Hinge and door and window system comprising same

Abstract

The invention discloses a hinge and a door and window system comprising the same. A fixed seat; one end of the swing arm is fixed to the rotating seat, and the other end of the swing arm is hinged to the fixed seat; under the guidance of the swing arm, the rotating seat can sequentially rotate among an opening position, a middle position and a closing position relative to the fixed seat; the power part comprises an elastic piece, the elastic piece is arranged on the fixing base and is in transmission connection with the swing arm, and the elastic piece can stretch out and draw back in the length direction of the elastic piece; when the rotating seat is in the opening position, the elastic piece is pressed and abuts against the swing arm so that the swing arm can be kept at the current position. When the rotating base is located in the middle position, the swing arm rotates to the position where the elastic piece is allowed to stretch, the elastic piece stretches and pushes the swing arm to rotate, and the rotating base rotates to the closed position under driving of the swing arm. The linear telescopic elastic piece is adopted to replace a traditional torsional spring, the installation steps are simplified, the assembly difficulty is reduced, the linear telescopic elastic piece is not prone to fatigue in long-term use, and the service life of the hinge is effectively prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of door and window hardware accessories, in particular to a hinge and a door and window system comprising the hinge. Background Art

[0002] An American hinge usually includes a first base, a second base, an articulated arm and a torsion spring. One end of the articulated arm is hinged to the first base, and the other end is fixed to the second base. Under the guidance of the articulated arm, the second base can rotate in sequence between an open position, an intermediate position and a closed position relative to the first base, and the torsion spring is arranged between the articulated arm and the first base. When the second base is in the open position, the elastic force of the torsion spring can act on the articulated arm to maintain the current position of the articulated arm. When the second base is in the intermediate position, the elastic force of the torsion spring can act on the articulated arm to drive the articulated arm to rotate. Driven by the articulated arm, the second base can rotate to the closed position.

[0003] For example, a Chinese patent with publication number CN203961554U discloses an American damping concealed hinge, comprising a first base, a second base, and an articulated arm, wherein one end of the articulated arm is articulated with the first base, and the other end of the articulated arm is connected with the second base, a cavity is provided on the first base, a damping device that can be driven by the articulated arm is provided in the cavity, a first baffle is provided on the left and right sides of the damping device, a first torsion spring is provided between the first baffle and the left side wall of the first base, a second torsion spring is provided between the second baffle and the right side wall of the first base, a first extended leg of the first torsion spring and a first extended leg of the second torsion spring are respectively pressed on the articulated arm, and a second extended leg of the first torsion spring and a second extended leg of the second torsion spring are respectively pressed on the first base. The utility model provides baffles on the left and right sides of the cylinder of the damping device, respectively, for limiting the left and right sides of the cylinder, ensuring that the cylinder slides back and forth smoothly, thereby making the shape of the first base simple, and in addition, the baffle and the inner wall of the cavity of the first base are used to set a support shaft to install the torsion spring, which facilitates the installation of the torsion spring. However, in the actual assembly process, the assembly of the torsion spring still has the problem of too many steps, the installation is still not convenient enough, and the torsion spring is prone to failure after long-term use. Summary of the invention

[0004] In order to overcome at least one of the defects of the prior art described above, the present invention provides a hinge and a door and window system including the hinge, aiming to simplify the installation process of the elastic member and improve the durability of the elastic member.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] The hinge comprises: a rotating seat; a fixed seat; a swing arm, one end of the swing arm is fixed to the rotating seat, and the other end is hinged to the fixed seat; under the guidance of the swing arm, the rotating seat can rotate relative to the fixed seat between an open position, an intermediate position and a closed position in sequence; a power unit comprises an elastic member, the elastic member is arranged on the fixed seat and is transmission-connected to the swing arm, and the elastic member can be extended and retracted along its own length direction; wherein, when the rotating seat is in the open position, the elastic member is pressed and abuts against the swing arm to keep the swing arm in the current position; when the rotating seat is in the intermediate position, the swing arm rotates to a position allowing the elastic member to extend, the elastic member extends and pushes the swing arm to rotate, and driven by the swing arm, the rotating seat rotates to the closed position.

[0007] According to some embodiments of the present invention, a cam block is provided on the swing arm; when the rotating seat is in the open position, the elastic member abuts against the cam block and maintains the swing arm in the current position; when the rotating seat is in the middle position, the cam block rotates to a position allowing the elastic member to extend, the elastic member can extend and push the cam block to rotate, and driven by the cam block, the swing arm drives the rotating seat to rotate to the closed position.

[0008] According to some embodiments of the present invention, the elastic member includes an elastic body and a connecting head, the elastic body is arranged on the fixed seat, the connecting head is connected to one end of the elastic body, and the connecting head is provided with a transmission bevel; when the rotating seat is in an open position, the transmission bevel abuts against the cam block and keeps the swing arm in a current position; when the rotating seat is in an intermediate position, the elastic body can be extended to drive the connecting head to push the cam block to rotate, the transmission bevel and the outer contour of the cam block are slidably matched, and under the drive of the cam block, the swing arm drives the rotating seat to rotate to a closed position.

[0009] According to some embodiments of the present invention, the power unit further includes a damper, which is disposed on the fixed seat; when the rotating seat moves from the middle position to the closed position, the swing arm pushes the damper, and the damper is compressed to improve buffering.

[0010] According to some embodiments of the present invention, the power unit further includes a mounting shell, the mounting shell is disposed on the fixing seat, and the elastic member and the damper are both disposed in the mounting shell.

[0011] According to some embodiments of the present invention, the mounting shell is provided with a first assembly groove, and the elastic member is arranged in the first assembly groove.

[0012] According to some embodiments of the present invention, the mounting shell is provided with a second assembly groove, and the damper is arranged in the second assembly groove.

[0013] According to some embodiments of the present invention, the fixing seat is provided with an assembly cavity, a snap-fit ​​structure is provided between the mounting shell and the assembly cavity, and the mounting shell is connected to the assembly cavity via the snap-fit ​​structure.

[0014] According to some embodiments of the present invention, the second end of the damper is provided with an abutment slope; when the rotating seat moves from the middle position to the closed position, the swing arm pushes the abutment slope to move toward the first end of the damper.

[0015] According to some embodiments of the present invention, the first end of the swing arm is hinged to the fixing seat via a hinge shaft, and the cam block is disposed at the first end of the swing arm.

[0016] In summary, the hinge and the door and window system including the hinge provided by the present invention have at least the following technical effects:

[0017] When the rotating seat is in the open position, the elastic member is compressed and tightly pressed against the swing arm, and uses its own elastic force to keep the swing arm in the current position to prevent accidental closing; when the rotating seat is in the middle position, the swing arm rotates to a position that allows the elastic member to stretch, and the elastic member can begin to stretch and release the stored energy to push the swing arm to rotate, thereby driving the rotating seat to move to the closed position. In this way, on the one hand, it is easier to install the linear telescopic elastic member, and the use of the linear telescopic elastic member instead of the traditional torsion spring simplifies the installation steps and reduces the difficulty of assembly; on the other hand, compared with the rotary torsion spring, the linear telescopic elastic member has a more direct force transmission path when providing the same elastic force, and the power output is more efficient. In addition, the linear telescopic elastic member is not easy to produce fatigue in long-term use, which effectively extends the service life of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the top view of the hinge (the rotating seat is in the open position) of the first embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the top view of the hinge (the rotating seat is in the middle position) of the first embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the top view of the hinge (the rotating seat is in the closed position) of the first embodiment of the present invention;

[0021] Figure 4 It is a side structural schematic diagram of the hinge (the rotating seat is in the open position) of the first embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the side structure of the hinge (the rotating seat is in the middle position) of the first embodiment of the present invention;

[0023] Figure 6 It is a schematic side structural diagram of the hinge (the rotating seat is in a closed position) of the first embodiment of the present invention;

[0024] Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 8 for Figure 5 Schematic diagram of the cross-sectional structure in the CC direction;

[0026] Fig. 9 for Figure 6 Schematic diagram of the cross-sectional structure in the EE direction;

[0027] Fig.10 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction;

[0028] Fig.11 for Figure 5 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0029] Fig.12 for Figure 6 Schematic diagram of the cross-sectional structure in the FF direction;

[0030] Fig.13 This is a schematic diagram of the exploded structure of the hinge according to the first embodiment of the present invention;

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of the power unit of the first embodiment of the present invention;

[0032] Fig.15 This is a schematic diagram of the explosion structure of the power unit of the first embodiment of the present invention;

[0033] Fig.16 This is a schematic diagram of the assembly structure of the rotating seat and the swing arm of the first embodiment of the present invention;

[0034] Fig.17 It is a schematic diagram of the three-dimensional structure of the power unit of the second embodiment of the present invention;

[0035] Fig.18 This is a schematic diagram of the explosion structure of the power unit of the second embodiment of the present invention.

[0036] The meanings of the reference numerals are as follows:

[0037] 1. Rotating seat; 2. Fixed seat; 21. Assembly cavity; 211. Clamping slot; 3. Swing arm; 31. Articulated shaft; 32. Cam block; 4. Power unit; 41. Elastic member; 411. Elastic body; 412. Connecting head; 4121. Transmission inclined plane; 4122. Clamping slot; 4123. Positioning block; 42. Damper; 421. Abutting inclined plane; 43. Mounting shell; 431. First assembly groove; 4311. Positioning groove; 432. Second assembly groove; 433. Clamping block. DETAILED DESCRIPTION

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] Embodiment 1

[0043] See also Figures 1 to 16 The present embodiment discloses a hinge, comprising a rotating seat 1, a fixed seat 2, a swing arm 3 and a power unit 4: one end of the swing arm 3 is fixed to the rotating seat 1, and the other end is hinged to the fixed seat 2; under the guidance of the swing arm 3, the rotating seat 1 can rotate in sequence between an open position, an intermediate position and a closed position relative to the fixed seat 2; the power unit 4 comprises an elastic member 41, the elastic member 41 is arranged on the fixed seat 2 and is transmission-connected with the swing arm 3, and the elastic member 41 can be extended and retracted along its own length direction; wherein, when the rotating seat 1 is in the open position, the elastic member 41 is pressed and abuts against the swing arm 3 to keep the swing arm 3 in the current position; when the rotating seat 1 is in the intermediate position, the swing arm 3 rotates to a position allowing the elastic member 41 to extend, the elastic member 41 can extend and push the swing arm 3 to rotate, and driven by the swing arm 3, the rotating seat 1 rotates to the closed position.

[0044] Specifically, the length direction of the elastic member 41 can refer to Figure 7The e1 direction in .

[0045] A hinge disclosed in this embodiment, such as Figure 1 , Figure 4 and Figure 7 As shown, when the rotating seat 1 is in the open position, the elastic member 41 is compressed and tightly abuts against the swing arm 3, and uses its own elastic force to keep the swing arm 3 in the current position to prevent accidental closing; Figure 2 , Figure 5 and Figure 8 As shown, when the rotating seat 1 is in the middle position, the swing arm 3 rotates to a position that allows the elastic member 41 to extend, and the elastic member 41 can begin to extend and release the stored energy to push the swing arm 3 to rotate, thereby driving the rotating seat 1 to move to the closed position. The state of the rotating seat 1 in the closed position can be specifically referred to Figure 3 , Figure 6 and Fig. 9 Thus, on the one hand, it is easier to install the linear telescopic elastic member 41, and the linear telescopic elastic member 41 is used to replace the traditional torsion spring, which simplifies the installation steps and reduces the difficulty of assembly; on the other hand, compared with the rotary torsion spring, the linear telescopic elastic member 41 has a more direct force transmission path when providing the same elastic force, and the power output is more efficient. In addition, the linear telescopic elastic member 41 is not easy to produce fatigue in long-term use, which effectively prolongs the service life of the hinge.

[0046] Specifically, in this embodiment, when the rotating seat 1 rotates from the open position to the middle position, the swing arm 3 pushes the elastic member 41 to compress the elastic member 41, thereby converting the external input energy into the elastic potential energy of the elastic member 41, providing the necessary power reserve for the subsequent closing action.

[0047] Please refer to Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 Preferably, in this embodiment, the power unit 4 also includes a damper 42, which is arranged on the fixed seat 2; when the rotating seat 1 moves from the middle position to the closed position, the swing arm 3 pushes the damper 42, and the damper 42 is compressed to improve the buffering. In this way, the compression process of the damper 42 can effectively absorb the kinetic energy generated when the rotating seat 1 moves, and convert it into heat energy or other forms of energy dissipation, thereby significantly enhancing the buffering effect of the system. This design not only reduces the impact and vibration caused by sudden closing, but also improves the stability and durability of the overall structure. In addition, the addition of the damper 42 makes the closing process of the rotating seat 1 smoother, slower and more controllable. The user can experience a softer and more comfortable closing experience during use, avoiding the noise and discomfort caused by rapid closing.

[0048] Please refer to Fig.14 and Fig.15 Furthermore, in the present embodiment, the power unit 4 further comprises a mounting shell 43, the mounting shell 43 is arranged on the fixing seat 2, and the elastic member 41 and the damper 42 are both arranged in the mounting shell 43; thus, on the one hand, the elastic member 41 and the damper 42 are installed to the mounting shell 43 together, thereby realizing the modularization of the power unit 4. This modular design simplifies the installation process, reduces the number of installation steps and required parts, and the user or installer only needs to install the power unit 4 as an integral module on the fixing seat 2 to complete the installation work, thereby greatly improving the installation efficiency and convenience; on the other hand, the modular design helps to ensure the accuracy of the relative positions and matching relationships between the components of the power unit 4. Through the fixing effect of the mounting shell 43, the elastic member 41 and the damper 42 are fixed to the mounting shell 43. 41 and the damper 42 can maintain a stable installation state, avoiding performance degradation or failure due to improper installation; on the other hand, the modular design makes the maintenance and replacement of the power unit 4 easier. When the power unit 4 fails or needs maintenance, the user or maintenance personnel can easily disassemble the entire power unit 4 module without having to disassemble and inspect each component one by one, which greatly reduces the maintenance cost and time cost; on the other hand, the modular design helps to achieve standardization and interchangeability between the components of the power unit 4. Through strict quality control and testing, it can be ensured that each power unit 4 module meets the established performance standards and requirements, which helps to improve the quality and reliability of the overall product and reduce the failure rate and maintenance costs.

[0049] like Fig.14 and Fig.15 As shown, preferably, in this embodiment, the mounting shell 43 is provided with a first assembly groove 431 , the elastic member 41 is provided in the first assembly groove 431 , and one end of the elastic member 41 is connected to the groove wall of the first assembly groove 431 .

[0050] Thus, on the one hand, the first assembly groove 431 provides a precise positioning and fixing space for the elastic member 41. By arranging the elastic member 41 in the assembly groove and connecting one end of the elastic member 41 to the groove wall, the position accuracy and stability of the elastic member 41 during the installation process can be ensured. This design avoids the performance degradation or failure caused by the loosening or displacement of the elastic member 41. On the other hand, the design of the first assembly groove 431 simplifies the installation and removal process of the elastic member 41. The user or installer does not need to perform complicated operations or adjustments. They only need to put the elastic member 41 into the assembly groove and connect it to the groove wall. The design greatly improves the installation efficiency and convenience, and reduces the installation cost; on the other hand, by arranging the first assembly groove 431 on the mounting shell 43, the space can be used more effectively. The design of the first assembly groove 431 enables the elastic member 41 to be compactly installed in the mounting shell 43, avoiding the layout difficulties or performance limitations caused by insufficient space; on the other hand, the groove wall of the first assembly groove 431 can provide additional support and fixing for the elastic member 41. This design enhances the overall structural strength of the power unit 4, enables it to withstand greater loads and impact forces, and improves the stability and durability of the system.

[0051] like Fig.14 and Fig.15 As shown, preferably, in this embodiment, the mounting shell 43 is provided with a second assembly groove 432 , and the damper 42 is disposed in the second assembly groove 432 . In this way, on the one hand, the second assembly groove 432 provides a precise positioning and installation space for the damper 42, ensuring the position accuracy and stability of the damper 42 during the installation process. This design effectively avoids the displacement or loosening of the damper 42 during the installation process, thereby ensuring the overall performance and reliability of the power unit 4; on the other hand, by arranging the second assembly groove 432 on the mounting shell 43, it is possible to more efficiently utilize space resources. The design of the second assembly groove 432 enables the damper 42 to be compactly installed in the mounting shell 43, avoiding performance limitations or increased structural complexity due to improper space layout; on the other hand, the introduction of the second assembly groove 432 greatly simplifies the installation process of the damper 42. The user or installer only needs to place the damper 42 into the assembly groove and connect its first end to the groove wall to complete the installation work. This design improves installation efficiency, reduces installation costs, and makes modular installation of the power unit 4 more convenient.

[0052] Specifically, in this embodiment, the first end of the damper 42 is against the groove wall of the second assembly groove 432 or the cavity wall of the assembly cavity 21. When the rotating seat 1 moves from the middle position to the closed position, the swing arm 3 pushes the second end of the damper 42 to move toward the first end of the damper 42.

[0053] In this arrangement, the first assembly groove and the second assembly groove are used to install the elastic member 41 and the damper 42, respectively. The compact structure helps to reduce the total space required for the power unit 4, making the overall design more concise and efficient, which is conducive to improving the degree of modularization. In addition, the elastic member 41, the damper 42 and the push member can be quickly assembled into a complete module, thereby making the assembly process of the power unit 4 simpler and faster. In addition, the first assembly groove and the second assembly groove provide independent installation space for the elastic member 41 and the damper 42, reducing mutual interference between them, helping to maintain the stability and consistency of the power unit 4 during operation, and improving the overall performance.

[0054] It should be noted that, in some other embodiments, a first clip and a second clip may be provided on the mounting shell 43 but are not limited to, the first clip is used to connect the elastic member 41, and the second clip is used to connect the damper 42; or, a first threaded hole or a second threaded hole may be provided on the mounting shell 43 but are not limited to, the first threaded hole is used to be threadedly connected to one end of the elastic member 41, and the second threaded hole is used to be threadedly connected to one end of the damper 42.

[0055] like Fig.13 and Fig.14 As shown, specifically, in this embodiment, the fixing seat 2 is provided with an assembly cavity 21, and preferably, a buckle structure is provided between the mounting shell 43 and the assembly cavity 21, and the mounting shell 43 is connected to the assembly cavity 21 through the buckle structure. In this way, the design of the buckle structure enables the mounting shell 43 to be quickly and firmly connected to the assembly cavity 21 without the need for additional fasteners or tools. This plug-and-play connection method greatly simplifies the installation and disassembly process, makes the maintenance and replacement of the power unit 4 easier, improves work efficiency, reduces the difficulty of operation, and further promotes the modular design of the power unit 4.

[0056] Specifically, in this embodiment, the snap-fit ​​structure includes a snap block 433 and a snap slot 211 ; more specifically, in this embodiment, the snap block 433 is disposed on the outer side wall of the mounting shell 43 , and the snap slot 211 is disposed on the cavity wall of the assembly cavity 21 .

[0057] It should be noted that, in some other embodiments, the card slot 211 may also be disposed on the outer side wall of the mounting shell 43 , and the card block 433 may be correspondingly disposed on the cavity wall of the assembly cavity 21 .

[0058] like Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15As shown, preferably, in this embodiment, the second end of the damper 42 is provided with an abutting inclined surface 421 ; when the rotating seat 1 moves from the middle position to the closed position, the swing arm 3 pushes the abutting inclined surface 421 to move toward the first end of the damper 42 . In this way, on the one hand, when the rotating seat 1 moves from the middle position to the closed position, the swing arm 3 can smoothly push the abutting slope 421, so that the second end of the damper 42 moves toward the first end along a predetermined path. This design ensures the stability and continuity of the power unit 4 during the movement, and avoids energy loss and efficiency reduction caused by sudden changes in the motion trajectory; on the other hand, the design of the abutting slope 421 makes the contact between the swing arm 3 and the damper 42 more uniform and controllable, thereby improving the accuracy of motion control. By adjusting the angle and length of the abutting slope 421, the moving speed and position of the damper 42 can be accurately controlled to meet different application requirements; on the other hand, the direct contact between the swing arm 3 and the damper 42 often leads to greater friction and wear, and generates noise. The design of the abutting slope 421 in this embodiment effectively reduces friction and wear, reduces noise levels, and improves the durability and reliability of the system by increasing the contact area and changing the contact mode.

[0059] like Figure 7 , Figure 8 , Fig. 9 , Fig.13 , Fig.14 and 16As shown, preferably, in this embodiment, a cam block 32 is provided on the swing arm 3, and the cam block 32 and the swing arm 3 rotate synchronously; when the rotating seat 1 is in the open position, the elastic member 41 abuts against the cam block 32 and keeps the swing arm 3 in the current position; when the rotating seat 1 rotates from the open position to the middle position, the cam block 32 pushes the elastic member 41 to compress the elastic member 41; when the rotating seat 1 is in the middle position, the cam block 32 rotates to a position allowing the elastic member 41 to stretch, and the elastic member 41 can stretch and push the cam block 32 to rotate, and driven by the cam block 32, the swing arm 3 drives the rotating seat 1 to rotate to the closed position. In this way, on the one hand, when the rotating seat 1 is in the open position, the design of the cam block 32 enables the elastic member 41 to abut against it tightly, thereby firmly keeping the swing arm 3 and the entire rotating seat 1 in the current position. This locking mechanism effectively prevents accidental movement caused by external factors (such as wind, vibration, etc.), and improves the stability and safety of the system; on the other hand, in the process of the rotating seat 1 rotating from the open position to the middle position, the cam block 32, through its specific contour design, pushes the elastic member 41 and compresses it gradually. This process not only accumulates the necessary energy for the subsequent closing action, but also absorbs the impact and vibration during the rotation process through the deformation of the elastic member 41, thereby improving the stability and durability of the system; on the other hand, when the rotating seat 1 reaches the middle position, the contour design of the cam block 32 allows the elastic member 41 to begin to stretch and release the previously accumulated energy. During this process, the cam block 32 rotates under the push of the elastic member 41, thereby driving the swing arm 3 and the rotating seat 1 to complete the smooth transition from the middle position to the closed position. Due to the precise design of the contour of the cam block 32, this conversion process is not only smooth and impact-free, but also can achieve precise position control. In summary, the application of the cam block 32 makes the transition of the rotating seat 1 between the open, intermediate and closed positions smoother, more stable and more reliable, and the user can experience a smoother, more stable and more comfortable operating experience during use, thereby improving the overall satisfaction and comfort.

[0060] It should be noted that, in some other embodiments, the transmission connection between the elastic member 41 and the swing arm 3 can also be achieved through, but not limited to, a gear rack mechanism or a connecting rod mechanism, which can be selected according to actual needs and is not limited here.

[0061] like Figure 7 , Figure 8 , Fig. 9 , Fig.13 , Fig.14 and 16As shown, specifically, in the present embodiment, the elastic member 41 includes an elastic body and a connecting head 412, one end of the elastic body is connected to the groove wall of the first assembly groove, and the connecting head 412 is connected to the other end of the elastic body. Preferably, the connecting head 412 is provided with a transmission bevel 4121; when the rotating seat 1 is in the open position, the transmission bevel 4121 abuts against the cam block 32 and keeps the swing arm 3 in the current position; when the rotating seat 1 rotates from the open position to the middle position, the cam block 32 pushes the transmission bevel 4121 to compress the elastic body; when the rotating seat 1 is in the middle position, the cam block 32 rotates to a position allowing the elastic body to stretch, and the elastic body can stretch to drive the connecting head 412 to push the cam block 32 to rotate, and the transmission bevel 4121 and the outer contour of the cam block 32 are slidably matched, and driven by the cam block 32, the swing arm 3 drives the rotating seat 1 to rotate to the closed position. In this way, on the one hand, when the rotating seat 1 is in the open position, the transmission bevel 4121 is in close contact with the cam block 32, and the geometric characteristics of the bevel are used to achieve precise position locking of the swing arm 3 and the rotating seat 1. This design not only ensures the stability of the rotating seat 1 in the open state, but also effectively prevents accidental movement caused by external factors, thereby improving the safety and reliability of the system; on the other hand, in the process of the rotating seat 1 rotating from the open position to the middle position, the cam block 32 gradually pushes the transmission bevel 4121, causing the elastic body to be compressed. The design of the transmission bevel 4121 makes this process smooth and controllable, reducing the impact and vibration caused by sudden force. At the same time, through the compression of the elastic body, the system can store energy and provide power for subsequent closing actions; on the other hand, the existence of the transmission bevel 4121 enables the cam block 32 to move along a smoother trajectory during the rotation process, which helps to reduce the wear caused by friction. The sliding fit design of the transmission bevel 4121 and the outer contour of the cam block 32 further ensures smooth contact and relative movement between the two, thereby extending the service life of the hinge. In general, the application of the transmission slope 4121 makes the transition of the rotating seat 1 between the open, middle and closed positions smoother, more stable and reliable. Users can experience a smoother, more stable and comfortable operating experience during use, thereby improving overall satisfaction and convenience.

[0062] like Figure 7 , Figure 8 , Fig. 9 , Fig.13 , Fig.14 and 16 As shown, preferably, in this embodiment, the first end of the swing arm 3 is hinged to the fixing seat 2 through the hinge shaft 31, and the cam block 32 is arranged at the first end of the swing arm 3. In this way, at the same time, the cam block 32 is directly integrated at the first end of the swing arm 3, further reducing the need for additional components and simplifying the transmission system.

[0063] Preferably, in this embodiment, the elastic body is a compression spring. In this way, on the one hand, the compression spring has a stable elastic force characteristic and can provide a uniform rebound force when compressed by an external force. This characteristic enables the hinge to maintain a smooth motion trajectory during the opening and closing process, reducing the jamming or abnormal noise caused by uneven elastic force; on the other hand, the shape and size of the compression spring can be customized according to specific needs to adapt to different hinges and installation environments; on the other hand, the compression spring is made of high-quality spring steel and has high strength and durability. During long-term use, even if it is frequently compressed and released, the compression spring can maintain good elastic performance and shape stability, extending the service life of the hinge; on the other hand, the production cost of the compression spring is relatively low, and it is easy to purchase and process, which makes the hinge using the compression spring as the elastic body more competitive in price and helps to reduce the overall cost.

[0064] It should be noted that in some other embodiments, the elastic body may also be, but is not limited to, a rubber spring, a polyester spring, a fiberglass spring, a gas spring, a spring leaf spring, etc., which can be selected according to actual needs and is not limited here.

[0065] like Fig.14 , Fig.15 and Fig.16 As shown, preferably, in this embodiment, two elastic members 41 are provided, and two first assembly grooves and cam blocks 32 are also provided correspondingly. The two elastic members 41 are respectively located on both sides of the damper 42, and the two elastic members 41 are respectively in transmission cooperation with the two cam blocks 32. With such a configuration, on the one hand, by respectively providing elastic members 41 on both sides of the damper 42 and in transmission cooperation with the corresponding cam blocks 32, the force conditions in the transmission process can be effectively balanced, and the system instability caused by excessive force on one side can be reduced. This design improves the stability and accuracy of the transmission, and ensures the stability and reliability of the mechanical parts in long-term operation; on the other hand, the design of the double elastic members 41 enables the system to better bear and disperse the load, and improves the overall load-bearing capacity, which is particularly important for application scenarios that need to withstand large external forces or heavy loads, and can ensure the normal operation of the mechanical transmission and extend its service life.

[0066] like Fig.14 and Fig.15 As shown, preferably, in this embodiment, each connector 412 of the elastic member 41 is provided with a clamping groove 4122, and the clamping grooves 4122 of the two connectors 412 clamp and fix the columnar body of the damper 42. In this way, the design of the clamping groove 4122 can closely fit the columnar body of the damper 42, and through the synergistic effect of the two clamping grooves 4122, the damper 42 is effectively clamped and fixed. This design reduces the error caused by looseness or shaking, and helps to improve the degree of modularization.

[0067] It should be noted that, in some other embodiments, the number of elastic members 41 may also be, but is not limited to, 1, 3, 4, etc., which can be selected according to actual needs and is not limited here.

[0068] Embodiment 2

[0069] like Fig.17 and Fig.18 As shown, the main difference between this embodiment and the first embodiment is that the number of elastic members 41 is different. In this embodiment, only one elastic member 41 is provided to achieve the purpose of cost saving.

[0070] Furthermore, preferably, in the present embodiment, a positioning block 4123 is provided on one side of the connector 412, a positioning groove 4311 is provided on the inner side wall of the first assembly groove 431 of the mounting shell 43, and the positioning block 4123 is inserted into the positioning groove 4311. Thus, on the one hand, the matching design of the positioning block 4123 and the positioning groove 4311 provides a precise guide for the installation of the connector 412, effectively avoids the misalignment and deviation during the installation process, and ensures that the connector 412 can be accurately and correctly installed at the predetermined position. This design improves the accuracy and reliability of the installation, and provides a strong guarantee for the stable operation of the mechanical transmission; on the other hand, the plug-in mode of the positioning block 4123 and the positioning groove 4311 simplifies the installation process, making the installation process more convenient and efficient. The user only needs to align the positioning block 4123 of the connector 412 with the positioning groove 4311 of the mounting shell 43, and gently push it in to complete the installation, without the need for complicated adjustment and calibration steps, thereby reducing the difficulty and cost of installation.

[0071] In summary, the hinge disclosed in the present invention and the door and window system including the hinge can at least bring the following beneficial technical effects:

[0072] 1) It is relatively easy to install the linear telescopic elastic member 41. The linear telescopic elastic member 41 is used to replace the traditional torsion spring, which simplifies the installation steps and reduces the difficulty of assembly;

[0073] 2) Compared with the rotary torsion spring, the linearly telescopic elastic member 41 has a more direct force transmission path when providing the same elastic force, and the power output is more efficient. In addition, the linearly telescopic elastic member 41 is not prone to fatigue during long-term use, which effectively extends the service life of the hinge;

[0074] 3) The elastic member 41 and the damper 42 are installed together on the installation shell 43, realizing the modularization of the power unit 4. This modular design simplifies the installation process, reduces the number of installation steps and required parts, and the user or installer only needs to install the power unit 4 as an integral module on the fixing base 2 to complete the installation work, which greatly improves the installation efficiency and convenience;

[0075] 4) The modular design helps to ensure the accuracy of the relative positions and matching relationships between the components of the power unit 4. Through the fixing effect of the mounting shell 43, the elastic member 41 and the damper 42 can maintain a stable installation state, avoiding performance degradation or failure caused by improper installation.

[0076] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A hinge, characterized in that: include: Rotating seat (1); Fixed seat (2); a swing arm (3), one end of the swing arm (3) being fixed to the rotating seat (1), and the other end being hinged to the fixed seat (2); under the guidance of the swing arm (3), the rotating seat (1) can rotate relative to the fixed seat (2) between an open position, an intermediate position and a closed position in sequence; The power part (4) comprises an elastic member (41), wherein the elastic member (41) is arranged on the fixing seat (2) and is transmission-connected to the swing arm (3), and the elastic member (41) can be extended and retracted along its own length direction; When the rotating seat (1) is in the open position, the elastic member (41) is pressed and abuts against the swing arm (3) to keep the swing arm (3) in the current position; when the rotating seat (1) is in the middle position, the swing arm (3) rotates to a position allowing the elastic member (41) to extend, the elastic member (41) extends and pushes the swing arm (3) to rotate, and driven by the swing arm (3), the rotating seat (1) rotates to the closed position.

2. The hinge according to claim 1, characterized in that: A cam block (32) is provided on the swing arm (3); when the rotating seat (1) is in the open position, the elastic member (41) abuts against the cam block (32) and maintains the swing arm (3) in the current position; when the rotating seat (1) is in the middle position, the cam block (32) rotates to a position allowing the elastic member (41) to extend, and the elastic member (41) can extend and push the cam block (32) to rotate, and driven by the cam block (32), the swing arm (3) drives the rotating seat (1) to rotate to the closed position.

3. The hinge according to claim 2, characterized in that: The elastic member (41) comprises an elastic body (411) and a connecting head (412), the elastic body (411) is arranged on the fixing seat (2), the connecting head (412) is connected to one end of the elastic body (411), and the connecting head (412) is provided with a transmission inclined surface (4121); When the rotating seat (1) is in the open position, the transmission bevel (4121) abuts against the cam block (32) and maintains the swing arm (3) in the current position; when the rotating seat (1) is in the middle position, the elastic body (411) can be extended to drive the connecting head (412) to push the cam block (32) to rotate, and the transmission bevel (4121) and the outer contour of the cam block (32) are slidably matched. Driven by the cam block (32), the swing arm (3) drives the rotating seat (1) to rotate to the closed position.

4. The hinge according to any one of claims 1 to 3, characterized in that: The power unit (4) further comprises a damper (42), and the damper (42) is arranged on the fixed seat (2); when the rotating seat (1) moves from the middle position to the closed position, the swing arm (3) pushes against the damper (42), and the damper (42) is compressed to improve the buffering.

5. The hinge according to claim 4, characterized in that: The power unit (4) further comprises a mounting shell (43), wherein the mounting shell (43) is arranged on the fixing seat (2), and the elastic member (41) and the damper (42) are both arranged in the mounting shell (43).

6. The hinge according to claim 5, characterized in that: The mounting shell (43) is provided with a first assembly groove (431), and the elastic member (41) is arranged in the first assembly groove (431).

7. The hinge according to claim 5 or 6, characterized in that: The mounting shell (43) is provided with a second assembly groove (432), and the damper (42) is arranged in the second assembly groove (432).

8. The hinge according to claim 5, characterized in that: The fixing seat (2) is provided with an assembly cavity (21), a buckle structure is provided between the mounting shell (43) and the mounting cavity (21), and the mounting shell (43) is connected to the mounting cavity (21) via the buckle structure.

9. The hinge according to claim 2, characterized in that: The first end of the swing arm (3) is hinged to the fixing seat (2) via a hinge shaft (31), and the cam block (32) is arranged at the first end of the swing arm (3).

10. Door and window system, characterized in that, Comprising a hinge as described in any one of claims 1-9.

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