Angle adjusting structure of smoke exhaust window
By designing the angle adjustment structure of the smoke exhaust window, combined with the automatic window opening structure and the anti-theft net, the existing smoke exhaust windows have solved the shortcomings in the high-ventilation and smoke exhaust requirements and anti-theft performance, and achieved more efficient lighting, ventilation, smoke exhaust and convenient remote control.
Patent Information
- Application Number
- CN202421526603.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing smoke exhaust windows are difficult to meet the high-ventilation and smoke exhaust needs of special buildings such as banks. At the same time, it is inconvenient to switch the smoke exhaust windows at a height, and it is difficult to take into account both lighting and anti-theft performance.
An angle adjustment structure for smoke exhaust windows is designed, including a window frame system of the outer frame and the inner frame. A first automatic window opening structure is set between the inner frame and the form, a second automatic window opening structure is set between the outer frame and the inner frame, and an anti-overopening component and an anti-theft network are set between the inner frame and the outer frame to realize angle adjustment, remote control and anti-theft functions.
Through the angle adjustment structure, the lighting, ventilation and smoke exhaust capability of the smoke exhaust window is enhanced, and the anti-theft performance is improved through the anti-theft net and anti-overopening components, which realizes remote control and is more convenient to use.
Smart Images
Figure CN222810625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building decoration, in particular to an angle adjustment structure of a smoke exhaust window. Background Art
[0002] Smoke exhaust windows are commonly used structures in the construction industry. There are smoke exhaust skylights installed on the roof, and there are also ordinary smoke exhaust windows installed on the facade, which can achieve lighting and ventilation inside and outside the building and meet the lighting, ventilation and smoke exhaust needs of the building.
[0003] At present, the smoke exhaust windows currently available on the market that are installed on the facades of buildings include sliding windows, casement windows and top-and-bottom hung windows. Just like the smoke exhaust windows we see in daily life, sliding windows are provided with slide rails on the window frames, and the window body is installed on the slide rails. Users can push and pull the window horizontally to make the window slide on the slide rails to achieve horizontal opening and closing of the window; casement windows are installed with one side or the upper and lower sides of the window body on the columns of the window frame through hinges, and users can flip and open or close the window by pushing or pulling back the other side of the window; top-and-bottom hung windows are installed with both sides of the top or bottom of the window body on the crossbeam or bottom beam of the window frame through hinges, and users can also flip and open or close the window by pushing or pulling back the unhinged bottom or top of the window. Although the smoke exhaust windows of the above structures can meet the lighting, ventilation and smoke exhaust requirements under normal circumstances, for some buildings with specific attributes, such as the smoke exhaust windows on bank buildings, the ventilation and smoke exhaust requirements are large, and they also need to have lighting and anti-theft performance. If the existing smoke exhaust windows on the market are directly used, it is obviously difficult to meet the use requirements in the above special circumstances with only the functions of lighting, ventilation and smoke exhaust. In addition, for buildings with special attributes such as banks, their smoke exhaust windows are usually installed at a high position, which is inconvenient when opening and closing the smoke exhaust windows, which is not conducive to the use of the smoke exhaust windows. Summary of the invention
[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide an angle adjustment structure for a smoke exhaust window, so as to set a window frame including an outer frame and an inner frame, the inner frame being arranged in the outer frame, and the window body being installed on the inner frame, and at the same time, a first automatic window opening structure is arranged between the inner frame and the window, and a second automatic window opening structure is arranged between the outer frame and the inner frame, in addition, an anti-over-opening component is arranged between the inner frame and the outer frame, and an anti-theft net is arranged on the inner frame, and under normal circumstances, lighting, ventilation and smoke exhaust can be achieved by opening the window, and when the demand for ventilation and smoke exhaust is large, the inner frame can be opened relative to the outer frame to achieve angle adjustment of the smoke exhaust window and enhance the lighting, ventilation and smoke exhaust capabilities. At the same time, the anti-theft properties are improved by the anti-theft net and the anti-over-opening component, and in addition, remote control of the opening and closing of the smoke exhaust window is achieved by the first automatic window opening structure and the second automatic window opening structure, which is more convenient to use.
[0005] The specific technical solutions are as follows:
[0006] An angle adjustment structure of a smoke exhaust window has the following characteristics, including:
[0007] The window frame comprises an outer frame and an inner frame both of which are arranged in a rectangular frame, the outer frame is installed on the wall of the building, the inner frame is arranged in the frame of the outer frame, and the top of the inner frame is hinged to the top crossbeam of the outer frame, and guide rails are arranged in the frame of the inner frame and on the bottom crossbeam and the top crossbeam and are arranged parallel to each other;
[0008] A window body, wherein the top and bottom of the window body are provided with slide grooves, and the window body is installed in the frame body of the inner frame, and the top and bottom slide grooves are respectively slidably arranged on the guide rails on the top crossbeam and the bottom crossbeam of the inner frame;
[0009] The first automatic window opening structure is arranged between the inner frame and the window body, and includes a winding rope, a clamping plate and a first rotary driver. Both ends of the guide rail corresponding to the top crossbeam are provided with guide wheels. The winding rope is wound around the two guide wheels. One end of the clamping plate is clamped on a strand of the winding rope, and the other end of the clamping plate is connected to the window body. The first rotary driver is installed on the inner frame and is connected to a guide wheel power.
[0010] The second automatic window opening structure is arranged between the inner frame and the outer frame, and includes an arc rack, an opening and closing gear, and a second rotary driver. One end of the arc rack is mounted on the inner frame, and its center is concentric with the axis of the hinge shaft of the inner frame on the outer frame. At the same time, the second rotary driver is arranged on the outer frame and an opening and closing gear is installed on its output shaft, and the opening and closing gear is meshed with the arc rack.
[0011] An anti-over-opening component is arranged between the outer frame and the inner frame and limits the angle at which the inner frame can flip over on the outer frame;
[0012] The anti-theft net is arranged on the inner frame and covers the window formed when the window body is opened.
[0013] The above-mentioned angle adjustment structure of a smoke exhaust window, wherein the anti-over-opening component includes a limiting strip and a limiting column, the limiting column is installed on the inner frame, one end of the limiting strip is hinged on the outer frame, a strip-shaped limiting hole is opened on the limiting strip, and one end of the limiting column extends into the strip-shaped limiting hole.
[0014] In the above-mentioned angle adjustment structure of a smoke exhaust window, the limiting strip is a flat strip, and the limiting strip is arranged in the gap between the inner frame and the outer frame.
[0015] In the above-mentioned angle adjustment structure of a smoke exhaust window, a limiting head is provided at the end of one end of the limiting column passing through the strip-shaped limiting hole, and the outer edge of the limiting head protrudes from the outer wall of the limiting column.
[0016] The above-mentioned angle adjustment structure of a smoke exhaust window, wherein a hidden groove is opened on the side of the limit strip away from the inner frame and located outside the hole opening of the strip-shaped limit hole, and the hidden groove is connected to the strip-shaped limit hole, and when the limit column extends into the strip-shaped limit hole, the limit head is located in the hidden groove.
[0017] In the above-mentioned angle adjustment structure of a smoke exhaust window, the length of the strip-shaped limiting hole on the limiting strip is less than 30 cm.
[0018] In the above-mentioned angle adjustment structure of a smoke exhaust window, the arc rack is installed on a side column of the inner frame, and the second rotary driver is arranged on a side column of the corresponding side of the outer frame.
[0019] In the above-mentioned angle adjustment structure of a smoke exhaust window, the guide wheels are all toothed wheels, and the winding rope is a toothed belt.
[0020] In the above-mentioned angle adjustment structure of a smoke exhaust window, the anti-theft net is arranged on one side of the inner side of the inner frame.
[0021] The positive effects of the above technical solution are:
[0022] The above-mentioned angle adjustment structure of the smoke exhaust window is provided by setting a window frame including an inner frame and an outer frame, and the upper end of the inner frame is hinged on the top crossbeam of the outer frame. At the same time, a guide rail is provided on the inner frame and a window body is slidably provided. Moreover, a first automatic window opening structure is provided between the inner frame and the window, and a second automatic window opening structure is provided between the outer frame and the inner frame. In addition, an anti-over-opening component is provided between the inner frame and the outer frame, and an anti-theft net is provided on the inner frame and at the window formed by opening the window. Under normal circumstances, lighting, ventilation and smoke exhaust can be achieved by opening the window. When the demand for ventilation and smoke exhaust is large, the inner frame can be flipped relative to the outer frame to achieve angle adjustment of the smoke exhaust window and enhance the lighting, ventilation and smoke exhaust capabilities. Moreover, the anti-theft property is improved by the anti-over-opening component and the anti-theft net. At the same time, remote control can be achieved through the first automatic window opening structure and the second automatic window opening structure, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural diagram of an embodiment of an angle adjustment structure of a smoke exhaust window of the utility model;
[0024] Figure 2 This is a schematic diagram of an inner frame after being flipped relative to the outer frame in a preferred embodiment of the utility model;
[0025] Figure 3 This is a structural schematic diagram of a first automatic window opening structure of a preferred embodiment of the utility model;
[0026] Figure 4 This is a structural schematic diagram of a second automatic window opening structure of a preferred embodiment of the utility model;
[0027] Figure 5 It is a structural schematic diagram of an anti-over-opening component of a preferred embodiment of the utility model.
[0028] In the attached drawings: 1. Window frame; 11. Outer frame; 12. Inner frame; 2. Guide rail; 3. Window body; 4. First automatic window opening structure; 41. Winding rope; 42. Clamp; 43. First rotary drive; 44. Guide wheel; 5. Second automatic window opening structure; 51. Arc rack; 52. Opening and closing gear; 53. Second rotary drive; 6. Anti-over-opening component; 61. Limiting strip; 62. Limiting column; 611. Bar-shaped limiting hole; 612. Hidden groove; 621. Limiting head; 7. Anti-theft net. DETAILED DESCRIPTION
[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 5 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.
[0030] Figure 1 This is a structural diagram of an embodiment of the angle adjustment structure of a smoke exhaust window of the utility model. Figure 1 As shown, the angle adjustment structure of the smoke exhaust window provided in this embodiment includes: a window frame 1, a window body 3, a first automatic window opening structure 4, a second automatic window opening structure 5, an anti-over-opening component 6 and an anti-theft net 7.
[0031] Figure 2 This is a schematic diagram of a preferred embodiment of the utility model after the inner frame is flipped relative to the outer frame. Figure 1 and Figure 2 As shown, the window frame 1 includes an outer frame 11 and an inner frame 12, both of which are arranged in a rectangular frame. During installation, the outer frame 11 is installed on the wall of the building, and the inner frame 12 is arranged in the frame of the outer frame 11. At this time, the top of the inner frame 12 is hinged to the top crossbeam of the outer frame 11, so that the inner frame 12 can be turned around its hinge point on the outer frame 11, and the arrangement angle of the inner frame 12 can be adjusted, which provides conditions for meeting different usage requirements in the future. In addition, guide rails 2 are arranged in the frame of the inner frame 12 and on the bottom crossbeam and the top crossbeam, and are arranged parallel to each other, which provides conditions for the subsequent installation of the window 3 on the inner frame 12 to form a sliding window structure.
[0032] Specifically, sliding grooves are provided on the top and bottom of the window 3. During installation, the window 3 is installed in the frame of the inner frame 12, and the sliding grooves on the top and bottom of the window 3 are respectively slid on the guide rails 2 on the top beam and the bottom beam of the inner frame 12, so that the top and bottom of the window 3 are supported and guided by the corresponding guide rails 2, thereby realizing stable movement of the window 3 on the inner frame 12 and meeting the needs of opening and closing the window under normal circumstances. That is, under normal lighting, ventilation and smoke exhaust requirements, the use requirements can be met by moving the window 3 on the inner frame 12.
[0033] Figure 3 This is a schematic diagram of the structure of the first automatic window opening structure of a preferred embodiment of the utility model. Figure 1 and Figure 3 As shown, the first automatic window opening structure 4 is arranged between the inner frame 12 and the window body 3. The first automatic window opening structure 4 realizes the automatic sliding of the window body 3 on the inner frame 12, which provides conditions for realizing remote opening and closing of the window. At this time, the first automatic window opening structure 4 also includes a winding rope 41, a clamping plate 42 and a first rotary driver 43. During installation, guide wheels 44 are arranged at both ends of the guide rail 2 corresponding to the top crossbeam. At this time, the winding rope 41 is arranged in a ring structure and wound around the two guide wheels 44. The winding rope 41 is installed on the inner frame 12 in a direction parallel to the guide rail 2 through the two guide wheels 44. At the same time, one end of the clamping plate 42 is clamped on a strand of the winding rope 41, which realizes the connection between the clamping plate 42 and the winding rope 41 and enables the clamping plate 42 to follow the winding rope 41 to move back and forth between the two guide wheels 44. , connect the other end of the splint 42 to the window 3, and install the first rotary driver 43 on the inner frame 12 and connect it to a guide wheel 44, that is, when the driving shaft of the first rotary driver 43 drives the corresponding guide wheel 44 to rotate, the guide wheel 44 can pull the winding rope 41 to move, so that the splint 42 can move between the two guide wheels 44, so that the splint 42 can drive the window 3 to slide back and forth on the guide rail 2 to realize the opening and closing control of the window. At this time, it is only necessary to control the forward and reverse rotation of the first rotary driver 43, which provides conditions for realizing the remote control of the opening and closing of the window.
[0034] Figure 4 This is a schematic diagram of the structure of the second automatic window opening structure of a preferred embodiment of the utility model. Figure 1 and Figure 4As shown, the second automatic window opening structure 5 is arranged between the inner frame 12 and the outer frame 11, that is, the deflection of the inner frame 12 relative to the outer frame 11 is realized by the second automatic window opening structure 5, so as to adjust the angle of the smoke exhaust window. At this time, the second automatic window opening structure 5 also includes an arc rack 51, an opening and closing gear 52 and a second rotary driver 53. During installation, one end of the arc rack 51 is installed on the inner frame 12, so as to realize the connection between the arc rack 51 and the inner frame 12, so that the inner frame 12 can be driven to move by the arc rack 51 later. Moreover, when the arc rack 51 is installed on the inner frame 12, the center of the arc rack 51 is concentric with the axis of the hinge shaft of the inner frame 12 on the outer frame 11, so that when the inner frame 12 deflects around its hinge shaft, the arc gear is still on the original circle at all places, which provides conditions for the subsequent use with the second rotary driver 53. In addition, the second rotary driver 53 is arranged on the outer frame 11, and the opening and closing gear 52 is installed on the output shaft of the second rotary driver 53, and the opening and closing gear 52 is meshed with the arc rack 51, so that when the second rotary driver 53 drives the opening and closing gear 52 to rotate, the opening and closing gear 52 can push the arc rack 51 to move back and forth, thereby realizing the eccentricity of the inner frame 12 on the outer frame 11, realizing the adjustment of the angle of the smoke exhaust window, and also providing conditions for realizing remote control adjustment.
[0035] More specifically, the anti-over-opening component 6 is arranged between the outer frame 11 and the inner frame 12. The anti-over-opening component limits the flipping angle of the inner frame 12 on the outer frame 11, thereby preventing the inner frame 12 from losing its anti-theft performance due to the window being too large when the deflection is too large. The anti-theft between the inner frame 12 and the outer frame 11 is achieved, and the structural design is more reasonable.
[0036] More specifically, the anti-theft net 7 is arranged on the inner frame 12, and the anti-theft net 7 can cover the window formed after the window 3 is opened, thereby realizing the anti-theft between the inner frame 12 and the window 3 and meeting the use demand of the anti-theft of the smoke exhaust window.
[0037] Figure 5 This is a schematic diagram of the structure of an anti-over-opening component of a preferred embodiment of the utility model. Figure 1 and Figure 5As shown, the anti-over-opening component 6 arranged between the inner frame 12 and the outer frame 11 includes a limiting strip 61 and a limiting column 62. At this time, the limiting column 62 is installed on the inner frame 12, and one end of the limiting strip 61 is hinged on the outer frame 11, so that the installation angle of the limiting strip 61 on the outer frame 11 is adjustable. At the same time, a strip limiting hole 611 is also provided on the limiting strip 61, and one end of the limiting column 62 is extended into the strip limiting hole 611, so that when the inner frame 12 deflects relative to the outer frame 11, as the angle of the inner frame 12 changes, the limiting column 62 can slide in the strip limiting hole 611. At this time, the limiting strip 61 can be deflected under the action of the limiting column 62, avoiding the problem of the limiting column 62 and the limiting strip 61 being stuck to each other. In addition, the movement stroke of the limiting column 62 is limited by the strip limiting hole 611, thereby avoiding the problem of excessive deflection when the inner frame 12 deflects relative to the outer frame 11, and the structural design is more reasonable.
[0038] More specifically, the limiting strip 61 of the anti-over-opening component 6 is set as a flat strip so that its thickness is relatively small. At this time, the limiting strip 61 is set in the gap between the inner frame 12 and the outer frame 11, which can meet the requirement of hiding the anti-over-opening component 6 after the inner frame 12 is closed, and the space utilization is more reasonable and the aesthetics is better.
[0039] More specifically, a limiting head 621 is further provided at the end of one end of the limiting column 62 passing through the strip limiting hole 611. Preferably, the limiting head 621 and the limiting column 62 are an integrated structure, and the outer edge of the limiting head 621 protrudes from the outer wall of the limiting column 62, that is, a protruding structure is formed at one end of the limiting column 62 by the limiting head 621. The mutual abutment between the limiting head 621 and the limiting strip 61 can effectively prevent the limiting column 62 from escaping from the strip limiting hole 611, thereby improving the connection reliability.
[0040] More specifically, a hidden groove 612 is further provided on the side of the limit strip away from the inner frame 12 and located on the outside of the opening of the strip limit hole 611, and the hidden groove 612 is connected to the strip limit hole 611, that is, the opening of the strip limit hole 611 away from the side where the limit column is extended is widened through the hidden groove 612, so that when the end of the limit column with the limit head 621 is subsequently extended into the strip limit hole 611, the limit head 621 can be accommodated by the limit groove, thereby hiding the limit head 621 and maintaining the flatness of the surface of the limit strip, thereby avoiding the problem of setting the gap between the inner frame 12 and the outer frame 11 too large due to the protruding end of the limit column.
[0041] More specifically, the length of the strip limiting hole 611 on the limiting strip 61 is set to be less than 30 cm, so that after the inner frame 12 swings, the width of the window formed by the separation between the inner frame 12 and the outer frame 11 is smaller, thereby forming an anti-theft structure to prevent thieves from entering the building from here, and providing higher security.
[0042] More specifically, the arc rack 51 is installed on a side column of the inner frame 12, and at the same time, the second rotation driver 53 is arranged on the side column on the corresponding side of the outer frame 11, that is, the second automatic window opening structure 5 is arranged on the side of the inner frame 12 and the outer frame 11. Preferably, the second automatic window opening structure 5 is arranged in the area near the inner frame 12 and the top of the outer frame 11, so as to reduce the diameter of the arc rack 51, realize the miniaturization of the arc rack 51, and improve the aesthetics.
[0043] More specifically, the guide wheels 44 of the first automatic window opening structure 4 are all selected as toothed wheels, and at the same time, the winding rope 41 is selected as a toothed belt that cooperates with the toothed wheel. This makes the power transmission more stable, prevents slipping during movement, and makes the structural design more reasonable.
[0044] More specifically, the anti-theft net 7 is arranged on the inner side of the inner frame 12, which can effectively prevent the problem of criminals removing the anti-theft net 7 from the outer side of the smoke exhaust window, further improve the security and make the structural design more reasonable.
[0045] The angle adjustment structure of the smoke exhaust window provided in this embodiment includes a window frame 1, a window body 3, a first automatic window opening structure 4, a second automatic window opening structure 5, an anti-over-opening component 6 and an anti-theft net 7; the top of the inner frame 12 of the frame body is hinged to the top crossbeam of the outer frame 11, and the window body 3 is slidably arranged on the inner frame 12, and at the same time, the first automatic window opening structure 4 is arranged between the window 3 and the inner frame 12, and the second automatic window opening structure 5 and the anti-over-opening component 6 are arranged between the inner frame 12 and the outer frame 11. An anti-theft net 7 is provided on the inner frame 12 to cover the window formed after the window 3 is opened. Under normal circumstances, the lighting, ventilation and smoke exhaust requirements can be met by opening the window 3, and the inner frame 12 can be opened relative to the outer frame 11 by adjusting the angle of the inner frame 12 on the outer frame 11, thereby enhancing the lighting, ventilation and smoke exhaust capabilities. At the same time, its anti-theft performance is also guaranteed by the anti-over-opening component 6 and the anti-theft net 7. In addition, remote control can be achieved through the first automatic window opening structure 4 and the second automatic window opening structure 5, making it more convenient to open and close the windows.
[0046] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.
Claims
1. An angle adjustment structure for a smoke exhaust window, characterized in that: include: A window frame, the window frame comprising an outer frame and an inner frame both arranged in a rectangular frame, the outer frame being mounted on a wall of a building, the inner frame being arranged in a frame body of the outer frame, and the top of the inner frame being hinged to a top crossbeam of the outer frame, and guide rails being arranged in parallel with each other in the frame body of the inner frame and on the bottom crossbeam and the top crossbeam; A window, wherein the top and bottom of the window are both provided with slide grooves, and the window is installed in the frame of the inner frame, and the slide grooves at the top and bottom are respectively slidably arranged on the guide rails on the top crossbeam and the bottom crossbeam of the inner frame; A first automatic window opening structure, which is arranged between the inner frame and the window body, and comprises a winding rope, a clamping plate and a first rotary driver, guide wheels are arranged at both ends of the guide rail corresponding to the top crossbeam, the winding rope is wound around the two guide wheels, one end of the clamping plate is clamped on one strand of the winding rope, and the other end of the clamping plate is connected to the window body, and the first rotary driver is installed on the inner frame and is dynamically connected to one of the guide wheels; A second automatic window opening structure, which is arranged between the inner frame and the outer frame, and comprises an arc rack, an opening and closing gear, and a second rotary driver, wherein one end of the arc rack is mounted on the inner frame and the center of the circle is concentric with the center of the hinge shaft of the inner frame on the outer frame, and the second rotary driver is arranged on the outer frame and the opening and closing gear is mounted on the output shaft thereof, and the opening and closing gear is meshed with the arc rack; an anti-over-opening component, the anti-over-opening component is arranged between the outer frame and the inner frame and limits the angle at which the inner frame turns over on the outer frame; The anti-theft net is arranged on the inner frame and covers the window formed when the window body is opened.
2. The angle adjustment structure of the smoke exhaust window according to claim 1, characterized in that: The anti-over-opening component includes a limiting strip and a limiting column, wherein the limiting column is installed on the inner frame, one end of the limiting strip is hinged to the outer frame, a strip-shaped limiting hole is provided on the limiting strip, and one end of the limiting column extends into the strip-shaped limiting hole.
3. The angle adjustment structure of the smoke exhaust window according to claim 2, characterized in that: The limiting strip is a flat strip, and the limiting strip is arranged in the gap between the inner frame and the outer frame.
4. The angle adjustment structure of the smoke exhaust window according to claim 2, characterized in that: A limiting head is arranged at the end of one end of the limiting column passing through the strip-shaped limiting hole, and the outer edge of the limiting head protrudes from the outer wall of the limiting column.
5. The angle adjustment structure of the smoke exhaust window according to claim 4, characterized in that: A hidden groove is provided on the side of the limiting strip away from the inner frame and located outside the opening of the strip-shaped limiting hole, and the hidden groove is connected to the strip-shaped limiting hole, and when the limiting column extends into the strip-shaped limiting hole, the limiting head is located in the hidden groove.
6. The angle adjustment structure of the smoke exhaust window according to claim 2, characterized in that: The length of the strip-shaped limiting hole on the limiting strip is less than 30 cm.
7. The angle adjustment structure of the smoke exhaust window according to claim 1, characterized in that: The arc rack is installed on a side column of the inner frame, and the second rotary driver is arranged on a side column on a corresponding side of the outer frame.
8. The angle adjustment structure of the smoke exhaust window according to claim 1, characterized in that: The guide wheels are all toothed wheels, and the winding rope is a toothed belt.
9. The angle adjustment structure of the smoke exhaust window according to claim 1, characterized in that: The anti-theft net is arranged on one side of the inner side of the inner frame.