A type of column-free corner bracket

Abstract

This utility model discloses a column-free corner bracket, comprising a bracket body with a first connecting part and a second connecting part perpendicular to each other. The first and second connecting parts have the same structure, and glue-dispensing grooves are provided on both sides of the connection point. The first connecting part has a first mounting groove and a second mounting groove, with a first mounting block in the first mounting groove and a second mounting block in the second mounting groove. Screw holes are provided on both the first and second mounting blocks. This utility model, by employing an integrally molded corner bracket connection structure, can replace the connecting structure of a pull iron plate, achieving column-free corners for large-span doors and windows. The first and second connecting parts each have two screw holes, and the double-screw diagonal locking structure effectively improves the uniformity of force distribution and wind pressure resistance of the corner bracket. The glue-dispensing grooves ensure uniform glue distribution and improve glue permeability.

Description

Technical Field

[0001] This utility model relates to the field of building door and window technology, and more specifically, to a column-free corner bracket. Background Technology

[0002] Traditional large-format glass windows typically require pillars or frames at the corners for structural support, with multiple corner brackets connecting the pillars to the profiles on both sides. However, this method often obstructs the view due to the large area of ​​the profiles. Pillarless corner windows aim to eliminate traditional pillars or frames at the corners, thus providing a wider view and more natural light. Existing pillarless windows use tie plates (such as reinforcing plates or connectors) at the corner joints instead of pillars, but these tie plates have low strength, are prone to corrosion, and are susceptible to loosening over time, posing significant safety hazards. Utility Model Content

[0003] This utility model provides a column-free corner bracket to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a column-free corner bracket, comprising a corner bracket body, the corner bracket body being an integrally formed structure, comprising a first connecting portion and a second connecting portion perpendicular to each other; the first connecting portion and the second connecting portion have the same structure, and glue flow grooves are respectively provided on both sides of the connection point; the first connecting portion is provided with a first mounting groove and a second mounting groove, the first mounting groove being provided with a first mounting block, the second mounting groove being provided with a second mounting block, and the first mounting block and the second mounting block being respectively provided with screw holes.

[0004] Preferably, the first mounting groove has a triangular cross-section, the first mounting block has a triangular cross-section, and the first mounting block is inserted into the groove from the side of the first mounting groove; the second mounting groove has a convex cross-section, and the two sides of the second mounting block are respectively provided with snap-fit ​​grooves that cooperate with the second mounting groove, and the snap-fit ​​grooves are snapped into the side wall of the second mounting groove.

[0005] Preferably, the first mounting block is welded to the first mounting groove, and the second mounting block is welded to the second mounting groove.

[0006] Preferably, the first mounting block has a first protrusion on each of its three outer surfaces, and the first protrusion abuts against the inner wall of the first mounting groove; the snap-fit ​​groove has a second protrusion on one side wall, and the second protrusion abuts against the inner wall of the second mounting groove.

[0007] Preferably, the first connecting part and the second connecting part are respectively provided with glue injection grooves, and the cross-section of the glue injection grooves is trapezoidal.

[0008] Preferably, a first dovetail groove is provided on the outer side of the corner of the corner code body, and an identification block is slidably engaged on the first dovetail groove, with identification symbols on the surface of the identification block.

[0009] Preferably, the marking block includes a dovetail block, which is slidably engaged with the first dovetail groove; the dovetail block has side plates on both sides, and the end of the side plate has an inwardly bent retaining plate; the two side plates are respectively attached to the first connecting part and the second connecting part, and when attached, the retaining plate is engaged with the side wall of the glue injection groove.

[0010] Preferably, the corner bracket body is provided with a second dovetail groove and a third dovetail groove on the inner side of the corner.

[0011] Preferably, the first connecting portion is provided with a weight-reducing cavity, the weight-reducing cavity includes a first sidewall and a second sidewall, a transition arc is provided between the first sidewall and the second sidewall, and the included angle between the first sidewall and the second sidewall is an acute angle.

[0012] Preferably, the screw hole is a countersunk screw hole with a 45° chamfer at the opening.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: This utility model adopts an integrated corner bracket connection structure, which can replace the connection structure of the pull iron plate, realizing the column-free corner of large-span doors and windows; the first and second connecting parts each have two screw holes, and the double screw diagonal locking structure can effectively improve the stress uniformity and wind pressure resistance of the corner bracket; the glue channel makes the glue evenly distributed, effectively improving the glue penetration rate. In addition, the corner bracket of this utility model is hidden inside the profile after installation, which has a high aesthetic appeal and a long service life. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the column-free corner bracket of this utility model embodiment;

[0015] Figure 2 This is a structural diagram of the column-free corner bracket of this utility model from another perspective;

[0016] Figure 3 This is a front view of an embodiment of the present utility model without a column corner bracket;

[0017] Figure 4 This is an exploded view of an embodiment of the present utility model without a column corner bracket;

[0018] exist Figures 1 to 4 In the diagram, the correspondence between the component names and the drawing numbers is as follows:

[0019] 1--Corner code body, 11--First connecting part, 111--First mounting groove, 112--Second mounting groove, 113--Glue injection groove, 114--Weight reduction cavity, 114a--First side wall, 114b--Second side wall, 114c--Transition arc, 12--Second connecting part, 13--Glue flow groove, 14--First dovetail groove, 15--Second dovetail groove, 16--Third dovetail groove, 2--First mounting block, 21--Screw hole, 22--First protrusion, 3--Second mounting block, 31--Snap-fit ​​groove, 32--Second protrusion, 4--Identification block, 41--Dovetail block, 42--Side plate, 43--Clamping plate. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to Figures 1 to 4This utility model provides a column-free corner bracket, including a corner bracket body 1, which is an integrally formed structure, including a first connecting part 11 and a second connecting part 12 that are perpendicular to each other; the first connecting part 11 and the second connecting part 12 have the same structure, and glue flow grooves 13 are respectively provided on both sides of the connection between the two; the first connecting part 11 is provided with a first mounting groove 111 and a second mounting groove 112, a first mounting block 2 is provided in the first mounting groove 111, and a second mounting block 3 is provided in the second mounting groove 112, and screw holes 21 are respectively provided on the first mounting block 2 and the second mounting block 3.

[0024] In this embodiment of the utility model, the corner bracket body 1 is an integrated structure without splicing gaps, avoiding the structural weakness caused by assembly errors or loose connections in split corner brackets. It can withstand greater external forces (such as the self-weight of door and window frames, wind pressure, vibration, etc.) and has strong overall rigidity. The first connecting part 11 and the second connecting part 12 are perpendicular to each other and have the same structure, so there is no need to distinguish the direction during installation, reducing the identification cost during construction. The first mounting groove 111 and the second mounting groove 112 respectively cooperate with the first mounting block 2 and the second mounting block 3 to form a groove and block fitting structure. By adopting the separate structure of the first mounting block 2 and the second mounting block 3, the appropriate opening of the first mounting block 2 and the second mounting block 3 can be selected according to the specific situation of the door and window, and the first mounting block 2 and the second mounting block 3 can be installed and fixed to the first mounting groove 111 and the second mounting groove 112 respectively. It has strong flexibility and can make small adjustments to the installation position, with good adaptability. The glue channels 13 on both sides of the connection can hold the sealant during assembly. On the one hand, they fill the gap between the corner bracket and the connecting component, enhancing the waterproof and dustproof performance. On the other hand, the cured glue can further strengthen the connection, prevent the screws from loosening due to vibration during long-term use, and improve the overall sealing and durability.

[0025] Compared to traditional corner brackets with upright installation, the "upright-free" design simplifies the door and window system while maintaining strength, improves the aesthetics of doors and windows, and reduces production costs and transportation weight. In this embodiment, the corner bracket body 1 can be formed in one piece through processes such as die casting and extrusion, resulting in high production efficiency, ensuring dimensional consistency, reducing subsequent processing steps (such as drilling), and making it suitable for mass production.

[0026] In this embodiment, the column-less corner bracket, before use, utilizes the interlocking structure of the first mounting groove 111 and the first mounting block 2, and the second mounting groove 112 and the second mounting block 3 to form mounting holes. Then, the first connecting part 11 and the second connecting part 12 of the corner bracket body 1 are respectively aligned with the ends of the two right-angle components (such as profiles or plates) to be connected. Through the screw holes 21 on the first mounting block 2 and the second mounting block 3, screws are used to lock the corner bracket body 1 to the two right-angle components. Through the rigid connection of the interlocking structure and the screws, the two components form a stable 90° right-angle structure through the corner bracket body 1. Subsequently, sealant is injected into the right-angle components. The sealant enters the interior of the corner bracket body 1 through the sealant channel 13, filling the gap between the corner bracket body 1 and the components. After curing, it not only enhances the waterproof and dustproof sealing performance, but also further strengthens the connection, preventing the screws from loosening due to vibration during long-term use, and finally forming a right-angle connection with both strength and sealing.

[0027] Preferably, the first mounting groove 111 has a triangular cross-section, and the first mounting block 2 also has a triangular cross-section. The first mounting block 2 is inserted into the groove from the side of the first mounting groove 111. The second mounting groove 112 has a convex cross-section, and the two sides of the second mounting block 3 are respectively provided with snap-fit ​​grooves 31 that cooperate with the second mounting groove 112. The snap-fit ​​grooves 31 engage with the side walls of the second mounting groove 112. In this embodiment, the triangular cross-section has natural stability, and the triangular interlocking structure of the first mounting groove 111 and the first mounting block 2 can effectively disperse external forces and prevent the first mounting block 2 from slipping out of the groove. The triangular inclined surface has a high degree of fit, and after insertion, it can achieve a preliminary tight fit through its own structure, reducing shaking during installation and providing a stable foundation for subsequent screw fixing. The first mounting block 2 is inserted into the triangular groove from the side, without the need for precise alignment in the vertical direction, making installation simple and easy to operate. The slot structure of the second mounting groove 112 and the second mounting block 3 allows for easy selection of the appropriate second mounting block 3 according to the needs of different profiles, enhancing the versatility of the corner bracket, reducing the types of accessories, ensuring tight connection, reducing the requirements for processing precision, and saving production costs.

[0028] With the above-mentioned structural design, the screw holes 21 on the first connecting part 11 and the second connecting part 12 are symmetrically arranged, and the double screws are diagonally arranged and locked in place. This structure can effectively improve the uniformity of force distribution and wind pressure resistance of the entire corner bracket, and enhance the connection stability and structural strength of the corner bracket.

[0029] Preferably, the first mounting block 2 is welded to the first mounting groove 111, and the second mounting block 3 is welded to the second mounting groove 112. In this embodiment, welding reduces the risk of loosening and ensures stability even under long-term vibration and temperature difference conditions.

[0030] Preferably, the first mounting block 2 has a first protrusion 22 on each of its three outer surfaces, and the first protrusion 22 abuts against the inner wall of the first mounting groove 111; the snap-fit ​​groove 31 has a second protrusion 32 on one side wall, and the second protrusion 32 abuts against the inner wall of the second mounting groove 112. In this embodiment, the first protrusion 22 abuts against the inner wall of the triangular first mounting groove 111, and the second protrusion 32 abuts against the inner wall of the U-shaped second mounting groove 112. The elastic compression of the protrusions eliminates gaps, preventing loosening or shaking after installation and improving the rigidity of the overall connection.

[0031] Preferably, the first connecting portion 11 and the second connecting portion 12 are respectively provided with glue injection grooves 113, and the cross-section of the glue injection grooves 113 is trapezoidal. In this embodiment, the glue injection grooves 113 with trapezoidal cross-sections form a "barb"-like bond between the cured glue and the trapezoidal groove wall, further limiting the peeling tendency of the glue layer under stress and improving the connection effect between the corner bracket and the profile.

[0032] Preferably, a first dovetail groove 14 is provided on the outer side of the corner of the corner code body 1. A marker block 4 is slidably engaged on the first dovetail groove 14, and the surface of the marker block 4 is marked with symbols. In this embodiment, the symbols on the surface of the marker block 4 (such as model number, specifications, installation direction, and brand logo) can intuitively convey information, facilitating quick identification of product parameters or operating requirements during production, assembly, and maintenance, and reducing misoperation. The marker block 4 is slidably engaged through the first dovetail groove 14, allowing for the replacement of marker blocks 4 with different symbols as needed. Compared to fixed markings that are directly printed or engraved, this method offers greater flexibility and adapts to diverse needs.

[0033] Preferably, the marking block 4 includes a dovetail block 41, which is slidably engaged with the first dovetail groove 14; side plates 42 are respectively provided on both sides of the dovetail block 41, and the ends of the side plates 42 are provided with inwardly bent retaining plates 43; the two side plates 42 are respectively attached to the first connecting part 11 and the second connecting part 12, and when attached, the retaining plates 43 are engaged with the side walls of the glue injection groove 113. In this embodiment,

[0034] The dovetail block 41 slides and engages with the first dovetail groove 14, forming a basic fixation. Simultaneously, the side plate 42 fits into the connecting part, and the locking plate 43 engages with the side wall of the glue injection groove 113. Through the dual limiting effect of the dovetail groove and the locking plate 43, the connection stability of the marker is effectively improved, preventing slippage or misalignment and ensuring that the marker is always in the preset position. Furthermore, the locking design of the locking plate 43 and the glue injection groove 113 cleverly utilizes the existing structure of the glue injection groove 113 in the connecting part, eliminating the need for additional fixing positions. This strengthens the fixing effect of the marker block 4 without affecting the original function of the glue injection groove 113, achieving structural reuse and efficient cooperation.

[0035] Preferably, the inner side of the corner of the corner bracket body 1 is provided with a second dovetail groove 15 and a third dovetail groove 16. In this embodiment, the second and third dovetail grooves 16 provided on the inner side can correspond to connectors (such as reinforcing ribs, auxiliary supports or other components) in different directions, and multi-dimensional fixation can be achieved through the quick snap-fit ​​of the dovetail structure, meeting the needs of multi-angle connection in complex assembly scenarios. The second and third dovetail grooves 16 can be used as hidden wiring channels, glue injection channels or buffer installation positions: for example, the groove body guides the glue to flow to the inner corner gap to improve the sealing effect; or an elastic buffer strip is embedded to absorb vibration energy to reduce noise and vibration.

[0036] Preferably, the first connecting portion 11 is provided with a weight-reducing cavity 114, which includes a first sidewall 114a and a second sidewall 114b. A transition arc 114c is provided between the first sidewall 114a and the second sidewall 114b, and the included angle between the first sidewall 114a and the second sidewall 114b is an acute angle. In this embodiment, the weight-reducing cavity 114 reduces the weight of the corner bracket body 1 by removing material from non-stressed areas, while ensuring the core strength of the connecting portion, thereby reducing the load on the overall structure after assembly.

[0037] Preferably, the screw hole 21 is a countersunk screw hole 21 with a 45° chamfer at the opening. In this embodiment, when installing the screw, the head can be quickly aligned with the hole position through the chamfer, reducing alignment deviation and improving assembly efficiency.

[0038] Compared with existing technologies, the advantages of this utility model are as follows: This utility model adopts an integrated corner bracket connection structure, which can replace the connection structure of the pull iron plate, realizing the column-free corner of large-span doors and windows; the first and second connecting parts each have two screw holes, and the double screw diagonal locking structure can effectively improve the stress uniformity and wind pressure resistance of the corner bracket; the glue channel makes the glue evenly distributed, effectively improving the glue penetration rate. In addition, the corner bracket of this utility model is hidden inside the profile after installation, which has a high aesthetic appeal and a long service life.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A column-free corner brace, characterized by, The device includes a corner code body (1), which is an integrally formed structure, including a first connecting part (11) and a second connecting part (12) that are perpendicular to each other; the first connecting part and the second connecting part have the same structure, and glue flow grooves (13) are provided on both sides of the connection point; the first connecting part is provided with a first mounting groove (111) and a second mounting groove (112), a first mounting block (2) is provided in the first mounting groove, a second mounting block (3) is provided in the second mounting groove, and screw holes (21) are provided on the first mounting block and the second mounting block respectively.

2. The column-free corner brace of claim 1, wherein, The first mounting groove has a triangular cross-section, the first mounting block has a triangular cross-section, and the first mounting block is inserted into the groove from the side of the first mounting groove; the second mounting groove has a convex cross-section, and the two sides of the second mounting block are respectively provided with snap-fit ​​grooves (31) that cooperate with the second mounting groove, and the snap-fit ​​grooves are snap-fitted with the side wall of the second mounting groove.

3. The column-free corner bracket according to claim 2, characterized in that, The first mounting block is welded and fixed to the first mounting groove, and the second mounting block is welded and fixed to the second mounting groove.

4. The column-less corner bracket according to claim 2, characterized in that, The first mounting block has a first protrusion (22) on each of its three outer surfaces, and the first protrusion abuts against the inner wall of the first mounting groove; the snap-fit ​​groove has a second protrusion (32) on one side wall, and the second protrusion abuts against the inner wall of the second mounting groove.

5. The column-free corner bracket according to claim 1, characterized in that, The first connecting part and the second connecting part are respectively provided with glue injection grooves (113), and the cross section of the glue injection grooves is trapezoidal.

6. The column-less corner bracket according to claim 5, characterized in that, The outer side of the corner of the corner code body is provided with a first dovetail groove (14), and a marker block (4) is slidably engaged on the first dovetail groove. The surface of the marker block is provided with a marker symbol.

7. The column-less corner bracket according to claim 6, characterized in that, The marking block includes a dovetail block (41), which is slidably engaged with the first dovetail groove; the dovetail block is provided with side plates (42) on both sides, and the end of the side plate is provided with an inwardly bent clamping plate (43); the two side plates are respectively attached to the first connecting part and the second connecting part, and when attached, the clamping plate is engaged with the side wall of the glue injection groove.

8. The column-free corner bracket according to claim 1, characterized in that, The corner bracket body is provided with a second dovetail groove (15) and a third dovetail groove (16) on the inner side of the corner.

9. The column-less corner bracket according to claim 1, characterized in that, The first connecting part is provided with a weight reduction cavity (114), which includes a first side wall (114a) and a second side wall (114b). A transition arc (114c) is provided between the first side wall and the second side wall, and the included angle between the first side wall and the second side wall is an acute angle.

10. The corner bracket without a post according to any one of claims 1 to 9, characterized in that, The screw hole is a countersunk screw hole with a 45° chamfer at the opening.

Images