CN111466619A - Low-temperature smoking set - Google Patents

Abstract

The invention discloses a low-temperature smoking device, comprising a casing, a middle frame arranged in the casing, and an electric heater accommodated in the middle frame. The casing includes a front casing and a rear casing assembled and connected by snaps. And the bottom end is also provided with a vertical locking piece that integrates the front shell, the rear shell and the middle frame. The front shell is provided with a front shell fastening hole, and the rear shell is provided with a rear shell fastening hole. A pair of fastening feet are matched and inserted into the fastening holes of the rear shell and the fastening holes of the front shell, and the vertical locking piece is fixedly connected to the middle frame through fastening bolts. The vertical locking piece is inserted into the fastening hole of the front shell and the fastening hole of the rear shell at the same time, the front shell and the rear shell are tightly clamped, and the vertical locking piece and the middle frame are fixed together by the fastening bolts, so that the The front shell, the middle frame and the rear shell form a more closely integrated whole, and the mechanical strength and structural strength of the smoking device are higher.

Description

low temperature smoking set

technical field

The invention belongs to the technical field of smoking articles, in particular to a low-temperature smoking article.

Background technique

Traditional cigarettes need to be ignited and burned by an open flame to generate tobacco smoke. Tobacco releases thousands of substances harmful to the human body during the process of high temperature and pyrolysis. The composition of tobacco, such as carbon monoxide, phenols, aldehydes, nicotine (nicotine), cigarette tar, etc., and the new low-temperature smoking set is to heat new tobacco at 200-260 degrees to generate smoke, which can effectively reduce the production of harmful substances and make it healthier .

At present, there are two types of low-temperature smoking sets on the market: central heating and surrounding heating. Both are powered by batteries to supply the heating element to heat up, heat the low-temperature cigarettes to a set temperature, and generate smoke for users to smoke.

Existing low-temperature smoking sets generally have split type and integrated type. Split type means that the low-temperature smoking set is divided into two combined units, one is a cigarette rod for smoking and the other is a charging cigarette case; the integrated type has only one unit. The shells of these low-temperature smoking devices are usually sleeve type, that is, cylindrical shape. When assembling, the internal parts are uniformly inserted into the shell. This kind of structural integrity is relatively good. The body has an extended length, and its interior often presents a certain depth, which is inconvenient to assemble.

Some low-temperature smoking devices use two-half or multi-piece housings, but they have the disadvantages of low bonding strength, poor bonding tightness, and difficult precision control after being fastened.

SUMMARY OF THE INVENTION

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, one of the objectives of the present invention is to provide a low-temperature smoking device with high bonding strength.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A low-temperature smoking device with vertical locking function, comprising a casing, a middle frame arranged in the casing, and an electric heater accommodated in the middle frame, and a heating cavity for accommodating tobacco products is formed in the electric heater , the casing includes a front casing and a rear casing that are assembled and connected by snaps, and the top and bottom ends of the casing are also provided with vertical locking pieces that combine the front casing, the rear casing and the middle frame into one, so The front shell is provided with a front shell fastening hole, the rear shell is provided with a rear shell fastening hole, and the vertical locking member has a pair of matching and inserting the rear shell fastening hole and the front shell fastening hole. Fastening feet, the vertical locking piece is fixedly connected with the middle frame through fastening bolts.

Further, the inner side walls at the edges of the front shell and the rear shell are provided with a number of buckles, and the outer wall of the middle frame is provided with a slot corresponding to the buckle, and the buckle is inserted. The snap assembly connection of the front shell and the rear shell is further realized in the snap slot.

Further, the middle frame includes a left frame body and a right frame body which are assembled and connected by snaps, and a receiving cavity for installing the electric heater is formed between the left frame body and the right frame body.

Further, a battery and a control board are also installed in the middle frame, and both the battery and the electric heater are electrically connected to the control board.

Further, the side surface of the fastening foot includes a correction slope and a guide slope connected in sequence toward the insertion direction of the fastening foot; wherein, the angle between the correction slope and the insertion direction of the fastening foot is greater than the angle between the guiding slope and the insertion direction of the fastening foot. angle.

Further, both ends of the casing are provided with openings, and the vertical locking pieces are provided in the openings at both ends of the casing at each joint seam of the casing.

Further, support plates are formed on the inner side wall of the casing on both sides of the joint seam, wherein one of the support plates is provided with the front shell fastening holes, and the other support plate is provided with the front shell fastening holes. There are fastening holes for the rear shell.

Further, the top of the casing is connected with a top cover through snaps, the bottom of the casing is connected with a bottom cover through snaps, and the top cover is provided with a tobacco product insertion hole that communicates with the electric heater. .

Further, the bottom cover is provided with a charging socket.

Further, a sealing spacer is arranged in the joint seam, and the sealing spacer is fixedly connected with the middle frame.

Further, the electric heater is a tubular heating element.

Compared with the prior art, the present invention has the following advantages:

1. In addition to being assembled and connected by snaps, the front shell and the rear shell are also fixed together by vertical locking pieces. Specifically: the front shell is provided with a front shell fastening hole, and the rear shell is provided with a rear shell fastening The vertical locking piece is inserted into the fastening hole of the front shell and the fastening hole of the rear shell at the same time, and the front shell and the rear shell are tightly clamped. The set threaded holes correspond. After inserting the vertical locking piece into the fastening hole of the front shell and the fastening hole of the rear shell, the vertical locking piece can be tightly fixed with the middle frame by the fastening bolts, so that the front The shell, the middle frame and the rear shell form a more closely integrated whole, and the mechanical strength and structural strength are stronger than the traditional bolt fastening, so that the product can meet the requirements of the drop test of the smoking apparatus.

2. The shell includes a front shell and a rear shell, and the middle frame includes a left frame body and a right frame body. When the smoking device is assembled, the left frame body and the right frame body are snapped together by a buckle, so as to form a space inside the middle frame. The space of the electric heater, so that the electric heater is fixed between the left frame body and the right frame body, and a heating cavity for accommodating tobacco products is formed inside the electric heater, so that it generates heat to heat the tobacco products to generate smoke for the user to smoke , and then the front shell and the rear shell are assembled and fixed on the outer wall of the middle frame through snaps to form the casing of the smoking device, and the assembly process of the entire smoking device is convenient and concise.

Description of drawings

Fig. 1 is the exploded view of the present invention;

Fig. 2 is the axial schematic diagram of the present invention;

Fig. 3 is the front view of the vertical locking member of the present invention;

Fig. 4 is the bottom view of the vertical locking member of the present invention;

Figure 5 is a top view of the present invention before installing a vertical locking member between the front shell and the rear shell;

6 is a top view of the present invention after adding a vertical locking member between the front shell and the rear shell;

Fig. 7 is the schematic diagram of X-X direction in Fig. 6;

Figure 8 is a schematic diagram of the structure of the front shell;

FIG. 9 is a schematic diagram of the fastening process of the front shell and the middle frame;

FIG. 10 is a schematic diagram of the snap-fitting process of the rear shell and the middle frame;

Figure 11 is a schematic cross-sectional view of the casing and the middle frame after assembly;

Fig. 12 is a partial enlarged view of part A in Fig. 11;

Fig. 13 is a partial enlarged view at B in Fig. 11;

Fig. 14 is the assembly schematic diagram of the middle frame;

Figure 15 is a schematic exploded view of the middle frame.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 and 2 , a low-temperature smoking device includes a casing 1 , a middle frame 2 arranged in the casing 1 , and an electric heater 3 accommodated in the middle frame 2 , and a PCB board is also arranged in the casing 1 4 (control panel) and battery 5, a heating cavity 6 for accommodating tobacco products is formed in the electric heater 3, a space for accommodating the battery 5 is also provided on the middle frame 2, a button 7 is provided on the outer surface of the casing 2, and the battery 5. Both the electric heater 3 and the button 7 are electrically connected to the PCB board 4, and the activation and closing of the low-temperature smoking device can be controlled through the button 7. The heat generated by the electric heater 3 heats the tobacco product in the heating chamber, so as to generate heat for the user. For smoking smoke, low-temperature cigarettes or cartridges can be used for tobacco products.

The electric heater 3 can directly use a tubular heating body, the inner cavity of the tubular heating body constitutes a heating cavity, and the corresponding heating method is surrounding heating. Of course, central heating can also be used to heat tobacco products. Correspondingly, the structure of the electric heater may include a shell, a heating cavity is formed in the shell, a heating plate or a heating rod is arranged in the heating cavity, and a heat preservation layer can also be set outside the shell to prevent heat from dissipating to the outside of the shell. .

Referring to FIGS. 1-4 , the casing 1 includes a front casing 101 and a rear casing 102 that are assembled and connected by snaps. The top and bottom ends of the casing 1 are also provided with the front casing 101 , the rear casing 102 and the middle frame 2 combined into a The integral vertical locking member 8, the two ends of each vertical locking member 8 are formed with a fastening foot 9 extending toward the middle frame 2, and the front casing 101 is provided with a front casing fastening hole 10 adapted to one of the fastening legs 9 , the rear shell 102 is provided with a rear shell fastening hole 11 adapted to another fastening foot, at least one screw counterbore 13 is formed in the middle of the vertical locking member 8, and the middle frame 2 is provided with a screw counterbore corresponding to the hole 11 The threaded hole 12 and the vertical locking member 8 are fixedly connected with the middle frame 2 through the fastening bolt 14 which is inserted into the bolt countersunk hole and the threaded hole 12 .

In order to ensure the strength requirements of the connection, the vertical locking member 8 is made of high-strength materials, such as SUS304, spring steel and other materials. In order to facilitate the production of the vertical locking member, the body of the vertical locking member The feet and screw counterbores are punched and formed by sheet metal. In order to improve the strength of the vertical locking piece, reinforcing ribs can also be punched out on the body of the locking piece. Of course, the vertical locking piece can also be injection-molded by an injection molding machine.

Referring to FIGS. 5-7 , in this embodiment, the front case 101 and the rear case 102 are not only assembled and connected by snaps, but also fixed together by the vertical locking member 8 , specifically: the front case 101 is provided with a front case Fastening hole 10, rear shell fastening hole 11 is provided on rear shell 102, vertical locking member 8 is inserted into front shell fastening hole 10 and rear shell fastening hole 11 at the same time, and the front shell 101 and rear shell 102 Tightly stuck, the vertical locking member 8 is also provided with screw countersunk holes, which correspond to the threaded holes 12 provided on the middle frame 2. When the vertical locking member 8 is inserted into the fastening hole 10 of the front shell and the rear shell is tightened After fixing in the hole 11, the vertical locking member 8 can be tightly fixed with the middle frame 2 by the fastening bolts 14, so that the front shell 101, the middle frame 2 and the rear shell 102 form a tightly combined whole. This embodiment , the insertion direction of the vertical locking member 8 and the insertion direction of the buckle are perpendicular to each other or form a certain angle, so that the smoking device also has a vertical locking function, so that the mechanical strength and structural strength are stronger than the traditional bolt fastening, so that the The product can meet the drop test requirements of smoking equipment.

In one embodiment, referring to FIG. 3 and FIG. 4 , the fastening foot 9 is inserted vertically into the fastening hole of the housing 1, and the side of the fastening foot 9 facing the other fastening foot of the vertical locking member includes the insertion direction of the fastening foot. The correcting inclined surface 901 and the guiding inclined surface 902 connected in sequence, and the surface that cooperates with the fastening void is the vertical surface 903, wherein the angle between the correcting inclined surface 901 and the insertion direction of the fastening foot is greater than the angle between the guiding inclined surface 902 and the insertion direction of the fastening foot. Angle fastening feet, so as to separate the fasteners into a guide section, a correction section and a fastening section connected in sequence, the fastening section is a square body, the guide section and the correction section are wedge-shaped bodies, and the longitudinal section of the guide section and the correction section It is a right-angled trapezoid, the guide section is formed with a guide slope, and the correction section is formed with a correction slope. The angle between the guide slope and the extension direction of the fastening feet is smaller than the angle between the correction slope and the extension direction of the fastening feet. In the process of inserting into the fastening hole of the front shell and the fastening hole of the rear shell, the guide section of the fastening foot enables the vertical locking piece to be inserted quickly. During the continuous insertion process, the correction section makes the front shell and the rear shell fit together The accuracy is improved, and the tightness of the combination of the two is improved. After the correction section, the gap or interference fit between the fastening section and the fastening hole is finally used to make the matching accuracy between the front shell and the rear shell meet the final requirements.

In one embodiment, referring to FIGS. 8 to 13 , a plurality of first buckles 15 (hooks) are provided on the inner side wall at the edge of the front shell 101 , and the outer wall of the middle frame 2 is provided with the first buckles 15 . The matching first card slot 16, the inner side wall at the edge of the rear shell 102 is provided with a plurality of second snap buttons 17, the outer wall of the middle frame 2 is provided with a second snap button 18 matched with the second snap buttons 17, The specific process of the snap assembly and connection of the front shell 101 and the rear shell 102 is as follows: when the front shell 101 is assembled, the middle frame 2 is inserted into the front shell 101, and the first snap 15 on the front shell 101 is elastically deformed and clamped into the first shell 101. In a clip slot 16, the fixed connection between the front shell 101 and the middle frame 2 is realized. The assembly process of the rear shell 102 is similar to that of the front shell 101, which will not be repeated here, so that the front shell 101 and the rear shell 102 are assembled on the The entire shell is formed outside the middle frame 2 .

In one embodiment, referring to FIGS. 14-15 , the middle frame 2 includes a left frame body 201 and a right frame body 202 which are assembled and connected by snaps, and a space for installing an electric heater is formed between the left frame body 201 and the right frame body 202 The receiving cavity of the device 3. In this embodiment, the specific structure of the snap connection of the middle frame 2 is provided as follows: a plurality of third snap grooves 19 are provided on the edge of the left frame body 201 , and the third snap grooves 19 are provided on the edge of the right frame body 202 to match The third buckle 20, when the left frame body 201 and the right frame body 202 are assembled, the third buckle 20 is inserted into the third slot 19 to realize the buckle connection.

In one embodiment, referring to FIG. 1 , a chamber for installing the battery 5 is also formed between the left frame body 201 and the right frame body 202 , the battery 5 is snap-fitted and fixed in the chamber, and the battery 5 is connected to the electric heater. There is a PCB board 4 between 3, and the battery 5 and the electric heater 3 are electrically connected to the PCB board 4. As for the control circuit composed of the battery 5, the electric heater 3, the control button 7 and the control board, those skilled in the art can Routine selection and adjustment according to actual needs is not the focus of the improvement of the present application, and will not be repeated here.

During assembly of this embodiment, the left frame body 201 and the right frame body 202 are buckled together to form a space for accommodating the battery and the electric heater inside, so that the battery 5 and the electric heater 3 are fixed on the left frame body 201 and the right frame body Between 202, between the battery 5 and the electric heater 3, there is a PCB board (control board) that is electrically connected to both, the PCB board is fastened to the middle frame 2 through screws, and the battery 5 is connected to the middle frame 2 through the PCB board 4. The heater is energized to generate heat to heat the tobacco product to produce aerosol for the user to draw.

In one embodiment, referring to FIG. 1 , FIG. 2 and FIG. 7 , both the top and bottom of the casing 1 are provided with openings, and after the front casing 101 and the rear casing 102 are assembled, two two A vertical locking piece 8 is provided at each shell joint seam in the openings at both ends of the shell 1 . In this embodiment, since the connection strength at the joint seam is the weakest, vertical locking members 8 are provided at both ends of each joint seam of the housing 1 to strengthen the connection at the joint seam, thereby further improving the overall The bond strength of smoking articles. A pair of vertical locking pieces located at the same end can be made as a single piece by integral molding, which reduces the manufacturing cost, but also increases the difficulty of assembly.

Referring to FIG. 2 , the specific connection structure of the vertical locking member 8 and the front case 101 and the rear case 102 can be adopted: supporting plates 21 are formed on the inner side walls of the front case 101 and the rear case 102 at both sides of the joint seam, and are located at The support plate 21 on the front shell 101 is provided with a front shell fastening hole 10 , the support plate 21 on the rear shell 102 is provided with a rear shell fastening hole 11 , and both ends of the vertical locking member 8 are installed by the fastening feet 9 on a pair of support plates 21 .

Referring to FIG. 5 and FIG. 6 , preferably, a sealing spacer 22 is further provided in each shell joint seam, and the sealing spacer 22 can be made of rubber material. The sealing spacer 22 is integrally formed with the middle frame 2. By setting the sealing spacer 22 between the joint seams, the sealing performance of the joint seam can be improved to prevent the leakage of smoke. 101 and the rear shell 102 have a certain assembly margin to prevent the front shell 101 and the rear shell 102 from being stuck when assembled. In addition, the sealing spacer 22 can also be designed as a decorative strip, so that the overall appearance of the smoking device is more beautiful.

Referring to FIG. 1 , in one embodiment, a top cover 23 is connected to the top opening of the housing 1 through snaps, and a bottom cover 24 is connected to the bottom opening of the housing 1 through snaps. The top cover 23 and the bottom cover 24 connect the housing Both ends of 1 are blocked, which on the one hand can effectively prevent smoke from overflowing, and on the other hand, the vertical locking member 8 can also be blocked and hidden in the casing 1 to improve the aesthetics of the smoking set.

1, for the insertion of tobacco products, the top cover 23 is also provided with a tobacco product insertion hole (not shown in the figure) that communicates with the heating chamber 6. In order to prevent dust from entering the tobacco product insertion hole, the top cover A cover 25 for covering or opening the insertion hole of the tobacco product is provided on the upper part 23 .

The tobacco product is inserted into the heating chamber 6 of the electric heater 3 from the insertion hole to generate smoke for the user to draw. As for the arrangement of the flue, those skilled in the art can make adaptive selections as needed. For example, the bottom cover 24 can be provided with an air inlet 26 that communicates with the bottom end of the heating chamber 6. The holes are connected in sequence to form a straight-through flue, and the airflow enters the heating chamber from the air inlet and flows out through the cigarette or tobacco product insertion hole, or the gap between the inner wall of the heating chamber and the outer wall of the cigarette can be directly used for air intake.

Referring to FIG. 1 , in order to facilitate charging of the battery, a charging socket 27 is provided on the bottom cover 24 , and a plug corresponding to the charging socket 27 is provided on the control board.

The snap connection structure of the top cover 23 and the bottom cover 24 is similar to the connection structure of the middle frame 2 and will not be repeated here. In addition, the specific structures of the buckle and the buckle in the buckle connection structure mentioned in the above embodiments can all adopt the prior art, which will not be repeated here.

9, 10 and 11, the assembly process of the low-temperature smoking device in this embodiment is as follows: the left frame body 201 and the right frame body 202 are fastened together, one side of the front shell 101 is fastened to the left frame body 201, and the other side is fastened together. Fastened to the right frame body 202; one side of the rear case 102 is fastened to the left frame body 201, and the other side is fastened to the right frame body 202; the top cover 23 is fastened to the front case 101 and the rear case 102 at the same time; the bottom cover 24 It is fastened on the front case 101 and the rear case 102 . In this embodiment, the shell of the low-temperature smoking device includes a front shell 101 and a rear shell 102, which are fastened together to form the shell part of the low-temperature smoking device. The middle frame 2 includes a left frame body 201 and a right frame body 202, and the front shell 101 , the rear case 102 , the left frame body 201 and the right frame body 202 , and the top cover 23 and the bottom cover 24 together constitute the appearance and frame of the low-temperature smoking device.

In this embodiment, the casing 1 includes a front casing 101 and a rear casing 102, and the middle frame 2 includes a left frame body 201 and a right frame body 202. When the smoking device is assembled, the left frame body 201 and the right frame body 202 are fastened together by snaps Together, a space for accommodating an electric heater and a battery is formed inside the middle frame 2, so that the electric heater 3 and the battery 5 are fixed between the left frame body 201 and the right frame body 202, and a tobacco accommodating space is formed inside the electric heater The heating chamber of the product makes it heat up to heat the tobacco product to generate smoke for the user to smoke, and then the front shell 101 and the rear shell 102 are assembled and fixed on the outer wall of the middle frame 2 by snaps to form the shell of the smoking device. The assembly process is convenient and concise.

The above-mentioned embodiments are only examples to clearly illustrate the present invention, and are not intended to limit the embodiments. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. Neither need nor can all embodiments be exhaustive here. However, the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. A low-temperature smoking appliance, comprising a casing, a middle frame arranged in the casing, and an electric heater accommodated in the middle frame, wherein a heating chamber for accommodating tobacco products is formed in the electric heater, and the casing The body includes a front shell and a rear shell that are assembled and connected by snaps, and is characterized in that: the top and bottom ends of the shell are also provided with vertical locking pieces that integrate the front shell, the rear shell and the middle frame, so The front shell is provided with a front shell fastening hole, the rear shell is provided with a rear shell fastening hole, and the vertical locking member has a pair of matching and inserting the rear shell fastening hole and the front shell fastening hole. Fastening feet, the vertical locking piece is fixedly connected with the middle frame through fastening bolts. 2 . The low-temperature smoking device according to claim 1 , wherein the inner side walls at the edges of the front shell and the rear shell are provided with a plurality of buckles, and the outer wall of the middle frame is provided with the buckles. 3 . It is adapted to the corresponding card slot, and the clip is inserted into the card slot to realize the clip assembly connection of the front shell and the rear shell. 3. The low-temperature smoking device according to claim 2, wherein the middle frame comprises a left frame body and a right frame body which are assembled and connected by snaps, and a space for installation is formed between the left frame body and the right frame body. the accommodating cavity of the electric heater. 4 . The low-temperature smoking device according to claim 3 , wherein a battery and a control board are further installed in the middle frame, and both the battery and the electric heater are electrically connected to the control board. 5 . 5 . The low-temperature smoking device according to claim 1 , wherein the side surface of the fastening foot comprises a correction slope and a guide slope connected in sequence toward the insertion direction of the fastening foot; wherein, the correction slope is connected with the insertion direction of the fastening foot. 6 . The included angle is greater than the included angle between the guide slope and the insertion direction of the fastening feet. 6. The low-temperature smoking device according to any one of claims 1-5, characterized in that: both ends of the casing are provided with openings, and the openings at both ends of the casing are located at the joint seams of each casing. the vertical lock. 7 . The low-temperature smoking device according to claim 6 , wherein support plates are formed on the inner side wall of the casing on both sides of the joint seam, wherein one of the support plates is provided with the front plate. 8 . shell fastening holes, and the rear shell fastening holes are provided on the other support plate. 8 . The low-temperature smoking device according to claim 7 , wherein the top of the casing is connected with a top cover by means of snaps, the bottom of the casing is connected with a bottom cover by means of snaps, and the top cover is provided with a bottom cover. 9 . There is a tobacco product insertion hole in communication with the electric heater. 9 . The low-temperature smoking device according to claim 8 , wherein a charging socket is provided on the bottom cover. 10 . 10 . The low-temperature smoking device according to claim 6 , wherein a sealing spacer is arranged in the joint seam, and the sealing spacer is fixedly connected with the middle frame. 11 .

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