A sash opening and closing mechanism
By using a single guide rail structure and a limit swing arm linkage system, the problems of high window sash running resistance and high processing difficulty in the traditional double guide rail structure of lifting windows are solved, realizing smooth opening and closing of window sashes and reducing the width of window frames, thus improving ease of use and processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING WATE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-24
AI Technical Summary
The traditional double-rail structure of lift windows increases the resistance of the window sash operation, makes it more difficult to manufacture, and increases the thickness of the window frame, requiring precise parallelism and spacing of the rails.
The single-rail structure is adopted, and the load-bearing block is driven by the drive motor, gearbox and chain to realize the up and down movement of the opening sash. Combined with the linkage of the limit swing arm, vertical slider and telescopic block, the opening and closing of the opening sash can be realized smoothly, reducing the width of the window frame and reducing the processing difficulty.
It enables smooth up-and-down movement of the opening sash, reduces the width of the window frame and lowers the processing difficulty, thereby improving ease of use and comfort.
Smart Images
Figure CN224549913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of window technology, specifically to a lifting window opening and closing mechanism. Background Technology
[0002] Electric lift windows are used in building interior spaces. They are controlled by an electric motor to raise and lower the window, allowing users to easily control the opening and closing of the window by pressing a switch or using a remote control. This design makes opening and closing windows more convenient, eliminating the need to manually turn window handles or pull curtains. Electric lift windows typically use electric motors or other electric devices to achieve automated operation, improving user comfort and convenience.
[0003] In the design of traditional lift-and-fold window, a double guide rail structure is usually used to provide vertical constraints on the movable sash and prevent the sash from tipping over. However, due to the limitation of the opening and closing distance of the movable sash, the upper and lower guide rails need to be staggered, which increases the required thickness of the side frame. At the same time, the upper and lower guide rails not only need to be absolutely parallel and have precise spacing, but any slight vertical deviation, horizontal offset or spacing error will increase the resistance of the window sash operation and cause the window sash to twist and deform. The guide rail is difficult to process. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a lifting window opening and closing mechanism, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A lifting window opening and closing mechanism includes a window frame, an opening sash, a transmission mechanism, and several opening and closing mechanisms. The window frame includes a top frame, side frames, and a horizontal stile. A vertical slide rail is provided on the side frame. The opening and closing system includes a sash connecting block, a limiting swing arm, and a vertical slider. The vertical slider is slidably mounted on the vertical slide rail. The sash connecting block is fixed to the side of the opening sash. The two ends of the limiting swing arm are respectively hinged to the sash connecting block and the vertical slider.
[0009] Preferably, the opening and closing system further includes a translation rod, a linkage rod, and a telescopic block. The vertical slider has a sliding cavity inside, and the inner wall of the sliding cavity is provided with a translation guide rail. The translation rod is slidably mounted on the translation guide rail. The inner wall of the sliding cavity has a horizontal sliding hole. The telescopic block is slidably inserted into the horizontal sliding hole. The top of the translation rod has an inclined guide groove on the side facing the telescopic block, and the telescopic block has an inclined guide block on the side facing the translation rod. The inclined guide block is slidably inserted into the inclined guide groove. The other side of the telescopic block abuts against the inner wall of the vertical slide. The two ends of the linkage rod are respectively hinged to the translation rod and the limiting swing arm.
[0010] Preferably, the end of the limiting arm facing the vertical slider is provided with a pivot shaft, the pivot shaft is hinged to the lower side of the sliding cavity, a displacement groove is provided on one side of the limiting arm, and the lower end of the linkage rod is hinged in the displacement groove.
[0011] Preferably, a limiting block is provided at the top of the vertical slide, and when the vertical slider abuts against the limiting block, a receiving cavity is provided on the inner wall of the vertical slide corresponding to the position of the telescopic block.
[0012] Preferably, the transmission system includes a drive motor, a gearbox, a chain, and a load-bearing block. The drive motor and gearbox are fixed inside the upper frame. An internal gear is provided inside the gearbox and connected to the output end of the drive motor. The chain meshes with the internal gear. The load-bearing block is connected to one end of the chain. A load-bearing rod is fixed to the side of the load-bearing block facing the opening fan. A limit groove is provided on the lower side of the side frame. The load-bearing rod slides through the limit groove and is fixed to the side of the opening fan.
[0013] Preferably, the limiting slide groove includes an interlocking part and a sliding part that are interconnected from top to bottom. The interlocking part is set in an arc shape, and the radius of the interlocking part is equal to that of the limiting swing arm. The sliding part extends vertically downward from the interlocking part.
[0014] (III) Beneficial Effects
[0015] This utility model provides a lifting window opening and closing mechanism. It has the following beneficial effects:
[0016] 1. In this utility model, the drive motor drives the gear to rotate, which in turn drives the chain and the load-bearing block to move the opening fan up and down. During the movement, the opening fan, under the guidance of gravity and the limiting slide groove, will pull the limiting swing arm to rotate, thereby pushing the telescopic block to slide horizontally, so that the swing arm and the slider maintain a fixed angle, allowing the opening fan to move smoothly downward. Through the above technical solution, the opening fan can be opened and closed smoothly with a single guide rail. Compared with the traditional double guide rail structure, the width of the window frame can be reduced and the processing difficulty is lower. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a lifting window opening and closing mechanism according to the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of the lift window in the closed state in this utility model;
[0019] Figure 3 This is a structural schematic diagram of the lifting window in the open state of this utility model;
[0020] Figure 4 This is a schematic diagram of the opening and closing mechanism in this utility model. Figure 1 ;
[0021] Figure 5 This is a schematic diagram of the opening and closing mechanism in this utility model. Figure 2 ;
[0022] Figure 6 This is a schematic diagram of the side frame structure in this utility model.
[0023] In the diagram: 1. Top frame; 2. Side frame; 3. Horizontal central stile; 4. Opening fan; 5. Limiting slide groove; 51. Misalignment part; 52. Sliding part; 6. Limiting block; 7. Receiving cavity; 8. Drive motor; 9. Gearbox; 10. Load-bearing block; 11. Load-bearing rod; 12. Fan connecting block; 13. Limiting swing arm; 14. Vertical slider; 15. Translation rod; 16. Linkage rod; 17. Telescopic block; 18. Vertical slide rail; 19. Translation guide rail; 20. Pivot shaft; 21. Displacement groove; 22. Inclined guide groove; 23. Inclined guide block; 24. Chain. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] This utility model embodiment provides a lifting window opening and closing mechanism, such as... Figure 1 As shown, it includes a window frame, an opening sash 4, a transmission mechanism, and several opening and closing mechanisms. The window frame includes an upper frame 1, side frames 2, and a horizontal central stile 3.
[0026] like Figure 6 As shown, a limiting groove 5 is provided on the lower side of the side frame 2. The limiting groove 5 includes an interlocking part 51 and a sliding part 52 that are connected from top to bottom. The interlocking part 51 is arc-shaped, and the sliding part 52 extends vertically downward from the interlocking part 51. A vertical slide 18 is provided on the side frame 2. The vertical slide 18 is located on the left side of the limiting groove 5. A limiting block 6 is provided at the top of the vertical slide 18. A plurality of receiving cavities 7 are provided on the inner wall of the vertical slide 18.
[0027] like Figure 1-2 As shown, the transmission system includes a drive motor 8, a gearbox 9, a chain 24, and a load-bearing block 10. The drive motor 8 and the gearbox 9 are fixed inside the upper frame 1. An internal gear is provided inside the gearbox 9 and is connected to the output end of the drive motor 8. The chain 24 meshes with the internal gear. The load-bearing block 10 is connected to one end of the chain 24. A load-bearing rod 11 is fixed to the side of the load-bearing block 10 facing the opening fan 4. The load-bearing rod 11 slides through the limiting groove 5 and is fixed to the side of the opening fan 4. The drive motor 8 drives the internal gear to rotate, which in turn drives the end of the chain 24 connected to the load-bearing block 10 to move up and down, thereby realizing the guiding effect of the opening fan 4 in the limiting groove 5 and realizing the up and down staggered lifting and lowering of the opening fan 4.
[0028] like Figure 2-5 As shown, the opening and closing system includes a fan connecting block 12, a limiting swing arm 13, a vertical slider 14, a translation rod 15, a linkage rod 16, and a telescopic block 17. The vertical slider 14 is slidably installed on the vertical slide rail 18. The fan connecting block 12 is fixed on the side of the opening fan 4. The two ends of the limiting swing arm 13 are respectively hinged to the fan connecting block 12 and the vertical slider 14. The length of the limiting swing arm 13 is equal to the radius of the misalignment part 51. During the up-and-down movement of the opening fan 4 along the limiting slide rail 5, under the action of the gravity of the opening fan 4, the vertical slider 14 slides up and down in the vertical slide rail. The forward and backward position of the opening fan 4 during the sliding process in the limiting slide rail 5 pulls the limiting swing arm 13 to rotate.
[0029] The vertical slider 14 has a sliding cavity inside, and the inner wall of the sliding cavity is provided with a translation guide rail 19. The translation rod 15 is slidably mounted on the translation guide rail 19. The end of the limiting arm 13 facing the vertical slider 14 is provided with a pivot shaft 20. The pivot shaft 20 is hinged to the lower side of the sliding cavity. One side of the limiting arm 13 is provided with a displacement groove 21. The lower end of the linkage rod 16 is hinged in the displacement groove 21, and the upper end of the linkage rod 16 is hinged to the lower end of the translation rod 15. By rotating the limiting arm 13, the hinge position of the linkage rod 16 and the limiting arm 13 is eccentrically rotated with respect to the pivot shaft 20, so that the translation rod 15 slides up and down in the translation guide rail 19.
[0030] The inner wall of the sliding cavity is provided with a horizontal sliding hole. The telescopic block 17 is slidably inserted into the horizontal sliding hole. The top of the translation rod 15 is provided with an inclined guide groove 22 on the side facing the telescopic block 17. The inclined guide groove 22 is inclined upward from front to back. The telescopic block 17 is provided with an inclined guide block 23 on the side facing the translation rod 15. The inclined guide block 23 is slidably inserted into the inclined guide groove 22. The other side of the telescopic block 17 abuts against the inner wall of the vertical slide 18. When the vertical slider 14 abuts against the vertical slide 14, the height of the telescopic block 17 corresponds to the height of the receiving cavity 7. The opening fan 4 continues to rise, but the telescopic block 17 is slidably inserted into the receiving cavity 7. During the sliding up and down movement of the translation rod 15, the inclined guide block 23 is pushed by the side wall of the inclined guide groove 22, which allows the telescopic block 17 to slide in and out of the horizontal sliding hole. This enables the vertical slider 14 to be locked and slid within the vertical slide 18.
[0031] Working principle:
[0032] When the opening fan 4 is closed, the drive motor 8 rotates, causing the internal gear to rotate, which in turn causes the end of the chain 24 connected to the load-bearing block 10 to move upward, thus pulling the opening fan 4 upward. During this process, since the opening fan 4 drives one end of the limiting arm 13 to move upward, it drives the vertical slider 14 connected to the other end of the arm 13 to move upward together in the vertical slide. At this time, the limiting arm 13 is subjected to a force biased towards the vertical slider 14, so the angle between the limiting arm 13 and the vertical slider 14 tends to decrease. If the angle decreases, the opening fan 4 will also move horizontally to the side of the limiting slider, causing the opening fan 4 to come into contact with the mullion 3 and rub against it, damaging the window frame. However, since the limiting arm 13 will drive the translation rod 15 to slide upward through the linkage rod 16 when the angle decreases, the side wall of the inclined guide groove 22 of the translation rod 15 will squeeze the inclined guide block 23 of the telescopic block 17, causing the telescopic block to... 17 slides out in the horizontal sliding hole, but at this time the telescopic block 17 is pressed against the inner wall of the vertical slide, so that the translation rod 15 cannot continue to move upward, causing the limiting arm 13 to be unable to continue to rotate upward, so that the limiting arm 13 and the vertical slider 14 maintain a fixed angle. When the vertical slider 14 slides to the point of contact with the limiting block 6, the drive motor 8 continues to run and pulls the opening fan 4 upward. The telescopic block 17 is facing the receiving cavity 7, so that the telescopic block 17 can continue to slide outward. The drive motor 8 continues to run and pulls the opening fan 4 upward, so that the angle between the limiting arm 13 and the slider becomes smaller. During the process of the angle between the limiting arm 13 and the vertical slider 14 becoming smaller, since the opening fan 4 is connected to one end of the limiting arm 13, the opening fan 4 will run obliquely towards the vertical slider 14. That is, at this time the load-bearing rod 11 slides to the top in the misaligned part 51 of the limiting slide groove 5, so that the opening fan 4 closes upward and forward.
[0033] When the opening fan 4 is opened, the motor 8 runs in reverse, and the opening fan 4 moves downward under the action of gravity. At this time, part of the telescopic block 17 has already extended into the receiving cavity 7 and cannot move downward, thus preventing the slider from sliding downward. However, the opening fan 4 tends to move downward due to gravity. At this time, the end of the limiting arm 13 connected to the vertical slider 14 cannot move. Since the opening fan 4 is under downward force at one end, the limiting arm 13 will rotate around the pivot axis 20 of the vertical slider 14, causing one end of the fan connecting block 12 to move diagonally downward away from the vertical slider 14 and drive the opening fan 4. During the movement, the limiting arm 13 pulls the translation rod 15 downward through the linkage rod 16. When the translation rod 15 slides downward, the side wall of the inclined guide groove 22 will press against the inclined guide block 23 of the telescopic block 17, causing the telescopic block 17 to retract in the horizontal sliding hole. When the telescopic block 17 is completely retracted out of the receiving cavity 7, the vertical slider 14 can slide downward under the drive of the limiting arm 13 and its own gravity. At this time, the telescopic block 17 will also press against the inner wall of the vertical slide, so that the limiting arm 13 and the vertical slider 14 form a fixed angle, allowing the opening fan 4 to run smoothly downward.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lifting window opening and closing mechanism, characterized in that: The device includes a window frame, an operable sash, a transmission mechanism, and several opening and closing mechanisms. The window frame includes a top frame, side frames, and a horizontal stile. A vertical slide rail is provided on the side frame. The transmission mechanism includes a sash connecting block, a limiting arm, and a vertical slider. The vertical slider is slidably mounted on the vertical slide rail. The sash connecting block is fixed to the side of the operable sash. The two ends of the limiting arm are respectively hinged to the sash connecting block and the vertical slider.
2. The lifting window opening and closing mechanism according to claim 1, characterized in that: The transmission mechanism further includes a translation rod, a linkage rod, and a telescopic block. The vertical slider has a sliding cavity inside, and a translation guide rail is provided on the inner wall of the sliding cavity. The translation rod is slidably mounted on the translation guide rail. A horizontal sliding hole is opened on the inner wall of the sliding cavity. The telescopic block is slidably inserted into the horizontal sliding hole. An inclined guide groove is provided on the top of the translation rod facing the telescopic block. An inclined guide block is provided on the side of the telescopic block facing the translation rod. The inclined guide block is slidably inserted into the inclined guide groove. The other side of the telescopic block abuts against the inner wall of the vertical slide. The two ends of the linkage rod are respectively hinged to the translation rod and the limiting swing arm.
3. The lifting window opening and closing mechanism according to claim 2, characterized in that: The limiting arm has a pivot shaft at one end facing the vertical slider. The pivot shaft is hinged to the lower side of the sliding cavity. A displacement groove is provided on one side of the limiting arm, and the lower end of the linkage rod is hinged in the displacement groove.
4. The lifting window opening and closing mechanism according to claim 3, characterized in that: The top of the vertical slide is provided with a limit block. When the vertical slider abuts against the limit block, the inner wall of the vertical slide is provided with a receiving cavity corresponding to the position of the telescopic block.
5. The lifting window opening and closing mechanism according to claim 4, characterized in that: The transmission mechanism includes a drive motor, a gearbox, a chain, and a load-bearing block. The drive motor and gearbox are fixed inside the upper frame. An internal gear is provided inside the gearbox and connected to the output end of the drive motor. The chain meshes with the internal gear. The load-bearing block is connected to one end of the chain. A load-bearing rod is fixed to the side of the load-bearing block facing the opening fan. A limit groove is provided on the lower side of the side frame. The load-bearing rod slides through the limit groove and is fixed to the side of the opening fan.
6. The lifting window opening and closing mechanism according to claim 5, characterized in that: The limiting slide groove includes an interlocking part and a sliding part that are interconnected from top to bottom. The interlocking part is set in an arc shape and the radius of the interlocking part is equal to that of the limiting swing arm. The sliding part extends vertically downward from the interlocking part.