Linkage assembly and linkage door and window system comprising same

Abstract

This utility model discloses a linkage component and a linkage door and window system including the same. The linkage component includes: a first pulley; a second pulley, disposed opposite to the first pulley, the first and second pulleys being respectively disposed at both ends of a second door / window sash; a first transmission belt, wound around the first pulley, the first transmission belt having two first free ends, the two first free ends being respectively fixed to the first and third door / window sashes, the two first free ends being capable of simultaneously moving to a position opposite to each other and adjacent to the second pulley; and a second transmission belt, wound around the second pulley, the second transmission belt having two second free ends, the two second free ends being respectively fixed to the first and third door / window sashes, the two second free ends being capable of simultaneously moving to a position opposite to each other and adjacent to the first pulley. This overcomes the deficiency of existing linkage door and window systems that can only open and fold in one direction, simultaneously realizing the opening and folding operations of the door / window sashes in two directions.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window hardware accessories, specifically relating to linkage components and linkage door and window systems including them. Background Technology

[0002] Linked door and window systems, as a common door and window structure, are widely used in various building applications, providing people with a convenient way to open and close doors and windows. Existing linked door and window systems mainly consist of linkage components and multiple door and window sashes. The linkage components are positioned between the multiple door and window sashes to achieve interlocking functionality. Driven by the linkage components, the multiple door and window sashes can be opened to achieve a closed state, or folded to achieve an open state.

[0003] In existing linked door and window systems, multiple door and window sashes include at least a first, second, and third door and window sash. The linkage assembly includes at least a drive belt, two pulleys, and two connectors. The two pulleys are respectively located at both ends of the second door and window sash, the drive belt is wrapped around the two pulleys in a closed loop, and the two connectors are fixed to the drive belt. Furthermore, one connector is fixed to the front end of the first door and window sash, and the other connector is fixed to the rear end of the third door and window sash. However, this structure has significant limitations. Because the drive belt is closed and the installation positions of the two connectors are restricted, the aforementioned multiple door and window sashes can only be unfolded in a first direction and folded only in the opposite direction. This unidirectional operation greatly limits the flexibility and convenience of the linked door and window system, and cannot meet the diverse needs of users for door and window operation in different scenarios. Utility Model Content

[0004] In order to overcome at least one of the defects mentioned above in the prior art, the purpose of this utility model is to provide a linkage component and a linkage door and window system including the same, which can overcome the defect that the linkage door and window system in the prior art can only be opened and folded in one direction, and at the same time realize the opening operation of the door and window sash in two directions and the folding operation in two directions, thereby improving the flexibility and convenience of the linkage door and window system.

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

[0006] A linkage component for linking a door and window system, the system comprising a first door / window sash, a second door / window sash, and a third door / window sash, the second door / window sash being located between the first and third door / window sashes. The linkage component comprises: a first pulley; a second pulley, disposed opposite to the first pulley, the first and second pulleys being respectively disposed at both ends of the second door / window sash; a first transmission belt, wound around the first pulley, the first transmission belt having two first free ends, the two first free ends being respectively fixed to the first and third door / window sashes, the two first free ends being capable of simultaneously moving to positions opposite each other and adjacent to the second pulley; and a second transmission belt, wound around the second pulley, the second transmission belt having two second free ends, the two second free ends being respectively fixed to the first and third door / window sashes, the two second free ends being capable of simultaneously moving to positions opposite each other and adjacent to the first pulley.

[0007] As an optional implementation, the linkage component further includes two first connectors and two second connectors. The two first connectors are connected one-to-one to the two first free ends, and the two first connectors are respectively used to fix the first door / window sash and the third door / window sash. The two second connectors are connected one-to-one to the two second free ends, and the two second connectors are respectively used to fix the first door / window sash and the third door / window sash.

[0008] As an optional implementation, the first connector is provided with a first adjustment hole, and the first free end is fixed in the first adjustment hole; the second connector is provided with a second adjustment hole, and the second free end is fixed in the second adjustment hole.

[0009] As an optional implementation, the linkage component further includes a first box and a second box, the first box and the second box being respectively used to fix to both ends of the second door / window sash, the first pulley being disposed in the first box and the second pulley being disposed in the second box.

[0010] As an optional implementation, the position of the first pulley relative to the first housing is adjustable, and / or the position of the second pulley relative to the second housing is adjustable.

[0011] As an optional implementation, the position of the first pulley relative to the first housing is adjustable. The first pulley includes a first wheel seat, a first wheel body, and a first adjusting rod. The first wheel body is rotatably disposed on the first wheel seat, and the first wheel seat is disposed on the first housing. The first adjusting rod is rotatably disposed on the first housing and threadedly connected to the first wheel seat. Rotating the first wheel seat can adjust the position of the first wheel seat relative to the first housing.

[0012] As an optional implementation, the first box body is provided with a first guide groove extending axially along the first adjusting rod, and the first wheel seat has a first guide wall, which is slidably disposed in the first guide groove.

[0013] As an optional implementation, a first connecting hole is provided on one side of the first wheel seat, and the linkage component further includes a first fastener, which is connected to the first connecting hole, and one end of the first fastener abuts against the first transmission belt.

[0014] As an optional implementation, the linkage component further includes an adjustable telescopic rod, with the first box and the second box respectively connected to both ends of the telescopic rod. The relative distance between the first box and the second box can be adjusted by adjusting the length of the telescopic rod.

[0015] As an optional implementation, the linkage component further includes two third boxes, which are respectively used to fix the first door / window sash and the third door / window sash. Each third box is provided with a first insertion slot, and the two first connectors are respectively inserted into the first insertion slots of the two third boxes.

[0016] This utility model also provides a linkage door and window system, including the linkage components as described in any of the above embodiments, and further including a first door and window sash, a second door and window sash and a third door and window sash, wherein the first door and window sash, the second door and window sash and the third door and window sash can be unfolded to realize closing, and the first door and window sash, the second door and window sash and the third door and window sash can be folded to realize opening.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The linkage component provided in this application embodiment, during operation, when multiple door and window sashes are unfolded or folded along a first direction, one of the first and second transmission belts can act as the driving belt, and the other as the driven belt, to collaboratively complete the unfolding or folding action of the door and window sashes. Similarly, when multiple door and window sashes are unfolded or folded along a second direction, one of the first and second transmission belts can act as the driving belt, and the other as the driven belt. This design allows multiple door and window sashes to be unfolded regardless of whether they are pushed or pulled in the first or second direction; and also allows them to be folded regardless of whether they are pushed or pulled in the first or second direction. This greatly improves the operational flexibility and convenience of the linkage door and window system, meeting the diverse needs of users for door and window operation in different scenarios. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a top view of the linkage component (telescopic rod, first box and second box not shown) according to an embodiment of this application;

[0021] Figure 2 This is an exploded structural diagram of the linkage component (telescopic rod, first box and second box not shown) according to an embodiment of this application;

[0022] Figure 3 This is an exploded view of the linkage component according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the first pulley and the first housing according to an embodiment of this application;

[0024] Figure 5 This is a structural schematic diagram of the linkage component and the second door / window sash during the assembly process according to an embodiment of this application;

[0025] Figure 6 This is a structural schematic diagram of the third box body, fourth box body, first connector and second connector in the assembly process according to an embodiment of this application;

[0026] Figure 7 This is a side view of the linkage door and window system according to an embodiment of this application;

[0027] Figure 8 This is a three-dimensional structural diagram of the linkage door and window system according to an embodiment of this application.

[0028] Explanation of key figure labels:

[0029] 1. First pulley; 11. First wheel seat; 111. First guide wall; 112. First connecting hole; 12. First wheel body; 13. First adjusting rod; 2. Second pulley; 3. First transmission belt; 31. First free end; 4. Second transmission belt; 41. Second free end; 5. First connecting piece; 51. First adjusting hole; 6. Second connecting piece; 61. Second adjusting hole; 7. First box body; 71. First guide groove; 8. Second box body; 9. Telescopic rod; 91. First slide rod; 92. Second slide rod; 10. First support; 20. Second support; 30. Third box body; 301. First insertion groove; 40. Fourth box body; 401. Insertion groove; 50. First fastener; 100. First door / window sash; 200. Second door / window sash; 300. Third door / window sash; 400. Hanging rod; 500. Pulley. 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 5 This application discloses a linkage component for linking a door and window system. The linkage door and window system includes a first door / window sash 100, a second door / window sash 200, and a third door / window sash 300. The second door / window sash 200 is located between the first door / window sash 100 and the second door / window sash 200. The linkage component includes a first pulley 1, a second pulley 2, a first transmission belt 3, a second transmission belt 4, two first transmission belts 3, and two second transmission belts 4. The second pulley 2 and the first pulley 1 are arranged opposite to each other, and the first pulley 1 and the second pulley 2 are respectively arranged at both ends of the second door / window sash 200. The first transmission belt 3 is wound around the first pulley 1. The first transmission belt 3 has two first free ends 31, which are respectively used to fix the first door / window sash 100 and the third door / window sash 300. The two first free ends 31 can move simultaneously to a position opposite to each other and close to the second pulley 2. The second transmission belt 4 is wound around the second pulley 2. The second transmission belt 4 has two second free ends 41, which are respectively used to fix the first door / window sash 100 and the third door / window sash 300. The two second free ends 41 can move simultaneously to a position opposite to each other and close to the first pulley 1.

[0037] Specifically, if the two first free ends 31 move to a position opposite to each other and close to the second pulley 2, and the two second free ends 41 move to a position opposite to each other and close to the first pulley 1, then the first door and window sash 100, the second door and window sash 200 and the third door and window sash 300 move to the folding position to open the door;

[0038] Specifically, if one of the two first free ends 31 moves to a position adjacent to the first pulley 1, and the other of the two first free ends 31 moves to a position away from the first pulley 1 and the second pulley 2, and one of the two second free ends 41 moves to a position adjacent to the second pulley 2, and the other of the two second free ends 41 moves to a position away from the first pulley 1 and the second pulley 2, then the first door / window sash 100, the second door / window sash 200, and the third door / window sash 300 move to the unfolded position to achieve the closing of the door.

[0039] The linkage component provided in this application embodiment, during operation, when multiple door and window sashes are unfolded or folded along a first direction, one of the first transmission belt 3 and the second transmission belt 4 can act as the driving belt, and the other as the driven belt, to collaboratively complete the unfolding or folding action of the door and window sashes. Similarly, when multiple door and window sashes are unfolded or folded along a second direction, one of the first transmission belt 3 and the second transmission belt 4 can act as the driving belt, and the other as the driven belt. This design allows multiple door and window sashes to be unfolded regardless of whether they are pushed or pulled in the first or second direction; and also allows them to be folded regardless of whether they are pushed or pulled in the first or second direction. This greatly improves the operational flexibility and convenience of the linkage door and window system, meeting the diverse needs of users for door and window operation in different scenarios.

[0040] For example, in one embodiment, when multiple door and window sashes are unfolded along a first direction, the first transmission belt 3 acts as the driving belt and the second transmission belt 4 acts as the driven belt; when multiple door and window sashes are unfolded along a second direction, the second transmission belt 4 acts as the driving belt and the first transmission belt 3 acts as the driven belt; when multiple door and window sashes are folded along the first direction, the first transmission belt 3 acts as the driving belt and the second transmission belt 4 acts as the driven belt; when multiple door and window sashes are folded along the second direction, the second transmission belt 4 acts as the driving belt and the first transmission belt 3 acts as the driven belt.

[0041] It is understandable that the first and second directions mentioned above are two opposite straight line directions.

[0042] like Figure 2 and Figure 3 As shown, the linkage assembly also includes two first connecting members 5 and two second connecting members 6. The two first connecting members 5 are connected one-to-one to the two first free ends 31, and are respectively used to fix the first door / window sash 100 and the third door / window sash 300; the two second connecting members 6 are connected one-to-one to the two second free ends 41, and are respectively used to fix the first door / window sash 100 and the third door / window sash 300. Thus, the first connecting members 5 are responsible for reliably connecting the two first free ends 31 to the first door / window sash 100 and the third door / window sash 300, and the second connecting members 6 are responsible for reliably connecting the two second free ends 41 to the first door / window sash 100 and the third door / window sash 300, thereby accurately and reliably transmitting force to the first door / window sash 100 and the third door / window sash 300.

[0043] like Figure 2 and Figure 3As shown, in one embodiment, the first connecting member 5 is provided with a first adjusting hole 51, and a first free end 31 is fixed inside the first adjusting hole 51. The tension of the first transmission belt 3 can be adjusted by adjusting the position of the first free end 31 relative to the first adjusting hole 51. The second connecting member 6 is provided with a second adjusting hole 61, and a second free end 41 is fixed inside the second adjusting hole 61. The tension of the second transmission belt 4 can be adjusted by adjusting the position of the second free end 41 relative to the second adjusting hole 61. Thus, it can be understood that during the operation of the linkage door and window system, the tension of the transmission belt plays a key role in the stability and reliability of the transmission. When the first transmission belt 3 or the second transmission belt 4 is too loose, slippage is likely to occur during transmission, causing the first connecting member 5 or the second connecting member 6 to be unable to accurately drive the first door and window sash 100 and the third door and window sash 300 to move, resulting in unsmooth and inaccurate opening or folding movements of the door and window sashes, and even problems such as jamming or inability to open and close normally. In this embodiment, by providing a first adjustment hole 51 in the first connector 5 and fixing the first free end 31 therein, and providing a second adjustment hole 61 in the second connector 6 and fixing the second free end 41 therein, the position of the first free end 31 relative to the first adjustment hole 51 and the position of the second free end 41 relative to the second adjustment hole 61 can be easily adjusted, thereby adjusting the tension of the first transmission belt 3 and the second transmission belt 4. After adjusting the transmission belt to a suitable tension, slippage can be effectively avoided, ensuring stable and reliable transmission between the transmission belt and the pulley and between the transmission belt and the connector, thus ensuring the stability and reliability of the overall operation of the linkage door and window system, and enabling the door and window sashes to open and fold accurately as expected.

[0044] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the linkage assembly further includes a first housing 7 and a second housing 8, which are respectively used to fix the first housing 7 and the second housing 8 to both ends of the second door / window sash 200. A first pulley 1 is disposed in the first housing 7, and a second pulley 2 is disposed in the second housing 8. Thus, the first housing 7 and the second housing 8 provide stable support and fixing structures for the first pulley 1 and the second pulley 2. During the operation of the linkage assembly, the pulleys need to withstand the tension and friction transmitted by the drive belt. If the pulleys are not securely fixed, problems such as shaking and displacement may easily occur, affecting the accuracy and stability of the transmission, and may even lead to the drive belt falling off or being damaged. The first housing 7 and the second housing 8 can firmly fix the pulleys to both ends of the second door / window sash 200, reducing the vibration and displacement of the pulleys during operation, ensuring good cooperation between the pulleys and the drive belt, thereby improving the stability and reliability of the linkage assembly and extending the service life of the assembly.

[0045] In one embodiment, the linkage component is located on the upper side of the second door / window sash 200, and both the first box 7 and the second box 8 are also provided with a hanger 400, which can be connected to the pulley 500 in the upper track.

[0046] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the position of the first pulley 1 relative to the first housing 7 is adjustable, and the tension of the first transmission belt 3 can be adjusted by adjusting the position of the first pulley 1 relative to the first housing 7; the position of the second pulley 2 relative to the second housing 8 is adjustable, and the tension of the second transmission belt 4 can be adjusted by adjusting the position of the second pulley 2 relative to the second housing 8. Thus, installers or maintenance personnel can adjust the transmission belt to the optimal tension according to actual operating conditions, ensuring stable and reliable frictional transmission between the transmission belt and the pulleys, thereby guaranteeing the transmission performance of the linkage components and enabling the door and window sashes to open and fold accurately and smoothly according to preset actions.

[0047] It should be noted that in some other embodiments, only the position of the first pulley 1 relative to the first housing 7 may be adjustable, or only the position of the second pulley 2 relative to the second housing 8 may be adjustable.

[0048] like Figure 3 and Figure 4 As shown, in one embodiment, the first pulley 1 includes a first wheel seat 11, a first wheel body 12, and a first adjusting rod 13. The first wheel body 12 is rotatably mounted on the first wheel seat 11, and the first wheel seat 11 is mounted on the first housing 7. The first adjusting rod 13 is rotatably mounted on the first housing 7 and threadedly connected to the first wheel seat 11. Rotating the first wheel seat 11 adjusts its position relative to the first housing 7. Thus, the design of the first adjusting rod 13 being rotatably mounted on the first housing 7 and threadedly connected to the first wheel seat 11 allows for fine adjustment of the position of the first wheel seat 11 relative to the first housing 7 simply by rotating the first adjusting rod 13. Due to the self-locking and precise displacement control characteristics of the threaded drive, the operator can very accurately control the movement distance of the first wheel seat 11, thereby precisely adjusting the tension of the first transmission belt 3. Whether it is fine-tuning to accommodate the natural elongation of the transmission belt due to long-term use, or making larger adjustments to address installation errors or different working conditions, it can be easily achieved, greatly improving the flexibility and accuracy of adjustment.

[0049] In one embodiment, the second pulley 2 includes a second pulley seat (not labeled), a second pulley body (not labeled), and a second adjusting rod (not labeled). The second pulley body is rotatably mounted on the second pulley seat, which is mounted on the second housing 8. The second adjusting rod is rotatably mounted on the second housing 8 and threadedly connected to the second pulley seat. Rotating the second pulley seat adjusts its position relative to the second housing 8. Thus, the design of the second adjusting rod rotatably mounted on the second housing 8 and threadedly connected to the second pulley seat allows for fine adjustment of the position of the second pulley seat relative to the second housing 8 simply by rotating the second adjusting rod. Due to the self-locking and precise displacement control characteristics of the threaded drive, the operator can very accurately control the movement distance of the second pulley seat, thereby precisely adjusting the tension of the second transmission belt 4. Whether it's fine-tuning to accommodate the natural elongation of the transmission belt due to long-term use, or making larger adjustments to address installation errors or different working conditions, it can be easily achieved, greatly improving the flexibility and accuracy of adjustment.

[0050] like Figure 3 and Figure 4 As shown, in one embodiment, the first housing 7 is provided with a first guide groove 71 extending axially along the first adjusting rod 13, and the first wheel seat 11 has a first guide wall 111, which is slidably disposed in the first guide groove 71. Thus, the first guide groove 71 extends axially along the first adjusting rod 13, and the first guide wall 111 is slidably disposed therein. This design provides precise linear guidance for the movement of the first wheel seat 11 relative to the first housing 7. When the position of the first wheel seat 11 is adjusted by rotating the first adjusting rod 13, the first guide wall 111 can only slide axially within the first guide groove 71, effectively preventing non-linear movements such as offset, wobbling, or rotation of the first wheel seat 11 during movement. This ensures that the first wheel seat 11 moves accurately in a predetermined direction with each adjustment, thereby precisely changing the tension of the first transmission belt 3, improving the accuracy and reliability of the adjustment, and enabling the transmission system to always maintain a good working condition.

[0051] In one embodiment, the second housing 8 is provided with a second guide groove (not labeled) extending axially along the second adjusting rod, and the second wheel seat has a second guide wall (not labeled), which is slidably disposed within the second guide groove. Thus, the second guide groove extends axially along the second adjusting rod, and the second guide wall is slidably disposed therein. This design provides precise linear guidance for the movement of the second wheel seat relative to the second housing 8. When the second adjusting rod is rotated to adjust the position of the second wheel seat, the second guide wall can only slide axially within the second guide groove, effectively preventing non-linear movements such as offset, wobbling, or rotation of the second wheel seat during movement. This ensures that each adjustment allows the second wheel seat to move accurately in a predetermined direction, thereby precisely changing the tension of the second transmission belt 4, improving the accuracy and reliability of the adjustment, and enabling the transmission system to always maintain a good working condition.

[0052] like Figure 3 and Figure 4 As shown, in one embodiment, a first connecting hole 112 is provided on one side of the first wheel seat 11. The linkage assembly also includes a first fastener 50, which is connected to the first connecting hole 112, and one end of the first fastener 50 presses against the first transmission belt 3. Thus, by adjusting the pressure of the first fastener 50 on the first transmission belt 3, the first transmission belt 3 can be made to fit more tightly against the first wheel body 12. During the operation of the linkage assembly, the friction between the transmission belt and the pulley is crucial for power transmission. When the first transmission belt 3 fits more tightly against the first wheel body 12, the friction between them increases, effectively reducing slippage during transmission and ensuring that power can be transmitted more efficiently and accurately from the first wheel body 12 to the first transmission belt 3. This improves the transmission efficiency of the entire linkage assembly, making the opening and folding of doors and windows smoother and faster.

[0053] In one embodiment, a second connecting hole is provided on one side of the second wheel seat. The linkage assembly also includes a second fastener (not labeled in the figure), which is connected to the second connecting hole, and one end of the second fastener abuts against the second transmission belt 4. Thus, by adjusting the pressure of the second fastener on the second transmission belt 4, the second transmission belt 4 can be made to fit more tightly against the second wheel body. During the operation of the linkage assembly, the friction between the transmission belt and the pulley is crucial for power transmission. When the second transmission belt 4 fits more tightly against the second wheel body, the friction between them increases, effectively reducing slippage during transmission and ensuring that power can be transmitted more efficiently and accurately from the second wheel body to the second transmission belt 4. This improves the transmission efficiency of the entire linkage assembly, making the opening and folding of doors and windows smoother and faster.

[0054] like Figure 3 As shown, in one embodiment, the linkage component further includes an adjustable telescopic rod 9. A first housing 7 and a second housing 8 are respectively connected to both ends of the telescopic rod 9. The relative distance between the first housing 7 and the second housing 8 can be adjusted by adjusting the length of the telescopic rod 9, thereby adapting to second door / window sashes 200 of different sizes. In practical applications, door and window sizes vary, and different buildings or spaces have different requirements for door and window sizes. The adjustable telescopic rod 9 design in this embodiment allows the linkage component to flexibly adapt to second door / window sashes 200 of various sizes. By simply adjusting the length of the telescopic rod 9, the relative distance between the first housing 7 and the second housing 8 can be changed, allowing the linkage component to match door / window sashes of different widths or lengths.

[0055] like Figure 3As shown, in one embodiment, the telescopic rod 9 includes a first slide rod 91 and a second slide rod 92 that are slidably connected, a first housing 7 is disposed on the first slide rod 91, and a second housing 8 is disposed on the second slide rod 92.

[0056] like Figure 6 , Figure 7 and Figure 8 As shown, in one embodiment, the linkage assembly further includes two third housings 30, which are respectively fixed to the first door / window sash 100 and the third door / window sash 300. Each third housing 30 is provided with a first insertion slot 301, and two first connecting members 5 are respectively inserted into the first insertion slots 301 of the two third housings 30. Thus, in the first aspect, the two third housings 30 are respectively fixed to the first door / window sash 100 and the third door / window sash 300, providing a stable installation foundation for the entire linkage assembly; the first connecting members 5 are inserted into the first insertion slots 301 of the third housings 30, and this insertion method forms a reliable mechanical connection between the first connecting members 5 and the third housings 30; the first insertion slots 301 can accurately position and constrain the first connecting members 5, preventing the first connecting members 5 from shaking, shifting, or falling off during transmission, thereby ensuring the structural stability of the linkage assembly during operation and ensuring that power can be transmitted stably and reliably between the components. Secondly, the first insertion slot 301 on the third housing 30 provides clear guidance and positioning for the installation of the first connector 5. When installing the linkage component, the operator only needs to accurately insert the first connector 5 into the first insertion slot 301 to complete the initial connection between the first connector 5 and the third housing 30, without the need for complex alignment and adjustment operations. This standardized installation method greatly simplifies the installation process and improves installation efficiency.

[0057] like Figure 6 , Figure 7 and Figure 8 As shown, in one embodiment, the linkage component further includes two fourth boxes 40, which are respectively used to fix the first door / window sash 100 and the third door / window sash 300. Each fourth box 40 is provided with a second insertion slot 401, and two second connectors 6 are respectively inserted into the second insertion slots of the two fourth boxes 40.

[0058] In one embodiment, the first box 7, the second box 8, the third box 30 and the fourth box 40 are respectively inserted into the profile groove of the corresponding door and window sash frame profile.

[0059] like Figure 3 and Figure 5As shown, in one embodiment, the linkage assembly further includes a first bracket 10 and a second bracket 20. The first bracket 10 is disposed on the second housing 8, and two first connecting members 5 are detachably connected to the first bracket 10. After the two first connecting members 5 are detached from the first bracket 10, one first connecting member 5 is used to fix to the first door / window sash 100, and the other first connecting member 5 is used to fix to the third door / window sash 300. The second bracket 20 is disposed on the first housing 7, and two second connecting members 6 are detachably connected to the second bracket 20. After the two second connecting members 6 are detached from the second bracket 20, one second connecting member 6 is used to fix to the first door / window sash 100, and the other second connecting member 6 is used to fix to the third door / window sash 300. In this way, the linkage assembly can be shipped as a whole, and the installer does not need to select, assemble, and perform preliminary debugging of numerous scattered components on-site. In traditional installation methods, multiple components such as the first housing 7, the second housing 8, the first connector 5, and the second connector 6 may need to be prepared separately, and their models and specifications must be matched, making the process cumbersome and prone to errors. In this embodiment, the linkage assembly is delivered as a complete unit. Installers only need to focus on installing it as a whole onto the second door / window sash 200, greatly simplifying the pre-installation preparation work and reducing installation steps and operational difficulty. Specifically, after installing the first housing 7 and the second housing 8 onto the second door / window sash 200, the two first connectors 5 are removed from the first bracket 10, and the two second connectors 6 are removed from the second bracket 20. Finally, the two first connectors 5 are installed onto the first door / window sash 100 and the third door / window sash 300, respectively, and the two second connectors 6 are installed onto the first door / window sash 100 and the third door / window sash 300, respectively. Thus, the entire installation process is simple and easy to understand, requiring minimal skill from installers. No complex training is needed to assemble the linkage door / window system, significantly reducing installation time and labor costs and improving installation efficiency.

[0060] like Figure 3 and Figure 5As shown, in one embodiment, the first bracket 10 is detachably connected to the second housing 8, and the second bracket 20 is detachably connected to the first housing 7. Thus, after removing the two first connecting pieces 5 from the first bracket 10 and then installing them onto the first door / window sash 100 and the third door / window sash 300 respectively, the first bracket 10 can be further removed from the second housing 8. Similarly, after removing the two second connecting pieces 6 from the second bracket 20 and then installing them onto the first door / window sash 100 and the third door / window sash 300 respectively, the second bracket 20 can be further removed from the first housing 7. This removal of the first bracket 10 from the second housing 8 and the second bracket 20 from the first housing 7 frees up space, which not only simplifies the layout around the doors and windows and avoids unnecessary space occupation by components, but also prevents the first bracket 10 and the second bracket 20 from interfering with the normal operation of the doors and windows or surrounding items during subsequent use.

[0061] like Figure 7 and Figure 8 As shown, this application also provides a linked door and window system, including the linked components as described in any of the previous embodiments, and further including a first door / window sash 100, a second door / window sash 200, and a third door / window sash 300. This linked door and window system has the advantages of the linked components as described in any of the previous embodiments, which will not be repeated here.

[0062] 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 linkage component for linking a door and window system, the linkage door and window system comprising a first door / window sash (100), a second door / window sash (200), and a third door / window sash (300), wherein the second door / window sash (200) is located between the first door / window sash (100) and the second door / window sash (200), characterized in that, The linkage component includes: First pulley (1); The second pulley (2) is arranged opposite to the first pulley (1), and the first pulley (1) and the second pulley (2) are respectively arranged at both ends of the second door and window sash (200); A first transmission belt (3) is wound around the first pulley (1). The first transmission belt (3) has two first free ends (31). The two first free ends (31) are respectively used to fix the first door and window sash (100) and the third door and window sash (300). The two first free ends (31) can move simultaneously to a position opposite to each other and adjacent to the second pulley (2). The second transmission belt (4) is wound around the second pulley (2). The second transmission belt (4) has two second free ends (41). The two second free ends (41) are respectively used to fix the first door and window sash (100) and the third door and window sash (300). The two second free ends (41) can move simultaneously to a position opposite to each other and adjacent to the first pulley (1).

2. The linkage assembly of claim 1, wherein, The linkage component also includes two first connectors (5) and two second connectors (6). The two first connectors (5) are connected one-to-one to the two first free ends (31), and the two first connectors (5) are respectively used to fix the first door and window sash (100) and the third door and window sash (300). The two second connectors (6) are connected one-to-one to the two second free ends (41), and the two second connectors (6) are respectively used to fix the first door and window sash (100) and the third door and window sash (300).

3. The linkage assembly of claim 2, wherein, The first connector (5) is provided with a first adjustment hole (51), and the first free end (31) is fixed in the first adjustment hole (51); the second connector (6) is provided with a second adjustment hole (61), and the second free end (41) is fixed in the second adjustment hole (61).

4. The linkage assembly of claim 1, wherein, The linkage component also includes a first box (7) and a second box (8), the first box (7) and the second box (8) being fixed to both ends of the second door / window sash (200), the first pulley (1) being disposed in the first box (7), and the second pulley (2) being disposed in the second box (8).

5. The linkage assembly of claim 4, wherein, The position of the first pulley (1) relative to the first housing (7) is adjustable, and / or the position of the second pulley (2) relative to the second housing (8) is adjustable.

6. The linkage assembly of claim 5, wherein, The position of the first pulley (1) relative to the first housing (7) is adjustable. The first pulley (1) includes a first wheel seat (11), a first wheel body (12), and a first adjusting rod (13). The first wheel body (12) is rotatably disposed on the first wheel seat (11), and the first wheel seat (11) is disposed on the first housing (7). The first adjusting rod (13) is rotatably disposed on the first housing (7) and threadedly connected to the first wheel seat (11). Rotating the first wheel seat (11) can adjust the position of the first wheel seat (11) relative to the first housing (7).

7. The linkage assembly of claim 6, wherein, The first wheel seat (11) has a first connecting hole (112) on one side. The linkage component also includes a first fastener (50), which is connected to the first connecting hole (112) and one end of the first fastener (50) presses against the first transmission belt (3).

8. The linkage assembly of claim 4, wherein, The linkage component also includes a telescopic rod (9) with adjustable length. The first box (7) and the second box (8) are respectively connected to the two ends of the telescopic rod (9). The relative distance between the first box (7) and the second box (8) can be adjusted by adjusting the length of the telescopic rod (9).

9. The linkage assembly of claim 2 or 3, wherein, The linkage assembly also includes two third boxes (30), which are respectively used to fix the first door and window sash (100) and the third door and window sash (300). Each third box (30) is provided with a first insertion slot (301), and the two first connectors (5) are respectively inserted into the first insertion slots (301) of the two third boxes (30).

10. A coordinated door and window system, characterized by The system includes the linkage component as described in any one of claims 1-9, and further includes a first door / window sash (100), a second door / window sash (200), and a third door / window sash (300), wherein the first door / window sash (100), the second door / window sash (200), and the third door / window sash (300) are capable of unfolding to close the door, and the first door / window sash (100), the second door / window sash (200), and the third door / window sash (300) are capable of folding to open the door.

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