Large-size outer window with electric opening and closing and wind pressure buffering function

Abstract

The present application relates to the technical field of window, and discloses a large-size outer window with electric opening and closing and wind pressure buffering function, which comprises an outer frame, a blocking groove, a glass door plate, a buffering rod, an isolation box, a speed reducer and a bevel gear set, the rotating shafts at the top of the two ends of the glass door plate are respectively rotationally connected to the inner walls of the two sides of the blocking groove, one of the rotating shafts extends into the isolation box and is connected with the bevel gear set, the rotating shaft is driven to rotate by the speed reducer through the bevel gear set, so that the glass door plate is opened or closed around the top axis, the buffering rod is movably connected between the glass door plate and the blocking groove, the bottom cylinder is provided with a lower pre-tightening spring, a damping sleeve, a sliding connecting block, a moving rod and an upper pre-tightening spring surrounding the moving rod, when the glass door plate is deflected outward or inward under the wind pressure, the moving rod drives the damping sleeve and the sliding connecting block to move along the bottom cylinder, the reverse restoring force is generated by the upper pre-tightening spring and the lower pre-tightening spring, the impact energy is consumed through the elastic deformation and sliding resistance of the damping sleeve, and the opening and closing stability of the outer window is improved.

Description

Technical Field

[0001] This invention relates to the field of window technology, and in particular to a large-size exterior window with electric opening and closing and wind pressure buffering functions. Background Technology

[0002] Large-sized exterior windows are widely used in the lighting and ventilation areas of high-rise buildings, and typically consist of an outer frame, glass sashes, a pivot, and an opening and closing mechanism. Depending on the opening method, large-sized exterior windows can adopt casement, top-hung outward-opening, or bottom-hung opening structures. The top-hung outward-opening structure uses a horizontal pivot at the top of the glass sash to allow the glass sash to flip outward relative to the outer frame. Existing motorized exterior windows typically use a geared motor, electric push rod, or gear transmission mechanism to drive the glass sash to open and close. Support rods, elastic components, or damping components can be installed between the window frame and the glass sash to facilitate the rotation of the glass sash.

[0003] The above-mentioned and existing related technologies have the following drawbacks: Due to the large windward area and weight of large-sized glass window sashes, the glass window sashes are easily subjected to the pushing or suction force generated by gusts of wind during electric opening or closing, causing the rotation speed of the glass window sash to suddenly increase, and transmitting the wind pressure impact and the inertial load of the window sash to the rotating shaft, motor transmission components and outer frame connection position; at the same time, it is difficult to continuously provide a stable buffering effect in both the outward opening and inward closing directions of the glass window sash by simply relying on the geared motor to restrict the movement of the glass window sash, which is prone to window sash shaking and large closing impact. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantage that large-size glass window sashes, due to their windward area and weight, are prone to sudden speed changes and impacts on the transmission system when opened and closed by gusts of wind. The geared motor lacks bidirectional smooth buffering, resulting in window sash shaking and large impact when closing. To this end, we propose a large-size exterior window with electric opening and closing and wind pressure buffering functions.

[0005] To achieve the above objectives, this application adopts the following technical solution: a large-size exterior window with electric opening and closing and wind pressure buffering functions, including an outer frame and a baffle groove set on the outer edge of the outer frame. A glass door panel is movably arranged between the inner walls of the baffle groove. A rotating shaft is fixedly connected to the top of both ends of the glass door panel. The ends of the rotating shafts are rotatably connected to the inner walls on both sides of the baffle groove. A buffer rod is movably connected to the outer walls on both ends of the glass door panel near the interior. The other end of the buffer rod is movably connected to the inner wall of the baffle groove. An isolation box is fixedly connected to the top of one side wall of the outer frame. A reduction motor is fixedly connected to the top of the isolation box. The bottom of the reduction motor drive shaft extends through into the isolation box and is fixedly connected to a bevel gear set. The rotating shaft at one end of the glass door panel extends through into the isolation box. The end of the rotating shaft inside the isolation box is fixedly connected to another gear of the bevel gear set.

[0006] The buffer rod includes a bottom cylinder movably connected to the inner wall of the baffle groove. A lower preload spring is fixedly connected to the bottom plate of the bottom cylinder. A damping sleeve is fixedly connected to the top of the lower preload spring. A sliding connecting block is fixedly connected to the outside of the damping sleeve. A moving rod is fixedly connected to the top of the damping sleeve. The top of the moving rod extends through to the top of the bottom cylinder and is movably connected to the outer wall of the glass door panel. An upper preload spring is fixedly connected between the top plate of the bottom cylinder and the top of the damping sleeve. The upper preload spring is arranged around the moving rod.

[0007] Preferably, a chuck is fixedly connected to the outer wall of the rotating shaft inside the isolation box, and a slot is provided on one side edge of the chuck. An electric lifting rod is fixedly connected to the inner wall of the isolation box below the rotating shaft, and a locking block is fixedly connected to the top of the electric lifting rod, with the locking block corresponding to the slot.

[0008] Preferably, a controller is installed on the outer wall of the outer frame on the same side as the isolation box, and the controller is electrically connected to the electric lifting rod and the geared motor.

[0009] Preferably, funnel holes are evenly spaced on the bottom plate of the baffle, and a one-way row of holes is provided inside the outer frame below the funnel holes. The outlet of the one-way row of holes extends obliquely downward to the side wall at the bottom of the outer frame.

[0010] Preferably, the glass door panel includes a frame and tempered glass fixedly connected between the inner walls of the two ends of the frame. Several first shielding plates are fixedly connected at even intervals between the inner walls of the frame between the tempered glass panels. Second shielding plates are movably arranged between the gaps of adjacent first shielding plates. The first shielding plates and second shielding plates are distributed alternately in sequence.

[0011] Preferably, the first and second shields are paired up, and the adjacent ends of the first and second shields in each pair are wedge-shaped, with the wedge directions of the first and second shields being parallel to each other.

[0012] Preferably, a first limiting groove is provided inside the first cover plate, the port of the first limiting groove extends to the wedge-shaped surface of the first cover plate, a second limiting groove is provided on one side of the first limiting groove, the port of the second limiting groove extends to the side wall of the first cover plate, a limiting rod is movably engaged in the first limiting groove, the two ends of the limiting rod are spherical, a spherical groove is provided inside the adjacent part of the wedge-shaped surface of the second cover plate, the spherical groove extends to the wedge-shaped surface of the second cover plate, and the other end of the limiting rod is movably engaged in the spherical groove.

[0013] Preferably, traction ropes are fixedly connected to the upper and lower outer walls of the second shield on the side away from the port of the baffle. Both ends of the traction ropes pass through the side wall of the frame that is closer to the interior. The two sets of traction ropes are connected to each other after passing through the frame.

[0014] Preferably, a receiving groove is provided on the side wall of the frame adjacent to the traction rope, and when the glass door panel is engaged in the groove, the buffer rod is stored in the receiving groove.

[0015] Preferably, a storage cavity is provided inside the frame at the traction rope through hole, the storage cavity is filled with grease, a sealing bushing is fixedly provided at the traction rope through hole, the traction rope is sleeved inside the sealing bushing, and a flexible conical head is fixedly connected to the side wall of the end of the sealing bushing, the flexible conical head is wrapped around the outside of the traction rope.

[0016] The technical effects and advantages of this invention are as follows:

[0017] In this invention, the torque output by the geared motor is stably transmitted to the glass door panel through the cooperation of the geared motor, bevel gear set, and rotating shaft. This allows the glass door panel to open outward or close inward around the top horizontal axis, realizing the electric opening and closing of large-sized windows and reducing the pushing and pulling force required for manual operation. The isolation box separates the bevel gear set and the transmission end of the rotating shaft from the external environment, reducing the impact of rainwater and dust on the transmission connection position and improving the stability of power transmission. The top of both ends of the glass door panel are rotatably connected to the baffle groove through coaxially set rotating shafts, making the glass door panel more evenly stressed and reducing the possibility of skewing and jamming during the opening and closing of large-sized glass door panels. Buffer rods are set at both ends of the glass door panel near the interior side. The two buffer rods can jointly bear the wind pressure load on the glass door panel from both sides, suppressing the glass door panel under the action of gusts. The resulting swaying and sudden changes in rotation speed; the upper and lower pre-tension springs inside the buffer rod are located on both sides of the damping sleeve. When the glass door panel is accelerated outward by wind suction, the upper pre-tension spring increases the compression and generates a reverse restoring force; when the glass door panel is pushed inward by wind or enters the final closed stage, the lower pre-tension spring increases the compression and limits the movement speed, thus forming continuous buffering in both directions of movement; the damping sleeve and sliding connecting block move along the bottom cylinder axially with the moving rod, and consume the energy generated by wind pressure impact and glass door panel inertia through elastic deformation and sliding resistance, reducing the closing impact and the instantaneous load transmitted to the rotating shaft, bevel gear set, reduction motor and outer frame connection position, so that the glass door panel remains stable in the wind state when opening, closing and after opening, improving the opening and closing reliability and service life of large-size exterior windows. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the closed state structure of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0020] Figure 2 This is a schematic diagram of the open state structure of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0021] Figure 3This is a schematic diagram of the installation structure of a reduction motor, bevel gear set, and rotating shaft for a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0022] Figure 4 This is a schematic diagram of a buffer rod structure for a large-sized exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0023] Figure 5 This is a cross-sectional view of the buffer rod structure of a large-sized exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0024] Figure 6 This is a schematic diagram of the light-shielding structure of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0025] Figure 7 This is a schematic diagram of the light transmission structure of a glass door panel of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0026] Figure 8 This is a schematic diagram of the assembly of the first and second shading plates of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0027] Figure 9 This invention relates to a large-size exterior window with electric opening and closing and wind pressure buffering functions. Figure 8 Enlarged structural diagram at point A in the middle;

[0028] Figure 10 This is a partial cross-sectional view of the outer frame at the unidirectional row of holes of a large-sized exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0029] Figure 11 This is a schematic diagram of the assembly of the outer frame and traction rope of a large-size exterior window with electric opening and closing and wind pressure buffering functions according to the present invention.

[0030] In the diagram: 1. Outer frame; 11. Baffle groove; 12. Funnel hole; 13. One-way row of holes; 2. Glass door panel; 201. Frame; 2011. Storage cavity; 2012. Sealing bushing; 2013. Flexible conical head; 202. Tempered glass; 203. First cover plate; 204. Second cover plate; 205. First limiting groove; 206. Second limiting groove; 207. Limiting rod; 208. Spherical groove; 209. Traction rope; 21. Rotating shaft; 3. Buffer rod; 31. Bottom cylinder; 32. Lower preload spring; 33. Damping sleeve; 34. Sliding connecting block; 35. Moving rod; 36. Upper preload spring; 4. Isolation box; 5. Gear motor; 6. Bevel gear set; 7. Chuck; 71. Bayonet; 8. Electric lifting rod; 9. Locking block; 10. Controller. Detailed Implementation

[0031] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0032] Reference Figure 1 and Figure 2 As shown, the present invention provides a technical solution: a large-size exterior window with electric opening and closing and wind pressure buffering functions. The exterior window adopts an upward-hung outward opening form and includes components such as an outer frame 1, a pivot 21, a glass door panel 2, a buffer rod 3, a reduction motor 5, and a bevel gear set 6. The outer frame 1 has an external width of 1800 mm and a height of 1500 mm. The outer frame 1 is fixed to the building opening by expansion bolts. The space between the outer frame 1 and the opening is filled with weather-resistant sealing material. The glass door panel 2 has an external width of 1660 mm and a height of 1360 mm. The maximum opening angle is set to 30 degrees. A continuous groove 11 is formed on the outer edge of the outer frame 1. The groove 11 opens to the outside. After the glass door panel 2 is closed, it is embedded in the groove 11. A continuous sealing strip is installed at the contact position between the groove 11 and the glass door panel 2. The sealing strip is compressed after the glass door panel 2 enters the groove 11, forming a circumferential seal.

[0033] A rotating shaft 21 is fixed at each of the top ends of the glass door panel 2. The two rotating shafts 21 are coaxial and are mounted on the inner walls of the side grooves 11 via bearings. The outer ring of the bearing is fixed inside the outer frame 1, and the inner ring of the bearing engages with the rotating shaft 21, allowing the glass door panel 2 to rotate around the top horizontal axis. An isolation box 4 is fixed at the top right side of the outer frame 1. The isolation box 4 consists of a metal box body and a removable cover plate. A sealing gasket is provided at the connection position of the box body. A reduction motor 5 is vertically fixed at the top of the isolation box 4. The drive shaft of the reduction motor 5 extends downward into the isolation box 4. A bevel gear set 6 consists of a driving bevel gear and a driven bevel gear. The driving bevel gear is fixed at the lower end of the drive shaft of the reduction motor 5, and the driven bevel gear is fixed at the end of the horizontally arranged rotating shaft 21. The two bevel gears mesh with each other. When the reduction motor 5 rotates forward, the driving bevel gear drives the driven bevel gear and the rotating shaft 21 to rotate, and the glass door panel 2 opens to the outside. When the reduction motor 5 rotates in reverse, the glass door panel 2 closes towards the side groove 11.

[0034] In this embodiment, the geared motor 5 is a reversible geared motor with a rated voltage of 220 volts, an output speed of 0.75 revolutions per minute, and a rated output torque of 800 Nm. The geared motor 5 is equipped with two mechanical travel limiters. One travel limiter corresponds to the position where the glass door panel 2 is fully inserted into the retaining groove 11, and the other travel limiter corresponds to the 30-degree opening position. After installation, the travel adjustment component is rotated so that the two stop positions correspond to the closed position and the maximum opening position, respectively. The tooth surface of the bevel gear set 6 is coated with gear grease, and the isolation box 4 prevents rainwater and dust from directly contacting the bevel gear set 6.

[0035] Reference Figure 3 The chuck 7 is fixed on the rotating shaft 21 inside the isolation box 4. The chuck 7 rotates synchronously with the rotating shaft 21. The latch 71 is opened on the periphery of the chuck 7. The center line of the latch 71 remains vertical when the glass door panel 2 is opened to the full position. The electric lifting rod 8 is vertically fixed below the rotating shaft 21. The latch 9 is fixed to the telescopic end of the electric lifting rod 8. The latch 71 is opened on the periphery of the chuck 7. The position of the latch 71 corresponds to the preset opening angle of the glass door panel 2. When the glass door panel 2 is opened to 30 degrees, the latch 71 rotates to be directly above the latch 9. The upper width of the latch 9 is smaller than the width of the latch 71. The angle is 0.5 mm, allowing the locking block 9 to smoothly enter the bayonet 71. After the electric lifting rod 8 extends, the locking block 9 enters the bayonet 71 and restricts the rotation of the chuck 7. The rotating shaft 21 and the glass door panel 2 are then kept in the 30-degree open position. The chuck 7 and the locking block 9 bear the fall torque generated by the weight of the glass door panel 2 and the wind pressure, maintaining the window opening height and suspension stability, and preventing the glass door panel 2 from falling back towards the baffle 11. After the electric lifting rod 8 retracts, the locking block 9 completely leaves the rotation range of the chuck 7, releasing the restriction on the rotating shaft 21, and the glass door panel 2 can be closed under the drive of the reduction motor 5.

[0036] The controller 10 is installed on the inner side wall of the outer frame 1 on the same side as the isolation box 4. The controller 10 includes an on button, an off button, a stop button, two sets of interlocking relays and a time delay relay. The two sets of interlocking relays control the forward and reverse rotation of the geared motor 5 respectively. The electrical interlock prevents the forward and reverse circuits from being connected at the same time. The time delay relay controls the action interval between the electric lifting rod 8 and the geared motor 5. The controller 10, the electric lifting rod 8 and the geared motor 5 are electrically connected by wires laid along the inside of the outer frame 1. The position where the wires pass through the outer frame 1 is sealed with a sealing sleeve.

[0037] After the user presses the open button, the controller 10 keeps the electric lifting rod 8 in the retracted state, and the locking block 9 is outside the rotation range of the chuck 7. After a 1-second delay, the forward rotation relay is activated, and the reduction motor 5 drives the rotating shaft 21 to rotate via the bevel gear set 6, opening the glass door panel 2 outward. When the glass door panel 2 reaches the 30-degree opening position, the travel limit device is activated to cut off the forward rotation circuit, and the reduction motor 5 stops. After another 1 second, the controller 10 extends the electric lifting rod 8, and the locking block 9 moves upward into the bayonet 71 to lock the chuck 7 and the rotating shaft 21. The self-locking characteristic of the reduction motor 5 keeps the glass door panel 2 at the current opening height. After the user presses the close button, the controller 10 first retracts the electric lifting rod 8, and the locking block 9 moves downward out of the bayonet 71. After confirming that the locking block 9 is completely out of the rotation range of the chuck 7 and after a 1-second delay, the reverse rotation relay is activated, and the reduction motor 5 drives the glass door panel 2 to rotate towards the retaining groove 11. When the glass door panel 2 presses against the circumferential sealing strip, the travel limit device is closed to cut off the reverse rotation circuit, and the locking block 9 remains in the exited position.

[0038] Reference Figure 4 and Figure 5 Two buffer rods 3 are symmetrically installed on the side of the glass door panel 2 closest to the interior. The lower end of the bottom cylinder 31 of each buffer rod 3 is hinged to the inner wall of the groove 11 by a pin, and the upper end of the moving rod 35 is hinged to the frame 201 of the glass door panel 2 by a pin. The axes of the two pins are parallel to the rotating shaft 21, so that the buffer rod 3 can change the tilt angle as the glass door panel 2 rotates. When the glass door panel 2 is opened, the moving rod 35 extends out from the bottom cylinder 31; when the glass door panel 2 is closed, the moving rod 35 retracts into the bottom cylinder 31.

[0039] The bottom cylinder 31 adopts a cylindrical structure with closed ends. A guide hole is opened in the center of the top plate to slide with the moving rod 35. The lower preload spring 32 is installed between the bottom plate of the bottom cylinder 31 and the damping sleeve 33. The upper preload spring 36 is installed between the top plate of the bottom cylinder 31 and the damping sleeve 33 and is sleeved on the outside of the moving rod 35. Both the lower preload spring 32 and the upper preload spring 36 are cylindrical helical compression springs. After being installed in the bottom cylinder 31, they are kept in a pre-compressed state. When the moving rod 35 moves within the entire working stroke, neither spring will disengage from its fixed end.

[0040] The damping sleeve 33 is made of polyurethane elastic material. The center of the damping sleeve 33 is fixed to the lower end of the moving rod 35. The sliding connecting block 34 is an annular nylon guide block, which is fixedly fitted on the outside of the damping sleeve 33. The outer circular surface of the sliding connecting block 34 slides in fit with the inner wall of the bottom cylinder 31. A radial gap of 0.1 mm is maintained between the sliding connecting block 34 and the inner wall of the bottom cylinder 31, so that the sliding connecting block 34 can move axially along the bottom cylinder 31 and restrict the lateral swing of the moving rod 35. When the damping sleeve 33 is subjected to axial impact, it generates elastic deformation. When the sliding connecting block 34 moves, it forms stable friction with the inner wall of the bottom cylinder 31. The two effects together consume the instantaneous energy transmitted by the glass door panel 2.

[0041] In this embodiment, the effective stroke of each buffer rod 3 is 120 mm, the stiffness of the lower preload spring 32 and the upper preload spring 36 are both 18 N / mm, and the initial preload force is 360 N / mm. When the glass door panel 2 is in the closed position, the damping sleeve 33 is located in the lower part of the bottom cylinder 31, and both springs remain compressed. When the glass door panel 2 is in the 30-degree open position, the extension of the moving rod 35 does not exceed 120 mm, the upper preload spring 36 still retains its preload, and the lower preload spring 32 has not reached its free length, thus ensuring that bidirectional elastic constraint exists continuously throughout the entire opening and closing stroke.

[0042] When the glass door panel 2 opens outward, the moving rod 35 drives the damping sleeve 33 and the sliding connecting block 34 to move towards the top plate of the bottom cylinder 31. The upper pre-tension spring 36 increases the compression amount, and the lower pre-tension spring 32 decreases the compression amount but continues to maintain pre-tension. The reverse elastic force generated by the upper pre-tension spring 36 limits the outward rotation speed of the glass door panel 2. When the glass door panel 2 closes inward, the damping sleeve 33 and the sliding connecting block 34 move towards the bottom plate of the bottom cylinder 31. The lower pre-tension spring 32 increases the compression amount, and the upper pre-tension spring 36 decreases the compression amount and maintains pre-tension. The lower pre-tension spring 32 provides a gradually increasing reverse elastic force at the end of the closing process to reduce the impact when the glass door panel 2 enters the retaining groove 11.

[0043] When the glass door panel 2 is in the process of opening or in the open position, the outdoor suction pushes the glass door panel 2 to continue rotating outward, the buffer rod 3 works in the outward opening direction, and the upper pre-tension spring 36 increases the compression amount; the outdoor positive pressure pushes the glass door panel 2 to rotate inward, the buffer rod 3 works in the inward closing direction, the lower pre-tension spring 32 increases the compression amount, the damping sleeve 33 and the sliding connecting block 34 generate resistance when moving in both directions, so the reciprocating sway caused by gusts can be continuously attenuated. After the glass door panel 2 reaches the 30-degree opening position and is locked by the locking block 9, the chuck 7 and the locking block 9 restrict the rotation of the rotating shaft 21 in the closing direction and bear the fall torque generated by the weight of the glass door panel 2 and the wind pressure; the two buffer rods 3 continue to absorb the impact caused by the wind pressure fluctuation, so that the glass door panel 2 remains stable at the set opening height and prevents the glass door panel 2 from falling back unexpectedly.

[0044] Reference Figure 10 A funnel-shaped hole 12 is formed every 80 mm along the horizontal direction on the bottom plate of the baffle 11. The upper diameter of the funnel-shaped hole 12 is 8 mm and the lower diameter is 4 mm. The upper area is larger to facilitate the collection of rainwater entering the baffle 11. The lower end of each funnel-shaped hole 12 is connected to a one-way drainage hole 13 inside the outer frame 1. The one-way drainage hole 13 is inclined downward at 10 degrees from the inlet to the outdoor outlet, and the outlet is located on the outer side of the bottom of the outer frame 1.

[0045] A 0.8 mm thick silicone sealing sheet is installed at the outdoor outlet of the one-way drain hole 13. The upper edge of the silicone sealing sheet is fixed above the outlet, and the lower edge freely fits the outlet end face. When the sealing strip on the outside of the frame 201 ages and fails, rainwater seeps into the gap between the frame 201 and the baffle groove 11. After the water in the baffle groove 11 enters the one-way drain hole 13, the water pressure pushes open the silicone sealing sheet and flows to the outside. When the outdoor airflow or rainwater acts on the outer surface of the silicone sealing sheet, the silicone sealing sheet adheres tightly to the outlet end face, restricting the airflow and rainwater from entering in the opposite direction. The funnel hole 12 cooperates with the downward-sloping one-way drain hole 13 to prevent continuous water accumulation at the bottom of the baffle groove 11.

[0046] Reference Figure 6 and Figure 7 The glass door panel 2 includes an aluminum alloy frame 201 and two tempered glass panels 202. The two tempered glass panels 202 are both 6 mm thick and are fixed to the two ends of the frame 201 respectively. The tempered glass panels 202 and the frame 201 are fixed together by structural adhesive and sealing strips. After vacuuming, a closed cavity is formed between the two tempered glass panels 202, so that the window can achieve the effect of sound insulation and noise reduction. The first cover 203 and the second cover 204 are installed in the closed cavity, so they are not directly affected by outdoor rain, dust and wind.

[0047] Multiple first cover plates 203 are arranged horizontally and evenly at intervals along the frame 201. The upper and lower ends of each first cover plate 203 are fixed to the frame 201. Second cover plates 204 are respectively arranged between adjacent first cover plates 203. The upper and lower ends of the second cover plates 204 maintain an movable gap with the frame 201. Each first cover plate 203 and an adjacent second cover plate 204 form a group. The adjacent ends of the two cover plates form wedge-shaped surfaces with the same inclination direction. The thickness of the closed cavity is greater than the thickness of the two cover plates after they are stacked, so that the second cover plate 204 can move to the rear side of the first cover plate 203 along the wedge-shaped surface guidance direction.

[0048] Reference Figure 8 and Figure 9 The first limiting groove 205 extends along the width direction of the first cover plate 203. The second limiting groove 206 communicates with the first limiting groove 205. The groove width of the second limiting groove 206 is smaller than the diameter of the spherical end of the limiting rod 207 and larger than the diameter of the rod body of the limiting rod 207. One end of the limiting rod 207 is located in the first limiting groove 205, and the rod body extends out from the second limiting groove 206. The other end of the limiting rod 207 is located in the spherical groove 208 of the second cover plate 204. When the second cover plate 204 moves, the first end of the limiting rod 207 slides along the first limiting groove 205, the rod body of the limiting rod 207 moves along the second limiting groove 206, and the second end of the limiting rod 207 rotates in the spherical groove 208. This connection method provides the second cover plate 204 with lateral travel and a small degree of deflection freedom, and restricts the second cover plate 204 from falling off through the two end balls.

[0049] Two sets of traction ropes 209 are respectively connected to the upper and lower ends of each second cover plate 204. Each set of traction ropes 209 is arranged along the inner side of the frame 201 and fixed at the connection position of each second cover plate 204. The same-direction ends of the upper traction rope 209 and the lower traction rope 209 are connected to each other after passing through the frame 201, forming a light-blocking operation end and a light-transmitting operation end. When the light-blocking operation end is pulled, the upper and lower sets of traction ropes 209 simultaneously drive the second cover plate 204 into the space between the adjacent first cover plate 203. The first cover plate 203 and the second cover plate 204 together cover the light-transmitting area of ​​the glass door panel 2, forming... Figure 6 The light-blocking state is shown.

[0050] When the light-transmitting operating end is pulled, the traction rope 209 drives the second shield 204 to move in the opposite direction. The wedge-shaped surface guides the second shield 204 to shift towards the rear side of the first shield 203. The limiting rod 207 moves within the first limiting groove 205 and the second limiting groove 206 until the second shield 204 and the first shield 203 coincide in the thickness direction, forming a light-transmitting gap between adjacent first shields 203. Figure 7 In the light-transmitting state shown, the two ends of the first limiting groove 205 form the end point of the travel, preventing the second shield 204 from exceeding the light-blocking position or the light-transmitting position.

[0051] The frame 201 has elongated receiving grooves near the two buffer rods 3. The openings of the receiving grooves face the baffle 11. When the glass door panel 2 is closed, the buffer rods 3 rotate around the pins at both ends and enter the receiving grooves. The bottom cylinder 31 and the moving rod 35 are both located within the receiving grooves. The depth of the receiving grooves is greater than the outer diameter of the buffer rods 3 to prevent the buffer rods 3 from colliding with the bottom surface of the baffle 11, so that the glass door panel 2 can completely enter the baffle 11 and press the sealing strip.

[0052] Reference Figure 11 A storage cavity 2011 is provided at the position where the traction rope 209 passes through the frame 201. The storage cavity 2011 has a volume of 20 ml and is filled with 12 ml of silicone grease. Space is reserved to accommodate the volume change caused by the movement of the traction rope 209. The sealing bushing 2012 is fixed in the through hole of the traction rope 209. The inner hole of the sealing bushing 2012 slides with the traction rope 209. The flexible conical head 2013 is made of silicone rubber. Its large end is fixed to the end of the sealing bushing 2012, and its small end elastically covers the outer periphery of the traction rope 209.

[0053] When the traction rope 209 moves outward, the grease carried on its surface from the storage cavity 2011 passes through the sealing sleeve 2012, and the flexible conical head 2013 scrapes the grease into a thin layer, which remains on the surface of the traction rope 209. When the traction rope 209 moves inward, the grease on its surface is carried back to the storage cavity 2011, and the flexible conical head 2013 prevents dust from entering. This structure continuously provides lubrication during the reciprocating motion of the traction rope 209 and reduces grease seepage from the through hole to the outside of the frame 201. At the same time, the grease is used to assist in sealing the vacuum layer between the glass panes, preventing leakage of the vacuum layer during the adjustment of the traction rope 209, which would affect the sound insulation effect of the glass.

[0054] During installation, first fix the outer frame 1 to the building opening and correct its horizontal and vertical alignment. Then, install the two rotating shafts 21 into the corresponding bearings. Next, fix the isolation box 4, the reduction motor 5, and the bevel gear set 6, and correct the meshing position of the driving bevel gear and the driven bevel gear. The two buffer rods 3 are connected to the retaining groove 11 and the frame 201 respectively. The moving rod 35 must not reach the end of its travel when the glass door panel 2 is closed. After completing the wiring of the controller 10, adjust the opening travel limit and the closing travel limit, and then perform three complete opening and closing operations. Confirm that after the glass door panel 2 reaches the 30-degree opening position each time, the latch 71 can be aligned vertically with the latch 9, the latch 9 can enter the latch 71 and keep the glass door panel 2 stably suspended. Before the closing action begins, the latch 9 can completely exit the latch 71, and the buffer rod 3 does not jam during the opening and closing process.

[0055] During normal use, the electric opening and closing mechanism, bidirectional buffer, and opening suspension locking work together. The geared motor 5 provides the continuous torque required for the rotation of the glass door panel 2, and the buffer rod 3 limits sudden speed changes caused by wind pressure and inertia. After the glass door panel 2 reaches the preset opening height, the locking block 9 enters the locking slot 71 and restricts the rotation of the chuck 7, keeping the glass door panel 2 stably open and preventing it from falling back. When it is necessary to close the glass door panel 2, the locking block 9 first exits the locking slot 71, and then the geared motor 5 drives the glass door panel 2 back into the baffle groove 11. Rainwater enters the baffle groove 11 and is discharged through the funnel hole 12 and the one-way discharge hole 13. When it is necessary to adjust the indoor lighting, the relative positions of the first baffle 203 and the second baffle 204 can be switched by pulling the corresponding traction rope 209 operating end on the indoor side.

[0056] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A large-size exterior window with electric opening and closing and wind pressure buffering functions, characterized in that, The device includes an outer frame and a retaining groove along the outer edge of the outer frame. A glass door panel is movably installed between the inner walls of the retaining groove. A rotating shaft is fixedly connected to the top of each end of the glass door panel. The ends of the rotating shafts are rotatably connected to the inner walls of both sides of the retaining groove. A buffer rod is movably connected to the outer walls of the glass door panel on the side closest to the interior. The other end of the buffer rod is movably connected to the inner wall of the retaining groove. An isolation box is fixedly connected to the top of one side wall of the outer frame. A reduction motor is fixedly connected to the top of the isolation box. The bottom of the transmission shaft of the reduction motor extends through the isolation box and is fixedly connected to a bevel gear set. A rotating shaft at one end of the glass door panel extends through the isolation box and is fixedly connected to another gear of the bevel gear set inside the isolation box. The buffer rod includes a bottom cylinder movably connected to the inner wall of the baffle groove. A lower preload spring is fixedly connected to the bottom plate of the bottom cylinder. A damping sleeve is fixedly connected to the top of the lower preload spring. A sliding connecting block is fixedly connected to the outside of the damping sleeve. A moving rod is fixedly connected to the top of the damping sleeve. The top of the moving rod extends through to the top of the bottom cylinder and is movably connected to the outer wall of the glass door panel. An upper preload spring is fixedly connected between the top plate of the bottom cylinder and the top of the damping sleeve. The upper preload spring is arranged around the moving rod. The glass door panel includes a frame and tempered glass fixedly connected between the inner walls of the two ends of the frame. A plurality of first shielding plates are evenly spaced and fixedly connected between the inner walls of the frame between the tempered glass panels. A second shielding plate is movably disposed between the gaps of adjacent first shielding plates. The first and second shielding plates are distributed alternately. The first and second shielding plates are paired, with adjacent ends of each pair forming a wedge-shaped structure. The wedge directions of the first and second shielding plates are parallel to each other. A first limiting groove is provided inside the first shielding plate, with its port extending to the wedge-shaped surface of the first shielding plate. A second limiting groove is provided on one side of the first limiting groove, with its port extending to the side wall of the first shielding plate. A limiting rod is movably engaged within the first limiting groove. The limiting rod has spherical ends. A spherical groove is provided inside the adjacent wedge-shaped surface of the second shielding plate, extending to the wedge-shaped surface of the second shielding plate. The other end of the limiting rod is movably engaged within the spherical groove.

2. A large-size exterior window with electric opening and closing and wind pressure buffering functions as described in claim 1, characterized in that: A chuck is fixedly connected to the outer wall of the rotating shaft inside the isolation box. A slot is provided on one side edge of the chuck. An electric lifting rod is fixedly connected to the inner wall of the isolation box below the rotating shaft. A locking block is fixedly connected to the top of the electric lifting rod, and the locking block is set corresponding to the slot.

3. A large-size exterior window with electric opening and closing and wind pressure buffering functions according to claim 2, characterized in that: A controller is installed on the outer wall of the outer frame on the same side as the isolation box. The controller is electrically connected to the electric lifting rod and the reduction motor.

4. A large-size exterior window with electric opening and closing and wind pressure buffering functions as described in claim 1, characterized in that: The bottom plate of the baffle is provided with funnel holes at even intervals, and the outer frame below the funnel holes is provided with one-way holes. The outlet of the one-way holes extends obliquely downward to the side wall at the bottom of the outer frame.

5. A large-size exterior window with electric opening and closing and wind pressure buffering functions as described in claim 1, characterized in that: The second shield has traction ropes fixedly connected to the upper and lower outer walls on the side away from the port of the baffle. Both ends of the traction ropes pass through the side wall of the frame that is closer to the interior. The two sets of traction ropes are connected to each other after passing through the frame.

6. A large-size exterior window with electric opening and closing and wind pressure buffering functions according to claim 5, characterized in that: A receiving groove is provided on the side wall of the frame adjacent to the traction rope. When the glass door panel is engaged in the retaining groove, the buffer rod is stored in the receiving groove.

7. A large-size exterior window with electric opening and closing and wind pressure buffering functions as described in claim 5, characterized in that: A storage cavity is provided inside the frame at the traction rope through hole, and the storage cavity is filled with grease. A sealing bushing is fixedly installed at the traction rope through hole, and the traction rope is sleeved inside the sealing bushing. A flexible conical head is fixedly connected to the side wall of the end of the sealing bushing, and the flexible conical head is wrapped around the outside of the traction rope.

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