A lift and slide door and window system

Abstract

The application discloses a lifting sliding door and window system, which comprises a door leaf body, a handle, a transmission component, a lifting sliding pulley device and a multi-point locking structure. The transmission component and the multi-point locking structure are arranged in transmission grooves on both sides of the door leaf body. The lifting sliding pulley device is arranged at the bottom of the door leaf body. When the handle is rotated, the transmission component, the lifting sliding pulley device and the multi-point locking structure can be sequentially driven to move. The transmission component comprises a first transmission bar. When the first transmission bar moves to the end of the stroke, the first transmission bar can be positioned, so that the pulley lifting state can be ensured without increasing the positioning force of the handle. The multi-point locking structure can lock the driven side of the door leaf at multiple points, thereby greatly improving the waterproofness and the sealing performance of the door leaf body when the door leaf body is locked. A first inclined circular arc surface is formed on the front lifting seat of the lifting sliding pulley device, so that the lifting distance can be effectively lengthened, the lifting slope can be reduced, the user can operate more labor-savingly, and the lifting movement is more smooth.

Description

Technical Field

[0001] This invention relates to the field of door and window technology, and specifically to a lift-and-slide door and window system. Background Technology

[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.

[0003] The use of lift-and-slide doors and windows in modern residences is increasingly common, and users desire a wider field of vision for aesthetic reasons. To achieve this, the visible surface of the sash frame is required to be as narrow as possible. To meet market demands, smaller pulley assemblies need to be designed, while the load-bearing capacity of the entire pulley assembly must be comparable to that of the larger ones. Due to the diverse applications leading to varying door and window sash sizes and the widespread use of multi-layered glass, sashes are generally quite heavy, with significant weight variations, making the handle operation unstable. If the door sash is heavy, lifting it requires considerable force to operate the handle. Therefore, in addition to making the pulleys smaller, a more effort-efficient pulley lifting structure is needed. Furthermore, when the sash is heavy, if the transmission mechanism cannot be positioned, the handle's positioning force must be increased to maintain the pulley's lifting state, making the overall structure and user experience unstable. Additionally, current users demand higher levels of waterproofing and sealing for lift-and-slide doors and windows, but existing lift-and-slide doors and windows on the market can only lock on one side, making waterproofing and sealing dependent on sealing strips and manufacturing precision, with extremely limited achievable waterproofing and sealing performance. Therefore, designing a structure that can achieve multi-sided locking of the fan is a simpler, more efficient, more controllable, and more stable solution for improving the waterproofness and sealing performance of current push-pull products on the market. Summary of the Invention

[0004] In order to overcome the defects mentioned above in the prior art, the present invention provides a lifting and sliding door and window system, which can solve the problems mentioned in the background art, such as the difficulty and instability of the handle operation when lifting the door leaf, and the poor waterproof and sealing performance when the door leaf is locked.

[0005] The technical solution adopted by this invention to solve its problem is: A lift-up sliding door and window system, comprising: Door body; The handle is rotatably located at the front end of one side of the door body; A transmission assembly is disposed in a transmission groove on one side of the door body and includes a push-pull rod, a first transmission bar, and a transmission panel. The push-pull rod is driven and engaged with the handle. The first transmission bar is engaged with the push-pull rod, and its engagement surface is an inclined plane. The first transmission bar slides within the transmission panel. When the handle is rotated to move the first transmission bar to the end of its stroke, under the action of a reverse thrust, the first transmission bar moves relative to the push-pull rod along the inclined plane and abuts against the transmission panel to achieve frictional positioning. The lifting and pushing pulley device is located at the bottom of the door body and includes a front pulley mechanism and a rear pulley mechanism arranged at left and right intervals. One end of the front pulley mechanism is driven by the first transmission bar, and the other end is driven by the rear pulley mechanism. The multi-point locking structure is located in the transmission groove on the other side of the door body and includes a first hook lock assembly and a second hook lock assembly arranged at vertical intervals. One end of the second hook lock assembly is driven to engage with the rear pulley mechanism, and the other end is driven to engage with the first hook lock assembly. When the handle is rotated, the first hook lock assembly and the second hook lock assembly can be driven to engage with the first lock seat and the second lock seat on the door frame respectively to achieve multi-point locking. The front pulley mechanism includes a front lifting seat and a front lifting pulley assembly. The front lifting pulley assembly includes a front support, a front pulley, and a front lifting wheel. Both the front pulley and the front lifting wheel are rotatably mounted on the front support. The front lifting seat has a first oblique arc surface, and the front lifting wheel is rolled on the first oblique arc surface. When the handle is rotated to move the front support, the front lifting wheel can be driven to roll on the first oblique arc surface. When the front lifting wheel rolls from the highest point to the lowest point of the first oblique arc surface, the door body completes the lifting action.

[0006] As an optional implementation, the front lifting pulley assembly further includes a front connecting rod traction structure, which includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably mounted on the front lifting seat, and the other end is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the front lifting wheel. When the handle is rotated to drive the front lifting wheel to roll from the highest point to the lowest point of the first inclined arc surface, the door body completes the lifting action. At this time, the first link and the second link are in a folded state and their lowest points do not protrude from the front lifting wheel.

[0007] As an optional implementation, the rear pulley mechanism includes a rear lifting seat and a rear lifting pulley assembly. The rear lifting pulley assembly includes a rear support, a rear pulley, and a rear lifting wheel. The rear support and the front support are connected by a connecting rod. Both the rear pulley and the rear lifting wheel are rotatably disposed within the rear support. The rear lifting seat has a second inclined arc surface, and the rear lifting wheel is rolled on the second inclined arc surface. When the handle is rotated to move the front support, the connecting rod can move the rear support, which in turn causes the rear lifting wheel to roll along the second oblique arc surface. When the rear lifting wheel rolls from the highest point to the lowest point of the second oblique arc surface, the door body completes the lifting action.

[0008] As an optional implementation, the rear lifting pulley assembly further includes a rear link traction structure, which includes a third link and a fourth link. One end of the third link is rotatably mounted on the rear lifting seat, and the other end is rotatably connected to one end of the fourth link. The other end of the fourth link is rotatably connected to the rear lifting wheel. When the handle is rotated to drive the rear lifting wheel to roll from the highest point to the lowest point of the second inclined arc surface, the door body completes the lifting action. At this time, the third link and the fourth link are in a folded state and their lowest points do not protrude from the rear lifting wheel.

[0009] As an optional implementation, it also includes a push-pull component, a corner component, and a connecting rod, wherein: The push-pull component is slidably mounted on the front lifting seat and is connected to the first transmission bar. The first end of the corner piece is rotatably mounted on the front lifting seat, the second end of the corner piece is rotatably connected to the push-pull piece, and the third end of the corner piece is rotatably connected to one end of the connecting rod. The other end of the connecting rod is connected to one end of the front bracket; When the handle is rotated, the push-pull member can be driven to slide on the front lifting seat through the first transmission bar, and then the front bracket can be moved through the transmission of the corner member and the connecting rod.

[0010] As an optional implementation, the first transmission bar and the push-pull rod are connected by a snap-fit ​​structure. The snap-fit ​​structure includes a snap-fit ​​block and a snap-fit ​​hole, one of which is disposed on the first transmission bar and the other is disposed on the push-pull rod. The inclined surface is formed on the card block or the card hole.

[0011] As an optional implementation, the transmission assembly further includes a housing fixedly disposed within the transmission panel. The housing includes a first transmission housing side plate, a second transmission housing side plate, and a connecting post. The two ends of the connecting post pass through the first transmission housing side plate and the second transmission housing side plate respectively to connect the two and align them with a left-right gap. It also includes a square bushing that is rotatably clamped between the first transmission box side plate and the second transmission box side plate. The push-pull rod is located between the first transmission box side plate and the second transmission box side plate and is connected to the square bushing. The square bushing has a square shaft hole that is inserted and engaged with the square shaft of the handle to realize the transmission connection. When the handle is rotated, the square bushing can be rotated, thereby driving the push-pull rod to perform reciprocating linear motion.

[0012] As an optional implementation, the first hook lock assembly includes a hook seat slidably disposed in the transmission groove and a first hook mounted on the hook seat; the second hook lock assembly includes a lock frame fixed to the door leaf body frame and a second hook slidably disposed on the lock frame and located in the transmission groove; the hook seat and the second hook are connected by a second transmission bar. The second locking hook is connected to the rear pulley mechanism. When the handle is rotated to move the rear pulley mechanism, the second locking hook and the first locking hook on the locking hook seat can slide synchronously, and the first locking hook and the second locking hook can respectively engage with the first locking seat and the second locking seat on the door frame to achieve multi-point locking.

[0013] As an optional implementation, the multi-point locking structure further includes a top lock assembly disposed in the transmission groove at the top corner of the second side of the door body. The top lock assembly includes an upper lock seat fixed to the transmission groove at the top corner of the second side of the door body, a spring piece slidably passing through the upper lock seat, an upper top plate seat fixed to one end of the spring piece and horizontally slidable in the upper lock seat, and a lower pull rod fixed to the other end of the spring piece and vertically slidable in the upper lock seat. The lower pull rod is connected to the lock hook seat through a third transmission bar. The upper top plate seat is provided with a rotatable upper top plate, and the upper lock seat is provided with a guide slope. The bottom surface of the upper top plate abuts against the guide slope. When the lock hook seat is slid, the pull rod can be driven to move vertically, and the upper top plate seat can be driven to move horizontally through the spring piece, thereby driving the upper top plate to slide along the guide slope and tilt up or down. The upper top plate is used to abut against the upper rail of the door frame to achieve locking.

[0014] As an optional implementation, the multi-point locking structure further includes a pull-down assembly disposed in the transmission groove at the bottom corner of the second side of the door body. The pull-down assembly includes a pull-down outer box fixed to the transmission groove at the bottom corner of the second side of the door body, a push-down seat horizontally slidable in the pull-down outer box, and a pull-down member vertically slidable in the pull-down outer box. The push-down seat has an inclined groove, and the pull-down member has a protrusion that engages with the inclined groove for sliding cooperation. The push-down seat is used to abut against the rear support to achieve a transmission cooperation. The pull-down member is connected to the second lock hook through a fourth transmission bar. The push-down seat abuts against the rear support to achieve a transmission connection. When the rear pulley mechanism is moved, it can abut against and drive the lower push seat to move horizontally closer to the pull-down member, and through the sliding engagement of the inclined groove and the protrusion, drive the pull-down member to move vertically downward, thereby driving the second locking hook to slide.

[0015] In summary, the lifting and sliding door and window system provided by the present invention has the following beneficial effects: (I) The lifting and sliding door and window system of the present invention, firstly, in the transmission assembly, the push-pull rod and the first transmission bar are engaged by a bevel. When the push-pull rod moves to the end of its stroke and is subjected to a reverse thrust, the first transmission bar will automatically shift along the bevel and press against the inner wall of the transmission panel to generate friction, thereby achieving automatic locking of the first transmission bar at the end position. Therefore, it is not necessary to increase the handle positioning force to ensure the pulley lifting state. Moreover, when the reverse thrust is greater, the friction between the first transmission bar and the inner wall of the transmission panel is greater, the positioning force is stronger, and the locking is more reliable. Secondly, by setting a multi-point lock on the other side of the door body... The closed structure allows the driven side of the door panel to be pulled towards the door frame by multiple locking points when the main body of the door panel is locked. This causes the rubber strip to be compressed evenly, changing the reliance on the rubber strip for adhesion to multi-point forced compression. This improves the waterproofness and sealing of the main body of the door panel, while reducing the dependence on processing precision and rubber strip materials, thus saving costs. Finally, in the lifting and pushing pulley device, the first inclined arc surface is opened on the front lifting seat, and the front lifting wheel rolls on the first inclined arc surface to achieve lifting and lowering. The advantage of this design is that setting the first inclined arc surface can effectively lengthen the lifting distance, thereby reducing the lifting slope, making the operation easier for the user and the lifting movement smoother.

[0016] (ii) The lifting and sliding door and window system of the present invention uses a front connecting rod traction structure in the front pulley mechanism to pull the front lifting wheel to roll on the front lifting seat. When the front lifting wheel rolls to the lowest point of the first inclined arc surface, the front connecting rod traction structure is in a folded state and its lowest point does not protrude from the front lifting wheel. Therefore, it will not interfere with the lower rail. Thus, the diameter of the front pulley can be made smaller, thereby making the overall size of the front pulley mechanism smaller, which can then be adapted to door and window profiles with extremely narrow frames, meeting the needs of modern buildings for minimalist and beautiful design.

[0017] (iii) In the lifting and sliding door and window system of the present invention, the diameter of the front lifting wheel can be designed to be relatively large, thereby increasing the lever arm and reducing the force required to lift the door leaf. At the same time, since the load-bearing method of the front lifting wheel is to transfer the weight to the first inclined arc surface, the lifting angle can be reduced by extending the length of the first inclined arc surface, thereby reducing the operating force required for lifting, and thus making it particularly suitable for lifting and sliding operations of heavy door leaves. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the lifting sliding door and window system of the present invention; Figure 2 This is an exploded view of the lifting sliding door and window system of the present invention; Figure 3 This is a schematic diagram of the lifting and sliding pulley device in the lifting and sliding door and window system of the present invention; Figure 4 This is a schematic diagram of the front pulley mechanism in the lifting push-pull pulley device of the present invention; Figure 5 This is an exploded view of the front pulley mechanism in the lifting push-pull pulley device of the present invention; Figure 6 This is a schematic diagram of the front lifting seat in the front pulley mechanism of the present invention; Figure 7 This is a cross-sectional schematic diagram of the front pulley mechanism of the present invention in the retracted state; Figure 8 This is a cross-sectional schematic diagram of the front pulley mechanism of the present invention in the lifting state; Figure 9 This is a schematic diagram of the rear pulley mechanism in the lifting push-pull pulley device of the present invention; Figure 10 This is an exploded view of the rear pulley mechanism in the lifting push-pull pulley device of the present invention; Figure 11 This is a schematic diagram of the structure of the rear lifting seat in the rear pulley mechanism of the present invention; Figure 12 This is a cross-sectional schematic diagram of the rear pulley mechanism of the present invention in the retracted state; Figure 13This is a cross-sectional schematic diagram of the rear pulley mechanism of the present invention in the lifting state; Figure 14 This is an exploded view of the transmission component in the sliding door and window system of the present invention. Figure 15 This is a schematic diagram of the transmission component in the lifting sliding door and window system of the present invention; Figure 16 This is an exploded view of the transmission box assembly in the transmission assembly of the present invention; Figure 17 This is a schematic diagram of the transmission box assembly in the transmission assembly of the present invention; Figure 18 This is a schematic diagram of the structure of the square shaft sleeve in the transmission box assembly of the present invention; Figure 19 This is a cross-sectional view of the push-pull rod in the transmission box assembly of the present invention when it is extended; Figure 20 This is a cross-sectional schematic diagram of the push-pull rod in the transmission box assembly of the present invention during retraction; Figure 21 This is a schematic diagram of the first hook-lock assembly in the multi-point locking structure of the present invention; Figure 22 This is an exploded view of the first hook-lock assembly in the multi-point locking structure of the present invention; Figure 23 This is a schematic diagram of the second hook-lock assembly in the multi-point locking structure of the present invention; Figure 24 This is an exploded view of the second hook-lock assembly in the multi-point locking structure of the present invention; Figure 25 This is a cross-sectional schematic diagram of the second hook lock component in the multi-point locking structure of the present invention when it is in the unlocked state; Figure 26 This is a cross-sectional schematic diagram of the second hook-lock component in the multi-point locking structure of the present invention when it is in the locked state; Figure 27 This is a schematic diagram of the locking assembly in the multi-point locking structure of the present invention; Figure 28 This is an exploded view of the locking assembly in the multi-point locking structure of the present invention; Figure 29 This is a schematic diagram of the locking assembly in the multi-point locking structure of the present invention from another perspective; Figure 30 This is a cross-sectional schematic diagram of the locking assembly in the multi-point locking structure of the present invention when it is in the unlocked state. Figure 31 This is a cross-sectional schematic diagram of the locking assembly in the multi-point locking structure of the present invention when it is in the locked state. Figure 32 This is a schematic diagram of the pull-down component in the multi-point locking structure of the present invention; Figure 33 This is an exploded view of the pull-down component in the multi-point locking structure of the present invention; Figure 34 This is a schematic diagram of the structure of the pull-down component of the present invention after the pull-down outer box is hidden; Figure 35 This is a cross-sectional schematic diagram of the pull-down component of the present invention in its extended state; Figure 36 This is a cross-sectional schematic diagram of the pull-down component of the present invention in a compressed state; Figure 37 This is a schematic diagram of the structure of the sliding door and window system of the present invention when it is in the unlocked state; Figure 38 This is a schematic diagram of the structure of the sliding door and window system of the present invention when it is locked.

[0019] The meanings of the reference numerals in the attached figures are as follows: 1. Door leaf body; 2. Lower slide rail; 3. Lifting and pushing pulley device; 31. Front pulley mechanism; 311. Front lifting seat; 3111. Front seat body; 3112. Front support leg; 3113. First oblique arc surface; 312. Front lifting pulley assembly; 3121. Front pulley fixing plate; 3122. Front pulley; 3123. Front lifting wheel; 3124. First connecting rod; 3125. Second connecting rod; 31251. First limiting post; 3126. Front upper lifting pin; 3127. Front middle lifting pin; 3128. Front lower lifting pin; 3129. Front pulley pin; 313. Push-pull component; 314. Corner component; 315. Connecting rod; 316. Front connector; 3171. Corner pin; 3172. Push-pull rod pin; 3173. 3174. Pull rod pin; 32. Rear pulley mechanism; 321. Rear lifting seat; 3211. Rear seat body; 3212. Rear support leg; 3213. Second inclined arc surface; 322. Rear lifting pulley assembly; 3221. Rear pulley fixing plate; 3222. Rear pulley; 3223. Rear lifting wheel; 3224. Third connecting rod; 3225. Fourth connecting rod; 32251. Second limiting post; 3226. Rear upper lifting pin; 3227. Rear middle lifting pin; 3228. Rear lower lifting pin; 3229. Rear pulley pin; 323. Rear connector; 33. Connecting rod; 4. Handle; 5. Transmission assembly; 51. Transmission box assembly; 511. Push-pull rod; 5111. Locking block; 51111. Inclined surface; 511 2. Second mounting hole; 512. First transmission box side plate; 5121. First round hole; 513. Second transmission box side plate; 5131. Second round hole; 514. Connecting post; 515. Square bushing; 5151. Square shaft hole; 5152. First mounting hole; 5153. First boss; 5154. Second boss; 516. Bushing washer; 517. Pin; 518. Limiting boss; 52. First transmission bar; 521. Locking hole; 53. Transmission panel; 531. Square groove; 54. Connecting screw; 55. Connecting rivet; 6. Multi-point locking structure; 61. First hook lock assembly; 611. Lock hook seat; 612. First lock hook; 6121. Guide hole; 613. Eccentric adjusting pin; 6131. ​​Main shaft; 6132. 614. Eccentric shaft; 615. Fixing screw; 62. Silencing component; 62. Second hook lock assembly; 621. Lock frame; 6211. Protruding strip; 622. Second lock hook; 6221. Slot; 623. Lock hook spring; 65. Second transmission bar; 63. Top lock assembly; 631. Upper lock seat; 6311. Guide slope; 632. Spring; 633. Upper top plate seat; 634. Pull-down rod; 635. Upper top plate; 636. Top plate pin; 637. Fastener; 64. Pull-down assembly; 641. Pull-down outer box; 642. Push-down seat; 6421. Inclined groove; 643. Pull-down component; 6431. Protrusion; 644. Push-down spring; 645. Pull-down spring; 646. Pull-down stop; 65. Second transmission bar; 66. Third transmission bar;67. Fourth transmission bar; 7. Door frame; 8. First lock seat; 9. Second lock seat. Detailed Implementation

[0020] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] See Figure 1-38 This invention provides a lift-and-slide door and window system, including a door leaf body 1, a handle 4 rotatably disposed on one front end of the door leaf body 1, a lower slide rail 2 disposed below the door leaf body 1, and a lift-and-slide pulley device 3 disposed at the bottom of the door leaf body 1 and slidably disposed on the lower slide rail 2. When the user holds the handle 4 and pushes the door leaf body 1, the door leaf body 1 can be moved left and right by sliding the lift-and-slide pulley device 3 on the lower slide rail 2; when the user rotates the handle 4, the lift-and-slide pulley device 3 can be activated to lift or lower the door leaf body 1.

[0024] In addition, it also includes a transmission assembly 5 and a multi-point locking structure 6, which are respectively located in the transmission grooves on the left and right sides of the door body 1. The handle 4 is driven by the transmission assembly 5 and the lifting and pushing pulley device 3, which is driven by the multi-point locking structure 6. Therefore, when the handle 4 is rotated, the transmission assembly 5, the lifting and pushing pulley device 3 and the multi-point locking structure 6 can be driven to move in sequence, thereby realizing the lifting or lowering of the door body 1 and the locking or unlocking of the door body 1.

[0025] See Figure 4-8Specifically, the lifting and pushing pulley device 3 includes a front pulley mechanism 31, which includes a front lifting seat 311 and a front lifting pulley assembly 312. The front lifting seat 311 is installed at the bottom of the door body 1. The front lifting pulley assembly 312 includes a front support, a front pulley 3122, and a front lifting wheel 3123. The front pulley 3122 and the front lifting wheel 3123 are rotatably disposed within the front support. The front pulley 3122 is slidably disposed on the lower rail 2, and the front lifting wheel 3123 is rolled on the front lifting seat 311. The door body 1 has a first inclined arc surface 3113, and the front lifting wheel 3123 is rolled on the first inclined arc surface 3113. When the handle 4 is rotated to drive the front support to move left and right along the extension direction of the lower slide rail 2, the front lifting wheel 3123 can be driven to roll along the first inclined arc surface 3113. When the front lifting wheel 3123 rolls from the highest point to the lowest point of the first inclined arc surface 3113, the door body 1 completes the lifting action. When the front lifting wheel 3123 rolls from the lowest point to the highest point of the first inclined arc surface 3113, the door body 1 completes the sinking action.

[0026] Therefore, by rotating the handle 4 to drive the front lifting wheel 3123 to roll on the first inclined arc surface 3113 of the front lifting seat 311 to achieve lifting and lowering, which is not sliding friction, the frictional resistance can be greatly reduced and the operating feel can be improved. Secondly, by opening the first inclined arc surface 3113 on the front lifting seat 311 and letting the front lifting wheel 3123 roll on the first inclined arc surface 3113 to achieve lifting and lowering, the advantage of this design is that setting the first inclined arc surface 3113 can effectively lengthen the lifting distance, thereby reducing the lifting slope, making the user's operation more effortless and the lifting movement smoother.

[0027] It should be noted that the diameter of the front lifting wheel 3123 can be designed to be relatively large, thereby increasing the lever arm and reducing the force required to lift the door body 1. In addition, since the load-bearing method of the front lifting wheel 3123 is to transfer the weight to the first inclined arc surface 3113, the lifting angle can be reduced by extending the length of the first inclined arc surface 3113, further reducing the operating force required for lifting, and thus making it particularly suitable for lifting and pushing operations of heavy door body 1.

[0028] Furthermore, the front lifting pulley assembly 312 also includes a front link traction structure, which includes a first link 3124 and a second link 3125. One end of the first link 3124 is rotatably mounted on the front lifting seat 311, and the other end of the first link 3124 is rotatably connected to one end of the second link 3125. The other end of the second link 3125 is rotatably connected to the front lifting wheel 3123.

[0029] Thus, when the front lifting wheel 3123 rolls from the highest point of the first inclined arc surface 3113 to the lowest point of the first inclined arc surface 3113, the first link 3124 and the second link 3125 are in a folded state and their lowest points do not protrude beyond the front lifting wheel 3123. That is, the front link traction structure will not hit the lower slide rail 2 (i.e., it will not interfere with the lower slide rail 2), which allows the entire front lifting pulley assembly 312 to be made thinner and smaller, so that it can be adapted to door and window profiles with extremely narrow frames, meeting the needs of modern architecture for minimalist and beautiful design.

[0030] It should be noted that by changing the length or curvature of the first inclined arc surface 3113, the rolling stroke of the front lifting wheel 3123 can be adjusted, thereby controlling the lifting or lowering height of the door body 1. Therefore, manufacturers can flexibly adjust the lifting amount according to the sealing requirements of different door body 1 and the depth of the lower slide rail 2, greatly improving the versatility and adaptability of the product, making it suitable for various door body 1 specifications.

[0031] In this embodiment, one end of the first link 3124 is hinged to the front lift seat 311 via the front upper lift pin 3126, and the other end of the first link 3124 is hinged to one end of the second link 3125 via the front middle lift pin 3127. The other end of the second link 3125 is hinged to the front lift wheel 3123 via the front lower lift pin 3128.

[0032] Furthermore, the second link 3125 is provided with a first limiting post 31251. When the front lifting wheel 3123 is driven to roll from the lowest point to the highest point of the first inclined arc surface 3113, the door body 1 completes the sinking action. The first limiting post 31251 on the second link 3125 abuts against the first link 3124 to achieve the limiting action, thereby ensuring that the front lifting wheel 3123 always rolls along the predetermined trajectory on the first inclined arc surface 3113.

[0033] See also Figure 5 Furthermore, the front support includes two front pulley fixing plates 3121 aligned and spaced apart from each other. Both the front pulley 3122 and the front lifting wheel 3123 are rotatably clamped between the two front pulley fixing plates 3121. Specifically, the front pulley 3122 is rotatably mounted on the two front pulley fixing plates 3121 via a front pulley pin 3129, and the front lifting wheel 3123 is rotatably mounted on the two front pulley fixing plates 3121 via a front lower lifting pin 3128.

[0034] In this embodiment of the invention, two front pulleys 3122 are provided and are spaced apart on both sides of the front lifting pulley 3123; two second connecting rods 3125 and two front lifting pulleys 3123 are provided, with the two second connecting rods 3125 being located on the left and right sides of the first connecting rod 3124, and the two front lifting pulleys 3123 being located on the outer sides of the two second connecting rods 3125 respectively.

[0035] Specifically, the front lift seat 311 includes a front seat body 3111 and a front support leg 3112. The front seat body 3111 and the front support leg 3112 are arranged perpendicularly to each other. The first oblique arc surface 3113 is formed at the angle between the front seat body 3111 and the front support leg 3112.

[0036] Furthermore, the front pulley mechanism 31 also includes a push-pull member 313, a corner member 314, and a connecting rod 315. The push-pull member 313 is slidably mounted on the front lifting seat 311 and is connected to the handle 4 in a transmission manner. The first end of the corner member 314 is rotatably mounted on the front lifting seat 311, the second end of the corner member 314 is rotatably connected to the push-pull member 313, and the third end of the corner member 314 is rotatably connected to one end of the connecting rod 315. The other end of the connecting rod 315 is connected to one end of the two front pulley fixing plates 3121.

[0037] Thus, when the handle 4 is rotated to drive the push-pull member 313 to slide on the front lifting seat 311, the front bracket can be driven to move left and right through the transmission of the corner member 314 and the connecting rod 315 in sequence, and finally the front lifting wheel 3123 is driven to roll on the front lifting seat 311 along the first oblique arc surface 3113.

[0038] In this embodiment, the first end of the corner piece 314 is hinged to the front lifting seat 311 via a corner pin 3171, the second end of the corner piece 314 is hinged to the push-pull piece 313 via a push-pull rod pin 3172, and the third end of the corner piece 314 is hinged to one end of the connecting rod 315 via a pull rod pin 3173. The other end of the connecting rod 315 is connected to one end of the two front pulley fixing plates 3121 via a connecting rod pin 3174. Additionally, a front connector 316 is included, which is connected to the other end of the two front pulley fixing plates 3121.

[0039] See also Figure 9-13The lifting and pushing pulley device 3 also includes a rear pulley mechanism 32, which includes a rear lifting seat 321 and a rear lifting pulley assembly 322. The rear lifting pulley assembly 322 includes a rear support, a rear pulley 3222, and a rear lifting wheel 3223. The rear support and the front support are connected by a connecting rod 33. The rear pulley 3222 and the rear lifting wheel 3223 are rotatably mounted in the rear support. The rear pulley 3222 slides on the lower rail 2, and the rear lifting wheel 3223 rolls on the rear lifting seat 321. The rear lifting seat 321 has a second oblique arc surface 321. 3. The rear lifting wheel 3223 is rolled on the second inclined arc surface 3213. When the handle 4 is rotated to drive the front support to move left and right along the extension direction of the lower slide rail 2, the connecting rod 33 can drive the rear support to move left and right along the extension direction of the lower slide rail 2, thereby driving the rear lifting wheel 3223 to roll along the second inclined arc surface 3213. When the rear lifting wheel 3223 rolls from the highest point to the lowest point of the second inclined arc surface 3213, the door body 1 completes the lifting action. When the rear lifting wheel 3223 rolls from the lowest point to the highest point of the second inclined arc surface 3213, the door body 1 completes the sinking action.

[0040] Furthermore, the rear lifting pulley assembly 322 also includes a rear link traction structure, which includes a third link 3224 and a fourth link 3225. One end of the third link 3224 is rotatably mounted on the rear lifting seat 321, and the other end of the third link 3224 is rotatably connected to one end of the fourth link 3225. The other end of the fourth link 3225 is rotatably connected to the rear lifting wheel 3223. Thus, when the rear lifting wheel 3223 rolls to the lowest point of the second inclined arc surface 3213, the third link 3224 and the fourth link 3225 are in a folded state, and their lowest points do not protrude beyond the rear lifting wheel 3223, thereby avoiding interference with the lower rail 2.

[0041] It should be noted that the rear pulley mechanism 32 has the same effect as the front pulley mechanism 31, so it will not be described again here.

[0042] In this embodiment, one end of the third link 3224 is hinged to the rear lift seat 321 via the rear upper lift pin 3226, and the other end of the third link 3224 is hinged to one end of the fourth link 3225 via the rear middle lift pin 3227. The other end of the fourth link 3225 is hinged to the rear lift wheel 3223 via the rear lower lift pin 3228.

[0043] Furthermore, the fourth link 3225 is provided with a second limiting post 32251. When the rear lifting wheel 3223 rolls from the lowest point to the highest point of the second inclined arc surface 3213, the door body 1 completes the descent action, and the second limiting post 32251 on the fourth link 3225 abuts against the third link 3224 to achieve the limiting, thereby ensuring that it always rolls along the predetermined trajectory on the second inclined arc surface 3213.

[0044] See also Figure 10 The rear support includes two rear pulley fixing plates 3221 aligned and spaced apart from each other. The rear pulley 3222 and the rear lifting wheel 3223 are rotatably clamped between the two rear pulley fixing plates 3221. Specifically, the rear pulley 3222 is rotatably mounted on the two rear pulley fixing plates 3221 via a rear pulley pin 3229, and the rear lifting wheel 3223 is rotatably mounted on the two rear pulley fixing plates 3221 via a rear lower lifting pin 3228.

[0045] In this embodiment of the invention, two rear pulleys 3222 are provided, spaced apart on both sides of the rear lifting wheel 3223; two fourth connecting rods 3225 and two rear lifting wheels 3223 are also provided, with the two fourth connecting rods 3225 located on the left and right sides of the third connecting rod 3224, and the two rear lifting wheels 3223 located on the outer sides of the two fourth connecting rods 3225. Additionally, a rear connector 323 is included, which is connected to one end of the two rear pulley fixing plates 3221; one end of the connecting rod 33 is connected to the front connector 316, and the other end of the connecting rod 33 is connected to the rear connector 323, thereby realizing the transmission connection between the front pulley mechanism 31 and the rear pulley mechanism 32.

[0046] In this embodiment of the invention, the rear lifting seat 321 includes a rear seat body 3211 and a rear support leg 3212. The rear seat body 3211 and the rear support leg 3212 are arranged perpendicularly to each other. The second oblique arc surface 3213 is formed at the angle between the rear seat body 3211 and the rear support leg 3212.

[0047] See Figure 14-20The transmission assembly 5 includes a transmission box assembly 51, a first transmission bar 52, and a transmission panel 53. The transmission box assembly 51 includes a push-pull rod 511 for transmission connection with the handle 4 and reciprocating linear motion. The first transmission bar 52 engages with the push-pull rod 511 to achieve transmission. The transmission panel 53 has a square groove 531 extending along its length, and the first transmission bar 52 slides within the square groove 531. The engagement surface between the first transmission bar 52 and the push-pull rod 511 is an inclined surface 51111. When the handle 4 is rotated to move the push-pull rod 511 and the first transmission bar 52 to the end of their stroke, the door body 1 is in a raised state. Under the reverse thrust of the weight of the door body 1, the first transmission bar 52 moves relative to the push-pull rod 511 along the inclined surface 51111 and abuts against the inner wall of the square groove 531 to generate friction, thereby achieving positioning.

[0048] Thus, based on the above structure, when the handle 4 is rotated, it can drive the push-pull rod 511 and the first transmission bar 52 to reciprocate linearly, thereby driving the lifting push-pull pulley device 3 set at the bottom of the door body 1 to perform lifting or lowering actions to realize the lifting or lowering of the door body 1. When the door body 1 is in the lifted state, under the reverse thrust of the weight of the door body 1, the reverse thrust pushes the first transmission bar 52 to move downward relative to the push-pull rod 511 along the inclined surface 51111 and abut against the inner wall of the square groove 531 to generate friction, thereby realizing the automatic locking of the first transmission bar 52 at the end position. Therefore, it is not necessary to increase the positioning force of the handle 4 to ensure the lifting state of the pulley. In addition, when the reverse thrust is greater, the friction between the first transmission bar 52 and the inner wall of the transmission panel 53 is greater, the positioning force is stronger, and the locking is more reliable.

[0049] See also Figure 15 Specifically, the push-pull rod 511 and the first transmission bar 52 are connected by a snap-fit ​​structure. This snap-fit ​​structure includes a snap-fit ​​block 5111 and a snap-fit ​​hole 521. The snap-fit ​​block 5111 is located at one end of the push-pull rod 511, and the snap-fit ​​hole 521 is formed on the first transmission bar 52. Both sides of the snap-fit ​​block 5111 are downwardly inclined and inwardly tapering slopes 51111. Thus, the push-pull rod 511 and the first transmission bar 52 are connected by a snap-fit ​​structure, and the sloped surface between them allows for a transmission connection. When the push-pull rod 511 moves to the end of its stroke and receives a reverse thrust, the first transmission bar 52 automatically shifts along the sloped surface 51111 and presses against the inner wall of the transmission panel 53, generating friction to achieve locking.

[0050] Of course, in other embodiments, the inclined surface 51111 can also be formed in the card hole 521, which can achieve the same technical effect. There is no limitation on its position.

[0051] See Figure 16-18 The transmission box assembly 51 also includes a box body fixedly connected within the square groove 531, and the push-pull rod 511 is movably disposed within the box body. Specifically, the box body includes a first transmission box side plate 512, a second transmission box side plate 513, and connecting posts 514. The first transmission box side plate 512 and the second transmission box side plate 513 are aligned horizontally with a gap between them. Two connecting posts 514 are provided and arranged with a gap between them. The two ends of the two connecting posts 514 pass through the first transmission box side plate 512 and the second transmission box side plate 513 respectively to connect the two and align them horizontally with a gap between them to form the box body.

[0052] Preferably, the front and rear ends of the first transmission box side plate 512 and the second transmission box side plate 513 are respectively connected and fixed in the square groove 531 of the transmission panel 53 by connecting screws 54 and connecting rivets 55. In this way, the transmission box assembly 51 is fixed as a whole in the square groove 531 of the transmission panel 53, which not only makes installation quick and suitable for standardized production, but also facilitates maintenance and replacement.

[0053] Furthermore, the transmission box assembly 51 also includes a square bushing 515 rotatably clamped between the first transmission box side plate 512 and the second transmission box side plate 513, which is connected to the push-pull rod 511. The square bushing 515 has a square shaft hole 5151 for inserting into the square shaft of the handle 4 to achieve a transmission connection. When the handle 4 is rotated, the square bushing 515 can be rotated through the insertion of the square shaft into the square shaft hole 5151, thereby driving the push-pull rod 511 to perform reciprocating linear motion. Preferably, the opposite side walls of the first transmission box side plate 512 and the second transmission box side plate 513 are each provided with two limiting bosses 518, which are arranged 180 degrees apart and are used to restrict the square bushing 515 from reciprocating 180 degrees.

[0054] Among them, such as Figures 19-20 As shown, when the handle 4 is rotated to drive the square bushing 515 to rotate clockwise, it can drive the push-pull rod 511 to move forward in a straight line; when the square bushing 515 is rotated counterclockwise, it can drive the push-pull rod 511 to move backward in a straight line.

[0055] Furthermore, the first transmission box side plate 512 has a through first circular hole 5121, and one side of the square bushing 515 has a first boss 5153 that rotatably passes through the first circular hole 5121. The second transmission box side plate 513 has a through second circular hole 5131, and the other side of the square bushing 515 has a second boss 5154 that rotatably passes through the second circular hole 5131. In addition, the square bushing 515 has a first mounting hole 5152, and the push-pull rod 511 has a second mounting hole 5112. The connection between the square bushing 515 and the push-pull rod 511 can be achieved by passing a pin 517 through the first mounting hole 5152 and the second mounting hole 5112.

[0056] Therefore, by confining the square bushing 515 within the first circular hole 5121 and the second circular hole 5131, it can only rotate 180 degrees back and forth and cannot move circumferentially. The structure is simple, the motion trajectory is controllable, and it avoids disengagement or jamming. Secondly, the push-pull rod 511 is fixedly connected to the square bushing 515 through the pin 517 and makes linear reciprocating motion as the square bushing 515 rotates. The transmission is direct, without gaps, and the response is rapid, reducing energy loss.

[0057] Preferably, bushing washers 516 are provided between the first boss 5153 and the first circular hole 5121, and between the second boss 5154 and the second circular hole 5131. In this way, by providing bushing washers 516, axial limiting, friction reduction, wear reduction, tolerance absorption, and improved assembly processability and operational stability can be achieved while ensuring smooth rotation of the square bushing 515.

[0058] See also Figure 21-38 The multi-point locking structure 6 includes a first hook lock assembly 61 and a second hook lock assembly 62 arranged vertically and spaced apart within the transmission groove on the second side of the door body 1. The first hook lock assembly 61 includes a hook seat 611 slidably disposed within the transmission groove and a first hook 612 mounted on the hook seat 611. The second hook lock assembly 62 includes a lock frame 621 fixed to the door body 1 and a second hook 622 slidably disposed on the lock frame 621 and located within the transmission groove. The hook seat 611 and the second hook 622 are connected by a second transmission bar 65. The hook seat 611 is connected to the rear pulley mechanism 32. When the handle 4 is rotated, the second hook 622 and the first hook 612 on the hook seat 611 can slide up and down synchronously, and the first hook 612 and the second hook 622 can respectively engage with the first lock seat 8 and the second lock seat 9 mounted on the door frame 7 to achieve multi-point locking.

[0059] Therefore, by setting up a multi-point locking structure 6, when the door body 1 is locked, the door body 1 can be pulled towards the door frame 7 by multiple locking points, so that the rubber strip is evenly compressed. This changes the reliance on the rubber strip for adhesion to multi-point forced compression, which greatly improves the waterproofness and sealing performance of the door body, while reducing the dependence on processing precision and rubber strip material, thus saving costs.

[0060] See Figure 21-22 The first hook lock assembly 61 also includes an eccentric adjustment pin 613, which includes a main shaft 6131 and an eccentric shaft 6132 disposed at the bottom of the main shaft 6131. ​​The main shaft 6131 passes through the first hook 612, and the eccentric shaft 6132 is connected and fixed to the hook seat 611. Thus, when the main shaft 6131 is rotated, the first hook 612 can be moved up and down relative to the hook seat 611 to adjust its position.

[0061] Thus, by making the first hook 612 in the first hook lock assembly 61 adjustable, when it is necessary to adjust the tightness of the first hook 612 when it is engaged with the first lock seat 8, the eccentric adjusting pin 613 can be rotated to move the first hook 612 relative to the hook seat 611, thereby changing the distance between it and the first lock seat 8 to adjust the tightness.

[0062] Furthermore, the first hook lock assembly 61 also includes a fixing screw 614. The first hook 612 has a guide hole 6121. The fixing screw 614 passes through the guide hole 6121 and is fixed on the hook seat 611. When the first hook 612 is moved up and down relative to the hook seat 611, the first hook 612 can move along the guiding direction of the guide hole 6121.

[0063] In addition, the first hook lock assembly 61 also includes a noise reduction component 615 disposed on the hook seat 611. The noise reduction component 615 is used to abut against the inner wall of the transmission groove, so that the hook seat 611 does not directly rub against the transmission groove, thereby playing a role in noise reduction.

[0064] See Figure 23-26 The second locking hook 622 is slidably mounted on the lock frame 621. Specifically, the lock frame 621 has a protrusion 6211, and the second locking hook 622 has a slot 6221. The second locking hook 622 is fitted onto the protrusion 6211 through the slot 6221 and is confined within the slot 6221, moving along the direction of the slot 6221. In addition, the second hook lock assembly 62 also includes a locking hook spring 623 disposed between the lock frame 621 and the second locking hook 622 and engaging with both. When the handle 4 is rotated to drive the second locking hook 622 to slide and engage with the second lock seat 9 to achieve locking, the locking hook spring 623 is in a compressed state. When the handle 4 is rotated to return to its original position, the spring force of the locking hook spring 623 can drive the second locking hook 622 to return to its original position and disengage from the second lock seat 9, thereby unlocking.

[0065] See Figure 27-31 The multi-point locking structure 6 also includes a top lock assembly 63 disposed in the transmission groove at the top corner on the other side of the door body 1. The top lock assembly 63 includes an upper lock seat 631 fixed to the transmission groove at the top corner on the other side of the door body 1, a spring piece 632 slidably passing through the upper lock seat 631, an upper top plate seat 633 fixed to one end of the spring piece 632 and horizontally slidable in the upper lock seat 631, and a pull rod 634 fixed to the other end of the spring piece 632 and vertically slidable in the upper lock seat 631. The pull rod 634 is connected to the lock hook seat 611 through a third transmission bar 66. The upper top plate seat 633 is provided with an upper top plate 635, and the upper lock seat 631 is provided with a guide slope 6311. The bottom surface of the upper top plate 635 abuts against the guide slope 6311. When the handle 4 is rotated to drive the lock hook seat 611 to slide, the pull rod 634 can be driven to move vertically up and down, and through the spring piece 632, the upper top plate seat 633 can be driven to move horizontally, thereby driving the upper top plate 635 to slide along the guide slope 6311 and move up or down. When the upper top plate 635 moves up along the guide slope 6311, the upper top plate 635 is used to abut against the upper rail of the door frame to achieve locking. When the upper top plate 635 moves down along the guide slope 6311, unlocking can be achieved.

[0066] The top lock assembly 63 also includes a top pin 636, through which the upper top plate 635 is rotatably mounted on the upper top plate seat 633 via the top pin 636. When the upper top plate 635 moves along the guide slope 6311, it rotates synchronously to achieve upward or downward tilting.

[0067] In this embodiment, the upper lock seat 631 is fixed to the door body 1 by a plurality of fasteners 637, which are fastening screws.

[0068] Therefore, by setting the top lock component 63, when the door body 1 is locked, the top lock component 63 can lock the top of the other side of the door body 1, ensuring the uniformity of the door body 1 locking and thus improving its locking firmness.

[0069] See Figures 32-36It also includes a pull-down assembly 64 disposed in the transmission groove at the bottom corner on the other side of the door body 1. The pull-down assembly 64 includes a pull-down outer box 641 fixed in the transmission groove at the bottom corner on the other side of the door body 1, a push-down seat 642 horizontally slidable in the pull-down outer box 641, and a pull-down member 643 vertically slidable in the pull-down outer box 641. The push-down seat 642 has a groove 6421, and the pull-down member 643 has a protrusion 6431 that engages with the groove 6421 for mutual sliding cooperation. The push-down seat 642 is connected to the rear pulley mechanism 32, and the pull-down member 643 is connected to the second lock hook 622 through a fourth transmission bar 67. When the handle 4 is rotated to drive the push-down seat 642 to move horizontally and approach the pull-down member 643, the pull-down member 643 can be driven to move vertically downward through the sliding engagement of the groove 6421 and the protrusion 6431, thereby driving the second lock hook 622 to slide.

[0070] Furthermore, it also includes a pull-down baffle 646, which presses against the vertical surface of the pull-down outer box 641 and is connected to the pull-down member 643 so that the pull-down member 643 can only reciprocate along the vertical direction of the pull-down outer box 641.

[0071] The pull-down assembly 64 further includes a push spring 644 disposed between the push base 642 and the pull-down outer box 641 and engaging with both, and a pull spring 645 disposed between the pull-down member 643 and the pull-down outer box 641 and engaging with both. When the handle 4 is rotated to move the push base 642 horizontally to approach the pull-down member 643, the pull-down member 643 moves vertically downward, and both the push spring 644 and the pull spring 645 are in a compressed state. When the handle 4 is released, under the elastic force of the push spring 644 and the pull spring 645, the push base 642 and the pull-down member 643 can be driven to reset and move respectively.

[0072] Therefore, when the rear pulley mechanism 32 is lifted, its rear pulley fixing plate 3221 will press against the push seat 642, causing the push seat 642 to move towards the pull member 643, and the pull member 643 will move downwards simultaneously. The pull member 643 is connected to the second lock hook 622 of the second hook lock assembly 62 via the fourth transmission bar 67. When the pull member 643 moves, it will simultaneously drive the second lock hook 622 to move synchronously to engage or disengage with the second lock seat 9, thereby realizing the locking and unlocking actions of the door body 1. Figures 37-38 As shown.

[0073] In summary, the lifting and sliding door and window system provided by the present invention has the following beneficial effects: (I) The lifting and sliding door and window system of the present invention, firstly, on the transmission assembly 5, the push-pull rod 511 and the first transmission bar 52 are engaged by an inclined surface 51111. When the push-pull rod 511 moves to the end of its stroke and is subjected to a reverse thrust, the first transmission bar 52 will automatically shift along the inclined surface 51111 and press against the inner wall of the transmission panel 53 to generate friction, thereby realizing the automatic locking of the first transmission bar 52 at the end position. Therefore, it is not necessary to increase the positioning force of the handle 4 to ensure the pulley lifting state. Moreover, when the reverse thrust is greater, the friction between the first transmission bar 52 and the inner wall of the transmission panel 53 is greater, the positioning force is stronger, and the locking is more reliable. Secondly, by setting on the other side of the door body 1 The multi-point locking structure 6 allows the driven side of the door body 1 to be pulled towards the door frame by multiple locking points when the door body 1 is locked, so that the rubber strip is evenly compressed. This changes the reliance on the rubber strip for adhesion to multi-point forced pressing, improving the waterproofness and sealing of the door body 1. At the same time, it reduces the dependence on processing precision and rubber strip material, saving costs. Finally, on the lifting and pushing pulley device 3, the first inclined arc surface 3113 is opened on the front lifting seat 311, and the front lifting wheel 3123 rolls on the first inclined arc surface 3113 to achieve lifting and lowering. The advantage of this design is that setting the first inclined arc surface 3113 can effectively lengthen the lifting distance, thereby reducing the lifting slope, making the user operation more effortless, and the lifting movement smoother.

[0074] (ii) In the lifting and sliding door and window system of the present invention, the front connecting rod traction structure in the front pulley mechanism 31 is used to pull the front lifting wheel 3123 to roll on the front lifting seat 311. When the front lifting wheel 3123 rolls to the lowest point of the first inclined arc surface 3113, the front connecting rod traction structure is in a folded state and its lowest point does not protrude from the front lifting wheel 3123. Therefore, it will not interfere with the lower rail 2. Therefore, the diameter of the front pulley 3122 is made smaller, so that the overall size of the front pulley mechanism 31 can be made smaller, thereby adapting to the door and window profiles with extremely narrow frames and meeting the needs of modern buildings for minimalist and beautiful design.

[0075] (III) In the lifting and sliding door and window system of the present invention, the diameter of the front lifting wheel 3123 can be designed to be relatively large, thereby increasing the lever arm and reducing the force required to lift the door leaf. At the same time, since the load-bearing method of the front lifting wheel 3123 is to transfer the weight to the first inclined arc surface 3113, the lifting angle can be reduced by extending the length of the first inclined arc surface 3113, thereby reducing the operating force required for lifting, and thus making it particularly suitable for lifting and sliding operations of heavy door leaves.

[0076] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0077] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0078] Furthermore, in the description of this invention, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0079] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A lift-and-slide door / window system, characterized in that, include: Door body; The handle is rotatably located at the front end of one side of the door body; A transmission assembly is disposed in a transmission groove on one side of the door body and includes a push-pull rod, a first transmission bar, and a transmission panel. The push-pull rod is driven and engaged with the handle. The first transmission bar is engaged with the push-pull rod, and its engagement surface is an inclined plane. The first transmission bar slides within the transmission panel. When the handle is rotated to move the first transmission bar to the end of its stroke, under the action of a reverse thrust, the first transmission bar moves relative to the push-pull rod along the inclined plane and abuts against the transmission panel to achieve frictional positioning. The lifting and pushing pulley device is located at the bottom of the door body and includes a front pulley mechanism and a rear pulley mechanism arranged at left and right intervals. One end of the front pulley mechanism is driven by the first transmission bar, and the other end is driven by the rear pulley mechanism. The multi-point locking structure is located in the transmission groove on the other side of the door body and includes a first hook lock assembly and a second hook lock assembly arranged at vertical intervals. One end of the second hook lock assembly is driven to engage with the rear pulley mechanism, and the other end is driven to engage with the first hook lock assembly. When the handle is rotated, the first hook lock assembly and the second hook lock assembly can be driven to engage with the first lock seat and the second lock seat on the door frame respectively to achieve multi-point locking. The front pulley mechanism includes a front lifting seat and a front lifting pulley assembly. The front lifting pulley assembly includes a front support, a front pulley, and a front lifting wheel. Both the front pulley and the front lifting wheel are rotatably mounted on the front support. The front lifting seat has a first oblique arc surface, and the front lifting wheel is rolled on the first oblique arc surface. When the handle is rotated to move the front support, the front lifting wheel can be driven to roll on the first oblique arc surface. When the front lifting wheel rolls from the highest point to the lowest point of the first oblique arc surface, the door body completes the lifting action.

2. The lifting and sliding door and window system according to claim 1, characterized in that, The front lifting pulley assembly also includes a front link traction structure, which includes a first link and a second link. One end of the first link is rotatably mounted on the front lifting seat, and the other end is rotatably connected to one end of the second link. The other end of the second link is rotatably connected to the front lifting wheel. When the handle is rotated to drive the front lifting wheel to roll from the highest point to the lowest point of the first inclined arc surface, the door body completes the lifting action. At this time, the first link and the second link are in a folded state and their lowest points do not protrude from the front lifting wheel.

3. The lifting and sliding door and window system according to claim 1, characterized in that, The rear pulley mechanism includes a rear lifting seat and a rear lifting pulley assembly. The rear lifting pulley assembly includes a rear support, a rear pulley, and a rear lifting wheel. The rear support and the front support are connected by a connecting rod. The rear pulley and the rear lifting wheel are rotatably disposed within the rear support. The rear lifting seat has a second inclined arc surface, and the rear lifting wheel is rolled on the second inclined arc surface. When the handle is rotated to move the front support, the connecting rod can move the rear support, which in turn causes the rear lifting wheel to roll along the second oblique arc surface. When the rear lifting wheel rolls from the highest point to the lowest point of the second oblique arc surface, the door body completes the lifting action.

4. The lift-and-slide door and window system according to claim 3, characterized in that, The rear lifting pulley assembly also includes a rear link traction structure, which includes a third link and a fourth link. One end of the third link is rotatably mounted on the rear lifting seat, and the other end is rotatably connected to one end of the fourth link. The other end of the fourth link is rotatably connected to the rear lifting wheel. When the handle is rotated to drive the rear lifting wheel to roll from the highest point to the lowest point of the second inclined arc surface, the door body completes the lifting action. At this time, the third link and the fourth link are in a folded state and their lowest points do not protrude from the rear lifting wheel.

5. The lift-and-slide door and window system according to claim 1, characterized in that, It also includes push-pull components, corner components, and connecting rods, among which: The push-pull component is slidably mounted on the front lifting seat and is connected to the first transmission bar. The first end of the corner piece is rotatably mounted on the front lifting seat, the second end of the corner piece is rotatably connected to the push-pull piece, and the third end of the corner piece is rotatably connected to one end of the connecting rod. The other end of the connecting rod is connected to one end of the front bracket; When the handle is rotated, the push-pull member can be driven to slide on the front lifting seat through the first transmission bar, and then the front bracket can be moved through the transmission of the corner member and the connecting rod.

6. The lift-and-slide door and window system according to claim 1, characterized in that, The first transmission bar and the push-pull rod are connected by a snap-fit ​​structure. The snap-fit ​​structure includes a snap-fit ​​block and a snap-fit ​​hole that engage with each other. One of the snap-fit ​​block and the snap-fit ​​hole is provided on the first transmission bar, and the other is provided on the push-pull rod. The inclined surface is formed on the card block or the card hole.

7. The lifting and sliding door and window system according to claim 1, characterized in that, The transmission assembly also includes a housing fixedly disposed within the transmission panel. The housing includes a first transmission housing side plate, a second transmission housing side plate, and a connecting post. The two ends of the connecting post pass through the first transmission housing side plate and the second transmission housing side plate respectively to connect the two and align them with a left-right gap. It also includes a square bushing that is rotatably clamped between the first transmission box side plate and the second transmission box side plate. The push-pull rod is located between the first transmission box side plate and the second transmission box side plate and is connected to the square bushing. The square bushing has a square shaft hole that is inserted and engaged with the square shaft of the handle to realize the transmission connection. When the handle is rotated, the square bushing can be rotated, thereby driving the push-pull rod to perform reciprocating linear motion.

8. The lift-and-slide door and window system according to claim 1, characterized in that, The first hook lock assembly includes a hook seat that slides in the transmission groove and a first hook that is mounted on the hook seat; the second hook lock assembly includes a lock frame that is fixed to the door leaf body frame and a second hook that slides on the lock frame and is located in the transmission groove; the hook seat and the second hook are connected by a second transmission bar. The second locking hook is connected to the rear pulley mechanism. When the handle is rotated to move the rear pulley mechanism, the second locking hook and the first locking hook on the locking hook seat can slide synchronously, and the first locking hook and the second locking hook can respectively engage with the first locking seat and the second locking seat on the door frame to achieve multi-point locking.

9. The lift-and-slide door and window system according to claim 8, characterized in that, The multi-point locking structure also includes a top lock assembly disposed in the transmission groove at the top corner of the second side of the door body. The top lock assembly includes an upper lock seat fixed to the transmission groove at the top corner of the second side of the door body, a spring piece slidably passing through the upper lock seat, an upper top plate seat fixed to one end of the spring piece and horizontally slidable in the upper lock seat, and a lower pull rod fixed to the other end of the spring piece and vertically slidable in the upper lock seat. The lower pull rod is connected to the lock hook seat through a third transmission bar. The upper top plate seat is provided with a rotatable upper top plate, and the upper lock seat is provided with a guide slope. The bottom surface of the upper top plate abuts against the guide slope. When the lock hook seat is slid, the pull rod can be driven to move vertically, and the upper top plate seat can be driven to move horizontally through the spring piece, thereby driving the upper top plate to slide along the guide slope and tilt up or down. The upper top plate is used to abut against the upper rail of the door frame to achieve locking.

10. The lift-and-slide door and window system according to claim 8, characterized in that, The multi-point locking structure also includes a pull-down assembly disposed in the transmission groove at the bottom corner of the second side of the door body. The pull-down assembly includes a pull-down outer box fixed to the transmission groove at the bottom corner of the second side of the door body, a push-down seat horizontally slidable in the pull-down outer box, and a pull-down member vertically slidable in the pull-down outer box. The push-down seat has an inclined groove, and the pull-down member has a protrusion that engages with the inclined groove for sliding cooperation. The push-down seat is used to abut against the rear support to achieve a transmission cooperation. The pull-down member is connected to the second lock hook through a fourth transmission bar. The push-down seat abuts against the rear support to achieve a transmission connection. When the rear pulley mechanism is moved, it can abut against and drive the lower push seat to move horizontally closer to the pull-down member, and through the sliding engagement of the inclined groove and the protrusion, drive the pull-down member to move vertically downward, thereby driving the second locking hook to slide.

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