Bottom smoke outlet backflow incense
By adopting a core strip structure in the backflow incense, the problems of poor incense stick strength and ash falling off are solved, thereby improving structural strength and smoke swirling effect.
Patent Information
- Application Number
- CN202520711072.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Traditional backflow incense sticks have problems such as poor stick strength, easy breakage, and ash falling and affecting environmental hygiene.
It adopts a core strip structure, which is made of flame-retardant material and has a hollow interior with openings on the side. Smoke enters the core strip through the openings and overflows from the smoke outlet of the incense holder. Ash adheres to the core strip, reducing it from falling off.
The structure of the incense stick has been improved, and the ash is collected in a concentrated manner, resulting in a good visual effect of smoke while also making the environment more hygienic.
Smart Images

Figure CN223913896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities technology, and in particular to a backflow incense holder for lighting incense. Background Technology
[0002] Traditionally, solid incense sticks are used, which are inserted into a special incense burner and lit. The main drawback of this method is that the smoke rises, failing to create the visual effect of swirling smoke. To address this, incense sticks with backflow design were invented. These incense sticks have smoke holes inside, while the incense burner (or incense holder) has smoke outlets on the top or side. The smoke produced when the incense burns flows through these smoke holes to the bottom of the stick, then into the burner (or incense holder), and finally out through the smoke outlets, achieving a visual effect of swirling smoke. For example, Chinese utility model CN202020389989.0, proposed by this applicant, discloses a backflow incense holder that allows smoke to escape from the bottom. By setting smoke outlets on the bottom surface of the incense holder, the smoke overflows from the bottom and then surrounds the holder, completely enveloping it and achieving a good visual effect of swirling smoke. However, this design still has some problems. For example, the internal smoke holes result in weaker incense sticks that are more prone to breakage. Also, the ash tends to fall off the burner during combustion because there's nowhere for it to adhere, some of it landing outside the incense holder, especially when burning at higher points or in windy conditions. This ash affects environmental hygiene and makes cleaning difficult. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies by providing a bottom-exit incense burner with a simple structure, more reasonable design, better visual effect, higher structural strength, and reduced ash fall.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a bottom-exiting backflow incense, comprising an incense body and an incense holder, wherein the incense holder has a smoke outlet hole, and a core strip is provided inside the incense body, the incense body is attached to the surface of the core strip, and the core strip is inserted into the incense holder; the inside of the core strip is a hollow structure to form a smoke channel, the smoke channel is connected to the smoke outlet hole of the incense holder to form a smoke backflow structure; an opening is provided on the side of the core strip along the axial direction, the opening is connected to the hollow structure inside the core strip, and the incense body covers the opening from the outside.
[0005] Furthermore, the core strip is a long strip structure made of flame-retardant material, with its bottom end extending out from the bottom of the incense burner and inserted into the incense holder. The core strip is made of a metal tube, such as an iron tube or an aluminum alloy tube.
[0006] Furthermore, the core strip is a round tube structure or a square tube structure, with open structures at both the top and bottom ends, and the side openings extending from the top to the bottom.
[0007] Furthermore, an insertion hole is provided in the incense holder, and the bottom end of the core strip is inserted and fixed in the insertion hole.
[0008] Furthermore, the upper part of the incense holder is provided with a downward-facing recessed receiving cavity, into which the bottom end of the incense stick extends.
[0009] Furthermore, a thin film that can melt when heated is covered at the opening of the core strip, and the part of the fragrance body opposite the opening is covered on the surface of the film.
[0010] Furthermore, a downward-facing guide hole is provided at the bottom center of the receiving cavity, which is connected to the insertion hole, and the diameter of the insertion hole is smaller than the diameter of the guide hole; the smoke outlet is horizontally positioned in the middle of the incense holder and connects with the guide hole.
[0011] This invention incorporates a core strip inside the incense burner. The core strip, being stronger than the burner itself, supports the burner, preventing breakage. Furthermore, the ash from burning adheres primarily to the core strip, preventing it from falling away, thus making it more environmentally friendly and hygienic. The core strip is hollow with an opening on its side, allowing smoke to enter and flow along the hollow structure to the incense holder. Finally, the smoke escapes from the holder's exhaust port, creating a pleasant, swirling smoke effect. Attached Figure Description
[0012] Figure 1 This is a planar structural diagram of the present invention;
[0013] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0014] Figure 3 This is an exploded structural diagram of the present invention.
[0015] In the diagram, 1 is the incense body, 2 is the incense holder, 21 is the receiving cavity, 22 is the insertion hole, 23 is the smoke outlet, 24 is the guide hole, 3 is the core strip, and 31 is the opening. Detailed Implementation
[0016] In this embodiment, refer to Figures 1-3 The bottom-exit backflow incense includes an incense body 1 and an incense base 2. The incense base 2 has a smoke outlet 23. The incense body 1 has a core strip 3 inside. The incense body 1 is attached to the surface of the core strip 3, and the core strip 3 is inserted into the incense base 2. The inside of the core strip 3 is a hollow structure, forming a smoke channel. The smoke channel is connected to the smoke outlet 23 of the incense base 2 to form a smoke backflow structure. An opening 31 is provided on the side of the core strip 3 along the axial direction. The opening 31 is connected to the hollow structure inside the core strip 3, and the incense body 1 covers the opening 31 from the outside.
[0017] The core strip 3 is a long strip structure made of flame-retardant material, with its bottom end extending out from the bottom of the incense body 1 and inserted into the incense holder. For example, it can be a metal tube, particularly an iron or aluminum alloy tube.
[0018] The core strip 3 is a round tube or a square tube with open ends at both the top and bottom, and the side opening 31 extends from the top to the bottom.
[0019] An insertion hole 22 is provided in the incense holder 2, and the bottom end of the core strip 3 is inserted and fixed in the insertion hole 22.
[0020] The upper part of the incense holder 2 has a downward-facing recessed receiving cavity 21. The bottom end of the incense body 1 extends into the receiving cavity 21, and a small amount of fallen ash will fall into the receiving cavity 21 to prevent it from falling outside.
[0021] A thin film (not shown) that can melt when heated is covered at the opening 31 of the core strip 3. The part of the incense body 1 opposite to the opening 31 is covered on the surface of the film to prevent it from entering the hollow interior of the core strip 3. The film that the incense body 1 burns will melt, allowing the smoke to enter the smoke channel and flow to the incense holder 2.
[0022] A downward-facing guide hole 24 is provided at the bottom center of the receiving cavity 21. The guide hole 24 is connected to the insertion hole 22. The diameter of the insertion hole 22 is smaller than the diameter of the guide hole 24. The smoke outlet 23 is horizontally positioned in the middle of the incense holder 2 and is connected to the guide hole 24. Smoke enters the guide hole 24 from the core strip 3 and is finally discharged from the smoke outlet 23.
[0023] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.
Claims
1. A bottom-smoke-outflow incense burner, comprising an incense body and an incense holder, wherein the incense holder has a smoke outlet, characterized in that: The core strip is internally provided with a core strip, the fragrance body is attached to the surface of the core strip, and the core strip is inserted into the holder; the core strip is internally provided with a hollow structure to form a smoke passage, the smoke passage is communicated with the smoke outlet hole of the holder to form a smoke backflow structure; the side surface of the core strip is axially provided with an opening, the opening is communicated with the internal hollow structure of the core strip, and the opening is covered by the fragrance body from the outside.
2. The backflowing inverted smoke of claim 1, wherein: The core strip is a long strip structure made of a flame-retardant material, and the bottom end of the core strip extends out of the bottom of the fragrance body and is inserted into the holder.
3. The backflowing inverted smoke according to claim 2, wherein: The core strip is made of a metal pipe.
4. The backflowing inverted smoke according to claim 1, wherein: The core strip is a circular pipe structure or a square pipe structure, and the upper end and the lower end of the core strip are both open structures, and the opening in the side surface extends from the upper end to the lower end.
5. The backflowing inverted smoke according to claim 2, wherein: The holder is provided with a socket, and the bottom end of the core strip is inserted and fixed in the socket.
6. The backflowing inverted smoke according to claim 5, wherein: The upper half of the holder is provided with a downwardly recessed accommodation cavity, and the bottom end of the fragrance body extends into the accommodation cavity.
7. The backflowing inverted smoke according to claim 1, wherein: A downwardly recessed flow guide hole is arranged at the center bottom of the accommodation cavity, the flow guide hole is communicated with the socket, the diameter of the socket is smaller than the diameter of the flow guide hole; and the smoke outlet hole is transversely arranged at the middle position of the holder and is in butt joint with the flow guide hole.
8. The backflowing inverted stream of smoke according to claim 1 or 4, wherein: A layer of heat-meltable film is covered on the opening of the core strip, and the part of the fragrance body opposite to the opening is covered on the surface of the film.
9. The backflowing inverted smoke according to claim 3, wherein: The core strip is made of an iron pipe or an aluminum alloy pipe.
Citation Information
Patent Citations
Backflow incense base capable of discharging smoke from bottom
CN211673668U