Light steel roof light ventilation structure

Abstract

This invention discloses a light steel roof lighting and ventilation structure, relating to the field of building ventilation structure technology. It includes a window frame, on which a window sash mechanism and a driving mechanism are movably mounted. The driving mechanism provides driving force for the opening and closing movement of the window sash mechanism within the window frame. The window sash mechanism includes a first window sash unit and a second window sash unit. During the opening and closing movement of the window sash mechanism, the first and second window sash units can undergo parallel contact movement, thereby removing adhering substances attached to the surfaces of the first and second window sash units. By providing a window sash mechanism with first and second window sash units, this invention ensures that the relative movement of the first and second window sash units during the opening or closing process allows for the removal of adhering substances, thus maintaining the cleanliness of the window sash mechanism, facilitating cleaning, and maintaining good light transmission.

Description

Technical Field

[0001] This invention relates to the field of building ventilation structure technology, specifically a light steel roof lighting and ventilation structure. Background Technology

[0002] Light steel roofs refer to roofs that use steel structure trusses and have a steel content of less than 30kg per unit area. They are commonly used in low-rise buildings such as factories. In order to maintain a good ventilation environment, relevant roof lighting and ventilation structures are usually installed on light steel roofs.

[0003] Existing patents include Chinese patent publication number CN201320178281.0, titled "Roof Lighting and Ventilation Device." This patent includes roof purlins and ventilator columns. The bottom end of the ventilator column is connected to the roof purlin, and the other end is connected to a horizontal plate. Lighting panels are provided on both sides of the horizontal plate. The roof purlin is also provided with a protective plate, a drainage channel, and a rainproof plate. The protective plate is set inside the roof purlin, the rainproof plate is set on the upper surface of the roof purlin, and the drainage channel is set on the upper surface of the rainproof plate. The upper surface of the drainage channel is also provided with a rainwater channel.

[0004] There are various types of existing roof lighting and ventilation structures, among which the triangular structure with opening and closing function is the most common. It can directly connect the interior and exterior of the building, and has good ventilation and lighting effects. However, the disadvantage of this lighting and ventilation structure is that after a period of use, the light-transmitting panels used for rain and snow protection will accumulate a lot of dust and even bird droppings and other debris on their surface, thereby reducing the light transmission effect. Moreover, light steel roofs are high and have limited load-bearing capacity, and the existing technology of manually cleaning the light-transmitting panels of the roof lighting and ventilation structure is inconvenient. Summary of the Invention

[0005] Therefore, in order to overcome the above-mentioned shortcomings, the purpose of this invention is to provide a light steel roof lighting and ventilation structure to address the deficiencies in the prior art.

[0006] The present invention is implemented as follows: a light steel roof lighting and ventilation structure is constructed, including a window frame, on which a window sash mechanism and a driving mechanism are movably installed. The driving mechanism provides driving force for the opening and closing movement of the window sash mechanism in the window frame. The window sash mechanism includes a first window sash unit and a second window sash unit. The first window sash unit and the second window sash unit can undergo parallel contact movement during the opening and closing movement of the window sash mechanism, thereby removing the adhering substances on the surface of the first window sash unit and the second window sash unit.

[0007] The first window sash unit includes a first light-transmitting plate, and a protective frame is fixedly installed on the circumferential edge of the first light-transmitting plate. The second window sash unit includes a plate-shaped box, the plate-shaped box is made of light-transmitting material, and one end of the plate-shaped box is provided with an insertion port that is adapted to be inserted into the first light-transmitting plate.

[0008] An elastic cleaning ring is fixed to the inner wall of the socket, which can contact the first light-transmitting plate.

[0009] Cleaning strips are provided on both sides of the panel of the box. The cleaning strips are fixed to the first light-transmitting plate through connecting pipes. The cleaning strips can move synchronously with the first light-transmitting plate under the action of the connecting pipes. The cleaning strips include a horizontal tube that is fixed to one end of the connecting pipe. The horizontal tube has multiple vent holes facing the panel of the box. Multiple cleaning cotton strips are fixed on the edge of the vent holes. The cleaning cotton strips have a tubular structure. The first light-transmitting plate is inserted into the panel of the box and a venting tube is fixed through it. The cleaning cotton strips can contact the outer panel of the box. Both ends of the venting tube extend out of the protective frame. One end of the venting tube is located in the cavity of the box. The other end of the venting tube is connected to the connecting pipe. The connecting pipe is a right-angle bend. The main body of the venting tube is parallel to the length direction of the connecting pipe. The bottom wall of the box is connected to the first light-transmitting plate by a tension spring.

[0010] Preferably, the window frame includes a base frame, the top of the base frame is provided with a crossbar, and both ends of the crossbar are equipped with triangular support plates fixed to the base frame. The two sides of the crossbar and the base frame form two window frame openings.

[0011] Preferably, the first window sash unit and the second window sash unit are connected by a sliding component, so that the first window sash unit and the second window sash unit can move relative to each other in a parallel straight line.

[0012] Preferably, the drive mechanism includes a winding unit fixed to the crossbar. The winding unit is connected to the window sash mechanism via a rope assembly, and the rotation direction of the winding unit controls the opening and closing motion of the window sash mechanism within the window frame.

[0013] Preferably, the winding unit includes a servo motor fixed to the crossbar, the output shaft of the servo motor is drivenly connected to a shaft, both ends of the shaft are rotatably mounted to a triangular support plate, and a first winding roller and a second winding roller are fixed on the shaft, the diameter of the first winding roller being smaller than the diameter of the second winding roller.

[0014] Preferably, the rope assembly includes a first pull rope with one end connected to the first window sash unit and the other end connected to the first take-up roller. The rope assembly also includes a second pull rope with one end connected to the second window sash unit and the other end connected to the second take-up roller.

[0015] Preferably, the first window sash unit is hinged to the window frame via a hinge unit, enabling the first window sash unit to reciprocate and swing within the base frame.

[0016] Preferably, the hinge unit includes mounting holes formed on two triangular support plates, and a cylindrical block fixed to the guard frame is movably inserted into the mounting holes.

[0017] Preferably, a sealing strip is fixed to the side of the protective frame near the base frame.

[0018] The present invention has the following advantages: In the above technical solution, the light steel roof lighting and ventilation structure provided by the present invention, through the window sash mechanism with a first window sash unit and a second window sash unit, allows the relative movement of the first window sash unit and the second window sash unit during the opening or closing of the window sash mechanism to remove the attached substances, thereby maintaining the cleanliness of the window sash mechanism, facilitating cleaning, and maintaining the good light transmission effect of the window sash mechanism. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of a light steel roof lighting and ventilation structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of a window frame for a light steel roof lighting and ventilation structure according to the present invention;

[0021] Figure 3 This is a schematic diagram of the drive mechanism of a light steel roof lighting and ventilation structure of the present invention within a window frame;

[0022] Figure 4 This is a schematic diagram of a light steel roof lighting and ventilation structure according to the present invention, showing a duct penetrating through the first light-transmitting panel;

[0023] Figure 5 This is a schematic cross-sectional view of the plate-shaped box of the window sash mechanism of a light steel roof lighting and ventilation structure according to the present invention.

[0024] Figure 6 This is a schematic diagram of a sealing strip for a light steel roof lighting and ventilation structure according to the present invention;

[0025] Figure 7 This is a schematic diagram showing the connection between the cleaning strip and the connecting pipe in a light steel roof lighting and ventilation structure according to the present invention;

[0026] Figure 8 This is a schematic diagram of the horizontal pipe of a light steel roof lighting and ventilation structure of the present invention on the plate surface of a plate box.

[0027] The components include: 1. Window frame; 1.1. Base frame; 1.2. Horizontal bar; 1.3. Triangular support plate; 1.4. Window frame opening; 2. Window sash mechanism; 2.1. First window sash unit; 2.11. First light-transmitting plate; 2.12. Protective frame; 2.13. Sealing strip; 2.2. Second window sash unit; 2.21. Panel box; 2.22. Insert; 2.23. Elastic cleaning ring; 2.24. Groove; 3. Drive mechanism; 5. Rewinding unit; 5 5.1 Servo motor; 5.2 Shaft; 5.3 First take-up roller; 5.4 Second take-up roller; 6. Rope assembly; 6.1 First pull rope; 6.2 Second pull rope; 7. Hinge unit; 7.1 Mounting hole; 7.2 Cylindrical block; 8. Fixed-rotation roller; 9. Annular groove; 10. Cleaning strip; 10.1 Horizontal tube; 10.2 Vent hole; 10.3 Cleaning swab; 11. Connecting tube; 12. Air guide tube; 13. Tension spring. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1-8 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] This invention provides an improved light steel roofing lighting and ventilation structure, please refer to [link / reference]. Figure 1-8 The window frame includes a window frame 1, on which a window sash mechanism 2 and a drive mechanism 3 are movably mounted. The drive mechanism 3 provides driving force for the opening and closing movement of the window sash mechanism 2 in the window frame 1. The window sash mechanism 2 includes a first window sash unit 2.1 and a second window sash unit 2.2. The first window sash unit 2.1 and the second window sash unit 2.2 can undergo parallel contact movement during the opening and closing movement of the window sash mechanism 2, thereby removing the adhering substances on the surface of the first window sash unit 2.1 and the second window sash unit 2.2.

[0030] Specifically, the window frame 1 has a rectangular window opening, and the angle between the rectangular window and the horizontal plane is between 30 degrees and 60 degrees. Preferably, the angle between the rectangular window and the horizontal plane is 45 degrees. The window sash mechanism 2 is a plate structure that can completely cover the opening of the window frame 1. The first window sash unit 2.1 is a first plate installed on the window frame 1, and the second window sash unit 2.2 is a second plate that is slidably attached to the first plate. The first plate and the second plate are parallel and attached. Both the first plate and the second plate are transparent acrylic plates. The drive mechanism 3 can be a straight rod motor fixed on the window frame 1, and the output shaft of the straight rod motor is fixed to the second plate.

[0031] When the first and second plates are staggered and flush, the overlap between them is minimal, representing the maximum unfolded state of the window sash mechanism 2. This completely covers the opening of the window frame 1, and the window frame 1 is in a closed state. When the first and second plates overlap, the window sash mechanism 2 is in a slightly retracted state, with the maximum overlap. In this case, the window frame 1 is in an open state. During actual use, when the output shaft of the straight rod motor is in a retracted state, the window frame 1 is in a closed state; when it is in an extended state, the window frame 1 is in an open state. The opening and closing states of the window frame 1 are controlled by adjusting the extension and retraction of the motor's output shaft. During the opening and closing of the window frame 1, the first and second plates move in relative contact, allowing dust to be removed from the window sash mechanism 2, ensuring its cleanliness and maintaining good light transmission.

[0032] In another embodiment of the present invention, the window frame 1 includes a base frame 1.1. The frame opening of the base frame 1.1 is parallel to the horizontal plane. The base frame 1.1 is connected to the roof. A horizontal bar 1.2 is provided at the top of the base frame 1.1. The length direction of the horizontal bar 1.2 is parallel to the frame opening of the base frame 1.1. The top view projection of the horizontal bar 1.2 is located in the middle of the base frame 1.1. The cross-section of the horizontal bar 1.2 is rectangular. Both ends of the horizontal bar 1.2 are flush with the ends of the corresponding base frames 1.1. Triangular support plates 1.3, which are fixed to the base frames 1.1, are installed at both ends of the horizontal bar 1.2. The triangular support plates 1.3 are isosceles triangles. The bottom edge of the triangular support plates 1.3 is fixed to the base frame 1.1, and the top edge of the triangular support plates 1.3 is fixed to the horizontal bar 1.2. The two sides of the horizontal bar 1.2 and the base frame 1.1 form two window frame openings 1.4. Specifically, the four sides of the window frame opening 1.4 are formed by the hypotenuse of each of the two parallel triangular support plates 1.3. The frame transition line of the base frame 1.1, which is parallel to the horizontal bar 1.2, and the edge line of the horizontal bar 1.2 form the end lines of the other two ends of the window frame opening 1.4, thus forming a window frame opening 1.4 with the same inclination angle as the hypotenuse of the triangular support plate 1.3. There are two symmetrically distributed window frame openings 1.4 on the window frame 1, and the two symmetrically distributed window frame openings 1.4 constitute the frame opening of the window frame 1.

[0033] In another embodiment of the present invention, the first window sash unit 2.1 and the second window sash unit 2.2 are connected by a sliding assembly, so that the first window sash unit 2.1 and the second window sash unit 2.2 can move relative to each other in a parallel straight line. The first window sash unit 2.1 includes a first light-transmitting plate 2.11, and a protective frame 2.12 is fixedly installed on the circumferential edge of the first light-transmitting plate 2.11. The second window sash unit 2.2 includes a plate-shaped box 2.21, which is made of light-transmitting material. One end of the plate-shaped box 2.21 is provided with a socket 2.22 that is adapted to be inserted into the first light-transmitting plate 2.11. The sliding assembly includes a plurality of support wheels located inside the plate-shaped box 2.21 and fixed to the first light-transmitting plate 2.11. The protective frame 2.12 can be adapted to be inserted into the interior of the plate-shaped box 2.21 through the socket 2.22.

[0034] In actual use, when the opening of the window frame 1 is in the open state, the first window sash unit 2.1 is retracted into the panel box 2.21, and the overlap between the first window sash unit 2.1 and the panel box 2.21 is at its highest. When the opening of the window frame 1 is in the closed state, the first window sash unit 2.1 extends out of the panel box 2.21, and the overlap between the first window sash unit 2.1 and the panel box 2.21 is at its lowest.

[0035] In another embodiment of the present invention, the driving mechanism 3 includes a winding unit 5 fixed to the crossbar 1.2. The winding unit 5 is connected to the window sash mechanism 2 through the rope assembly 6. The rotation direction of the winding unit 5 controls the opening and closing motion state of the window sash mechanism 2 in the window frame 1. During use, when the driving mechanism 3 drives forward, the frame opening of the window frame 1 changes from the open state to the closed state. When the driving mechanism 3 drives in reverse, the frame opening of the window frame 1 changes from the closed state to the open state.

[0036] In another embodiment of the present invention, the winding unit 5 includes a servo motor 5.1 fixed to the crossbar 1.2. The axial direction of the output shaft of the servo motor 5.1 is parallel to the length direction of the crossbar 1.2, and the center of the axis of the shaft 5.2 is parallel to the length direction of the crossbar 1.2. The output shaft of the servo motor 5.1 is drivenly connected to the shaft 5.2. Preferably, the end of the shaft 5.2 is coaxially fixed to the end of the output shaft of the servo motor 5.1. Both ends of the shaft 5.2 are rotatably mounted to the triangular support plate 1.3. A first winding roller 5.3 and a second winding roller 5.4 are fixed on the shaft 5.2. The diameter of the first winding roller 5.3 is smaller than the diameter of the second winding roller 5.4. The center lines of the first winding roller 5.3 and the second winding roller 5.4 overlap with the center line of the axis of the shaft 5.2. When the servo motor 5.1 rotates in the forward direction, the drive mechanism 3 is driven in the forward direction. When the servo motor 5.1 rotates in the reverse direction, the drive mechanism 3 is driven in the reverse direction.

[0037] In another embodiment of the present invention, the rope assembly 6 includes a first pull rope 6.1 with one end connected to the first window sash unit 2.1 and the other end connected to the first take-up roller 5.3. The rope assembly 6 also includes a second pull rope 6.2 with one end connected to the second window sash unit 2.2 and the other end connected to the second take-up roller 5.4. The first window sash unit 2.1 is hinged to the window frame 1 via a hinge unit 7, allowing the first window sash unit 2.1 to reciprocate and swing within the base frame 1. A sealing strip 2.13 is fixed to the side of the protective frame 2.12 near the base frame 1.1. The sealing strip 2.13 can contact the base frame 1.1. The sealing strip 2.13 is a rigid strip. A sealing strip is fixed to the side of the base frame 1.1 that is in contact with the base frame 1.1, thereby increasing the sealing effect when the frame is in contact. Specifically, the swing position has two positions: one is the contact position where the angle between the first window sash unit 2.1 and the window frame opening 1.4 is 0 degrees, and the other is the separation position where the angle between the first window sash unit 2.1 and the window frame opening 1.4 is acute. Preferably, when the first window sash unit 2.1 is in the separation position, the angle between the first window sash unit 2.1 and the horizontal plane is 90 degrees. The hinge unit 7 includes mounting holes 7.1 opened on the two triangular support plates 1.3. A cylindrical block 7.2 fixed to the guard frame 2.12 is movably inserted into the mounting hole 7.1. The axis of the cylindrical block 7.2 is parallel to the length direction line of the crossbar 1.2.

[0038] In actual use, the rope assembly 6 operates as follows: When the servo motor 5.1 rotates in the forward direction, both the first winding roller 5.3 and the second winding roller 5.4 rotate in the forward direction along with the shaft 5.2. At this time, the first pull rope 6.1 connected to the first winding roller 5.3 is in a released state, and the second pull rope 6.2 on the second winding roller 5.4 is in a winding state. Under the pull of the second pull rope 6.2, the plate box 2.21 in the window sash mechanism 2 has a deflection force toward the crossbar 1.2, causing the window sash mechanism 2 to tilt. At this time, the first pull rope 6.1, in the released state, can also be affected by the tilting of the first window sash unit 2.1 of the window sash mechanism 2. Meanwhile, the servo motor 5.1 rotates forward as the pulling force moves away from the base frame 1.1 until the first window sash unit 2.1 reaches the fitting position. At this time, the servo motor 5.1 also stops rotating forward, and the first window sash unit 2.1 is completed from the detached position to the fitting position. During this process, since the first pull rope 6.1 always holds a pulling force on the window sash mechanism 2, it helps to avoid a large impact force when the window sash mechanism 2 changes to the closed state of the window frame 1, and protects the window sash mechanism 2 on the window frame 1. At the same time, under the pull of the first pull rope 6.1, the overlap between the first window sash unit 2.1 and the panel box 2.21 is at its minimum.

[0039] When the servo motor 5.1 rotates in the reverse direction, both the first take-up roller 5.3 and the second take-up roller 5.4 rotate in the reverse direction along with the shaft 5.2. At this time, the first pull rope 6.1 connected to the first take-up roller 5.3 is in the take-up state, and the second pull rope 6.2 on the second take-up roller 5.4 is in the release state. This causes the first window sash unit 2.1 to change from a close-fitting position to a detached position. During this process, the first pull rope 6.1 always exerts a pulling force on the first window sash unit 2.1, causing the first window sash unit 2.1 to separate from the triangular support plate 1.3. The release speed of the second pull rope 6.2 is greater than that of the first pull rope 6.1, causing the panel box 2.21 to slide along the first window sash unit 2.1 under the action of gravity without being restrained by the pull of the second pull rope 6.2. This results in the first window sash unit 2.1 and the panel box 2.21 having the maximum overlap. When the sealing strip 2.13 can contact the base frame 1.1, it limits the first window sash unit 2.1 in the detached position, so that when the first window sash unit 2.1 changes from the attached position to the detached position, it can stop in time when the angle between the first window sash unit 2.1 and the horizontal plane is 90 degrees.

[0040] During the reciprocating swaying motion, the second window sash unit 2.2 and the first window sash unit 2.1 perform synchronous swaying motions. The inner bottom wall of the panel box 2.21 is connected to the insertion end of the first light-transmitting plate 2.11 by an anti-detachment rope, thereby preventing the first light-transmitting plate 2.11 from completely separating from the panel box 2.21. It should be further explained that in the detached position, the overlap between the first window sash unit 2.1 and the panel box 2.21 is at its maximum, that is, the unfolded surface of the window sash mechanism 2 is at its minimum. At this time, the frame opening of the window frame 1 is in its maximum open position, and the unfolded surface of the window sash mechanism 2 is at its minimum, reducing the obstruction of airflow through the frame opening of the window frame 1. In the fitted position, the overlap between the first window sash unit 2.1 and the panel box 2.21 is at its minimum, that is, the unfolded surface of the window sash mechanism 2 is at its maximum, and the window sash mechanism 2 completely covers the frame opening of the window frame 1.

[0041] In another embodiment of the present invention, a fixed roller 8 is rotatably mounted in the middle of the frame of the base frame 1.1. The fixed roller 8 can rotate axially on the base frame 1.1. The roller body of the fixed roller 8 is provided with an annular groove 9 in the circumferential direction, which can engage with the first pull rope 6.1. Thus, the fixed roller 8 acts as a fixed pulley on the base frame 1.1, changing the direction of the force of the first pull rope 6.1, which facilitates the application of pulling force to the first window sash unit 2.1 by the first pull rope 6.1.

[0042] In another embodiment of the present invention, an elastic cleaning ring 2.23 that can contact the first light-transmitting plate 2.11 is fixed on the inner wall surface of the socket 2.22. The elastic cleaning ring 2.23 can be made of elastic sponge material. The elastic cleaning ring 2.23 fills the gap between the first light-transmitting plate 2.11 and the inner wall surface of the socket 2.22. The elastic cleaning ring 2.23 can remove dust from the first light-transmitting plate 2.11 when the first window sash unit 2.1 and the second window sash unit 2.2 move relative to each other.

[0043] In another embodiment of the present invention, a plurality of slots 2.24 are provided on the side of the flexible cleaning ring 2.23 that contacts the first light-transmitting plate 2.11. When the first window sash unit 2.1 and the second window sash unit 2.2 move relative to each other, specifically when the first window sash unit 2.1 is inserted into the plate box 2.21, the air inside the plate box 2.21 is compressed and discharged from the slots 2.24, which helps to remove dust near the insertion port 2.22.

[0044] In another embodiment of the present invention, cleaning strips 10 are provided on the two sides of the plate surface of the plate box 2.21. The cleaning strips 10 are fixed to the first light-transmitting plate 2.11 through the connecting pipe 11. The cleaning strips 10 can move synchronously with the first light-transmitting plate 2.11 under the action of the connecting pipe 11. The cleaning strips 10 include a horizontal pipe 10.1 that is fixedly connected to one end of the connecting pipe 11. The horizontal pipe 10.1 has a plurality of ventilation holes 10.2 facing the plate surface of the plate box 2.21. A plurality of cleaning cotton strips 10 are fixed on the edge of the ventilation holes 10.2. 3. Preferably, the cleaning tampon 10.3 has a tubular structure. The first light-transmitting plate 2.11 is inserted into one end of the plate-shaped box 2.21 and a duct 12 is fixedly inserted through it. The cleaning tampon 10.3 can contact the outer side of the plate-shaped box 2.21. Both ends of the duct 12 extend out of the protective frame 2.12. One end of the duct 12 is located in the cavity of the plate-shaped box 2.21. The other end of the duct 12 is connected to the connecting pipe 11. The connecting pipe 11 is a right-angle bend. The main body of the duct 12 is parallel to the length direction of the connecting pipe 11.

[0045] In actual use, when the first window sash unit 2.1 is inserted into the panel box 2.21, the air inside the panel box 2.21 is compressed, and airflow enters through the air duct 12, then blows through the vent 10.2 towards the outer surface of the panel box 2.21, blowing away dust and other adhering substances. Simultaneously, the cleaning cotton strip 10.3 is agitated by the airflow, further enhancing the cleaning of the outer surface of the panel box 2.21. Regarding the cleaning effect on dust and other adhering substances, it should be noted that the inner bottom wall of the panel box 2.21 is connected to the first light-transmitting plate 2.11 by a tension spring 13. When the overlap between the first window sash unit 2.1 and the panel box 2.21 is minimal, the tension spring 13 is in its maximum tension state. Through the elastic restoring force deformation of the tension spring 13, the speed at which the first window sash unit 2.1 is inserted into the panel box 2.21 is accelerated, thereby increasing the speed at which the airflow is ejected from the vent 10.2.

[0046] When the first window sash unit 2.1 is pulled out from inside the panel box 2.21, a negative pressure is formed inside the panel box 2.21. This causes air from the vent 10.2 to enter the air guide pipe 12 through the connecting pipe 11, and then enter the panel box 2.21 through the air guide pipe 12. During this process, the tubular cleaning swab 10.3 is folded and collapsed at the vent 10.2 by the airflow entering the vent 10.2, so that the external airflow must pass through the cleaning swab 10.3 to enter the horizontal pipe 10.1. At this time, the cleaning swab 10.3 at the vent 10.2... At position 0.2, the air vent 10.1 filters dust from the airflow entering the horizontal tube 10.1, preventing dust and other debris from entering and maintaining a smooth airflow channel formed by the air duct 12 and the connecting tube 11. When the first window sash unit 2.1 is inserted into the panel box 2.21, the airflow is ejected from the air vent 10.2, causing the cleaning cotton strip 10.3 to re-establish itself. Since the airflow direction is opposite, it also helps to remove the previously filtered dust from the cleaning cotton strip 10.3, ensuring that the cleaning cotton strip 10.3 has a good dust filtering effect when filtering dust again.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light steel roof lighting and ventilation structure, comprising a window frame (1), wherein a window sash mechanism (2) and a drive mechanism (3) are movably mounted on the window frame (1), the drive mechanism (3) providing driving force for the opening and closing movement of the window sash mechanism (2) on the window frame (1), characterized in that: The window sash mechanism (2) includes a first window sash unit (2.1) and a second window sash unit (2.2). The first window sash unit (2.1) and the second window sash unit (2.2) can move in parallel contact during the opening and closing motion of the window sash mechanism (2), thereby removing the adhering substances on the surface of the first window sash unit (2.1) and the second window sash unit (2.2). The first window sash unit (2.1) includes a first light-transmitting plate (2.11), and a protective frame (2.12) is fixedly installed on the circumferential edge of the first light-transmitting plate (2.11). The second window sash unit (2.2) includes a plate-shaped box (2.21), which is made of light-transmitting material, and one end of the plate-shaped box (2.21) is provided with a socket (2.22) that is adapted to be inserted into the first light-transmitting plate (2.11). An elastic cleaning ring (2.23) that can contact the first light-transmitting plate (2.11) is fixed on the inner wall of the socket (2.22). Cleaning strips (10) are provided on the two sides of the plate of the plate box (2.21). The cleaning strips (10) are fixed to the first light-transmitting plate (2.11) through the connecting pipe (11). The cleaning strips (10) can move synchronously with the first light-transmitting plate (2.11) under the action of the connecting pipe (11). The cleaning strips (10) include a horizontal pipe (10.1) that is fixed to one end of the connecting pipe (11). The horizontal pipe (10.1) has a number of ventilation holes (10.2) facing the plate of the plate box (2.21). A number of cleaning cotton strips (10.3) are fixed on the edge of the ventilation holes (10.2). The cleaning cotton strips (10.3) are tubular structures. The plate (2.11) is inserted into the plate-shaped box (2.21) and a duct (12) is fixedly inserted through one end. The cleaning cotton strip (10.3) can contact the outer side of the plate-shaped box (2.21). Both ends of the duct (12) extend out of the protective frame (2.12). One end of the duct (12) is located in the cavity of the plate-shaped box (2.21). The other end of the duct (12) is connected to the connecting pipe (11). The connecting pipe (11) is a right-angle bend. The main body of the duct (12) is parallel to the length direction of the connecting pipe (11). The inner bottom wall of the plate-shaped box (2.21) is connected to the first light-transmitting plate (2.11) by a tension spring (13).

2. The light steel roofing lighting and ventilation structure according to claim 1, characterized in that, The window frame (1) includes a base frame (1.1), and a crossbar (1.2) is provided at the top of the base frame (1.1). Both ends of the crossbar (1.2) are equipped with triangular support plates (1.3) that are fixed to the base frame (1.1). The crossbar (1.2) and the base frame (1.1) together form two window frame openings (1.4).

3. The light steel roofing lighting and ventilation structure according to claim 2, characterized in that, The first window sash unit (2.1) and the second window sash unit (2.2) are connected by a sliding component, so that the first window sash unit (2.1) and the second window sash unit (2.2) can move relative to each other in a parallel straight line.

4. The light steel roofing lighting and ventilation structure according to claim 1, characterized in that, The drive mechanism (3) includes a winding unit (5) fixed to the crossbar (1.2). The winding unit (5) is connected to the window sash mechanism (2) via a rope assembly (6). The rotation direction of the winding unit (5) controls the opening and closing motion of the window sash mechanism (2) in the window frame (1).

5. A light steel roofing lighting and ventilation structure according to claim 4, characterized in that, The winding unit (5) includes a servo motor (5.1) fixed to the crossbar (1.2). The output shaft of the servo motor (5.1) is connected to a shaft (5.2). Both ends of the shaft (5.2) are rotatably mounted to the triangular support plate (1.3). A first winding roller (5.3) and a second winding roller (5.4) are fixed on the shaft (5.2). The diameter of the first winding roller (5.3) is smaller than the diameter of the second winding roller (5.4).

6. A light steel roofing lighting and ventilation structure according to claim 5, characterized in that, The rope assembly (6) includes a first pull rope (6.1) with one end connected to the first window sash unit (2.1) and the other end of the first pull rope (6.1) connected to the first take-up roller (5.3). The rope assembly (6) also includes a second pull rope (6.2) with one end connected to the second window sash unit (2.2) and the other end of the second pull rope (6.2) connected to the second take-up roller (5.4).

7. A light steel roofing lighting and ventilation structure according to claim 1, characterized in that, The first window sash unit (2.1) is hinged to the window frame (1) through the hinge unit (7), so that the first window sash unit (2.1) can reciprocate and swing on the base frame (1.1).

8. A light steel roofing lighting and ventilation structure according to claim 7, characterized in that, The hinge unit (7) includes mounting holes (7.1) on two triangular support plates (1.3), and a cylindrical block (7.2) fixed to the guard frame (2.12) is movably inserted into the mounting holes (7.1).

9. A light steel roofing lighting and ventilation structure according to claim 8, characterized in that, The protective frame (2.12) is fixed with a sealing strip (2.13) on the side close to the base frame (1.1).

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