Smoking experiment device

Abstract

The utility model relates to a smoking experiment device, and belongs to the technical field of mouse smoking experiment equipment. The device comprises a smudging box and a purifier, wherein the smudging box comprises a box body; a smoke generating chamber, a smoke inlet channel, a smoke exhaust channel and a plurality of experiment cabins are arranged in the box body; a partition plate, a flue gas mixing cavity and a flue gas diffusion cavity are arranged in the flue gas inlet channel; a flue gas mixing fan is arranged in the flue gas mixing cavity; the smoke generating chamber is communicated with the smoke mixing cavity, each experiment bin is provided with a smoke inlet hole and a smoke exhaust hole, the smoke inlet hole is communicated with the smoke diffusion cavity, the smoke exhaust hole is communicated with the smoke exhaust channel, and the smoke exhaust channel is communicated with the purifier; a smoke inlet adjusting valve and a smoke outlet adjusting valve are arranged in the smoke inlet hole and the smoke outlet hole respectively. The smoke concentration in a single experiment bin is adjusted, so that the smoking experiment device can be used for smoking experiments with different smoke concentrations at the same time, and the experiment efficiency is improved; meanwhile, the experiment conditions except the smoke concentration in the experiment process can be kept consistent, and the experiment precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mouse fumigation experiment equipment, in particular to a fumigation experiment device. Background Art

[0002] Existing mouse fumigation experiments, such as the mouse cigarette fumigation model and the moxibustion fumigation model, require placing the mouse in a closed chamber / box, lighting a corresponding number of cigarettes / moxibustions, and using the smoke from the ignition to fumigate the mouse to construct the model.

[0003] In the existing smoke experiment device, mice are directly placed in it, and cigarettes / moxibustion and other smoke are lit to carry out induction experiments; in the existing smoke experiment device, the experimental space inside the smoke experiment device is divided into multiple connected experimental chambers by setting partitions for experiments, and multiple experimental chambers can smoke multiple groups of mice at the same time; when a control experiment with different smoke concentrations is required, the concentration in the experimental chamber in the smoke experiment device needs to be readjusted, and then the experiment is carried out again, thereby completing the control experiment with different smoke concentrations; since the control group and the experimental group are not subjected to experiments synchronously, the experimental process is complicated and the experimental efficiency is low; at the same time, since the control group and the experimental group are not subjected to experiments synchronously, the experimental conditions of the control group and the experimental group cannot be kept consistent, resulting in the defect of low experimental accuracy; in addition, the existing smoke chamber only constructs an induction model by adding high-concentration smoke in a closed environment, ignoring the reduction of oxygen concentration caused by excessively high smoke concentration, causing other physiological dysfunctions of mice caused by suffocation, adding additional induction factors, and failing to truly reflect the experimental indicators under the smoke model. Utility Model Content

[0004] In view of the above analysis, the utility model aims to provide a smoke experiment device to solve at least one problem of low experimental accuracy, complex experimental process and low experimental efficiency in the prior art when conducting smoke experiments of different concentrations.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions:

[0006] A fumigation experiment device comprises a fumigation box and a purifier, wherein the purifier is used for purifying the waste gas generated during the fumigation experiment; the fumigation box comprises a box door and a box body; a smoke production chamber, a smoke inlet channel, a smoke exhaust channel and a plurality of experimental chambers capable of independently adjusting the smoke concentration are arranged in the box body; a partition is arranged in the smoke inlet channel, and the partition divides the smoke inlet channel into a smoke mixing chamber and a smoke diffusion chamber; a smoke mixing fan is arranged in the smoke mixing chamber; the smoke production chamber is connected with the smoke mixing chamber; a smoke inlet hole and a smoke exhaust hole are arranged on each of the experimental chambers, the smoke inlet hole is connected with the smoke diffusion chamber, the smoke exhaust hole is connected with the smoke exhaust channel, and the smoke exhaust channel is connected with the purifier; a smoke inlet regulating valve and a smoke exhaust regulating valve are arranged in the smoke inlet hole and the smoke exhaust hole respectively, the smoke inlet regulating valve is used for controlling the opening and closing of the smoke inlet hole and adjusting the opening degree of the smoke inlet hole, and the smoke exhaust regulating valve is used for controlling the opening and closing of the smoke exhaust hole and adjusting the opening degree of the smoke exhaust hole.

[0007] Furthermore, the multiple experimental chambers include a first experimental chamber, a second experimental chamber and a third experimental chamber arranged in sequence from bottom to top; the diameter of the smoke inlet hole on the first experimental chamber is greater than the diameter of the smoke inlet hole on the second experimental chamber; the diameter of the smoke inlet hole on the second experimental chamber is greater than the diameter of the smoke inlet hole on the third experimental chamber.

[0008] Furthermore, each of the experimental chambers is also provided with an air intake hole, which is connected to the external environment; an air intake regulating valve is provided in the air intake hole, and the air intake regulating valve is used to control the opening and closing of the air intake hole and adjust the opening degree of the air intake hole.

[0009] Furthermore, an air intake fan is also provided in the air intake hole.

[0010] Furthermore, the smoke inlet hole, the smoke exhaust hole and the air inlet hole are provided with a partition net, and the partition net is used to prevent experimental animals from entering the smoke inlet hole, the smoke exhaust hole and the air inlet hole.

[0011] Furthermore, the smoke producing chamber is provided with a smoke outlet, and the smoke outlet is communicated with the smoke inlet channel; a smoke outlet fan is provided in the smoke outlet.

[0012] Furthermore, the smoke producing chamber is provided with a ventilation hole, and the ventilation hole is communicated with the external environment.

[0013] Furthermore, a ventilation regulating valve is provided in the ventilation through hole, and the ventilation regulating valve is used to control the opening and closing of the ventilation through hole and adjust the opening degree of the ventilation through hole.

[0014] Furthermore, a ventilation fan is also provided in the ventilation hole.

[0015] Furthermore, the box door is provided with a plurality of observation windows and a plurality of sealing frames.

[0016] The technical solution of the utility model can achieve at least one of the following effects:

[0017] (1) The utility model is a fumigation experiment device, comprising a fumigation box and a purifier, wherein the purifier is used to purify the exhaust gas generated during the fumigation experiment; the fumigation box comprises a box door and a box body; the box body is provided with a smoke production chamber, a smoke inlet channel, a smoke exhaust channel and a plurality of experimental chambers capable of independently adjusting the smoke concentration; a partition is provided in the smoke inlet channel, and the partition divides the smoke inlet channel into a smoke mixing chamber and a smoke diffusion chamber; a smoke mixing fan is provided in the smoke mixing chamber; the smoke production chamber is connected with the smoke mixing chamber; each of the experimental chambers is provided with a smoke inlet hole and a smoke exhaust hole, the smoke inlet hole is connected with the smoke diffusion chamber, the smoke exhaust hole is connected with the smoke exhaust channel, and the smoke exhaust channel is connected with the purifier; the smoke inlet hole and the smoke exhaust hole are respectively provided with There are a smoke inlet regulating valve and a smoke exhaust regulating valve, the smoke inlet regulating valve is used to control the opening and closing of the smoke inlet hole and adjust the opening degree of the smoke inlet hole, and the smoke exhaust regulating valve is used to control the opening and closing of the smoke exhaust hole and adjust the opening degree of the smoke exhaust hole; the utility model is provided with a smoke production chamber and a plurality of experimental chambers which can independently adjust the smoke concentration, and by controlling the smoke inlet regulating valve and the smoke exhaust regulating valve in each experimental chamber, it is possible to adjust the speed and amount of smoke entering a single experimental chamber, thereby achieving the adjustment of the smoke concentration in a single experimental chamber, and then the smoke fumigation experiment device can simultaneously carry out mouse smoke fumigation experiments with different smoke concentrations, thereby improving the experimental efficiency; at the same time, it can also make the experimental conditions other than the smoke concentration remain consistent during the experiment, thereby improving the accuracy of the experiment.

[0018] (2) The utility model also provides an air intake hole on each of the experimental chambers, the air intake hole is connected to the external environment, and can introduce air into the experimental chamber; the air intake hole is provided with an air intake regulating valve, and the air intake regulating valve is used to control the opening and closing of the air intake hole and adjust the opening degree of the air intake hole; by controlling the air intake regulating valve in each experimental chamber, the air intake amount of a single experimental chamber can be adjusted, thereby achieving the adjustment of the oxygen concentration in a single experimental chamber, and ensuring the oxygen required for the survival of mice in the experimental chamber; the air intake hole is also provided with an air intake fan, and the air intake fan is used to blow external air into the experimental chamber, which can further ensure that there is sufficient oxygen in the experimental chamber.

[0019] (3) The utility model also provides a ventilation hole on the smoke producing chamber, the ventilation hole is connected to the external environment, and can introduce air into the smoke producing chamber to provide oxygen for the cigarettes placed in the smoke producing chamber, so as to ensure that the cigarettes can continuously produce smoke; the ventilation hole is provided with a ventilation regulating valve, and the ventilation regulating valve is used to control the opening and closing of the ventilation hole and adjust the opening degree of the ventilation hole; by controlling the ventilation regulating valve, the amount of air entering the smoke producing chamber can be adjusted, thereby adjusting the burning rate of the cigarettes in the smoke producing chamber, that is, adjusting the smoke production efficiency and smoke production amount of the cigarettes; the ventilation hole is also provided with a ventilation fan, and the external cavity is blown into the smoke producing chamber by the ventilation fan, which can further ensure that there is sufficient oxygen in the smoke producing chamber; the smoke production efficiency and smoke production amount of the cigarette can also be adjusted by adjusting the speed of the ventilation fan, so that the smoke production efficiency and smoke production amount of the cigarette can be adjusted and controlled, and the flexibility of the use of the fumigation device is further improved.

[0020] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0022] Figure 1 This is a schematic diagram of the structure of the smoke experiment device in the embodiment of the utility model;

[0023] Figure 2 This is the second structural schematic diagram of the smoking experiment device in the embodiment of the utility model;

[0024] Figure 3 for Figure 1 One of the sectional views along the AA line;

[0025] Figure 4 for Figure 1 Sectional view 2 along the AA line;

[0026] Figure 5 for Figure 1 Sectional view along the midline BB;

[0027] Figure 6 for Figure 3 Cross-sectional view of the enlarged part of Figure C.

[0028] Reference numerals:

[0029] 1-smoking box; 11-box door; 111-observation window; 112-sealing frame; 12-box body; 121-smoke production chamber; 1211-smoke outlet; 1212-ventilation hole; 1213-ventilation regulating valve; 122-smoke inlet channel; 1221-partition; 1222-smoke mixing chamber; 1223-smoke diffusion chamber; 123-experimental chamber; 1231-smoke inlet; 1232-smoke exhaust hole; 1233-air intake hole; 1234-smoke inlet regulating valve; 1235-smoke exhaust regulating valve; 1236-air intake regulating valve; 124-smoke exhaust channel; 13-door lock; 2-purifier. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0031] Example 1

[0032] A specific embodiment of the utility model discloses a smoking experiment device, such as Figures 1 to 5As shown, it includes a fumigation box 1 and a purifier 2, wherein the purifier 2 is arranged above the fumigation box 1, and the purifier 2 is used to purify the exhaust gas generated during the fumigation experiment; the fumigation box 1 includes a box door 11 and a box body 12, one side of the box body 12 is an open end, the box door 11 is hinged on the box body 12, and can be buckled on the opening of the box body 12, so that the box body 12 can form a closed cavity; the box body 12 is provided with a smoke generating chamber 121, a smoke inlet channel 122, a smoke exhaust channel 124 and a plurality of experimental chambers 123 capable of independently adjusting the smoke concentration The smoke producing chamber 121 is located below the plurality of experimental chambers 123, so that the smoke can be easily diffused; the smoke producing chamber 121 is connected to the smoke inlet channel 122, and the plurality of experimental chambers 123 are respectively connected to the smoke inlet channel 122 and the smoke exhaust channel 124, and the smoke exhaust channel 124 is connected to the purifier 2. The smoke produced by the smoke producing chamber 121 enters the experimental chamber 123 through the smoke inlet channel 122, and the waste gas produced in the experimental chamber 123 is discharged to the smoke exhaust channel 124 and discharged after being purified by the purifier 2; each of the experimental chambers 123 is provided with a smoke inlet hole 1231 and a smoke exhaust hole 1232. The smoke inlet hole 1231 is connected to the smoke inlet channel 122, and the smoke exhaust hole 1232 is connected to the smoke exhaust channel 124; the smoke inlet hole 1231 and the smoke exhaust hole 1232 are respectively provided with a smoke inlet regulating valve 1234 and a smoke exhaust regulating valve 1235, and the smoke inlet regulating valve 1234 and the smoke exhaust regulating valve 1235 are independently controlled, the smoke inlet regulating valve 1234 is used to control the opening and closing of the smoke inlet hole 1231 and adjust the opening degree of the smoke inlet hole 1231, and the smoke exhaust regulating valve 1235 is used to control the opening and closing of the smoke exhaust hole 1232 and adjust the opening degree of the smoke exhaust hole 1232 degree; compared with the prior art, by setting up a smoke production chamber 121 for unified smoke supply, and then by controlling the smoke inlet regulating valve 1234 and the smoke exhaust regulating valve 1235 in each experimental chamber 123, it is possible to adjust the speed and amount of smoke entering a single experimental chamber 123, thereby adjusting the smoke concentration in a single experimental chamber 123, and then realizing that the fumigation experiment device can simultaneously carry out mouse fumigation experiments with different smoke concentrations, thereby improving the experimental efficiency; at the same time, it can also make the experimental conditions other than the smoke concentration remain consistent during the experiment, thereby improving the accuracy of the experiment.

[0033] Preferably, if Figure 4 As shown, the smoke inlet hole 1231 and the smoke exhaust hole 1232 are arranged diagonally, that is, the smoke inlet hole 1231 and the smoke exhaust hole 1232 are arranged at the farthest position on the experimental chamber 123, so that the smoke can stay in the experimental chamber 123 as much as possible, and the smoke can be fully diffused in the experimental chamber 123, ensuring that the smoke concentration in the experimental chamber 123 is uniform.

[0034] Preferably, if Figure 4As shown, each of the experimental chambers 123 is also provided with an air intake hole 1233, and the air intake hole 1233 is connected to the external environment, and can introduce air into the experimental chamber 123; the air intake hole 1233 is provided with an air intake regulating valve 1236, and the air intake regulating valve 1236 is used to control the opening and closing of the air intake hole 1233 and adjust the opening degree of the air intake hole 1233; by controlling the air intake regulating valve 1236 in each experimental chamber 123, the air intake amount of a single experimental chamber 123 can be adjusted, thereby realizing the adjustment of the oxygen concentration in a single experimental chamber 123, and ensuring the oxygen required for the survival of mice in the experimental chamber 123.

[0035] Preferably, an air intake fan is provided in the air intake hole 1233, and external air is blown into the experimental chamber 123 through the air intake fan, which can further ensure that there is sufficient oxygen in the experimental chamber 123, and avoid the oxygen concentration in the experimental chamber 123 being too low, which may cause other physiological dysfunctions of the mice due to suffocation, increase additional inducing factors, and thus fail to truly reflect the smoke experiment indicators; at the same time, the air intake hole 1233 is arranged on the chamber wall of the experimental chamber 123 close to the smoke inlet hole 1231, and the axis of the air intake hole 1233 is perpendicular to the axis of the smoke inlet hole 1231 in the plane and intersects; the air blown into the experimental chamber 123 by the air intake fan has a certain kinetic energy, which can further mix the smoke, so that the smoke can be diffused more quickly into the entire experimental chamber 123, and the smoke in the experimental chamber 123 is evenly distributed, thereby improving the experimental efficiency of the smoke experiment device and the accuracy of the mouse smoke fumigation experiment.

[0036] Preferably, the smoke inlet hole 1231 , the smoke exhaust hole 1232 and the air inlet hole 1233 are all provided with a partition net at one end of the warehouse wall close to the experimental warehouse 123 , and the partition net can prevent experimental animals (such as mice) from entering the smoke inlet hole 1231 , the smoke exhaust hole 1232 and the air inlet hole 1233 .

[0037] Preferably, if Figure 5 As shown, the smoke producing chamber 121 is provided with a smoke outlet 1211, and the smoke outlet 1211 is connected to the smoke inlet channel 122. The smoke generated in the smoke producing chamber 121 enters the smoke inlet channel 122 through the smoke outlet 1211, and enters the experimental chamber 123 through the smoke inlet channel 122 through the smoke inlet holes 1231 on each experimental chamber 123.

[0038] Preferably, a smoke outlet fan is provided in the smoke outlet 1211, and the smoke outlet fan is used to quickly diffuse the smoke generated in the smoke production chamber 121 to the experimental chamber 123 through the smoke inlet channel 122, thereby improving the experimental efficiency of the fumigation device; in addition, the diffusion speed of the smoke can also be adjusted by the rotation speed of the smoke outlet fan, thereby achieving adjustable and controllable smoke diffusion, thereby improving the flexibility of use of the fumigation device.

[0039] Preferably, if Figure 6 As shown, the smoke producing chamber 121 is further provided with a ventilation hole 1212, and the ventilation hole 1212 is connected to the external environment, and can introduce air into the smoke producing chamber 121, so as to provide oxygen for the cigarettes placed in the smoke producing chamber 121, and ensure that the cigarettes can continuously produce smoke; the ventilation hole 1212 is provided with a ventilation regulating valve 1213, and the ventilation regulating valve 1213 is used to control the opening and closing of the ventilation hole 1212 and adjust the opening degree of the ventilation hole 1212; by controlling the ventilation regulating valve 1213, the amount of air entering the smoke producing chamber 121 can be adjusted, thereby adjusting the burning rate of the cigarettes in the smoke producing chamber 121, that is, adjusting the smoke production efficiency and smoke production of the cigarettes.

[0040] Preferably, a ventilation fan is also provided in the ventilation hole 1212, and the external cavity is blown into the smoke producing chamber 121 by the ventilation fan, which can further ensure that there is sufficient oxygen in the smoke producing chamber 121; the smoke production efficiency and smoke production volume of the cigarette can also be adjusted by adjusting the speed of the ventilation fan, so that the smoke production efficiency and smoke production volume of the cigarette can be adjusted and controlled, and the flexibility of the use of the smoking device is further improved.

[0041] Preferably, a partition 1221 is arranged in the smoke inlet channel 122, and the partition 1221 divides the smoke inlet channel 122 into a smoke mixing chamber 1222 and a smoke diffusion chamber 1223, and the smoke mixing chamber 1222 is connected to the smoke outlet 1211, and the smoke mixing chamber 1222 and the smoke diffusion chamber 1223 are connected through a plurality of small holes arranged on the partition 1221, and the smoke diffusion chamber 1223 is connected to the smoke inlet hole 1231 of each of the experimental chambers 123; a smoke mixing fan is arranged in the smoke mixing chamber 1222, and the smoke mixing fan is used to control the smoke entering the smoke mixing chamber 1222. The smoke is mixed to prevent the smoke from stratifying and make the smoke concentration uniform; the evenly mixed smoke enters the smoke diffusion chamber 1223 through the multiple small holes on the partition 1221, and enters the experimental chamber 123 through the smoke inlet hole 1231 of each experimental chamber 123, thereby avoiding the generated smoke from gathering at the top of the smoke inlet channel 122 and causing smoke stratification, and thus can more effectively control the amount of smoke entering each experimental chamber 123, that is, it is convenient to control the smoke concentration in each experimental chamber 123, and improve the accuracy of the smoke control experiment under different smoke concentrations performed by the smoke fumigation experimental device.

[0042] Preferably, Figure 2 As shown, the box door 11 is provided with a plurality of observation windows 111, and the plurality of observation windows 111 are respectively arranged opposite to the smoke production chamber 121 and the plurality of experimental chambers 123, and the observation windows 111 are used for real-time observation of the smoke production in the smoke production chamber 121, the diffusion conditions along the smoke in the experimental chamber 123, and the activities of mice.

[0043] Preferably, Figure 2 As shown, the box door 11 is also provided with a plurality of sealing frames 112, and the plurality of sealing frames 112 are respectively arranged opposite to the smoke producing chamber 121 and the plurality of experimental chambers 123. When the box door 11 is closed, the plurality of sealing frames 112 respectively seal the smoke producing chamber 121 and the plurality of experimental chambers 123, so that the smoke producing chamber 121 and the plurality of experimental chambers 123 are isolated from the external environment, that is, it is possible to prevent the smoke generated in the smoke producing chamber 121 from diffusing into the external environment, thereby preventing pollution to the external environment, and at the same time, it is also possible to avoid excessive smoke loss and improve the efficiency of smoke use; in addition, it is also possible to prevent air in the external environment from entering the experimental chamber 123, thereby preventing the smoke concentration in the experimental chamber 123 from being unstable, thereby improving the stability of the smoke fumigation experiment device for mice as well as the accuracy and consistency of the experiment.

[0044] Preferably, the smoking box 1 further comprises a door lock, and the door lock is used to lock the box door 11 to the box body 12; the door lock adopts an existing lock that can be purchased on the market.

[0045] Preferably, the motor, the air inlet of the purifier 2 is connected to the smoke exhaust channel 124; the purifier 2 is provided with a smoke exhaust fan and an activated carbon filter element, the smoke exhaust fan introduces the exhaust gas discharged from the multiple experimental chambers 123 to the smoke exhaust channel 124 into the activated carbon filter element for purification and then discharged through the exhaust port of the purifier, the purified exhaust gas can reduce the pollution to the external environment; the purifier 2 adopts the existing purifier equipment that can be purchased on the market.

[0046] Example 2

[0047] Embodiment 2 is a further improvement on the smoke inlet hole 1231 in the experimental chamber 123 based on Embodiment 1. The multiple experimental chambers 123 include a first experimental chamber, a second experimental chamber and a third experimental chamber arranged in sequence from bottom to top, and the first experimental chamber is adjacent to the smoke production chamber 121; the diameters of the smoke inlet holes 1231 of each experimental chamber 123 are not equal, preferably, the diameter of the smoke inlet hole 1231 on the first experimental chamber is greater than the diameter of the smoke inlet hole 1231 on the second experimental chamber, and the diameter of the smoke inlet hole 1231 on the second experimental chamber is greater than the diameter of the smoke inlet hole 1231 on the third experimental chamber, so that the amount of smoke entering each experimental chamber 123 per unit time is not equal, and then the smoke concentration in each experimental chamber 123 is not equal, so that the smoke experiment device completes the smoke control experiment under different smoke concentrations.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A smoking experiment device, characterized in that: It comprises a fumigation box (1) and a purifier (2), wherein the purifier (2) is used to purify waste gas generated during a fumigation experiment; The smoking box (1) comprises a box door (11) and a box body (12); The box body (12) is provided with a smoke generating chamber (121), a smoke inlet channel (122), a smoke exhaust channel (124) and a plurality of experimental chambers (123) capable of independently adjusting smoke concentration; A partition (1221) is provided in the smoke inlet channel (122), and the partition (1221) divides the smoke inlet channel (122) into a smoke mixing chamber (1222) and a smoke diffusion chamber (1223); a smoke mixing fan is provided in the smoke mixing chamber (1222); The smoke generating chamber (121) is in communication with the smoke mixing chamber (1222); Each of the experimental chambers (123) is provided with a smoke inlet hole (1231) and a smoke exhaust hole (1232), the smoke inlet hole (1231) is connected to the smoke diffusion chamber (1223), the smoke exhaust hole (1232) is connected to the smoke exhaust channel (124), and the smoke exhaust channel (124) is connected to the purifier (2); The smoke inlet hole (1231) and the smoke exhaust hole (1232) are respectively provided with a smoke inlet regulating valve (1234) and a smoke exhaust regulating valve (1235); the smoke inlet regulating valve (1234) is used to control the opening and closing of the smoke inlet hole (1231) and to adjust the opening degree of the smoke inlet hole (1231); the smoke exhaust regulating valve (1235) is used to control the opening and closing of the smoke exhaust hole (1232) and to adjust the opening degree of the smoke exhaust hole (1232).

2. A smoking experiment device according to claim 1, characterized in that: The multiple experimental chambers (123) include a first experimental chamber, a second experimental chamber, and a third experimental chamber which are arranged in sequence from bottom to top; the diameter of the smoke inlet hole (1231) on the first experimental chamber is larger than the diameter of the smoke inlet hole (1231) on the second experimental chamber; the diameter of the smoke inlet hole (1231) on the second experimental chamber is larger than the diameter of the smoke inlet hole (1231) on the third experimental chamber.

3. A smoking experiment device according to claim 1 or 2, characterized in that: Each of the experimental chambers (123) is also provided with an air intake hole (1233), and the air intake hole (1233) is connected to the external environment; an air intake regulating valve (1236) is provided in the air intake hole (1233), and the air intake regulating valve (1236) is used to control the opening and closing of the air intake hole (1233) and adjust the opening degree of the air intake hole (1233).

4. A smoking experiment device according to claim 3, characterized in that: An air intake fan is also provided in the air intake hole (1233).

5. A smoking experiment device according to claim 4, characterized in that: The smoke inlet hole (1231), the smoke exhaust hole (1232) and the air inlet through hole (1233) are further provided with partitions, and the partitions are used to prevent experimental animals from entering the smoke inlet hole (1231), the smoke exhaust hole (1232) and the air inlet through hole (1233).

6. A smoking experiment device according to claim 5, characterized in that: The smoke producing chamber (121) is provided with a smoke outlet (1211), and the smoke outlet (1211) is communicated with the smoke inlet channel (122); a smoke outlet fan is provided in the smoke outlet (1211).

7. A smoking experiment device according to claim 6, characterized in that: The smoke producing chamber (121) is also provided with a ventilation hole (1212), and the ventilation hole (1212) is connected to the external environment.

8. The smoking experiment device according to claim 7, characterized in that: The ventilation through hole (1212) is provided with a ventilation regulating valve (1213), and the ventilation regulating valve (1213) is used to control the opening and closing of the ventilation through hole (1212) and to adjust the opening degree of the ventilation through hole (1212).

9. A smoking experiment device according to claim 8, characterized in that: A ventilation fan is also provided in the ventilation hole (1212).

10. The smoking experiment device according to claim 9, characterized in that: The box door (11) is provided with a plurality of observation windows (111) and a plurality of sealing frames (112).

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