Flexible transmission corner guide structure and door and window

Abstract

The invention belongs to the technical field of doors and windows, and discloses a flexible transmission corner guide structure and a door and window, the flexible transmission corner guide structure comprises a corner device and a flexible transmission piece, the corner device comprises a fixed seat, a roller and a guide structure, the fixed seat is used for being connected with the outer wall of a corner, and the roller is rotatably connected to the fixed seat; the axis of the roller is configured to be parallel to the edge of the corner, the flexible transmission part is arranged on the side, away from the corner, of the roller in a crossing mode and is configured to extend in the circumferential direction of the sash frame, and the roller and the guide structure are both movably connected with the flexible transmission part. The guide structure can enable the moving direction of the flexible transmission part located at the transverse frame of the sash frame to be the extending direction of the transverse frame, and the guide structure can enable the moving direction of the flexible transmission part located at the vertical frame of the sash frame to be the extending direction of the vertical frame. According to the flexible transmission corner guide structure, the abrasion and fracture probability of the flexible transmission part can be reduced, and the consistency of the moving track of the flexible transmission part can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of doors and windows, and in particular to a flexible transmission corner guide structure and a door and window. Background Art

[0002] The prior art discloses a transmission structure for a window sash, which includes four transmission rods and four transmission ropes, wherein the four transmission rods are respectively located at the four frames of the window sash, and the four transmission ropes are respectively located at the four corners of the window sash, and the two ends of each transmission rope are respectively connected to a corresponding transmission rod, and the transmission housing, lock rod and other movable parts are connected to the transmission rod, thereby realizing transmission between the movable parts.

[0003] However, after prolonged use, the transmission rope can easily become worn by the corners of the window sash, or even break, preventing the movable parts from transmitting power to each other. Furthermore, when the transmission rope reciprocates at the corners, it can easily shift along the thickness of the window sash, reducing the consistency of the rope's trajectory and, in turn, the transmission accuracy between the movable parts.

[0004] Therefore, it is urgent to propose a door flexible transmission corner guide structure and doors and windows to solve the above technical problems. Summary of the Invention

[0005] The first object of the present invention is to provide a flexible transmission corner guide structure, which can reduce the probability of wear and breakage of the flexible transmission parts and improve the consistency of the movement trajectory of the flexible transmission parts.

[0006] To achieve this object, the present invention adopts the following technical solutions:

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

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

[0009] A flexible transmission member is arranged across the side of the roller away from the corner and is configured to extend along the circumference of the fan frame. The roller and the guide structure are movably connected to the flexible transmission member. The guide structure is configured to make the moving direction of the flexible transmission member located at the horizontal frame of the fan frame the extension direction of the horizontal frame, and the guide structure is configured to make the moving direction of the flexible transmission member located at the vertical frame of the fan frame the extension direction of the vertical frame.

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

[0011] Optionally, the guide structure also includes a third guide portion, which is arranged on the outer periphery of the roller and distributed along the circumference of the roller. The third guide portion is movably connected to the flexible transmission member, and the first guide portion and the second guide portion are both arranged opposite to the third guide portion.

[0012] Optionally, the third guide portion includes a groove, the groove extends along the circumference of the roller and is connected end to end, and the flexible transmission member is in sliding engagement with the groove.

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

[0014] Optionally, the first guide portion includes a first through slot, the extension direction of the first through slot is configured to be the extension direction of the horizontal frame, and the flexible transmission member is slidably engaged with the first through slot;

[0015] And / or, the second guide portion includes a second through slot, the extension direction of the second through slot is configured to be the extension direction of the vertical frame, and the flexible transmission member is slidably engaged with the second through slot.

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

[0017] Optionally, the fixing seat is provided with a avoidance gap, the avoidance gap is configured to be arranged opposite the corner, and the roller is located in the avoidance gap.

[0018] Optionally, the fixed seat also includes a frame, a avoidance gap is formed between one end of the first seat facing the corner and one end of the second seat facing the corner, the frame is connected to the first seat and the second seat respectively, and the roller is rotatably connected to the frame.

[0019] A second object of the present invention is to provide a door and window that can reduce the probability of wear and breakage of the flexible transmission member and improve the consistency of the movement trajectory of the flexible transmission member.

[0020] To achieve this object, the present invention adopts the following technical solutions:

[0021] Doors and windows include the above-mentioned flexible transmission corner guide structure.

[0022] Beneficial effects of the present invention:

[0023] The flexible transmission corner guide structure provided by the present invention is equipped with a corner guide. When the flexible transmission member moves, the roller rotates on the fixed seat, thereby reducing friction between the roller and the flexible transmission member, lowering the chance of wear and breakage of the flexible transmission member. The corner guide structure is movably connected to the flexible transmission member, so that the flexible transmission member located at the horizontal frame moves in the direction of extension of the horizontal frame, and the flexible transmission member located at the vertical frame moves in the direction of extension of the vertical frame, which helps to improve the consistency of the flexible transmission member's movement trajectory. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the doors and windows provided by the present invention;

[0025] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0026] Figure 3 1 is a schematic structural diagram of the angle turner provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the corner turner provided by the present invention;

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

[0029] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0030] In the picture:

[0031] 110. Horizontal frame; 111. First supporting edge; 120. Vertical frame; 130. Corner; 131. Edge; 210. Fixed seat; 211. Avoidance notch; 212. First seat body; 2121. First protrusion; 213. Second seat body; 2131. Second protrusion; 214. Frame; 2141. Frame plate; 220. Roller; 230. Rotating shaft; 300. Flexible transmission member; 410. First guide portion; 411. First through-slot; 420. Second guide portion; 421. Second through-slot; 430. Third guide portion; 431. Groove. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0033] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

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

[0037] Specifically, if Figure 1 and Figure 2As shown, the flexible transmission corner guide structure includes a corner turner and a flexible transmission member 300, wherein the corner turner includes a fixed seat 210, a roller 220 and a guide structure, the fixed seat 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 seat 210, the axis of the roller 220 is configured to be parallel to the edge 131 of the corner 130, the flexible transmission member 300 is arranged across the side of the roller 220 away from the corner 130, and is configured to extend along the circumference of 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 to make the moving direction of the flexible transmission member 300 located at the horizontal frame 110 of the fan frame the extension direction of the horizontal frame 110, and the guide structure is configured to make the moving direction of the flexible transmission member 300 located at the vertical frame 120 of the fan frame the extension 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 along the y direction, that is, the axial direction of the roller 220 is in the y direction.

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

[0040] Optionally, the flexible transmission member 300 includes an element with certain softness and a certain length, such as a steel rope, a steel belt, an aluminum rope or an aluminum belt.

[0041] Alternatively, as Figures 1 to 3As shown, the fixed seat 210 includes a first seat body 212 and a second seat body 213 connected to each other, and the first seat body 212 and the second seat body 213 are both used to connect with 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, and the guide structure includes a first guide portion 410 and a second guide portion 420, the first guide portion 410 is arranged on the first seat body 212, and the first guide portion 410 is configured to extend along the extension direction of the horizontal frame 110, the second guide portion 420 is arranged on the second seat body 213, and the second guide portion 420 is configured to extend along the extension direction of the vertical frame 120, and the first guide portion 410 and the second guide portion 420 are both movably connected to the flexible transmission member 300. The fixing seat 210 guides 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 direction of extension of the horizontal frame 110 is a first extension line, and the extension line of the second guide portion 420 in the direction of extension of the vertical frame 120 is a second extension line, and the first extension line and the second extension line intersect. Consequently, the flexible transmission member 300 does not need to change direction when moving between the first guide portion 410 and the second guide portion 420, thereby 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, and the extension direction of the first through groove 411 is configured to be the extension direction of the horizontal frame 110, that is, the first through groove 411 extends along the x direction, and 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 moving 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, which extends along the extension direction of the horizontal frame 110, that is, the first protrusion extends along the x direction. The number of the first protrusions is two, and the two first protrusions are spaced apart along the axial direction of the roller 220, that is, the two first protrusions are spaced apart along the y direction. The flexible transmission member 300 is slidably arranged 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, which extends along the extension direction of the horizontal frame 110, that is, the first guide channel extends along the x direction. The flexible transmission member 300 is movably arranged in the first guide channel. The first guide channel guides 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.

[0046] Optionally, the second guide portion 420 includes a second through groove 421, and the extension direction of the second through groove 421 is configured to be the extension direction of the vertical frame 120, that is, the second through groove 421 extends along the z direction, and 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 moving 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, which extends along the extension direction of the vertical frame 120, that is, the second protrusion extends along the z direction. The number of the second protrusions is two, and the two second protrusions are spaced apart along the axial direction of the roller 220, that is, the two second protrusions are spaced apart along the y direction. The flexible transmission member 300 is slidably arranged between the two second protrusions, and 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, which extends along the extension direction of the vertical frame 120, that is, the second guide channel extends along the z direction. The flexible transmission member 300 is movably arranged in the second guide channel. The second guide channel guides 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.

[0049] Optionally, the guide 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 the third guide portion 430. When the flexible transmission member 300 passes over the roller 220, the third guide portion 430 guides 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, rather than along the axis 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 helps 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 along the circumference of the roller 220 and is connected end to end. The flexible transmission member 300 slidably engages with the groove 431. The groove 431 limits and guides the flexible transmission member 300 on the roller 220, so that the flexible transmission member 300 on the roller 220 can only slide around the axis of the roller 220.

[0051] In one embodiment, the third guide portion 430 includes a protruding component, which is protruded from the outer periphery of the roller 220. The protruding component can be a ridge extending circumferentially along the roller 220 and connected end to end. The protruding component can also be a plurality of protrusions evenly distributed circumferentially along the roller 220. The number of protruding components is two groups, and the two groups of protruding components are spaced apart along the axial direction of the roller 220, that is, the two groups of protruding components are spaced apart along the y direction. The flexible transmission member 300 is slidably arranged between the two groups of protruding components. The two groups 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] Alternatively, as Figure 2 As shown, the roller 220 and the flexible transmission member 300 are both located on the side of the fixing base 210 away from the corner 130 to simplify the assembly of the fan frame, the corner device and the flexible transmission member 300.

[0053] Alternatively, as Figure 3 As shown, the fixing seat 210 is provided with a avoiding notch 211 , which is configured to be arranged opposite to the corner 130 , and the roller 220 is located in the avoiding notch 211 to reduce the overall volume of the corner turner.

[0054] Furthermore, the fixed base 210 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. The roller 220 is rotatably connected to the frame 214. When manufacturing the corner turner, the first base 212, the second base 213, and the frame 214 can be manufactured separately and then assembled, which helps reduce production difficulty and improve production efficiency.

[0055] Further, if Figure 3 and Figure 4As shown, the frame 214 includes two L-shaped frame plates 2141, and the two frame plates 2141 are arranged at intervals along the axial direction of the roller 220, that is, the two frame plates 2141 are arranged at intervals 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 ends of the two frame plates 2141 are respectively connected to the two sides of the second base 213 in the y direction, and the roller 220 is located between the two frame plates 2141 and is rotatably connected to 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 production difficulty and improves production efficiency.

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

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

[0058] Optionally, the first seat body 212 and the second seat body 213 are both made of alloy material, and the frame plate 2141 is a steel plate. On the one hand, it is convenient for procurement and processing, and on the other hand, it is beneficial to improve the overall structural strength of the fixed seat 210, avoiding the problem of inconsistent moving trajectory of the flexible transmission part 300 due to deformation of the fixed seat 210.

[0059] Alternatively, as Figures 4 to 6 As shown, along the axial direction of the roller 220, first protrusions 2121 are protruded on opposite sides of the first seat body 212, and a first notch is provided on the outer wall of the horizontal frame 110. First supporting ridges 111 are protruded on the inner walls of the first notch on both sides along the axial direction of the roller 220, and each first protrusion 2121 is respectively connected to a corresponding first supporting ridge 111; along the axial direction of the roller 220, second protrusions 2131 are protruded on opposite sides of the second seat body 213, and a second notch is provided on the outer wall of the vertical frame 120. Second supporting ridges (not shown in the figure) are protruded on the inner walls of the second notch on both sides along the axial direction of the roller 220, and each second protrusion 2131 is respectively connected to a corresponding second supporting ridge, thereby realizing the connection between the fixing 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 supporting edge 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 supporting edge. This structure can eliminate the connecting components (such as bolts, etc.) between the fixing seat 210 and the horizontal frame 110, and between the fixing seat 210 and the vertical frame 120, thereby improving the assembly efficiency of doors and windows.

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

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

[0063] This embodiment also provides a door and window, which includes the above-mentioned flexible transmission corner guide structure of the sash frame, and the sash frame includes a horizontal frame 110 and a vertical frame 120. The horizontal frame 110 is connected to the vertical frame 120, and a corner 130 is formed in the connection area. The fixed seat 210 is connected to the outer wall of the corner 130, and 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 moving trajectory of the flexible transmission member 300.

[0064] Furthermore, there are two horizontal frames 110 and two vertical frames 120, which are alternately arranged and connected end to end to form a square fan frame, and there are four corners 130. To further reduce the risk of wear and breakage of the flexible transmission member 300 and further improve the guiding effect of the flexible transmission member 300, each corner 130 is provided with a corner guide.

[0065] Furthermore, the door and window also include multiple movable parts, each located on the horizontal frame 110 and the vertical frame 120. Each movable part is connected to the flexible transmission member 300, and the multiple movable parts are connected to each other through the flexible transmission member 300. The angler located at the corner 130 improves the consistency of the movement trajectory of the flexible transmission member 300, thereby improving the transmission accuracy between the movable parts. The angler also reduces the probability of wear and breakage of the flexible transmission member 300, providing a reliable transmission connection between the movable parts.

[0066] It should be noted that the above-mentioned movable parts refer to hardware that can move back and forth relative to the outer wall of the sash frame, such as the transmission housing, locking rod, side pressure lower pulley, side pressure upper pulley and side pressure lock hook commonly found on window sashes, which will not be listed one by one here.

[0067] It should also be noted that the above-mentioned doors and windows refer to doors and windows in general, that is, the above-mentioned doors and windows can refer to both doors and windows. The above-mentioned sash frames are a general term for door sash frames and window sash frames, that is, the above-mentioned sash frames can refer to both door sash frames and window sash frames.

[0068] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A flexible transmission corner guide structure, characterized in that: include: A corner turner, comprising a fixing seat (210), a roller (220), and a guide structure, wherein the fixing seat (210) is used to be connected to the outer wall of the corner (130) of the fan frame, the roller (220) is rotatably connected to the fixing seat (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), the flexible transmission member (300) is arranged across the side of the roller (220) away from the corner (130), and is configured to extend along the circumference of 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 to make the moving direction of the flexible transmission member (300) located at the horizontal frame (110) of the fan frame the extension direction of the horizontal frame (110), and the guide structure is configured to make the moving direction of the flexible transmission member (300) located at the vertical frame (120) of the fan frame the extension direction of the vertical frame (120).

2. The flexible transmission corner 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. The first seat body (212) and the second seat body (213) are both 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). The first guide portion (410) is provided on the first base (212), and the first guide portion (410) is configured to extend along the extension direction of the horizontal frame (110). The second guide portion (420) is provided on the second base (213), and the second guide portion (420) 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 corner guide structure according to claim 2, characterized in that: The guide structure further includes a third guide portion (430), which is arranged 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 arranged opposite to the third guide portion (430).

4. The flexible transmission corner guide structure according to claim 3, characterized in that: The third guide portion (430) includes a groove (431), the groove (431) extending along the circumference of the roller (220) and connected end to end, and the flexible transmission member (300) is slidably engaged with the groove (431).

5. The flexible transmission corner guide structure according to any one of claims 2 to 4, characterized in that: An extension line of the first guide portion (410) in the extension direction of the horizontal frame (110) is a first extension line, and an extension line of the second guide portion (420) in the extension direction of the vertical frame (120) is a second extension line, and the first extension line intersects with the second extension line.

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

7. The flexible transmission corner guide structure according to any one of claims 2 to 4, characterized in that: The roller (220) and the flexible transmission member (300) are both located on a side of the fixing seat (210) facing away from the corner (130).

8. The flexible transmission corner guide structure according to claim 7, characterized in that: The fixing seat (210) is provided with a position-avoiding notch (211), the position-avoiding notch (211) is configured to be arranged directly opposite the corner (130), and the roller (220) is located in the position-avoiding notch (211).

9. The flexible transmission corner guide structure according to claim 8, characterized in that: The fixed seat (210) further includes a frame (214), wherein the avoidance gap (211) is formed between one end of the first seat (212) facing the corner (130) and one end of the second seat (213) facing the corner (130), and the frame (214) is respectively connected to the first seat (212) and the second seat (213), and the roller (220) is rotatably connected to the frame (214).

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

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