Linkage hanging rail and linkage door and window thereof

Abstract

The present application provides a linkage overhead rail and a linkage door, the linkage overhead rail comprising a plurality of overhead rail units, a plurality of pulley assemblies and a linkage structure, the overhead rail unit suspending a track extending from the middle to both sides, so that a transmission cavity is formed between two adjacent overhead rail units; the pulley assembly sliding on the corresponding track, the plurality of pulley assemblies comprising a first pulley assembly for connecting a movable leaf and a second pulley assembly for connecting a linkage leaf; the linkage structure being disposed in the transmission cavity and connecting the first pulley assembly and the second pulley assembly, for linkage of the movable leaf and the linkage leaf. The pulley assembly and the linkage structure are completely accommodated in the overhead rail unit, facilitating the assembly of the overhead rail pulley structure and the linkage structure in advance, and allowing the installation profile between the overhead rail unit and the leaf to be more beautiful.

Description

Technical Field

[0001] This invention belongs to the technical field of door and window hardware, and particularly relates to a linkage hanging rail and its linkage to doors and windows. Background Technology

[0002] Multi-link sliding doors and windows are a common type of door and window system. They generally consist of two movable sashes and several linked sashes. Each sash is equipped with a corresponding hanging rail pulley structure, and multiple sashes can be opened or closed simultaneously through a special linkage structure.

[0003] The hanging rail profile of linked doors and windows is generally designed as an inverted U-shape, with the pulley assembly suspended and sliding on the hanging rail profile. The linkage structure requires the connection between the two hanging rail pulley assemblies to pass through the joint between the hanging rail profile and the sash body. This method inevitably results in a gap between the hanging rail and the sash body, which is not very aesthetically pleasing. Summary of the Invention

[0004] The purpose of this invention is to provide a linkage rail for rationally arranging the rail unit, pulley assembly, and linkage structure to reduce the gap between the rail unit and the fan body.

[0005] The first aspect of the present invention discloses a linkage rail, comprising a plurality of rail units, a plurality of pulley assemblies, and a linkage structure. Each rail unit is suspended by a track extending from the center to both sides, forming a transmission cavity between adjacent rail units. Each pulley assembly slides on a corresponding track. The plurality of pulley assemblies includes a first pulley assembly for connecting a movable fan body and a second pulley assembly for connecting a linked fan body. The linkage structure is placed within the transmission cavity and connects the first pulley assembly and the second pulley assembly, for linkage between the movable fan body and the linked fan body.

[0006] Optionally, the linkage structure includes a transmission bar, a transmission wheel, and a transmission clamp. The transmission wheel is mounted on the second pulley assembly and is used to sleeve the transmission bar. One end of the transmission clamp is mounted on the first pulley assembly, and the other end of the transmission clamp passes through the transmission cavity and is connected to the transmission bar. It is used to drive the transmission bar to drive the linkage fan body and the movable fan body connected to the linkage fan body when the movable fan body slides.

[0007] Optionally, the transmission bar includes two transmission parts, two connecting parts, and four steering parts. The transmission parts are located on both sides of the hanging rail unit along the length direction of the pulley assembly. The transmission directions of the two transmission parts are opposite. The transmission clamp is connected to the transmission parts through the transmission cavity. The two ends of the two transmission parts extend downward out of the transmission cavity. The connecting parts are located at the extended ends of the transmission parts and are used to connect the two transmission parts. The connecting parts are connected to the transmission wheel at the bottom of the pulley assembly along the width direction of the pulley assembly. The steering parts are located between the transmission parts and the connecting parts along the height direction of the pulley assembly and are used to connect the transmission parts inside the transmission cavity to the connecting parts outside the transmission cavity to form a closed loop.

[0008] Optionally, the first pulley assembly includes a first pulley bracket and a pulley group. The first pulley bracket is used to connect the movable fan body, and the transmission clamp is connected to the first pulley bracket. The pulley group is connected to both sides of the first pulley bracket and extends towards the middle of the first pulley bracket to slide within the track. The second pulley assembly includes a second pulley bracket and a pulley group, used to connect the linkage fan body, and the transmission bar is tractably connected to the second pulley bracket. The pulley group is connected to both sides of the second pulley bracket and extends towards the middle of the second pulley bracket to slide within the track.

[0009] Optionally, both the first pulley bracket and the second pulley bracket include a pulley connecting rod and two pulley positioning plates. The pulley connecting rod is used to connect the movable fan body or the linked fan body. The two pulley positioning plates extend vertically along both sides of the pulley connecting rod, and the pulley connecting rod and the two pulley positioning plates form a U-shaped compartment. The pulley assembly is rotatably connected to the pulley positioning plates. The pulley positioning plate of the first pulley bracket is connected to the transmission clamp, and the pulley positioning plate and the two pulley positioning plates of the second pulley bracket are respectively connected to the transmission bar.

[0010] Optionally, the pulley group includes a first pulley group and a second pulley group. The first pulley group is disposed at one end of the pulley connecting rod by two pulley positioning plates, and the second pulley group is disposed at the other end of the pulley connecting rod by two pulley positioning plates. The first pulley group and the second pulley group are used to connect to the two ends of the fan body respectively.

[0011] Optionally, the hanging rail unit includes a hanging rail top plate, a slide rail positioning plate, and an extension plate. The slide rail positioning plate extends downward into the pulley assembly along the central axis of the hanging rail top plate. The extension plate extends to both sides of the lower end of the slide rail positioning plate in a direction perpendicular to the slide rail positioning plate. The extension plate is provided with tracks adapted to the pulley assembly. The slide rail positioning plate and the extension plate form an inverted T-shaped structure suspended under the hanging rail top plate, and the two tracks are respectively provided on the two wings of the inverted T-shaped structure.

[0012] Optionally, the linkage rail further includes several mounting components, each including a height adjusting component and a connector. The height adjusting component is connected to a corresponding pulley assembly and is used to adjust the relative distance between the pulley assembly and the movable fan body or the linkage fan body. The connector is connected to the height adjusting component and is used to be inserted into and positioned in the grooves of the movable fan body or the linkage fan body on both sides.

[0013] Optionally, the connector is provided with an insertion part and an outer abutment part in sequence along the length direction of the groove of the fan body. The width of the insertion part is smaller than the width of the outer abutment part and the width of the groove of the fan body, and the width of the outer abutment part is larger than the width of the groove of the fan body. The insertion part is inserted into the groove of the fan body, and the outer abutment part abuts against the outside of the groove of the fan body.

[0014] Optionally, the height adjusting component includes a height adjusting stud and a height adjusting nut. The pulley assembly has a height adjusting screw hole. One end of the height adjusting stud is fitted into the length adjusting groove, and the other end of the height adjusting stud is threaded into the height adjusting screw hole. Rotating one end of the height adjusting stud adjusts the height of the pulley assembly. The height adjusting nut is threaded onto the height adjusting stud and is located between the connector and the pulley assembly. After the connector is inserted into the groove of the fan body, rotating the height adjusting nut adjusts the height of the pulley assembly.

[0015] A second aspect of the present invention discloses a linkage door and window, including a movable sash, a linkage sash, and the aforementioned linkage rail, wherein the movable sash and the linkage sash are suspended and installed under the linkage rail.

[0016] The beneficial effects of this invention are as follows: A transmission cavity can be formed between two adjacent hanging rail units. The pulley assembly slides on the rails on both sides of the hanging rail unit, which can achieve stable sliding and provide an installation position for the linkage structure. When the linkage structure connects two adjacent pulley assemblies, it only needs to pass through the transmission cavity, without leaving a gap between the hanging rail unit and the fan body, which can make the installation appearance of the hanging rail unit and the fan body more aesthetically pleasing. At the same time, the pulley assembly and linkage structure are completely housed in the hanging rail unit, which facilitates the pre-assembly of the hanging rail pulley structure and linkage structure. Attached Figure Description

[0017] Figure 1 This is a partial structural diagram of a four-panel hinged door and window; Figure 2 This is a partial structural diagram of a four-linkage lifting rail; Figure 3 This is a schematic diagram of the second pulley assembly; Figure 4 for Figure 3 A partial structural diagram of circle A in the middle; Figure 5 This is a schematic diagram of the structure of the first pulley assembly; Figure 6 This is a structural schematic diagram of the hanging rail unit; Figure 7 This is a schematic diagram of the linkage structure; Figure 8 This is a partial structural diagram of the transmission bar and transmission wheel; Figure 9 This is a partial sectional view of a three-panel door and window; Figure 10 This is a schematic diagram of the combined structure of the pulley assembly and the mounting assembly. Figure 11 This is a side view of the pulley assembly and mounting assembly combined. Figure 12 This is a partial structural diagram of the installed components; Figure 13 This is a schematic diagram of the connector structure.

[0018] Explanation of reference numerals in the attached figures: 100. Linkage rail; 200. Movable fan body; 300. Linkage fan body; 10. Suspension rail unit; 101. Transmission cavity; 11. Suspension rail top plate; 12. Slide rail positioning plate; 13. Extension plate; 131. Track; 20. Pulley assembly; 201. First pulley assembly; 202. Second pulley assembly; 21A. First pulley bracket; 21B. Second pulley bracket; 211. Pulley connecting rod; 212. Pulley positioning plate; 2121. Side pulley bracket; 2122. End pulley bracket; 22. Pulley block; 221. First pulley block; 222. Second pulley block; 23. Transmission tensioning assembly; 231. Tensioning mounting base; 232. Tensioning adjusting plate; 233. Tensioning adjusting component; 24. Damping buffer; 30. Linkage structure; 31. Transmission bar; 311. Transmission part; 312. Connecting part; 313. Steering part; 32. Transmission wheel; 321. First transmission wheel; 322. Second transmission wheel; 33. Transmission clamp; 3301. Movable fan transmission clamp; 3302. Linked fan transmission clamp; 331. Fixed base part; 332. Clamping part; 40. Mounting component; 41. Height adjustment component; 411. Height adjustment stud; 412. Height adjustment nut; 42. Connector; 421. Length adjustment slot; 422. Insertion part; 423. Outer abutment part; 424. Width abutment part; 425. Thickness abutment part. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the terms in this invention can be understood according to the specific circumstances.

[0021] See Figure 1-13The present invention discloses a linkage door and window, including a movable sash 200, a linkage sash 300 and a linkage hanging rail 100, wherein the movable sash 200 and the linkage sash 300 are suspended and installed under the linkage hanging rail 100.

[0022] See Figure 2 The linkage rail 100 includes several rail units 10, several pulley assemblies 20, and a linkage structure 30. The rail unit 10 is suspended by a track 131 extending from the middle to both sides, so that a transmission cavity 101 is formed between two adjacent rail units 10. The several pulley assemblies 20 slide on the corresponding track 131. The several pulley assemblies 20 include a first pulley assembly 201 for connecting the movable fan body 200 and a second pulley assembly 202 for connecting the linkage fan body 300. The linkage structure 30 is placed in the transmission cavity 101 and connects the first pulley assembly 201 and the second pulley assembly 202 for linkage of the movable fan body 200 and the linkage fan body 300.

[0023] Specifically, the three-linkage door and window includes two movable sashes 200 and one linkage sash 300, and the four-linkage door and window includes two movable sashes 200 and two linkage sashes 300. The linkage hanging rail 100 of this solution can be applied to multi-linkage door and window systems.

[0024] A transmission cavity 101 can be formed between two adjacent hanging rail units 10. The pulley assembly 20 slides on the rails 131 on both sides of the hanging rail unit 10, which can achieve stable sliding and provide an installation position for the linkage structure 30. When the linkage structure 30 is driving and connecting two adjacent pulley assemblies 20, it only needs to pass through the transmission cavity 101, without leaving a gap between the hanging rail unit 10 and the fan body, which can make the installation appearance between the hanging rail unit 10 and the fan body more aesthetically pleasing. At the same time, the pulley assembly 20 and the linkage structure 30 are completely housed in the hanging rail unit 10, which facilitates the pre-assembly of the hanging rail pulley structure 20 and the linkage structure 30.

[0025] The first pulley assembly 201 includes a first pulley bracket 21A and a pulley group 22. The first pulley bracket 21A is used to connect the movable fan body 200, and the transmission clamp 33 is connected to the first pulley bracket 21A. The pulley group 22 is connected to both sides of the first pulley bracket 21A and extends towards the middle of the first pulley bracket 21A to slide within the track 131. The second pulley assembly 202 includes a second pulley bracket 21B and a pulley group 22. The second pulley bracket 21B is used to connect the linkage fan body 300, and the transmission bar 31 can be connected to the second pulley bracket 21B. The pulley group 22 is connected to both sides of the second pulley bracket 21B and extends to the middle of the second pulley bracket 21B to slide within the track 131.

[0026] In this embodiment, both the first pulley bracket 21A and the second pulley bracket 21B include a pulley connecting rod 211 and two pulley positioning plates 212. The pulley connecting rod 211 is used to connect the fan body; the two pulley positioning plates 212 extend vertically along both sides of the pulley connecting rod 211; the pulley connecting rod 211 and the two pulley positioning plates 212 form a U-shaped compartment, and the pulley assembly 22 is rotatably connected to the pulley positioning plates 212 and located inside the U-shaped compartment. It can be understood that the two pulley assemblies 22 are respectively fixed to the two pulley positioning plates 212, and the two pulley assemblies 22 slide on the two sides of the extended rails 131 of the hanging rail unit 10, achieving force balance and stable sliding.

[0027] In this embodiment, the pulley block 22 includes a first pulley block 221 and a second pulley block 222; the first pulley block 221 is disposed at one end of the pulley connecting rod 211 by two pulley positioning plates 212; the second pulley block 222 is disposed at the other end of the pulley connecting rod 211 by two pulley positioning plates 212; the first pulley block 221 and the second pulley block 222 are respectively used to connect the two ends of the top of the fan body.

[0028] In the existing technology, the two pulley groups 22 connecting the top ends of the fan body are not connected together, but are fixedly connected to the fan body separately. This method means that the pulley groups 22 cannot be installed together with the hanging rail unit 10 in advance, and the hanging rail unit 10, pulley assembly 20 and fan body need to be connected at the installation site. In this solution, the first pulley group 221 and the second pulley group 222 are connected into one unit by the pulley connecting rod 211. This allows the two pulley groups 22 to be pre-positioned, and also facilitates the pre-installation of the hanging rail unit 10 and pulley assembly 20 into a single hanging rail pulley structure. At the fan body installation site, only the pulley connecting plate needs to be connected to the fan body.

[0029] See Figure 6 The suspended rail unit 10 includes a suspended rail top plate 11, a slide rail positioning plate 12, and an extension plate 13. The slide rail positioning plate 12 extends downward into the pulley assembly 20 along the central axis of the length direction of the suspended rail top plate 11. The extension plate 13 extends to both sides of the lower end of the slide rail positioning plate 12 in a direction perpendicular to the slide rail positioning plate 12. The extension plate 13 is provided with a track 131 that is adapted to the pulley assembly 20. The suspended rail unit 10 is an integrally formed structure.

[0030] The slide rail positioning plate 12 and the extension plate 13 form an inverted T-shaped structure suspended under the top plate 11 of the hanging rail, with two rails 131 respectively located on the two wings of the inverted T-shaped structure. The inverted T-shaped structure can not only suspend the rails, but also increase the space of the transmission cavity, making it convenient to accommodate the linkage structure and the pulley assembly 20.

[0031] The linkage structure 30 includes a transmission bar 31, a transmission wheel 32, and a transmission clamp 33. The transmission wheel 32 is mounted on the second pulley assembly 202 and is used to mount the transmission bar 31. One end of the transmission clamp 33 is connected to the first pulley assembly 201, and the other end of the transmission clamp 33 is connected to the transmission bar 31. See Figure 8 The transmission bar 31 includes two transmission parts 311. The transmission parts 311 are arranged on both sides of the hanging rail unit 10 along the length direction of the pulley assembly 20. The transmission directions of the two transmission parts 311 are opposite. A transmission cavity 101 is formed between adjacent hanging rail units 10. The transmission clamp 33 is connected to the transmission parts 311 through the transmission cavity 101. The two ends of the two transmission parts 311 extend downward into the transmission cavity 101 and are connected to form a transmission closed loop.

[0032] In this design, the transmission part 311 of the linkage structure 30 is located within the transmission cavity 101, allowing the transmission clamp 33 to directly connect to the transmission part 311 through the transmission cavity 101. This avoids the need for the transmission clamp 33 to be inserted into the gap between the hanging rail unit 10 and the sash body to achieve the transmission connection between two adjacent sash bodies. Since the linkage structure 30 and the sash body are not directly related in this design, the linkage structure 30 and the hanging rail pulley structure can be pre-installed, reducing on-site sash body installation steps, resulting in an aesthetically pleasing appearance and convenient installation.

[0033] In this embodiment, the transmission bar 31 further includes two connecting portions 312 and four steering portions 313. The connecting portions 312 are located at the extended ends of the transmission portions 311 and are used to connect the two transmission portions 311. The connecting portions 312 are connected to the transmission wheel 32 at the bottom of the second pulley assembly 202 along the width direction of the second pulley assembly 202. The steering portions 313 are located between the transmission portions 311 and the connecting portions 312 along the height direction of the second pulley assembly 202 and are used to connect the transmission portions 311 inside the transmission cavity 101 to the connecting portions 312 outside the transmission cavity 101. The connecting portions 312 and the steering portions 313 form a U-shaped structure, which can avoid the hanging rail structure opened in the middle and also minimize the space occupied by the transmission belt, without increasing the area occupied by the pulley assembly 20.

[0034] The transmission bar 31 is a cylindrical steel bar, which can satisfy the continuous, firm and stable transmission in three directions: transmission part 311, connecting part 312 and steering part 313.

[0035] In this embodiment, the transmission wheel 32 includes a first transmission wheel 321 and a second transmission wheel 322. The first transmission wheel 321 is connected to both sides of the second pulley assembly 202 and is used to guide the two transmission parts 311. The connection between the transmission part 311 and the steering part 313 is sleeved on the first transmission wheel 321. The second transmission wheel 322 is connected to the bottom of the second pulley assembly 202 and is used to guide the two steering parts 313. The connection between the steering part 313 and the connecting part 312 is sleeved on the second transmission wheel 322. The cooperation of the first transmission wheel 321 and the second transmission wheel 322 realizes the stable reversing and transmission of the transmission bar 31 in three directions.

[0036] In this embodiment, the pulley positioning plate 212 includes a side pulley bracket 2121 and an end pulley bracket 2122. The side pulley brackets 2121 are located on both sides of the transmission bar 31; the end pulley brackets 2122 are located at both ends of the second pulley assembly 202 and are situated between the two side pulley brackets 2121. The first transmission wheel 321 is fixed to the outer side of the side pulley bracket 2121 to extend into the transmission cavity 101, thus not occupying any extra space. The second transmission wheel 322 is fixed to the outer end of the end pulley bracket 2122. Since the pulley bracket slides on the hanging rail unit 10, and a certain gap is reserved between the pulley bracket and the end of the hanging rail unit 10 after the pulley bracket is installed, the second transmission wheel 322 also does not occupy any extra space, which helps to simplify the linkage structure 30.

[0037] In this embodiment, the linkage door and window is a four-linkage sliding window, including two linkage sashes 300 and two movable sashes 200. The transmission clamp 33 includes a movable sash transmission clamp 3301 and a linkage sash transmission clamp 3302. One end of the movable sash transmission clamp 3301 is connected to the first pulley assembly 201, and the other end is connected to the transmission bar 31 on the adjacent second pulley assembly 202. One end of the linkage sash transmission clamp 3302 is connected to the second pulley assembly 202, and the other end is connected to the transmission bar 31 on the adjacent second pulley assembly 202. Each linkage sash 300 is provided with a closed-loop transmission bar 31. The linkage between two adjacent linkage sashes 300 is transmitted through the linkage sash transmission clamp 3302, and the linkage between the movable sash 200 and the linkage sash 300 is transmitted through the movable sash transmission clamp 3301.

[0038] See Figure 3One linkage fan drive clamp 3302 is located at the first end of a second pulley assembly 202, and another adjacent linkage fan drive clamp 3302 is located at the second end of another second pulley assembly 202. The first and second ends are opposite in direction, representing the two ends of the second pulley assembly 202, respectively. This is understandable. The transmission parts 311 of two adjacent transmission bars 31 move in opposite directions. Placing the two linkage fan drive clamps 3302 at the two ends of the second pulley assembly 202 respectively helps to increase the linkage movement distance between the two linkage fans.

[0039] Specifically, the transmission clamp 33 includes a fixed base portion 331 and a clamping portion 332. The fixed base portion 331 is fixed to the first pulley assembly 201. One end of the clamping portion 332 is connected to the fixed base portion 331, and the other end of the clamping portion 332 extends from one hanging rail unit 10 into another hanging rail unit 10 along a direction parallel to the width of the first pulley assembly 201 and is connected to the transmission bar 31. The transmission clamp 33 is positioned with the shortest distance parallel to the width of the first pulley assembly 201, which facilitates better linkage with the transmission bar 31.

[0040] See Figure 5 The first pulley assembly 201 also includes a damping buffer 24, which is fixedly connected to the pulley positioning plate 212. The damping buffer 24 is used to buffer the movable fan body 200 during the pushing and pulling process.

[0041] See Figure 4 The second pulley assembly 202 also includes a transmission tensioning assembly 23. The pulley connecting rod 211 has mounting grooves on both sides. The pulley positioning plate 212 is slidably connected in the mounting groove. The transmission tensioning assembly 23 is located between the pulley connecting rod 211 and the pulley positioning plate 212 and is used to adjust the position of the pulley positioning plate 212 to tension the transmission bar 31 sleeved on the transmission wheel 32.

[0042] Specifically, the transmission tensioning assembly 23 includes a tensioning mounting base 231, a tensioning adjusting plate 232, and a tensioning adjusting component 233. The tensioning mounting base 231 is fixed to the pulley connecting rod 211; the tensioning adjusting plate 232 is fixedly connected to the pulley positioning plate 212; and the tensioning adjusting component 233 is a tensioning screw. Located on the tensioning mounting base 231, the tensioning adjusting plate 232 can be adjusted to slide by rotating the tensioning screw, thereby driving the transmission wheel 32 to move and tension the transmission bar 31.

[0043] See Figure 10-13 The mounting assembly 40 includes a height adjustment component 41 and a connector 42. One end of the height adjustment component 41 is connected to the connector 42, and the other end of the height adjustment component 41 is connected to the second pulley assembly 202. The connector 42 is used to be inserted into and positioned in the groove of the fan body along both sides of the fan body. The height adjustment component 41 is used to adjust the relative distance between the second pulley assembly 202 and the fan body.

[0044] In this design, the pulley mounting structure uses connectors 42 on two sets of mounting components 40, which are inserted into grooves in the top profile of the fan body, to connect the second pulley assembly 202 to the fan body. The height adjustment component 41 allows for height adjustment of the second pulley assembly 202 to ensure stable sliding within the hanging rail unit 10. By mounting the second pulley assembly 202 and mounting components 40 as a single unit onto the fan body, the second pulley assembly 202 and mounting components 40 can be pre-installed before on-site fan body installation, simplifying the process.

[0045] See Figure 11 The connector 42 is provided with a length adjustment groove 421 that is aligned with the length direction of the groove in the fan body. One end of the height adjustment member 41 is slidably connected to the length adjustment groove 421. The height adjustment member 41 is connected to the second pulley assembly 202, so its length is a fixed length. The length adjustment groove 421 allows the connector 42 to slide within the length direction of the length adjustment groove 421 to adjust the relative distance between the two connectors 42, which is used to connect and adapt to fans of different lengths.

[0046] See Figure 13 The connector 42 has an insertion portion 422 and an outer abutment portion 423 arranged sequentially along the length of the groove in the fan body. The width of the insertion portion 422 is smaller than the width of the outer abutment portion 423 and the width of the groove in the fan body, while the width of the outer abutment portion 423 is larger than the width of the groove in the fan body. The insertion portion 422 is inserted into the groove in the fan body, and the outer abutment portion 423 abuts against the outside of the groove in the fan body. The outer abutment portion 423 is used to block the connector 42 from being completely inserted into the groove in the fan body, which would make adjustment difficult. The width of the insertion portion 422 is smaller than the width of the groove in the fan body to facilitate insertion into the groove.

[0047] In this embodiment, the connector 42 is further provided with a width abutment portion 424, which is disposed between the insertion portion 422 and the outer abutment portion 423. The width of the width abutment portion 424 is greater than the width of the insertion portion 422 and less than the width of the groove of the fan body, and is used to limit the connector 42 from wobbling in the width direction of the groove of the fan body. The width of the width abutment portion 424 is slightly smaller than the width of the groove of the fan body, which can ensure that it can be inserted into the groove, and at the same time, it can also abut against the two side walls of the groove after being inserted into the groove, preventing the connector 42 from wobbling in the width direction.

[0048] In this embodiment, the connector 42 is further provided with a thickness abutment portion 425, which is vertically connected to the insertion portion 422 and abuts against the thickness direction of the fan body, thereby limiting the connector 42 from wobbling in the thickness direction of the groove of the fan body. After the insertion portion 422 is inserted into the groove, the thickness abutment portion 425 can abut against the top and bottom of the groove to prevent the connector 42 from wobbling in the thickness direction.

[0049] In this embodiment, the height adjustment component 41 includes a height adjustment stud 411. The second pulley assembly 202 is provided with a height adjustment screw hole. One end of the height adjustment stud 411 is sleeved in the length adjustment groove 421, and the other end of the height adjustment stud 411 is connected to the height adjustment screw hole. Rotating one end of the height adjustment stud 411 adjusts the height of the second pulley assembly 202. It can be understood that one end of the height adjustment stud 411 abuts against the outer surface of the top profile of the fan body. The height adjustment stud 411 is threadedly connected to the height adjustment screw hole. When the height adjustment stud 411 is rotated, the external thread of the height adjustment stud engages with the internal thread of the height adjustment screw hole, thereby achieving the effect of raising or lowering the second pulley assembly 202.

[0050] In this embodiment, the height adjustment component 41 further includes a height adjustment nut 412, which is threaded onto the height adjustment stud 411 and positioned between the connector 42 and the second pulley assembly 202. After the connector 42 is inserted into the groove of the fan body, the height adjustment nut 412 is rotated to adjust the height of the second pulley assembly 202. After the mounting component 40 is inserted into the fan body, the external tool can connect to the height adjustment nut 412 through the gap between the connector 42 and the second pulley assembly 202, and the height adjustment stud 411 can be rotated by rotating the height adjustment nut 412.

[0051] In this design, the height adjustment screw hole is located on the pulley bracket 21. The raising and lowering of the pulley bracket 21 directly drives the raising and lowering of the first pulley group 221 and the second pulley group 222. The first pulley group 221 and the second pulley group 222 are connected to the pulley bracket 21 simultaneously, which facilitates the pre-installation of the hanging rail unit 10 and the pulley assembly 20 as a whole. At the fan installation site, only the mounting component 40 needs to be connected to the fan body.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A linkage lifting rail, characterized in that, include: A plurality of suspension rail units, wherein the suspension rail units are suspended by rails extending from the middle to both sides, so that a transmission cavity is formed between two adjacent suspension rail units; A plurality of pulley assemblies, the pulley assemblies sliding on corresponding tracks, the plurality of pulley assemblies including a first pulley assembly for connecting a movable fan body and a second pulley assembly for connecting a linked fan body; A linkage structure is provided, which is placed inside the transmission cavity and connected to the first pulley assembly and the second pulley assembly, for linking the movable fan body and the linkage fan body. The linkage structure includes: Drive bar; A transmission wheel, which is mounted on the second pulley assembly, is used to mount the transmission bar. A transmission clamp, one end of which is disposed on the first pulley assembly, and the other end of which passes through the transmission cavity and is connected to the transmission bar, is used to drive the transmission bar to drive the linkage fan body and the movable fan body connected to the linkage fan body when the movable fan body slides.

2. The linkage lifting rail according to claim 1, characterized in that, The transmission bar includes: Two transmission parts are provided on both sides of the hanging rail unit along the length direction of the pulley assembly. The transmission directions of the two transmission parts are opposite. The transmission clamp is connected to the transmission parts through the transmission cavity. The two ends of the two transmission parts extend downward out of the transmission cavity respectively. Two connecting parts are provided at the extended ends of the transmission parts for connecting the two transmission parts, wherein the connecting parts are throttle connected to the transmission wheel at the bottom of the pulley assembly along the width direction of the pulley assembly; Four steering parts are provided between the transmission part and the connecting part along the height direction of the pulley assembly, and are used to connect the transmission part inside the transmission cavity to the connecting part outside the transmission cavity to form a closed loop.

3. The linkage lifting rail according to claim 1, characterized in that, The first pulley assembly includes: A first pulley bracket is used to connect the movable fan body, and the transmission clamp is connected to the first pulley bracket; A pulley block, which is connected to both sides of the first pulley bracket and extends toward the middle of the first pulley bracket to slide within the track; The second pulley assembly includes: The second pulley bracket is used to connect the linkage fan body, and the transmission bar can be tractively connected to the second pulley bracket; A pulley block is connected to both sides of the second pulley bracket and extends toward the middle of the second pulley bracket to slide within the track.

4. The linkage lifting rail according to claim 3, characterized in that, Both the first pulley bracket and the second pulley bracket include: A pulley connecting rod, which is used to connect the movable fan body or the linked fan body; Two pulley positioning plates extend vertically along both sides of the pulley connecting rod, and the pulley connecting rod and the two pulley positioning plates form a U-shaped cavity. The pulley assembly is rotatably connected to the pulley positioning plates. The pulley positioning plate of the first pulley bracket is connected to the transmission clamp, and the pulley positioning plate and the two pulley positioning plates of the second pulley bracket are respectively connected to the transmission bar.

5. The linkage lifting rail according to claim 4, characterized in that, The pulley assembly includes a first pulley assembly and a second pulley assembly. The first pulley assembly is mounted on one end of the pulley connecting rod via two pulley positioning plates, and the second pulley assembly is mounted on the other end of the pulley connecting rod via two pulley positioning plates. The first pulley assembly and the second pulley assembly are used to connect to the two ends of the fan body, respectively.

6. The linkage lifting rail according to claim 1, characterized in that, The suspension rail unit includes: Suspended rail top plate, A slide rail positioning plate extends downward into the pulley assembly along the central axis of the length direction of the top plate of the hanging rail; An extension plate extends from both sides of the lower end of the slide rail positioning plate in a direction perpendicular to the slide rail positioning plate, and the extension plate is provided with a track adapted to the pulley assembly; The slide rail positioning plate and the extension plate form an inverted T-shaped structure suspended under the top plate of the hanging rail, and the two rails are respectively located on the two wings of the inverted T-shaped structure.

7. The linkage lifting rail according to claim 1, characterized in that, The linkage rail also includes several mounting components, which include: A height adjustment component, connected to a corresponding pulley assembly, is used to adjust the relative distance between the pulley assembly and the movable fan body or the linked fan body; A connector, which connects to the height adjustment component, is used to be inserted into and positioned in the grooves on both sides of the movable fan body or the linkage fan body.

8. The linkage lifting rail according to claim 7, characterized in that, The connector is provided with an insertion part and an outer abutment part in sequence along the length direction of the groove of the fan body. The width of the insertion part is smaller than the width of the outer abutment part and the width of the groove of the fan body. The width of the outer abutment part is larger than the width of the groove of the fan body. The insertion part is inserted into the groove of the fan body, and the outer abutment part abuts against the outside of the groove of the fan body.

9. The linkage lifting rail according to claim 7, characterized in that, The height adjustment component includes: A height-adjusting stud is provided. The pulley assembly has a height-adjusting screw hole. One end of the height-adjusting stud is fitted into the length-adjusting groove of the connector, and the other end of the height-adjusting stud is threaded into the height-adjusting screw hole. Rotating one end of the height-adjusting stud adjusts the height of the pulley assembly. A height adjusting nut is threaded onto the height adjusting stud and positioned between the connector and the pulley assembly. After the connector is inserted into the groove of the fan body, the height adjusting nut is rotated to adjust the height of the pulley assembly.

10. A type of linked door and window, characterized in that, It includes a movable fan body, a linked fan body, and a linked hanging rail as described in any one of claims 1-9, wherein the movable fan body and the linked fan body are suspended and installed under the linked hanging rail.

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