Corner guiding structure and door and window

Abstract

The utility model belongs to door and window technical field discloses a corner guide structure and door and window, corner guide structure includes guide piece and flexible transmission part, guide piece includes first guide portion, first guide portion is used for with the outer corner portion of sash frame of door and window is connected, the side of first guide portion is equipped with first guide groove away from outer corner portion, first guide groove is through groove, the extension direction of first guide groove one end is configured as the extension direction of horizontal frame of sash frame, the extension direction of first guide groove other end is configured as the extension direction of vertical frame of sash frame, flexible transmission part is set up by first guide groove to the extension of sash frame's periphery, part flexible transmission part and first guide groove slide fit, first guide groove is the flexible transmission part at the outer corner and has played the guiding effect, has reduced the probability of the deflection of flexible transmission part when moving along the sash frame circumference.

Description

Technical Field

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

[0002] Movable hardware such as transmission housings, locking rods, side-pressure lower pulleys, and side-pressure upper pulleys are often installed on the sash frames of doors and windows. Adjacent movable hardware components are connected by a transmission system.

[0003] The prior art discloses a transmission system including four rigid transmission rods and four flexible transmission components. The four rigid transmission rods are arranged along the four sash frames of a rectangular window sash, and each rigid transmission rod is connected to a movable hardware component. The four flexible transmission components are respectively located at the four corners of the rectangular window sash. Adjacent rigid transmission rods are connected through the flexible transmission components between them, thereby realizing the transmission connection of the movable hardware components.

[0004] In practical applications, flexible transmission components are prone to deviation when moving at corners, which reduces the transmission accuracy of the two rigid transmission rods connected to the flexible transmission component, and consequently reduces the transmission accuracy between the movable hardware on the two rigid transmission rods.

[0005] Therefore, there is an urgent need to propose a corner guide structure and doors / windows to solve the above-mentioned technical problems. Utility Model Content

[0006] The first objective of this invention is to provide a corner guide structure, wherein the guide component of the corner guide structure can guide the flexible transmission component at the outer corner.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Corner guide structure, including:

[0009] The guide includes a first guide portion for connecting with the outer corner portion of the sash frame of a door or window. The first guide portion has a first guide groove on the side opposite to the outer corner portion. The first guide groove is a through groove. The extension direction of one end of the first guide groove is configured to be the extension direction of the horizontal frame of the sash frame, and the extension direction of the other end of the first guide groove is configured to be the extension direction of the vertical frame of the sash frame.

[0010] A flexible transmission component extends from the first guide groove to the periphery of the sector frame, and part of the flexible transmission component slides in conjunction with the first guide groove.

[0011] Optionally, the guide member further includes a second guide portion and a third guide portion, which are respectively connected to both ends of the first guide portion. The second guide portion is connected to at least a portion of the outer wall of the horizontal frame, and the third guide portion is connected to at least a portion of the outer wall of the vertical frame.

[0012] Optionally, the second guide part is provided with a second guide groove, the extension direction of the second guide groove is the same as the extension direction of the horizontal frame, the second guide groove is a through groove and one end is connected to the first guide groove, and some flexible transmission components slide in cooperation with the second guide groove.

[0013] The third guide section is provided with a third guide groove. The extension direction of the third guide groove is the same as the extension direction of the vertical frame. The third guide groove is a through groove and one end is connected to the first guide groove. Some flexible transmission components slide in cooperation with the third guide groove.

[0014] Optionally, the number of flexible transmission components, the first guide groove, the second guide groove, and the third guide groove are all at least two and correspond one-to-one.

[0015] Optionally, the thickness direction of the fan frame is the distribution direction, and all the first guide grooves are evenly distributed on the first guide part along the distribution direction; or, all the first guide grooves are symmetrically arranged about the middle of the first guide part in the distribution direction.

[0016] Optionally, the outer wall of the horizontal frame is provided with a first clearance groove, the extension direction of the first clearance groove is the same as the extension direction of the horizontal frame, the second guide portion covers the groove opening at one end of the first clearance groove facing the outer corner, the outer wall of the vertical frame is provided with a second clearance groove, the extension direction of the second clearance groove is the same as the extension direction of the vertical frame, the third guide portion covers the groove opening at one end of the second clearance groove facing the outer corner, and the bottom of the first clearance groove and the bottom of the second clearance groove are both spaced apart from the flexible transmission component.

[0017] Optionally, the guide further includes two first protrusions and two second protrusions, with the thickness direction of the fan frame being the distribution direction. The two first protrusions protrude from the two side walls of the second guide in the distribution direction. The inner walls of the opposite sides of the first relief groove are provided with first connecting portions. Each first protrusion is connected to a corresponding first connecting portion on the side away from the bottom of the first relief groove. The two second protrusions protrude from the two side walls of the third guide in the distribution direction. The inner walls of the opposite sides of the second relief groove are provided with second connecting portions. Each second protrusion is connected to a corresponding second connecting portion on the side away from the bottom of the second relief groove.

[0018] Optionally, the bottom and inner wall of the first guide groove are provided with a first lubricating layer, the bottom and inner wall of the second guide groove are provided with a second lubricating layer, and the bottom and inner wall of the third guide groove are provided with a third lubricating layer.

[0019] Optionally, the side of the first guide portion away from the outer corner portion has an arc-shaped structure.

[0020] The second objective of this utility model is to provide a door or window whose flexible transmission component has high transmission accuracy.

[0021] To achieve this objective, the present invention adopts the following technical solution:

[0022] The door / window includes a sash frame and the aforementioned corner guide structure. The sash frame includes a horizontal frame and a vertical frame, which are connected to form an outer corner and an inner corner in the connecting area. A first guide portion is connected to the outer corner, and a first guide groove is located on the side of the first guide portion opposite to the outer corner. One end of the first guide groove extends in the direction of the horizontal frame, and the other end extends in the direction of the vertical frame.

[0023] The beneficial effects of this utility model are:

[0024] The corner guide structure provided by this utility model includes a guide member. The first guide part of the guide member is connected to the outer corner of the fan frame. The first guide part is provided with a first guide groove on the side opposite to the outer corner. The first guide groove is a through groove. The extension direction of one end of the first guide groove is configured to be the extension direction of the horizontal frame of the fan frame, and the extension direction of the other end is configured to be the extension direction of the vertical frame of the fan frame. A flexible transmission member extends from the first guide groove to the periphery of the fan frame. A portion of the flexible transmission member slides in the first guide groove. The first guide groove plays a guiding role for the flexible transmission member at the outer corner, reducing the probability of the flexible transmission member deviating when moving along the circumference of the fan frame, thereby improving the transmission accuracy of the flexible transmission member. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of the door and window provided by this utility model;

[0026] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the assembly structure of the guide component and the flexible transmission structure provided by this utility model;

[0028] Figure 4 This is a first structural schematic diagram of the guide component provided by this utility model;

[0029] Figure 5 This is a schematic diagram of the second structure of the guide component provided by this utility model.

[0030] In the picture:

[0031] 110. Horizontal frame; 111. First clearance groove; 112. First connecting part; 120. Outer corner part; 130. Vertical frame; 131. Second clearance groove; 132. Second connecting part; 200. Guide member; 210. First guide part; 211. First guide groove; 220. Second guide part; 221. Second guide groove; 230. Third guide part; 231. Third guide groove; 241. First protrusion; 242. Second protrusion; 243. Third protrusion; 250. Limiting part; 300. Flexible transmission member. 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 corner guide structure, in which the guide component can guide the flexible transmission component at the outer corner.

[0037] Specifically, such as Figures 1 to 5 As shown, the corner guide structure includes a guide member 200 and a flexible transmission member 300. The outer corner portion 120 and the outer corner portion 120 guide member 200 include a first guide portion 210, which is connected to the outer corner portion 120 of the door and window frame. The first guide portion 210 has a first guide groove 211 on the side opposite to the outer corner portion 120. The first guide groove 211 is a through groove. The extension direction of one end of the first guide groove 211 is configured to be the extension direction of the horizontal frame 110 of the window frame, and the extension direction of the other end of the first guide groove 211 is configured to be the extension direction of the vertical frame 130 of the window frame. The flexible transmission member 300 extends from the first guide groove 211 to the periphery of the window frame, and part of the flexible transmission member 300 slides with the first guide groove 211.

[0038] Multiple movable parts of the door and window are respectively movably mounted on the first frame 110 and the second frame 130. All the movable parts are connected to the flexible transmission member 300 so that the multiple movable parts are connected by transmission through the flexible transmission member 300.

[0039] The corner guide structure includes a guide member 200. The first guide portion 210 of the guide member 200 is connected to the outer corner portion 120 of the fan frame. The first guide portion 210 has a first guide groove 211 on the side opposite to the outer corner portion 120. The first guide groove 211 is a through groove, and the extension direction of one end of the first guide groove 211 is configured to be the extension direction of the horizontal frame 110 of the fan frame, and the extension direction of the other end is configured to be the extension direction of the vertical frame 130 of the fan frame. The flexible transmission member 300 extends from the first guide groove 211 to the periphery of the fan frame, and part of the flexible transmission member 300 slides in the first guide groove 211. The first guide groove 211 plays a guiding role for the flexible transmission member 300 at the outer corner, reducing the probability of the flexible transmission member 300 deviating when moving along the circumference of the fan frame, thereby improving the transmission accuracy between the movable member on the horizontal frame 110 and the movable member on the vertical frame 130.

[0040] The flexible transmission component 300 can be a component with certain flexibility, such as a steel rope, aluminum rope, steel belt, aluminum belt, or synchronous belt.

[0041] The number of moving parts can be two, three, five or more. The number of moving parts on the horizontal frame 110 and the vertical frame 130 can be the same or different. The types of moving parts on the horizontal frame 110 and the vertical frame 130 can be the same or different. Furthermore, the types of moving parts are different on different types of doors and windows. Taking a side-press window as an example, the moving parts can be a transmission housing, a locking rod, a side-press lower pulley, a side-press upper pulley, and a side-press lock hook, etc. Taking an inward-opening and tilt-and-turn window as an example, the moving parts can be a transmission housing, a locking rod, and a tilting lock pin, etc.

[0042] In this embodiment, the fan frame is roughly square in shape, with two horizontal frame 110 and two vertical frame 130. The two horizontal frame 110 and the two vertical frame 130 are alternately arranged. Each horizontal frame 110 and the vertical frame 130 are connected by a corresponding outer corner portion 120 and an inner corner portion. Therefore, there are four outer corner portions 120. There are also four guide members 200, and each guide member 200 corresponds to one outer corner portion 120.

[0043] Optionally, the guide member 200 further includes a second guide portion 220 and a third guide portion 230. The second guide portion 220 and the third guide portion 230 are respectively connected to both ends of the first guide portion 210. The second guide portion 220 is connected to at least a portion of the outer wall of the horizontal frame 110, and the third guide portion 230 is connected to at least a portion of the outer wall of the vertical frame 130. The arrangement of the second guide portion 220 and the third guide portion 230 increases the connection area between the guide member 200 and the fan frame, thereby improving the stability of the connection between the guide member 200 and the fan frame, reducing the probability of displacement of the guide member 200 relative to the fan frame during the movement of the flexible transmission member 300, and providing a guarantee for the consistency of the movement trajectory of the flexible transmission member 300.

[0044] In this embodiment, a portion of the outer corner portion 120 in the x-direction is connected to the first guide portion 210; a portion of the horizontal frame 110 in the x-direction is connected to the second guide portion 220, and further in the extending direction of the horizontal frame 110, a portion of the horizontal frame 110 is connected to the second guide portion 220; a portion of the vertical frame 130 in the x-direction is connected to the third guide portion 230, and further in the extending direction of the vertical frame 130, a portion of the vertical frame 130 is connected to the third guide portion 230. Of course, in other embodiments, the entire outer corner portion 120 may be connected to the first guide portion 210, the entire horizontal frame 110 to the second guide portion 220, and the entire vertical frame 130 to the third guide portion 230. The specific connection depends on the actual dimensions of the fan frame and the guide member 200, and will not be elaborated here.

[0045] Furthermore, the second guide portion 220 has a second guide groove 221 on the side opposite to the horizontal frame 110. The extension direction of the second guide groove 221 is the same as the extension direction of the horizontal frame 110. The second guide groove 221 is a through groove and one end is connected to the first guide groove 211. A portion of the flexible transmission member 300 slides in cooperation with the second guide groove 221 along the extension direction of the second guide groove 221, so that the second guide groove 221 guides the flexible transmission member 300 at the horizontal frame 110. The third guide portion 230 has a third guide groove 231 on the side opposite to the vertical frame 130. The extension direction of the guide groove 231 is the same as the extension direction of the vertical frame 130. The third guide groove 231 is a through groove and one end is connected to the first guide groove 211. Some flexible transmission components 300 slide and cooperate with the third guide groove 231 along the extension direction of the third guide groove 231 so that the third guide groove 231 plays a guiding role for the flexible transmission components 300 at the vertical frame 130, further reducing the probability of the flexible transmission components 300 deviating when moving along the circumference of the fan frame, and further improving the transmission accuracy between the movable components located on the horizontal frame 110 and the movable components located on the vertical frame 130.

[0046] Optionally, the second guide portion 220 is parallel to the horizontal frame 110, and the third guide portion 230 is parallel to the vertical frame 130, so as to improve the overall structural consistency of the guide member 200.

[0047] Optionally, the bottom and inner wall of the first guide groove 211 are provided with a first lubricating layer (not shown in the figure), the bottom and inner wall of the second guide groove 221 are provided with a second lubricating layer (not shown in the figure), and the bottom and inner wall of the third guide groove 231 are provided with a third lubricating layer (not shown in the figure), thereby reducing the friction between the flexible transmission component 300 and the first guide groove 211, the second guide groove 221, and the third guide groove 231, and avoiding the problem of wear and tear on the flexible transmission component 300 after long-term use.

[0048] The first, second, and third lubricating layers can be lubricating oil, grease, graphite, or polytetrafluoroethylene, etc., and the types of the first, second, and third lubricating layers can be the same or different, depending on the actual application.

[0049] Optionally, the number of flexible transmission components 300, the first guide groove 211, the second guide groove 221, and the third guide groove 231 are all at least two and correspond one-to-one. In this embodiment, there are two flexible transmission components 300. Of course, in other embodiments, the number of flexible transmission components 300 can also be three, four, or five, depending on the actual application. Using multiple flexible transmission components 300 can avoid the problem of transmission failure between moving parts due to the breakage of a single flexible transmission component 300, thus improving the reliability of the transmission connection between the moving parts. In addition, the number of the first guide groove 211, the second guide groove 221, and the third guide groove 231 is equal to the number of flexible transmission components 300 and corresponds one-to-one, so that the guide component 200 can provide a guiding function for each flexible transmission component 300, ensuring the transmission accuracy between the moving parts located on the horizontal frame 110 and the moving parts located on the vertical frame 130.

[0050] Furthermore, the thickness direction of the fan frame is the distribution direction (i.e., the x-direction in the figure). All the first guide grooves 211 are evenly distributed on the first guide portion 210 along the distribution direction. The flexible transmission member 300, which slides with the first guide groove 211, the second guide groove 221, and the third guide groove 231, applies a force toward the fan frame direction to the guide member 200. Specifically, the flexible transmission member 300 located in the first guide groove 211 applies a force toward the outer corner portion 120 to the first guide portion 210, the flexible transmission member 300 located in the second guide groove 221 applies a force toward the horizontal frame 110 to the second guide portion 220, and the flexible transmission member 300 located in the third guide groove 211 applies a force toward the horizontal frame 110 to the second guide portion 220. The flexible transmission component 300 within 31 applies a force toward the vertical frame 130 to the third guide portion 230. Therefore, the structure in which all the first guide grooves 211 are evenly distributed on the first guide portion 210 along the distribution direction allows all the flexible transmission components 300 to be evenly distributed on the guide component 200 along the distribution direction. This results in a more uniform force on the guide component 200 in the distribution direction, reducing the probability of displacement of the guide component 200 relative to the fan frame. This ensures the consistency of the movement trajectory of multiple flexible transmission components 300, and further ensures the transmission accuracy between the movable component located on the horizontal frame 110 and the movable component located on the vertical frame 130.

[0051] In one embodiment, all the first guide grooves 211 are symmetrically arranged about the center of the first guide portion 210 in the distribution direction to improve the uniformity of the force on the guide member 200 in the distribution direction.

[0052] Optionally, the outer wall of the horizontal frame 110 is provided with a first clearance groove 111, the extension direction of the first clearance groove 111 is the same as the extension direction of the horizontal frame 110, the second guide portion 220 covers the groove opening of the first clearance groove 111 facing the outer corner portion 120, the outer wall of the vertical frame 130 is provided with a second clearance groove 131, the extension direction of the second clearance groove 131 is the same as the extension direction of the vertical frame 130, the third guide portion 230 covers the groove opening of the second clearance groove 131 facing the outer corner portion 120, the bottom of the first clearance groove 111 and the bottom of the second clearance groove 131 are both spaced apart from the flexible transmission member 300, so as to avoid the horizontal frame 110 and the vertical frame 130 scraping the flexible transmission member 300, and thus protect the flexible transmission member 300.

[0053] Furthermore, the guide member 200 also includes two first protrusions 241 and two second protrusions 242. The two first protrusions 241 are respectively protruding from the two side walls of the second guide member 220 in the distribution direction. The two inner walls of the first relief groove 111 are each provided with a first connecting part 112. Each first protrusion 241 is connected to the side of the corresponding first connecting part 112 away from the bottom of the first relief groove 111. The two second protrusions 242 are respectively protruding from the two side walls of the third guide member 230 in the distribution direction. The two inner walls of the second relief groove 131 are each provided with a second connecting part 132. Each second protrusion 242 is connected to the side of the corresponding second connecting part 132 away from the bottom of the second relief groove 131, thereby realizing the connection between the guide member 200 and the fan frame.

[0054] Furthermore, the guide member 200 also includes two third protrusions 243, which are respectively protruding from the two side walls of the first guide member 210 in the distribution direction. The outer wall of the outer corner member 120 is provided with an assembly groove (not shown in the figure). The two ends of the assembly groove are respectively connected to the first clearance groove 111 and the second clearance groove 131. The inner walls of both sides of the assembly groove are provided with third connecting parts (not shown in the figure). Each third protrusion 243 is respectively connected to the side of the corresponding third connecting part away from the bottom of the assembly groove, thereby increasing the connection area between the guide member 200 and the fan frame and improving the reliability and stability of their connection.

[0055] Furthermore, both the first protrusion 241 and the second protrusion 242 are connected to the third protrusion 243, and the surface of the second protrusion 242 facing away from the third protrusion 243 is flush with the surface of the third guide 230 facing away from the first guide 210. The surface of the first protrusion 241 facing away from the third protrusion 243 is flush with the surface of the second guide 220 facing away from the first guide 210. This increases the connection area between the first protrusion 241 and the first connecting portion 112, as well as the connection area between the second protrusion 242 and the second connecting portion 132, further improving the reliability and stability of the connection between the guide member 200 and the fan frame.

[0056] Optionally, the first protrusion 241 is bonded and fixed to the first connecting portion 112, the second protrusion 242 is bonded and fixed to the second connecting portion 132, and the third protrusion 243 is bonded and fixed to the third connecting portion. Of course, in other embodiments, the bonding structure can be omitted, and bolts or screws can be used to connect the first protrusion 241 to the first connecting portion 112, the second protrusion 242 to the second connecting portion 132, and the third protrusion 243 to the third connecting portion. Alternatively, the force applied by the flexible transmission member 300 to the guide member 200 in the direction of the fan frame can be used to make the first protrusion 241 abut against the first connecting portion 112, the second protrusion 242 abut against the second connecting portion 132, and the third protrusion 243 abut against the third connecting portion.

[0057] In one embodiment, the first guide portion 210 is bonded and fixed to the outer wall of the outer corner portion 120, the second guide portion 220 is bonded and fixed to the outer wall of the horizontal frame 110, and the third guide portion 230 is bonded and fixed to the outer wall of the vertical frame 130.

[0058] Optionally, the side of the first guide portion 210 away from the outer corner portion 120 is an arc-shaped structure, so that the first guide groove 211 is an arc-shaped groove, thereby reducing the force on the flexible transmission member 300 located in the first guide groove 211, so that the flexible transmission member 300 can slide more smoothly in the first guide groove 211.

[0059] Furthermore, both the third protrusion 243 and the third connecting portion are arc-shaped structures, and the shapes of the third protrusion 243 and the third connecting portion are adapted to the shape of the first guide portion 210, so as to improve the overall structural consistency of the guide member 200 and also improve the stability of the connection between the third protrusion 243 and the third connecting portion.

[0060] Optionally, the outer corner portion 120 is provided with a limiting portion 250, which abuts against the side of the first guide portion 210 away from the outer corner portion 120 to prevent the guide member 200 from falling off the fan frame.

[0061] This embodiment also provides a door and window, which includes a sash frame and the aforementioned corner guide structure. The sash frame includes a horizontal frame 110 and a vertical frame 130, which are connected. An outer corner portion 120 and an inner corner portion are formed in the connected area. A first guide portion 210 is connected to the outer corner portion 120, and a first guide groove 211 is located on the side of the first guide portion 210 away from the outer corner portion 120. The extension direction of one end of the first guide groove 211 is the extension direction of the horizontal frame 110, and the extension direction of the other end is the extension direction of the vertical frame 130. This door and window uses the aforementioned corner guide structure, and the guide member 200 can provide good guidance for the flexible transmission member 300, improving the consistency of the movement trajectory of the flexible transmission member 300, and thus improving the transmission accuracy between the moving parts of the door and window.

[0062] It should 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. The term "sash frame" refers to both door and window sash frames collectively; that is, it can refer to either door or window sash frames.

[0063] 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 corner guide structure, characterized in that, include: A guide member (200) includes a first guide portion (210) for connecting with the outer corner portion (120) of the sash frame of a door or window. The first guide portion (210) has a first guide groove (211) on the side away from the outer corner portion (120). The first guide groove (211) is a through groove. The extension direction of one end of the first guide groove (211) is configured to be the extension direction of the horizontal frame (110) of the sash frame, and the extension direction of the other end of the first guide groove (211) is configured to be the extension direction of the vertical frame (130) of the sash frame. A flexible transmission component (300) is provided extending from the first guide groove (211) to the periphery of the fan frame, and a portion of the flexible transmission component (300) slides in cooperation with the first guide groove (211).

2. The corner guide structure according to claim 1, characterized in that, The guide member (200) further includes a second guide portion (220) and a third guide portion (230), the second guide portion (220) and the third guide portion (230) being connected to both ends of the first guide portion (210), the second guide portion (220) being connected to at least a portion of the outer wall of the horizontal frame (110), and the third guide portion (230) being connected to at least a portion of the outer wall of the vertical frame (130).

3. The corner guide structure according to claim 2, characterized in that, The second guide portion (220) is provided with a second guide groove (221). The extension direction of the second guide groove (221) is the same as the extension direction of the horizontal frame (110). The second guide groove (221) is a through groove and one end is connected to the first guide groove (211). Part of the flexible transmission member (300) is slidably engaged with the second guide groove (221). The third guide part (230) is provided with a third guide groove (231). The extension direction of the third guide groove (231) is the same as the extension direction of the vertical frame (130). The third guide groove (231) is a through groove and one end is connected to the first guide groove (211). Part of the flexible transmission member (300) is slidably engaged with the third guide groove (231).

4. The corner guide structure according to claim 3, characterized in that, The number of each of the flexible transmission component (300), the first guide groove (211), the second guide groove (221), and the third guide groove (231) is at least two and they correspond one-to-one.

5. The corner guide structure according to claim 4, characterized in that, The thickness direction of the fan frame is the distribution direction, and all the first guide grooves (211) are evenly distributed on the first guide portion (210) along the distribution direction; or, all the first guide grooves (211) are symmetrically arranged about the middle of the first guide portion (210) in the distribution direction.

6. The corner guide structure according to claim 3, characterized in that, The outer wall of the horizontal frame (110) is provided with a first clearance groove (111), the extension direction of the first clearance groove (111) is the same as the extension direction of the horizontal frame (110), the second guide part (220) covers the slot of the first clearance groove (111) facing the outer corner part (120), the outer wall of the vertical frame (130) is provided with a second clearance groove (131), the extension direction of the second clearance groove (131) is the same as the extension direction of the vertical frame (130), the third guide part (230) covers the slot of the second clearance groove (131) facing the outer corner part (120), the bottom of the first clearance groove (111) and the bottom of the second clearance groove (131) are both spaced apart from the flexible transmission member (300).

7. The corner guide structure according to claim 6, characterized in that, The guide member (200) further includes two first protrusions (241) and two second protrusions (242). The thickness direction of the fan frame is the distribution direction. The two first protrusions (241) are respectively protruding on the two side walls of the second guide member (220) in the distribution direction. The inner walls of the opposite sides of the first clearance groove (111) are each provided with a first connecting part (112). Each first protrusion (241) is respectively connected to the side of the corresponding first connecting part (112) away from the bottom of the first clearance groove (111). The two second protrusions (242) are respectively protruding on the two side walls of the third guide member (230) in the distribution direction. The inner walls of the opposite sides of the second clearance groove (131) are each provided with a second connecting part (132). Each second protrusion (242) is respectively connected to the side of the corresponding second connecting part (132) away from the bottom of the second clearance groove (131).

8. The corner guide structure according to claim 3, characterized in that, The bottom and inner wall of the first guide groove (211) are provided with a first lubricating layer, the bottom and inner wall of the second guide groove (221) are provided with a second lubricating layer, and the bottom and inner wall of the third guide groove (231) are provided with a third lubricating layer.

9. The corner guide structure according to any one of claims 1-8, characterized in that, The side of the first guide portion (210) away from the outer corner portion (120) has an arc-shaped structure.

10. Doors and windows, characterized in that, The system includes a fan frame and a corner guide structure as described in any one of claims 1-9. The fan frame includes a horizontal frame (110) and a vertical frame (130). The horizontal frame (110) is connected to the vertical frame (130) and forms an outer corner portion (120) and an inner corner portion in the connected area. The first guide portion (210) is connected to the outer corner portion (120). The first guide groove (211) is located on the side of the first guide portion (210) away from the outer corner portion (120). The extension direction of one end of the first guide groove (211) is the extension direction of the horizontal frame (110), and the extension direction of the other end is the extension direction of the vertical frame (130).

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