Window opening system for performing multi-machine synchronous control on heavy window sash

Abstract

The utility model relates to the technical field of window openers, in particular to a window opening system for performing multi-machine synchronous control on heavy window sashes, which comprises a control module and a plurality of window openers, the plurality of window openers are respectively and electrically connected with the control module, so that the control module can perform synchronous control on the plurality of window openers; the plurality of window openers are mounted on the same heavy window sash and open and close the heavy window sash at the same time; the multiple window openers are each provided with a stroke metering device, the stroke metering devices are used for metering the stroke length of the opening and closing strokes of the window openers, and the stroke metering devices are electrically connected with the control module. In conclusion, the window openers can be respectively arranged on the two side frames of the large-sized and heavy-duty window sashes, so that the two window openers can synchronously run, the opening force and the opening angle of the two side frames of the window sashes can be uniformly controlled, and the deformation of the heavy-duty window sashes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of window openers, in particular to a window opening system for performing multi-machine synchronous control on heavy window sashes. Background Art

[0002] The machine used to open and close window sashes is called a "window actuator" or "window opener." It's a high-tech product in the domestic building door, window, and curtain wall industries. Its main applications include: windows located high up that are difficult to open and close manually; windows with special functions such as fire smoke exhaust, fire linkage, or ventilation requirements; and windows in intelligent control scenarios such as building automation and smart home control. Currently, existing window actuators are divided into manual, pneumatic, and electric. Electric actuators include screw openers, crank arm openers, and chain openers. Screw openers use a motor to drive a screw, which is connected to a rod body, driving the rod to reciprocate and extend. The other end of the rod body is connected to the window frame, and the extension and retraction of the rod body drives the window sash to open and close. The rod body and the frame are connected by a support head. The support head is usually fixed to the frame. A pivot structure rotates the support head to the window sash joint of the rod body, allowing the window sash to maintain normal connection with the window opener even after opening to a certain angle.

[0003] At present, the application of window openers is becoming more and more common. During the application process, some problems that are prone to occur with traditional window openers have also been discovered. For example, for some large and heavy window sashes, ordinary window openers are more laborious to open them, and it is also easy to cause opening difficulties, and the closing angle does not match, resulting in loose closing.

[0004] For example, the Chinese patent document with publication number CN118049111A discloses a double-chain window opener, comprising a window opener body, two chain assemblies and two window sash connecting blocks; the window opener body is installed on the lower frame of the window frame, and the two window sash connecting blocks are symmetrically installed on the lower frame of the window sash; one end of each chain assembly is arranged inside the window opener body, and the other end extends from the corresponding chain outlet on the window opener body to the outside of the window opener body and is fixedly connected to the corresponding window sash connecting block; chain cavities are symmetrically provided in the window opener body; by simultaneously controlling the chains of the corresponding chain assemblies to move in the corresponding chain cavities, the length of the chain extending to the outside of the window opener body is synchronously adjusted, and then the corresponding window sash connecting block is pushed to move by the chain to drive the movement of the window sash, thereby realizing the opening and closing of the window.

[0005] As disclosed in the above-mentioned patent document, the technical solution mainly uses double chains to open and close heavy window sashes. However, the double chains cannot be used separately and cannot be installed in the two side frames of the window sash respectively, which limits its scope of application.

[0006] However, if the window openers are installed on both side frames of the heavy window sash respectively, it is easy for the two window openers to not operate synchronously, resulting in inconsistent opening force and opening angle on both side frames of the window sash, which can easily lead to deformation of the heavy window sash. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0008] The utility model provides a window opening system for multi-machine synchronous control of heavy-duty window sashes, comprising a control module and a plurality of window openers, wherein the plurality of window openers are electrically connected to the control module respectively, so that the control module can synchronously control the plurality of window openers; the plurality of window openers are all installed on the same heavy-duty window sash, and simultaneously perform opening and closing operations on the heavy-duty window sash; the plurality of window openers are all provided with a stroke metering device, the stroke metering device is used to measure the stroke length of the opening and closing stroke of the window opener, and the stroke metering device is electrically connected to the control module.

[0009] As a further solution of the present invention: the window opener is provided with a power assembly and a stroke assembly, one end of the power assembly is installed on the external window frame, and the other end thereof is transmission-connected to the stroke assembly; one end of the stroke assembly is transmission-connected to the power assembly, and the other end thereof is installed on the heavy-duty window sash, so that the power assembly is operated, driving the stroke assembly to operate synchronously, thereby opening or closing the heavy-duty window sash.

[0010] As a further solution of the present invention: the power component is provided with a power motor and a reduction mechanism, the power motor is electrically connected to the control module, so that the control module can control the operating parameters of the power motor; the input shaft of the reduction mechanism is transmission-connected to the output shaft of the power motor, and the output shaft of the reduction mechanism is transmission-connected to the stroke component.

[0011] As a further solution of the present utility model: the stroke metering device is provided with a photoelectric proximity switch and a shielding piece, the photoelectric proximity switch is electrically connected to the control module, one end of the shielding piece is fixedly connected to the output shaft of the power motor, and the other end forms a free end. When the power motor runs, the shielding piece follows the synchronous rotation and the free end of the shielding piece passes through the sensing slot of the photoelectric proximity switch.

[0012] As a further solution of the present invention: the stroke assembly is provided with a second shell, a screw, a nut, a sleeve and a sleeve ring, one end of the second shell is fixedly connected to the power assembly, and the other end thereof is fixedly connected to the sleeve ring, one end of the screw is transmission-connected to the output shaft of the power assembly, and the other end thereof is inserted into the interior of the sleeve to form a movable connection, one end of the sleeve is fixedly connected to the nut, and the other end thereof forms a free end and forms a sliding connection with the inner wall of the sleeve ring; the outer wall of the nut is slidingly connected to the second shell, and its inner wall is sleeved on the screw.

[0013] As a further solution of the present invention: a window sash connector is provided at the free end of the sleeve extending out of the sleeve ring, and the window sash connector is fixedly connected to the free end of the sleeve and is used to mount the free end of the sleeve on the heavy window sash.

[0014] As a further solution of the present invention: the control module is provided with a control circuit board and a control chip, the control circuit board is used to access external power, the control chip is fixed to the control circuit board and forms an electrical connection therewith, and the control circuit board is electrically connected to the power motor and the photoelectric proximity switch respectively.

[0015] As a further solution of the present invention: the power assembly is provided with a first shell, and the control module is installed inside the first shell.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a control module and multiple window openers, multiple window openers can be installed on the same large or heavy window sash, and through the unified control of the control module, the window can be quickly opened or closed.

[0018] 2. By setting up a control module and a stroke metering device, multiple window openers can be uniformly measured and controlled so that the speed and number of rotations of their power motors are consistent. This allows the moving strokes of the window openers on both sides of large and heavy window sashes to be controlled so that their stroke lengths remain the same, thereby making the movement of the window sashes more balanced and allowing the frames on both sides of the window sashes to move synchronously, thus avoiding the problem of window sash deformation that may be caused when multiple window openers move the window sashes at the same time.

[0019] 3. By utilizing the sensing of the shielding plate by the photoelectric proximity switch, the shielding plate can be installed on the output shaft of the power motor so that it rotates synchronously with the power motor. In this way, the photoelectric proximity switch can sense the rotation speed and number of revolutions of the power motor, so that the control module can perform more accurate synchronous control of the power motor.

[0020] Therefore, after the above-mentioned improvements, the present invention can provide a window opening system for multi-machine synchronous control of heavy window sashes, so that window openers can be installed on both side frames of large and heavy window sashes respectively, so that the two window openers can operate synchronously, so that the opening force and opening angle of the two side frames of the window sash can be uniformly controlled, thereby avoiding deformation of the heavy window sashes.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is a cross-sectional schematic diagram of the window opener of the present utility model;

[0024] Figure 2 It is a cross-sectional schematic diagram of the power assembly of the utility model;

[0025] Figure 3 This is a schematic diagram of the separation structure of the window opener of the present utility model;

[0026] Figure 4 This is a structural diagram of the power motor and the shielding sheet of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the photoelectric proximity switch and the shielding piece of the utility model.

[0028] The reference numerals and names in the figures are as follows:

[0029] 10 control module; 11 control circuit board; 20 window opener; 21 power assembly; 22 first housing; 23 window frame joint; 24 power motor; 25 reduction mechanism; 30 stroke assembly; 31 second housing; 32 sleeve ring; 33 screw; 34 nut; 35 sleeve; 36 window sash joint; 40 stroke metering device; 41 photoelectric proximity switch; 42 induction slot; 43 shielding piece. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 5In an embodiment of the utility model, a window opening system for multi-machine synchronous control of heavy-duty window sashes includes a control module 10 and a plurality of window openers 20, wherein the plurality of window openers 20 are electrically connected to the control module 10, respectively, so that the control module 10 can synchronously control the plurality of window openers 20; the plurality of window openers 20 are all installed on the same heavy-duty window sash, and simultaneously perform opening and closing operations on the heavy-duty window sash; the plurality of window openers 20 are all provided with a stroke metering device 40, the stroke metering device 40 is used to measure the specific stroke length of the opening stroke or closing stroke of the window opener 20, the stroke metering device 40 is electrically connected to the control module 10, and feeds back the stroke length measured for the window opener 20 to the control module 10, so that the control module 10 controls the operation of the window opener 20 according to the received stroke length.

[0032] Specifically, since a single window opener 20 is not fast enough to open a large, heavy window sash, or can easily cause deformation of the heavy window sash, multiple window openers 20 can be installed for the heavy window sash, such as installing a window opener 20 on each side frame of the heavy window sash, or installing multiple additional window openers 20 on the middle frame, thereby increasing the opening power of the entire window opening system and enabling rapid opening and closing operations on the heavy window sash. However, since the operation of the multiple window openers 20 is not uniform, the operating speed or number of rotations of the power motors 24 of the different window openers 20 may be inconsistent, resulting in different driving forces or different stroke lengths applied to the frame of the heavy window sash, causing deformation of the frame of the heavy window sash, or even damage to the heavy window sash.

[0033] Therefore, a window opening system with multi-machine synchronous control can be set up, and the control module 10 can be used to uniformly control all the window openers 20 installed on the same heavy-duty window sash, so that the multiple window openers 20 can operate synchronously, and the operating speed or number of rotations of the power motor 24 can be unified, so that the driving force or stroke length applied to the frame of the heavy-duty window sash can be uniformly controlled, thereby achieving rapid opening of the heavy-duty window sash and avoiding the problem of deformation of the frame of the heavy-duty window sash.

[0034] Secondly, in the same building or the same side of a building, when people hope that the opening angles of all window sashes are consistent for the sake of aesthetics, the window openers 20 of all window sashes can also be uniformly controlled, and the control module 10 can be used to simultaneously control the operating speed or number of rotations of all window openers 20 so that the opening angles of all window sashes can be kept consistent.

[0035] Again, regarding the setting of the control module 10, if it is to uniformly control multiple window openers 20 of the same large and heavy window sash, it is preferred to set the control module 10 inside the first shell 22 of the power component 21 of any one of the window openers 20, and electrically connect the stroke metering devices 40 of the multiple window openers 20 to the control module 10 through wired data transmission or wireless data transmission, so as to uniformly control the same large and heavy window sash.

[0036] In another embodiment, if the purpose is to control multiple window openers 20 in the same building or on the same side of a building, it is preferred to place the control module 10 in a dedicated control room or control cabinet, and electrically connect the stroke metering devices 40 of the multiple window openers 20 to the control module 10 so that they can transmit corresponding data to the control module 10, thereby enabling the control module 10 to uniformly control and manage the multiple window openers 20.

[0037] like Figure 1 and Figure 3 As shown, preferably, the window opener 20 is provided with a power component 21 and a stroke component 30, one end of the power component 21 is installed on the external window frame, and the other end thereof is transmission-connected to the stroke component 30; one end of the stroke component 30 is transmission-connected to the power component 21, and the other end thereof is installed on the heavy-duty window sash, so that the power component 21 is operated, driving the stroke component 30 to operate synchronously, thereby opening or closing the heavy-duty window sash.

[0038] Specifically, the stroke assembly 30 can adopt various implementation structures in the prior art, so that it can open or close the window sash under the drive of the power assembly 21. For example, a screw 33 transmission structure, a crank arm transmission structure, a chain transmission structure, etc. can be adopted.

[0039] like Figure 2 As shown, preferably, Figure 1 and Figure 3 As shown, preferably, the power component 21 is provided with a power motor 24 and a reduction mechanism 25, and the power motor 24 is electrically connected to the control module 10, so that the control module 10 can control the operating parameters of the power motor 24; the input shaft of the reduction mechanism 25 is transmission-connected to the output shaft of the power motor 24, and the output shaft of the reduction mechanism 25 is transmission-connected to the stroke component 30.

[0040] Specifically, to enhance the driving force of the power assembly 21, a reduction mechanism 25 may be provided to adjust the driving force of the power motor 24, correspondingly reducing the rotational speed and increasing the torque. Furthermore, the power assembly 21 may also include a first housing 22, within which the power motor 24 and reduction mechanism 25 may be mounted. A window frame connector 23 may also be provided at the end of the first housing 22 remote from the stroke assembly 30, allowing the window opener 20 to be mounted to an external window frame via the window frame connector 23.

[0041] like Figure 2 、 Figure 4 and Figure 5 As shown, preferably, the stroke metering device 40 is provided with a photoelectric proximity switch 41 and a shielding piece 43, the photoelectric proximity switch 41 is electrically connected to the control module 10, one end of the shielding piece 43 is fixed to the output shaft of the power motor 24, and the other end thereof forms a free end. When the power motor 24 runs, the shielding piece 43 follows the synchronous rotation, and the free end of the shielding piece 43 passes through the sensing slot 42 of the photoelectric proximity switch 41, so that the photoelectric proximity switch 41 can sense the moving speed and number of movements of the free end of the shielding piece 43.

[0042] Specifically, because the main output shaft of the power motor 24 needs to be connected to the input shaft of the reduction mechanism 25, the shielding plate 43 is preferably fixed to the secondary output shaft at the other end of the power motor 24. The photoelectric proximity switch 41 can sense the rotation speed and number of rotations of the free end of the shielding plate 43, and the sensed values are fed back to the control module 10, so that the control module 10 can calculate the current rotation speed and number of rotations of the power motor 24 based on the received values. Based on the length of the stroke assembly 30 of the window opener 20, the stroke length that the stroke assembly 30 can move when the power motor 24 rotates one circle can be calculated. Therefore, by controlling the number of rotations of the power motor 24, the opening or closing range of the heavy-duty window sash can be controlled accordingly.

[0043] like Figure 1 and Figure 3As shown, preferably, the stroke assembly 30 is provided with a second shell 31, a screw 33, a nut 34, a sleeve 35 and a sleeve ring 32, one end of the second shell 31 is fixedly connected to the power assembly 21, and the other end thereof is fixedly connected to the sleeve ring 32, one end of the screw 33 is transmission-connected to the output shaft of the power assembly 21, and the other end thereof is inserted into the sleeve 35 to form a movable connection, one end of the sleeve 35 is fixedly connected to the nut 34, and the other end thereof forms a free end and forms a sliding connection with the inner wall of the sleeve ring 32; the outer wall of the nut 34 is slidingly connected to the second shell 31, and its inner wall is sleeved on the screw 33, and forms a threaded transmission connection with the screw 33, so that the screw 33 rotates and drives the nut 34 to make a linear motion along the inner wall of the second shell 31, thereby driving the sleeve 35 to make a linear motion along the inner wall of the sleeve ring 32. The free end of the sleeve 35 extending out of the sleeve ring 32 is provided with a window sash connector 36 . The window sash connector 36 is fixed to the free end of the sleeve 35 and is used to mount the free end of the sleeve 35 on a heavy-duty window sash.

[0044] Specifically, in order to open or close the window sash, a window sash joint 36 can be provided on the sleeve 35, so that the sleeve 35 of the window opener 20 is installed on the window sash, and the power motor 24 is operated, which can drive the screw 33 to rotate synchronously, thereby utilizing the threaded transmission connection to convert the circumferential motion into linear motion, so that the nut 34 moves linearly along the stroke assembly 30, and then the sleeve 35 that performs synchronous linear motion can push the window sash to open or close.

[0045] like Figure 2 and Figure 3 As shown, preferably, the control module 10 is provided with a control circuit board 11 and a control chip, the control circuit board 11 is connected to external power, the control chip is fixed to the control circuit board 11 and forms an electrical connection therewith, and the control circuit board 11 is electrically connected to the power motor 24 and the photoelectric proximity switch 41 respectively.

[0046] Specifically, in order to drive the window opener 20, it is necessary to connect it to operating power. Therefore, a corresponding control circuit board 11 and a control chip can be provided so that external power can be transmitted to the power motor 24 or the photoelectric proximity switch 41 through the control circuit board 11. The control chip can be an MCU chip in existing products, which can run and calculate preset programs and data.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A window opening system for multi-machine synchronous control of heavy window sashes, characterized in that: The invention comprises a control module (10) and a plurality of window openers (20), wherein the plurality of window openers (20) are electrically connected to the control module (10) so that the control module (10) can synchronously control the plurality of window openers (20); the plurality of window openers (20) are all installed on the same heavy-duty window sash and simultaneously perform opening and closing operations on the heavy-duty window sash; the plurality of window openers (20) are all provided with a stroke metering device (40), the stroke metering device (40) being used to measure the stroke length of the opening and closing stroke of the window opener (20), and the stroke metering device (40) is electrically connected to the control module (10).

2. A window opening system for multi-machine synchronous control of heavy window sashes according to claim 1, characterized in that: The window opener (20) is provided with a power assembly (21) and a stroke assembly (30), one end of the power assembly (21) is mounted on the external window frame, and the other end thereof is transmission-connected to the stroke assembly (30); one end of the stroke assembly (30) is transmission-connected to the power assembly (21), and the other end thereof is mounted on the heavy-duty window sash, so that the power assembly (21) is operated, driving the stroke assembly (30) to operate synchronously, thereby opening or closing the heavy-duty window sash.

3. The window opening system for multi-machine synchronous control of heavy window sashes according to claim 2, characterized in that: The power assembly (21) is provided with a power motor (24) and a reduction mechanism (25); the power motor (24) is electrically connected to the control module (10), so that the control module (10) can control the operating parameters of the power motor (24); the input shaft of the reduction mechanism (25) is transmission-connected to the output shaft of the power motor (24), and the output shaft of the reduction mechanism (25) is transmission-connected to the stroke assembly (30).

4. A window opening system for multi-machine synchronous control of heavy window sashes according to claim 3, characterized in that: The stroke metering device (40) is provided with a photoelectric proximity switch (41) and a shielding piece (43), wherein the photoelectric proximity switch (41) is electrically connected to the control module (10), one end of the shielding piece (43) is fixedly connected to the output shaft of the power motor (24), and the other end thereof forms a free end, and when the power motor (24) is operated, the shielding piece (43) rotates synchronously with it, and the free end of the shielding piece (43) passes through the sensing slot (42) of the photoelectric proximity switch (41).

5. The window opening system for multi-machine synchronous control of heavy window sashes according to claim 2, characterized in that: The stroke assembly (30) is provided with a second housing (31), a screw (33), a nut (34), a sleeve (35) and a sleeve ring (32). One end of the second housing (31) is fixed to the power assembly (21), and the other end thereof is fixed to the sleeve ring (32). One end of the screw (33) is transmission-connected to the output shaft of the power assembly (21), and the other end thereof is inserted into the sleeve (35) to form a movable connection. One end of the sleeve (35) is fixed to the nut (34), and the other end thereof forms a free end and is slidably connected to the inner wall of the sleeve ring (32); the outer wall of the nut (34) is slidably connected to the second housing (31), and the inner wall thereof is sleeved on the screw (33).

6. The window opening system for multi-machine synchronous control of heavy window sashes according to claim 5, characterized in that: The free end of the sleeve (35) extending out of the sleeve ring (32) is provided with a window sash joint (36), and the window sash joint (36) is fixed to the free end of the sleeve (35) and is used to mount the free end of the sleeve (35) on the heavy window sash.

7. The window opening system for multi-machine synchronous control of heavy window sashes according to claim 4, characterized in that: The control module (10) is provided with a control circuit board (11) and a control chip. The control circuit board (11) is used to access external power. The control chip is fixed to the control circuit board (11) and forms an electrical connection therewith. The control circuit board (11) is electrically connected to the power motor (24) and the photoelectric proximity switch (41).

8. The window opening system for multi-machine synchronous control of heavy window sashes according to claim 2, characterized in that: The power assembly (21) is provided with a first housing (22), and the control module (10) is installed inside the first housing (22).

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