Low-temperature smoking device with automatic cigarette clamping

Abstract

The present invention discloses a low-temperature cigarette with automatic cigarette clamping, which includes a cigarette holder housing. An inner part of the cigarette holder housing forms a heating cavity for accommodating cigarette sticks. A plurality of through holes are evenly distributed on a side wall of the heating cavity along a circumferential direction of its cross section. An elastic diaphragm is provided on each of the through holes. A top block is further provided outside the heating cavity in the cigarette holder housing, which can cause the elastic diaphragm to elastically deform so as to clamp the cigarette sticks in the heating cavity. The present invention can effectively prevent the cigarette sticks from being taken out of the heating cavity during the suction process.

Description

Technical Field

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

[0002] When smoking a low-temperature cigarette, the cigarette needs to be inserted into the heating cavity of the device. And to ensure the reliability of heating, the cigarette generally cannot move during the smoking process. Ordinary low-temperature smoking devices on the market rely on the friction between the heating cavity and the cigarette to fix the cigarette, and this method has great drawbacks. When the cigarette and the heating cavity are in an interference fit, it is difficult to insert the cigarette into the heating cavity. If the cigarette and the heating cavity are in a clearance fit, consumers are very likely to accidentally pull out the cigarette from the heating cavity during the smoking process, affecting the consumers' experience. Moreover, this problem also leads to poor compatibility of the device with cigarettes of different sizes. Summary of the Invention

[0003] The main purpose of the present invention is to provide a low-temperature cigarette with automatic cigarette clamping, aiming to effectively prevent the cigarette from being taken out of the heating cavity during the smoking process.

[0004] To achieve the above object, the present application adopts the following technical solutions:

[0005] A low-temperature smoking device with automatic cigarette clamping, including a smoking device housing. A heating cavity for accommodating a cigarette is formed inside the smoking device housing. A plurality of through holes are evenly distributed along the circumferential direction of the cross-section of the side wall of the heating cavity. An elastic diaphragm is provided on each through hole. A top block for causing the elastic diaphragm to elastically deform to clamp the cigarette in the heating cavity is further provided outside the heating cavity in the smoking device housing.

[0006] Specifically, a heating element and a linear driving mechanism for driving the heating element to move are further provided in the smoking device housing. The heating element has a first position and a second position. Among them,

[0007] When the heating element is in the first position, the heating element is inserted into the heating cavity. When the heating element is in the second position, the heating element withdraws from the heating cavity.

[0008] Specifically, the top block is slidably installed in a guiding hole in the smoking device housing. A first inclined surface is provided at one end of the top block away from the elastic diaphragm. A top rod is further provided in the smoking device housing. A second inclined surface that slidably cooperates with the first inclined surface is provided on the top rod. The top rod pushes against the top block through the cooperation of the first inclined surface and the second inclined surface to force the elastic diaphragm to elastically deform.

[0009] Specifically, an elastic element is connected between the push rod and the smoking device housing, and the push rod pushes the push block under the elastic force provided by the elastic element to force the elastic diaphragm to undergo elastic deformation, and a shifting block matching with the mounting seat of the heating element is provided on the push rod;

[0010] When the heating element moves from the first position to the second position, the mounting seat pushes the shifting block to drive the push rod to move and compress the elastic element, and the push block is reset under the reset force of the elastic diaphragm;

[0011] When the heating element moves from the second position to the first position, the push rod pushes the push block under the action of the restoring force of the elastic element, forcing the elastic diaphragm to undergo elastic deformation.

[0012] Specifically, the heating chamber has a first end and a second end opposite to each other; wherein,

[0013] The first end is used for inserting the cigarette, and the second end is a closed end with a perforation, and the heating element is matched to pass through the perforation and inserted into the heating chamber.

[0014] Specifically, an air intake groove is formed on the inner bottom surface of the second end;

[0015] The airflow enters the air inlet groove from the first end through the side gap between the cigarette and the heating chamber, and finally flows out of the cigarette.

[0016] Specifically, an elastic sleeve is disposed outside the heating chamber, and the elastic sleeve and the side wall portion corresponding to the through hole constitute the elastic diaphragm.

[0017] Specifically, the linear drive mechanism adopts a screw lifting mechanism driven by a motor.

[0018] Specifically, the elastic sleeve is a silicone sleeve or a rubber sleeve.

[0019] Specifically, the heat-resistant temperature of the silicone sleeve or rubber sleeve is controlled at 100-200°C.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] After the cigarette is inserted into the heating chamber, the top block pushes the elastic diaphragm, causing it to expand inward and contact the cigarette, thereby clamping the cigarette. Then the heating chamber starts to heat the cigarette and the smoking process begins. After the cigarette is smoked, the top block retreats, the elastic diaphragm resets and releases the cigarette, and the cigarette can be taken out. The smoking device has the function of automatically clamping the cigarette, which can effectively prevent the cigarette from being taken out of the heating chamber during the smoking process. In addition, even if there is an error in the diameter of the cigarette, the smoking device can also adapt to it, giving consumers an unchanged experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is the front view of the low-temperature smoking device provided by the embodiment of the present invention;

[0024] Figure 2 is the side view of the low-temperature smoking device provided by the embodiment of the present invention;

[0025] Figure 3 is the explosion view of the low-temperature smoking device provided by the embodiment of the present invention;

[0026] Figure 4 is the state when the heating element is in the first position in the embodiment of the present invention Figure 1 ;

[0027] Figure 5 is the state when the heating element is in the first position in the embodiment of the present invention Figure 2 ;

[0028] Figure 6 is the state when the heating element is in the second position in the embodiment of the present invention Figure 1 ;

[0029] Figure 7 is the state when the heating element is in the second position in the embodiment of the present invention Figure 2 ;

[0030] Wherein: 1-smoking device housing; 101-upper cover; 102-middle housing; 103-lower cover; 2-cigarette; 3-heating cavity; 4-heating element; 5-battery; 6-circuit board; 7-control button; 8-through hole; 9-elastic diaphragm; 10-top block; 11-linear driving mechanism; 111-motor; 112-slider; 113-lifting screw rod; 12-guiding hole; 13-first inclined surface; 14-top rod; 15-second inclined surface; 16-elastic element; 17-mounting seat; 18-pulling block; 19-air intake groove; 20-elastic sleeve. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] See Figures 1 - 3 , a low-temperature smoking device with automatic cigarette clamping, including a smoking device housing 1. An inner heating cavity 3 for accommodating a cigarette 2 is formed inside the smoking device housing 1. The cigarette 2 can be inserted into the heating cavity 3 and heated by a heating element 4 in the heating cavity 3 to generate smoke for the user to inhale. After the cigarette 2 is smoked, it can be removed from the heating cavity 3. A battery 5 for supplying power to the heating element 4, a circuit board 6 for controlling the operation of the heating element 4, and a control button 7 are also provided in the smoking device housing 1. The circuit board 6 is electrically connected to the control button 7, the battery 5, and the heating element 4 to form a heating element heating control circuit. As for the specific structure of the heating element heating control circuit, it is a conventional design in the field of electronic control and will not be elaborated here. By pressing the control button 7, the heating element heating control circuit can be controlled to supply power to and cut off power from the heating element 4.

[0033] It should be explained here that the heating method of the smoking device can adopt central heating or surrounding heating. In this embodiment, the central heating method is adopted. The heating element 4 is arranged at the center of the heating cavity 3. The heating element 4 is arranged in a sheet shape or a rod shape, so that it can be easily inserted into the cigarette 2. Of course, the surrounding heating method can also be adopted. Correspondingly, the heating element 4 is arranged on the inner circumference or the outer circumference of the heating cavity 3.

[0034] See Figures 1 - 3 , a plurality of through holes 8 are evenly distributed along the circumferential direction of the cross-section on the side wall of the heating cavity 3. An elastic diaphragm 9 is provided on each through hole 8. A top block 10 for promoting the elastic deformation of the elastic diaphragm 9 to clamp the cigarette 2 in the heating cavity 3 is also provided outside the heating cavity 3 in the smoking device housing 1. In the embodiment of the present application, the number of through holes 8 is two. Correspondingly, the number of elastic diaphragms 9 is also two.

[0035] See Figure 4 and Figure 5 , in the embodiment of the present application, after the cigarette 2 is inserted into the heating cavity 3, the top block 10 pushes the elastic diaphragm 9, causing the elastic diaphragm 9 to elastically deform inward and contact the cigarette 2, thereby clamping the cigarette 2. After that, the heating element 4 in the heating cavity 3 heats the cigarette 2, and the smoking process can start. After the cigarette 2 is smoked, when the cigarette 2 needs to be pulled out, the top block 10 retracts, and the elastic diaphragm 9 resets to release the cigarette 2. At this time, the cigarette 2 can be taken out. The smoking device has the function of automatically clamping the cigarette 2. Compared with the transition or interference fit method between the cigarette 2 and the heating cavity 3, the cigarette 2 can be easily inserted into the heating cavity 3 without damaging the structure of the cigarette 2. In addition, even if there is an error in the diameter of the cigarette 2, the smoking device can still adapt, giving consumers a consistent experience. Compared with the clearance fit method between the heating cavity 3 and the cigarette 2, when the consumer smokes, the cigarette 2 will not be easily taken out.

[0036] See Figures 4 - 7It can be understood that in some possible implementation schemes, a linear drive mechanism 11 for driving the heating element 4 to move is also provided in the smoking device housing 1, and the heating element 4 has a first position and a second position; wherein, when the heating element 4 is located at the first position, the heating element 4 is inserted into the heating cavity 3, and when the heating element 4 is located at the second position, the heating element 4 is withdrawn from the heating cavity 3, and the linear drive mechanism 11 is electrically connected to the circuit board 6 and is controlled by the circuit board 6.

[0037] In the embodiment of the present application, after the cigarette 2 is smoked, when it is necessary to pull out the cigarette 2, it is only necessary to start the linear drive mechanism 11 to drive the heating element 4 to withdraw from the cigarette 2 in the heating chamber 3. At the same time, the elastic diaphragm 9 relaxes and releases the cigarette 2, so that the cigarette 2 can be pulled out of the heating chamber 3. The heating element 4 of the smoking device in this embodiment can automatically withdraw from the cigarette 2, so that the smoking material is fully separated from the heating element 4, and the cigarette 2 can be directly taken out, ensuring the cleanliness of the heating chamber 3 and avoiding the tedious operation of rotating the cigarette 2.

[0038] See also Figures 4 - 7 In some possible implementation schemes, the top block 10 is slidably installed in the guide hole 12 in the smoking device housing 1, and a first inclined surface 13 is provided at one end of the top block 10 away from the elastic diaphragm 9. A top rod 14 is also provided in the smoking device housing 1, and a second inclined surface 15 that slides with the first inclined surface 13 is provided on the top rod 14. An elastic element 16 is connected between the top rod 14 and the smoking device housing 1. The top rod 14 pushes the top block 10 under the elastic force provided by the elastic element 16 to force the elastic diaphragm 9 to undergo elastic deformation. The top rod 14 is provided with a shifting block 18 that matches with the mounting seat 17 of the heating element 4, and the heating element 4 is installed inside the smoking device housing 1 through the mounting seat 17. Among them, the elastic element 16 can be a coil spring, a rubber spring, a gas spring or other elements.

[0039] See also Figures 4 - 7, in the embodiment of the present application, when it is necessary to remove the cigarette, press the control button 7, and the circuit board 6 gives a driving instruction to the linear driving mechanism 11, driving the heating element 4 together with the mounting seat 17 to move from the first position to the second position (i.e., move downward). When the mounting seat 17 moves to contact the dial block 18, the mounting seat 17 will push against the dial block 18 to drive the ejector rod 14 to move downward and compress the elastic element 16. The top block 10 is reset under the restoring force of the elastic diaphragm 9, releasing the cigarette 2. At the same time, the heating element 4 withdraws from the cigarette 2. At this time, pulling out the cigarette 2 from the heating cavity 3 can complete the removal of the cigarette. When the user needs to draw, insert the cigarette 2 into the heating cavity 3, press the control button 7, and the circuit board 6 gives a driving instruction to the linear driving mechanism 11, driving the heating element 4 together with the mounting seat 17 to move from the second position to the first position (i.e., move upward). The elastic element 16 gives an upward pushing force to the ejector rod 14. Under the action of this pushing force, the ejector rod 14 presses against the first inclined surface 13, forcing the top block 10 to move in the guiding hole 12 towards the elastic diaphragm 9 and pushing against the elastic diaphragm 9, causing it to undergo elastic deformation and clamp the cigarette 2. At the same time, the heating element 4 inserts into the cigarette 2 until reaching the uppermost end of the stroke.

[0040] In the embodiment of the present application, a set of driving devices can be used to drive the movement of the heating element 4 and cause the elastic diaphragm 9 to undergo elastic deformation. The structure of the smoking device is more compact and the cost is lower.

[0041] See Figures 4 - 7 , in some possible implementation solutions, the heating cavity 3 has opposite first and second ends; wherein, the first end is for inserting the cigarette 2, and the second end is a closed end with a perforation. The heating element 4 can be inserted into the heating cavity 3 by matching through the perforation.

[0042] In the embodiment of the present application, the second end of the heating cavity 3 is a closed end, and dirt such as tar generated by sucking the cigarette 2 will not enter other parts of the smoking device, making the smoking device easy to clean. In addition, when the heating element 4 withdraws from the heating cavity 3, the tobacco material carbide adhered to the heating element 4 will be scraped off by the side wall of the perforation during the movement, which can further reduce the residue on the heating element 4.

[0043] See Figures 4 - 7 , in the actual design, an air intake groove 19 is provided on the inner bottom surface of the second end. When the cigarette 2 is inserted into the heating cavity 3 and abuts against the inner bottom surface of the second end of the heating cavity 3, the cigarette 2 is inserted in place. At this time, the external fresh air flow enters the air intake groove 19 from the first end of the heating cavity 3 through the side gap between the cigarette 2 and the side wall of the heating cavity 3 under the action of the suction negative pressure, and enters the cigarette 2 from the bottom end of the cigarette 2 and finally enters the user's mouth. In the embodiment of the present application, the smoking device adopts the side air intake method, which can not only preheat the fresh air flow, save energy consumption, but also cool the housing 1 of the smoking device.

[0044] In addition, it should be noted that the cigarette rod 2 in the embodiments of the present application includes a tobacco section and a filter section. When the cigarette rod 2 is inserted into the heating cavity 3, at least a part of the filter section protrudes out of the smoking device, so as to facilitate the user to hold the filter and suck. Of course, a cooling section can also be added between the tobacco section and the filter section. The airflow cools down after passing through the cooling section, which can prevent the smoke from scalding the mouth and improve the user's sucking experience. In addition, when the through hole 8 is arranged close to the first end, the reliability of clamping the cigarette rod 2 can be effectively improved.

[0045] See Figures 4 - 7 , specifically, an elastic sleeve 20 is arranged in a matching manner outside the heating cavity 3. The side wall part of the elastic sleeve 20 corresponding to the through hole 8 constitutes the above-mentioned elastic diaphragm 9. The elastic sleeve 20 has a certain elasticity. When it is subjected to pressure, it can produce a certain deformation and its shape can automatically recover when the pressure disappears. The elastic sleeve 20 can withstand high temperatures of 100-200 °C and its chemical and physical properties will not change significantly. Its material can be made of high-temperature-resistant silica gel or rubber. In the embodiments of the present application, the elastic sleeve 20 is installed outside the heating cavity 3, so that there is no gap in the cavity of the heating cavity 3 for accommodating the cigarette rod 2, preventing foreign objects from entering the interior of the device.

[0046] See Figures 4 - 7 , specifically, the linear drive mechanism 11 can adopt a screw rod lifting mechanism driven by a motor 111, which specifically includes a motor 111, a slider 112 and a jacking screw rod 113. The jacking screw rod 113 is docked with the output shaft of the motor 111. The slider 112 is provided with a threaded through hole 8 adapted to the jacking screw rod 113. The jacking screw rod 113 passes through the threaded through hole 8 and is in threaded transmission connection with the slider 112. The slider 112 is slidably installed in the guide rail in the smoking device housing 1, and the extending direction of the guide rail is parallel to the moving direction of the heating element 4.

[0047] Specifically, the smoking device housing 1 includes an upper cover 101, a middle housing 102 and a lower cover 103. The upper cover 101, the middle housing 102 and the lower cover 103 together enclose a cavity for accommodating components such as the battery 5 and the circuit board 6.

[0048] See Figures 1 - 7 , the working process of the smoking device in the embodiments of the present application is as follows:

[0049] ① As Figure 6 , 7 shown, it is a state diagram when the heating element 4 is in the second position. At this time, the mounting seat 17 and the heating element 4 are at the lowest end, and the dial block 18 on the mounting seat 17 holds the ejector rod 14, so that the ejector rod 14 is also at the lowest end position of the stroke.

[0050] ② Put the cigarette rod 2 into the heating cavity 3 and give the smoking device a start command.

[0051] ③ The motor 111 rotates to move the slider 112 upward. The slider 112 drives the mounting base 17 and the heating element 4 to move upward together. The heating element 4 starts to insert into the cigarette 2. At the same time, the dial block 18 on the mounting base 17 releases the ejector rod 14. The ejector rod 14 moves upward under the action of the elastic element 16. During the upward movement of the ejector rod 14, it presses the first inclined surface 13 of the ejector block 10, causing the ejector block 10 to move towards the elastic sleeve 20. The ejector block 10 presses the elastic sleeve 20, causing the elastic sleeve 20 to deform. The elastic sleeve 20 contacts the cigarette 2 through the through hole 8 on the heating cavity 3, clamping the cigarette 2. The heating element 4 continues to move upward until it reaches the uppermost end of the stroke. At this time, the state is as Figure 4 , Figure 5 shown.

[0052] ④ After the cigarette 2 is smoked out, the motor 111 rotates in the reverse direction to return the smoking device to the initial state. At this time, the cigarette 2 can be taken out.

[0053] 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 based on the above description. It is not necessary and impossible to list all the embodiments here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A low-temperature smoking device with automatic cigarette clamping, comprising a smoking device housing (1), and a heating chamber (3) for accommodating a cigarette (2) is formed inside the smoking device housing (1). Characterized in that: A plurality of through holes (8) are evenly distributed along the circumferential direction of the cross-section on the side wall of the heating chamber (3), and an elastic diaphragm (9) is provided on each through hole (8). A top block (10) for urging the elastic diaphragm (9) to elastically deform inward to clamp the cigarette (2) in the heating chamber (3) is further provided outside the heating chamber (3) in the smoking device housing (1). A heating element (4) and a linear driving mechanism (11) for driving the heating element (4) to move are further provided in the smoking device housing (1). The heating element (4) has a first position and a second position. Among them, When the heating element (4) is in the first position, the heating element (4) is inserted into the heating chamber (3). When the heating element (4) is in the second position, the heating element (4) withdraws from the heating chamber (3). The top block (10) is slidably installed in a guiding hole (12) in the smoking device housing (1). A first inclined surface (13) is provided at one end of the top block (10) away from the elastic diaphragm (9). A top rod (14) is further provided in the smoking device housing (1). A second inclined surface (15) that slidably cooperates with the first inclined surface (13) is provided on the top rod (14). The top rod (14) pushes against the top block (10) through the cooperation of the first inclined surface (13) and the second inclined surface (15) to force the elastic diaphragm (9) to elastically deform. An elastic element (16) is connected between the top rod (14) and the smoking device housing (1). The top rod (14) pushes against the top block (10) under the elastic force provided by the elastic element (16) to force the elastic diaphragm (9) to elastically deform. A dial block (18) that cooperates with the mounting seat (17) of the heating element (4) is provided on the top rod (14). During the process of the heating element (4) moving from the first position to the second position, the mounting seat (17) pushes against the dial block (18) to drive the top rod (14) to move and compress the elastic element (16). The top block (10) resets under the restoring force of the elastic diaphragm (9). During the process of the heating element (4) moving from the second position to the first position, the top rod (14) pushes against the top block (10) under the restoring force of the elastic element (16) to force the elastic diaphragm (9) to elastically deform. An elastic sleeve (20) is sleeved outside the heating chamber (3). The side wall part of the elastic sleeve (20) corresponding to the through hole (8) constitutes the elastic diaphragm (9).

2. The low-temperature smoking device according to claim 1, Characterized in that: The heating chamber (3) has opposite first and second ends. Among them, The first end is for inserting the cigarette (2), the second end is a closed end with a perforation, and the heating element (4) is inserted into the heating chamber (3) by matching through the perforation.

3. The low-temperature smoking device according to claim 2, It is characterized in that: An air intake groove (19) is formed on the inner bottom surface of the second end; Airflow enters the air intake groove (19) from the first end through the side gap between the cigarette rod (2) and the heating cavity (3), and finally flows out from the cigarette rod (2).

4. The low-temperature smoking device according to any one of claims 1-3, It is characterized in that: The linear driving mechanism (11) adopts a screw rod lifting mechanism driven by a motor.

5. The low-temperature smoking device according to any one of claims 1-3, It is characterized in that: The elastic sleeve (20) adopts a silica gel sleeve or a rubber sleeve.

6. The low-temperature smoking device according to claim 5, It is characterized in that: The heat-resistant temperature of the silica gel sleeve or the rubber sleeve is controlled at 100-200 °C.

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