Efficient ventilation and purification device for doors and windows

By designing efficient ventilation and purification devices for doors and windows, efficient ventilation of indoor and outdoor air is achieved by using ventilation and air intake mechanisms, the problem that simply opening windows cannot effectively regulate indoor and outdoor air is solved, and the indoor air is ensured clean.

CN119983439AInactive Publication Date: 2025-05-13LANSHAN JINERMA SMART HOME TECH IND CO LTD
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Patent Information

Application Number
CN202510246649.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The air conditioning effect of the indoor room is poor by simply opening windows, and it is impossible to effectively achieve efficient ventilation of indoor and outdoor air.

Method used

Design an efficient ventilation purification device for doors and windows, including a ventilation mechanism and an air intake mechanism. The ventilation mechanism consists of a ventilation box, a motor, a fan blade, a transmission wheel and a transmission belt. The fan blade is driven to rotate through the motor to realize the discharge of indoor air; the air inlet mechanism consists of a wind turbine, a filter, an air inlet and a shielding plate. The piston block is driven down through the motor to drive the shielding plate to rotate, open the air inlet, and realize the intake of fresh air.

Benefits of technology

It realizes efficient ventilation and heat dissipation when the glass window is closed, ensuring clean indoor air, and solving the problem that simply opening the window cannot effectively regulate indoor and outdoor air.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of ventilation and purification, and discloses a door and window efficient ventilation and purification device which comprises a window body, a ventilation mechanism is arranged at the top of the window body, an air inlet mechanism is arranged at the bottom of the window body, the ventilation mechanism comprises a ventilation box, and the ventilation box is provided with a motor. Fan blades are arranged on the two sides of the motor, two first transmission wheels are arranged at the front end of an output shaft of the motor, second transmission wheels are arranged on the two sides of the output shaft of the motor, and a transmission belt is jointly connected between the outer side walls of the two first transmission wheels and the outer side walls of the two second transmission wheels in a transmission mode; when the motor is started and is blocked by the wedge-shaped fixing piece to move backwards, the piston plate can be extruded to move, so that gas in the barrel is exhausted, the connecting strip is pushed through the push rod, then the first shielding piece is poked to rotate and open through the L-shaped shaft rod, and the ventilation opening is opened for ventilation.
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Description

Technical Field

[0001] The invention relates to the field of ventilation and purification, and more particularly to a high-efficiency ventilation and purification device for doors and windows. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for air quality. Windows are essential facilities in houses. They have the effect of lighting and ventilation, and can exchange heat between indoor and outdoor, and save energy. If the windows are closed for a long time without ventilation to the outside world, the indoor air will be polluted, and if the windows are opened, there will be no privacy indoors.

[0003] However, simply relying on opening windows to air condition indoor rooms has poor effect, and indoor and outdoor air conditioning can only be achieved by using external flowing wind, which needs to be improved. For this reason, we have proposed a door and window high-efficiency ventilation and purification device. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a door and window high-efficiency ventilation and purification device, which can solve the problem that the air conditioning effect of indoor rooms is poor simply by opening windows and can only achieve indoor and outdoor air conditioning by using external flowing wind.

[0005] To solve the above technical problems, according to one aspect of the present invention, more specifically, a door and window high-efficiency ventilation and purification device comprises a window body, a ventilation mechanism is arranged at the top of the window body, and an air intake mechanism is arranged at the bottom of the window body;

[0006] The ventilation mechanism includes a ventilation box, the ventilation box is provided with a motor, fan blades are provided on both sides of the motor, two transmission wheels 1 are provided at the front end of the output shaft of the motor, and transmission wheels 2 are provided on both sides of the output shaft of the motor, and the outer sides of the two transmission wheels 1 are respectively connected to the outer sides of the two transmission wheels 2 by a transmission belt for common transmission, the front surface of the ventilation box is symmetrically provided with ventilation holes, and the interior of the ventilation holes is symmetrically connected with a shielding piece 1 through a rotating shaft, the front end of the output shaft of the motor is fixedly connected with a connecting column, and the outer sides of the connecting column are symmetrically provided with connecting grooves, and the rear surface of the transmission wheel 1 located at the rear of the ventilation box is located on the inner side of the two connecting grooves and fixed with a wedge-shaped fixing piece;

[0007] The air inlet mechanism includes an air inlet box, two filters are arranged inside the air inlet box, two air inlets are symmetrically opened on the front surface of the air inlet box, and a plurality of shielding sheets are rotatably connected to the inside of the air inlet via a rotating shaft.

[0008] Furthermore, the window body includes a frame, the inner side of which is rotatably connected to two glass windows via hinges, the top and bottom of the frame are fixedly connected to the opposite sides of the ventilation box and the air inlet box respectively, and handles are fixedly connected to the opposite sides of the front surfaces of the glass windows.

[0009] Furthermore, a cover plate is installed on the rear surface of the ventilation box by means of bolts, a plurality of ventilation grooves are provided on both sides of the rear surface of the cover plate, and the front surface of the cover plate is fixedly connected to the front end of the central axis of the transmission wheel 1 and the front end of the central axis of the transmission wheel 2 located at the rear of the ventilation box.

[0010] Furthermore, a partition plate is fixedly connected inside the ventilation box between the motor and the fan blades, and the partition plate is slidably connected to the transmission belt.

[0011] Furthermore, a cover body is integrally formed on the front surface of the ventilation box between the two vents, and opposite sides of the left and right opposing shielding pieces are fixedly connected with an L-shaped shaft rod inside the cover body, and one end of the L-shaped shaft rod away from the shielding piece is fixedly connected with a concave part, and the inner side of the concave part is rotatably connected with a connecting piece via a rotating shaft, and a connecting strip is fixedly connected between the multiple connecting pieces.

[0012] Furthermore, the inner front surface of the ventilation box is fixedly connected to a cylinder, the interior of the cylinder is slidably connected to a piston plate, a plurality of springs are fixedly connected between the piston plate and the cylinder, the front surface of the piston plate is fixedly connected to a push rod, the rear end of the push rod passes through the interior of the cover and is fixedly connected to the rear surface of the connecting strip, and the front surface of the piston plate is fixedly connected to the rear surface of the motor.

[0013] Furthermore, a partition is embedded and fixedly connected inside the air inlet box between the two air inlets, and both sides of the partition are fixedly connected to the opposite sides of the two filter screens respectively, a cavity is opened in the front of the interior of the partition, a ventilation pipe is fixedly connected between the cavity and the cylinder, a piston block is slidably connected to the upper part of the interior of the cavity, a vertical bar is fixedly connected to the lower surface of the piston block, an extrusion block is fixedly connected to the bottom end of the vertical bar, and a plurality of springs are fixedly connected between the extrusion block and the cavity.

[0014] Furthermore, the opposite sides of the two left and right opposing shielding plates are fixedly connected with an axial column inside the cavity, and the opposite sides of the two left and right opposing axial columns are commonly fixedly connected with a linkage rod, the outer side wall of the linkage rod is rotatably connected with a rotating sleeve via a rotating shaft, the front surface of the rotating sleeve is fixedly connected with a rotating connecting head, and the rotating connecting head is rotatably connected to the vertical bar via a rotating shaft.

[0015] Furthermore, a recess is provided on the rear surface of the partition, and through-type telescopic holes are provided on both sides of the recess, a trapezoidal bar is slidably connected to the inside of the recess, and a wedge block is integrally formed on the front surface of the trapezoidal bar located in the cavity, and the wedge block is located below the extrusion block, and a pressure plate is slidably connected to the inside of the recess on both sides of the wedge block, and the outer wall of the pressure plate is located on the inner side of the telescopic hole and is fixedly connected to a limiting column, and a plurality of springs are fixedly connected between the two pressure plates.

[0016] The beneficial effects of the door and window high-efficiency ventilation and purification device of the present invention are:

[0017] When the motor starts and is blocked by the wedge-shaped fixed sheet and moves backward, it will squeeze the piston plate to move, so that the gas inside the cylinder will be discharged, and the connecting strip will be pushed by the push rod, and then the shielding sheet will be turned open by the L-shaped shaft rod, so that the vent is opened for ventilation. In this way, under normal conditions, multiple shielding sheets will cover the vent to achieve a sealed effect.

[0018] When the motor is started, the gas discharged from the cylinder body will flow into the cavity, driving the piston block to descend, thereby driving the shaft column to rotate under the pull of the linkage rod, causing the shielding piece 2 to rotate. At this time, the air inlet is opened to facilitate air intake and ventilation. This method makes the air inlet in a closed state under normal conditions. When air is taken in, the filter screen filters the incoming gas, and the filter screen is easy to disassemble and clean;

[0019] When the piston block descends, it will push the extrusion block down together, thereby pushing the wedge block to move backward. At this time, it will push the trapezoidal bar to move backward, and then squeeze the two pressure plates apart. At this time, the limit column extends from the telescopic hole to block the filter to prevent the motor from vibrating when it starts, causing the filter to fall off easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency ventilation and purification device for doors and windows of the present invention;

[0022] Figure 2 It is a rear structural schematic diagram of a door and window high-efficiency ventilation and purification device of the present invention;

[0023] Figure 3 It is a cross-sectional rear view structural schematic diagram of a ventilation mechanism of a door and window high-efficiency ventilation and purification device of the present invention;

[0024] Figure 4 It is a partial cross-sectional front view structural schematic diagram of a ventilation mechanism of a door and window high-efficiency ventilation and purification device of the present invention;

[0025] Figure 5 It is a schematic diagram of the side view connection structure of a motor, a transmission wheel 1, a wedge-shaped fixing plate and a connecting column of a door and window high-efficiency ventilation and purification device of the present invention;

[0026] Figure 6 A schematic diagram of the internal structure of an air cylinder of a door and window high-efficiency ventilation and purification device of the present invention;

[0027] Figure 7 It is a partial cross-sectional structural schematic diagram of an air inlet mechanism of a door and window high-efficiency ventilation and purification device of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the air inlet mechanism of a door and window high-efficiency ventilation and purification device of the present invention;

[0029] Fig. 9 It is a schematic diagram of the connection structure of a pressure-bearing sheet and a limiting column of a door and window high-efficiency ventilation and purification device of the present invention;

[0030] Fig.10 It is a schematic diagram of the side view connection structure of a wedge-shaped block and a trapezoidal bar of a door and window high-efficiency ventilation and purification device of the present invention;

[0031] Fig.11 A high-efficiency ventilation and purification device for doors and windows of the present invention Figure 7 A is an enlarged structural diagram of FIG.

[0032] In the figure: 1, window body; 2, ventilation mechanism; 3, air inlet mechanism; 101, frame; 102, glass window; 103, handle; 201, ventilation box; 202, motor; 203, fan blade; 204, transmission wheel 1; 205, transmission wheel 2; 206, transmission belt; 207, vent; 208, shielding piece 1; 209, cover plate; 210, ventilation slot; 211, partition plate; 212, cover body; 213, L-shaped shaft rod; 214, concave member; 215, connecting piece; 216, connecting strip; 217, cylinder; 218, piston plate; 219, spring 1; 220, push Rod; 221, connecting column; 222, connecting groove; 223, wedge-shaped fixing plate; 301, air inlet box; 302, filter screen; 303, air inlet; 304, shielding plate 2; 305, partition; 306, cavity; 307, ventilation pipe; 308, piston block; 309, vertical bar; 310, extrusion block; 311, spring 2; 312, shaft column; 313, linkage rod; 314, rotating sleeve; 315, rotating connector; 316, notch; 317, telescopic hole; 318, trapezoidal bar; 319, wedge-shaped block; 320, pressure plate; 321, limit column; 322, spring 3. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0034] According to one aspect of the present invention:

[0035] like Figure 1 and Figure 2 As shown, a door and window high-efficiency ventilation and purification device is provided, comprising a window body 1, a ventilation mechanism 2 is arranged at the top of the window body 1, an air intake mechanism 3 is arranged at the bottom of the window body 1, the window body 1 comprises a frame 101, two glass windows 102 are rotatably connected to the inner side of the frame 101 through a hinge, the top and bottom of the frame 101 are respectively fixedly connected to the opposite sides of the ventilation box 201 and the air intake box 301, and handles 103 are fixedly connected to the opposite sides of the front surfaces of the glass windows 102;

[0036] The window body 1 is easy to control opening and closing through the frame 101, the glass window 102 and the handle 103, so as to achieve normal ventilation and achieve energy-saving ventilation and heat exchange effects. The window body 1 can ventilate and dissipate heat when the glass window 102 is closed through the ventilation mechanism 2 and the air intake mechanism 3, so as to achieve efficient ventilation effect for indoor and outdoor air and ensure clean indoor air.

[0037] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the ventilation mechanism 2 includes a ventilation box 201, the ventilation box 201 is provided with a motor 202, and fan blades 203 are provided on both sides of the motor 202. Two transmission wheels 204 are provided at the front end of the output shaft of the motor 202, and transmission wheels 205 are provided on both sides of the output shaft of the motor 202. The outer walls of the two transmission wheels 1 204 are respectively connected to the outer walls of the two transmission wheels 205 by a transmission belt 206. The front surface of the ventilation box 201 is symmetrically provided with ventilation holes 207, and the interior of the ventilation holes 207 is symmetrically connected to a shielding piece 208 through a rotating shaft. The front end of the output shaft of the motor 202 is fixedly connected to a connecting column 221, and the connecting column 22 The outer wall of the ventilation box 201 is symmetrically provided with connecting grooves 222, and the rear surface of the transmission wheel 1 204 located at the rear of the ventilation box 201 is located at the inner side of the two connecting grooves 222. The rear surface of the ventilation box 201 is disassembled and installed with a cover plate 209 by bolts. Both sides of the rear surface of the cover plate 209 are provided with multiple ventilation grooves 210. The front surface of the cover plate 209 is fixedly connected to the front end of the central axis of the transmission wheel 1 204 and the front end of the central axis of the transmission wheel 2 205 located at the rear of the ventilation box 201. The interior of the ventilation box 201 is fixedly connected with a splitting piece 211 between the motor 202 and the fan blade 203, and the splitting piece 211 is slidably connected to the transmission belt 206;

[0038] The motor 202 is started, and the fan blades 203 can be driven to rotate under the transmission of the transmission wheel 1 204, the transmission wheel 205 and the transmission belt 206, so that the indoor air can be discharged to the outside through the vent 207, achieving a ventilation effect, and the motor 202 is squeezed by the connection groove 222 and the wedge-shaped fixing piece 223, which will cause the motor 202 to move backward;

[0039] The front surface of the ventilation box 201 is located between the two ventilation ports 207 and is integrally formed with a cover body 212. The opposite sides of the left and right opposing shielding sheets 208 are located inside the cover body 212 and are fixedly connected with an L-shaped shaft rod 213. The end of the L-shaped shaft rod 213 away from the shielding sheet 208 is fixedly connected with a concave piece 214. The inner side of the concave piece 214 is rotatably connected with a connecting piece 215 through a rotating shaft. A connecting strip 216 is fixedly connected between the multiple connecting pieces 215. The internal front surface of the ventilation box 201 is fixedly connected with a cylinder 217. The interior of the cylinder 217 is slidably connected with a piston plate 218. A plurality of springs 219 are fixedly connected between the piston plate 218 and the cylinder 217. The front surface of the piston plate 218 is fixedly connected with a push rod 220. The rear end of the push rod 220 penetrates into the interior of the cover body 212 and is fixedly connected to the rear surface of the connecting strip 216. The front surface of the piston plate 218 is fixedly connected to the rear surface of the motor 202.

[0040] When the motor 202 is started and is blocked by the wedge-shaped fixing plate 223 and moves backward, the piston plate 218 is squeezed to move, so that the gas inside the cylinder 217 is discharged, and the connecting strip 216 is pushed by the push rod 220, and then the shielding plate 208 is turned and opened by the L-shaped shaft 213, so that the vent 207 is opened for ventilation. In this way, in a normal state, multiple shielding plates 208 will cover the vent 207 to achieve a sealed effect;

[0041] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the air intake mechanism 3 includes an air intake box 301, two filter screens 302 are arranged inside the air intake box 301, two air inlets 303 are symmetrically provided on the front surface of the air intake box 301, and a plurality of shielding sheets 304 are rotatably connected to the air inlets 303 through a rotating shaft. A partition plate 305 is fixedly connected and embedded between the two air inlets 303 inside the air intake box 301, and both sides of the partition plate 305 are fixedly connected to the opposite sides of the two filter screens 302 respectively. A cavity 306 is provided in the front of the interior of the partition plate 305, and an air exchange pipe 307 is fixedly connected between the cavity 306 and the cylinder 217, and a piston block 30 is slidably connected to the upper part of the interior of the cavity 306. 8. A vertical bar 309 is fixedly connected to the lower surface of the piston block 308, and an extrusion block 310 is fixedly connected to the bottom end of the vertical bar 309. A plurality of springs 311 are fixedly connected between the extrusion block 310 and the cavity 306. A shaft column 312 is fixedly connected to the opposite sides of the two left and right opposite shielding pieces 304 located inside the cavity 306. A linkage rod 313 is fixedly connected to the opposite sides of the two left and right opposite shaft columns 312. A rotating sleeve 314 is rotatably connected to the outer wall of the linkage rod 313 through a rotating shaft. A rotating connector 315 is fixedly connected to the front surface of the rotating sleeve 314. The rotating connector 315 is rotatably connected to the vertical bar 309 through a rotating shaft.

[0042] When the motor 202 is started, the gas discharged from the cylinder 217 is affected and flows into the cavity 306, driving the piston block 308 to descend, thereby driving the shaft column 312 to rotate under the pull of the linkage rod 313, so that the shielding sheet 304 rotates. At this time, the air inlet 303 is opened to facilitate air intake and ventilation. In this way, the air inlet 303 is in a closed state under normal conditions. When air is taken in, the filter screen 302 filters the incoming gas, and the filter screen 302 is easy to disassemble and clean.

[0043] A notch 316 is provided on the rear surface of the partition 305, and through-type telescopic holes 317 are provided on both sides of the notch 316. A trapezoidal bar 318 is slidably connected inside the notch 316. A wedge block 319 is integrally formed on the front surface of the trapezoidal bar 318 located inside the cavity 306. The wedge block 319 is located below the extrusion block 310. A pressure piece 320 is slidably connected on both sides of the wedge block 319 inside the notch 316. The outer wall of the pressure piece 320 is located inside the telescopic hole 317 and is fixedly connected to a limiting column 321. A plurality of springs 322 are fixedly connected between the two pressure pieces 320.

[0044] When the piston block 308 descends, it will push the extrusion block 310 to descend together, thereby pushing the wedge block 319 to move backward, and at this time it will push the trapezoidal bar 318 to move backward, and then squeeze the two pressure plates 320 apart. At this time, the limit column 321 extends from the inside of the telescopic hole 317 to block the filter screen 302, preventing the motor 202 from vibrating when it starts, causing the filter screen 302 to fall off easily.

[0045] The electrical components that appear in this article are all electrical components that exist in reality.

[0046] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A door and window high-efficiency ventilation and purification device, comprising a window body (1), characterized in that: The top of the window body (1) is provided with a ventilation mechanism (2), and the bottom of the window body (1) is provided with an air intake mechanism (3); The ventilation mechanism (2) comprises a ventilation box (201), the ventilation box (201) is provided with a motor (202), fan blades (203) are provided on both sides of the motor (202), two transmission wheels (204) are provided at the front end of the output shaft of the motor (202), transmission wheels (205) are provided on both sides of the output shaft of the motor (202), and outer side walls of the two transmission wheels (204) (204) are respectively connected to outer side walls of the two transmission wheels (205) by a transmission belt (206), The front surface of the ventilation box (201) is symmetrically provided with ventilation holes (207), the interior of the ventilation hole (207) is symmetrically connected to a shielding plate (208) via a rotating shaft, the front end of the output shaft of the motor (202) is fixedly connected to a connecting column (221), the outer wall of the connecting column (221) is symmetrically provided with connecting grooves (222), and the rear surface of the driving wheel (204) located at the rear of the ventilation box (201) is located on the inner side of two connecting grooves (222) and fixed with a wedge-shaped fixing plate (223); The air intake mechanism (3) comprises an air intake box (301), two filter screens (302) are arranged inside the air intake box (301), two air inlets (303) are symmetrically provided on the front surface of the air intake box (301), and a plurality of shielding plates (304) are rotatably connected inside the air inlet (303) via a rotating shaft.

2. A door and window high-efficiency ventilation and purification device according to claim 1, characterized in that: The window body (1) comprises a frame (101), the inner side of the frame (101) is rotatably connected to two glass windows (102) via a hinge, the top and bottom of the frame (101) are respectively fixedly connected to the opposite sides of the ventilation box (201) and the air inlet box (301), and handles (103) are fixedly connected to the opposite sides of the front surfaces of the glass windows (102).

3. A door and window high-efficiency ventilation and purification device according to claim 1, characterized in that: A cover plate (209) is installed on the rear surface of the ventilation box (201) by means of bolts, and a plurality of ventilation slots (210) are provided on both sides of the rear surface of the cover plate (209). The front surface of the cover plate (209) is fixedly connected to the front end of the central axis of the transmission wheel 1 (204) and the front end of the central axis of the transmission wheel 2 (205) located at the rear of the ventilation box (201).

4. The door and window high-efficiency ventilation and purification device according to claim 1, characterized in that: A partition plate (211) is fixedly connected inside the ventilation box (201) and located between the motor (202) and the fan blade (203), and the partition plate (211) is slidably connected to the transmission belt (206).

5. The door and window high-efficiency ventilation and purification device according to claim 1, characterized in that: The front surface of the ventilation box (201) is integrally formed with a cover body (212) located between the two ventilation openings (207); the opposite sides of the left and right opposing shielding plates (208) are fixedly connected with L-shaped shafts (213) located inside the cover body (212); one end of the L-shaped shaft (213) away from the shielding plate (208) is fixedly connected with a concave piece (214); the inner side of the concave piece (214) is rotatably connected with a connecting piece (215) via a rotating shaft; a connecting strip (216) is fixedly connected between the plurality of connecting pieces (215).

6. A door and window high-efficiency ventilation and purification device according to claim 5, characterized in that: The internal front surface of the ventilation box (201) is fixedly connected to a cylinder (217), the interior of the cylinder (217) is slidably connected to a piston plate (218), a plurality of springs (219) are fixedly connected between the piston plate (218) and the cylinder (217), the front surface of the piston plate (218) is fixedly connected to a push rod (220), the rear end of the push rod (220) passes through the interior of the cover (212) and is fixedly connected to the rear surface of the connecting strip (216), and the front surface of the piston plate (218) is fixedly connected to the rear surface of the motor (202).

7. A door and window high-efficiency ventilation and purification device according to claim 6, characterized in that: A partition (305) is embedded and fixedly connected inside the air inlet box (301) and located between the two air inlets (303). The two sides of the partition (305) are respectively fixedly connected to the opposite sides of the two filter screens (302). A cavity (306) is opened in the front of the interior of the partition (305). A ventilation pipe (307) is fixedly connected between the cavity (306) and the cylinder (217). A piston block (308) is slidably connected to the upper part of the interior of the cavity (306). A vertical bar (309) is fixedly connected to the lower surface of the piston block (308). An extrusion block (310) is fixedly connected to the bottom end of the vertical bar (309). A plurality of springs (311) are fixedly connected between the extrusion block (310) and the cavity (306).

8. The door and window high-efficiency ventilation and purification device according to claim 7, characterized in that: The opposite sides of the two left and right opposite shielding plates (304) are located inside the cavity (306) and are fixedly connected with an axial column (312). The opposite sides of the two left and right opposite axial columns (312) are commonly fixedly connected with a linkage rod (313). The outer wall of the linkage rod (313) is rotatably connected with a rotating sleeve (314) via a rotating shaft. The front surface of the rotating sleeve (314) is fixedly connected with a rotating connector (315). The rotating connector (315) is rotatably connected to the vertical bar (309) via a rotating shaft.

9. A door and window high-efficiency ventilation and purification device according to claim 8, characterized in that: The rear surface of the partition (305) is provided with a notch (316), and through-type telescopic holes (317) are provided on both sides of the notch (316). A trapezoidal bar (318) is slidably connected inside the notch (316), and a wedge block (319) is integrally formed on the front surface of the trapezoidal bar (318) located inside the cavity (306). The wedge block (319) is located below the extrusion block (310), and a pressure plate (320) is slidably connected to both sides of the wedge block (319) inside the notch (316). The outer wall of the pressure plate (320) is located inside the telescopic hole (317) and is fixedly connected to a limiting column (321), and a plurality of springs (322) are fixedly connected between the two pressure plates (320).