Flexible transmission corner guide structure and door and window

Abstract

The utility model belongs to door and window technical field discloses flexible transmission corner guide structure and door and window, and flexible transmission corner guide structure includes corner ware and flexible transmission spare, and corner ware includes fixed base, gyro wheel and guide structure, and fixed base is used for with the outer wall connection of corner, and gyro wheel rotation is connected on fixed base, and the axis of gyro wheel is configured as parallel with the edge of corner, and flexible transmission spare is set to the one side of gyro wheel and is configured as along the circumferential extension of sash frame, and gyro wheel and guide structure all are with flexible transmission spare swing joint, and the moving direction of flexible transmission spare at the horizontal edge frame of sash frame is the extension direction of horizontal edge frame in guide structure, and the moving direction of flexible transmission spare at the vertical edge frame of sash frame is the extension direction of vertical edge frame in guide structure. This flexible transmission corner guide structure can reduce the probability of flexible transmission spare wear and break, and can also improve the consistency of flexible transmission spare moving track.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a flexible transmission corner guide structure and door / window. Background Technology

[0002] The prior art discloses a transmission structure for a window sash, which includes four transmission rods and four transmission ropes. The four transmission rods are located at the four edges of the window sash, and the four transmission ropes are located at the four corners of the window sash. Each transmission rope is connected at both ends to a corresponding transmission rod, thereby connecting the transmission housing, locking rod, and other moving parts to the transmission rods, thus realizing the transmission between the moving parts.

[0003] However, after prolonged use, the drive rope in the aforementioned structure is prone to wear and tear from the corners of the window sash, and may even break, thus preventing the various moving parts from transmitting power to each other. Furthermore, when the drive rope reciprocates at corners, it is prone to displacement along the thickness of the window sash, reducing the consistency of the drive rope's movement trajectory and consequently lowering the transmission accuracy between the moving parts.

[0004] Therefore, there is an urgent need to propose a flexible door transmission corner guide structure and a door / window to solve the above-mentioned technical problems. Utility Model Content

[0005] The first objective of this invention is to provide a flexible transmission corner guide structure that can reduce the probability of wear and breakage of flexible transmission components and improve the consistency of the movement trajectory of flexible transmission components.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A flexible transmission corner guide structure, comprising:

[0008] The corner mechanism includes a fixed base, a roller, and a guide structure. The fixed base is used to connect to the outer wall of the corner of the fan frame, and the roller is rotatably connected to the fixed base. The axis of the roller is configured to be parallel to the edge of the corner.

[0009] A flexible transmission element is mounted across the side of the roller away from the corner and is configured to extend circumferentially along the fan frame. Both the roller and the guide structure are movably connected to the flexible transmission element. The guide structure is configured such that the direction of movement of the flexible transmission element located at the horizontal edge of the fan frame is the direction of extension of the horizontal edge, and the guide structure is configured such that the direction of movement of the flexible transmission element located at the vertical edge of the fan frame is the direction of extension of the vertical edge.

[0010] Optionally, the fixed base includes a first base body and a second base body connected to each other. Both the first base body and the second base body are used to connect to the outer wall of the corner. The first base body is configured to be parallel to the horizontal frame, and the second base body is configured to be parallel to the vertical frame. The guide structure includes a first guide portion and a second guide portion. The first guide portion is disposed on the first base body and is configured to extend along the extension direction of the horizontal frame. The second guide portion is disposed on the second base body and is configured to extend along the extension direction of the vertical frame. Both the first guide portion and the second guide portion are movably connected to the flexible transmission member.

[0011] Optionally, the guide structure further includes a third guide portion, which is disposed on the outer periphery of the roller and distributed along the circumferential direction of the roller. The third guide portion is movably connected to the flexible transmission component, and the first guide portion and the second guide portion are both disposed opposite to the third guide portion.

[0012] Optionally, the third guide portion includes a groove that extends circumferentially along the roller and is connected end to end, and the flexible transmission element slides in conjunction with the groove.

[0013] Optionally, the extension line of the first guide portion in the extension direction of the horizontal frame is called the first extension line, and the extension line of the second guide portion in the extension direction of the vertical frame is called the second extension line, and the first extension line and the second extension line intersect.

[0014] Optionally, the first guide portion includes a first through groove, the extension direction of the first through groove being configured to be the extension direction of the horizontal frame, and the flexible transmission member slidingly engaging with the first through groove;

[0015] And / or, the second guide portion includes a second through groove, the extension direction of which is configured to be the extension direction of the vertical frame, and the flexible transmission member slides in conjunction with the second through groove.

[0016] Optionally, both the roller and the flexible transmission component are located on the side of the fixed base away from the corner.

[0017] Optionally, the mounting base is provided with a clearance notch, which is configured to face the corner and the roller is located within the clearance notch.

[0018] Optionally, the fixed base also includes a frame, with a clearance notch formed between the corner-facing end of the first base and the corner-facing end of the second base, and the frame is connected to the first base and the second base respectively, with rollers rotatably connected to the frame.

[0019] The second objective of this invention is to provide a door or window that can reduce the probability of wear and breakage of flexible transmission components and improve the consistency of the movement trajectory of the flexible transmission components.

[0020] To achieve this objective, the present invention adopts the following technical solution:

[0021] Doors and windows, including the aforementioned flexible transmission corner guide structure.

[0022] The beneficial effects of this utility model are:

[0023] The flexible transmission corner guide structure provided by this utility model includes a corner mechanism. When the flexible transmission component moves, the roller rotates on the fixed base, thereby reducing the friction between the roller and the flexible transmission component and lowering the probability of wear and breakage of the flexible transmission component. The guide structure of the corner mechanism is movably connected to the flexible transmission component, so that the movement direction of the flexible transmission component located at the horizontal frame is the extension direction of the horizontal frame, and the movement direction of the flexible transmission component located at the vertical frame is the extension direction of the vertical frame, which helps to improve the consistency of the movement trajectory of the flexible transmission component. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the door and window provided by this utility model;

[0025] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the corner device provided by this utility model;

[0027] Figure 4 This is an exploded structural diagram of the corner device provided by this utility model;

[0028] Figure 5 yes Figure 1 Schematic diagram of the structure from the perspective of the middle F;

[0029] Figure 6 yes Figure 5 Enlarged view of section B in the middle.

[0030] In the picture:

[0031] 110. Horizontal frame; 111. First support edge; 120. Vertical frame; 130. Corner; 131. Edge; 210. Fixing seat; 211. Clearance notch; 212. First seat body; 2121. First protrusion; 213. Second seat body; 2131. Second protrusion; 214. Frame body; 2141. Frame plate; 220. Roller; 230. Rotating shaft; 300. Flexible transmission component; 410. First guide part; 411. First through groove; 420. Second guide part; 421. Second through groove; 430. Third guide part; 431. Groove. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] This embodiment provides a flexible transmission corner guide structure, which can reduce the probability of wear and breakage of flexible transmission components and improve the consistency of the movement trajectory of flexible transmission components.

[0037] Specifically, such as Figure 1 and Figure 2As shown, the flexible transmission corner guide structure includes a corner unit and a flexible transmission component 300. The corner unit includes a fixed base 210, a roller 220, and a guide structure. The fixed base 210 is used to connect with the outer wall of the corner 130 of the fan frame. The roller 220 is rotatably connected to the fixed base 210. The axis of the roller 220 is configured to be parallel to the edge 131 of the corner 130. The flexible transmission component 300 spans the side of the roller 220 away from the corner 130 and is configured to extend circumferentially along the fan frame. Both the roller 220 and the guide structure are movably connected to the flexible transmission component 300. The guide structure is configured such that the moving direction of the flexible transmission component 300 located at the horizontal frame 110 of the fan frame is the extending direction of the horizontal frame 110. The guide structure is configured such that the moving direction of the flexible transmission component 300 located at the vertical frame 120 of the fan frame is the extending direction of the vertical frame 120.

[0038] In this embodiment, the horizontal frame 110 extends in the x direction, the vertical frame 120 extends in the z direction, and the edge 131 of the corner 130 extends in the y direction, that is, the axis of the roller 220 is in the y direction.

[0039] The flexible transmission corner guide structure is equipped with a corner mechanism. When the flexible transmission component 300 moves, the roller 220 rotates on the fixed base 210, thereby reducing the friction between the roller 220 and the flexible transmission component 300, and lowering the probability of wear and breakage of the flexible transmission component 300. The guide structure of the corner mechanism is movably connected to the flexible transmission component 300, so that the moving direction of the flexible transmission component 300 located at the horizontal frame 110 is the extension direction of the horizontal frame 110, and the moving direction of the flexible transmission component 300 located at the vertical frame 120 is the extension direction of the vertical frame 120, which helps to improve the consistency of the moving trajectory of the flexible transmission component 300.

[0040] Optionally, the flexible transmission component 300 includes components with certain flexibility and a certain length, such as steel rope, steel belt, aluminum rope, or aluminum belt.

[0041] Optionally, such as Figures 1 to 3As shown, the fixed base 210 includes a first base body 212 and a second base body 213 connected to each other. Both the first base body 212 and the second base body 213 are used to connect to the outer wall of the corner 130. The first base body 212 is configured to be parallel to the horizontal frame 110, and the second base body 213 is configured to be parallel to the vertical frame 120. The guide structure includes a first guide portion 410 and a second guide portion 420. The first guide portion 410 is disposed on the first base body 212 and is configured to extend along the extension direction of the horizontal frame 110. The second guide portion 420 is disposed on the second base body 213 and is configured to extend along the extension direction of the vertical frame 120. Both the first guide portion 410 and the second guide portion 420 are movably connected to the flexible transmission member 300. So that the fixed seat 210 can guide the flexible transmission member 300, so that the moving direction of the flexible transmission member 300 located at the horizontal frame 110 is the extension direction of the horizontal frame 110, and the moving direction of the flexible transmission member 300 located at the vertical frame 120 is the extension direction of the vertical frame 120.

[0042] Furthermore, the extension line of the first guide portion 410 in the extension direction of the horizontal frame 110 is the first extension line, and the extension line of the second guide portion 420 in the extension direction of the vertical frame 120 is the second extension line, and the first extension line and the second extension line intersect. Consequently, when the flexible transmission member 300 moves between the first guide portion 410 and the second guide portion 420, it does not need to change direction, thus improving the consistency of the movement trajectory of the flexible transmission member 300 when moving between the first guide portion 410 and the second guide portion 420.

[0043] Optionally, the first guide portion 410 includes a first through groove 411, the extension direction of which is configured to be the extension direction of the horizontal frame 110, that is, the first through groove 411 extends along the x direction. The flexible transmission member 300 slides with the first through groove 411, and the first through groove 411 guides the flexible transmission member 300 located at the horizontal frame 110, so that the movement direction of the flexible transmission member 300 located at the horizontal frame 110 is the extension direction of the horizontal frame 110.

[0044] In one embodiment, the first guide portion 410 includes a first protrusion that extends along the extension direction of the horizontal frame 110, i.e., the first protrusion extends along the x-direction. There are two first protrusions, which are spaced apart along the axial direction of the roller 220, i.e., the two first protrusions are spaced apart along the y-direction. The flexible transmission member 300 is slidably disposed between the two first protrusions. The two first protrusions guide the flexible transmission member 300, so that the moving direction of the flexible transmission member 300 located at the horizontal frame 110 is the extension direction of the horizontal frame 110.

[0045] In another embodiment, the first guide portion 410 includes a first guide channel that extends along the extension direction of the horizontal frame 110, i.e., the first guide channel extends along the x-direction. The flexible transmission member 300 is movably inserted into the first guide channel, and the first guide channel guides the flexible transmission member 300 so that the direction of movement of the flexible transmission member 300 located at the horizontal frame 110 is the extension direction of the horizontal frame 110.

[0046] Optionally, the second guide portion 420 includes a second through groove 421, the extension direction of which is configured to be the extension direction of the vertical frame 120, that is, the second through groove 421 extends along the z direction. The flexible transmission member 300 slides with the second through groove 421, and the second through groove 421 guides the flexible transmission member 300 located at the vertical frame 120, so that the movement direction of the flexible transmission member 300 located at the vertical frame 120 is the extension direction of the vertical frame 120.

[0047] In one embodiment, the second guide portion 420 includes a second protrusion that extends along the extension direction of the vertical frame 120, i.e., the second protrusion extends along the z-direction. There are two second protrusions, which are spaced apart along the axial direction of the roller 220, i.e., the two second protrusions are spaced apart along the y-direction. The flexible transmission member 300 is slidably disposed between the two second protrusions. The two second protrusions guide the flexible transmission member 300, so that the moving direction of the flexible transmission member 300 located at the vertical frame 120 is the extension direction of the vertical frame 120.

[0048] In another embodiment, the second guide portion 420 includes a second guide channel that extends along the extension direction of the vertical frame 120, i.e., the second guide channel extends along the z-direction. The flexible transmission member 300 is movably inserted into the second guide channel, and the second guide channel guides the flexible transmission member 300 so that the direction of movement of the flexible transmission member 300 located at the vertical frame 120 is the extension direction of the vertical frame 120.

[0049] Optionally, the guiding structure further includes a third guide portion 430, which is disposed on the outer periphery of the roller 220 and distributed along the circumference of the roller 220. The third guide portion 430 is movably connected to the flexible transmission member 300, and the first guide portion 410 and the second guide portion 420 are both disposed opposite to the third guide portion 430. When the flexible transmission member 300 passes the roller 220, the third guide portion 430 guides the flexible transmission member 300, ensuring that the flexible transmission member 300 located on the roller 220 can only slide around the axis of the roller 220, and cannot slide along the axial direction of the roller 220. This ensures that the flexible transmission member 300 can move relatively smoothly between the first guide portion 410 and the second guide portion 420, which is beneficial to further improve the consistency of the movement trajectory of the flexible transmission member 300.

[0050] Furthermore, the third guide portion 430 includes a groove 431 that extends circumferentially along the roller 220 and is connected end to end. The flexible transmission member 300 slides in conjunction with the groove 431. The groove 431 limits and guides the flexible transmission member 300 located on the roller 220, ensuring that the flexible transmission member 300 can only slide around the axis of the roller 220.

[0051] In one embodiment, the third guide portion 430 includes a protruding component that protrudes from the outer periphery of the roller 220. The protruding component can be a convex ridge that extends circumferentially along the roller 220 and is connected end to end, or it can be a plurality of protrusions that are evenly distributed circumferentially along the roller 220. There are two sets of protruding components, which are spaced apart along the axial direction of the roller 220, i.e., the two sets of protruding components are spaced apart along the y-direction. The flexible transmission member 300 is slidably disposed between the two sets of protruding components. The two sets of protruding components guide the flexible transmission member 300, so that the flexible transmission member 300 located on the roller 220 can only slide around the axis of the roller 220.

[0052] Optionally, such as Figure 2 As shown, the roller 220 and the flexible transmission component 300 are both located on the side of the fixed base 210 away from the corner 130, in order to simplify the assembly of the fan frame, the corner device and the flexible transmission component 300.

[0053] Optionally, such as Figure 3 As shown, the fixed base 210 is provided with a clearance notch 211, which is configured to face the corner 130. The roller 220 is located inside the clearance notch 211 to reduce the overall volume of the corner unit.

[0054] Furthermore, the fixed base 210 also includes a frame 214. A clearance notch 211 is formed between the side of the first base 212 facing the corner 130 and the side of the second base 213 facing the corner 130. The frame 214 is connected to the first base 212 and the second base 213 respectively, and the roller 220 is rotatably connected to the frame 214. When producing the corner bracket, the first base 212, the second base 213, and the frame 214 can be produced separately, and then the three can be assembled, which helps to reduce production difficulty and improve production efficiency.

[0055] Furthermore, such as Figure 3 and Figure 4As shown, the frame 214 includes two L-shaped frame plates 2141. The two frame plates 2141 are spaced apart along the axis of the roller 220, that is, the two frame plates 2141 are spaced apart along the y-direction. One end of the two frame plates 2141 is respectively connected to the two sides of the first base 212 in the y-direction, and the other end of the two frame plates 2141 is respectively connected to the two sides of the second base 213 in the y-direction. The roller 220 is located between the two frame plates 2141 and is rotatably connected at the corner 130 of the two frame plates 2141. The frame 214 is set as two split structures, which further simplifies the structure of the fixed base 210, reduces the production difficulty and improves the production efficiency.

[0056] Optionally, a rotating shaft 230 is riveted and fixed between the two frame plates 2141, and a roller 220 is rotatably connected to the rotating shaft 230. To reduce the noise when the roller 220 rotates, a lubricating layer is provided on the outer wall of the rotating shaft 230. The lubricating layer can be a lubricating oil layer, a lubricating grease layer, a graphite layer, or a polytetrafluoroethylene layer, etc., which will not be listed here.

[0057] Optionally, the first seat 212 and the second seat 213 are riveted to the frame plate 2141 by a press riveting process or a spin riveting process to improve the overall stability of the fixed seat 210 and avoid the problem of inconsistent movement trajectory of the flexible transmission component 300 due to deformation of the fixed seat 210.

[0058] Optionally, both the first seat 212 and the second seat 213 are made of alloy material, and the frame plate 2141 is made of steel plate. This facilitates procurement and processing, and also helps to improve the overall structural strength of the fixed seat 210, avoiding the problem of inconsistent movement trajectory of the flexible transmission component 300 due to deformation of the fixed seat 210.

[0059] Optionally, such as Figures 4 to 6 As shown, along the axial direction of the roller 220, the first seat 212 has a first protrusion 2121 protruding on both sides. The outer wall of the horizontal frame 110 has a first groove. The inner walls of the first groove along the axial direction of the roller 220 have a first support rib 111 protruding on both sides. Each first protrusion 2121 is connected to a corresponding first support rib 111. Along the axial direction of the roller 220, the second seat 213 has a second protrusion 2131 protruding on both sides. The outer wall of the vertical frame 120 has a second groove. The inner walls of the second groove along the axial direction of the roller 220 have a second support rib (not shown in the figure). Each second protrusion 2131 is connected to a corresponding second support rib, thereby realizing the connection between the fixed seat 210 and the horizontal frame 110 and the vertical frame 120.

[0060] Optionally, the flexible transmission member 300 abuts against the bottom of the first through groove 411 to press the first protrusion 2121 onto the first support rib 111, and the flexible transmission member 300 abuts against the bottom of the second through groove 421 to press the second protrusion 2131 onto the second support rib. This structure can eliminate the need for connecting parts (such as bolts) between the fixing seat 210 and the horizontal frame 110, and between the fixing seat 210 and the vertical frame 120, thus improving the efficiency of door and window assembly.

[0061] In one embodiment, the first protrusion 2121 is bonded and fixed to the first support ridge 111, and the second protrusion 2131 is bonded and fixed to the second support ridge.

[0062] In another embodiment, the first protrusion 2121 is connected to the first support rib 111 by a first bolt, and the second protrusion 2131 is connected to the second support rib by a second bolt.

[0063] This embodiment also provides a door and window, which includes the flexible transmission corner guide structure of the sash frame described above. The sash frame includes a horizontal frame 110 and a vertical frame 120. The horizontal frame 110 and the vertical frame 120 are connected and form a corner 130 in the connection area. The fixing seat 210 is connected to the outer wall of the corner 130. The axis of the roller is parallel to the edge 131 of the corner 130. The flexible transmission member 300 extends along the circumference of the sash frame. The door and window adopts the above-mentioned flexible transmission corner guide structure, which can reduce the probability of wear and breakage of the flexible transmission member 300 and improve the consistency of the movement trajectory of the flexible transmission member 300.

[0064] Furthermore, there are two horizontal frame 110s and two vertical frame 120s, and the horizontal frame 110s and vertical frame 120s are alternately arranged and connected end to end in sequence to form a square fan frame, and there are four corners 130s. In order to further reduce the risk of wear and breakage of the flexible transmission component 300 and to further improve the guiding effect of the flexible transmission component 300, a corner device is provided at each corner 130.

[0065] Furthermore, the door and window also include multiple moving parts, which are located on the horizontal frame 110 and the vertical frame 120, respectively. All moving parts are connected to the flexible transmission component 300, and the moving parts are connected to each other via the flexible transmission component 300. The corner device located at the corner 130 improves the consistency of the moving trajectory of the flexible transmission component 300, thereby improving the transmission accuracy between the moving parts. Furthermore, the corner device reduces the probability of wear and breakage of the flexible transmission component 300, ensuring the reliability of the transmission connection between the moving parts.

[0066] It should be noted that the aforementioned movable parts refer to hardware components that can reciprocate relative to the outer wall of the sash frame, such as the transmission housing, locking rod, side pressure pulley, side pressure upper pulley, and side pressure lock hook commonly found on window sashes, which will not be listed here.

[0067] It should also be noted that the term "doors and windows" refers to both doors and windows collectively; that is, it can refer to either doors or windows. Similarly, the term "sash frame" refers to both door and window sash frames; that is, it can refer to either door or window sash frames.

[0068] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flexible transmission corner guide structure, characterized in that, include: A corner mechanism, comprising a fixed base (210), a roller (220), and a guide structure, wherein the fixed base (210) is used to connect to the outer wall of the corner (130) of the fan frame, the roller (220) is rotatably connected to the fixed base (210), and the axis of the roller (220) is configured to be parallel to the edge (131) of the corner (130); A flexible transmission member (300) is provided across the roller (220) on the side opposite to the corner (130) and is configured to extend circumferentially along the fan frame. The roller (220) and the guide structure are both movably connected to the flexible transmission member (300). The guide structure is configured such that the direction of movement of the flexible transmission member (300) located at the horizontal frame (110) of the fan frame is the extension direction of the horizontal frame (110). The guide structure is also configured such that the direction of movement of the flexible transmission member (300) located at the vertical frame (120) of the fan frame is the extension direction of the vertical frame (120).

2. The flexible transmission angle guide structure according to claim 1, characterized in that, The fixing seat (210) includes a first seat body (212) and a second seat body (213) connected to each other. Both the first seat body (212) and the second seat body (213) are used to connect to the outer wall of the corner (130). The first seat body (212) is configured to be parallel to the horizontal frame (110), and the second seat body (213) is configured to be parallel to the vertical frame (120). The guide structure includes a first guide portion (410) and a second guide portion (420). A first guide portion (410) is disposed on the first seat (212) and is configured to extend along the extension direction of the horizontal frame (110). A second guide portion (420) is disposed on the second seat (213) and is configured to extend along the extension direction of the vertical frame (120). Both the first guide portion (410) and the second guide portion (420) are movably connected to the flexible transmission member (300).

3. The flexible transmission angle guide structure according to claim 2, characterized in that, The guiding structure further includes a third guiding part (430), which is disposed on the outer periphery of the roller (220) and distributed along the circumferential direction of the roller (220). The third guiding part (430) is movably connected to the flexible transmission member (300), and the first guiding part (410) and the second guiding part (420) are both disposed opposite to the third guiding part (430).

4. The flexible transmission angle guide structure according to claim 3, characterized in that, The third guide portion (430) includes a groove (431) that extends circumferentially along the roller (220) and is connected end to end. The flexible transmission member (300) slides in cooperation with the groove (431).

5. The flexible transmission angle guide structure according to any one of claims 2-4, characterized in that, The first guide part (410) has a first extension line extending in the direction of the horizontal frame (110), and the second guide part (420) has a second extension line extending in the direction of the vertical frame (120). The first extension line and the second extension line intersect.

6. The flexible transmission angle guide structure according to any one of claims 2-4, characterized in that, The first guide portion (410) includes a first through groove (411), the extension direction of the first through groove (411) is configured to be the extension direction of the horizontal frame (110), and the flexible transmission member (300) slides in cooperation with the first through groove (411). And / or, the second guide portion (420) includes a second through groove (421), the extension direction of which is configured to be the extension direction of the vertical frame (120), and the flexible transmission member (300) slides in cooperation with the second through groove (421).

7. The flexible transmission angle guide structure according to any one of claims 2-4, characterized in that, Both the roller (220) and the flexible transmission member (300) are located on the side of the fixed base (210) away from the corner (130).

8. The flexible transmission angle guide structure according to claim 7, characterized in that, The fixed base (210) is provided with a clearance notch (211), which is configured to face the corner (130), and the roller (220) is located in the clearance notch (211).

9. The flexible transmission angle guide structure according to claim 8, characterized in that, The fixed base (210) also includes a frame (214), and the clearance notch (211) is formed between the end of the first base (212) facing the corner (130) and the end of the second base (213) facing the corner (130). The frame (214) is connected to the first base (212) and the second base (213) respectively, and the roller (220) is rotatably connected to the frame (214).

10. Doors and windows, characterized in that, Including the flexible transmission corner guide structure as described in any one of claims 1-9.

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