Hinge mechanism and inward tilt-turn window comprising same

Abstract

The invention discloses a hinge mechanism and an inward tilt-turn window comprising the same. The hinge mechanism comprises a pull rod assembly which comprises a connecting base and a lock rod, the lock rod is arranged on the connecting base in a sliding mode, and the lock rod is provided with a first locking part and a driving part; the hinge comprises a fixed hinge and a movable hinge, and the movable hinge is rotationally arranged on the fixed hinge; the connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod; one end of the first connecting rod is hinged to the connecting base and can slide relative to the connecting base in the first direction, the other end is connected to the movable hinge, and the first connecting rod is provided with a second locking part; two ends of the second connecting rod are respectively hinged with the connecting seat and the first connecting rod; the other end of the third connecting rod is hinged to the second connecting rod and can slide along the second connecting rod; when the locking rod slides to enable the first locking part to be separated from the second locking part, the locking rod slides to drive the driving part to drive the third connecting rod to swing, and under driving of the third connecting rod, the first connecting rod and the second connecting rod can swing relative to the connecting base so that the window body can be switched to be in an inward-falling state.

Description

Technical Field

[0001] The invention relates to the technical field of door and window hardware accessories, in particular to a hinge mechanism and an inward-opening and tilting window comprising the hinge mechanism. Background Art

[0002] The inward opening and tilting window can drive the internal hinge device to lock or unlock the connection between the window and the window frame hinge by rotating the window handle, so that the user can operate the window into three different positions: closed, open, and top tilted according to the use requirements. For example, the Chinese patent with publication number CN112177469A discloses a hinge device for an inward opening and tilting window and an inward opening and tilting window. The hinge device of the inward opening and tilting window includes: a pull rod mechanism, including a connecting seat and a locking rod connected to the connecting seat for relative sliding; a hinge, which is arranged at a distance from the connecting seat when in use and is used to connect the window frame and the window, and a first locking portion is provided on the side of the locking rod close to the hinge; a connecting rod assembly, including a main connecting rod and an auxiliary connecting rod, one end of the main connecting rod can be slidably hinged to the connecting seat along the sliding direction of the locking rod, and the other end is fixedly connected to the movable leaf of the hinge, and the two ends of the auxiliary connecting rod are respectively The main connecting rod is hinged with the connecting seat and the main connecting rod, and a second locking part cooperating with the first locking part is provided on the main connecting rod; when the first locking part and the second locking part are locked, the connecting rod assembly, the pulling rod mechanism and the movable leaf of the hinge can swing synchronously relative to the fixed leaf of the hinge, and when the locking rod slides to make the first locking part disengage from the second locking part, the pulling rod mechanism can swing relative to the connecting rod assembly; a locking pin part is provided at the end of the locking rod close to the hinge, and a locking hole is provided at the other end of the movable leaf and / or the main connecting rod, and the locking pin part is inserted into the locking hole when the first locking part and the second locking part are locked, and the locking pin part slides with the locking rod to disengage from the locking hole when the first locking part is disengaged from the second locking part.

[0003] However, when the existing inward-opening and inward-tilting windows are switched to the top-tilting state, the handle must first be turned to drive the locking rod to slide to separate the first locking part and the second locking part, and then a force perpendicular to the sliding direction of the locking rod is applied to the window body to expand the connecting rod assembly, thereby achieving inward tilting. The operation is not simple and convenient enough. Summary of the invention

[0004] In order to overcome at least one of the defects of the prior art described above, the present invention provides a hinge mechanism and an inward-opening and tilting window including the hinge mechanism, aiming to simplify the operation steps of switching the window to the top inward-tilting state by optimizing the structural design, thereby improving the convenience and efficiency of user use.

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

[0006] A hinge mechanism comprises: a pull rod assembly, comprising a connecting seat and a locking rod, the locking rod is slidably arranged on the connecting seat along a first direction, the locking rod is provided with a first locking part and a driving part; a hinge, comprising a fixed leaf and a movable leaf, the movable leaf is rotatably arranged on the fixed leaf; a connecting rod assembly, comprising a first connecting rod, a second connecting rod and a third connecting rod; one end of the first connecting rod is hinged to the connecting seat and can slide relative to the connecting seat along a first direction, and the other end is connected to the movable leaf, the first connecting rod is provided with a second locking part; both ends of the second connecting rod are respectively hinged to the connecting seat and the first connecting rod. The third connecting rod is hinged to the connecting seat; one end of the third connecting rod is hinged to the connecting seat, and the other end is hinged to the second connecting rod and can slide along the second connecting rod; when the first locking part and the second locking part are locked, the pull rod assembly and the connecting rod assembly can swing synchronously relative to the fixed page; when the locking rod slides to disengage the first locking part from the second locking part, the sliding of the locking rod can drive the driving part to drive the third connecting rod to swing relative to the connecting seat and the second connecting rod, and under the drive of the third connecting rod, the first connecting rod and the second connecting rod can swing relative to the connecting seat.

[0007] According to some embodiments of the present invention, the driving part is a first slider, the first slider moves synchronously with the locking rod, and the third connecting rod is provided with a connected guide groove and a transmission groove; when the first locking part and the second locking part are locked, the extension direction of the guide groove is parallel to the first direction, and the extension direction of the transmission groove is inclined to the first direction; when the locking rod slides to disengage the first locking part from the second locking part, driven by the locking rod, the first slider can slide from the guide groove to the transmission groove along the first direction, so that the first slider is connected to the transmission groove in transmission, and the first slider continues to slide along the first direction to push the transmission groove to make the third connecting rod swing relative to the connecting seat and the second connecting rod.

[0008] According to some embodiments of the present invention, the connecting seat is provided with a first sliding groove extending along a first direction, and the first sliding block is slidably connected in the first sliding groove.

[0009] According to some embodiments of the present invention, the transmission groove includes a first sub-groove and a second sub-groove, the first sub-groove is connected to the guide groove, and the second sub-groove is connected to the first sub-groove to form a V-shape; when the first connecting rod and the second connecting rod swing relative to the connecting seat, the connecting seat can move away from the fixed page along the second direction; the second sub-groove, the first sub-groove and the guide groove are arranged in sequence in the first direction, and the first sub-groove is located in front of the guide groove in the second direction.

[0010] According to some embodiments of the present invention, an arc-shaped transition portion is formed at the intersection of the first sub-groove and the second sub-groove.

[0011] According to some embodiments of the present invention, the connecting seat is recessed with an avoidance groove, one end of the third connecting rod is rotatably connected to the avoidance groove, and the first connecting rod, the second connecting rod and the third connecting rod are arranged in sequence from top to bottom.

[0012] According to some embodiments of the present invention, the second connecting rod is provided with a second sliding groove extending along its length direction, and one end of the third connecting rod is provided with a second slider, the second slider is slidably connected to the second sliding groove, and the second slider can rotate relative to the second sliding groove.

[0013] According to some embodiments of the present invention, the connecting seat is provided with a third sliding groove extending along the first direction, a third sliding block is provided at one end of the first connecting rod, the third sliding block is slidably connected to the third sliding groove, and the third sliding block can rotate relative to the third sliding groove.

[0014] According to some embodiments of the present invention, one of the first locking portion and the second locking portion is a locking groove, and the other is a locking block.

[0015] In addition, the present invention also provides an inward-opening and inward-tilting window, comprising the hinge mechanism according to any one of claims 1 to 9, and also comprising a handle, a window frame and a window body, the fixed leaf is fixedly connected to the window frame, the connecting seat is fixedly connected to the window body, the handle is arranged on the window body and is transmission-connected to the locking rod, and the handle can control the sliding of the locking rod relative to the connecting seat.

[0016] In summary, the hinge mechanism and the tilt-and-turn window including the hinge mechanism provided by the present invention have at least the following technical effects:

[0017] The locking part is separated and the connecting rod assembly is driven simultaneously by the sliding of the locking rod. This design cleverly utilizes the power of the sliding of the locking rod to directly drive the connecting rod assembly to swing and unfold. The user no longer needs to apply additional vertical force to the window. The user can easily switch between multiple states of the window by simply turning the handle, which simplifies the operating steps of switching the window to the top inward tilted state, improves the efficiency of window state switching, reduces the difficulty of use, and improves user convenience and satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an inward opening and tilting window (in a closed state) according to an embodiment of the present invention;

[0019] Figure 2 It is a structural schematic diagram of an inward opening and tilting window (in a casement state) according to an embodiment of the present invention;

[0020] Figure 3Schematic diagram of the structure of an inward opening and tilting window (in the top inward tilting state, the frame of the window is not shown) according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the hinge assembly of an embodiment of the present invention when the window is in a closed state;

[0022] Figure 5 for Figure 4 A partial enlarged view of the middle A part;

[0023] Figure 6 for Figure 4 A partial enlarged view of part B in the middle;

[0024] Figure 7 It is a structural schematic diagram of the hinge assembly of an embodiment of the present invention when the window is in a flat open state;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the hinge assembly of the embodiment of the present invention when the window is in the top inward tilted state;

[0026] Fig. 9 It is a schematic diagram of the structure of the hinge assembly of the embodiment of the present invention when the window is in the top inward tilted state;

[0027] Fig.10 Schematic diagram of the structure of the third connecting rod according to an embodiment of the present invention.

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Pull rod assembly; 11. Connecting seat; 111. First slide groove; 112. Avoiding groove; 113. Third slide groove; 12. Locking rod; 121. First locking part; 122. Driving part; 2. Hinge; 21. Fixed leaf; 22. Movable leaf; 3. Connecting rod assembly; 31. First connecting rod; 311. Second locking part; 312. Third sliding block; 32. Second connecting rod; 321. Second slide groove; 33. Third connecting rod; 331. Guide groove; 332. Transmission groove; 3321. First sub-groove; 3322. Second sub-groove; 3323. Arc-shaped transition part; 333. Second sliding block; 4. Window frame; 5. Window body; 6. Handle. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 10 The present embodiment discloses a hinge mechanism, which includes a pull rod assembly 1, a hinge 2 and a connecting rod assembly 3; the pull rod assembly 1 includes a connecting seat 11 and a locking rod 12, the locking rod 12 is slidably arranged on the connecting seat 11 along a first direction, and the locking rod 12 is provided with a first locking portion 121 and a driving portion 122; the hinge 2 includes a fixed leaf 21 and a movable leaf 22, and the movable leaf 22 is rotatably arranged on the fixed leaf 21; the connecting rod assembly 3 includes a first connecting rod 31, a second connecting rod 32 and a third connecting rod 33; one end of the first connecting rod 31 is hinged to the connecting seat 11 and can slide relative to the connecting seat 11 along the first direction, and the other end is connected to the movable leaf 22, and the first connecting rod 31 is provided with a second locking portion 311; the two ends of the second connecting rod 32 are respectively connected to the connecting seat 11 and ... first connecting rod 31 is provided with a second locking portion 311, and the second connecting rod 31 is provided with a second locking portion 311; the first connecting rod 31 is provided with a second locking portion 311, and the second connecting rod 31 is provided with a second The first connecting rod 31 is hinged; one end of the third connecting rod 33 is hinged to the connecting seat 11, and the other end is hinged to the second connecting rod 32 and can slide along the second connecting rod 32; when the first locking portion 121 and the second locking portion 311 are locked, the first connecting rod 31, the second connecting rod 32 and the third connecting rod 33 are folded to form a straight line, and the pull rod assembly 1 and the connecting rod assembly 3 can swing synchronously relative to the fixed page 21; when the locking rod 12 slides to disengage the first locking portion 121 from the second locking portion 311, the sliding of the locking rod 12 can drive the driving portion 122 to drive the third connecting rod 33 to swing relative to the connecting seat 11 and the second connecting rod 32. Driven by the third connecting rod 33, the first connecting rod 31 and the second connecting rod 32 can swing relative to the connecting seat 11 and unfold to form a herringbone shape.

[0035] like Figure 4 , Figure 7 and Figure 8 As shown, specifically, in this embodiment, the first locking portion 121 is fixed relative to the locking rod 12 , and the first locking portion 121 moves synchronously with the locking rod 12 .

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, specifically, the connecting seat 11 is used to fix the connecting window 5, the fixed page 21 is used to fix the connecting window frame 4, and when the first connecting rod 31 and the second connecting rod 32 swing relative to the connecting seat 11, the connecting seat 11 can be driven away from the fixed page 21, thereby smoothly switching the window 5 to the top inward tilt state.

[0037] Specifically, in this embodiment, the first direction can refer to Fig. 9 The e1 direction in .

[0038] Specifically, the locking rod 12 is also used for transmission connection with the handle 6 , and the locking rod 12 can be driven to slide relative to the connecting seat 11 along the first direction by rotating the handle 6 .

[0039] The hinge mechanism provided in this embodiment realizes the separation of the locking part and the driving of the connecting rod assembly 3 simultaneously through the sliding of the locking rod 12. This design cleverly utilizes the power of the sliding of the locking rod 12 to directly drive the connecting rod assembly 3 to swing and unfold. There is no need for the user to apply additional vertical force to the window 5. The user can easily switch between multiple states of the window 5 by simply turning the handle 6, which simplifies the operating steps of switching the window 5 to the top inward tilted state, improves the efficiency of the state switching of the window 5, reduces the difficulty of use, and improves the user's convenience and satisfaction.

[0040] like Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig. 9As shown, preferably, in the present embodiment, the driving portion 122 is a first slider, and the first slider moves synchronously with the locking rod 12, and the third connecting rod 33 is provided with a guide groove 331 and a transmission groove 332 connected thereto; when the first locking portion 121 and the second locking portion 311 are locked, the extension direction of the guide groove 331 is parallel to the first direction, and the extension direction of the transmission groove 332 is inclined to the first direction; when the locking rod 12 slides to disengage the first locking portion 121 from the second locking portion 311, driven by the locking rod 12, the first slider can slide from the guide groove 331 to the transmission groove 332 along the first direction, so that the first slider is transmission-connected with the transmission groove 332, and the first slider continues to slide along the first direction to push the transmission groove 332 to make the third connecting rod 33 swing relative to the connecting seat 11 and the second connecting rod 32, and driven by the third connecting rod 33, the first connecting rod 33 The rod 31 and the second connecting rod 32 shell swing and unfold relative to the connecting seat 11, thereby driving the connecting seat 11 away from the fixed page 21, and the window 5 can be smoothly switched to the top inward tilted state; when it is necessary to fold the first connecting rod 31, the second connecting rod 32 and the third connecting rod 33 to form a straight line again, the locking rod 12 can be driven to slide along the first direction, and the first slider moves synchronously with the locking rod 12. The first slider can drive the third connecting rod 33 to swing through the transmission connection between the first slider and the transmission groove 332. Driven by the third connecting rod 33, the first connecting rod 31, the second connecting rod 32 can be folded with the third connecting rod 33 to form a straight line structure. After the first slider slides out of the transmission groove 332, it is slidably connected to the guide groove 331. The sliding rod can continue to move along the first direction until the first matching portion and the second matching portion are locked, and the window 5 can be switched to the closed state or the flat open state.

[0041] With such arrangement, on the one hand, by designing the first slider as the driving part 122 and making it move synchronously with the locking rod 12, a close linkage of the locking and unlocking actions is achieved. This design not only simplifies the operation steps, but also ensures that the movement of the first slider can be accurately triggered when the locking rod 12 slides, thereby efficiently starting the subsequent unlocking and window 5 state switching process; on the other hand, the design of the guide groove 331 and the transmission groove 332 on the third connecting rod 33, when it is necessary to lock the first locking part 121 and the second locking part 311, the guide groove 331 is parallel to the first direction, thereby ensuring the stability of the locking action, and in the process of unfolding the connecting rod assembly 3, by designing the first slider as the driving part 122 and making it move synchronously with the locking rod 12 moves synchronously, realizing the close linkage of locking and unlocking actions. This design not only simplifies the operating steps, but also ensures that the movement of the first slider can be accurately triggered when the lock rod 12 slides, thereby efficiently starting the subsequent unlocking and window 5 state switching process; on the other hand, the design of the connecting rod assembly 3 makes the connection between the various components tight and stable, ensuring the stability and safety of the window 5 during the switching process, and the cooperation of the first slider with the guide groove 331 and the transmission groove 332, as well as the sliding design of the lock rod 12 and the connecting seat 11, embody the compactness and rationality of the structural design. The user only needs to perform a simple sliding operation of the lock rod 12 to realize the switching of different states of the window 5, and the operation is easy and reliable.

[0042] like Figure 8 and Fig. 9 As shown, preferably, in this embodiment, the connecting seat 11 is provided with a first slide groove 111 extending along the first direction, and the first slider is slidably connected in the first slide groove 111; with such a configuration, on the one hand, the first slide groove 111 provides precise guidance for the first slider, ensuring that the first slider can move along a predetermined path during the sliding process, avoiding offset or jamming, and this design enables the first slider to accurately cooperate with the guide groove 331 and the transmission groove 332, thereby achieving precise transmission and positioning, forming a stable sliding connection structure, improving the stability and reliability of the entire mechanism, reducing the risk of failure due to looseness or wear, and extending the service life of the mechanism; on the other hand, the first slide groove 111 extends along the first direction, which is consistent with the moving direction of the locking rod 12, thereby optimizing space utilization, making the entire mechanism more compact and efficient, reducing unnecessary space waste, and improving the integration and overall performance of the mechanism.

[0043] like Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig. 9As shown, preferably, in this embodiment, the transmission groove 332 includes a first sub-groove 3321 and a second sub-groove 3322, the first sub-groove 3321 is connected to the guide groove 331, and the second sub-groove 3322 is connected to the first sub-groove 3321 to form a V-shape; when the first connecting rod 31 and the second connecting rod 32 swing relative to the connecting seat 11, the connecting seat 11 can move away from the fixed page 21 along the second direction; the second sub-groove 3322, the first sub-groove 3321 and the guide groove 331 are arranged in sequence in the first direction, and the first sub-groove 3321 is located in front of the guide groove 331 in the second direction. This design enables the first connecting rod 31 to smoothly enter the first sub-groove 3321 after leaving the guide groove 331, and continue to move along the path of the V-shaped groove. In this way, when the lock rod 12 slides to make the first locking portion 121 disengage from the second locking portion 311, the first slider, driven by the lock rod 12, slides along the first slide groove 111 to the end of the guide groove 331 and smoothly enters the first sub-groove 3321. At this time, the first slider forms a transmission connection with the side wall of the first sub-groove 3321, that is, the first slider can push the side wall of the first sub-groove 3321 during the sliding process, thereby driving the third connecting rod 33 to start swinging relative to the connecting seat 11 and the second connecting rod 32. As the first slider continues to slide in the first sub-groove 3321, it gradually approaches the first sub-groove 33 21 and the second sub-groove 3322, when the first slider reaches the connection, it smoothly enters the second sub-groove 3322 along the path of the V-groove and continues to slide in the second sub-groove 3322. During this process, the first slider maintains transmission connection with the side walls of the first sub-groove 3321 and the second sub-groove 3322 in turn, ensuring the continuity and stability of the transmission. When the first slider slides to the end in the second sub-groove 3322, the third connecting rod 33 has completed a predetermined swing angle under the push of the first slider, and the first connecting rod 31 and the second connecting rod 32 have also completed the swing expansion accordingly. In this way, on the one hand, the smooth sliding of the first slider between the first sub-groove 3321 and the second sub-groove 3322 ensures the continuity and stability of the transmission and avoids the impact and wear caused by sudden change of direction; on the other hand, by accurately designing the shape and arrangement order of the first sub-groove 3321 and the second sub-groove 3322, the swing angles of the first connecting rod 31 and the second connecting rod 32 can be accurately controlled to meet different usage requirements; on the other hand, the design of the V-groove provides a larger contact area and swing space, so that the hinge mechanism can more flexibly adapt to different usage scenarios and installation conditions.

[0044] Specifically, in this embodiment, the second direction can refer to Fig. 9 The e2 direction in .

[0045] like Figure 7 , Figure 8 and Fig. 9As shown, preferably, in this embodiment, an arc-shaped transition portion 3323 is formed at the intersection of the first sub-slot 3321 and the second sub-slot 3322. In this way, the existence of the arc-shaped transition portion 3323 enables the first slider to experience a smooth and continuous transition stage in the process of sliding from the first sub-slot 3321 to the second sub-slot 3322, which reduces the impact force and friction force caused by the sudden change of the notch, prolongs the service life of the mechanism, and ensures the smoothness of the transmission. Secondly, the smooth curve design of the arc-shaped transition portion 3323 makes the first slider contact with the groove wall more uniformly during the sliding process, reduces the wear caused by local stress concentration, which not only improves the durability of the mechanism, but also reduces the maintenance cost. In addition, the design of the arc-shaped transition portion 3323 enables the first slider to transmit power more smoothly during the sliding process, reduces the energy loss caused by the sudden change of the notch, which improves the efficiency of the transmission, enables the mechanism to output more power or achieve a faster response speed under the same input, so that the user can feel a smoother and smoother transmission process when operating the hinge mechanism.

[0046] It should be noted that, in some other embodiments, the transmission groove 332 may also be, but not limited to, U-shaped, C-shaped, L-shaped, etc., which can be selected according to actual needs and is not limited here.

[0047] like Figure 4 and Figure 8 As shown, preferably, in this embodiment, the connecting seat 11 is recessed with an avoidance groove 112, one end of the third connecting rod 33 is rotatably connected to the avoidance groove 112, and the first connecting rod 31, the second connecting rod 32 and the third connecting rod 33 are arranged in sequence from top to bottom. In this way, the design of the avoidance groove 112 enables the third connecting rod 33 to be more compactly installed on the connecting seat 11, effectively utilizing space resources, and this arrangement method avoids interference between the connecting rods, ensuring the compactness and stability of the mechanism.

[0048] like Figure 7 , Figure 8 and Fig. 9 As shown, preferably, in this embodiment, the second connecting rod 32 is provided with a second slide groove 321 extending along its length direction, and one end of the third connecting rod 33 is provided with a second slider 333, the second slider 333 is slidably connected to the second slide groove 321, and the second slider 333 can rotate relative to the second slide groove 321. In this way, the matching design of the second slider 333 and the second slide groove 321 can limit the motion range of the third connecting rod 33 to a certain extent, preventing it from swinging excessively or deviating from the predetermined trajectory, and this design enhances the stability of the mechanism, so that it can perform the predetermined action more reliably.

[0049] like Figure 7 , Figure 8 and Fig. 9As shown, preferably, in this embodiment, the connecting seat 11 is provided with a third slide groove 113 extending along the first direction, and one end of the first connecting rod 31 is provided with a third slider 312, the third slider 312 is slidably connected to the third slide groove 113, and the third slider 312 can rotate relative to the third slide groove 113. In this way, the matching design of the third slider 312 and the third slide groove 113 can limit the movement range of the first connecting rod 31 to a certain extent, prevent it from swinging excessively or deviating from the predetermined trajectory, and this design enhances the stability of the mechanism, enables it to perform the predetermined action more reliably, and improves the reliability and durability of the overall mechanism.

[0050] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, preferably, in this embodiment, the first locking portion 121 is a locking groove, and the second locking portion 311 is a locking block. In this way, the matching design of the locking groove and the locking block can form a stable locking structure. When the locking block is fully embedded in the locking groove, the friction between the two can prevent the locking block from accidentally sliding out, thereby ensuring the stability and safety of the mechanism. In addition, the design of the locking groove and the locking block makes the locking and unlocking operations simple and intuitive. The user can easily achieve the locking and unlocking functions by simply pushing or pulling the locking block, without complicated operating steps or tools.

[0051] It should be noted that, in some other embodiments, the first locking portion 121 may be a locking block, and the second locking portion 311 may be a locking groove correspondingly, which can be selected according to actual needs and is not limited here.

[0052] like Figure 7 As shown, preferably, in this embodiment, the movable page 22 is a four-bar linkage, and one end of the first link 31 is hinged to one of the links of the four-bar linkage. In this way, the four-bar linkage can provide stable support and strength through reasonable rod layout and connection design, which enables the movable page 22 to maintain a stable state of motion when bearing load or external force, and is not prone to deformation or damage. In addition, the four-bar linkage has a compact structure and can realize complex motion functions in a limited space, which makes the design of the movable page 22 more flexible and can adapt to different installation spaces and layout requirements. Furthermore, the rod length and connection point position of the four-bar linkage can be adjusted and optimized according to actual needs. By changing these parameters, the performance parameters such as the motion trajectory, speed and acceleration of the movable page 22 can be flexibly adjusted to meet specific application requirements.

[0053] It should be noted that, in some other embodiments, the movable page 22 can also be a movable seat rotatably connected to the fixed page 21, and one end of the first connecting rod 31 can be fixed to the movable seat and rotate with the movable seat; it can be understood that the structure of the movable page 22 is not limited to the above-mentioned four-bar linkage and movable seat, and can be selected according to actual needs, and no sole limitation is made here.

[0054] like Figure 1 , Figure 2 and Figure 3 As shown, in addition, this embodiment also provides an inward opening and tilting window, including the hinge mechanism as above, and also including a handle 6, a window frame 4 and a window body 5, the fixing leaf 21 is fixedly connected to the window frame 4, the connecting seat 11 is fixedly connected to the window body 5, the handle 6 is arranged on the window body 5 and is transmission-connected to the locking rod 12, and the handle 6 can control the sliding of the locking rod 12 relative to the connecting seat 11. Specifically, in this embodiment, Figure 1 As shown, when the handle 6 is in a vertical downward position, the first locking portion 121 and the second locking portion 311 are locked with each other, and the locking rod 12 locks the window 5 on the window frame 4, and the window 5 is in a closed state; Figure 2 As shown, when the handle 6 rotates to the horizontal position, the locking rod 12 releases the lock on the window 5, and the window 5 can be opened inward by the rotation of the hinge 2. At this time, the first locking portion 121 and the second locking portion 311 are still locked with each other, and the pull rod assembly 1 and the connecting rod assembly 3 are in a straight line as a whole and can swing synchronously relative to the fixed hinge 21; Figure 3 As shown, when the handle 6 is rotated to a vertically upward position, the first locking portion 121 and the second locking portion 311 are separated from each other, and the locking rod 12 continues to slide to drive the driving portion 122 to drive the third connecting rod 33 to swing relative to the connecting seat 11 and the second connecting rod 32. Driven by the third connecting rod 33, the first connecting rod 31 and the second connecting rod 32 can swing and unfold relative to the connecting seat 11 to form a herringbone shape, thereby making the window 5 move away from the window frame 4 along the second direction, and the window 5 can be switched to the inward tilted state, and the upper part of the window 5 is tilted toward the room to achieve the ventilation function.

[0055] In summary, the hinge mechanism and the tilt-and-turn window including the hinge mechanism disclosed in the present invention can at least bring the following beneficial technical effects:

[0056] 1) The locking part is separated and the connecting rod assembly 3 is driven by the sliding of the lock rod 12. This design cleverly uses the power of the sliding of the lock rod 12 to directly drive the connecting rod assembly 3 to swing and unfold. The user does not need to apply additional vertical force to the window 5. The user only needs to turn the handle 6 to easily switch between multiple states of the window 5, which simplifies the operation steps of switching the window 5 to the top inward tilt state;

[0057] 2) By designing the first slider as the driving part 122 and making it move synchronously with the lock rod 12, a close linkage between the locking and unlocking actions is achieved. This design not only simplifies the operation steps, but also ensures that the movement of the first slider can be accurately triggered when the lock rod 12 slides, thereby efficiently starting the subsequent unlocking and window 5 state switching process;

[0058] 3) By designing the first slider as the driving part 122 and making it move synchronously with the lock rod 12, a close linkage between the locking and unlocking actions is achieved. This design not only simplifies the operation steps, but also ensures that the movement of the first slider can be accurately triggered when the lock rod 12 slides, thereby efficiently starting the subsequent unlocking and window 5 state switching process;

[0059] 4) By accurately designing the shapes and arrangement order of the first slot 3321 and the second slot 3322, it is possible to accurately control the swing angles of the first connecting rod 31 and the second connecting rod 32, thereby meeting different usage requirements; and the V-shaped slot design provides a larger contact area and swing space, so that the hinge mechanism can more flexibly adapt to different usage scenarios and installation conditions.

[0060] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A hinge mechanism, characterized in that: include: A pull rod assembly (1) comprises a connecting seat (11) and a locking rod (12), wherein the locking rod (12) is slidably arranged on the connecting seat (11) along a first direction, and the locking rod (12) is provided with a first locking portion (121) and a driving portion (122); The hinge (2) comprises a fixed leaf (21) and a movable leaf (22), wherein the movable leaf (22) is rotatably arranged on the fixed leaf (21); A connecting rod assembly (3), comprising a first connecting rod (31), a second connecting rod (32) and a third connecting rod (33); one end of the first connecting rod (31) is hinged to the connecting seat (11) and can slide relative to the connecting seat (11) in a first direction, and the other end is connected to the movable leaf (22); the first connecting rod (31) is provided with a second locking portion (311); the two ends of the second connecting rod (32) are respectively hinged to the connecting seat (11) and the first connecting rod (31); one end of the third connecting rod (33) is hinged to the connecting seat (11), and the other end is hinged to the second connecting rod (32) and can slide along the second connecting rod (32); When the first locking portion (121) and the second locking portion (311) are locked, the pull rod assembly (1) and the connecting rod assembly (3) can swing synchronously relative to the fixed page (21); when the locking rod (12) slides to disengage the first locking portion (121) from the second locking portion (311), the sliding of the locking rod (12) can drive the driving portion (122) to drive the third connecting rod (33) to swing relative to the connecting seat (11) and the second connecting rod (32), and under the drive of the third connecting rod (33), the first connecting rod (31) and the second connecting rod (32) can swing relative to the connecting seat (11).

2. The hinge mechanism according to claim 1, characterized in that: The driving part (122) is a first slider, the first slider moves synchronously with the locking rod (12), and the third connecting rod (33) is provided with a guide groove (331) and a transmission groove (332) connected to each other; When the first locking portion (121) and the second locking portion (311) are locked, the extension direction of the guide groove (331) is parallel to the first direction, and the extension direction of the transmission groove (332) is inclined to the first direction; when the locking rod (12) slides to make the first locking portion (121) disengage from the second locking portion (311), driven by the locking rod (12), the first slider can slide from the guide groove (331) to the transmission groove (332) along the first direction, so that the first slider is transmission-connected with the transmission groove (332); the first slider continues to slide along the first direction to push the transmission groove (332) so that the third connecting rod (33) swings relative to the connecting seat (11) and the second connecting rod (32).

3. The hinge mechanism according to claim 2, characterized in that: The connecting seat (11) is provided with a first sliding groove (111) extending along a first direction, and the first sliding block is slidably connected in the first sliding groove (111).

4. The hinge mechanism according to claim 2, characterized in that: The transmission groove (332) comprises a first sub-groove (3321) and a second sub-groove (3322), the first sub-groove (3321) is connected to the guide groove (331), and the second sub-groove (3322) is connected to the first sub-groove (3321) to form a V-shape; When the first connecting rod (31) and the second connecting rod (32) swing relative to the connecting seat (11), the connecting seat (11) can move away from the fixed leaf (21) along a second direction; The second sub-groove (3322), the first sub-groove (3321) and the guide groove (331) are arranged in sequence in the first direction, and the first sub-groove (3321) is located in front of the guide groove (331) in the second direction.

5. The hinge mechanism according to claim 4, characterized in that: An arc-shaped transition portion (3323) is formed at the intersection of the first sub-groove (3321) and the second sub-groove (3322).

6. The hinge mechanism according to claim 1, characterized in that: The connecting seat (11) is recessed with an avoidance groove (112), one end of the third connecting rod (33) is rotatably connected to the avoidance groove (112), and the first connecting rod (31), the second connecting rod (32) and the third connecting rod (33) are arranged in sequence from top to bottom.

7. The hinge mechanism according to claim 1, characterized in that: The second connecting rod (32) is provided with a second sliding groove (321) extending along its length direction, and one end of the third connecting rod (33) is provided with a second sliding block (333), the second sliding block (333) is slidably connected to the second sliding groove (321), and the second sliding block (333) can rotate relative to the second sliding groove (321).

8. The hinge mechanism according to claim 1, characterized in that: The connecting seat (11) is provided with a third sliding groove (113) extending along the first direction, and one end of the first connecting rod (31) is provided with a third sliding block (312), and the third sliding block (312) is slidably connected to the third sliding groove (113), and the third sliding block (312) can rotate relative to the third sliding groove (113).

9. The hinge mechanism according to claim 1, characterized in that: One of the first locking portion (121) and the second locking portion (311) is a locking groove, and the other is a locking block.

10. Inward opening and tilting window, characterized in that: It comprises a hinge mechanism as described in any one of claims 1 to 9, and also comprises a handle (6), a window frame (4) and a window body (5), wherein the fixed leaf (21) is fixedly connected to the window frame (4), the connecting seat (11) is fixedly connected to the window body (5), the handle (6) is arranged on the window body (5) and is transmission-connected to the locking rod (12), and the handle (6) can control the sliding of the locking rod (12) relative to the connecting seat (11).

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