A sensory control ventilation device

Abstract

The present invention relates to the technical field of tent ventilation, and discloses a sensor-controlled ventilation device, comprising: two ventilation ducts installed on the tent wall, the two ventilation ducts are respectively provided with blower parts with opposite blowing directions, and the wind force in the air inlet duct is less than the wind force in the air outlet duct; two connecting ports are provided on the two ventilation ducts, and a circulation pipe is connected between the two opposite connecting ports of the two ventilation ducts, and the outer wall of the circulation pipe is provided with a centrifugal hole; a switching part is used to enable the ventilation duct to be connected to only one of the connecting ports, so that the two ventilation ducts can switch between the external circulation and the internal circulation state. The present invention switches the air circulation in the tent back and forth between the external circulation and the internal circulation through the switching part, which can not only ensure the freshness of the air in the tent, but also have a dehumidification and dehumidification effect in the tent, thereby ensuring the normal living conditions of the isolated patients in the tent.

Description

Technical Field

[0001] The invention relates to the technical field of tent ventilation, in particular to a sensor-controlled ventilation device. Background Art

[0002] Infection control isolation tents are mainly used for the safe isolation of patients with major infectious diseases. They are suitable for the emergency disposal of new and sudden infectious diseases to prevent the further spread of the epidemic. They can be used in hospitals, health departments, and emergency infectious disease sites to clean and disinfect personnel to prevent further spread of contamination.

[0003] At present, for the ventilation and disinfection treatment of such isolation tents, the infection control ventilation equipment mainly disinfects and filters the air inside the tent and then discharges it, thereby blocking the spread of pathogens such as bacteria carried by patients in the tent to the outside, thereby reducing the risk of cross infection. For example, Chinese patent CN218379762U discloses a ventilation and disinfection device with a quick-installation function and an infection control isolation tent. The air inlet disinfection device and the air outlet disinfection device of the tent can be quickly installed on the isolation tent through a zipper installation, thereby improving the efficiency of tent installation.

[0004] However, during the use of infection-controlled ventilation equipment, in order to prevent polluted air in the tent from flowing to the clean area outside and reduce the risk of cross-infection, the amount of air sucked into the tent is usually made smaller than the amount of air discharged outside the tent, so that a negative pressure environment can be generated and maintained in the tent, that is, a negative pressure isolation tent. However, this also means that when the environment in which the tent is built is relatively humid, the humid gas in the external environment will gather into the tent with the flow of air, thereby forming a concentration of moisture and humidity in the tent, causing the environment inside the tent to be humid, which in turn affects the living conditions of the people isolated inside. Summary of the invention

[0005] The object of the present invention is to provide a sensor-controlled ventilation device to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: a sensory control ventilation device, comprising:

[0007] Two ventilation ducts are installed on the tent wall, and the two ventilation ducts are respectively equipped with blowing parts with opposite blowing directions, and the wind force in the air inlet duct is smaller than the wind force in the air outlet duct;

[0008] Two communication ports are provided on each of the two ventilation ducts, and a circulation pipe is connected between the two opposite communication ports of the two ventilation ducts, and a centrifugal hole is provided on the outer wall of the circulation pipe;

[0009] A switching part, used to enable the ventilation duct to communicate with only one of the communication ports, so that the two ventilation ducts can switch between the external circulation state and the internal circulation state;

[0010] The centrifugal part is arranged in the circulation pipe. In the state of internal circulation, the centrifugal part separates dry air and humid air by centrifugal means, and the humid air is discharged to the outside from the centrifugal hole, and the dry air flows back into the tent from the air inlet duct.

[0011] Preferably, the ventilation duct includes an outer tube portion and an inner tube portion which can be connected and combined with each other, and the outer tube portion is located on the outside of the tent wall, and the inner tube portion is located on the inside of the tent wall, the two connecting ports are both opened on the annular outer wall of the outer tube portion, and the blowing portion is installed in the inner tube portion.

[0012] Preferably, the switching part comprises a switching tube rotatably mounted in the outer tube part, the outer wall of the switching tube is connected with a right-angle tube, and the right-angle tube and the two connecting ports are located in the same plane;

[0013] The switching part also includes a central axis coaxially fixed at the axial center position of the switching tube, one end of the central axis passes through the outer wall of the outer tube part and is fixed with a passive rocker arm, the outer wall of the outer tube part is fixed with two stop pins for limiting the passive rocker arm, the outer wall of the central axis is also rotatably mounted with an active rocker arm, and the outer walls of the active rocker arm and the passive rocker arm are commonly connected with a tension spring, the outer wall of the outer tube part is provided with a slide groove, an electric slider capable of horizontal reciprocating sliding is installed in the slide groove, a sliding pin is fixed to the outer wall of the electric slider, and the outer wall of the active rocker arm is provided with a long groove for the sliding pin to penetrate and slide.

[0014] Preferably, a humidity sensing ring is slidably installed on the inner wall of the switching tube near the central axis at the air outlet duct position, and the humidity sensing ring is electrically connected to the detection circuit, and the detection circuit is electrically connected to the electric slider; a fixed shaft is fixed to the inner wall of the inner tube portion through a bracket, one end of the fixed shaft passes through the inner ring of the humidity sensing ring and is rotatably installed on the inner wall of the switching tube; a spiral groove is provided on the outer wall of the fixed shaft, and a pin rod inserted and slidably installed in the spiral groove is fixed to the inner ring wall of the humidity sensing ring; when the right-angle tube rotates and is connected with the circulation tube, the humidity sensing ring will move in the direction away from the central axis and be in a connecting position between the right-angle tube and the switching tube.

[0015] Preferably, the centrifugal part includes a rotating shaft which is coaxially installed in the circulation pipe through a bracket and can rotate, and a plurality of centrifugal blades distributed in a ring are fixed to the outer wall of the rotating shaft, and the positions of the centrifugal blades correspond to the positions of the centrifugal holes.

[0016] Preferably, transmission cones are rotatably installed on the inner walls of both sides of the outer tube portion through a transmission shaft, the conical surfaces of the two transmission cones are arranged opposite to each other, and one end of one of the transmission shafts passing through the outer tube portion is transmission-connected to the rotating shaft through a transmission belt assembly, and the other transmission shaft and the transmission cone can be elastically adjusted along the axial direction, and a servo motor for driving the transmission shaft to rotate is also installed on the outer wall of the outer tube portion, and an adjustment ring that can be slidably adjusted is installed on the inner wall of the outer tube portion through a connecting frame, and the adjustment ring is sleeved on the periphery of the transmission cone, and a plurality of mounting tubes distributed in an annular shape are rotatably installed on the inner ring wall of the adjustment ring, and a transmission rod is rotatably installed in each of the mounting tubes, and the friction wheels at both ends of the transmission rod respectively friction-transmit with the conical surfaces of the two transmission cones.

[0017] Preferably, the inner wall of the outer tube portion is provided with a transverse groove for sliding of the connecting frame of the adjustment ring, and the transverse groove is connected to the slide groove portion, the outer wall of the electric slider is provided with a deep hole, and an elastic pin is installed in the deep hole, and the outer wall of the connecting frame in the transverse groove is provided with a slot for embedding the elastic pin.

[0018] Preferably, the rotation angle of the passive swing arm is the same as the angle between the two connecting ports.

[0019] Preferably, a section of the switching tube can be inserted into the inner tube portion, the outer tube portion and the inner tube portion are sealed and connected via a flange, and a through hole with the same outer diameter as the switching tube and a through hole for the bolts on the flange to pass through are provided on the tent wall.

[0020] Preferably, a filter assembly and a disinfection assembly are also installed in the inner tube portion, and a moisture absorption portion is also installed in the inner tube portion located at the air inlet channel.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention switches the air circulation in the tent back and forth between external circulation and internal circulation through a switching part, which can not only ensure the freshness of the air in the tent, but also create and maintain a negative pressure environment in the tent to prevent the polluted air in the tent from flowing to the clean area outside, thereby reducing the risk of cross infection. At the same time, it can also dehumidify and remove moisture in the tent, thereby ensuring the normal living conditions of the isolated patients in the tent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the outer side of the tent wall of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the inner side of the tent wall of the present invention;

[0025] Figure 3 It is a schematic diagram of the state of the outer tube part and the structure thereon of the present invention in the state of external air circulation;

[0026] Figure 4 For the present invention Figure 3 Sectional view along AA;

[0027] Figure 5 For the present invention Figure 3 Sectional view along BB;

[0028] Figure 6 For the present invention Figure 3 Front section view of the state;

[0029] Figure 7 It is a cross-sectional enlarged stereoscopic view of the electric slider of the present invention;

[0030] Figure 8 It is an exploded cross-sectional view of the switching tube, the moisture sensing ring and the fixed shaft of the present invention;

[0031] Fig. 9 It is an exploded stereogram of the switching tube, the humidity sensing ring and the fixed shaft of the present invention;

[0032] Fig.10 It is an enlarged stereoscopic view of the transmission cone structure of the present invention;

[0033] Fig.11 It is an exploded stereogram of the circulation pipe and its internal structure of the present invention.

[0034] In the figure: 1. tent wall; 2. outer tube; 3. inner tube; 4. circulation tube; 5. connecting port; 6. central axis; 7. passive rocker; 8. active rocker; 9. tension spring; 10. slide groove; 11. electric slider; 12. slide pin; 13. stop pin; 14. switching tube; 15. fixed shaft; 16. humidity sensing ring; 17. rotating shaft; 18. centrifugal fan blade; 19. centrifugal hole; 20. sleeve; 21. right-angle tube; 22. transmission shaft; 23. transmission cone; 24. adjustment ring; 25. mounting tube; 26. transmission rod; 27. pin rod; 28. spiral groove; 29. ​​elastic pin; 30. card slot; 31. transmission belt assembly. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 11 The present invention provides a technical solution: a sensory control ventilation device, comprising:

[0037] Two ventilation ducts are installed on the tent wall 1, and the two ventilation ducts are respectively equipped with blowing parts with opposite blowing directions, and the wind force in the air inlet duct is smaller than the wind force in the air outlet duct;

[0038] Two communication ports 5 are provided on the two ventilation ducts, and a circulation pipe 4 is connected between the communication ports 5 of the two ventilation ducts. The outer wall of the circulation pipe 4 is provided with a centrifugal hole 19.

[0039] A switching part, used to enable the ventilation duct to communicate with only one of the communication ports 5, so that the two ventilation ducts can switch between the external circulation state and the internal circulation state;

[0040] The centrifugal part arranged in the circulation pipe 4 separates dry air and humid air by centrifugal means in the state of internal circulation, and the humid air is discharged to the outside from the centrifugal hole 19, and the dry air flows back into the tent from the air inlet duct.

[0041] During the use of the sensor-controlled ventilation device, the internal air is ventilated through the two ventilation ducts on the tent wall 1. When the wind directions of the blowing parts are opposite, the two ventilation ducts form an air inlet duct and an air outlet duct respectively. Since the wind force in the air inlet duct is less than the wind force in the air outlet duct, the air outlet volume in the tent will be greater than the air inlet volume, thereby creating and maintaining a negative pressure environment in the tent to prevent the polluted air in the tent from flowing to the clean area outside, thereby reducing the risk of cross infection.

[0042] During this process, the humid gas in the external environment will gather into the tent with the flow of air. In order to ensure a dry environment in the tent, the switching unit is used to switch the circulation state of the ventilation duct, as follows:

[0043] In the normal ventilation stage, the switching unit connects the ventilation duct with the connecting port 5 directly connected to the outside to form an air external circulation state, sucking fresh air from the outside into the tent and simultaneously discharging the dirty air inside to the outside, thereby increasing the oxygen content in the tent, reducing the carbon dioxide ratio, and keeping the air in the tent fresh;

[0044] After a certain period of external circulation, the switching part connects the ventilation duct with the connecting port 5 connected to the circulation pipe 4, so that the air discharged from the air outlet channel can flow back into the tent from the air inlet duct after passing through the circulation pipe 4, and the state of air internal circulation in the tent is switched. In this state, when the air passes through the circulation pipe 4, the centrifugal part separates the dry air and the humid air inside by centrifugal means, and the humid air will be thrown to the inner wall of the circulation pipe 4 due to its heavier weight under the action of centrifugal force, and discharged to the outside from the centrifugal hole 19, while the dry air will continue to flow with the air flow from the central part of the circulation pipe 4 until it flows back into the tent from the air inlet duct. In this way, the circulating pipe 4 is used to separate the outflowing air into dry and wet air, and the dry air flows back again, while the humid air is discharged outside the tent, thereby achieving the purpose of improving the dryness of the tent.

[0045] And it is worth mentioning that since the tent needs to maintain a negative pressure environment, part of the air still needs to be discharged outside the tent when the air circulates inside, rather than simply circulating inside the tent. Therefore, by separating and discharging the humid air, not only can the negative pressure environment in the tent be maintained, but also the moisture in the tent can be removed, thereby improving the dryness inside the tent.

[0046] In this way, the air circulation in the tent is switched back and forth between the external circulation and the internal circulation through the switching part, which not only ensures the freshness of the air in the tent, but also has a dehumidification and dehumidification effect in the tent, thereby ensuring the normal living conditions of the isolated patients in the tent.

[0047] In one of the more preferred embodiments, an implementation and installation method of a ventilation duct is provided;

[0048] The ventilation duct includes an outer tube portion 2 and an inner tube portion 3 which can be connected and combined with each other, and the outer tube portion 2 is located on the outer side of the tent wall 1, and the inner tube portion 3 is located on the inner side of the tent wall 1. Two connecting ports 5 are both opened on the annular outer wall of the outer tube portion 2, and the blowing portion is installed in the inner tube portion 3. A filtering component and a disinfection component are also installed in the inner tube portion 3, and a moisture absorption portion is also installed in the inner tube portion 3 located at the air inlet channel position.

[0049] See also Figure 1-2 The outer tube 2 and the inner tube 3 are connected by docking, which not only facilitates the installation and disassembly of the two, so that they can be used conveniently with the tent, but also reduces the space occupied and improves the work efficiency of temporary tent construction;

[0050] And during the above-mentioned ventilation process, the filtering component and the disinfection component installed in the inner tube part 3 can filter impurities, dust, etc. in the air, and can also disinfect and sterilize pathogens in the air. For example, ultraviolet disinfection and other methods can be used. The specific method can be achieved by using relevant existing technologies, which will not be repeated in this case. Similarly, in order to reduce the entry of external humid air in the state of external air circulation, a moisture absorption part can also be installed in the inner tube part 3 at the air inlet channel position to dry the air sucked into the tent, thereby further reducing the gathering speed of moisture in the tent.

[0051] In one of the more preferred embodiments, an implementation of a switching unit is provided;

[0052] The switching part includes a switching tube 14 rotatably mounted in the outer tube part 2, the outer wall of the switching tube 14 is connected with a right-angle tube 21, and the right-angle tube 21 and the two connecting ports 5 are located in the same plane;

[0053] The switching part also includes a central shaft 6 coaxially fixed at the axial position of the switching tube 14, one end of the central shaft 6 passes through the outer wall of the outer tube part 2 and is fixed with a passive rocker rod 7, the outer wall of the outer tube part 2 is fixed with two stop pins 13 for limiting the passive rocker rod 7, the outer wall of the central shaft 6 is also rotatably installed with an active rocker rod 8, and the outer walls of the active rocker rod 8 and the passive rocker rod 7 are commonly connected with a tension spring 9, the outer wall of the outer tube part 2 is provided with a slide groove 10, an electric slider 11 capable of horizontal reciprocating sliding is installed in the slide groove 10, a sliding pin 12 is fixed to the outer wall of the electric slider 11, and the outer wall of the active rocker rod 8 is provided with a long groove for the sliding pin 12 to penetrate and slide.

[0054] For details, please refer to Figure 3 and Figure 5 When the air circulation state is switched, the electric slider 11 will first move in the slide groove 10, and the sliding cooperation between the sliding pin 12 and the long groove on the active swing rod 8 will first drive the active swing rod 8 to swing. At the same time, the tension spring 9 is stretched and accumulates tension potential energy. During its rotation, the active swing rod 8 and the passive swing rod 7 are in the same straight line, which is the elongation limit of the tension spring 9. When the active swing rod 8 rotates and exceeds this limit, the tension of the tension spring 9 on the passive swing rod 7 will drive it to rotate to one side, and then the passive swing rod 7 will drive the central axis 6 to rotate, thereby driving the switching tube 14 and the right-angle tube 21 to rotate together, and then the right-angle tube 21 switches between the connecting port 5, completing the switching process, wherein Figure 3 The state shown is a state where the right-angle tube 21 is connected to the communication port 5 directly connected to the outside, that is, a schematic diagram of the air external circulation state. Figure 5 Also, here is the schematic diagram of this state;

[0055] In this way, by simultaneously moving the electric sliders 11 on the two outer tubes 2, the connecting ports 5 on the two outer tubes 2 can be switched, thereby switching from the state of external air circulation to the state of internal air circulation, and vice versa.

[0056] Among them, it is worth noting that due to the limiting effect of the stop pin 13, the rotation angle of the passive rocker arm 7 is relatively fixed and is the same as the angle between the two connecting ports 5. This can ensure that when the passive rocker arm 7 is rotated to both sides, the right-angle tube 21 can be connected to the two connecting ports 5 respectively, thereby ensuring the air flow.

[0057] In one of the preferred embodiments, an implementation method for monitoring the humidity in the air is provided, and the switching between the above two states is automatically controlled according to the change of humidity, and the specific method is as follows:

[0058] A humidity sensing ring 16 is slidably installed on the inner wall of the switching tube 14 near the central axis 6 at the air outlet duct position, and the humidity sensing ring 16 is electrically connected to the detection circuit, and the detection circuit is electrically connected to the electric slider 11. A fixed shaft 15 is fixed to the inner wall of the inner tube 3 through a bracket, and one end of the fixed shaft 15 passes through the inner ring of the humidity sensing ring 16 and is rotatably installed on the inner wall of the switching tube 14. A spiral groove 28 is provided on the outer wall of the fixed shaft 15, and a pin rod 27 inserted and slidably installed in the spiral groove 28 is fixed to the inner ring wall of the humidity sensing ring 16. When the right-angle tube 21 rotates and is connected to the circulation tube 4, the humidity sensing ring 16 will move in the direction away from the central axis 6 and be in a connecting position between the right-angle tube 21 and the switching tube 14.

[0059] See also Figure 5 , Figure 8 and Fig. 9 In the state of external circulation, the inner tube part 3 at the position of the air outlet channel will exhaust air outwards under the action of the internal blast part, and then the air will be discharged from the switching tube 14, the right-angle tube 21 and the connecting port 5. When the air flows from the switching tube 14 to the right-angle tube 21, the humidity sensing ring 16 will adsorb the moisture in the air. The humidity sensing ring 16 is made of a humidity sensing material. Its adsorption of water vapor in the air will cause its resistivity and resistance value to change. The moisture content in the air can be inferred by the change in the resistance value of the humidity sensing ring 16 using the detection circuit, thereby judging the humidity state of the air. When the detected air humidity exceeds a preset value, the detection circuit can send an electrical signal to the electric slider 11 to control its movement and complete the switching between the above states, switching to the state of air internal circulation;

[0060] As can be seen from the above content, the switching between the two states is completed by the rotation between the switching tube 14 and the right-angle tube 21 to connect the connecting port 5. Therefore, when the switching tube 14 rotates, the humidity sensing ring 16 will be driven to rotate together. Through the cooperation between the pin rod 27 on its inner ring wall and the spiral groove 28 on the fixed shaft 15, the humidity sensing ring 16 can be moved in the direction away from the central axis 6 during the switching process of the switching tube 14 until it moves to the connecting position of the right-angle tube 21 and the switching tube 14. The purpose of this is that after switching to air internal circulation, the circulating air will be separated into dry and wet in the circulation pipe 4, and the dry air will gradually dry the air in the tent after reflux, so that the air will evaporate and take away the moisture adsorbed on the humidity sensing ring 16 when passing through the switching tube 14 and the right-angle tube 21, and the humidity sensing ring 16 will restore its resistivity and resistance value to the previous state after losing moisture. In this way, the electric slider 11 can be controlled by the detection circuit to reset, so that the state is switched again, and the humidity sensing ring 16 is also reset;

[0061] In this way, the switching between the two states can be automatically controlled by real-time monitoring of the humidity of the circulating air, so as to achieve the purpose of maintaining the dryness of the air in the tent;

[0062] It is worth noting that, see Figure 5 When the air is circulated externally, the humidity sensing ring 16 is not at the connecting position between the right-angle tube 21 and the switching tube 14. This will cause an eddy current to be generated at the humidity sensing ring 16 when the air flows from the switching tube 14 to the right-angle tube 21, thereby making it easier for the moisture in the air to be adsorbed by the humidity sensing ring 16, thereby ensuring the accuracy and punctuality of the detection results, and being able to timely monitor when the air humidity exceeds the preset value. After switching to the internal air circulation, the humidity sensing ring 16 is at the connecting position between the right-angle tube 21 and the switching tube 14. This will reduce the formation of eddy currents at the humidity sensing ring 16, thereby ensuring that the moisture adsorbed in the humidity sensing ring 16 can evaporate in time, thereby completing the reset switching of the subsequent state.

[0063] In one of the more preferred embodiments, an implementation of a centrifugal part is provided;

[0064] The centrifugal part includes a rotating shaft 17 which is coaxially installed in the circulation pipe 4 through a bracket and can rotate. A plurality of centrifugal blades 18 distributed in an annular shape are fixed to the outer wall of the rotating shaft 17, and the positions of the centrifugal blades 18 correspond to the positions of the centrifugal holes 19.

[0065] See also Figure 4 or Figure 6When the air is switched to internal circulation, the air will flow through the circulation pipe 4, and in the process of air flow, the rotating shaft 17 will rotate under the drive of the external structure, and drive the centrifugal blades 18 to rotate, so as to exert a centrifugal effect on the flowing air, and the heavier humid air will be thrown to the centrifugal position and discharged from the centrifugal hole 19, while the lighter dry air will flow back to the air inlet channel from the central part;

[0066] In this way, the dry and wet separation of air can be completed by centrifugal means. A sleeve 20 can be installed on the outer wall of the circulation pipe 4, and the humid air will be discharged to one side from the sleeve 20. A jet head can also be installed on one side of the sleeve 20, and the jet head is connected to an external jet device. The airflow ejected by the jet head can assist the flow of humid air in the sleeve 20. Whether to install it depends on the specific situation.

[0067] In one of the more preferred embodiments, an implementation method capable of driving the rotating shaft 17 to rotate is provided;

[0068] The inner walls on both sides of the outer tube 2 are rotatably mounted with transmission cones 23 through a transmission shaft 22, the conical surfaces of the two transmission cones 23 are arranged opposite to each other, and one end of one of the transmission shafts 22 passing through the outer tube 2 is connected to the rotating shaft 17 through a transmission belt assembly 31, and the other transmission shaft 22 and the transmission cone 23 can be elastically adjusted along the axial direction. A servo motor for driving the transmission shaft 22 to rotate is also installed on the outer wall of the outer tube 2, and an adjustment ring 24 that can be slidably adjusted is installed on the inner wall of the outer tube 2 through a connecting frame, and the adjustment ring 24 is sleeved on the periphery of the transmission cone 23, and a plurality of annularly distributed mounting tubes 25 are rotatably mounted on the inner ring wall of the adjustment ring 24, and a transmission rod 26 is rotatably mounted in each mounting tube 25, and the friction wheels at both ends of the transmission rod 26 are respectively frictionally driven with the conical surfaces of the two transmission cones 23.

[0069] For details, please refer to Figure 6 and Fig.10 After switching to the air internal circulation, the servo motor will drive the transmission shaft 22 connected to it to rotate, and drive the transmission cone 23 thereon to rotate together, that is, Figure 6 The transmission cone 23 on the left side rotates, and under the friction transmission of the transmission rod 26, the transmission cone 23 on the right side and the transmission shaft 22 will also rotate accordingly, and then drive the rotating shaft 17 to rotate under the transmission of the transmission belt assembly 31, thereby achieving the above-mentioned purpose of separating the dry and wet air;

[0070] The transmission belt assembly 31 can be driven by a pulley or a sprocket, and an external wrapping shell can be set between the circulation pipe 4 and the outer tube part 2 to hide the transmission belt assembly 31, while also improving the airtightness of the circulation pipe 4.

[0071] Among them, by sliding the adjustment ring 24 left and right, the friction position of the friction wheels at both ends of the transmission rod 26 and the two transmission cones 23 can be controlled, and then the degree of centrifugation can be changed. In the process of dry and wet separation, the air in the tent will reduce its internal humidity as the dry air flows back. Therefore, in the early stage of air circulation, the humidity of the air is the highest. At this time, the adjustment ring 24 is located at the leftmost position, that is, Figure 6 In the state shown, the transmission cone 23 on the left and the transmission cone 23 on the right are in a mode where the large wheel drives the small wheel to rotate, so the transmission cone 23 on the right and its rotating shaft 17 are at the fastest rotation speed to ensure a high degree of dry-wet separation in the initial stage. At this time, most of the humid air will be discharged through the centrifugal hole 19, and as the dry-wet separation proceeds and the dry air flows back, the humidity of the air decreases. At this time, the adjustment ring 24 will move to the right, thereby reducing the transmission ratio between the transmission cones 23 on the left and right sides, thereby reducing the rotation speed of the rotating shaft 17, and at the same time increasing the proportion of the return air in the tent, until the adjustment ring 24 moves to the far right, at which time the air humidity in the tent is also reduced to the minimum, and then the switching between the above states is completed;

[0072] In this way, the centrifugal degree of the air can be dynamically controlled by moving the adjustment ring 24, so that it can be reduced as the air humidity decreases, thereby ensuring the air reflux in the tent, achieving the effect of dynamic adjustment, and after the state is switched, the adjustment ring 24 will also be reset to prepare for the next adjustment in advance.

[0073] In one of the more preferred embodiments, an implementation method capable of controlling the movement and adjustment of the adjustment ring 24 is provided;

[0074] The inner wall of the outer tube portion 2 is provided with a transverse groove for sliding the connecting frame of the adjustment ring 24, and the transverse groove is partially connected to the slide groove 10. The outer wall of the electric slider 11 is provided with a deep hole, and an elastic pin 29 is installed in the deep hole. The outer wall of the connecting frame in the transverse groove is provided with a card slot 30 for the elastic pin 29 to be embedded.

[0075] See also Figure 3 , Figure 7 and Fig.10As can be seen from the above content, when the electric slider 11 slides in the slide groove 10, it will drive the active swing rod 8 to rotate until the passive swing rod 7 is driven to swing through the tension spring 9 to complete the state switching, wherein the passive swing rod 7 will have a delayed rotation process, during which the elastic pin 29 on the electric slider 11 will be embedded in the card slot 30 on the connecting frame when it slides, so that the electric slider 11 can drive the connecting frame and the adjustment ring 24 to move when it moves, so that the above-mentioned centrifugal control process is carried out before the state switching, after the electric slider 11 drives the adjustment ring 24 to move to the end of the transverse groove, the elastic pin 29 is disengaged from the card slot 30, and the dynamic control ends at this time, and the state switching will be completed as the electric slider 11 continues to move;

[0076] In this way, when the electric slider 11 moves, the adjustment ring 24 will be driven to move in advance, so that the centrifugal control process is carried out before the state is switched, which can ensure the degree of dry and wet separation of the air.

[0077] Similarly, the reset movement of the electric slider 11 can also drive the adjustment ring 24 to reset in the opposite direction, so as to prepare for subsequent regulation.

[0078] In one of the more preferred embodiments, a section of the switching tube 14 can be inserted into the inner tube portion 3, the outer tube portion 2 and the inner tube portion 3 are sealed and connected by a flange, and a through hole with the same outer diameter as the switching tube 14 and a through hole for the bolts on the flange to pass through are opened on the tent wall 1.

[0079] See also Figure 5 The flange sealing connection method not only facilitates the connection and positioning, but also avoids opening an excessively large through hole on the tent wall 1, thereby ensuring the integrity of the tent wall 1.

[0080] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensory control ventilation device, characterized in that: include: Two ventilation ducts are installed on the tent wall (1), and the two ventilation ducts are respectively provided with blowing parts with opposite blowing directions, and the wind force in the air inlet duct is smaller than the wind force in the air outlet duct; Two communication ports (5) are provided on each of the two ventilation ducts, and a circulation pipe (4) is connected between the communication ports (5) opposite to each other in the two ventilation ducts, and a centrifugal hole (19) is provided on the outer wall of the circulation pipe (4); A switching part, used to enable the ventilation duct to communicate with only one of the communication ports (5), so that the two ventilation ducts can switch between an external circulation state and an internal circulation state; The centrifugal part is arranged in the circulation pipe (4). In the state of internal circulation, the centrifugal part separates dry air and moist air by centrifugal means, and the moist air is discharged to the outside from the centrifugal hole (19), and the dry air flows back into the tent from the air inlet duct.

2. The sensor-controlled ventilation device according to claim 1, characterized in that: The ventilation duct comprises an outer tube portion (2) and an inner tube portion (3) which can be connected and combined with each other, wherein the outer tube portion (2) is located on the outside of the tent wall (1), and the inner tube portion (3) is located on the inside of the tent wall (1), and the two connecting ports (5) are both provided on the annular outer wall of the outer tube portion (2), and the blowing portion is installed in the inner tube portion (3).

3. The sensor-controlled ventilation device according to claim 2, characterized in that: The switching portion comprises a switching tube (14) rotatably mounted in the outer tube portion (2); the outer wall of the switching tube (14) is connected to a right-angle tube (21), and the right-angle tube (21) and the two communication ports (5) are located in the same plane; The switching part also includes a central shaft (6) coaxially fixed at the axial center position of the switching tube (14); one end of the central shaft (6) passes through the outer wall of the outer tube (2) and is fixed with a passive rocker (7); the outer wall of the outer tube (2) is fixed with two stop pins (13) for limiting the passive rocker (7); the outer wall of the central shaft (6) is also rotatably mounted with an active rocker (8); and the outer walls of the active rocker (8) and the passive rocker (7) are connected with a tension spring (9); the outer wall of the outer tube (2) is provided with a slide groove (10); an electric slider (11) capable of horizontal reciprocating sliding is installed in the slide groove (10); a slide pin (12) is fixed to the outer wall of the electric slider (11); and the outer wall of the active rocker (8) is provided with a long groove for the slide pin (12) to penetrate and slide.

4. The sensor-controlled ventilation device according to claim 3, characterized in that: A humidity sensing ring (16) is slidably mounted on the inner wall of the switching tube (14) near the central axis (6) at the air outlet duct position, and the humidity sensing ring (16) is electrically connected to the detection circuit, and the detection circuit is electrically connected to the electric slider (11). A fixed shaft (15) is fixed to the inner wall of the inner tube portion (3) through a bracket, and one end of the fixed shaft (15) passes through the inner ring of the humidity sensing ring (16) and is rotatably mounted on the inner wall of the switching tube (14). A spiral groove (28) is formed on the outer wall of the fixed shaft (15), and a pin rod (27) inserted into and slidably mounted in the spiral groove (28) is fixed to the inner ring wall of the humidity sensing ring (16). When the right-angle tube (21) rotates and is connected to the circulation tube (4), the humidity sensing ring (16) moves in a direction away from the central axis (6) and is placed in a connection position between the right-angle tube (21) and the switching tube (14).

5. The sensor-controlled ventilation device according to claim 3, characterized in that: The centrifugal part comprises a rotating shaft (17) which is coaxially mounted in a circulation pipe (4) through a bracket and is rotatable, and a plurality of centrifugal blades (18) distributed in an annular shape are fixed to the outer wall of the rotating shaft (17), and the positions of the centrifugal blades (18) correspond to the positions of the centrifugal holes (19).

6. The sensor-controlled ventilation device according to claim 5, characterized in that: The inner walls of both sides of the outer tube (2) are rotatably mounted with transmission cones (23) via a transmission shaft (22), the cone surfaces of the two transmission cones (23) are arranged opposite to each other, and one end of one of the transmission shafts (22) passing through the outer tube (2) is connected to the rotating shaft (17) via a transmission belt assembly (31), and the other transmission shaft (22) and the transmission cone (23) can be elastically adjusted in the axial direction, and the outer wall of the outer tube (2) is also mounted with a transmission shaft (23) for driving the transmission shaft (23). 2) a servo motor for rotation, the inner wall of the outer tube (2) is provided with a slidably adjustable adjustment ring (24) through a connecting frame, and the adjustment ring (24) is sleeved on the periphery of a transmission cone (23), a plurality of annularly distributed mounting tubes (25) are rotatably mounted on the inner ring wall of the adjustment ring (24), a transmission rod (26) is rotatably mounted in each of the mounting tubes (25), and friction wheels at both ends of the transmission rod (26) are respectively frictionally driven with the conical surfaces of the two transmission cones (23).

7. The sensor-controlled ventilation device according to claim 6, characterized in that: The inner wall of the outer tube (2) is provided with a transverse groove for sliding the connecting frame of the adjusting ring (24), and the transverse groove is partially connected to the slide groove (10). The outer wall of the electric slider (11) is provided with a deep hole, and an elastic pin (29) is installed in the deep hole. The outer wall of the connecting frame in the transverse groove is provided with a slot (30) for embedding the elastic pin (29).

8. The sensor-controlled ventilation device according to claim 3, characterized in that: The rotation angle of the passive swing rod (7) is the same as the included angle between the two communication ports (5).

9. The sensor-controlled ventilation device according to claim 3, characterized in that: A section of the switching tube (14) can be inserted into the inner tube portion (3), the outer tube portion (2) and the inner tube portion (3) are sealed and connected via a flange, and a through hole having the same outer diameter as the switching tube (14) and a through hole through which bolts on the flange can pass are provided on the tent wall (1).

10. The sensor-controlled ventilation device according to any one of claims 2 to 9, characterized in that: A filtering component and a disinfection component are also installed in the inner tube part (3), and a moisture absorption part is also installed in the inner tube part (3) located at the air inlet channel.

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