CN217012750U - Filter rod telescopic tobacco product - Google Patents

Abstract

The utility model relates to and discloses a tobacco product with a telescopic filter stick. Relates to the technical field of cigarette products. This application specifically includes cigarette section of being fuming, be close to the nearly cigarette section of being fuming, keep away from the filter tip section of cigarette section of being fuming, nearly cigarette section one end is connected with cigarette section of being fuming, the other end of nearly cigarette section is located to the filter tip section, and locate in nearly cigarette section and the filter tip section, be used for adjusting the regulating part of filter tip section height on nearly cigarette section, the regulating part is including fixing the canned paragraph in nearly cigarette section, and fix the removal section in the filter tip section, when removing the section and removing on the canned paragraph, it changes to drive the high emergence of filter tip section on nearly cigarette section, remove the section axial and be equipped with a plurality of first bleeder vents. The movable section of the utility model is axially provided with a plurality of first air holes, when the movable section moves on the fixed section, the height of the filter tip section on the cigarette approaching section is driven to change, and the number of the first air holes exposed outside is also changed, thereby completing the adjustment of the air mixing amount in the smoke.

Description

Filter rod telescopic tobacco product

Technical Field

The utility model relates to the technical field of cigarette products, in particular to a tobacco product with a telescopic filter stick.

Background

The common tobacco product consists of a cigarette smoking section loaded with tobacco shreds and a filter tip section for smoking, wherein the tobacco shreds are ignited in the cigarette smoking section and then are smoked in the filter tip section, and smoke generated after the tobacco shreds are ignited reaches the oral cavity of a person through the cigarette smoking section and the filter tip section. The smoke generated after the tobacco shred of the tobacco product is ignited is only contacted with the outside air at the ignited end of the cigarette smoking section, so that the mixing amount of the smoke and the air is less. And increase the mixing volume of flue gas and air, can reduce the content of CO in the flue gas to reduce the harm that the cigarette smoking caused to the health, the increase of air intake volume not only can make the pipe tobacco burning more abundant, increases the flue gas volume that produces, still makes the suction of cigarette more smooth and easy simultaneously. The existing tobacco products can increase the air input of air during smoking through some designs, and simultaneously increase the mixing amount of smoke and air. But along with the air input increases, the speed of pipe tobacco burning accelerates, and the flue gas that produces increases, to the less user of the flue gas that likes a suction, can influence its use and experience, consequently need design a section can carry out the tobacco products adjusted to the air input of air, makes it be applicable to the crowd of different smoking habits.

Chinese patent CN104687249B, published Japanese 2017-09-19 disclose a cigarette with an adjustable filter air input, which comprises a filter wrapped by tipping paper and a cigarette adhered to the end part of the filter through the tipping paper, wherein the filter comprises a fixed filter tip and an adjusting filter tip which are coaxially arranged, the fixed filter tip is communicated with the cigarette, the fixed filter tip is telescopically connected with the adjusting filter tip through a telescopic connecting piece, first spaced broken grooves are circumferentially distributed at the part of the tipping paper corresponding to the adjusting filter tip or the telescopic connecting piece, and the telescopic connecting piece is made of a breathable material or has a central channel structure; the filter length of the whole filter tip is controlled and the smoke trend is adjusted by adjusting the telescopic connecting piece. But this cigarette's tipping paper corresponds and adjusts filter tip or telescopic connection spare department circumference and distribute and have first interval broken groove, can have obvious layering on the cigarette filter tip to influence the outward appearance of cigarette.

Disclosure of Invention

The utility model aims to provide a tobacco product with a telescopic filter stick, aiming at the defects of the prior art, and the air intake quantity of cigarettes can be adjusted according to different user requirements.

The utility model provides a tobacco product with a telescopic filter stick, which comprises a cigarette smoking section, a near cigarette section close to the cigarette smoking section, a filter tip section far away from the cigarette smoking section, and an adjusting piece arranged in the near cigarette section and the filter tip section and used for adjusting the height of the filter tip section on the near cigarette section; nearly cigarette section one end is connected with a cigarette section of being fuming, the filter tip section is located the other end of nearly cigarette section, the regulating part is including fixing the canned paragraph in the nearly cigarette section, and fix removal section in the filter tip section, it is in to remove the section when moving on the canned paragraph, drive the filter tip section is in highly the change on the nearly cigarette section, the removal section is epaxial to be equipped with a plurality of first bleeder vents.

Furthermore, the cigarette approaching section comprises a first tow and first forming paper, wherein a first cavity is formed in the first tow, the first forming paper wraps the periphery of the first tow, the fixing section is inserted into the first cavity, and the first forming paper is used for forming the first tow.

Further, the filter section comprises a second tow and second forming paper, wherein a second cavity is formed in the second tow, the second forming paper wraps the periphery of the second tow, the moving section is inserted into the second cavity, and the second forming paper is used for forming the second tow.

Further, still include the parcel respectively cigarette smoking section one end with nearly cigarette section one end, be used for connecting the first china cypress paper of cigarette smoking section and nearly cigarette section.

The cigarette filter further comprises second tipping paper wrapped at one end of the filter section and the other end of the cigarette approaching section respectively, the second tipping paper is adhered to one end of the filter section and is not adhered to the other end of the cigarette approaching section, and when the height of the filter section on the cigarette approaching section changes, the second tipping paper moves on the cigarette approaching section along with the filter section.

Furthermore, a plurality of second air holes are axially formed in the part, which surrounds the other end of the cigarette approaching section, of the second tipping paper.

Furthermore, the fixed section is provided with a third cavity with an opening at one end for inserting the movable section.

Furthermore, a stopping portion is arranged at the opening end of the third cavity, a protruding portion is arranged at one end, inserted into the third cavity, of the moving section, and when the moving section moves to the opening end of the third cavity, the stopping portion is matched with the protruding portion to prevent the moving section from being drawn out of the third cavity.

And the limiting mechanism is used for automatically limiting the moving section after the moving section moves for a certain distance in the fixed section, and when acting force is applied to the moving section, the limiting mechanism releases the limitation on the moving section.

Furthermore, the limiting mechanism comprises a plurality of arc-shaped grooves which are axially arranged on the inner wall of the third cavity at equal intervals, and marbles which are arranged on the protruding part; when pressing the marble, the marble shrink in the bellying, when loosening the marble, the marble is followed the bellying stretches out.

The tobacco product with the telescopic filter stick has the following advantages:

(1) the movable section of the tobacco product is axially provided with a plurality of first air holes, when the movable section moves on the fixed section, the height of the filter tip section on the tobacco-approaching section is driven to change, and the number of the first air holes exposed outside is also changed, so that the adjustment of the air mixing amount in the smoke is completed;

(2) when the second tipping paper of the tobacco product moves on the cigarette approaching section, the second air holes communicated with the moving section are increased or reduced, so that the air mixing amount in the smoke is further adjusted;

(3) when the moving section of the tobacco product moves outwards to the opening end of the third cavity in the third cavity, the stopping part is matched with the protruding part, and the protruding part limits the moving section, so that the moving section is prevented from being drawn out from the opening section of the third cavity when the air mixing amount in smoke is adjusted, and the filter tip section is separated from the cigarette approaching section, and cigarettes cannot be used;

(4) the tobacco product also comprises a limiting mechanism which automatically limits the moving section when the number of the first air holes exposed outside changes every time the moving section moves a certain distance in the fixed section, so that the moving section is kept at the position in the fixed section under the action of no external force;

(5) the limiting mechanism of the tobacco product comprises a plurality of circular arc-shaped grooves and marbles, wherein the marbles are matched with the circular arc-shaped grooves, so that the circular arc-shaped grooves limit the protruding part, and the moving section is kept at the position in the fixed section; when a force is applied to the filter segment, the bead contracts within the boss, allowing the mobile segment to move within the fixed segment.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to indicate like elements.

FIG. 1 is a schematic view of a filter-tipped tobacco product according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a second tipping paper of a filter rod retractable tobacco product without wrapping;

FIG. 3 is a schematic cross-sectional view of a rod-retractable tobacco product in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a fixed segment of a filter rod retractable tobacco product according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a moving segment of a filter rod retractable tobacco product according to an embodiment of the utility model.

In the figure: 1. a cigarette smoking segment; 2. a tobacco-approaching segment; 21. a first tow; 22. a first forming paper; 3. a filter section; 31. a second tow; 32. a second formed paper; 4. an adjustment member; 41. a fixed section; 411. a stopper portion; 412. a circular arc-shaped groove; 42. a moving section; 421. a first air vent; 422. a boss portion; 423. a marble; 5. a first tipping paper; 6. a second tipping paper; 61. and a second air hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts will fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a tobacco product with a telescopic filter stick according to an embodiment of the present invention includes a cigarette smoking section 1, a near cigarette section 2 close to the cigarette smoking section 1, and a filter section 3 far from the cigarette smoking section 1, where one end of the near cigarette section 2 is connected to the cigarette smoking section 1, the filter section 3 is disposed at the other end of the near cigarette section 2, and an adjusting part disposed in the near cigarette section 2 and the filter section 3 and used for adjusting the height of the filter section 3 on the near cigarette section 2, the adjusting part includes a fixed section 41 fixed in the near cigarette section 2, and a moving section 42 fixed in the filter section 3, when the moving section 42 moves on the fixed section 41, the moving section 42 drives the height of the filter section 3 on the near cigarette section 2 to change, and a plurality of first ventilation holes 421 are axially disposed on the moving section 42.

This tobacco products comprises cigarette section of fuming 1, nearly cigarette section 2 and filter tip section 3 three-sections, and cigarette section of fuming 1 is the part of releasing out tobacco smoke when the tobacco heating, and the one end and the cigarette section of fuming 1 of nearly cigarette section 2 are connected, and filter tip section 3 is established and is kept away from the one end of cigarette section of fuming 1 at nearly cigarette section 2. In this application, the filter comprises a tobacco-near segment 2 and a filter segment 3, and the filter segment 3 is connected with the tobacco-near segment 2 by the movable segment 42 movably connected with the fixed segment 41, and the filter segment 3 comprises a fixed segment 41 fixed in the tobacco-near segment 2 and a movable segment 42 fixed in the filter segment 3. Because the moving section 42 is axially provided with the first air holes 421, when the moving section 42 moves on the fixed section 41, the height of the filter tip section 3 on the cigarette approaching section 2 is driven to change, and the number of the first air holes 421 exposed outside is also changed, so that the air inflow of cigarettes is adjusted, and the adjustment of the air mixing amount in the smoke is further completed.

In this embodiment, the cigarette approaching section 2 includes a first tow 21 having a first cavity therein for inserting the fixing section 41, and a first forming paper 22 wrapped around the first tow 21 for forming the first tow 21. The smoke-proximal segment 2 comprises a first tow 21 and a first forming paper 22, wherein a first cavity with one open end is arranged in the first tow 21 and is used for inserting the fixing segment 41 into the first tow 21 and fixing the fixing segment in the first tow 21. The first tow 21 is generally made of acetate fibers, and because the tow made of the acetate fibers is used as a cigarette filter material, the cigarette filter material has the advantages of good elasticity, no toxicity, no odor, good thermal stability, small suction resistance, remarkable filtering effect, capability of selectively absorbing harmful ingredients in cigarettes and retention of certain nicotine without losing the taste of the cigarettes. However, since the acetate fibers are fluffy and cannot be formed, it is necessary to wrap the first forming paper 22 outside the first tow 21 made of acetate fibers and roll the first tow 21 into a cylindrical shape to facilitate the suction of the filter.

The filter segment 3 comprises a second tow 31 provided with a second cavity therein for inserting the moving segment 42, and a second forming paper 32 wrapped on the periphery of the second tow 31 for forming the second tow 31. Similarly, the filter segment 3 comprises a second tow 31 and a second forming paper 32, a cavity with one open end is arranged in the second tow 31 and is used for inserting the moving segment 42, one end of the moving segment 42 is fixed in the second cavity, the moving segment 42 and the filter segment 3 are in an integrated structure, and when the moving segment 42 moves, the filter segment 3 is driven to move. The second tows 31 are also made of acetate fibers, and the second tows 31 are wrapped on the periphery of the second tows 31 through second forming paper 32, and are rolled into the same cylindrical shape as the first tows 21.

In this embodiment, still include respectively wrap up in a cigarette section of fuming 1 one end and 2 one ends of nearly cigarette section, be used for connecting a cigarette section of fuming 1 and a first china cypress paper 5 of nearly cigarette section of fuming 2. The cigarette is used for connecting the cigarette smoking section 1 and the cigarette approaching section 2 together by wrapping a layer of first tipping paper 5 at one end of the cigarette smoking section 1 and one end of the cigarette approaching section 2 respectively. Because in this tobacco products, cigarette smoking section 1 is the part that is used for loading the pipe tobacco, and nearly cigarette section 2 and filter tip section 3 constitute the part of a cigarette filter, after the one end of cigarette smoking section 1 was lighted, smokes in the one end of filter tip section 3, and the flue gas that the pipe tobacco in cigarette smoking section 1 sent reaches filter tip section 3 through nearly cigarette section 2, reaches people's oral cavity again. In order to ensure the efficiency of the smoke from the cigarette smoking section 1 to the cigarette approaching section 2, the cigarette smoking section 1 and the cigarette approaching section 2 need to be tightly wrapped together through the first tipping paper 5, and the end part of the cigarette smoking section 1 is attached to the end part of the cigarette approaching section 2.

Still including wrapping up second tipping paper 6 at 3 one ends of filter segment and the 2 other ends of nearly cigarette section respectively, second tipping paper 6 is in the same place with the one end bonding of filter segment 3, and with the other end of nearly cigarette section 2 not adhesion, when filter segment 3 highly changes on nearly cigarette section 2, second tipping paper 6 follows filter segment 3 and moves on nearly cigarette section 2. The other end of the filter segment 3 and the proximal tobacco segment 2 is wrapped with a second tipping paper 6, but the second tipping paper 6 does not serve to connect the filter segment 3 and the proximal tobacco segment 2 together, but rather adheres to the filter segment 3 and does not adhere to the proximal tobacco segment 2, and when the height of the filter segment 3 on the proximal tobacco segment 2 changes, the second tipping paper 6 follows the filter segment 3 to move on the proximal tobacco segment 2.

Because fixed segment 41 is pegged graft in nearly cigarette section 2, remove the section 42 and peg graft in filter section 3, filter section 3 and nearly cigarette section 2 are connected together through removing section 42 and fixed segment 41, therefore the cross-sectional diameter of fixed segment 41 will be less than the cross-sectional diameter of nearly cigarette section 2, the cross-sectional diameter of removal section 42 is less than the cross-sectional diameter of nearly cigarette section 2, in order to prevent removing section 42 when removing on fixed segment 41, the cigarette filter part appears obvious layering phenomenon, influence the outward appearance effect of cigarette, wrap up second china cypress paper 6 on filter section 3 and nearly cigarette section 2, make its circle surround fixed segment 41 and removal section 42 periphery, because the thickness of china cypress paper is thinner, so when second china cypress paper 6 moves on fixed segment 41 along with filter section 3, can not cause great influence to cigarette outward appearance.

In this embodiment, a plurality of second ventilation holes 61 are axially formed in a part of the second tipping paper 6, which surrounds the other end of the cigarette section 2. In order to prevent significant delamination of the tobacco filter portions, the filter segment 3 and the proximal tobacco segment 2 are of the same cross-sectional diameter, and a second tipping paper 6 is wrapped around one end of the filter segment 3 and the other end of the proximal tobacco segment 2, respectively, although the second tipping paper 6 is not adhered to the proximal tobacco segment 2, but is also adhered to the surface of the proximal tobacco segment 2. Because 6 circles of second china cypress paper enclose in the periphery of fixed segment 41 and removal section 42, the outside air needs to arrive the first bleeder vent 421 that removes section 42 through the first china cypress paper of second china cypress paper 6 earlier, and the efficiency that the air passes through can be hindered greatly to the second china cypress paper 6 with nearly cigarette section 2 and the laminating of filter section 3 surface, consequently is equipped with a plurality of second bleeder vents 61 in 6 circles of second china cypress paper in the part of nearly cigarette section 2 also axial, is used for accelerating the efficiency that the outside air passes through second china cypress paper 6. When the second tipping paper 6 moves on the near smoke segment 2, the second air holes 61 communicated with the moving segment 42 are increased or decreased, so that the air mixing amount in the smoke is further adjusted.

The fixed section 41 is provided with a third cavity with an open end for inserting the movable section 42. A third cavity with an open end is arranged in the fixed section 41, and the movable section 42 is inserted into the third cavity from the open end of the third cavity, so that the movable section 42 is connected with the fixed section 41. The moving section 42 is inserted into the third cavity and can move along the third cavity, so that the plurality of first air holes 421 axially arranged on the moving section 42 are gradually and sequentially exposed outside when the moving section 42 moves outwards along the third cavity, and outside air can enter the moving section 42 through the plurality of first air holes 421 to be mixed with smoke; as the moving section 42 moves inward along the third cavity, the plurality of first ventilation holes 421, which are exposed to the outside, are gradually and sequentially drawn into the third cavity, thereby reducing the mixing of the external air and the smoke in the moving section 42.

In this embodiment, the open end of the third cavity is provided with a stopping portion 411, the moving section 42 is inserted into one end of the third cavity and provided with a protruding portion 422, and when the moving section 42 moves to the open end of the third cavity, the stopping portion 411 is matched with the protruding portion 422 to prevent the moving section 42 from being drawn out from the third cavity. A stopping part 411 is arranged at the open end of the third cavity, a protruding part 422 is arranged at one end of the moving section 42, and the end of the moving section 42 provided with the protruding part 422 is inserted into the third cavity. When the moving section 42 moves outwards to the open end of the third cavity in the third cavity, the stopping portion 411 is matched with the protruding portion 422, the protruding portion 422 limits the moving section 42, and when the air mixing amount in the smoke is prevented from being adjusted, the moving section 42 is drawn out from the open section of the third cavity, so that the filter tip section 3 is separated from the cigarette approaching section 2, and the cigarette cannot be used.

The device also comprises a limiting mechanism which can automatically limit the moving section 42 after the moving section 42 moves for a certain distance in the fixed section 41, and when acting force is applied to the moving section 42, the limiting mechanism releases the limiting on the moving section 42. In this application, the amount of air mixing in the flue gas is adjusted by moving the moving section 42 in the fixed section 41, so that the first air holes 421 axially arranged on the moving section 42 are sequentially exposed from the third cavity or sequentially retracted into the third cavity. After the number of the first air holes 421 exposed outside is adjusted according to the requirement, the movable section 42 is kept at the position in the fixed section 41 to enable the cigarette to reach the specified required air mixing amount during smoking, so that the tobacco product further comprises a limiting mechanism which automatically limits the movable section 42 when the number of the first air holes 421 exposed outside changes every time the movable section 42 moves a certain distance in the fixed section 41, thereby enabling the movable section 42 to be kept at the position in the fixed section 41 without the action of external force. When the amount of air mixing in the cigarettes needs to be adjusted, the limiting mechanism releases the limit of the moving section 42 by applying an acting force to the moving section 42, so that the moving section 42 can move in the fixed section 41.

In this embodiment, the limiting mechanism includes a plurality of arc-shaped grooves 412 axially and equidistantly arranged on the inner wall of the third cavity, and a marble 423 arranged on the protrusion 422; when the ball 423 is pressed, the ball 423 is retracted in the boss 422, and when the ball 423 is released, the ball 423 is protruded from the boss 422. A plurality of arc-shaped grooves 412 are axially and equidistantly arranged on the inner wall of the third cavity, a marble 423 is arranged on the boss 422, and when the boss 422 moves in the third cavity, the marble 423 is abutted against the inner wall of the third cavity, so that the marble 423 is contracted in the boss 422; when the protrusion 422 moves to a position where one of the circular arc grooves 412 is located, the ball 423 loses its compression and automatically extends out of the protrusion 422 to be engaged with the circular arc groove 412, so that the circular arc groove 412 limits the protrusion 422, and the movable section 42 is maintained at the position in the fixed section 41. When it is desired to move the moving segment 42 in the fixed segment 41, a force is exerted on the filter segment 3, so that the side walls of the circular arc-shaped grooves 412 press the balls 423 to be retracted in the raised portions 422, thereby enabling the moving segment 42 to move in the fixed segment 41.

The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A tobacco product with a telescopic filter stick is characterized in that: the cigarette filter comprises a cigarette smoking section (1), a near cigarette section (2) close to the cigarette smoking section (1), a filter tip section (3) far away from the cigarette smoking section (1), and an adjusting piece (4) arranged in the near cigarette section (2) and the filter tip section (3) and used for adjusting the height of the filter tip section (3) on the near cigarette section (2); nearly cigarette section (2) one end is connected with cigarette section of fuming (1), filter tip section (3) are located the other end of nearly cigarette section (2), regulating part (4) are including fixing canned paragraph (41) in nearly cigarette section (2), and fix removal section (42) in filter tip section (3), remove section (42) and be in when moving on canned paragraph (41), drive filter tip section (3) are in highly change on nearly cigarette section (2), the axial is equipped with a plurality of first bleeder vents (421) on removal section (42).

2. A rod-retractable tobacco product as claimed in claim 1, wherein: the cigarette approaching section (2) comprises a first tow (21) with a first cavity arranged therein and first forming paper (22) wrapping the periphery of the first tow (21), the fixing section (41) is inserted into the first cavity, and the first forming paper (22) is used for forming the first tow (21).

3. A rod-retractable tobacco product as claimed in claim 1, wherein: the filter tip section (3) comprises a second tow (31) with a second cavity arranged therein and second forming paper (32) wrapping the periphery of the second tow (31), the moving section (42) is inserted into the second cavity, and the second forming paper (32) is used for forming the second tow (31).

4. A rod-retractable tobacco product as claimed in claim 1, wherein: the cigarette is characterized by further comprising a first tipping paper (5) which is wrapped on one end of the cigarette smoking section (1) and one end of the near cigarette section (2) respectively and is used for connecting the cigarette smoking section (1) and the near cigarette section (2).

5. A rod-retractable tobacco product as claimed in claim 1, wherein: still including wrapping up respectively filter segment (3) one end with second china cypress paper (6) of nearly cigarette section (2) other end, second china cypress paper (6) with the one end of filter segment (3) is glued together, with the other end of nearly cigarette section (2) is not the adhesion, filter segment (3) are in when highly changing on nearly cigarette section (2), second china cypress paper (6) are followed filter segment (3) are in move on nearly cigarette section (2).

6. A rod-retractable tobacco product as claimed in claim 5, wherein: the second tipping paper (6) is encircled at the part of the other end of the cigarette approaching section (2) and is axially provided with a plurality of second air holes (61).

7. A rod-retractable tobacco product as claimed in claim 1, wherein: the fixed section (41) is provided with a third cavity with an opening at one end for inserting the movable section (42).

8. A rod-retractable tobacco product as claimed in claim 7, wherein: the open end of the third cavity is provided with a stopping part (411), one end of the moving section (42) inserted into the third cavity is provided with a protruding part (422), and when the moving section (42) moves to the open end of the third cavity, the stopping part (411) is matched with the protruding part (422) to prevent the moving section (42) from being drawn out of the third cavity.

9. A rod-retractable tobacco product as claimed in claim 8, wherein: the device is characterized by further comprising a limiting mechanism for automatically limiting the moving section (42) after the moving section (42) moves for a certain distance in the fixed section (41), wherein when acting force is applied to the moving section (42), the limiting mechanism releases the limiting of the moving section (42).

10. A rod-retractable tobacco product as claimed in claim 9, wherein: the limiting mechanism comprises a plurality of arc-shaped grooves (412) which are axially arranged on the inner wall of the third cavity at equal intervals, and marbles (423) which are arranged on the protruding part (422); when the marble (423) is pressed, the marble (423) is contracted in the boss (422), and when the marble (423) is released, the marble (423) extends out of the boss (422).

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