Mute energy-saving aluminum alloy window

Abstract

The invention discloses a mute energy-saving aluminum alloy window, and relates to the technical field of windows, in particular to a building energy-saving and sound-insulating window. The window comprises a window sash frame, a screen window frame, a screen window and an ejection mechanism, and the screen window frame is installed in the window sash frame in a sliding mode and can horizontally move to a ventilation opening; the screen window is mounted in the screen window frame and can move inwards and outwards; the ejection mechanism is configured to eject the screen window after the window sash is closed so that dust on the screen window can be shaken off outdoors. The invention is mainly used for indoor ventilation and light transmission.

Description

Technical Field

[0001] The invention relates to the technical field of windows, in particular to energy-saving and sound-insulating windows for buildings. Background Art

[0002] Aluminum alloy windows refer to doors and windows made with extruded aluminum alloy profiles for frames, stiles, and sashes. Typically, low-thermal conductivity insulation strips (usually made of nylon PA66 or similar engineering plastics) are embedded within the aluminum alloy profiles to effectively separate the indoor and outdoor aluminum alloy sections. This significantly extends or blocks the heat transfer path through the metal. Furthermore, aluminum alloy doors and windows are built with multiple layers of glass to block sound waves, achieving a silent effect. In other words, existing aluminum alloy windows can achieve both energy-saving and soundproofing goals.

[0003] Existing aluminum alloy windows are usually used in conjunction with screens to ensure proper ventilation and isolate external dust and insects such as mosquitoes and ants. However, after long-term use, a lot of dust will be caught on the screens, especially in buildings near the roadside. In windy weather, the dust on the screens will be blown into the room, affecting the indoor air environment and the health of people inside. Therefore, the screens need to be removed frequently for cleaning, which affects the user experience. Summary of the Invention

[0004] In view of this, the present invention provides a silent and energy-saving aluminum alloy window, which can automatically shake off the dust on the screen window to avoid frequent disassembly of the screen window for cleaning, which affects the user's experience.

[0005] To achieve the above objectives, the present invention provides the following technical solutions.

[0006] 1. Silent and energy-saving aluminum alloy windows, including a sash frame, a screen frame, a screen and an ejection mechanism. The screen frame is slidably installed in the sash frame and can be moved horizontally to the vent; the screen is installed in the screen frame and can be moved in and out; the ejection mechanism is configured to eject the screen after the window sash is closed, so that the screen shakes off the dust on it to the outside.

[0007] When dust accumulates on the screen, there is no need to remove the screen. Simply close the window sash and the ejection mechanism will eject the screen. The screen will shake or hit the screen frame to shake the dust outside. This prevents dust from being blown into the room, affecting indoor cleanliness and the health of residents, thereby improving the user satisfaction of the screen.

[0008] 2. Based on technical solution 1, the ejection mechanism includes an ejection spring, a pull rope, a winding shaft and an ejection drive assembly. The ejection spring is connected to the screen window for ejecting the screen window; the two ends of the pull rope are respectively connected to the window frames on both sides of the screen window; the winding shaft is used to reel in the pull rope; the ejection drive assembly is connected to the winding shaft drive; the ejection drive assembly drives the winding shaft to reel in the pull rope, and the pull rope overcomes the elastic force of the ejection spring to pull the screen window toward the room. When the screen window moves into place, the winding shaft releases the pull rope, so that the screen window is repeatedly ejected under the stored energy of the ejection spring.

[0009] 3. Based on Technical Solution 2, the ejection drive assembly includes an ejection motor and a one-way bearing. The motor shaft of the ejection motor is connected to the winding shaft through a one-way bearing so that the load of the ejection motor can be separated when the winding shaft releases the pull rope.

[0010] 4. Based on Technical Solution 3, the ejection drive assembly also includes a photovoltaic panel for powering the ejection motor, and the aluminum alloy window also includes a one-way braking mechanism and a brake unlocking mechanism; the one-way braking mechanism is configured to prevent the winding shaft from rotating during the process of winding the pull rope; the brake unlocking mechanism is configured to unlock the one-way braking mechanism before the winding shaft releases the pull rope, so that the winding shaft releases the pull rope.

[0011] 5. On the basis of technical solution 4, the one-way brake mechanism includes a first pawl support, a first ratchet and a first pawl, and the first ratchet is mounted on the winding shaft; the first pawl support is slidably mounted on one side of the first ratchet, and the first pawl is rotatably mounted on the first pawl support and inserted in the first ratchet to prevent the winding shaft from rotating; the brake unlocking mechanism includes a supporting slide bar and a pawl shifting block, the supporting slide bar is connected to the pull rope to move synchronously with the pull rope; the pawl shifting blocks are provided, and the two pawl shifting blocks are mounted on the supporting slide bar and are respectively located on both sides of the first pawl support; in the process of the winding shaft winding the pull rope, one of the pawl shifting blocks moves toward the first pawl side with the supporting slide bar, and when the ejection spring is fully charged with the ejection force, the pawl shifting block pushes the first pawl to move away from the first ratchet side, so that the winding shaft can rotate; in the process of the pull rope being released, the other pawl shifting block moves toward the first pawl side with the pull rope, and the pawl shifting block pushes the first pawl to reset, so that the first pawl is inserted into the first ratchet again.

[0012] 6. Based on technical solution 5, the one-way braking mechanism also includes a pawl locking assembly for locking the first pawl and an unlocking plug for unlocking the pawl locking assembly. Before the ejection spring is fully charged with ejection force, the pawl locking assembly locks the first pawl support to prevent the first pawl from releasing the first ratchet wheel prematurely; when the ejection spring is fully charged with ejection force, the unlocking plug unlocks the pawl locking assembly so that the first pawl support can drive the first pawl away from the first ratchet wheel.

[0013] 7. Based on technical solution 6, the pawl locking assembly includes an unlocking slider, a locking pin and an elastic reset member; a sliding groove is opened in the first pawl support, the unlocking slider is slidably installed in the sliding groove of the first pawl support, and the unlocking slider is provided with a wedge-shaped slot that matches the unlocking plug block; the locking pin is installed on the unlocking slider; a locking groove is provided at a position opposite to the sliding groove, and the locking pin can be inserted in the locking groove to lock the first pawl support; the elastic reset member is installed in the sliding groove of the first pawl support for resetting the unlocking slider; the unlocking plug block is installed on one of the pawl shift blocks; during the process of winding the rope on the winding shaft, the unlocking plug block moves toward the side of the first pawl support with one of the pawl shift blocks, and when the ejection spring is fully charged with ejection force, the unlocking plug block is inserted in the wedge-shaped slot and pushes the unlocking slider backward to pull the locking pin out of the lock groove.

[0014] 8. Based on Technical Solution 2, it also includes an ejection brake mechanism for locking the ejection mechanism. Before the window sash is closed, the ejection brake mechanism can lock the winding shaft to prevent the winding shaft from rotating and releasing the pull rope; after the window sash is closed, the ejection brake mechanism unlocks the winding shaft, and the winding shaft releases the pull rope, so that the screen window shakes off dust after the window sash is closed.

[0015] 9. Based on technical solution 8, the ejection brake mechanism includes a second ratchet, a second pawl, a solenoid valve and a touch switch. The second ratchet is mounted on the winding shaft, the solenoid valve is arranged on one side of the second ratchet, the second pawl is installed on the valve core of the solenoid valve and can rotate, and the second pawl is inserted into the second ratchet to prevent the winding shaft from releasing the pull rope; the touch switch is set in the window sash frame to control the opening and closing of the solenoid valve; when the window sash is closed, the window sash activates the touch switch, and the touch switch controls the solenoid valve to energize, so that the solenoid valve drives the second pawl to be pulled out from the second ratchet.

[0016] 10. Based on technical solution 9, the ejection brake mechanism also includes a conductive slide rail and a conductive slider. The conductive slide rail is arranged along the length direction of the window sash frame. The screen frame is slidably connected to the conductive slide rail through the conductive slider. The conductive slider, conductive slide rail, touch switch, solenoid valve and power supply are connected in series to form an open circuit. When the touch switch is turned on, the open circuit forms a closed loop to power on the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the silent and energy-saving aluminum alloy window of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the silent and energy-saving aluminum alloy window of the present invention after removing the window frame and window sash.

[0019] Figure 3 It is a structural diagram of the coordination of the screen window, the ejection mechanism and the ejection brake mechanism.

[0020] Figure 4Schematic diagram of the structure of the screen window, ejection mechanism and ejection brake mechanism Figure 2 .

[0021] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0022] Figure 6 It is a structural diagram of the coordination of the ejection mechanism, ejection brake mechanism, one-way brake mechanism and brake unlocking mechanism.

[0023] Figure 7 This is a schematic diagram of the structure of the ejection mechanism, ejection brake mechanism, one-way brake mechanism and brake unlocking mechanism (after removing the fixing bracket).

[0024] Figure 8 Schematic diagram of the structure of the ejection mechanism, ejection brake mechanism, one-way brake mechanism and brake unlocking mechanism Figure 2 (After removing the fixing bracket).

[0025] Figure 9 It is a schematic diagram of the structure of the ejection brake mechanism, the one-way brake mechanism and the winding shaft.

[0026] Figure 10 Schematic diagram of the structure of the pawl locking assembly.

[0027] Figure 11 It is a structural diagram of the conductive slide rail and the touch switch.

[0028] The accompanying drawings are: Window sash frame 1; Window sash 2; Screen frame 3; Screen 4; Ejection mechanism 5, fixed bracket 51, support rail 511, lock slot 5111, ejection spring 52, pull rope 53, winding shaft 54, fixed pulley 55, upper fixed pulley 551, lower fixed pulley 552, ejection drive assembly 56, ejection motor 561, reducer 562, ejection switch 563, gear pair 564, driving gear 5641, driven gear 5642, support slide 565, switch block 566, photovoltaic panel 567, one-way bearing 568; Ejection brake mechanism 6, second pawl support 61, second pawl 62, solenoid valve 63, touch switch 64, conductive slide rail 65, conductive slide groove 651, conductive slider 66, slider mounting seat 67; One-way brake mechanism 7, first pawl support 71, slide groove 711, first ratchet 72, first pawl 73, pawl locking assembly 74, unlocking slider 741, wedge-shaped slot 7411, locking pin 742, elastic return member 743, unlocking plug 75; Brake unlocking mechanism 8, ratchet shift block 81. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 4 The silent and energy-saving aluminum alloy window of this embodiment is mainly installed in the window hole of the building wall to facilitate indoor ventilation and light intake. It includes a window sash frame 1, a window sash 2, a screen frame 3, a screen 4, an ejection mechanism 5 for shaking dust off the screen 4, and an ejection brake mechanism 6 for locking the ejection mechanism 5. Figure 1 There are two window sashes 2, and the two window sashes 2 and the screen frame 3 are slidably installed in the window sash frame 1. The screen frame 3 is located outside the two window sashes 2. The vents of the window can be closed or exposed by the translation of the window sash 2 and the screen frame 3. Figure 2 and Figure 3 The screen 4 is installed in the screen frame 3 and can move in and out. The ejection mechanism 5 is installed between the screen frame 3 and the screen 4. After the window sash 2 closes the vent, the ejection mechanism 5 can eject the screen 4 so that the screen 4 can shake off the dust on it to the outside by shaking or hitting the screen frame 3. The ejection brake mechanism 6 can lock the ejection mechanism 5 to prevent the ejection mechanism 5 from ejecting the screen 4 before the window sash 2 closes the vent, causing the dust shaken off the screen 4 to fall into the room. It can be seen that when dust accumulates on the screen 4, there is no need to remove the screen 4. As long as the window sash 2 is closed, the dust on the screen 4 can be shaken off to the outside by shaking the screen 4, thereby preventing the dust on the screen 4 from being blown into the room and affecting the cleanliness of the room and the health of the residents, thereby improving the satisfaction of using the screen 4.

[0031] See also Figures 4 to 7 The ejection mechanism 5 of this embodiment includes a fixed bracket 51, an ejection spring 52, a pull rope 53, a winding shaft 54, a fixed pulley 55 and an ejection drive assembly 56. Figure 4 There are four ejection springs 52, which are respectively located at the four corners of the screen 4. One end of each ejection spring 52 is connected to the side of the screen 4 facing away from the outside, and the other end is connected to the screen frame 3. The ejection spring 52 is used to eject the screen 4. The fixed bracket 51 is installed on the screen frame 3, and the ejection drive assembly 56 is installed in the fixed bracket 51 and can drive the winding shaft 54 ​​to rotate. Figure 4 There are four fixed pulleys 55, which are divided into two groups. One group of fixed pulleys 55 is installed at the two top corners of the upper end of the screen frame 3, and this group of fixed pulleys 55 is set as the upper fixed pulley 551; the other group of fixed pulleys 55 is installed in the middle position of the screen frame 3, and this group of fixed pulleys 55 is set as the lower fixed pulley 552. Figure 5 and Figure 7The middle section of the pull cord 53 is fixed to the winding shaft 54. The left and right ends of the pull cord 53 extend to the left and right sides respectively, then pass around the upper fixed pulley 551 and extend downward, then pass around the lower fixed pulley 552, and finally connect vertically to the side of the screen 4 facing away from the outside. The ejection drive assembly 56 drives the winding shaft 54 ​​to rotate, and the winding shaft 54 ​​rewinds the pull cord 53. At this time, the length of the pull cord 53 gradually shortens, and tension is generated along the length of the pull cord 53. Under the guidance of the fixed pulley 55, the pull cord 53 exerts a pulling force on the screen 4 toward the room. The screen 4 overcomes the elastic force of the ejection spring 52 and moves toward the room. At this time, the ejection spring 52 accumulates energy. When the ejection motor 561 is turned off, the winding shaft 54 ​​quickly releases the pull rope 53, and the pull rope 53 no longer exerts tension on the screen 4. The screen 4 is ejected toward the outside under the ejection force of the ejection spring 52. After the screen 4 hits the screen frame 3, the ejection spring 52 is squeezed again under the reverse force of the screen frame 3 to move toward the inside of the room. Then, the ejection spring 52 drives the screen 4 to eject toward the outside again. This is repeated, so that the screen 4 hits the screen frame 3 multiple times, and the dust on it is shaken off to the outside. In addition, if the screen frame 3 is wide enough, the screen 4 does not need to hit the screen frame 3 to shake off the dust. That is, the screen 4 repeatedly moves inside and outside, causing the dust to fall to the outside under inertia.

[0032] Clearly, the ejection mechanism 5 of this embodiment, through the design of the ejection spring 52, the pull cord 53, the winding shaft 54, the fixed pulley 55, and the ejection drive assembly 56, can achieve dust removal from the screen 4, resulting in a simple overall structure. Furthermore, the ejection mechanism 5 is installed between the screen 4 and the screen frame 3, requiring only the screen 4 to be equipped with the ejection mechanism 5, without requiring any structural modifications to the aluminum alloy window.

[0033] In order to realize the automatic and periodic ejection of the screen window 4, see Figure 2 、 Figures 7 to 9 The ejection drive assembly 56 of this embodiment includes an ejection motor 561, a speed reducer 562, an ejection switch 563, a gear pair 564, a support slide 565, a switch block 566 and a photovoltaic panel 567 for powering the ejection motor 561. Figure 1 The photovoltaic panel 567 is a frame structure, which is installed on the side of the screen frame 3 facing outdoors. The photovoltaic panel 567 absorbs solar energy and converts it into electrical energy to power the ejection motor 561. The reducer 562 is provided with a power input shaft and a power output shaft. The motor shaft of the ejection motor 561 is fixedly connected to the power input shaft of the reducer 562. The power output shaft of the reducer 562 is connected to the end of the winding shaft 54 ​​away from the pull rope 53 through the gear pair 564. Figure 8The gear pair 564 includes a driving gear 5641 and a driven gear 5642 that mesh with each other. The driving gear 5641 is connected to the power output shaft of the reducer 562, and the driven gear 5642 is connected to the end of the winding shaft 54 ​​away from the pull rope 53. The ejection switch 563 is installed in the fixed bracket 51 and is electrically connected to the ejection motor 561 to control the opening and closing of the ejection motor 561. Figure 6 、 Figure 7 and Figure 8 A support rail 511 is provided on the inner side of the fixed bracket 51. A support slide 565 is slidably mounted on the support rail 511 and fixedly connected to the pull rope 53, so that it can move synchronously with the pull rope 53 during the process of winding or releasing the pull rope 53. Two switch blocks 566 are provided. These two switch blocks 566 are respectively mounted on the support slide 565 and are located on either side of the ejection switch 563. These two switch blocks 566 are used to activate and deactivate the ejection switch 563, respectively. When the ejection motor 561 drives the winding shaft 54 ​​to reel in the pull rope 53 through the reducer 562 and the gear pair 564, the supporting slide bar 565 moves with the pull rope 53, and one of the switch blocks 566 gradually approaches the ejection switch 563. When the switch block 566 toggles the button of the ejection switch 563, the ejection motor 561 is turned off. At this time, the winding shaft 54 ​​no longer reels in the pull rope 53. After the ejection spring 52 drives the screen window 4 to eject, the pull rope 53 is released and gradually extends. The supporting slide bar 565 moves in the opposite direction with the pull rope 53, and the other switch block 566 gradually approaches the ejection switch 563 until the length of the pull rope 53 returns to its initial length. At this time, the switch block 566 toggles the button of the ejection switch 563 in the opposite direction, and the ejection motor 561 starts and drives the winding shaft 54 ​​to rewind the pull rope 53 again. So repeatedly, thereby realize the periodic automatic ejection of screen window 4, ensure that the dust accumulated on screen window 4 can be shaken off periodically, avoid being blown indoor. In addition, utilize photovoltaic panel 567 to be ejection motor 561 power supply, also can realize the purpose of energy saving.

[0034] In order to speed up the release of the pull rope 53, Figure 8 As shown, the ejection drive assembly 56 of this embodiment further includes a one-way bearing 568, which is mounted between the driven gear 5642 and the winding shaft 54. After the ejection motor 561 is activated, the ejection motor 561 can drive the winding shaft 54 ​​to rotate via the one-way bearing 568. After the ejection motor 561 is deactivated, due to the design of the one-way bearing 568, the winding shaft 54 ​​can rotate under the tension of the pull cord 53 without having to overcome the damping of the ejection motor 561 and the speed reducer 562. Therefore, the pull cord 53 can be quickly released, increasing the ejection speed of the screen 4, thereby increasing the inertia of the dust and ensuring that the dust is shaken off more thoroughly.

[0035] In addition, in order to avoid the problem that the ejection motor 561 is insufficient in power due to weak sunlight, which causes the drive force of the winding shaft 54 ​​to be insufficient and the winding shaft 54 ​​to rotate. Figure 7 、 Figure 8 and Figure 9 As shown, the aluminum alloy window of this embodiment also includes a one-way brake mechanism 7 for preventing the winding spool 54 from rotating, and a brake unlocking mechanism 8 for unlocking the one-way brake mechanism 7. During the process of winding the drawstring 53, the one-way brake mechanism 7 allows the winding spool 54 to rotate only in the direction of the drawstring 53 and not in the opposite direction. This prevents the drawstring 53 from being released by the elastic force of the ejection spring 52, which would otherwise cause the window screen 4 to be ejected. When the switch block 566 contacts and pushes the ejection switch 563 to turn off the ejection motor 561, it indicates that the ejection spring 52 has fully accumulated its ejection force. Simultaneously, the brake unlocking mechanism 8 unlocks the one-way brake mechanism 7, which no longer resists the rotation of the winding spool 54. The drawstring 53 is released by the elastic force of the ejection spring 52, allowing the window screen 4 to be ejected. It can be seen from this that, with the cooperation of the one-way braking mechanism 7 and the brake unlocking mechanism 8 , the ejection cycle of the screen window 4 can be shortened, thereby preventing excessive dust from accumulating on the screen window 4 .

[0036] Specifically, if Figure 7 、 Figure 8 and Figure 9 As shown, the one-way brake mechanism 7 of this embodiment includes a first pawl support 71, a first ratchet 72, and a first pawl 73. The first ratchet 72 is mounted on the winding shaft 54 ​​and can rotate with the winding shaft 54. The first pawl support 71 is slidably mounted on the support rail 511 and is located on one side of the first ratchet 72. The first pawl 73 is rotatably mounted on the first pawl support 71 and inserted into the first ratchet 72 to prevent the winding shaft 54 ​​from rotating. The brake unlocking mechanism 8 includes two pawl shifting blocks 81 fixedly mounted on the support slide 565, one on each side of the first pawl support 71. As the spool 54 winds up the drawstring 53, one of the pawl shifters 81 moves toward the first pawl 73 along with the support slide 565. When the ejection spring 52 is fully charged with ejection force, the pawl shifter 81 pushes the first pawl 73 away from the first ratchet 72. The first pawl 73 releases the first ratchet 72, allowing the spool 54 to rotate in the opposite direction. The drawstring 53 is released and gradually straightened by the ejection force of the ejection spring 52. The support slide 565 moves in the opposite direction along with the drawstring 53, and the other pawl shifter 81 moves toward the first pawl 73, pushing the first pawl support 71 and the first pawl 73 back into place, allowing the first pawl 73 to re-enter the first ratchet 72, thus achieving one-way braking of the spool 54.

[0037] In order to prevent the first pawl support 71 from sliding due to the vibration of the screen window frame 3 during the pushing process, the first pawl 73 cannot lock the first ratchet wheel 72. Figure 8 、 Figure 9 and Figure 10 As shown, the one-way brake mechanism 7 of this embodiment further includes a pawl locking assembly 74 and an unlocking insert 75 for unlocking the pawl locking assembly 74. While the cable 53 is being wound on the spool 54, the pawl locking assembly 74 locks the first pawl support 71 to prevent the first pawl 73 from prematurely releasing the first ratchet 72. When the ejection spring 52 accumulates sufficient ejection force, the unlocking insert 75 unlocks the pawl locking assembly 74, allowing the first pawl support 71 to slide freely. This allows the pawl shifting block 81 to push the first pawl 73 away from the first ratchet 72.

[0038] Specifically, combined Figure 10 The pawl locking assembly 74 of this embodiment includes an unlocking slider 741, a locking pin 742, and an elastic return member 743. A locking groove 5111 is defined in the support rail 511 opposite the first pawl support 71. A sliding groove 711 is defined in the first pawl support 71. The unlocking slider 741 is slidably mounted within the sliding groove 711 of the first pawl support 71. The unlocking slider 741 is provided with a wedge-shaped slot 7411 that mates with the unlocking insert 75. The locking pin 742 is mounted on the unlocking slider 741 and can move with the unlocking slider 741. The elastic return member 743 is located within the sliding groove 711 of the first pawl support 71 and is used to reset the unlocking slider 741. The unlocking insert 75 is wedge-shaped and is mounted on one of the pawl shifting blocks 81 to unlock the first pawl support 71. When the winding spool 54 is rewinding the draw cord 53, the locking pin 742 is inserted into the locking groove 5111 of the supporting slide rail 511. At this time, the first pawl support 71 cannot slide due to the locking pin 742. At the same time, the unlocking plug 75 moves toward the first pawl support 71 along with one of the pawl shifting blocks 81. When the ejection spring 52 has accumulated sufficient ejection force, the unlocking plug 75 passes through the opening of the first pawl support 71 and gradually inserts into the wedge-shaped slot 7411. As the unlocking plug 75 extends, it overcomes the elastic force of the elastic return member 743 and pushes the unlocking slider 741 away from the locking groove 5111. The unlocking slider 741 drives the locking pin 742 out of the locking groove 5111. At this time, the locking pin 742 no longer locks the first pawl support 71, and the first pawl support 71 can drive the first pawl 73 away from the first ratchet wheel 72. When the first pawl support 71 is reset under the push of another pawl block 81, the unlocking block 75 is pulled out of the wedge-shaped slot 7411 under the drive of the connected pawl block 81, and the unlocking slider 741 drives the locking pin 742 to reset under the rebound force of the elastic reset member 743. The locking pin 742 is inserted into the locking groove 5111 again to lock the first pawl support 71.

[0039] In addition, in order to prevent the screen window 4 from starting the dust shaking function when the window sash 2 has not yet closed the vent. Figures 7 to 9 As shown, the aluminum alloy window of this embodiment further includes an ejection brake mechanism 6 for locking the ejection mechanism 5. Before the window sash 2 is closed, the ejection brake mechanism 6 can lock the winding shaft 54 ​​to prevent the winding shaft 54 ​​from rotating and releasing the pull rope 53. After the window sash 2 is closed, the ejection brake mechanism 6 unlocks the winding shaft 54. The winding shaft 54 ​​can release the pull rope 53 under the ejection force of the ejection spring 52, so that the screen 4 can shake off dust after the window sash 2 is closed. This design not only prevents the shaken dust from falling into the room, but also prevents people inside the room from being startled by the sound of the screen 4 suddenly hitting the screen frame 3.

[0040] Specifically, see Figures 2 to 4 、 Figures 7 to 9 The ejection brake mechanism 6 of this embodiment includes a second pawl support 61, a second ratchet, a second pawl 62, a solenoid valve 63, and a touch switch 64 for controlling the opening and closing of the solenoid valve 63. In order to reduce the number of ratchets used and reduce the space occupied by the ejection brake mechanism 6, the ejection brake mechanism 6 and the one-way brake mechanism 7 can use the same ratchet, that is, the first ratchet 72 is the second ratchet. Figure 7 The second pawl support 61 is slidably mounted on the fixed bracket 51 and is located on one side of the first ratchet 72. The second pawl 62 is rotatably mounted on the second pawl support 61 and inserted into the first ratchet 72. The cooperation between the first ratchet 72 and the second pawl 62 allows the winding shaft 54 ​​to rotate only in the direction of winding and cannot rotate in the opposite direction, thereby preventing the winding shaft 54 ​​from rotating. Figure 7 The valve core of the electromagnetic valve 63 is connected to the second pawl support 61. When the electromagnetic valve 63 is energized, the valve core can pull the second pawl 62 out of the first ratchet 72 to unlock the winding shaft 54. Figure 5 There are two touch switches 64, which are respectively installed on the left and right sides of the window frame 1, and each touch switch 64 corresponds to a window sash 2. And the two touch switches 64 are connected to the solenoid valve 63 through a power cord. When the two window sashes 2 are closed, the two window sashes 2 squeeze their corresponding touch switches 64 respectively to connect the solenoid valve 63 to the power supply. At this time, the solenoid valve 63 is energized, and the valve core of the solenoid valve 63 moves to the side away from the second pawl 62. The solenoid valve 63 drives the second pawl 62 to be pulled out from the first ratchet 72. At this time, the second pawl 62 releases the first ratchet 72, and the winding shaft 54 ​​can rotate in the opposite direction to release the pull rope 53, realizing the dust shaking function of the screen 4. When a window sash 2 is opened, as long as one of the touch switches 64 is no longer squeezed, the solenoid valve 63 will be de-energized, and the valve core of the solenoid valve 63 will be reset, thereby pushing the second pawl 62 to be inserted into the first ratchet 72 again, realizing the one-way locking of the winding shaft 54.

[0041] In order to prevent the power cord from being pulled and the power supply being cut off during the horizontal sliding process of the screen frame 3, so that the ejection mechanism 5 of the screen 4 cannot be started. Figure 3 、 Figure 4 and Figure 5 The ejection brake mechanism 6 of this embodiment further includes a conductive rail 65, a conductive slider 66 and a slider mounting seat 67. The conductive rail 65 is arranged along the length direction of the window sash frame 1. The conductive rail 65 is provided with two conductive slots 651. Each conductive slot 651 corresponds to a touch switch 64 and is connected in series with the corresponding touch switch 64 through a power line. The two touch switches 64 are also connected in series through a power line. Figure 6 Two conductive sliders 66 are provided. These two conductive sliders 66 are mounted on a slider mounting seat 67 and inserted into two conductive slide grooves 651, respectively. The screen frame 3 is slidably mounted on the conductive slide rail 65 via these two conductive sliders 66. One conductive slider 66 is connected to the positive pole of the solenoid valve 63 via a power cord, and the other conductive slider 66 is connected to the positive pole of the photovoltaic panel 567 via a power cord. The negative pole of the solenoid valve 63 is also connected to the negative pole of the photovoltaic panel 567 via a power cord. In other words, the photovoltaic panel 567, the solenoid valve 63, the conductive slider 66, the conductive slide rail 65, and the two touch switches 64 form an open circuit. When the touch switch 64 is pressed and turned on, this open circuit forms a closed loop, and the solenoid valve 63 is powered, driving the second pawl 62 to pull out the first ratchet 72.

[0042] It should also be noted that this embodiment can also be equipped with a humidity sensor, a human infrared sensor, and a photoresistor. The humidity sensor can detect the outdoor humidity and determine whether to deploy the screen. The human infrared sensor can determine whether someone is passing under the window. If no one is passing under the window, the screen can be activated; if someone is passing under the window, the screen will not be activated. The photoresistor can determine whether it is daytime. If it is daytime, the screen can be activated; otherwise, it will not be activated.

[0043] The working process of the present invention is further described below to further demonstrate the working principle and advantages of the present invention: Before the ejection mechanism 5 is activated, the first pawl 73 and the second pawl 62 are both inserted into the first ratchet 72, locking the winding shaft 54 ​​in one direction so that the winding shaft 54 ​​can only rotate in the direction of rewinding the pull rope 53. The ejection drive assembly 56 drives the winding shaft 54 ​​to rotate, and the winding shaft 54 ​​rewinds the pull rope 53. At this time, the length of the pull rope 53 gradually shortens, and tension is generated along the length of the pull rope 53. Guided by the fixed pulley 55, the pull rope 53 exerts a pulling force on the screen 4 toward the room. The screen 4 overcomes the elastic force of the ejection spring 52 and moves toward the room. At this time, the ejection spring 52 is energized. At the same time, the support slide 565 moves along with the pull rope 53, and the pawl block 81 and the switch block 566 also move along with the support slide 565. The pawl block 81, equipped with the unlocking plug 75, gradually approaches the first pawl 73. The switch block 566, used to deactivate the ejection switch 563, gradually approaches the ejection switch 563. Before the switch block 566 toggles the button of the ejection switch 563, the unlocking plug 75 passes through the opening of the first pawl support 71 and gradually inserts into the wedge-shaped slot 7411. As the unlocking plug 75 extends, it overcomes the elastic force of the elastic return member 743 and pushes the unlocking slider 741 away from the lock slot 5111. The unlocking slider 741 drives the locking pin 742 out of the lock slot 5111, at which point the locking pin 742 no longer locks the first pawl support 71. The switch block 566 contacts and pushes the ejection switch 563, turning off the ejection motor 561. Since the winding shaft 54 ​​is also braked by the second pawl 62, the winding shaft 54 ​​cannot rotate. When the two window sashes 2 are closed, the two window sashes 2 respectively squeeze the corresponding touch switches 64, and the touch switches 64 are turned on. The photovoltaic panel 567, the solenoid valve 63, the conductive slider 66, the conductive slide rail 65 and the two touch switches 64 form a closed circuit. The solenoid valve 63 is powered on, and the valve core of the solenoid valve 63 moves to the side away from the second pawl 62. The solenoid valve 63 drives the second pawl 62 to be pulled out from the first ratchet 72. At this time, the second pawl 62 releases the first ratchet 72, and the winding shaft 54 ​​can rotate in the opposite direction. The winding shaft 54 ​​quickly releases the pull cord 53, which no longer exerts tension on the screen 4. The screen 4 is ejected toward the outside under the ejection force of the ejection spring 52. After the screen 4 hits the screen frame 3, the ejection spring 52 is squeezed again under the reverse force of the screen frame 3 to move toward the inside. The ejection spring 52 then drives the screen 4 toward the outside again. This process is repeated, causing the screen 4 to hit the screen frame 3 multiple times, shaking off the dust on it to the outside. At the same time, the pull cord 53 is released and gradually extends. The support slide 565 moves in the opposite direction with the pull cord 53. The switch block 566 for turning on the ejection switch 563 gradually approaches the ejection switch 563 until the length of the pull cord 53 returns to its initial length. At this time, the switch block 566 reverses the ejection switch 563 button, and the ejection motor 561 starts and drives the winding shaft 54 ​​to rewind the pull cord 53.This is repeated to achieve periodic automatic ejection of the screen window 4, ensuring that the dust accumulated on the screen window 4 can be shaken off periodically to avoid being blown into the room.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. Silent energy-saving aluminum alloy window, characterized by: The utility model comprises a window sash frame, a screen frame, a screen window and an ejection mechanism. The screen window frame is slidably installed in the window sash frame and can be translated to the vent. The screen window is installed in the screen window frame and can be moved inward and outward. The ejection mechanism is configured to eject the screen window after the window sash is closed, so that the screen window shakes off the dust on it to the outside.

2. The silent and energy-saving aluminum alloy window according to claim 1, characterized in that: The ejection mechanism includes an ejection spring, a pull rope, a winding shaft and an ejection drive assembly. The ejection spring is connected to the screen window for ejecting the screen window; the two ends of the pull rope are respectively connected to the window frames on both sides of the screen window; the winding shaft is used to reel in the pull rope; the ejection drive assembly is connected to the winding shaft; the ejection drive assembly drives the winding shaft to reel in the pull rope, and the pull rope overcomes the elastic force of the ejection spring to pull the screen window toward the room. When the screen window moves into place, the winding shaft releases the pull rope, so that the screen window is repeatedly ejected under the stored energy of the ejection spring.

3. The silent and energy-saving aluminum alloy window according to claim 2, characterized in that: The ejection drive assembly includes an ejection motor and a one-way bearing. The motor shaft of the ejection motor is connected to the winding shaft through a one-way bearing so that the load of the ejection motor can be separated when the winding shaft releases the pull rope.

4. The silent and energy-saving aluminum alloy window according to claim 3, characterized in that: The ejection drive assembly also includes a photovoltaic panel for powering the ejection motor, and the aluminum alloy window also includes a one-way braking mechanism and a brake unlocking mechanism; the one-way braking mechanism is configured to prevent the winding shaft from rotating during the process of winding the pull rope; the brake unlocking mechanism is configured to unlock the one-way braking mechanism before the winding shaft releases the pull rope, so that the winding shaft releases the pull rope.

5. The silent and energy-saving aluminum alloy window according to claim 4, characterized in that: and a first pawl block which is mounted on the first ratchet wheel and is adapted to move the first pawl toward the first pawl support when the pull rope is released.

6. The silent and energy-saving aluminum alloy window according to claim 5, characterized in that: The one-way braking mechanism further includes a pawl locking assembly for locking the first pawl and an unlocking plug for unlocking the pawl locking assembly. Before the ejection spring is fully charged with ejection force, the pawl locking assembly locks the first pawl support to prevent the first pawl from releasing the first ratchet wheel prematurely. When the ejection spring is fully charged with ejection force, the unlocking plug unlocks the pawl locking assembly, so that the first pawl support can drive the first pawl away from the first ratchet wheel.

7. The silent and energy-saving aluminum alloy window according to claim 6, characterized in that: The pawl locking assembly includes an unlocking slider, a locking pin and an elastic reset member; a sliding groove is opened in the first pawl support, the unlocking slider is slidably installed in the sliding groove of the first pawl support, and the unlocking slider is provided with a wedge-shaped slot that matches the unlocking plug block; the locking pin is installed on the unlocking slider; a locking groove is provided at a position opposite to the sliding groove, and the locking pin can be inserted in the locking groove to lock the first pawl support; the elastic reset member is installed in the sliding groove of the first pawl support for resetting the unlocking slider; the unlocking plug block is installed on one of the pawl shift blocks; during the process of the winding shaft winding the rope, the unlocking plug block moves toward the side of the first pawl support with one of the pawl shift blocks, and when the ejection spring is fully charged with ejection force, the unlocking plug block is inserted in the wedge-shaped slot and pushes the unlocking slider backward to pull the locking pin out of the lock groove.

8. The silent and energy-saving aluminum alloy window according to claim 2, characterized in that: It also includes a catapult brake mechanism for locking the catapult mechanism. Before the window sash is closed, the catapult brake mechanism can lock the winding shaft to prevent the winding shaft from rotating to release the pull rope; after the window sash is closed, the catapult brake mechanism unlocks the winding shaft, and the winding shaft releases the pull rope, so that the screen window shakes off dust after the window sash is closed.

9. The silent and energy-saving aluminum alloy window according to claim 8, characterized in that: The ejection brake mechanism includes a second ratchet, a second pawl, a solenoid valve and a touch switch. The second ratchet is mounted on the winding shaft, the solenoid valve is arranged on one side of the second ratchet, the second pawl is installed on the valve core of the solenoid valve and can rotate, and the second pawl is inserted into the second ratchet to prevent the winding shaft from releasing the pull rope; the touch switch is set in the window sash frame to control the opening and closing of the solenoid valve; when the window sash is closed, the window sash activates the touch switch, and the touch switch controls the solenoid valve to energize, so that the solenoid valve drives the second pawl to be pulled out of the second ratchet.

10. The silent and energy-saving aluminum alloy window according to claim 9, characterized in that: The ejection brake mechanism also includes a conductive slide rail and a conductive slider. The conductive slide rail is arranged along the length direction of the window sash frame. The screen frame is slidably connected to the conductive slide rail through the conductive slider. The conductive slider, conductive slide rail, touch switch, solenoid valve and power supply are connected in series to form an open circuit. When the touch switch is turned on, the open circuit forms a closed loop to power on the solenoid valve.

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