The higher the grate body is pushed up by the adjusting screw, the slower the feeding speed and the longer the combustion time of a bin of pellets. By adjusting the inclination angle of the grate body in the combustion chamber, long-lasting combustion can be achieved when heating at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in the combustion chamber at the first viewing angle;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in the combustion chamber at a second viewing angle;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model from the third viewing angle in the combustion chamber;

[0022] Figure 4 It is a structural schematic diagram of the grate body.

[0023] Figure 1-4 In: 1. grate body; 2. burner; 3. screw; 4. adjusting screw; 5. air inlet; 6. hook part; 7. connecting lug; 8. through hole; 9. hole A; 10. connecting rod; 11. overlapping part; 12. combustion chamber; 13. fire outlet; 14. receiving part; 15. notch groove; 16. hole B. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-4The angle-adjustable grate for a burner of a wood-fired stove shown in the figure comprises a grate body 1, the burner 2 having a combustion chamber 12, the grate body 1 being arranged in the combustion chamber 12 for receiving fuel and leaking ash, specifically, the fuel is granular material, the upper end of the grate body 1 is rotatably connected to the inner wall of the burner 2, the lower end of the grate body 1 is movably mounted on a fire outlet 13 of the combustion chamber 12, specifically, the fire outlet 13 is provided with an overlapping portion 11 for overlapping the grate body 1, the burner 2 is provided with an adjusting screw 4, the end of the adjusting screw 4 extends into the interior of the burner 2 and abuts against the grate body 1, and the inclination angle of the grate body 1 in the combustion chamber 12 is controlled by rotating the adjusting screw 4.

[0026] See also Figure 1 The burner 2 is provided with a connecting rod 10 which cooperates with the adjusting screw 4, and the two ends of the connecting rod 10 are fixedly connected to the inner walls of the burner 2 on both sides, and the ends of the adjusting screws 4 pass through the connecting rod 10 and extend into the interior of the burner 2 and cooperate with the grate body 1. During operation, by tightening the adjusting screws 4, the grate body 1 is supported and driven to tilt upward, so that the inclination angle of the grate body 1 becomes larger, thereby adjusting the speed of pellet feeding. Specifically, the higher the grate body 1 is pushed up by the hand-screwed screws 3, the slower the feeding speed, and the longer the combustion time of a warehouse of pellets. By adjusting the inclination angle of the grate body 1 in the combustion chamber 12, long-lasting combustion can be achieved when heating at night.

[0027] The inclined design of the grate body 1 helps the pellets to spread all over the grate body 1 under the inclination angle and its own gravity, and the previous pellets are burned into ash and leak out, and new pellets are slid down to be replenished. Preferably, in this embodiment, a plurality of holes A9 for leaking ash are opened on the grate body 1. Specifically, these holes A9 are not only evenly distributed, but also of moderate size, so as to ensure that the pellets can be fully burned during the combustion process, and after the pellets are burned into ash, the ash can be smoothly leaked from the holes A9, avoiding the accumulation of ash inside the grate body 1 and affecting the use.

[0028] In actual use, the pellets are prone to getting stuck. Since the grate body 1 is movable, when the pellets are found to be stuck, the user can easily use a tool to reach in from the air inlet 5 of the burner 2 and gently shake the grate body 1 to loosen the stuck pellets and let them slide off. This operation is simple and easy, does not require complicated tools or techniques, and greatly reduces the difficulty of use and maintenance costs.

[0029] Preferably, in this embodiment, a receiving portion 14 for receiving the fuel extends from the lower end of the grate body 1 to ensure that the fuel remains stable during the combustion process.

[0030] Preferably, in this embodiment, refer to Figure 2The receiving portion 14 and the grate body 1 are matched at an angle, and the angle between the receiving portion 14 and the grate body 1 is an obtuse angle. The obtuse angle design helps to slow down the flow speed of the fuel, and the fuel is more easily received by the receiving portion 14.

[0031] Preferably, in this embodiment, refer to Figure 4 The end of the receiving portion 14 is extended with an upwardly tilted hook portion 6, and the hook portion 6 is a curved hook-shaped structure for capturing fuel.

[0032] Preferably, in this embodiment, the receiving portion 14 is provided with a plurality of notch grooves 15 arranged in parallel. The design of the notch grooves 15 is conducive to the uniform distribution and ventilation of the fuel, so that the fuel can be more fully in contact with the air, thereby improving the combustion efficiency.

[0033] Preferably, in this embodiment, the receiving portion 14 is further provided with a plurality of holes B16 for leaking ash. Specifically, the holes B16 and the notch grooves 15 are staggered, which can ensure the ventilation and combustion effect of the fuel during the combustion process and enable the ash to be discharged smoothly to avoid clogging the grate.

[0034] Preferably, in this embodiment, the adjusting screw 4 is located on the lower side of the grate body 1, which makes it easier to adjust the inclination angle of the grate body 1, and the adjusting screw 4 is close to the upper end of the grate body 1, so that the adjusting screw 4 can be more easily against the grate body 1, and the length of the adjusting screw 4 can be set shorter accordingly to save material costs.

[0035] Preferably, in this embodiment, connecting lugs 7 are provided on both sides of the upper end of the grate body 1, and screws 3 cooperating with the connecting lugs 7 are provided on the inner wall of the burner 2. The grate body 1 is rotatably connected to the burner 2 by cooperating with the connecting lugs 7 and the screws 3. Specifically, the connecting lug 7 is provided with a through hole 8 for the screw 3 to pass through, and the diameter of the through hole 8 is larger than the diameter of the screw rod of the screw 3, so that the connecting lug 7 can rotate relative to the screw 3, so that the inclination angle of the grate body 1 can be easily adjusted.

[0036] Preferably, in this embodiment, the grate body 1 is made of stainless steel, which not only has excellent corrosion resistance, but also can maintain stable physical and chemical properties in a high temperature environment. Specifically, the grate body 1 is made of 310S special high-temperature stainless steel, which is a highly alloyed austenitic stainless steel with high high temperature resistance, and can maintain excellent corrosion resistance and mechanical properties in a high temperature or even oxidizing environment. This stainless steel material can still maintain stable organization and excellent mechanical properties in an environment with a continuous use temperature of up to 1150°C, ensuring the long-term stable operation of the grate body 1 in a high temperature environment.

[0037] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An angle-adjustable grate for a burner of a wood-fired stove, comprising a grate body (1), the burner (2) having a combustion chamber (12), the grate body (1) being arranged in the combustion chamber (12), characterized in that: The upper end of the grate body (1) is rotatably connected to the inner wall of the burner (2), and the lower end of the grate body (1) is movably mounted on the fire outlet (13) of the combustion chamber (12). The burner (2) is provided with an adjusting screw (4), and the end of the adjusting screw (4) extends into the interior of the burner (2) and abuts against the grate body (1). By rotating the adjusting screw (4), the inclination angle of the grate body (1) in the combustion chamber (12) is controlled.

2. The angle-adjustable grate for a burner of a wood-fired stove according to claim 1, characterized in that: The grate body (1) is provided with a plurality of holes A (9) for leaking ash.

3. The angle-adjustable grate for a burner of a wood-fired stove according to claim 1, characterized in that: A receiving portion (14) for receiving fuel extends from the lower end of the grate body (1).

4. The angle-adjustable grate for a burner of a wood-fired stove according to claim 3, characterized in that: The receiving portion (14) and the grate body (1) are matched at an angle, and the angle between the receiving portion (14) and the grate body (1) is an obtuse angle.

5. An angle-adjustable grate for a burner of a wood-fired stove according to claim 3 or 4, characterized in that: An upwardly tilted hook portion (6) extends from the end of the receiving portion (14).

6. The angle-adjustable grate for a burner of a wood-fired stove according to claim 3, characterized in that: The receiving portion (14) is provided with a plurality of notched grooves (15) arranged in parallel.

7. The angle-adjustable grate for a burner of a wood-fired stove according to claim 6, characterized in that: The receiving portion (14) is also provided with a plurality of holes B (16) for leaking ash.

8. The angle-adjustable grate for a burner of a wood-fired stove according to claim 7, characterized in that: The holes B (16) and the notched grooves (15) are arranged in a staggered manner.

9. The angle-adjustable grate for a burner of a wood-fired stove according to claim 1, characterized in that: The adjusting screw (4) is located on the lower side of the grate body (1) and close to the upper end of the grate body (1).

10. The angle-adjustable grate for a burner of a wood-fired stove according to claim 1, characterized in that: Both sides of the upper end of the grate body (1) are provided with connecting lugs (7), the inner wall of the burner (2) is provided with screws (3) that cooperate with the connecting lugs (7), and the grate body (1) is rotatably connected to the burner (2) by the connecting lugs (7) cooperating with the screws (3).

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