Self-cleaning heating appliance

Abstract

The utility model discloses a self-cleaning heating appliance which is used for heating a cigarette, the cigarette comprises a filter tip and a tobacco section, the self-cleaning heating appliance comprises a shell, a heating body and a sliding pipe, the shell is provided with a sliding pipe cavity with an opening facing one end, and the sliding pipe is contained in the sliding pipe cavity; the sliding pipe is arranged in the cavity of the sliding pipe and can move in the cavity of the sliding pipe in the longitudinal direction within a preset range, the bottom of the sliding pipe is provided with a heating body hole allowing a heating body to be inserted, and the top of the sliding pipe is provided with a clamping structure, so that when a cigarette is inserted, the cigarette enters the sliding pipe, and after the cigarette is inserted in place, the heating body is inserted into a tobacco section of the cigarette, and a filter tip is clamped by the clamping structure; when the cigarette is pulled out, the sliding pipe is driven to move together, the tobacco section is separated from the heating body under supporting of the bottom of the sliding pipe, the sliding pipe stops moving after moving by a preset distance, and the cigarette overcomes the clamping force of the clamping structure to be separated from the sliding pipe. The self-cleaning heating appliance can automatically clean tobacco shreds adhering to the heating body, operation is easy, and the experience feeling of a user is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of heated cigarette technology, and in particular to a self-cleaning heating appliance. Background Technology

[0002] Center heating elements are typically cylindrical or sheet-shaped, inserted into the tobacco from the end of the cigarette. Center heating is characterized by a small heating area and high temperature, reaching up to 350°C. During the carbonization process, the layer of tobacco closest to the heating element is more severely carbonized. This carbonization process releases a viscous liquid, causing the tobacco near the heating element to stick to it. When the user removes the cigarette from the heating device, the tobacco may detach entirely from the filter or partially fall off, leaving some or all of the tobacco inside the heating chamber and rendering the device unusable.

[0003] To ensure the tobacco is pulled out along with the filter when the cigarette is removed from the heating chamber, existing heated tobacco products have a specially designed outer sleeve that moves axially with the cigarette for cleaning. However, after each heating cycle, the user must first remove the outer sleeve, then pull the cigarette out, and finally reattach the sleeve to the device. Sometimes, if the user accidentally removes the cigarette first, tobacco remains inside the device, requiring secondary cleaning. Therefore, while this solution solves the problem of tobacco sticking to the heating element, the operation is cumbersome and the user experience is poor. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a self-cleaning heating device that can automatically clean the tobacco shreds adhering to the heating element.

[0005] The technical solution provided by this utility model is as follows:

[0006] A self-cleaning heating device is used to heat a cigarette. The cigarette includes a filter and a tobacco segment. The self-cleaning heating device includes a housing, a heating element, and a sliding tube. The housing has a sliding tube cavity that opens to one end. The sliding tube is housed in the sliding tube cavity and can move longitudinally within the sliding tube cavity within a preset range. The bottom of the sliding tube has a heating element hole for inserting the heating element, and the top has a clamping structure. When the cigarette is inserted, it enters the sliding tube. After insertion, the tobacco segment of the cigarette is inserted by the heating element, and the filter is clamped by the clamping structure. When the cigarette is pulled out, it moves the sliding tube together, causing the tobacco segment to detach from the heating element under the support of the bottom of the sliding tube. The sliding tube stops moving after moving a preset distance, and the cigarette overcomes the clamping force of the clamping structure and detaches from the sliding tube.

[0007] Preferably, the clamping structure is a protrusion protruding inward from the wall of the sliding tube, and the filter nozzle is deformed inward after being clamped by the protrusion.

[0008] Preferably, the protrusion is a raised spherical surface formed by pressing the wall of the sliding tube inward.

[0009] Preferably, there are multiple protrusions, which are evenly arranged along the periphery of the pipe wall.

[0010] Preferably, the end of the sliding tube is provided with a guide port for easy insertion of a cigarette.

[0011] Preferably, the end of the sliding cavity is flared to avoid the guide opening.

[0012] Preferably, the bottom of the sliding tube is also provided with multiple air inlets.

[0013] Preferably, the sliding tube cavity is provided with a lower limiting platform at the bottom and an upper limiting platform at the top. The upper limiting platform and the lower limiting platform together enable the sliding tube to move longitudinally within a preset range in the sliding tube cavity.

[0014] Preferably, the housing includes a fixed upper cover and a lower cover, and the sliding tube cavity, the upper limit platform and the lower limit platform are all located on the upper cover.

[0015] Preferably, the lower cover and the upper cover are respectively provided with a recess and a protrusion at opposite ends, the protrusion is inserted into the recess, and the sliding tube cavity is located inside the protrusion.

[0016] Compared to existing technologies, this self-cleaning heating appliance features a sliding tube with a clamping structure, which can be driven by the cigarette itself to achieve a fixed-distance limiting movement. This allows it to automatically clean the tobacco sticking to the heating element, making it easy to operate and significantly improving the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the self-cleaning heater of this utility model when the cigarette is just inserted;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the self-cleaning heating appliance after the cigarette is inserted into place.

[0020] Figure 3 for Figure 1 The diagram shows the structure of the self-cleaning heater when the cigarette is just pulled out.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the self-cleaning heater when the sliding tube contacts the upper limit platform during the cigarette stick removal process.

[0022] Figure 5 for Figure 1 The diagram shows the structure of the self-cleaning heater after the cigarette is removed.

[0023] Figure 6 for Figure 1 A three-dimensional schematic diagram of the sliding tube in the self-cleaning heating appliance shown;

[0024] Figure 7 for Figure 6 The front view of the sliding tube shown;

[0025] Figure 8 for Figure 6 The bottom view of the sliding tube shown;

[0026] Figure 9 for Figure 2 A magnified view of the area indicated by A in the middle;

[0027] Figure 10 for Figure 1 A front view of another embodiment of the sliding tube in the self-cleaning heating appliance shown. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0032] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0033] like Figures 1 to 9 As shown, this embodiment of the present invention provides a self-cleaning heating device for heating a cigarette stick 1. The cigarette stick 1 includes a filter tip 101 and a tobacco segment 102, the tobacco segment 102 containing tobacco shreds.

[0034] The self-cleaning heating appliance includes a housing, a heating element 3, a sliding tube 2, a PCB board 4, a battery 5, and a power button 8. A heating element mounting base 301 is located at the base of the heating element 3, and the heating element mounting base 301 is connected to the PCB board 4. The battery 5 is connected to the PCB board 4 to provide energy to the heating element 3, and the power button 8 controls the on / off state of the PCB board 4.

[0035] The housing includes a fixed upper cover 7 and a lower cover 6. The lower cover 6 and upper cover 7 each have a recess and a protrusion at their opposite ends, with the protrusion inserted into the recess. The housing has a sliding tube cavity 701, open at one end to accommodate the sliding tube 2, located within the protrusion of the upper cover 7. The sliding tube cavity 701 has a lower limiting platform 702 at its bottom and an upper limiting platform 703 at its top. The upper limiting platform 703 and the lower limiting platform 702 together allow the sliding tube 2 to move longitudinally within the sliding tube cavity 701 within a preset range. Both the upper limiting platform 703 and the lower limiting platform 702 are located on the upper cover 7. This structure simplifies the housing structure, ensures reliable fit between the upper and lower covers, and guarantees precise movement of the sliding tube 2.

[0036] The sliding tube 2 is housed in the sliding tube cavity 701 and can move longitudinally within the sliding tube cavity 701 within a preset range. The sliding tube 2 is made of SUS304, which is resistant to acids and alkalis. The wall thickness of the sliding tube 2 is between 0.15-0.2mm, and it occupies little space.

[0037] like Figures 6 to 8 As shown, the bottom center of the sliding tube 2 has a heating element hole 203 for inserting the heating element 3, and multiple air inlets 204 are provided around it. The top of the sliding tube 2 has a clamping structure, so that when the cigarette 1 is inserted, it enters the sliding tube 2. After insertion, the end of the cigarette 1 is inserted by the heating element 3, and the surrounding wall is clamped by the clamping structure. When the cigarette 1 is pulled out, it moves the sliding tube 2 together, causing the tobacco segment to detach from the heating element 3 under the support of the bottom of the sliding tube 2. The sliding tube 2 stops moving after moving a preset distance, and the cigarette 1 overcomes the clamping force of the clamping structure and detaches from the sliding tube 2. In this embodiment, the clamping structure is located at the top of the sliding tube 2 wall to clamp the filter tip 101. After the cigarette 1 is inserted, the heating element 3 is inserted into the tobacco segment 102. The clamping structure clamps the filter tip 101, which can prevent some tobacco from sticking to the heating element 3 and also prevent the tobacco from falling off completely.

[0038] In this embodiment, the wall of the sliding tube 2 is pressed inward to form a raised spherical surface 203. This raised spherical surface 203 forms a clamping structure, and the filter tip is deformed inward after being clamped by the raised spherical surface 203. Of course, in other embodiments, the clamping structure can also be other shapes, as long as it is a protrusion protruding inward from the wall of the sliding tube, and it is not limited to a protrusion; it can also be other shapes, as long as it can clamp the cigarette. In this embodiment, there are four raised spherical surfaces 203, which are evenly arranged in a row along the periphery of the tube wall. Of course, in other embodiments, the number of raised spherical surfaces can also be other, and they can be arranged in multiple rows in a staggered manner in the longitudinal direction (e.g., Figure 10 (As shown). The end of the sliding tube 2 is also provided with a guide port 201 to facilitate the insertion of the cigarette 1. The opening diameter of the guide port 201 is larger than the diameter of the cigarette 1. Correspondingly, the end of the sliding tube cavity 701 is flared to avoid the guide port 201 (as shown). Figure 9 (As shown).

[0039] Its working principle is as follows: When cigarette 1 is inserted into the guide port 201 of the sliding tube 2, if... Figure 1 As shown, the cigarette 1 pushes the sliding tube 2 downward in the sliding tube cavity 701. After the sliding tube 2 reaches the lower limit platform 702, it stops moving. The cigarette 1 continues to move downward, and the outer periphery of the cigarette 1 filter 101 is pressed against the raised spherical surface 203. The cigarette filter 101 is deformed inward, and the raised spherical surface 203 is embedded in the filter 101, so that the raised spherical surface 203 clamps the filter 101 (as shown). Figure 9 (As shown). After the cigarette 1 is inserted into the bottom of the sliding tube 2, it stops moving, as shown. Figure 2 As shown. When the power button 8 is turned on, after the heating element 3 heats the tobacco for a certain period of time, the tobacco sticks to the heating element 3. When the cigarette 1 is pulled out, because the convex spherical surface 203 is embedded in the clamping filter 101, when the cigarette 1 moves upward, the bottom of the sliding tube 2 drives the tobacco segment 102 to move together, causing the tobacco segment 102 to detach from the heating element 3, as shown. Figure 3 As shown. When the tobacco segment 102 and the sliding tube 2 continue to move upward, the sliding tube 2 stops moving after hitting the upper limit platform 703, as... Figure 4 As shown. Cigarette 1 continues to move upward and detaches from sliding tube 2, while sliding tube 2 remains inside sliding tube cavity 701, as... Figure 5 As shown.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-cleaning heating appliance for heating a cigarette comprising a filter and a tobacco segment, characterized in that, The self-cleaning heating appliance includes a housing, a heating element, and a sliding tube. The housing has a sliding tube cavity that opens to one end. The sliding tube is housed in the sliding tube cavity and can move longitudinally within the sliding tube cavity within a preset range. The bottom of the sliding tube has a heating element hole for inserting the heating element, and the top has a clamping structure. When a cigarette is inserted, it enters the sliding tube. After insertion, the tobacco segment of the cigarette is inserted by the heating element, and the filter is clamped by the clamping structure. When the cigarette is pulled out, it moves the sliding tube together, causing the tobacco segment to detach from the heating element under the support of the bottom of the sliding tube. The sliding tube stops moving after moving a preset distance, and the cigarette overcomes the clamping force of the clamping structure and detaches from the sliding tube.

2. The self-cleaning heating appliance of claim 1, wherein, The clamping structure is a protrusion protruding inward from the wall of the sliding tube, and the filter nozzle is deformed inward after being clamped by the protrusion.

3. The self-cleaning heating appliance of claim 2, wherein, The protrusion is a raised spherical surface formed by pressing the sliding tube wall inward.

4. The self-cleaning heating appliance of claim 2, wherein the heating element is a heating coil. There are multiple protrusions, which are evenly arranged along the periphery of the pipe wall.

5. The self-cleaning heating appliance of claim 1, wherein, The end of the sliding tube is provided with a guide port for easy insertion of a cigarette.

6. The self-cleaning heating appliance of claim 5, wherein, The end of the sliding tube is flared to avoid the guide opening.

7. The self-cleaning heating appliance of claim 1, wherein, The bottom of the sliding tube is also provided with multiple air inlets.

8. The self-cleaning heating appliance of claim 1, wherein, The sliding tube cavity is provided with a lower limiting platform at the bottom and an upper limiting platform at the top. The upper and lower limiting platforms together enable the sliding tube to move longitudinally within a preset range in the sliding tube cavity.

9. The self-cleaning heating appliance of claim 8, wherein, The housing includes a fixed upper cover and a lower cover, and the sliding tube cavity, upper limit platform and lower limit platform are all located on the upper cover.

10. The self-cleaning heating appliance of claim 9, wherein, The lower cover and the upper cover are respectively provided with a recess and a protrusion at opposite ends. The protrusion is inserted into the recess, and the sliding tube is located inside the protrusion.

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