Smoke, vapor exposure simulation device based on rotating sample platform
Patent Information
- Application Number
- CN202611062907.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-17
- Publication Date
- 2026-10-23
AI Technical Summary
[0004]然而，现有装置主要集中在烟雾输送与基本暴露功能，结构相对简单，多以固定式样品支架为主，烟雾在腔体内的流动路径和分布状态缺乏有效控制，此外，不同装置之间在适配烟源类型、环境控制方式以及样品安装结构等方面存在较大差异，尚未形成统一且完善的技术方案
[0016]综上所述，本发明主要具有以下有益效果：通过底座内置驱动电机驱动承载样品的平台匀速旋转，搭配密闭透明外壳、温湿度闭环调控模块、卡接式烟源接口和多功能样品固定组件，解决了传统暴露装置样品支架固定、烟雾分布不均、温湿度难控、烟源拆装繁琐、样品装夹形式单一等问题，并且旋转平台使样品全方位处于烟雾环境，温湿度模块实时调控实验条件，可切换的样品卡座兼容不同样本，快拆烟源接口适配多种烟源，统一多场景实验工况，提升实验数据一致性与装置通用性；
Smart Images
Figure CN122961891A_ABST
Abstract
Description
Technical Field
[0001] This invention relates primarily to the technical field of biological experimental instruments, specifically to a smoke and vapor exposure simulation device based on a rotating sample platform. Background Technology
[0002] With the increasing use of tobacco products (including traditional cigarettes and e-cigarettes) and the deepening research on related health effects, the demand for simulation and evaluation of the effects of smoke or aerosol exposure in the laboratory is growing, especially in the fields of materials science, biomedicine and public health research, where there is a need to systematically study the components of smoke and their effects on samples using experimental devices.
[0003] Currently, there are various experimental devices for smoke or aerosol exposure in existing technologies. These devices typically include a smoke generation unit, a delivery pipeline, and an exposure chamber. Smoke is introduced into a closed space through an external airflow or suction device, thereby bringing the sample into contact with the smoke to achieve the relevant testing objectives. The general structure is as follows: a cigarette or e-cigarette is fixed at the inlet end, and an inhalation effect is generated by a pump or airflow device, causing the smoke to enter the pipeline and be delivered to the inside of the exposure chamber. A sample holder is set in the chamber, and the sample to be tested is placed in it. The experimental process is completed through exposure for a certain period of time.
[0004] However, existing devices mainly focus on smoke delivery and basic exposure functions, with relatively simple structures, mostly consisting of fixed sample holders. The flow path and distribution of smoke within the chamber lack effective control. Furthermore, there are significant differences between different devices in terms of adapting to smoke source types, environmental control methods, and sample installation structures, and a unified and complete technical solution has not yet been formed. Summary of the Invention
[0005] Therefore, the purpose of this invention is to provide a smoke and vapor exposure simulation device based on a rotating sample platform to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A smoke and vapor exposure simulation device based on a rotating sample platform includes a base, a transparent shell, a smoke supply component, and a control component. The base has a groove on its upper surface, in which a fixing block is fixed. The outer circumference of the upper surface of the fixing block has a mounting groove for detachably installing the transparent shell. A platform is provided on the upper surface of the fixing block. A cavity is formed inside the base, and the control component is disposed within the cavity. The control component includes a drive motor, a temperature control module, and a humidity control module. The drive motor is installed at the center of the cavity bottom, and its output shaft passes through the base and the fixing block, connecting to the center of the platform to drive its rotation. Several fixing components for placing samples are provided on the upper surface of the platform. The temperature control module and humidity control module are symmetrically installed on both sides of the cavity to regulate the temperature and humidity inside the transparent shell. The smoke supply assembly includes a miniature air pump and an interface. The miniature air pump is mounted on the top side of the transparent housing via a mounting base. The output port of the miniature air pump is connected to a pipe, and the other end of the pipe passes through a smoke inlet opened at the center of the top of the transparent housing. The interface is detachably mounted on the air inlet end of the miniature air pump via a snap-fit assembly. The end of the interface away from the miniature air pump is provided with a smoke source socket for connecting a smoke source.
[0007] Specifically, each of the fixing components includes a fixing plate. The upper surface of the platform has several placement slots, and the fixing plate is installed in the placement slots. The upper surface of the fixing plate has a first storage slot, and the bottom of the first storage slot has a second storage slot. The first storage slot has a movable plate for horizontally placing the sample. One end of each side of the movable plate is rotatably connected to the wall of the first storage slot via a shaft. The lower surface of the movable plate has an integrally formed sliding plate for vertically installing the sample, and the sliding plate matches the second storage slot.
[0008] Specifically, in this technical solution, side plates are fixed on both sides of the upper surface of the fixed plate, and an abutment plate is fixed on the upper surface of the fixed plate at the rotation point of the movable plate. A magnetic block that magnetically attracts the movable plate is embedded in the abutment plate, and a pull plate is fixed on the side of the upper surface of the movable plate away from the abutment plate.
[0009] Specifically, the snap-fit assembly includes a collar, which is sleeved and fixed to the outer wall of the air inlet of the micro air pump. Positioning holes are provided on both inner rings of the collar, and side blocks are symmetrically fixed to the two ring walls. A stroke groove is provided inside each of the two side blocks, and a snap-fit block is slidably fitted into each of the two stroke grooves. A connecting rod is fixed to the outer wall of each of the two snap-fit blocks. The ends of each connecting rod extend out of the side blocks and are fixed with pull handles. A retraction spring is fixed between the two pull handles and the side blocks, and the two ends of the retraction springs are respectively fixedly connected to the pull handles and the outer walls of the side blocks.
[0010] Specifically, in this technical solution, both stroke slots are connected to the positioning sockets. The two sides of the interface facing the micro air pump are integrally fixed with a retaining plate. Both retaining plates are matched with the corresponding positioning sockets. The outer walls of both retaining plates are provided with snap-fit grooves. The snap-fit block is inserted into the snap-fit groove. The center of the interface facing the micro air pump is provided with an abutment groove that matches the air inlet end. The end of one retaining plate is provided with a slot that matches the pipe.
[0011] Specifically, in this technical solution, a first sealing ring is bonded to the outer wall of the micro air pump at the air inlet end, a second sealing ring is bonded to the end face of the micro air pump at the air inlet end, the groove wall of the abutment groove is in contact with the second sealing ring, and the end face of the interface located at the abutment groove is in contact with the first sealing ring.
[0012] Specifically, in this technical solution, the top of the transparent shell is connected to a smoke exhaust pipe on the side of the smoke inlet, and a one-way valve is installed on the body of the smoke exhaust pipe.
[0013] Specifically, in this technical solution, the bottom end of the mounting base is bonded and fixed to the top of the transparent shell, and the top end of the mounting base is provided with a limiting groove for securing the micro air pump.
[0014] Specifically, in this technical solution, a display panel and a start switch are embedded in the outer wall of the base, and the display panel and the start switch are electrically connected to the drive motor, the temperature control module and the humidity control module, respectively.
[0015] Specifically, in this technical solution, the temperature control module consists of a heating element and a temperature sensor, and the humidity control module consists of a water storage unit, an evaporation unit, and a humidity sensor. Both the temperature sensor and the humidity sensor extend into the inner cavity of the transparent shell to collect the temperature and humidity data inside the shell in real time. The heating element adjusts the internal temperature of the transparent shell based on the feedback data from the temperature sensor. The evaporation unit atomizes the water in the water storage unit and delivers it to the inside of the transparent shell based on the feedback data from the humidity sensor, thereby regulating the humidity inside the transparent shell.
[0016] In summary, the present invention has the following advantages: the platform carrying the sample is driven to rotate at a constant speed by the built-in drive motor in the base, and with the sealed transparent shell, temperature and humidity closed-loop control module, snap-on smoke source interface and multi-functional sample fixing components, it solves the problems of sample holder fixing, uneven smoke distribution, difficult temperature and humidity control, cumbersome smoke source disassembly and assembly, and single sample clamping form in traditional exposure devices. Moreover, the rotating platform allows the sample to be in the smoke environment from all directions, the temperature and humidity module controls the experimental conditions in real time, the switchable sample holder is compatible with different samples, the quick-release smoke source interface is compatible with multiple smoke sources, and the experimental conditions in multiple scenarios are unified, improving the consistency of experimental data and the versatility of the device. The continuous rotation of the platform will spontaneously generate a low-speed, swirling airflow within the sealed transparent shell cavity. This eliminates the need for an additional internal circulating fan to agitate the uniform diffusion of smoke within the cavity. While achieving uniform smoke envelopment of the sample, it also eliminates the need for additional air path components, simplifies the overall mechanical structure, reduces equipment processing and manufacturing costs, and avoids the drawbacks of external fans forcibly supplying air, which disrupts the natural smoke diffusion pattern and deviates from the actual human inhalation environment. Meanwhile, the miniature air pump and the smoke source interface adopt a double-layer sealing ring with a snap-locking sealing structure. Under long-term use conditions of frequent plugging and unplugging to change different smoke sources, it can still stably maintain the airtightness of the inner cavity of the transparent shell, greatly reducing the risk of air leakage in the cavity caused by repeated disassembly and reassembly of the smoke source. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall oblique axonometric structure of the present invention; Figure 2 This is a schematic diagram of the overall orthographic cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the main structure of the smoke supply component of the present invention; Figure 5 This is a schematic diagram of the separation structure of the smoke supply component of the present invention; Figure 6 This is a schematic diagram of the micro air pump structure of the present invention; Figure 7 This is a schematic diagram of the snap-fit assembly structure of the present invention; Figure 8 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the fixed component structure of the present invention.
[0018] Explanation of reference numerals in the attached drawings: 1. Base; 101. Groove; 102. Cavity; 1021. Drive motor; 1022. Temperature control module; 1023. Humidity control module; 103. Fixing block; 104. Display panel; 105. Start switch; 2. Transparent outer shell; 201. Smoke inlet; 202. Smoke exhaust pipe; 2021. One-way valve; 3. Platform; 301. Placement slot; 4. Fixing assembly; 401. Fixing plate; 402. First storage slot; 4021. Second storage slot; 403. Movable plate; 4031. Pull plate; 4032, Slide plate; 404, Abutment plate; 405, Side plate; 5, Mounting base; 501, Miniature air pump; 502, Pipeline; 503, First sealing ring; 504, Second sealing ring; 6, Interface; 601, Clamping plate; 6011, Groove; 6012, Snap-fit groove; 602, Abutment groove; 603, Smoke source inlet; 7, Snap-fit assembly; 701, Collar; 7011, Positioning hole; 702, Side block; 7021, Stroke groove; 703, Snap-fit block; 704, Connecting rod; 7041, Pull handle; 705, Retraction spring. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] The embodiments of the present invention will now be described.
[0021] In this embodiment, please refer to Figure 1 - Figure 5 As shown, the smoke and vapor exposure simulation device based on a rotating sample platform includes a base 1, a transparent shell 2, a smoke supply component, and a control component. The base 1 is made of rigid engineering plastic in one piece, and the transparent shell 2 is made of transparent acrylic material. A groove 101 is formed on the upper surface of the base 1, and a fixing block 103 is fixed in the groove 101. An installation groove for detachable installation of the transparent shell 2 is formed on the outer ring of the upper surface of the fixing block 103. A rubber sealing gasket is added to the inner wall of the installation groove to effectively improve the airtightness of the transparent shell 2 after it is fitted with the fixing block 103, so as to avoid smoke leakage during the experiment. A platform 3 is provided on the upper surface of the fixing block 103, and a cavity 102 is formed inside the base 1. The control component is set in the cavity 102 to isolate external dust and water vapor and ensure long-term stable operation of the components. The control components include a drive motor 1021, a temperature control module 1022, and a humidity control module 1023. A display panel 104 and a start switch 105 are embedded in the outer wall of the base 1. The display panel 104 and the start switch 105 are electrically connected to the drive motor 1021, the temperature control module 1022, and the humidity control module 1023, respectively. The operator can start and stop the device through the start switch 105 and view the operating parameters such as the temperature and humidity inside the transparent shell 2 and the speed of the drive motor 1021 in real time through the display panel 104. The temperature control module 1022 consists of a PTC constant temperature heating element and a temperature sensor. The humidity control module 1023 consists of a water storage unit, an evaporation unit, and a humidity sensor. The temperature sensor and the humidity sensor both extend into the inner cavity of the transparent shell 2 to collect the temperature and humidity data inside the shell in real time. The heating element adjusts the temperature inside the transparent shell 2 based on the feedback data from the temperature sensor. The evaporation unit atomizes the water in the water storage unit and delivers it to the inside of the transparent shell 2 based on the feedback data from the humidity sensor to regulate the humidity inside the transparent shell 2. The drive motor 1021 is a geared stepper motor. The drive motor 1021 is installed at the center of the bottom of the cavity 102. The output shaft of the drive motor 1021 passes through the base 1 and the fixing block 103 and is connected to the center of the platform 3. After being powered on, it can drive the platform 3 to rotate continuously at a constant speed of 360°. The upper surface of the platform 3 is provided with several fixing components 4 for placing samples. The temperature control module 1022 and the humidity control module 1023 are symmetrically installed on both sides of the cavity 102 to regulate the temperature and humidity inside the transparent shell 2 and ensure the uniformity of temperature and humidity regulation. The smoke supply assembly includes a miniature air pump 501 and an interface 6. The miniature air pump 501 is mounted on the top side of the transparent housing 2 via a mounting base 5. The bottom end of the mounting base 5 is bonded and fixed to the top of the transparent housing 2. The top end of the mounting base 5 is provided with a limiting groove for securing the miniature air pump 501, making it easy to assemble and disassemble while ensuring a stable fixation. The output port of the miniature air pump 501 is connected to a pipe 502. The other end of the pipe 502 extends into the cavity through the smoke inlet 201 opened at the center of the top of the transparent housing 2. The interface 6 is detachably mounted on the miniature air pump 501 via a snap-fit assembly 7. The air inlet of 1 can be disassembled and replaced with an interface 6 that is compatible with different types of smoke sources such as traditional cigarettes and electronic cigarettes. The end of the interface 6 away from the micro air pump 501 is provided with a smoke source inlet 603 for connecting to the smoke source. The top of the transparent shell 2 is connected to the exhaust pipe 202 on one side of the smoke inlet 201. A one-way valve 2021 is installed on the body of the exhaust pipe 202. The one-way valve 2021 only allows the smoke in the cavity to be discharged outward, which can prevent the outside air from flowing back into the cavity and avoid excessive pressure accumulation in the cavity, thus improving the safety of experimental operation.
[0022] During the experimental preparation stage, the operator first switches the sample placement mode of the fixing component 4 according to the shape of the sample to be tested and the testing requirements, and selects the horizontal placement or vertical insertion method to fix the sample. When placed horizontally, the sample only needs to be placed on the movable plate 403. When placed vertically, the movable plate 403 needs to be flipped and the sample inserted into the sliding plate 4032. After the sample is fixed, the transparent shell 2 is embedded in the mounting groove of the fixing block 103 to complete the sealing of the experimental chamber. Then, the smoke source required for the experiment is selected and inserted into the smoke source socket 603 of the interface 6. The interface 6 can be disassembled and replaced with an interface 6 that is compatible with different smoke source specifications as needed through the snap-fit component 7. During the experimental operation, the operator presses the start switch 105 to start the device. The control component and the smoke supply component work synchronously, that is, the drive motor 1021 is powered on and runs. The drive platform 3 drives all samples to rotate 360° at a uniform speed. The micro air pump 501 starts to generate negative pressure suction, simulating the airflow characteristics of human smoking. The smoke or vapor generated by the smoke source is stably delivered from the smoke inlet 201 to the inner cavity of the transparent shell 2 through the interface 6, the micro air pump 501, and the pipe 502. The temperature sensor and humidity sensor collect the temperature and humidity data in the cavity in real time and feed them back to the corresponding control module. The temperature control module 1022 automatically adjusts the heating power to stabilize the cavity temperature at the experimental set value. The humidity control module 1023 replenishes water through ultrasonic atomization to accurately maintain the humidity stability of the cavity and construct experimental conditions consistent with the human physiological environment. During the experiment, excess smoke inside the transparent shell 2 is continuously discharged through the exhaust pipe 202. The one-way valve 2021 prevents backflow of outside air and maintains stable chamber pressure. The display panel 104 displays the experimental parameters in real time, making it easy for operators to monitor the experimental process. After the experiment, press the start switch 105 to turn off the device. The drive motor 1021, micro air pump 501, temperature control module 1022 and humidity control module 1023 stop running. After removing the transparent shell 2, take out the sample to be tested and complete the entire smoke and vapor exposure simulation experiment. This solves the problems of traditional exposure devices, such as fixed sample holders, uneven smoke distribution, difficulty in controlling temperature and humidity, cumbersome smoke source disassembly and assembly, and limited sample clamping methods. It also ensures that the sample is exposed to the smoke environment from all directions, the temperature and humidity module controls the experimental conditions in real time, the switchable sample holder is compatible with different samples, the quick-release interface 6 is compatible with multiple smoke sources, unifies experimental conditions in multiple scenarios, improves the consistency of experimental data and the versatility of the device, and the continuous rotation of platform 3 will spontaneously generate a low-speed surrounding vortex airflow in the inner cavity of the sealed transparent shell 2. It can agitate the smoke inside the cavity and diffuse it evenly without the need for an additional internal circulation fan. It achieves uniform smoke coverage of the sample while eliminating the need for additional gas path components.
[0023] Please see Figure 8 and Figure 9As shown, each fixing component 4 includes a fixing plate 401. The upper surface of the platform 3 has several placement slots 301. The fixing plate 401 is installed in the placement slots 301. The upper surface of the fixing plate 401 has a first storage slot 402. The bottom of the first storage slot 402 has a second storage slot 4021. The first storage slot 402 has a movable plate 403 for horizontal sample placement. One end of each side of the movable plate 403 is rotatably connected to the wall of the first storage slot 402 via a shaft, allowing it to rotate around the shaft. The lower surface of the movable plate 403 has an integrally formed sliding plate 4032 for vertical sample installation. The sliding plate 4032 matches the second storage slot 4021. Flipping the movable plate 403 allows the sliding plate 4032 to move out of the second storage slot 402. Inside 1, the slide plate 4032 can be used for vertical insertion and fixing of the sample to be tested. Side plates 405 are fixed on both sides of the upper surface of the fixed plate 401. An abutment plate 404 is fixed on the upper surface of the fixed plate 401 at the rotation point of the movable plate 403. A magnetic block that magnetically attracts the movable plate 403 is embedded in the abutment plate 404. The movable plate 403 is made of magnetically attractable metal material. A pull plate 4031 is fixed on the side of the upper surface of the movable plate 403 away from the abutment plate 404. The operator can easily flip the movable plate 403 through the pull plate 4031 to quickly complete the switching of the sample placement mode. The pull plate 4031, the abutment plate 404 and the two side plates 405 can form a stable horizontal placement space for the sample to be placed horizontally, so as to prevent the sample from slipping during the rotation of the platform 3.
[0024] When selecting horizontal sample placement, simply place the sample directly on the horizontal movable plate 403. When selecting vertical sample insertion, the operator pulls the pull plate 4031 to flip the movable plate 403, causing the slide plate 4032 to rotate out of the second storage slot 4021. After the movable plate 403 rotates to the vertical position, it is magnetically attracted and fixed by the magnetic block in the abutment plate 404. Then, the sample is inserted into the slide plate 4032 to complete the clamping. This allows for exposure experiments to be completed in conjunction with the rotating platform 3 without the need for additional fixing accessories. The switching operation is simple and efficient, and can quickly adapt to the installation requirements of samples of different shapes.
[0025] Please see Figure 6 and Figure 7As shown, the snap-fit assembly 7 includes a collar 701, which is sleeved and fixed to the outer wall of the air inlet end of the micro air pump 501. Positioning insertion holes 7011 are provided on the inner rings of both sides of the collar 701, and side blocks 702 are symmetrically fixed to the two ring walls of the collar 701. Each side block 702 has a stroke groove 7021 inside, and a snap-fit block 703 is slidably fitted into each of the two stroke grooves 7021. Connecting rods 704 are fixed to the outer walls of each of the two snap-fit blocks 703. The ends of each connecting rod 704 extend out of the side blocks 702 and are fixed with pull handles 7041. Retraction springs 705 are fixed between the two pull handles 7041 and the side blocks 702. The two ends of the two retraction springs 705 are fixedly connected to the pull handles 7041 and the outer walls of the side blocks 702, respectively. Both stroke grooves 7021 are connected to the positioning insertion holes 7011. Spring 705 always provides inward elastic force, driving the snap-fit block 703 to remain extended into the positioning socket 7011. The interface 6 has snap-fit plates 601 integrally fixed on both sides of the end facing the micro air pump 501. Both snap-fit plates 601 are matched with the corresponding positioning sockets 7011. The outer wall of both snap-fit plates 601 is provided with snap-fit grooves 6012. The snap-fit block 703 is inserted into the snap-fit grooves 6012. The snap-fit block 703 can be inserted into the snap-fit grooves 6012 under the action of the retraction spring 705, so as to realize the quick snap-fit fixation between the interface 6 and the micro air pump 501. The center of the end of the interface 6 facing the micro air pump 501 is provided with an abutment groove 602 that matches the air inlet end. The end of one snap-fit plate 601 is provided with a slot 6011 that matches the pipe 502 to avoid assembly interference between the pipe 502 and the snap-fit plate 601. The micro air pump 501 has a first sealing ring 503 bonded to the outer wall of the air inlet end, and a second sealing ring 504 bonded to the end face of the air inlet end of the micro air pump 501. The groove wall of the abutment groove 602 is in contact with the second sealing ring 504, and the end face of the interface 6 located at the abutment groove 602 is in contact with the first sealing ring 503, forming a double-layer sealing structure to avoid air leakage during the smoke source extraction process.
[0026] When it is necessary to disassemble or assemble the interface 6, the operator pulls both handles 7041 with both hands at the same time. The handles 7041 drive the connecting rod 704 and the locking block 703 to move outward, stretching the retraction spring 705 and causing the locking block 703 to exit from the locking groove 6012. Then the interface 6 together with the locking plate 601 can be pulled out from the collar 701 to complete the disassembly. When installing the new interface 6, pull both handles 7041 to retract the locking block 703 into the travel groove 7021. Align the two locking plates 601 of the interface 6 with the positioning holes 7011 of the collar 701 and insert them until the air inlet end of the micro air pump 501 is pressed against the bottom of the abutment groove 602. Then release the handles 7041, and the retracting spring 705 will rebound and push the locking block 703 into the corresponding locking groove 6012 of the locking plate 601. This completes the locking and fixing of the interface 6. The disassembly and assembly process does not require additional tools, making it convenient to operate. It allows for quick replacement of the interface 6 to adapt to different smoke sources, improving the device's adaptability.
[0027] The working principle of this invention is as follows: First, according to the shape of the sample to be tested and the testing requirements, the sample placement mode of the fixing component 4 is switched. When the horizontal sample placement mode is selected, the sample can be placed directly on the horizontal movable plate 403. When the vertical insertion mode is selected, the operator pulls the pull plate 4031 to flip the movable plate 403, so that the slide plate 4032 rotates out from the second storage slot 4021. After the movable plate 403 rotates to the vertical position, it is magnetically attracted and fixed by the magnetic block in the abutment plate 404. Then the sample is inserted into the slide plate 4032 to complete the clamping. After the sample is fixed, the transparent shell 2 is embedded in the mounting groove of the fixing block 103 to seal the experimental chamber. Then, the smoke source required for the experiment is selected and inserted into the smoke source socket 603 of the interface 6. Next, the operator presses the start switch 105 to start the device. The control component and the smoke supply component work synchronously, that is, the drive motor 1021 is powered on and runs. The drive platform 3 drives all samples to rotate 360° at a uniform speed. The micro air pump 501 is started to generate a negative pressure suction effect, simulating the airflow characteristics of human smoking. The smoke or vapor generated by the smoke source is delivered to the inner cavity of the transparent shell 2 through the interface 6, the micro air pump 501, and the pipe 502 in sequence from the smoke inlet 201. The temperature sensor and humidity sensor collect the temperature and humidity data in the cavity in real time and feed them back to the corresponding control module. The temperature control module 1022 automatically adjusts the heating power to stabilize the cavity temperature at the experimental set value. The humidity control module 1023 replenishes water through ultrasonic atomization to accurately maintain the humidity stability of the cavity and build experimental conditions consistent with the human physiological environment. Excess smoke inside the transparent shell 2 is continuously discharged through the exhaust pipe 202 to maintain stable chamber pressure. The display panel 104 displays experimental parameters in real time, making it easy for operators to monitor the experimental process. After the experiment, the start switch 105 is pressed to turn off the device, and the drive motor 1021, micro air pump 501, temperature control module 1022 and humidity control module 1023 stop running. After removing the transparent shell 2, the sample to be tested is taken out, completing the entire smoke and vapor exposure simulation experiment.
[0028] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A smoke and vapor exposure simulation device based on a rotating sample platform, comprising a base (1), a transparent shell (2), a smoke supply component, and a control component, wherein a groove (101) is provided on the upper surface of the base (1), a fixing block (103) is fixed in the groove (101), and a mounting groove for detachably installing the transparent shell (2) is provided on the outer circumference of the upper surface of the fixing block (103), characterized in that, The upper surface of the fixing block (103) is provided with a platform (3), and the interior of the base (1) is provided with a cavity (102). The control component is set in the cavity (102). The control component includes a drive motor (1021), a temperature control module (1022), and a humidity control module (1023). The drive motor (1021) is installed at the center of the bottom of the cavity (102). The output shaft of the drive motor (1021) passes through the base (1) and the fixing block (103) and is connected to the center of the platform (3) to drive the platform (3) to rotate. The upper surface of the platform (3) is provided with several fixing components (4) for placing samples. The temperature control module (1022) and the humidity control module (1023) are symmetrically installed on both sides of the cavity (102) to adjust the temperature and humidity inside the transparent shell (2). The smoke supply assembly includes a miniature air pump (501) and an interface (6). The miniature air pump (501) is mounted on the top side of the transparent housing (2) via a mounting base (5). The output port of the miniature air pump (501) is connected to a pipe (502). The other end of the pipe (502) passes through a smoke inlet (201) opened at the center of the top of the transparent housing (2). The interface (6) is detachably mounted on the air inlet of the miniature air pump (501) via a snap-fit assembly (7). The end of the interface (6) away from the miniature air pump (501) is provided with a smoke source socket (603) for connecting to a smoke source.
2. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 1, characterized in that, Each of the fixed components (4) includes a fixed plate (401). The upper surface of the platform (3) is provided with a plurality of placement slots (301). The fixed plate (401) is installed in the placement slots (301). The upper surface of the fixed plate (401) is provided with a first storage slot (402). The bottom of the first storage slot (402) is provided with a second storage slot (4021). The first storage slot (402) is provided with a movable plate (403) for horizontal placement of the sample. One end of both sides of the movable plate (403) is rotatably connected to the wall of the first storage slot (402) through a shaft. The lower surface of the movable plate (403) is integrally provided with a sliding plate (4032) for vertical installation of the sample. The sliding plate (4032) matches the second storage slot (4021).
3. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 2, characterized in that, Side plates (405) are fixed on both sides of the upper surface of the fixed plate (401). An abutment plate (404) is fixed on the upper surface of the fixed plate (401) at the rotation point of the movable plate (403). A magnetic block that magnetically attracts the movable plate (403) is embedded in the abutment plate (404). A pull plate (4031) is fixed on the side of the upper surface of the movable plate (403) away from the abutment plate (404).
4. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 1, characterized in that, The snap-fit assembly (7) includes a collar (701), which is sleeved and fixed on the outer wall of the air inlet end of the micro air pump (501). Positioning holes (7011) are provided on the inner rings of both sides of the collar (701), and side blocks (702) are symmetrically fixed on the two ring walls of the collar (701). Stroke grooves (7021) are provided inside the two side blocks (702), and the two stroke grooves (7021) are slidably fitted within them. There are two snap-fit blocks (703), and connecting rods (704) are fixed to the outer walls of the two snap-fit blocks (703). The ends of the two connecting rods (704) extend out of the side block (702) and are fixed with pull handles (7041). A retraction spring (705) is fixed between the two pull handles (7041) and the side block (702). The two ends of the two retraction springs (705) are fixedly connected to the pull handles (7041) and the outer walls of the side block (702), respectively.
5. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 4, characterized in that, Both stroke slots (7021) are connected to the positioning sockets (7011). The interface (6) is fixed with a card plate (601) on both sides of one end facing the micro air pump (501). Both card plates (601) are matched with the corresponding positioning sockets (7011). The outer wall of both card plates (601) is provided with a snap-fit groove (6012). The snap-fit block (703) is inserted into the snap-fit groove (6012). The center of one end of the interface (6) facing the micro air pump (501) is provided with an abutment groove (602) that matches the air inlet end. The end of one card plate (601) is provided with a slot (6011) that matches the pipe (502).
6. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 5, characterized in that, The micro air pump (501) has a first sealing ring (503) bonded to the outer wall of the air inlet end, and a second sealing ring (504) bonded to the end face of the air inlet end of the micro air pump (501). The groove wall of the abutment groove (602) is in contact with the second sealing ring (504), and the end face of the interface (6) at the abutment groove (602) is in contact with the first sealing ring (503).
7. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 1, characterized in that, The top of the transparent shell (2) is connected to a smoke exhaust pipe (202) on one side of the smoke inlet (201), and a one-way valve (2021) is installed on the body of the smoke exhaust pipe (202).
8. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 1, characterized in that, The bottom end of the mounting base (5) is bonded and fixed to the top of the transparent shell (2), and the top end of the mounting base (5) is provided with a limiting slot for securing the micro air pump (501).
9. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 1, characterized in that, The outer wall of the base (1) is fitted with a display panel (104) and a start switch (105). The display panel (104) and the start switch (105) are electrically connected to the drive motor (1021), the temperature control module (1022) and the humidity control module (1023), respectively.
10. The smoke and vapor exposure simulation device based on a rotating sample platform according to claim 9, characterized in that, The temperature control module (1022) consists of a heating element and a temperature sensor. The humidity control module (1023) consists of a water storage unit, an evaporation unit, and a humidity sensor. The temperature sensor and the humidity sensor are both inserted into the inner cavity of the transparent shell (2) to collect the temperature and humidity data inside the shell in real time. The heating element adjusts the internal temperature of the transparent shell (2) based on the feedback data from the temperature sensor. The evaporation unit atomizes the water in the water storage unit and delivers it to the inside of the transparent shell (2) based on the feedback data from the humidity sensor, thereby adjusting the humidity inside the transparent shell (2).