Low-temperature smoking device

Abstract

The present invention discloses a low-temperature smoking device, which includes a housing, a heating element, a pressing member and an elastic element. A heating cavity for inserting a tobacco product is formed on the housing; the heating element is arranged in the housing and the heating end extends into the heating cavity. The pressing member is arranged on the housing and can drive the heating element to move relative to the heating cavity from a first position to a second position. The elastic element is connected between the pressing member and the housing to drive the pressing member and the heating element to reset when the pressing member is released; an elastic claw is provided on the pressing member, and a clamping groove adapted to the elastic claw is provided on the side wall of the heating cavity; when the heating element is in the first position, the heating element is inserted into the tobacco product, and the elastic claw is clamped into the clamping groove to tightly hold the tobacco product; when the heating element is in the second position, the heating element withdraws from the tobacco product, and the elastic claw is separated from the clamping groove. The present invention has a function of tightly holding a cigarette and can effectively prevent tobacco shreds from adhering to the heating element.

Description

Technical Field

[0001] The present invention belongs to the technical field of smoking articles, and particularly relates to a low-temperature smoking device. Background Art

[0002] At present, the electronic smoking devices on the market mainly include two types, such as electronic cigarettes that form smokable mists by evaporating e-liquids and low-temperature cigarettes that form smokable mists by heating / distilling tobacco materials at a low temperature (150 - 300 degrees). Compared with traditional combustible cigarettes, electronic cigarettes and low-temperature cigarettes have a lower working temperature, and the harmful components in the mists generated by the e-liquids or low-temperature cigarette sticks they use are far less than those in traditional combustible cigarettes. Therefore, using electronic cigarettes or low-temperature cigarettes can greatly avoid the adverse effects of cigarettes on the human body.

[0003] Patent CN2018221100094 discloses a low-temperature heating type smoking device. By arranging elastic claws at the cigarette stick insertion end of the heating cavity, when the low-temperature cigarette stick is inserted into the heating cavity from the cigarette insertion port, it first needs to be held tightly by the elastic claws and inserted into the heating cavity under the continuous holding of the elastic claws, so as to effectively prevent the cigarette stick from being pulled out during suction. In addition, the structure of the bayonet surrounded by the elastic claws is large at both ends and small in the middle. Therefore, when the cigarette stick exits from the bayonet, it can effectively prevent the free ends of the elastic claws from piercing into the cigarette stick and hindering the extraction of the cigarette stick. When the above patent withdraws the cigarette stick, the cigarette stick is forcibly pulled out from the elastic claws, resulting in problems such as deformation and damage of the cigarette stick. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, one of the purposes of the present invention is to provide a low-temperature smoking device with a cigarette stick holding function and capable of effectively preventing tobacco shreds from adhering to the heating element.

[0005] To solve the above technical problems, this application adopts the following technical solutions:

[0006] A low-temperature smoking device, comprising:

[0007] A housing, on which a heating cavity for inserting a tobacco product is formed;

[0008] A heating element, arranged in the housing and having a heating end extending into the heating cavity;

[0009] It further comprises:

[0010] A pressing member, arranged on the housing and capable of driving the heating element to move relative to the heating cavity from a first position to a second position;

[0011] An elastic element, connected between the pressing member and the housing to drive the pressing member and the heating element to reset when the pressing member is released;

[0012] The pressing member is provided with elastic claws, and a clamping groove adapted to the elastic claws is provided on the side wall of the heating cavity;

[0013] When the heating element is in the first position, the heating element is inserted into the tobacco product, and the elastic claws are clamped into the clamping groove to tightly hold the tobacco product; when the heating element is in the second position, the heating element withdraws from the tobacco product, and the elastic claws are separated from the clamping groove.

[0014] Furthermore, it further includes a spring top bead connected to the heating element to lock it in the first position, and a limiting groove cooperating with the spring top bead is provided on the housing; wherein,

[0015] When the heating element is in the first position, the spring top bead is movably abutted against the limiting groove; when the heating element is in the second position, the spring top bead is separated from the limiting groove.

[0016] Furthermore, the heating cavity has opposite first and second ends; wherein,

[0017] The first end is used for inserting the tobacco product, the second end is a closed end with a perforation, and the heating end of the heating element matches and passes through the perforation.

[0018] Furthermore, the pressing member is a pressing sleeve slidably sleeved outside the heating cavity and connected to the heating element, and a guiding mechanism for guiding the moving direction of the pressing sleeve is provided in the housing.

[0019] Furthermore, a plurality of the elastic claws are arranged along the circumferential direction of the cross-section of the heating cavity.

[0020] Furthermore, the guiding mechanism is a guiding sleeve coaxially installed with the heating cavity, the mounting seat of the heating element is movably arranged in the guiding sleeve, a guiding groove parallel to the insertion direction of the tobacco product is provided on the guiding sleeve, and a guiding block matching and passing through the guiding groove and connected to the pressing sleeve is provided on the mounting seat.

[0021] Furthermore, the spring top beads are arranged in pairs on the side of the mounting seat, and the limiting grooves are arranged on the guiding sleeve.

[0022] Furthermore, a plurality of the guiding grooves are arranged along the circumferential direction of the cross-section of the guiding sleeve.

[0023] Furthermore, the housing includes a lower shell and a central cigarette tube installed on the top of the lower shell, the inner cavity of the central cigarette tube forms the heating cavity, and the guiding sleeve is fixedly installed at the bottom end of the central cigarette tube.

[0024] Further, a partition for closing the bottom end of the central cigarette tube is provided inside the guiding sleeve, and the heating end of the heating element extends through the partition into the central cigarette tube.

[0025] Further, a power supply assembly for supplying power to the heating element is provided in the lower housing.

[0026] Further, control buttons are also provided on the lower housing.

[0027] Compared with the prior art, the advantages of the present invention are as follows:

[0028] After tobacco products such as cigarette sticks are used up, press the pressing member with a finger, drive the heating element to move along the insertion direction of the cigarette stick, so that the heating element is separated from the tobacco product. At the same time, the elastic claws are elastically deformed and expanded to disengage from the card slots, and the tobacco product is released. The tobacco product can be smoothly pulled out from the heating cavity, and at the same time, the problem of tobacco shreds sticking is effectively solved; after the tobacco product is pulled out, release the finger pressing the pressing member, and under the action of the restoring force of the elastic element, the pressing member and the heating element are reset, and the elastic claws also slide into the card slots on the side of the heating cavity immediately. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is an axonometric view of the present invention;

[0031] Figure 3 is an exploded view of the present invention;

[0032] Figure 4 is a schematic diagram of the state where the heating element is inserted into the heating cavity;

[0033] Figure 5 is Figure 4 the enlarged view at A in

[0034] Figure 6 is a schematic diagram of the state where the heating element exits the heating cavity;

[0035] Figure 7 is Figure 6 the enlarged view of B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Refer to Figures 1 - 3, A low-temperature smoking device, comprising a housing 1, a heating element 2, a battery 3 and a PCB board 4 disposed within the housing 1. The battery 3 is connected to the PCB board 4, and the PCB board 4 is connected to the heating element 2, thus forming a heating control circuit. A button 5 is further provided on the side of the housing 1. By pressing the button 5, the on / off of the heating control circuit can be controlled, and thus the power supply to the heating element 2 can be controlled. Among them, the battery 3 can be a nickel-metal hydride battery, a lithium-ion battery, etc. When a rechargeable battery 3 is used, a charging port needs to be provided on the housing 1. In addition, a vibration motor can be provided in the housing 1 to prompt charging information.

[0038] See Figure 1 and Figure 2 , a heating cavity 6 for inserting a tobacco product is formed at the top of the housing 1 of the low-temperature smoking device in this embodiment. Among them, the tobacco product 7 can be a low-temperature cigarette or a cartridge, etc., which is a structure made of a smoking material. In this embodiment, a low-temperature cigarette is used for exemplary illustration.

[0039] The top opening end of the heating cavity 6 of the low-temperature smoking device is the cigarette insertion end, and the bottom is a closed end. A perforation for inserting the heating element 2 is formed on the closed end. The heating element 2 is installed in the housing 1 at the bottom of the heating cavity 6 through a mounting seat 8, and the heating end extends through the perforation into the heating cavity 6. When the cigarette is inserted into the heating cavity 6, the filter tip of the cigarette is exposed outside the housing 1 for the user to hold and suck. During the insertion of the cigarette, the heating end of the heating element 2 will correspondingly insert into the cigarette, thereby heating the smoking material in the cigarette to generate smoke for the user to suck. The air flow enters from the side of the heating cavity 6 and the cigarette, and the smoke generated by heating the smoking material at the bottom of the cigarette is brought to the user's mouth from the filter tip at the top of the cigarette.

[0040] In this embodiment, the bottom end of the heating cavity 6 is set as a closed end. On the one hand, it can limit the insertion depth of the cigarette. On the other hand, it can also collect residues such as tobacco shreds that fall after smoking in the heating cavity 6. After the cigarette is pulled out, by pouring the smoking device, the residues can be poured out of the smoking device, and the residues will not enter other structures of the smoking device, and it is relatively convenient to clean the smoking device. It should be explained here that the second end of the heating cavity 6 can also be set as an open end, but there will be problems such as the inability to limit the insertion depth of the cigarette and the difficulty in cleaning the smoking device.

[0041] See Figure 1 and Figure 2 , the low-temperature smoking device further includes a pressing member 9 disposed in the housing 1 and capable of driving the heating element 2 to move relative to the heating cavity 6 along the insertion direction of the tobacco product, and an elastic element 10 connected between the mounting seat 8 and the housing 1 to drive the pressing member 9 and the heating element 2 to reset when the pressing member 9 is released. Elastic claws 11 are provided on the pressing member 9, and a clamping groove 12 adapted to the elastic claws 11 is provided on the side wall of the heating cavity 6.

[0042] Among them, the elastic claws 11 on the pressing member 9 can be snapped into the slot 12 on the side of the heating chamber 6. The parameters for the elastic claws 11 to snap in are matched according to the size of the cigarette. For example, when the diameter of the cigarette is 7.6 mm, the diameter after the elastic claws 11 are snapped into the slot 12 should be smaller than the size of the cigarette to achieve the effect of grasping the cigarette.

[0043] In this embodiment, the heating element 2 can be driven by the pressing member 9 to move relative to the heating chamber 6 from the first position to the second position. When the heating element 2 is in the first position, the heating element 2 is inserted into the tobacco product, and the elastic claws 11 are snapped into the slot 12 to hold the tobacco product tightly; when the heating element 2 is in the second position, the heating element 2 withdraws from the tobacco product, and the elastic claws 11 are separated from the slot 12.

[0044] Preferably, to ensure that the elastic claws 11 can smoothly snap into or out of the slot 12, the elastic claws 11 are inclined towards the heating chamber 6.

[0045] See Figures 4 - 7 , the process of changing cigarettes for the low-temperature smoking device in the above embodiment is as follows: When the cigarette is finished, manually press the pressing member 9 to drive the heating element 2 to retreat (that is, move from the first position to the second position), so that the cigarette is separated from the heating element 2; in addition, while pressing the pressing member 9, the elastic claws 11 retreat under the pressing force. Since the heating chamber 6 is in a stationary state, the elastic claws 11 of the pressing member 9 rub against the side wall of the heating chamber 6. As shown by the arrow, the elastic claws 11 deform outward. At this time, the cigarette is separated from the holding mode, and the cigarette can not only be smoothly pulled out from the heating chamber 6, but also the problem of tobacco sticking to the heating element 2 is solved. After the cigarette is pulled out, release the finger pressing the pressing member 9. Under the action of the restoring force of the elastic element 10, the pressing member 9 and the heating element 2 are reset, and the elastic claws 11 also slide into the slot 12 on the side of the heating chamber 6 immediately.

[0046] To ensure the reliability of holding the cigarette tightly, a plurality of elastic claws 11 can be arranged along the circumferential direction of the cross-section of the heating chamber 6. In addition, to facilitate the elastic claws 11 to withdraw from the slot 12, the elastic claws 11 and the slot 12 are matched with inclined surfaces.

[0047] See Figure 1 and Figure 2, for the low-temperature smoking device with the above structure, when inserting a cigarette for smoking, since the heating element 2 is mainly elastically supported by the elastic element 10 and the elastic claw 11, if the downward pressure is greater than the supporting force of the elastic element 10 and the locking force of the elastic claw 11, the heating element 2 will move along the insertion direction of the cigarette during the cigarette insertion process. Therefore, it will affect the baking taste of the cigarette by the smoking device. To prevent the heating element 2 from moving backward during the cigarette insertion process, the low-temperature smoking device further includes a spring top bead 13 for locking the heating element 2 at the first position. The spring top bead 13 is arranged on the heating element 2, and a limiting groove 14 adapted to the spring top bead 13 is provided on the housing 1. When the heating element 2 is at the first position, the spring top bead 13 is in movable contact with the limiting groove 14, thereby locking the heating element 2 at the first position. Here, the resistance of the spring top bead 13 needs to be adjusted to be greater than the force of the cigarette inserted into the heating element 2.

[0048] When it is necessary to remove the cigarette, manually press the pressing member 9. As the pressing force continuously increases, when the downward pressure is greater than the forces of the side spring top bead 13, the elastic claw 11, and the central elastic element 10, the heating element 2 together with the mounting seat 8 moves downward. The steel ball 1301 of the spring top bead 13 retracts into the spring top bead housing under the drive of the pressing member 9, and then disengages from the limiting groove 14 to achieve unlocking. As the pressing continues, the heating element 2 moves downward under the drive of the pressing member 9 and compresses the elastic element 10 until it disengages from the cigarette (the heating element is at the second position). At this time, pulling out the cigarette can effectively prevent the tobacco shreds from sticking to the heating element 2; when the cigarette is pulled out, release the pressing member 9, and the heating element 2 and the pressing member 9 move upward and reset under the elastic force of the elastic element 10. When the heating element 2 moves to the first position, at this time, the steel ball 1301 of the spring top bead 13 extends out of the housing 1 of the spring top bead 13 under the action of its internal spring 1302 and re-enters the limiting groove 14 to lock the heating element 2 at the first position.

[0049] It should be noted that the cigarette can be set into a two-section structure composed of a tobacco section and a filter section, or can also be set into a three-section structure composed of a tobacco section, a condensation section, and a filter section. Since the two-section structure cigarette is provided with a condensation section, the temperature of the smoke entering the user's mouth can be effectively reduced, and thus the suction taste is better than that of the two-section structure cigarette.

[0050] See Figure 1 and Figure 2In some embodiments, the shell 1 includes a lower shell 101 and a central smoke tube 102 installed on the top of the lower shell 101. The inner cavity of the central smoke tube 102 directly constitutes the heating chamber 6. The pressing piece 9 is a pressing sleeve that is coaxially slidably sleeved outside the central smoke tube 102. The bottom end of the pressing sleeve extends into the lower shell 101 and is fixedly connected to the mounting seat 8 in the lower shell 101. A limiting step is also provided on the outside of the pressing sleeve to limit the pressing formation. When the limiting step abuts against the top of the lower shell 101, it is the maximum pressing stroke of the pressing sleeve.

[0051] In this embodiment, the heating element 2 is fixedly mounted on the mounting seat 8. After smoking the cigarette, the mounting seat 8 and the heating element 2 can be moved downward by pressing the pressing sleeve with the thumb to drive the mounting seat 8 and the heating element 2 to separate from the cigarette and compress the elastic element 10. At this time, the cigarette can be pulled out to effectively solve the problem of tobacco sticking. The mounting seat 8 drives the pressing sleeve and the heating element 2 to move upward and reset under the reset force of the elastic element 10 by releasing the thumb. It can be imagined that the elastic element 10 can be a coil spring, and of course a rubber elastic element can also be used.

[0052] See also Figure 3 In other embodiments, a guide mechanism for guiding the moving direction of the pressing sleeve is further provided in the housing 1. Specifically, the guide mechanism is a coaxial sleeve provided with a guide sleeve 15 at the bottom end of the central smoke tube 102, a partition is provided in the guide sleeve 15 to close the bottom end of the central smoke tube 102, and a through hole is provided on the partition for the heating element 2 to penetrate, the guide sleeve 15 is fixedly installed in the lower housing 101 and provided with a guide groove 16 parallel to the cigarette insertion direction, the mounting seat 8 is installed in the guide sleeve 15 and has a matching guide block 17 that passes through the guide groove 16 and is connected to the pressing sleeve.

[0053] To ensure the reliability of the guide, generally multiple guide grooves 16 are arranged along the circumferential direction of the cross section of the guide sleeve 15, such as two in this embodiment. Of course, the guide mechanism can also adopt other structures with guide functions such as guide rails, which will not be repeated here.

[0054] See also Figures 4 - 7 In this embodiment, a guide sleeve 15 is provided in the lower shell 101, which can guide the pressing direction of the pressing sleeve, and can effectively prevent the pressing sleeve from getting stuck during the movement, causing pressing failure; after releasing the thumb, the mounting seat 8 drives the pressing sleeve and the heating element 2 to move up and reset under the reset force of the elastic element 10 until the elastic claw is inserted into the slot and the spring top bead 13 is inserted into the limiting groove 14. At this time, the heating end of the heating element 2 is inserted into the heating chamber 6, and the user can smoke the next round of cigarettes.

[0055] To ensure the reliability of locking, the spring beads 13 are arranged in pairs on the side of the mounting seat 8, the limiting groove 14 is arranged on the guide sleeve 15, and the pressing sleeve is composed of an upper cover 901 and a cigarette-grabbing rod 902 that are sequentially connected from top to bottom.

[0056] In practical applications, the heating element 2 can be designed into a sheet shape or a rod shape. The sheet-shaped or rod-shaped heating element can be provided with a plurality of heating sections having independent heating functions along the circumferential direction of the cross-section of the heating cavity 6. In this way, by heating in sections, the situation that the same part of the tobacco product is overheated and charred for a long time is avoided, the user's taste is enhanced, the effective utilization rate of the tobacco product is improved, and waste is reduced.

[0057] The above embodiments are merely examples clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. Low-temperature smoking device, comprising: A housing on which a heating chamber for inserting a tobacco product is formed; A heating element disposed within the housing and having a heating end extending into the heating chamber; Characterized in that it further comprises: A pressing member disposed on the housing and capable of driving the heating element to move relative to the heating chamber from a first position to a second position; An elastic element connected between the pressing member and the housing to drive the pressing member and the heating element to reset when the pressing member is released; The pressing member is provided with elastic claws, and the side wall of the heating chamber is provided with a card slot adapted to the elastic claws; When the heating element is in the first position, the heating element is inserted into the tobacco product, and the elastic claws are snapped into the card slots to tightly hold the tobacco product; When the heating element is in the second position, the heating element withdraws from the tobacco product, and the elastic claws are separated from the card slots; The heating chamber has opposite first and second ends; wherein, The first end is for inserting the tobacco product, the second end is a closed end with a perforation, and the heating end of the heating element matches and passes through the perforation; The pressing member is a pressing sleeve slidably sleeved outside the heating chamber and connected to the heating element, and a guiding mechanism for guiding the moving direction of the pressing sleeve is provided in the housing.

2. The low-temperature smoking device according to claim 1, wherein: It further comprises a spring top bead connected to the heating element to lock it in the first position, and a limiting groove cooperating with the spring top bead is provided on the housing; wherein, When the heating element is in the first position, the spring top bead is in movable contact with the limiting groove; when the heating element is in the second position, the spring top bead is separated from the limiting groove.

3. The low-temperature smoking device according to claim 2, wherein: A plurality of the elastic claws are arranged along the circumferential direction of the cross-section of the heating chamber.

4. The low-temperature smoking device according to claim 2, wherein: The guiding mechanism is a guiding sleeve coaxially installed with the heating chamber, the mounting seat of the heating element is movably arranged in the guiding sleeve, the guiding sleeve is provided with guiding grooves parallel to the insertion direction of the tobacco product, and the mounting seat is provided with guiding blocks that match and pass through the guiding grooves and are connected to the pressing sleeve.

5. The low-temperature smoking device according to claim 4, characterized in that: The spring top beads are arranged in pairs on the side of the mounting seat, and the limiting grooves are arranged on the guiding sleeve.

6. The low-temperature smoking device according to claim 4, wherein: A plurality of the guiding grooves are arranged along the circumferential direction of the cross-section of the guiding sleeve.

7. The low-temperature smoking device according to claim 4, wherein: The housing comprises a lower housing and a central cigarette tube installed on the top of the lower housing, the inner cavity of the central cigarette tube constitutes the heating chamber, and the guiding sleeve is fixedly installed at the bottom end of the central cigarette tube.

8. The low-temperature smoking device according to claim 7, wherein: A partition for closing the bottom end of the central cigarette tube is provided in the guiding sleeve, and the heating end of the heating element passes through the partition and extends into the central cigarette tube.

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