Windproof buckle and door and window structure

Abstract

The invention discloses a windproof buckle and a door and window structure, and belongs to the technical field of doors and windows. The windproof buckle is arranged between frames of two door leaves of the door and window structure or arranged between a frame of a door and window of the door and window structure and a frame of a door frame used for installing the door leaves, the sealing strip extends in the length direction of the frames, and when the door leaves are in a closed state, the two frames are connected in a sealed mode through the sealing strip. A connecting part is arranged on the frame, and the connecting part and the sealing strip are arranged in the thickness direction of the frame; the windproof buckle comprises a first base, a second base and connecting parts correspondingly arranged on the two frames, a lock catch is arranged on the first base, a lock groove is formed in the second base, and when the door leaf is in a closed state, the lock catch is embedded in the lock groove, so that the problems that the middle of the door leaf misplaces or even deforms and the like are solved, and the sealing performance and the heat preservation performance of the door and window structure are guaranteed.

Description

Technical Field

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

[0002] As people's quality of life continues to improve, they have a higher standard for their living environment and a higher standard for the appearance of doors and windows. Folding doors are widely used due to their aesthetics and wide viewing angles. In related art, folding doors include door leaves and a sealing strip between two adjacent door leaves to ensure a tight seal when the folding door is closed. As the door leaves increase in height, a middle hinge is added between the two door leaves to prevent misalignment or even deformation. However, this middle hinge can break the sealing strip, resulting in a decrease in the sealing and thermal insulation properties of the folding door. Summary of the Invention

[0003] The purpose of the present invention is to provide a windproof buckle and a door and window structure to prevent problems such as misalignment or even deformation in the middle of a door leaf, thereby ensuring the sealing and heat preservation properties of the door and window structure.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A windproof buckle is provided between the frames of two door leaves of a door and window structure, or between the frame of the door leaf of the door and the frame of a door frame for mounting the door leaf of the door and window structure, wherein a sealing strip extends along the length direction of the frame, and when the door leaf is in a closed state, the two frames are sealed and connected by the sealing strip; a connecting portion is provided on the frame, and the connecting portion and the sealing strip are arranged along the thickness direction of the frame;

[0006] The windproof buckle includes a first base and a second base, which are corresponding to the connecting parts of the two frames. The first base is provided with a lock buckle, and the second base is provided with a lock slot. When the door leaf is in a closed state, the lock buckle is engaged in the lock slot.

[0007] In some possible embodiments, the plane in the middle of the windproof buckle along the first direction is a first symmetry plane, the first base, the lock buckle, the second base and the lock slot are all symmetrical along the first symmetry plane, and the first direction is parallel to the length direction of the frame.

[0008] In some possible embodiments, the first base and the second base are each provided with one or more mounting holes, the first base and the second base are both connected to the connecting portion through the mounting holes, and the one or more mounting holes are symmetrical along the first symmetry plane.

[0009] In some possible embodiments, a side of the first base facing away from the lock buckle and a side of the second base facing away from the lock slot are both provided with a mounting structure connected to the connecting portion; when the lock buckle is embedded in the lock slot, the first base and the second base form a second symmetry plane along the plane therebetween, and the mounting structure on the first base and the mounting structure on the second base are symmetrical along the second symmetry plane.

[0010] In some possible embodiments, the mounting structure includes a hook and a boss arranged along the second direction, the groove of the hook faces the boss, and the second direction is parallel to the thickness direction of the frame; the connecting portion is provided with a protrusion and a groove, the hook hooks the protrusion; the boss is arranged in the groove.

[0011] In some possible implementations, the lock buckle and the first base are an integrally formed structure.

[0012] In some possible implementations, the lock includes a roller and a mounting shaft, the first base includes a support portion, the roller is sleeved on and rotatably connected to the mounting shaft, and the mounting shaft is provided on the support portion.

[0013] In some possible implementations, an inner sidewall of the locking slot is provided with an inclined guide surface, so that the slot opening width of the locking slot is greater than the slot bottom width.

[0014] In some possible implementations, the frame includes two mounting profiles arranged along the thickness direction of the frame and a heat insulation strip provided between the two mounting profiles, and the joint between the heat insulation strip and the mounting profile forms the connecting portion.

[0015] A door and window structure, comprising two frames and at least one windproof buckle as described in any one of the above items, wherein the windproof buckle is arranged between the frames of the two door leaves of the door and window structure or between the frames of the door leaves and the frame of the door frame for mounting the door leaves;

[0016] The first base and the second base of the windproof buckle are respectively arranged at the connecting parts of the two frame frames. When the door leaf is in a closed state, the lock buckle on the first base is engaged with the lock groove on the second base.

[0017] In some possible implementations, the door and window structure further includes two hinges, wherein the two hinges are provided between the two frames along the length direction of the frames, and at least one windproof buckle is provided between the two hinges.

[0018] Beneficial effects of the present invention:

[0019] The present invention provides a windproof buckle and door and window structure. On the one hand, by installing the windproof buckle between two door leaves or between a door leaf and a door frame, when the door leaf is in a closed state, the lock buckle is engaged with the lock groove. The windproof buckle is used to connect the two door leaves or the door leaf and the door frame, replacing the middle hinge, and can play a role in resisting wind pressure and effectively preventing problems such as misalignment or even deformation in the middle of the door leaf. On the other hand, since the connecting portion and the sealing strip are arranged along the thickness direction of the frame, after the windproof buckle and the connecting portion are connected, the windproof buckle and the sealing strip are arranged along the thickness direction of the frame, and the windproof buckle can be installed without disconnecting the sealing strip, that is, the installation of the windproof buckle does not require disconnecting the sealing strip, thereby ensuring the sealing and thermal insulation of the door and window structure. In addition, compared with installing a middle hinge on the door leaf, the windproof buckle is located in the middle position of the two frames along the thickness direction, avoiding being exposed outside the door and window structure, making the visible surface simpler and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of a windproof buckle provided by a specific embodiment of the present invention;

[0021] Figure 2 is a cross-sectional view of a windproof buckle and a fastener in a connected state provided by a specific embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of a windproof buckle provided by a specific embodiment of the present invention installed on a door and window structure and in a fitted state;

[0023] Figure 4 is a schematic diagram of a door and window structure in an open state provided by a specific embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of a door and window structure in a closed state using another type of thermal insulation strip provided by a specific embodiment of the present invention;

[0025] Figure 6 It is an exploded view of another windproof buckle provided by a specific embodiment of the present invention.

[0026] In the picture:

[0027] 1. Frame; 11. Connecting portion; 111. Boss; 112. Protrusion; 12. Mounting profile; 13. Thermal insulation strip;

[0028] 2. Sealing strip; 21. First sealing strip; 22. Second sealing strip;

[0029] 3. Windproof buckle; 31. First base; 311. Bottom plate; 312. Mounting structure; 3121. Hook; 3122. Boss; 313. Mounting hole; 3131. Waist-shaped hole; 3132. Long hole; 314. Support portion; 32. Locking buckle; 321. Roller; 322. Mounting shaft; 33. Second base; 331. Avoidance groove; 34. Locking groove; 35. Protrusion; 351. Guide surface;

[0030] 4. Hinge;

[0031] 5. Fasteners;

[0032] A. First symmetry plane; B. Second symmetry plane. DETAILED DESCRIPTION

[0033] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] 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.

[0035] 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.

[0036] like Figure 1-Figure 4 As shown, this embodiment provides a door and window structure and a windproof buckle 3. For example, the door and window structure can be a folding door or a flat door, etc., without limitation.

[0037] In one embodiment, the door and window structure is a folding door, comprising two door leaves. A windproof buckle 3 is disposed between the frame 1 of the two door leaves of the door and window structure. A sealing strip 2 extends along the length of the frame 1. When the door leaves are closed, the frames 1 of the two door leaves are sealed together by the sealing strip 2. A connecting portion 11 is provided on the frame 1. The connecting portion 11 and the sealing strip 2 are arranged along the thickness direction of the frame 1. The windproof buckle 3 includes a first base 31 and a second base 33, which are disposed correspondingly on the connecting portions 11 of the two frame leaves. A lock buckle 32 is provided on the first base 31, and a lock slot 34 is provided on the second base 33. When the door leaves are closed, the lock buckle 32 engages with the lock slot 34.

[0038] In another embodiment, the door and window structure is a casement door, which includes a door leaf and a door frame for mounting the door leaf. The door leaf and the door frame are respectively provided with a frame 1. The windproof buckle 3 is provided between the frame 1 of the door leaf and the frame 1 of the door frame of the door and window structure. The sealing strip 2 extends along the length direction of the frame 1. When the door leaf is in a closed state, the frames 1 of the two door leaves are sealed and connected by the sealing strip 2. A connecting portion 11 is provided on the frame 1. The connecting portion 11 and the sealing strip 2 are arranged along the thickness direction of the frame 1. The windproof buckle 3 includes a first base 31 and a second base 33, which are provided corresponding to the connecting portions 11 of the two frames 1. The first base 31 is provided with a lock buckle 32, and the second base 33 is provided with a lock groove 34. When the door leaf is in a closed state, the lock buckle 32 is engaged with the lock groove 34.

[0039] Optionally, two hinges 4 are provided between the two frames 1 along their length. These hinges 4 are located at the top and bottom of the two frames 1, respectively, to connect the two frames 1 and enable the door to open and close. At least one windbreak 3 is provided between the two hinges 4. The number of windbreaks 3 can be increased based on actual requirements such as the door height to improve door performance.

[0040] The two parts of the windproof buckle 3, namely the first base 31 with the lock buckle 32 and the second base 33 with the lock slot 34, are respectively mounted on the frame 1 of the two door leaves. As the door leaves open, the lock buckle 32 and the lock slot 34 separate. As the door leaves close, that is, due to the force of closing the door leaves, the lock buckle 32 and the lock slot 34 engage with each other. Specifically, the lock buckle 32 and the lock slot 34 can be designed by trajectory simulation based on experimental means, so that the lock buckle 32 and the lock slot 34 can fit together when the door leaves are closed.

[0041] On the one hand, by installing a windproof buckle 3 between the two door leaves, when the door leaves are closed, the lock buckle 32 is engaged in the lock groove 34. The windproof buckle 3 is used to connect the two frames 1, replacing the middle hinge, which can play a role in resisting wind pressure and effectively prevent problems such as misalignment or even deformation in the middle of the door leaf.

[0042] On the other hand, since the connecting portion 11 and the sealing strip 2 are arranged along the thickness direction of the frame 1, after the windproof buckle 3 and the connecting portion 11 are connected, the windproof buckle 3 and the sealing strip 2 are arranged along the thickness direction of the frame 1. The windproof buckle 3 can be installed without disconnecting the sealing strip 2. In other words, the windproof buckle 3 can be installed without disconnecting the sealing strip 2, thereby ensuring the sealing and thermal insulation of the door and window structure. In addition, compared to installing a middle hinge on the door leaf, the windproof buckle 3 is located between the two door leaves, avoiding exposure to the outside of the door and window structure, making the visible surface more concise and aesthetically pleasing.

[0043] like Figure 1 As shown, in one embodiment, the lock 32 and the first base 31 are an integrally formed structure, which has good structural stability, is easy to manufacture, and can save costs. Exemplarily, the first base 31 includes a bottom plate 311, and the lock 32 is provided on one side of the bottom plate 311.

[0044] The second base 33 includes a base plate 311 and two protrusions 35 on one side of the base plate 311. The two protrusions 35 form a locking slot 34. Optionally, the base plate 311 and the protrusions 35 are integrally formed. The inner sidewall of the locking slot 34 is provided with an inclined guide surface 351, which ensures that the slot width of the locking slot 34 is greater than the slot bottom width. In other words, the two protrusions 35 are provided with an inclined guide surface 351 on the side facing each other, so that the lock buckle 32 can be easily inserted into the locking slot 34. Exemplarily, the guide surface 351 is flat.

[0045] The plane in the middle of the windproof buckle 3 along the first direction is the first symmetry plane A. The first base 31, the lock buckle 32, the second base 33 and the lock slot 34 are all symmetrical along the first symmetry plane A. The first direction is parallel to the length direction of the frame 1. Therefore, there is no need to distinguish the structure along the first direction during installation, and it can be installed at will, which reduces the difficulty of installation.

[0046] Optionally, each of the first base 31 and the second base 33 is provided with one or more mounting holes 313, and the first base 31 and the second base 33 are connected to the connecting portion 11 via the mounting holes 313. The one or more mounting holes 313 are symmetrical along the first symmetry plane A. Specifically, the connecting portion 11 is a threaded hole on the frame 1, and the fastener 5, such as a screw, passes through the mounting hole 313 and the threaded hole and is threadedly connected to the threaded hole. Exemplarily, four mounting holes 313 are provided. The four mounting holes 313 on the first base 31 are located on either side of the lock buckle 32 along the first direction. The four mounting holes 313 and the lock buckle 32 are symmetrical along the first symmetry plane A. The four mounting holes 313 on the second base 33 are located on either side of the lock slot 34 along the first direction. The four mounting holes 313 and the lock slot 34 are symmetrical along the first symmetry plane A.

[0047] like Figure 1 and Figure 2As shown, both the side of the first base 31 facing away from the lock catch 32 and the side of the second base 33 facing away from the lock slot 34 are provided with mounting structures 312 connected to the connecting portion 11. When the lock catch 32 is inserted into the lock slot 34, the plane between the first base 31 and the second base 33 forms a second symmetry plane B. The mounting structures 312 on the first base 31 and the mounting structures 312 on the second base 33 are symmetrical along the second symmetry plane B. When the first base 31, lock catch 32, second base 33, and lock slot 34 are all symmetrical along the first symmetry plane A, and the two mounting structures 312 are symmetrical along the second symmetry plane B, the first base 31 and the second base 33 can be assembled without distinguishing between the two door leaves, allowing for flexible installation, reducing installation difficulty. Optionally, the base plate 311 is a rectangular plate.

[0048] Illustratively, the mounting structure 312 includes a hook 3121 and a boss 3122 arranged along a second direction. The groove of the hook 3121 faces the boss 3122, and the second direction is parallel to the thickness direction of the frame 1. The connecting portion 11 is provided with a latching protrusion 111 and a groove. The hook 3121 hooks onto the latching protrusion 111; the boss 3122 is disposed within the groove. When assembling the first base 31, first, the hook 3121 hooks onto the latching protrusion 111, then the first base 31 is rotated to fit the boss 3122 into the groove. Finally, the four fasteners 5 are installed corresponding to the four mounting holes 313. When assembling the second base 33, the assembly method of the first base 31 can be referred to and will not be repeated here.

[0049] like Figure 3 and Figure 4 As shown, in one embodiment, the frame 1 includes two mounting profiles 12 arranged along the thickness direction of the frame 1 and a thermal insulation strip 13 arranged between the two mounting profiles 12. The mounting profile 12 is, for example, aluminum alloy, plastic steel, etc., and the thermal insulation strip 13 is a material used to block heat conduction. It is usually installed between the mounting profiles 12 to form a broken bridge structure, thereby improving the thermal insulation performance. The joint between the thermal insulation strip 13 and the mounting profile 12 forms a connecting portion 11. The thermal insulation strip 13 forms a locking protrusion 111, the mounting profile 12 forms a protrusion 112, and a sealing strip 2 is installed on the mounting profile 12. A groove is formed between the sealing strip 2 and the protrusion 112, and the boss 3122 is arranged in the groove. Furthermore, the side of the boss 3122 abuts against the sealing strip 2, thereby improving the connection reliability. The mounting profile 12 and the thermal insulation strip 13 of one frame 1 are connected to the first base 31 at the same time, that is, the first base 31 plays the role of connecting the mounting profile 12 and the thermal insulation strip 13, and the mounting profile 12 and the thermal insulation strip 13 of the other frame 1 are connected to the second base 33 at the same time, that is, the second base 33 plays the role of connecting the mounting profile 12 and the thermal insulation strip 13, so that the windproof buckle 3 plays the role of connecting the thermal insulation strip 13 and the mounting profile 12, and realizes the arrangement of the sealing strip 2 and the windproof buckle 3 in the thickness direction of the frame 1.

[0050] like Figure 3 and Figure 5 As shown, optionally, insulation strips 13 of different thicknesses or related parameters can be selected according to needs. As long as the structure of the protrusion 111 of the insulation strip 13 is the same, the windproof buckle 3 can be installed. Replacing different insulation strips 13 will not affect the installation of the windproof buckle 3. Figure 3 The thickness of the heat insulation strip 13 is relatively large. Figure 5 The thickness of the heat insulation strip 13 is smaller, but the structure of the protrusion 111 of the two is the same.

[0051] like Figure 3 As shown, optionally, both the heat insulation strip 13 and the mounting profile 12 are installed with sealing strips 2, which can reasonably arrange the sealing strips 2 and the windproof buckles 3 to prevent affecting the installation of the sealing strips 2. Furthermore, different sealing strips 2 are selected according to the different structures of the heat insulation strip 13 and the mounting profile 12, such as a second sealing strip 22 is installed on the heat insulation strip 13, and a first sealing strip 21 is installed on the mounting profile 12. The frame 1 of the two door leaves is provided with at least two sealing strips 2 along the thickness direction of the frame 1, and the connecting portion 11 is located between the two sealing strips 2. By increasing the number of sealing strips 2, the sealing and heat preservation properties are further improved, and by reasonably arranging the connection position for installing the windproof buckle 3, the installation positions of the windproof buckle 3 and the sealing strip 2 are prevented from affecting each other. In one embodiment, the frame 1 is provided with three spaced sealing strips 2 along the thickness direction, wherein a connecting portion 11 is provided between two sealing strips 2. Optionally, the windproof buckle 3 is provided between two sealing strips 2 close to the outside.

[0052] In another embodiment, Figure 5 As shown, the mounting profile 12 is installed with a sealing strip 2, but the thermal insulation strip 13 is not provided with a sealing strip 2, thereby simplifying the structure.

[0053] like Figure 6 As shown, in another embodiment, the lock 32 includes a roller 321 and a mounting shaft 322. The first base 31 includes a support portion 314. The roller 321 is sleeved and rotatably connected to the mounting shaft 322, which is disposed on the support portion 314. Optionally, the roller 321 is a brass roller to eliminate noise and reduce installation accuracy. Furthermore, the bottom plate 311 of the first base 31 is symmetrically provided with two support portions 314 along a first direction. The mounting shaft 322 is mounted on the two support portions 314. The roller 321 is disposed between the two support portions 314, and the mounting holes 313 are provided on either side of the two support portions 314. Furthermore, the bottom plate 311 of the second base 33 is provided with two protrusions 35, forming a locking groove 34 between the two protrusions 35. The inclined guide surfaces 351 on the sides of the two protrusions 35 facing each other are both arcuate. Optionally, the two end surfaces of the roller 321 are slidably connected to the two support parts 314 respectively, and the two support parts 314 play a role in limiting the roller 321 to prevent the roller 321 from shaking up and down.

[0054] Alternatively, taking the first base 31 as an example, the mounting holes 313 are divided into elongated holes 3132 and waist-shaped holes 3131, which are arranged along the width of the bottom plate 311. The elongated holes 3132 and waist-shaped holes 3131 are symmetrically arranged along the length of the bottom plate 311. The connecting portion 11 is provided with positioning holes and threaded holes. The positioning holes and the elongated holes 3132 are arranged correspondingly, and the waist-shaped holes 3131 and the threaded holes are arranged correspondingly. Screws pass through the waist-shaped holes 3131 and the threaded holes and are threadedly connected to the threaded holes, thereby connecting the first base 31 and the connecting portion 11. The positioning posts pass through the elongated holes 3132 and the positioning holes and are plugged into the positioning holes, thereby positioning the first base 31 and the connecting portion 11. By providing the waist-shaped holes 3131 and the elongated holes 3132, the position can be adjusted along the length of the frame 1, facilitating the alignment and installation of the first base 31 and the second base 33, thereby reducing the difficulty of on-site installation. Optionally, the first base 31 may also be provided with four identical mounting holes 313 , all of which are mounted via fasteners 5 . For details, please refer to the previous embodiment and no further details will be given.

[0055] Optionally, an avoidance groove 331 is formed on the bottom plate 311 of the second base 33 to avoid interference between the bottom plate 311 and the lock buckle 32 , thereby ensuring that the lock buckle 32 is stably embedded in the lock groove 34 .

[0056] The structures of the first base 31 and the second base 33 can be configured as needed and are not limited. The two types of first bases 31 and the two types of lock buckles 32 can be combined in any way. The two types of second bases 33 and the two types of lock slots 34 can be combined in any way.

[0057] In another embodiment, only one protrusion 35 may be provided on the second base 33. The protrusion 35 cooperates with the lock buckle 32. The side where the protrusion 35 is provided plays a role of unilateral wind resistance, but the installation accuracy requirement is lower, which is more convenient for workers to install.

[0058] 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. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. 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 windproof buckle, characterized in that: The windproof buckle (3) is arranged between the frames (1) of the two door leaves of the door and window structure or between the frame (1) of the door leaf of the door and window structure and the frame (1) of the door frame for mounting the door leaf. The sealing strip (2) is extended along the length direction of the frame (1). When the door leaf is in a closed state, the two frames (1) are sealed and connected by the sealing strip (2). The frame (1) is provided with a connecting portion (11), and the connecting portion (11) and the sealing strip (2) are arranged along the thickness direction of the frame (1). The windproof buckle (3) comprises a first base (31) and a second base (33), which are respectively arranged on the connecting parts (11) of the two frame frames (1); a lock buckle (32) is provided on the first base (31), and a lock groove (34) is provided on the second base (33); when the door leaf is in a closed state, the lock buckle (32) is engaged with the lock groove (34).

2. The windproof buckle according to claim 1, characterized in that: The plane in the middle of the windproof buckle along the first direction is a first symmetry plane (A), the first base (31), the lock buckle (32), the second base (33) and the lock slot (34) are all symmetrical along the first symmetry plane (A), and the first direction is parallel to the length direction of the frame (1).

3. The windproof buckle according to claim 2, characterized in that: The first base (31) and the second base (33) are both provided with one or more mounting holes (313); the first base (31) and the second base (33) are both connected to the connecting portion (11) via the mounting holes (313); and the one or more mounting holes (313) are symmetrical along the first symmetry plane (A).

4. The windproof buckle according to claim 2, characterized in that: A mounting structure (312) connected to the connecting portion (11) is provided on a side of the first base (31) facing away from the lock buckle (32) and a side of the second base (33) facing away from the lock slot (34); when the lock buckle (32) is embedded in the lock slot (34), the first base (31) and the second base (33) form a second symmetry plane (B) along the plane therebetween, and the mounting structure (312) on the first base (31) and the mounting structure (312) on the second base (33) are symmetrical along the second symmetry plane (B).

5. The windproof buckle according to claim 4, characterized in that: The mounting structure (312) comprises a hook (3121) and a boss (3122) arranged along a second direction, the groove of the hook (3121) faces the boss (3122), and the second direction is parallel to the thickness direction of the frame (1); the connecting portion (11) is provided with a locking protrusion (111) and a groove, the hook (3121) hooks the locking protrusion (111); the boss (3122) is arranged in the groove.

6. The windproof buckle according to claim 1, characterized in that: The lock buckle (32) and the first base (31) are an integrally formed structure.

7. The windproof buckle according to claim 1, characterized in that: The lock buckle (32) includes a roller (321) and a mounting shaft (322); the first base (31) includes a support portion (314); the roller (321) is sleeved on and rotatably connected to the mounting shaft (322); and the mounting shaft (322) is provided on the support portion (314).

8. The windproof buckle according to claim 1, characterized in that: The inner side wall of the locking groove (34) is provided with an inclined guide surface (351), so that the slot width of the locking groove (34) is greater than the slot bottom width.

9. The windproof buckle according to claim 1, characterized in that: The frame (1) comprises two mounting profiles (12) arranged along the thickness direction of the frame (1) and a heat insulation strip (13) arranged between the two mounting profiles (12); the joint between the heat insulation strip (13) and the mounting profile (12) forms the connecting portion (11).

10. A door and window structure, characterized in that: The invention comprises two frames (1) and at least one windproof buckle according to any one of claims 1 to 9, wherein the windproof buckle (3) is arranged between the frames (1) of two door leaves of the door and window structure or between the frame (1) of the door leaf of the door and window structure and the frame (1) of the door frame for mounting the door leaf; The first base (31) and the second base (33) of the windproof buckle (3) are respectively arranged on the connecting parts (11) of the two frame frames (1); when the door leaf is in a closed state, the lock buckle (32) on the first base (31) is engaged with the lock groove (34) on the second base (33).

11. The door and window structure according to claim 10, characterized in that: The door and window structure further comprises two hinges (4), wherein the two hinges (4) are provided between the two frames (1) along the length direction of the frames (1), and at least one windproof buckle (3) is provided between the two hinges (4).

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