CN209539079U - A kind of prefabricated screen window window of double frame sharp drafts of twin shaft - Google Patents

Abstract

A kind of prefabricated screen window window of double frame sharp drafts of twin shaft, outer rim connect interior frame by rotation mechanism in vertical shaft attachment device, and interior frame connects glass hoop by longitudinally rotating mechanism attachment device, fixes tempering hollow glass in glass hoop；Outer rim handle is installed below outer rim, rotation mechanism in vertical shaft attachment device connects outer rim handle, interior frame handle is installed on the right side of interior frame, longitudinally rotate mechanism attachment device connection interior frame handle, when window is closed, this two groups of rotating mechanism attachment devices under the action of rotating mechanism attachment device, can be rotated in perpendicular when glass is with glass hoop one around trunnion axis；When glass pane frame and interior frame card are an entirety, window can be rotated around vertical axes.Be adapted to different building orientations, the wind direction of Various Seasonal, suitable for windward to, it is leeward to metope, the window with intensified ventilation rate of ventilation plays the role of building thermal-insulation energy-saving, is conducive to the two sides of cleaning glass.

Description

A dual-axis double-frame strong ventilation prefabricated screen window

technical field

The utility model belongs to the technical field of doors and windows in civil engineering construction, in particular to a prefabricated screen window with double shafts and double frames for strong ventilation.

Background technique

The window is a building decoration structure for indoor ventilation, changing indoor airflow organization and lighting and heating. It is generally composed of a frame placed in the building maintenance structure and glass embedded in the frame. General civil building windows are affected by various factors such as orientation, but most of the existing building windows are flat opening, top opening, landing, vertical opening, horizontal opening, single side opening and sliding windows; top opening windows are suitable for ventilation in the leeward direction, The ventilation effect is good, but the ventilation and lighting area is insufficient. In addition, regardless of whether it is opened horizontally, top-opened, floor-to-ceiling, horizontally opened, unilaterally opened, or pushed and pulled, the windows cannot flexibly adapt to the wind direction, and the ventilation effect is not good. Especially in urban areas, some windows are installed in the leeward direction, and the seasonal wind On the downstream side, at this time, the general window hinders the flow rate of the air, reduces the air flow rate, reduces the number of air changes, the indoor environment comfort is significantly reduced, and the air temperature, humidity, and cleanliness indicators decrease, which will cause discomfort to the human body a feeling of.

The windows of general civil buildings, after the installation is completed, have indoor and outdoor sides; the side facing the indoor glass is easy to clean, but there is a safety hazard and inconvenience when cleaning the side facing the outdoors. In addition, after the existing windows have been installed and used for a long time, the dust attached to the glass surface due to condensed water will be adsorbed on the glass, especially after a stormy day; the glass will leave water stains after the window grilles are heated and melted in winter, affecting the appearance. Perspective effect and lighting effect; so the windows need to be cleaned irregularly. Therefore, just need a kind of window that is convenient to two-sided cleaning.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to provide a double-axis double-frame strong ventilation prefabricated screen window, which solves the problem of the flow rate of the air in the above-mentioned problems, increases the air flow rate, and promotes the number of air changes. Improve the comfort of the indoor environment, adjust the temperature, humidity, and cleanliness of the indoor air; and clean up the safety hazards.

In order to achieve the above object, the technical solution adopted by the utility model is:

A prefabricated screen window with double shafts and double frames for strong ventilation, including an outer frame, the outer frame is connected to the inner frame through a horizontal rotation mechanism connection device, the inner frame is connected to a glass hoop through a longitudinal rotation mechanism connection device, and tempered hollow glass is fixed inside the glass hoop; the outer frame The outer frame handle is installed at the bottom, the horizontal rotation mechanism connection device is connected to the outer frame handle, the inner frame handle is installed on the right side of the inner frame, and the longitudinal rotation mechanism connection device is connected to the inner frame handle; there is an internal upper attached screen window between the inner frame and the tempered hollow glass , there is an inner lower attached screen window at the bottom, an inner screen window upper left folding screen window at the upper left side, an inner screen window lower left folding screen window at the lower left side, an inner screen window upper right folding screen window at the upper right side, and an inner screen window upper right folding screen window at the lower right side The lower part of the inner screen window is folded on the right, the upper part of the inner screen window has a lower magnetic strip, and the upper part of the inner screen window has an upper magnetic strip that is adsorbed on the inner frame; between the outer frame and the inner frame, there is an upper left folding screen window on the left part of the outer screen window, and the upper right side is set There is an upper folding screen window on the right part of the outer screen window, a lower folding screen window on the left part of the outer screen window on the lower left side, a lower folding screen window on the right part of the outer screen window on the lower right side, a left part of the outer screen window on the left side, and a right part of the outer screen window on the right side , the right magnetic strip on the left part of the outer screen window and the left magnetic strip on the right part of the outer screen window are adsorbed on the outer frame.

The handle of the inner frame is provided with a limit mechanism, the limit mechanism is installed under the handle, and is composed of a spring pin and a pull plate. One end of the bolt is connected to the pull plate, and the other end is inserted into the through hole provided by the gear collar. The gear collar is connected to the gear slot, and the hexagonal prism shaft is connected to the longitudinal rotation mechanism through the gear collar connector and the gear slot on the window frame. The device is connected, the hexagonal prism rotating shaft is snapped into the regular hexagonal gear collar along the axis, and this combination is inserted into the gear slot on the window frame as a whole along the axis; the spring latch is inserted along the radial direction of the rotating mechanism, and the frame A through hole is provided, and the pull plate of the limit mechanism is connected with the spring pin by screws, and the upper end of the pull plate is connected with the handle of the inner frame through the prefabricated hole by screws, and the screw is used as a rotating shaft, and the pull plate can be rotated.

The cross-section of the inner wall of the through hole of the gear collar is cylindrical.

The tempered insulating glass and the glass hoop are fastened and connected by gluing together; the outer frame and the building envelope are connected by means of grooves reserved for the envelope and glue injection with screws.

The beneficial effects of the utility model are:

The frame and the inner frame are connected together by a rotating mechanism connecting device. Under the action of the connecting device of the rotating mechanism, the window glass can rotate around the horizontal axis; when the inner frame and the connecting device of the rotating mechanism of the window glass are connected together, they can rotate around the vertical axis. Such biaxial rotating windows can adjust the opening degree and opening direction in real time according to the building orientation and seasonal wind direction, strengthen the number of indoor air changes, increase the air flow rate, solve the problem of air flow speed, improve the comfort of the indoor environment, and adjust the indoor air flow. Temperature, humidity, cleanliness and safety hazards of glass surface cleaning.

Description of drawings

Fig. 1 is the schematic diagram of the plane structure of the utility model window;

Fig. 2 is the schematic diagram that the utility model window is opened along the horizontal axis;

Fig. 3 is the schematic diagram that the utility model window is opened along the vertical axis;

Fig. 4 is a schematic diagram of the planar structure of the attached screen window when the window of the present invention is opened along the horizontal axis;

Fig. 5 is the opening state diagram of the screen window when the window of the utility model is opened along the horizontal axis;

Fig. 6 is a schematic diagram of the opening direction of the screen window when the window of the utility model is opened along the horizontal axis;

Fig. 7 is a schematic diagram of the plane structure of the external screen window when the window of the present invention is opened along the vertical axis;

Fig. 8 is the opening state diagram of the screen window when the window of the utility model is opened along the vertical axis;

Fig. 9 is a schematic diagram of the opening direction of the screen window when the window of the utility model is opened along the vertical axis;

Fig. 10 is a schematic plan view of the window handle of the present invention;

Fig. 11 is a schematic diagram of looking up the window handle of the present utility model;

Fig. 12 is a schematic diagram of the gear slot on the window frame of the window rotation mechanism connecting device of the present invention;

Fig. 13 is a schematic diagram of the gear collar of the connecting device part of the window rotation mechanism of the present invention;

Fig. 14 is a schematic diagram of the rotating shaft of the hexagonal prism of the connecting device part of the window rotating mechanism of the present invention;

Fig. 15 is a schematic diagram of the spring latch of the connecting device part of the window rotation mechanism of the present invention;

Fig. 16 is a schematic diagram of the connection device of the longitudinal rotation mechanism of the connecting device of the window rotation mechanism of the utility model;

Fig. 17 is a schematic diagram of the principle of the window limiting mechanism of the present invention;

Among them, 1 is the building envelope; 2 is the outer frame; 3 is the inner frame; 4 is the glass hoop; 5 is the connection device of the longitudinal rotation mechanism; 6 is the handle of the inner frame; 7 is the tempered hollow glass; 8 is the handle of the outer frame; 9 is the connection device of the horizontal rotation mechanism; 10 is the screen window attached to the upper part of the interior; 11 is the right folded screen window on the upper part of the inner screen window; 2 is the lower magnetic strip on the upper part of the inner screen window; 13 is the lower attached screen window inside; 16 is the upper magnetic strip on the lower part of the inner screen window; 17 is the left folding screen window on the upper part of the inner screen window; 18 is the upper folding screen window on the left part of the outer screen window; 19 is the right magnetic strip on the left part of the outer screen window; 20 is the outer screen window Left part; 21 is the folded screen window on the left part of the outer screen window; 22 is the folded screen window on the right part of the outer screen window; 23 is the left magnetic strip on the right part of the outer screen window; 24 is the glass hoop; 25 is the right part of the outer screen window; Folding screen window; 27 is a spring latch pull plate; 28 is a gear slot on the window frame; 29 is a gear collar; 30 is a hexagonal prism rotating shaft; 31 is a spring latch.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 schematically shows an embodiment of the present invention: a structure of a double-axis double-frame strong ventilation prefabricated screen window.

Rotate with the horizontal axis as embodiment 1;

As shown in Fig. 1, Fig. 4 and Fig. 7, a plan view of a prefabricated screen window with dual-axis and double-frame strong ventilation, which includes an outer frame 2 with a width of 35mm, an outer frame rotation mechanism connecting device 9, an inner frame with a width of 30cm, and an inner frame with a width of 30 cm. Rotating mechanism connection device 5, handle 6, limit mechanism 27, inner transparent screen window 13, outer transparent screen window 20 and window glass 7 are 1.23 m wide and 1.48 m high; there is a rotating mechanism connecting device 9 between the outer frame 2 and the inner frame 3 , there is also a turning mechanism connecting device 5 between the inner frame and the glass hoop; when the window was closed, these two groups of turning mechanism connecting devices were in the same vertical plane, and the axes of these two groups of turning mechanism connecting devices were perpendicular to each other.

In this embodiment: as shown in Figures 10, 11, 12, 13, 14, 15, 16, and 17, the limit mechanism 27 is installed on the lower 6 sides of the handle and is composed of a spring latch 31 and a pull plate. Prefabricated swivel sleeve. A limit mechanism 27 is set inside the handle, a through hole is provided at the exact part of the frame, and a through hole is provided on the gear collar 29 connector, and the inner wall section of the through hole is cylindrical, which is suitable for the spring latch 31 matching cylindrical holes. The regular hexagonal prism rotating shaft 30 is connected with the handle 5 through the regular hexagonal gear collar 29 connector, the gear slot 28 on the window frame, and the regular hexagonal prism rotating shaft 30 is aligned and snapped into the regular hexagonal gear collar 29 along the axis; This assembly as a whole is inserted into the gear slot 28 on the window frame in alignment along the axis. The spring pin 31 is inserted along the radial direction of the rotating mechanism; the limit mechanism 27 is a structure in which the whole of the light round steel bar and the spring are welded and the pull plate is connected by screws.

In this embodiment: the pull plate of the limit mechanism 27 is connected with the spring pin 31 by screws. The upper end of the pull plate is connected with the handle 6 through the prefabricated hole by a screw, and the screw is used as a rotating shaft, and the pull plate is rotatable.

In this embodiment, the rotating mechanism connecting device 5 is built-in, and when one hand pulls the right rotating mechanism connecting device 5, the effect of the limiting mechanism 27 is canceled at the same time, and the spring latch 31 is pulled up. The horizontal rotating mechanism connecting device 5 can be movable, so the glass hoop 24 of the window can rotate around the horizontal axis independently under the action of the horizontal rotating mechanism connecting device at this time; the rotation angle is limited by the limiting mechanism, and each locking position can be rotated 15°, a total of 6 card slots can be rotated 90°. The other hand pushes or pulls the lower handle 8, and the glass hoop 24 gradually intersects with the inner frame 3 and forms an angle, here taking 45 degrees as an example, let the window rotate to 45 degrees, let go of both hands, and the limit mechanism 27 works , Spring latch enters through hole by 31, and window is stuck to this state as Fig. 2.

After the window is opened, remove the upper magnetic strip 16 at the bottom of the inner screen window and the lower magnetic strip 12 at the upper part of the inner screen window and place them in parallel to the upper and lower sides of the inner window frame. At this moment, the right folded screen window 11 at the top of the inner screen window and the right folded screen window 14 at the bottom of the inner screen window opened and blocked two triangular areas on the right side of the window. In the same way, the left folded screen window 17 at the top of the inner screen window and the left folded screen window 15 at the bottom of the inner screen window are also opened to block the two triangular areas on the left side of the window. This blocks all the openings and prevents pollutants such as mosquitoes, flies and leaves from entering the room.

In Fig. 2, the upper and lower parts of the inner screen window are fixed and glued on the glass hoop 24, so the upper and lower sides of the glass hoop 24 have no folding screen window. The upper part flips the screen window around the glass hoop 24 tops and rotates the parallel magnetic force to adsorb the upper side of the inner window frame, and the lower part turns the screen window around the glass hoop 24 bottoms and rotates the parallel magnetic force to adsorb the inner window frame underside.

Rotate with the vertical axis as embodiment 2;

As shown in Fig. 1, Fig. 4 and Fig. 7, a plan view of a double-axis double-frame strong ventilation prefabricated screen window, which includes an outer frame (2) with a width of 35mm, an outer frame rotation mechanism connection device (9), and an inner frame with a width of 30cm (3), inner frame rotating mechanism connection device (5), handle 6, limit mechanism 27, inner transparent screen window 13, outer transparent screen window 20 and window glass 7 are 1.23 m wide and 1.48 m high; the outer frame (2) and the inner There is a rotating mechanism connecting device (9) between the frames (3), and a rotating mechanism connecting device (5) between the inner frame and the glass hoop; when the window is closed, these two groups of rotating mechanism connecting devices are in the same vertical plane, so The axes of the connecting devices of the two groups of rotating mechanisms are perpendicular to each other.

In this embodiment: for the limiting mechanism 27 and the connecting device 9 of the rotating mechanism; since the two limiting mechanisms and the four connecting devices of the rotating mechanism have the same structure, they will not be described in detail here.

In the present embodiment, the rotating mechanism connecting device (9) is built-in, and when one hand pulls the lower rotating mechanism connecting device 5, the effect of the limit mechanism 27 is canceled simultaneously, and the spring latch 31 is pulled up. The vertical rotation mechanism connection device 9 can be movable, so the window glass 7 and the inner frame 3 can rotate around the vertical axis under the effect of the vertical rotation mechanism connection device as a combined whole; the rotation angle is limited by the limit mechanism, One card slot can be rotated 15° at a time, and a total of 6 card slots can be rotated 90°. The other hand pushes or pulls the right handle 8, and the window glass 7 and the inner frame 3 gradually intersect with the outer frame 2 as a whole and form an angle. Here, 45 degrees is taken as an example, and the window is rotated to 45°. Let go, the limit mechanism 27 works, and the spring latch enters the through hole by 31, and the window is stuck in this state as shown in Figure 3. Then take off the outer screen window left magnetic strip 19 and the outer screen window right magnetic strip 23 and place them in parallel respectively on the left and right sides of the outer window frame. Fold screen window 18 on the left side of the outer screen window this moment, fold down screen window 21 on the left side of the outer screen window and open the two triangular regions that have blocked the left side of the window. In the same way, the upper folded screen window 22 on the right part of the outer screen window and the lower folded screen window 26 on the right part of the outer screen window also open and block the two triangular areas on the right side of the window. This blocks all the openings and prevents pollutants such as mosquitoes, flies and leaves from entering the room.

In Fig. 7, the left and right parts of the outer screen window are fixed and glued on the glass hoop 24, so there is no folding screen window on the left and right sides of the glass hoop 24. The left part flips the screen window around the glass hoop 24 left parts and rotates the parallel magnetic force to be adsorbed on the left side of the outer window frame, and the right part turns the screen window around the glass hoop 24 right parts and rotates the parallel magnetic force to be adsorbed on the inner window frame right side.

In Embodiment 1 and Embodiment 2, the inner side of the outer frame 2 and the inner edge of the inner frame 3 are provided with waterproof and windproof strips, and the waterproof strips of the outer frame 2 and the edges of the inner frame 3 are attached to each other, and the inner frame 3 The waterproof strip and glass hoop 24 edges fit each other. Therefore, under the setting of the waterproof strip, rainwater and airflow can be prevented from leaking in;

The screen window of the window is composed of a transparent coarse-effect filter screen and magnetic strips 12 on four sides. The magnetic strip 12 and the frame of the screen window are attached to the glass due to magnetic tension, and the side transparent screen 17 is used to prevent the window from opening. When the window is closed, the folded screen window is pressed in the middle by the magnetic force between the screen window edge magnetic strip 12 and the frame and attached to the frame. The window screens are magnetically adsorbed to the window frame after opening the corresponding screens as needed, to prevent mosquitoes, flies, leaves and other pollutants from entering the room.

There is a rotating mechanism connecting device between the outer frame and the inner frame, and there is also a rotating mechanism connecting device between the inner frame and the glass hoop; when the window is closed, when the two sets of rotating mechanism connecting devices are on the same plane, the axes of the two groups are vertical . The glass hoop of the window can rotate around the horizontal axis alone; when the glass hoop of the window can be combined with the inner frame as a whole, the window can rotate around the vertical axis. The rotating mechanism is built-in. Under the action of the connecting device of the rotating mechanism, the window can be opened horizontally and vertically, and the rotation angle is limited by the limit mechanism; there is a spring latch pull plate under the handle of the window frame, and the provided latch passes through The through hole runs through to the hexagonal prism shaft. When the window is opened and closed, the latch is pulled up, the rotating device can be rotated, and the window can be moved.

In some embodiments, a group corresponding to the connecting device of the rotating mechanism is located on the same plane and the same axis, and when the window is fully closed, the two axes are perpendicular to each other on the same plane. The turning mechanism includes a hexagonal prism shaft, a gear collar and a gear slot on the window frame. In this way, the three parts of the connecting device of the rotating mechanism are nested and combined. This setting is to prevent the window from being turned over randomly with the airflow, and it can also control the rotation angle between the glass hoop and the inner frame, and the inner frame and the outer frame, thereby resisting excessive wind force. . And the outer frame and the inner frame are connected together by the connecting device of the rotating mechanism, and under the effect of the connecting device of the rotating mechanism, the window glass can rotate around the vertical axis; rotate around a horizontal axis;

In order to enable the handle to drive the glass frame structure, or the integral structure of the inner frame and the glass frame to rotate, the regular hexagonal prism rotating shaft is connected to the handle through a regular hexagonal gear collar connector, and the handle includes a handle cap and a limiter located inside the handle Institutional connections. The precise part of the frame is provided with a through hole, and the gear collar connector is provided with a through hole, and the inner wall cross section of the through hole is a regular hexagon matching the convex part of the regular hexagonal prism.

As the preference of the limit mechanism, the limit mechanism is installed under the handle and built in, which includes a spring latch and a pull plate. There are pin holes for pins passing through the handles of the inner and outer frames, and there are prefabricated rotating sleeves on the pull plate.

The handle comprises a handle and a limit mechanism arranged inside the handle, and the limit mechanism is connected by a pull plate and a spring pin by means of screws. The upper end of the pull plate is connected with the handle through the prefabricated hole by screws, and the pull plate is rotatable by means of the screws as a rotating shaft.

As a preference of the connection device of the above-mentioned rotating mechanism, the rotating mechanism includes a regular hexagonal prism rotating shaft, a regular hexagonal gear collar and a gear slot on the window frame. The rotating shaft of the regular hexagonal prism is snapped into the regular hexagonal gear collar in alignment along the axis; the assembly as a whole is inserted into the gear slot on the window frame in alignment along the axis. The spring latch is inserted along the radial direction of the rotating mechanism; the limit mechanism is a structure in which the whole of the light round steel bar and the spring are welded and the pull plate is connected by screws.

In actual implementation, the edges of the outer frame and the inner frame are provided with waterproof and windproof rubber strips, and the waterproof and windproof rubber strips on the edges of the outer frame and the inner frame are attached to each other, so that the outer frame and the inner frame, and the inner frame and the glass frame are more coordinated. Tight, can prevent rainwater and wind from seeping in, play the role of heat preservation and moisturizing, and reduce the air leakage rate of the building envelope.

The fastening connection method of glass and glass hoop is glued together; the outer frame and the maintenance structure adopt the reserved groove of the enclosure structure, and the screws are glued into the connection.

The glass is made of double-layer tempered glass and glass hoop glued together and vacuum-sealed.

The screen window of the window is composed of a transparent coarse-effect filter and magnetic strips on the four sides. When the window is closed, the magnetic strip and frame on the edge of the screen window are attached to the glass due to magnetic tension. The side transparent screen is used to block the side of the window when it is opened. In the triangular area, when the window is closed, the folded screen window is pressed in the middle by the magnetic force between the screen edge magnetic strip and the frame and attached to the frame. The window screens are magnetically adsorbed to the window frame after opening the corresponding screens as needed, to prevent mosquitoes, flies, leaves and other pollutants from entering the room.

The double-axis double-frame strong ventilation prefabricated screen window has only two handles outside the window, and the structure is simple and the operation is convenient.

The double-axis double-frame strong ventilation prefabricated screen window can be easily opened by two-axis rotation and can be fixed at a specific angle, which is convenient for users to clean the rotating window.

Claims (4)

1. A dual-axis double-frame strong ventilation prefabricated screen window, including an outer frame (2), characterized in that the outer frame (2) is connected to the inner frame (3) through a horizontal rotation mechanism connection device (9), and the inner frame (3) ) is connected to the glass hoop (4) through the longitudinal rotation mechanism connection device (5), and the tempered hollow glass (7) is fixed inside the glass hoop (4); the outer frame handle (8) is installed under the outer frame (2), and the horizontal rotation mechanism connection device (9) Connect the outer frame handle (8), install the inner frame handle (6) on the right side of the inner frame (3), and connect the longitudinal rotation mechanism connecting device (5) to the inner frame handle (6); the inner frame (3) and the tempered hollow Between the glass (7) there is an inner upper attached screen window (10) on the upper side, an inner lower attached screen window (13) on the lower side, an upper left folding screen window (17) on the upper left side of the inner screen window, and an inner screen window on the lower left side The lower left folding screen window (15), the upper right side is provided with the inner screen window, the upper right folding screen window (11), the lower right side is provided with the inner screen window lower right folding screen window (14), the inner screen window upper lower magnetic strip (12), the inner screen window The upper magnetic strip (16) on the lower part is adsorbed on the inner frame (3); the upper left side between the outer frame (2) and the inner frame (3) is provided with an outer screen window (18) which is folded on the left part of the outer screen window, and the upper right side is provided with a There is an upper folding sand window (22) on the right part of the outer screen window, a lower folding sand window (21) on the left side of the outer screen window, and a lower folding sand window (26) on the right side of the outer screen window, and an outer folding sand window (26) on the left side. Screen window left part (20), the right side is provided with outer screen window right part (25), and outer screen window left part right magnetic strip (19), outer screen window right part left magnetic strip (23) are adsorbed on the outer frame (2). 2. A double-axis double-frame strong ventilation prefabricated screen window according to claim 1, characterized in that, the handle (6) of the inner frame is provided with a limit mechanism (27), and the limit mechanism (27) Installed under the handle (6) and built in, it consists of a spring pin (31) and a pull plate. There is a prefabricated rotating sleeve on the pull plate that fits the spring pin (31) and a cylindrical hole, and the spring pin (31) is connected at one end pull plate, the other end is inserted into the gear collar (29) and provided with a through hole, the gear collar (29) is connected with the gear slot (28), and the hexagonal prism rotating shaft (30) passes through the gear collar (29) connector, The gear slot (28) on the window frame is connected with the connecting device (5) of the longitudinal rotation mechanism. The axial alignment is inserted into the gear slot (28) on the window frame; the spring pin (31) is inserted along the radial direction of the rotating mechanism, the frame (3) is provided with a through hole, the pull plate of the limit mechanism (27) and the spring pin (31) Rely on the screw connection, the top of the pull plate is connected with the inner frame handle (6) through the prefabricated hole by the screw, and the pull plate can be rotated by relying on the screw as the rotating shaft. 3. The dual-axis double-frame strong ventilation prefabricated screen window according to claim 1, characterized in that the cross-section of the inner wall of the through hole of the gear collar (29) is cylindrical. 4. A dual-axis double-frame strong ventilation prefabricated screen window according to claim 1, characterized in that the tempered insulating glass (7) and the glass hoop (4) are fastened and connected by gluing together; The above-mentioned outer frame and the building envelope (1) adopt the reserved groove of the envelope structure, and the screws are glued to connect.