Folding door and window system

Abstract

The utility model discloses a folding door and window system which comprises at least two door and window sashes, each door and window sash is provided with a vertical side frame, each side frame is provided with an arc-shaped side wall, and the section of the arc-shaped side wall in the horizontal direction protrudes from inside to outside. The hinge assemblies are connected between the two adjacent door and window sashes, and the hinge assemblies are located at the upper ends and / or the lower ends of the door and window sashes; all the door and window sashes can move between an unfolding position and a folding position under the guidance of the hinge assembly. When all the door and window sashes are located at the unfolding positions, the arc-shaped side walls of the two adjacent side frames are opposite to each other so as to shield a gap between the two adjacent door and window sashes in the horizontal length direction, and an anti-pinch opening is formed between the arc-shaped side walls of the two adjacent side frames. Therefore, when the door and window sashes are unfolded, no extra space needs to be reserved on the main body between the upper ends and the lower ends of the door and window sashes for the hinge assembly to move, the two adjacent door and window sashes cannot interfere with each other when being unfolded due to the design of the arc-shaped side walls, and therefore the gap between the side frames of the two adjacent door and window sashes is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to door and window hardware fitting technical field especially relates to folding door and window system. BACKGROUND

[0002] Folding door and window system is widely used in modern architecture because of its space saving and convenient operation. The system is usually composed of several movable connected door and window leaves, which can be unfolded on the same straight line to achieve the closed state, and can also be folded to achieve the open purpose. The adjacent two door and window leaves are connected by hinge assemblies, which are usually installed on the main structure between the upper and lower ends of the door and window leaves. Due to the design of square side frame and the need to reserve space for the hinge assembly, there is usually a gap between the adjacent door and window leaves in the horizontal length direction after the traditional folding door and window is fully unfolded, which not only affects the appearance, but also has safety hazards, such as children or adults may be injured by fingers entering the gap. SUMMARY

[0003] In order to overcome at least one of the defects of the prior art, the utility model provides a folding door and window system, which aims to improve the gap problem between adjacent leaves of the traditional folding door and window when unfolded, and improve the safety.

[0004] The utility model discloses a technical scheme adopted to solve the problem is:

[0005] A folding door and window system, comprising: at least two door and window leaves, each of the door and window leaves is provided with a vertical side frame, each of the side frames has an arc-shaped side wall, and the cross section of the arc-shaped side wall in the horizontal direction is convex from inside to outside; a hinge assembly connected between the adjacent two door and window leaves, and the hinge assembly is located at the upper end and / or lower end of the door and window leaf; under the guidance of the hinge assembly, all the door and window leaves can move between the unfolded position and the folded position; wherein, when all the door and window leaves are in the unfolded position, the arc-shaped side walls of the adjacent two side frames are opposite to each other to block the gap between the adjacent two door and window leaves in the horizontal length direction, and a anti-pinch opening is formed between the arc-shaped side walls of the adjacent two side frames.

[0006] According to some embodiments of the utility model, the folding door and window system further comprises a first vertical extending adhesive strip, and the first adhesive strip is arranged on the arc-shaped side wall; when the adjacent two door and window leaves are in the unfolded position, the first adhesive strip on one of the arc-shaped side walls of the adjacent two side frames abuts against the other arc-shaped side wall.

[0007] According to some embodiments of the utility model, the arc-shaped side wall is provided with a first vertical extending adhesive groove, and the first adhesive strip is partially embedded in the first adhesive groove.

[0008] According to some embodiments of the present application, when all the door and window leaves are in the unfolded position, the door and window leaf at the head end is the head door and window leaf, both sides of the head door and window leaf are provided with the arc-shaped side walls, the folding door and window system further comprises a first vertical frame, one side of the first vertical frame towards the head door and window leaf is provided with a first arc-shaped groove, and one of the arc-shaped side walls of the head door and window leaf is located in the first arc-shaped groove.

[0009] According to some embodiments of the present application, when all the door and window leaves are in the unfolded position, the door and window leaf at the tail end is the tail door and window leaf, both sides of the tail door and window leaf are provided with the arc-shaped side walls, the folding door and window system further comprises a second vertical frame, one side of the second vertical frame towards the tail door and window leaf is provided with a second arc-shaped groove, and one of the arc-shaped side walls of the tail door and window leaf is located in the second arc-shaped groove.

[0010] According to some embodiments of the present application, the folding door and window system further comprises a second vertically extending adhesive strip, the second adhesive strip is arranged on the first vertical frame, when all the door and window leaves are in the unfolded position, one of the arc-shaped side walls of the head door and window leaf at the edge in the first direction is abutted against the second adhesive strip, and the first direction is the thickness direction of the door and window leaf.

[0011] According to some embodiments of the present application, the folding door and window system further comprises a third vertically extending adhesive strip, the third adhesive strip is arranged on the second vertical frame, when all the door and window leaves are in the unfolded position, one of the arc-shaped side walls of the tail door and window leaf at the edge in the first direction is abutted against the third adhesive strip, and the first direction is the thickness direction of the door and window leaf.

[0012] According to some embodiments of the present application, each of the hinge assemblies comprises a box body and two connecting seats, both the connecting seats are rotationally connected to the box body, and both the connecting seats are arranged on the upper end and / or the lower end of the door and window leaf; in the adjacent two door and window leaves, one of the connecting seats is fixedly connected to one of the door and window leaves, and the other of the connecting seats is fixedly connected to the other door and window leaf.

[0013] According to some embodiments of the present application, the connecting seat is provided with a rotating shaft and a gear part, the connecting seat is rotationally connected to the box body through the rotating shaft, and the gear part is arranged on the rotating shaft; the box body is further provided with a transmission gear set, the transmission gear set is meshingly connected between the gear parts of both the connecting seats; under the driving of the transmission gear set, the gear parts of both the connecting seats are synchronously and reversely rotated; under the driving of the gear parts of both the connecting seats, both the connecting seats can be synchronously and reversely rotated.

[0014] According to some embodiments of the utility model, the connecting seat is provided with elastic clamping pieces, the box body is provided with limiting grooves, when all the door and window leaves rotate to the unfolded position, the elastic clamping pieces are clamped in the limiting grooves to keep the two connecting seats in the position of making all the door and window leaves rotate to the unfolded position.

[0015] In summary, the folding door and window system provided by the utility model has at least the following technical effects:

[0016] On the one hand, since the hinge assemblies are arranged at the upper end and the lower end of the door and window leaves, the door and window leaves do not need to reserve extra space for the hinge assemblies to move on the main body between the upper end and the lower end of the door and window leaves when unfolded, so that the structure is more compact, and the design of the arc-shaped side walls makes the adjacent two door and window leaves not interfere with each other when unfolded, thereby effectively reducing the gap between the side frames of the adjacent two door and window leaves and improving the appearance and sealing performance of the door and window. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structural schematic view of the folding door and window system of the utility model embodiment in the unfolded state;

[0018] Figure 2 It is a perspective structural schematic view of the folding door and window system of the utility model embodiment in the folded state;

[0019] Figure 3 It is a bottom view structural schematic view of the folding door and window system of the utility model embodiment in the unfolded state;

[0020] Figure 4 It is Figure 3 A partial enlarged view of the middle A part;

[0021] Figure 5 It is Figure 3 A partial enlarged view of the middle B part;

[0022] Figure 6 It is Figure 3 A partial enlarged view of the middle C part;

[0023] Figure 7 It is a bottom view structural schematic view of the folding door and window system (the hinge assembly is not shown) of the utility model embodiment in the unfolded state;

[0024] Figure 8 It is Figure 7 A partial enlarged view of the middle D part;

[0025] Figure 9 It is a perspective structural schematic view of the hinge assembly of the utility model embodiment in the unfolded state;

[0026] Figure 10 An exploded structural schematic view of the hinge assembly of the embodiment of the present application when unfolded;

[0027] Figure 11 An exploded structural schematic view of the hinge assembly of the embodiment of the present application when folded.

[0028] In which, the meaning of the reference signs is as follows:

[0029] 1, door and window leaf; 11, side frame; 111, arc-shaped side wall; 112, anti-pinch opening; 113, first glue groove; 2, hinge assembly; 21, box body; 211, limiting groove; 22, connecting seat; 221, rotating shaft; 222, gear part; 23, transmission gear set; 24, elastic clamping part; 3, first glue strip; 4, second glue strip; 5, third glue strip; 6, first vertical frame; 61, first arc-shaped groove; 7, second vertical frame; 71, second arc-shaped groove. DETAILED DESCRIPTION

[0030] In order to better understand and implement, the technical scheme in the embodiment of the present application will be clearly and completely described below in combination with the drawings in the embodiment of the present application.

[0031] In the description of the present application, it should be pointed out that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship described based on the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application.

[0033] The present application will be further described in detail below in combination with the drawings.

[0034] Please refer to Figures 1 to 8The utility model discloses a folding door and window system, including hinge assembly 2 and two door and window shutters 1, every door and window shutter 1 is provided with vertical side frame 11, every side frame 11 has arc side wall 111, and the section of arc side wall 111 in horizontal direction is bulged from inside to outside, hinge assembly 2 is connected between two adjacent door and window shutters 1, and the hinge assembly 2 is arranged on the upper end and lower end of door and window shutter 1 respectively, under the guidance of hinge assembly 2, two door and window shutters 1 can move between unfolded position and folding position, wherein, when two door and window shutters 1 are in unfolded position, the arc side wall 111 of two adjacent side frames 11 is opposite each other to shield the gap of two adjacent door and window shutters 1 in horizontal length direction, and the arc side wall 111 between two adjacent side frames 11 forms anti-pinch mouth 112.

[0035] As Figure 1 and Figure 3 shown, specifically, in the embodiment, when two door and window shutters 1 are in unfolded position, two door and window shutters 1 are unfolded on the same straight line, and the folding door and window system is in the door closing (window closing) state, as Figure 2 shown, when two door and window shutters 1 are in folding position, two door and window shutters 1 are folded and accommodated in parallel with each other, and the folding door and window system is in the door opening (window closing) state.

[0036] The folding door and window system provided by the embodiment has the following advantages: on the one hand, since the hinge assembly 2 is arranged at the upper end and the lower end of the door and window shutter 1, the door and window shutter 1 does not need to reserve extra space for the hinge assembly 2 to move between the upper end and the lower end of the door and window shutter 1 when unfolded, so that the structure is more compact, and the design of the arc side wall 111 ensures that the two adjacent door and window shutters 1 do not interfere with each other when unfolded, thereby effectively reducing the gap between the side frames 11 of the two adjacent door and window shutters 1 and improving the appearance and sealing performance of the door and window; on the other hand, the anti-pinch mouth 112 naturally formed between the two adjacent arc side walls 111 effectively prevents hand pinching accidents and improves the safety in use.

[0037] It should be noted that in some other embodiments, the number of door and window shutters 1 can also be, but is not limited to, 3 or 4 or 5, etc., which can be set according to actual needs.

[0038] It should be noted that in some other embodiments, the hinge assembly 2 can be arranged only at the upper end or the lower end of the door and window shutter 1, which can be selected according to actual needs.

[0039] As Figure 2 , Figure 7 and Figure 8As shown, preferably, in the present embodiment, the folding door and window system further comprises a first vertical extending adhesive strip 3, which is arranged on the arc-shaped side wall 111; when the two adjacent door and window leaves 1 are in the unfolded position, the first adhesive strip 3 on one arc-shaped side wall 111 of the two adjacent side frames 11 abuts against the other arc-shaped side wall 111. In this way, on the one hand, when the two adjacent door and window leaves 1 are in the unfolded position, the first adhesive strip 3 can directly fill the small gap between the arc-shaped side walls 111 of the two adjacent side frames 11, the structural tightness between the door and window leaves 1 is enhanced, and the filling effect effectively prevents the penetration of air, dust and noise, thereby improving the sealing performance between the door and window leaves 1; on the other hand, the installation process of the first adhesive strip 3 is simple and fast, and the user can easily complete the installation, and the replacement of the adhesive strip is also very convenient, when the adhesive strip is aged or damaged, the user can easily disassemble and replace the new adhesive strip, so as to maintain the optimal performance of the system

[0040] As shown in Figure 2 , Figure 7 and Figure 8 , preferably, in the present embodiment, the arc-shaped side wall 111 is provided with a first vertical extending adhesive groove 113, and the first adhesive strip 3 is partially embedded in the first adhesive groove 113. In this way, the embedded design of the first adhesive strip 3 and the first adhesive groove 113 simplifies the installation process and reduces the installation difficulty, and when the first adhesive strip 3 is aged or damaged, the user can easily disassemble and replace the new adhesive strip without the need for large-scale maintenance or replacement of the entire door and window system, thereby saving the maintenance cost and time.

[0041] As shown in Figure 3 and Figure 4As shown, specifically, in the present embodiment, when all the door and window leaves 1 are in the unfolded position, the door and window leaf at the head end is the head door and window leaf, preferably, both sides of the head door and window leaf are provided with arc-shaped side walls 111, and the folding door and window system further comprises a first vertical frame 6, the first vertical frame 6 is provided with a first arc-shaped groove 61 on the side facing the head door and window leaf, and one of the arc-shaped side walls 111 of the head door and window leaf is located in the first arc-shaped groove 61. In this way, first of all, when all the door and window leaves 1 are in the unfolded position, the head door and window leaf serves as the starting part of the entire system, and its stability is crucial. By providing the first vertical frame 6 and setting the first arc-shaped groove 61 on the side facing the head door and window leaf, one of the arc-shaped side walls 111 of the head door and window leaf can be tightly embedded in the arc-shaped groove. This design not only enhances the stability of the head door and window leaf in the unfolded state, but also effectively prevents shaking or misalignment caused by external forces. Secondly, the close fit of the first arc-shaped groove 61 and the arc-shaped side wall 111 of the head door and window leaf effectively eliminates the gap between them, thereby improving the sealing performance of the system. This design can prevent the penetration of external factors such as air, dust, and moisture, providing a more quiet, clean, and comfortable indoor environment for users. At the same time, it also reduces noise and heat loss caused by gaps, improving the heat preservation and sound insulation effect of the door and window. Thirdly, the design of the first arc-shaped groove 61 simplifies the installation process of the head door and window leaf. Construction workers can easily embed the arc-shaped side wall 111 of the head door and window leaf into the arc-shaped groove and ensure the smooth unfolding and tight fitting of the door and window leaf 1 through adjustment. This design not only reduces the installation difficulty, but also improves the efficiency and accuracy of installation and debugging. Finally, the introduction of the first arc-shaped groove 61 not only optimizes the function, but also improves the overall aesthetics of the door and window system. This design makes the head door and window leaf and the first vertical frame 6 form a smooth transition, avoiding the abrupt feeling caused by gaps or misalignment, and creating a more harmonious and unified visual effect.

[0042] As Figure 3 and Figure 4As shown, preferably, in the present embodiment, the folding door and window system further comprises a second vertically extending adhesive strip 4, which is arranged on the first vertical frame 6, and when all the door and window leaves 1 are in the unfolded position, one of the arc-shaped side walls 111 of the first door and window leaf abuts against the second adhesive strip 4 at the edge in the first direction, which is the thickness direction of the door and window leaf 1. In this way, an additional support point is provided for the first door and window leaf, which not only enhances the stability of the first door and window leaf in the unfolded state, but also reduces the shaking phenomenon caused by wind pressure, vibration and other factors, thereby improving the safety and reliability of the entire folding door and window system. In addition, the close contact between the second adhesive strip 4 and the edge of the first door and window leaf further improves the sealing performance of the system, which effectively prevents the penetration of harmful factors such as external air, dust, moisture and the like, thereby providing a quieter, cleaner and more comfortable indoor environment for the user. At the same time, this also reduces the noise and heat loss caused by the gap, thereby improving the heat preservation and sound insulation effect of the door and window, and thus enhancing the energy efficiency of the building.

[0043] As Figure 3 and Figure 5As shown, specifically, in the present embodiment, when all the door and window leaves 1 are in the unfolded position, the door and window leaf at the tail end is the tail door and window leaf, preferably, both sides of the tail door and window leaf are provided with arc-shaped side walls 111, and the folding door and window system further comprises a second vertical frame 7, the second vertical frame 7 is provided with a second arc-shaped groove 71 on the side facing the tail door and window leaf, and one of the arc-shaped side walls 111 of the tail door and window leaf is located in the second arc-shaped groove 71. In this way, first of all, when all the door and window leaves 1 are in the unfolded position, the tail door and window leaf serves as the end part of the entire folding door and window system, and its stability is crucial to the operation of the entire system. By providing the second vertical frame 7 and setting the second arc-shaped groove 71 on the side facing the tail door and window leaf, one of the arc-shaped side walls 111 of the tail door and window leaf can be tightly embedded in the arc-shaped groove. This design not only enhances the stability of the tail door and window leaf in the unfolded state, but also ensures the smoothness and safety of the entire folding door and window system during operation. Secondly, the close fit of the second arc-shaped groove 71 and the arc-shaped side wall 111 of the tail door and window leaf further improves the sealing performance of the system. This design effectively prevents the penetration of harmful factors such as external air, dust, and water vapor, providing a quieter, cleaner, and more comfortable indoor environment for users. At the same time, this also reduces noise and heat loss caused by gaps, improves the heat preservation and sound insulation effect of the door and window, and enhances the energy efficiency of the building. Thirdly, the design of the second arc-shaped groove 71 simplifies the installation process of the tail door and window leaf. Construction workers can easily embed the arc-shaped side wall 111 of the tail door and window leaf into the arc-shaped groove and ensure the smooth unfolding and tight fitting of the door and window leaf through simple adjustment. This design not only reduces the installation difficulty, but also improves the efficiency and accuracy of installation and debugging, shortening the construction period. Finally, the introduction of the second arc-shaped groove 71 not only optimizes the function, but also improves the overall aesthetics of the door and window system. This design makes the tail door and window leaf and the second vertical frame 7 form a smooth transition, avoiding the jarring feeling caused by gaps or misalignment.

[0044] As Figure 3 and Figure 5As shown, preferably, in the embodiment, the folding door and window system further comprises a third vertical extending adhesive strip 5, which is arranged on the second vertical frame 7, and when all the door and window leaves 1 are in the unfolded position, one of the arc-shaped side walls 111 of the tail door and window leaf abuts against the third adhesive strip 5 at the edge in the first direction, which is the thickness direction of the door and window leaf 1. In this way, an additional support point is provided for the tail door and window leaf, which greatly enhances the stability of the tail door and window leaf in the unfolded state, and this design effectively reduces the shaking phenomenon caused by wind pressure, vibration and other factors, ensuring the smooth operation of the entire folding door and window system. Moreover, the close contact of the third adhesive strip 5 with the edge of the tail door and window leaf further improves the sealing performance of the system, which effectively prevents the penetration of harmful factors such as external air, dust, moisture and other harmful factors, providing a more quiet, clean and comfortable indoor environment for the user. At the same time, this also significantly reduces the noise and heat loss caused by the gap, improving the heat preservation and sound insulation effect of the door and window, thereby enhancing the energy efficiency and living comfort of the building.

[0045] As shown in Figure 1 , Figure 2 , Figure 6 , Figure 9 and Figure 11 , preferably, in the embodiment, each hinge assembly 2 comprises a box body 21 and two connecting seats 22, both of which are rotationally connected to the box body 21. In a set of hinge assemblies 2, the two connecting seats 22 are arranged in pairs at the upper end or lower end of the door and window leaf 1. In adjacent two door and window leaves 1, one of the two connecting seats 22 is fixedly connected to one of the door and window leaves 1, and the other connecting seat 22 is fixedly connected to the other door and window leaf 1.

[0046] In this way, on the one hand, each hinge assembly 2 is composed of a box body 21 and two connecting seats 22, which ensures the compactness and functionality of the hinge assembly 2. The box body 21, as the core component of the hinge assembly 2, is responsible for supporting and connecting the two connecting seats 22, ensuring the stability and reliability of its structure. Moreover, in adjacent two door and window leaves 1, the two connecting seats 22 are fixedly connected to different door and window leaves 1, respectively, which ensures the firm connection between the door and window leaves 1, avoiding the shaking and noise problems caused by loose connection. At the same time, this also enables the door and window leaves 1 to maintain a more stable and smooth movement state during unfolding and folding. On the other hand, since the connecting seat 22 and the door and window leaf 1 are fixedly connected, there is no need for complex adjustment and calibration during installation, which reduces the installation difficulty and cost. At the same time, it is also easier to check and replace damaged parts during maintenance, improving the maintenance efficiency.

[0047] As shown in Figure 10As shown, preferably, in the embodiment, the connecting seat 22 is provided with a rotating shaft 221 and a gear member 222, the connecting seat 22 is rotatably connected to the box body 21 through the rotating shaft 221, the rotating shaft 221 is relatively fixed to the connecting seat 22, the gear member 222 is relatively fixed to the rotating shaft 221, and the gear member 222, the rotating shaft 221 and the box body 21 rotate synchronously; the box body 21 is also provided with a transmission gear set 23, the transmission gear set 23 is meshingly connected between the two gear members 222 of the two connecting seats 22; under the driving of the transmission gear set 23, the two gear members 222 of the two connecting seats 22 rotate reversely synchronously; under the driving of the two gear members 222 of the two connecting seats 22, the two connecting seats 22 can rotate reversely synchronously to drive the adjacent two door and window leaves 1 to rotate reversely synchronously. In this way, on the one hand, thanks to the precise meshing transmission between the two gear members 222 and the transmission gear set 23, the problem of poor rotation synchronism of the two connecting seats 22 in the traditional hinge assembly 2 is effectively solved, so that the adjacent two door and window leaves 1 connected by the two connecting seats 22 can rotate reversely synchronously, ensuring the stability and coordination of the folding door and window system during unfolding and folding, and since the synchronous reverse rotation of the two connecting seats 22 can be ensured, users can experience a more smooth and smooth opening and closing experience when operating the folding door and window system, which not only improves the convenience of use, but also enhances the overall satisfaction of users to the product; on the other hand, by introducing the combined design of the two gear members 222 and the transmission gear set 23, the internal structure of the hinge assembly 2 is simplified and optimized, which not only reduces the overall complexity, but also improves the stability and durability of the overall assembly, reducing the risk of failure caused by complex structure; on the other hand, due to the meshing transmission between the two gear members 222 and the transmission gear set 23, the two connecting seats 22 can be rotated inward or outward to rotate the adjacent two door and window leaves 1 to the folding position, so that users can open the folding door and window system in a pushing manner both inside and outside the door, which is more labor-saving and convenient.

[0048] As Figure 10 As shown, preferably, in the embodiment, the transmission gear set 23 includes two transmission gears, one of the two gear members 222, the two transmission gears and the other of the two gear members 222 are meshingly connected in sequence. In this way, on the one hand, the provision of the two transmission gears ensures that the two gear members 222 can accurately rotate reversely synchronously, which is crucial for devices such as folding doors that require coordinated action, and can significantly improve the stability and reliability of the device; on the other hand, compared with using a larger number of transmission gears, the two transmission gears in the embodiment make the entire hinge assembly 2 more compact and simplified, which not only reduces material and manufacturing costs, but also improves assembly efficiency and maintainability of the mechanism, and the design of the two transmission gears makes the manufacturing process of the hinge assembly 2 simpler and more standardized, and since the number of components is reduced, the maintenance and replacement costs will also be correspondingly reduced, which is crucial for prolonging the service life of the device and improving the overall performance.

[0049] It should be noted that in some other embodiments, the transmission gear set 23 can also include, but is not limited to, 4, 6 or 8 transmission gears, and the number of transmission gears is even, which can make the two gear members 222 rotate in opposite directions synchronously. According to actual needs, the number of transmission gears in the transmission gear set 23 can be flexibly adjusted, for example, in some application scenarios that require higher precision or greater torque, the number of transmission gears can be increased, which is not uniquely limited here.

[0050] As shown in Figure 6 , Figure 9 and Figure 11 , preferably, in the present embodiment, the connecting seat 22 is provided with an elastic clamping member 24, and the box body 21 is provided with a limiting groove 211. When all the door and window leaves 1 are rotated to the unfolded position, the elastic clamping member 24 is clamped in the limiting groove 211 to keep the two connecting seats 22 in a position where all the door and window leaves 1 are rotated to the unfolded position. This design ensures that the folding door and window system can stably maintain its position in the unfolded state and is not easy to accidentally fold or loosen due to external force or vibration.

[0051] In summary, the folding door and window system disclosed by the utility model can at least bring the following beneficial technical effects:

[0052] 1) The door and window leaves 1 do not need to reserve additional space for the hinge assembly 2 to move between the upper and lower ends of the main body when unfolded, so that the structure is more compact, and the design of the arc-shaped side wall 111 ensures that the adjacent two door and window leaves 1 do not interfere when unfolded, thereby effectively reducing the gap between the adjacent two door and window leaves 1 side frames 11, improving the appearance and sealing performance of the door and window;

[0053] 2) The naturally formed anti-pinch opening 112 between the adjacent two arc-shaped side walls 111 effectively prevents hand pinching accidents and improves safety in use;

[0054] 3) When the adjacent two door and window leaves 1 are in the unfolded position, the first rubber strip 3 can directly fill the small gap between the arc-shaped side walls 111 of the adjacent two side frames 11, and the structural tightness between the door and window leaves 1 is enhanced;

[0055] 4) The embedded design of the first rubber strip 3 and the first rubber groove 113 simplifies the installation process and reduces the installation difficulty. At the same time, when the first rubber strip 3 is aged or damaged, the user can easily disassemble and replace the new rubber strip without the need for large-scale maintenance or replacement of the entire door and window system, thereby saving maintenance cost and time.

[0056] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A folding door and window system characterized by, The application relates to a folding door and window system, comprising: at least two door and window leaves (1), each of the door and window leaves (1) is provided with vertical side frames (11), each of the side frames (11) has an arc-shaped side wall (111), and the arc-shaped side wall (111) is convex from inside to outside in the horizontal direction; a hinge assembly (2) connected between two adjacent door and window leaves (1) and located at the upper end and / or the lower end of the door and window leaves (1); under the guidance of the hinge assembly (2), all the door and window leaves (1) can move between an unfolded position and a folded position; wherein when all the door and window leaves (1) are in the unfolded position, the arc-shaped side walls (111) of two adjacent side frames (11) are opposite to each other to block the gap between the two adjacent door and window leaves (1) in the horizontal length direction, and a pinch-proof opening (112) is formed between the arc-shaped side walls (111) of the two adjacent side frames (11).

2. The folding door and window system according to claim 1, wherein, The folding door and window system further comprises a first vertical extending adhesive strip (3) arranged on the arc-shaped side wall (111). When two adjacent door and window leaves (1) are in the unfolded position, the first adhesive strip (3) on one of the arc-shaped side walls (111) of the two adjacent side frames (11) abuts against the other arc-shaped side wall (111).

3. The folding door and window system according to claim 2, wherein, The arc-shaped side wall (111) is provided with a first vertical extending adhesive groove (113), and the first adhesive strip (3) is partially embedded in the first adhesive groove (113).

4. The folding door and window system according to claim 2, wherein, When all the door and window leaves (1) are in the unfolded position, the door and window leaf (1) at the head end is a head door and window leaf (1), both sides of the head door and window leaf (1) are provided with the arc-shaped side wall (111), the folding door and window system further comprises a first vertical frame (6), the first vertical frame (6) is provided with a first arc-shaped groove (61) towards one side of the head door and window leaf (1), and one of the arc-shaped side walls (111) of the head door and window leaf (1) is located in the first arc-shaped groove (61).

5. The folding door and window system according to claim 4, wherein, The folding door and window system further comprises a second vertical extending adhesive strip (4) arranged on the first vertical frame (6), and when all the door and window leaves (1) are in the unfolded position, the edge of one of the arc-shaped side walls (111) of the head door and window leaf (1) in a first direction abuts against the second adhesive strip (4), and the first direction is the thickness direction of the door and window leaf (1).

6. The folding door and window system according to claim 2, wherein, When all the door and window leaves (1) are in the unfolded position, the door and window leaf (1) at the tail end is a tail door and window leaf (1), both sides of the tail door and window leaf (1) are provided with the arc-shaped side wall (111), the folding door and window system further comprises a second vertical frame (7), the second vertical frame (7) is provided with a second arc-shaped groove (71) towards one side of the tail door and window leaf (1), and one of the arc-shaped side walls (111) of the tail door and window leaf (1) is located in the second arc-shaped groove (71).

7. The folding door and window system according to claim 6, wherein, The folding door and window system further comprises a third vertically extending adhesive strip (5) arranged on the second vertical frame (7), and when all the door and window leaves (1) are in the unfolded position, the edge of one of the arc-shaped side walls (111) of the tail door and window leaf (1) in a first direction abuts against the third adhesive strip (5), the first direction being the thickness direction of the door and window leaf (1).

8. The folding door and window system according to any one of claims 1-7, wherein, Each of the hinge assemblies (2) comprises a box body (21) and two connecting seats (22), the two connecting seats (22) are rotationally connected to the box body (21), and the two connecting seats (22) are arranged in pairs at the upper end and / or the lower end of the door and window leaf (1); in the adjacent two door and window leaves (1), one of the two connecting seats (22) is fixedly connected to one of the door and window leaves (1), and the other of the two connecting seats (22) is fixedly connected to the other door and window leaf (1).

9. The folding door and window system according to claim 8, wherein, The connecting seat (22) is provided with a rotating shaft (221) and a gear member (222), the connecting seat (22) is rotationally connected to the box body (21) through the rotating shaft (221), and the gear member (222) is arranged on the rotating shaft (221); the box body (21) is further provided with a transmission gear set (23), the transmission gear set (23) is meshingly connected between the gear members (222) of the two connecting seats (22); under the driving of the transmission gear set (23), the gear members (222) of the two connecting seats (22) are synchronously and reversely rotated; under the driving of the gear members (222) of the two connecting seats (22), the two connecting seats (22) can be synchronously and reversely rotated.

10. The folding door and window system according to claim 8, wherein, The connecting seat (22) is provided with an elastic clamping member (24), and the box body (21) is provided with a limiting groove (211), when all the door and window leaves (1) are rotated to the unfolded position, the elastic clamping member (24) is clamped in the limiting groove (211) to keep the two connecting seats (22) in the position where all the door and window leaves (1) are rotated to the unfolded position.

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