CN219265823U - Cigarette smoke collection device - Google Patents

Abstract

The present disclosure provides a cigarette smoke collection device, comprising: a collection box with a smoke volatilization chamber for collecting smoke generated by burning cigarettes; a first fixing device configured to make the The sampling needle is kept fixed relative to the collection box; the second fixing device is configured to keep the lighted cigarette fixed relative to the collection box; and the filtering device includes a particle filter screen arranged in the collection box, the The particle filter is configured to prevent particles in the flue gas from entering the sampling needle. The cigarette smoke collection device provided by the present disclosure can improve the accuracy of smoke content detection.

Description

Cigarette smoke collection device

technical field

The present disclosure relates to the technical field of cigarette smoke detection, in particular to a cigarette smoke collection device.

Background technique

Cigarettes produce gas containing complex components during the combustion process. In the process of studying smoke, it is more important to analyze and collect various components in smoke. However, according to the related technologies known by the inventor, some cigarette smoke collection devices still have the following deficiencies: (1) when the smoke is collected, the unfiltered smoke and particles in the smoke may cause the smoke content to be detected. The accuracy is reduced; (2) The volatile aroma components produced by cigarette combustion at different temperatures are inconsistent, and there is a lack of temperature monitoring and control during the collection process; (3) There is no waste gas treatment after the smoke is collected. These deficiencies make the cigarette smoke collection device unable to meet the needs of users well.

Utility model content

The purpose of the present disclosure is to provide a cigarette smoke collection device to improve the accuracy of smoke content detection.

The present disclosure provides a cigarette smoke collection device, comprising:

The collection box has a smoke volatilization chamber for collecting smoke generated by burning cigarettes;

a first fixing device configured to keep a sampling needle required for collecting the smoke fixed relative to the collection box;

a second securing device configured to hold the lit cigarettes stationary relative to the collection box; and

The filter device includes a particle filter set in the collection box, and the particle filter is configured to prevent particles in the flue gas from entering the sampling needle.

According to some embodiments of the present disclosure, the first fixing device and the second fixing device are sequentially installed on the collection box from top to bottom, and the particle filter is arranged on the first fixing device and the Between the installation positions of the second fixing device, the smoke volatilization chamber is divided into a burning section for accommodating the lit cigarette and a sampling section for accommodating the open end of the sampling needle.

According to some embodiments of the present disclosure, the first fixing device includes a first clamping device configured to clamp the sampling needle.

According to some embodiments of the present disclosure, the first clamping device includes a plurality of first clamping parts, and the first fixing device further includes a first installation part, and the first installation part is installed on the collection box And a placement hole for placing the sampling needle is provided, and at least one of the first clamping parts is movably arranged along the radial direction of the placement hole, so that a plurality of the first clamping parts can move along the radial direction of the placement hole. Place the radials of the holes closer to or farther from each other.

According to some embodiments of the present disclosure, the first clamping device includes a first moving block and a spring, the first mounting part is provided with a sliding slot, and the first moving block is movably arranged in the sliding slot Inside, the first end of the spring is connected to the groove wall of the chute, the second end of the spring is connected to the first moving block, and the first moving block is connected to the first clamping part to drive the first clamping part to move.

According to some embodiments of the present disclosure, the first fixing device further includes a first elastic ring or a first elastic strip installed inside the placement hole.

According to some embodiments of the present disclosure, the collection box includes a box body, a knob and a clamping plate, the knob is rotatably mounted on the box body, the clamping plate is connected to the knob, and the knob is It is configured to be switched between a first state and a second state, wherein, in the first state, the clamping plate is blocked by the side of the first mounting portion facing the outside of the collection box, and in the second state In the second state, the clamping plate is out of contact with the first installation part.

According to some embodiments of the present disclosure, the second securing device comprises a second holding device configured to hold the lighted cigarette.

According to some embodiments of the present disclosure, the second clamping device includes a plurality of the second clamping parts, and the multiple second clamping parts can be arranged close to or apart from each other.

According to some embodiments of the present disclosure, the second clamping device includes a rotating rod and a second moving block, and the second fixing device further includes a second installation part, and the second installation part is installed on the collection box , the rotating rod is installed on the second mounting part, and the two ends of the rotating rod are provided with a first thread and a second thread in the opposite direction, and the two second moving blocks respectively pass through the first The thread and the second thread cooperate with the rotating rod, and the two second clamping parts are correspondingly connected to the two second moving blocks.

According to some embodiments of the present disclosure, the second fixing device further includes a second elastic strip or a second elastic ring mounted on the inner side of the second clamping portion.

According to some embodiments of the present disclosure, the collection box includes a box body, a knob and a clamping plate, the knob is rotatably mounted on the box body, the clamping plate is connected to the knob, and the knob is It is configured to be switched between a first state and a second state, wherein, in the first state, the clamping plate is blocked by the side of the second mounting portion facing the outside of the collection box, and in the second state In the second state, the clamping plate is out of contact with the second installation part.

According to some embodiments of the present disclosure, it further includes a heating device and/or a temperature detection device, the heating device is arranged in the collection box and is configured to heat the gas in the collection box, the temperature detection device is arranged in the within the collection box and configured to detect the temperature of the flue gas.

According to some embodiments of the present disclosure, a fan is further included, and the fan is configured to blow air into the collection box to adjust the flow velocity of the flue gas.

According to some embodiments of the present disclosure, the collection box includes a partition, the collection box also has a fan chamber, the fan is arranged in the fan chamber, and the partition is installed on the collection box in a push-pull manner to The flue gas volatilization chamber is communicated with or separated from the fan chamber.

According to some embodiments of the present disclosure, the filter device further includes a dust removal filter, the dust removal filter is arranged downstream of the air outlet of the fan and is configured to block the particles brought in by the fan from outside the collection box .

According to some embodiments of the present disclosure, an exhaust gas collection device is further included, and the exhaust gas collection device is disposed in the collection box and configured to collect excess smoke.

According to some embodiments of the present disclosure, the first fixing device and the second fixing device are sequentially installed on the collection box from top to bottom, and the exhaust gas collection device includes an adsorption device arranged on the top of the collection box. plate.

When collecting smoke through the cigarette smoke collection device provided by the embodiments of the present disclosure, the cigarette burns inside the collection box, and the smoke generated by the combustion passes through the particle filter, which can filter the particles in the smoke, and the filtered smoke It can enter the inside of the sampling needle, collect relatively pure flue gas, reduce the influence of particulate matter in the flue gas on the detection of flue gas components, and help improve the accuracy of flue gas content detection.

Other features of the present disclosure and advantages thereof will become apparent through the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

Description of drawings

The drawings described here are used to provide a further understanding of the present disclosure, and constitute a part of the present application. The schematic embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute improper limitations to the present disclosure. In the attached picture:

Fig. 1 is a schematic structural diagram of a cigarette smoke collection device according to some embodiments of the present disclosure.

Fig. 2 is a schematic diagram of the internal structure of the cigarette smoke collecting device shown in Fig. 1 .

Fig. 3 is a schematic structural view of the first fixing device of the cigarette smoke collection device shown in Fig. 1 .

Fig. 4 is a schematic structural view of the second fixing device of the cigarette smoke collection device shown in Fig. 1 .

Fig. 5 is a schematic diagram of a partially enlarged structure at A of the cigarette smoke collecting device shown in Fig. 1 .

In Fig. 1 to Fig. 5, each reference sign represents respectively:

1. Collection box; 11. Box body; 12. Knob; 121. Raised part; 122. Slotted part;

2. The first fixing device; 21. The first installation part; 22. The placement hole; 23. The first elastic ring; 24. The first clamping part; 25. The connecting rod; 26. The first moving block; 27. The spring; 28. Chute;

3. The second fixing device; 31. The second installation part; 32. The handle; 33. The connecting plate; 34. The rotating rod; 35. The second moving block; 36. The second clamping part; 37. The second elastic bar;

41. Particle filter; 42. Dust filter;

5. Heating device;

6. Fan;

7. Temperature detection device;

8. Exhaust gas collection device.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. meaning, and therefore cannot be construed as limiting the scope of protection of the present disclosure.

In the description of the present disclosure, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to Must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present disclosure; the orientation words "inside and outside" refer to inside and outside relative to the outline of each part itself.

As shown in FIGS. 1 to 5 , some embodiments of the present disclosure provide a cigarette smoke collection device, including a collection box 1 , a first fixing device 2 , a second fixing device 3 and a filtering device.

The collection box 1 has a smoke volatilization chamber for collecting smoke generated by burning cigarettes. The first fixing device 2 is configured to keep the sampling needles required for collecting smoke fixed relative to the collection box 1 . The second fixing device 3 is configured to keep the lighted cigarettes fixed relative to the collection box 1 . The filter device includes a particle filter 41 arranged in the collection box 1 , and the particle filter 41 is configured to prevent particles in the flue gas from entering the sampling needle.

When collecting smoke through the cigarette smoke collection device provided by the embodiments of the present disclosure, the cigarette burns inside the collection box, and the smoke generated by the combustion passes through the particle filter, which can filter the particles in the smoke, and the filtered smoke It can enter the inside of the sampling needle, collect relatively pure flue gas, reduce the influence of particulate matter in the flue gas on the detection of flue gas components, and help improve the accuracy of flue gas content detection.

In some embodiments, as shown in FIG. 2 , the first fixing device 2 and the second fixing device 3 are sequentially installed on the collection box 1 from top to bottom, and the particle filter 41 is arranged on the first fixing device 2 and the second fixing device. between the installation positions of the device 3, and divide the smoke volatilization chamber into a burning section for accommodating lit cigarettes and a sampling section for accommodating the open end of a sampling needle.

In the above embodiment, the cigarette smoke enters the sampling zone through the particle filter 41 from the combustion zone located below, so that the headspace collection of the cigarette smoke is realized while filtering the particulate matter in the smoke.

As one of the ways to keep the sampling needle fixed relative to the collection box, in some embodiments, the first fixing device 2 includes a first clamping device configured to clamp the sampling needle.

In some embodiments, as shown in FIG. 3 , the first clamping device includes a plurality of first clamping parts 24, and the first fixing device 2 further includes a first installation part 21, and the first installation part 21 is installed on the collection box 1 and is provided with a placement hole 22 for placing a sampling needle, at least one first gripper 24 is movably arranged along the radial direction of the placement hole 22, so that a plurality of first grippers 24 can move along the radial direction of the placement hole 22 move closer or farther away from each other.

In some embodiments, as shown in FIG. 3 , the first clamping device includes a first moving block 26 and a spring 27 , a slide groove 28 is provided on the first mounting part 21 , and the first moving block 26 is movably arranged on the slide In the groove 28, the first end of the spring 27 is connected to the groove wall of the chute 28, the second end of the spring 27 is connected to the first moving block 26, and the first moving block 26 is connected with the first clamping part 24 to drive the first The clamping portion 24 moves.

When the operator needs to fix the sampling needle, he first pushes the first clamping part 24, and when the first clamping part 24 moves, it drives the first moving block 26 to move, and then the spring 27 is compressed, and then the sampling needle is placed in the placement hole 22, the first clamping portion 24 is released, and the elastic force of the spring 27 enables the sampling needle to be tightly fixed. The first fixing device 2 with the above structure is convenient for the operator to disassemble and assemble the sampling needle. In the embodiment shown in FIG. 3 , the first clamping part 24 and the first moving block 26 can be connected by a connecting rod 25 .

In some embodiments, as shown in FIG. 3 , the first fixing device 2 further includes a first elastic ring 23 or a first elastic strip installed inside the placement hole 22 .

The first elastic ring or the first elastic strip can be made of rubber. By arranging the first elastic ring or the first elastic strip inside the placement hole, the sampling needle can be kept in close contact with the first elastic ring or the first elastic strip when placed in the placement hole, so that the sampling needle can be more reliably fixed in the placement hole inside, and can avoid smoke leakage.

In some embodiments, as shown in FIG. 5 , the collection box 1 includes a box body 11, a knob 12 and a clamping plate 13, the knob 12 is rotatably mounted on the box body 11, the clamping plate 13 is connected to the knob 12, and the knob 12 It is configured to switch between a first state and a second state, wherein, in the first state, the clamping plate 13 is blocked on the side of the first mounting portion 21 facing the outside of the collection box 1, and in the second state, the clamping plate 13 out of contact with the first installation part 21 .

There can be one or more knobs 12 and clamping plates 13 . In the embodiment shown in FIG. 5 , the knobs may be arranged at four corners of the first installation part 21 . The knob 12 may include a protruding portion 121 and a slotted portion 122 , and the clip 13 is connected to the knob 12 through a connecting slot defined in the slotted portion 122 . The operator can rotate the protruding part 121, and the protruding part 121 drives the slotted part 122 to rotate, and then the notched part 122 can drive the clamping plate 13 to rotate, so that the clamping plate 13 is blocked on the outside of the first mounting part 21 facing the collection box 1 One side of the first installation part 21, or the side facing the outside of the collection box 1 away from the first installation part 21, so that the first installation part 21 can be disassembled.

As one of the ways to keep the lighted cigarettes fixed relative to the collection box, in some embodiments, the second fixing device 3 comprises a second holding device configured to hold the lighted cigarettes.

In some embodiments, as shown in FIG. 4 , the second clamping device includes a plurality of second clamping parts 36 , and the multiple second clamping parts 36 can be arranged close to or far away from each other.

In some embodiments, as shown in FIG. 4 , the second clamping device includes a rotating rod 34 and a second moving block 35, and the second fixing device 3 also includes a second installation part 31, and the second installation part 31 is installed on the collection box 1, the rotating rod 34 is installed on the second mounting part 31, and the two ends of the rotating rod 34 are provided with a first screw thread and a second screw thread in the opposite direction, and two second moving blocks 35 pass through the first screw thread and the second screw thread respectively. The thread cooperates with the rotating rod 34 , and the two second clamping parts 36 are correspondingly connected to the two second moving blocks 35 .

When the operator needs to fix the cigarette, he can turn the rotating rod 34 according to the diameter of the cigarette. The rotating rod 34 drives the two second moving blocks 35 to move toward each other, and then drives the second clamping part 36 to move toward each other, so that the cigarette can be fixed on the two sides. Between the second clamping parts 36.

In the embodiment shown in FIG. 4 , the second fixing device 3 may further include a connecting plate 33 through which the rotating rod 34 is connected to the second mounting portion 31 . In order to make it easier for the operator to assemble and disassemble the second fixing device, the second fixing device 3 may further include a handle 32 disposed on a side of the second installation portion 31 facing the outside of the collection box 1 .

In some embodiments, as shown in FIG. 4 , the second fixing device 3 further includes a second elastic strip 37 or a second elastic ring mounted on the inner side of the second clamping portion 36 .

The second elastic strip or the second elastic ring can be made of rubber. The second elastic strip or the second elastic ring provided on the inner side of the second clamping part can form a close contact with the cigarette, so that the cigarette can be fixed on the second clamping part more reliably and prevent it from loosening.

In some embodiments, as shown in FIG. 5 , the collection box 1 includes a box body 11, a knob 12 and a clamping plate 13, the knob 12 is rotatably mounted on the box body 11, the clamping plate 13 is connected to the knob 12, and the knob 12 It is configured to switch between a first state and a second state, wherein, in the first state, the clamping plate 13 is blocked on the side of the second mounting portion 31 facing the outside of the collection box 1, and in the second state, the clamping plate 13 out of contact with the second mounting portion 31 .

There can be one or more knobs 12 and clamping plates 13 . In the embodiment shown in FIG. 5 , the knob 12 may be disposed at four corners of the second mounting portion 31 . The knob 12 may include a protruding portion 121 and a slotted portion 122 , and the clip 13 is connected to the knob 12 through a connecting slot defined in the slotted portion 122 . The operator can rotate the raised part 121, and the raised part 121 drives the slotted part 122 to rotate, and then the slotted part 122 can drive the clamping plate 13 to rotate, so that the clamping plate 13 is blocked on the outside of the second mounting part 31 facing the collection box 1 One side of the second installation part 31, or the side facing the outside of the collection box 1 away from the second installation part 31, so that the second installation part 31 can be disassembled.

In some embodiments, as shown in FIG. 2 , the cigarette smoke collection device further includes a heating device 5 and/or a temperature detection device 7 , the heating device 5 is arranged in the collection box 1 and is configured to heat the gas in the collection box 1 , the temperature detection device 7 is arranged in the collection box 1 and configured to detect the temperature of the flue gas.

In the above embodiment, the temperature inside the collection box 1 can be detected by the temperature detection device 7, and the operator can control the temperature inside the collection box 1 by the heating device 5, so as to facilitate the collection and make the cigarettes burn at different temperatures smoke produced.

In some embodiments, as shown in FIG. 2 , the cigarette smoke collection device further includes a fan 6 configured to blow air into the collection box 1 to adjust the flow rate of the smoke.

When the blower 6 is started, the gas flow velocity in the collection box 1 is accelerated, which facilitates the flue gas to flow faster and enter the sampling needle. Moreover, the flow rate of flue gas can be adjusted by changing the rotation speed of the fan 6 .

In some embodiments, as shown in Figure 2, the collection box 1 includes a partition 15, the collection box 1 also has a fan chamber, the fan 6 is arranged in the fan chamber, and the partition 15 is installed on the collection box 1 in a push-pull manner so that the smoke The vaporization chamber and the blower chamber are connected or separated.

Based on the above settings, when it is necessary to capture flue gas statically, the partition board can be pushed in to separate the flue gas volatilization chamber from the fan room, so as to prevent the flue gas from escaping from the air inlet of the fan room; when flue gas needs to be captured dynamically, it can be pulled Open the partition, connect the smoke volatilization chamber with the fan chamber, and turn on the fan.

In the embodiment shown in Fig. 2, the collection box 1 can also include a slot 14 adapted to the end of the partition 15, and when the slot 14 is matched with the partition 15, the partition 15 connects the smoke volatilization chamber and The fan chamber is separated, and the smoke volatilization chamber communicates with the fan chamber when the partition plate 15 is drawn out of the draw-in slot 14 .

In some embodiments, as shown in FIG. 2 , the filtering device further includes a dust filter 42 , which is disposed downstream of the air outlet of the fan 6 and is configured to block particles brought in by the fan 6 from outside the collection box 1 .

By setting the dust removal filter 42, dust and other particles outside the collection box can be prevented from entering the collection box, and impurities can be prevented from being mixed in the flue gas, which can further ensure the accuracy of flue gas content detection.

In the embodiment shown in Fig. 2, the fan 6 can be arranged at the bottom in the collection box 1, and the dust filter 42 is arranged above the fan 6 and separates the space where the fan 6 is located from the space where the lit cigarettes are located.

In some embodiments, as shown in FIG. 2 , the cigarette smoke collection device further includes an exhaust gas collection device 8 , which is disposed in the collection box 1 and configured to collect excess smoke.

The tail gas collection device 8 can only play the role of collecting excess flue gas, and the collected flue gas is processed by other devices, and can also play the role of collecting and treating excess flue gas at the same time. By setting the exhaust gas collection device, the pollutants in the flue gas can be prevented from being emitted to the outside of the collection box, so as to avoid pollution to the environment.

In some embodiments, as shown in FIG. 2 , the first fixing device 2 and the second fixing device 3 are sequentially installed on the collection box 1 from top to bottom, and the exhaust gas collection device 8 includes an adsorption plate arranged on the top of the collection box 1 .

In the above embodiment, part of the flue gas is collected into the sampling needle fixed on the first fixing device 2, and the excess flue gas is adsorbed by the adsorption plate arranged on the top of the collection box 1, so as to realize the removal of pollutants in the flue gas. collection and processing. The adsorption material of the adsorption plate can be activated carbon or the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present disclosure can still be Modifications to the disclosed specific implementation methods or equivalent replacement of some technical features shall be covered by the scope of the technical solution claimed in the present disclosure.

Claims (18)

1. A cigarette smoke collection device, comprising:

a collecting box (1) provided with a smoke volatilizing chamber for collecting smoke generated by the burning of cigarettes;

-first fixing means (2) configured to keep the sampling needle required for collecting the fumes fixed with respect to the collection box (1);

-second fixing means (3) configured to keep the lit cigarettes fixed with respect to the collecting box (1); and

the filtering device comprises a particle filter screen (41) arranged in the collecting box (1), wherein the particle filter screen (41) is configured to block particles in the flue gas from entering the sampling needle.

2. A cigarette smoke collecting device according to claim 1, wherein said first fixing means (2) and said second fixing means (3) are mounted on said collecting box (1) in sequence from top to bottom, said particulate filter screen (41) being arranged between the mounting positions of said first fixing means (2) and said second fixing means (3) and dividing said smoke volatilizing chamber into a combustion zone accommodating said lit cigarettes and a sampling zone accommodating the open end of said sampling needle.

3. A cigarette smoke collecting device according to claim 1, wherein said first fixing means (2) comprises first clamping means configured to clamp said sampling needle.

4. A cigarette smoke collecting device according to claim 3, wherein said first holding means comprises a plurality of first holding portions (24), said first fixing means (2) further comprises a first mounting portion (21), said first mounting portion (21) being mounted on said collecting box (1) and being provided with a placement hole (22) for placing said sampling needle, at least one of said first holding portions (24) being movably arranged in a radial direction of said placement hole (22) so that a plurality of said first holding portions (24) can be moved closer to or farther from each other in a radial direction of said placement hole (22).

5. The cigarette smoke collecting device according to claim 4, wherein the first clamping device comprises a first moving block (26) and a spring (27), a chute (28) is arranged on the first mounting portion (21), the first moving block (26) is movably arranged in the chute (28), a first end of the spring (27) is connected to a chute wall of the chute (28), a second end of the spring (27) is connected to the first moving block (26), and the first moving block (26) is connected with the first clamping portion (24) to drive the first clamping portion (24) to move.

6. A cigarette smoke collecting device according to claim 4, wherein said first fixing means (2) further comprises a first elastic ring (23) or a first elastic strip mounted inside said placement hole (22).

7. A cigarette smoke collecting device according to claim 4, wherein the collecting box (1) comprises a box body (11), a knob (12) and a clamping plate (13), the knob (12) being rotatably mounted on the box body (11), the clamping plate (13) being connected to the knob (12), the knob (12) being configured to switch between a first state in which the clamping plate (13) is blocked from a side of the first mounting portion (21) facing the outside of the collecting box (1) and a second state in which the clamping plate (13) is out of contact with the first mounting portion (21).

8. A cigarette smoke collecting device according to claim 1, wherein the second fixing means (3) comprises second clamping means configured to clamp the lit cigarette.

9. A cigarette smoke collecting device according to claim 8, wherein said second clamping means comprises a plurality of second clamping portions (36), a plurality of said second clamping portions (36) being arranged closer to or farther from each other.

10. A cigarette smoke collecting device according to claim 9, wherein the second clamping device comprises a rotating rod (34) and a second moving block (35), the second fixing device (3) further comprises a second mounting part (31), the second mounting part (31) is mounted on the collecting box (1), the rotating rod (34) is mounted on the second mounting part (31), two ends of the rotating rod (34) are provided with a first thread and a second thread with opposite rotation directions, the two second moving blocks (35) are matched with the rotating rod (34) through the first thread and the second thread respectively, and the two second clamping parts (36) are correspondingly connected to the two second moving blocks (35).

11. A cigarette smoke collecting device according to claim 9, wherein said second fixing means (3) further comprises a second elastic strip (37) or a second elastic ring mounted inside said second grip portion (36).

12. A cigarette smoke collecting device according to claim 10, wherein the collecting box (1) comprises a box body (11), a knob (12) and a clamping plate (13), the knob (12) being rotatably mounted on the box body (11), the clamping plate (13) being connected to the knob (12), the knob (12) being configured to switch between a first state in which the clamping plate (13) is blocked from a side of the second mounting portion (31) facing the outside of the collecting box (1) and a second state in which the clamping plate (13) is out of contact with the second mounting portion (31).

13. The cigarette smoke collecting device according to any one of claims 1 to 12, further comprising heating means (5) and/or temperature detecting means (7), the heating means (5) being arranged within the collecting box (1) and configured to heat the gas within the collecting box (1), the temperature detecting means (7) being arranged within the collecting box (1) and configured to detect the temperature of the smoke.

14. The cigarette smoke collecting device according to any one of claims 1 to 12, further comprising a fan (6), said fan (6) being configured to blow air into said collecting box (1) to adjust the flow rate of said smoke.

15. A cigarette smoke collecting device according to claim 14, wherein said collecting box (1) comprises a partition (15), said collecting box (1) further having a fan chamber, said fan (6) being disposed in said fan chamber, said partition (15) being slidably mounted on said collecting box (1) to communicate or separate said smoke volatilizing chamber and said fan chamber.

16. The cigarette smoke collecting device according to claim 14, wherein the filtering device further comprises a dust filter screen (42), the dust filter screen (42) being arranged downstream of the air outlet of the fan (6) and configured to block particulate matter carried in by the fan (6) from outside the collecting box (1).

17. The cigarette smoke collecting device according to any one of claims 1 to 12, further comprising an exhaust gas collecting device (8), said exhaust gas collecting device (8) being arranged within said collecting box (1) and configured to collect excess said smoke.

18. The cigarette smoke collecting device according to claim 17, wherein the first fixing device (2) and the second fixing device (3) are sequentially installed on the collecting box (1) from top to bottom, and the tail gas collecting device (8) comprises an adsorption plate arranged at the inner top of the collecting box (1).

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