Hinge mechanism and folding door and window comprising same

Abstract

The utility model discloses a hinge mechanism and a folding door and window comprising the same. The hinge mechanism comprises a box body; the first connecting seat is fixedly provided with a first rotating shaft, and the first rotating shaft is rotationally connected to the box body; the second connecting seat is fixedly provided with a second rotating shaft, and the second rotating shaft is rotationally connected to the box body; the first gear is fixedly arranged on the first rotating shaft, and the first gear and the first rotating shaft rotate synchronously; the second gear is fixedly arranged on the second rotating shaft, and the second gear and the second rotating shaft rotate synchronously; the transmission gear set is rotationally connected to the box body and connected between the first gear and the second gear in a meshed mode, under transmission of the transmission gear set, the first gear and the second gear synchronously and reversely rotate, and under driving of the first gear and the second gear, the first connecting base and the second connecting base can synchronously and reversely rotate to the unfolding position or the folding position. Therefore, the problem of poor rotation synchronism of the two connecting seats in a traditional hinge mechanism is effectively solved, and the stability and coordination of the folding door in the unfolding and folding process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to door and window hardware fitting technical field especially hinge mechanism and including its folding door and window. BACKGROUND

[0002] Folding door usually includes multiple door leaves, in order to realize the unfolding and folding between two adjacent door leaves, hinge mechanism needs to be arranged between two adjacent door leaves, hinge mechanism includes box body and two connecting seats, two connecting seats are rotatably connected to the box body, two connecting seats are connected with two adjacent door leaves respectively, two connecting seats can rotate between unfolding position and folding position, when hinge mechanism is in unfolding position, two adjacent door leaves can open on the same straight line, when hinge mechanism is in folding position, two adjacent door leaves are folded mutually in parallel, however, the overall structure of the prior art hinge mechanism is usually relatively complex, and the rotation synchronism of two connecting seats is poor. SUMMARY

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides hinge mechanism and including its folding door and window, the hinge mechanism can synchronously reverse rotation and the structure is stable, easy to operate.

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

[0005] Hinge mechanism for folding door and window, including: box body;First connecting seat, fixedly provided with first rotation axis, the first rotation axis rotatably connected with the box body;Second connecting seat, fixedly provided with second rotation axis, the second rotation axis rotatably connected with the box body;First gear, fixedly arranged on the first rotation axis, the first gear and the first rotation axis synchronous rotation;Second gear, fixedly arranged on the second rotation axis, the second gear and the second rotation axis synchronous rotation;Transmission gear group, rotatably connected with the box body and meshedly connected between the first gear and the second gear, under the transmission of transmission gear group, the first gear and the second gear synchronous reverse rotation, under the drive of the first gear and the second gear, the first connecting seat and the second connecting seat can synchronous reverse rotation to unfolding position or folding position.

[0006] According to some embodiments of the utility model, the transmission gear group includes two transmission gears, the first gear, two transmission gears, the second gear are sequentially meshedly connected.

[0007] According to some embodiments of the utility model, the first rotation axis, the rotation axis of all gears in the transmission gear group and the second rotation axis are arc-shaped in the projection on the horizontal plane.

[0008] According to some embodiments of the utility model, the number of teeth and the modulus of each gear in the first gear, the second gear and the transmission gear set are same.

[0009] According to some embodiments of the utility model, the hinge mechanism further comprises a cover body, the cover body is arranged on the box body, an assembly cavity is formed between the cover body and the box body, the first gear, the second gear and the transmission gear set are all located in the assembly cavity.

[0010] According to some embodiments of the utility model, the first connecting seat is provided with a first elastic clamping piece, the second connecting seat is provided with a second elastic clamping piece, the box body is provided with a first limiting groove and a second limiting groove, when the first connecting seat and the second connecting seat rotate to the unfolded position, the first elastic clamping piece is clamped in the first limiting groove and the second elastic clamping piece is clamped in the second limiting groove to keep the first connecting seat and the second connecting seat in the unfolded position.

[0011] According to some embodiments of the utility model, the hinge mechanism further comprises a first torsional spring and a second torsional spring, the first torsional spring is arranged between the first connecting seat and the box body, the second torsional spring is arranged between the second connecting seat and the box body, when the first connecting seat and the second connecting seat rotate to the folded position, the first torsional spring and the second torsional spring are compressed.

[0012] According to some embodiments of the utility model, the first connecting seat is provided with a first protrusion, the second connecting seat is provided with a second protrusion, the box body is provided with a third protrusion and a fourth protrusion; one elastic arm of the first torsional spring abuts against the first protrusion, and the other elastic arm abuts against the third protrusion; one elastic arm of the second torsional spring abuts against the second protrusion, and the other elastic arm abuts against the fourth protrusion.

[0013] According to some embodiments of the utility model, the first rotating shaft is integrally formed on the first connecting seat, and / or the second rotating shaft is integrally formed on the second connecting seat.

[0014] In addition, the utility model further provides a folding door and window, including the hinge mechanism as described above, further including a first door and window leaf and a second door and window leaf, the first door and window leaf is fixedly connected to the first connecting seat, the second door and window leaf is fixedly connected to the second connecting seat, when the first connecting seat and the second connecting seat rotate to the unfolded position, the first door and window leaf and the second door and window leaf synchronously reverse rotation to the unfolded state, when the first connecting seat and the second connecting seat rotate to the folded position, the first door and window leaf and the second door and window leaf synchronously reverse rotation to the folded state.

[0015] In summary, the hinge mechanism and the folding door and window comprising the same have at least the following technical effects:

[0016] On the one hand, thanks to the precise meshing transmission between the first gear, the second gear and the transmission gear set, the first connecting seat and the second connecting seat can realize synchronous reverse rotation between the unfolded position and the folded position, effectively solving the problem of poor rotation synchronization of the two connecting seats in the traditional hinge mechanism, so that the first door and window leaf and the second door and window leaf corresponding to the first connecting seat and the second connecting seat can realize synchronous reverse rotation, ensuring the stability and coordination of the folding door during unfolding and folding, and since the hinge mechanism can ensure the synchronous rotation of the two connecting seats, the user can experience a smoother and more smooth opening and closing experience when operating the folding door, which not only improves the convenience of use, but also enhances the overall satisfaction of the user to the product; on the other hand, by introducing the combined design of the first gear, the second gear and the transmission gear set, the internal structure of the hinge mechanism is simplified and optimized, which not only reduces the overall complexity, but also improves the stability and durability of the mechanism, and reduces the risk of failure caused by complex structure; on the other hand, since the first gear, the second gear and the transmission gear set are meshed, the first connecting seat and the second connecting seat can be rotated inward or outward to the folded position, that is, whether the first gear rotates clockwise and the second gear rotates counterclockwise, or the first gear rotates counterclockwise and the second gear rotates clockwise, the first connecting seat and the second connecting seat can be rotated to the folded position, so that the user can open the folding door and window in a pushing manner both inside and outside the door, which is more labor-saving and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the folding door and window of the utility model embodiment in an unfolded state;

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

[0019] Figure 3 is a structure schematic view of the hinge mechanism of the utility model embodiment in an unfolded position;

[0020] Figure 4 is a structure schematic view of the hinge mechanism (open cover body) of the utility model embodiment in an unfolded position;

[0021] Figure 5 is a structure schematic view of the hinge mechanism of the utility model embodiment in a folded position;

[0022] Figure 6 is a structure schematic view of the hinge mechanism (open cover body) of the utility model embodiment in a folded position;

[0023] Figure 7 It is an exploded structural schematic view of the hinge mechanism of the utility model embodiment.

[0024] Figure 8 It is a structural schematic view of the box body of the utility model embodiment.

[0025] Among them, the sign meaning is as follows:

[0026] 1, box body; 11, first connecting hole; 12, second connecting hole; 13, third protrusion; 14, fourth protrusion; 15, first limit slot; 16, second limit slot; 2, first connecting seat; 21, first rotating shaft; 211, first shaft section; 212, second shaft section; 213, third shaft section; 22, first elastic clamping piece; 221, first elastic piece; 222, first limit column; 23, first protrusion; 3, second connecting seat; 31, second rotating shaft; 311, fourth shaft section; 312, fifth shaft section; 313, sixth shaft section; 32, second elastic clamping piece; 321, second elastic piece; 322, second limit column; 33, second protrusion; 4, first gear; 5, second gear; 6, transmission gear set; 61, transmission gear; 611, gear body; 612, gear shaft; 7, cover body; 8, first torsional spring; 9, second torsional spring; 10, first door and window leaf; 20, second door and window leaf. DETAILED DESCRIPTION

[0027] In order to better understand and implement, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0028] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0029] 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 utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0030] The utility model will be further described in detail below in combination with the drawings.

[0031] Embodiment one

[0032] Please refer to Figures 1 to 8 The utility model discloses a hinge mechanism for folding door and window, which comprises a box body 1, a first connecting seat 2, a second connecting seat 3, a first gear wheel 4, a second gear wheel 5 and a transmission gear set 6. The first connecting seat 2 is fixedly provided with a first rotating shaft 21, and the first rotating shaft 21 is rotatably connected to the box body 1. The second connecting seat 3 is fixedly provided with a second rotating shaft 31, and the second rotating shaft 31 is rotatably connected to the box body 1. The first gear wheel 4 is fixedly arranged on the first rotating shaft 21, and the first gear wheel 4 and the first rotating shaft 21 rotate synchronously. The second gear wheel 5 is fixedly arranged on the second rotating shaft 31, and the second gear wheel 5 and the second rotating shaft 31 rotate synchronously. The transmission gear set 6 is rotatably connected to the box body 1 and meshingly connected between the first gear wheel 4 and the second gear wheel 5. Under the transmission of the transmission gear set 6, the first gear wheel 4 and the second gear wheel 5 rotate reversely synchronously. Under the driving of the first gear wheel 4 and the second gear wheel 5, the first connecting seat 2 and the second connecting seat 3 can rotate reversely synchronously between the unfolded position and the folded position relative to the box body 1. Specifically, the first connecting seat 2 is used for connecting a first door and window leaf 10, and the second connecting seat 3 is used for connecting a second door and window leaf 20.

[0033] Specifically, the synchronous reverse rotation of the first gear wheel 4 and the second gear wheel 5 means that when the first gear wheel 4 rotates clockwise, the second gear wheel 5 correspondingly rotates counterclockwise at the same speed; when the first gear wheel 4 rotates counterclockwise, the second gear wheel 5 correspondingly rotates clockwise at the same speed.

[0034] Specifically, when the first connecting seat 2 and the second connecting seat 3 are in the unfolded position, the first door and window leaf 10 and the second door and window leaf 20 are correspondingly in the unfolded state, at which time the folding door and window realize closing; when the first connecting seat 2 and the second connecting seat 3 are in the folded position, the first door and window leaf 10 and the second door and window leaf 20 are correspondingly in the folded state, at which time the folding door and window realize opening.

[0035] The hinge mechanism provided by the embodiment has the following advantages. On the one hand, the first connecting seat 2 and the second connecting seat 3 can realize synchronous reverse rotation between the unfolded position and the folded position, thanks to the precise meshing transmission between the first gear 4, the second gear 5 and the transmission gear set 6, thereby effectively solving the problem of poor rotation synchronization of the two connecting seats in the traditional hinge mechanism, so that the first door and window leaf 10 and the second door and window leaf 20 connected by the first connecting seat 2 and the second connecting seat 3 can realize synchronous reverse rotation, ensuring the stability and coordination of the folding door during unfolding and folding. Moreover, the user can experience a smoother and more smooth opening and closing experience when operating the folding door, which not only improves the convenience of use, but also enhances the overall satisfaction of the user to the product. On the other hand, the combination design of the first gear 4, the second gear 5 and the transmission gear set 6 realizes the simplification and optimization of the internal structure of the hinge mechanism, which not only reduces the overall complexity, but also improves the stability and durability of the mechanism, and reduces the risk of failure caused by complex structure. On the other hand, the meshing transmission between the first gear 4, the second gear 5 and the transmission gear set 6 allows the first connecting seat 2 and the second connecting seat 3 to rotate inward or outward to the folded position, that is, whether the first gear 4 rotates clockwise and the second gear 5 rotates counterclockwise, or the first gear 4 rotates counterclockwise and the second gear 5 rotates clockwise, the first connecting seat 2 and the second connecting seat 3 can be rotated to the folded position. In this way, the user can open the folding door and window in a pushing manner from inside or outside the door, which is more labor-saving and convenient.

[0036] As shown in Figure 4 and Figure 6 , preferably, in the embodiment, the transmission gear set 6 includes two transmission gears 61, and the first gear 4, the two transmission gears 61 and the second gear 5 are sequentially meshed and connected. In this way, on the one hand, the arrangement of the two transmission gears 61 ensures that the first gear 4 and the second gear 5 can accurately realize synchronous reverse rotation, 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 61, the design of two transmission gears 61 in the embodiment makes the entire hinge mechanism more compact and simplified, which not only reduces material and manufacturing costs, but also improves assembly efficiency and maintainability of the mechanism. Moreover, the design of two transmission gears 61 makes the manufacturing process of the hinge mechanism 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.

[0037] It should be noted that in some other embodiments, the transmission gear set 6 can also include, but is not limited to, 4, 6 or 8 transmission gears 61, and the number of transmission gears 61 can be even to enable the first gear 4 and the second gear 5 to rotate in reverse synchronously. According to actual needs, the number of transmission gears 61 can be adjusted flexibly, for example, in some application scenarios requiring higher precision or greater torque, the number of transmission gears 61 can be increased, which is not limited herein.

[0038] As shown in Figure 7 , specifically, in the present embodiment, the transmission gear 61 includes a gear body 611 and a gear shaft 612, and the gear shaft 612 is fixedly arranged on the box body 1, and the gear body 611 is rotationally connected to the gear shaft 612.

[0039] As shown in Figure 4 and Figure 6 , preferably, in the present embodiment, the line connecting the first rotating shaft 21, the gear shaft 612 of the two transmission gears 61 and the second rotating shaft 31 is in an arc shape on the horizontal plane. In this way, on the one hand, the arc-shaped layout makes the installation of the hinge mechanism in the folding door more flexible, which can make more effective use of the limited space and avoid the space limitation that may be caused by the traditional straight-line layout. On the other hand, the arc-shaped rotating shaft layout helps to disperse the stress of the folding door during the unfolding and folding process, making the entire mechanism more stable. This design can reduce the damage of components caused by stress concentration and prolong the service life of the mechanism. On the other hand, the arc-shaped layout makes the meshing between the gears smoother, reducing the friction and resistance that may be caused by the straight-line layout, which helps to improve the smoothness and fluency of the folding door during the opening and closing process, enhancing the user experience. On the other hand, due to the arc-shaped layout, the contact between the gears is more uniform, reducing the noise and vibration caused by uneven contact, which helps to reduce the noise pollution of the folding door during use and improve the comfort of the indoor environment.

[0040] It should be noted that in some other embodiments, for application scenarios with sufficient space and low requirements for structural stability, the layout of the rotating shaft can adopt a straight-line layout, which is simple and easy to implement and has low cost. Alternatively, according to specific needs and space limitations, the rotating shaft layout can be designed as a polygon (such as a quadrilateral or a hexagon), which can optimize the space utilization to a certain extent while maintaining good structural stability.

[0041] As shown in Figure 4 , Figure 6 and Figure 7As shown, preferably, in the present embodiment, the number of teeth and the module of each transmission gear 61 in the first gear 4, the second gear 5 and the transmission gear set 6 are the same. In this way, on the one hand, since the number of teeth and the module of all gears are the same, the transmission ratio between them remains consistent, thereby ensuring the accurate movement of the folding door or similar device during unfolding and folding. This accurate transmission ratio is crucial for the stability and reliability of the device; on the other hand, gears with the same number of teeth and module mesh more evenly, reducing noise and vibration caused by poor meshing, which helps to improve the overall performance of the device and the user experience; and on the other hand, since all gears have the same parameters, the manufacturing process can be simplified, reducing manufacturing costs, and during maintenance, only one type of gear spare parts needs to be stocked, reducing the complexity and cost of maintenance.

[0042] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 , preferably, in the present embodiment, the hinge mechanism further comprises a cover 7, which covers the box body 1, and a fitting cavity is formed between the cover 7 and the box body 1, and the first gear 4, the second gear 5 and the transmission gear set 6 are all located in the fitting cavity. In this way, on the one hand, the fitting cavity provides a closed environment for the first gear 4, the second gear 5 and the transmission gear set 6, effectively preventing dust, dirt and other impurities from entering the gear system, thereby reducing gear wear and failure and prolonging the service life of the hinge mechanism; on the other hand, the closed environment helps to reduce the noise generated during the meshing of the gears, making the operation of the folding door and other devices quieter and improving the user experience; on the other hand, the presence of the cover 7 prevents users or other personnel from directly contacting the moving gears, reducing the risk of accidental injury and improving the safety of the product; on the other hand, the design of the cover 7 can match the overall appearance of the device, improving the aesthetics and overall texture of the product; in addition, although the first gear 4, the second gear 5 and the transmission gear set 6 are encapsulated in the fitting cavity, the cover 7 is usually designed to be detachable, making it easy to clean, lubricate or replace the gears when needed

[0043] As shown in Figure 4 , Figure 6 and Figure 8As shown, preferably, in the present embodiment, the first connecting seat 2 is provided with a first elastic clamping member 22, the second connecting seat 3 is provided with a second elastic clamping member 32, the box body 1 is provided with a first limiting slot 15 and a second limiting slot 16, when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first elastic clamping member 22 is clamped in the first limiting slot 15 and the second elastic clamping member 32 is clamped in the second limiting slot 16 to keep the first connecting seat 2 and the second connecting seat 3 in the unfolded position, when it is needed to switch the first connecting seat 2 and the second connecting seat 3 to the folded position, the side wall of the box body 1 can press against the first elastic clamping member 22 and the second elastic clamping member 32 and make the first elastic clamping member 22 disengage from the first limiting slot 15 and make the second elastic clamping member 32 disengage from the second limiting slot 16. In this way, on the one hand, when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first elastic clamping member 22 is automatically clamped in the first limiting slot 15, and at the same time, the second elastic clamping member 32 is clamped in the second limiting slot 16, this design ensures that the folding structure can stably keep its position in the unfolded state and is not easy to accidentally fold or loosen due to external force or vibration; on the other hand, it makes the user not need additional fixing steps or tools when unfolding the folding structure, only needs to simply rotate the connecting seat to the unfolded position, the elastic clamping member can be automatically clamped into the limiting slot, realizing quick and stable locking, this design simplifies the operation process and improves the user experience.

[0044] As Figure 7 and Figure 8As shown, specifically, in the present embodiment, the first elastic clamping member 22 comprises a first elastic member 221 and a first limiting post 222, the first elastic member 221 is arranged on the first connecting seat 2, and the first limiting member is connected to the first elastic member 221; the second elastic clamping member 32 comprises a second elastic member 321 and a second limiting post 322, the second elastic member 321 is arranged on the second connecting seat 3, and the second limiting post 322 is connected to the second elastic member 321; when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first limiting post 222 is clamped into the first limiting groove 15 under the action of the first elastic member 221, and the second limiting post 322 is clamped into the second limiting groove 16 under the action of the second elastic member 321. In this way, the first elastic clamping member 22 and the second elastic clamping member 32 are respectively composed of the first elastic member 221 and the first limiting post 222, and the second elastic member 321 and the second limiting post 322. This structure enables the first limiting post 222 and the second limiting post 322 to be clamped into the corresponding first limiting groove 15 and second limiting groove 16 respectively when the folded structure is unfolded, and achieves a stable locking effect through the elastic force of the elastic member. This design effectively prevents accidental folding or loosening of the folded structure in the unfolded state, ensuring the stability and safety of the structure. On the other hand, due to the presence of the elastic member, the first limiting post 222 and the second limiting post 322 have certain self-adapting ability during clamping, which means that even if there is a certain deviation or shaking of the first connecting seat 2 and the second connecting seat 3 during unfolding, the elastic member can make the limiting post smoothly clamped into the limiting groove through its elastic force, achieving a stable locking effect and convenient operation experience:

[0045] As Figure 7 shown, preferably, in the present embodiment, the hinge mechanism further comprises a first torsional spring 8 and a second torsional spring 9, the first torsional spring 8 is arranged between the first connecting seat 2 and the box body 1, and the second torsional spring 9 is arranged between the second connecting seat 3 and the box body 1, the first torsional spring 8 and the second torsional spring 9 are compressed when the first connecting seat 2 and the second connecting seat 3 are rotated to the folded position; in this way, on the one hand, when the first connecting seat 2 and the second connecting seat 3 are rotated to the folded position, the first torsional spring 8 and the second torsional spring 9 are compressed and store energy, which design enables the user to only need to push gently when needing to close the door, and the first torsional spring 8 and the second torsional spring 9 can release the stored energy to drive the first connecting seat 2 and the second connecting seat 3 to automatically rotate to the unfolded position. This automatic unfolding function not only simplifies the operation process of the user, but also improves the convenience and efficiency of the operation; on the other hand, the introduction of the first torsional spring 8 and the second torsional spring 9 not only provides the power for automatic unfolding, but also enhances the structural stability of the hinge mechanism to a certain extent. The elastic force of the torsional spring helps to maintain the close fit between the connecting seat and the box body 1 during folding and unfolding, reducing noise and wear caused by loosening or vibration. This design prolongs the service life of the hinge mechanism and improves the reliability and durability of the product.

[0046] As Figure 7 and Figure 8 shown, specifically, in the present embodiment, the first connecting seat 2 is provided with a first protrusion 23, the second connecting seat 3 is provided with a second protrusion 33, and the box body 1 is provided with a third protrusion 13 and a fourth protrusion 14; one elastic arm of the first torsional spring 8 abuts against the first protrusion 23, and the other elastic arm abuts against the third protrusion 13; one elastic arm of the second torsional spring 9 abuts against the second protrusion 33, and the other elastic arm abuts against the fourth protrusion 14. In this way, on the one hand, the stable positioning of the first torsional spring 8 and the second torsional spring 9 in the hinge mechanism is ensured, avoiding functional failure caused by loosening or displacement of the torsional spring, and at the same time, the first protrusion 23 and the third protrusion 13 provide a reliable support point for the first torsional spring 8, and the second protrusion 33 and the fourth protrusion 14 provide a reliable support point for the second torsional spring 9, so that the elastic force of the torsional spring can be more effectively transmitted to the first connecting seat 2 and the second connecting seat 3, realizing stable folding and unfolding of the first connecting seat 2 and the second connecting seat 3; on the other hand, the above-mentioned protrusions serve as connecting points between the connecting seats and the box body 1, and through the elastic force of the torsional spring, the connection between the first connecting seat 2, the second connecting seat 3 and the box body 1 can be made more compact, reducing the risk of loosening or deformation caused by vibration or external force impact.

[0047] As Figure 7 shown, preferably, in the present embodiment, the first rotating shaft 21 is integrally formed with the first connecting seat 2, and the second rotating shaft 31 is integrally formed with the second connecting seat 3. In this way, on the one hand, the integrally formed design makes the connection between the first rotating shaft 21 and the first connecting seat 2 and between the second rotating shaft 31 and the second connecting seat 3 more firm, avoiding functional failure caused by loosening or falling off of the connection, and this design significantly improves the overall strength and stability of the hinge mechanism, enabling it to withstand greater external force and impact, prolonging the service life of the product; on the other hand, the integrally formed design reduces the number of parts, simplifying the manufacturing and assembly process, which not only reduces production costs, but also improves production efficiency, at the same time, reduces errors and failure rates in the assembly process, improves the reliability and consistency of the product. On the other hand, the integrally formed design reduces unnecessary space waste, making the hinge mechanism more compact and lightweight, which is particularly important for application scenarios that require efficient space utilization, such as portable devices, furniture, vehicles, etc.

[0048] As Figure 7 and Figure 8As shown, specifically, in the embodiment, the box body 1 is provided with a first connecting hole 11 and a second connecting hole 12, the first rotating shaft 21 comprises a first shaft section 211, a second shaft section 212 and a third shaft section 213 connected in sequence, the first shaft section 211 is fixedly connected to the first gear 4, the second shaft section 212 is rotatably connected to the first connecting hole 11, and the first gear 4 and the third shaft section 213 form a clamping to the bottom wall of the box body 1; the second rotating shaft 31 comprises a fourth shaft section 311, a fifth shaft section 312 and a sixth shaft section 313 connected in sequence, the fourth shaft section 311 is fixedly connected to the second gear 5, the fifth shaft section 312 is rotatably connected to the second connecting hole 12, and the second gear 5 and the sixth shaft section 313 form a clamping to the bottom wall of the box body 1; in this way, the stability of the whole structure is further enhanced, and the durability of the product is improved.

[0049] It should be noted that, in some other embodiments, the first connecting seat 2 is provided with a first clamping block, the second connecting seat 3 is provided with a second clamping block, and the box body 1 is further provided with a first clamping position and a second clamping position; when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first clamping block is clamped into the first clamping position, and the second clamping block is clamped into the second clamping position to limit the outward folding of the first connecting seat 2 and the second connecting seat 3, thereby allowing only the inward folding of the first connecting seat 2 and the second connecting seat 3; or, when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first clamping block is clamped into the first clamping position, and the second clamping block is clamped into the second clamping position to limit the inward folding of the first connecting seat 2 and the second connecting seat 3, thereby allowing only the outward folding of the first connecting seat 2 and the second connecting seat 3.

[0050] As shown in Figure 1 and Figure 2 In addition, the embodiment also provides a folding door and window, which comprises the hinge mechanism as described above, and further comprises a first door and window leaf 10 and a second door and window leaf 20, the first door and window leaf 10 is fixedly connected to the first connecting seat 2, and the second door and window leaf 20 is fixedly connected to the second connecting seat 3; when the first connecting seat 2 and the second connecting seat 3 are rotated to the unfolded position, the first door and window leaf 10 and the second door and window leaf 20 are synchronously and reversely rotated to the unfolded state; when the first connecting seat 2 and the second connecting seat 3 are rotated to the folded position, the first door and window leaf 10 and the second door and window leaf 20 are synchronously and reversely rotated to the folded state; the folding door and window has all the advantages of the hinge mechanism described above, and will not be described here.

[0051] In summary, the hinge mechanism and the folding door and window comprising the same disclosed in the utility model can at least bring the following beneficial technical effects:

[0052] 1) effectively solve the problem of poor rotation synchronization of the two connecting seats in the traditional hinge mechanism, so that the first door and window leaf 10 and the second door and window leaf 20 corresponding to the first connecting seat 2 and the second connecting seat 3 can be synchronously and reversely rotated, ensuring the stability and coordination of the folding door during unfolding and folding;

[0053] 2) Since the hinge mechanism can ensure the synchronous rotation of the two connecting seats, the user can feel a more smooth and smooth opening and closing experience when operating the folding door, which not only improves the convenience of use, but also enhances the overall satisfaction of the user to the product;

[0054] 3) Compared with using a larger number of transmission gears 61, the two transmission gears 61 design makes the entire hinge mechanism more compact and simplified, which not only reduces the material cost and manufacturing cost, but also improves the assembly efficiency and maintainability of the mechanism;

[0055] 4) The projection of the line connecting the first rotating shaft 21, the gear shaft 612 of the two transmission gears 61 and the second rotating shaft 31 on the horizontal plane is arc-shaped, and the arc-shaped layout makes the installation of the hinge mechanism in the folding door more flexible, which can more effectively utilize the limited space and avoid the space limitation that may be caused by the traditional linear layout.

[0056] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme 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, some 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 hinge mechanism for folding doors and windows, characterized in that, The hinge mechanism comprises a box body (1), a first connecting seat (2) provided with a first rotating shaft (21) rotatably connected to the box body (1), a second connecting seat (3) provided with a second rotating shaft (31) rotatably connected to the box body (1), a first gear (4) fixedly arranged on the first rotating shaft (21) and synchronously rotatable with the first rotating shaft (21), a second gear (5) fixedly arranged on the second rotating shaft (31) and synchronously rotatable with the second rotating shaft (31), and a transmission gear set (6) rotatably connected to the box body (1) and meshingly connected between the first gear (4) and the second gear (5), wherein the first gear (4) and the second gear (5) are synchronously and reversely rotatable under the transmission of the transmission gear set (6), and the first connecting seat (2) and the second connecting seat (3) are synchronously and reversely rotatable to an unfolded position or a folded position under the driving of the first gear (4) and the second gear (5). The transmission gear set (6) comprises two transmission gears (61), and the first gear (4), the two transmission gears (61) and the second gear (5) are sequentially meshingly connected. The first rotating shaft (21), the rotating shafts of all gears in the transmission gear set (6) and the second rotating shaft (31) are arranged in an arc shape on a horizontal plane. The first gear (4), the second gear (5) and each gear in the transmission gear set (6) have the same number of teeth and the same modulus. The hinge mechanism further comprises a cover body (7) covering the box body (1), and an assembly cavity is formed between the cover body (7) and the box body (1), and the first gear (4), the second gear (5) and the transmission gear set (6) are located in the assembly cavity. The first connecting seat (2) is provided with a first elastic clamping piece (22), the second connecting seat (3) is provided with a second elastic clamping piece (32), the box body (1) is provided with a first limiting groove (15) and a second limiting groove (16), and when the first connecting seat (2) and the second connecting seat (3) are rotated to the unfolded position, the first elastic clamping piece (22) is clamped in the first limiting groove (15) and the second elastic clamping piece (32) is clamped in the second limiting groove (16) to keep the first connecting seat (2) and the second connecting seat (3) in the unfolded position. The hinge mechanism further comprises a first torsional spring (8) arranged between the first connecting seat (2) and the box body (1) and a second torsional spring (9) arranged between the second connecting seat (3) and the box body (1), and when the first connecting seat (2) and the second connecting seat (3) are rotated to the folded position, the first torsional spring (8) and the second torsional spring (9) are compressed.

2. The hinge mechanism of claim 1, wherein, ​ 3. The hinge mechanism of claim 1, wherein, ​ 4. The hinge mechanism of claim 1, wherein, ​ 5. The hinge mechanism of claim 1, wherein, ​ 6. The hinge mechanism according to any one of claims 1-5, characterized in that ​ 7. The hinge mechanism according to any one of claims 1-5, wherein, ​ 8. The hinge mechanism of claim 7, wherein, The first connecting seat (2) is provided with a first protrusion (23), the second connecting seat (3) is provided with a second protrusion (33), and the box body (1) is provided with a third protrusion (13) and a fourth protrusion (14); One elastic arm of the first torsion spring (8) abuts against the first protrusion (23), and the other elastic arm abuts against the third protrusion (13); one elastic arm of the second torsion spring (9) abuts against the second protrusion (33), and the other elastic arm abuts against the fourth protrusion (14).

9. The hinge mechanism according to claim 1 or 2 or 3 or 4 or 5 or 8, characterized in that, The first rotating shaft (21) is integrally formed on the first connecting seat (2), and / or the second rotating shaft (31) is integrally formed on the second connecting seat (3).

10. A folding door or window, characterised in that The hinge mechanism comprises a first door or window leaf (10) and a second door or window leaf (20), the first door or window leaf (10) is fixedly connected to the first connecting seat (2), and the second door or window leaf (20) is fixedly connected to the second connecting seat (3); when the first connecting seat (2) and the second connecting seat (3) rotate to an unfolded position, the first door or window leaf (10) and the second door or window leaf (20) synchronously and reversely rotate to an unfolded state; when the first connecting seat (2) and the second connecting seat (3) rotate to a folded position, the first door or window leaf (10) and the second door or window leaf (20) synchronously and reversely rotate to a folded state.

Images