Hinge mechanism

Abstract

The utility model discloses a hinge mechanism. The hinge mechanism comprises a hinge cup; the hinge seat is provided with a limiting piece; the two ends of the transmission rod and the two ends of the driven rod are hinged to the hinge cup and the hinge base respectively. Under the guidance of the transmission rod and the driven rod, the hinge cup can move among an opening position, a middle position and a closing position relative to the hinge seat; the power part comprises a pushing part and an elastic part, the pushing part is slidably arranged on the hinge seat, one end of the elastic part is connected to the pushing part, the other end of the elastic part abuts against the limiting part, and the elastic part can stretch out and draw back in the first direction to drive the pushing part to slide in the first direction; when the hinge cup is located in the middle position, sliding limitation of the pushing piece is relieved, the elastic piece can drive the pushing piece to slide, the transmission rod is in transmission connection with the pushing piece, and the transmission rod and the driven rod can swing to drive the hinge cup to move to the closed position under driving of the pushing piece. In this way, the elastic piece which stretches out and draws back linearly is used for replacing a torsional spring, assembling efficiency is improved, and the service life of the hinge mechanism is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of door and window hardware accessories, and in particular to hinge mechanisms. Background Technology

[0002] A European hinge is a type of hardware connector that allows two objects to rotate relative to each other. Existing European hinges typically include a hinge cup, a hinge seat, a torsion spring, and two connecting rods. Both ends of the two connecting rods are hinged to the hinge cup and the hinge seat, respectively. Together, these four components form a four-bar linkage. Guided by the two connecting rods, the hinge cup can move relative to the hinge seat between an open position, a neutral position, and a closed position. When the hinge cup is in the open position, the door or window sash is opened accordingly; when the hinge cup is in the closed position, the door or window sash is closed accordingly. The torsion spring is located between the two connecting rods. When the hinge cup is in the open position, it applies pressure to the two connecting rods to stabilize their positions. It also applies a restoring force to the two connecting rods when the hinge cup moves from the neutral position to the closed position, causing the hinge cup to automatically return to the closed position.

[0003] For example, Chinese Patent Publication No. CN113802943B discloses a buffer hinge, which includes a hinge cup, a base, a hinge arm, and a damper. It also includes: a connector, which is a four-hole connector, comprising a cover-plate-shaped body and a pair of hinge holes respectively disposed at the front and rear ends of the body; the pair of hinge holes at the rear end of the four-hole connector are hingedly connected to a pair of connecting holes on the hinge cup; one end of the connector is movably connected to the damper; the connector is rolledly connected to the hinge arm via knurled rivets; a connecting rod assembly, the other end of the connector being hingedly connected to one end of the connecting rod assembly, and the other end of the connecting rod assembly being hingedly connected to the hinge cup; the connecting rod assembly is also hinged to the hinge arm. The connector is provided with an arc groove, and the groove surface of the arc groove is provided with a knurled area. The knurled rivet is rotatably connected to the knurled area by the knurled area. A torsion spring is installed between the four-hole connector and the connecting rod assembly. One end of the torsion spring is hinged to a pair of hinge holes at the front end of the four-hole connector and a shaft hole at the front end of the hinge arm by a stepped rivet. The other end is arranged between the inner side of the four-hole connector and the outer side of the connecting rod assembly, so as to enable the hinge cup and the connecting rod assembly to have a closing force. However, it is relatively complicated and difficult to assemble the torsion spring, the four-hole connector and the connecting rod of the connecting rod assembly into place in this hinge, so that the overall hinge is not simple and convenient to assemble. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a hinge mechanism that uses a linearly telescopic elastic element instead of a traditional torsion spring, which not only simplifies the assembly process but also improves the service life of the hinge mechanism.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A hinge mechanism includes: a hinge cup; a hinge seat with a limiting member; a drive rod and a driven rod, both ends of which are respectively hinged to the hinge cup and the hinge seat; guided by the drive rod and the driven rod, the hinge cup can move relative to the hinge seat between an open position, a middle position, and a closed position; a power component including a pusher and an elastic member, the pusher slidingly disposed on the hinge seat, one end of the elastic member connected to the pusher and the other end abutting against the limiting member, the elastic member being extendable and retractable along a first direction to drive the hinge cup. The pusher slides along a first direction; when the hinge cup is in the open position, the transmission rod abuts against the pusher to restrict the sliding of the pusher, and under the action of the elastic member, the pusher pushes against the transmission rod to keep the transmission rod in its current position; when the hinge cup is in the middle position, the sliding restriction of the pusher is released, the elastic member can drive the pusher to slide, the transmission rod is connected to the pusher, and under the drive of the pusher, the transmission rod and the driven rod can swing to drive the hinge cup to move to the closed position.

[0007] According to some embodiments of the present invention, the power component further includes a damper, the first end of which is connected to the pusher, and the transmission rod, the driven rod, or the hinge seat is provided with a stop member; when the hinge cup moves from the middle position to the closed position, the second end of the damper abuts against the stop member, and under the drive of the pusher, the first end of the damper moves toward the second end of the damper, and the damper is compressed to provide cushioning.

[0008] According to some embodiments of the present invention, the pushing member is provided with a first mounting groove, the elastic member is disposed in the first mounting groove, and one end of the elastic member is connected to the groove wall of the first mounting groove.

[0009] According to some embodiments of the present invention, the pusher is provided with a second mounting groove, the damper is disposed in the second mounting groove, and the first end of the damper is connected to the groove wall of the second mounting groove.

[0010] According to some embodiments of this utility model, the transmission rod is hinged to the hinge seat via a first hinge shaft, and the driven rod is hinged to the hinge seat via a second hinge shaft. In the extension direction of the elastic member, the first hinge shaft is located behind the second hinge shaft. The pushing member is provided with a transmission groove, and the transmission rod has a transmission arm. When the hinge cup is in the open position, the transmission arm abuts against the transmission groove to restrict the sliding of the pushing member. Under the action of the elastic member, the transmission groove pushes against the transmission arm to keep the transmission rod in its current position. When the hinge cup is in the middle position, the transmission arm rotates to a position that releases the sliding restriction on the pushing member. The elastic member can drive the pushing member to slide. The transmission arm is connected to the transmission groove. Under the drive of the transmission groove, the transmission rod and the driven rod can swing to drive the hinge cup to move to the closed position.

[0011] According to some embodiments of this utility model, the transmission rod is hinged to the hinge seat via a first hinge shaft, and the driven rod is hinged to the hinge seat via a second hinge shaft. In the extension direction of the elastic member, the first hinge shaft is located in front of the second hinge shaft. The pushing member is provided with a transmission protrusion, and the transmission rod has a transmission arm. When the hinge cup is in the open position, the transmission arm abuts against the transmission protrusion to restrict the sliding of the pushing member, and under the action of the elastic member, the transmission protrusion pushes against the transmission arm to keep the transmission rod in the current position. When the hinge cup is in the middle position, the transmission arm rotates to a position that releases the sliding restriction on the pushing member, and the elastic member can drive the pushing member to slide. The transmission arm is connected to the transmission protrusion, and under the drive of the transmission protrusion, the transmission rod and the driven rod can swing to drive the hinge cup to move to the closed position.

[0012] According to some embodiments of the present invention, the hinge mechanism further includes an adjustment structure, which is movably connected to the damper, and the adjustment structure is used to adjust the damping effect of the damper.

[0013] According to some embodiments of this utility model, the abutment is slidably disposed on the transmission rod or the driven rod, the abutment is movable between a first position and a second position, the adjustment structure includes a first step and a second step, the first step and the second step are disposed on the abutment; when the hinge cup is in the open position, the distance between the first step and the damper in the first direction is greater than the distance between the second step and the damper in the first direction; when the abutment is in the first position and the hinge cup moves from the middle position to the closed position, the second end of the damper abuts against the first step; when the abutment is in the second position and the hinge cup moves from the middle position to the closed position, the second end of the damper abuts against the second step.

[0014] According to some embodiments of the present invention, the transmission rod is hinged to the hinge seat via a first hinge shaft, and the driven rod is hinged to the hinge seat via a second hinge shaft; the abutment is sleeved on the first hinge shaft or the second hinge shaft.

[0015] According to some embodiments of the present invention, the limiting member is a pin, which is inserted into the hinge seat; or, the limiting member is a limiting protrusion, which is integrally formed into the hinge seat.

[0016] According to some embodiments of this utility model, the elastic element is a compression spring.

[0017] In summary, the hinge mechanism provided by this utility model has at least the following technical effects:

[0018] By using a linearly telescopic elastic element to replace the torsion spring, the assembly between the elastic element, the pusher element, the transmission rod, and the driven rod is simpler, improving assembly efficiency. Furthermore, the elastic element provides linear elastic force, which has a longer service life compared to the torsion spring that provides rotational elastic force, thereby extending the overall service life of the hinge mechanism. Attached Figure Description

[0019] Figure 1 This is a top view of the hinge mechanism (with the hinge cup in the open position) according to Embodiment 1 of this utility model.

[0020] Figure 2 This is a top view of the hinge mechanism (with the hinge cup in the open position and the hinge seat not shown) according to Embodiment 1 of this utility model.

[0021] Figure 3 This is a front view structural schematic diagram of the hinge mechanism (hinge cup in the open position and hinge seat not shown) according to Embodiment 1 of this utility model;

[0022] Figure 4 This is a side view of the hinge mechanism (with the hinge cup in the open position) according to Embodiment 1 of this utility model.

[0023] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the AA direction;

[0024] Figure 6 This is a top view of the hinge mechanism (with the hinge cup in the middle position) according to Embodiment 1 of this utility model.

[0025] Figure 7 This is a top view of the hinge mechanism (with the hinge cup in the middle position and the hinge seat not shown) according to Embodiment 1 of this utility model.

[0026] Figure 8This is a side view of the hinge mechanism (with the hinge cup in the middle position) according to Embodiment 1 of this utility model.

[0027] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0028] Figure 10 This is a top view of the hinge mechanism (with the hinge cup in the closed position) according to Embodiment 1 of this utility model.

[0029] Figure 11 This is a top view of the hinge mechanism (with the hinge cup in the closed position and the hinge seat not shown) according to Embodiment 1 of this utility model.

[0030] Figure 12 This is a side view of the hinge mechanism (with the hinge cup in the closed position) according to Embodiment 1 of this utility model.

[0031] Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure in the CC direction;

[0032] Figure 14 This is an exploded structural diagram of the hinge mechanism according to Embodiment 1 of this utility model;

[0033] Figure 15 This is a schematic diagram of the power component according to Embodiment 1 of this utility model;

[0034] Figure 16 This is an exploded structural diagram of the power component of Embodiment 1 of the present invention from one perspective.

[0035] Figure 17 This is an exploded structural diagram of the power component of Embodiment 1 of this utility model from another perspective;

[0036] Figure 18 This is a top view of the hinge mechanism (with the hinge cup in the open position) according to Embodiment 2 of this utility model.

[0037] Figure 19 This is a three-dimensional structural schematic diagram of the hinge mechanism (with the hinge cup in the open position and the hinge seat not shown) according to Embodiment 2 of this utility model.

[0038] Figure 20 This is a side view of the hinge mechanism (with the hinge cup in the open position) according to Embodiment 2 of this utility model.

[0039] Figure 21 for Figure 20 Schematic diagram of the cross-sectional structure in the DD direction;

[0040] Figure 22This is a top view of the hinge mechanism (with the hinge cup in the middle position) according to Embodiment 2 of this utility model.

[0041] Figure 23 This is a side view of the hinge mechanism (with the hinge cup in the middle position) according to Embodiment 2 of this utility model.

[0042] Figure 24 for Figure 23 Schematic diagram of the cross-sectional structure in the EE direction;

[0043] Figure 25 This is a top view of the hinge mechanism (with the hinge cup in the closed position) according to Embodiment 2 of this utility model.

[0044] Figure 26 This is a side view of the hinge mechanism (with the hinge cup in the closed position) according to Embodiment 2 of this utility model.

[0045] Figure 27 for Figure 26 Schematic diagram of the cross-sectional structure in the FF direction;

[0046] Figure 28 This is a three-dimensional structural diagram of the power component of Embodiment 2 of the present invention from one perspective;

[0047] Figure 29 This is a three-dimensional structural schematic diagram of the power component of Embodiment 2 of this utility model from another perspective;

[0048] Figure 30 This is a three-dimensional structural diagram of the hinge seat according to Embodiment 3 of this utility model.

[0049] The meanings of the reference numerals in the attached figures are as follows:

[0050] 1. Hinge cup; 2. Hinge seat; 21. Limiting component; 3. Transmission rod; 31. First hinge shaft; 32. Transmission arm; 4. Driven rod; 41. Second hinge shaft; 5. Power component; 51. Pushing component; 511. First mounting groove; 512. Second mounting groove; 513. Transmission groove; 514. Transmission protrusion; 5141. Guide slope; 52. Elastic component; 521. Connecting block; 5211. Connecting groove; 53. Damper; 6. Abutment component; 61. First step; 62. Second step. Detailed Implementation

[0051] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0052] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0053] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0054] The present invention will now be described in further detail with reference to the accompanying drawings.

[0055] Example 1

[0056] Please see Figures 1 to 17 This embodiment discloses a hinge mechanism, including a hinge cup 1, a hinge seat 2, a transmission rod 3, a driven rod 4, and a power component 5; the hinge seat 2 is provided with a fixed limiting member 21; one end of the transmission rod 3 is hinged to the hinge cup 1, and the other end is hinged to the hinge seat 2; one end of the driven rod 4 is hinged to the hinge cup 1, and the other end is hinged to the hinge seat 2; under the guidance of the transmission rod 3 and the driven rod 4, the hinge cup 1 can move sequentially between an open position, a middle position, and a closed position relative to the hinge seat 2; the power component 5 includes a pushing member 51 and an elastic member 52, the pushing member 51 is slidably disposed on the hinge seat 2, one end of the elastic member 52 is connected to the pushing member 51, and the other end abuts against the limiting member 21, the elastic member 52 can extend and retract along a first direction to drive the pushing member 51 to slide along the first direction; Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, when the hinge cup 1 is in the open position, the transmission rod 3 abuts against the pusher 51 to restrict the sliding of the pusher 51, and under the action of the elastic member 52, the pusher 51 pushes against the transmission rod 3 to hold the transmission rod 3 in the current position; as Figure 6 , Figure 7 and Figure 9 As shown, when the hinge cup 1 is in the middle position, the transmission rod 3 rotates to the position that releases the sliding restriction on the pusher 51. The elastic element 52 can drive the pusher 51 to slide. The transmission rod 3 is connected to the pusher 51. Under the drive of the pusher 51, the transmission rod 3 and the driven rod 4 can swing to drive the hinge cup 1 to the closed position. For details on the state of the hinge cup 1 in the closed position, please refer to [reference needed]. Figure 10 , Figure 11 and Figure 13 .

[0057] Specifically, the first direction can be referenced. Figure 2 and Figure 3 In the e1 direction.

[0058] Specifically, the hinge cup 1 is used to be fixedly connected to the door and window sash, the hinge seat 2 is used to be fixedly connected to the door and window frame, and the connecting rod that can form a transmission connection with the pusher 51 is defined as the transmission rod 3.

[0059] It is understandable that when the hinge cup 1 is in the open position, the user needs to apply external force to overcome the force of the elastic element 52 and rotate the hinge cup 1 to the middle position. The hinge cup 1 in the middle position can automatically return to the closed position under the force of the elastic element 52.

[0060] The hinge mechanism provided in this embodiment comprises a hinge cup 1, a hinge seat 2, a transmission rod 3, and a driven rod 4, forming a four-bar linkage. When the hinge cup 1 is in the open position, the transmission rod 3 abuts against the pushing member 51, restricting the sliding of the pushing member 51. Under the elastic force of the elastic member 52, the pushing member 51 pushes against the transmission rod 3, keeping the transmission rod 3 and the hinge cup 1 stable in the current position. When the hinge cup 1 moves from the middle position to the closed position, the restriction between the transmission rod 3 and the pushing member 51 is released, the elastic member 52 releases energy, and drives the pushing member 51 to slide along the first direction. At this point, the transmission rod 3 and the pusher 51 form a transmission connection. The pusher 51 drives the transmission rod 3 and the driven rod 4 to swing, thereby driving the hinge cup 1 and the connected door and window sash to move smoothly to the closed position. In this way, the linearly telescopic elastic element 52 is used to replace the torsion spring. The assembly between the elastic element 52, the pusher 51, the transmission rod 3 and the driven rod 4 is simpler and the assembly efficiency is improved. In addition, the elastic element 52 provides linear elastic force. Compared with the torsion spring that provides rotational elastic force, the elastic element 52 has a longer service life, thereby extending the overall service life of the hinge mechanism.

[0061] like Figure 2 , Figure 7 , Figure 13 , Figure 14 , Figure 15 , Figure 16 and Figure 17 As shown, further, in this embodiment, the power component 5 also includes a damper 53. The first end of the damper 53 is connected to the pusher 51, and the driven rod 4 is provided with a stop member 6. When the hinge cup 1 moves from the middle position to the closed position, the second end of the damper 53 abuts against the stop member 6. Under the drive of the pusher 51, the first end of the damper 53 moves toward the second end of the damper 53, and the damper 53 is compressed to provide cushioning. Thus, by mounting the elastic member 52 and the damper 53 together on the pusher 51, this embodiment achieves a modular design of the power component 5. Importantly:

[0062] First, the modular power component 5 can be installed as a whole onto the hinge base 2. During installation, the elastic element 52 and the damper 53 can be installed onto the pusher 51 first, and then the entire power component 5 can be installed onto the hinge base 2. It is only necessary to make one end of the elastic element 52 abut against the limiting element 21. This feature makes the overall assembly process of the hinge mechanism simpler and more stable, improves the stability and reliability of the hinge mechanism, not only helps to improve production efficiency and service life, but also brings convenience to later maintenance and replacement.

[0063] Secondly, the modular design greatly simplifies the assembly process of the power component 5. The traditional assembly method requires the separate installation of the torsion spring and the damper 53, which is not only cumbersome but also increases the risk of errors. The modular design allows the power component 5 to be installed as a whole, which greatly reduces the assembly steps and time, reduces the assembly difficulty, and improves production efficiency.

[0064] Furthermore, the modular design makes the structure of the power component 5 more compact and reasonable. By integrating the elastic element 52, damper 53 and pusher 51 into a module, the gaps and connection points between components are reduced, thereby improving the overall compactness and structural rationality. This not only optimizes space utilization but also enhances the synergy between components and improves the efficiency of power transmission.

[0065] Furthermore, during the movement of the hinge cup 1 from the middle position to the closed position, the second end of the damper 53 abuts against the abutment member 6. As the pusher member 51 drives the damper 53, the first end of the damper 53 moves toward the second end. The damper 53 is compressed, thus providing an effective buffering effect. This design can significantly reduce the impact and noise of the hinge cup 1 during the closing process, improving the user experience. At the same time, the buffering effect can also protect the power component 5 and the hinge cup 1 from damage and extend their service life. Moreover, the combined action of the elastic member 52 and the damper 53 enables the power component 5 to provide sufficient driving force while also achieving precise control of the movement speed of the hinge cup 1, avoiding excessively fast or forceful closing actions, thereby ensuring that the hinge cup 1 can reach the closed position smoothly and accurately.

[0066] It should be noted that in some other embodiments, the abutment 6 can also be set on the transmission rod 3 or the hinge seat 2, depending on the actual needs, and is not limited to one specific embodiment.

[0067] like Figure 2 and Figure 7As shown, specifically, in this embodiment, the transmission rod 3 is hinged to the hinge seat 2 via the first hinge shaft 31, and the driven rod 4 is hinged to the hinge seat 2 via the second hinge shaft 41. Preferably, in this embodiment, in the extension direction of the elastic member 52, the first hinge shaft 31 is located behind the second hinge shaft 41. The pushing member 51 is provided with a transmission groove 513, and the transmission rod 3 has a transmission arm 32. The transmission arm 32 and the transmission rod 3 move synchronously. When the hinge cup 1 is in the open position, the transmission arm 32 abuts against the transmission rod 3. The moving groove 513 restricts the sliding of the pusher 51, and under the action of the elastic member 52, the transmission groove 513 pushes against the transmission arm 32 to keep the transmission rod 3 in the current position; when the hinge cup 1 is in the middle position, the transmission arm 32 rotates to the position to release the sliding restriction on the pusher 51, and the elastic member 52 can drive the pusher 51 to slide. The transmission arm 32 is connected to the transmission groove 513. Under the drive of the transmission groove 513, the transmission rod 3 and the driven rod 4 can swing to drive the hinge cup 1 to move to the closed position. Thus, when the hinge cup 1 is in the open position, the transmission arm 32 can stably abut against the transmission groove 513 to restrict the sliding of the pusher 51. At the same time, under the action of the elastic member 52, the transmission groove 513 can push against the transmission arm 32, thereby ensuring that the hinge cup 1, transmission rod 3 and driven rod 4 maintain their current positions when not subjected to external forces. When the hinge cup 1 is in the middle position, the transmission arm 32 releases the restriction on the pusher 51, and the elastic member 52 can drive the pusher 51 to slide. At this time, the transmission arm 32 is connected to the transmission groove 513. Through the driving action of the transmission groove 513, the transmission rod 3 and driven rod 4 can swing precisely, thereby driving the hinge cup 1 to move to the closed position. This design ensures the efficiency and accuracy of the transmission.

[0068] like Figure 15 and Figure 16As shown, preferably, in this embodiment, the pusher 51 is provided with a first mounting groove 511, the elastic member 52 is disposed in the first mounting groove 511, and one end of the elastic member 52 is connected to the groove wall of the first mounting groove 511. Thus, on the one hand, the elastic element 52 is cleverly placed in the first mounting groove 511 provided on the pusher 51. This design not only makes the overall structure more compact and effectively utilizes the limited space, but also avoids possible interference and damage to the elastic element 52 in the external environment. At the same time, the compact structure helps to reduce the overall size of the product, improve space utilization, and meet the needs of modern product design for miniaturization and lightweighting. On the other hand, connecting one end of the elastic element 52 to the groove wall of the first mounting groove 511 not only simplifies the assembly process and improves production efficiency, but also makes the elastic element 52 more stable and less likely to fall off or loosen, thereby ensuring the stability and reliability of the product. Furthermore, the design of the first mounting groove 511 makes the replacement and maintenance of the elastic element 52 more convenient. When the elastic element 52 wears or fails due to long-term use, it can be simply disassembled and replaced with a new elastic element 52 without replacing the entire pusher 51. In addition, this design also provides convenience for product upgrades and modifications. By replacing the elastic element 52 with different performance or size, the performance of the product can be adjusted and optimized.

[0069] like Figure 15 and Figure 17As shown, preferably, in this embodiment, the pusher 51 is provided with a second mounting groove 512, and the damper 53 is disposed in the second mounting groove 512, with the first end of the damper 53 connected to the groove wall of the second mounting groove 512. Thus, on the one hand, by providing a second mounting groove 512 on the pusher 51 and cleverly placing the damper 53 within it, a high degree of structural integration is achieved. This design not only effectively utilizes the space on the pusher 51 and avoids potential interference and damage to the damper 53 in the external environment, but also makes the overall structure more compact and aesthetically pleasing. Simultaneously, the integrated design helps reduce the number of parts, lowers assembly complexity, and improves production efficiency. On the other hand, the first end of the damper 53 being connected to the groove wall of the second mounting groove 512 ensures the stability of the damper 53 on the pusher 51, making it less likely to detach or loosen, thereby greatly improving the stability and reliability of the product. Furthermore, the design of the second mounting groove 512 makes the damper... The maintenance and replacement of damper 53 are made more convenient. When damper 53 wears or fails due to long-term use, it can be simply disassembled and replaced with a new damper 53 without disassembling or replacing the entire pusher 51. This design not only reduces maintenance costs but also improves the maintainability and service life of the product. Furthermore, due to the more compact structure, less material is required, which helps to further reduce production costs. In addition, the integrated design also provides potential for product upgrades and modifications. With the continuous advancement of technology and the continuous expansion of application scenarios, users may need to adjust and optimize the performance of the product according to actual needs. The design of the second mounting slot 512 in this embodiment allows users to easily replace dampers 53 with different performance or size, thereby achieving flexible adjustment of product performance.

[0070] With this configuration, the first mounting slot 511 and the second mounting slot 512 are used to install the elastic element 52 and the damper 53, respectively. The compact structure helps to reduce the total space required for the power component 5, making the overall design simpler and more efficient, which is conducive to improving the degree of modularity. Furthermore, the elastic element 52, the damper 53, and the pusher 51 can be quickly assembled into a complete module, making the assembly process of the power component 5 simpler and faster. In addition, the first mounting slot 511 and the second mounting slot 512 provide independent installation space for the elastic element 52 and the damper 53, reducing mutual interference between them, helping to maintain the stability and consistency of the power component 5 during operation, and improving the overall performance.

[0071] It should be noted that in some other embodiments, a first buckle and a second buckle may be provided on the pusher 51, not limited to the first buckle being used to connect the elastic member 52 and the second buckle being used to connect the damper 53. Alternatively, a first threaded hole or a second threaded hole may be provided on the pusher 51, not limited to the first threaded hole being used to thread one end of the elastic member 52 and the second threaded hole being used to thread one end of the damper 53.

[0072] Preferably, in this embodiment, the hinge mechanism further includes an adjustment structure, which is movably connected to the damper 53. The adjustment structure is used to adjust the damping effect of the damper 53 to meet the needs of different users or different application scenarios.

[0073] like Figure 3 and Figure 14As shown, more preferably, in this embodiment, the abutment 6 is slidably mounted on the driven rod 4, and the abutment 6 can move between a first position and a second position. The adjustment structure includes a first step 61 and a second step 62, which are fixedly mounted on the abutment 6. After the position adjustment is completed, the abutment 6 is relatively fixed to the driven rod 4 to move synchronously with the driven rod 4. When the hinge cup 1 is in the open position, the distance between the first step 61 and the damper 53 in the first direction is greater than the distance between the second step 62 and the damper 53 in the first direction. When the abutment 6 is in the first position and the hinge cup 1 is in the middle... When the damper 53 moves to the closed position, the second end of the damper 53 abuts against the first step 61; when the abutment 6 is in the second position and the hinge cup 1 moves from the middle position to the closed position, the second end of the damper 53 abuts against the second step 62; specifically, in this embodiment, when the abutment 6 is in the first position, the damper 53 provides partial damping effect during the movement of the hinge cup 1 from the middle position to the closed position; when the abutment 6 is in the second position, the damper 53 provides full damping effect during the movement of the hinge cup 1 from the middle position to the closed position. Thus, on the one hand, by introducing the abutment 6 and allowing it to move between the first and second positions, the user can adjust the contact point (i.e., the first step 61 and the second step 62) between the damper 53 and the abutment 6 according to actual needs, thereby adjusting the damping effect. This design increases the product's flexibility and applicability, enabling the same hinge mechanism to meet the needs of different users or different application scenarios. Specifically, moving the abutment 6 to the first position reduces the stroke of the damper 53, while moving the abutment 6 to the second position increases the stroke of the damper 53. The user can easily adjust the damping effect by simply sliding the abutment 6 to change its relative position with the damper 53. This design avoids complex installation steps and additional tool requirements, making the installation and adjustment process simpler and faster. On the other hand, the abutment 6 and the adjustment structure (i.e., the first step 61 and the second step 62) are located outside the hinge seat 2, saving space on the hinge seat 2 and thus reserving more installation space for the modular installation of the power component 5.

[0074] It should be noted that in some other embodiments, the adjustment structure may be an adjustment oil valve provided in the damper 53, or it may be an adjustment rod provided in the hinge seat 2, whichever is more appropriate to the actual needs.

[0075] like Figure 3 and Figure 14As shown, preferably, in this embodiment, the abutment 6 is sleeved on the second hinge shaft 41, and the abutment 6 can slide along the axial direction of the second hinge shaft 41. Thus, on the one hand, by sleeved the abutment 6 on the second hinge shaft 41, not only is the overall compactness of the hinge mechanism maintained, but the stability of the structure is also effectively enhanced. This design reduces the need for additional connecting parts, lowers assembly complexity, and ensures the stability and accuracy of the abutment 6 during movement. On the other hand, the abutment 6 sleeved on the second hinge shaft 41 can be more easily slidably adjusted within a predetermined range. Users or installers can easily adjust the position by simply pushing or pulling the abutment 6. Furthermore, due to the tight fit between the abutment 6 and the hinge shaft, the positioning is more accurate, reducing the risk of functional failure or performance degradation caused by positional deviation.

[0076] It should be noted that in some other embodiments, when the hinge cup 1 moves from the middle position to the closed position, the second end of the damper 53 may also abut against the transmission rod 3 instead of the driven rod 4. Preferably, in some other embodiments, the abutment 6 is slidably mounted on the transmission rod 3. After the position adjustment is completed, the abutment 6 is fixed in relative position with the transmission rod 3 to move synchronously with the transmission rod 3. More preferably, in some other embodiments, the abutment 6 is sleeved on the first hinge shaft 31, and the abutment 6 can slide along the axial direction of the first hinge shaft 31.

[0077] like Figure 16 As shown, preferably, in this embodiment, one end of the elastic member 52 is provided with a connecting block 521, which abuts against the limiting member 21; more preferably, the connecting block 521 is provided with a connecting groove 5211, through which the connecting block 521 abuts against the limiting member 21. Thus, the design of the connecting block 521 provides a stable connection point between the elastic member 52 and the limiting member 21. The tight abutment between the connecting groove 5211 and the limiting member 21 ensures that the elastic member 52 maintains a stable position under force, preventing displacement or detachment, thereby enhancing the connection stability and reliability of the entire hinge mechanism.

[0078] Preferably, in this embodiment, the elastic element 52 is a compression spring. This has several advantages: First, the compression spring has stable elasticity characteristics, providing a uniform rebound force when compressed by external forces. This characteristic allows the hinge mechanism 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 according to specific needs to adapt to different hinge mechanisms 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 service life of the hinge mechanism. Fourth, the production cost of the compression spring is relatively low, and it is easy to procure and process, making the hinge mechanism using a compression spring as the elastic element 52 more price-competitive and helping to reduce overall costs.

[0079] like Figure 13 and Figure 14 As shown, preferably, in this embodiment, the limiting member 21 is a pin, which is inserted into the hinge seat 2. Thus, on the one hand, the pin, as a commonly used fastener, has precise dimensions and shape, ensuring stable insertion in the hinge seat 2. This design not only achieves precise positioning between hinge components but also effectively prevents relative movement or misalignment between components, thereby ensuring the stability and reliability of the hinge mechanism. On the other hand, the installation process of the pin is relatively simple; typically, it only requires inserting it into a predetermined hole and fixing it. This design makes the assembly and disassembly of the hinge mechanism easier, reducing installation and maintenance costs. While reducing the difficulty of operation, the pin is also relatively easy to disassemble, facilitating the maintenance or replacement of parts in the hinge mechanism. Furthermore, the pin is inserted into the hinge seat 2, forming a tight fit, thereby enhancing the overall structural strength of the hinge mechanism. This design allows the hinge mechanism to withstand greater loads and impacts, improving its durability and service life. Moreover, compared to other complex limiting component designs 21, using a pin as the limiting component 21 not only simplifies the structure but also reduces production costs. This design allows the hinge mechanism to maintain high performance while offering higher cost-effectiveness, helping to enhance the product's market competitiveness.

[0080] Preferably, in this embodiment, the pusher 51 is made of plastic. Of course, in some other embodiments, the pusher 51 may also be made of metal, but is not limited to it; the choice can be made according to actual needs, and no single limitation is made here.

[0081] It should be noted that in some other embodiments, the elastic element 52 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. There is no single limitation here.

[0082] It should be noted that in some other embodiments, the limiting member 21 may also be, but is not limited to, a rubber pad or a metal sheet, etc., and can be selected according to actual needs. It is not a unique limitation here.

[0083] Example 2

[0084] Please see Figures 18 to 29 The main difference between this embodiment and Embodiment 1 is that, in the extension direction of the elastic member 52, the first hinge shaft 31 is located in front of the second hinge shaft 41, the pushing member 51 is provided with a transmission protrusion 514, the transmission rod 3 has a transmission arm 32, the transmission protrusion 514 and the pushing member 51 move synchronously, and the transmission arm 32 and the transmission rod 3 move synchronously; as Figure 18 , Figure 19 and Figure 21 As shown, when the hinge cup 1 is in the open position, the transmission arm 32 abuts against the transmission protrusion 514 to restrict the sliding of the pusher 51, and under the action of the elastic member 52, the transmission protrusion 514 pushes against the transmission arm 32 to hold the transmission rod 3 in the current position; as Figure 22 and Figure 24 As shown, when the hinge cup 1 is in the middle position, the transmission arm 32 rotates to a position that releases the sliding restriction on the pusher 51. The elastic element 52 can drive the pusher 51 to slide. The transmission arm 32 is connected to the transmission protrusion 514. Under the drive of the transmission protrusion 514, the transmission rod 3 and the driven rod 4 can swing to drive the hinge cup 1 to move to the closed position. The specific state of the hinge cup 1 moving to the closed position can be found in the following reference. Figure 25 and Figure 26 .

[0085] like Figure 21 and Figure 28 As shown, preferably, in this embodiment, the transmission protrusion 514 is provided with a guide slope 5141; when the hinge cup 1 is in the open position, the transmission arm 32 abuts against the guide slope 5141 to restrict the sliding of the push member 51, and under the action of the elastic member 52, the guide slope 5141 pushes against the transmission arm 32 to keep the transmission rod 3 in the current position; when the hinge cup 1 is in the middle position, the transmission arm 32 releases the sliding restriction on the push member 51, the elastic member 52 can drive the push member 51 to slide, the transmission arm 32 is connected to the guide slope 5141 in a transmission manner, the movement of the transmission protrusion 514 can cause the guide slope 5141 to move relative to the transmission arm 32, under the drive of the guide slope 5141 of the transmission protrusion 514, the transmission arm 32 moves along the guide slope 5141 and then drives the transmission rod 3 to rotate, thereby causing the transmission rod 3 and the driven rod 4 to swing to drive the hinge cup 1 to move to the closed position.

[0086] like Figure 19 As shown, preferably, in this embodiment, when the hinge cup 1 moves from the middle position to the closed position, the second end of the damper 53 abuts against the first hinge shaft 31 of the transmission rod 3.

[0087] Example 3

[0088] like Figure 30 As shown, the main difference between this embodiment and embodiments two and three is that the limiting member 21 is an integrally formed limiting protrusion on the hinge seat 2. This design, on the one hand, avoids the assembly gap between the limiting member 21 and the hinge seat 2, thus significantly improving the compactness and stability of the overall structure. This design reduces the risk of loosening due to improper assembly or long-term use, ensuring the reliable realization of the limiting function. On the other hand, since the limiting protrusion and the hinge seat 2 are directly integrally formed, no additional assembly steps are required, which greatly simplifies the assembly process in production. It also reduces the manpower, material resources, and time costs required for assembly, improving production efficiency. Furthermore, the integrally formed design makes the connection between the limiting protrusion and the hinge seat 2 more robust, capable of withstanding greater forces. This design not only improves the product's durability but also extends its service life and reduces maintenance costs.

[0089] In summary, the hinge mechanism disclosed in this utility model can bring at least the following beneficial technical effects:

[0090] 1) The linearly telescopic elastic element 52 is used to replace the torsion spring. The assembly between the elastic element 52, the pusher 51, the transmission rod 3 and the driven rod 4 is simpler and the assembly efficiency is improved.

[0091] 2) The elastic element 52 provides linear elastic force, and compared with the torsion spring that provides rotational elastic force, the elastic element 52 has a longer service life, thereby extending the overall service life of the hinge mechanism.

[0092] 3) By mounting the elastic element 52 and the damper 53 together on the pusher 51, the modular design of the power component 5 is realized. The modular design makes the structure of the power component 5 more compact and reasonable, and simplifies the assembly process of the power component 5.

[0093] 4) The modular power component 5 can be installed as a whole onto the hinge seat 2. This feature makes the overall assembly process of the hinge mechanism simpler and more stable, improving the stability and reliability of the hinge mechanism. This not only helps to improve production efficiency and service life, but also brings convenience to later maintenance and replacement.

[0094] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A hinge mechanism, characterized in that, include: Hinge cup (1); The hinge seat (2) is provided with a limiting member (21); The transmission rod (3) and the driven rod (4) are respectively hinged to the hinge cup (1) and the hinge seat (2) at both ends; under the guidance of the transmission rod (3) and the driven rod (4), the hinge cup (1) can move relative to the hinge seat (2) between the open position, the intermediate position and the closed position; The power component (5) includes a pusher (51) and an elastic member (52). The pusher (51) is slidably disposed on the hinge seat (2). One end of the elastic member (52) is connected to the pusher (51), and the other end abuts against the limiting member (21). The elastic member (52) can extend and retract along a first direction to drive the pusher (51) to slide along the first direction. When the hinge cup (1) is in the open position, the transmission rod (3) abuts against the pusher (51) to restrict the sliding of the pusher (51), and under the action of the elastic member (52), the pusher (51) pushes against the transmission rod (3) to keep the transmission rod (3) in the current position; when the hinge cup (1) is in the middle position, the sliding restriction of the pusher (51) is released, the elastic member (52) can drive the pusher (51) to slide, the transmission rod (3) is connected to the pusher (51) in a transmission, and under the drive of the pusher (51), the transmission rod (3) and the driven rod (4) can swing to drive the hinge cup (1) to move to the closed position.

2. The hinge mechanism according to claim 1, characterized in that, The power component (5) also includes a damper (53), the first end of which is connected to the pusher (51). The transmission rod (3), the driven rod (4), or the hinge seat (2) is provided with abutment (6). When the hinge cup (1) moves from the middle position to the closed position, the second end of the damper (53) abuts against the abutment (6). Under the drive of the pusher (51), the first end of the damper (53) moves toward the second end of the damper (53), and the damper (53) is compressed.

3. The hinge mechanism according to claim 1, characterized in that, The pusher (51) is provided with a first mounting groove (511), and the elastic member (52) is disposed in the first mounting groove (511), with one end of the elastic member (52) connected to the groove wall of the first mounting groove (511).

4. The hinge mechanism according to claim 2, characterized in that, The pusher (51) is provided with a second mounting groove (512), and the damper (53) is disposed in the second mounting groove (512). The first end of the damper (53) is connected to the groove wall of the second mounting groove (512).

5. The hinge mechanism according to any one of claims 1-4, characterized in that, The transmission rod (3) is hinged to the hinge seat (2) via a first hinge shaft (31), and the driven rod (4) is hinged to the hinge seat (2) via a second hinge shaft (41). In the extension direction of the elastic member (52), the first hinge shaft (31) is located behind the second hinge shaft (41). The push member (51) is provided with a transmission groove (513), and the transmission rod (3) has a transmission arm (32). When the hinge cup (1) is in the open position, the transmission arm (32) abuts against the transmission groove (513) to restrict the sliding of the pusher (51), and under the action of the elastic member (52), the transmission groove (513) pushes against the transmission arm (32) to keep the transmission rod (3) in the current position; when the hinge cup (1) is in the middle position, the transmission arm (32) rotates to the position to release the sliding restriction on the pusher (51), the elastic member (52) can drive the pusher (51) to slide, the transmission arm (32) is connected to the transmission groove (513), and under the drive of the transmission groove (513), the transmission rod (3) and the driven rod (4) can swing to drive the hinge cup (1) to move to the closed position.

6. The hinge mechanism according to any one of claims 1-4, characterized in that, The transmission rod (3) is hinged to the hinge seat (2) via a first hinge shaft (31), and the driven rod (4) is hinged to the hinge seat (2) via a second hinge shaft (41). In the extension direction of the elastic member (52), the first hinge shaft (31) is located in front of the second hinge shaft (41). The pusher (51) is provided with a transmission protrusion (514), and the transmission rod (3) has a transmission arm (32). When the hinge cup (1) is in the open position, the transmission arm (32) abuts against the transmission protrusion (514) to restrict the sliding of the pusher (51), and under the action of the elastic member (52), the transmission protrusion (514) pushes against the transmission arm (32) to keep the transmission rod (3) in the current position; when the hinge cup (1) is in the middle position, the transmission arm (32) rotates to the position to release the sliding restriction on the pusher (51), the elastic member (52) can drive the pusher (51) to slide, the transmission arm (32) is connected to the transmission protrusion (514) in a transmission connection, and under the drive of the transmission protrusion (514), the transmission rod (3) and the driven rod (4) can swing to drive the hinge cup (1) to move to the closed position.

7. The hinge mechanism according to claim 2, characterized in that, The hinge mechanism further includes an adjustment structure, which is movably connected to the damper (53) and is used to adjust the damping effect of the damper (53).

8. The hinge mechanism according to claim 7, characterized in that, The abutment (6) is slidably disposed on the transmission rod (3), the driven rod (4), or the hinge seat (2). The abutment (6) can move between a first position and a second position. The adjustment structure includes a first step (61) and a second step (62), and the first step (61) and the second step (62) are disposed on the abutment (6). When the hinge cup (1) is in the open position, the distance between the first step (61) and the damper (53) in the first direction is greater than the distance between the second step (62) and the damper (53) in the first direction. When the abutment (6) is in the first position and the hinge cup (1) moves from the middle position to the closed position, the second end of the damper (53) abuts against the first step (61); when the abutment (6) is in the second position and the hinge cup (1) moves from the middle position to the closed position, the second end of the damper (53) abuts against the second step (62).

9. The hinge mechanism according to claim 1, 2, 3, 4, 7, or 8, characterized in that, The limiting member (21) is a pin, which is inserted into the hinge seat (2); or, the limiting member (21) is a limiting protrusion, which is integrally formed into the hinge seat (2).

10. The hinge mechanism according to claim 1, 2, 3, 4, 7, or 8, characterized in that, The elastic element (52) is a compression spring.

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