Anti-falling device for aluminum alloy door and window

Abstract

The utility model discloses an anti -drop device of aluminium alloy door and window, its characterized in that: anti -drop subassembly includes the pulley of sliding connection in guide groove, and the fixed block of rotation connection with pulley to be located in the through -hole of the two sides of the cavity, and the fixed block is slidingly connected in the through -hole, and is relative to the through -hole telescopic setting, the adjusting subassembly includes the screw rod of setting along the front -back direction, and the external thread of opposite direction is equipped with respectively in the both ends of screw rod, and the fixed block of two groups of anti -drop subassembly is respectively jacketed in the both ends of screw rod, and with screw rod transmission connection. Through setting anti -drop subassembly and adjusting subassembly, screw rod and fixed block transmission connection, pulley stretches into the inside of guide groove, and pulley slides along the direction of guide groove, improves the smoothness of push -and -pull, and is positioned to the lower part of casement, prevents the derailment of push -and -pull strength too big, in addition, adopts the design of two -way screw rod, and it is not easy to be affected by the environment, improves the adjustment accuracy of pulley stroke, makes the stress balance of the two sides of casement.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window structure technology, and in particular to an anti-fall-off device for aluminum alloy doors and windows. Background Technology

[0002] Sliding windows are a common type of window, typically consisting of a frame, sash, rollers, and tracks. The sash slides along the tracks in the frame via the rollers, allowing it to open and close. They offer advantages such as space-saving design, good ventilation, and a wide view. However, due to their sliding design, improper operation or other problems during use may cause the sash to derail.

[0003] Patent No. ZL 202221752327.0 discloses an anti-fall-off device for thermally insulated and energy-saving doors and windows. By incorporating an internal anti-fall-off device, it prevents excessive sliding and pushing forces from causing derailment, thus improving safety. Furthermore, a limiting device is installed at the upper end of the anti-fall-off device, and the distance between rollers A is adjusted by rotating a threaded rod, facilitating use with different T-shaped tracks. However, the aforementioned patent's solution converts the vertical force of the push block into the horizontal force of the squeeze block through the relative movement between the sliders, thereby simultaneously controlling the adjustment stroke of the two rollers A. This adjustment method suffers from susceptibility to environmental influences, poor adjustment accuracy, and is detrimental to the balanced force distribution on the two rollers A. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-fall-off device for aluminum alloy doors and windows.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anti-fall-off device for aluminum alloy doors and windows includes a U-shaped slide rail and a window sash slidably disposed inside the slide rail. The slide rail has horizontally extending guide grooves on its front and rear inner sides, and anti-fall-off components are respectively disposed in the two guide grooves. The window sash has a vertically extending cavity on its outer side, and an adjustment component is disposed within the cavity. Two sets of anti-fall-off components are symmetrically disposed at the front and rear ends of the adjustment component. The device is characterized by: The anti-detachment component includes a pulley slidably connected in the guide groove, a fixed block rotatably connected to the pulley, and through holes on the front and rear sides of the cavity. The fixed block is slidably connected in the through holes and is telescopically arranged relative to the through holes.

[0006] The adjustment assembly includes a screw arranged in the front-to-back direction, with external threads in opposite directions at both ends of the screw. The fixing blocks of the two sets of anti-detachment assemblies are respectively sleeved on both ends of the screw and are connected to the screw drive.

[0007] Preferably, the cavity is provided with ears symmetrically distributed at both ends of the screw, and the ears are provided with shaft holes that match the screw. The screw is inserted into the shaft holes and is rotatably connected to the shaft holes.

[0008] Preferably, a sleeve is coaxially fitted on the outside of the screw. The sleeve has a stepped structure, is inserted into the shaft hole, and abuts against the side wall of the lug. The screw is rotatably connected to the shaft hole through the sleeve.

[0009] Preferably, the fixing block includes a U-shaped clamping plate with its opening facing the guide groove and its inner side rotatably connected to the pulley. The upper and lower sides of the clamping plate are slidably connected to the through hole.

[0010] Preferably, the fixing block includes a threaded sleeve aligned with the screw axially, the threaded sleeve being matched with the screw and sleeved on the outside of the screw, one end of the threaded sleeve being connected to the clamping plate, and the other end of the threaded sleeve being connected to the screw drive.

[0011] Preferably, the through hole is provided with shock-absorbing plates on the upper and lower sides, the through hole is slidably connected to the fixed block through the shock-absorbing plates, and a rubber ring is sleeved on the outside of the pulley, the pulley is slidably connected to the guide groove through the rubber ring.

[0012] This utility model has the following beneficial effects: By setting up anti-detachment and adjustment components, the adjustment component is first installed in the cavity. Two sets of anti-detachment components are symmetrically arranged at both ends of the adjustment component, corresponding to the guide grooves on the front and rear inner sides of the slide rail. Then, the drive screw rotates, and the screw is connected to the fixed block through a transmission connection, driving the two fixed blocks away from each other. The fixed block is slidably connected to the through hole and extends outward from the through hole. The pulley extends into the guide groove and is slidably connected to the guide groove. When the window sash is pushed or pulled, the pulley slides along the direction of the guide groove, improving the smoothness of pushing and pulling, and at the same time limiting the lower part of the window sash to prevent derailment due to excessive pushing and pulling force. In addition, the bidirectional screw design, with the same screw driving the two fixed blocks to extend and retract in opposite directions, can ensure synchronization and stability, is not easily affected by the environment, improves the adjustment accuracy of the pulley stroke, and makes the force on the front and rear sides of the window sash balanced. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-fall-off device described in this utility model.

[0014] Figure 2 This is a schematic diagram of the state of the anti-fall-off device described in this utility model. Figure 1 .

[0015] Figure 3 This is a schematic diagram of the state of the anti-fall-off device described in this utility model. Figure 2 .

[0016] Figure 4 This is a schematic diagram of the assembly of the cavity described in this utility model.

[0017] Figure 5 This is an assembly diagram of the screw described in this utility model.

[0018] Attached diagram descriptions: 1. Slide rail; 2. Window sash; 3. Guide groove; 4. Cavity; 5. Pulley; 6. Through hole; 7. Screw; 8. Ear; 9. Shaft hole; 10. Sleeve; 11. Clamping plate; 12. Screw sleeve; 13. Shock-absorbing plate; 14. Rubber ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1 to 5 One embodiment provided by this utility model: An anti-fall-off device for aluminum alloy doors and windows includes a U-shaped slide rail 1 and a window sash 2 slidably disposed inside the slide rail 1. The slide rail 1 has horizontally extending guide grooves 3 on its front and rear inner sides, and anti-fall-off components are respectively disposed in the two guide grooves 3. The window sash 2 has a vertically extending cavity 4 on its outer side, and an adjustment component is disposed in the cavity 4. Two sets of anti-fall-off components are symmetrically disposed at the front and rear ends of the adjustment component. The anti-fall-off component includes a pulley 5 slidably connected in the guide groove 3, a fixing block rotatably connected to the pulley 5, and through holes 6 disposed on the front and rear sides of the cavity 4. The fixing block is slidably connected in the through hole 6 and is telescopically disposed relative to the through hole 6. The adjustment component includes a screw 7 disposed in the front and rear direction. The two ends of the screw 7 are respectively provided with external threads in opposite directions. The fixing blocks of the two sets of anti-fall-off components are respectively sleeved on the two ends of the screw 7 and are kinetically connected to the screw 7.

[0021] The aluminum alloy door and window includes a sliding rail 1 located on the windowsill and a window sash 2 located within the sliding rail 1. The sliding rail 1 has a U-shaped structure with its opening facing upwards and extending horizontally in the left-right direction. A sliding component is installed at the bottom of the window sash 2, which slidably connects to the sliding rail 1, thus enabling horizontal pushing and pulling and sliding opening and closing functions. Guide grooves 3 are located inside the sliding rail 1, positioned relative to the front and rear sides of the sliding rail 1. Two guide grooves 3 are horizontally aligned and extend horizontally along the direction of the sliding rail 1. Anti-detachment components are located within the guide grooves 3, corresponding one-to-one with each guide groove 3, and are used to prevent the window sash 2 from detaching from the sliding rail 1 during pushing and pulling. A cavity 4 is located outside the window sash 2, positioned relative to the left and right sides of the window sash 2 and extending vertically, used to accommodate the anti-detachment components and the adjustment components. The adjustment components are located within the cavity 4, with two sets of anti-detachment components symmetrically positioned at the front and rear ends of the adjustment components. Driven by the adjustment components, the two sets of anti-detachment components move closer or further apart to adjust the extension and retraction stroke of the anti-detachment components, thereby matching different sizes of the sliding rail 1.

[0022] The pulley 5 is located within the guide groove 3, is rotatable, and is horizontally positioned. The outer side of the pulley 5 abuts against the bottom of the guide groove 3, and the pulley 5 is slidably connected to the guide groove 3. The through hole 6 is located on both sides of the cavity 4, is through-hole, and matches and aligns with the fixing block. The fixing block is located within the through hole 6 and is slidably connected to it, allowing it to extend or retract relative to the through hole 6. The through hole 6 serves as a limit for the fixing block. One end of the fixing block is rotatably connected to the pulley 5, and the other end is drive-connected to the screw 7. The screw 7 is located within the cavity 4, is rotatable, and extends in the front-to-back direction. The screw 7 is a bidirectional screw structure, including a smooth section in the middle and threaded sections at both ends. The smooth section is rotatably connected to the window sash 2, and the two threaded sections each have external threads in opposite directions. The fixing blocks of the two sets of anti-detachment components are respectively sleeved on both ends of the screw 7 and drive-connected to it. Driven by screw 7, the fixed blocks at both ends of screw 7 move closer or further apart, synchronously driving the pulleys 5 connected to the fixed blocks to move closer or further apart, thus adjusting the stroke of pulleys 5. The bidirectional screw 7 design features simultaneous multi-tooth meshing, stroke self-locking, and insensitivity to contamination, ensuring the synchronicity and stability of the movement of the two fixed blocks. Furthermore, it is less affected by installation gaps, dust particles, and lubrication conditions, resulting in higher adjustment precision. The two pulleys 5 easily achieve the same stroke, and the force on the front and rear sides of the window sash 2 is more balanced during the sliding process.

[0023] By setting anti-detachment components and adjustment components, the adjustment component is first installed in the cavity 4. Two sets of anti-detachment components are symmetrically arranged at both ends of the adjustment component, corresponding to the guide grooves 3 on the front and rear inner sides of the slide rail 1, respectively. Then, the drive screw 7 is rotated, and the screw 7 is connected to the fixed block in a transmission connection, driving the two fixed blocks to move away from each other. The fixed block is slidably connected to the through hole 6 and extends outward from the through hole 6. The pulley 5 extends into the guide groove 3 and is slidably connected to the guide groove 3. When the window sash 2 is pushed or pulled, the pulley 5 slides along the direction of the guide groove 3, improving the smoothness of pushing and pulling, and at the same time limiting the lower part of the window sash 2 to prevent excessive pushing and pulling force from causing it to derail. In addition, the bidirectional screw 7 design is adopted, with the same screw 7 driving the two fixed blocks to extend and retract in opposite directions, which can ensure synchronization and stability, is not easily affected by the environment, improves the adjustment accuracy of the pulley 5 stroke, and makes the force on the front and rear sides of the window sash 2 balanced.

[0024] In this embodiment, preferably, the cavity 4 is provided with ears 8 symmetrically distributed at both ends of the screw 7. The ears 8 are provided with shaft holes 9 that match the screw 7. The screw 7 is inserted into the shaft holes 9 and is rotatably connected to the shaft holes 9.

[0025] Two ears 8 are located within the cavity 4, connecting to the outer side of the window sash 2 and extending horizontally outwards. The two ears 8 are symmetrically distributed at both ends of the screw 7, corresponding to the smooth section of the screw 7. The shaft hole 9 is located within the ears 8, extending through the screw 7, and matches the size and position of the screw 7. The screw 7 is inserted into the shaft hole 9, with the smooth section of the screw 7 rotatably connected to the shaft hole 9. The two threaded sections of the screw 7 extend outwards through the shaft hole 9, and the screw 7 is rotatably connected to the window sash 2 via the ears 8.

[0026] In this embodiment, preferably, a sleeve 10 is coaxially mounted on the outside of the screw 7. The sleeve 10 has a stepped structure and is inserted into the shaft hole 9 and abuts against the side wall of the ear 8. The screw 7 is rotatably connected to the shaft hole 9 through the sleeve 10.

[0027] The sleeve 10 is located outside the screw 7, coaxially arranged with the screw 7, and has a stepped structure. There are two sleeves 10, symmetrically distributed at both ends of the screw 7, corresponding one-to-one with the lugs 8. Each sleeve 10 includes a coaxially connected coupling section and a limiting section, with the outer diameter of the limiting section being larger than that of the coupling section. The sleeve 10 is fitted onto the outside of the screw 7 and fixed relative to it. The sleeve 10 is inserted into the shaft hole 9 and rotatably connected to it. Specifically, the coupling section faces the lug 8, is inserted into the shaft hole 9, and rotatably connected to it. The limiting section abuts against the side wall of the lug 8, restricting the axial movement of the screw 7. The screw 7 is rotatably connected to the shaft hole 9 through the sleeve 10.

[0028] In this embodiment, preferably, the fixing block includes a U-shaped clamping plate 11 with its opening facing the guide groove 3 and its inner side rotatably connected to the pulley 5. The upper and lower sides of the clamping plate 11 are slidably connected to the through hole 6.

[0029] The clamping plate 11 is horizontally positioned in a U-shape and is located on one side opposite to the guide groove 3. The clamping plate 11 includes two fixed plates spaced apart vertically, and a fixing groove located between the two fixed plates, with the opening of the fixing groove facing the guide groove 3. A pulley 5 is located inside the clamping plate 11, corresponding to the position of the fixing groove. A vertical rotating shaft is inserted between the two fixed plates, and the pulley 5 is sleeved on the outside of the rotating shaft, achieving a rotatable connection between the clamping plate 11 and the pulley 5. The clamping plate 11 is matched with the through hole 6 and can slide back and forth relative to the through hole 6. During the sliding process of the clamping plate 11, its upper and lower sides remain slidably connected to the through hole 6. The through hole 6 acts as a limit for the clamping plate 11, thereby ensuring accurate alignment between the pulley 5 and the guide groove 3.

[0030] In this embodiment, preferably, the fixing block includes a threaded sleeve 12 that is axially aligned with the screw 7. The threaded sleeve 12 is matched with the screw 7 and sleeved on the outside of the screw 7. One end of the threaded sleeve 12 is connected to the clamping plate 11, and the other end of the threaded sleeve 12 is connected to the screw 7 in a transmission manner.

[0031] The threaded sleeve 12 is located outside the clamping plate 11, axially aligned with the screw 7, and positioned relative to one side of the screw 7. The threaded sleeve 12 is fitted onto the outside of the screw 7, aligned with the center of the clamping plate 11. One end of the threaded sleeve 12 is connected to the clamping plate 11, and the other end is connected to the screw 7. When adjusting the stroke of the pulley 5, the screw 7 is driven to rotate. The screw 7 is connected to the threaded sleeve 12, and the threaded sleeve 12 drives the clamping plate 11 to move outward. The clamping plate 11 extends outward relative to the through hole 6, and the clamping plate 11 drives the pulley 5 to extend into the guide groove 3. The pulley 5 is slidably connected to the guide groove 3.

[0032] In this embodiment, preferably, shock-absorbing plates 13 are provided on the upper and lower sides of the through hole 6. The through hole 6 is slidably connected to the fixed block through the shock-absorbing plates 13. A rubber ring 14 is sleeved on the outer side of the pulley 5. The pulley 5 is slidably connected to the guide groove 3 through the rubber ring 14.

[0033] Two damping plates 13 are located between the through hole 6 and the fixing block, corresponding to the upper and lower sides of the through hole 6. The damping plates 13 are fixedly connected to the through hole 6, and slide relative to the fixing block. The through hole 6 is slidably connected to the fixing block through the damping plates 13. The damping plates 13 are made of cushioning material and have a shock-absorbing function. As a connecting component between the through hole 6 and the fixing block, they can reduce the impact of the window sash 2's vibration on the pulley 5 during the sliding process. In addition, a rubber ring 14 is located on the outside of the pulley 5, sleeved on the middle of the pulley 5. The outer side of the rubber ring 14 abuts against the bottom of the guide groove 3. The pulley 5 is slidably connected to the guide groove 3 through the rubber ring 14, further improving the shock absorption effect.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-fall-off device for aluminum alloy doors and windows, comprising a U-shaped slide rail and a window sash slidably disposed inside the slide rail, wherein horizontally extending guide grooves are respectively provided on the front and rear inner sides of the slide rail, and anti-fall-off components are respectively provided in the two guide grooves; a vertically extending cavity is provided on the outer side of the window sash, and an adjusting component is provided in the cavity; two sets of anti-fall-off components are symmetrically disposed at the front and rear ends of the adjusting component, characterized in that: The anti-detachment component includes a pulley slidably connected in the guide groove, a fixed block rotatably connected to the pulley, and through holes on the front and rear sides of the cavity. The fixed block is slidably connected in the through holes and is telescopically arranged relative to the through holes. The adjustment assembly includes a screw arranged in the front-to-back direction, with external threads in opposite directions at both ends of the screw. The fixing blocks of the two sets of anti-detachment assemblies are respectively sleeved on both ends of the screw and are connected to the screw drive.

2. The anti-falling device for aluminum alloy doors and windows according to claim 1, characterized in that: The cavity is provided with ears symmetrically distributed at both ends of the screw. The ears are provided with shaft holes that match the screw. The screw is inserted into the shaft holes and is rotatably connected to the shaft holes.

3. The anti-falling device for aluminum alloy doors and windows according to claim 2, characterized in that: A coaxial sleeve is fitted onto the outside of the screw. The sleeve has a stepped structure and is inserted into the shaft hole, abutting against the side wall of the lug. The screw is rotatably connected to the shaft hole through the sleeve.

4. The anti-falling device for aluminum alloy doors and windows according to claim 1, characterized in that: The fixing block includes a U-shaped clamping plate with its opening facing the guide groove and its inner side rotatably connected to the pulley. The upper and lower sides of the clamping plate are slidably connected to the through hole.

5. The anti-falling device for aluminum alloy doors and windows according to claim 4, characterized in that: The fixing block includes a threaded sleeve aligned with the screw axially. The threaded sleeve is matched with the screw and sleeved on the outside of the screw. One end of the threaded sleeve is connected to the clamping plate, and the other end of the threaded sleeve is connected to the screw drive.

6. The anti-falling device for aluminum alloy doors and windows according to claim 1, characterized in that: The through hole is provided with shock-absorbing plates on the upper and lower sides. The through hole is slidably connected to the fixed block through the shock-absorbing plates. A rubber ring is sleeved on the outside of the pulley, and the pulley is slidably connected to the guide groove through the rubber ring.

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