Free folding window structure
By designing interlocking sliding components and adjustment kits in the folding window, the problem of low fit of the folding window is solved, achieving efficient space utilization and structural compactness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CHUANGKE DOOR & WINDOW CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-08
AI Technical Summary
Existing folding windows have poor fit when folded, which cannot meet the needs of small-sized buildings for maximum space utilization.
The design incorporates a first sliding member and a second sliding member with an interlocking configuration. These members slide on a guide rail via a guide wheel assembly, and the pressure and friction between the guide wheel assembly and the guide rail are adjusted by an adjustment kit to improve the fit and compactness of the folded window.
It improves the fit and space utilization of the folded window, ensures smooth movement, and adapts to the usage needs of different window sizes through the adjustment kit.
Smart Images

Figure CN224214042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding window technology, and in particular to a free-folding window structure. Background Technology
[0002] Folding doors and windows are a type of door and window that folds and opens by moving pulleys on a track. Because they take up very little space when folded and open, they are suitable for small apartments or scenarios that require flexible layout, and have the advantage of high space utilization. In addition, they also have sound insulation, heat insulation, dustproof and anti-theft properties, and some products incorporate intelligent control, so the products have diverse functions and are widely used in residential, commercial shops, sunrooms and other buildings, and have broad commercial application prospects.
[0003] Authorization announcement number CN219034503U discloses an electric folding door and folding window. The technical solution "includes a power frame and a door or window, with a power shaft and a tilting shaft installed on the door or window. The power shaft is slidably mounted to the power frame via a slat trolley, and the tilting shaft is mounted to the power frame via a tilting structure and a guide rail. The cooperation of the power shaft, tilting shaft, tilting structure, guide rail, and other transmission structures enables a motor to drive the door or window to open and close, and to generate a lateral thrust to push the door or window tight, achieving better sound insulation, heat insulation, and waterproofing performance." However, because adjacent door panels are supported and slid together via slat trolleys with identical structures, this results in a low degree of fit after folding, reducing space utilization, especially failing to meet the needs of small apartments for maximum space utilization. Utility Model Content
[0004] This invention overcomes the shortcomings of the prior art and provides a free-folding window structure, which helps to improve the fit of the window after folding and improve space utilization.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] A free-folding window structure includes a first window and a second window that are hinged together. The upper and / or lower ends of the first window away from the second window are connected to a first sliding member, and the upper and / or lower ends of the second window away from the first window are connected to a second sliding member. Both the first and second sliding members are slidably connected to a guide rail, and the first and second sliding members can be fitted together.
[0007] Furthermore, the first sliding member includes a first base, the second sliding member includes a second base, a first guide wheel assembly is rotatably disposed on the outer side of the first base, and a second guide wheel assembly is rotatably disposed on the outer side of the second base; both the first guide wheel assembly and the second guide wheel assembly are slidably connected to the guide rail; when the first sliding member and the second sliding member are brought close together, the first base and the second base have overlapping portions in the front-rear projection.
[0008] Both the first base and the second base are connected to connecting rods, and both the first window and the second window are connected to adjustment kits. The connecting rods are rotatably connected to the adjustment kits.
[0009] Furthermore, the adjustment kit includes a first mounting sleeve located above and a second mounting sleeve located below. The connecting rod is rotatably assembled in the second mounting sleeve. A threaded component is threadedly connected to the first mounting sleeve. A push rod is movably and vertically mounted at the lower end of the threaded component. The threaded component is connected to the push rod, and the push rod is connected to the connecting rod. By rotating the threaded component, the push rod can be controlled to move forward or backward toward the connecting rod, thereby adjusting the tightness against the connecting rod.
[0010] Furthermore, the first mounting sleeve has a fixing hole through which a fastening screw passes and is fastened to the door or window.
[0011] Furthermore, the first base includes a bottom plate and a first side plate connected together, the second base includes a top plate and a second side plate connected together, a first guide wheel assembly is rotatably connected to the outside of the first side plate, and a second guide wheel assembly is rotatably connected to the outside of the second side plate.
[0012] Furthermore, both the first guide wheel group and the second guide wheel group include at least one high-position wheel and at least one low-position wheel. The rim of the high-position wheel protrudes upward from the upper surface of the first base / second base, and the rim of the low-position wheel protrudes downward from the lower surface of the first base / second base.
[0013] Furthermore, at least one guide wheel is rotatably provided on the upper and / or lower surfaces of the first base and the second base, and the rotation plane of the guide wheel is perpendicular to the rotation plane of the lower wheel and the upper wheel.
[0014] Furthermore, the first window and the second window have the same structure and are symmetrically arranged; both the first window and the second window include a longitudinal support rod and a transverse support rod, the longitudinal support rod is provided with a guide slot, the guide slot is provided with guide strips on both sides inside, and the first mounting sleeve and the second mounting sleeve are provided with guide grooves on both sides that correspond to the guide strips.
[0015] Furthermore, the transverse support rod is provided with a mounting slot, and a fixing plate is movably sleeved on the connecting rod, with the fixing plate inserted and fixed in the mounting slot.
[0016] Furthermore, the guide rail has a receiving cavity, and a support platform and a limiting platform are provided on both sides of the receiving cavity. The high-position wheel and the low-position wheel are located between the support platform and the limiting platform.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model improves the fit of the folded window, increases space utilization, and enhances structural compactness by designing a first sliding member and a second sliding member with a fitting arrangement on the first and second windows respectively. It also includes an adjustment kit to adjust the pressure or friction between the guide wheel assembly and the guide rail on the first and second bases according to actual use, so as to ensure smooth movement. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is an overall diagram of the freely collapsible window structure;
[0021] Figure 2 It is a three-dimensional view of the first sliding member and the second sliding member;
[0022] Figure 3 This is an exploded view of the adjustment kit on the second sliding component;
[0023] Figure 4 It is a three-dimensional representation of the first sliding member and the second sliding member. Figure 1 ;
[0024] Figure 5 It is a three-dimensional representation of the first sliding member and the second sliding member. Figure 2 ;
[0025] Figure 6 This is a three-dimensional view of the second sliding component;
[0026] Figure 7 This is a sectional view of the longitudinal support rod;
[0027] Figure 8 This is a sectional view of the transverse support;
[0028] Figure 9 This is a cross-sectional view of the guide rail;
[0029] Figure 10 This is a schematic diagram of the combined state of the guide rail and the first sliding component.
[0030] In the picture:
[0031] 1. First sliding component; 101. First base; 1011. Base plate; 1012. First side plate; 2. Second sliding component; 201. Second base; 2011. Top plate; 2012. Second side plate; 2013. Slot; 3. High-position wheel; 4. Low-position wheel; 5. Guide limit wheel; 6. Connecting rod; 7. Buffer strip; 8. Adjustment kit; 801. First mounting sleeve; 8011. Fixing hole; 802. Second mounting sleeve; 803, guide groove; 9, threaded part; 10, top rod; 11, fastening screw; 12, fixing plate; 13, first window; 1301, longitudinal support rod; 13011, guide slot; 13012, guide strip; 1302, transverse support rod; 13021, mounting slot; 14, second window; 15, guide rail; 1501, receiving cavity; 1502, support platform; 1503, limiting platform. Detailed Implementation
[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0033] like Figures 1 to 10 As shown, this utility model claims protection for a free-folding window structure, including a first window 13 and a second window 14 hinged together. The upper and / or lower ends of the first window 13 away from the second window 14 are connected to a first sliding member 1, and the upper and / or lower ends of the second window 14 away from the first window 13 are connected to a second sliding member 2. The first sliding member 1 and the second sliding member 2 are both slidably connected to a guide rail 15, and the first sliding member 1 and the second sliding member 2 can be fitted together.
[0034] The first sliding member 1 includes a first base 101, and the second sliding member 2 includes a second base 201. Both the first base 101 and the second base 201 are assembled in the guide rail of the folding door and window. The first base 101 and the second base 201 are also connected to a connecting rod 6 for connecting with the folding door and window. The first window 13 and the second window 14 are connected to an adjustment kit 8. The connecting rod 6 is rotatably connected in the adjustment kit 8. Therefore, when the first window 13 and the second window 14 move, the first base 101 and the second base 201 will move in the guide rail 15.
[0035] The first base 101 has a first guide wheel assembly on its outer side, and the second side plate 2012 has a second guide wheel assembly on its outer side. Both the first and second guide wheel assemblies are slidably connected to the guide rail 15. Each guide wheel assembly includes at least one high-position wheel 3 and at least one low-position wheel 4. The rim of the high-position wheel 3 protrudes upward from the upper surface of the first base 101 / second base 201, and the rim of the low-position wheel 4 protrudes downward from the lower surface of the first base 101 / second base 201. The first base 101 and the second base 201 move in the track 15 via the high-position wheel 3 and the low-position wheel 4. Specifically, the guide rail 15 forms a receiving cavity 1501, which can accommodate the first base 101 and the second base 201 as a whole. The receiving cavity 1501 has a support platform 1502 and a limiting platform 1503 on both sides inside. The high-position wheel 3 and the low-position wheel 4 are located between the support platform 1502 and the limiting platform 1503. The high-position wheel 3 can be used to roll into contact with the limiting platform 1503, and the low-position wheel 4 can be used to roll into contact with the support platform 1502. The planes where the first guide wheel group and the second guide wheel group are located are parallel to each other, so there will be no path interference during movement and the movement is smooth.
[0036] Specifically, the first base 101 includes a bottom plate 1011 and a first side plate 1012 connected together, and the second base 201 includes a top plate 2011 and a second side plate 2012 connected together. The first guide wheel assembly is rotatably connected to the outside of the first side plate 1012, and the second guide wheel assembly is rotatably connected to the outside of the second side plate 2012. Therefore, the first guide wheel assembly and the second guide wheel assembly can be prevented from touching when the first base 101 and the second base 201 are fitted together, which also helps to improve the tightness of the connection.
[0037] In this embodiment, the center height and diameter of the high wheel 3 are both greater than those of the low wheel 4. The combination of the high wheel 3 and the low wheel 4 forms a walking constraint system, which effectively suppresses displacement deviation in the Z-axis direction.
[0038] To further enhance operational stability, at least one guide wheel 5 is provided on the upper and / or lower surfaces of the first base 101 and the second base 201. The rotation plane of the guide wheel 5 is perpendicular to the rotation plane of the lower wheel 4 and the higher wheel 3. The guide wheel 5 can be used to roll into contact with both sides of the inner wall of the track 15, so that the first sliding member 1 and the second sliding member 2 will not sway left and right when walking.
[0039] In this utility model, when the first sliding member 1 and the second sliding member 2 come close together, the first base 101 and the second base 201 overlap in the projection in the front-back direction, that is, the first base 101 and the second base 201 interlock, thereby enhancing the compactness of the structure and improving the fit of the folded door and window.
[0040] In this embodiment, buffer strips 7 are provided at the front walking sections of the first base 101 and the second base 201; Figure 2 For example, when the first base 101 and the second base 201 are interlocked to the limit, the buffer strip 7 on the second base 201 touches and contacts the corresponding part of the first base 101, which helps to improve the degree of connection. Since the first base 101 and the second base 201 are usually made of metal, the design of the buffer strip 7 helps to reduce noise and provide a buffering effect.
[0041] Both the first base 101 and the second base 201 are provided with dovetail-shaped snap-fit grooves 2013. The buffer strip 7 can be detachably installed in the grooves 2013. This detachable design facilitates assembly and replacement maintenance. The buffer strip 7 has an arc-shaped surface. According to research, the arc-shaped structure can disperse the impact force along the tangent direction of the curved surface, avoid local stress concentration when the plane is in contact, reduce the risk of material cracking, and extend the service life.
[0042] The first window 13 and the second window 14 have the same structure and are symmetrically arranged. Both the first window 13 and the second window 14 include a vertical support rod 1301 and a horizontal support rod 1302. The vertical support rod 1301 is provided with a guide slot 13011, and guide strips 13012 are provided on both sides of the inside of the guide slot 13011. The adjustment kit 8 includes a first mounting sleeve 801 located at the top and a second mounting sleeve 802 located at the bottom. Guide strips 13012 are provided on both sides of the first mounting sleeve 801 and the second mounting sleeve 802. The guide groove 803 facilitates the longitudinal mounting of the first mounting sleeve 801 and the second mounting sleeve 802 onto the longitudinal support rod 1301, i.e., onto the side of the corresponding window. The first mounting sleeve 801 is ultimately locked in the guide slot 13011, while the second mounting sleeve 802 can move up and down within the guide slot 13011, providing a certain amount of movement space. The first mounting sleeve 801 has a fixing hole 8011 through which the fastening screw 11 passes and is securely connected to the corresponding window.
[0043] The horizontal support rod 1302 is provided with an installation slot 13021. A fixing plate 12 is movably sleeved on the connecting rod 6. The fixing plate 12 is inserted and fixed in the installation slot 13021. The fixing plate 12 is inserted into the installation slot 13021 and screwed longitudinally from bottom to top to lock the fixing plate 12 onto the corresponding window, thereby enhancing the fixing effect between the first sliding member 1 and the second sliding member 2 and the door and window.
[0044] The connecting rod 6 is rotatably mounted in the second mounting sleeve 802; a threaded part 9 is threadedly connected to the first mounting sleeve 801, and a top rod 10 is movably and vertically mounted on the lower end of the threaded part 9. The threaded part 9 is connected to the top rod 10, and the top rod 10 is connected to the connecting rod 6. By rotating the threaded part 9, the top rod 10 can be controlled to move forward or backward toward the connecting rod 6, thereby adjusting the tightness against the connecting rod 6. In other words, the height of the first base 101 and the second base 201 can be finely adjusted, thereby adjusting the pressure of the guide wheel assembly on the first base 101 and the second base 201 on the track, and controlling the friction between the guide wheel assembly and the track. This allows for adjustment and control according to the actual use of different specifications of folding doors and windows, so that the folding doors and windows can move smoothly.
[0045] During the pushing, pulling, and folding process of the first window 13 and the second window 14, the connecting rod 6 will rotate together with the first base 101 and the second base 201, while the top rod 10 will not rotate. That is, the connecting rod 6 will rotate relative to the top rod 10. Therefore, in this embodiment, by setting the end of the top rod 10 that abuts against the connecting rod 6 to be in the shape of a ball head, the sliding friction area is effectively reduced and the resistance during movement is reduced compared with the traditional planar contact.
[0046] This free-folding window structure is designed with a first sliding member 1 and a second sliding member 2 that have an interlocking arrangement. After the first window 13 and the second window 14 are folded, the first base 101 of the first sliding member 1 and the second base 201 of the second pulley member 2 will be interlocked, which helps to improve the fit of the window after folding, improve space utilization and structural compactness. An adjustment kit 8 is also provided, which can adjust the pressure or friction between the guide wheel assembly and the guide rail on the first base 101 and the second base 201 according to the actual use, so as to make the movement smooth.
[0047] Finally, it should be noted that 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 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. However, 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. A freely foldable window structure, characterized in that: The system includes a first window (13) and a second window (14) with hinges. The upper and / or lower ends of the first window (13) away from the second window (14) are connected to a first sliding member (1), and the upper and / or lower ends of the second window (14) away from the first window (13) are connected to a second sliding member (2). The first sliding member (1) and the second sliding member (2) are slidably connected to the guide rail (15), and the first sliding member (1) and the second sliding member (2) can be fitted together.
2. The free-folding window structure according to claim 1, characterized in that: The first sliding member (1) includes a first base (101), and the second sliding member (2) includes a second base (201). A first guide wheel assembly is rotatably provided on the outer side of the first base (101), and a second guide wheel assembly is rotatably provided on the outer side of the second base (201). Both the first guide wheel assembly and the second guide wheel assembly are slidably connected to the guide rail (15). When the first sliding member (1) and the second sliding member (2) are close together, the first base (101) and the second base (201) have overlapping portions in the front-rear projection. A connecting rod (6) is connected to both the first base (101) and the second base (201), and an adjustment kit (8) is connected to both the first window (13) and the second window (14). The connecting rod (6) is rotatably connected to the adjustment kit (8).
3. The free-folding window structure according to claim 2, characterized in that: The adjustment kit (8) includes a first mounting sleeve (801) located above and a second mounting sleeve (802) located below. The connecting rod (6) is rotatably assembled in the second mounting sleeve (802). A threaded part (9) is threadedly connected to the first mounting sleeve (801). A push rod (10) is movably and vertically arranged at the lower end of the threaded part (9). The threaded part (9) is connected to the push rod (10), and the push rod (10) is connected to the connecting rod (6). By rotating the threaded part (9), the push rod (10) can be controlled to move forward or backward toward the connecting rod (6), thereby adjusting the tightness of the contact with the connecting rod (6).
4. The free-folding window structure according to claim 3, characterized in that: The first mounting sleeve (801) has a fixing hole (8011), and the fastening screw (11) passes through the fixing hole (8011) and is fastened to the door and window.
5. The free-folding window structure according to claim 2, characterized in that: The first base (101) includes a bottom plate (1011) and a first side plate (1012) connected together, and the second base (201) includes a top plate (2011) and a second side plate (2012) connected together. The first guide wheel group is rotatably connected to the outside of the first side plate (1012), and the second guide wheel group is rotatably connected to the outside of the second side plate (2012).
6. The freely foldable window structure according to claim 5, characterized in that: The first guide wheel group and the second guide wheel group each include at least one high-position wheel (3) and at least one low-position wheel (4). The rim of the high-position wheel (3) protrudes upward from the upper surface of the first base (101) / second base (201), and the rim of the low-position wheel (4) protrudes downward from the lower surface of the first base (101) / second base (201).
7. The free-folding window structure according to claim 6, characterized in that: At least one guide wheel (5) is rotatably provided on the upper and / or lower surfaces of the first base (101) and the second base (201), and the rotation plane of the guide wheel (5) is perpendicular to the rotation plane of the lower wheel (4) and the upper wheel (3).
8. The free-folding window structure according to claim 1, characterized in that: The first window (13) and the second window (14) have the same structure and are symmetrically arranged. Both the first window (13) and the second window (14) include a longitudinal support rod (1301) and a transverse support rod (1302). The longitudinal support rod (1301) is provided with a guide slot (13011). Guide strips (13012) are provided on both sides of the inside of the guide slot (13011). Guide grooves (803) that correspond to the guide strips (13012) are provided on both sides of the first mounting sleeve (801) and the second mounting sleeve (802).
9. The free-folding window structure according to claim 8, characterized in that: The transverse support rod (1302) is provided with an installation slot (13021), and a fixing plate (12) is movably sleeved on the connecting rod (6), and the fixing plate (12) is inserted and fixed in the installation slot (13021).
10. The freely foldable window structure according to claim 5, characterized in that: The guide rail (15) has a receiving cavity (1501). The receiving cavity (1501) has a support platform (1502) and a limiting platform (1503) on both sides. The high wheel (3) and the low wheel (4) are located between the support platform (1502) and the limiting platform (1503).
Citation Information
Patent Citations
Electric folding door and folding window
CN219034503U