Double drive type automatic smoke exhaust window

Abstract

This application relates to a dual-drive automatic smoke exhaust window, belonging to the field of smoke exhaust window technology. It includes a window frame, a window sash, and an automatic opening device. The automatic opening device includes a pneumatic window opening assembly for opening the window sash and an electric window closing assembly for controlling the closing of the window sash. The pneumatic window opening assembly includes a pneumatic push rod, with its two ends rotatably connected to the window frame and the window sash, respectively. The rotation axes at both ends of the pneumatic push rod are parallel to the rotation axis of the window sash. An air inlet check valve is installed on the air inlet pipe of the pneumatic push rod. It also includes a blowing assembly mounted on the window frame, comprising a blowing pipe and a pressure check valve. The blowing pipe is mounted on the window frame with its opening facing the dust accumulation point. The air inlet of the pressure check valve is connected to the exhaust port of the pneumatic push rod during compression, and the air outlet of the pressure check valve is connected to the air inlet of the blowing pipe. This application effectively prevents the accumulation of debris between the window frame and the window sash, ensuring the normal operation of the automatic smoke exhaust window.

Description

Technical Field

[0001] This application relates to the field of smoke exhaust window technology, and in particular to a dual-drive automatic smoke exhaust window. Background Technology

[0002] Smoke exhaust windows are windows installed in building atriums or on the exterior walls of high-rise buildings for ventilation, smoke extraction, and fire-fighting linkage. Smoke exhaust windows are often installed high up in buildings, and because manual opening and closing is inconvenient, some smoke exhaust windows are now installed as automatic systems.

[0003] In related technologies, automatic smoke exhaust windows consist of a window sash, a window frame, and automatic opening devices installed on the window sash and window frame respectively; the window sash hinges are installed on the window frame, and the automatic opening device is located on the side away from the hinge connection end; the automatic opening device consists of an opener, an alarm, and control devices, and can automatically open the window sash within seconds after a fire occurs to promptly exhaust smoke.

[0004] Regarding the aforementioned technologies, outward-opening smoke exhaust windows are frequently used as ventilation windows in daily life, remaining open for airflow. Dust or debris easily accumulates on the window frame, which may affect the normal opening and closing of the smoke exhaust window after a period of time. Because the smoke exhaust window is installed high up, it is inconvenient for manual maintenance. Therefore, the inventor provides a dual-drive automatic smoke exhaust window. Summary of the Invention

[0005] To prevent dust and debris from affecting the normal opening and closing of the automatic smoke exhaust window, this application provides a dual-drive automatic smoke exhaust window.

[0006] The dual-drive automatic smoke exhaust window provided in this application adopts the following technical solution:

[0007] A dual-drive automatic smoke exhaust window includes a window frame, a window sash, and an automatic opening device. The automatic opening device includes a pneumatic window opening assembly for opening the window sash and an electric window closing assembly for controlling the closing of the window sash.

[0008] The pneumatic window opening assembly includes a pneumatic push rod, the two ends of which are rotatably connected to the window frame and the window sash, respectively. The rotation axes at both ends of the pneumatic push rod are parallel to the rotation axis of the window sash. An air inlet one-way valve is installed on the air inlet pipe of the pneumatic push rod.

[0009] It also includes a purge assembly mounted on the window frame, the purge assembly comprising a purge pipe and a pressure check valve; the purge pipe is mounted on the window frame with its opening facing the dust accumulation point; the air inlet of the pressure check valve is connected to the exhaust port when the pneumatic push rod is compressed, and the air outlet of the pressure check valve is connected to the air inlet of the purge pipe.

[0010] By adopting the above technical solution, in daily use, the pneumatic window opening assembly is used to open the window sash, and the electric window closing assembly is used to close it. During the closing process, the pneumatic push rod is subjected to the pressure of the closing window sash, and the gas inside the pneumatic push rod is discharged from its own exhaust port. As the gas inside the pneumatic push rod is pressurized, the pressure increases to the point that it opens the pressure check valve, and the compressed gas inside the pneumatic push rod is rapidly ejected from the blowpipe. In this way, during the closing process, high-pressure gas blows away dust and debris that easily accumulates on the window frame, removing debris between the window frame and the window sash, and preventing the opening and closing of the window sash from being affected by debris.

[0011] Optionally, the side of the intake check valve away from the pneumatic push rod is connected to a normally closed window-opening solenoid valve; the pressure check valve is a check valve controlled by both air pressure and pressure spring, the control air pressure pipeline of the pressure check valve is connected to the air path between the window-opening solenoid valve and the intake check valve, and a normally open window-closing solenoid valve is connected in series on the control air pressure pipeline of the pressure check valve; a pressure-holding check valve to prevent gas backflow is provided between the window-closing solenoid valve and the window-opening solenoid valve.

[0012] By adopting the above technical solution, when the window-opening solenoid valve is opened, the air source simultaneously supplies air to the pneumatic push rod and the pressure check valve. After the window-opening solenoid valve is closed, the pressure-holding check valve maintains the air pressure of the control pressure check valve; the air inlet check valve maintains the lifting of the pneumatic push rod. This reduces the demand for spring pressure and avoids the potential malfunctions associated with single-spring pressure control. When the window is closed, the window-closing solenoid valve is activated, releasing the control air pressure of the pressure check valve. The reduced pressure in the pressure check valve allows the air pressure within the pneumatic push rod to easily open the pressure check valve, quickly expelling the gas and ensuring complete gas removal for full window sash closure. This also reduces the power consumption of the electric window closing assembly.

[0013] Optionally, the electric window closing assembly includes a small motor, a take-up reel, and a traction rope; the small motor is mounted on the window frame, and the take-up reel is fixed to the shaft of the small motor; the traction rope is wound around the take-up reel, with one end of the traction rope fixed to the take-up reel; the other end of the traction rope is fixed to the window sash, and the end of the traction rope is fixed to the movable end of the window sash; the number of traction ropes corresponds to the number of pneumatic push rods, and the traction rope and the pneumatic push rod are in one-to-one correspondence.

[0014] By employing the above technical solution, a small motor is used to wind a traction rope to pull the movable end of the window sash, thereby closing the window. During the closing process, the exhaust pressure of the pneumatic push rod acts as a buffer, preventing the window sash from closing at high speed. The end of the traction rope is fixed to the movable end of the window sash, using the lever principle to improve efficiency and reduce power consumption. The traction rope and the pneumatic push rod correspond one-to-one, which helps stabilize the downward pulling force of the window sash, thus ensuring the stable opening and closing of the window sash.

[0015] Optionally, the window frame is a hollow profile, and the small motor and the first wheel are disposed inside the profile of the window frame; a guide tube is fixed on the inner side wall of the window frame, and the traction rope passes through the guide tube and is connected to the window sash; a chamfer is provided at the inner hole of the guide tube near the window sash.

[0016] By adopting the above technical solution, the motorized window closing components are installed discreetly, ensuring the overall aesthetics of the smoke exhaust window. A conduit is installed to pull the traction rope, reducing wear and tear during the rope's deployment and retraction.

[0017] Optionally, a guide wheel is also rotatably installed inside the window frame profile, and the guide wheel corresponds one-to-one with the pneumatic push rod and is set adjacent to the corresponding pneumatic push rod.

[0018] By adopting the above technical solution, a guide wheel is set up to guide multiple strands of traction rope on a winding wheel to the corresponding pneumatic push rod position, so as to ensure smooth winding and unwinding of the traction rope.

[0019] Optionally, a sealing strip is fixed to the periphery of the window sash, and a receiving panel is provided on the window frame corresponding to the sealing strip, with the sealing strip abutting against the receiving panel; the air outlet of the purge pipe faces the receiving panel.

[0020] By adopting the above technical solutions, the sealing performance of the window sash and window is more reliable after closure, and the sealing strip can play a buffering role to reduce vibration; correspondingly, the blow pipe is directed towards these receiving panels, which helps to ensure the cleanliness of the receiving panels and prevent the opening and closing of the window sash from being affected.

[0021] Optionally, the purge tube includes a tube body and an air cap. The tube body is provided with a protruding air inlet. The air cap covers the air inlet and is slidably disposed within the air inlet. The air cap is provided with a limiting part to prevent the air cap from detaching from the air inlet. An air outlet is provided through the profile surface of the window frame corresponding to the air inlet. The air inlet is inserted into the air outlet. When the air cap is fully lifted, it detaches from the profile surface of the window frame.

[0022] By adopting the above technical solution, an air cover is set to block the gas blown out of the air outlet, and the gas is transformed into an airflow that sweeps along the surface of the window frame profile. This is to better ensure the cleanliness of the receiving panel surface when the window frame profile body surface is used directly as the receiving panel.

[0023] Optionally, it also includes hinges and posts, the window sash is rotatably mounted on the window frame via the hinges, and the window frame is fixed to the posts; a decorative panel extends from the side of the window sash near the hinge to cover the hinge; a placement groove is provided on the side of the posts near the window frame, and the decorative panel rotates within the placement groove.

[0024] By adopting the above technical solution, the hinges of the window sash can be hidden, improving the overall aesthetics of the window.

[0025] Optionally, decorative panels are symmetrically arranged on both sides of the window sash, and corresponding placement grooves are provided on the columns on both sides of the window frame; a sealing strip is fixed on the side of the decorative panel near the column, and a pressing edge that abuts against the wall of the placement groove is integrally provided on the side of the sealing strip near the column, and the cross section of the pressing edge is in the shape of a paddle.

[0026] By adopting the above technical solution, the installation of sealing strips can not only improve the sealing performance of the window after it is closed, but also prevent impurities from entering between the window sash and the window frame.

[0027] Optionally, the hinge can rotate at an angle of 0° to 70°.

[0028] By adopting the above technical solution, controlling the rotation angle of the hinge is equivalent to controlling the opening range of the window sash, preventing the baffle from colliding with the pillar, and ensuring the normal opening and closing of the window sash.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By setting up pneumatic window opening components, electric window closing components, and blowing components, airflow is used to blow the contact surfaces between the window frame and the window sash, hinge joints, and other positions during the window sash closing process. This prevents the accumulation of impurities from affecting the normal opening and closing of the window sash, reduces the probability of automatic smoke exhaust window failure, and ensures the normal use of automatic smoke exhaust window.

[0031] 2. By using a pressure check valve with dual control of air pressure and pressure spring to control the air intake of the purge tube, and by using a closed-window solenoid valve to control the control air pressure of the pressure check valve, the blowing pressure of the purge tube can be controlled more conveniently. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the pneumatic control system according to an embodiment of this application;

[0034] Figure 3 yes Figure 1 A magnified view of area A in the middle;

[0035] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle conductor conduit;

[0036] Figure 5 This is a schematic diagram of one embodiment of the purge pipe in this example.

[0037] Reference numerals: 1. Column; 11. Placement slot; 2. Window frame; 21. Receiving panel; 3. Pneumatic window opening assembly; 31. Pneumatic push rod; 32. Air inlet pipe; 33. Air inlet check valve; 34. Window opening solenoid valve; 35. Air source; 4. Electric window closing assembly; 41. Small motor; 42. Reel; 43. Traction rope; 44. Conduit; 5. Blowing assembly; 51. Blowing pipe; 511. Pipe body; 512. Air outlet; 52. Pressure check valve; 53. Window closing solenoid valve; 54. Pressure holding check valve; 55. Air cap; 551. Limiting part; 6. Sealing strip; 61. Edge pressing; 7. Hinge; 8. Window sash; 81. Decorative panel. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] This application discloses a dual-drive automatic smoke exhaust window, referring to... Figure 1 The system includes a support column 1, a window frame 2, a window sash 8, and an automatic opening device. Both the support column 1 and the window frame 2 are hollow aluminum alloy profiles, and the frame of the window sash 8 is also made of aluminum alloy profiles. The support column 1 is bolted to the building wall; the window frame 2 is bolted to the support column 1; one side of the window sash 8 is hinged to the window frame 2 via a hinge 7, which has a rotation angle of 0° to 70°; a flange structure extends near the edge of the window sash 8 as a decorative panel 81, which conceals the hinge 7; decorative panels 81 are symmetrically arranged on both sides of the window sash 8 to maintain structural symmetry; a rectangular placement groove 11 is provided on the side of the support column near the window sash 8 to avoid the decorative panel 81 and its rotation trajectory.

[0040] refer to Figure 1 and Figure 2 The automatic opening device includes a pneumatic window opening assembly 3 that controls the opening of the window sash 8 and an electric window closing assembly 4 that controls the closing of the window sash 8.

[0041] The pneumatic window opening assembly 3 includes a pneumatic push rod 31, an air inlet pipe 32, an air inlet check valve 33, a window opening solenoid valve 34, and an air source 35. The pneumatic push rod 31 is a single-path cylinder, with its two ends rotatably connected to the window frame 2 and the window sash 8, respectively. The rotation axes at both ends of the pneumatic push rod 31 are parallel to the rotation axis of the hinge 7. The air inlet pipe 32 connects the air source 35 and the pneumatic push rod 31. The window opening solenoid valve 34 and the air inlet check valve 33 are installed sequentially on the air inlet pipe 32 from the air source 35 to the pneumatic push rod 31. The window opening solenoid valve 34 is a normally closed pneumatic solenoid valve.

[0042] It also includes a purge assembly 5 connected to the air path of the window opening assembly. The purge assembly 5 includes a purge pipe 51, a pressure check valve 52, a window closing solenoid valve 53, and a pressure holding solenoid valve. The inlet of the pressure check valve 52 is connected to the exhaust port of the pneumatic push rod 31 during compression, i.e., it is connected to the intake pipe 32 between the intake check valve 33 and the pneumatic push rod 31; the outlet of the pressure check valve 52 is connected to the inlet of the purge pipe 51; the pressure check valve 52 is a double-controlled check valve with both air pressure and pressure spring; the control air pressure pipeline of the pressure check valve 52 is connected to the intake pipe 32 between the window opening solenoid valve 34 and the intake check valve 33; a window closing solenoid valve 53 is installed on the pipeline between the pressure check valve 52 and the intake pipe 32; the window closing solenoid valve 53 is a normally open air circuit solenoid valve to control the air pressure of the pressure check valve 52; a pressure holding check valve 54 is installed on the air line between the window closing solenoid valve 53 and the intake pipe 32 to prevent gas backflow.

[0043] refer to Figure 3 and Figure 4 The electric window closing assembly 4 includes a small motor 41, a take-up reel 42, a traction rope 43, and a guide tube 44. The small motor 41 is installed inside the profile tube 511 of the window frame 2, and the take-up reel 42 is fixed to the shaft of the small motor 41. One end of the traction rope 43 is fixed to the take-up reel 42 and is wound around the take-up reel 42. The guide tube 44 is embedded in the profile side wall of the window frame 2 at the protrusion position of the traction rope 43, serving as the outlet of the traction rope 43. The other end of the traction rope 43 is fixed to the frame of the window sash 8, and the end of the traction rope 43 is fixed to the movable end of the window sash 8, i.e., the side of the window sash 8 away from the hinge 7. The traction rope 43 is fixed to the frame of the window sash 8 with screws. The guide tube is a block of Teflon material and is embedded and fixed in a pre-set hole on the window frame 2.

[0044] The number of traction ropes 43 corresponds to the number of pneumatic push rods 31. Each traction rope 43 and pneumatic push rod 31 is identical in number and positioned opposite each other to ensure a more stable application of force to close the window. When there are multiple traction ropes 43, a guide wheel can be rotatably installed inside the window frame 2 profile. The guide wheel is fixed at the position corresponding to the pneumatic push rod 31, guiding the traction rope 43 to the corresponding pneumatic push rod 31 position. A guide tube 44 is installed on the side wall of the window frame 2 at the corresponding position to guide the traction rope 43.

[0045] Sealing strips 6 are embedded and fixed at the positions where the window sash 8 contacts the window frame 2 and the post 1. The receiving surface of the window frame 2 corresponding to the sealing strip 6 serves as the receiving panel 21. The sealing strip 6 abuts against the receiving panel 21. The material of the sealing strip 6 is rubber. A pressing edge 61 that abuts against the groove wall of the placement groove 11 is integrally provided on the side of the sealing strip 6 near the post 1 and the window frame 2. The cross section of the pressing edge 61 is in the shape of a paddle.

[0046] refer to Figure 3 and Figure 5The air outlet of the purge pipe 51 should be oriented towards the receiving panel 21 for cleaning. For purge pipes 51 installed at the receiving panel 21, a special purge pipe 51 is provided, which includes a pipe body 511 and an air cap 55. The pipe body 511 is provided with a raised air outlet 512, and the air cap 55 covers the air outlet 512. The air cap 55 is integrally provided with a limiting part 551 that restricts the air cap 55 from detaching from the air outlet 512. The limiting part 551 fits against the inner wall of the air outlet 512 and forms a protrusion at the end that locks the inner wall of the pipe body 511. An air outlet is provided through the profile surface of the window frame 2 corresponding to the air outlet 512. The air outlet 512 is inserted into the air outlet. When the air cap 55 is fully lifted, it detaches from the profile surface of the window frame 2.

[0047] The implementation principle of a dual-drive automatic smoke exhaust window disclosed in this application embodiment is as follows: by setting up a pneumatic window opening component 3, an electric window closing component 4 and a blowing component 5, during the closing process of the window sash 8, the airflow is used to blow the contact surface between the window frame 2 and the window sash 8, the hinge joints and other positions, to prevent the accumulation of impurities from affecting the normal opening and closing of the window sash 8, reduce the probability of failure of the automatic smoke exhaust window, and ensure the normal use of the automatic smoke exhaust window.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-drive automatic smoke exhaust window, comprising a window frame (2), a window sash (8), and an automatic opening device, characterized in that: The automatic opening device includes a pneumatic window opening assembly (3) for opening the window sash (8) and an electric window closing assembly (4) for controlling the closing of the window sash (8); The pneumatic window opening assembly (3) includes a pneumatic push rod (31), the two ends of which are rotatably connected to the window frame (2) and the window sash (8) respectively. The rotation axes at both ends of the pneumatic push rod (31) are parallel to the rotation axis of the window sash (8). An air inlet one-way valve (33) is installed on the air inlet pipe (32) of the pneumatic push rod (31). It also includes a purge assembly (5) installed on the window frame (2), the purge assembly (5) including a purge pipe (51) and a pressure check valve (52); the purge pipe (51) is installed on the window frame (2) and the pipe opening faces the dust accumulation point; the air inlet of the pressure check valve (52) is connected to the exhaust port of the pneumatic push rod (31) when it is compressed, and the air outlet of the pressure check valve (52) is connected to the air inlet of the purge pipe (51); The intake check valve (33) is connected to a normally closed window-opening solenoid valve (34) on the side away from the pneumatic push rod (31); the pressure check valve (52) is a check valve controlled by both air pressure and pressure spring; the control air pressure pipeline of the pressure check valve (52) is connected to the air path between the window-opening solenoid valve (34) and the intake check valve (33); a normally open window-closing solenoid valve (53) is connected in series on the control air pressure pipeline of the pressure check valve (52); a pressure-holding check valve (54) is provided between the window-closing solenoid valve (53) and the window-opening solenoid valve (34) to prevent gas backflow.

2. The dual drive automatic smoke vent window according to claim 1, wherein: The electric window closing assembly (4) includes a small motor (41), a take-up reel (42), and a traction rope (43); the small motor (41) is mounted on the window frame (2), and the take-up reel (42) is fixed on the shaft of the small motor (41); the traction rope (43) is wound around the take-up reel (42), and one end of the traction rope (43) is fixed on the take-up reel (42); the other end of the traction rope (43) is fixed on the window sash (8), and the end of the traction rope (43) is fixed to the movable end of the window sash (8); the number of traction ropes (43) corresponds to the number of pneumatic push rods (31), and the traction ropes (43) and the pneumatic push rods (31) are in one-to-one correspondence.

3. A dual drive automatic smoke vent according to claim 2, wherein: The window frame (2) is a hollow profile, and the small motor (41) and the take-up reel (42) are located inside the profile of the window frame (2); a wire conduit (44) is fixed on the inner side wall of the window frame (2), and the traction rope (43) passes through the wire conduit (44) and is connected to the window sash (8); a chamfer is provided at the inner hole of the wire conduit (44) near the window sash (8).

4. The dual drive automatic smoke vent window according to claim 3, wherein: Inside the profile of the window frame (2), a guide wheel is rotatably installed. The guide wheel corresponds to the pneumatic push rod (31) and is set near the corresponding pneumatic push rod (31).

5. The dual drive automatic smoke vent window according to claim 3, wherein: A sealing strip (6) is fixed around the window sash (8), and a receiving panel (21) is provided on the window frame (2) corresponding to the sealing strip (6). The sealing strip (6) abuts against the receiving panel (21); the air outlet of the blowpipe (51) faces the receiving panel (21).

6. A dual drive automatic smoke vent according to claim 5 wherein: The purge pipe (51) includes a pipe body (511) and an air cap (55). The pipe body (511) is provided with a protruding air inlet (512). The air cap (55) covers the air inlet (512) and is slidably disposed within the air inlet (512). The air cap (55) is provided with a limiting part (551) that restricts the air cap (55) from detaching from the air inlet (512). The profile surface of the window frame (2) is provided with an air inlet that passes through the air inlet (512). The air inlet (512) is inserted into the air inlet. When the air cap (55) is fully lifted, it detaches from the profile surface of the window frame (2).

7. The dual drive automatic smoke vent window according to claim 1, wherein: It also includes a hinge (7) and a post (1). The window sash (8) is rotatably mounted on the window frame (2) via the hinge (7), and the window frame (2) is fixed on the post (1). A decorative panel (81) is provided on the side of the window sash (8) near the hinge (7) to cover the hinge (7). A placement groove (11) is provided on the side of the post (1) near the window frame (2), and the decorative panel (81) rotates in the placement groove (11).

8. A dual drive automatic smoke vent according to claim 7, wherein: The hinge (7) has a rotation angle of 0° to 70°.

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