A folding window

Abstract

The application relates to the technical field of doors and windows, in particular to a folding window which comprises a window frame, an upper window sash and a lower window sash, the inner walls of the two sides of the window frame are provided with window sash accommodating areas and vertical sliding grooves in parallel, the lower frame of the lower window sash is further provided with an inwardly protruding protruding frame, a coil spring seat and a sliding block are arranged in the sliding groove, the coil spring in the coil spring seat is connected with the sliding block, the two ends of the protruding frame are respectively provided with plug-in parts which can be rotatably plugged with the corresponding sliding blocks, the elastic force of the coil spring can form an initial opening torque on the lower window sash through the force arm formed by the protruding frame, the initial opening torque can drive the lower window sash and the upper window sash to rotate and fold to form an initial included angle greater than 0 degree; the folding window provided by the application does not need the user to manually push the window outward when the window is opened, can automatically generate an opening torque to drive the lower window sash and the upper window sash to rotate upward to form a certain initial included angle, so that only an upward pulling force needs to be applied to the lower window sash to realize the opening of the window, the opening operation is simple, the opening is labor-saving, and the structure design is simple and ingenious.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of doors and windows, and particularly relates to a folding window. BACKGROUND

[0002] The folding window generally comprises a window frame, an upper window sash and a lower window sash, wherein the top of the upper window sash is hinged to the upper portion of the window frame, the bottom of the upper window sash is hinged to the top of the lower window sash, and the bottom of the lower window sash is slidably connected to the two side walls of the window frame. The folding window can be opened or closed by driving the upper window sash and the lower window sash to rotate. The prior application of the applicant, an electric folding door and window, can be more convenient and labor-saving to open or close the folding window by means of the electric drive device cooperating with the lifting balance. However, the prior application has a problem that exists in the existing folding window (whether it is a manual folding window or an electric folding window), that is, when the folding window is straightened and closed, the upper window sash and the lower window sash are vertically accommodated in the window frame in the same plane, and the top of the lower window sash abuts against the bottom of the upper window sash. At this time, no matter how much upward pulling force is applied to the lower window sash, since the force arm is 0, no torque for driving the upper window sash and the lower window sash to rotate and fold open can be generated. Therefore, when the folding window is opened, the user needs to manually push the upper window sash and the lower window sash outward to rotate and fold to a certain initial included angle (greater than 0°) first, and then apply an upward pulling force to the lower window sash to form the torque for driving the upper window sash and the lower window sash to rotate and fold open, so as to complete the opening of the folding window. The opening operation is relatively cumbersome, especially for the electric folding window, which cannot realize full-automatic opening of the folding window. The user needs to manually push the upper window sash and the lower window sash outward to rotate and fold to a certain initial included angle first, and then the lifting motor can drive the folding window to open. SUMMARY

[0003] In order to overcome the defects in the prior art, the purpose of the present application is to provide a folding window which does not need the user to manually push the window outward when opening the window, can automatically generate an opening torque to drive the lower window sash and the upper window sash to rotate upward to form a certain initial included angle, so that only an upward pulling force needs to be applied to the lower window sash to realize the opening of the folding window. The opening operation is simple and convenient, and the opening is labor-saving. The structure is simple and ingenious.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] The application relates to a folding window, which comprises a window frame, an upper window sash and a lower window sash, the top outer side of the upper window sash is hinged to the upper outer side of the window frame, the bottom inner side of the upper window sash is hinged to the top inner side of the lower window sash, the inner walls of the two sides of the window frame are provided with a window sash accommodating area and a vertical sliding groove in parallel along the direction from the outside to the inside, the lower frame of the lower window sash is further provided with an inwardly protruding protruding frame, a fixed coil spring seat and a slidable sliding block are arranged in each sliding groove, a plurality of groups of coil springs are arranged in the coil spring seat, the sliding block is arranged below the coil spring seat, each coil spring is pulled out from the coil spring seat and connected with the sliding block, the two ends of the protruding frame are respectively provided with an inserting part which extends into the two sliding grooves and is rotatably inserted with the corresponding sliding block, the folding window is further provided with a lock, the upper window sash and the lower window sash are vertically accommodated in the window sash accommodating area in the same plane when being closed and can be locked by the lock, the elastic force of the coil spring can form an initial opening torque on the lower window sash through the force arm of the protruding frame, and the initial opening torque can drive the lower window sash and the upper window sash to rotate upwards to form an initial included angle greater than 0 degrees after the lock is unlocked.

[0006] As a preferred technical scheme, the protruding frame is further provided with a driving mechanism, the driving mechanism comprises a lifting motor fixedly connected with the lower window sash and a transmission shaft driven by the lifting motor, the two ends of the transmission shaft extend towards the two sliding grooves to form the inserting parts, vertical racks are further fixedly arranged on the two side walls of the window frame, gears meshing with the corresponding racks are arranged at the positions close to the two ends of the transmission shaft, the lifting motor can drive the sliding block to slide up and down along the sliding groove through the transmission shaft, the gears and the racks, and then drive the lower window sash and the upper window sash to rotate upwards to fold the window or rotate downwards to straighten the window, the lock is driven to be unlocked or locked by a lock motor, the folding window is further provided with a controller, the controller is connected with the lock motor and the lifting motor, and when receiving an opening instruction, the controller can first control the lock motor to be started to drive the lock to be unlocked, then delay for t, and then control the lifting motor to be started to drive the window to be opened.

[0007] As a preferred technical scheme, the lifting motor comprises a motor body fixedly connected and an output gear box, the output gear box is provided with a first output gear and a second output gear which are meshed with each other, the output end of the motor body is in transmission connection with the first output gear, the shaft center of the second output gear is provided with a connecting through hole, the transmission shaft is inserted into the connecting through hole and the two ends of the transmission shaft are respectively out of the connecting through hole, the two racks are vertically fixedly connected on the two side walls of the window frame, the two gears are sleeved on the transmission shaft, and the transmission shaft and the connecting through hole and the transmission shaft and the two gears cannot relatively rotate.

[0008] As a preferred technical scheme, the left and right sides of the sliding block are provided with coil spring connecting structures, the coil spring connecting structures comprise mounting holes and mounting protrusions which are arranged in an up-down interval, the tail ends of the coil springs are provided with corresponding through holes, so that one of the through holes can be sleeved on the mounting protrusion, and the other through hole is opposite to the mounting hole and the coil spring and the sliding block are fixedly connected through a screw.

[0009] As a preferred technical scheme, the sliding block is provided with an axle hole penetrating through the front and rear end faces of the sliding block, a bearing is fixedly installed in the axle hole, and the insertion part is inserted into the bearing so as to be rotatably inserted with the sliding block.

[0010] As a preferred technical scheme, the convex frame is externally fixed with a shell, and the driving mechanism is hiddenly accommodated in the shell.

[0011] Compared with the folding window in the prior art, the folding window provided by the embodiment is provided with a window sash accommodating area and a vertical sliding groove arranged in parallel on the inner walls of the two sides of the window frame, a coil spring seat and a sliding block connected by a coil spring are arranged in the sliding groove, and an inwardly convex convex frame is arranged on the lower frame of the lower window sash and rotatably inserted with the sliding block. Since the upper window sash and the lower window sash are vertically accommodated in the window sash accommodating area in the same plane when the upper window sash and the lower window sash are closed, the pulling force of the coil spring applied to the sliding block can form an initial opening torque on the lower window sash through the force arm of the convex frame. When the window is opened, the lock is opened, and the initial opening torque can drive the lower window sash and the upper window sash to rotate and fold to form an initial included angle greater than 0°. At this time, an upward pulling force (manual or electric) is applied to the lower window sash. Since the initial included angle exists, the upward pulling force can form a torque for driving the lower window sash and the upper window sash to continue to rotate and fold, so that the window can be opened. Since the coil spring can share the gravity of the lower window sash and the upper window sash, only a small upward pulling force is required to open the window, and the window is labor-saving.

[0012] The concept, specific structure and effects of the present application will be further described below with reference to the accompanying drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a structural schematic view of the folding window in the present application in a folded closed state;

[0014] Figure 2 FIG. 3 is a structural schematic view of the folding window in the present application in a folded closed state; Figure 1 FIG. 4 is a structural schematic view of the folding window in the present application in which part of the window frame and the convex frame shell are omitted;

[0015] Figure 3 FIG. 6 is a partial enlarged view of part A in FIG. 5. Figure 2

[0016] In the figures, window frame 1, window sash accommodating area 11, sliding groove 12, upper window sash 2, lower window sash 3, convex frame 31, support frame 311, coil spring seat 41, sliding block 42, mounting hole 421, mounting protrusion 422, bearing 423, lifting motor 51, motor body 511, output gear box 512, transmission shaft 52, rack 53, and gear 54. DETAILED DESCRIPTION

[0017] ​To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, it should be understood that terms such as "installation," "connection," and "hinged" used in this specification and claims should be interpreted broadly, referring to direct connections or indirect connections through intermediate elements. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] like Figures 1-3 As shown, this embodiment provides a folding window, including a window frame 1, an upper window sash 2, and a lower window sash 3. The top outer side of the upper window sash 2 is hinged to the upper outer side of the window frame 1, and the bottom inner side of the upper window sash 2 is hinged to the top inner side of the lower window sash 3. The inner walls on both sides of the window frame 1 are provided with a window sash receiving area 11 and a vertical sliding groove 12 arranged side by side from the outside to the inside. The lower edge of the lower window sash 3 is also provided with an inwardly protruding bracket 31. Each sliding groove 12 is provided with a fixed spring seat 41 and a slider 42 that can slide up and down. The spring seat 41 is provided with several sets of springs (omitted in the figure). The slider 42 is located below the spring seat 41. The coil spring is pulled down from the coil spring seat 41 and connected to the slider 42. The two ends of the extension frame 31 are respectively provided with insertion parts that extend into the two slide grooves 12 and are rotatably inserted into the corresponding sliders 42. The folding window is also provided with a lock (not shown in the figure). When the upper window sash 2 and the lower window sash 3 are closed, they are vertically housed in the window sash housing area 11 on the same plane and can be locked by the lock. The elastic force of the coil spring can generate a certain initial opening torque on the lower window sash 3 through the lever arm formed by the extension frame 31. When the lock is unlocked, the initial opening torque can drive the lower window sash 3 and the upper window sash 2 to rotate upward to form an initial included angle greater than 0°.

[0019] Compared with the folding window in the prior art, the folding window provided by the embodiment has the following advantages: the parallel window sash accommodating area 11 and vertical sliding groove 12 are arranged on the inner walls of the two sides of the window frame 1, the coil spring seat 41 and sliding block 42 connected by a coil spring are arranged in the sliding groove 12, and the inwardly protruding protruding frame 31 is arranged on the lower edge of the lower window sash 3 and rotatably inserted into the sliding block 42. When the upper window sash 2 and the lower window sash 3 are closed and vertically accommodated in the window sash accommodating area 11, the pulling force of the coil spring applied to the sliding block 42 can form an initial opening torque on the lower window sash 3 through the force arm formed by the protruding frame 31. When the window is opened, the lock is opened, and the initial opening torque can drive the lower window sash 3 and the upper window sash 2 to rotate and fold to form an initial included angle greater than 0°. At this time, an upward pulling force (manual or electric) is applied to the lower window sash 3. Because of the existence of the initial included angle, the upward pulling force can form a torque to drive the lower window sash 3 and the upper window sash 2 to continue to rotate and fold, so that the window can be opened. Because the coil spring can share the weight of the lower window sash 3 and the upper window sash 2, only a small upward pulling force is needed to open the window, and the window is opened with less effort.

[0020] As a preferred arrangement of the embodiment, the protruding frame 31 is further provided with a driving mechanism, which comprises a lifting motor 51 fixedly connected to the lower sash 3 and a transmission shaft 52 driven by the lifting motor 51, the protruding frame 31 comprises at least two support frames 311 fixedly connected to the lower sash 3 and protruding inwardly, the transmission shaft 52 passes through each support frame 311 and is rotatably supported thereby, the two ends of the transmission shaft 52 extend toward the two sliding grooves 12 respectively to form the insertion portions, each side wall of the window frame 1 is further fixedly provided with a vertical rack 53, each end of the transmission shaft 52 is provided with a gear 54 engaged with the corresponding rack 53, the lifting motor 51 can drive the sliding block 42 to slide up and down along the sliding groove 12 through the transmission shaft 52, the gear 54 and the rack 53, thereby driving the lower sash 3 and the upper sash 2 to rotate upward to fold and open the window or rotate downward to straighten and close the window, the lock is driven to be unlocked or locked by the lock motor, the folding window is further provided with a controller (not shown in the drawings), which is connected to the lock motor and the lifting motor 51 and can control the lock motor to be started to drive the lock to be unlocked when receiving an opening instruction, and then control the lifting motor 51 to be started to drive the window to be opened after a time delay t. Preferably, the lifting motor 51 comprises a motor body 511 fixedly connected thereto and an output gear box 512, the output gear box 512 is provided with a first output gear and a second output gear engaged with each other (not shown in the drawings), the output end of the motor body 511 is drivingly connected to the first output gear, the axis of the second output gear is provided with a connecting through hole, the transmission shaft 52 is inserted into the connecting through hole and extends out from the two ends thereof, the two racks 53 are vertically fixedly connected to the two side walls of the window frame 1 respectively, the two gears 54 are sleeved on the transmission shaft 52, and the transmission shaft 52 and the connecting through hole and the transmission shaft 52 and the two gears 54 cannot rotate relative to each other. The electric folding window provided by the arrangement is driven to be opened or closed by the lifting motor 51, when the window is opened, an opening instruction is sent to the controller (which can be sent by a button, a remote control or a network), the controller controls the lock motor to be started to unlock first, at this time, the initial torque generated by the coil spring and the protruding frame 31 can drive the lower sash 3 and the upper sash 2 to rotate and fold to form an initial included angle greater than 0°, and then the lifting motor 51 is controlled to be started to exert an upward pulling force on the lower sash 3 to drive the lower sash 3 and the upper sash 2 to rotate and fold to be opened, so that full-automatic opening of the window can be realized without manual participation of the user.

[0021] As a preferred arrangement of the present embodiment, the left and right sides of the sliding block 42 are provided with coil spring connecting structures, which include mounting holes 421 and mounting protrusions 422 arranged in an upper and lower spaced manner. The ends of each coil spring are provided with corresponding through holes, so that one of the through holes can be sleeved on the mounting protrusion 422, and the other through hole is opposite to the mounting hole 421 and the coil spring is fixedly connected with the sliding block 42 through a screw. By arranging the mounting holes 421 and the mounting protrusions 422 on the left and right sides of the sliding block 42, and arranging the corresponding through holes at the ends of the coil springs, during assembly, only the ends of the coil springs need to be hung on the mounting protrusions 422, and the through holes are passed through the mounting holes 421 through a screw, so that the fixed connection of the coil spring and the sliding block 42 can be realized, which is convenient to operate, reliable in connection, the structure of the sliding block 42 and the coil spring is simpler, the manufacturing cost is lower, and the tensile strength of the coil spring is not greatly affected, and the tensile strength of the coil spring is greater.

[0022] As a preferred arrangement of the present embodiment, the sliding block 42 is provided with an axle hole, which penetrates the front and rear end faces of the sliding block 42, and a bearing 423 is fixedly installed in the axle hole. The plug-in part is inserted into the bearing 423, so that it can be rotatably plugged with the sliding block 42.

[0023] As a preferred arrangement of the present embodiment, the convex frame 31 is externally fixedly provided with a shell, and the driving mechanism is hiddenly accommodated in the shell. The shell can shield and protect the driving mechanism, and is more beautiful. In addition, when the window is opened manually, the shell can be used as a handle for driving the window to open, and when the window is closed, the shell can be used as a handrail and support frame.

[0024] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form a technical solution.

Claims

1. A folding window comprising a window frame, an upper sash and a lower sash, the top outer side of the upper sash being hingedly connected to the upper outer side of the window frame, the bottom inner side of the upper sash being hingedly connected to the top inner side of the lower sash, characterized in that, The two side inner walls of the window frame are provided with a sash accommodating area and a vertical sliding groove in parallel along the direction from outside to inside, the lower sash is further provided with an inwardly protruding protruding frame, each sliding groove is provided with a fixed coil spring seat and a sliding block capable of sliding up and down, the coil spring seat is provided with a plurality of groups of coil springs, the sliding block is located below the coil spring seat, each coil spring is pulled out from the coil spring seat and connected with the sliding block, the two ends of the protruding frame are respectively provided with an insertion part extending into the two sliding grooves and rotatably inserted with the corresponding sliding block, the folding window is further provided with a lock, the upper sash and the lower sash are vertically accommodated in the sash accommodating area when closed and can be locked by the lock, the elastic force of the coil spring can form an initial opening torque on the lower sash through the force arm of the protruding frame, and the initial opening torque can drive the lower sash and the upper sash to rotate upward to form an initial included angle greater than 0° after the lock is unlocked; the protruding frame is further provided with a driving mechanism, the driving mechanism comprises a lifting motor fixedly connected with the lower sash and a transmission shaft driven by the lifting motor, the two ends of the transmission shaft extend towards the two sliding grooves to form the insertion part, the two side walls of the window frame are further provided with vertical racks, the transmission shaft is provided with gears meshing with the corresponding racks at the positions close to the two ends, and the lifting motor can drive the sliding block to slide up and down along the sliding groove through the transmission shaft, the gear and the rack, and then drive the lower sash and the upper sash to rotate upward to fold the window or rotate downward to straighten the closed window, the lock is driven to be unlocked or locked by a lock motor, the folding window is further provided with a controller, the controller is connected with the lock motor and the lifting motor, and when receiving an opening instruction, the controller controls the lock motor to be started to drive the lock to be unlocked first, then delays for t, and then controls the lifting motor to be started to drive the window to be opened; the left and right sides of the sliding block are provided with coil spring connecting structures, the coil spring connecting structure comprises mounting holes and mounting protrusions distributed in an upper and lower interval, the end of each coil spring is provided with a corresponding through hole, so that one of the through holes can be sleeved on the mounting protrusion, and the other through hole is opposite to the mounting hole and fixedly connected with the sliding block through a screw.

2. The folding window of claim 1, wherein The lifting motor comprises a motor body and an output gear box fixedly connected with the motor body, the output gear box is provided with a first output gear and a second output gear meshing with each other, the output end of the motor body is in transmission connection with the first output gear, the shaft center of the second output gear is provided with a connecting through hole, the transmission shaft is inserted into the connecting through hole and the two ends thereof are respectively out of the connecting through hole, the two racks are vertically fixedly connected on the two side walls of the window frame, the two gears are sleeved on the transmission shaft, and the transmission shaft and the connecting through hole and the transmission shaft and the two gears cannot relatively rotate.

3. The folding window of claim 1 wherein, The sliding block is provided with an axle hole penetrating the front and rear end faces of the sliding block, a bearing is fixedly installed in the axle hole, and the insertion part is inserted into the bearing to be rotatably inserted with the sliding block.

4. The folding window of claim 1 wherein, The protruding frame is externally fixedly provided with a shell, and the driving mechanism is hiddenly accommodated in the shell.

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