Fuel fire pit with detachable ash deposition box

Abstract

The utility model discloses a fuel fire pit with a detachable ash deposition box, which comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, the top end of the inner cylinder and the top end of the outer cylinder are connected through a top plate, so that a gas channel capable of being communicated with the outside and the combustion cavity is formed between the inner cylinder and the outer cylinder, and an ash deposition box which is located below the inner cylinder and can be pulled in the radial direction is arranged at the bottom of the outer cylinder. According to the furnace, ash and the like formed after combustion of a combustion medium in the combustion cavity can fall into the ash accumulation box, when cleaning is needed, the ash accumulation box only needs to be pulled out, pouring can be conducted, the situation that the whole furnace body is turned over or the ash accumulation box is pulled out by stretching the hand into the furnace opening is not needed, and the ash cleaning efficiency is improved; and the possibility that the arms of the user are scalded is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stoves, in particular to a fuel fire pit with a detachable ash box. Background Art

[0002] Portable wood-burning stoves are used for camping, heating, and cooking. Similarly, large portable fire pits are used in residential backyards for entertaining, providing outdoor heat and supporting limited cooking activities such as baking.

[0003] Portable wood stoves can be fueled by branches and sticks. Ashes fall into the bottom of the stove. Removing these ashes from the stove may require rolling or inverting the stove, which can be laborious and inconvenient for many users. Cleaning the fire pit pan and the fire pit structure beneath it can also be challenging.

[0004] For example, US Patent Publication No. 11391465B1 discloses a wood-burning fire pit with a removable fire grate and ash tray. Specifically, the disclosure includes a removable fire tray disposed within a combustion chamber and configured to support combustible fuel for combustion. The removable fire tray includes: a plurality of holes sized to allow embers to pass through the combustible fuel; and at least one handle feature sized and shaped to allow a user to remove the removable fire tray from the fire pit by vertically lifting the removable fire tray through the combustion chamber. The fire pit also includes a removable ash tray disposed within the combustion chamber and below the removable fire tray. The removable ash tray includes: sidewalls and a bottom, and at least one gripping surface configured to allow a user to remove the removable ash tray from the fire pit by vertically lifting it. In this solution, the user needs to lift the ash tray vertically out of the stove before pouring the ash from the ash tray. When the ash tray is lifted during the burning process of the fire pit, the user must put his hand into or reach the fire pit mouth, which can easily cause burns to the user's arm. Wearing thick and long high-temperature resistant gloves makes the operation complicated. Utility Model Content

[0005] The main purpose of the utility model is to provide a fuel fire pit with a detachable ash box, aiming to solve the above technical problems.

[0006] To achieve the above-mentioned objectives, the utility model proposes a fuel fire pit with a removable ash box, comprising an outer tube, an inner tube and a top plate, the interior of the inner tube being a combustion chamber, the upper parts of the inner tube and the outer tube being connected by a top plate, and a gas channel being formed between the inner tube and the outer tube that can communicate with the outside and the combustion chamber, and is characterized in that the inner tube comprises a furnace plate and a side wall arranged around the outer edge of the furnace plate, a plurality of internal air inlet holes being provided on the furnace plate, at least one of the plurality of internal air inlet holes being sized as an ash outlet hole allowing fuel ash to pass through, an ash box that can be taken out and replayed radially being provided under the furnace plate, and the ash box being arranged to receive fuel ash that passes through all the ash outlet holes when in the replay state.

[0007] In one embodiment, the fuel fire pit with a detachable ash box further includes a bottom plate disposed within the outer cylinder, and the ash box is disposed on the bottom plate.

[0008] In one embodiment, a slide groove is provided on the top wall of the bottom plate, and the dust box can be slidably installed in the slide groove of the bottom plate.

[0009] In one embodiment, a row of external air inlet holes arranged at intervals along the circumferential direction is provided at the lower portion of the outer cylinder, and the external air inlet holes are located above the bottom plate.

[0010] In one embodiment, the upper portion of the side wall is provided with secondary combustion-supporting air inlet holes arranged at intervals along the circumferential direction, and the secondary combustion-supporting air inlet holes are provided below the top plate.

[0011] In one embodiment, the shapes of the inner air inlet hole, the outer air inlet hole and the secondary combustion air inlet hole can be one or more of a circular hole, a strip hole, a square hole or a polygonal hole.

[0012] In one embodiment, the outer cylinder and the inner cylinder are made of stainless steel, cast iron or cast steel.

[0013] In one embodiment, the ash outlet hole is provided with a hole cover.

[0014] In one embodiment, the fuel fire pit with a detachable ash box further includes an ash retaining ring disposed on the top plate.

[0015] In one embodiment, an ash hopper is provided below the furnace plate.

[0016] In the technical solution of the present invention, a fuel fire pit with a removable ash box includes an outer tube, an inner tube and a top plate, the interior of the inner tube is a combustion chamber, the upper parts of the inner tube and the outer tube are connected by a top plate, and a gas channel that can communicate with the outside and the combustion chamber is formed between the inner tube and the outer tube, and is characterized in that the inner tube includes a furnace plate and a side wall arranged around the outer edge of the furnace plate, a plurality of internal air inlet holes are opened on the furnace plate, and the size of at least one of the plurality of internal air inlet holes is set to allow fuel ash to pass through, and an ash box that can be taken out and put back in radially is provided under the furnace plate, and the ash box is set to receive fuel ash that passes through all the ash outlet holes when in the put back state. Therefore, in this technical solution, the ashes and other materials formed after the combustion medium in the combustion chamber will fall into the ash box. When cleaning is needed, it is only necessary to pull out the ash box and dump it. There is no need to turn the entire furnace body over or reach into the furnace mouth to take out the ash box. This improves the cleaning efficiency and reduces the possibility of burns on the user's arms.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a fuel fire pit with a detachable ash box according to an embodiment of the present invention;

[0019] Figure 2 A schematic cross-sectional view of a fuel fire pit with a detachable ash box according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the interior of a fuel fire pit with a removable ash box according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the interior of a fuel fire pit with a removable ash box according to another embodiment of the present invention;

[0022] Figure 5 This is a structural schematic diagram of a fuel fire pit with a detachable ash box according to another embodiment of the present invention.

[0023] Explanation of the accompanying figures: 10. Outer cylinder; 11. Gas channel; 111. First air inlet cavity; 112. Second air inlet cavity; 12. External air inlet hole; 20. Inner cylinder; 21. Furnace plate; 22. Side wall; 23. Internal air inlet hole; 24. Secondary combustion air inlet hole; 25. Ash outlet hole; 26. Hole cover; 30. Top plate; 40. Ash box; 50. Bottom plate; 60. Ash retaining ring; 70. Ash funnel.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The utility model provides a fuel fire pit with a detachable ash storage box.

[0030] like Figure 1-3As shown, the fuel fire pit with a removable ash box 40 provided by an embodiment of the present invention includes an outer tube 10, an inner tube 20 and a top plate 30, the interior of the inner tube 20 is a combustion chamber, the upper parts of the inner tube 20 and the outer tube 10 are connected by the top plate 30, and a gas channel 11 that can communicate with the outside and the combustion chamber is formed between the inner tube 20 and the outer tube 10, and is characterized in that the inner tube 20 includes a furnace plate 21 and a side wall 22 arranged around the outer edge of the furnace plate 21, a plurality of internal air inlet holes 23 are opened on the furnace plate 21, and the size of at least one of the plurality of internal air inlet holes 23 is set to allow fuel ash to pass through the ash outlet hole 25, and an ash box 40 that can be taken out and put back in radially is provided under the furnace plate 21, and the ash box 40 is set to receive fuel ash that passes through all the ash outlet holes 25 when in the playback state.

[0031] In this embodiment, the ashes formed by the combustion medium in the combustion chamber after combustion will fall into the ash box 40. When cleaning is required, the ash box 40 only needs to be pulled out and dumped, and there is no need to turn over the entire furnace body, thereby improving the cleaning efficiency.

[0032] The fuel fire pit with a removable ash box 40 also includes a base plate 50 disposed within the outer cylinder 10, with the ash box 40 mounted on the base plate 50. A chute is provided on the top wall of the base plate 50, and the ash box 40 is slidably mounted within the chute of the base plate 50. Therefore, in this application, the ash box 40 can be slid out to empty the ash. After the ash is empty, the ash box 40 can be slid back in along the chute.

[0033] In the above embodiment, a row of circumferentially spaced external air inlet holes 12 are provided at the lower portion of the outer cylinder 10, and the external air inlet holes 12 are located above the bottom plate 50. The upper portion of the side wall 22 is provided with circumferentially spaced secondary combustion air inlet holes 24, and the secondary combustion air inlet holes 24 are located below the top plate 30.

[0034] When the device is in use, charcoal or other combustible materials are placed in the inner tube 20 and ignited. Air enters the inner tube 20 from the outer air inlet 12 and the inner air inlet 23 to provide sufficient oxygen for the combustion of charcoal or other combustible materials. Air can also enter from the outer air inlet 12 and be discharged from the secondary combustion-supporting air inlet 24. When smoke and unburned charcoal pass through the outlet of the inner tube 20, the secondary combustion-supporting air inlet 24 can provide oxygen to cause the smoke and unburned charcoal to burn secondary. Moreover, since the inner tube 20 is heated, the air in the gas channel 11 between the outer tube 10 and the inner tube 20 can be heated and rise, and a relatively low-pressure area will be formed in the lower area of ​​the inner tube 20. At this time, fresh air from the outside will be automatically replenished. During the continuous rise of the hot air, oxygen can be continuously provided, so that the smoke and unburned charcoal can continue to burn, reducing environmental pollution while improving the combustion effect and saving resources.

[0035] Please refer to Figure 4 When this device is in use, the ashes from the combustion of the inner cylinder 20 can fall through the holes in the inner air inlet 23 that are more similar in size to the ash outlet holes 25, into the ash hopper 70, which is tapered from top to bottom. The ashes then fall from the bottom of the ash hopper 70 into the ash box 40, facilitating centralized collection of the ashes and preventing environmental pollution. To facilitate rapid ash removal, the ash outlet holes 25 are typically larger than the size of the combustible material, such as charcoal. In this case, a hole cover 26 is provided on the ash outlet holes 25 to prevent unburned combustible material from falling through the ash outlet holes 25 and causing material loss.

[0036] In the above embodiment, the outer air inlet 12, inner air inlet 23, and secondary combustion-supporting air inlet 24 can be shaped in one or more of the following: circular, strip-shaped, square, or polygonal. In other words, the shapes of the outer air inlet 12, inner air inlet 23, and secondary combustion-supporting air inlet 24 are not limited; they only need to provide electrical communication between the two sides. Furthermore, the outer cylinder 10 and inner cylinder 20 are made of stainless steel, cast iron, or cast steel to ensure adequate temperature resistance.

[0037] Please refer to Figure 5 The fuel fire pit with a detachable ash box 40 further includes an ash retaining ring 60 provided on the top plate 30. In this embodiment, the ash retaining ring 60 that is inwardly contracted is provided on the top plate 30 to block dust escaping from above.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A fuel fire pit with a detachable ash box, comprising an outer cylinder (10), an inner cylinder (20) and a top plate (30), wherein the interior of the inner cylinder (20) is a combustion chamber, the upper portions of the inner cylinder (20) and the outer cylinder (10) are connected via the top plate (30), and a gas passage (11) is formed between the inner cylinder (20) and the outer cylinder (10) to communicate with the outside and the combustion chamber, characterized in that: The inner cylinder (20) comprises a furnace plate (21) and a side wall (22) arranged around the outer edge of the furnace plate (21); a plurality of inner air inlet holes (23) are provided on the furnace plate (21); at least one of the plurality of inner air inlet holes (23) is sized to form an ash outlet hole (25) for allowing fuel ash to pass through; an ash box (40) that can be taken out and replayed in the radial direction is provided below the furnace plate (21); the ash box (40) is arranged to receive fuel ash that has passed through all the ash outlet holes (25) when in the replayed state.

2. The fuel fire pit with a removable ash box according to claim 1, characterized in that The fuel fire pit with a detachable ash box further comprises a bottom plate (50) arranged in the outer cylinder (10), and the ash box (40) is arranged on the bottom plate (50).

3. The fuel fire pit with a removable ash box according to claim 2, characterized in that A sliding groove is provided on the top wall of the bottom plate (50), and the dust storage box (40) can be slidably installed in the sliding groove of the bottom plate (50).

4. The fuel fire pit with a removable ash box according to claim 3, characterized in that A row of external air inlet holes (12) arranged at intervals along the circumferential direction is provided at the lower portion of the outer cylinder (10), and the external air inlet holes (12) are located above the bottom plate (50).

5. The fuel fire pit with a removable ash box according to claim 4, characterized in that The upper portion of the side wall (22) is provided with secondary combustion-supporting air inlet holes (24) arranged at intervals along the circumferential direction, and the secondary combustion-supporting air inlet holes (24) are arranged below the top plate (30).

6. The fuel fire pit with a removable ash box according to claim 5, characterized in that The shapes of the inner air inlet (23), the outer air inlet (12) and the secondary combustion-supporting air inlet (24) can be one or more of a circular hole, a strip hole, a square hole or a polygonal hole.

7. The fuel fire pit with a removable ash box according to claim 1, characterized in that The outer cylinder (10) and the inner cylinder (20) are made of stainless steel, cast iron or cast steel.

8. The fuel fire pit with a removable ash box according to claim 1, characterized in that The ash discharge hole (25) is provided with a hole cover (26).

9. A fuel fire pit with a removable ash box according to any one of claims 1 to 8, characterized in that: The fuel fire pit with a detachable ash box further comprises an ash retaining ring (60) arranged on the top plate (30).

10. A fuel fire pit with a removable ash box according to any one of claims 1 to 8, characterized in that: An ash accumulation funnel (70) is provided below the furnace plate (21).

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