Door and window automatic inward tilting structure and door and window

Abstract

The invention discloses an automatic inward tilting structure of a door and window and the door and window. According to the inward tilting structure, a transmission assembly is in transmission connection with a base, one end of a driving rocker arm is rotationally connected with the transmission assembly, the other end of the driving rocker arm is in transmission connection with a hinge assembly, one end of a short rocker arm is rotationally connected with the base, and the other end of the short rocker arm is rotationally connected with the hinge assembly; the driving rocker arm is provided with a driving groove, the middle section of the hinge assembly is provided with a driving shaft corresponding to the driving groove, and the driving shaft is slidably connected to the driving groove; or the hinge assembly is provided with a driving groove, the driving rocker arm is provided with a driving shaft corresponding to the driving groove, and the driving shaft is connected to the driving groove in a sliding mode. According to the invention, the automatic inward tilting and retracting functions of the door and window are realized, and a user does not need to strenuously rotate the handle and pull the door and window and does not need to worry about the problem of insufficient driving force in an electric opening mode.

Description

Technical Field

[0001] The present invention relates to the technical field of doors and windows, and in particular to an automatic inward-tilting structure for doors and windows and the doors and windows. Background Art

[0002] In modern architectural design, inward-tilting doors and windows are widely used in residences, offices and various public buildings due to their unique ventilation and safety protection functions. The design of these doors and windows aims to achieve natural indoor air circulation and effectively prevent children from accidentally falling through the inward-tilting opening method, thus improving the safety and comfort of the living and working environment.

[0003] At present, the mainstream inward-tilting door and window opening methods on the market are mainly divided into two categories: manual and electric. The manual opening mechanism relies on the direct force of the operator, usually requiring the user to rotate the handle on the door and window to a preset position. This action triggers the movement of the transmission component, which in turn drives the hinge component to change to the inward-tilting state. Afterwards, the operator needs to apply additional force to smoothly pull the door and window to completely tilt inward. This process is not only cumbersome to operate, but may be particularly inconvenient, especially for the elderly, children or people with limited physical strength. In addition, the accuracy and force control of manual operation are also one of the key factors affecting whether the door and window can be smoothly tilted inward.

[0004] In contrast, the electric opening method aims to simplify the operation process and improve the user experience through motor drive. However, the existing electric inward-tilting doors and windows face a significant challenge in the implementation process: when the motor drives the doors and windows to switch from the closed state to the inward-tilting state, it needs to provide a considerable driving force to ensure the smooth completion of the action. This is because the weight of the doors and windows themselves, the friction resistance, and the mechanical resistance during the hinge conversion process work together to increase the driving force demand. If the motor driving force is insufficient, it may cause the doors and windows to fail to smoothly enter the inward-tilting state, or even damage the transmission mechanism, affecting the reliability and service life of the product. Therefore, how to effectively control energy consumption and costs while ensuring sufficient driving force has become a technical problem in the design of electric inward-tilting doors and windows.

[0005] In summary, whether manual or electric opening, existing inward-tilting doors and windows have certain limitations in terms of operational convenience, driving force requirements and energy efficiency management. A more efficient, convenient and reliable solution is urgently needed to meet market demand. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic inward-tilting structure for doors and windows and doors and windows.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides an automatic inward tilting structure for doors and windows, comprising: a hinge assembly, a transmission assembly, a base, a driving rocker arm and a short rocker arm, wherein the transmission assembly is drivingly connected to the base, one end of the driving rocker arm is rotatably connected to the transmission assembly, and the other end is drivingly connected to the hinge assembly, one end of the short rocker arm is rotatably connected to the base, and the other end is rotatably connected to the hinge assembly;

[0009] The hinge assembly is connected with a sliding member, the sliding member is slidably connected to the base, the driving rocker arm is provided with a driving groove, the middle section of the hinge assembly is provided with a driving shaft corresponding to the driving groove, and the driving shaft is slidably connected to the driving groove;

[0010] Or the hinge assembly is provided with a driving groove, the driving rocker arm is provided with a driving shaft corresponding to the driving groove, and the driving shaft is slidably connected to the driving groove.

[0011] In a specific embodiment, the transmission assembly is transmission-connected to the bottom of the base, a long groove is provided on the base, and the sliding member is slidably connected to the long groove.

[0012] In a specific embodiment, a bayonet position is further provided at one end of the driving groove close to the transmission assembly. When the driving shaft moves to the bayonet position, the hinge assembly is separated from the transmission assembly and is in an inverted state.

[0013] In a specific embodiment, a bayonet position is further provided at one end of the driving groove close to the sliding member, and when the driving shaft moves to the bayonet position, the hinge assembly is separated from the transmission assembly and is in an inverted state.

[0014] In a specific embodiment, the driving slot and the driving shaft are both located at eccentric positions along a center line in a length direction of the hinge assembly.

[0015] In a specific embodiment, the transmission assembly includes a driving rod and a latch member, the driving rod is slidably connected to the bottom of the base, the driving rod is connected to the latch member and the driving rocker arm through a transmission shaft, the latch member is provided with a locking protrusion at one end away from the driving rod, the hinge assembly is provided with a lock seat, and the lock seat is provided with a lock groove for inserting the locking protrusion.

[0016] In a specific embodiment, the hinge assembly includes a long rocker arm and a hinge end, the sliding member is arranged at an end of the long rocker arm away from the hinge end, and the lock seat is arranged at the hinge end.

[0017] In a specific embodiment, the number of the driving shafts is two, and the two driving shafts are arranged in parallel.

[0018] The automatic inward tilting structure of doors and windows of the present invention has the following beneficial effects compared with the prior art: by designing the sliding connection of the transmission assembly on the base, and the ingenious cooperation of the driving rocker arm and the short rocker arm with the transmission assembly and the hinge assembly, the automatic inward tilting and recovery functions of the doors and windows are realized, and the user does not need to laboriously rotate the handle and pull the doors and windows like the traditional manual inward tilting doors and windows, nor does he need to worry about the problem of insufficient driving force in the electric opening mode. This innovative design greatly simplifies the operation process and improves the user experience, especially for people with limited strength, it is more friendly and convenient; in addition, by opening and closing the driving rocker arm and the short rocker arm, the force demand in the driving process is effectively dispersed. When the transmission assembly is driven toward the end away from the short rocker arm, the sliding of the sliding member on the base separates the hinge assembly from the transmission assembly and enters the inward tilting state. The driving force required for this process is reasonably dispersed, reducing the requirements for the motor or manual operation force. On the contrary, during the recovery process, the closing action of the driving rocker arm and the short rocker arm assists the transmission assembly to pull the hinge assembly back to its original position, which also reduces the power consumption.

[0019] In a second aspect, an embodiment of the present invention provides a door and window, including the automatic inward-tilting structure of the door and window as described above.

[0020] The door and window of the present invention has the following beneficial effects compared with the prior art: by designing the sliding connection of the transmission assembly on the base, and the ingenious cooperation of the driving rocker arm and the short rocker arm with the transmission assembly and the hinge assembly, the automatic inward tilt and recovery function of the door and window is realized. The user does not need to laboriously rotate the handle and pull the door and window like the traditional manual inward tilt door and window, nor does he need to worry about the problem of insufficient driving force in the electric opening mode. This innovative design greatly simplifies the operation process and improves the user experience, especially for people with limited strength, it is more friendly and convenient; in addition, by opening and closing the driving rocker arm and the short rocker arm, the force requirement in the driving process is effectively dispersed. When the transmission assembly is driven toward the end away from the short rocker arm, the sliding of the sliding member on the base separates the hinge assembly from the transmission assembly and enters the inward tilt state. The driving force required for this process is reasonably dispersed, reducing the requirements for the motor or manual operation force. On the contrary, during the recovery process, the closing action of the driving rocker arm and the short rocker arm assists the transmission assembly to pull the hinge assembly back to its original position, which also reduces the power consumption.

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A structural schematic diagram of the first embodiment of the automatic inward-tilting structure for doors and windows provided by the present invention in an inward-tilting state;

[0024] Figure 2 for Figure 1 Schematic diagram of the decomposition of

[0025] Figure 3 A structural schematic diagram of a second embodiment of the automatic inward-tilting structure for doors and windows provided by the present invention in an inward-tilting state;

[0026] Figure 4 for Figure 3 Schematic diagram of the decomposition of

[0027] Figure 5 A structural schematic diagram of the first embodiment of the automatic inward-tilting structure of doors and windows provided by the present invention in a retracted state;

[0028] Figure 6 for Figure 5 Schematic diagram of the decomposition.

[0029] In the figure: 10, hinge assembly; 11, long rocker arm; 111, sliding member; 112, drive shaft; 12, hinge end; 121, lock seat; 20, transmission assembly; 21, drive rod; 22, latch member; 221, locking protrusion; 23, transmission shaft; 30, base; 31, long groove; 40, drive rocker arm; 41, drive groove; 411, bayonet position; 50, short rocker arm. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0037] See also Figures 1 to 6 According to the specific embodiment shown, the present invention discloses an automatic inward-tilting structure for doors and windows, comprising: a hinge assembly 10, a transmission assembly 20, a base 30, a driving rocker arm 40 and a short rocker arm 50, wherein the transmission assembly 20 is drivingly connected to the base 30, one end of the driving rocker arm 40 is rotatably connected to the transmission assembly 20, and the other end is drivingly connected to the hinge assembly 10, one end of the short rocker arm 50 is rotatably connected to the base 30, and the other end is rotatably connected to the hinge assembly 10, a sliding member 111 is connected to the hinge assembly 10, and the sliding member 111 is slidably connected to the base 30; a driving groove 41 is provided on the driving rocker arm 40, and a driving shaft 112 corresponding to the driving groove 41 is provided in the middle section of the hinge assembly 10, and the driving shaft 112 is slidably connected to the driving groove 41.

[0038] Specifically, by designing a sliding connection of the transmission assembly 20 on the base 30, and cleverly cooperating the driving rocker arm 40 and the short rocker arm 50 with the transmission assembly 20 and the hinge assembly 10, the automatic inward folding and retracting functions of the doors and windows are realized. Users do not need to laboriously rotate the handle and pull the doors and windows like traditional manual inward folding doors and windows, nor do they need to worry about insufficient driving force in the electric opening method. This innovative design greatly simplifies the operation process and improves the user experience, making it more friendly and convenient, especially for people with limited strength. In addition, by driving the opening and closing of the rocker arm 40 and the short rocker arm 50, the power requirements in the driving process are effectively dispersed. When the transmission assembly 20 is driven toward the end away from the short rocker arm 50, the sliding of the sliding member 111 on the base 30 causes the hinge assembly 10 to separate from the transmission assembly 20 and enter the inverted state. The driving force required for this process is reasonably dispersed, reducing the requirements for the motor or manual operation force. On the contrary, during the recovery process, the closing action of the driving rocker arm 40 and the short rocker arm 50 assists the transmission assembly 20 to pull the hinge assembly 10 back to its original position, which also reduces the power consumption. In addition, since the automatic inverted and recovered doors and windows are realized, users do not need to directly contact the moving parts of the doors and windows, thereby reducing the safety risks during the operation. Especially for children, this design can effectively prevent accidental injuries caused by misoperation. In addition, due to the versatility and flexibility of its design principle, the automatic inverted structure of doors and windows can be widely used in different types of door and window systems, including but not limited to wooden doors and windows, aluminum alloy doors and windows, plastic steel doors and windows, etc., providing more choices and customization space for architectural designers and users.

[0039] More specifically, see Figure 1 to Figure 2 In the first embodiment shown, when the transmission assembly 20 is pushed or pulled, the driving rocker arm 40 rotates accordingly, thereby driving the driving slot 41 thereon to move. Due to the sliding connection between the driving shaft 112 and the driving slot 41, the hinge assembly 10 can respond to this displacement and move along a predetermined path. This linkage mechanism ensures the stability and reliability of the door and window during the inward tilting and retraction process.

[0040] That is to say, through the sliding connection between the drive slot 41 and the drive shaft 112, efficient transmission between the transmission assembly 20 and the hinge assembly 10 is achieved. This design not only reduces the energy loss in the transmission process, but also improves the response speed and accuracy of the action. In addition, the matching design of the drive slot 41 and the drive shaft 112 helps to reduce the shaking and unstable factors in the transmission process. This enhanced stability is of great significance for improving the durability and service life of doors and windows. In addition, compared with the traditional complex transmission mechanism, the sliding connection between the drive slot 41 and the drive shaft 112 achieves structural simplification and optimization, which not only reduces the manufacturing cost, but also helps to improve the overall performance and reliability of the product. In addition, since the design of the drive slot 41 and the drive shaft 112 has certain versatility and flexibility, it can adapt to different types of door and window systems and installation environments. This enhanced adaptability provides more choices and customization space for architectural designers and users.

[0041] See also Figures 1 to 4 As shown, in one embodiment, the transmission assembly 20 is slidably connected to the bottom of the base 30 , the base 30 is provided with a long groove 31 , and the sliding member 111 is slidably connected to the long groove 31 .

[0042] Specifically, one end of the hinge assembly 10 is slidably connected to the long groove 31 through the sliding member 111, so that the hinge assembly 10 can slide back and forth along the long groove 31. When the hinge assembly 10 is separated from the transmission assembly 20, the sliding member 111 is located at the rightmost side of the long groove 31; when the hinge assembly 10 and the transmission assembly 20 are closed, the sliding member 111 is located at the leftmost side of the long groove 31. In other words, when the transmission assembly 20 is pushed toward the end away from the short rocker arm 50, it is linked with the driving rocker arm 40 to cause the hinge assembly 10 to start sliding to the right along the long groove 31. As the sliding proceeds, the hinge assembly 10 is gradually separated from the transmission assembly 20 until the sliding member 111 reaches the rightmost side of the long groove 31. At this time, the door and window are in a completely tilted state. On the contrary, when the transmission assembly 20 is pulled toward the end close to the short rocker arm 50, it is linked with the driving rocker arm 40 to guide the hinge assembly 10 to start sliding to the left along the long groove 31. As the sliding progresses, the hinge assembly 10 gradually closes with the transmission assembly 20 until the sliding member 111 reaches the leftmost side of the long slot 31. At this time, the door and window are restored to the closed state.

[0043] More specifically, the precise guidance of the sliding member 111 by the long groove 31 realizes the strict control of the moving path of the hinge assembly 10, which not only ensures the stability of the doors and windows during the inward tilting and recovery process, but also improves the accuracy and reliability of the action. In addition, the transmission assembly 20 is designed below the base 30, and the sliding connection with the sliding member 111 by the long groove 31 makes the whole structure more compact. This design not only saves space, but also helps to improve the overall aesthetics and installation convenience of the product. In addition, the guiding role of the long groove 31 is not limited to path control, but also can reduce the shaking of the hinge assembly 10 during the movement to a certain extent, and enhance the stability of the structure, which is of great significance for improving the durability and service life of the doors and windows. In addition, through the design of the sliding connection and the long groove 31, the operation process of the doors and windows inward tilting and recovery is simplified, and the user can easily switch the state of the doors and windows without complicated operations or applying excessive force.

[0044] See also Figure 1 to Figure 2 In the first embodiment shown, a latch position 411 is further provided at one end of the driving slot 41 close to the transmission assembly 20. When the driving shaft 112 moves to the latch position 411, the hinge assembly 10 is separated from the transmission assembly 20 and is in an inverted state.

[0045] Specifically, when the drive shaft 112 moves to the end away from the bayonet position 411, the hinge assembly 10 and the transmission assembly 20 are closed and in the recovery state. The bayonet position 411 plays a limiting role to prevent the drive shaft 112 from sliding along the drive groove 41. In other words, the bayonet position 411 is precisely set at a predetermined position of the drive groove 41, and its shape and size are carefully designed to ensure perfect matching with the drive shaft 112. When the transmission assembly 20 is pushed or pulled, the driving rocker arm 40 rotates accordingly, driving the drive groove 41 and the drive shaft 112 therein to move. When the drive shaft 112 moves to the bayonet position 411, due to the limiting effect of the bayonet position 411, the drive shaft 112 cannot continue to slide along the drive groove 41. At this time, the hinge assembly 10 is separated from the transmission assembly 20, and the door and window enter the inward tilt state. On the contrary, when the door and window need to return to the recovery state, the transmission assembly 20 is pushed or pulled in the opposite direction, and the driving rocker arm 40 rotates and drives the drive groove 41 to move in the opposite direction. At this time, the drive shaft 112 gradually slides out from the bayonet position 411 and moves along the drive slot 41 to the end away from the bayonet position 411. When the drive shaft 112 moves to this end, the hinge assembly 10 and the transmission assembly 20 close together, and the door and window return to the closed state.

[0046] More specifically, the design of the bayonet position 411 enables the drive shaft 112 to accurately stay at a predetermined position during the sliding process, thereby achieving accurate separation and closing between the hinge assembly 10 and the transmission assembly 20. This precise limiting function is of great significance for improving the reliability and stability of the inward tilting and recovery actions of doors and windows. In addition, due to the limiting effect of the bayonet position 411, the drive shaft 112 will not exceed the predetermined range during the sliding process, thereby avoiding the risk of damage to doors and windows or personal injury caused by misoperation or external interference. This enhanced safety provides users with a more secure use experience. In addition, through the matching design of the bayonet position 411 and the drive shaft 112, efficient transmission between the transmission assembly 20 and the hinge assembly 10 is achieved. This design reduces energy loss and friction resistance during the transmission process and improves the response speed and accuracy of the action. In addition, the user does not need to perform complex operations or judgments, and can simply push or pull the transmission assembly 20 to switch the inward tilting and recovery states of the doors and windows. This simplified operation process improves the user's convenience and satisfaction.

[0047] See also Figure 3 to Figure 4 In the second embodiment shown, the hinge assembly 10 is provided with a driving slot 41 , and the driving rocker arm 40 is provided with a driving shaft 112 corresponding to the driving slot 41 , and the driving shaft 112 is slidably connected to the driving slot 41 .

[0048] Specifically, when the transmission assembly 20 is pushed or pulled, it links with the driving rocker arm 40 to make the driving shaft 112 slide in the driving groove 41. This sliding action not only realizes the power transmission between the transmission assembly 20 and the hinge assembly 10, but also ensures the stability and reliability of the doors and windows during the inward tilting and recovery process.

[0049] More specifically, through the sliding connection between the driving groove 41 and the driving shaft 112, efficient transmission between the driving rocker arm 40 and the hinge assembly 10 is achieved. This design reduces energy loss and friction resistance in the transmission process, improves the response speed and accuracy of the action, and enables the doors and windows to quickly and accurately switch to the inward tilt or recovery state. In addition, compared with the traditional complex transmission mechanism, the sliding connection between the driving groove 41 and the driving shaft 112 realizes the simplification and optimization of the structure, which not only reduces the manufacturing cost, but also improves the overall performance and reliability of the product, making the doors and windows more beautiful and durable. In addition, the matching design of the driving groove 41 and the driving shaft 112 helps to reduce the shaking and unstable factors in the transmission process. This enhanced stability is of great significance for improving the durability and service life of the doors and windows, and also provides users with a safer and more reliable use experience. In addition, since the design of the driving groove 41 and the driving shaft 112 has certain versatility and flexibility, it can adapt to different types of door and window systems and installation environments. This enhanced adaptability provides more choices and customization space for architectural designers and users, making the design of doors and windows more diversified and personalized.

[0050] See also Figure 3 to Figure 4 In the second embodiment shown, a latch position 411 is further provided at one end of the driving groove 41 close to the sliding member 111 . When the driving shaft 112 moves to the latch position 411 , the hinge assembly 10 is separated from the transmission assembly 20 and is in an inverted state.

[0051] Specifically, when the drive shaft 112 moves to the end away from the bayonet position 411, the hinge assembly 10 and the transmission assembly 20 are closed and in a retracted state, and the bayonet position 411 plays a limiting role to prevent the drive shaft 112 from sliding along the drive groove 41. In other words, when the transmission assembly 20 is pushed or pulled, it makes the drive shaft 112 slide in the drive groove 41 through linkage with the driving rocker arm 40. When the drive shaft 112 moves to the bayonet position 411, due to the limiting effect of the bayonet position 411, the drive shaft 112 cannot continue to slide along the drive groove 41. At this time, the hinge assembly 10 is separated from the transmission assembly 20, and the door and window enter the inward tilt state. On the contrary, when the door and window need to return to the retracted state, the transmission assembly 20 is pushed or pulled in the opposite direction, the drive shaft 112 gradually slides out from the bayonet position 411, and moves along the drive groove 41 to the end away from the bayonet position 411. When the drive shaft 112 moves to this end, the hinge assembly 10 and the transmission assembly 20 are closed again, and the door and window return to the closed state.

[0052] More specifically, the design of the bayonet position 411 enables the drive shaft 112 to accurately stay at the predetermined position during the sliding process, thereby achieving accurate separation and closing between the hinge assembly 10 and the transmission assembly 20. This precise limiting function is of great significance for improving the reliability and stability of the door and window tilting and recovery actions, and avoiding the risk of door and window damage or personal injury caused by misoperation or external interference. In addition, through the matching design of the bayonet position 411 and the drive shaft 112, efficient transmission between the transmission assembly 20 and the hinge assembly 10 is achieved. This design reduces energy loss and friction resistance during the transmission process, improves the response speed and accuracy of the action, and enables the door and window to quickly and accurately switch to the tilting or recovery state. In addition, the limiting effect of the bayonet position 411 not only ensures the accuracy of the door and window tilting and recovery actions, but also improves the safety of the product; since the drive shaft 112 will not exceed the predetermined range during the sliding process, the risk of door and window damage or personal injury caused by excessive movement is avoided. In addition, the user does not need to perform complicated operations or judgments, but only needs to simply push or pull the transmission assembly 20 to switch the inward folding and retracting states of the doors and windows. This simplified operation process improves the user's convenience and satisfaction.

[0053] See also Figures 5 and 6 As shown, in one embodiment, the driving slot 41 and the driving shaft 112 are both located at an eccentric position along the center line of the length direction of the hinge assembly 10 .

[0054] Specifically, by setting the drive slot 41 and the drive shaft 112 at an eccentric position, the driving force required for the inward tilt can be reduced by using the principle of mechanics. This design makes the sliding of the drive shaft 112 in the drive slot 41 smoother during the inward tilt of the doors and windows, and the required external force is smaller, thereby improving the convenience of use and user experience of the product. In addition, the design of the eccentric position also helps to improve the stability of the doors and windows during the inward tilting process; because the positions of the drive shaft 112 and the drive slot 41 have been carefully calculated and optimized, they can provide better mechanical balance during the inward tilting process, reduce shaking and unstable factors, thereby improving the durability and safety of the product. In addition, setting the drive slot 41 and the drive shaft 112 at an eccentric position can also optimize the spatial layout of the product. This design makes the structure of the doors and windows more compact, reduces unnecessary space occupation, and provides users with a more spacious and comfortable use environment. In addition, since the design of this eccentric position has certain versatility and flexibility, it can adapt to different types of door and window systems and installation environments. This enhanced adaptability provides more choices and customization space for architectural designers and users, making the design of doors and windows more diversified and personalized.

[0055] See also Figures 1 to 6As shown, in one embodiment, the transmission assembly 20 includes a driving rod 21 and a latch member 22, the driving rod 21 is slidably connected to the bottom of the base 30, the driving rod 21 is connected to the latch member 22 and the driving rocker arm 40 through a transmission shaft 23, and a locking protrusion 221 is provided at one end of the latch member 22 away from the driving rod 21, and the hinge assembly 10 is provided with a lock seat 121, and a lock groove (not shown in the figure) is provided on the lock seat 121 for inserting the locking protrusion 221.

[0056] Specifically, when the hinge assembly 10 and the transmission assembly 20 are closed, the transmission assembly 20 continues to move toward the end close to the short rocker arm 50, so that the locking protrusion 221 is inserted into the locking groove to play a locking role. In other words, the driving rod 21 is designed to be a structure that can slide along the bottom of the base 30. This sliding connection allows the driving rod 21 to move smoothly when it is subjected to external force, thereby driving the movement of the entire transmission assembly 20. The driving rod 21 is connected to the latch member 22 and the driving rocker arm 40 through the transmission shaft 23. This connection method ensures that the latch member 22 and the driving rocker arm 40 can move synchronously with the movement of the driving rod 21. When the transmission assembly 20 slides along the base 30 under the action of the driving force and drives the driving rod 21 and the latch member 22 to move, the locking protrusion 221 of the latch member 22 will gradually approach the lock seat 121 of the hinge assembly 10. When the hinge assembly 10 and the transmission assembly 20 are completely closed, the transmission assembly 20 will continue to move toward one end close to the short rocker arm 50 (i.e. continue to slide a certain distance), and at this time the locking protrusion 221 will be accurately inserted into the lock groove, thereby realizing the locking function of the door and window.

[0057] More specifically, by designing the locking protrusion 221 of the latch member 22 and the lock seat 121 and lock slot of the hinge assembly 10, the doors and windows are reliably locked in the retracted state. This locking method is not only simple in structure and easy to implement, but also has a stable and reliable locking effect, effectively preventing the risk of accidental opening of the doors and windows due to external forces. In addition, the driving rod 21, the latch member 22 and the driving rocker arm 40 are connected through the transmission shaft 23 to form a compact and efficient transmission system. This design not only reduces the energy loss in the transmission process, but also improves the response speed and accuracy of the action, so that the doors and windows can quickly and accurately realize the locking function. In addition, due to the mutual cooperation of the locking protrusion 221 and the lock slot, the doors and windows have stronger wind pressure resistance and anti-theft performance in the locked state. This design not only improves the safety of the product, but also provides users with a more secure and comfortable use experience.

[0058] See also Figures 1 to 6 As shown, in one embodiment, the hinge assembly 10 includes a long rocker arm 11 and a hinge end 12 , the sliding member 111 is disposed at one end of the long rocker arm 11 away from the hinge end 12 , and the lock seat 121 is disposed at the hinge end 12 .

[0059] Specifically, the drive shaft 112 or the drive slot 41 is disposed in the middle section of the long rocker arm 11. This position is selected to balance the transmission efficiency and the compactness of the structure. The drive shaft 112 or the drive slot 41 is in the middle section so that the transmission assembly 20 can maintain a good mechanical balance when driving the door and window sash to tilt and retract, while avoiding unnecessary interference with other parts of the long rocker arm 11.

[0060] More specifically, by arranging the sliding member 111 at the end of the long rocker arm 11 away from the hinge end 12, and arranging the drive shaft 112 or the drive slot 41 at the middle section of the long rocker arm 11, the connection mode and transmission path between the transmission assembly 20 and the hinge assembly 10 are optimized. This design reduces the energy loss and friction resistance in the transmission process, and improves the response speed and accuracy of the action. In addition, the carefully designed positions of the sliding member 111, the lock seat 121, and the drive shaft 112 or the drive slot 41 make the structure of the hinge assembly 10 more compact, which not only reduces the volume and weight of the product, but also improves its overall performance and reliability. In addition, the lock seat 121 is arranged on the hinge end 12, opposite to the long rocker arm 11, so that the locking protrusion 221 of the latch member 22 can be accurately inserted therein. This design ensures that the door and window can be reliably locked in the retracted state to prevent the risk of accidental opening due to external force. In addition, the drive shaft 112 or the drive groove 41 is in the middle position so that the transmission assembly 20 can maintain a good mechanical balance when driving the door and window sashes to tilt inward and retract. This balance reduces the shaking and instability of the door and window sashes during the movement, and improves the durability and safety of the product.

[0061] In one embodiment, the number of the driving shafts 112 is two, and the two driving shafts 112 are arranged in parallel.

[0062] Specifically, the two driving shafts 112 are arranged in parallel, which can improve the driving stability.

[0063] The hinge end 12 adopts the existing public technology, which will not be elaborated in detail here.

[0064] The invention also discloses a door and window, comprising the automatic inward-tilting structure of the door and window as described above.

[0065] Specifically, by designing the sliding connection of the transmission assembly 20 on the base 30, and the ingenious cooperation of the driving rocker arm 40 and the short rocker arm 50 with the transmission assembly 20 and the hinge assembly 10, the automatic inward tilting and retraction functions of the doors and windows are realized. Users do not need to laboriously rotate the handle and pull the doors and windows like traditional manually inward tilting doors and windows, nor do they need to worry about the problem of insufficient driving force in the electric opening mode. This innovative design greatly simplifies the operation process and improves the user experience. It is particularly friendly and convenient for people with limited strength. In addition, through the opening and closing of the driving rocker arm 40 and the short rocker arm 50, the force requirements during the driving process are effectively dispersed. When the transmission assembly 20 is driven towards the end away from the short rocker arm 50, the sliding of the sliding member 111 on the base 30 causes the hinge assembly 10 to separate from the transmission assembly 20 and enter the inward tilting state. The driving force required for this process is reasonably dispersed, reducing the requirements for the motor or manual operation force. On the contrary, during the retraction process, the closing action of the driving rocker arm 40 and the short rocker arm 50 assists the transmission assembly 20 to pull the hinge assembly 10 back to its original position, also reducing the force consumption. In addition, since the automatic inward tilting and retraction of the doors and windows are realized, users do not need to directly contact the moving parts of the doors and windows, thereby reducing the safety risks during the operation process. Especially for children, this design can effectively prevent accidental injuries caused by misoperation.

[0066] The above embodiments are preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution of the present invention is within the protection scope of the present invention.

Claims

1. An automatic inward-tilting structure for doors and windows, characterized in that: include: A hinge assembly, a transmission assembly, a base, a driving rocker arm and a short rocker arm, wherein the transmission assembly is drivingly connected to the base, one end of the driving rocker arm is rotatably connected to the transmission assembly, and the other end is drivingly connected to the hinge assembly, one end of the short rocker arm is rotatably connected to the base, and the other end is rotatably connected to the hinge assembly; The hinge assembly is connected with a sliding member, the sliding member is slidably connected to the base, the driving rocker arm is provided with a driving groove, the middle section of the hinge assembly is provided with a driving shaft corresponding to the driving groove, and the driving shaft is slidably connected to the driving groove; Or the hinge assembly is provided with a driving groove, the driving rocker arm is provided with a driving shaft corresponding to the driving groove, and the driving shaft is slidably connected to the driving groove.

2. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The transmission assembly is transmission-connected to the lower side of the base, a long groove is provided on the base, and the sliding member is slidably connected to the long groove.

3. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The driving groove is also provided with a bayonet position at one end close to the transmission assembly. When the driving shaft moves to the bayonet position, the hinge assembly is separated from the transmission assembly and is in an inverted state.

4. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The driving groove is also provided with a bayonet position at one end close to the sliding member. When the driving shaft moves to the bayonet position, the hinge assembly is separated from the transmission assembly and is in an inverted state.

5. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The driving slot and the driving shaft are both located at eccentric positions along a center line in a length direction of the hinge assembly.

6. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The transmission assembly includes a driving rod and a latch member, the driving rod is slidably connected to the bottom of the base, the driving rod is connected to the latch member and the driving rocker arm through a transmission shaft, a locking protrusion is provided at one end of the latch member away from the driving rod, the hinge assembly is provided with a lock seat, and a lock groove is provided on the lock seat for the locking protrusion to be inserted.

7. The automatic inward-tilting structure for doors and windows according to claim 6, characterized in that: The hinge assembly comprises a long rocker arm and a hinge end, the sliding member is arranged at one end of the long rocker arm away from the hinge end, and the lock seat is arranged at the hinge end.

8. The automatic inward-tilting structure for doors and windows according to claim 1, characterized in that: The number of the driving shafts is two, and the two driving shafts are arranged in parallel.

9. A door and window, characterized in that: It comprises the automatic inward-tilting structure for doors and windows as described in any one of claims 1-8.

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