A lift and slide door and window system

Abstract

The utility model provides a kind of door and window system of lifting, comprising: door and window fan;Track;Transmission rod, up and down slidingly arranged in door and window fan;Lifting pulley structure, including support, pulley assembly and transmission assembly, support is arranged at the bottom of door and window fan, pulley assembly movably arranged in support, transmission assembly is drivingly connected between transmission rod and pulley assembly;Transmission rod moves upward, under the drive of transmission assembly, pulley assembly moves downward relative to support to contact with track;Transmission rod moves downward, under the drive of transmission assembly, pulley assembly moves upward relative to support to separate from track, and make support or the bottom of door and window fan contact track;Elastic member, connected between door and window fan and transmission rod, elastic member is configured to exert upward elastic force on transmission rod.Such, can effectively avoid support or the bottom of door and window fan directly, violently impact track, and, in the process of making transmission rod move upward, elastic force can assist transmission rod upward movement, play the role of saving labor.

Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, and specifically relates to a lifting door and window system. Background Technology

[0002] Existing lifting door and window systems, such as the novel lifting pulley assembly and lifting door and window system disclosed in Chinese Patent Publication No. CN222558353U, operate based on the principle of leverage. This system rotates a handle to slide a transmission bar, which in turn drives the lifting pulley assembly located at the bottom of the door leaf to perform lifting or lowering movements, thereby achieving the lifting or lowering of the door leaf.

[0003] This lifting pulley system typically consists of a transmission assembly, a lifting bracket, and a pulley assembly. The lifting bracket is generally fixed to the door leaf, and the lifting bracket and pulley assembly are slidably connected via a slanted groove guide shaft structure. The transmission assembly is responsible for driving the movement of the pulley assembly. Through the sliding engagement of the slanted groove and guide shaft, the vertical distance between the lifting bracket and the pulley assembly changes as they slide relative to each other, thus achieving the lifting and lowering of the door leaf. Specifically, when the transmission bar moves upward, the pulley assembly moves downward relative to the lifting bracket under the drive of the transmission assembly and connects with the track. At this time, the door leaf is in the raised position and can slide freely relative to the track. When the transmission bar moves downward, the pulley assembly moves upward relative to the lifting bracket under the drive of the transmission assembly. At this time, the bottom of the lifting bracket or door leaf will abut against the track, and the door leaf is in the lowered position and fixed relative to the track.

[0004] However, this existing lift-up window system has a significant problem: when the door is moved to the lowered position, the lifting bracket or the bottom of the door may hit the track. This impact not only generates considerable noise, affecting the user experience, but also causes varying degrees of damage to the lift-up window system. Utility Model Content

[0005] In order to overcome at least one of the defects described in the prior art, the present invention provides a lifting door and window system to solve the problem of the bracket or bottom of the door hitting the track when the door is lowered in the existing lifting door and window system, reduce noise and damage, extend the service life of the door and window system and track, and at the same time save effort when lifting the door and window sash, making it convenient for users to operate.

[0006] The technical solution adopted by this utility model to solve its problem is: A lifting door / window system includes: a door / window sash; a track located below the door / window sash; a transmission rod slidingly mounted on the door / window sash; a lifting pulley structure including a bracket, a pulley assembly, and a transmission assembly, wherein the bracket is located at the bottom of the door / window sash, the pulley assembly is movably mounted on the bracket, and the transmission assembly is throttlely connected between the transmission rod and the pulley assembly; when the transmission rod moves upward, driven by the transmission assembly, the pulley assembly moves downward relative to the bracket to contact the track; when the transmission rod moves downward, driven by the transmission assembly, the pulley assembly moves upward relative to the bracket to separate from the track, and the bottom of the bracket or the door / window sash contacts the track; and an elastic element connected between the door / window sash and the transmission rod, the elastic element being configured to apply an upward elastic force to the transmission rod.

[0007] As an optional implementation, the lifting door and window system further includes an adjustment structure connected to the elastic element, the adjustment structure being used to adjust the elastic force applied by the elastic element to the transmission rod.

[0008] As an optional implementation, the adjustment structure includes an adjustment rod, a movable seat, and a fixed seat. The fixed seat is fixedly disposed on the door / window sash. The first end of the elastic element is connected to the movable seat, and the second end of the elastic element is connected to the transmission rod. The adjustment rod is connected between the fixed seat and the movable seat, and the adjustment rod is used to adjust the position of the movable seat relative to the fixed seat in the vertical direction.

[0009] As an optional implementation, the door / window sash has a vertical side frame, the vertical side frame is provided with a vertical sliding groove, the transmission rod slides in the vertical sliding groove, and the fixing seat is fixedly provided in the vertical sliding groove.

[0010] As an optional implementation, the adjustment structure further includes a first fastener, the vertical slide has a bottom wall and side walls connected to both sides of the bottom wall, the transmission rod is slidably connected to the bottom wall, the first fastener passes through the side wall and the fixed seat, and the first fastener is located outside the sliding trajectory of the transmission rod.

[0011] As an optional implementation, the adjustment structure further includes a worm gear and a worm, the worm being rotatably mounted on the fixed seat, the worm and the adjustment rod being coaxial and threadedly connected, the worm gear and the worm being meshed, and one end of the adjustment rod being fixedly mounted on the movable seat.

[0012] As an optional implementation, the adjustment structure further includes a limiting member disposed on the fixed base; the limiting member can move between a first position and a second position. When in the first position, the limiting member abuts against the side wall of the worm to restrict the rotation of the worm. When in the second position, the limiting member and the worm are separated to release the rotation restriction of the worm.

[0013] As an optional implementation, the door / window sash is provided with a perforated groove, which is used to expose the worm gear and the limiting member.

[0014] As an optional implementation, the adjustment structure further includes a limiting ring, which is sleeved on the adjustment rod; when the adjustment rod moves relative to the worm gear to the lowest or highest position, the limiting ring and the worm gear abut against each other to limit the movement stroke of the adjustment rod.

[0015] As an optional implementation, the fixed base includes a first base body and a second base body connected to each other, the worm gear is rotatably disposed on the first base body, and the worm is rotatably disposed on the second base body.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, by installing an elastic element between the door / window sash and the transmission rod, and applying an upward elastic force to the transmission rod, the elastic element can play a buffering role during the process of the transmission rod moving downward to lower the door / window sash to contact the track. This can effectively prevent the bracket or the bottom of the door / window sash from directly and violently impacting the track, greatly reducing the noise caused by the impact, and reducing the damage caused by the impact to the lifting door / window system, thus extending the service life of the lifting door / window system.

[0017] Secondly, because the elastic element applies an upward elastic force to the transmission rod, the elastic force can assist the transmission rod in moving upward during the process of moving the transmission rod upward, which saves effort. This makes it easier and more convenient for users to operate the lifting of the door and window sash, thus improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the lifting door and window system according to an embodiment of the present utility model.

[0020] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0021] Figure 3 This is an exploded structural diagram of the lifting door and window system according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the transmission rod, elastic element, adjustment structure, vertical side frame, and lock cylinder of this utility model embodiment.

[0022] Figure 5 yes Figure 4 A magnified view of part B in the middle.

[0023] Figure 6 yes Figure 4 A magnified view of part C in the middle.

[0024] Figure 7 This is a schematic diagram of the assembly structure of the adjustment structure, elastic element, lock cylinder and vertical side frame of this utility model embodiment.

[0025] Figure 8 yes Figure 7 A magnified view of part D in the middle.

[0026] Figure 9 This is a schematic diagram of the assembly structure of the elastic element and the adjustment structure according to an embodiment of the present utility model.

[0027] Figure 10 This is a schematic diagram of the holding structure of the elastic member and the adjustment structure according to an embodiment of the present utility model.

[0028] Figure 11 This is a three-dimensional structural diagram of the lifting pulley structure according to an embodiment of the present utility model. Figure 12 yes Figure 11 A magnified view of part E in the middle.

[0029] Explanation of key figure labels: 1. Door / window sash; 11. Sash body; 12. Vertical side frame; 121. First fastening hole; 122. Second fastening hole; 13. Vertical slide rail; 131. Bottom wall of the rail; 132. Side wall of the rail; 133. Guide rail; 14. Hollowed-out rail; 2. Track; 3. Lifting pulley structure; 31. Bracket; 32. Pulley assembly; 33. Transmission assembly; 34. Connecting rod; 4. Transmission rod; 41. Guide block; 42. Transmission rail; 43. Connecting block 5. Elastic element; 6. Adjustment structure; 61. Adjustment rod; 62. Movable seat; 63. Fixed seat; 631. First seat body; 6311. Slot; 632. Second seat body; 6321. Locking block; 64. Worm gear; 641. First operating part; 65. Worm; 66. First fastener; 67. Limiting element; 671. Second operating part; 68. Limiting ring; 7. Second fastener; 8. Handle; 9. Lock cylinder; 91. Transmission block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0034] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0035] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0036] Please see Figures 1 to 12 This utility model embodiment provides a lifting door and window system, including a door / window sash 1, a track 2, a lifting pulley structure 3, a transmission rod 4, and an elastic element 5. The track 2 is located below the door / window sash 1, providing support and guidance for the movement of the door / window sash 1. The transmission rod 4 slides up and down on the door / window sash 1. The lifting pulley structure 3 includes a bracket 31, a pulley assembly 32, and a transmission assembly 33. The bracket 31 is located at the bottom of the door / window sash 1, the pulley assembly 32 is movably mounted on the bracket 31, and the transmission assembly 33 is drively connected between the transmission rod 4 and the pulley assembly 32. The transmission assembly 33 is used to transmit power to drive the pulley assembly 32 and the bracket 31 to move relative to each other. The elastic element 5 is connected between the door / window sash 1 and the transmission rod 4, and the elastic element 5 is configured to apply an upward elastic force to the transmission rod 4. When the transmission rod 4 moves upward, under the drive of the transmission assembly 33, the pulley assembly 32 moves downward relative to the bracket 31 to contact the track 2, and the door and window sash 1 is lifted to a certain height. At this time, the door and window sash 1 is in a free state that can slide along the track 2. When the transmission rod 4 moves downward, the pulley assembly 32 moves upward relative to the bracket 31 and separates from the track 2 under the drive of the transmission assembly 33. At the same time, the bottom of the bracket 31 or the door / window sash 1 contacts the track 2, and the door / window sash 1 is lowered to a certain height. At this time, the door / window sash 1 is in a fixed state that cannot be slid.

[0037] The lifting door and window system provided in this embodiment of the utility model has two main aspects. First, by setting an elastic element 5 between the door / window sash 1 and the transmission rod 4, and applying an upward elastic force to the transmission rod 4, the elastic element 5 can buffer the door / window sash 1 as it moves downward to contact the track 2. This effectively prevents the bracket 31 or the bottom of the door / window sash 1 from directly and violently impacting the track 2, greatly reducing noise caused by the impact, and also reducing damage to the lifting door and window system, thus extending its service life. Second, because the elastic element 5 applies an upward elastic force to the transmission rod 4, the elastic force assists the transmission rod 4 in moving upward, saving effort. This makes it easier and more convenient for users to operate the lifting of the door / window sash 1, improving the user experience.

[0038] like Figure 11 and Figure 12 As shown, in one embodiment, the bracket 31 and the pulley assembly 32 achieve relative movement through a sliding fit of an inclined groove and a guide shaft. It is understood that the lifting pulley structure 3 of this embodiment is a pulley mechanism well-known to those skilled in the art, and its specific structure can be found in Chinese Patent Publication No. CN222558353U. Of course, this lifting pulley structure 3 can also be other pulley mechanisms capable of achieving the same function, which will not be elaborated upon here.

[0039] like Figure 11 and Figure 12 As shown, in one embodiment, the lifting pulley structure 3 further includes a connecting rod 34, and two pulley assemblies 32 are respectively connected to the two ends of the connecting rod 34. The two pulley assemblies 32 are respectively located at the bottom ends of the door and window sash 1. The connecting rod 34 can be used to make the two pulley assemblies 32 lift or sink synchronously relative to the bracket 31.

[0040] It is understandable that in some other embodiments, the bracket 31 may also be part of the bottom of the door / window sash 1, and can be designed according to actual needs.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the lifting window and door system further includes an adjustment structure 6 connected to the elastic element 5. The adjustment structure 6 is used to adjust the elastic force applied by the elastic element 5 to the transmission rod 4. Thus, firstly, different materials of the track 2, different weights of the window and door sashes 1, and different lowering speeds all require different buffering effects. By adjusting the elastic force of the elastic element 5 through the adjustment structure 6, the strength and degree of buffering can be precisely controlled according to specific window and door system parameters and usage conditions. Secondly, with the increase of usage time, the elastic element 5 may experience elastic decay, causing changes in the elastic force it applies to the transmission rod 4. Without the adjustment structure 6, the elastic decay of the elastic element 5 may affect the system's buffering and auxiliary operation functions, thereby accelerating the damage to components such as the window and door sashes 1 and the track 2. The existence of the adjustment structure 6 can adjust the elastic force of the elastic element 5 in a timely manner, compensating for its elastic decay, and keeping the system in good working condition at all times. This not only ensures the normal functioning of the system's buffering, shock absorption, and labor-saving operation, but also effectively extends the service life of the entire lifting window and door system and the track 2, reducing maintenance and replacement costs.

[0042] like Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, in one embodiment, the adjustment structure 6 includes an adjustment rod 61, a movable seat 62, and a fixed seat 63. The fixed seat 63 is fixedly mounted on the door / window sash 1. The first end of the elastic element 5 is connected to the movable seat 62, and the second end of the elastic element 5 is connected to the transmission rod 4. The adjustment rod 61 is connected between the fixed seat 63 and the movable seat 62, and is used to adjust the position of the movable seat 62 relative to the fixed seat 63 in the vertical direction. Thus, in the first aspect, using the adjustment rod 61 to adjust the position of the movable seat 62 relative to the fixed seat 63 in the vertical direction is intuitive and easy to operate. Users can precisely change the position of the movable seat 62 by simply rotating or moving the adjustment rod 61, thereby changing the degree of tension or compression of the elastic element 5, achieving precise adjustment of the elastic force, greatly reducing the difficulty and operation time of adjustment, and improving adjustment efficiency. Secondly, when the adjusting rod 61 adjusts the position of the movable seat 62 in the vertical direction, the movement trajectory is clear and stable. The movable seat 62 moves along the axis of the adjusting rod 61 without any deviation or jamming. This ensures that the stretching or compression process of the elastic element 5 is uniform and stable. This not only helps to accurately control the elastic force but also avoids damage to the elastic element 5 due to unstable adjustment, thus extending the service life of the elastic element 5 and the entire adjusting structure 6. Thirdly, the fixed seat 63 is firmly fixed to the door and window sash 1, providing a stable support point for the entire adjusting structure 6. This stable installation method ensures that the adjusting rod 61 and the movable seat 62 will not shake or shift during operation, thereby guaranteeing the accuracy and stability of the elastic force adjustment. Even during the dynamic process of frequent opening and closing of the door and window sash 1, the fixed seat 63 can always maintain its position, providing a reliable reference for the adjusting structure 6.

[0043] like Figure 5 and Figure 7 As shown, in one embodiment, the transmission rod 4 is provided with a connecting block 43, which is used to connect to the second end of the elastic member 5. The elastic member 5 applies an upward elastic force to the transmission rod 4 through the connecting block 43. Thus, firstly, as an intermediate connecting component between the elastic member 5 and the transmission rod 4, the connecting block 43 can more accurately transmit the elastic force of the elastic member 5 to the transmission rod 4. It can ensure that the direction of the force of the elastic member 5 is always consistent with the direction of movement of the transmission rod 4 during the extension and retraction process, reducing force loss and deviation, and enabling the transmission rod 4 to accurately drive the door and window sash 1 to move in a predetermined manner, improving the accuracy of operation. Secondly, the setting of the connecting block 43 increases the connection strength and stability between the transmission rod 4 and the elastic member 5. Compared with directly connecting the elastic member 5 to the transmission rod 4, the connecting block 43 can disperse the force applied by the elastic member 5, avoiding deformation or damage to the transmission rod 4 due to excessive local stress.

[0044] like Figure 7 , Figure 9 and Figure 10 As shown, in one embodiment, the elastic element 5 is a tension spring. Thus, the tension spring has the characteristic that the tension changes stably with the amount of elongation within its elastic limit. In the lifting door and window system, when the door or window is opened or closed, the transmission rod 4 drives the connecting block 43 to move, thereby causing the tension spring to extend or shorten. The tension spring can provide a corresponding and stable tension according to its elongation, continuously and uniformly applying an upward elastic force to the transmission rod 4 through the connecting block 43.

[0045] It should be noted that in some other embodiments, the elastic element 5 may also be, but is not limited to, elastic rubber, elastic silicone or other types of springs, as long as it can apply an upward elastic force to the transmission rod 4, and is not limited to one specific type.

[0046] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, in one embodiment, the window sash 1 includes a sash body 11 and a vertical side frame 12. The vertical side frame 12 is disposed on the sash body 11 and has a vertical sliding groove 13. The transmission rod 4 slides in the vertical sliding groove 13, and the fixing seat 63 is fixedly disposed in the vertical sliding groove 13. Thus, in the first aspect, by setting the vertical sliding groove 13 on the vertical side frame 12, the longitudinal space of the window sash 1 frame is fully utilized without occupying too much extra space inside or outside the window sash 1. This compact design makes the structure of the entire lifting window system simpler and more compact, realizing the installation and sliding function of the transmission rod 4 in a limited space, improving space utilization, and is especially suitable for building window and door designs with high space requirements. Secondly, the vertical slide 13 provides a clear movement track 2 for the transmission rod 4, while the fixing seat 63 is fixed in the vertical slide 13, so that the transmission rod 4, the adjustment structure 6, the elastic element 5 and other components can be integrated in an orderly manner around the vertical slide 13. This integrated design is conducive to the modular production and installation of the entire lifting door and window system. The relative positional relationship between the various components is clearer, reducing errors and debugging difficulties in the installation process, and improving production efficiency and installation quality.

[0047] like Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, in one embodiment, the adjusting structure 6 further includes a first fastener 66. The vertical slide 13 has a bottom wall 131 and side walls 132 connected to both sides of the bottom wall 131. Both the bottom wall 131 and the side walls 132 are vertically arranged. The transmission rod 4 is slidably connected to the bottom wall 131. The first fastener 66 passes through the side wall 132 and the fixing seat 63. The first fastener 66 is located outside the sliding trajectory of the transmission rod 4. This design cleverly avoids the interference of the first fastener 66 on the sliding of the transmission rod 4, ensuring that the transmission rod 4 can move smoothly along the predetermined trajectory. This not only improves the efficiency and accuracy of transmission, but also reduces noise and wear caused by motion interference.

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the lifting door and window system further includes a second fastener 7, which passes through the vertical side frame 12 and the sash body 11 to fix the vertical side frame 12 to the sash body 11.

[0049] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the vertical side frame 12 is provided with a first fastening hole 121 and a second fastening hole 122. The first fastener 66 passes through the first fastening hole 121 and the fixing seat 63, and the second fastener 7 passes through the second fastener 122 and the fan body 11.

[0050] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the transmission rod 4 is provided with a guide block 41, and the bottom wall 131 of the vertical slide groove 13 is provided with a guide groove 133 extending in the vertical direction. The guide block 41 and the guide groove 133 are slidably connected. Thus, the sliding connection between the guide block 41 and the guide groove 133 provides precise linear motion guidance for the transmission rod 4. During the lifting or lowering of the door / window sash 1, the transmission rod 4 needs to make precise linear movements in the vertical direction to ensure that the door / window sash 1 can open and close smoothly and accurately. The guide groove 133 extends in the vertical direction, and the guide block 41 slides within the guide groove 133, so that the transmission rod 4 can only move along the path specified by the guide groove 133, effectively preventing lateral deviation or swaying of the transmission rod 4 during movement, thereby ensuring the accuracy and stability of the transmission.

[0051] like Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, in one embodiment, the adjusting structure 6 further includes a worm gear 64 and a worm 65. The worm 65 is rotatably mounted on the fixed seat 63. The worm 65 and the adjusting rod 61 are coaxial and threaded together. The worm gear 64 and the worm 65 are meshed together. One end of the adjusting rod 61 is fixedly mounted on the movable seat 62. When the worm gear 64 rotates, it can drive the worm 65 to rotate. Driven by the worm 65, the adjusting rod 61 moves up and down to drive the movable seat 62 to move up and down relative to the fixed seat 63. Thus, the adjusting structure 6 can bring the following beneficial effects: Firstly, the structural design of the worm gear 64 and worm 65 transmission allows the operator to drive the adjusting rod 61 by rotating the worm gear 64 with relatively little force. By rationally designing the parameters of the worm gear 64 and worm 65, this labor-saving effect can be further amplified. When adjusting the elastic force of the lifting door and window system, the operator can easily complete the adjustment without expending much force, greatly reducing the operational burden and improving the convenience and comfort of operation. When it is necessary to precisely set the opening force of the door and window sash 1, the operator can achieve precise control of the extremely small displacement of the adjusting rod 61 by slowly rotating the worm gear 64, thereby finely adjusting the elastic force of the elastic element 5 to the ideal state, fully meeting the personalized needs of different users for the operating feel.

[0052] Secondly, the meshing transmission process between the worm gear 64 and the worm 65 is extremely smooth, without any obvious impact or vibration. During the adjustment process, the rotation of the worm gear 64 is transmitted evenly and continuously to the worm 65, which then drives the adjusting rod 61 to move up and down smoothly. This smooth transmission method effectively avoids adjustment errors caused by sudden force transmission, ensuring the accuracy and stability of the movement of the movable seat 62.

[0053] Thirdly, the worm gear 64 and worm 65 transmission mechanism can be designed to be relatively compact, with the worm 65 rotatably mounted in the fixed seat 63, the worm gear 64 meshing with the worm 65, and the adjusting rod 61 arranged coaxially with the worm 65. This layout makes full use of the internal space of the fixed seat 63 without occupying too much external space of the door and window sash 1. In the overall design of the lifting door and window system, the compact structure helps to reduce the system volume and weight, making the door and window sash 1 lighter and more beautiful. At the same time, it also provides more space for the installation and layout of other components, making it easier to realize the integrated design of the system.

[0054] It should be noted that in some other embodiments, the adjustment structure 6 may also be, but is not limited to, a telescopic rod mechanism, a gear and rack mechanism, or a cam and slider mechanism, as long as it can adjust the installation position of the first end of the elastic element 5 relative to the door and window sash 1 to adjust the elastic force applied upward by the elastic element 5 to the transmission rod 4. There is no single limitation here.

[0055] like Figure 9 and Figure 10As shown, in one embodiment, the adjusting structure 6 further includes a limiting member 67, which is disposed on the fixed base 63. The limiting member 67 can move between a first position and a second position. When in the first position, the limiting member 67 abuts against the side wall of the worm gear 65 to restrict the rotation of the worm gear 65. When in the second position, the limiting member 67 and the worm gear 65 separate to release the rotation restriction of the worm gear 65. Thus, firstly, during the daily use or transportation of the lifting door and window system, unexpected factors such as external vibration and collision may cause the worm gear 65 to rotate undesirably. When the limiting member 67 is in the first position, it can tightly abut against the side wall of the worm gear 65, effectively preventing the worm gear 65 from rotating. This feature can prevent the adjusting rod 61 from moving due to the accidental rotation of the worm gear 65, thereby causing a change in the position of the movable base 62, preventing abnormal changes in the operating force of the door and window sash 1, and ensuring the stable operation of the system under various conditions. Secondly, the limiting member 67 can move freely between the first position and the second position, providing operators with a flexible operating method. During adjustment, the limiting member 67 is moved to the second position, separating it from the worm gear 65 and releasing the rotation restriction on the worm gear 65. At this time, the operator can freely rotate the worm wheel 64, driving the worm gear 65 and the adjusting rod 61 to adjust the position of the movable seat 62. After adjustment, the limiting member 67 is moved back to the first position to restrict the rotation of the worm gear 65 and lock the adjustment result. This flexible switching method makes the adjustment process more convenient and efficient, and the operator can perform adjustment and locking operations at any time according to actual needs.

[0056] like Figure 2 As shown, in one embodiment, the door / window sash 1 is provided with a perforated groove 14, which exposes the worm gear 64 and the limiting member 67 for easy operation. Thus, the perforated groove 14 directly exposes the worm gear 64 and the limiting member 67 within the operator's line of sight, allowing the operator to quickly and accurately locate the components to be operated without having to search for them. For example, when adjusting the operating force of the door / window sash 1, the operator can immediately see the position of the worm gear 64 and directly reach out to rotate it; when locking or unlocking the rotation of the worm 65, the operator can also quickly locate the limiting member 67 and move it. This intuitive operation method greatly saves operating time and improves operating efficiency.

[0057] like Figure 2 , Figure 9 and Figure 10 As shown, in one embodiment, a first operating part 641 is provided on the side of the worm gear 64 near the hollowed-out groove 14. The first operating part 641 is used by an operator to rotate the worm gear 64.

[0058] like Figure 2 , Figure 9 and Figure 10As shown, in one embodiment, the limiting member 67 is screwed to the fixing base 63, and a second operating part 671 is provided on the side of the limiting member 67 near the hollow groove 14. The second operating part 671 is used for the operator to operate to turn the limiting member 67.

[0059] like Figure 1 and Figure 2 As shown, in one embodiment, the cutout groove 14 is located on the vertical side frame 12 of the door / window sash 1.

[0060] like Figure 8 , Figure 9 and Figure 10 As shown, in one embodiment, the adjusting structure 6 further includes a limiting ring 68, which is sleeved on the adjusting rod 61. When the adjusting rod 61 moves to its lowest position relative to the worm gear 65, the limiting ring 68 and the worm gear 65 abut against each other to limit the downward movement of the adjusting rod 61. Thus, firstly, during the use of the lifting door and window system, it is necessary to precisely control the elastic force applied by the elastic element 5 to the transmission rod 4 to meet different usage requirements. If the movement of the adjusting rod 61 is unrestricted, over-adjustment or under-adjustment may occur, resulting in the elastic force failing to accurately reach the set value. The limiting ring 68, by limiting the downward movement of the adjusting rod 61, ensures that each adjustment is within a certain range, helping the user to adjust the elastic force more accurately, ensuring that the elastic force is always maintained at a suitable level, and improving the accuracy of the adjustment. Secondly, for the elastic element 5, excessive deformation may cause it to exceed its elastic limit, resulting in permanent damage and making it impossible to restore its original elastic properties, thereby affecting the normal operation of the entire lifting door and window system; the limiting ring 68 abuts against the worm gear 65 when the adjusting rod 61 moves to the lowest position, effectively limiting the downward movement of the adjusting rod 61, preventing the elastic element 5 from being damaged due to excessive deformation, extending the service life of the elastic element 5, and reducing maintenance and replacement costs.

[0061] It should be noted that in some other embodiments, the limiting ring 68 can also be used to limit the upward movement of the adjusting rod 61. When the adjusting rod 61 moves to the highest position relative to the worm gear 65, the limiting ring 68 can be made to abut against the adjusting rod 61.

[0062] like Figure 8 , Figure 9 and Figure 10As shown, in one embodiment, the worm gear 65 is fitted onto the adjusting rod 61. This design, where the worm gear 65 is fitted onto the adjusting rod 61, integrates the two key components into a single spatial arrangement. In the limited internal space of the lifting window system, this design avoids the need for an additional installation location for the worm gear 65, reducing space occupation. Furthermore, the worm gear 65 is directly fitted onto the adjusting rod 61, achieving direct transmission between the two. Compared to the traditional method of transmission via an intermediate connector, this direct transmission reduces energy loss in the transmission process. During the adjustment of the elastic force, the worm wheel 64 drives the worm gear 65 to rotate. The rotational force of the worm gear 65 can be transmitted to the adjusting rod 61 more directly and efficiently, causing the adjusting rod 61 to move accordingly. This allows for more precise adjustment of the elastic force applied by the elastic element 5 to the transmission rod 4, improving transmission efficiency.

[0063] like Figure 8 , Figure 9 and Figure 10 As shown, in one embodiment, the fixed base 63 includes a first base body 631 and a second base body 632 connected to each other. The worm gear 64 is rotatably disposed on the first base body 631, and the worm 65 is rotatably disposed on the second base body 632. Thus, firstly, the two base bodies provide independent support for the worm gear 64 and the worm 65 respectively. This independent support method can reduce the vibration interference between the worm gear 64 and the worm 65 during transmission; for example, when the worm gear 64 rotates, the vibration it generates will not be directly transmitted to the support structure of the worm 65, and vice versa, thereby ensuring that the worm gear 64 and the worm 65 can rotate more smoothly and improving the stability of the transmission. Secondly, this split design allows for more flexible arrangement of the positions of the worm gear 64 and the worm 65. Depending on the actual space conditions of the lifting door and window system, the installation positions of the first seat 631 and the second seat 632 can be adjusted respectively, so that the worm gear 64 and the worm 65 can achieve the best transmission layout in a limited space. This avoids the space waste or component interference problems that may be caused by the integrated fixed seat 63 design, and improves the utilization rate of the internal space of the system.

[0064] like Figure 10 As shown, in one embodiment, one of the first base 631 and the second base 632 is provided with a locking block 6321, and the other is provided with a locking slot 6311, and the locking block 6321 and the locking slot 6311 are engaged.

[0065] like Figure 10 As shown, in one embodiment, at least two first fasteners 66 are provided, and the at least two first fasteners 66 are respectively inserted into the first seat 631 and the second seat 632.

[0066] like Figure 5 , Figure 8 , Figure 9 and Figure 10 As shown, in one embodiment, the axis of the worm gear 64 is arranged horizontally, and the axis of the worm 65 is arranged vertically, with the axes of the worm gear 64 and the worm 65 perpendicular to each other. Thus, in the lifting door and window system, the horizontal and vertical directions are the two main spatial dimensions. The layout of the worm gear 64 being horizontally arranged and the worm 65 being vertically arranged with perpendicular axes can make full use of the limited vertical space inside the door and window system. In relatively narrow vertical areas such as the sides or top of the door and window sash 1, the worm gear 64 and the worm 65 can be reasonably arranged, avoiding occupying too much space in a single horizontal or vertical direction, making the entire adjustment structure 6 more compact and adaptable to the confined installation environment of the door and window system.

[0067] like Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment, the lifting door and window system also includes a handle 8 and a lock cylinder 9. The handle 8 and the lock cylinder 9 are disposed on the door and window sash 1. The handle 8 and the lock cylinder 9 are connected in a transmission manner, and the lock cylinder 9 is connected in a transmission manner to the transmission rod 4. Operating the handle 8 can drive the lock cylinder 9 to move. Under the drive of the lock cylinder 9, the transmission rod 4 slides up and down relative to the door and window sash 1.

[0068] like Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment, the lock cylinder 9 has a transmission block 91, and the transmission rod 4 has a transmission groove 42. The transmission block 91 and the transmission groove 42 are engaged. The operating handle 8 can drive the transmission block 91 to move up and down, thereby driving the transmission rod 4 to move up and down synchronously with the transmission block 91 through the engagement between the transmission block 91 and the transmission groove 42.

[0069] In summary, the lifting door and window system disclosed in this utility model can bring at least the following beneficial technical effects: (1) The elastic element 5 applies an upward elastic force to the transmission rod 4. During the process of the transmission rod 4 moving downward to make the door and window sash 1 sink to contact the track 2, the elastic element 5 can play a buffering role, which can effectively prevent the bracket 31 or the bottom of the door and window sash 1 from directly and violently impacting the track 2. (2) During the process of moving the transmission rod 4 upward, the elastic force can assist the transmission rod 4 to move upward, which can save effort. This makes it easier and more convenient for users to operate the lifting of the door and window sash 1, and improves the user experience. (3) By adjusting the elastic force of the elastic element 5 through the adjustment structure 6, the strength and degree of buffering can be precisely controlled according to the specific door and window system parameters and usage conditions; (4) The transmission rod 4, the adjustment structure 6, the elastic element 5 and other components can be integrated in an orderly manner around the vertical slide groove 13. This integrated design is conducive to the modular production and installation of the entire lifting door and window system. The relative positional relationship between the components is clearer, reducing errors and debugging difficulties during the installation process, and improving production efficiency and installation quality. (5) The first fastener 66 passes through the groove sidewall 132 and the fixed seat 63. The first fastener 66 is located outside the sliding trajectory of the transmission rod 4, which avoids the interference of the first fastener 66 on the sliding of the transmission rod 4. When the transmission rod 4 slides on the bottom wall 131 of the vertical groove 13, it will not collide or rub against the first fastener 66, ensuring that the transmission rod 4 can move smoothly along the predetermined trajectory.

[0070] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A lifting door and window system, characterized in that, include: Door and window panels (1); Track (2) is located below the door / window sash (1); The transmission rod (4) slides up and down on the door and window sash (1); The lifting pulley structure (3) includes a bracket (31), a pulley assembly (32), and a transmission assembly (33). The bracket (31) is located at the bottom of the door / window sash (1), and the pulley assembly (32) is movably located on the bracket (31). The transmission assembly (33) is tractively connected between the transmission rod (4) and the pulley assembly (32). When the transmission rod (4) moves upward, the pulley assembly (32) moves downward relative to the bracket (31) to contact the track (2) under the drive of the transmission assembly (33). When the transmission rod (4) moves downward, the pulley assembly (32) moves upward relative to the bracket (31) to separate from the track (2) under the drive of the transmission assembly (33), and the bottom of the bracket (31) or the door / window sash (1) contacts the track (2). An elastic element (5) is connected between the door / window sash (1) and the transmission rod (4), and the elastic element (5) is configured to apply an upward elastic force to the transmission rod (4).

2. The lifting door and window system according to claim 1, characterized in that, The lifting door and window system also includes an adjustment structure (6), which is connected to the elastic element (5). The adjustment structure (6) is used to adjust the elastic force applied by the elastic element (5) to the transmission rod (4).

3. A lifting door and window system according to claim 2, characterized in that, The adjustment structure (6) includes an adjustment rod (61), a movable seat (62), and a fixed seat (63). The fixed seat (63) is fixedly mounted on the door / window sash (1). The first end of the elastic element (5) is connected to the movable seat (62), and the second end of the elastic element (5) is connected to the transmission rod (4). The adjustment rod (61) is connected between the fixed seat (63) and the movable seat (62). The adjustment rod (61) is used to adjust the position of the movable seat (62) relative to the fixed seat (63) in the vertical direction.

4. A lifting door and window system according to claim 3, characterized in that, The door / window sash (1) has a vertical side frame (12), the vertical side frame (12) is provided with a vertical sliding groove (13), the transmission rod (4) slides in the vertical sliding groove (13), and the fixing seat (63) is fixedly provided in the vertical sliding groove (13).

5. A lifting door and window system according to claim 4, characterized in that, The adjustment structure (6) further includes a first fastener (66). The vertical slide (13) has a bottom wall (131) and side walls (132) connected to both sides of the bottom wall (131). The transmission rod (4) is slidably connected to the bottom wall (131). The first fastener (66) passes through the side wall (132) and the fixed seat (63). The first fastener (66) is located outside the sliding trajectory of the transmission rod (4).

6. A lifting door and window system according to claim 3, characterized in that, The adjustment structure (6) further includes a worm gear (64) and a worm (65). The worm (65) is rotatably mounted on the fixed seat (63). The worm (65) and the adjustment rod (61) are coaxial and threaded together. The worm gear (64) and the worm (65) are meshed together. One end of the adjustment rod (61) is fixedly mounted on the movable seat (62).

7. A lifting door and window system according to claim 6, characterized in that, The adjustment structure (6) further includes a limiting member (67), which is disposed on the fixed base (63). The limiting member (67) can move between a first position and a second position. When in the first position, the limiting member (67) abuts against the side wall of the worm (65) to restrict the rotation of the worm (65). When in the second position, the limiting member (67) and the worm (65) separate to release the rotation restriction of the worm (65).

8. A lifting door and window system according to claim 7, characterized in that, The door / window sash (1) is provided with a hollowed-out groove (14), which is used to expose the worm gear (64) and the limiting member (67).

9. A lifting door and window system according to claim 6, characterized in that, The adjustment structure (6) further includes a limiting ring (68), which is sleeved on the adjustment rod (61). When the adjustment rod (61) moves to the lowest or highest position relative to the worm (65), the limiting ring (68) and the worm (65) abut against each other to limit the movement of the adjustment rod (61).

10. A lifting door and window system according to claim 6, characterized in that, The fixed base (63) includes a first base body (631) and a second base body (632) connected to each other. The worm gear (64) is rotatably disposed on the first base body (631), and the worm (65) is rotatably disposed on the second base body (632).

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