Electric casement window

Abstract

The invention belongs to the field of casement windows, and particularly relates to an electric casement window which comprises a window frame and a window sash, and the window sash is installed on the side face of the window frame through a hinge mechanism. The electric casement window further comprises a driving motor, a transmission mechanism, a swing arm and a sliding rod, the driving motor is installed on the window frame, the transmission mechanism is connected with an output shaft of the driving motor and one end of the swing arm, and the swing arm is of a hollow structure. The first screw rotates to drive the nut assembly to move, so that the support is pushed to rotate around the hinge point of the support and the window sash, then the window sash is driven to complete the casement opening and closing action around the axis of the hinge mechanism, and by means of the structure, the automatic opening and closing function of the casement window is achieved, so that a user does not need to manually open and close the window sash; and meanwhile, the transmission machine can rotate reversely, and the window can be manually opened and closed during power failure.

Description

Technical Field

[0001] This invention relates to the field of casement windows, specifically an electrically operated casement window. Background Technology

[0002] Currently, casement windows are one of the most common types of windows used in houses. Casement windows mainly consist of four parts: window frame, window sash, hinge mechanism, and lock. The window sash is installed on the window frame through the hinge mechanism, and the window sash can be opened and closed by rotating around the axis of the hinge mechanism. The lock is used to reliably lock the window sash to the window frame when the window sash is closed.

[0003] Existing electric casement windows on the market use low-resistance hinges or hinges, and use gears to rotate the swing arm to drive the window to rotate open and close. The drawback of this is that the gear gap is amplified by the window sash, the hinge resistance is low, and the window will swing with the wind when it is open, which is inconvenient to use. Therefore, an electric casement window is proposed to address the above problems. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes an electric casement window.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an electric casement window, including a window frame and a window sash, wherein the window sash is installed on the side of the window frame via a hinge mechanism; the electric casement window further includes a drive motor, a transmission mechanism, a swing arm, and a slide rod, wherein the drive motor is installed on the window frame, the transmission mechanism connects the output shaft of the drive motor to one end of the swing arm, the swing arm has a hollow structure, the slide rod extends through the end of the swing arm into the interior of the swing arm and is slidably connected to the swing arm, a support is fixedly connected to the end of the slide rod, the support is hinged to the window sash, a first screw is rotatably connected to the middle of the swing arm, a nut assembly is threadedly connected to the first screw, and the end of the slide rod away from the support is fixedly connected to the nut assembly.

[0006] Preferably, the transmission mechanism includes a first base, a second base, a rotating shaft, a first gear, and a second gear. The first base is fixed to the window frame, the first gear is fixed to the output shaft of the drive motor, the rotating shaft is rotatably connected to the middle of the first base, the second gear is fixed to the rotating shaft, the first gear and the second gear mesh with each other, the second base is rotatably connected to the rotating shaft, the end of the swing arm is fixed to the second base, a third gear is fixed to the rotating shaft, and a fourth gear is fixed to the end of the first screw. The third gear and the fourth gear mesh with each other.

[0007] Preferably, the swing arm includes an arm body, a first end cap, and a second end cap. The first end cap and the second end cap are bolted to both ends of the arm body. The first end cap is bolted to a second base body. The first screw passes through the first end cap and is rotatably connected to it. A through hole is provided on the second end cap at a position corresponding to the slide rod. The slide rod and the through hole are slidably connected.

[0008] Preferably, a manual locking assembly is installed on the window sash, which is used for mechanical locking of the window sash in the closed state. The manual locking assembly includes a window lock, two locking rods and a locking pin. The window lock is fixed to the side of the window sash, the two locking rods are slidably connected to the window sash, the locking rods are connected to the window lock, and the locking pin is fixed to the end of the locking rod. Two locking arms are installed inside the window frame, and the ends of the locking arms are provided with locking grooves. When the window sash is closed, the locking pin slides under the drive of the manual lock and inserts into the locking groove.

[0009] Preferably, an electric lock assembly is installed on the window frame. The electric lock assembly includes a guide rail, two connecting rods, two racks, a linkage gear, and a drive unit. The guide rail is fixed to the inner wall of the window frame. The two locking arms are slidably connected to both ends of the guide rail. A housing is fixedly connected to the middle of the guide rail. The connecting rods and locking arms are connected by bolts. The two racks are slidably connected inside the housing. The racks are fixed to the connecting rods. The linkage gear is rotatably connected inside the housing. The linkage gear meshes with the two racks respectively. The drive unit is used to drive the two connecting rods to move closer or further apart.

[0010] Preferably, the drive unit includes a fixed base, a lock motor, a second screw, and a nut seat. The fixed base is fixed inside the housing, the lock motor is fixed on the fixed base, the second screw is fixed to the output shaft of the lock motor, the second screw passes through the nut seat and is threadedly connected to it, and the nut seat is fixed to one of the two connecting rods.

[0011] Preferably, a controller is fixedly connected inside the housing, and the controller and the drive motor are electrically connected to the lock motor.

[0012] Preferably, a bearing is installed at the rotatable connection between the first screw and the first end cover.

[0013] The advantages of this invention are:

[0014] 1. This invention, by setting up a drive motor, a swing arm, a slide rod, a screw, a nut assembly, and a transmission mechanism, allows the drive motor to be started during use. The drive motor, via the transmission mechanism, drives the first screw to rotate. The rotation of the first screw drives the nut assembly to move. The axial displacement of the nut assembly causes the slide rod to move linearly along the inner cavity of the swing arm, thereby pushing the support to rotate around its hinge point with the window sash. This, in turn, causes the window sash to complete the casement opening and closing action around the axis of the hinge mechanism. Based on the above structure, the automatic opening and closing function of the casement window is achieved, eliminating the need for manual opening and closing of the window sash by the user. This simplifies user operation. The drive motor is connected to a controller, which controls the start, stop, and forward / reverse rotation of the drive motor to facilitate the input of control commands and enable linkage with the whole-house smart system, achieving remote control and scene linkage.

[0015] 2. This invention, by setting up an electric lock assembly, allows the lock motor to drive the second screw to rotate during use. The nut seat then moves linearly along the axial direction of the second screw, thereby causing the connecting rod fixed to it to translate. This connecting rod, through a gear meshing transmission, drives another connecting rod to translate synchronously in the opposite direction, causing the two lock arms to move closer together or further apart along the guide rail. This achieves the insertion or disengagement of the lock pin from the lock groove, completing the electric locking or unlocking action. This enables electric locking of the window sash, improving the window's intelligence, reducing manual operation, and enhancing automation and ease of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the swing arm structure of the present invention;

[0021] Figure 5 This is a schematic cross-sectional view of the arm body of the present invention;

[0022] Figure 6 This is a schematic diagram of the guide rail structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the housing of the present invention.

[0024] In the diagram: 11. Window frame; 12. Window sash; 13. Hinge mechanism; 14. Drive motor; 15. Slide rod; 16. First screw; 17. Nut assembly; 18. Support; 21. First seat; 22. Second seat; 23. First gear; 24. Second gear; 25. Third gear; 26. Fourth gear; 27. Rotating shaft; 31. Arm; 32. First end cap; 33. Second end cap; 41. Handle-type lock; 42. Locking rod; 43. Locking pin; 44. Locking arm; 45. Lock groove; 51. Guide rail; 52. Connecting rod; 53. Rack; 54. Linking gear; 61. Housing; 62. Fixing base; 63. Lock motor; 64. Second screw; 65. Nut seat; 7. Controller. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Specific implementation examples are given below.

[0027] Please see Figure 1-7As shown, an electrically operated casement window includes a window frame 11 and a window sash 12. The window sash 12 is mounted on the side of the window frame 11 via a hinge mechanism 13. The electrically operated casement window also includes a drive motor 14, a transmission mechanism, a swing arm, and a slide rod 15. The drive motor 14 is mounted on the window frame 11. The transmission mechanism connects the output shaft of the drive motor 14 to one end of the swing arm. The swing arm has a hollow structure. The slide rod 15 extends through the end of the swing arm into the interior of the swing arm and is slidably connected to the swing arm. A support 18 is fixedly connected to the end of the slide rod 15. The support 18 is hinged to the window sash 12. A first screw 16 is rotatably connected to the middle of the swing arm. A nut assembly 17 is threaded onto the first screw 16. The end of the slide rod 15 away from the support 18 is fixedly connected to the nut assembly 17. The transmission mechanism includes a first base 21, a second base 22, a rotating shaft 27, a first gear 23, and a second gear 24. The first base 21 is fixedly connected to the window frame 11. 1. The first gear 23 is fixedly connected to the output shaft of the drive motor 14. The rotating shaft 27 is rotatably connected to the middle of the first base 21. The second gear 24 is fixedly connected to the rotating shaft 27. The first gear 23 and the second gear 24 mesh with each other. The second base 22 is rotatably connected to the rotating shaft 27. The end of the swing arm is fixedly connected to the second base 22. A third gear 25 is fixedly connected to the rotating shaft 27. A fourth gear 26 is fixedly connected to the end of the first screw 16. The third gear 25 and the fourth gear 26 mesh with each other. The swing arm includes an arm body 31, a first end cover 32 and a second end cover 33. The first end cover 32 and the second end cover 33 are bolted to both ends of the arm body 31. The first end cover 32 is bolted to the second base 22. The first screw 16 passes through the first end cover 32 and is rotatably connected to it. A through hole is opened on the second end cover 33 at a position corresponding to the slide rod 15. The slide rod 15 and the through hole are slidably connected.

[0028] In use, the drive motor 14 is started, which drives the first screw 16 to rotate via the transmission mechanism. The rotation of the first screw 16 drives the nut assembly 17 to move. The axial displacement of the nut assembly 17 causes the slide rod 15 to move linearly along the inner cavity of the swing arm, thereby pushing the support 18 to rotate around its hinge point with the window sash 12. This, in turn, drives the window sash 12 to complete the casement opening and closing action around the axis of the hinge mechanism 13. Relying on the above structure, the automatic opening and closing function of the casement window is realized, so that the user does not need to manually open and close the window sash 12, which makes it convenient for the user. The drive motor 14 is hidden inside the window frame 11, and the swing arm is installed above the window sash 12, which can achieve the visual effect of hiding the drive motor 14, the transmission mechanism and the swing arm assembly. The drive motor 14 is connected to the controller 7, which controls the opening, closing and forward and reverse rotation of the drive motor 14. The controller 7 can input control commands through the control panel, and can also be connected to the whole-house smart system through wired or wireless means to realize remote control and scene linkage.

[0029] When the swing arm moves, the output shaft power of the drive motor 14 is transmitted to the rotating shaft 27 via the meshing of the first gear 23 and the second gear 24. The third gear 25 and the fourth gear 26 on the rotating shaft 27 mesh to drive the first screw 16 to rotate, thereby completing the power sensor. This application uses gear transmission to drive the first screw 16 to move, which improves the stability of the transmission. Furthermore, the extension and retraction of the swing arm is converted from the rotational motion of the first screw 16 into the axial linear motion of the nut assembly 17, amplifying the torque and enabling the slide rod 15 to obtain sufficient thrust to overcome the opening and closing resistance of the window sash 12, thereby ensuring that the slide rod 15 is within the swing arm cavity. The movement is smooth and without jamming, improving structural stability, extending service life, and reducing maintenance frequency. Furthermore, the aforementioned swing arm mechanism has forces in two directions to open and close the window. Relying on the push-pull force provided by the first screw 16 and the torque driven by the motor gear structure, the two forces can be freely distributed, improving stability and service life. At the same time, the entire transmission mechanism can be reversed, and the lock can be manually and electrically unlocked and locked in a staggered manner. This allows users to manually open and close the window and manually unlock the lock after a power outage. The reverse rotation of the transmission mechanism also has a certain self-locking force to ensure that the window can withstand a certain amount of wind pressure, so that the window will not close automatically in windy conditions.

[0030] Furthermore, such as Figure 1-7 As shown, a manual locking assembly is installed on the window sash 12. The manual locking assembly is used for mechanical locking of the window sash 12 in the closed state. The manual locking assembly includes a window lock 41, two locking rods 42, and a locking pin 43. The window lock 41 is fixed to the side of the window sash 12. The two locking rods 42 are slidably connected to the window sash 12 and connected to the window lock 41. The locking pin 43 is fixed to the end of the locking rod 42. Two locking arms 44 are installed inside the window frame 11. The end of the locking arm 44 is provided with a locking groove 45. When the window sash 12 is in the closed state, the locking pin 43 slides under the drive of the manual lock and inserts into the locking groove 45. A controller 7 is fixed inside the housing 61. The controller 7 and the drive motor 14 are electrically connected to the lock motor 63.

[0031] In use, the manual lock assembly adopts a conventional structure known to those skilled in the art. It rotates the handle on the window lock 41 and moves the lock rod 42 synchronously through the corresponding linkage mechanism, thereby driving the lock pin 43 to move into or out of the lock groove 45, thus completing the locking and unlocking action of the window sash 12.

[0032] Furthermore, such as Figure 1-7As shown, an electric lock assembly is installed on the window frame 11. The electric lock assembly includes a guide rail 51, two connecting rods 52, two racks 53, a linkage gear 54, and a drive unit. The guide rail 51 is fixed to the inner wall of the window frame 11. The two locking arms 44 are slidably connected to the two ends of the guide rail 51. A housing 61 is fixedly connected to the middle of the guide rail 51. The connecting rods 52 and the locking arms 44 are connected by bolts. The two racks 53 are slidably connected inside the housing 61. The racks 53 are fixedly connected to the connecting rods 52. The linkage gear 54 is rotatably connected to the housing 61. Inside the housing 61, the connecting gear 54 meshes with two racks 53 respectively. The drive unit is used to drive the two connecting rods 52 to move closer or further apart. The drive unit includes a fixed base 62, a lock motor 63, a second screw 64, and a nut seat 65. The fixed base 62 is fixed inside the housing 61. The lock motor 63 is fixed on the fixed base 62. The second screw 64 is fixed to the output shaft of the lock motor 63. The second screw 64 passes through the nut seat 65 and is threaded to it. The nut seat 65 is fixed to one of the two connecting rods 52.

[0033] When the electric lock assembly is working, the manual lock assembly is not operated. The locking pin 43 is reset and remains in the preset initial position. The electric lock assembly is used to electrically control the locking and unlocking of the window sash 12. The lock motor 63 drives the second screw 64 to rotate, and the nut seat 65 moves linearly along the axis of the second screw 64, thereby driving the connecting rod 52 fixed to it to translate. The connecting rod 52 drives the other connecting rod 52 to translate synchronously in the opposite direction through the meshing transmission of the linkage gear 54, so that the two locking arms 44 move closer to each other or separate away from each other along the guide rail 51, realizing the insertion or disengagement of the locking pin 43 and the locking groove 45, completing the electric locking or unlocking action, thereby realizing the electric locking of the window sash 12, improving the intelligence of the window, reducing the need for manual operation, and improving the degree of automation and ease of use.

[0034] Furthermore, such as Figure 1-7 As shown, a bearing is installed at the rotatable connection between the first screw 16 and the first end cover 32. In use, the bearing supports the radial load of the first screw 16 and ensures its rotational coaxiality, reduces frictional resistance and wear during transmission, and ensures the motion accuracy and long-term operational stability of the slide bar 15-nut drive mechanism.

[0035] Working principle: During use, the drive motor 14 is started, which drives the first screw 16 to rotate via the transmission mechanism. The rotation of the first screw 16 drives the nut assembly 17 to move. The axial displacement of the nut assembly 17 causes the slide rod 15 to move linearly along the inner cavity of the swing arm, thereby pushing the support 18 to rotate around its hinge point with the window sash 12. This, in turn, drives the window sash 12 to complete the casement opening and closing action around the axis of the hinge mechanism 13. Relying on the above structure, the automatic opening and closing function of the casement window is realized, so that the user does not need to manually open and close the window sash 12. This makes it convenient for the user. Furthermore, the drive motor 14 is hidden inside the window frame 11. The swing arm is installed above the window sash 12, which can visually conceal the drive motor 14, transmission mechanism, and swing arm assembly. The drive motor 14 is connected to the controller 7, which controls the start, stop, forward and reverse rotation of the drive motor 14. The controller 7 can input control commands through the control panel and can also be connected to the whole-house smart system via wired or wireless means to achieve remote control and scene linkage. The bearing is used to support the radial load of the first screw 16 and ensure its rotational coaxiality, reduce frictional resistance and wear during transmission, and ensure the motion accuracy and long-term operational stability of the slide rod 15-nut drive mechanism.

[0036] When the swing arm moves, the output shaft power of the drive motor 14 is transmitted to the rotating shaft 27 via the meshing of the first gear 23 and the second gear 24. The third gear 25 and the fourth gear 26 on the rotating shaft 27 mesh to drive the first screw 16 to rotate, thereby completing the power sensor. This application uses gear transmission to drive the first screw 16 to move, which improves the stability of the transmission. The extension and retraction of the swing arm is converted from the rotational motion of the first screw 16 to the axial linear motion of the nut assembly 17, which amplifies the torque and enables the slide rod 15 to obtain sufficient thrust to overcome the opening and closing resistance of the window sash 12. This ensures that the slide rod 15 moves smoothly and without jamming in the inner cavity of the swing arm, improves the stability of the structure, extends the service life, and reduces the maintenance frequency.

[0037] In use, the manual locking assembly adopts a conventional structure well-known to those skilled in the art. It rotates the handle on the window lock 41, and through a corresponding linkage mechanism, causes the locking rod 42 to move synchronously, thereby moving the locking pin 43 to insert or retract into the locking groove 45, thus completing the locking and unlocking actions of the window sash 12. The electric locking assembly is used to electrically control the locking and unlocking actions of the window sash 12. When the electric locking assembly is working, without operating the manual locking assembly, the locking pin 43 must be reset and remain in the preset initial position, while the lock motor 63 drives the second screw... When rod 64 rotates, nut seat 65 moves linearly along the axis of second screw 64, thereby driving the connecting rod 52 fixed to it to translate. The connecting rod 52 drives another connecting rod 52 to translate synchronously in the opposite direction through the meshing transmission of the linkage gear 54, so that the two locking arms 44 move closer to each other or separate away from each other along the guide rail 51, realizing the insertion or disengagement of locking pin 43 and locking groove 45, completing the electric locking or unlocking action, thereby realizing the electric locking of window sash 12, improving the intelligence of the window, reducing the need for manual operation, and improving the degree of automation and ease of use.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An electrically operated casement window, comprising a window frame (11) and a window sash (12), wherein the window sash (12) is mounted on the side of the window frame (11) via a hinge mechanism (13); characterized in that: The electric casement window also includes a drive motor (14), a transmission mechanism, a swing arm, and a slide rod (15). The drive motor (14) is mounted on the window frame (11). The transmission mechanism connects the output shaft of the drive motor (14) to one end of the swing arm. The swing arm is a hollow structure. The slide rod (15) extends through the end of the swing arm into the interior of the swing arm and is slidably connected to the swing arm. A support (18) is fixedly connected to the end of the slide rod (15). The support (18) and the window sash (12) are hinged together. A first screw (16) is rotatably connected to the middle of the swing arm. A nut assembly (17) is threaded onto the first screw (16). The end of the slide rod (15) away from the support (18) is fixedly connected to the nut assembly (17).

2. The electrically operated casement window according to claim 1, characterized in that: The transmission mechanism includes a first seat (21), a second seat (22), a rotating shaft (27), a first gear (23), and a second gear (24). The first seat (21) is fixed to the window frame (11), the first gear (23) is fixed to the output shaft of the drive motor (14), the rotating shaft (27) is rotatably connected to the middle of the first seat (21), the second gear (24) is fixed to the rotating shaft (27), the first gear (23) and the second gear (24) mesh with each other, the second seat (22) is rotatably connected to the rotating shaft (27), the end of the swing arm is fixed to the second seat (22), a third gear (25) is fixed to the rotating shaft (27), and a fourth gear (26) is fixed to the end of the first screw (16). The third gear (25) and the fourth gear (26) mesh with each other.

3. The electrically operated casement window according to claim 2, characterized in that: The swing arm includes an arm body (31), a first end cap (32) and a second end cap (33). The first end cap (32) and the second end cap (33) are bolted to both ends of the arm body (31). The first end cap (32) is bolted to the second seat (22). The first screw (16) passes through the first end cap (32) and is rotatably connected to it. A through hole is provided on the second end cap (33) at a position corresponding to the slide rod (15). The slide rod (15) and the through hole are slidably connected.

4. The electrically operated casement window according to claim 1, characterized in that: A manual locking assembly is installed on the window sash (12), which is used for mechanical locking of the window sash (12) in the closed state. The manual locking assembly includes a window lock (41), two locking rods (42) and a locking pin (43). The window lock (41) is fixed to the side of the window sash (12). The two locking rods (42) are slidably connected to the window sash (12). The locking rods (42) are connected to the window lock (41). The locking pin (43) is fixed to the end of the locking rods (42). Two locking arms (44) are installed in the window frame (11). The end of the locking arm (44) is provided with a locking groove (45). When the window sash (12) is closed, the locking pin (43) slides under the drive of the manual lock and inserts into the locking groove (45).

5. The electrically operated casement window according to claim 4, characterized in that: An electric lock assembly is installed on the window frame (11). The electric lock assembly includes a guide rail (51), two connecting rods (52), two racks (53), a linkage gear (54), and a drive unit. The guide rail (51) is fixed to the inner wall of the window frame (11). The two lock arms (44) are slidably connected to the two ends of the guide rail (51). A housing (61) is fixed to the middle of the guide rail (51). The connecting rods (52) and the lock arms (44) are connected by bolts. The two racks (53) are slidably connected inside the housing (61). The racks (53) and the connecting rods (52) are fixedly connected. The linkage gear (54) is rotatably connected inside the housing (61). The linkage gear (54) meshes with the two racks (53) respectively. The drive unit is used to drive the two connecting rods (52) to move closer or further apart.

6. The electrically operated casement window according to claim 5, characterized in that: The drive unit includes a fixed base (62), a lock motor (63), a second screw (64), and a nut seat (65). The fixed base (62) is fixed inside the housing (61). The lock motor (63) is fixed on the fixed base (62). The second screw (64) is fixed to the output shaft of the lock motor (63). The second screw (64) passes through the nut seat (65) and is threaded to it. The nut seat (65) is fixed to one of the two connecting rods (52).

7. The electrically operated casement window according to claim 5, characterized in that: A controller (7) is fixedly connected inside the housing (61), and the controller (7) and the drive motor (14) are electrically connected to the lock motor (63).

8. The electrically operated casement window according to claim 3, characterized in that: A bearing is installed at the rotatable connection between the first screw (16) and the first end cap (32).

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