Cigarette electrostatic adsorption filtering device

Abstract

A cigarette electrostatic adsorption filtering device comprises a filter tip assembling hole used for inserting one end of a cigarette filter tip, one end of the filter tip assembling hole is a filter tip inlet, the other end of the filter tip assembling hole is a smoke outlet, and the smoke outlet of the filter tip assembling hole is communicated with a suction nozzle used for sucking a cigarette. A filter tip fixing area for clamping a cigarette filter tip is formed in the side, close to the smoke outlet, of the interior of the filter tip assembly hole, and the portion, on the outer side of the filter tip fixing area, of the filter tip assembly hole is sleeved with a discharge electrode of a static electricity generation device. And harmful components such as smaller tar particles and nicotine in smoke are adsorbed into the filter tip through the electrostatic field, so that the filtering and adsorbing effects are improved, and the harm of cigarettes to human bodies is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cigarettes, in particular to a cigarette electrostatic adsorption filtering device. Background Art

[0002] The smoke produced by combustion contains a variety of chemical substances, many of which are toxic substances, mainly nicotine, tar, suspended particles, carbon monoxide, butane, etc., among which tar is the most harmful to the human body. In order to reduce the harm of incense to the human body, the existing practice is to add a section of acetate filter to one end of the cigarette to mechanically reduce the inhalation of tar and nicotine. The three main functions of cigarette filters include direct interception, inertial compression and diffusion precipitation, and the most common is direct interception filter. Filtration is a complicated process, that is, after the tar particles are separated from the smoke, some larger tar particles will adhere to the inside of the acetate filter material when they reach it, but some smaller tar particles will enter the mouth due to the negative pressure of suction. Therefore, how to improve the adsorption effect of the filter on smaller tar particles is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The utility model solves the shortcomings of the prior art and provides a cigarette electrostatic adsorption filter device which improves the adsorption effect of the filter tip on harmful components such as tar particles and nicotine.

[0004] To achieve the above-mentioned purpose, the utility model first proposes a cigarette electrostatic adsorption filtration device, including a filter assembly hole, one end of the filter assembly hole is a filter inlet, and the other end is a smoke outlet, the smoke outlet of the filter assembly hole is connected to a suction nozzle for smoking a cigarette, and a filter fixing area for clamping the cigarette filter is formed in the filter assembly hole, on the side close to the smoke outlet, and the filter assembly hole is provided with a discharge electrode of an electrostatic generating device on the outer side of the filter fixing area.

[0005] In this embodiment, the discharge electrode includes a high-voltage coil, which is spirally wound outside the filter fixing area with the filter assembly hole as the center.

[0006] In this embodiment, the electrostatic generating device includes a high-voltage coil, a PCB control board, a high-voltage output module, a battery and a control switch. The high-voltage output module, the battery, the high-voltage coil and the control switch are all electrically connected to the PCB control board. The PCB control board controls the battery to supply power to the high-voltage output module through the control switch, and the high-voltage output module outputs high voltage to discharge through the high-voltage coil.

[0007] In this implementation, the battery is a rechargeable battery, and the PCB control board is electrically connected to a TYPE-C interface for charging the battery.

[0008] In this embodiment, it further includes a housing, a lower bracket, and an upper cover. The top and bottom of the housing are open. The lower bracket is installed at the bottom of the housing. The lower bracket includes a base and a cigarette insertion cylinder fixed on the base. The base matches the size of the bottom opening of the housing. The control switch, the PCB control board, and the battery are all installed on the base. During assembly, the lower bracket is inserted through the bottom opening of the housing, and the base is snap-fitted onto the bottom opening of the housing. The cigarette insertion cylinder, the control switch, the PCB control board, and the battery are arranged inside the housing. The filter tip assembly hole is arranged inside the cigarette insertion cylinder. An opening communicating with the filter tip assembly hole is provided on the base to form the filter tip inlet. An opening is provided at the top of the cigarette insertion cylinder to form the flue gas outlet.

[0009] The upper cover matches the size of the top opening of the housing. An inwardly concave assembly groove matching the outer diameter of the suction nozzle installation end is provided on the upper cover at a position corresponding to the flue gas outlet. An opening is provided at the bottom of the assembly groove. The upper cover is snap-fitted into the top opening of the housing. After the housing, the lower bracket, and the upper cover are assembled, the opening at the bottom of the assembly groove of the upper cover communicates with the flue gas outlet at the top of the cigarette insertion cylinder.

[0010] In this embodiment, a plurality of annular grooves are provided on the outer side wall of the suction nozzle at its installation end. The plurality of annular grooves are arranged along the axial direction of the suction nozzle. Sealing rings are installed in the annular grooves, and the sealing rings protrude from the annular grooves. The suction nozzle is hermetically assembled in the assembly groove through the sealing rings.

[0011] In this embodiment, a radially protruding annular protrusion is provided on the inner wall of the flue gas outlet of the cigarette insertion cylinder to form a cigarette limiting boss. The inner diameter of the cigarette limiting boss is smaller than the outer diameter of the filter tip. The cigarette limiting boss is used to control the depth of the cigarette inserted into the cigarette insertion cylinder. The end face of the cigarette limiting boss is in direct contact with the filter tip, so that more static charges can be directly conducted to the filter tip without passing through the outer paper of the cigarette.

[0012] In this embodiment, a chamfer is provided on the inlet side of the filter tip inlet on the base to form an outer cigarette guiding edge. The outer cigarette guiding edge makes the inlet side of the filter tip inlet larger than the outlet side, so as to facilitate the insertion of the cigarette into the filter tip assembly hole.

[0013] In this embodiment, both the cigarette insertion cylinder and the filter tip are made of acetate fiber. In this way, the same type of charges are generated in the electrostatic field for both of them.

[0014] In this embodiment, a switch assembly groove communicating the outside with the filter tip assembly hole is provided on the side wall of the cigarette insertion cylinder. The control switch is installed in the switch assembly groove. In the initial state, the trigger key of the control switch is arranged inside the filter tip assembly hole. In the use state, after the cigarette is inserted into the filter tip assembly hole, the filter tip of the cigarette will push the trigger key, so that the control switch sends a signal to the PCB control board, and the PCB control board controls the high-voltage output module to output high voltage.

[0015] In this embodiment, the control switch includes a trigger key, a return spring, a spring fixing seat, and a detection switch. A spring fixing seat is fixed to the outer side of the cigarette holder tube at the position where the switch assembly groove is located. The trigger key is slidably installed in the switch assembly groove and can move radially along the filter assembly hole in the switch assembly groove. A trigger post is provided on the trigger key, and a through hole is provided on the spring fixing seat at the corresponding position of the trigger post. A return spring is sleeved on the trigger post. One end of the return spring is fixed to the spring fixing seat, and the other end is fixed to the trigger key. The detection switch is installed on the PCB control board, and the position of the detection switch corresponds to that of the trigger post. In the use state, after the cigarette is inserted into the filter assembly hole, the filter tip pushes the trigger key to move radially, and the trigger post on the trigger key touches the detection switch, causing the detection switch to send a signal. At the same time, the trigger key compresses the return spring. When the cigarette is pulled out of the cigarette holder tube, the return spring causes the trigger key to return to the initial state.

[0016] With the above structure, the present device has the following advantages:

[0017] 1. After the filter tip of the cigarette is inserted into the filter assembly hole, an electrostatic field is generated simultaneously in the filter assembly hole and the filter tip by the discharge electrode. When the flue gas passes through the filter tip, the electrostatic field of the filter tip adsorbs the suspended dust and tar condensation particles in the flue gas, thereby separating part of the tar and dust from the flue gas and reducing the harm of the flue gas to the smoker's body.

[0018] 2. The discharge electrode of the present device adopts a spiral high-voltage coil to increase the length of the discharge electrode, increase the discharge area, make the entire acetate fiber filter tip charged electrostatically, and also reduce the weight of the electrode and simplify the structure.

[0019] 3. The present device makes full use of the existing filter tip of the cigarette as a dust accumulation carrier. After finishing smoking one cigarette and replacing it with the next one, the dust accumulation carrier is a brand-new carrier, ensuring the filtering effect of each cigarette, reducing the probability of residual substances remaining on other structural components. In addition, in the present application, the filter tip adopts a multi-microporous acetate fiber material, which has a large total dust removal surface area, a larger adsorption capacity, and a better dust removal effect.

[0020] 4. The electrostatic generating device of the present application is controlled to open and close through a control switch, and the trigger key of the control switch adopts a hidden design. On the one hand, when the filter tip is inserted into the filter assembly hole and the trigger key is pressed down, the electrostatic generating device is automatically turned on, ensuring the continuous operation of the electrostatic generating device during the entire suction process. On the other hand, the trigger key also acts on the filter tip and plays a role in clamping the filter tip, making the entire structure more concise. Moreover, when the filter tip is pulled out of the filter assembly hole, the trigger key rebounds and the electrostatic generating device automatically shuts down, which can save electricity and extend the service time of the device.

[0021] In summary, the structure of the utility model is simple and convenient to use. By utilizing an electrostatic field, some smaller harmful components such as tar particles and nicotine in the flue gas are adsorbed in the filter tip through the electrostatic field, thereby improving the filtering and adsorption effect and reducing the harm of cigarettes to the human body. Brief Description of the Drawings

[0022] Figure 1 It is a diagram of the utility model in the working state.

[0023] Figure 2 It is a diagram of the initial state of the utility model.

[0024] Figure 3 It is a schematic structural diagram of the utility model after the filter tip is disassembled.

[0025] Figure 4 It is a schematic structural diagram of the lower bracket of the utility model.

[0026] Figure 5 It is a schematic structural diagram of the trigger key of the utility model.

[0027] Figure 6 It is a schematic structural diagram of the upper cover of the utility model.

[0028] Figure 7 It is a schematic structural diagram of the cigarette of the utility model.

[0029] Figure 8 It is an exploded view of the utility model.

[0030] In the drawings, 1. Filter tip; 101. Annular groove; 2. Sealing ring; 3. High-voltage coil; 4. Lower bracket; 401. Switch assembly groove; 402. Cigarette limiting boss; 403. Charging port; 404. Filter tip assembly hole; 405. Cigarette guiding edge; 406. Cigarette inserting cylinder; 407. Base; 5. Outer shell; 6. Trigger key; 601. Trigger post; 7. Return spring; 8. Spring fixing seat; 9. Detection switch; 10. PCB control board; 11. TYPE-C interface; 12. High-voltage output module; 13. Battery; 14. Upper cover; 1401. Assembly groove; 15. Cigarette; 1501. Tobacco section; 1502. Filter tip; 1503. Cigarette outer paper. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0032] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] As Figure 1 shown, a cigarette electrostatic adsorption filtering device includes a filter tip assembly hole 404. One end of the filter tip assembly hole 404 is a filter tip inlet, and the other end is a flue gas outlet. A filter tip 1502 of a cigarette is inserted into the filter tip assembly hole 404. The flue gas outlet of the filter tip assembly hole 404 is communicated with a mouthpiece 1 for sucking the cigarette 15. A filter tip fixing area for clamping the filter tip 1502 of the cigarette is formed on one side of the filter tip assembly hole 404 close to the flue gas outlet. A discharge electrode of an electrostatic generating device is sleeved outside the filter tip fixing area of the filter tip assembly hole 404. Specifically, the discharge electrode is a high-voltage coil 3, and the high-voltage coil 3 is spirally wound outside the filter tip fixing area with the filter tip assembly hole 404 as the center.

[0034] The electrostatic generating device includes a high-voltage coil 3, a PCB control board 10, a high-voltage output module 12, a battery 13 and a control switch. The high-voltage output module 12, the battery 13, the high-voltage coil 3 and the control switch are all electrically connected to the PCB control board 10. The PCB control board 10 controls the battery 13 to supply power to the high-voltage output module 12 through the control switch, and the high-voltage output module 12 outputs high voltage to discharge through the high-voltage coil 3; the battery 13 is a rechargeable battery 13, and a TYPE-C interface 11 for charging the battery 13 is electrically connected to the PCB control board 10.

[0035] As Figure 8 shown, it further includes a housing 5, a lower bracket 4 and an upper cover 14. The top and bottom of the housing 5 are open. The lower bracket 4 is installed at the bottom of the housing 5. The lower bracket 4 includes a base 407 and a cigarette inserting cylinder 406 fixed on the base 407. The base 407 matches the size of the bottom opening of the housing 5. The control switch, the PCB control board 10 and the battery 13 are installed on the base 407. During assembly, the lower bracket 4 is inserted from the bottom opening of the housing 5, and the base 407 is clamped on the bottom opening of the housing 5. The cigarette inserting cylinder 406, the control switch, the PCB control board 10 and the battery 13 are arranged inside the housing 5; a charging port 403 matching the TYPE-C interface 11 is provided on the base 407, and the TYPE-C interface 11 is installed in the charging port 403;

[0036] The filter assembly hole 404 is provided inside the cigarette inserting cylinder 406. An opening communicating with the filter assembly hole 404 is provided on the base 407 to form the filter inlet. An opening is provided at the top of the cigarette inserting cylinder 406 to form the flue gas outlet. An annular convex block protruding radially is provided on the inner wall of the cigarette inserting cylinder 406 at the flue gas outlet to form the cigarette limiting boss 402. The inner diameter of the cigarette limiting boss 402 is smaller than the outer diameter of the filter tip 1502. The cigarette limiting boss 402 controls the depth of the cigarette 15 inserted into the cigarette inserting cylinder 406. The end face of the cigarette limiting boss 402 is in direct contact with the filter tip 1502, allowing more static charges to be directly conducted into the filter tip 1502 without passing through the outer paper of the cigarette 15.

[0037] A chamfer is provided on the inlet side of the filter inlet on the base 407 to form the outer cigarette guiding edge 405. The outer cigarette guiding edge 405 makes the inlet side of the filter inlet larger than the outlet side, facilitating the insertion of the cigarette 15 into the filter assembly hole 404.

[0038] The upper cover 14 matches the size of the top opening of the outer shell 5. An inwardly concave assembly groove 1401 matching the outer diameter of the mounting end of the mouthpiece 1 is provided on the upper cover 14 at the position corresponding to the flue gas outlet. An opening is provided at the bottom of the assembly groove 1401. The upper cover 14 is snap-fitted into the top opening of the outer shell 5. After the outer shell 5, the lower bracket 4, and the upper cover 14 are assembled, the opening at the bottom of the upper cover assembly groove 1401 communicates with the flue gas outlet at the top of the cigarette inserting cylinder 406. Further, a plurality of annular grooves 101 are provided on the outer side wall of the mounting end of the mouthpiece 1. The plurality of annular grooves 101 are arranged along the axial direction of the mouthpiece 1. A sealing ring 2 is installed in the annular groove 101. The sealing ring 2 protrudes from the annular groove 101. The mouthpiece 1 is hermetically assembled in the assembly groove 1401 through the sealing ring 2.

[0039] As Figure 3 、 5 As shown in FIG. 8, a switch assembly groove 401 communicating the outside with the filter assembly hole 404 is provided on the side wall of the cigarette inserting cylinder 406 below the filter fixing area. The control switch is installed in the switch assembly groove 401. In the initial state, the trigger key 6 of the control switch is arranged in the filter assembly hole 404. In the use state, after the cigarette 15 is inserted into the filter assembly hole 404, the filter tip 1502 of the cigarette 15 will push the trigger key 6, causing the control switch to send a signal to the PCB control board 10, and the PCB control board 10 controls the high-voltage output module 12 to output high voltage.

[0040] Specifically, the control switch includes a trigger key 6, a return spring 7, a spring fixing seat 8, and a detection switch 9. A spring fixing seat 8 is fixed on the outer side of the cigarette insertion cylinder 406 at the position where the switch assembly groove 401 is located. The trigger key 6 is slidably installed in the switch assembly groove 401. The trigger key 6 can move radially along the filter tip assembly hole 404 in the switch assembly groove 401. A trigger post 601 is provided on the trigger key 6. The spring fixing seat 8 is provided with a through hole at the corresponding position of the trigger post 601. A return spring 7 is sleeved on the trigger post 601. One end of the return spring 7 is fixed to the spring fixing seat 8, and the other end is fixed to the trigger key 6. The detection switch 9 is installed on the PCB control board 10, and the detection switch 9 corresponds to the position of the trigger post 601. In the use state, after the cigarette 15 is inserted into the filter tip assembly hole 404, the filter tip 1502 pushes the trigger key 6 to move radially. The trigger post 601 on the trigger key 6 passes through the through hole to touch the detection switch 9, causing the detection switch 9 to send a signal. At the same time, the trigger key 6 compresses the return spring 7. When the cigarette 15 is pulled out of the cigarette insertion cylinder 406, the return spring 7 causes the trigger key 6 to return to the initial state.

[0041] Further, the cigarette 15 is composed of two parts: a tobacco section 1501 and a filter tip 1502. Both the cigarette insertion cylinder 406 and the filter tip 1502 are made of acetate fiber, aiming to make the two generate charges with the same electrical properties in the electrostatic field.

[0042] Working principle:

[0043] As Figure 1 shown, when the cigarette filter tip 1502 is inserted into the filter tip assembly hole 404, the filter tip 1502 pushes the trigger key 6 to move backward and compresses the return spring 7. The contact point 601 on the trigger key 6 touches the detection switch 9, and the detection switch 9 is turned on. The PCB control board 10 controls the high-voltage output module 12 to output high voltage, and discharges through the high-voltage coil 3, so that an electrostatic field is generated in both the filter tip assembly hole 404 and the filter tip 1502 at the same time. When the flue gas passes through the filter tip 1502, the electrostatic field of the filter tip 1502 adsorbs the suspended dust and tar condensation particles in the flue gas, thereby separating part of the tar and dust from the flue gas and reducing the physical harm of the flue gas to smokers.

[0044] As Figure 2 shown, when the cigarette is pulled out of the filter tip assembly hole 404, the return spring 7 pushes the trigger key 6 to move in the opposite direction, and the contact point 601 on the trigger key 6 leaves the detection switch 9. The detection switch 5 is turned off, and the high-voltage output module 12 stops working, and the high-voltage coil 3 stops generating a high-voltage electric field.

[0045] As Figure 1 shown, when the cigarette filter tip 1502 is inserted into the filter tip assembly hole 404, the trigger key 6 clamps the filter tip 1502 under the action of the return spring 7 to prevent the cigarette 15 from loosening and exiting the filter tip assembly hole 404 during suction.

[0046] As Figure 3 shown, after the filtering device is used many times, some condensate will be generated in the nozzle 1, and the nozzle 1 can be unplugged for cleaning. After the nozzle 1 is unplugged, the filter nozzle assembly hole 404 can also be cleaned.

[0047] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cigarette static adsorption filtration device, characterized in that: It includes a filter assembly hole. One end of the filter assembly hole is the filter inlet, and the other end is the flue gas outlet. The flue gas outlet of the filter assembly hole is communicated with a mouthpiece for sucking cigarettes. Inside the filter assembly hole, a filter fixing area for clamping the cigarette filter is formed on the side close to the flue gas outlet. An electrode of an electrostatic generating device is sleeved outside the filter fixing area of the filter assembly hole.

2. The cigarette static adsorption filtration device according to claim 1, characterized in that: The electrode includes a high-voltage coil, and the high-voltage coil is spirally wound outside the filter fixing area with the filter assembly hole as the center.

3. The cigarette static adsorption filtration device according to claim 2, wherein: The electrostatic generating device includes a high-voltage coil, a PCB control board, a high-voltage output module, a battery, and a control switch. The high-voltage output module, the battery, the high-voltage coil, and the control switch are all electrically connected to the PCB control board. The PCB control board controls the battery to supply power to the high-voltage output module through the control switch, and the high-voltage output module outputs high voltage to discharge through the high-voltage coil.

4. The cigarette static adsorption filtration device according to claim 3, wherein: The battery is a rechargeable battery, and a TYPE-C interface for charging the battery is electrically connected to the PCB control board.

5. The cigarette static adsorption filtration device according to claim 3 or 4, characterized in that: It further includes a housing, a lower bracket, and an upper cover. The top and bottom of the housing are open. The lower bracket is installed at the bottom of the housing. The lower bracket includes a base and a cigarette inserting cylinder fixed on the base. The base matches the size of the bottom opening of the housing. The control switch, the PCB control board, and the battery are installed on the base. The filter assembly hole is arranged in the cigarette inserting cylinder. An opening communicating with the filter assembly hole is provided on the base to form the filter inlet. An opening is provided at the top of the cigarette inserting cylinder to form the flue gas outlet. The upper cover matches the size of the top opening of the housing. An inwardly concave assembly groove matching the mouthpiece is provided on the upper cover at the position corresponding to the flue gas outlet. An opening is provided at the bottom of the assembly groove. The upper cover is clamped in the top opening of the housing. After the housing, the lower bracket, and the upper cover are assembled, the opening at the bottom of the assembly groove of the upper cover is communicated with the flue gas outlet at the top of the cigarette inserting cylinder.

6. The cigarette static adsorption filtration device according to claim 5, wherein: A plurality of annular grooves are formed on the outer side wall of the installation end of the mouthpiece. The plurality of annular grooves are arranged along the axial direction of the mouthpiece. Sealing rings are installed in the annular grooves, and the sealing rings protrude from the annular grooves. The mouthpiece is hermetically assembled in the assembly groove through the sealing rings.

7. The cigarette static adsorption filtration device according to claim 5, characterized in that: An annular convex block protruding radially is provided on the inner wall of the flue gas outlet of the cigarette inserting cylinder to form a cigarette limiting boss. The inner diameter of the cigarette limiting boss is smaller than the outer diameter of the filter, and the cigarette limiting boss is used to control the depth of the cigarette inserted into the cigarette inserting cylinder.

8. The cigarette static adsorption filtration device according to claim 5, characterized in that: A chamfer is provided on the inlet side of the filter inlet of the base to form an outer cigarette guiding edge.

9. The cigarette static adsorption filtration device according to claim 5, characterized in that: Both the cigarette inserting cylinder and the filter are made of acetate fiber.

10. The cigarette static adsorption filtration device according to claim 5, wherein: A switch assembly groove communicating the outside with the filter assembly hole is provided on the side wall of the cigarette inserting cylinder. The control switch is installed in the switch assembly groove. In the initial state, the trigger key of the control switch is arranged in the filter assembly hole. In the use state, after the cigarette is inserted into the filter assembly hole, the filter of the cigarette will push the trigger key, so that the control switch sends a signal to the PCB control board, and the PCB control board controls the high-voltage output module to output high voltage.

11. A cigarette static adsorption filtration device according to claim 10, characterized in that: The control switch includes a trigger key, a return spring, a spring fixing seat, and a detection switch. A spring fixing seat is fixed on the outer side of the cigarette holder cylinder at the position where the switch assembly groove is located. The trigger key is slidably installed in the switch assembly groove. The trigger key can move radially along the filter tip assembly hole in the switch assembly groove. A trigger post is provided on the trigger key. A through hole is provided on the spring fixing seat at the corresponding position of the trigger post. A return spring is sleeved on the trigger post. One end of the return spring is fixed to the spring fixing seat, and the other end is fixed to the trigger key. The detection switch is installed on the PCB control board, and the position of the detection switch corresponds to that of the trigger post. In the use state, after the cigarette is inserted into the filter tip assembly hole, the filter tip pushes the trigger key to move radially, and the trigger post on the trigger key touches the detection switch, causing the detection switch to send a signal. At the same time, the trigger key compresses the return spring. When the cigarette is pulled out of the cigarette holder cylinder, the return spring causes the trigger key to return to the initial state.

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