Hinge and door and window system comprising same

Abstract

The utility model 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 utility model relates to door and window hardware fitting technical field especially hinge and door and window system including the hinge. BACKGROUND

[0002] The American hinge usually includes first base, second base, hinged swing arm and torsion spring, one end of the hinged swing arm is hinged to the first base, the other end is fixed to the second base, under the guidance of the hinged swing arm, the second base can be turned to the opening position, the intermediate position and the closing position in turn relative to the first base, the torsion spring is arranged between the hinged swing arm and the first base, when the second base is in the opening position, the elastic force of the torsion spring can act on the hinged swing arm to maintain the current position of the hinged swing arm, when the second base is in the intermediate position, the elastic force of the torsion spring can act on the hinged swing arm to drive the hinged swing arm to rotate, under the driving of the hinged swing arm, the second base can be rotated to the closing position.

[0003] The utility model discloses a kind of American damping concealed hinges, including first base, second base, hinged swing arm, wherein one end of the hinged swing arm is hinged to the first base, the other end of the hinged swing arm is connected with the second base, cavity is equipped on the first base, the cavity is equipped with the damping device that can be driven by hinged swing arm, left and right sides of damping device are equipped with first, second baffle respectively, first torsion spring is arranged between the first baffle and the left side wall of first base, second torsion spring is arranged between the second baffle and the right side wall of first base, the first extension foot of first torsion spring and the first extension foot of second torsion spring are pressed on hinged swing arm respectively, the second extension foot of first torsion spring and the second extension foot of second torsion spring are pressed on first base respectively. The utility model is equipped with baffle on the left and right sides of the cylinder body of damping device respectively, for limiting left and right sides of cylinder body, guarantee cylinder body to slide back and forth stably, so that the shape of first base becomes simple, in addition, torsion spring is installed by using the support shaft of the inner wall of the cavity of first base and baffle, and the installation of torsion spring is facilitated. However, in actual assembly process, the assembly of torsion spring still has the problem of more steps, and the installation is still not convenient, and after long time use, torsion spring is easy to fail. SUMMARY

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

[0005] The utility model discloses a technical scheme adopted to solve the problems is:

[0006] The hinge comprises a rotating base, a fixed base, a swing arm, the swing arm is fixed to the rotating base at one end and is hingedly connected to the fixed base at the other end, the rotating base can be rotated relative to the fixed base in sequence between an open position, an intermediate position and a closed position under the guidance of the swing arm, a power unit comprising an elastic member, the elastic member is arranged on the fixed base and is in transmission connection with the swing arm, the elastic member can be stretched and contracted along the length direction of the elastic member, when the rotating base is in the open position, the elastic member is pressed against the swing arm to keep the swing arm in the current position, when the rotating base is in the intermediate position, the swing arm is rotated to a position allowing the elastic member to be stretched, the elastic member is stretched and pushes the swing arm to rotate, under the guidance of the swing arm, the rotating base is rotated to the closed position.

[0007] According to some embodiments of the present application, a cam block is arranged on the swing arm, when the rotating base is in the open position, the elastic member is pressed against the cam block to keep the swing arm in the current position, when the rotating base is in the intermediate position, the cam block is rotated to a position allowing the elastic member to be stretched, the elastic member can be stretched and pushes the cam block to rotate, under the guidance of the cam block, the swing arm drives the rotating base to rotate to the closed position.

[0008] According to some embodiments of the present application, the elastic member comprises an elastic body and a connecting head, the elastic body is arranged on the fixed base, the connecting head is connected to one end of the elastic body, and the connecting head is provided with a transmission inclined surface, when the rotating base is in the open position, the transmission inclined surface is pressed against the cam block to keep the swing arm in the current position, when the rotating base is in the intermediate position, the elastic body can be stretched to drive the connecting head to push the cam block to rotate, the transmission inclined surface and the outer contour of the cam block are in sliding fit, under the guidance of the cam block, the swing arm drives the rotating base to rotate to the closed position.

[0009] According to some embodiments of the present application, the power unit further comprises a damper, the damper is arranged on the fixed base, when the rotating base moves from the intermediate position to the closed position, the swing arm pushes the damper, and the damper is pressed to improve the buffering.

[0010] According to some embodiments of the present application, the power unit further comprises a mounting shell, the mounting shell is arranged on the fixed base, and the elastic member and the damper are arranged in the mounting shell.

[0011] According to some embodiments of the present application, 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 application, 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 application, the fixing seat is provided with an assembly cavity, a buckle structure is arranged between the mounting shell and the assembly cavity, and the mounting shell is connected to the assembly cavity through the buckle structure.

[0014] According to some embodiments of the present 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.

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

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

[0017] When the rotating seat is in the open position, the elastic member is compressed and tightly abuts against the swing arm, and the swing arm is kept in the current position by the elastic force of the elastic member to prevent accidental closing; when the rotating seat is in the middle position, the swing arm is rotated to a position allowing the elastic member to stretch, and the elastic member can start 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 relatively easy to install the linearly retractable elastic member, and the linearly retractable elastic member is used to replace the traditional torsional spring, thereby simplifying the installation steps and reducing the assembly difficulty; on the other hand, compared with the rotary torsional spring, the linearly retractable elastic member has a more direct force transmission path when providing the same elastic force, the power output is more efficient, and the linearly retractable elastic member is not prone to fatigue in long-term use, thereby effectively prolonging the service life of the hinge. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a top view of the hinge according to the first embodiment of the present application (the rotating seat is in the open position);

[0019] Figure 2 FIG. 2 is a top view of the hinge according to the first embodiment of the present application (the rotating seat is in the middle position);

[0020] Figure 3 FIG. 3 is a top view of the hinge according to the first embodiment of the present application (the rotating seat is in the closed position);

[0021] Figure 4 FIG. 4 is a side view of the hinge according to the first embodiment of the present application (the rotating seat is in the open position);

[0022] Figure 5 FIG. 5 is a side view of the hinge according to the first embodiment of the present application (the rotating seat is in the middle position);

[0023] Figure 6 The side view structure schematic diagram of the hinge (the rotating seat is in the closed position) of the embodiment one of the utility model;

[0024] Figure 7 For Figure 4 The cross section structure schematic diagram in A-A direction;

[0025] Figure 8 For Figure 5 The cross section structure schematic diagram in C-C direction;

[0026] Figure 9 For Figure 6 The cross section structure schematic diagram in E-E direction;

[0027] Figure 10 For Figure 4 The cross section structure schematic diagram in B-B direction;

[0028] Figure 11 For Figure 5 The cross section structure schematic diagram in D-D direction;

[0029] Figure 12 For Figure 6 The cross section structure schematic diagram in F-F direction;

[0030] Figure 13 The explosion structure schematic diagram of the hinge of the embodiment one of the utility model;

[0031] Figure 14 The three-dimensional structure schematic diagram of the power part of the embodiment one of the utility model;

[0032] Figure 15 The explosion structure schematic diagram of the power part of the embodiment one of the utility model;

[0033] Figure 16 The assembly structure schematic diagram of the rotating seat and the swing arm of the embodiment one of the utility model;

[0034] Figure 17 The three-dimensional structure schematic diagram of the power part of the embodiment two of the utility model;

[0035] Figure 18 The explosion structure schematic diagram of the power part of the embodiment two of the utility model.

[0036] Among them, the meaning of the reference sign is as follows:

[0037] 1, rotating seat; 2, fixed seat; 21, assembly cavity; 211, clamping groove; 3, swing arm; 31, hinged shaft; 32, cam block; 4, power part; 41, elastic member; 411, elastic body; 412, connecting head; 4121, transmission inclined surface; 4122, clamping groove; 4123, positioning block; 42, damper; 421, abutting inclined surface; 43, mounting shell; 431, first assembly groove; 4311, positioning groove; 432, second assembly groove; 433, clamping block. DETAILED DESCRIPTION

[0038] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0039] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

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

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

[0042] Embodiment one

[0043] Please refer to Figures 1 to 16 The embodiment discloses a hinge, which comprises a rotating seat 1, a fixed seat 2, a swing arm 3 and a power part 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 be sequentially rotated between an open position, an intermediate position and a closed position relative to the fixed seat 2; the power part 4 comprises an elastic member 41, the elastic member 41 is arranged on the fixed seat 2 and is in transmission connection with the swing arm 3, and the elastic member 41 can be stretched along the length direction thereof; 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 is rotated to a position allowing the elastic member 41 to be stretched, the elastic member 41 can be stretched and push the swing arm 3 to rotate, and under the driving of the swing arm 3, the rotating seat 1 is rotated to the closed position.

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

[0045] A hinge disclosed in the embodiment is shown in the following figures. Figure 1 Figure 4 Figure 7 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 the swing arm 3 is kept in the current position by the elastic force of the elastic member 41 to prevent accidental closing. Figure 2 Figure 5 Figure 8 When the rotating seat 1 is in the intermediate position, the swing arm 3 is rotated to a position allowing the elastic member 41 to expand, and the elastic member 41 can start to expand and release the stored energy to push the swing arm 3 to rotate, thereby moving the rotating seat 1 to the closed position. The state of the rotating seat 1 in the closed position can refer to the following figures. Figure 3 Figure 6 Figure 9 In this way, on the one hand, it is easier to install the linearly retractable elastic member 41, and the linearly retractable elastic member 41 is used to replace the traditional torsion spring, which simplifies the installation steps and reduces the assembly difficulty. On the other hand, compared with the rotary torsion spring, the linearly retractable 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 retractable elastic member 41 is not prone to fatigue in long-term use, effectively prolonging the service life of the hinge.

[0046] Specifically, in the embodiment, when the rotating seat 1 rotates from the open position to the intermediate 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 necessary power reserve for the subsequent closing action.

[0047] Please refer to the following figures. Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Preferably, in the embodiment, the power part 4 further comprises a damper 42, which is arranged on the fixed seat 2. When the rotating seat 1 moves from the intermediate position to the closed position, the swing arm 3 pushes the damper 42, and the damper 42 is compressed to improve the buffering effect. 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 more smooth, slow and controllable, and users can feel a more soft and comfortable closing experience in the use process, avoiding the noise and discomfort caused by rapid closing. ​​​​​​​​​​​

[0048] Please refer to Figure 14 and Figure 15 Further, in the present embodiment, the power part 4 further comprises a mounting shell 43, which is arranged on the fixing base 2, and the elastic member 41 and the damper 42 are both arranged in the mounting shell 43; in this way, on the one hand, the elastic member 41 and the damper 42 are jointly mounted to the mounting shell 43, realizing the modularization of the power part 4, and such a modular design simplifies the installation process, reduces the number of installation steps and required parts, and users or installers only need to install the power part 4 as a whole module on the fixing base 2 to complete the installation work, greatly improving the installation efficiency and convenience; on the other hand, the modular design helps to ensure the accuracy of the relative position and cooperation relationship between the components of the power part 4, and 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; on the other hand, the modular design makes the maintenance and replacement of the power part 4 much simpler, when the power part 4 fails or needs to be maintained, users or maintenance personnel can easily disassemble the entire power part 4 module without the need to disassemble and check each component one by one, which greatly reduces the maintenance cost and time cost; on the other hand, the modular design helps to realize the standardization and interchangeability between the components of the power part 4, and through strict quality control and testing, it can be ensured that each power part 4 module meets the established performance standards and requirements, which helps to improve the overall product quality and reliability, reduce the failure rate and maintenance cost.

[0049] As shown in Figure 14 and Figure 15 , preferably, in the present embodiment, the mounting shell 43 is provided with a first assembly groove 431, the elastic member 41 is arranged 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 installation can be ensured. This design avoids performance degradation or failure caused by loosening or displacement of the elastic member 41. On the other hand, the design of the first assembly groove 431 simplifies the installation and disassembly process of the elastic member 41. Users or installers do not need to perform complex operations or adjustments. They only need to place the elastic member 41 in the assembly groove and connect it to the groove wall. This design greatly improves installation efficiency and convenience and reduces installation costs. On the other hand, by providing the first assembly groove 431 on the installation shell 43, space can be used more effectively. The design of the first assembly groove 431 allows the elastic member 41 to be compactly installed in the installation shell 43, avoiding layout difficulties or performance limitations due to insufficient space. On the other hand, the groove wall of the first assembly groove 431 can provide additional support and fixation for the elastic member 41. This design enhances the overall structural strength of the power part 4, enabling it to withstand greater loads and impact forces, improving system stability and durability.

[0051] As shown in Figure 14 and Figure 15 , preferably, in the present embodiment, the installation shell 43 is provided with a second assembly groove 432, and the damper 42 is arranged in the second assembly groove 432. Thus, 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 installation. This design effectively avoids displacement or loosening of the damper 42 during installation, thereby ensuring the overall performance and reliability of the power part 4. On the other hand, by providing the second assembly groove 432 on the installation shell 43, space resources can be used more efficiently. The design of the second assembly groove 432 allows the damper 42 to be compactly installed in the installation 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. Users or installers only need to place the damper 42 in the assembly groove and connect the first end of the damper 42 to the groove wall to complete the installation. This design improves installation efficiency, reduces installation costs, and makes modular installation of the power part 4 more convenient.

[0052] Specifically, in the present embodiment, the first end of the damper 42 is arranged 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.

[0053] In this way, the first assembly groove and the second assembly groove are respectively used for mounting the elastic member 41 and the damper 42, and the compact structure helps to reduce the total space required by the power part 4, so that the overall design is more concise and efficient, which is conducive to improving the modularization, and the elastic member 41, the damper 42 and the pushing member can be quickly assembled into a complete module, so that the assembly process of the power part 4 is more simple and fast; in addition, the first assembly groove and the second assembly groove provide independent mounting space for the elastic member 41 and the damper 42, reducing the mutual interference between them, which helps to maintain the stability and consistency of the power part 4 during work, and improves the overall performance.

[0054] It should be noted that in some other embodiments, a first buckle and a second buckle can also be provided on the mounting shell 43, the first buckle is used to connect the elastic member 41, and the second buckle is used to connect the damper 42, or a first threaded hole and a second threaded hole can also be provided on the mounting shell 43, the first threaded hole is used for threaded connection with one end of the elastic member 41, and the second threaded hole is used for threaded connection with one end of the damper 42.

[0055] As shown in Figure 13 and Figure 14 , specifically, in the present embodiment, the fixed seat 2 is provided with an assembly cavity 21, 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 greatly simplifies the installation and disassembly process, making maintenance and replacement of the power part 4 much simpler, improving work efficiency, reducing operation difficulty, and further promoting the modular design of the power part 4.

[0056] Specifically, in the present embodiment, the buckle structure includes a clamping block 433 and a clamping groove 211; more specifically, in the present embodiment, the clamping block 433 is arranged on the outer side wall of the mounting shell 43, and the clamping groove 211 is arranged on the cavity wall of the assembly cavity 21.

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

[0058] As shown in Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15As shown, preferably, in the present embodiment, the second end of the damper 42 is provided with an abutting slope 421; when the rotating seat 1 moves from the middle position to the closed position, the swing arm 3 pushes the abutting slope 421 to move towards 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, making the second end of the damper 42 move along a predetermined path towards the first end, which ensures the stability and continuity of the power part 4 during movement, avoiding energy loss and efficiency decline caused by sudden changes in movement 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 movement control; by adjusting the angle and length of the abutting slope 421, the movement speed and position of the damper 42 can be accurately controlled to meet different application requirements; on the other hand, direct contact between the swing arm 3 and the damper 42 often causes large friction and wear, as well as noise, while the abutting slope 421 design in the present embodiment effectively reduces friction and wear by increasing the contact area and changing the contact method, thereby reducing noise level and improving the durability and reliability of the system.

[0059] As Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 14 and 16As shown, preferably, in the present embodiment, the swing arm 3 is provided with a cam block 32, which rotates synchronously with 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 keeps the swing arm 3 in the current position; when the rotating seat 1 rotates from the open position to the intermediate position, the cam block 32 pushes the elastic member 41 to compress the elastic member 41; when the rotating seat 1 is in the intermediate position, the cam block 32 rotates to a position allowing the elastic member 41 to expand, the elastic member 41 can expand 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. In this way, on the one hand, when the rotating seat 1 is in the open position, the design of the cam block 32 allows the elastic member 41 to abut against it tightly, thereby stably 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.), improving the stability and safety of the system; on the other hand, in the process of rotating the rotating seat 1 from the open position to the intermediate position, the cam block 32 pushes the elastic member 41 and gradually compresses it through its specific profile design, which not only accumulates the necessary energy for the subsequent closing action, but also absorbs the impact and vibration in the rotating process through the deformation of the elastic member 41, improving the smoothness and durability of the system; on the other hand, when the rotating seat 1 reaches the intermediate position, the profile design of the cam block 32 allows the elastic member 41 to start expanding and releasing the energy accumulated before, in this process, the cam block 32 rotates under the push of the elastic member 41, and then drives the swing arm 3 and the rotating seat 1 to complete the smooth conversion from the intermediate position to the closed position, due to the precise design of the profile of the cam block 32, this conversion process is not only smooth and impact-free, but also can realize precise position control. In summary, the application of the cam block 32 makes the conversion of the rotating seat 1 between the open, intermediate and closed positions more smooth, stable and reliable, and users can feel a more smooth, stable and comfortable operation experience in the use process, 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 but not limited to a gear and rack mechanism or a connecting rod mechanism, which can be selected according to actual needs, and is not limited herein.

[0061] As Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 14 and 16As shown, specifically, in the present embodiment, the elastic member 41 comprises an elastic body and a connecting head 412, one end of the elastic body is connected to the slot wall of the first assembly slot, 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 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 keeps the swing arm 3 in the current position; when the rotating seat 1 rotates from the open position to the intermediate position, the cam block 32 pushes the transmission inclined surface 4121 to compress the elastic body; when the rotating seat 1 is in the intermediate position, the cam block 32 rotates to a position allowing the elastic body to expand, the elastic body can expand to drive the connecting head 412 to push the cam block 32 to rotate, the transmission inclined surface 4121 and the outer contour of the cam block 32 are in sliding fit, under the drive of 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 inclined surface 4121 is in close contact with the cam block 32, and by using the geometric characteristics of the inclined surface, the accurate position locking of the swing arm 3 and the rotating seat 1 is realized, 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, in the process of rotating the rotating seat 1 from the open position to the intermediate position, the cam block 32 gradually pushes 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; on the other hand, the existence of the transmission inclined surface 4121 makes the cam block 32 move along a smoother trajectory during rotation, which helps to 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, prolonging the service life of the hinge. In summary, the application of the transmission inclined surface 4121 makes the conversion of the rotating seat 1 between the open, intermediate and closed positions more smooth, stable and reliable, users can feel a more smooth, stable and comfortable operation experience during use, thereby improving the overall satisfaction and convenience.

[0062] As shown in Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 14 and 16 , preferably, in the present embodiment, the first end of the swing arm 3 is hinged to the fixed 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 the present embodiment, the elastic body is a compression spring. In this way, on the one hand, the compression spring has stable elastic properties, can provide uniform rebound force when compressed by external force, and such properties enable the hinge to maintain a smooth motion trajectory during opening and closing, reducing the phenomenon of jamming or abnormal sound 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, which has high strength and durability. In the long-term use process, even if it is compressed and released frequently, the compression spring can maintain good elastic properties and shape stability, prolonging 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 can also be, but is not limited to, a rubber spring or a polyester spring or a glass steel spring or an air spring or a spring sheet, etc., which can be selected according to actual needs, and is not limited herein.

[0065] As shown in Figure 14 , Figure 15 and Figure 16 , preferably, in the present embodiment, two elastic members 41 are provided, and the first assembly groove and the cam block 32 are also correspondingly provided with two, two elastic members 41 are respectively located on both sides of the damper 42, and two elastic members 41 are respectively in transmission cooperation with two cam blocks 32. In this way, on the one hand, by arranging elastic members 41 on both sides of the damper 42 and in transmission cooperation with corresponding cam blocks 32, the stress condition during transmission can be effectively balanced, and the phenomenon of system instability caused by excessive unilateral stress can be reduced. This design improves the stability 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 members 41 enables the system to better withstand and disperse loads, improving the overall load capacity, which is particularly important for application scenarios that need to withstand large external forces or heavy loads, and can ensure normal operation of mechanical transmission and prolong service life.

[0066] As shown in Figure 14 and Figure 15 , preferably, in the present embodiment, the connecting head 412 of each elastic member 41 is provided with a clamping groove 4122, and the clamping grooves 4122 of the two connecting heads 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 cooperative action of the two clamping grooves 4122, effective clamping and fixing of the damper 42 is achieved. This design reduces errors caused by looseness or shaking, and helps to improve the degree of modularity.

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

[0068] Embodiment two

[0069] As shown in Figure 17 and Figure 18 The main difference between the present embodiment and embodiment one is that the number of elastic members 41 is different. In the present embodiment, only one elastic member 41 is provided to save costs.

[0070] Preferably, in the present embodiment, one side of the connecting head 412 is provided with a positioning block 4123, and the inner side wall of the first assembly groove 431 of the mounting shell 43 is provided with a positioning groove 4311, and the positioning block 4123 is inserted into the positioning groove 4311. In this way, on the one hand, the cooperation of the positioning block 4123 and the positioning groove 4311 provides accurate guidance for the installation of the connecting head 412, effectively avoiding misplacement and deviation during installation, ensuring that the connecting head 412 can be accurately and correctly installed to the predetermined position, and this design improves the installation precision and reliability, providing a strong guarantee for the stable operation of 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 connecting head 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 the installation difficulty and cost.

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

[0072] 1) It is relatively easy to install the linearly telescopic elastic member 41. The linearly telescopic elastic member 41 is used to replace the traditional torsional spring, simplifying the installation steps and reducing the assembly difficulty.

[0073] 2) Compared with the rotary torsional 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. Moreover, the linearly telescopic elastic member 41 is not prone to fatigue in long-term use, effectively prolonging the service life of the hinge.

[0074] 3) The elastic member 41 and the damper 42 are jointly installed to the mounting shell 43, realizing the modularization of the power part 4. This modular design simplifies the installation process, reduces the number of installation steps and required parts, and users or installers only need to install the power part 4 as a whole module to the fixed seat 2 to complete the installation work, greatly improving the installation efficiency and convenience.

[0075] 4) Modular design helps to ensure the accuracy of the relative position and matching relationship between the components of the power part 4, the elastic member 41 and the damper 42 can maintain stable installation state through the fixing effect of the installation shell 43, and the performance decline or failure caused by improper installation is avoided.

[0076] The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above-mentioned embodiments, and also include technical solutions composed of any combination of the above technical features. It should be pointed out that, for ordinary skilled persons in the technical field, under the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the utility model.

Claims

1. Hinge, characterized in that The utility model relates to a swing arm mechanism, including: Rotary base (1); Fixed base (2); Swing arm (3), one end of swing arm (3) is fixed to rotary base (1), and the other end is hinged to fixed base (2);Under the guidance of swing arm (3), rotary base (1) can be rotated in turn between opening position, intermediate position and closing position relative to fixed base (2); Power part (4), including elastic member (41), elastic member (41) is located in fixed base (2) and is transmissionally connected with swing arm (3), and elastic member (41) can be telescopic along the length direction of itself; Wherein, when rotary base (1) is in opening position, elastic member (41) is pressed and abuts against swing arm (3) to keep swing arm (3) in the current position;When rotary base (1) is in intermediate position, swing arm (3) is rotated to the position allowing elastic member (41) to expand, and elastic member (41) expands and pushes swing arm (3) to rotate, under the drive of swing arm (3), rotary base (1) is rotated to closing position.

2. Hinge according to claim 1, characterized in that Cam block (32) is arranged on swing arm (3);When rotary base (1) is in opening position, elastic member (41) abuts against cam block (32) and keeps swing arm (3) in the current position;When rotary base (1) is in intermediate position, cam block (32) is rotated to the position allowing elastic member (41) to expand, and elastic member (41) can expand and push cam block (32) to rotate, under the drive of cam block (32), swing arm (3) drives rotary base (1) to rotate to closing position.

3. Hinge according to claim 2, characterized in that Elastic member (41) includes elastic body (411) and connecting head (412), elastic body (411) is arranged in fixed base (2), connecting head (412) is connected to one end of elastic body (411), and connecting head (412) is provided with transmission inclined surface (4121); When rotary base (1) is in opening position, transmission inclined surface (4121) abuts against cam block (32) and keeps swing arm (3) in the current position;When rotary base (1) is in intermediate position, elastic body (411) can expand to drive connecting head (412) to push cam block (32) to rotate, transmission inclined surface (4121) and the outer contour of cam block (32) are slidingly fitted, under the drive of cam block (32), swing arm (3) drives rotary base (1) to rotate to closing position.

4. Hinge according to any of claims 1-3, characterized in that The power part (4) further includes damper (42), and the damper (42) is arranged on the fixed base (2);When rotary base (1) moves from intermediate position to closing position, swing arm (3) pushes damper (42), and damper (42) is pressed to improve buffering.

5. Hinge according to claim 4, characterized in that The power part (4) further includes mounting shell (43), and the mounting shell (43) is arranged on the fixed base (2), and the elastic member (41) and the damper (42) are arranged in the mounting shell (43).

6. 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. 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 of claim 5, wherein The fixed seat (2) is provided with an assembly cavity (21), and a buckle structure is arranged 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.

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

10. A door and window system characterized by A hinge comprising any one of claims 1-9.

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