Convenient window opening mechanism for casement window

Abstract

The application relates to a convenient window opening mechanism for casement windows, which can realize the linkage opening and closing of one or more casement windows arranged in longitudinal and transverse arrays in a neat and uniform manner by rotating a hand crank under the casement window by workers, and specifically relates to a hand crank which drives a window opening assembly, a transverse linkage mechanism and a longitudinal linkage mechanism through a driving assembly to realize the linkage opening and closing of multiple groups of casement windows arranged longitudinally and transversely, improves the opening and closing pipe efficiency and emergency response efficiency, and simultaneously reduces the labor of workers.

Description

Technical Field

[0001] This invention relates to the field of corridor windows, and more specifically to a convenient window opening mechanism for casement windows. Background Technology

[0002] Currently, office buildings, airports, factory workshops, and train station catering departments all have ventilation windows or skylights installed at relatively high positions. These are windows in public areas used for ventilation and lighting. Unlike residential windows, these windows are much higher off the ground, and most are multiple windows installed side by side. When property staff need to open or close these casement windows, they have to open and close each window one by one. This causes staff to repeatedly expend physical energy and affect work efficiency. In addition, when it is necessary to close windows urgently before a storm, the lack of rapid emergency response efficiency makes opening windows inconvenient. At the same time, climbing to open and close windows also poses certain dangers. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the shortcomings of the prior art.

[0004] A convenient window opening mechanism for casement windows is provided.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a convenient window opening mechanism for casement windows, comprising a plurality of casement windows mounted on a wall, a window opening assembly, and a drive assembly, characterized in that: the window opening assembly includes a sliding seat mounted on the casement window sash and a drive seat mounted on the casement window frame or wall; the sliding seat has a sliding groove arranged parallel to the casement window sash; the drive seat has a drive arm and a driven worm gear; one end of the drive arm corresponding to the driven worm gear has a driven worm wheel meshing with the driven worm gear, and one end of the drive arm corresponding to the sliding seat has a drive wheel; the driven worm wheel is hinged to the drive seat via a positioning shaft; one end of the drive wheel is hinged to the drive arm, and the other end is located in the sliding groove; one end of the drive assembly is connected to a hand crank or a drive motor, and the other end is connected to the driven worm gear, and the driven worm gear drives the drive arm to swing around the positioning shaft as a fulcrum, thereby driving the window sash to open and close.

[0006] Using the above technical solution, the casement window under this structure can be single or multiple. Only a hand crank or drive motor needs to be installed on each casement window. When a drive motor is installed, the worker can directly drive the worm gear to rotate via remote control. When a hand crank is used, it is installed below the window sash, allowing the worker to simply rotate it from below the wall. The hand crank drives the driven worm gear to rotate via a drive assembly. In both manual and electric methods, after the driven worm gear rotates, it drives the drive arm to swing around the positioning shaft as a fulcrum, thereby pushing or pulling the sliding seat at the other end to open or close the window sash. This enables remote opening and closing of the window sash from below, improving the convenience of opening and closing the window, avoiding the danger of needing a chair or other objects to open the window, and improving emergency response efficiency.

[0007] The aforementioned convenient window opening mechanism for a casement window can be further configured as follows: the driving assembly includes several gearboxes disposed on the casement window frame or wall, and a driving helical gear and a driving helical gear meshing with each other disposed within the gearboxes. The driving helical gear is connected to the driven worm gear through a first linkage rod, and the driving helical gear is connected to a hand crank. The end of the hand crank is disposed below the casement window and is used to transmit the driving force generated by the rotation of the hand crank to the driven worm gear through the driving helical gear.

[0008] By adopting the above technical solution, the hand crank below the casement window is rotated to drive the helical gear rod to rotate, which in turn drives the active helical gear rod to rotate. The driving force generated by the rotation of the hand crank is then transmitted to the driven worm gear through the active helical gear rod and the first linkage rod, thereby realizing remote opening and closing of the window sash from below and improving the convenience of opening and closing the window.

[0009] The aforementioned convenient window opening mechanism for a casement window can be further configured such that: the hand crank includes a drive unit, a steering unit, and a hand cranking unit; the drive unit is connected to a drive helical gear rod via a universal coupling; one end of the steering unit is hinged to the drive unit, and the other end is hinged to the hand cranking unit.

[0010] By adopting the above technical solution, a steering rod and a hand crank are set at the end of the drive rod. The drive rod is turned by the steering rod and then force is applied by the hand crank, changing the direction of force and making it more convenient to open and close the window sash by hand. By setting a universal coupling, the drive rod can drive the drive helical gear rod to rotate through the universal coupling. This allows the window opener to accurately transmit kinetic energy even when used in scenarios with uneven walls. At the same time, the universal coupling allows the force-applying end to not be close to the wall, making it more convenient for users.

[0011] The aforementioned convenient window opening mechanism for a casement window can be further configured as follows: the drive seat is provided with a drive cover, and a receiving cavity for accommodating the driven worm gear and the driven worm is formed between the drive seat and the drive cover. The receiving cavity is provided with a swing groove for the drive arm to swing at one end, and a through hole is provided at one end corresponding to the driven worm for the first linkage rod or the driven worm to pass through.

[0012] By adopting the above technical solution, a drive cover is set to form a cavity between the drive seat and the drive cover for accommodating the driven worm wheel and the driven worm, which facilitates the installation of the driven worm wheel and the driven worm and prevents external dust and rainwater from entering the cavity and affecting the operation of the drive seat. By setting a swing groove, the swing range of the drive arm is limited, that is, the sliding length of the drive groove in the sliding groove is limited to prevent the drive wheel from coming off. At the same time, a through hole is opened so that the first linkage rod or the driven worm can pass through the drive seat to complete the linkage.

[0013] The aforementioned convenient window opening mechanism for a casement window can be further configured such that: the positioning shaft is fixedly mounted on the drive seat, the driven worm gear is connected to the positioning shaft via a bearing, a notch is provided on the surface of the driven worm gear, and the drive arm is installed in the notch via fasteners.

[0014] By adopting the above technical solution, a notch is set on the driven worm gear to prevent the drive arm from increasing the thickness of the driven worm gear when it is connected to the driven worm gear by fasteners, which would otherwise result in an excessively large drive seat that would affect aesthetics. At the same time, the drive arm can be stably installed in the notch and linked with the driven worm gear. By setting a bearing, the friction between the driven worm gear and the positioning shaft is reduced, thereby improving the power transmission and noise reduction effect of the casement window opening mechanism.

[0015] The aforementioned convenient window opening mechanism for a casement window can be further configured such that: a horizontal linkage mechanism is provided between the horizontally adjacent casement windows, the horizontal linkage mechanism including a second linkage rod disposed between two horizontally adjacent window opening components, the two ends of the second linkage rod being respectively connected to a horizontally adjacent driven worm gear.

[0016] With the above technical solution, since window opening components are installed on horizontally adjacent casement windows, the power transmission of the drive component can be simultaneously transmitted to the other driven worm gears to achieve linkage. Both ends of the driven worm gear can be connected to a second linkage rod, which allows users to directly realize the linkage opening and closing of multiple horizontally set casement windows through the second linkage rod, thereby improving the efficiency of the opening and closing tubes and the emergency response efficiency, while reducing the labor force of the staff.

[0017] The aforementioned convenient window opening mechanism for a casement window can be further configured as follows: a longitudinal linkage mechanism is provided between the longitudinally adjacent casement windows. The longitudinal linkage mechanism includes a linkage seat provided on the window sash of the longitudinally adjacent casement windows and a linkage wheel provided at one end of the linkage seat corresponding to the drive arm. The linkage seat is provided with a linkage groove arranged parallel to the window sash of the casement window. The linkage groove and the sliding groove are arranged longitudinally opposite to each other. The linkage wheel and the drive wheel are arranged longitudinally corresponding to each other. When the drive arm drives the window sash to open and close with the positioning shaft as the fulcrum, the linkage wheel slides along the linkage groove, thereby driving the longitudinally adjacent casement windows to open and close.

[0018] Using the above technical solutions, one or two sets of window opening components can be added to longitudinally adjacent casement windows. In the case of one set, the drive component directly drives the driven worm gear to rotate, thereby linking the drive arm to swing. During the swing, due to the longitudinally opposite linkage wheel and drive wheel on the drive arm, the drive arm opens and closes the two longitudinally linked casement windows simultaneously. This structure significantly reduces costs. Alternatively, window opening components can be added directly to each casement window, and then the drive component drives two sets of window opening components to open or close the longitudinally adjacent casement windows. The advantage of this structure is smooth operation and strong load-bearing capacity. In the case of two sets, the first two structures are combined. While adding window opening components to each casement window, another set is added at the adjacent location, so that the window sash is driven by window opening components at both the top and bottom. The advantage of this structure is that it can drive some extra-large casement windows, operates stably, and has excellent load-bearing capacity. All three structures can realize the linkage opening and closing of multiple sets of longitudinally linked casement windows, adapt to the distribution structure of longitudinally adjacent window sashes, and improve the adaptability of the linkage opening and closing structure.

[0019] The aforementioned convenient window opening mechanism for a casement window can be further configured such that: both ends of the sliding seat and the linkage seat are provided with limiting holes, and the driving wheel and the linkage wheel are prevented from disengaging from the corresponding sliding groove and linkage groove through the limiting holes; one end of the sliding seat and the linkage seat corresponding to the driving arm is provided with a limiting groove; the driving wheel and the linkage wheel are both connected to the driving arm through a hinge shaft, and the outer diameter of the driving wheel and the linkage wheel is larger than the inner diameter of the limiting groove.

[0020] By adopting the above technical solution, limiting holes are provided at both ends of the sliding seat and the linkage seat to prevent the drive wheel and the linkage wheel from disengaging in the horizontal position. Limiting grooves and hinge shafts are provided to prevent the drive wheel and the linkage wheel from disengaging in the axial position, thereby improving the stability of the linkage opening and closing structure.

[0021] The aforementioned convenient window opening mechanism for a casement window can be further configured as follows: the number of vertical rows of the casement window is n, the number of gearboxes is ≥ n, the vertically adjacent gearboxes are connected by a third linkage rod, both ends of the third linkage rod are connected to the driving helical gear rods in the adjacent gearboxes, and the second and third linkage rods are connected to the driven worm gear and the driving helical gear rod by a plug-in structure.

[0022] When the casement windows are arranged in a longitudinally adjacent manner, the drive assembly also needs to be equipped with a gearbox and a third linkage rod in the longitudinal direction. For example, when the number of longitudinal rows of casement windows is 3, the number of gearboxes must also be greater than 3. The longitudinal window sashes are then linked by the third linkage rod to each independent gearbox. The second and third linkage rods are connected to the driven worm gear and the driving helical gear rod through a plug-in structure, which facilitates the disassembly and assembly of the window structure. The plug-in structure can be triangular, polygonal, star-shaped, etc., but cannot be a cylindrical or spherical structure that can be rotated independently.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0026] Figure 3 for Figure 2 Enlarged view of point A.

[0027] Figure 4 for Figure 2 Enlarged view of point B.

[0028] Figure 5 This is a schematic diagram of the connection between the hand crank and the gearbox in Embodiment 1 of the present invention.

[0029] Figure 6 This is a bottom view of Embodiment 1 of the present invention in the open state.

[0030] Figure 7 This is a three-dimensional schematic diagram of Embodiment 2 of the present invention.

[0031] Figure 8 This is a three-dimensional schematic diagram of Embodiment 3 of the present invention.

[0032] Figure 9 This is a three-dimensional schematic diagram of Embodiment 4 of the present invention. Detailed Implementation

[0033] Example 1:

[0034] See Figures 1-6As shown, a convenient window opening mechanism for a casement window includes a casement window 1 mounted on a wall a, an opening assembly, and a driving assembly. The opening assembly includes a sliding seat 2 mounted on the casement window sash 11 and a driving seat 3 mounted on the casement window frame 12. The sliding seat 2 has a sliding groove 21 parallel to the casement window sash 11. The driving seat 3 has a driving arm 31 and a driven worm gear 32. One end of the driving arm 31 corresponding to the driven worm gear 32 has a driven worm wheel 33 that meshes with the driven worm gear 32, and one end corresponding to the sliding seat 2 has a driving wheel 34. The driven worm gear 33 is hinged to the drive seat 3 via the positioning shaft 35. One end of the drive wheel 34 is hinged to the drive arm 31, and the other end is disposed in the sliding groove 21. One end of the drive assembly is connected to the hand crank 4, and the other end is connected to the driven worm gear 32. The driven worm gear 32 drives the drive arm 31 to swing around the positioning shaft 35 as the fulcrum, thereby driving the window sash 11 to open and close. The drive assembly includes a gearbox 5 disposed on the wall a and a driving helical gear 51 and a driving helical gear 52 meshing with each other disposed in the gearbox 5. The driving helical gear 51 is connected to the first coupling. The moving rod 53 is connected to the driven worm gear 32. The driving helical gear rod 52 is connected to the hand crank 4. The end of the hand crank 4 is located below the casement window 1. It is used to transmit the driving force generated by the rotation of the hand crank 4 to the driven worm gear 32 through the driving helical gear rod 51. The hand crank 4 includes a driving part 41, a steering part 42, and a hand crank part 43. The driving part 41 is connected to the driving helical gear rod 52 through a universal coupling 44. One end of the steering part 42 is hinged to the driving part 41, and the other end is hinged to the hand crank part 43. The driving seat 3 is provided with a driving cover 36. The driving seat 3 and the driving... A receiving cavity 361 is formed between the cover 36 to accommodate the driven worm gear 33 and the driven worm 32. The receiving cavity 361 is provided with a swing groove 362 for the drive arm 31 to swing at one end, and a through hole 363 is provided at one end for the first linkage rod 53 or the driven worm 32 to pass through. The positioning shaft 35 is fixedly mounted on the drive seat 3. The driven worm gear 33 is connected to the positioning shaft 35 through the bearing 37. A notch 331 is provided on the surface of the driven worm gear 33. The drive arm 31 is installed in the notch 331 by fasteners 38.

[0035] Example 2:

[0036] like Figure 7As shown, a convenient window opening mechanism for a casement window includes at least two horizontally adjacent casement windows 1 installed on a wall a. A horizontal linkage mechanism is provided between the horizontally adjacent casement windows 1. The horizontal linkage mechanism includes a second linkage rod 6 installed between two horizontally adjacent window opening components. The two ends of the second linkage rod 6 are respectively connected to horizontally adjacent driven worm gears 32. When a casement window 1 is driven to rotate by a hand crank 4, the drive helical gear rod 52 is linked to the active helical gear rod 51. The active helical gear rod 51 drives multiple horizontally arranged driven worm gears 32 to rotate through a first linkage rod 53. The driven worm gears 32 are linked to the driven worm wheel 33 to rotate, thereby driving the window sash to open and close in a coordinated manner, thus realizing the coordinated opening and closing of multiple horizontally arranged casement windows 1.

[0037] Example 3:

[0038] like Figure 8 As shown, a convenient window opening mechanism for a casement window includes at least two longitudinally adjacent casement windows 1 mounted on wall a. A longitudinal linkage mechanism is provided between the longitudinally adjacent casement windows 1. The longitudinal linkage mechanism includes a linkage seat 7 mounted on the longitudinally adjacent casement window sashes 11 and a linkage wheel (not shown) mounted on a drive arm 31 at one end corresponding to the linkage seat 7. The linkage seat 7 has a linkage groove 71 arranged parallel to the casement window sashes 11. The linkage groove 71 is longitudinally opposite to the sliding groove 21. The linkage wheel is longitudinally corresponding to the drive wheel 34. When the drive arm 34 is activated... The boom 31 drives the window sash to open and close with the positioning shaft 35 as the fulcrum, while the linkage wheel slides along the linkage groove 21, thereby driving the longitudinally adjacent casement window 1 to open and close. Both ends of the sliding seat 2 and the linkage seat 7 are provided with limiting holes 72, and the limiting holes 72 prevent the drive wheel 34 and the linkage wheel from disengaging from the corresponding sliding groove 21 and linkage groove 71. The sliding seat 2 and the linkage seat are provided with limiting grooves 73 at one end corresponding to the drive arm 31. The drive wheel 34 and the linkage wheel are both connected to the drive arm 31 through the hinge shaft 39, and the outer diameter of the drive wheel 34 and the linkage wheel is larger than the inner diameter of the limiting groove 73.

[0039] Example 4:

[0040] like Figure 9 As shown, a convenient window opening mechanism for a casement window includes at least three casement windows 1 installed on a wall a, wherein each casement window 1 is adjacent to at least one other casement window 1 in both the longitudinal and transverse positions. The casement windows 1 have 2 rows in the longitudinal direction and 3 columns in the transverse direction. The number of gearboxes is 3. The longitudinally adjacent gearboxes 3 are connected by a third linkage rod 8. Both ends of the third linkage rod 8 are connected to the driving helical gear rods 52 in the adjacent gearboxes 3. The second linkage rod 6, the third linkage rod 8, the driven worm gear 32, and the driving helical gear rod 52 are all connected to each other through polygonal holes and polygonal pins.

Claims

1. A convenient window opening mechanism for casement windows, comprising a plurality of casement windows mounted on a wall, a window opening assembly, and a drive assembly, characterized in that: The window opening assembly includes a sliding seat mounted on the casement window sash and a drive seat mounted on the casement window frame or wall. The sliding seat has a sliding groove parallel to the casement window sash. The drive seat has a drive arm and a driven worm gear. One end of the drive arm corresponding to the driven worm gear has a driven worm wheel meshing with it, and one end of the drive arm corresponding to the sliding seat has a drive wheel. The driven worm wheel is hinged to the drive seat via a positioning shaft. One end of the drive wheel is hinged to the drive arm, and the other end is located within the sliding groove. The drive assembly is connected to a hand crank or drive motor at one end and to a driven worm gear at the other end. The driven worm gear drives the drive arm to swing around the positioning shaft as a fulcrum, thereby driving the window sash to open and close. The drive seat has a drive cover, and a receiving cavity is formed between the drive seat and the drive cover to accommodate the driven worm gear and the driven worm. The receiving cavity has a swing groove at one end corresponding to the drive arm for the drive arm to swing, and a through hole is provided at one end corresponding to the driven worm gear for the first linkage rod or the driven worm gear to pass through. The positioning shaft is fixedly installed... The driven worm gear, mounted on a drive seat, is connected to a positioning shaft via a bearing. A notch is formed on the surface of the driven worm gear, and the drive arm is installed within the notch using fasteners. A longitudinal linkage mechanism is provided between longitudinally adjacent casement windows. This mechanism includes a linkage seat on the adjacent casement window sash and a linkage wheel at one end of the drive arm corresponding to the linkage seat. The linkage seat has a linkage groove parallel to the casement window sash, with the linkage groove and sliding groove arranged longitudinally opposite each other. The linkage wheel and drive wheel are arranged longitudinally corresponding to each other. When the drive arm drives the window sash to open and close using the positioning shaft as a fulcrum, the linkage wheel slides along the linkage groove, thereby driving the longitudinally adjacent casement windows to open and close. Limiting holes are provided at both ends of the sliding seat and linkage seat to prevent the drive wheel and linkage wheel from disengaging from their corresponding sliding and linkage grooves. Limiting grooves are formed at one end of the sliding seat and linkage seat corresponding to the drive arm. Both the drive wheel and linkage wheel are connected to the drive arm via hinge shafts, and the outer diameter of both the drive wheel and linkage wheel is larger than the inner diameter of the limiting groove.

2. The convenient window opening mechanism for a casement window according to claim 1, characterized in that: The drive assembly includes several gearboxes mounted on the casement window frame or wall, and a driving helical gear and a drive helical gear meshing with each other within the gearboxes. The driving helical gear is connected to the driven worm gear via a first linkage rod, and the drive helical gear is connected to a hand crank. The end of the hand crank is located below the casement window and is used to transmit the driving force generated by rotating the hand crank to the driven worm gear via the driving helical gear.

3. The convenient window opening mechanism for a casement window according to claim 2, characterized in that: The hand crank includes a drive unit, a steering unit, and a hand cranking unit. The drive unit is connected to a drive helical gear rod via a universal coupling. One end of the steering unit is hinged to the drive unit, and the other end is hinged to the hand cranking unit.

4. The convenient window opening mechanism for a casement window according to claim 2, characterized in that: A horizontal linkage mechanism is provided between horizontally adjacent casement windows. The horizontal linkage mechanism includes a second linkage rod disposed between two horizontally adjacent casement window components. The two ends of the second linkage rod are respectively connected to the horizontally adjacent driven worm gear.

5. A convenient window opening mechanism for a casement window according to claim 4, characterized in that: The number of vertical rows of the casement window is n, the number of gearboxes is ≥ n, and the gearboxes that are vertically adjacent are connected by a third linkage rod. Both ends of the third linkage rod are connected to the driving helical gear rods in the adjacent gearboxes. The second and third linkage rods are connected to the driven worm gear and the driving helical gear rod by a plug-in structure.

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