CN113898084A - Remote control pneumatic optimization device suitable for overhanging roof and use method thereof - Google Patents
Remote control pneumatic optimization device suitable for overhanging roof and use method thereof Download PDFInfo
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- CN113898084A CN113898084A CN202111317216.7A CN202111317216A CN113898084A CN 113898084 A CN113898084 A CN 113898084A CN 202111317216 A CN202111317216 A CN 202111317216A CN 113898084 A CN113898084 A CN 113898084A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
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Abstract
The invention discloses a remote control pneumatic optimization device suitable for an overhanging roof and a using method thereof, wherein the remote control pneumatic optimization device comprises an inner cylinder, the inner cylinder is arranged at the front edge of the overhanging roof and is fixedly connected with the overhanging roof, the cylinder body of the inner cylinder is provided with a first air inlet and a first air outlet, and an outer cylinder which is sleeved on the inner cylinder and is rotationally connected with the inner cylinder, and the cylinder body of the outer cylinder is provided with a second air inlet and a second air outlet; the driving device is connected with the outer cylinder to drive the outer cylinder to rotate; the central angle corresponding to the second air inlet is smaller than that corresponding to the first air inlet, and the central angle corresponding to the first air outlet is larger than that corresponding to the second air outlet. The driving device drives the outer barrel to rotate, the position and the angle of the second air inlet are changed, the air pressure distribution of the roof panel is further changed, and the average wind load on the surface of the overhanging roof is effectively reduced.
Description
Technical Field
The invention belongs to the field of overhanging roof pneumatic optimization, and relates to a remote control pneumatic optimization device suitable for an overhanging roof and a using method thereof.
Background
In recent years, with the rapid development of structural design and construction technology, the structural trend is developing towards high, large and flexible directions, the sensitivity to wind action is increasingly enhanced, wind load becomes control load in the design of large-scale structures, the wind load is one of the research contents of structural wind engineering, and wind tunnel test is the most main research method of structural wind engineering.
For a large-span overhanging roof, how to carry out pneumatic optimization of the roof panel is a difficult problem. The pneumatic optimization measure of the roof panel is that a seamless pipe with an array hole is installed at the front end of the roof panel, but the section, the aperture and the spacing density of the array hole of the seamless pipe are not specified, in addition, various working conditions exist in wind tunnel experiments generally, one seamless pipe cannot cope with different working conditions, so that the seamless pipes with different sections, different apertures, different spacings and different densities need to be replaced in each working condition, the operation is too troublesome, and the position of an air inlet cannot be changed according to incoming flows of different wind directions so as to adjust the surface wind pressure of the cantilever roof panel.
Disclosure of Invention
The embodiment of the invention aims to provide a remote control pneumatic optimization device suitable for an overhanging roof, and solves the problem that the existing pneumatic optimization device for the overhanging roof cannot change the angle and the position of an air inlet according to incoming flows of different wind directions and cannot be well adapted to various working conditions.
Another object of an embodiment of the present invention is to provide a method for using a remote-controlled pneumatic optimization device for an overhanging roof.
The technical scheme adopted by the embodiment of the invention is as follows: a remote control pneumatic optimization device suitable for overhanging roof comprises
The inner tube, the inner tube set up in the leading edge department of the roofing of encorbelmenting and with roofing fixed connection encorbelments, first air intake and first air outlet have been seted up to the stack shell of inner tube to and
the outer cylinder is sleeved on the inner cylinder and is rotatably connected with the inner cylinder, and a second air inlet and a second air outlet are formed in the cylinder body of the outer cylinder; and
the driving device is connected with the outer cylinder to drive the outer cylinder to rotate; wherein the content of the first and second substances,
the central angle corresponding to the second air inlet is smaller than that corresponding to the first air inlet, and the central angle corresponding to the first air outlet is larger than that corresponding to the second air outlet.
Furthermore, first air outlet is located the inner tube top, and first air intake is located the inner tube and keeps away from overhanging roofing one side, and the edgewise looks, and the corresponding central angle's of first air intake divides the angular line and coincides with the water flat line, and the corresponding central angle's of first air outlet divides the angular line and corresponds the central angle's of first air intake branch angular line mutually perpendicular.
Furthermore, when viewed from the side, the angle dividing line of the second air inlet corresponding to the central angle is perpendicular to the angle dividing line of the second air outlet corresponding to the central angle.
Furthermore, the central angle corresponding to the first air inlet is 60 degrees, and the central angle corresponding to the first air outlet is 10 degrees;
the central angle corresponding to the second air inlet is 10 degrees, and the central angle corresponding to the second air outlet is 60 degrees.
Furthermore, the driving device comprises a rolling shaft, a rotating disc and a motor, the rolling shaft consists of a rolling shaft inner layer and a rolling shaft outer layer which is partially sleeved on the rolling shaft inner layer, and the rolling shaft outer layer is rotatably connected with the rolling shaft inner layer; the end part of the superposed part of the outer layer of the rolling shaft and the inner layer of the rolling shaft is fixedly connected with one end of the outer cylinder, and the end part of the inner layer of the rolling shaft, which is far away from the superposed part of the inner layer of the rolling shaft and the outer layer of the rolling shaft, is fixedly connected with one end of the inner cylinder; an output shaft of the motor is fixedly connected with the end part of the outer layer of the rolling shaft, which is far away from the overlapping part of the outer layer of the rolling shaft and the inner layer of the rolling shaft, through a rotating disc.
The roller bearing further comprises a fixing plate, the fixing plate is arranged in the inner cavity of the roller and is fixedly connected with the inner layer of the roller, and the motor is fixed on the fixing plate;
the outer diameter of the inner layer of the rolling shaft is consistent with that of the inner cylinder, and the outer diameter of the outer layer of the rolling shaft is consistent with that of the outer cylinder.
Further, the device also comprises an infrared receiver, wherein the infrared receiver is used for receiving a remote control signal and controlling a motor of the driving device to start/stop working according to the received remote control signal;
the motor is fixedly connected with the rotating disc through a gear fixed on an output shaft of the motor;
the inner barrel is fixed at the front edge of the overhanging roof through the horizontal support, and the outer barrel is provided with a horizontal support rotating seam for avoiding the horizontal support.
The embodiment of the invention adopts another technical scheme that: the use method of the remote control pneumatic optimization device suitable for the overhanging roof is characterized in that an infrared remote controller is communicated with an infrared receiver of the remote control pneumatic optimization device suitable for the overhanging roof to control a driving device to drive an outer cylinder to rotate;
when the infrared remote controller is communicated with the infrared receiver to control the driving device to drive the outer cylinder to rotate, the outer cylinder is driven to rotate clockwise or anticlockwise according to the incoming flow wind direction, and the second air inlet in the outer cylinder is perpendicular to the incoming flow wind direction.
Furthermore, the driving device drives the outer barrel to rotate, so that when a second air inlet on the outer barrel is perpendicular to the incoming flow direction, the second air inlet is kept to be always positioned in the opening range of the first air inlet, and the first air outlet is kept to be always positioned in the opening range of the second air outlet.
Further, when the infrared remote controller is communicated with the infrared receiver to control the driving device to drive the outer cylinder to rotate, the infrared receiver of the remote control pneumatic optimization device suitable for the overhanging roof receives a signal to control the motor to drive the second air inlet to rotate 10 degrees clockwise, and every 10-degree rotation angle is taken as a working condition, and every time the infrared remote controller presses a start button; when the infrared remote controller is used for pressing the backward button, the infrared receiver receives a signal to control the motor to drive the second air inlet to rotate 10 degrees anticlockwise.
The embodiment of the invention has the beneficial effects that: the angle of the first air inlet can be adjusted according to different working condition requirements in a remote control mode, the position of the first air inlet is automatically changed, the air pressure distribution of the roof panel is further changed, the average wind load on the surface of the overhanging roof can be effectively reduced through verification of a wind tunnel test, and the problem that the existing pneumatic optimization device for the overhanging roof cannot change the angle and the position of an air inlet according to incoming currents of different wind directions and cannot well adapt to various working conditions is effectively solved. Reasonable structure, simple operation and convenient installation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a remote control pneumatic optimization device suitable for a cantilever roof in a wind tunnel test according to an embodiment of the present invention.
Fig. 2 is a schematic view of an external structure of a roller according to an embodiment of the present invention.
Fig. 3 is a schematic view of the internal structure of the roller according to the embodiment of the present invention.
FIG. 4 is a schematic perspective view of the inner and outer cylinders according to the embodiment of the present invention.
FIG. 5 is a side view of the inner and outer barrel structures of the embodiment of the present invention.
FIG. 6 is a plot of the distribution of the test points on the overhanging roof.
FIG. 7 is a diagram of the variation of the wind load amplitude of the layer at the point A.
FIG. 8 is a diagram of the variation of the wind load amplitude of the layer at the point B.
In the figure, 1, a cantilever roof, 2, a horizontal support, 3, a roller, 4, a second air inlet, 5, a second air outlet, 6, an inner cylinder, 7, an outer cylinder, 8, a rotating disc, 9, an outer layer of the roller, 10, an inner layer of the roller, 11, a fixed plate, 12, an infrared receiver, 13, a motor, 14, a gear and 15, a horizontal support rotating seam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the remote control pneumatic optimization device suitable for the overhanging roof according to the embodiment of the present invention includes an inner cylinder 6, an outer cylinder 7 and a driving device, as shown in fig. 4 to 5, the inner cylinder 6 is disposed at a front edge of the overhanging roof 1 and is fixedly connected with the overhanging roof 1, the outer cylinder 7 is sleeved on the inner cylinder 6 and is rotatably connected with the inner cylinder 6, a first air inlet and a first air outlet are disposed on a cylinder body of the inner cylinder 6, a second air inlet 4 and a second air outlet 5 are disposed on a cylinder body of the outer cylinder 7, a central angle corresponding to the second air inlet 4 is smaller than a central angle corresponding to the first air inlet, and a central angle corresponding to the first air outlet is larger than a central angle corresponding to the second air outlet 5; the outer cylinder 7 is fixedly connected with a driving device, and the driving device drives the outer cylinder 7 to rotate so as to change the position and the angle of the second air inlet 4 on the outer cylinder 7.
Further, first air outlet is located inner tube 6 top, and first air intake is located inner tube 6 and keeps away from 1 one side of overhanging roofing, and the profile line that just looks at from the side, and first air intake corresponds central angle coincides with the water flat line, and the profile line that first air outlet corresponds central angle is mutually perpendicular with the profile line that first air intake corresponds central angle. As shown in fig. 5, which is a schematic left view of the inner cylinder 6 and the outer cylinder 7, a three-dimensional spatial coordinate system is established with the central points of the inner cylinder 6 and the outer cylinder 7 as coordinate axes, the length directions of the inner cylinder 6 and the outer cylinder 7 as y-axes, and the vertical direction as z-axis, and it can be seen that the angular line of the first air inlet corresponding to the central angle coincides with the x-axis, and the angular line of the first air outlet corresponding to the central angle coincides with the z-axis.
Furthermore, when viewed from the side, the angle dividing line of the second air inlet 4 corresponding to the central angle is perpendicular to the angle dividing line of the second air outlet 5 corresponding to the central angle, so that the interference to the incoming flow and the wind direction is the largest.
Furthermore, the central angle corresponding to the first air inlet is 60 degrees, the central angle corresponding to the first air outlet is 10 degrees, the central angle corresponding to the second air inlet 4 is 10 degrees, the central angle corresponding to the second air outlet 5 is 60 degrees,
further, as shown in fig. 2 to 3, the driving device includes a roller 3, a rotating disc 8 and a motor 13, the roller 3 is composed of a roller inner layer 10 and a roller outer layer 9 partially sleeved thereon, and the roller outer layer 9 is rotatably connected with the roller inner layer 10; the end part of the superposed part of the outer roller layer 9 and the inner roller layer 10 is fixedly connected with one end of the outer cylinder 7, and the end part of the inner roller layer 10 far away from the superposed part of the outer roller layer 9 is fixedly connected with one end of the inner cylinder 6; an output shaft of the motor 13 is fixedly connected with the end part of the outer layer 9 of the roller far away from the overlapping part of the outer layer and the inner layer 10 of the roller through the rotating disc 8; specifically, the inner cylinder 6 is integrated with the inner roller layer 10, and the outer cylinder 7 is integrated with the outer roller layer 9. The driving motor 13 rotates, the motor 13 drives the outer layer 9 of the rolling shaft and the outer barrel 7 to rotate through the rotating disc 8, the angle and the position of the second air inlet 4 of the outer barrel 7 are changed, the air speed of the second air outlet 5 of the outer barrel 7 is changed, the air pressure distribution on the surface of the overhanging roof 1 is changed, and the surface wind load of the overhanging roof is reduced.
Further, the remote control pneumatic optimization device suitable for the overhanging roof of the embodiment of the invention further comprises an infrared receiver 12, wherein the infrared receiver 12 is used for receiving a remote control signal and controlling the motor 13 to start/stop working according to the received remote control signal.
Further, the remote control pneumatic optimization device suitable for the overhanging roof further comprises a horizontal support 2, the inner cylinder 6 is fixed at the front edge of the overhanging roof 1 through the horizontal support 2, and a horizontal support rotating seam 15 for avoiding the horizontal support 2 is formed in the outer cylinder 7, as shown in fig. 4.
Further, the remote control pneumatic optimization device suitable for the overhanging roof further comprises a fixing plate 11, the fixing plate 11 is installed in the inner cavity of the roller 3 and is fixedly connected with the roller inner layer 10, and the motor 13 is fixed on the fixing plate 11.
Further, the infrared receiver 12 is fixed to the fixing plate 11.
Further, the outer diameter of the roller inner layer 10 is consistent with that of the inner cylinder 6, and the outer diameter of the roller outer layer 9 is consistent with that of the outer cylinder 7.
Furthermore, the horizontal support 2, the roller 3, the inner cylinder 6, the outer cylinder 7, the rotating disc 8 and the fixing plate 11 are all made of Q235 steel or other similar materials, the density of the materials is 7.85kg/m, the materials are uniform, the weight is light, the strength is high, the plasticity and the toughness are good, and the dynamic impact of wind load can be borne.
Further, the motor 13 is fixedly connected with the rotating disc 8 through a gear 14 fixed on an output shaft of the motor, and the purpose of increasing the gear 14 is to increase the contact area between the motor 13 and the rotating disc 8, increase the rotating efficiency, and avoid fatigue and sliding of the device in long-term use.
When the device is used, the device is communicated with the infrared receiver 12 of the remote control pneumatic optimization device suitable for the overhanging roof through an infrared remote controller, and a driving device is controlled to drive the outer cylinder 7 to rotate; when the infrared remote controller is communicated with the infrared receiver 12 to control the driving device to drive the outer cylinder 7 to rotate, the outer cylinder 7 is driven to rotate clockwise or anticlockwise according to the incoming flow wind direction, so that the second air inlet 4 on the outer cylinder 7 is perpendicular to the incoming flow wind direction; and when drive arrangement drive urceolus 7 rotated, keep second air intake 4 to be located the opening range of first air intake all the time, keep first air outlet to be located the opening range of second air outlet 5 all the time, wind passes through second air intake 4 in proper order, first air intake, first air outlet, second air outlet 5 flows out, because the setting of the angle and the position of second air intake 4 and first air outlet, the wind speed of second air outlet 5 changes, the wind that flows out from second air outlet 5 forms the vortex, change the wind pressure distribution on overhanging roofing 1 surface, make the wind load on overhanging roofing 1 surface reduce.
When the rotation angle of every 10 degrees is taken as a working condition, an operator presses a start button by using an infrared remote controller, the infrared receiver 12 receives a signal to control the motor 13 to rotate 10 degrees clockwise, and the motor 13 drives the rotating disc 8 to rotate 10 degrees anticlockwise to drive the second air inlet 4 to rotate 10 degrees clockwise; when an operator presses the back button by using the infrared remote controller, the infrared receiver 12 receives a signal to control the motor 13 to rotate 10 degrees anticlockwise, the motor 13 drives the rotating disc 8 to rotate 10 degrees anticlockwise to drive the second air inlet 4 to rotate 10 degrees anticlockwise, and the rotating angle of the second air inlet 4 can be increased or reduced according to requirements when the back button and the start button are pressed once.
Under normal conditions, when the incoming flow of the windward side increases to a certain value, the overhanging roof 1 can suck and press upwards, and the overhanging roof 1 is damaged by turning over of wind load. When the actual working condition of the wind tunnel is the front incoming flow and the wind direction is perpendicular to the front edge of the overhanging roof 1, the remote control pneumatic optimization device suitable for the overhanging roof is arranged at the front edge of the overhanging roof 1, the angle of the second air inlet 4 is made to be +10 degrees, namely the second air inlet 4 with the central angle of 10 degrees is positioned above a horizontal line, the bottom end of the second air inlet 4 is overlapped with the horizontal line, so that the air flow of the second air outlet 5 interferes with the wind pressure distribution on the surface of the overhanging roof 1, the surface wind load of the overhanging roof 1 is reduced, and the overhanging roof 1 is prevented from being turned over by the wind load. In order to measure the change of the wind load amplitude of the surface of the overhanging roof 1, seven measuring point layers A-H are arranged on the overhanging roof 1, each measuring point layer is provided with 15 measuring points, the distance between the measuring point layer on the edge and the side line lcm of the overhanging roof 1 is 5cm in the extension direction, and the distance between the measuring point layer and the side line lcm is 4cm in the width direction, as shown in FIG. 6. Taking the point A layer and the point B layer which are closest to the remote control pneumatic optimization device for the overhanging roof in the embodiment of the invention as an example, the wind load amplitude change is shown in figures 7-8, the optimization device is a practical remote control pneumatic optimization device for the overhanging roof, a circular hole is a seamless pipe with circular array holes, the inclination angle of the seamless pipe with the circular array holes is +10 degrees, and as can be seen from figures 7-8, compared with the existing seamless pipe with the array holes, after the remote control pneumatic optimization device for the overhanging roof in the embodiment of the invention is adopted, the wind load on the surface of the overhanging roof 1 can be reduced by about 40 percent to the maximum extent, and the pneumatic optimization effect on the surface of the overhanging roof 1 is obvious. And when aiming at different working conditions in the wind tunnel experiment, the position and the angle of the second air inlet 4 can be adjusted by rotating the remote control motor 13, the operation is simple, the remote control motor can be applied to the wind tunnel experiment and can also be applied to the actual large-span overhanging roof to protect the large-span overhanging roof, and the position of the second air inlet 4 is remotely controlled according to the incoming wind direction, so that the pneumatic optimization is optimal, the operation is simple, and the pneumatic optimization effect is good.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A remote control pneumatic optimization device suitable for overhanging roof is characterized by comprising
Inner tube (6), inner tube (6) set up in the front edge department of roofing (1) of encorbelmenting and with roofing (1) fixed connection encorbelments, first air intake and first air outlet have been seted up to the stack shell of inner tube (6) to and
the outer cylinder (7) is sleeved on the inner cylinder (6) and is rotatably connected with the inner cylinder (6), and a second air inlet (4) and a second air outlet (5) are formed in the cylinder body of the outer cylinder (7); and
the driving device is connected with the outer cylinder (7) to drive the outer cylinder (7) to rotate; wherein the content of the first and second substances,
the central angle corresponding to the second air inlet (4) is smaller than that corresponding to the first air inlet, and the central angle corresponding to the first air outlet is larger than that corresponding to the second air outlet (5).
2. The remote control pneumatic optimization device suitable for the overhanging roof is characterized in that the first air outlet is positioned at the top of the inner cylinder (6), the first air inlet is positioned at one side, away from the overhanging roof (1), of the inner cylinder (6), and when viewed from the side, a partial angle line of the first air inlet, corresponding to a central angle, is superposed with a horizontal line, and a partial angle line of the first air outlet, corresponding to the central angle, is perpendicular to a partial angle line of the first air inlet, corresponding to the central angle.
3. The remote-controlled pneumatic optimization device for the overhanging roof is characterized in that the angular line of the second air inlet (4) corresponding to the central angle is perpendicular to the angular line of the second air outlet (5) corresponding to the central angle when viewed from the side.
4. The remote controlled pneumatic optimization device for the overhanging roof of claim 1, wherein the first air inlet corresponds to a central angle of 60 ° and the first air outlet corresponds to a central angle of 10 °;
the central angle corresponding to the second air inlet (4) is 10 degrees, and the central angle corresponding to the second air outlet (5) is 60 degrees.
5. The remote control pneumatic optimization device suitable for the overhanging roof is characterized in that the driving device comprises a roller (3), a rotating disc (8) and a motor (13), the roller (3) consists of a roller inner layer (10) and a roller outer layer (9) partially sleeved on the roller inner layer (10), and the roller outer layer (9) is rotatably connected with the roller inner layer (10); the end part of the superposed part of the outer roller layer (9) and the inner roller layer (10) is fixedly connected with one end of the outer cylinder (7), and the end part of the inner roller layer (10) far away from the superposed part of the inner roller layer (9) and the outer roller layer is fixedly connected with one end of the inner cylinder (6); an output shaft of the motor (13) is fixedly connected with the end part of the outer layer (9) of the rolling shaft, which is far away from the overlapping part of the outer layer (9) of the rolling shaft and the inner layer (10) of the rolling shaft, through the rotating disc (8).
6. The remote control pneumatic optimization device suitable for the overhanging roof is characterized by further comprising a fixing plate (11), wherein the fixing plate (11) is installed in an inner cavity of the roller (3) and is fixedly connected with the roller inner layer (10), and the motor (13) is fixed on the fixing plate (11);
the outer diameter of the roller inner layer (10) is consistent with that of the inner cylinder (6), and the outer diameter of the roller outer layer (9) is consistent with that of the outer cylinder (7).
7. The remote control pneumatic optimization device for the overhanging roof is characterized by further comprising an infrared receiver (12), wherein the infrared receiver (12) is used for receiving a remote control signal and controlling a motor (13) of a driving device to start/stop working according to the received remote control signal;
the motor (13) is fixedly connected with the rotating disc (8) through a gear (14) fixed on an output shaft of the motor;
the inner barrel (6) is fixed at the front edge of the overhanging roof (1) through the horizontal support (2), and the outer barrel (7) is provided with a horizontal support rotating seam (15) used for avoiding the horizontal support (2).
8. The use method of the remote control pneumatic optimization device for the overhanging roof is characterized in that the infrared remote controller is communicated with the infrared receiver (12) of the remote control pneumatic optimization device for the overhanging roof, and the driving device is controlled to drive the outer cylinder (7) to rotate;
when the infrared remote controller is communicated with the infrared receiver (12) to control the driving device to drive the outer cylinder (7) to rotate, the outer cylinder (7) is driven to rotate clockwise or anticlockwise according to the incoming wind direction, so that the second air inlet (4) on the outer cylinder (7) is perpendicular to the incoming wind direction.
9. The use method of the remote control pneumatic optimization device suitable for the overhanging roof is characterized in that the driving device drives the outer cylinder (7) to rotate, so that when the second air inlet (4) on the outer cylinder (7) is perpendicular to the incoming air direction, the second air inlet (4) is always positioned in the opening range of the first air inlet, and the first air outlet is always positioned in the opening range of the second air outlet (5).
10. The use method of the remote control pneumatic optimization device suitable for the overhanging roof is characterized in that when the infrared remote controller is communicated with the infrared receiver (12) to control the driving device to drive the outer cylinder (7) to rotate, and every 10-degree rotation angle is taken as a working condition, the infrared remote controller is used to press a start button, and the infrared receiver (12) of the remote control pneumatic optimization device suitable for the overhanging roof receives a signal to control the motor (13) to drive the second air inlet (4) to rotate 10 degrees clockwise; when the infrared remote controller is used, each time the back button is pressed, the infrared receiver (12) receives a signal to control the motor (13) to drive the second air inlet (4) to rotate 10 degrees anticlockwise.
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