CN215804096U - Double-suspension window - Google Patents

Abstract

The utility model discloses a double-suspension window, and belongs to the technical field of doors and windows. Wherein, the window frame is provided with a window; the first gauze is arranged in the window, and the left side and the right side of the first gauze are connected with the inner wall surface of the window; the second gauze is arranged in the window, the left side and the right side of the second gauze are connected with the inner wall surface of the window, and the second gauze and the first gauze are vertically spaced; the first window sash and the second window sash are arranged in the window, the left side and the right side of the first window sash are connected with the inner wall surface of the window, the first window sash can lift to shield the first screen mesh, and the second window sash can lift to shield the second screen mesh; the driving mechanism is arranged in the window frame and comprises a linear traction piece, a transmission wheel and a driving motor, an output shaft of the driving motor is connected with the transmission wheel, the linear traction piece is wound on the transmission wheel, one end of the linear traction piece is connected with the first window sash, and the other end of the linear traction piece is connected with the second window sash; the first window sash and the second window sash can move simultaneously in opposite directions under the action of the linear traction piece, so that the window can be opened and closed automatically, a lifting handle is not required to be arranged, and the attractiveness and simplicity are improved.

Description

Double-suspension window

Technical Field

The utility model relates to the technical field of doors and windows, in particular to a double-hung window.

Background

Because current casement window, top-hung window and austral window, sliding sash open the back ventilation effect not good, can not form the ventilation circulation effect, can't realize fresh air entering, muddy air exhaust best effect, and casement window and top-hung window occupy indoor area or outdoor area when opening moreover to there is certain safety problem, consequently, a neotype double-hung window has appeared. However, the existing double-hung window is manually opened by lifting a handle, and is particularly labor-consuming for old people and children.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a double-hung window, which solves one or more of the problems of the prior art and provides at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

the present invention provides a double-hung window, comprising:

a window frame provided with a window;

the first gauze is arranged in the window, and the left side and the right side of the first gauze are respectively connected with the inner wall surfaces of the two sides of the window;

the second gauze is arranged in the window, and the left side and the right side of the second gauze are respectively connected with the inner wall surfaces of the two sides of the window; the second gauze and the first gauze are arranged at intervals from top to bottom;

the first window sash is arranged in the window, the left side and the right side of the first window sash are respectively connected with the inner wall surfaces of the two sides of the window, and the first window sash can move up and down and can shield the first gauze;

the left side and the right side of the second window sash are respectively connected with the inner wall surfaces of the two sides of the window, and the second window sash can move up and down and can shield the second screen;

the driving mechanism is arranged in the window frame and comprises a linear traction piece, a transmission wheel and a driving motor, an output shaft of the driving motor is connected with the transmission wheel, the linear traction piece is wound on the transmission wheel, one end of the linear traction piece is connected with the first window sash, and the other end of the linear traction piece is connected with the second window sash; the first sash and the second sash can be moved simultaneously in opposite directions under the action of the thread-like pulling member.

The utility model has at least the following beneficial effects: first gauze and second gauze are interval setting from top to bottom in the window, and after the window was closed, can form the opening that fresh air got into and muddy air discharged, and effectively isolated mosquito flies into indoor. The first window sash and the second window sash can move up and down and can respectively correspondingly shield the first gauze and the second gauze, so that the opening of the window is realized. The first window sash is connected with one end of the linear traction piece, the second window sash is connected with the other end of the linear traction piece, the linear traction piece is wound on the transmission wheel, the transmission wheel generates driving force for the linear traction piece and drives the transmission wheel to rotate rapidly through the driving motor, so that the linear traction piece can pull the first window sash and the second window sash to move in the opposite direction, when the first window sash moves upwards or downwards, the second window sash descends or upwards moves, automatic opening and automatic closing of a window are finally achieved, a lifting handle does not need to be arranged on the window sashes, and attractiveness and simplicity of a double-hung window product are improved.

As a further improvement of the above technical solution, the driving mechanism further includes a coupling, a clutch and a connecting shaft; the driving motor is fixed in the window frame, an output shaft of the driving motor is connected with one end of a coupler, the other end of the coupler is connected with one end of a clutch, the other end of the clutch is connected with one end of a connecting shaft, and the other end of the connecting shaft is connected with a driving wheel. The driving wheel is in transmission connection with an output shaft of the driving motor through the coupler, the clutch and the connecting shaft, and the clutch can play a safety role in overload protection.

As a further improvement of the above technical solution, the double-hung window further comprises a bearing seat; the bearing block is arranged in the window frame; the connecting shaft is connected with the bearing seat shaft. The bearing seat is arranged, and the connecting shaft is arranged on the bearing seat, so that the load of an output shaft of the driving motor can be effectively reduced.

As a further improvement of the above technical solution, the double-hung window further comprises a spring wheel; the spring wheels are arranged on the left side and the right side of the first window sash; the spring wheels are arranged on the left side and the right side of the second window sash; the inside wall face of window frame is equipped with the spout, the both ends of spout are the extension setting from top to bottom, the spring wheel can along the spout rolls.

The spring wheels are arranged on the first window sash and the second window sash, so that friction between the first window sash and the window frame and between the second window sash and the window frame are effectively reduced when the first window sash and the second window sash move in the vertical direction, and the spring wheels have elastic compression performance and apply left or right acting force on the first window sash or the second window sash, so that the first window sash or the second window sash can be quickly and simply detached from the window frame. The window frame sets up the spout that is extension from top to bottom, and the spout can play limiting displacement to first casement and second casement, rocks around taking place when avoiding first casement and second casement to move.

As a further improvement of the above technical solution, the first screen is located at an inner bottom of the window frame, and the second screen is located at an inner top of the window frame. The first gauze is arranged at the lower part of the window, the second gauze is arranged at the upper part of the window, the height distance between the first gauze and the second gauze is increased, so that the indoor and outdoor ventilation effect is enhanced, and the maximum opening degree of the window can be increased and the visual field can be widened after the first window sash shields the first gauze and the second window sash shields the second gauze.

As a further improvement of the technical scheme, the linear traction piece, the driving motor and the driving wheel are respectively provided with two linear traction pieces; the left side of the first sash is connected with one end of the linear traction piece; the left side of the second sash is connected with the other end of the linear traction piece; the right side of the first sash is connected with one end of the other linear traction piece; the right side of the second sash is connected with the other end of the other linear traction piece. The two linear traction pieces are arranged to pull the first window sash and the second window sash, so that the pulling force born by the single linear traction piece can be effectively reduced, and the service life of the linear traction piece is prolonged.

As a further improvement of the technical scheme, the linear traction piece is a steel wire rope, and the transmission wheel is a pulley. Because wire rope has the advantage that it is big to bear factor of safety, dead weight light in weight, has higher tensile strength, antifatigue intensity and impact toughness, therefore the threadiness pulls the piece to choose for use wire rope, and corresponding, the pulley is chosen for use to the drive wheel, can be around wire rope on the pulley, and when the pulley was rotatory, wire rope just can pull first casement and second casement motion.

As a further improvement of the above technical solution, the double-hung window further comprises a thread locker; the left side and the right side of the first window sash are both provided with the thread locking device; the left side and the right side of the second window sash are both provided with the thread locking device; the wire locking device is connected with the end part of the steel wire rope. The wire locking device is arranged on the first window sash and the second window sash, and the wire locking device is connected with the steel wire rope, so that the steel wire rope can be conveniently separated from the first window sash or the second window sash, and the quick assembly, disassembly and maintenance can be completed.

As a further improvement of the technical scheme, the linear traction piece is a chain, and the transmission wheel is a chain wheel. The first window sash and the second window sash are dragged by adopting the matching of the chain and the chain wheel, the elastic sliding and slipping phenomena are avoided, and the work is reliable.

As a further improvement of the above technical solution, the driving motor is a tubular motor or a planetary gear motor. The tubular motor has the characteristics of low energy consumption, quick start, good braking effect, long service life and small occupied area, so the tubular motor is selected as the driving motor. The planetary gear motor has the advantages of compact structure, small return clearance, high precision, long service life and large rated output torque, so the driving motor is the planetary gear motor.

Drawings

The utility model is further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of a double-hung window in a closed state according to the present invention;

fig. 2 is a schematic structural diagram of a double-hung window provided in the present invention, in a window closed state, according to another embodiment of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1.

The drawings are numbered as follows:

110. a first sash; 120. a second sash; 210. a first screen; 220. a second screen; 300. a planetary reduction motor; 310. a clutch; 320. a coupling; 400. a window frame; 500. a spring wheel; 600. a driving wheel; 610. a bearing seat; 620. a connecting shaft; 700. a linear traction member; 710. a wire locker; 800. a tubular motor; 900. a cushion pad.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

It should be noted that, in the drawing, the Y direction is from the left side of the double-hung window to the right side; the Z direction is directed from the lower side of the double-hung window to the upper side, and the X direction is perpendicular to the YZ plane.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3, several examples of the double-hung window of the present invention will be described below.

As shown in fig. 1 to 3, an embodiment of the present invention provides a double-hung window, including: window frame 400, first screen 210, second screen 220, first sash 110, second sash 120, and a drive mechanism.

Wherein the window frame 400 is provided with a window. Specifically, the window frame 400 may be formed by four aluminum profiles which are joined together in a right angle and closed in a loop from end to end, and the opening surrounded by the four aluminum profiles is a window.

The first gauze 210 is disposed in the window, and the left and right sides of the first gauze 210 may be respectively connected to inner wall surfaces of both sides of the window by bolts or a welding process, so that the first gauze 210 is fixed to the window frame 400.

The second gauze 220 is disposed in the window, and the left side and the right side of the second gauze 220 may be connected to inner wall surfaces of both sides of the window by bolts or welding, respectively, so that the second gauze 220 is fixed to the window frame 400.

The first screen 210 and the second screen 220 may be diamond mesh. The second gauze 220 is vertically spaced from the first gauze 210, and the first gauze 210 is located below the second gauze 220.

In this embodiment, the first gauze 210 is located at the inner bottom of the window frame 400, and specifically, the bottom side of the first gauze 210 and the inner wall surface of the bottom side of the window may be connected by bolts. The second gauze 220 is located at the inner top of the window frame 400, and specifically, the top side of the second gauze 220 and the inner wall surface of the top side of the window may be connected by bolts, but not limited to, bolted connection, welding, or direct contact. The design can increase the height distance between the first gauze 210 and the second gauze 220, thereby enhancing the indoor and outdoor ventilation effect, increasing the maximum opening degree of the window and widening the visual field.

Of course, the first screen 210 or the second screen 220 may be disposed at a middle position of the window, but the maximum opening degree of the window is relatively small.

The sum of the areas of the first screen 210 and the second screen 220 may account for half of the window. The first screen 210 and the second screen 220 may be the same area.

The first window sash 110 is disposed in the window, the left side and the right side of the first window sash 110 are respectively connected to inner wall surfaces of two sides of the window, and the first window sash 110 can move up and down and can shield the first screen 210.

The second window sash 120 is disposed in the window, the left side and the right side of the second window sash 120 are respectively connected to inner wall surfaces of two sides of the window, and the second window sash 120 can move up and down and can shield the second screen 220.

The left side and the right side of first casement 110 may be provided with a slider, correspondingly, window frame 400 is provided with a guide rail extending up and down, and is connected with the guide rail through the slider, so that first casement 110 can smoothly move up and down along the guide rail, and first casement 110 is prevented from shaking back and forth in the movement process. Likewise, left and right sides of second window sash 120 are provided with sliders, and window frame 400 is provided with a guide rail.

In this embodiment, the double-hung window further includes a spring wheel 500. The left side and the right side of the first window sash 110 are both provided with the spring wheel 500, the spring wheel 500 is mounted on the first window sash 110 through bolts, correspondingly, the inner wall surface of the left side and the inner wall surface of the right side of the window frame 400 are both provided with sliding grooves, the two ends of the sliding grooves extend up and down, the opening of the sliding grooves faces the first window sash 110, the spring wheel 500 is arranged in the sliding grooves, the spring wheel 500 is made to contact with the wall surface of the sliding grooves, and when the first window sash 110 moves up and down, the spring wheel 500 can roll along the sliding grooves. The axis of rotation of the spring wheel 500 may be disposed along the X-axis or the Y-axis.

Similarly, the spring wheel 500 is disposed on both left and right sides of the second window sash 120, and the spring wheel 500 is mounted on the second window sash 120 by bolts. The inside wall of the window frame 400 is provided with a sliding groove, the two ends of the sliding groove extend up and down, and the spring wheel 500 can roll along the sliding groove.

Spring wheel 500 is disposed on first window sash 110 and second window sash 120, so that friction between first window sash 110 and window frame 400 and between second window sash 120 and window frame 400 is effectively reduced when first window sash 110 and second window sash 120 move in the up-down direction, and spring wheel 500 has elastic compression performance, and applies left or right acting force to first window sash 110 or second window sash 120, so that first window sash 110 or second window sash 120 can be quickly and simply detached from window frame 400.

The window frame 400 is provided with a sliding groove extending vertically, and the sliding groove can limit the first window sash 110 and the second window sash 120, so that the first window sash 110 and the second window sash 120 are prevented from swinging forward and backward during movement.

First sash 110 and second sash 120 may be, but are not limited to being, made of a glass material, and their dimensions may be the same.

First sash 110 may be positioned forward, first screen 210 and second screen 220 may be positioned intermediate, and second sash 120 may be positioned rearward, i.e., first screen 210 and second screen 220 may be positioned between first sash 110 and second sash 120, as viewed in the YZ plane.

The driving mechanism is provided in the window frame 400, and includes a linear drawing member 700, a driving wheel 600, and a driving motor.

One end of the thread pulling member 700 is connected to the first window sash 110, and the other end of the thread pulling member 700 is connected to the second window sash 120, and the connection may be a bolt connection or a welding connection. The wireform traction element 700 may be a chain, a wire rope, or a rope of other material. First sash 110 and second sash 120 are simultaneously movable in opposite directions by the wireform pull 700.

The driving wheel 600 is provided on the top of the window frame 400, and in this embodiment, the driving wheel 600 is located above the second screen 220. The drive wheel 600 is rotatable about its left and right horizontal axes. Specifically, the window frame 400 is connected with the bearing seat 610 through a bolt, the bearing seat 610 is arranged in the window frame 400, the driving wheel 600 is fixedly connected with the connecting shaft 620, the connecting shaft 620 is connected with the bearing seat 610, and the driving wheel 600 can rotate around the left axis and the right axis of the connecting shaft 620 rapidly.

The linear traction member 700 is wound around the driving wheel 600, that is, the rolling surface of the driving wheel 600 is connected with the linear traction member 700. When the linear traction member 700 is a chain, the transmission wheel 600 is a chain wheel, and the chain wheel is meshed with the chain wheel, when the chain wheel rotates clockwise, the chain wheel can drive the chain to move, so that the first sash 110 moves upwards, and the second sash 120 descends; when the sprocket rotates counterclockwise, the sprocket drives the chain to move in the opposite direction, so that the first sash 110 is lowered and the second sash 120 is raised.

In this embodiment, the linear traction member 700 is a steel wire rope, the transmission wheel 600 is a pulley, the steel wire rope is wound on the pulley, and when the pulley rotates clockwise, the pulley can drive the steel wire rope to move, so that the steel wire rope pulls the first window sash 110 to move upwards, and meanwhile, the second window sash 120 descends; when the pulley rotates counterclockwise, the pulley drives the steel cable to move in the reverse direction, so that the steel cable pulls the second window sash 120 to ascend, and meanwhile, the first window sash 110 moves downward.

Because wire rope has the advantage that it is big to bear factor of safety, dead weight light in weight, has higher tensile strength, fatigue resistance and impact toughness, therefore threadiness pulls piece 700 to choose for use wire rope, and correspondingly, drive wheel 600 chooses for use the pulley, can twine wire rope on the pulley, and when the pulley was rotatory, wire rope just can pull first casement 110 and second casement 120 motion.

In this embodiment, two linear drawing members 700, two driving motors and two driving wheels 600 are provided, and the left side of the first window sash 110 is connected to one end of one linear drawing member 700; the left side of the second sash 120 is connected to the other end of a thread pull 700; the right side of the first window sash 110 is connected to one end of another linear drawing member 700; the right side of the second sash 120 is connected to the other end of the other thread pull 700. By adopting the design, the pulling force borne by a single linear traction piece 700 can be effectively reduced, so that the service life of the linear traction piece 700 is prolonged.

An output shaft of the driving motor is connected with the driving wheel 600, and can drive the driving wheel 600 to rotate. Specifically, the driving wheel 600 may be installed on an output shaft of the driving motor. The driving motor is fixed in the window frame 400.

Or, an output shaft of the driving motor is connected with one end of the coupler 320, the other end of the coupler 320 is connected with one end of the clutch 310, the other end of the clutch 310 is connected with one end of the connecting shaft 620, and the other end of the connecting shaft 620 is connected with the driving wheel 600. The driving wheel 600 is in transmission connection with the output shaft of the driving motor through the coupler 320, the clutch 310 and the connecting shaft 620, and the clutch can play a safety role in overload protection.

As shown in fig. 1 and 3, the driving motor may be a planetary reduction motor 300 because the planetary reduction motor has advantages of compact structure, small return gap, high precision, long service life and large rated output torque. The driving wheel 600 is connected to a connecting shaft 620 and fixedly installed through a bearing housing 610, an output shaft of the planetary reduction motor 300 is connected to the clutch 310 through a coupling 320, and the connecting shaft 620 is connected to the clutch 310. When the output shaft of the planetary gear motor 300 rotates, the driving wheel 600 can be driven to rotate through the coupling 320 and the clutch 310.

Since there are two transmission wheels 600, and correspondingly, there are two linear traction members 700, and two planetary reduction motors 300.

As shown in fig. 2, the driving motor may be a tubular motor 800, because the tubular motor has the characteristics of low energy consumption, fast start, good braking effect, long service life and small occupied area. Preferably, the tubular motor 800 is a tubular motor with dual-shaft output, such as a bidirectional output tubular motor disclosed in the patent with the publication number CN201048325Y, and the tubular motor is prior art and therefore will not be described herein again. The two drive wheels 600 may be connected to the two output shafts of the tubular motor, respectively.

The driving motor may be bolted to the window frame 400 through a motor mount. The top of the window frame 400 is provided with a receiving groove for receiving the driving wheel 600 and the driving motor.

Furthermore, it is not excluded that the drive motor is another type of motor.

The driving wheel 600 is driven to rotate rapidly by the driving motor, so that the linear traction piece 700 can pull the first window sash 110 and the second window sash 120 to move reversely, when the first window sash 110 moves upwards or downwards, the second window sash 120 correspondingly moves downwards or upwards, and finally, the automatic opening and closing of the window are realized, a lifting handle is not required to be arranged on the window sashes, and the attractiveness and simplicity of the double-hung window product are improved.

In some embodiments, the double-hung window further comprises a cushion 900. The cushion pad 900 may be a rubber pad.

The top and bottom sides of the first window sash 110 are provided with the buffer pads 900; the bumper pad 900 is provided on both the top and bottom sides of the second window sash 120. The buffer pad 900 may be installed by a bolt, or the first window sash 110 and the second window sash 120 are provided with a slot, and the buffer pad 900 is clamped in the slot and exposed out of the slot. The cushion 900 may be in the form of an elongated strip or block.

The cushions 900 are disposed on the top and bottom sides of the first window sash 110 and the second window sash 120, so that when the first window sash 110 or the second window sash 120 moves up or down to a proper position, loud noise and damage caused by collision between the first window sash 110 or the second window sash 120 and the window frame 400 can be effectively prevented.

In some embodiments, the double-hung window further comprises a wire locker 710.

When the linear traction member 700 is a steel wire rope, the thread locking device 710 is disposed on both the left side and the right side of the first window sash 110; the locker 710 is provided at both left and right sides of the second window sash 120. The left and right sides of the first window sash 110 and the second window sash 120 may be provided with connection portions, the connection portions may be provided with screw holes, and the thread locker 710 may be screwed into the screw holes to implement the installation of the thread locker 710.

The end of the steel wire rope is connected with the wire locker 710, so that the steel wire rope is fixed relative to the wire locker 710, and the first window sash 110 and the second window sash 120 can be pulled to move under the pulling force of the steel wire rope. The wire locker 710 is connected to the wire rope, so that the wire rope can be conveniently separated from the first window sash 110 or the second window sash 120, and the rapid disassembly, assembly and maintenance can be completed.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.

Claims (10)

1. A double hung window, comprising:

a window frame (400) provided with a window;

the first screen (210) is arranged in the window, and the left side and the right side of the first screen (210) are respectively connected with the inner wall surfaces of the two sides of the window;

the second gauze (220) is arranged in the window, and the left side and the right side of the second gauze (220) are respectively connected with the inner wall surfaces of the two sides of the window; the second gauze (220) and the first gauze (210) are arranged at intervals up and down;

the first window sash (110) is arranged in the window, the left side and the right side of the first window sash (110) are respectively connected with the inner wall surfaces of the two sides of the window, and the first window sash (110) can move up and down and can shield the first gauze (210);

the second window sash (120) is arranged in the window, the left side and the right side of the second window sash (120) are respectively connected with the inner wall surfaces of the two sides of the window, and the second window sash (120) can move up and down and can shield the second screen (220);

the driving mechanism is arranged in the window frame (400) and comprises a linear traction piece (700), a transmission wheel (600) and a driving motor, an output shaft of the driving motor is connected with the transmission wheel (600), the linear traction piece (700) is wound on the transmission wheel (600), one end of the linear traction piece (700) is connected with the first window sash (110), and the other end of the linear traction piece (700) is connected with the second window sash (120); the first sash (110) and the second sash (120) are simultaneously movable in opposite directions by the thread pull (700).

2. The double hung window of claim 1, wherein said drive mechanism further comprises a coupling (320), a clutch (310), and a connecting shaft (620); the driving motor is fixed in the window frame (400), an output shaft of the driving motor is connected with one end of the coupler (320), the other end of the coupler (320) is connected with one end of the clutch (310), the other end of the clutch (310) is connected with one end of the connecting shaft (620), and the other end of the connecting shaft (620) is connected with the driving wheel (600).

3. The double-hung window of claim 2, further comprising a bearing block (610); the bearing seat (610) is arranged in the window frame (400); the connecting shaft (620) is connected with the bearing seat (610) through a shaft.

4. The double-hung window of claim 3, further comprising a spring wheel (500); the spring wheels (500) are arranged on the left side and the right side of the first window sash (110); the spring wheels (500) are arranged on the left side and the right side of the second window sash (120); the inside wall face of window frame (400) is equipped with the spout, the both ends of spout are the extension setting from top to bottom, spring wheel (500) can along the spout rolls.

5. The double hung window of claim 4, wherein the first screen (210) is located at an inner bottom of the window frame (400) and the second screen (220) is located at an inner top of the window frame (400).

6. Double-hung window according to claim 5, wherein there are two of the linear traction member (700), the drive motor and the transmission wheel (600); the left side of the first sash (110) is connected with one end of a linear traction piece (700); the left side of the second sash (120) is connected with the other end of the linear traction piece (700); the right side of the first sash (110) is connected with one end of the other thread-like traction piece (700); the right side of the second sash (120) is connected to the other end of the other thread-like pulling element (700).

7. Double-hung window according to claim 6, wherein the linear traction element (700) is a wire rope and the transmission wheel (600) is a pulley.

8. The double-hung window of claim 7, further comprising a turnbuckle (710); the left side and the right side of the first window sash (110) are provided with the thread locking device (710); the left side and the right side of the second window sash (120) are provided with the thread locking device (710); the wire locker (710) is connected with the end of the steel wire rope.

9. Double-hung window according to claim 8, wherein the thread-like pulling element (700) is a chain and the transmission wheel (600) is a sprocket.

10. The double hung window according to any one of claims 1 to 9, wherein the drive motor is a tubular motor (800) or a planetary gear motor (300).

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