Smoking set with adjustable negative pressure in smoking process and application

Abstract

The invention belongs to the technical field of heating smoking sets, and particularly relates to a smoking set capable of regulating and controlling negative pressure in the smoking process and application, the smoking set comprises a main body, and the main body is internally provided with a heating cavity and an air inlet channel which are communicated with each other; the heating mechanism is used for heating the fuming substrate and is arranged in the heating cavity; and the plugging mechanism is mounted on the main body and is used for plugging the air inlet channel at the rear half section of the suction action. According to the purpose, the air inlet channel is blocked at the rear half section of single-mouth suction through the blocking mechanism, so that the negative pressure of the environment where a fuming substrate is located is increased by utilizing the continuous suction action of a user, more fuming agents in the fuming substrate are separated out, aerosol is promoted to be generated and released, and therefore the smoke can be effectively prevented from being generated in the next-mouth suction process. Therefore, the utilization rate of the fuming substrate is improved, and the problem of insufficient later-stage fuming amount is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of heated smoking articles, and in particular relates to a smoking article with adjustable negative pressure during the smoking process and its application. Background Art

[0002] For heated cigarettes, the core material can be considered as a porous medium. The basic smoking process can be understood as the core material being heated by the smoking device, causing the internal smoke-generating agent liquid to evaporate due to the heat, and then as the user inhales, the steam is entrained by the inhaled airflow to form an aerosol for consumers to inhale.

[0003] At present, the main way to affect the aerosol generation effect of heated cigarettes is the heating temperature of the smoking device, which uses heat as the power to achieve the generation and release of aerosol. By increasing the temperature and increasing the heat supply, the aerosol release effect can be improved, but it will cause the smoke temperature to be too high and accompanied by the generation of unpleasant odors. Therefore, it is necessary to find other power sources to promote aerosol release.

[0004] During the smoking process of heated cigarettes, a certain negative pressure will be formed in the core section. If the negative pressure value of the environment in which the core section is located is increased, it will be conducive to the precipitation of the smoke-generating agent in the porous medium core material as the smoke-generating matrix, and promote the generation and release of aerosol. Especially in the later stage of smoking, that is, the last few puffs of the cigarette, there is not much surface material left on the porous medium core material, resulting in a significant reduction in the amount of smoke generated in the later stage. Summary of the invention

[0005] The purpose of the present invention is to provide a smoking device with adjustable negative pressure during the smoking process, through a blocking mechanism, the air inlet duct is blocked in the second half of a single puff of puffing, so that the negative pressure of the environment in which the smoking substrate is located is increased by utilizing the action of the user continuing to puff, and then more smoking agents are precipitated in the smoking substrate, promoting the generation and release of aerosols, so that they can be inhaled into the oral cavity by the user during the next puff, thereby improving the utilization rate of the smoking substrate and avoiding the problem of insufficient smoke production in the later stage.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A smoking device with adjustable negative pressure during smoking, comprising:

[0008] A main body, wherein a heating chamber and an air inlet duct are connected to each other;

[0009] A heating mechanism for heating the smokable substrate, wherein the heating mechanism is arranged in the heating chamber;

[0010] The blocking mechanism is installed on the main body and is used to block the air inlet in the second half of the suction action.

[0011] It is further defined that the blocking mechanism includes a blocking member and an elastic member;

[0012] The blocking member is movably mounted on the main body and is located on the air intake path of the air intake duct;

[0013] The blocking member blocks the air inlet after a certain time interval under the user's suction action;

[0014] The elastic member is installed between the main body and the blocking member, and is used to provide resistance to the movement of the blocking member when the blocking member blocks the air inlet, and to drive the blocking member to reset after the suction action stops.

[0015] Such a structural design, through the arrangement of the blocking piece and the elastic piece, with the blocking piece movably installed on the air intake path of the air intake duct, allows the blocking piece to directly utilize the negative pressure formed by the suction during the user's inhalation to drive the blocking piece to overcome the prestress of the elastic piece, thereby blocking the air intake duct after a certain time interval, and then increasing the negative pressure of the environment in which the smoke-generating substrate is located in the second half of the suction. There is no need to set up a separate power mechanism, the structure is simple, the manufacturing is convenient, the cost is low, and the practicability is strong.

[0016] It is further defined that the blocking member is a flap, and the flap is hinged to the main body;

[0017] When the flap is turned over to be close to the air inlet, the air inlet is blocked;

[0018] The elastic member is a first return spring, and the first return spring is installed between the flap and the main body.

[0019] Such a structural design uses the flap as a blocking member, and the first return spring as an elastic member, in conjunction with the hinge between the flap and the main body, to complete the blocking of the air inlet by the rotation of the flap under the negative pressure formed by the user's suction. It has a simple structure, is easy to install, and is highly practical.

[0020] It is further defined that a mounting cavity is provided on the main body, and the mounting cavity is communicated with the air inlet;

[0021] The flap is rotatably mounted in the mounting cavity.

[0022] This structural design, which supports the flap through the installation cavity, can avoid the flap being placed outside the outer contour of the main body under the action of the first return spring when the smoking device is not in use, thereby preventing the flap from being damaged due to placement problems. It is very practical.

[0023] It is further defined that the blocking member includes a blocking ball and a blocking ring located in the air inlet;

[0024] The blocking ring is installed on the inner wall of the air inlet, and the blocking ball is located on the side of the blocking ring away from the heating chamber;

[0025] When the blocking ball abuts against the blocking ring, the air inlet is blocked;

[0026] The elastic member is a second return spring, and the second return spring is installed between the blocking ball and the main body.

[0027] This structural design forms a sealing member through the cooperation between the sealing ball and the sealing ring, and then uses the second return spring as an elastic member. The negative pressure formed by the user's suction drives the sealing ball to move toward the sealing ring until the sealing ball rests on the sealing ring to form a blockage on the air inlet. It has a simple structure, is easy to install, and is highly practical.

[0028] It is further defined that a support member is installed in the air inlet between the blocking member and the heating chamber;

[0029] The support member is connected to the main body, and an air inlet is provided on the support member;

[0030] The second return spring is a compression spring, and the compression spring is located between the support member and the blocking ball.

[0031] Such a structural design supports the compression spring serving as the second return spring inside the air inlet through the support member with the air inlet, has a simple structure, is easy to install, and is highly practical.

[0032] It is further defined that a limiting member is installed in the air inlet duct at one end of the blocking member away from the heating chamber, and the limiting member is also provided with an air inlet;

[0033] A guide blind hole is provided on the side of the blocking ball close to the limiting member;

[0034] The limiting member is provided with a guide rod, and the guide rod is penetrated in the guide blind hole.

[0035] This structural design limits the maximum outward movement distance of the blocking ball through the limiter to prevent the blocking ball from falling from the air inlet duct. At the same time, the movement of the blocking ball is limited by the cooperation between the guide rod and the guide blind hole, which can prevent the blocking ball from shifting during use and is very practical.

[0036] It is further defined that a mounting tube is provided in the air inlet duct, and the blocking ball and the blocking ring are both located in the mounting tube;

[0037] The blocking ring is threadedly connected to the mounting tube.

[0038] This structural design, through the threaded connection between the sealing ring and the mounting tube, allows the distance between the sealing ring and the sealing ball to be adjusted before suction, thereby adjusting the time for the sealing ball to seal the sealing ring, and is highly practical.

[0039] It is further defined that the blocking mechanism includes a negative pressure sensor, a motor, a blocking member and a controller;

[0040] The negative pressure sensor is installed on the side wall of the air inlet duct to detect the user's suction action;

[0041] The motor is fixedly mounted on the main body;

[0042] The blocking member is movably installed in the air inlet and is drivingly connected to the power output shaft of the motor;

[0043] The controller is connected with the negative pressure sensor and the motor signal, and is used to control the motor to move after detecting that the suction action has started for a certain period of time, thereby driving the blocking member to block the air inlet duct.

[0044] With this structural design, the negative pressure condition in the air inlet duct is detected by a negative pressure sensor. When inhalation is performed, outside air passes through the air inlet duct, causing the air pressure in the air inlet duct to decrease and form a negative pressure. When the negative pressure sensor detects the generation of negative pressure, the timing starts, and then after a certain period of time, that is, the second half of the inhalation action, the motor is controlled to operate, driving the blocking part to block the air inlet duct until the inhalation action is completed. After the user stops inhaling, the air pressure in the air inlet duct is balanced with the atmospheric pressure again. At this time, the motor controls the blocking part to reset.

[0045] An application of a smoking device with adjustable negative pressure during smoking, comprising a heated cigarette and the above-mentioned smoking device with adjustable negative pressure during smoking, wherein the heated cigarette comprises a core segment, a hollow segment and a filter segment, the smoke-generating matrix is ​​located in the core segment, the hollow segment is radially provided with ventilation holes, and when the heated cigarette is inserted in a heating mechanism, the ventilation holes are located outside the heating chamber.

[0046] Such a structural design can effectively reduce the smoke temperature by using a heated cigarette with radial ventilation holes in the hollow section on the device, making the smoke temperature entering the oral cavity softer, thereby achieving supplementary regulation of the smoke temperature state; at the same time, the surface temperature of the hollow section is reduced, thereby avoiding the problem of the filter tip getting hot when smoking the heated cigarette, and having strong practicality;

[0047] At the same time, in the second half of inhalation, that is, after the sealing mechanism blocks the air inlet duct, when the negative pressure of the environment in which the cigarette core section is located increases, the outside air can still continue to enter the user's mouth from the ventilation hole, thereby reducing the discomfort caused by the sudden decrease in the total air intake volume of the outside air entering the user's mouth after the air inlet duct of the smoking device is blocked, and the practicality is strong.

[0048] The invention adopting the above technical solution has the following advantages:

[0049] 1. The blocking mechanism blocks the air inlet in the second half of a single puff, thereby increasing the negative pressure of the environment in which the smoking substrate is located by taking advantage of the user's continued puffing action, thereby causing more smoking agents to be precipitated from the smoking substrate, promoting the generation and release of aerosols, so that the aerosols can be inhaled into the oral cavity by the user in the next puff, thereby improving the utilization rate of the smoking substrate and avoiding the problem of insufficient smoke production in the later stage;

[0050] 2. By setting the blocking member and the elastic member, the blocking member is movably installed on the air inlet path of the air inlet duct, so that the blocking member can directly use the negative pressure formed by the suction during the user's inhalation to drive the blocking member to overcome the prestress of the elastic member, so that the air inlet duct is blocked after a certain time interval, and then the negative pressure of the environment where the smoking substrate is located is increased in the second half of the inhalation, without the need for a separate power mechanism, the structure is simple, the manufacturing is convenient, the cost is low, and the practicability is strong;

[0051] 3. The flap is used as a blocking member, and the first return spring is used as an elastic member. In conjunction with the hinge between the flap and the main body, the flap rotates under the negative pressure formed by the user's suction to complete the blocking of the air inlet. The structure is simple, the installation is convenient, and the practicability is strong.

[0052] 4. The blocking ball and the blocking ring cooperate with each other to form a blocking piece, and then the second return spring is used as an elastic piece. The negative pressure formed by the user's suction drives the blocking ball to move toward the blocking ring until the blocking ball is attached to the blocking ring to form a blockage of the air inlet. The structure is simple, the installation is convenient, and the practicability is strong.

[0053] 5. The negative pressure in the air inlet is detected by the negative pressure sensor. When suction is performed, the outside air passes through the air inlet, which reduces the air pressure in the air inlet and forms a negative pressure. When the negative pressure sensor detects the generation of negative pressure, it starts timing. After a certain period of time, that is, the second half of the suction action, the motor is controlled to drive the blocking piece to block the air inlet until the suction action is completed. After the user stops suctioning, the air pressure in the air inlet is balanced with the atmospheric pressure again. At this time, the motor controls the blocking piece to reset.

[0054] 6. By using a heated cigarette with radial ventilation holes in the hollow section on the device, the smoke temperature can be effectively reduced, making the smoke entering the oral cavity feel softer, and realizing supplementary regulation of the smoke temperature state; at the same time, the surface temperature of the hollow section is reduced, avoiding the problem of the filter tip getting hot when smoking the heated cigarette, which is highly practical;

[0055] At the same time, in the second half of inhalation, that is, after the sealing mechanism blocks the air inlet duct, when the negative pressure of the environment in which the cigarette core section is located increases, the outside air can still continue to enter the user's mouth from the ventilation hole, thereby reducing the discomfort caused by the sudden decrease in the total air intake volume of the outside air entering the user's mouth after the air inlet duct of the smoking device is blocked, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0057] Figure 1 It is a structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and an application embodiment 1 of the present invention;

[0058] Figure 2 It is a cross-sectional structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and an application embodiment 1 of the present invention;

[0059] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0060] Figure 4 It is a partial enlarged structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and an application embodiment 1 of the present invention;

[0061] Figure 5 It is a structural schematic diagram of a smoking device with adjustable negative pressure during smoking and a mounting plate part in the first application embodiment of the present invention;

[0062] Figure 6 It is a structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and a second application embodiment of the present invention;

[0063] Figure 7 It is a cross-sectional structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and a second application embodiment of the present invention;

[0064] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0065] Fig. 9 It is a partial enlarged structural schematic diagram of a smoking device with adjustable negative pressure during the smoking process and a second application embodiment of the present invention;

[0066] Fig.10 It is a structural schematic diagram of a smoking device with adjustable negative pressure during smoking and a limiting member part in the second application embodiment of the present invention;

[0067] The main component symbols are described as follows:

[0068] Heated cigarette 1, cigarette core segment 11, hollow segment 12, ventilation hole 120, filter segment 13,

[0069] Main body 2, heating mechanism 21, air inlet 22, installation cavity 220,

[0070] flap 31, sealing ring 310, first return spring 32, mounting plate 33, limiting column 330,

[0071] The blocking ball 41, the guide blind hole 410, the blocking ring 42, the second return spring 43, the support member 44, the air inlet 440,

[0072] Limiting member 45 , guide rod 450 , and mounting tube 46 . DETAILED DESCRIPTION

[0073] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0074] Embodiment 1:

[0075] like Figure 1 to Figure 5 As shown, a smoking device with adjustable negative pressure during the smoking process of the present invention comprises:

[0076] A main body 2, wherein a heating chamber and an air inlet 22 are connected to each other;

[0077] A heating mechanism 21 for heating the smoking substrate, the heating mechanism 21 being arranged in the heating chamber;

[0078] The blocking mechanism is installed on the main body 2 and is used to block the air inlet 22 in the second half of the suction action.

[0079] The heating mechanism is a heating cylinder, and when in use, the heating cylinder is sleeved on the smoking substrate. In fact, a heating needle can also be used as a heating mechanism to heat the smoking substrate. In this embodiment, the smoking substrate is heated by the heating cylinder, and the heating uniformity is good and the practicability is strong.

[0080] The blocking mechanism includes a blocking member and an elastic member;

[0081] The blocking member is movably mounted on the main body and is located on the air intake path of the air intake duct 22;

[0082] Under the suction action of the user, the blocking member forms a blockage on the air inlet 22 after a certain time interval;

[0083] The elastic member is installed between the main body and the blocking member, and is used to provide resistance to the movement of the blocking member when the blocking member blocks the air inlet 22, and to drive the blocking member to reset after the suction action stops.

[0084] By setting the blocking member and the elastic member, and by movably installing the blocking member on the air intake path of the air intake duct 22, the blocking member can directly utilize the negative pressure formed by the suction during the user's inhalation to drive the blocking member to overcome the prestress of the elastic member, so that the air intake duct 22 is blocked after a certain time interval, and the negative pressure of the environment in which the smoking substrate is located is increased in the second half of the suction. There is no need to set up a separate power mechanism, the structure is simple, the manufacturing is convenient, the cost is low, and the practicability is strong.

[0085] The blocking member is a flap 31, and the flap 31 is hinged to the main body 2;

[0086] When the flap 31 is turned over to abut against the air inlet 22, the air inlet 22 is blocked;

[0087] The elastic member is a first return spring 32 , and the first return spring 32 is installed between the flap 31 and the main body 2 .

[0088] By using the flap 31 as a blocking member and the first return spring 32 as an elastic member, in conjunction with the hinge between the flap 31 and the main body 2, the flap 31 rotates under the negative pressure formed by the user's suction to complete the blocking of the air inlet 22. The structure is simple, the installation is convenient, and the practicability is strong.

[0089] The main body 2 is provided with a mounting cavity 220, which is communicated with the air inlet 22;

[0090] The flap 31 is rotatably mounted in the mounting cavity 220 .

[0091] In fact, according to actual conditions, the flap 31 can be directly rotated and installed outside the main body 2 or in the air inlet 22. This embodiment supports the flap 31 through the installation cavity 220, which can avoid the flap 31 being placed outside the outer contour of the main body 2 under the action of the first return spring 32 when the smoking device is not in use, thereby preventing the flap 31 from being damaged due to placement problems. This embodiment is more practical.

[0092] The main body 2 can also be detachably mounted with a mounting plate 33;

[0093] The flap 31 is rotatably connected to the main body 2 via the mounting plate 33;

[0094] A limiting column 330 is fixedly provided on the side of the flap 31 and the mounting plate 33 away from the air inlet duct 22;

[0095] The first return spring 32 is a compression spring, and two ends of the compression spring are respectively sleeved on the limiting column 330 of the flap 31 and the limiting column 330 of the mounting plate 33 .

[0096] In fact, according to actual conditions, the first return spring 32 can be installed directly on the flap 31 and the edge of the air inlet 22 of the main body 2. This embodiment completes the installation of the flap 31 and the first return spring 32 through the cooperation of the compression spring, the mounting plate 33 and the limiting column 330. It has a simple structure, is easy to install and is highly practical.

[0097] In fact, according to actual conditions, a sealing gasket can be installed on the side of the flap 31 close to the air inlet 22 to enhance the sealing performance. In this embodiment, a sealing ring 310 is fixedly installed on the side of the main body 2 where the air inlet 22 contacts the flap 31.

[0098] The sealing performance of the flap 31 to the air inlet 22 is improved by the sealing ring 310 , and the structure is simple and the practicability is strong.

[0099] The present embodiment also discloses an application of a smoking device with adjustable negative pressure during smoking, including a heated cigarette 1 and the above-mentioned smoking device with adjustable negative pressure during smoking, wherein the heated cigarette 1 includes a cigarette core segment 11, a hollow segment 12 and a filter segment 13, the smoke-generating matrix is ​​located in the cigarette core segment 11, and the hollow segment 12 is radially provided with ventilation holes 120, and when the heated cigarette 1 is inserted into the heating mechanism, the ventilation holes 120 are located outside the heating cavity.

[0100] In fact, for smoking devices that cannot use heated cigarettes 1 and directly heat the smoking substrate and smoke through a mouthpiece, a through hole connected to the outside world can be opened on the passage between the mouthpiece and the smoking substrate, so that the outside air can directly enter the user's oral cavity without passing through the smoking substrate and the air inlet. This embodiment can effectively reduce the smoke temperature by using a heated cigarette 1 with ventilation holes 120 radially opened in the hollow section 12 on the device, so that the temperature of the smoke entering the oral cavity is softer, and the supplementary regulation of the smoke temperature state is achieved; at the same time, the surface temperature of the hollow section 12 is reduced to avoid the problem of the filter tip getting hot when smoking the heated cigarette 1, and the practicality is strong;

[0101] At the same time, in the second half of inhalation, that is, after the sealing mechanism blocks the air inlet 22, when the negative pressure of the environment in which the cigarette core segment 11 is located increases, the outside air can still continue to enter the user's mouth from the ventilation hole 120, thereby reducing the discomfort caused by the sudden decrease in the total air intake volume of the outside air entering the user's mouth after the air inlet 22 of the smoking device is blocked, and the practicality is strong.

[0102] In this embodiment, when in use, the heated cigarette 1 is inserted into the heating chamber so that the cigarette core segment 11 is located at the heating mechanism 21, and the heating mechanism 21 is used to heat the smoking matrix in the cigarette core segment 11, thereby causing the smoke-generating agent in the smoking matrix in the cigarette core segment 11 to precipitate, so that the aerosol is generated and released. At this time, the flap 31 is in an open state under the action of the first return spring 32 (compression spring), thereby causing the air inlet 22 to be in an open state (such as Figure 2 and Figure 3 shown);

[0103] The user holds the filter segment 13 in his mouth and smokes the heated cigarette 1. In the first half of the smoking, the outside air enters the cigarette core segment 11 through the gap between the air inlet 22 and the flap 31, driving the aerosol in the cigarette core segment 11 into the hollow segment 12, and mixes with the air that enters the hollow segment 12 through the ventilation holes 120, and then enters the user's mouth through the filter segment 13.

[0104] For example, if the user's single puff time is 2 seconds, the first half of the puff action refers to the 0th to 1st second of the puff, and the second half of the puff action refers to the 1st to 2nd second of the puff;

[0105] During this process, due to the flow of air, negative pressure is formed on the side of the flap 31 close to the air inlet 22. Under the action of this negative pressure, the flap 31 overcomes the prestress of the first return spring 32 (compression spring) and turns over, and then covers the air inlet 22 to block the air inlet 22 (such as Figure 4 shown);

[0106] The user continues to smoke the heated cigarette 1. When the air inlet 22 is blocked, a greater negative pressure is formed in the smoke core section 11 of the heated cigarette 1. The negative pressure causes the smoke agent in the smoke-generating matrix in the smoke core section 11 to precipitate and enter the surface of each smoke-generating matrix in the smoke core section 11. For example, taking the smoke-generating matrix of several tobacco sheets as an example, the increased negative pressure drives the smoke agent in the deep of the tobacco sheets to the surface of the tobacco sheets, making it easier to be heated to generate aerosol for the user to inhale.

[0107] When the user stops smoking, the air pressure inside the smoking device returns to normal, and the flap 31 is reset under the action of the first reset spring 32 (compression spring), so that the air inlet 22 is connected to the outside air again.

[0108] Embodiment 2:

[0109] like Figure 6 to Figure 10 As shown, a smoking device with adjustable negative pressure during the smoking process of the present invention comprises:

[0110] A main body 2, wherein a heating chamber and an air inlet 22 are connected to each other;

[0111] A heating mechanism 21 for heating the smoking substrate, the heating mechanism 21 being arranged in the heating chamber;

[0112] The blocking mechanism is installed on the main body 2 and is used to block the air inlet 22 in the second half of the suction action.

[0113] The heating mechanism is a heating cylinder, and when in use, the heating cylinder is sleeved on the smoking substrate. In fact, a heating needle can also be used as a heating mechanism to heat the smoking substrate. In this embodiment, the smoking substrate is heated by the heating cylinder, and the heating uniformity is good and the practicability is strong.

[0114] The blocking mechanism includes a blocking member and an elastic member;

[0115] The blocking member is movably mounted on the main body and is located on the air intake path of the air intake duct 22;

[0116] Under the suction action of the user, the blocking member forms a blockage on the air inlet 22 after a certain time interval;

[0117] The elastic member is installed between the main body and the blocking member, and is used to provide resistance to the movement of the blocking member when the blocking member blocks the air inlet 22, and to drive the blocking member to reset after the suction action stops.

[0118] By setting the blocking member and the elastic member, and by movably installing the blocking member on the air intake path of the air intake duct 22, the blocking member can directly utilize the negative pressure formed by the suction during the user's inhalation to drive the blocking member to overcome the prestress of the elastic member, so that the air intake duct 22 is blocked after a certain time interval, and the negative pressure of the environment in which the smoking substrate is located is increased in the second half of the suction. There is no need to set up a separate power mechanism, the structure is simple, the manufacturing is convenient, the cost is low, and the practicability is strong.

[0119] The blocking member includes a blocking ball 41 and a blocking ring 42 located in the air inlet 22;

[0120] The blocking ring 42 is installed on the inner wall of the air inlet 22, and the blocking ball 41 is located on the side of the blocking ring 42 away from the heating chamber;

[0121] When the blocking ball 41 abuts against the blocking ring 42, the air inlet 22 is blocked;

[0122] The elastic member is a second return spring 43 , and the second return spring 43 is installed between the blocking ball 41 and the main body 2 .

[0123] A sealing member is formed by the cooperation between the sealing ball 41 and the sealing ring 42, and the second return spring 43 is used as an elastic member. The negative pressure formed by the user's suction drives the sealing ball 41 to move toward the sealing ring 42 until the sealing ball 41 is abutted against the sealing ring 42, thereby blocking the air inlet 22. The structure is simple, the installation is convenient, and the practicability is strong.

[0124] A support member 44 is installed in the air inlet 22 between the blocking member and the heating chamber;

[0125] The support member 44 is connected to the main body 2, and an air inlet 440 is provided on the support member 44;

[0126] The second return spring 43 is a compression spring, and the compression spring is located between the support member 44 and the blocking ball 41 .

[0127] In fact, according to actual conditions, the support member 44 can be placed in the air inlet 22 at one end away from the heating chamber, and the tension spring can be used as the second return spring 43 to meet the use requirements. In this embodiment, the support member 44 with the air inlet 440 is inside the air inlet 22 to support the compression spring serving as the second return spring 43. It has a simple structure, is easy to install, and is highly practical.

[0128] A limiting member 45 is installed in the air inlet 22 at one end of the blocking member away from the heating chamber, and an air inlet 440 is also provided on the limiting member 45;

[0129] A guide blind hole 410 is provided on one side of the blocking ball 41 close to the stopper 45;

[0130] The limiting member 45 is provided with a guide rod 450 , and the guide rod 450 is passed through the guide blind hole 410 .

[0131] In fact, according to actual conditions, a compression spring can be used as a connecting part to directly connect the support part 44 and the blocking ball 41, and then a magnet can be provided in the blocking ball 41, and a magnetic ring can be provided in the air inlet 22. The displacement of the blocking ball 41 can be limited by the magnetic force of the magnetic ring on the magnet. In this embodiment, the maximum outward movement distance of the blocking ball 41 is limited by the limit member 45 to prevent the blocking ball 41 from falling from the air inlet 22. At the same time, the movement of the blocking ball 41 is limited by the cooperation between the guide rod 450 and the guide blind hole 410, which can prevent the blocking ball 41 from deflecting during use. The practicality is strong.

[0132] A mounting tube 46 is provided in the air inlet 22, and the blocking ball 41 and the blocking ring 42 are both located in the mounting tube 46;

[0133] The blocking ring 42 is threadedly connected to the mounting tube 46 .

[0134] In fact, according to actual conditions, the sealing ring 42 can be directly fixed on the main body 2. In this embodiment, the sealing ring 42 and the mounting tube 46 are screwed together so that the distance between the sealing ring 42 and the sealing ball 41 before suction can be adjusted, thereby adjusting the time for the sealing ball 41 to seal the sealing ring 42, which is very practical.

[0135] The present embodiment also discloses an application of a smoking device with adjustable negative pressure during smoking, including a heated cigarette 1 and the above-mentioned smoking device with adjustable negative pressure during smoking, wherein the heated cigarette 1 includes a cigarette core segment 11, a hollow segment 12 and a filter segment 13, the smoke-generating matrix is ​​located in the cigarette core segment 11, and the hollow segment 12 is radially provided with ventilation holes 120, and when the heated cigarette 1 is inserted into the heating mechanism, the ventilation holes 120 are located outside the heating cavity.

[0136] In fact, for smoking devices that cannot use heated cigarettes 1 and directly heat the smoking substrate and smoke through a mouthpiece, a through hole connected to the outside world can be opened on the passage between the mouthpiece and the smoking substrate, so that the outside air can directly enter the user's oral cavity without passing through the smoking substrate and the air inlet. This embodiment can effectively reduce the smoke temperature by using a heated cigarette 1 with ventilation holes 120 radially opened in the hollow section 12 on the device, so that the temperature of the smoke entering the oral cavity is softer, and the supplementary regulation of the smoke temperature state is achieved; at the same time, the surface temperature of the hollow section 12 is reduced to avoid the problem of the filter tip getting hot when smoking the heated cigarette 1, and the practicality is strong;

[0137] At the same time, in the second half of inhalation, that is, after the sealing mechanism blocks the air inlet 22, when the negative pressure of the environment in which the cigarette core segment 11 is located increases, the outside air can still continue to enter the user's mouth from the ventilation hole 120, thereby reducing the discomfort caused by the sudden decrease in the total air intake volume of the outside air entering the user's mouth after the air inlet 22 of the smoking device is blocked, and the practicality is strong.

[0138] In this embodiment, when in use, the heated cigarette 1 is inserted into the heating chamber so that the cigarette core segment 11 is located at the heating mechanism 21, and the heating mechanism 21 is used to heat the smoking matrix in the cigarette core segment 11, thereby causing the smoke-generating agent in the smoking matrix in the cigarette core segment 11 to precipitate, so that the aerosol is generated and released. At this time, the blocking ball 41 is pressed against the limiter 45 under the action of the second return spring 43 (compression spring), and the air inlet 22 is in an open state (such as Figure 7 and Figure 8 shown);

[0139] The user holds the filter segment 13 in his mouth and smokes the heated cigarette 1. In the first half of the smoking, the outside air enters the cigarette core segment 11 through the gap between the blocking ball 41 and the blocking ring 42, driving the aerosol in the cigarette core segment 11 into the hollow segment 12, and mixes with the air entering the hollow segment 12 through the ventilation hole 120, and then enters the user's mouth through the filter segment 13;

[0140] For example, if the user's single puff time is 2 seconds, the first half of the puff action refers to the 0th to 1st second of the puff, and the second half of the puff action refers to the 1st to 2nd second of the puff;

[0141] During this process, due to the flow of air, negative pressure is formed on the side of the blocking ball 41 close to the air inlet 22. Under the action of this negative pressure, the blocking ball 41 overcomes the prestress of the second return spring 43 (compression spring) and moves toward the blocking ring 42 until it abuts against the blocking ring 42, thereby blocking the air inlet 22 (such as Fig. 9 shown);

[0142] The user continues to smoke the heated cigarette 1. When the air inlet 22 is blocked, a greater negative pressure is formed in the smoke core section 11 of the heated cigarette 1. The negative pressure causes the smoke agent in the smoke-generating matrix in the smoke core section 11 to precipitate and enter the surface of each smoke-generating matrix in the smoke core section 11. For example, taking the smoke-generating matrix of several tobacco sheets as an example, the increased negative pressure drives the smoke agent in the deep of the tobacco sheets to the surface of the tobacco sheets, making it easier to be heated to generate aerosol for the user to inhale.

[0143] When the user stops smoking, the air pressure inside the smoking device returns to normal, and the blocking ball 41 is reset under the action of the second reset spring 43 (compression spring), so that the air inlet 22 is connected to the outside air again.

[0144] Embodiment three:

[0145] A smoking device with adjustable negative pressure during smoking of the present invention comprises:

[0146] A main body 2, wherein a heating chamber and an air inlet 22 are connected to each other;

[0147] A heating mechanism 21 for heating the smoking substrate, the heating mechanism 21 being arranged in the heating chamber;

[0148] The blocking mechanism is installed on the main body 2 and is used to block the air inlet 22 in the second half of the suction action.

[0149] The heating mechanism is a heating cylinder, and when in use, the heating cylinder is sleeved on the smoking substrate. In fact, a heating needle can also be used as a heating mechanism to heat the smoking substrate. In this embodiment, the smoking substrate is heated by the heating cylinder, and the heating uniformity is good and the practicability is strong.

[0150] The blocking mechanism includes a negative pressure sensor, a motor, a blocking member and a controller;

[0151] The negative pressure sensor is installed on the side wall of the air inlet 22 to detect the user's suction action;

[0152] The motor is fixedly mounted on the main body 2;

[0153] The blocking member is movably installed in the air inlet duct 22 and is drivingly connected to the power output shaft of the motor;

[0154] The controller is connected with the negative pressure sensor and the motor signal, and is used to control the motor to operate after detecting that the suction action has started for a certain period of time, thereby driving the blocking member to block the air inlet duct 22 .

[0155] The negative pressure condition in the air inlet duct 22 is detected by the negative pressure sensor. When inhalation is performed, outside air passes through the air inlet duct 22, which reduces the air pressure in the air inlet duct 22 and forms a negative pressure. When the negative pressure sensor detects the generation of negative pressure, the timing starts, and then after a certain period of time, that is, the second half of the inhalation action, the motor is controlled to operate, driving the blocking member to block the air inlet duct 22 until the inhalation action is completed. After the user stops inhaling, the air pressure in the air inlet duct 22 is balanced with the atmospheric pressure again. At this time, the motor controls the blocking member to reset.

[0156] The present embodiment also discloses an application of a smoking device with adjustable negative pressure during smoking, including a heated cigarette 1 and the above-mentioned smoking device with adjustable negative pressure during smoking, wherein the heated cigarette 1 includes a cigarette core segment 11, a hollow segment 12 and a filter segment 13, the smoke-generating matrix is ​​located in the cigarette core segment 11, and the hollow segment 12 is radially provided with ventilation holes 120, and when the heated cigarette 1 is inserted into the heating mechanism, the ventilation holes 120 are located outside the heating cavity.

[0157] In fact, for smoking devices that cannot use heated cigarettes 1 and directly heat the smoking substrate and smoke through a mouthpiece, a through hole connected to the outside world can be opened on the passage between the mouthpiece and the smoking substrate, so that the outside air can directly enter the user's oral cavity without passing through the smoking substrate and the air inlet. This embodiment can effectively reduce the smoke temperature by using a heated cigarette 1 with ventilation holes 120 radially opened in the hollow section 12 on the device, so that the temperature of the smoke entering the oral cavity is softer, and the supplementary regulation of the smoke temperature state is achieved; at the same time, the surface temperature of the hollow section 12 is reduced to avoid the problem of the filter tip getting hot when smoking the heated cigarette 1, and the practicality is strong;

[0158] At the same time, in the second half of inhalation, that is, after the sealing mechanism blocks the air inlet 22, when the negative pressure of the environment in which the cigarette core segment 11 is located increases, the outside air can still continue to enter the user's mouth from the ventilation hole 120, thereby reducing the discomfort caused by the sudden decrease in the total air intake volume of the outside air entering the user's mouth after the air inlet 22 of the smoking device is blocked, and the practicality is strong.

[0159] In this embodiment, when in use, the heated cigarette 1 is inserted into the heating chamber so that the cigarette core segment 11 is located at the heating mechanism 21, and the heating mechanism 21 is used to heat the smoking matrix in the cigarette core segment 11, thereby causing the smoke-generating agent in the smoking matrix in the cigarette core segment 11 to precipitate, so that the aerosol is generated and released. At this time, the air inlet 22 is in an open state;

[0160] The user holds the filter segment 13 in his mouth and smokes the heated cigarette 1. In the first half of the smoking, the outside air enters the cigarette core segment 11 through the gap between the blocking member and the air inlet 22, driving the aerosol in the cigarette core segment 11 into the hollow segment 12, and mixes with the air entering the hollow segment 12 through the ventilation holes 120, and then enters the user's mouth through the filter segment 13.

[0161] For example, if the user's single puff time is 2 seconds, the first half of the puff action refers to the 0th to 1st second of the puff, and the second half of the puff action refers to the 1st to 2nd second of the puff;

[0162] During this process, due to the flow of air, the air pressure in the air inlet 22 decreases, forming a negative pressure, which is detected by the negative pressure sensor. After a certain period of time (the second half of the suction action), the motor is controlled to drive the blocking member to block the air inlet 22;

[0163] The user continues to smoke the heated cigarette 1. When the air inlet 22 is blocked, a greater negative pressure is formed in the smoke core section 11 of the heated cigarette 1. The negative pressure causes the smoke agent in the smoke-generating matrix in the smoke core section 11 to precipitate and enter the surface of each smoke-generating matrix in the smoke core section 11. For example, taking the smoke-generating matrix of several tobacco sheets as an example, the increased negative pressure drives the smoke agent in the deep of the tobacco sheets to the surface of the tobacco sheets, making it easier to be heated to generate aerosol for the user to inhale.

[0164] When the user stops smoking, the air pressure inside the smoking device returns to normal. When the negative pressure sensor detects this signal, the motor is controlled to operate, driving the blocking member to reset and stop blocking the air inlet duct 22.

[0165] The above is a detailed introduction to a smoking device with adjustable negative pressure during the smoking process provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A smoking device with adjustable negative pressure during smoking, comprising: A main body (2), wherein a heating chamber and an air inlet passage (22) are provided in the main body (2); A heating mechanism (21) for heating the smoking substrate, wherein the heating mechanism (21) is arranged in the heating chamber; Features: It also includes a blocking mechanism, which is mounted on the main body (2) and is used to block the air inlet (22) in the second half of the suction action.

2. A smoking device with adjustable negative pressure during smoking according to claim 1, characterized in that: The blocking mechanism includes a blocking member and an elastic member; The blocking member is movably mounted on the main body and is located on the air intake path of the air intake duct (22); The blocking member blocks the air inlet (22) after a certain time interval under the user's suction action; The elastic member is installed between the main body and the blocking member, and is used to provide resistance to the movement of the blocking member when the blocking member blocks the air inlet (22), and to drive the blocking member to reset after the suction action stops.

3. A smoking device with adjustable negative pressure during smoking according to claim 2, characterized in that: The blocking member is a flap (31), and the flap (31) is hinged to the main body (2); When the flap (31) is flipped over to abut against the air inlet (22), the air inlet (22) is blocked; The elastic member is a first return spring (32), and the first return spring (32) is installed between the flap (31) and the main body (2).

4. The smoking device with adjustable negative pressure during smoking according to claim 3, characterized in that: The main body (2) is provided with a mounting cavity (220), and the mounting cavity (220) is in communication with the air inlet duct (22); The flap (31) is rotatably mounted in the mounting cavity (220).

5. The smoking device with adjustable negative pressure during smoking according to claim 2, characterized in that: The blocking member comprises a blocking ball (41) and a blocking ring (42) located in the air inlet duct (22); The blocking ring (42) is mounted on the inner wall of the air inlet duct (22), and the blocking ball (41) is located on a side of the blocking ring (42) away from the heating chamber; When the blocking ball (41) abuts against the blocking ring (42), the air inlet (22) is blocked; The elastic member is a second return spring (43), and the second return spring (43) is installed between the blocking ball (41) and the main body (2).

6. The smoking device with adjustable negative pressure during smoking according to claim 5, characterized in that: A support member (44) is installed in the air inlet duct (22) between the blocking member and the heating chamber; The support member (44) is connected to the main body (2), and an air inlet (440) is provided on the support member (44); The second return spring (43) is a compression spring, and the compression spring is located between the support member (44) and the blocking ball (41).

7. The smoking device with adjustable negative pressure during smoking according to claim 6, characterized in that: A limiting member (45) is installed in the air inlet duct (22) at one end of the blocking member away from the heating chamber, and an air inlet (440) is also provided on the limiting member (45); The blocking ball (41) is provided with a guide blind hole (410) on a side close to the stopper (45); The limiting member (45) is provided with a guide rod (450), and the guide rod (450) is inserted into the guide blind hole (410).

8. The smoking device with adjustable negative pressure during smoking according to claim 5, characterized in that: A mounting tube (46) is provided in the air inlet duct (22), and the blocking ball (41) and the blocking ring (42) are both located in the mounting tube (46); The sealing ring (42) is threadedly connected to the mounting tube (46).

9. The smoking device with adjustable negative pressure during smoking according to claim 1, characterized in that: The blocking mechanism includes a negative pressure sensor, a motor, a blocking member and a controller; The negative pressure sensor is mounted on a side wall of the air inlet duct (22) and is used to detect the user's suction action; The motor is fixedly mounted on the main body (2); The blocking member is movably installed in the air inlet duct (22) and is drivingly connected to the power output shaft of the motor; The controller is connected to the negative pressure sensor and the motor signal, and is used to control the motor to move after detecting that the suction action has started for a certain period of time, thereby driving the blocking member to block the air inlet (22).

10. An application of a smoking device with adjustable negative pressure during smoking, comprising a heated cigarette (1) and a smoking device with adjustable negative pressure during smoking as claimed in any one of claims 1 to 9, wherein the heated cigarette (1) comprises a core segment (11), a hollow segment (12) and a filter segment (13), the smoke-generating matrix is ​​located in the core segment (11), the hollow segment (12) is radially provided with ventilation holes (120), and when the heated cigarette (1) is inserted into a heating mechanism, the ventilation holes (120) are located outside the heating chamber.

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