Firewood stove
By introducing sufficient combustion air into the wood stove and using heat insulation plates to reduce heat conduction, the problem of high temperature at the bottom of the wood stove is solved, and safety and heating efficiency are improved.
Patent Information
- Application Number
- CN202421169715.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The high temperature at the bottom of the existing wood stove causes heat to spread downward, poses safety risks and is inefficient in energy efficiency.
A wood fire stove is designed, including a base, fire plate, furnace body and thermal insulation plate, which introduces external air through air inlets, through holes and air outlets are designed to ensure sufficient combustion air, and the thermal insulation plate reduces heat conduction downward, The fire ring improves heating efficiency.
It effectively reduces the furnace bottom temperature, reduces heat diffusion, improves safety performance and heating efficiency, avoids ignition of flammable items, and improves energy utilization.
Smart Images
Figure CN222278653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combustion furnaces, in particular to a wood-burning furnace. Background Art
[0002] A wood stove is a traditional cooking and heating device that uses wood as fuel. It is still popular in areas with abundant wood resources or in outdoor activities. However, the existing wood stoves have a relatively high bottom temperature. The high bottom temperature of the wood stove may cause flammable items around the stove to catch fire, especially if the stove is placed near dry materials. There is a certain safety risk. The heat diffuses downward. Since the heat will be dissipated to places that do not need to be heated, it will also cause energy waste and lead to low energy efficiency. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a wood-burning stove that can reduce the diffusion of heat toward the bottom of the wood-burning stove, reduce heat source waste, lower the temperature of the stove bottom, and improve safety performance.
[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:
[0005] A wood-burning stove comprises: a base provided with a accommodating cavity, the accommodating cavity opening upwards, the base provided with an air inlet hole connected with the accommodating cavity so that external air can enter the accommodating cavity from the air inlet hole; a fire pan supported on the base and provided with a vertical through hole so that air entering the accommodating cavity from the air inlet hole can enter the space above the fire pan through the through hole; a stove body connected to the fire pan and forming a combustion space with an upper opening with the fire pan; a heat insulation board installed on the base and used to reduce the heat of the heat insulation board facing the stove body from being transferred to the side of the heat insulation board facing away from the stove body.
[0006] In one embodiment, the furnace body includes an inner tube and an outer tube, the inner tube is connected to the outer tube and forms a ventilation cavity with an opening facing downward, an air outlet is provided on the edge of the fire tray corresponding to the ventilation cavity, and an air outlet is provided on the peripheral wall of the upper end of the inner tube; the air flowing out of the air outlet will drive the flame to surge upward, so that the flame can contact more objects to be heated, thereby improving the heating efficiency.
[0007] In one of the embodiments, the upper end of the inner tube is provided with an outwardly extending outer skirt, the outer peripheral edge of the outer skirt is provided with an upwardly extending connecting fold, the upper end of the outer tube is sleeved on the connecting fold and fixedly connected to the connecting fold; the connecting fold has a certain height, which can play a better positioning effect on the sleeve of the outer tube.
[0008] In one of the embodiments, the fire tray is provided with a positioning convex ring for positioning the bottom of the inner tube. The positioning convex ring plays a certain positioning role for the inner tube, thereby improving the stability of the structure.
[0009] In one of the embodiments, the outer periphery of the fire pan is provided with a downwardly extending enclosure, the bottom of the outer cylinder is sleeved on the outer periphery of the enclosure and is connected and fixed to the enclosure; the upper end of the base is against the bottom surface of the fire pan and embedded in the space enclosed by the enclosure; the enclosure plays a good positioning role for the sleeve of the bottom of the outer cylinder, and the enclosure plays a certain limiting positioning role for the upper end of the base.
[0010] In one of the embodiments, it also includes a fire gathering ring installed on the upper end of the furnace body and surrounding the opening of the accommodating cavity. The fire gathering ring has a gathering portion that gathers upward to prevent fire from escaping from the edge, thereby making the heating efficiency higher.
[0011] In one of the embodiments, a supporting portion extending outward is provided at the bottom of the fire gathering ring, and the supporting portion is supported by the extended skirt.
[0012] In one of the embodiments, the heat insulation board is fixedly mounted on the accommodating cavity and divides the accommodating cavity into an upper cavity and a lower cavity, and the air inlet hole is arranged in the upper cavity.
[0013] In one of the embodiments, the heat insulation board is fixedly mounted on the bottom of the base and is located outside the accommodating cavity.
[0014] In one of the embodiments, the fire tray is provided with convex ribs arranged around the center thereof to improve the structural strength of the fire tray and reduce deformation.
[0015] The utility model has the following beneficial effects:
[0016] The fire tray and combustion space are used to contain the wood, and the through holes of the fire tray can let in air and leak ash to ensure sufficient combustion; the containing cavity can let in air and receive the ash leaking downward; the insulation board is used to reduce the heat above the insulation board and transfer downward to the space below the insulation board, which can reduce the heat diffusion to the bottom of the wood stove, reduce the waste of heat source, lower the temperature of the bottom of the stove, avoid ignition of flammable items near the bottom of the stove, and improve safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A cross-sectional view of an embodiment of the utility model;
[0019] Figure 2 A three-dimensional diagram of an embodiment of the utility model;
[0020] Figure 3 for Figure 2 Schematic diagram of the decomposed state structure;
[0021] Figure 4 It is a schematic diagram of the exploded structure of the base and the heat insulation board;
[0022] Figure 5 It is a schematic diagram of the exploded structure of the fire tray and furnace body.
[0023] Reference numerals:
[0024] Base 100, accommodating chamber 110, upper chamber 111, lower chamber 112, air inlet 120, supporting feet 130;
[0025] The fire tray 200, the through hole 210, the air outlet 220, the positioning convex ring 230, the convex rib 240, and the enclosure 250;
[0026] Furnace body 300, combustion space 301, inner tube 310, air outlet 311, outer skirt 312, connecting fold 313, outer tube 320, ventilation cavity 330;
[0027] Heat insulation board 400;
[0028] The fire gathering ring 500 , the gathering portion 510 , and the supporting portion 520 . DETAILED DESCRIPTION
[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When 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. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0032] Please refer to Figure 1 and Figure 2 A wood-fired stove in a preferred embodiment of the present invention includes a base 100, a fire tray 200, a stove body 300 and a heat insulation board 400.
[0033] The base 100 is provided with a receiving cavity 110, the receiving cavity 110 opens upward, and the base 100 is provided with an air inlet hole 120 communicating with the receiving cavity 110, so that external air can enter the receiving cavity 110 from the air inlet hole 120. The fire tray 200 is supported on the base 100, and the fire tray 200 is provided with a through hole 210 that penetrates vertically, so that the air entering the receiving cavity 110 from the air inlet hole 120 can enter the space above the fire tray 200 through the through hole 210, thereby ensuring that sufficient air enters during combustion. The furnace body 300 is connected to the fire tray 200 and forms a combustion space 301 with an upper opening with the fire tray 200, so that the flame surges upward to heat the items above that need to be heated; the heat insulation board 400 is installed on the base 100, and the heat insulation board 400 is used to reduce the heat conduction from the side of the heat insulation board 400 facing the furnace body 300 to the side of the heat insulation board 400 facing away from the furnace body 300, that is, to reduce the heat conduction from the top of the heat insulation board 400 downward to the space below the heat insulation board 400.
[0034] The present invention provides a wood-burning stove, which uses a fire tray 200 and a combustion space 301 to accommodate wood. The through hole 210 of the fire tray 200 can take in air and leak ash to ensure sufficient combustion; the accommodating cavity 110 can take in air and receive the ash leaking downward; the heat insulation board 400 is used to reduce the heat above the heat insulation board 400 and transfer downward to the space below the heat insulation board 400, which can reduce the diffusion of heat toward the bottom of the wood-burning stove, reduce the waste of heat source, lower the temperature of the stove bottom, avoid ignition of flammable items near the stove bottom, and improve safety performance.
[0035] Reference Figure 1 In some embodiments of the present invention, the furnace body 300 includes an inner tube 310 and an outer tube 320, the inner tube 310 is connected to the outer tube 320 and forms a ventilation cavity 330 with an opening facing downward, the edge of the fire tray 200 is provided with an air port 220 corresponding to the ventilation cavity 330, and the upper peripheral wall of the inner tube 310 is provided with an air outlet 311, so that part of the air entering the accommodating cavity 110 will pass through the air port 220 into the ventilation cavity 330 and enter the upper end of the combustion cavity 301 from the air outlet 311, and finally flow upward out of the combustion cavity 301, and the air will drive the flame to flow upward, so that the flame can contact more objects to be heated, thereby improving the heating efficiency. It can be understood that the through hole 210 and the air port 220 are arranged in a surrounding manner to achieve the effect of multi-position ventilation and uniform ventilation.
[0036] Reference Figure 1 and Figure 5In a further embodiment of the utility model, the upper end of the inner cylinder 310 is provided with an outwardly extending outer skirt 312, and the outer peripheral edge of the outer skirt 312 is provided with an upwardly extending connecting fold 313, and the upper end of the outer cylinder 320 is sleeved on the connecting fold 313 and connected and fixed to the connecting fold 313. The connecting fold 313 has a certain height and can play a better positioning effect on the sleeve of the outer cylinder 320. Specifically, the connecting fold 313 and the upper end of the outer cylinder 320 are connected and fixed by welding.
[0037] Reference Figure 1 and Figure 5 In a further embodiment of the utility model, the fire tray 200 is provided with a positioning protrusion 230 for positioning the bottom of the inner tube 310, thereby playing a certain positioning role for the inner tube 310, so that it will not easily shake left and right relative to the fire tray 200, thereby improving the stability of the structure.
[0038] Reference Figure 1 and Figure 5 In a further embodiment of the utility model, the outer periphery of the fire tray 200 is provided with a downwardly extending enclosure 250, the bottom of the outer cylinder 320 is sleeved on the outer periphery of the enclosure 250 and connected and fixed to the fire tray 200; the upper end of the base 100 abuts against the bottom surface of the fire tray 200 and is embedded in the space enclosed by the enclosure 250. The enclosure 250 has a certain height to play a good positioning role for the sleeve of the bottom of the outer cylinder 320, the outer diameter of the upper end of the base 100 is smaller than the diameter of the enclosure 250, and the enclosure 250 plays a certain limiting and positioning role on the upper end of the base 100, the base 100 and the fire tray 200 are only in contact, and the fire tray 200 can be directly separated from the base 100 upward, so as to facilitate the cleaning of the ash in the accommodating chamber 110. Specifically, the bottom of the outer cylinder 320 is connected and fixed to the outer periphery of the enclosure 250 by welding, so that the inner cylinder 310, the outer cylinder 320 and the fire tray 200 are connected together to form an integral component, which is convenient for overall installation and disassembly.
[0039] Reference Figure 1 , Figure 2 and Figure 3 In a further embodiment of the utility model, a fire gathering ring 500 is further included, which is installed at the upper end of the furnace body 300 and surrounds the opening of the accommodating cavity 110. The fire gathering ring 500 has a gathering portion 510 that gathers upward, so that the flame gathers toward the center and avoids the flame from escaping from the edge, so that the heating efficiency is higher and the heat utilization rate is improved. The cross section of the gathering portion 510 is in the shape of a cone that gathers upward.
[0040] Reference Figure 1 and Figure 3In a further embodiment of the utility model, a supporting portion 520 extending outward is provided at the bottom of the fire gathering ring 500, and the supporting portion 520 is supported by the extended skirt 312. The extended skirt 312 is used to support the fire gathering ring 500, and the upward extending connecting folded edge 313 can also play a positioning and limiting role for the supporting portion 520, so that the fire gathering ring 500 will not fall off easily, and the fire gathering ring 500 can be directly removed without the need for fasteners to be installed.
[0041] Reference Figure 1 and Figure 4 In a further embodiment of the utility model, the heat insulation board 400 is fixedly installed in the accommodating chamber 110, and the heat insulation board 400 divides the accommodating chamber 110 into an upper chamber 111 and a lower chamber 112. The air inlet hole 120 is arranged in the upper chamber 111, and the air inlet hole 120 is arranged around to ensure the air intake; thus, while the heat insulation board 400 plays a role in heat insulation, the hollowing effect of the lower chamber 112 also plays a certain role in heat insulation. In addition, in order to prevent the bottom of the base 100 from directly contacting the bearing surface, the base 100 is provided with a plurality of support feet 130 arranged at intervals.
[0042] Of course, in other embodiments, the heat insulation board 400 can also be fixedly installed on the bottom of the base 100 and located outside the accommodating cavity 110, which can also play a heat insulation effect.
[0043] In a specific embodiment of the present invention, the insulation board 400 may be a board with insulation function such as an asbestos board or a fireproof board, which may be fixed to the base 100 by fasteners, clamping, etc.; of course, the insulation board 400 may also be a combination of an asbestos board or a fireproof board and a metal plate, and the insulation board 400 may be installed and fixed by welding the metal plate to the base 100.
[0044] Reference Figure 5 In some embodiments of the present invention, the fire tray 200 is provided with a convex rib 240 arranged around the center thereof, so as to improve the structural strength of the fire tray 200 and reduce deformation.
[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A wood-burning stove, characterized in that: include: A base (100) is provided with a receiving cavity (110), the receiving cavity (110) is open upward, and the base (100) is provided with an air inlet (120) communicating with the receiving cavity (110), so that external air can enter the receiving cavity (110) through the air inlet (120); The fire tray (200) is supported on the base (100) and is provided with a vertically penetrating through hole (210), so that the air entering the accommodating cavity (110) from the air inlet hole (120) can enter the space above the fire tray (200) through the through hole (210); A furnace body (300) connected to the fire tray (200) and forming a combustion space (301) with an upper opening with the fire tray (200); The heat insulation board (400) is installed on the base (100) and is used to reduce the heat from the side of the heat insulation board (400) facing the furnace body (300) from being transferred to the side of the heat insulation board (400) facing away from the furnace body (300).
2. The wood-fired stove according to claim 1, characterized in that: The furnace body (300) comprises an inner tube (310) and an outer tube (320); the inner tube (310) is connected to the outer tube (320) and forms a ventilation cavity (330) with an opening facing downward; an air outlet (220) is provided at the edge of the fire tray (200) corresponding to the ventilation cavity (330); and an air outlet (311) is provided on the peripheral wall of the upper end of the inner tube (310).
3. The wood-fired stove according to claim 2, characterized in that: The upper end of the inner tube (310) is provided with an outwardly extending outer skirt (312), and the outer peripheral edge of the outer skirt (312) is provided with an upwardly extending connecting fold (313), and the upper end of the outer tube (320) is sleeved on the connecting fold (313) and is connected and fixed to the connecting fold (313).
4. The wood-fired stove according to claim 2, characterized in that: The fire tray (200) is provided with a positioning protruding ring (230) for positioning and sleeved on the bottom of the inner cylinder (310).
5. The wood-fired stove according to claim 2, characterized in that: The outer periphery of the fire tray (200) is provided with a downwardly extending enclosure (250); the bottom of the outer cylinder (320) is sleeved on the outer periphery of the enclosure (250) and is connected and fixed to the enclosure (250); the upper end of the base (100) is against the bottom surface of the fire tray (200) and is embedded in the space enclosed by the enclosure (250).
6. The wood-fired stove according to any one of claims 1 to 5, characterized in that: It also includes a fire gathering ring (500) installed on the upper end of the furnace body (300) and surrounding the opening of the accommodating cavity (110), and the fire gathering ring (500) has a gathering portion (510) that gathers upward.
7. The wood-fired stove according to claim 6, characterized in that: The bottom of the fire gathering ring (500) is provided with a supporting portion (520) extending outwards, and the supporting portion (520) is supported by the extended skirt (312).
8. The wood-fired stove according to claim 1, characterized in that: The heat insulation board (400) is fixedly mounted on the accommodating chamber (110) and divides the accommodating chamber (110) into an upper chamber (111) and a lower chamber (112); the air inlet hole (120) is arranged in the upper chamber (111).
9. The wood-fired stove according to claim 1, characterized in that: The heat insulation board (400) is fixedly mounted on the bottom of the base (100) and is located outside the accommodating cavity (110).
10. The wood-fired stove according to claim 1, characterized in that: The fire tray (200) is provided with a convex rib (240) arranged around the center thereof.