Indoor ventilation equipment for new buildings

Abstract

The present invention relates to the field of ventilation equipment, and in particular to an indoor ventilation equipment for new buildings. The equipment comprises a shell, an air inlet unit arranged on the front side of the shell for sucking air into the shell, a driving assembly arranged in the shell for driving the air inlet unit to work, and an exhaust unit arranged on the top of the shell and capable of rotating 360° with the air inlet unit for exhausting the sucked air; the air inlet unit comprises a tube body fixedly installed on the front side of the shell and a bendable air inlet pipe fixedly installed on the front side of the tube body; at least one layer of filter screen for filtering particulate matter in the sucked air is arranged at the front opening of the tube body, and a circular mesh plate is arranged at the rear opening of the tube body; at least three air inlet blades with adjustable inclination angles are arranged in the tube body. Existing indoor ventilation equipment has the problems of being inconvenient to use, low ventilation quality and high energy consumption. The equipment provided by the present invention is more convenient to use, has higher ventilation quality and lower energy consumption.

Description

Technical Field

[0001] The invention relates to the field of ventilation equipment, and in particular to indoor ventilation equipment for new buildings. Background Art

[0002] New buildings usually have high concentrations of pollutants (mainly formaldehyde) indoors. If ventilation is only done by opening windows, it usually takes about half a year to reduce the concentration of indoor pollutants to a level that allows residents to live in the building. In order to speed up the process of reducing indoor pollutant concentrations, ventilation equipment is needed to obtain a huge ventilation volume.

[0003] However, existing indoor ventilation equipment is basically a blowing device similar to a fan, and the inhaled air is usually blown in only one direction. If every corner of the house is to be covered, people need to constantly adjust the direction of the ventilation equipment, which is inconvenient to use; and the inhaled air is not processed in any way, resulting in low ventilation quality; at the same time, the air intake is mainly adjusted by adjusting the speed of the blades, which consumes a lot of energy.

[0004] Therefore, existing indoor ventilation equipment has the problems of being inconvenient to use, low ventilation quality and high energy consumption. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an indoor ventilation device for new buildings which is more convenient to use, has higher ventilation quality and lower energy consumption.

[0006] In order to solve the above technical problems, the present invention provides a new indoor ventilation device for buildings, comprising a shell, an air inlet unit arranged at the front side of the shell for sucking air into the shell, a driving assembly arranged in the shell for driving the air inlet unit to work, and an exhaust unit arranged at the top of the shell and capable of rotating 360° with the air inlet unit for exhausting the sucked air; the air inlet unit comprises a pipe body fixedly installed on the front side of the shell and a bendable air inlet pipe fixedly installed on the front side of the pipe body; at least one layer of filter for filtering particulate matter in the sucked air is arranged at the front opening of the pipe body A filter screen is provided with a circular grid plate at the rear opening of the tube body; at least three air inlet blades with adjustable inclination angles are provided in the tube body; at least three air inlet blades are all rotatably installed on the hollow cylinder, a connecting piece is fixedly installed on one side of the part of the air inlet blade located in the hollow cylinder, a sliding plate is slidably installed in the hollow cylinder, a first telescopic member for driving the sliding plate to slide back and forth is provided in the shell body, a straight rod matching the number of air inlet blades is vertically installed on the front side of the sliding plate, a bending rod is rotatably installed at the front end of the straight rod, and the end of the bending rod away from the straight rod is rotatably connected to the connecting piece.

[0007] As a further improvement of the present invention: the air inlet pipe is an exhaust bellows or a soft pipe.

[0008] As a further improvement of the present invention: the air inlet pipe is a funnel-shaped structure that is wide at the front and narrow at the back, the cross section at the front end of the air inlet pipe is a rounded rectangular structure, and the cross section at the front end of the air inlet pipe is a circular structure.

[0009] As a further improvement of the present invention: the number of the air inlet blades is an odd number.

[0010] As a further improvement of the present invention: the driving assembly includes a small gear fixedly mounted on the rear end of the hollow cylinder, a first motor is fixedly mounted in the housing, and a large gear meshing with the small gear is fixedly mounted on the output shaft of the first motor.

[0011] As a further improvement of the present invention: a horizontal grid plate is provided in the housing, and a cover plate is provided on the rear side of the portion of the circular grid plate located above the horizontal grid plate; an adsorbent, aromatherapy, air freshener or chlorine dioxide slow-release stick is detachably provided in the cavity between the horizontal grid plate and the circular grid plate in the housing; a door for replacing the adsorbent, aromatherapy, air freshener or chlorine dioxide slow-release stick is provided on the housing. Preferably, the door is slidably installed outside the housing, and a second telescopic member capable of driving the door to rise and fall is provided in the housing. Preferably, a slide groove for the door to slide up and down is installed on the outside of the housing.

[0012] As a further improvement of the present invention: the exhaust unit includes an arc-shaped exhaust pipe; a large circular ring piece is fixedly sleeved on the bottom of the exhaust pipe, an annular wall is fixedly installed on the bottom of the large circular ring piece, at least three driving blades are fixedly installed on the inner side of the annular wall around its central axis, at least three driving blades are fixedly installed on the driving roller at one end away from the annular wall, and a plurality of first universal balls that can rotate on the top of the shell are fixedly installed on the annular wall; at least three L-shaped rods for limiting the rotation range of the large circular ring piece and the annular wall are equidistantly arranged on the top of the shell around the central axis of the annular wall, and a second universal ball that can rotate on the top of the large circular ring piece is installed at one end of the L-shaped rod close to the large circular ring piece. Preferably, an exhaust fan blade is rotatably installed at the air outlet of the exhaust pipe, and a second motor for driving the exhaust fan blade to rotate is installed on the exhaust pipe.

[0013] The beneficial effects of the present invention are as follows: the indoor ventilation equipment for new buildings provided by the present invention is convenient to use, has high ventilation quality and low energy consumption. The equipment has an exhaust unit that can rotate 360° with the air intake of the air intake unit to discharge the inhaled air, so there is no need for people to manually adjust the direction of the ventilation equipment, and the air inhaled by the ventilation equipment can basically cover every corner of the room, without human operation, and no need for additional control unit control. The equipment also has a filter net for filtering particulate matter in the inhaled air, so the inhaled air will be filtered through the filter net, which can improve the air quality of the inhaled air, thereby improving the ventilation quality. The equipment also has an air intake blade with an adjustable inclination angle, so when the rotation speed of the air intake blade remains unchanged, the inclination angle of the air intake blade can be adjusted to change the air intake amount, and the inclination angle of the air intake blade is controlled by the first telescopic member, and the telescopic end of the first telescopic member only needs to be extended or shortened and then stay at a certain length, and does not need to be started for a long time, so when the air intake amount of the equipment increases, the energy consumption will basically not increase, the energy consumption is small, and it is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0016] Figure 3 It is the front view of the present invention.

[0017] Figure 4 It is a schematic diagram of the overall structure of the shell in the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the present invention after the door, air inlet pipe and exhaust unit are hidden.

[0019] Figure 6 It is an assembly diagram of a part of the shell, horizontal grid plate, support plate and key-shaped plate in the present invention.

[0020] Figure 7 It is a schematic diagram of the positional relationship of some air inlet units, horizontal grid plates, support plates, key-shaped plates and drive components in the present invention.

[0021] Figure 8 It is an assembly diagram of part of the shell and horizontal grid plate in the present invention.

[0022] Fig. 9 It is a schematic diagram of the overall structure of the key-shaped plate in the present invention.

[0023] Fig.10 It is a schematic diagram of the overall structure of the drive assembly and part of the air inlet unit in the present invention.

[0024] Fig.11 This is a schematic diagram of the overall structure of the drive assembly and part of the air inlet unit in the present invention from another angle.

[0025] Fig.12 It is a schematic diagram of the structure of the hollow cylinder part of the present invention.

[0026] Fig.13 It is a partial structural schematic diagram of the air inlet unit in the present invention.

[0027] Fig.14 It is an assembly diagram of the small circular ring piece, the sliding plate, the first telescopic member, the straight rod, the bent rod, the connecting piece, etc. in the present invention.

[0028] Fig.15 This is an assembly diagram of the small circular ring piece, the sliding plate, the first telescopic member, the straight rod, the bent rod, the connecting piece, etc. in another angle of the present invention.

[0029] Fig.16 It is a schematic diagram of the overall structure of the exhaust unit in the present invention.

[0030] Fig.17 It is an assembly diagram of the door and the second telescopic member in the present invention.

[0031] Fig.18 It is an assembly diagram of the support plate and part of the air inlet unit in the present invention.

[0032] Fig.19 It is an assembly diagram of the air inlet unit, horizontal grid plate, support plate, pipe holder and ventilation pipe in the present invention.

[0033] Fig. 20 It is an assembly diagram of the tube intubation rack and the ventilation tube in the present invention.

[0034] Fig.21 It is a schematic diagram of the overall structure of the intubation rack in the present invention.

[0035] The names of the components corresponding to the marks in the above drawings are: 1, housing; 101, horizontal grid plate; 102, support plate; 103, key-shaped plate;

[0036] 2. Air inlet unit; 201. Tube body; 202. Air inlet pipe; 203. Filter; 204. Circular grid plate; 205. Air inlet blade; 206. Cover plate;

[0037] 301, first motor; 302, small gear; 303, large gear;

[0038] 4. Exhaust unit; 401. Exhaust pipe; 402. Large annular sheet; 403. Annular surrounding wall; 404. Driving blades; 405. Driving roller; 406. First universal ball; 407. L-shaped rod; 408. Second universal ball;

[0039] 501, hollow cylinder; 502, small circular ring piece; 503, sliding plate; 504, first telescopic member; 505, straight rod; 506, bending rod; 507, connecting piece;

[0040] 601, exhaust fan blade; 602, second motor;

[0041] 701, door; 702, second telescopic member; 703, slide slot;

[0042] 801. Intubation stand; 802. Ventilation tube. DETAILED DESCRIPTION

[0043] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0044] Definitions of relevant terms involved in this invention:

[0045] (1) The directional words such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top” and “bottom” mentioned in the present invention are all Figure 3 The defined direction is used as the reference.

[0046] (2) Primary filter: used to capture larger particles such as dust, pollen, fiber, etc. Its filtration efficiency is usually between 20% and 40%, and is suitable for places where air cleanliness requirements are not high.

[0047] (3) Medium efficiency filter: used to capture smaller particles, such as fine dust, smoke, bacteria, etc. Its filtration efficiency is usually between 60% and 95%, and is suitable for places with high requirements for air cleanliness.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the indoor ventilation equipment for new buildings provided by the present invention comprises a housing 1, an air intake unit 2 arranged at the front side of the housing 1 for sucking air into the housing 1, a driving assembly arranged in the housing 1 for driving the air intake unit 2 to work, and an exhaust unit 4 arranged at the top of the housing 1 and capable of rotating 360° with the air intake of the air intake unit 2 for exhausting the sucked air. The air refers to outdoor fresh air or indoor air, and the housing 1 is divided into a passing chamber, a processing chamber, and a cavity from top to bottom.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 As shown, the air inlet unit 2 includes a tube body 201 that penetrates and is fixedly installed on the front side of the housing 1 and a bendable air inlet pipe 202 that is fixedly installed on the front side of the tube body 201. The air inlet pipe 202 is an exhaust bellows or a soft pipe. The air inlet pipe 202 is a funnel-shaped structure that is wide in the front and narrow in the back. The cross section of the front end of the air inlet pipe 202 is a rounded rectangular structure. The cross section of the front end of the air inlet pipe 202 is a circular structure. At least one layer of filter screen 203 for filtering particulate matter in the inhaled air is arranged at the front opening of the tube body 201. The figure shows one layer. The filter screen 203 is a primary filter screen or a medium filter screen. When the multiple layers of filter screens 203 are used in combination, they are arranged in the order of the primary filter screen in front and the medium filter screen in the back. A circular grid plate 204 is provided at the rear opening of the tube body 201; at least three air inlet blades 205 with adjustable inclination angles are provided in the tube body 201, and the number of the air inlet blades 205 is an odd number, because resonance is likely to occur if an even number of blades is used without proper adjustment, and there are three in the figure; at least three air inlet blades 205 are rotatably installed on the hollow cylinder 501, and a connecting piece 507 is fixedly installed on one side of the part of the air inlet blade 205 located in the hollow cylinder 501, and at least three air inlet blades 205 are equidistantly arranged in annular directions around the central axis of the hollow cylinder 501, and a small circular ring piece 502 is provided in the hollow cylinder 501, and the rear opening in the hollow cylinder 501 is connected to the hollow cylinder 501. A sliding plate 503 is slidably installed between the small circular ring pieces 502, and a protruding portion matching the number of straight rods 505 is arranged at the edge of the sliding plate 503, and a groove for the protruding portion to slide is opened in the hollow cylinder 501. A first telescopic member 504 for driving the sliding plate 503 to slide back and forth is arranged in the shell 1, and a portion of the telescopic end of the first telescopic member 504 located between the sliding plate 503 and the rear side surface of the hollow cylinder 501 is provided with a return spring, the front end of the return spring is fixedly connected to the rear side of the sliding plate 503, and the rear end of the return spring is fixedly connected to the front side of the rear side surface of the hollow cylinder 501. When the sliding plate 503 abuts against the small circular ring piece 502, the return spring is in a naturally extended state. A straight rod 505 matching the number of the air inlet blades 205 is vertically mounted on the front side of the sliding plate 503, and a hole for the straight rod 505 to pass through is provided on the small circular ring piece 502, and the small circular ring piece 502 can limit the position of the straight rod 505 in the up-down and left-right directions. A small support is fixedly mounted on the front end of the straight rod 505, a small rotating shaft is fixedly mounted in the small support, and one end of a bent rod 506 is rotatably mounted outside the small rotating shaft, and one end of the bent rod 506 away from the straight rod 505 is rotatably connected to a small rotating shaft fixedly mounted at the bottom of the connecting piece 507, and the concave surface of the bent rod 506 faces the connecting piece 507.

[0050] like Figure 6 , Figure 7 , Fig. 9 , Fig.10 , Fig.11 As shown, the drive assembly includes a pinion 302 fixedly mounted on the rear end of the hollow cylinder 501, the pinion 302 is located in the tube body 201, the first motor 301 is fixedly mounted in the housing 1, and a large gear 303 meshing with the pinion 302 is fixedly mounted on the output shaft of the first motor 301. A support plate 102 is fixedly mounted in the housing 1, a convex hole is provided on the support plate 102, a key-shaped plate 103 and connecting strips fixedly mounted on the left and right sides of the circular segment of the key-shaped plate 103 are fixedly mounted in the transverse section of the convex hole, the front side of the first motor 301 is fixedly connected to the circular segment of the key-shaped plate 103, a hole is provided on the circular segment for the output shaft of the first motor 301 to pass through, and a semicircular protective cover for protecting the part of the large gear 303 located below the support plate 102 is provided below the support plate 102. The long strip section of the key-shaped plate 103 is fixedly connected to the front side of the first telescopic member 504, and a hole is provided on the long strip section for the telescopic end of the first telescopic member 504 to pass through. An arched protective cover is fixedly installed on the top of the support plate 102, and the arched protective cover is used to protect the portion of the first motor 301 located above the support plate 102. The portion of the housing 1 between the support plate 102 and the inner bottom of the housing 1 is a cavity. A hole for the large gear 303 to pass through is opened at the bottom of the tube 201, and the small gear 302 and the large gear 303 are located in the tube 201. The portion is located in front of the circular grid plate 204. A radial support plate is also installed in the tube 201, and the rear end of the hollow cylinder 501 is rotatably installed at the center of the radial support plate.

[0051] like Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21As shown, a horizontal grid plate 101 is provided in the shell 1, a plug-in slot is provided at the inner top of the shell 1, a plug-in column which can be plugged into the plug-in slot is provided at the top of the horizontal grid plate 101, a portion of the shell 1 between the support plate 102 and the horizontal grid plate 101 is a processing chamber, a portion of the shell 1 between the horizontal grid plate 101 and the inner top of the shell 1 is a passing chamber, and the horizontal grid plate 101 is provided with a hole for the tube body 201 to pass through. A cover plate 206 is provided on the rear side of the portion of the circular grid plate 204 located above the horizontal grid plate 101; an adsorbent, aromatherapy, air freshener or chlorine dioxide slow-release stick is detachably provided in the cavity between the horizontal grid plate 101 and the circular grid plate 204 in the housing 1, and the adsorbent includes traditional activated carbon and zeolite, new nanoporous materials with large specific surface area and multifunctional adaptability to adsorption, such as activated carbon fiber (ACF), carbon nanotubes (CNTs), graphene, metal organic frameworks (MOFs) and porous organic polymers (POPs) and commercially available potassium permanganate balls. L-shaped intubation racks 801 are symmetrically provided on the left and right sides of the top of the support plate 102, and the interior of the intubation rack 801 is a hollow structure, and a plurality of holes are provided on the top thereof for inserting ventilation tubes 802 or rod-shaped objects. If it is a granular adsorbent, granular aromatherapy, or granular air freshener, first load the granular adsorbent, aromatherapy, or air freshener into the vent pipe 802, and then insert the vent pipe 802 into the intubation rack 801 for placement, the height of the vent pipe 802 is slightly lower than the internal height of the processing chamber, so the inhaled air entering the processing chamber can be more fully in contact with the granular adsorbent, aromatherapy, or air freshener in the vent pipe 802 before leaving the processing chamber. If it is a chlorine dioxide slow-release stick, directly insert the chlorine dioxide slow-release stick into the intubation rack 801. If it is a block aromatherapy or air freshener, it can be directly placed on the top of the intubation rack 801. The housing 1 is provided with a door 701 for replacing an adsorbent, aromatherapy, air freshener, or chlorine dioxide slow-release stick, and the door 701 includes a rear door, a left door, and a right door fixedly connected by a large bending rod, and the rear side, the left side, and the right side of the housing 1 are respectively provided with door holes that are matched with the shape and size of the rear door, the left door, and the right door. The door 701 is slidably mounted outside the housing 1. A second telescopic member 702 is provided in the housing 1 to drive the door 701 to rise and fall. The front side of the second telescopic member 702 is fixedly connected to the bottom of the support plate 102. A slide slot 703 is installed outside the housing 1 for the door 701 to slide up and down.

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Fig.16As shown, the exhaust unit 4 includes an arc-shaped exhaust pipe 401, and a hole for communicating with the exhaust pipe 401 in the exhaust unit 4 is opened on the top of the shell 1; a large circular ring piece 402 is fixedly sleeved on the outside of the bottom of the exhaust pipe 401, and an annular surrounding wall 403 is fixedly installed on the bottom of the large circular ring piece 402, and at least three driving blades 404 are fixedly installed on the inner side of the annular surrounding wall 403 around its central axis in a circumferential direction, and at least three driving blades 404 are fixedly installed on the driving roller 405 at one end away from the annular surrounding wall 403, and a plurality of first universal ball bearings 406 capable of rotating on the top of the shell 1 are fixedly installed on the annular surrounding wall 403; at least three L-shaped rods 407 for limiting the rotation range of the large circular ring piece 402 and the annular surrounding wall 403 are equidistantly arranged on the top of the shell 1 around the central axis of the annular surrounding wall 403, and a second universal ball bearing 408 capable of rotating on the top of the large circular ring piece 402 is installed at one end of the L-shaped rod 407 close to the large circular ring piece 402. An exhaust fan blade 601 is rotatably installed at the air outlet of the exhaust duct 401 for sucking the suction air through the cavity into the exhaust duct 401. The exhaust fan blade 601 includes five exhaust blades. A second motor 602 is installed on the exhaust duct 401 for driving the blade shaft of the exhaust fan blade 601 to rotate. A radioactive support plate for rotatably installing the blade shaft of the exhaust fan blade 601 is fixedly installed in the exhaust duct 401.

[0053] The working principle of the present invention is as follows: the second telescopic member 702 is started, the telescopic end of the second telescopic member 702 is extended, and the door 701 is driven to slide upward in the slide groove 703, the door 701 is opened, and the telescopic end of the second telescopic member 702 stays at this height. The adsorbent, aromatherapy, air freshener or chlorine dioxide slow-release stick is placed in the treatment chamber. After placement, the telescopic end of the second telescopic member 702 is shortened, driving the door 701 to slide downward in the slide groove 703, and the door 701 is closed.

[0054] Adjust the bending angle and length of the air inlet duct 202, align the air inlet of the air inlet duct 202 with the open window or extend it outside the window, start the first motor 301, and the large gear 303 on the output shaft of the first motor 301 starts to rotate. At this time, the second motor 602 is also started, driving the exhaust fan blades 601 to rotate.

[0055] The large gear 303 drives the small gear 302 to rotate, the small gear 302 drives the hollow cylinder 501 to rotate, and the hollow cylinder 501 drives the air inlet blade 205 to rotate. As the air inlet blade 205 rotates, a negative pressure state is formed in the part of the air inlet pipe 202 located before the air inlet blade 205, and the outdoor fresh air is sucked into the air inlet pipe 202, and then passes through the filter 203. The filter 203 will filter out larger particles such as dust, pollen, and fiber in the outdoor fresh air. The filtered inhaled air enters the pipe body 201, and then passes through the grid of the circular grid plate 204 and enters the processing chamber of the housing 1. If an adsorbent is placed in the processing chamber at this time, the adsorbent can adsorb impurities in the filtered inhaled air or remove the odor of the filtered inhaled air. If an aromatherapy or air freshener is placed in the processing chamber, the aromatic smell emitted by the air freshener or aromatherapy will be discharged from the exhaust pipe 401 into the room with the inhaled air, which can make the indoor air fragrant, make people feel comfortable, and reduce the indoor odor. If a chlorine dioxide slow-release stick is placed in the treatment chamber, the chlorine dioxide released by the chlorine dioxide slow-release stick will be discharged into the room from the exhaust pipe 401 along with the inhaled gas, and penetrate into the interior of indoor items such as furniture, textiles, plush toys, and decoration materials to kill viruses, bacteria, protozoa, algae, fungi, and various spores and spore-forming bacteria, thereby playing a disinfecting and sterilizing role. At the same time, chlorine dioxide can also react with indoor formaldehyde and has a certain formaldehyde removal effect. However, in order to avoid excessive use of chlorine dioxide during use, the chlorine dioxide slow-release stick must be taken out after the exhaust pipe 401 rotates twice, and the chlorine dioxide slow-release stick is only used once in each house for disinfection and sterilization.

[0056] Negative pressure is formed in the portion of the exhaust duct 401 between the air inlet and the exhaust fan blades 601, so that the secondary treated intake air passes through the grid on the horizontal grid plate 101 and is sucked into the exhaust duct 401. Driven by the first motor 301 and the second motor 602, the five driving blades 404 rotate, and the five driving blades 404 drive the annular wall 403 to rotate, and the five first universal ball bearings 406 rotate at the top of the shell 1, and the annular wall 403 drives the large circular ring piece 402 to rotate, and the second universal ball bearings 408 of the L-shaped rod 407 rotate on the top of the large circular ring piece 402 and press the large circular ring piece 402, and the large circular ring piece 402 drives the exhaust duct 401 to rotate, and the exhaust duct 401 starts to rotate 360°, and the air outlet can face all directions and blow to all positions in the house without manual debugging.

[0057] If the air intake volume needs to be changed, the first telescopic member 504 is controlled to be telescopic. When the first telescopic member 504 is extended, the telescopic end of the first telescopic member 504 drives the sliding plate 503 to slide forward in the hollow cylinder 501, and the sliding plate 503 drives the three straight rods 505 to slide forward. As the straight rods 505 slide forward, one end of the bent rod 506 begins to rotate around the small rotation axis at the front end of the straight rod 505 in the direction of the convex surface of the bent rod 506, and the end of the bent rod 506 away from the straight rod 505 drives the air intake blade 205 to rotate through the connecting piece 507, and the inclination angle of the air intake blade 205 changes. When the first telescopic member 504 is shortened, the telescopic end of the first telescopic member 504 drives the sliding plate 503 to slide backward in the hollow cylinder 501, and the sliding plate 503 drives the three straight rods 505 to slide backward. As the straight rods 505 slide backward, one end of the bent rod 506 begins to rotate around the small rotation axis at the front end of the straight rod 505 in the direction of the concave surface of the bent rod 506, and the air inlet blade 205 tilts in the opposite direction. With the change of the tilt angle, the air intake volume can change with the change of the tilt angle of the air inlet blade 205 when the speed of the first motor 301 remains unchanged, thereby achieving the change of the air intake volume under the condition of basically the same energy consumption, less energy consumption, and more energy-saving and environmentally friendly.

[0058] In addition to ventilation, the ventilation equipment can also be used to purify indoor air. The method of using this purpose is recorded below: place the equipment in a room with closed doors and windows, extend the telescopic end of the second telescopic part 702 to drive the door 701 to open, put an adsorbent, aromatherapy, air freshener or a chlorine dioxide slow-release stick in the treatment chamber, shorten the telescopic end of the second telescopic part 702 to drive the door 701 to close.

[0059] The air inlet pipe 202 is placed indoors, the first motor 301 and the second motor 602 are started, the air inlet blade 205 and the exhaust fan blade 601 start to rotate, and the indoor air is sucked into the air inlet pipe 202, and enters the treatment chamber after being filtered by the filter 203. If the treatment chamber is placed with an adsorbent, some impurities in the inhaled air are adsorbed, if it is an aromatherapy or air freshener, the inhaled air will carry a fragrant smell, and if it is a chlorine dioxide slow-release stick, the inhaled air can be disinfected and the inhaled air can carry chlorine dioxide. The inhaled air treated by the treatment chamber is discharged into the room from the exhaust pipe 401. Although there is no outdoor fresh air entering at this time, the indoor air has been processed, especially in new buildings, it is very suitable to place an adsorbent in the treatment chamber to adsorb formaldehyde.

[0060] It should be noted that the present invention is not limited to the specific structures shown in the drawings in the above-mentioned embodiments, and various changes can be made thereto within the knowledge scope of ordinary technicians in this field.

Claims

1. An indoor ventilation device for new buildings, characterized in that: It comprises a housing (1), an air intake unit (2) arranged at the front side of the housing (1) and used to draw air into the housing (1), a driving assembly arranged in the housing (1) and used to drive the air intake unit (2) to work, and an air exhaust unit (4) arranged at the top of the housing (1) and capable of rotating 360 degrees with the air intake of the air intake unit (2) and used to exhaust the inhaled air; The air inlet unit (2) comprises a tube body (201) which passes through and is fixedly mounted on the front side of the housing (1), and a bendable air inlet pipe (202) which is fixedly mounted on the front side of the tube body (201); at least one layer of filter screen (203) for filtering particulate matter in the inhaled air is arranged at the front opening of the tube body (201), and a circular mesh plate (204) is arranged at the rear opening of the tube body (201); at least three air inlet blades (205) whose inclination angles can be adjusted are arranged in the tube body (201); At least three of the air inlet blades (205) are rotatably mounted on the hollow cylinder (501); a connecting piece (507) is fixedly mounted on one side of the portion of the air inlet blade (205) located in the hollow cylinder (501); a sliding plate (503) is slidably mounted in the hollow cylinder (501); a small circular ring (502) is provided in the hollow cylinder (501); the sliding plate (503) is slidably mounted between a rear opening in the hollow cylinder (501) and the small circular ring (502); a first telescopic member (504) for driving the sliding plate (503) to slide forward and backward is provided in the housing (1); a telescopic end of the first telescopic member (504) is located at the sliding plate (503); A return spring is provided on a portion of the outer sleeve between the movable plate (503) and the rear side surface of the hollow cylinder (501); the front end of the return spring is fixedly connected to the rear side of the sliding plate (503); the rear end of the return spring is fixedly connected to the front side of the rear side surface of the hollow cylinder (501); a straight rod (505) matching the number of the air inlet blades (205) is vertically mounted on the front side of the sliding plate (503); a hole for the straight rod (505) to pass through is provided on the small annular plate (502); a bent rod (506) is rotatably mounted on the front end of the straight rod (505); and one end of the bent rod (506) away from the straight rod (505) is rotatably connected to the connecting plate (507); The shell (1) is provided with a horizontal grid plate (101), and an adsorbent, aromatherapy, air freshener or chlorine dioxide slow-release stick is detachably provided in a cavity between the horizontal grid plate (101) and the circular grid plate (204) in the shell (1); a support plate (102) is fixedly installed in the shell (1), and L-shaped tube intubation racks (801) are symmetrically provided on the left and right sides of the top of the support plate (102); the interior of the tube intubation rack (801) is a hollow structure, and a plurality of holes capable of inserting ventilation tubes (802) or stick-shaped objects are provided on the top of the tube intubation rack (801); The housing (1) is provided with a door (701) for replacing the adsorbent, the aromatherapy, the air freshener or the chlorine dioxide slow-release stick; The exhaust unit (4) comprises an arc-shaped exhaust pipe (401); a large circular ring (402) is fixedly sleeved on the outside of the bottom of the exhaust pipe (401); an annular wall (403) is fixedly installed on the bottom of the large circular ring (402); at least three driving blades (404) are fixedly installed on the inner side of the annular wall (403) in a circumferential direction around its central axis; at least three driving blades (404) are fixedly installed on one end away from the annular wall (403) on a driving roller (405); and a plurality of first universal balls (406) that can rotate on the top of the housing (1) are fixedly installed on the annular wall (403); At least three L-shaped rods (407) for limiting the rotation range of the large circular ring piece (402) and the circular ring wall (403) are equidistantly arranged at the top of the shell (1) around the central axis of the circular ring wall (403), and a second universal ball (408) capable of rotating on the top of the large circular ring piece (402) is installed at one end of the L-shaped rod (407) close to the large circular ring piece (402).

2. The indoor ventilation equipment for new buildings according to claim 1, characterized in that: The air inlet pipe (202) is an air exhaust corrugated pipe or a soft pipe.

3. The indoor ventilation equipment for new buildings according to claim 1, characterized in that: The air inlet pipe (202) is in the form of a funnel-shaped structure that is wide at the front and narrow at the rear, and the cross-section of the front end of the air inlet pipe (202) is in the form of a rounded rectangular structure.

4. The indoor ventilation equipment for new buildings according to any one of claims 1 to 3, characterized in that: The number of the air inlet blades (205) is an odd number.

5. The indoor ventilation equipment for new buildings according to any one of claims 1 to 3, characterized in that: The driving assembly comprises a small gear (302) fixedly mounted on the rear end of the hollow cylinder (501), a first motor (301) fixedly mounted in the housing (1), and a large gear (303) meshing with the small gear (302) fixedly mounted on the output shaft of the first motor (301).

6. The indoor ventilation equipment for new buildings according to any one of claims 1 to 3, characterized in that: A cover plate (206) is provided on the rear side of the portion of the circular grid plate (204) located above the horizontal grid plate (101).

7. The indoor ventilation equipment for new buildings according to claim 6, characterized in that: The door (701) is slidably mounted outside the shell (1), and a second telescopic member (702) capable of driving the door (701) to move up and down is provided in the shell (1).

8. The indoor ventilation equipment for new buildings according to claim 7, characterized in that: A sliding groove (703) for the door (701) to slide up and down is installed on the outer side of the shell (1).

9. An indoor ventilation device for new buildings according to any one of claims 1 to 3, characterized in that: An exhaust fan blade (601) is rotatably mounted at the air outlet of the exhaust pipe (401), and a second motor (602) for driving the exhaust fan blade (601) to rotate is mounted on the exhaust pipe (401).

Images