Hinge, and door and window system comprising same

Abstract

A hinge, comprising a rotatable base (1), a fixed base (2), a swing arm (3), and a power component (4). One end of the swing arm (3) is fixed to the rotatable base (1), and the other end is pivotally connected to the fixed base (2). Under the guidance of the swing arm (3), the rotatable base (1) is rotatable relative to the fixed base (2) between an open position, an intermediate position, and a closed position in sequence. The power component (4) comprises an elastic member (41). The elastic member (41) is arranged on the fixed base (2) and is in transmission connection with the swing arm (3), and the elastic member (41) is extendable and retractable in the direction of length thereof. When the rotatable base (1) is in the open position, the elastic member (41) is compressed and abuts against the swing arm (3) so as to maintain the swing arm (3) in the current position; and when the rotatable base (1) is in the intermediate position, the swing arm (3) rotates to a position that allows the elastic member (41) to extend, the elastic member (41) extends and pushes the swing arm (3) to rotate, and the rotatable base (1) is driven by the swing arm (3) to rotate to the closed position. A door and window system comprises the hinge. The hinge and the door and window system comprising same are easy to install and have a long service life.

Description

Hinges and door and window systems including the hinges

[0001] Technical Field

[0002] This application relates to the field of door and window hardware technology, and more particularly to hinges and door and window systems including the hinges. Background Technology

[0003] American-style hinges typically consist of a first base, a second base, a hinge arm, and a torsion spring. One end of the hinge arm is hinged to the first base, and the other end is fixed to the second base. Guided by the hinge arm, the second base can rotate relative to the first base sequentially between an open position, a neutral position, and a closed position. The torsion spring is located between the hinge arm and the first base. When the second base is in the open position, the spring force acts on the hinge arm to maintain its current position. When the second base is in the neutral position, the spring force acts on the hinge arm to drive it to rotate. Driven by the hinge arm, the second base can rotate to the closed position.

[0004] The existing American-style damping concealed hinge includes a first base, a second base, and a hinged arm. One end of the hinged arm is hinged to the first base, and the other end is connected to the second base. The first base has a cavity containing a damping device that can be driven by the hinged arm. First and second baffles are respectively located on the left and right sides of the damping device. A first torsion spring is located between the first baffle and the left side wall of the first base, and a second torsion spring is located between the second baffle and the right side wall of the first base. The first and second protruding legs of the first and second torsion springs respectively press on the hinged arm, and the second protruding legs of the first and second torsion springs respectively press on the first base. Because baffles are provided on the left and right sides of the damping device's cylinder to limit its lateral movement and ensure smooth back-and-forth sliding, the shape of the first base is simplified. Furthermore, the torsion springs are mounted using a support shaft provided between the baffles and the inner wall of the cavity of the first base, facilitating their installation. However, in the actual assembly process of existing American-style damped concealed hinges, the torsion spring still has many steps involved, making installation inconvenient, and the torsion spring is prone to failure after prolonged use. Summary of the Invention

[0005] In order to overcome at least one of the defects described in the prior art, this application provides a hinge and a door and window system including the hinge, which aims to simplify the installation process of the elastic element and improve the durability of the elastic element.

[0006] The technical solution adopted in this application to solve its problem is:

[0007] A hinge includes: a rotating base; a fixed base; a swing arm, one end of which is fixed to the rotating base and the other end of which is hinged to the fixed base; guided by the swing arm, the rotating base can rotate relative to the fixed base sequentially between an open position, a middle position, and a closed position; a power unit includes an elastic element, which is disposed on the fixed base and drivenly connected to the swing arm, and the elastic element can extend and retract along its own length; wherein, when the rotating base is in the open position, the elastic element is pressed against the swing arm to hold the swing arm in the current position; when the rotating base is in the middle position, the swing arm rotates to a position that allows the elastic element to extend, the elastic element extends and pushes the swing arm to rotate, and driven by the swing arm, the rotating base rotates to the closed position.

[0008] According to some embodiments of this application, the swing arm is provided with a cam block; when the rotating seat is in the open position, the elastic element abuts against the cam block and holds the swing arm in the current position; when the rotating seat is in the middle position, the cam block rotates to a position that allows the elastic element to extend, the elastic element can extend and push the cam block to rotate, and under the drive of the cam block, the swing arm drives the rotating seat to rotate to the closed position.

[0009] According to some embodiments of this application, the elastic element includes an elastic body and a connector. The elastic body is disposed on the fixed base, and the connector is connected to one end of the elastic body. The connector is provided with a transmission ramp. When the rotating base is in the open position, the transmission ramp abuts against the cam block and holds the swing arm in the current position. When the rotating base is in the intermediate position, the elastic body can extend to drive the connector to push the cam block to rotate. The transmission ramp and the outer contour of the cam block slide in cooperation. Under the drive of the cam block, the swing arm drives the rotating base to rotate to the closed position.

[0010] According to some embodiments of this application, the power unit further includes a damper disposed on the fixed seat; when the rotating seat moves from the intermediate position to the closed position, the swing arm pushes against the damper, and the damper is compressed to improve buffering.

[0011] According to some embodiments of this application, the power unit further includes a mounting housing, which is disposed on the fixed base, and the elastic element and the damper are both disposed within the mounting housing.

[0012] According to some embodiments of this application, the mounting shell is provided with a first assembly groove, and the elastic element is disposed in the first assembly groove.

[0013] According to some embodiments of this application, the mounting shell is provided with a second mounting groove, and the damper is disposed in the second mounting groove.

[0014] According to some embodiments of this application, the fixing seat is provided with an assembly cavity, and a snap-fit ​​structure is provided between the mounting shell and the assembly cavity, and the mounting shell is connected to the assembly cavity through the snap-fit ​​structure.

[0015] According to some embodiments of this application, the second end of the damper is provided with an abutting inclined surface; when the rotating seat moves from the middle position to the closed position, the swing arm pushes the abutting inclined surface to move towards the first end of the damper.

[0016] According to some embodiments of this application, the first end of the swing arm is hinged to the fixed seat via a hinge shaft, and the cam block is disposed at the first end of the swing arm.

[0017] In summary, the hinge and the door and window system including the hinge provided in this application have at least the following technical advantages:

[0018] When the rotating seat is in the open position, the elastic element is compressed and presses tightly against the swing arm, using its own elastic force to hold the swing arm in its current position and prevent accidental closure. When the rotating seat is in the intermediate position, the swing arm rotates to a position that allows the elastic element to extend. The elastic element can then extend and release its stored energy to drive the swing arm to rotate, thereby moving the rotating seat towards the closed position. Thus, on the one hand, installing a linear telescopic elastic element is easier; using a linear telescopic elastic element instead of a traditional torsion spring simplifies the installation process and reduces assembly difficulty. On the other hand, compared to a rotary torsion spring, a linear telescopic elastic element has a more direct force transmission path while providing the same elastic force, resulting in more efficient power output. Furthermore, linear telescopic elastic elements are less prone to fatigue during long-term use, effectively extending the hinge's service life.

[0019] Attached Figure Description

[0020] Figure 1 is a top view of the hinge (rotating seat in the open position) according to Embodiment 1 of this application;

[0021] Figure 2 is a top view of the hinge (with the rotating seat in the middle position) in Embodiment 1 of this application;

[0022] Figure 3 is a top view of the hinge (rotating seat in the closed position) of Embodiment 1 of this application;

[0023] Figure 4 is a side view of the hinge (rotating seat in the open position) of Embodiment 1 of this application;

[0024] Figure 5 is a side view of the hinge (with the rotating seat in the middle position) in Embodiment 1 of this application.

[0025] Figure 6 is a side view of the hinge (rotating seat in the closed position) according to Embodiment 1 of this application;

[0026] Figure 7 is a schematic diagram of the cross-sectional structure in the AA direction of Figure 4;

[0027] Figure 8 is a schematic diagram of the cross-sectional structure in the CC direction of Figure 5;

[0028] Figure 9 is a schematic diagram of the cross-sectional structure in the EE direction of Figure 6;

[0029] Figure 10 is a schematic diagram of the cross-sectional structure in the BB direction of Figure 4;

[0030] Figure 11 is a schematic diagram of the cross-sectional structure in the DD direction of Figure 5;

[0031] Figure 12 is a schematic diagram of the cross-sectional structure in the FF direction of Figure 6;

[0032] Figure 13 is an exploded structural diagram of the hinge according to Embodiment 1 of this application;

[0033] Figure 14 is a three-dimensional structural diagram of the power unit in Embodiment 1 of this application;

[0034] Figure 15 is an exploded structural diagram of the power unit in Embodiment 1 of this application;

[0035] Figure 16 is a schematic diagram of the assembly structure of the rotating seat and the swing arm in Embodiment 1 of this application;

[0036] Figure 17 is a three-dimensional structural diagram of the power unit in Embodiment 2 of this application;

[0037] Figure 18 is an exploded structural diagram of the power unit in Embodiment 2 of this application.

[0038] The meanings of the reference numerals in the attached figures are as follows:

[0039] 1. Rotating seat; 2. Fixed seat; 21. Assembly cavity; 211. Slot; 3. Swing arm; 31. Hinge shaft; 32. Cam block; 4. Power unit; 41. Elastic element; 411. Elastic body; 412. Connector; 4121. Transmission inclined surface; 4122. Clamping groove; 4123. Positioning block; 42. Damper; 421. Abutment inclined surface; 43. Mounting shell; 431. First assembly groove; 4311. Positioning groove; 432. Second assembly groove; 433. Slot.

[0040] Embodiments of the present invention

[0041] To better understand and implement this application, the technical solutions in this application will be clearly and completely described below with reference to the accompanying drawings.

[0042] In the description of this application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0044] The present application will now be described in further detail with reference to the accompanying drawings.

[0045] Example 1

[0046] Please refer to Figures 1 to 16. This embodiment discloses a hinge, including 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 relative to the fixed seat 2 in sequence between an open position, a middle position, and a closed position. The power unit 4 includes an elastic element 41, which is disposed on the fixed seat 2 and is connected to the swing arm 3 in a transmission manner. The elastic element 41 can extend and retract along its own length. When the rotating seat 1 is in the open position, the elastic element 41 is pressed 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 that allows the elastic element 41 to extend. The elastic element 41 can extend and push the swing arm 3 to rotate. Under the drive of the swing arm 3, the rotating seat 1 rotates to the closed position.

[0047] Specifically, the length direction of the elastic element 41 can be referred to as the e1 direction in Figure 7.

[0048] The hinge disclosed in this embodiment, as shown in Figures 1, 4, and 7, when the rotating seat 1 is in the open position, the elastic element 41 is compressed and tightly abuts against the swing arm 3, using its own elastic force to hold the swing arm 3 in the current position and prevent accidental closure. As shown in Figures 2, 5, and 8, when the rotating seat 1 is in the intermediate position, the swing arm 3 rotates to a position that allows the elastic element 41 to extend. The elastic element 41 can then extend and release stored energy to push the swing arm 3 to rotate, thereby driving the rotating seat 1 to move towards the closed position. The state of the rotating seat 1 in the closed position can be specifically referred to in Figures 3, 6, and 9. Thus, on the one hand, it is easier to install the linearly telescopic elastic element 41. Using the linearly telescopic elastic element 41 to replace the traditional torsion spring simplifies the installation steps and reduces the assembly difficulty. On the other hand, compared with the rotary torsion spring, the linearly telescopic elastic element 41 has a more direct force transmission path when providing the same elastic force, resulting in more efficient power output. Furthermore, the linearly telescopic elastic element 41 is less prone to fatigue during long-term use, effectively extending the service life of the hinge.

[0049] Specifically, in this embodiment, when the rotating seat 1 rotates from the open position to the middle position, the swing arm 3 pushes against the elastic element 41 to compress the elastic element 41, thereby converting the externally input energy into the elastic potential energy of the elastic element 41, providing the necessary power reserve for the subsequent closing action.

[0050] Please refer to Figures 11, 12, 13, 14, and 15. Preferably, in this embodiment, the power unit 4 further includes a damper 42, which is disposed on the fixed base 2. When the rotating base 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 buffering. In this way, the compression process of the damper 42 can effectively absorb the kinetic energy generated when the rotating base 1 moves, converting 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. Furthermore, the addition of the damper 42 makes the closing process of the rotating base 1 smoother, slower, and more controllable, allowing users to experience a softer and more comfortable closing experience, avoiding noise and discomfort caused by rapid closing.

[0051] Referring to Figures 14 and 15, further in this embodiment, the power unit 4 also includes a mounting shell 43, which is disposed on the fixed base 2. The elastic element 41 and the damper 42 are both disposed within the mounting shell 43. Thus, on the one hand, the elastic element 41 and the damper 42 are jointly mounted to the mounting shell 43, realizing the modularity of the power unit 4. This modular design simplifies the installation process, reduces the number of installation steps and required parts, and allows users or installers to complete the installation work simply by installing the power unit 4 as a whole module onto the fixed base 2, greatly improving installation efficiency and convenience. On the other hand, the modular design helps ensure the accuracy of the relative positions and mating relationships between the components of the power unit 4, through the fixing action of the mounting shell 43. The elastic element 41 and 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 simpler. When the power unit 4 fails or requires maintenance, the user or maintenance personnel can easily disassemble the entire power unit 4 module without disassembling and inspecting each component individually, which greatly reduces maintenance costs and time costs. Furthermore, 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 overall product quality and reliability, and reduce the failure rate and maintenance costs.

[0052] As shown in Figures 14 and 15, preferably, in this embodiment, the mounting shell 43 is provided with a first assembly groove 431, and an elastic member 41 is provided in the first assembly groove 431, with one end of the elastic member 41 connected to the groove wall of the first assembly groove 431.

[0053] Thus, on the one hand, the first assembly slot 431 provides a precise positioning and fixing space for the elastic element 41. By placing the elastic element 41 in the assembly slot and connecting one end of it to the slot wall, the accuracy and stability of the elastic element 41's position during installation can be ensured. This design avoids performance degradation or malfunction caused by loosening or displacement of the elastic element 41. On the other hand, the design of the first assembly slot 431 simplifies the installation and disassembly process of the elastic element 41. Users or installers do not need to perform complex operations or adjustments; they only need to place the elastic element 41 into the assembly slot and connect it to the slot wall. The design greatly improves installation efficiency and convenience, and reduces installation costs. On the other hand, by setting the first mounting groove 431 on the mounting shell 43, space can be utilized more effectively. The design of the first mounting groove 431 allows the elastic element 41 to be compactly installed in the mounting shell 43, avoiding layout difficulties or performance limitations caused by insufficient space. Furthermore, the groove wall of the first mounting groove 431 can provide additional support and fixation for the elastic element 41. This design enhances the overall structural strength of the power unit 4, enabling it to withstand greater loads and impacts, and improving the stability and durability of the system.

[0054] As shown in Figures 14 and 15, preferably, in this embodiment, the mounting shell 43 is provided with a second mounting groove 432, and the damper 42 is disposed in the second mounting groove 432. Thus, on the one hand, the second assembly slot 432 provides a precise positioning and installation space for the damper 42, ensuring the accuracy and stability of the damper 42's position during installation. This design effectively avoids possible displacement or loosening of the damper 42 during installation, thereby ensuring the overall performance and reliability of the power unit 4. On the other hand, by setting the second assembly slot 432 on the mounting shell 43, space resources can be utilized more efficiently. The design of the second assembly slot 432 allows the damper 42 to be compactly installed within the mounting shell 43, avoiding performance limitations or increased structural complexity due to improper spatial layout. Furthermore, the introduction of the second assembly slot 432 greatly simplifies the installation process of the damper 42. Users or installers only need to place the damper 42 into the assembly slot and connect its first end to the slot wall to complete the installation. This design improves installation efficiency, reduces installation costs, and makes the modular installation of the power unit 4 more convenient.

[0055] Specifically, in this embodiment, the first end of the damper 42 abuts 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 towards the first end of the damper 42.

[0056] With this configuration, the first and second assembly slots are used to install the elastic element 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 simpler and more efficient, which is conducive to improving the degree of modularity. Furthermore, the elastic element 41, the damper 42, and the pusher can be quickly assembled into a complete module, making the assembly process of the power unit 4 simpler and faster. In addition, the first and second assembly slots provide independent installation space for the elastic element 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.

[0057] It should be noted that in some other embodiments, a first buckle and a second buckle may be provided on the mounting shell 43, not limited to the first buckle being used to connect the elastic member 41 and the second buckle being used to connect the damper 42. Alternatively, a first threaded hole or a second threaded hole may be provided on the mounting shell 43, not limited to the first threaded hole being used to thread one end of the elastic member 41 and the second threaded hole being used to thread one end of the damper 42.

[0058] As shown in Figures 13 and 14, specifically in this embodiment, the fixing base 2 is provided with an assembly cavity 21. Preferably, a snap-fit ​​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 snap-fit ​​structure. Thus, the snap-fit ​​structure design allows the mounting shell 43 to be quickly and securely 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, making the maintenance and replacement of the power unit 4 simpler, improving work efficiency, reducing operational difficulty, and further promoting the modular design of the power unit 4.

[0059] Specifically, in this embodiment, the snap-fit ​​structure includes a snap-fit ​​block 433 and a snap-fit ​​groove 211; more specifically, in this embodiment, the snap-fit ​​block 433 is disposed on the outer side wall of the mounting shell 43, and the snap-fit ​​groove 211 is disposed on the cavity wall of the assembly cavity 21.

[0060] It should be noted that in some other embodiments, the slot 211 may be disposed on the outer wall of the mounting shell 43, and the corresponding block 433 may be disposed on the cavity wall of the assembly cavity 21.

[0061] As shown in Figures 11, 12, 13, 14 and 15, 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 against the abutting inclined surface 421 and moves toward the first end of the damper 42. Thus, 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 against the abutment surface 421, causing the second end of the damper 42 to move towards the first end along a predetermined path. This design ensures the stability and continuity of the power unit 4 during movement, avoiding energy loss and efficiency reduction caused by sudden changes in the motion trajectory. On the other hand, the design of the abutment surface 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 abutment surface 421, the moving speed and position of the damper 42 can be precisely controlled to meet different application requirements. Furthermore, direct contact between the swing arm 3 and the damper 42 often leads to greater friction and wear, while also generating noise. However, the abutment surface 421 design in this embodiment, by increasing the contact area and changing the contact method, effectively reduces friction and wear, lowers the noise level, and improves the durability and reliability of the system.

[0062] As shown in Figures 7, 8, 9, 13, 14, and 16, preferably, in this embodiment, the swing arm 3 is provided with a cam block 32, and the cam block 32 and the swing arm 3 rotate synchronously. When the rotating seat 1 is in the open position, the elastic element 41 abuts against the cam block 32 and holds 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 against the elastic element 41 to compress the elastic element 41. When the rotating seat 1 is in the middle position, the cam block 32 rotates to a position that allows the elastic element 41 to extend. The elastic element 41 can extend and push the cam block 32 to rotate. Under the drive of the cam block 32, the swing arm 3 drives the rotating seat 1 to rotate to the closed position. Thus, on the one hand, when the rotating seat 1 is in the open position, the design of the cam block 32 allows the elastic element 41 to abut against it tightly, thereby firmly holding 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.), improving the stability and safety of the system. On the other hand, during the rotation of the rotating seat 1 from the open position to the middle position, the cam block 32, through its specific contour design, pushes against the elastic element 41 and gradually compresses it. 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 element 41, improving the stability and durability of the system. Furthermore, when the rotating seat 1 reaches the middle position, the contour design of the cam block 32 allows the elastic element 41 to begin to extend and release the previously accumulated energy. During this process, the cam block 32 rotates under the push of the elastic element 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 cam block 32 contour, this transition process is not only smooth and shock-free, but also enables precise position control. In summary, the application of cam block 32 makes the transition of rotary seat 1 between open, intermediate and closed positions smoother, more stable and reliable. Users can experience a smoother, more stable and more comfortable operation during use, thereby improving overall satisfaction and comfort.

[0063] It should be noted that in some other embodiments, the elastic element 41 and the swing arm 3 can also be connected by a gear and rack mechanism or a linkage mechanism, but not limited to that. The choice can be made according to actual needs, and no single limitation is made here.

[0064] As shown in Figures 7, 8, 9, 13, 14, and 16, specifically in this embodiment, the elastic element 41 includes an elastic body and a connector 412. One end of the elastic body is connected to the wall of the first assembly groove, and the connector 412 is connected to the other end of the elastic body. Preferably, the connector 412 is provided with a transmission ramp 4121. When the rotating seat 1 is in the open position, the transmission ramp 4121 abuts against the cam block 32 and holds 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 against the transmission ramp 4121 to compress the elastic body. When the rotating seat 1 is in the middle position, the cam block 32 rotates to a position that allows the elastic body to extend. The elastic body can extend to drive the connector 412 to push the cam block 32 to rotate. The outer contours of the transmission ramp 4121 and the cam block 32 slide together. Under the drive of the cam block 32, the swing arm 3 drives the rotating seat 1 to rotate to the closed position. Thus, on the one hand, when the rotating seat 1 is in the open position, the transmission inclined surface 4121 is in close contact with the cam block 32. Utilizing the geometric characteristics of the inclined surface, precise position locking of the swing arm 3 and the rotating seat 1 is achieved. 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, improving the safety and reliability of the system. On the other hand, as the rotating seat 1 rotates from the open position to the middle position, the cam block 32 gradually pushes against the transmission inclined surface 4121, causing the elastic body to be compressed. The design of the transmission inclined surface 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 to provide power for the subsequent closing action. Furthermore, the presence of the transmission inclined surface 4121 allows the cam block 32 to move along a smoother trajectory during rotation, which helps reduce wear caused by friction. The sliding fit design of the transmission inclined surface 4121 and the outer contour of the cam block 32 further ensures smooth contact and relative movement between the two, extending the service life of the hinge. In summary, the application of the transmission inclined plane 4121 makes the transition of the rotating seat 1 between the open, intermediate and closed positions smoother, more stable and reliable. Users can experience a smoother, more stable and more comfortable operation during use, thereby improving overall satisfaction and convenience.

[0065] As shown in Figures 7, 8, 9, 13, 14, and 16, preferably, in this embodiment, the first end of the swing arm 3 is hinged to the fixed base 2 via a hinge shaft 31, and the cam block 32 is disposed at the first end of the swing arm 3. Thus, the cam block 32 is directly integrated into the first end of the swing arm 3, further reducing the need for additional components and simplifying the transmission system.

[0066] Preferably, in this embodiment, the elastic body is a compression spring. This has several advantages: First, the compression spring possesses stable elasticity, providing a uniform rebound force when compressed by external forces. This characteristic allows the hinge to maintain a smooth movement trajectory during opening and closing, reducing jamming or abnormal noise caused by uneven elasticity. Second, the shape and size of the compression spring can be customized to suit different hinges and installation environments. Third, the compression spring is made of high-quality spring steel, possessing high strength and durability. Even under frequent compression and release during long-term use, the compression spring maintains good elasticity and shape stability, extending the hinge's service life. Fourth, the production cost of the compression spring is relatively low, and it is easy to procure and process, making hinges using compression springs as the elastic body more price-competitive and helping to reduce overall costs.

[0067] 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, or a leaf spring, etc., and can be selected according to actual needs, without being limited to a single one.

[0068] As shown in Figures 14, 15, and 16, preferably, in this embodiment, two elastic elements 41 are provided, and two corresponding first mounting slots and two cam blocks 32 are also provided. The two elastic elements 41 are located on both sides of the damper 42, and the two elastic elements 41 are respectively engaged with the two cam blocks 32. This arrangement, on the one hand, by providing elastic elements 41 on both sides of the damper 42 and engaging with the corresponding cam blocks 32, effectively balances the force during transmission, reducing system instability caused by excessive force on one side. This design improves the smoothness and accuracy of transmission, ensuring the stability and reliability of mechanical components during long-term operation. On the other hand, the design of double elastic elements 41 allows the system to better bear and distribute the load, improving the overall load-bearing capacity. This is particularly important for applications requiring large external forces or heavy loads, ensuring the normal operation of the mechanical transmission and extending its service life.

[0069] As shown in Figures 14 and 15, preferably, in this embodiment, each connector 412 of the elastic element 41 is provided with a clamping groove 4122, and the clamping grooves 4122 of the two connectors 412 clamp and fix the cylindrical body of the damper 42. Thus, the design of the clamping grooves 4122 allows for a tight fit against the cylindrical body of the damper 42. Through the synergistic effect of the two clamping grooves 4122, effective clamping and fixing of the damper 42 is achieved. This design reduces errors caused by loosening or shaking and helps improve the modularity.

[0070] It should be noted that in some other embodiments, the number of elastic elements 41 may be, but is not limited to, 1, 3 or 4, etc., and can be selected according to actual needs. There is no unique limitation here.

[0071] Example 2

[0072] As shown in Figures 17 and 18, the main difference between this embodiment and Embodiment 1 is that the number of elastic elements 41 is different. In this embodiment, only one elastic element 41 is provided to save costs.

[0073] Furthermore, preferably, in this embodiment, a positioning block 4123 is provided on one side of the connector 412, and a positioning groove 4311 is provided on the inner sidewall of the first assembly groove 431 of the mounting shell 43, with the positioning block 4123 inserted into the positioning groove 4311. Thus, on the one hand, the cooperative design of the positioning block 4123 and the positioning groove 4311 provides precise guidance for the installation of the connector 412, effectively avoiding misalignment and deviation during installation, ensuring that the connector 412 can be accurately and error-free installed in the predetermined position. This design improves the accuracy and reliability of installation, providing a strong guarantee for the stable operation of the mechanical transmission. On the other hand, the insertion method of the positioning block 4123 and the positioning groove 4311 simplifies the installation process, making it more convenient and efficient. Users only need 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 complex adjustment and calibration steps, reducing installation difficulty and cost.

[0074] In summary, the hinge disclosed in this application and the door and window system including the hinge can bring at least the following beneficial technical effects:

[0075] 1) Installing the linear telescopic elastic element 41 is relatively easy. Replacing the traditional torsion spring with the linear telescopic elastic element 41 simplifies the installation steps and reduces the assembly difficulty.

[0076] 2) Compared with rotary torsion springs, linear telescopic elastic element 41 has a more direct force transmission path when providing the same elastic force, resulting in more efficient power output. Furthermore, linear telescopic elastic element 41 is less prone to fatigue during long-term use, effectively extending the service life of the hinge.

[0077] 3) The elastic element 41 and the damper 42 are installed together on the mounting 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. Users or installers only need to install the power unit 4 as a whole module onto the fixed base 2 to complete the installation work, which greatly improves the installation efficiency and convenience.

[0078] 4) Modular design helps ensure the accuracy of the relative positions and fit between the components of the power unit 4. Through the fixing effect of the mounting shell 43, the elastic element 41 and the damper 42 can maintain a stable installation state, avoiding performance degradation or failure due to improper installation.

Claims

1. Hinges, including: Rotating seat (1); Fixture (2); A swing arm (3) is fixed at one end to the rotating seat (1) and hinged at the other end 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) in sequence between the open position, the middle position and the closed position. The power unit (4) includes an elastic element (41), which is disposed on the fixed base (2) and is connected to the swing arm (3) in a transmission manner. The elastic element (41) can extend and retract along its own length direction. When the rotating seat (1) is in the open position, the elastic element (41) is pressed 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 that allows the elastic element (41) to extend, the elastic element (41) extends and pushes the swing arm (3) to rotate, and under the drive of the swing arm (3), the rotating seat (1) rotates to the closed position.

2. The hinge according to claim 1, wherein, A cam block (32) is provided on the swing arm (3); when the rotating seat (1) is in the open position, the elastic element (41) abuts against the cam block (32) and holds 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 that allows the elastic element (41) to extend, the elastic element (41) can extend and push the cam block (32) to rotate, and under the drive of 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, wherein, The elastic element (41) includes an elastic body (411) and a connector (412). The elastic body (411) is disposed on the fixed base (2), and the connector (412) is connected to one end of the elastic body (411). The connector (412) is provided with a transmission inclined surface (4121). When the rotating seat (1) is in the open position, the transmission inclined surface (4121) abuts against the cam block (32) and holds the swing arm (3) in the current position; when the rotating seat (1) is in the middle position, the elastic body (411) can extend to drive the connector (412) to push the cam block (32) to rotate. The outer contours of the transmission inclined surface (4121) and the cam block (32) slide together. Under the drive of 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 1-3, wherein, The power unit (4) also includes a damper (42), which is disposed 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 buffer.

5. The hinge according to claim 4, wherein, The power unit (4) also includes a mounting shell (43), which is disposed on the fixed base (2). The elastic element (41) and the damper (42) are both disposed inside the mounting shell (43).

6. The hinge according to claim 5, wherein, The mounting shell (43) is provided with a first assembly groove (431), and the elastic element (41) is disposed in the first assembly groove (431).

7. The hinge according to claim 5 or 6, wherein, The mounting housing (43) is provided with a second mounting groove (432), and the damper (42) is disposed in the second mounting groove (432).

8. The hinge according to claim 5, wherein, The fixed base (2) is provided with an assembly cavity (21), and a snap-fit ​​structure is provided between the mounting shell (43) and the assembly cavity (21). The mounting shell (43) is connected to the assembly cavity (21) through the snap-fit ​​structure.

9. The hinge according to claim 2, wherein, The first end of the swing arm (3) is hinged to the fixed seat (2) via a hinge shaft (31), and the cam block (32) is disposed at the first end of the swing arm (3).

10. A door and window system, including a hinge as described in any one of claims 1-9.

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