Folding door hinge and folding door

Abstract

This invention provides a folding door hinge and a folding door. The hinge includes a sash mounting structure and a frame mounting structure, which are rotatably connected. The sash mounting structure includes: a rotating component for rotatably connecting to the frame mounting structure; a sash positioning component for connecting to the sash; and a connecting component disposed between the rotating component and the sash positioning component, and which is vertically and vertically connected to the sash positioning component. The connecting component allows for height adjustment to accommodate hardware mounting grooves of different profile thicknesses, enabling it to adapt to sashes of varying thicknesses and improving installation convenience. Furthermore, this design's sash mounting structure consists only of the rotating component, the sash positioning component, and the connecting component, greatly simplifying the structure and saving costs while maintaining full functionality and quality, thus improving production efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of door and window hardware, and particularly to a folding door hinge and a folding door. Background Technology

[0002] In folding door applications, the inner depth (thickness) of the door panel profile varies depending on the actual usage scenario and design requirements. Common specifications include standard sizes such as 25 cm and 35 cm, while various non-standard depth settings also exist. Existing folding door hinges generally have limited adaptability, only capable of being installed on door panels with a single profile thickness. When the door panel profile thickness changes, the entire hinge assembly must be replaced, which not only significantly increases material costs and inventory management burden but also leads to a lengthy and error-prone installation process. Furthermore, the assembly process of traditional hinge structures involves cumbersome steps and precise alignment requirements, resulting in low installation efficiency. At the same time, the complexity of the structure affects the stability and long-term reliability of the door's operation, making it difficult to meet the need for rapid adaptation to door panels of different depths. Summary of the Invention

[0003] The purpose of this invention is to provide a folding door hinge and a folding door to accommodate sashes of different profile thicknesses.

[0004] The first aspect of the present invention provides a folding door hinge, including a fan body mounting structure and a frame mounting structure, wherein the fan body mounting structure and the frame mounting structure are rotatably connected, and the fan body mounting structure includes: a rotating member for rotatably connecting to the frame mounting structure; a fan body positioning member for connecting to the fan body; and a connecting member, one end of which is connected to the rotating member, and the other end of which is vertically and vertically connected to the fan body positioning member.

[0005] Furthermore, the rotating component includes a positioning part and an insertion part. The positioning part is positioned on the profile edge groove of the fan body, and the insertion part is inserted into the hardware mounting groove of the fan body. One end of the connector is connected to the insertion part. The profile edge groove of the fan body is the largest slot in the width direction of the fan body profile, and this slot is located at the upper or lower edge of the fan body profile.

[0006] Furthermore, the positioning part and the insertion part are perpendicular to each other. The insertion part is located on the side of the positioning part near the fan body positioning member. The fan body positioning member is connected to the hardware mounting groove and is positioned opposite to the insertion part. Placing the insertion part close to the fan body positioning member can minimize the material used for the connecting parts.

[0007] Furthermore, the positioning part has stepped positions at both ends along the width direction of the fan body, and the stepped positions engage with the groove of the profile edge groove from the outside to the inside. The positioning part and the profile edge groove do not need to be positioned in the length direction of the profile; the positioning of the positioning part in the length direction relies on the positioning of the frame mounting structure and the fan body positioning component.

[0008] Furthermore, the rotating component also includes a transition portion extending along the height direction of the fan body. The transition portion is disposed between the positioning portion and the insertion portion, and the positioning portion, the transition portion, and the insertion portion are integrally formed. The transition portion extends along the height direction of the fan body, providing sufficient downward extension length for the rotating component to accommodate hardware mounting grooves of different depths.

[0009] Furthermore, the insertion part is provided with an insertion hole, and one end of the connector can be detachably inserted into the insertion hole.

[0010] Furthermore, the fan body positioning component is provided with several adjustment holes along the height direction, and the other end of the connector can be detachably connected to one of the several adjustment holes to adapt to fan body profiles of different depths.

[0011] Furthermore, the folding door hinge also includes a rotating shaft and a bushing. The rotating shaft is fixedly connected to the frame mounting structure, and the positioning part has a rotating hole seat extending towards the hardware mounting groove of the door body for inserting the bushing. The rotating hole seat protrudes from the surface of the positioning part and is formed by the deformation and stretching of the positioning part.

[0012] Furthermore, the frame mounting structure is equipped with a folding positioning component for positioning between the fan body and the pulley assembly of the other fan body when the fan body is in the folded state, thereby achieving stable positioning of the fan body in the folded state. One end of the pulley assembly of the other fan body is connected to the foldable fan body, and the other end slides on the frame.

[0013] A second aspect of the present invention provides a folding door, including a frame and a foldable and slidably connected fan body to the frame, wherein the aforementioned folding door hinge is provided between the frame and the fan body.

[0014] The beneficial effects of this plan are as follows: This folding door hinge design can be used as the side hinge for 3 / 7 folding doors. The rotating component and frame mounting component are rotatably connected. The sash positioning component is installed in the hardware mounting groove of the sash. The connecting component is located between the rotating component and the sash positioning component and is height-adjustable to the sash positioning component. The height is adjustable via the connecting component to accommodate hardware mounting grooves of different profile thicknesses, thus enabling it to adapt to sashes of varying thicknesses and improving installation convenience. Furthermore, this sash mounting structure consists only of the rotating component, the sash positioning component, and the connecting component, greatly simplifying the sash mounting structure. This saves costs and improves production efficiency while ensuring complete functionality and quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the folding door in its closed state. Figure 2A partial structural diagram of a folding door in its folded state; Figure 3 This is a partial front view schematic diagram of the folded state of the folding door; Figure 4 This is a structural diagram of a folding door hinge; Figure 5 This is an exploded view of the hinge structure of a folding door. Figure 6 A schematic diagram of the first angle of the fan body mounting structure; Figure 7 A schematic diagram of the second angle structure of the fan body mounting structure; Figure 8 Front view of the fan mounting structure; Figure 9 This is a schematic diagram illustrating the interaction between the folding door hinge and the pulley assembly in one embodiment; Figure 10 This is a schematic diagram illustrating the interaction between the folding door hinge and the pulley assembly in another embodiment.

[0016] Explanation of reference numerals in the attached figures: 1. Frame; 2. 7 / 8 sash; 3. 3 / 8 sash; 301. Hardware mounting groove; 302. Profile edge groove; 4. Side hinge; 5. Center hinge; 6. Pulley assembly; 10. Fan body mounting structure; 11. Rotating component; 111. Positioning part; 1111. Step position; 1112. Rotating hole seat; 112. Insertion part; 1121. Insertion hole; 113. Transition part; 12. Fan body positioning component; 121. Adjustment hole; 13. Connecting component; 14. Rotating shaft; 15. Bushing; 20. Frame mounting structure; 21A. Magnetic guide component; 21B. First snap-fit ​​structure; 22. Mounting plate; 61A. Magnet component; 611. Magnet mounting base; 612. Magnet block; 61B. Second snap-fit ​​structure. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the terms in this invention can be understood according to the specific circumstances.

[0019] See Figure 1-3 This embodiment discloses a folding door, including a frame 1 and a foldable and slidable panel connected to the frame 1, with a folding door hinge between the frame 1 and the panel. This folding door is a 3 / 7 folding door.

[0020] A 3 / 7 folding door, a widely used door and window device, includes a frame 1, a 7 / 8 sash 2, a 3 / 3 sash 3, an edge hinge 4, a middle hinge 5, and a pulley assembly 6. One end of the 3 / 8 sash 3 is rotatably connected to the frame 1 via the edge hinge 4, while the other end is connected to the 7 / 8 sash 2 via the middle hinge 5. The 7 / 8 sash 2 and the frame 1 are rotatably and slidably connected by the pulley assembly 6 to ensure smooth folding action. In this design, the folding door hinge is the edge hinge 4.

[0021] See further Figure 4-8 The folding door hinge disclosed in this embodiment includes a fan body mounting structure 10 and a frame mounting structure 20. The fan body mounting structure 10 and the frame mounting structure 20 are rotatably connected. The fan body mounting structure 10 includes: a rotating member 11 for rotatably connecting to the frame mounting structure 20; a fan body positioning member 12 for connecting to the fan body; and a connecting member 13, one end of which is connected to the rotating member 11, and the other end of which is vertically and vertically connected to the fan body positioning member 12.

[0022] The folding door hinge in this solution can be used as the side hinge 4 of a 3 / 7 folding door. The rotating component 11 is rotatably connected to the frame 1 mounting component. The fan body positioning component 12 is installed in the hardware mounting groove 301 of the fan body. The connecting component 13 is located between the rotating component 11 and the fan body positioning component 12, and the other end of the connecting component is vertically connected to the fan body positioning component 12. Height adjustment is achieved through the connecting component 13 to adapt to hardware mounting grooves 301 with different profile thicknesses, thus enabling adaptation to fan bodies of different thicknesses and improving installation convenience. Furthermore, the fan body mounting structure 10 in this solution consists only of the rotating component 11, the fan body positioning component 12, and the connecting component 13, greatly simplifying the structure of the fan body mounting structure 10. While ensuring complete functionality and quality, it can save costs and improve production efficiency.

[0023] In one embodiment, the rotating member 11 includes a positioning part 111 and an insertion part 112. The positioning part 111 is positioned on the profile edge groove 302 of the fan body, and the insertion part 112 is inserted into the hardware mounting groove 301 of the fan body. One end of the connecting member 13 is connected to the insertion part 112. The profile edge groove 302 of the fan body is the largest slot in the width direction of the fan body profile, and the slot is located at the upper or lower edge of the fan body profile.

[0024] The hardware mounting groove 301 of the fan body is an empty groove structure for installing hardware, generally located at the bottom of the groove in the thickness direction of the fan body. The profile edge groove 302 of the fan body is the largest slot located at the outermost edge of the upper, lower, and side edges of the profile, and this slot is located on the hardware mounting groove 301. The fan body positioning member 12 is generally located within the hardware mounting groove 301, and the insertion part 112 is inserted into the hardware mounting groove 301 to facilitate proximity to the fan body positioning member 12. The positioning part 111 is positioned in the profile edge groove 302 of the fan body, located at the outermost edge in the thickness direction of the fan body profile, providing sufficient space and depth for the insertion part 112 to connect to the fan body positioning member 12. This allows for height-adjustable structures to be provided on the insertion part 112 or the fan body positioning member 12 to accommodate fan body profiles of different depths.

[0025] In one embodiment, the positioning part 111 and the insertion part 112 are perpendicular to each other. The insertion part 112 is located on the side of the positioning part 111 near the fan body positioning member 12. The fan body positioning member 12 is connected to the hardware mounting groove 301 and is disposed opposite to the insertion part 112. Placing the insertion part 112 close to the fan body positioning member 12 can save material on the connector 13 as much as possible.

[0026] Understandably, the positioning part 111 is located along the length of the fan body profile, and the insertion part 112 is located along the height of the fan body profile, which helps to provide a stable connection foundation for the subsequent connector 13. By arranging the insertion part 112 closer to the fan body positioning part 12, the distance between the insertion part 112 and the fan body positioning part 12 can be effectively shortened, thereby directly reducing the length required for the connector 13 connecting the two. This layout optimization can directly reduce the material consumption of the connector 13.

[0027] The vertical arrangement of the positioning part 111 and the insertion part 112 ensures the stability of the structural connection and the accuracy of the installation. The layout of the insertion part 112 near the side of the fan body positioning component 12, combined with the relative arrangement of the fan body positioning component 12 in the hardware mounting groove 301, together construct a compact and efficient connection path, which not only saves materials but also simplifies the assembly process and improves the economy and practicality of the overall product.

[0028] In one embodiment, the positioning part 111 has stepped positions 1111 at both ends along the width direction of the fan body, and the stepped positions 1111 engage with the groove of the profile edge groove 302 from the outside to the inside. The positioning part 111 and the profile edge groove 302 do not need to be positioned in the length direction of the profile; the positioning of the positioning part 111 in the length direction relies on the positioning of the frame mounting structure 20 and the fan body positioning member 12.

[0029] Specifically, the step 1111 refers to a structure with a height difference formed at the edge of the positioning part 111, specifically manifested as a stepped or protruding shape transitioning from one plane to another. Its main function is to cooperate with the groove of the profile edge groove 302 to achieve snap-fit ​​fixation. The outer edge of the step 1111 is located on the groove of the profile edge groove 302, and the inner edge of the step 1111 is located on the inner wall of the groove of the profile edge groove 302, thereby achieving positioning of the positioning part 111 in the width and height directions of the fan-shaped profile.

[0030] One end of the positioning part 111 is rotatably connected to the frame mounting structure 20, and the other end of the positioning part 111 is connected to the sash positioning part 12 via the connector 13. Since the frame mounting structure 20, the connector 13, and the sash positioning part 12 cannot move along the length of the sash profile, the positioning part 111 also cannot move along the length of the sash profile. The installation method of the positioning part 111 significantly simplifies the installation process of the folding door hinge, reduces the complexity of installation, and enhances the overall structural stability and reliability of the positioning part 111 within the edge groove 302 of the sash profile, thereby improving the service life and safety of the entire folding door.

[0031] In one embodiment, the rotating member 11 further includes a transition portion 113 extending in the height direction of the fan body. The transition portion 113 is disposed between the positioning portion 111 and the insertion portion 112, and the positioning portion 111, the transition portion 113, and the insertion portion 112 are integrally formed. The transition portion 113 extends in the height direction of the fan body, providing sufficient downward extension length for the rotating member 11 to accommodate hardware mounting grooves 301 of varying depths. The transition portion 113 extending in the height direction of the fan body is a component of the rotating member 11, and its main function is to provide additional extension length along the height direction of the fan body. This allows the rotating member 11 to adapt to hardware mounting grooves 301 of varying depths, thereby ensuring that the hinge can be effectively installed and function in various fan body profiles.

[0032] The transition portion 113 is located between the positioning portion 111 and the insertion portion 112, structurally serving as a connection and bridge between them. This arrangement ensures a continuous and stable structural path between the positioning function provided by the positioning portion 111 and the insertion function implemented by the insertion portion 112, resulting in uniform stress distribution on the rotating component 11 and guaranteeing the stability of force transmission from the fan profile to the hinge. The transition portion 113 can extend directly from the lower surface of the positioning portion 111 and connect upwards to the upper surface of the insertion portion 112, forming a continuous structure.

[0033] The positioning part 111, the insertion part 112 and the transition part 113 are integrally processed into a plate structure. The positioning part 111 is the widest to accommodate the width of the fan body edge groove, the insertion part 112 is the narrowest to accommodate the width of the hardware mounting groove 301 of the fan body, and the transition part 113 adopts a trapezoidal shape to form a transition state, which facilitates the cutting and processing of the entire plate.

[0034] By introducing a transition portion 113 extending along the height of the fan body and placing it between the positioning portion 111 and the insertion portion 112, the overall longitudinal length of the rotating component 11 is effectively increased. This allows the rotating component 11 to extend downwards to a deeper position, thereby adapting to hardware mounting grooves 301 of different depths and solving the problem that the length of the rotating component 11 is insufficient to accommodate various fan body profiles. Simultaneously, the positioning portion 111, the transition portion 113, and the insertion portion 112 adopt an integral molding structure, avoiding the strength reduction and installation complexity that may result from separate assembly, ensuring a tight connection between components and effective force transmission, and improving the structural stability and durability of the rotating component 11.

[0035] In one embodiment, the insertion part 112 is provided with an insertion hole 1121, one end of the connector 13 is detachably inserted into the insertion hole 1121, and the other end of the connector 13 is vertically connected to the fan body positioning member 12. The other end of the connector 13 and the fan body positioning member 12 are allowed to move relative to each other in the height direction, and can be locked at a selected height position.

[0036] Of course, this solution can also be replaced by one end of the connector 13 being able to be raised and lowered to connect to the insertion part 112, and the other end of the connector 13 being fixedly connected to the fan body positioning part 12.

[0037] In one embodiment, the fan body positioning member 12 is provided with a plurality of adjustment holes 121 along the height direction, and the other end of the connector 13 is detachably connected to one of the plurality of adjustment holes 121 to accommodate fan body profiles of different depths.

[0038] The fan body positioning component 12 is designed with a series of preset holes in the vertical direction, which are the adjustment holes 121. The adjustment holes 121 provide multiple discrete and selectable connection points for fixing the connector 13, thereby allowing the fan body positioning component 12 and the connector 13 to form connections at different heights. The adjustment holes 121 are circular or elliptical holes that penetrate the fan body positioning component 12, and their spacing can be designed according to the preset fan body profile depth specifications (e.g., 25mm, 35mm, etc.).

[0039] This solution further refines the specific implementation of the "liftable connection," transforming the height adjustment, which previously required continuous adjustment or complex mechanisms, into a simple and reliable discrete point selection and fixing mechanism. This allows the entire folding door hinge to achieve excellent depth adaptability while maintaining its basic functions. Especially for common folding door panel depths such as 25cm and 35cm, installers can easily select the corresponding connection point based on the preset adjustment holes 121, eliminating the need for complex measurements or adjustments. This significantly simplifies the installation process, improves installation efficiency, and ensures a stable connection between the hinge and the panel profile, avoiding instability or loosening caused by improper adjustment.

[0040] In one embodiment, the folding door hinge further includes a rotating shaft 14 and a bushing 15. The rotating shaft 14 is fixedly connected to the frame mounting structure 20. The positioning part 111 has a rotating hole seat 1112 extending towards the hardware mounting groove 301 of the door body for inserting the bushing 15. The rotating hole seat 1112 protrudes from the surface of the positioning part 111 and is formed by the deformation and stretching of the positioning part 111.

[0041] The rotating seat 1112 is a structure on the positioning part 111 used to accommodate the bushing 15, and its shape is usually cylindrical or a hole with a specific cross-section. The rotating seat 1112 is integrally formed with the positioning part 111, for example, by casting or machining. It extends towards the hardware mounting groove 301 of the fan body, aiming to bring the center of gravity and force of the rotating mechanism closer to the fan body, thereby improving the stability and uniformity of the overall structure. The inner surface of the rotating seat 1112 is usually precision machined to ensure that the bushing 15 can be smoothly inserted and rotate with low friction.

[0042] The rotating shaft 14 is fixedly connected to the frame mounting structure 20, providing a solid reference point for the entire rotating system and avoiding stability issues caused by loose connections. The rotating hole seat 1112 on the positioning part 111 extends towards the hardware mounting groove 301 of the sash, making the connection between the rotating mechanism and the sash more compact and efficient, facilitating the effective transmission and distribution of force. The bushing 15 is inserted into the rotating hole seat 1112, effectively reducing frictional resistance during rotation, minimizing component wear, and extending the hinge's lifespan. It also makes the rotating connection between the sash and the frame 1 smoother and more reliable. This design simplifies the hinge installation process, reduces the need for additional complex components, and thus improves the overall performance and user experience of the folding door hinge.

[0043] See Figure 9 In one embodiment, the frame mounting structure 20 is provided with a folding positioning member for positioning between the fan body and the pulley assembly 6 of the other fan body when the fan body is in a folded state, so as to achieve stable positioning of the fan body in the folded state. One end of the pulley assembly 6 of the other fan body is connected to the foldable fan body, and the other end slides on the frame 1.

[0044] Specifically, the frame mounting structure 20 is provided with a first folding positioning member, and the pulley assembly 6 is provided with a second folding positioning member; when the fan body is in a folded state, the first folding positioning member and the second folding positioning member cooperate with each other to position the fan body in the folded position.

[0045] The first folding positioning component can be fixed to the frame mounting structure 20, for example, by screws, riveting, or integral molding. The second folding positioning component can be fixed to the pulley assembly 6, for example, by screws, welding, or integral molding with the pulley bracket. The positions of these two positioning components need to be calculated to ensure accurate alignment when the fan body is folded into place.

[0046] There are several ways the first and second folding positioning components can cooperate. For example, the first folding positioning component can be a raised limiting block, while the second folding positioning component can be a corresponding groove. When the fan body is folded into place, the limiting block inserts into the groove, achieving positioning through mechanical interference. Another approach is that the first folding positioning component can be an elastic pin, and the second folding positioning component can be a plate with a hole. When the fan body is folded into place, the elastic pin is pressed into the hole, maintaining positioning through elastic force. Yet another example is that the first folding positioning component can be a friction pad, and the second folding positioning component can be a contacting plane. Increasing the friction of the contact surface prevents the fan body from sliding, thus achieving positioning. These cooperation methods all provide resistance or mechanical locking to prevent the fan body from moving unintended in the folded position.

[0047] The folding positioning device of this application solves the problem of reduced stability of the folding door after it is folded when the door is in the folded state by setting a first folding positioning component and a second folding positioning component on the frame mounting structure 20 and the pulley assembly 6 respectively, and having them cooperate with each other. This device can position the door in the folded position and prevent it from moving unexpectedly due to external disturbances, thereby improving the stability and safety of the folding door in the folded state.

[0048] In one embodiment, the first folding positioning member is a magnetic guide 21A, and the second folding positioning member is a magnet 61A. When the fan body is in a folded state, the pulley assembly 6 slides until the magnetic guide 21A and the magnet 61A attract each other to contact and position.

[0049] The magnetic conductor 21A is a material or component that can be attracted by a magnetic field or conduct magnetic flux. It is typically made of ferromagnetic materials such as iron, nickel, cobalt, and their alloys, for example, a steel plate or iron block. The magnet 61A is a component capable of generating a magnetic field; it is a permanent magnet (achieving passive positioning without additional energy), such as a magnetic block made of rare-earth materials (e.g., neodymium iron boron) or ferrite materials. The magnet 61A is mounted on the pulley assembly 6 as an active magnetic field generator, whose magnetic field attracts the magnetic conductor 21A, thus providing a positioning force when the fan body is folded into place. The magnetic strength of the magnet 61A should be sufficient to provide a reliable attraction force when the fan body is folded into place, while also allowing the user to separate it with appropriate force to unfold the fan body when needed.

[0050] The first and second folding positioning components are specifically implemented as a magnetic guide 21A and a magnet 61A, respectively. Magnetic attraction is used for positioning, effectively solving problems such as wear, loosening, and inconvenience that may exist in traditional mechanical positioning. When the fan body is folded into place, the magnet 61A on the pulley assembly 6 automatically engages with the magnetic guide 21A on the frame mounting structure 20, achieving smooth positioning with no or light contact. This avoids direct friction and impact between mechanical parts, significantly improving the smoothness, reliability, and service life of positioning. This magnetic positioning method is not only easy to operate, requiring no additional manual locking steps, but also provides a stable holding force, preventing the fan body from accidentally unfolding or shaking in the folded state, ensuring the stability of the folding door in the folded state.

[0051] In one embodiment, the magnet component 61A includes a magnet mounting base 611 and a magnet block 612. The magnet mounting base 611 is located at one end of the pulley assembly 6, and the magnet block 612 is detachably connected to the magnet mounting base 611. The magnet mounting base 611 is designed as a seat with a specific shape and has grooves inside to provide stable support and positioning for the magnet block 612. Multiple grooves can be provided to accommodate one or more magnet blocks 612 according to different fan weights or magnetic attraction requirements. The magnet block 612 is generally simply glued into the groove.

[0052] The magnet component 61A is designed to include a magnet mounting base 611 and a magnet block 612 detachably connected within the magnet mounting base 611, allowing the magnet block 612 to be flexibly replaced according to actual needs. For example, when it is necessary to adjust the positioning magnetic force of the folding door, the user or maintenance personnel can easily replace the magnet block 612 with a different magnetic force to adapt to the requirements of different door weights or usage environments. In addition, if the magnet block 612 weakens or is damaged due to prolonged use, only the magnet block 612 itself needs to be replaced, without replacing the entire pulley assembly 6, significantly reducing maintenance costs and operational complexity, and improving the practicality and economy of the device.

[0053] The fan body can be stably positioned in the folded state by magnetic attraction. At the same time, when it is necessary to close the fan body, sufficient force can be used to separate the fan body without causing damage to the fan body or the frame 1.

[0054] In one embodiment, the magnet mounting base 611 is made of plastic, and the magnet mounting base 611 and the plastic bracket on the pulley assembly 6 are integrally formed.

[0055] The magnet mounting base 611 is made of plastic, allowing for mass production via efficient processes such as injection molding, effectively reducing material costs and processing difficulty. These two components are formed into an inseparable whole through a single injection molding process, completely eliminating the cumbersome steps of traditionally manufacturing the magnet mounting base 611 separately and then connecting it to the plastic bracket using screws, clips, or adhesives. The integrated molding structure ensures the robustness and stability of the connection between the magnet mounting base 611 and the plastic bracket, avoiding positioning failures caused by loosening or detachment, thereby improving the overall reliability of the pulley assembly 6.

[0056] In one embodiment, the frame mounting structure 20 is provided with a mounting plate 22 arranged along the length direction of the frame 1, and the magnetic conductive element 21A is arranged perpendicularly to the mounting plate 22 along the height direction of the frame 1 and is arranged opposite to the magnetic conductive element 21A.

[0057] A mounting plate 22 is provided on the frame mounting structure 20 along the length of the frame 1, and the magnetic guide component 21A is perpendicularly mounted on the mounting plate 22 along the height of the frame 1, and is positioned opposite to the magnet component 61A, providing a stable and adjustable mounting platform for the magnetic guide component 21A. This structural design ensures that the magnetic guide component 21A can magnetically engage with the magnet component 61A on the pulley assembly 6 in the optimal posture. When the fan is folded into place, the magnetic guide component 21A and the magnet component 61A can achieve precise alignment and sufficient attraction, thereby significantly enhancing the reliability and stability of the folding positioning, effectively avoiding fan shaking or accidental unfolding due to inaccurate positioning or insufficient magnetic force, and improving the user experience and safety of the folding door.

[0058] In one embodiment, the magnetic conductive element 21A and the mounting plate 22 are integrally formed.

[0059] By designing the magnetic conductor 21A and the mounting plate 22 as a single integrated structure, the assembly process between the two is effectively eliminated, thereby significantly reducing production costs and manufacturing time. This integrated design avoids problems such as loose connections and component misalignment that may exist in traditional split structures, ensuring the positional accuracy and secure fixation of the magnetic conductor 21A on the mounting plate 22.

[0060] In one embodiment, the width of the magnetic conductive element 21A is the same as the width of the hardware mounting groove 301 of the frame 1, and it is used to be inserted into the hardware mounting groove 301 to limit the mounting plate 22.

[0061] The width of the magnetic guide component 21A is designed to be the same as the width of the hardware mounting groove 301 of the frame 1, and it is inserted into the hardware mounting groove 301. This allows the frame 1 itself to precisely limit the positioning of the mounting plate 22. This method effectively solves the problem of potential loosening or inaccurate positioning of the mounting plate 22 within the frame 1, ensuring that the magnetic guide component 21A and the magnet component 61A can accurately and stably attract and contact each other when the fan body is folded into place. At the same time, the magnetic guide component 21A in this solution can also serve to position the frame mounting structure 20.

[0062] See Figure 10 In another embodiment, the first folding positioning member is a first latching structure 21B, and the second folding positioning member is a second latching structure 61B. When the fan body is in the folded state, the pulley assembly 6 slides to engage the second latching member with the first latching member. By specifically implementing the first and second folding positioning members as the first latching structure 21B and the second latching structure 61B, and engaging them with each other when the fan body is in the folded state, this application provides a more robust and reliable folding positioning method. This latching mechanism forms a positive mechanical lock, effectively preventing the fan body from shifting or disengaging from its positioning due to external vibration or accidental contact in the folded position, thereby ensuring the stability and safety of the folding door in the folded state.

[0063] Specifically, one of the first snap-fit ​​structure 21B and the second snap-fit ​​structure 61B is made of plastic and is used to deform and detach after being subjected to force.

[0064] The plastic snap-fit ​​structure is designed to deform and detach under pressure. When the user needs to release the folded locking mechanism, applying an appropriate external force (e.g., pulling or pushing the fan body) causes the plastic snap-fit ​​to undergo elastic or plastic deformation. For example, in the case of elastic deformation, the snap-fit ​​structure deforms under force, causing the locking part to separate. When the force is released, the snap-fit ​​structure returns to its original shape, making it suitable for scenarios requiring repeated locking and unlocking.

[0065] By designing one of the first latching structure 21B and the second latching structure 61B as a plastic material, and enabling it to deform and detach under stress, the problems of jamming, excessive operating force, and severe wear that may occur with traditional rigid latches during the positioning process of folding doors are effectively solved. When it is necessary to release the folding positioning, due to the elasticity or toughness of the plastic material, the latching structure can undergo controllable deformation under appropriate external force, thus smoothly separating from the other latching structure, reducing the difficulty of operation and the force required by the user. At the same time, the flexibility of the plastic material can also effectively absorb impact, reduce the wear of the latching components during frequent use, extend the service life of the folding positioning device, and improve the overall reliability and user experience.

[0066] Of course, the first latching structure 21B and the second latching structure 61B in this solution can also be designed as stable structures made of rigid materials to improve the stable connection in the folded state. In this case, a release mechanism needs to be set on the first latching structure 21B or the second latching structure 61B. When the fan body needs to be unfolded, the release mechanism is manually operated to unlock the first latching structure 21B and the second latching structure 61B.

[0067] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A folding door hinge, comprising a leaf mounting structure and a frame mounting structure, wherein the leaf mounting structure and the frame mounting structure are rotatably connected, characterized in that, The fan mounting structure includes: Rotary component, used for rotatably connecting the frame mounting structure; Fan body positioning component, used to connect to the fan body; A connector, one end of which is connected to the rotating component, and the other end of which can be raised and lowered to connect to the fan body positioning component.

2. The folding door hinge according to claim 1, characterized in that, The rotating component includes a positioning part and an insertion part. The positioning part is positioned on the profile edge groove of the fan body, and the insertion part is inserted into the hardware mounting groove of the fan body. One end of the connector is connected to the insertion part.

3. The folding door hinge according to claim 2, characterized in that, The positioning part and the insertion part are perpendicular to each other. The insertion part is located on the side of the positioning part near the fan body positioning member. The fan body positioning member is connected to the hardware mounting groove and is arranged opposite to the insertion part.

4. The folding door hinge according to claim 2, characterized in that, The positioning part has stepped positions at both ends along the width direction of the fan body, and the stepped positions are engaged with the groove of the profile edge groove from the outside to the inside.

5. The folding door hinge according to claim 4, characterized in that, The rotating component also includes a transition portion extending in the height direction of the fan body. The transition portion is located between the positioning portion and the insertion portion, and the positioning portion, the transition portion, and the insertion portion are integrally formed.

6. The folding door hinge according to claim 3, characterized in that, The insertion part is provided with an insertion hole, and one end of the connector can be detachably inserted into the insertion hole.

7. The folding door hinge according to claim 1, characterized in that, The fan body positioning component has several adjustment holes along the height direction, and the other end of the connector can be detachably connected to one of the adjustment holes to accommodate fan body profiles of different depths.

8. The folding door hinge according to claim 2, characterized in that, The folding door hinge also includes a rotating shaft and a bushing. The rotating shaft is fixedly connected to the frame mounting structure. The positioning part is provided with a rotating hole seat extending towards the hardware mounting groove of the door body for inserting the bushing.

9. The folding door hinge according to claim 1, characterized in that, The frame mounting structure is equipped with a folding positioning component, which is used to position the fan body between itself and the pulley assembly of the other fan body when the fan body is in a folded state, so as to achieve stable positioning of the fan body in the folded state.

10. A folding door, characterized in that, It includes a frame and a foldable and slidable fan body connected to the frame, wherein a folding door hinge as described in any one of claims 1-9 is provided between the frame and the fan body.

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