Internal cleaning structure for hollow pinhole channel

Abstract

The invention discloses a hollow pinhole channel internal cleaning structure which comprises a smoking set shell (1), a partition plate (2) is fixedly arranged on the upper portion in the smoking set shell (1), a hollow heating needle (3) is arranged at the top of the partition plate (2), a plurality of air inlet channels (4) extending in the axial direction are formed in the hollow heating needle (3), a cleaning needle (5) is arranged in each air inlet channel (4), and the cleaning needles (5) are arranged in the hollow heating needle (3). A cleaning needle driving assembly is further arranged on the partition plate (2). The air inlet channel of the hollow heating needle can be cleaned, effective circulation of air in the air inlet channel is guaranteed, and the problem of blockage of the air inlet channel is solved.

Description

Technical Field

[0001] This invention relates to a hollow needle-hole internal cleaning structure, belonging to the technical field of heated non-combustible smoking devices. Background Technology

[0002] Heated cigarettes offer significant advantages, including reduced harm, a taste similar to traditional cigarettes, and high safety. Therefore, the popularity of heated cigarettes continues to rise.

[0003] Currently, there are two main types of smoking devices used for heated tobacco products: center-heated devices and circumferentially heated devices. Center-heated devices use a heating needle to heat the cigarette from the inside out. To increase smoke output, hollow heating needles have been developed. Because hollow heating needles allow more air to enter the heated tobacco product, they effectively increase smoke output. However, in practical use, it has been found that the air intake channel of the hollow heating needle is prone to blockage, preventing effective gas flow. Currently, there is no good solution to this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a cleaning structure for the interior of a hollow needle channel to solve the technical problems in the prior art. It can clean the air intake channel of a hollow heating needle, ensure effective gas flow in the air intake channel, and solve the problem of air intake channel blockage.

[0005] The present invention provides a hollow needle channel internal cleaning structure, including a smoking device housing, a partition fixedly provided in the upper part of the smoking device housing, a hollow heating needle provided at the top of the partition, a plurality of axially extending air intake channels provided in the hollow heating needle, a cleaning needle provided in each air intake channel, and a cleaning needle driving assembly provided on the partition.

[0006] In the aforementioned hollow needle channel internal cleaning structure, preferably, the inner diameters of the air intake channels inside the hollow heating needle are equal, and all the air intake channels are distributed at equal intervals in the circumferential direction around the axis of the hollow heating needle.

[0007] In the aforementioned hollow needle channel internal cleaning structure, preferably, a piston is fixed at the lower end of each cleaning needle, and the diameter of the piston is equal to the diameter of the air intake channel.

[0008] In the aforementioned hollow needle channel internal cleaning structure, preferably, a limiting rod is fixed to the lower end of each piston.

[0009] In the aforementioned hollow needle channel internal cleaning structure, preferably, a hollow heating needle base is installed on the top surface of the partition, and the lower end of the cleaning needle is fixedly connected to the hollow heating needle base through a connecting post, wherein the diameter of the connecting post is smaller than the outer diameter of the hollow heating needle.

[0010] In the aforementioned hollow needle channel internal cleaning structure, preferably, the cleaning needle driving assembly includes an annular piston and a return spring, a heating chamber is fixedly connected to the hollow heating needle base, the inner ring surface of the annular piston is slidably connected to the outer wall of the hollow heating needle, the outer ring surface of the annular piston is slidably connected to the inner wall of the heating chamber, the lower end of the return spring is fixedly connected to the top surface of the hollow heating needle base, the upper end of the return spring is fixedly connected to the bottom surface of the annular piston, and multiple air inlets are opened on the side wall of the hollow heating needle, the air inlets communicating with the air inlet channel.

[0011] In the aforementioned hollow needle channel internal cleaning structure, preferably, a battery is fixedly installed at the bottom of the smoking device housing, a controller is installed in the middle of the smoking device housing, and a switch is installed on the side wall of the smoking device housing. The switch, the battery, and the hollow heating needle are all electrically connected to the controller.

[0012] Compared with the prior art, the present invention sets a cleaning needle in the air intake channel of the hollow heating needle and drives the cleaning needle to move through the cleaning needle drive component, so that the cleaning needle can clean the tobacco or carbon deposits in the air intake channel, prevent the air intake channel from being blocked, and ensure the normal operation of the hollow heating needle. Attached Figure Description

[0013] Figure 1 This is an isometric view of the present invention;

[0014] Figure 2 This is a half-sectional view of the present invention;

[0015] Figure 3 It is an exploded diagram of the invention;

[0016] Figure 4 This is a half-sectional view of the hollow heating needle, cleaning needle, and cleaning needle driving assembly of the present invention.

[0017] Figure 5 This is an isometric view of the hollow heating needle and cleaning needle drive assembly of the present invention;

[0018] Figure 6 This is an isometric view of the cleaning needle of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Smoking device housing; 2. Partition plate; 3. Hollow heating needle; 4. Air inlet channel; 5. Cleaning needle; 6. Piston; 7. Limiting rod; 8. Hollow heating needle base; 9. Connecting column; 10. Ring piston; 11. Return spring; 12. Heating chamber; 13. Air inlet; 14. Battery; 15. Controller; 16. Switch. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Embodiments of the present invention: such as Figures 1-6 As shown, a hollow needle channel internal cleaning structure includes a smoking device housing 1, which is a cylindrical housing. A partition 2 is fixedly provided in the upper part of the smoking device housing 1. A hollow heating needle 3 is provided on the top of the partition 2. Multiple air intake channels 4 extending axially are provided in the hollow heating needle 3. A cleaning needle 5 is provided in each air intake channel 4. A cleaning needle driving assembly is also provided on the partition 2.

[0022] The top of the hollow heating needle 3 is a conical structure, which makes it easy to insert into the heated non-combustible cigarette. The air intake channel 4 on the hollow heating needle 3 allows more air to enter the heated non-combustible cigarette, increasing the amount of smoke produced and cooling the smoke.

[0023] Each time a heated tobacco product is inserted, the lower end of the heated tobacco product will squeeze the cleaning needle drive component, which will then cause the cleaning needle 5 to move upward, thus completing the cleaning of the air intake channel 4.

[0024] Specifically, the air intake channels 4 inside the hollow heating needle 3 have equal inner diameters, and all the air intake channels 4 are evenly distributed circumferentially around the axis of the hollow heating needle 3. In this embodiment, the number of air intake channels 4 is preferably four. Each of the four air intake channels 4 is provided with a cleaning needle 5.

[0025] Each cleaning needle 5 has a piston 6 fixed at its lower end. The diameter of the piston 6 is equal to the diameter of the air intake channel 4. A sealing ring can be installed on the piston 6 to prevent air leakage.

[0026] To prevent the piston 6 from moving downwards too far and separating from the intake passage 4, it is preferable to fix a limiting rod 7 at the lower end of each piston 6. A hollow heating needle base 8 is installed on the top surface of the partition 2. The lower end of the cleaning needle 5 is fixedly connected to the hollow heating needle base 8 through a connecting post 9. The diameter of the connecting post 9 is smaller than the outer diameter of the hollow heating needle 3.

[0027] When piston 6 moves down to its limit position, limit rod 7 abuts against the top surface of hollow heating needle base 8 to prevent piston 6 from separating from intake channel 4.

[0028] Furthermore, the cleaning needle drive assembly includes an annular piston 10 and a return spring 11. A heating chamber 12 is fixedly connected to the hollow heating needle base 8. The inner ring surface of the annular piston 10 is slidably connected to the outer wall of the hollow heating needle 3, and the outer ring surface of the annular piston 10 is slidably connected to the inner wall of the heating chamber 12. The lower end of the return spring 11 is fixedly connected to the top surface of the hollow heating needle base 8, and the upper end of the return spring 11 is fixedly connected to the bottom surface of the annular piston 10. Multiple air inlets 13 are provided on the side wall of the hollow heating needle 3, and the air inlets 13 are connected to the air inlet channel 4.

[0029] When the annular piston 10 moves upward to its extreme position, the bottom surface of the annular piston 10 is located below the air inlet 13. Sealing rings can be provided on both the inner and outer annular surfaces of the annular piston 10 to prevent air leakage.

[0030] A battery 14 is fixedly installed at the bottom inside the casing 1 of the smoking device. A controller 15 is located in the middle of the casing 1. A switch 16 is located on the side wall of the casing 1. The switch 16, the battery 14, and the hollow heating needle 3 are all electrically connected to the controller 15. The battery 14, the controller 15, and the switch 16 are all commercially available products and can be obtained directly.

[0031] The working principle of this invention is as follows: When in use, a heated tobacco product is inserted into the heating chamber 12, and the hollow heating needle 3 is inserted into the inside of the heated tobacco product. As the heated tobacco product is inserted, its bottom surface contacts the annular piston 10. As the heated tobacco product continues to be inserted, the annular piston 10 moves downward. The downward movement of the annular piston 10 compresses the gas, causing the gas to push against each piston 6. Each piston 6 moves upward with each cleaning needle 5. When the heated tobacco product is inserted to the bottom, the tip of each cleaning needle 5 extends out of the top of each air intake channel 4, thereby cleaning the air intake channel 4 and preventing tobacco or carbon deposits from clogging the air intake channel 4.

[0032] After inhaling, the heated non-combustible cigarette is pulled out. Under the action of the return spring 11, the annular piston 10 moves upward. At this time, air enters through the air inlet 13, and each piston 6 moves downward with the cleaning needle 5 until the limiting rod 7 at the bottom of each cleaning needle 5 comes into contact with the hollow heating needle base 8 and stops moving.

[0033] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A hollow needle channel internal cleaning structure, comprising a smoking device shell (1), characterized in that: The upper part of the casing (1) of the smoking device is fixedly provided with a partition (2), and a hollow heating needle (3) is provided on the top of the partition (2). The hollow heating needle (3) is provided with a plurality of air intake channels (4) extending along the axial direction. Each air intake channel (4) is provided with a cleaning needle (5). The partition (2) is also provided with a cleaning needle drive assembly.

2. The hollow needle channel internal cleaning structure according to claim 1, characterized in that: The inner diameters of the air intake channels (4) inside the hollow heating needle (3) are equal, and all the air intake channels (4) are distributed at equal intervals in the circumferential direction around the axis of the hollow heating needle (3).

3. The hollow needle channel internal cleaning structure according to claim 1 or 2, characterized in that: Each of the cleaning needles (5) has a piston (6) fixed at its lower end, the diameter of which is equal to the diameter of the air intake channel (4).

4. The hollow needle channel internal cleaning structure according to claim 3, characterized in that: Each piston (6) has a limiting rod (7) fixed at its lower end.

5. The hollow needle channel internal cleaning structure according to claim 4, characterized in that: A hollow heating needle base (8) is installed on the top surface of the partition (2). The lower end of the cleaning needle (5) is fixedly connected to the hollow heating needle base (8) through a connecting post (9). The diameter of the connecting post (9) is smaller than the outer diameter of the hollow heating needle (3).

6. The hollow needle channel internal cleaning structure according to claim 5, characterized in that: The cleaning needle drive assembly includes an annular piston (10) and a return spring (11). A heating chamber (12) is fixedly connected to the hollow heating needle base (8). The inner ring surface of the annular piston (10) is slidably connected to the outer wall of the hollow heating needle (3). The outer ring surface of the annular piston (10) is slidably connected to the inner wall of the heating chamber (12). The lower end of the return spring (11) is fixedly connected to the top surface of the hollow heating needle base (8). The upper end of the return spring (11) is fixedly connected to the bottom surface of the annular piston (10). A plurality of air inlets (13) are provided on the side wall of the hollow heating needle (3). The air inlets (13) are connected to the air inlet channel (4).

7. The hollow needle channel internal cleaning structure according to claim 6, characterized in that: A battery (14) is fixedly installed at the bottom inside the casing (1) of the smoking device. A controller (15) is provided in the middle of the casing (1). A switch (16) is provided on the side wall of the casing (1). The switch (16), the battery (14) and the hollow heating needle (3) are all electrically connected to the controller (15).

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