Lifting type thin ventilation clerestory

Abstract

The invention relates to the technical field of ventilation clerestory, and discloses a lifting type thin ventilation clerestory which comprises a center frame installed on the top of a plant, the upper end of the center frame is located outside the plant, and the side wall of the end, located outside the plant, of the center frame is fixedly connected with a plurality of connecting columns distributed at equal intervals. The other ends of the connecting columns are fixedly connected with a shell, the shell is suspended above the plant, daylighting openings are formed in the four faces of the upper end of the shell in a penetrating mode, a supporting plate is fixedly connected into the lower end of the center frame, the upper surface of the supporting plate is connected with a lifting mechanism and a plurality of auxiliary ventilation mechanisms, and the output end of the lifting mechanism is connected with a sealing plate. According to the lifting type thin ventilation clerestory, the lifting height of the sealing plate is controlled through the lifting mechanism, the area of the ventilation opening can be flexibly adjusted, and in the high-temperature season or when the indoor hot-pressing effect is remarkable, the opening area is increased to improve the ventilation efficiency; otherwise, the opening is reduced in low-temperature or windy and rainy days, and ventilation and heat preservation requirements are balanced.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation air towers, in particular to a lifting thin ventilation air tower. Background Art

[0002] A thin-film ventilation roof, also known as a thin-film ventilation skylight or thin-film roof ventilator, is a device installed on a building's roof for natural ventilation. It is designed to improve indoor air quality, regulate indoor temperature, and remove heat, moisture, and pollutants by utilizing natural wind and temperature differences to promote indoor air circulation.

[0003] The patent currently announced with the number CN220266971U discloses a thin ventilation air tower, including two first baffles, two first fixing rods are fixed between the two first baffles, and two first sliding grooves are provided at the top of the two first fixing rods. The beneficial effect of the ventilation air tower is: the two second baffles are close to each other, so that the blocking range of the two second baffles is reduced, thereby expanding the area of ​​the ventilation opening, facilitating the acceleration of the air exchange speed in the factory building and improving the lighting effect. The waterproof motor is started, and the transmission shaft of the waterproof motor drives the reciprocating screw to rotate, thereby driving the scraper to reciprocate, so that the snow on the second baffle can be repeatedly scraped off, and the snow enters the water tank through the gap between the second waterproof plates. Because the temperature of the space below the second baffle is higher, the snow can melt quickly and be discharged from the ventilation air tower through the outlet pipe, ensuring the ventilation efficiency of the ventilation air tower and improving the rain and snow protection effect.

[0004] However, the above ventilation tower still has the following problems during actual use:

[0005] In industrial plant ventilation systems, traditional ventilation towers typically utilize fixed-size structures, with the opening area between the tower base and the plant roof unadjustable. This static structure results in ventilation efficiency being highly dependent on external environmental conditions. In high-temperature summer conditions, when the temperature difference between indoor and outdoor temperatures is significant and thermal pressure drives air upward, the fixed opening's ventilation cross-sectional area cannot dynamically adapt to the thermal pressure demand, resulting in low ventilation efficiency. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a lifting thin ventilation tower, which can change the lifting height of the sealing plate according to different seasons or different weather to achieve more efficient ventilation.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lifting thin ventilation air building, comprising a central frame installed on the top of a factory building, the upper end of the central frame is located outside the factory building, and the side wall of the central frame at one end outside the factory building is fixedly connected to a number of equidistantly distributed connecting columns, the other ends of the several connecting columns are also fixedly connected to an outer shell, the outer shell is suspended above the factory building, and light openings are opened on all four sides of the upper end of the outer shell, the interior of the lower end of the central frame is fixedly connected to a support plate, the upper surface of the support plate is connected to a lifting mechanism and several auxiliary ventilation mechanisms, the output end of the lifting mechanism is connected to a sealing plate, the upper surface of the sealing plate is fixedly connected to several supporting frames, the upper ends of the several supporting frames are also fixedly connected to the ceiling, the bottom surface of the ceiling is fixedly connected to a connecting frame, the connecting frame is placed on the upper surface of the outer shell, and the bottom surface of the connecting frame is fixedly connected to side glass, the side glass is located in the four light openings, one side of the upper end of the central frame is connected to a wind speed adjustment mechanism for changing the wind speed of several auxiliary ventilation mechanisms, and the other end of the wind speed adjustment mechanism is connected to the sealing plate.

[0008] Furthermore, the lifting mechanism includes a plurality of electric push rods, the outer walls of the plurality of electric push rods are fixedly connected to the upper surface of the support plate, the output ends of the plurality of electric push rods are fixedly connected to the bottom surface of the sealing plate, and the plurality of electric push rods are equidistantly distributed.

[0009] Furthermore, a transparent guide plate is fixedly connected to the bottom surface of the sealing plate, and a plurality of receiving openings are opened on the bottom surface of the transparent guide plate, and a plurality of electric push rods are respectively located in the plurality of receiving openings.

[0010] Furthermore, a sliding opening is provided on the inner side of the upper end of the shell, and the side glass is slidably connected to the sliding opening.

[0011] Furthermore, L-shaped blocks are fixedly connected to the four corners of the inner side of the shell, and both ends of the L-shaped blocks are rotatably connected to winding rods. The outer walls of the middle parts of the four winding rods are fixedly connected to screens, and the other ends of the four screens are fixedly connected to connecting plates. The side walls of the four connecting plates are respectively fixedly connected to the four sides of the lower end of the side glass, and the four screens and four connecting plates are respectively aligned with the four light openings.

[0012] Furthermore, the four sides of the inner side of the shell are fixedly connected with storage boxes, the interiors of the four storage boxes are provided with storage cavities, the four meshes are respectively located in the four storage cavities, and the four connecting plates are located outside the storage boxes.

[0013] Furthermore, the outer walls of both ends of the four winding rods are fixedly connected with coil springs, and the other ends of the eight coil springs are fixedly connected with positioning blocks. The side walls of the eight positioning blocks are respectively fixedly connected to the two ends of the four L-shaped blocks, and the two coil springs on the same winding rod have the same winding direction as the gauze.

[0014] Furthermore, the upper surfaces of the four storage boxes are fixedly connected to a U-shaped frame, the inner sides of both ends of the U-shaped frame are provided with sliding grooves, both ends of the connecting plate are fixedly connected to sliders, and the two sliders are slidably connected to the two sliding grooves respectively.

[0015] Furthermore, the auxiliary ventilation mechanism includes an exhaust motor, a transmission belt, an L-shaped frame, two pulleys, two rotating rods and two exhaust fan blades. The upper end of the L-shaped frame is fixedly connected to the bottom surface of the support plate, the lower end of the L-shaped frame is fixedly connected to the outer wall of the exhaust motor, the output shaft of the exhaust motor is fixedly connected to the lower end of one of the rotating rods, the two rotating rods are arranged in parallel, and the upper ends of the two rotating rods respectively pass through the two pulleys and the support plate and are respectively fixedly connected to the central axes of the two exhaust fan blades, the two rotating rods are respectively fixedly connected to the two pulleys, and the two rotating rods are both rotatably connected to the support plate, and the transmission belt is sleeved and slidably connected to the outside of the two pulleys.

[0016] Furthermore, the wind speed adjustment mechanism includes a trigger block, a vertical plate and several self-resetting switches. The trigger block is fixedly connected to the side wall of the sealing plate, the lower end of the vertical plate is fixedly connected to the side wall of the upper end of the center frame, the upper end of the vertical plate is fixedly connected to the several self-resetting switches, and the several self-resetting switches are equidistantly distributed, and the trigger block contacts the several self-resetting switches in turn.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This type of lifting thin ventilation tower controls the lifting height of the sealing plate through a lifting mechanism, and can flexibly adjust the ventilation area. In hot seasons or when the indoor thermal pressure effect is significant, the opening area is increased to improve ventilation efficiency; on the contrary, in low temperatures or windy and rainy weather, the opening is reduced to balance ventilation and insulation needs.

[0019] 2. This type of lifting thin ventilation tower can automatically adjust the speed of the auxiliary ventilation mechanism according to the height of the sealing plate by setting a wind speed adjustment mechanism. The larger the opening, the higher the speed of the exhaust fan blades, achieving a dynamic match between ventilation intensity and opening area, avoiding energy waste;

[0020] 3. This type of lifting thin ventilation air tower has a screen that unfolds synchronously with the side glass, covering the light opening, effectively preventing birds and insects from entering the internal space of the equipment and reducing maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall appearance of the present invention from another perspective;

[0023] Figure 3 This is a schematic diagram of the overall appearance of the present invention after the roof and side glass are raised;

[0024] Figure 4 Schematic diagram of the explosion of the roof, side glass and sealing plate components of the present invention;

[0025] Figure 5 Detailed connection diagram of the center frame, housing, lifting mechanism and other components of the present invention;

[0026] Figure 6 It is a detailed connection diagram of the central frame, outer shell and wind speed adjustment mechanism of the present invention;

[0027] Figure 7 Detailed connection diagram of the support plate, lifting mechanism, auxiliary ventilation mechanism and other components of the present invention;

[0028] Figure 8 For the present invention Figure 7 A magnified schematic diagram of point A in the middle;

[0029] Figure 9 Detailed connection diagram of the storage box, U-shaped frame, and winding rod of the present invention;

[0030] Figure 10 For the present invention Figure 9 Exploded diagram of each component;

[0031] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of point B in the middle.

[0032] In the figure: 1. Shell; 2. Light opening; 3. Connecting frame; 4. Ceiling; 5. Side glass; 6. Center frame; 7. Connecting column; 8. Support plate; 9. Transparent guide plate; 10. Electric push rod; 11. Exhaust motor; 12. Storage box; 13. U-shaped frame; 14. Storage opening; 15. Support frame; 16. Trigger block; 17. L-shaped block; 18. Slide; 19. Vertical plate; 20. Self-reset switch; 21. Drive belt; 22. Pulley; 23. Rotating rod; 24. Exhaust fan blade; 25. L-shaped frame; 26. Winding rod; 27. Coil spring; 28. Connecting plate; 29. ​​Slide groove; 30. Screen; 31. Storage cavity; 32. Positioning block; 33. Slider; 34. Sealing plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] See also Figures 1-11A lifting thin ventilation air building includes a central frame 6 installed on the top of the factory building. The upper end of the central frame 6 is located outside the factory building, and the side wall of the central frame 6 at one end outside the factory building is fixedly connected to a number of equally distributed connecting columns 7. The other ends of the several connecting columns 7 are also fixedly connected to a shell 1. The shell 1 is suspended above the factory building. The four sides of the upper end of the shell 1 are penetrated by light openings 2. The inner part of the lower end of the central frame 6 is fixedly connected to a support plate 8. The upper surface of the support plate 8 is connected to a lifting mechanism and a number of auxiliary ventilation mechanisms. The output end of the mechanism is connected to a sealing plate 34, and the upper surface of the sealing plate 34 is fixedly connected to several support frames 15. The upper ends of several support frames 15 are also fixedly connected to the ceiling 4, and the bottom surface of the ceiling 4 is fixedly connected to a connecting frame 3. The connecting frame 3 is placed on the upper surface of the outer shell 1, and the bottom surface of the connecting frame 3 is fixedly connected to the side glass 5. The side glass 5 is located in the four skylights 2. One side of the upper end of the central frame 6 is connected to a wind speed adjustment mechanism for changing the wind speed of several auxiliary ventilation mechanisms, and the other end of the wind speed adjustment mechanism is connected to the sealing plate 34.

[0035] like Figures 1 to 11 As shown, when installing the lifting thin ventilation tower of the present invention, first, a mounting opening that matches the size of the center frame 6 is opened on the top of the factory building, and then the lower end of the center frame 6 (the part below the connecting column 7) is fixed in the mounting opening of the factory building by bolts or other fasteners, and sealed with sealing materials such as sealing rings to prevent water leakage;

[0036] Then, according to the position of each component (such as Figure 1-Figure 3 After all the debugging is completed, the machine can be put into normal use;

[0037] During use, the hot air in the factory will naturally rise, then flow out through the openings exposed by the sealing plate 34, and drift into the external environment through the openings of the plurality of light openings 2. Similarly, during use, due to the different temperatures in the external environment, the heat generated inside the factory will also vary due to production reasons, so it is necessary to adjust the size of the opening exposed by the sealing plate 34.

[0038] When the opening needs to be increased, the staff turns on the lifting mechanism through a remote controller (of course, a humidity sensor or temperature sensor can also be set under the support plate 8 for detection, and automatically adjust when a certain value is reached. This adjustment method can be programmed in advance by a PLC controller. This is a prior art and will not be described in detail).

[0039] After the lifting mechanism is activated, its output end extends outward, and when extending, it can push the sealing plate 34 upward. After the sealing plate 34 rises, it will push the roof 4 up together through the support frames 15, thereby bringing the connecting frame 3 at the bottom of the roof 4 up together;

[0040] As the connecting frame 3 rises, the side glass 5 at the bottom of the connecting frame 3 will rise together, thereby gradually exposing the light opening 2, and then the rising hot air flow inside the central frame 6 can be discharged from the light opening 2 to the external environment;

[0041] In addition, during the rising process of the sealing plate 34, the sealing plate 34 will also trigger the wind speed regulating mechanism, which will start after being triggered and turn on the auxiliary ventilation mechanism, thereby extracting hot air from the interior of the factory building with the help of the auxiliary ventilation mechanism to accelerate the exhaust from the central frame 6 and the light opening 2;

[0042] It should be noted here that: by arranging side glass 5 under the connecting frame 3, the overall lighting height can be increased after the connecting frame 3 and the side glass 5 are raised, and the external sunlight can be irradiated into the factory from the opening of the center frame 6 to improve the lighting of the factory.

[0043] As a preferred solution of the present invention, the lifting mechanism includes several electric push rods 10, the outer walls of the several electric push rods 10 are fixedly connected to the upper surface of the support plate 8, the output ends of the several electric push rods 10 are fixedly connected to the bottom surface of the sealing plate 34, and the several electric push rods 10 are equidistantly distributed.

[0044] More specifically, when the center frame 6 needs to be opened or closed, it is only necessary to turn on the electric push rod 10 through a remote controller (or automatically through a PLC controller), and then the output end of the electric push rod 10 can be controlled to rise and fall, so that the sealing plate 34 located at the output end of the electric push rod 10 can be raised and lowered, and then the opening can be opened or closed when the sealing plate 34 is raised and lowered.

[0045] As a preferred solution of the present invention, the bottom surface of the sealing plate 34 is fixedly connected to a transparent guide plate 9 , and the bottom surface of the transparent guide plate 9 is provided with a plurality of receiving openings 14 , and the plurality of electric push rods 10 are respectively located in the plurality of receiving openings 14 .

[0046] More specifically, by providing a transparent guide plate 9, it is possible to avoid obstruction of light coming in from the side glass 5 and the skylight 2; in addition, by setting the sealing plate 34 to be opaque, the operator can also look up to see if there is any light coming in to determine whether the sealing plate 34 is tightly closed.

[0047] As a preferred solution of the present invention, a sliding opening 18 is provided on the inner side of the upper end of the housing 1 , and the side glass 5 is slidably connected to the sliding opening 18 .

[0048] More specifically, by providing the sliding opening 18, the stability of the side glass 5 when sliding up and down can be improved, while providing support for the side glass 5 and shielding the four corners of the side glass 5 to prevent slipping, thereby increasing the service life.

[0049] As a preferred solution of the present invention, the four corners on the inner side of the outer shell 1 are fixedly connected with L-shaped blocks 17, and both ends of the L-shaped block 17 are rotatably connected with the winding rod 26. The outer walls of the middle parts of the four winding rods 26 are fixedly connected with screens 30, and the other ends of the four screens 30 are fixedly connected with connecting plates 28. The side walls of the four connecting plates 28 are respectively fixedly connected to the four sides of the lower end of the side glass 5, and the four screens 30 and the four connecting plates 28 are respectively aligned with the four light openings 2.

[0050] More specifically, by providing an L-shaped block 17 and a winding rod 26, and providing a gauze 30 and a connecting plate 28 on the winding rod 26, when the side glass 5 rises, the side glass 5 will pull the connecting plate 28 up together, and then the rising connecting plate 28 will gradually stretch the gauze 30, and then a protection can be set at the light opening 2 exposed due to the rising of the side glass 5 to prevent birds from taking the opportunity to fly into the space between the ceiling 4, the outer shell 1, the center frame 6 and the sealing plate 34.

[0051] As a preferred solution of the present invention, storage boxes 12 are fixedly connected to the four sides of the inner side of the outer shell 1, and storage cavities 31 are opened inside the four storage boxes 12. The four meshes 30 are respectively located in the four storage cavities 31, and the four connecting plates 28 are all located outside the storage boxes 12.

[0052] More specifically, by providing the storage box 12 , the gauze 30 can be stored.

[0053] As a preferred solution of the present invention, the outer walls of both ends of the four winding rods 26 are fixedly connected with coil springs 27, and the other ends of the eight coil springs 27 are fixedly connected with positioning blocks 32. The side walls of the eight positioning blocks 32 are respectively fixedly connected to the two ends of the four L-shaped blocks 17, and the two coil springs 27 on the same winding rod 26 have the same winding direction as the gauze 30.

[0054] More specifically, by providing a coil spring 27 and a positioning block 32, the coil spring 27 can change its shape when the winding rod 26 rotates, and when the side glass 5 drops, the coil spring 27 can automatically retract the mesh 30 into the storage cavity 31 of the storage box 12, and the retracted mesh 30 is not prone to entanglement and looseness.

[0055] As a preferred solution of the present invention, the upper surfaces of the four storage boxes 12 are fixedly connected to a U-shaped frame 13, and the inner sides of both ends of the U-shaped frame 13 are provided with sliding grooves 29, and both ends of the connecting plate 28 are fixedly connected to sliders 33, and the two sliders 33 are slidably connected to the two sliding grooves 29 respectively.

[0056] More specifically, by providing a U-shaped frame 13 and a slider 33, the sliding trajectory of the screen 30 can be limited when the connecting plate 28 follows the rise and fall of the side glass 5, thereby avoiding slippage due to some reasons (such as wind), thereby affecting the later collection into the storage cavity 31 of the storage box 12.

[0057] As a preferred solution of the present invention, the auxiliary ventilation mechanism includes an exhaust motor 11, a transmission belt 21, an L-shaped frame 25, two pulleys 22, two rotating rods 23 and two exhaust fan blades 24, the upper end of the L-shaped frame 25 is fixedly connected to the bottom surface of the support plate 8, the lower end of the L-shaped frame 25 is fixedly connected to the outer wall of the exhaust motor 11, the output shaft of the exhaust motor 11 is fixedly connected to the lower end of one of the rotating rods 23, the two rotating rods 23 are arranged in parallel, and the upper ends of the two rotating rods 23 respectively pass through the two pulleys 22 and the support plate 8 and are respectively fixedly connected to the central axes of the two exhaust fan blades 24, the two rotating rods 23 are respectively fixedly connected to the two pulleys 22, and the two rotating rods 23 are both rotatably connected to the support plate 8, and the transmission belt 21 is sleeved and slidably connected to the outside of the two pulleys 22.

[0058] The wind speed adjustment mechanism includes a trigger block 16, a vertical plate 19 and several self-resetting switches 20. The trigger block 16 is fixedly connected to the side wall of the sealing plate 34, the lower end of the vertical plate 19 is fixedly connected to the side wall of the upper end of the center frame 6, and the upper end of the vertical plate 19 is fixedly connected to the several self-resetting switches 20. The several self-resetting switches 20 are equidistantly distributed, and the trigger block 16 contacts the several self-resetting switches 20 in sequence.

[0059] More specifically, when the sealing plate 34 rises under the push of the electric push rod 10, the trigger block 16 connected to the side of the sealing plate 34 will rise together. After the trigger block 16 rises to a certain height, the trigger block 16 will contact the self-reset switch 20 at the lowest end of the vertical plate 19 (which can be understood as the first gear). When the first gear self-reset switch 20 is triggered, several exhaust motors 11 will start at the same time;

[0060] As the exhaust motor 11 starts, its output shaft rotates the rotating rod 23 connected to it, and then the rotating rod 23 rotates together with the other rotating rod 23 through the pulley 22 and the transmission belt 21. Then, the two rotating rods 23 rotate together with the two exhaust fan blades 24, and then the exhaust fan blades 24 can extract hot air from under the center frame 6 (i.e., inside the factory building) and blow this part of the hot air toward the opening of the center frame 6 until it is discharged from the screen 30 and the light opening 2;

[0061] If the sealing plate 34 continues to rise, the trigger block 16 on the sealing plate 34 will trigger different self-resetting switches 20 in sequence, and then the speed of the exhaust motor 11 can be adjusted to achieve exhaust speeds of different sizes of the exhaust fan blades 24. Then, as the opening of the center frame 6 becomes larger, the exhaust speed can be increased, and as the opening of the center frame 6 becomes smaller, the exhaust speed can be reduced.

[0062] Finally, it should be noted that: the central frame 6, the outer shell 1, the connecting column 7, the support plate 8, the sealing plate 34, the support frame 15, the ceiling 4 and the connecting frame 3 are all made of steel, such as 304 stainless steel, without specific limitation; the side glass 5 and the transparent guide plate 9 are both double-layer tempered glass, and the interfaces can be bonded by glass glue or other watering, without specific limitation; the mesh 30 adopts Teflon (PTFE) coated polyester fiber mesh or 316L stainless steel ultra-thin spiral mesh. Both types of mesh 30 have the advantages of being curlable, corrosion-resistant, and high-temperature resistant. Of course, other meshes 30 with the same function can also be used, without specific limitation.

[0063] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lifting thin ventilation tower, characterized by: The invention comprises a central frame (6) installed on the top of the factory building, the upper end of the central frame (6) is located outside the factory building, and the side wall of the central frame (6) at one end outside the factory building is fixedly connected to a plurality of equally distributed connecting columns (7), the other ends of the plurality of connecting columns (7) are simultaneously fixedly connected to a shell (1), the shell (1) is suspended above the factory building, and the four sides of the upper end of the shell (1) are penetrated by light openings (2), the interior of the lower end of the central frame (6) is fixedly connected to a support plate (8), the upper surface of the support plate (8) is connected to a lifting mechanism and a plurality of auxiliary ventilation mechanisms, and the output end of the lifting mechanism is connected to A sealing plate (34) is provided, wherein the upper surface of the sealing plate (34) is fixedly connected to a plurality of support frames (15), the upper ends of the plurality of support frames (15) are simultaneously fixedly connected to a ceiling (4), the bottom surface of the ceiling (4) is fixedly connected to a connecting frame (3), the connecting frame (3) is placed on the upper surface of the outer shell (1), and the bottom surface of the connecting frame (3) is fixedly connected to a side glass (5), the side glass (5) is located in four skylights (2), one side of the upper end of the central frame (6) is connected to a wind speed regulating mechanism for changing the wind speed of a plurality of auxiliary ventilation mechanisms, and the other end of the wind speed regulating mechanism is connected to the sealing plate (34).

2. The lifting thin ventilation tower according to claim 1, characterized in that: The lifting mechanism includes a plurality of electric push rods (10), the outer walls of the plurality of electric push rods (10) are fixedly connected to the upper surface of the support plate (8), the output ends of the plurality of electric push rods (10) are fixedly connected to the bottom surface of the sealing plate (34), and the plurality of electric push rods (10) are equidistantly distributed.

3. The lifting thin ventilation tower according to claim 2, characterized in that: The bottom surface of the sealing plate (34) is fixedly connected to a transparent guide plate (9), and the bottom surface of the transparent guide plate (9) is provided with a plurality of receiving openings (14), and the plurality of electric push rods (10) are respectively located in the plurality of receiving openings (14).

4. The lifting thin ventilation tower according to claim 3, characterized in that: A sliding opening (18) is provided on the inner side of the upper end of the shell (1), and the side glass (5) is slidably connected to the sliding opening (18).

5. The lifting thin ventilation tower according to claim 4, characterized in that: The four corners of the inner side of the shell (1) are fixedly connected to L-shaped blocks (17), and both ends of the L-shaped blocks (17) are rotatably connected to winding rods (26). The outer walls of the middle parts of the four winding rods (26) are fixedly connected to screens (30), and the other ends of the four screens (30) are fixedly connected to connecting plates (28). The side walls of the four connecting plates (28) are respectively fixedly connected to the four sides of the lower end of the side glass (5), and the four screens (30) and the four connecting plates (28) are respectively aligned with the four light openings (2).

6. The lifting thin ventilation tower according to claim 5, characterized in that: The four inner sides of the shell (1) are fixedly connected to the storage boxes (12), the interiors of the four storage boxes (12) are each provided with a storage cavity (31), the four gauze nets (30) are respectively located in the four storage cavities (31), and the four connecting plates (28) are each located outside the storage box (12).

7. The lifting thin ventilation tower according to claim 6, characterized in that: The outer walls of both ends of the four winding rods (26) are fixedly connected with coil springs (27), the other ends of the eight coil springs (27) are fixedly connected with positioning blocks (32), the side walls of the eight positioning blocks (32) are respectively fixedly connected with the two ends of the four L-shaped blocks (17), and the two coil springs (27) on the same winding rod (26) have the same winding direction as the gauze (30).

8. The lifting thin ventilation tower according to claim 7, characterized in that: The upper surfaces of the four storage boxes (12) are fixedly connected to a U-shaped frame (13), the inner sides of both ends of the U-shaped frame (13) are provided with a slide groove (29), and both ends of the connecting plate (28) are fixedly connected to a slider (33), and the two sliders (33) are slidably connected to the two slide grooves (29) respectively.

9. The lifting thin ventilation tower according to claim 8, characterized in that: The auxiliary ventilation mechanism comprises an exhaust motor (11), a transmission belt (21), an L-shaped frame (25), two pulleys (22), two rotating rods (23) and two exhaust fan blades (24), the upper end of the L-shaped frame (25) is fixedly connected to the bottom surface of the support plate (8), the lower end of the L-shaped frame (25) is fixedly connected to the outer wall of the exhaust motor (11), the output shaft of the exhaust motor (11) is fixedly connected to the lower end of one of the rotating rods (23), the two rotating rods (23) are arranged in parallel, and the upper ends of the two rotating rods (23) respectively pass through the two pulleys (22) and the support plate (8) and are respectively fixedly connected to the central axes of the two exhaust fan blades (24), the two rotating rods (23) are respectively fixedly connected to the two pulleys (22), and the two rotating rods (23) are both rotatably connected to the support plate (8), and the transmission belt (21) is sleeved and slidably connected to the outside of the two pulleys (22).

10. The lifting thin ventilation tower according to claim 9, characterized in that: The wind speed regulating mechanism comprises a trigger block (16), a vertical plate (19) and a plurality of self-resetting switches (20); the trigger block (16) is fixedly connected to the side wall of the sealing plate (34); the lower end of the vertical plate (19) is fixedly connected to the side wall of the upper end of the center frame (6); the upper end of the vertical plate (19) is fixedly connected to the plurality of self-resetting switches (20); and the plurality of self-resetting switches (20) are equidistantly distributed. The trigger block (16) contacts the plurality of self-resetting switches (20) in sequence.

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