Mahjong machine with cigarette smoke purification function

By installing a purification unit inside the column of the mahjong machine, the problem of traditional mahjong machines being unable to purify cigarette smoke is solved, achieving flexible adjustment and efficient air purification, thus improving user experience and space utilization.

CN224141445UActive Publication Date: 2026-04-21SHENZHEN SHENRUI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SHENRUI IND CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional mahjong machines cannot directly purify cigarette smoke, requiring external air purification equipment that takes up space and cannot be flexibly repositioned.

Method used

A purification unit, including a fan and a filter module, is installed inside the column of the mahjong machine. It absorbs smoke through the air extraction pipe and purifies it internally. The position of the purification unit can be flexibly adjusted.

Benefits of technology

It provides a good air environment, reduces the difficulty of operation, improves space utilization, enhances the purification effect, and avoids affecting users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mahjong machine with a cigarette smoke purification function, and relates to the technical field of mahjong machines, the mahjong machine with the cigarette smoke purification function comprises a table body part, a column body part and a purification unit, the column body part is connected with the bottom of the table body part, and the column body part is used for supporting the table body part; the purification unit comprises a fan, a filtering module and at least one air exhaust pipeline, the interior of the column body part is hollow and is divided into a first space part, a second space part and a third space part, and the first space part, the second space part and the third space part are communicated; the second space part is located between the first space part and the third space part; the fan is located in the third space part, the filtering module is arranged in the second space part, one end of the air exhaust pipeline is communicated with the first space part, and the other end of the air exhaust pipeline is used for sucking smoke to be filtered. Through the design, air purification is achieved.
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Description

Technical Field

[0001] This application relates to the field of mahjong machine technology, and in particular to a mahjong machine with a cigarette smoke purification function. Background Technology

[0002] As people's living standards improve, mahjong, as a traditional form of entertainment, remains widely popular. However, smoking around mahjong tables is quite common, which not only harms the smoker's own health but also causes secondhand smoke pollution for non-smokers nearby.

[0003] Traditional mahjong machines cannot purify the air directly and require external air purification equipment. However, external air purification equipment takes up space and cannot be flexibly adjusted in position. Utility Model Content

[0004] The purpose of this application is to provide a mahjong machine with a cigarette smoke purification function, thereby purifying the air.

[0005] This application discloses a mahjong machine with cigarette smoke purification function. The mahjong machine with cigarette smoke purification function includes a table body, a column body, and a purification unit. The column body is connected to the bottom of the table body and is used to support the table body.

[0006] The purification unit includes a fan, a filter module, and at least one exhaust pipe. The column is hollow inside and divided into a first space, a second space, and a third space. The first space, the second space, and the third space are connected. The second space is located between the first space and the third space. The fan is located in the third space. The filter module is located in the second space. One end of the exhaust pipe is connected to the first space, and the other end is used to draw in the flue gas to be filtered.

[0007] Optionally, the purification unit includes four exhaust pipes, which are respectively defined as the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe; the side wall of the column is provided with four through air duct interfaces; the first exhaust pipe, the second exhaust pipe, the third exhaust pipe and the fourth exhaust pipe are respectively connected to the four air duct interfaces;

[0008] Furthermore, the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, and the fourth exhaust pipe are located at the four corners of the table body.

[0009] Optionally, the air extraction pipe includes a horizontal pipe, a vertical pipe, and an air extraction nozzle. One end of the horizontal pipe is connected to the first space, one end of the vertical pipe is connected to the other end of the horizontal pipe, and the other end of the vertical pipe is connected to the air extraction nozzle. The length of the horizontal pipe is extendable, and the length of the vertical pipe is extendable.

[0010] Optionally, the longitudinal tube includes a first sub-longitudinal tube and a second sub-longitudinal tube. One end of the first sub-longitudinal tube is connected to the end of the transverse tube away from the column portion. The other end of the first sub-longitudinal tube is connected to the second sub-longitudinal tube. The end of the second sub-longitudinal tube away from the first sub-longitudinal tube is connected to the air extraction nozzle. The second sub-longitudinal tube is sleeved on the first sub-longitudinal tube and can slide relative to the outer wall of the first sub-longitudinal tube.

[0011] Optionally, the transverse tube includes a first sub-transverse tube and a second sub-transverse tube. One end of the first sub-transverse tube is connected to the airway interface, and the other end of the first sub-transverse tube is connected to the second sub-transverse tube. The end of the second sub-transverse tube away from the first sub-transverse tube is connected to the first sub-longitudinal tube. The first sub-transverse tube is sleeved on the second sub-transverse tube, and the second sub-transverse tube can slide relative to the inner wall of the first sub-transverse tube.

[0012] Optionally, the suction nozzle is hemispherical in shape.

[0013] Optionally, the exhaust pipe further includes a first L-shaped connector and a second L-shaped connector. The two ends of the first L-shaped connector are respectively connected to the second sub-horizontal pipe and the first sub-longitudinal pipe, and the first L-shaped connector can rotate relative to the pipe axis of the second sub-horizontal pipe.

[0014] The two ends of the second L-shaped connector are respectively connected to the second sub-longitudinal pipe and the air extraction nozzle, and the second L-shaped connector can rotate relative to the pipe axis of the second sub-longitudinal pipe.

[0015] Optionally, the filtration module includes a pre-filter plate, an electronic dust collection unit, and a gas filter screen. The pre-filter plate is located on the side of the electronic dust collection unit closer to the first space, and the gas filter screen is located on the side of the electronic dust collection unit closer to the third space.

[0016] Optionally, the cylindrical part is octagonal in shape, and the cylindrical part includes a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side, and an eighth side connected in sequence, and the airway interface is respectively disposed on the first side, the third side, the fifth side, and the seventh side;

[0017] The first sub-horizontal pipe of the first air extraction pipe, the first sub-horizontal pipe of the second air extraction pipe, the first sub-horizontal pipe of the third air extraction pipe and the first sub-horizontal pipe of the fourth air extraction pipe are all slidably connected to the air passage interface;

[0018] The first sub-lateral pipe of the first suction pipe and the first sub-lateral pipe of the third suction pipe are respectively connected to the air passage interface on the opposite first side and the fifth side, and the first sub-lateral pipe of the second suction pipe and the first sub-lateral pipe of the fourth suction pipe are respectively connected to the air passage interface on the opposite third side and the seventh side.

[0019] The first sub-horizontal pipe of the first extraction pipe and the first sub-horizontal pipe of the third extraction pipe are staggered, and the first sub-horizontal pipe of the second extraction pipe and the first sub-horizontal pipe of the fourth extraction pipe are staggered.

[0020] Compared to current mahjong machines, this application provides a better air environment for users by purifying the surrounding air directly through a purification unit. Furthermore, this application directly integrates the fan and filter module of the purification unit into the column body, using an air extraction pipe to absorb the smoke to be filtered from the air, allowing the purification unit to flexibly adjust its position along with the table body. Attached Figure Description

[0021] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of a mahjong machine with cigarette smoke purification function according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of a columnar portion according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of an air outlet according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of an air extraction pipe according to an embodiment of this application;

[0026] Figure 5 This is a cross-sectional schematic diagram of a column portion according to an embodiment of this application.

[0027] Among them, 10. Mahjong machine with cigarette smoke purification function; 20. Table body; 100. Column body; 111. First space; 112. Second space; 113. Third space; 121. First side; 122. Second side; 123. Third side; 124. Fourth side; 125. Fifth side; 126. Sixth side; 127. Seventh side; 128. Eighth side; 200. Purification unit; 300. Fan; 400. Filter module; 410. Pre-filter plate; 420. Electric... Sub-dust collection unit; 430, gas filter; 500, exhaust pipe; 510, horizontal pipe; 511, first sub-horizontal pipe; 512, second sub-horizontal pipe; 520, vertical pipe; 521, first sub-vertical pipe; 522, second sub-vertical pipe; 530, exhaust nozzle; 541, first L-shaped connector; 542, second L-shaped connector; 551, first exhaust pipe; 552, second exhaust pipe; 553, third exhaust pipe; 554, fourth exhaust pipe; 600, air duct interface; 700, air outlet. Detailed Implementation

[0028] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0030] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate 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 application.

[0031] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0033] Figure 1 This is a schematic diagram of a mahjong machine with a cigarette smoke purification function according to an embodiment of this application. Figure 2 This is a schematic diagram of a columnar portion according to an embodiment of this application. Figure 3 This is a schematic diagram of an air outlet according to an embodiment of this application, combined with... Figures 1-3 As shown, this application discloses a mahjong machine 10 with a cigarette smoke purification function. The mahjong machine 10 with a cigarette smoke purification function includes a table body 20, a column body 100 and a purification unit 200. The column body 100 is connected to the bottom of the table body 20 and is used to support the table body 20. The table body 20 is used to place mahjong tiles.

[0034] The purification unit 200 includes a fan 300, a filter module 400, and at least one exhaust pipe 500. The column part 100 is hollow inside and is divided into a first space part 111, a second space part 112, and a third space part 113. The first space part 111, the second space part 112, and the third space part 113 are connected. The second space part 112 is located between the first space part 111 and the third space part 113. The fan 300 is located in the third space part 113. The filter module 400 is disposed in the second space part 112. One end of the exhaust pipe 500 is connected to the first space part 111, and the other end is used to draw in the flue gas to be filtered.

[0035] After the fan 300 is turned on, the user's flue gas will be absorbed by the exhaust pipe 500, then pass through the first space 111, enter the second space 112, be filtered by the filter module 400, reach the third space 113, and finally be discharged by the fan 300.

[0036] Compared to current mahjong machines, this application provides a better air environment for users by directly purifying the surrounding air through the purification unit 200. Furthermore, this application directly sets the fan 300 and filter module 400 of the purification unit 200 inside the column part 100, and absorbs the smoke to be filtered in the air through the air extraction pipe 500, so that the purification unit 200 can flexibly adjust its position along with the table part 20.

[0037] Furthermore, this application directly integrates the filter module 400, which occupies a large area in the purification unit 200, into the column part 100 of the mahjong machine. This eliminates the need for additional air purification equipment, thus improving space utilization. Moreover, when the filter module 400 needs to be replaced, only one part needs to be replaced, reducing operational difficulty and improving replacement efficiency.

[0038] The filtration module 400 includes a pre-filter plate 410, an electronic dust collection unit 420, and a gas filter 430. The pre-filter plate 410 is located on the side of the electronic dust collection unit 420 near the first space portion 111, and the gas filter 430 is located on the side of the electronic dust collection unit 420 near the third space portion 113.

[0039] The pre-filter plate 410 can be used to filter large particles such as hair and dust in the air, the electronic dust collection unit 420 can be used to absorb bacteria and fine dust particles, and the gas filter 430 can be used to adsorb harmful gases such as benzene and chloroform.

[0040] For example, the bottom of the column part 100 is provided with an air outlet 700. After the fan 300 is turned on, the air drawn in passes through the pre-filter plate 410, the electronic dust collection unit 420 and the gas filter screen 430 to reach the third space part 113, and is discharged from the air outlet 700 by the fan 300.

[0041] For example, this application provides four exhaust pipes 500, specifically as follows: the purification unit 200 includes four exhaust pipes 500, that is, the number of exhaust pipes 500 is four, respectively defined as the first exhaust pipe 551, the second exhaust pipe 552, the third exhaust pipe 553 and the fourth exhaust pipe 554; the side wall of the column part 100 is provided with four through air duct interfaces 600; the first exhaust pipe 551, the second exhaust pipe 552, the third exhaust pipe 553 and the fourth exhaust pipe 554 are respectively connected to the four air duct interfaces 600; and the first exhaust pipe 551, the second exhaust pipe 552, the third exhaust pipe 553 and the fourth exhaust pipe 554 are respectively located at the four corners of the table part 20.

[0042] Mahjong is typically played by four people. Therefore, this application provides four exhaust pipes 500, with the first exhaust pipe 551, the second exhaust pipe 552, the third exhaust pipe 553, and the fourth exhaust pipe 554 located at the four corners of the table body 20. This allows for the filtration of polluted air when four people are smoking simultaneously, thereby improving air purification. Furthermore, the corner locations prevent disruption to users.

[0043] Figure 4 This is a schematic diagram of an air extraction pipe according to an embodiment of this application, as shown below. Figure 4 As shown, the exhaust pipe 500 described in this application is telescopic, that is, the exhaust pipe 500 includes a horizontal pipe 510, a vertical pipe 520 and an exhaust nozzle 530. One end of the horizontal pipe 510 is connected to the first space portion 111, one end of the vertical pipe 520 is connected to the other end of the horizontal pipe 510, and the other end of the vertical pipe 520 is connected to the exhaust nozzle 530; the length of the horizontal pipe 510 is telescopic, and the length of the vertical pipe 520 is telescopic.

[0044] This way, when not in use, the horizontal tube 510 can be shortened to its shortest length and the vertical tube 520 can be shortened to its shortest length for storage, avoiding taking up too much space.

[0045] For example, the longitudinal tube 520 includes a first sub-longitudinal tube 521 and a second sub-longitudinal tube 522. One end of the first sub-longitudinal tube 521 is connected to the end of the transverse tube 510 away from the column portion 100. The other end of the first sub-longitudinal tube 521 is connected to the second sub-longitudinal tube 522. The end of the second sub-longitudinal tube 522 away from the first sub-longitudinal tube 521 is connected to the air extraction nozzle 530. The second sub-longitudinal tube 522 is sleeved on the first sub-longitudinal tube 521, and the second sub-longitudinal tube 522 can slide relative to the outer wall of the first sub-longitudinal tube 521.

[0046] The second sub-longitudinal tube 522 can slide relative to the outer wall of the first sub-longitudinal tube 521. When stored, the second sub-longitudinal tube 522 is completely fitted onto the first sub-longitudinal tube 521, thereby reducing the length of the longitudinal tube 520. Moreover, this shrinkage method can ensure that the longitudinal tube 520 has sufficient strength and prevent deformation of the longitudinal tube 520.

[0047] For example, the transverse tube 510 includes a first sub-transverse tube 511 and a second sub-transverse tube 512. One end of the first sub-transverse tube 511 is connected to the airway interface 600, and the other end of the first sub-transverse tube 511 is connected to the second sub-transverse tube 512. One end of the second sub-transverse tube 512 away from the first sub-transverse tube 511 is connected to the first sub-longitudinal tube 521. The first sub-transverse tube 511 is sleeved on the second sub-transverse tube 512, and the second sub-transverse tube 512 can slide relative to the inner wall of the first sub-transverse tube 511.

[0048] The second sub-transverse tube 512 can slide relative to the inner wall of the first sub-transverse tube 511. When stored, the first sub-transverse tube 511 is completely fitted onto the second sub-transverse tube 512, thereby reducing the length of the transverse tube 510. Moreover, this shrinkage method can also ensure that the longitudinal tube 520 has sufficient strength and prevent the transverse tube 510 from deforming.

[0049] The air extraction nozzle 530 is hemispherical in shape. This allows the air extraction nozzle 530 to draw in air from a wider range, further improving the air purification efficiency of the mahjong machine 10 with cigarette smoke purification function.

[0050] Furthermore, for ease of storage, the suction nozzle 530 can rotate relative to the longitudinal tube 520, and the longitudinal tube 520 can rotate relative to the transverse tube 510, as detailed below:

[0051] The air extraction pipe 500 also includes a first L-shaped connector 541 and a second L-shaped connector 542. The two ends of the first L-shaped connector 541 are respectively connected to the second sub-horizontal pipe 512 and the first sub-longitudinal pipe 521, and the first L-shaped connector 541 can rotate relative to the pipe axis of the second sub-horizontal pipe 512.

[0052] The two ends of the second L-shaped connector 542 are respectively connected to the second sub-longitudinal pipe 522 and the air extraction nozzle 530, and the second L-shaped connector 542 can rotate relative to the pipe axis of the second sub-longitudinal pipe 522.

[0053] In simple terms, the rotation of the first L-shaped connector 541 relative to the pipe axis of the second sub-horizontal pipe 512 causes the longitudinal pipe 520 to rotate, so that the longitudinal pipe 520 and the plane of the table body 20 remain horizontal or vertical; the rotation of the second L-shaped connector 542 relative to the pipe axis of the second sub-longitudinal pipe 522 causes the air extraction nozzle 530 to rotate horizontally to adjust the direction of use.

[0054] When the user wants to use the air, they should adjust the angle and length of the horizontal pipe 510 and the vertical pipe 520, as well as the angle of the exhaust nozzle 530, to a suitable position, and start the fan 300. External air enters the first space 111 through the exhaust nozzle 530, the vertical pipe 520, and the horizontal pipe 510. The air is then purified by passing through the pre-filter plate 410, the electronic dust collection unit 420, and the gas filter 430. The purified air enters the third space 113 and is discharged from the air outlet 700 by the fan 300.

[0055] Figure 5 This is a cross-sectional schematic diagram of a columnar portion according to an embodiment of this application, as shown below. Figure 5 As shown, the cylindrical part 100 is octagonal in shape. The cylindrical part 100 includes a first side 121, a second side 122, a third side 123, a fourth side 124, a fifth side 125, a sixth side 126, a seventh side 127, and an eighth side 128 connected in sequence. The airway interface 600 is respectively disposed on the first side 121, the third side 123, the fifth side 125, and the seventh side 127.

[0056] The first sub-horizontal pipe 511 of the first air extraction pipe 551, the first sub-horizontal pipe 511 of the second air extraction pipe 552, the first sub-horizontal pipe 511 of the third air extraction pipe 553, and the first sub-horizontal pipe 511 of the fourth air extraction pipe 554 are all slidably connected to the airway interface 600.

[0057] The first sub-lateral pipe 511 of the first suction pipe 551 and the first sub-lateral pipe 511 of the third suction pipe 553 are respectively connected to the airway interface 600 on the opposite first side 121 and the fifth side 125. The first sub-lateral pipe 511 of the second suction pipe 552 and the first sub-lateral pipe 511 of the fourth suction pipe 554 are respectively connected to the airway interface 600 on the opposite third side 123 and the seventh side 127.

[0058] The first sub-horizontal pipe 511 of the first extraction pipe 551 and the first sub-horizontal pipe 511 of the third extraction pipe 553 are staggered, and the first sub-horizontal pipe 511 of the second extraction pipe 552 and the first sub-horizontal pipe 511 of the fourth extraction pipe 554 are staggered.

[0059] In other words, the extension line of the first sub-horizontal pipe 511 of the first exhaust pipe 551 and the extension line of the first sub-horizontal pipe 511 of the third exhaust pipe 553 are not on the same straight line, and the extension line of the first sub-horizontal pipe 511 of the second exhaust pipe 552 and the extension line of the first sub-horizontal pipe 511 of the fourth exhaust pipe 554 are not on the same straight line.

[0060] Furthermore, the first sub-horizontal pipe 511 of the first extraction pipe 551, the first sub-horizontal pipe 511 of the second extraction pipe 552, the first sub-horizontal pipe 511 of the third extraction pipe 553, and the first sub-horizontal pipe 511 of the fourth extraction pipe 554 are not on the same horizontal plane.

[0061] In this way, when not in use, the first sub-horizontal tube 511 and the second sub-horizontal tube 512 can be stored in the first space 111. Moreover, the first sub-horizontal tube 511 of the first exhaust pipe 551, the first sub-horizontal tube 511 of the second exhaust pipe 552, the first sub-horizontal tube 511 of the third exhaust pipe 553, and the first sub-horizontal tube 511 of the fourth exhaust pipe 554 will not abut against each other in the first space 111, thus avoiding the situation where they cannot be moved into the first space 111.

[0062] Furthermore, the second sub-horizontal tube 512 can slide relative to the inner wall of the first sub-horizontal tube 511. When stored, the first sub-horizontal tube 511 is completely fitted onto the second sub-horizontal tube 512, thereby ensuring that the first sub-horizontal tube 51 can slide into the first space portion 111.

[0063] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0064] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A mahjong machine with a cigarette smoke purification function, characterized in that, The mahjong machine with cigarette smoke purification function includes a table body, a column body, and a purification unit. The column body is connected to the bottom of the table body and is used to support the table body. The purification unit includes a fan, a filter module, and at least one exhaust pipe. The column is hollow inside and divided into a first space, a second space, and a third space. The first space, the second space, and the third space are connected. The second space is located between the first space and the third space. The fan is located in the third space. The filter module is located in the second space. One end of the exhaust pipe is connected to the first space, and the other end is used to draw in the flue gas to be filtered.

2. The mahjong machine with cigarette smoke purification function according to claim 1, characterized in that, The purification unit includes four exhaust pipes, which are defined as the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, and the fourth exhaust pipe, respectively; the side wall of the column is provided with four through air duct interfaces; the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, and the fourth exhaust pipe are respectively connected to the four air duct interfaces; Furthermore, the first, second, third, and fourth exhaust pipes are located at the four corners of the table body.

3. The mahjong machine with cigarette smoke purification function according to claim 2, characterized in that, The air extraction pipe includes a horizontal pipe, a vertical pipe, and an air extraction nozzle. One end of the horizontal pipe is connected to the first space, one end of the vertical pipe is connected to the other end of the horizontal pipe, and the other end of the vertical pipe is connected to the air extraction nozzle. The length of the horizontal pipe is extendable, and the length of the vertical pipe is extendable.

4. The mahjong machine with cigarette smoke purification function according to claim 3, characterized in that, The longitudinal tube includes a first sub-longitudinal tube and a second sub-longitudinal tube. One end of the first sub-longitudinal tube is connected to the end of the transverse tube away from the column portion. The other end of the first sub-longitudinal tube is connected to the second sub-longitudinal tube. The end of the second sub-longitudinal tube away from the first sub-longitudinal tube is connected to the air extraction nozzle. The second sub-longitudinal tube is sleeved on the first sub-longitudinal tube and can slide relative to the outer wall of the first sub-longitudinal tube.

5. The mahjong machine with cigarette smoke purification function according to claim 4, characterized in that, The transverse tube includes a first sub-transverse tube and a second sub-transverse tube. One end of the first sub-transverse tube is connected to the airway interface, and the other end of the first sub-transverse tube is connected to the second sub-transverse tube. The end of the second sub-transverse tube away from the first sub-transverse tube is connected to the first sub-longitudinal tube. The first sub-transverse tube is sleeved on the second sub-transverse tube, and the second sub-transverse tube can slide relative to the inner wall of the first sub-transverse tube.

6. The mahjong machine with cigarette smoke purification function according to claim 5, characterized in that, The air extraction nozzle is hemispherical in shape.

7. The mahjong machine with cigarette smoke purification function according to claim 5, characterized in that, The air extraction pipe also includes a first L-shaped connector and a second L-shaped connector. The two ends of the first L-shaped connector are respectively connected to the second sub-horizontal pipe and the first sub-longitudinal pipe, and the first L-shaped connector can rotate relative to the pipe axis of the second sub-horizontal pipe. The two ends of the second L-shaped connector are respectively connected to the second sub-longitudinal pipe and the air extraction nozzle, and the second L-shaped connector can rotate relative to the pipe axis of the second sub-longitudinal pipe.

8. The mahjong machine with cigarette smoke purification function according to claim 1, characterized in that, The filtration module includes a pre-filter plate, an electronic dust collection unit, and a gas filter. The pre-filter plate is located on the side of the electronic dust collection unit closer to the first space, and the gas filter is located on the side of the electronic dust collection unit closer to the third space.

9. The mahjong machine with cigarette smoke purification function according to claim 5, characterized in that, The cylindrical part is octagonal in shape and includes a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side, and an eighth side connected in sequence. The airway inlets are respectively disposed on the first side, the third side, the fifth side, and the seventh side. The first sub-horizontal pipe of the first air extraction pipe, the first sub-horizontal pipe of the second air extraction pipe, the first sub-horizontal pipe of the third air extraction pipe and the first sub-horizontal pipe of the fourth air extraction pipe are all slidably connected to the air passage interface; The first sub-lateral pipe of the first suction pipe and the first sub-lateral pipe of the third suction pipe are respectively connected to the air passage interface on the opposite first side and the fifth side, and the first sub-lateral pipe of the second suction pipe and the first sub-lateral pipe of the fourth suction pipe are respectively connected to the air passage interface on the opposite third side and the seventh side. The first sub-horizontal pipe of the first extraction pipe and the first sub-horizontal pipe of the third extraction pipe are staggered, and the first sub-horizontal pipe of the second extraction pipe and the first sub-horizontal pipe of the fourth extraction pipe are staggered.