Cigarette smoke sample collecting device

By designing the structure of the clamp and absorption bottle, the filter element can be quickly replaced and the absorption bottle can be easily disassembled, solving the problem of inconvenient filter element installation and disassembly in existing devices, and improving the efficiency of flue gas collection and the convenience of analysis.

CN223992734UActive Publication Date: 2026-03-13CHINA TOBACCO JIANGSU INDAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The installation and removal of filter plates in existing cigarette smoke collection devices are inconvenient, resulting in low efficiency of smoke collection operations, which affects the conduct of comparative experiments. Furthermore, the absorption bottle is not easy to disassemble, making subsequent analysis and storage difficult.

Method used

A cigarette smoke sample collection device was designed, which adopts a structure of a clamp, an air pump and an absorption bottle. The clamp is equipped with a replacement port and a filter assembly. The filter can be quickly replaced and the absorption bottle can be easily disassembled. The continuous and efficient collection of smoke is achieved by the filter assembly working alternately.

Benefits of technology

It improves the operational efficiency of flue gas collection, enables rapid replacement of filter elements and convenient disassembly of absorption bottles, ensures the continuity and efficiency of flue gas collection, and facilitates subsequent analysis and storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of smoke collection, and discloses a cigarette smoke sample collection device which comprises a clamp holder, an aspirator pump and an absorption bottle which are communicated in sequence, a replacement opening is formed in the side wall of the clamping device; two groups of filtering assemblies are rotationally mounted on the two sides of the replacing opening in the clamping device and can alternately rotate into the replacing opening; each group of filtering components comprises a supporting ring and a blocking wall fixed on the supporting ring, the supporting ring is used for placing a filter disc, and the blocking wall is matched with the replacement opening in shape and is used for sealing the replacement opening; after the filtering assembly rotates into the replacing opening, the filter disc is located between the collecting hole and the smoke outlet. According to the utility model, the two groups of filter assemblies work alternately, so that the filter discs can be replaced quickly, the continuity of flue gas collection work is ensured, and the practicability and the working efficiency of the device are improved; and the absorption bottle is arranged at the tail end of the device, so that the absorption bottle can be conveniently detached, and the flue gas in the absorption bottle can be conveniently and independently analyzed and stored subsequently.
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Description

Technical Field

[0001] This utility model relates to the field of flue gas collection technology, and in particular to a cigarette smoke sample collection device. Background Technology

[0002] Cigarettes are tobacco products made by rolling tobacco into strips using cigarette paper. They are also known as paper cigarettes, cigarettes, or cigarette rolls. They can be divided into cigarettes with filters and cigarettes without filters, and they also come in mild and strong flavors. To evaluate the quality of cigarettes and additives, cigarette and cigarette additive manufacturers need to collect mainstream cigarette smoke for testing.

[0003] A search revealed a Chinese patent (authorization announcement number CN211317864U) that discloses a device for collecting mainstream smoke, including a clamp, a filter, an absorption bottle, and an atmospheric sampler. The absorption bottle is connected to the clamp for holding cigarettes and the filter via a suction pipe. The atmospheric sampler is connected to the absorption bottle via a suction pipe. This patented technology, by setting up the filter and the absorption bottle, captures the particulate and gaseous phases of mainstream smoke respectively, allowing the mainstream smoke to smoothly enter the atmospheric sampler. At the same time, the clamp is set up to hold the cigarettes and the filter so that the cigarettes and the filter can be placed and removed, thereby satisfying the detection process of mainstream smoke.

[0004] However, the aforementioned device still has some drawbacks in practical use. A significant drawback is that the flue gas collection device uses bolts to install and remove the filter. Since the filter's function is to capture particulate matter in the flue gas for sampling and analysis, and to ensure the accuracy of flue gas sampling, comparative tests of particulate matter are typically conducted, this requires multiple disassembly and reassembly of the filter. However, the bolted method used in the aforementioned device to fix the filter to the clamp makes installation and removal inconvenient, resulting in low operational efficiency in flue gas collection and affecting the conduct of comparative tests. Furthermore, in this design, the absorption bottle is not easily removed from the device, hindering subsequent analysis and storage of the flue gas inside.

[0005] Therefore, there is an urgent need for a cigarette smoke sample collection device to solve the above-mentioned technical problems. Utility Model Content

[0006] Based on the above, the purpose of this utility model is to provide a cigarette smoke sample collection device that can conveniently place and remove filter sheets, realize rapid filter sheet replacement, and effectively improve the operational efficiency of smoke collection.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A cigarette smoke sample collection device, comprising a clamp, an air pump, and an absorption bottle connected in sequence;

[0009] The clamp has a smoke chamber inside, and a collection hole communicating with the smoke chamber is provided at the first end of the clamp. The collection hole is used to insert the cigarette body, and a smoke outlet communicating with the smoke chamber is provided at the second end of the clamp.

[0010] The input end of the suction pump is connected to a first suction pipe, and the output end of the suction pump is connected to a second suction pipe. The first suction pipe is connected to the flue gas outlet, and the second suction pipe is connected to the absorption bottle.

[0011] The clamp has a replacement port on its side wall, which is semi-circular in shape. The opposite side of the replacement port is the inner wall of the clamp. Two sets of filter assemblies are rotatably mounted on both sides of the replacement port on the clamp. The two sets of filter assemblies can rotate alternately into the replacement port. Each set of filter assemblies includes a support ring and a blocking wall fixed to the support ring. The support ring is annular in shape and is used to place filter sheets. The blocking wall is semi-circular in shape and is adapted to the size and shape of the replacement port to close it. The blocking wall is located on the outside of the support ring, and its diameter is larger than that of the support ring. After the filter assembly rotates into the replacement port, the filter sheet is located between the collection hole and the flue gas outlet, and the outer periphery of the filter sheet is in contact with the blocking wall and the inner wall of the clamp, respectively.

[0012] In some possible implementations, a clamping ring is also provided inside the clamp above the replacement port; after the filter assembly is rotated into the replacement port, the clamping ring and the support ring are positioned opposite each other, and the filter is clamped between the clamping ring and the support ring.

[0013] In some possible implementations, a sealing gasket is provided at the barrier wall and / or the replacement port to seal the barrier wall and the replacement port.

[0014] In some possible implementations, the clamping ring is circular in shape.

[0015] In some possible implementations, a connecting sleeve is provided at one end of the absorption bottle connected to the second suction tube, and the connecting sleeve is provided with a first threaded portion; a second threaded portion is provided at one end of the second suction tube connected to the absorption bottle; the first threaded portion and the second threaded portion cooperate to make the second suction tube threadedly connected to the connecting sleeve.

[0016] In some possible implementations, the absorption bottle is further provided with a leak-proof mechanism, which includes a butterfly plate and a drive assembly. The butterfly plate is rotatably mounted inside the connecting sleeve via a rotating shaft, and the drive assembly is fixed to the absorption bottle and located outside the connecting sleeve. The drive assembly is connected to the rotating shaft of the butterfly plate and is used to drive the butterfly plate to rotate.

[0017] In some possible implementations, the drive assembly includes a bracket fixed to the absorption bottle, a worm gear rotatably mounted on the bracket, and a worm wheel meshing with the worm gear; the rotating shaft of the disc extends to the outside of the connecting sleeve and is fixedly connected to the worm wheel.

[0018] In some possible implementations, a collection nozzle is also provided inside the collection hole, and the cigarette body is inserted and fixed inside the collection nozzle.

[0019] In some possible implementations, the sampling nozzle is a magnetic sampling nozzle; or the sampling nozzle is an elastic tube made of elastic material.

[0020] In some possible implementations, the filter is a Cambridge filter; the suction pump is a miniature suction pump.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a cigarette smoke sample collection device. When collecting smoke from within a cigarette, the smoke first enters the smoke chamber through a collection hole, then passes through a filter to capture particulate matter. The smoke then enters the suction pump through the smoke outlet and is transported to the absorption bottle, where the gaseous phase is captured. This utility model facilitates filter installation and removal by placing the filter on a support ring, avoiding the hassle of filter disassembly. The alternating operation of two sets of filter components allows for rapid filter replacement, ensuring continuous smoke collection and avoiding the impact of frequent filter removal on collection efficiency. This utility model improves the device's practicality, enabling more convenient collection and comparison of cigarette smoke, thus increasing work efficiency. Furthermore, by placing the absorption bottle at the end of the device, it is easy to detach from the second suction pipe, facilitating independent analysis and storage of the smoke within the absorption bottle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first angle structure of the cigarette smoke sample collection device provided by this utility model;

[0024] Figure 2 Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 This is a second-angle structural schematic diagram of the cigarette smoke sample collection device provided by this utility model;

[0026] Figure 4 An exploded view of the cigarette smoke sample collection device provided by this utility model (the drive component is not shown, and the clamp is cut open for display).

[0027] Figure 5 This is a schematic diagram of the structure of the clamp and the first suction tube involved in this utility model;

[0028] Figure 6 This is a schematic diagram of the partially cut structure of the clamp involved in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the butterfly plate involved in this utility model.

[0030] In the picture:

[0031] 100. Cigarette body;

[0032] 1. Clamp; 11. Flue gas chamber; 12. Collection port; 13. Replacement port; 14. Clamping ring; 15. Fixing base; 2. Suction pump; 21. First suction pipe; 22. Second suction pipe; 3. Absorption bottle; 31. Connecting sleeve; 32. Butterfly plate; 321. Rotating shaft; 33. Support; 34. Worm gear; 35. Worm wheel; 4. Filter assembly; 41. Support ring; 42. Baffle wall; 43. Filter plate; 44. Sealing gasket; 45. Connecting ear; 5. Collection nozzle. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this utility model, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0037] like Figures 1 to 7As shown, this embodiment provides a cigarette smoke sample collection device, including a clamp 1, an air pump 2, and an absorption bottle 3 connected sequentially from top to bottom. The clamp 1 is hollow inside to serve as a smoke chamber 11; the upper end of the clamp 1 has a collection hole 12 communicating with the smoke chamber 11, and a cigarette body 100 is inserted into the collection hole 12; the lower end of the clamp 1 has a smoke outlet communicating with the smoke chamber 11. The input end of the air pump 2 is connected to a first suction pipe 21, and the output end of the air pump 2 is connected to a second suction pipe 22. The first suction pipe 21 is connected to the smoke outlet, and the second suction pipe 22 is connected to the absorption bottle 3. Optionally, the air pump 2 in this embodiment is a miniature air pump, which is small in size, low in noise, easy to operate, and portable. A replacement port 13 is provided on the side wall of the clamp 1. The replacement port 13 is semi-circular in shape, and the opposite side of the replacement port 13 is the inner wall of the clamp 1. Two sets of filter assemblies 4 are rotatably mounted on both sides of the replacement port 13 on the clamp 1. The two sets of filter assemblies 4 can rotate alternately into the replacement port 13. Each set of filter assemblies 4 includes a support ring 41 and a blocking wall 42 fixed on the support ring 41. The support ring 41 is annular in shape and is used to place filter sheets 43. The blocking wall 42 is semi-circular in shape and is adapted to the size and shape of the replacement port 13 to close the replacement port 13. The blocking wall 42 is located on the outside of the support ring 41, and the diameter of the blocking wall 42 is larger than the diameter of the support ring 41. After the filter assembly 4 rotates into the replacement port 13, the filter sheets 43 are located between the collection hole 12 and the flue gas outlet, and the outer periphery of the filter sheets 43 is in contact with the blocking wall 42 and the inner wall of the clamp 1, respectively. In this embodiment, the filter sheets 43 are used to capture the particulate phase in the flue gas, and the absorption bottle 3 contains an absorbent liquid for capturing the gaseous phase in the flue gas. Optionally, the filter 43 in this embodiment is a Cambridge filter, which can trap particles larger than 0.3 micrometers.

[0038] The cigarette smoke sample collection device provided in this embodiment collects smoke from within the cigarette body 100. The smoke first enters the smoke chamber 11 through the collection hole 12, then passes through the filter 43 to capture particulate matter. Afterward, the smoke enters the suction pump 2 through the smoke outlet and is transported to the absorption bottle 3, where the gas phase portion of the smoke is captured. When the filter 43 needs to be replaced, simply rotate the filter assembly 4 located inside the holder 1 outward and rotate the filter assembly 4 located outside the holder 1 into the holder 1. Then, the operator can directly remove and replace the filter 43 from the rotated-out filter assembly 4. This operation is convenient and quick, ensuring the continuity of smoke collection within the holder 1. Because the size and shape of the blocking wall 42 and the replacement port 13 are matched, the blocking wall 42 can effectively seal the replacement port 13 after the filter assembly 4 is rotated into the holder 1.

[0039] This embodiment uses two sets of filter components 4 to work alternately, avoiding the problem of frequent disassembly of filter 43 during smoke collection, which affects the smoke collection efficiency. This improves the practicality of the device and makes it easier to collect and compare the smoke from the cigarette body 100, thus improving work efficiency. Moreover, by placing the absorption bottle 3 at the end of the device, it is easy to remove the absorption bottle 3 from the second suction pipe 22, which facilitates the independent analysis and storage of the smoke in the absorption bottle 3.

[0040] like Figure 1 and Figure 5 As shown, the clamp 1 in this embodiment can be an integral structure, and the replacement port 13 is an opening that penetrates through the side wall of the clamp 1; to facilitate viewing the internal structure of the clamp 1, Figure 4 and Figure 6 The gripper 1 is cut open for demonstration. (Reference) Figure 6 The clamp 1 has a clamping ring 14 located above the replacement port 13 inside. After the filter assembly 4 rotates into the replacement port 13, the clamping ring 14 and the support ring 41 are positioned opposite each other, and the filter element 43 is clamped between the clamping ring 14 and the support ring 41. This arrangement can limit the position of the filter element 43 by the clamping ring 14 and the support ring 41, preventing the filter element 43 from moving up and down inside the clamp 1. It should be noted that in other embodiments, the clamp 1 can also be divided into upper and lower halves, which are processed separately and then welded together.

[0041] Furthermore, in this embodiment, the clamping ring 14 is circular in shape. Furthermore, to ensure a tight seal between the filter assembly 4 and the replacement port 13, this embodiment also provides a sealing gasket 44 on the top of the barrier wall 42 (see reference). Figure 4 This is to ensure a seal with the replacement port 13. Of course, in other embodiments, a sealing gasket 44 can also be provided at the replacement port 13, or a sealing gasket 44 can be provided at both the barrier wall 42 and the replacement port 13, which can also achieve a seal between the barrier wall 42 and the replacement port 13.

[0042] To enable the filter assembly 4 to rotate relative to the clamp 1, this embodiment also provides two fixed seats 15 on the clamp 1, with the two fixed seats 15 located on both sides of the replacement port 13 respectively; the filter assembly 4 also includes a connecting ear 45, which is fixed to the outside of the barrier wall 42 and located above the fixed seat 15. There is a connecting shaft between the connecting ear 45 and the fixed seat 15, so that the connecting ear 45 can rotate relative to the fixed seat 15, thereby enabling the entire filter assembly 4 to rotate.

[0043] To facilitate the disassembly and reassembly of the absorption bottle 3 and the second suction pipe 22, this embodiment also provides a connecting sleeve 31 at the upper end of the absorption bottle 3. The connecting sleeve 31 has a first threaded portion, and the lower end of the second suction pipe 22 has a second threaded portion. The first threaded portion and the second threaded portion cooperate to thread the second suction pipe 22 and the connecting sleeve 31. Specifically, the first threaded portion is an internal thread located inside the connecting sleeve 31, and the second threaded portion is an external thread located outside the second suction pipe 22. During installation, the connecting sleeve 31 can be directly tightened to the lower end of the second suction pipe 22. This design enables quick installation and disassembly of the absorption bottle 3, thereby facilitating subsequent independent analysis of the flue gas inside the absorption bottle 3.

[0044] Optionally, the absorption bottle 3 is also equipped with a leak-proof mechanism. The leak-proof mechanism specifically includes a butterfly plate 32 and a drive assembly. The butterfly plate 32 is rotatably mounted inside the connecting sleeve 31 via a rotating shaft 321, and the diameter of the butterfly plate 32 is adapted to the inner diameter of the connecting sleeve 31. The drive assembly is fixed to the absorption bottle 3 and located outside the connecting sleeve 31. The drive assembly is connected to the rotating shaft 321 of the butterfly plate 32 and is used to drive the butterfly plate 32 to rotate. When the butterfly plate 32 rotates to a direction perpendicular to the axis of the connecting sleeve 31, the butterfly plate 32 can block the channel inside the connecting sleeve 31, thereby preventing flue gas from entering the absorption bottle 3 and preventing fluid leakage from the absorption bottle 3. When the butterfly plate 32 rotates to a direction parallel to the axis of the connecting sleeve 31, it can completely open the channel inside the connecting sleeve 31, facilitating the entry of flue gas into the absorption bottle 3 or the pouring out of the fluid stored in the absorption bottle 3. Specifically, in this embodiment, the diameter of the connecting sleeve 31 is smaller than the diameter of the absorption bottle 3, and the drive assembly is installed on the top of the bottle body.

[0045] Furthermore, the driving assembly in this embodiment includes two supports 33, a worm gear 34, and a worm wheel 35. The two supports 33 are fixedly spaced at the top of the bottle body. The worm gear 34 is rotatably mounted between the two supports 33. The worm wheel 35 is located above the worm gear 34 and meshes with it. The rotating shaft 321 of the butterfly plate 32 extends to the outside of the connecting sleeve 31 and is fixedly connected to the worm wheel 35. With this configuration, after the absorption bottle 3 has finished collecting the smoke from the cigarette body 100, the rotation of the worm gear 34 drives the worm wheel 35 to rotate, which in turn drives the butterfly plate 32 to rotate. The butterfly plate 32 is used to open and close the channel inside the connecting sleeve 31, thereby preventing the collected smoke from leaking out and facilitating the storage of the smoke. The driving assembly in this embodiment has a simple structure, reliable transmission, and good stability.

[0046] In this embodiment, the top of the clamp 1 has a collection hole 12. For a large-diameter, coarse cigarette body 100, it can be directly inserted into the collection hole 12 for fixation. Furthermore, for a small-diameter, fine cigarette body 100, this embodiment also provides a collection nozzle 5, which is installed inside the collection hole 12. The collection nozzle 5 is used to insert and fix the small-diameter, fine cigarette body 100, thus enabling the collection device to collect smoke samples from cigarette bodies 100 of different sizes, improving the applicability of the collection device. Specifically, the collection nozzle 5 can be a magnetic collection nozzle, fixed inside the collection hole 12 by magnetic attraction; or the collection nozzle 5 can also be an elastic tube made of elastic material, fixed inside the collection hole 12 by interference fit, and the elastic tube can also achieve a seal between the cigarette body 100 and the collection hole 12.

[0047] The working principle of the cigarette smoke sample collection device provided in this embodiment is as follows:

[0048] First, place the filter 43 on the support ring 41 and push the filter assembly 4 into the replacement port 13 of the holder 1 so that the blocking wall 42 fits into the replacement port 13; then, tighten the connecting sleeve 31 on the absorption bottle 3 with the second suction tube 22; then, insert the cigarette body 100 to be tested into the collection hole 12. For the thin cigarette body 100, the collection nozzle 5 can be inserted into the collection hole 12 first, and then the small-diameter thin cigarette body 100 can be inserted into the collection nozzle 5.

[0049] After the preliminary preparations are completed, turn on the button switch on the suction pump 2 and set the flow rate and time for each suction. As the suction pump 2 operates, the flue gas is drawn into the holder 1, where the filter 43 captures particulate matter. The flue gas is then pumped into the absorption bottle 3. After the specified sampling time, the worm gear 34 is rotated to drive the worm wheel 35, thereby using the butterfly plate 32 to close the channel inside the connecting sleeve 31 for flue gas storage. Finally, the collected filter 43 can be removed, and the filter 43 without collected particles can be placed on the support ring 41 of another filter assembly 4 to continue collecting flue gas. This collection device, through the alternating operation of the two filter assemblies 4, avoids the problem of frequent disassembly of the filter 43 during flue gas collection. Furthermore, the replacement of the filter 43 is quick and easy, avoiding tedious disassembly and assembly operations. After collection, the absorption bottle 3 can be unscrewed from the device for subsequent independent study and analysis of the flue gas.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for collecting a sample of cigarette smoke, characterized in that, The utility model relates to a filter device for cigarette smoke, comprising: a clamping device (1), a suction pump (2) and an absorption bottle (3) connected in sequence; the clamping device (1) is internally provided with a flue gas cavity (11), the first end of the clamping device (1) is provided with a collection hole (12) penetrating through the flue gas cavity (11), the collection hole (12) is used for inserting a cigarette body (100), the second end of the clamping device (1) is provided with a flue gas outlet penetrating through the flue gas cavity (11); the input end of the suction pump (2) is connected with a first suction pipeline (21), the output end of the suction pump (2) is connected with a second suction pipeline (22), the first suction pipeline (21) is connected with the flue gas outlet, and the second suction pipeline (22) is connected with the absorption bottle (3); the side wall of the clamping device (1) is provided with a replacement opening (13), the replacement opening (13) is semicircular in shape, and the opposite side of the replacement opening (13) is the inner wall of the clamping device (1); two groups of filter assemblies (4) are rotatably installed on the clamping device (1) on the two sides of the replacement opening (13), and the two groups of filter assemblies (4) can be alternately rotated into the replacement opening (13); each group of filter assemblies (4) comprises a supporting ring (41) and a blocking wall (42) fixed on the supporting ring (41), the supporting ring (41) is annular in shape, the supporting ring (41) is used for placing a filter disc (43), the blocking wall (42) is semicircular in shape, the size and shape of the blocking wall (42) are matched with those of the replacement opening (13), and the blocking wall (42) is used for closing the replacement opening (13); the blocking wall (42) is arranged outside the supporting ring (41), and the diameter of the blocking wall (42) is greater than that of the supporting ring (41); after the filter assembly (4) is rotated into the replacement opening (13), the filter disc (43) is located between the collection hole (12) and the flue gas outlet, and the outer circumferential sides of the filter disc (43) are respectively attached to the blocking wall (42) and the inner wall of the clamping device (1).

2. The cigarette smoke sample collection device of claim 1, wherein, The inside of the clamping device (1) is further provided with a clamping ring (14) on the upper side of the replacement opening (13); after the filter assembly (4) is rotated into the replacement opening (13), the clamping ring (14) is opposite to the supporting ring (41), and the filter disc (43) is clamped between the clamping ring (14) and the supporting ring (41).

3. The cigarette smoke sample collection device of claim 1, wherein, A sealing gasket (44) is arranged at the blocking wall (42) and / or the replacement opening (13) and is used for sealing the blocking wall (42) and the replacement opening (13).

4. The cigarette smoke sample collection device of claim 2, wherein, The clamping ring (14) is annular in shape.

5. The cigarette smoke sample collection device of claim 1, wherein, The end, where the absorption bottle (3) is connected with the second suction pipeline (22), is provided with a connecting sleeve (31), and the connecting sleeve (31) is provided with a first threaded portion; the end, where the second suction pipeline (22) is connected with the absorption bottle (3), is provided with a second threaded portion; the first threaded portion is matched with the second threaded portion, so as to threadedly connect the second suction pipeline (22) with the connecting sleeve (31).

6. The cigarette smoke sample collection device of claim 5, wherein, The absorption bottle (3) is further provided with a leakage prevention mechanism, which comprises a butterfly plate (32) and a driving assembly. The butterfly plate (32) is rotatably installed in the inside of the connecting sleeve (31) through a rotating shaft (321). The driving assembly is fixed on the absorption bottle (3) and located outside the connecting sleeve (31). The driving assembly is connected with the rotating shaft (321) of the butterfly plate (32) and used for driving the butterfly plate (32) to rotate.

7. The cigarette smoke sample collection device of claim 6, wherein, The driving assembly comprises a support (33) fixed on the absorption bottle (3), a worm (34) rotatably installed on the support (33), and a worm wheel (35) meshingly connected with the worm (34). The rotating shaft (321) of the butterfly plate (32) extends to the outside of the connecting sleeve (31) and is fixedly connected with the worm wheel (35).

8. The cigarette smoke sample collection device of claim 1, wherein, The collecting hole (12) is further provided with a collecting nozzle (5), and the cigarette body (100) is inserted and fixed in the collecting nozzle (5).

9. The cigarette smoke sample collection device of claim 8, wherein, The collecting nozzle (5) is a magnetic collecting nozzle, or the collecting nozzle (5) is an elastic tube made of elastic material.

10. The cigarette smoke sample collection device of claim 1, wherein, The filter (43) is a Cambridge filter, and the air suction pump (2) is a micro air suction pump.

Citation Information

Patent Citations

  • Device for collecting mainstream smoke

    CN211317864U