Expansion tension corner brace

By designing expansion tension corner brackets, using an aluminum body and plastic side brackets, and combining directional openings, holes, and guide grooves, the problems of uneven glue application and misalignment in existing corner brackets have been solved, achieving both stability and cost-effectiveness in profile connections.

CN223894050UActive Publication Date: 2026-02-10FOSHAN LANGYI DOOR & WINDOW ACCESSORIES CO LTD
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Patent Information

Application Number
CN202520175014.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2026-02-10
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

The existing corner brackets suffer from uneven glue application and lack of positioning during profile splicing, making them prone to misalignment and resulting in unstable connections.

Method used

The expansion tension corner brackets are used, including the main corner bracket and detachable first and second side corner brackets. The design of the directional port, directional hole, insert end, threaded hole and glue injection guide hole ensures uniform injection of glue and forms a stable connection. Hollow injection screws and guide groove structure are used to avoid misalignment. The aluminum body and plastic side corner brackets are used to improve connection stability.

Benefits of technology

It achieves precise injection of adhesive, reduces waste, enhances the stability of profile corner joints and the overall connection, avoids adhesive leakage and misalignment problems, and reduces adhesive costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sectional material assembly, in particular to an expansion tension corner brace applied to door and window frame sectional material corner splicing combination. A positioning opening, a threaded hole and a glue injection flow guide hole are formed by the positioning half opening, the threaded half hole and the glue injection flow guide half hole of the third connecting part and the fourth connecting part when the third connecting part and the fourth connecting part are clamped, and the threaded hole is provided with a hollow injection molding screw capable of enabling the first side corner brace and the second side corner brace to expand. The main body corner connector is made of an aluminum material, the first side corner connector and the second side corner connector are made of a plastic material, and a glue solution is injected into the flow guide hole of the hollow injection molding screw, so that the glue solution flows into the glue injection flow guide hole and reaches the surfaces of the first side corner connector and the second side corner connector through the second glue injection flow guide groove and the first glue injection flow guide groove; waste of glue liquid due to the fact that the glue liquid leaks into the expansion tension corner connector can be reduced, after the glue liquid is injected, the hollow injection molding screws are screwed to reinforce overall connection, and the splicing corners of door and window profiles are smoother and more stable.
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Description

Technical Field

[0001] This utility model relates to the field of profile assembly technology, and in particular to an expansion tension corner bracket used in the splicing of door and window frame profiles. Background Technology

[0002] Angle brackets are accessories used to assemble two profiles set at 90 degrees together. However, existing angle brackets used for profile splicing often suffer from uneven glue application, lack of positioning, and misalignment. Furthermore, the mounting grooves of the angle brackets do not fit tightly with the screws, failing to achieve a perfect fit between the angle brackets and the profiles, causing great inconvenience to users. Utility Model Content

[0003] The purpose of this invention is to provide an expansion tension corner code to solve the problems of uneven glue application, lack of positioning, and easy misalignment of existing corner codes.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model proposes an expansion tension angle bracket, including a main angle bracket and a detachably connected first side angle bracket and a second side angle bracket. The main angle bracket is disposed between the first side angle bracket and the second side angle bracket. The main angle bracket includes a first connecting part and a second connecting part that intersect perpendicularly. Both the first connecting part and the second connecting part are provided with a plurality of directional openings, directional holes, and insert ends. Both the first side angle bracket and the second side angle bracket include a third connecting part and a fourth connecting part that intersect perpendicularly. Both the third connecting part and the fourth connecting part are provided with directional protrusions, positioning half-openings, threaded half-holes, glue injection guide half-holes, and semi-sliding grooves that are adapted to the directional openings. When the third connecting part and the fourth connecting part of the first side angle bracket and the second side angle bracket are engaged with each other, the positioning half-opening, the threaded half-hole, and the glue injection guide half-hole form a positioning opening, a threaded hole, and a glue injection guide hole. The threaded hole is provided with a hollow injection screw that allows the first side angle bracket and the second side angle bracket to expand.

[0006] In a further embodiment of this utility model, the semi-sliding grooves of the third connecting portion and the fourth connecting portion of the first side corner code and the second side corner code form a sliding groove for the insertion end to be inserted when the third connecting portion and the fourth connecting portion of the first side corner code and the second side corner code are engaged, and the insertion end is inserted into the sliding groove.

[0007] In a further embodiment of this utility model, the outer surfaces of the first side corner code and the second side corner code located between the third connecting part and the fourth connecting part are each provided with a first glue injection guide groove, and the bottom of the first side corner code and the second side corner code located between the third connecting part and the fourth connecting part is provided with a second glue injection guide groove. The first glue injection guide groove and the glue injection guide hole are respectively connected to the second glue injection guide groove.

[0008] In a further embodiment of this utility model, the threaded hole is located below the directional opening, and the flow guiding channel is located below the threaded hole.

[0009] As a further embodiment of this utility model, the inner wall of the threaded hole is provided with an expansion block for vertical expansion.

[0010] In a further embodiment of this utility model, the third connecting portion of the first side corner code is provided with a first locking post, and the fourth connecting portion of the first side corner code is provided with a first locking groove; the third connecting portion of the second side corner code is provided with a second locking groove for fitting the first locking post, and the fourth connecting portion of the second side corner code is provided with a second locking post for fitting the first locking groove; the first side corner code and the second side corner code are engaged and connected by the first locking groove and the first locking post corresponding to the second locking post and the second locking groove.

[0011] In a further embodiment of this utility model, the directional holes are respectively disposed on the sides of the first connecting part and the second connecting part, and the insert end is respectively disposed at the end of the first connecting part and the second connecting part.

[0012] As a further embodiment of this utility model, the hollow injection screw is provided with a guide hole.

[0013] In a further embodiment of this utility model, the main corner bracket is made of aluminum.

[0014] In a further embodiment of this utility model, both the first side corner code and the second side corner code are made of plastic.

[0015] Compared with the prior art, the solution of this utility model has the following advantages:

[0016] In the expansion tension angle bracket of this utility model, the main angle bracket is made of aluminum, and the first and second side angle brackets are made of plastic. The main angle bracket is disposed between the first and second side angle brackets. The first and second side angle brackets are connected by a snap-fit ​​mechanism to prevent misalignment during the installation of hollow injection screws and the injection of adhesive, thus ensuring the stability of the connection between the expansion tension angle bracket and the profile. When the third and fourth connecting parts of the first and second side angle brackets are engaged with each other, the positioning half-hole, threaded half-hole, and adhesive guiding half-hole form a positioning port, a threaded hole, and an adhesive guiding hole. The hollow injection screw is tightened through the positioning port and the threaded hole. Then, adhesive is injected into the guide hole of the hollow injection screw, allowing the adhesive to flow into the injection guide hole and through the second and first injection guide grooves to the surfaces of the first and second side corner brackets. This reduces adhesive leakage into the expansion tension corner brackets, thus reducing adhesive waste. The design of the injection guide hole, the second injection guide groove, and the first injection guide groove improves injection accuracy, reduces adhesive costs, and avoids waste. After injecting the adhesive, the hollow injection screw is tightened to strengthen the overall connection, making the corner joints of the door and window profiles more flat and stable. This provides a fixed connection between the main corner bracket, the first side corner bracket, and the second side corner bracket, preventing misalignment during the installation of the hollow injection screw and the injection of adhesive, and ensuring the stability of the connection between the expansion tension corner bracket and the profile. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the expansion tension angle bracket provided in this embodiment of the utility model.

[0018] Figure 2 This is a schematic diagram of the combination of the first side corner code and the main body corner code of the expansion tension corner code provided in this embodiment of the utility model.

[0019] Figure 3 This is a schematic diagram of the first side corner code of the expansion tension corner code provided in this embodiment of the utility model.

[0020] Figure 4 This is a schematic diagram of the second side corner code of the expansion tension corner code provided in this embodiment of the utility model.

[0021] Figure 5 This is a left view of the expansion tension angle code provided in this embodiment of the utility model.

[0022] Figure 6 This is a perspective view of the expansion tension angle code provided in this embodiment of the utility model. Detailed Implementation

[0023] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0024] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0025] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the elements, components, regions, layers, or segments discussed below may be referred to as second elements, components, regions, layers, or segments without departing from the teachings of the exemplary embodiments.

[0026] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "rear," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0028] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0029] Please see Figures 1 to 6As shown, the expansion tension angle bracket 100 provided in this embodiment of the utility model includes a main angle bracket 10, a first side angle bracket 20, and a second side angle bracket 30. The first side angle bracket 20 and the second side angle bracket 30 are connected by a snap-fit ​​connection. The main angle bracket 10 is disposed between the first side angle bracket 20 and the second side angle bracket 30. The main angle bracket 10 includes a first connecting portion 11 and a second connecting portion 12 that intersect perpendicularly. The first connecting portion 11 and the second connecting portion 12 can also be integrally formed. Both the first connecting portion 11 and the second connecting portion 12... The first side corner bracket 20 and the second side corner bracket 30 each include a third connecting part 40 and a fourth connecting part 50 that intersect perpendicularly. The third connecting part 40 and the fourth connecting part 50 can also be integrally formed. The third connecting part 40 and the fourth connecting part 50 are each provided with a directional protrusion 61, a positioning half-hole 62, a threaded half-hole 63, an injection guide half-hole 64, and a semi-slide groove 65 that are adapted to the directional protrusion 13. The first side corner bracket 20 and the second side corner bracket 30 have a plurality of directional openings 13, directional holes 14, and insert blocks 15. When the third connecting part 40 and the fourth connecting part 50 engage with each other, the positioning half-hole 62, the threaded half-hole 63, and the glue injection guide half-hole 64 form a positioning half-hole 651, a threaded hole 66, and a glue injection guide hole 67. The threaded hole 66 is provided with a hollow injection screw 70 that allows the first side corner bracket 20 and the second side corner bracket 30 to expand. The hollow injection screw 70 is provided with a guide hole 71. Adhesive is injected through the injection guide hole, the second injection guide groove, and the first injection guide groove to the surface of the first and second side corner brackets, completing the adhesive injection and fixing. The second and first injection guide grooves are mainly outside the first and second side corner brackets 20 and 30, so the adhesive will not flow into the inside of the main corner bracket 10, the first side corner bracket 20, and the second side corner bracket 30, reducing adhesive waste. The adhesive injection is precise and uniform. After the adhesive is injected, the hollow injection screws 70 are tightened to strengthen the overall connection, making the corner joints of the door and window profiles flatter and more stable.

[0030] In an embodiment of this utility model, when the third connecting portion 40 of the first side corner bracket 20 and the fourth connecting portion 50 of the second side corner bracket 30 engages with the fourth connecting portion 50, a sliding groove 68 is formed for the insertion of the insert end 15. The insert end 15 is inserted into the sliding groove 68 to securely fix the main body corner bracket 10.

[0031] In an embodiment of this utility model, the outer surfaces of the first side corner bracket 20 and the second side corner bracket 30 located between the third connecting part 40 and the fourth connecting part 50 are each provided with a first glue injection guide groove 69. The bottom of the first side corner bracket 20 and the second side corner bracket 30 located between the third connecting part 40 and the fourth connecting part 50 is provided with a second glue injection guide groove 691. The first glue injection guide groove 69 and the glue injection guide hole 67 are respectively connected to the second glue injection guide groove 691 to prevent the glue liquid from flowing into the main corner bracket 10.

[0032] In an embodiment of this utility model, the threaded hole 66 is disposed below the directional opening 65, and the glue injection guide hole 67 is disposed below the threaded hole 66.

[0033] In an embodiment of this utility model, the inner wall of the threaded hole 66 is provided with an expansion block 661 for realizing the vertical expansion of the first side corner bracket 20 and the second side corner bracket 30. The expansion block 661 expands evenly, making the corner joint tighter and the door and window frame more firmly and tightly installed.

[0034] In an embodiment of this utility model, the third connecting part of the first side corner bracket 20 is provided with a first locking post 21, and the fourth connecting part of the first side corner bracket 20 is provided with a first locking groove 22; the third connecting part of the second side corner bracket 30 is provided with a second locking groove 31 for fitting the first locking post 21, and the fourth connecting part of the second side corner bracket 30 is provided with a second locking post 32 for fitting the first locking groove 22. The first side corner bracket 20 and the second side corner bracket 30 are tightly engaged and connected by the first locking groove 22 and the first locking post 21 corresponding to the second locking post 32 and the second locking groove 31, forming a sealed structure. When applying glue, the glue will not flow into the main corner bracket 10.

[0035] In an embodiment of this utility model, the directional holes 14 are respectively disposed on the sides of the first connecting part 11 and the second connecting part 12, and the insert end 15 is respectively disposed at the ends of the first connecting part 11 and the second connecting part 12.

[0036] In an embodiment of this utility model, the main corner bracket 10 is made of aluminum; the first side corner bracket 20 and the second side corner bracket 30 are both made of plastic. When the hollow injection molded screw 70 is screwed down and contacts the expansion block 661 of the screw hole, the first side corner bracket 20 and the second side corner bracket 30 can expand.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An expansion tension angle code, characterized in that: The device includes a main corner bracket and detachably connected first and second side corner brackets. The main corner bracket is positioned between the first and second side corner brackets. The main corner bracket includes a first and second connecting portion that intersect perpendicularly. Both the first and second connecting portions are provided with several directional openings, directional holes, and insert ends. Both the first and second side corner brackets include a third and a fourth connecting portion that intersect perpendicularly. Both the third and fourth connecting portions are provided with directional protrusions, positioning half-openings, threaded half-holes, glue injection guide half-holes, and semi-slide grooves that are adapted to the directional openings. When the positioning half-openings, threaded half-holes, and glue injection guide half-holes of the third and fourth connecting portions of the first and second side corner brackets are engaged with each other, they form positioning openings, threaded holes, and glue injection guide holes. The threaded holes are provided with hollow injection-molded screws that allow the first and second side corner brackets to expand.

2. The expansion tension angle code as described in claim 1, characterized in that, When the third connecting portion and the fourth connecting portion of the first side corner code and the second side corner code are engaged, a sliding groove is formed for the insertion of the plug end, and the plug end is inserted into the sliding groove.

3. The expansion tension angle code as described in claim 1, characterized in that, The first side corner code and the second side corner code are provided with a first glue injection guide groove on their outer surfaces located between the third connecting part and the fourth connecting part. The first side corner code and the second side corner code are provided with a second glue injection guide groove at their bottoms located between the third connecting part and the fourth connecting part. The first glue injection guide groove and the glue injection guide hole are respectively connected to the second glue injection guide groove.

4. The expansion tension angle code as described in claim 3, characterized in that, The threaded hole is located below the directional opening, and the glue injection guide hole is located below the threaded hole.

5. The expansion tension angle code as described in claim 4, characterized in that, The inner wall of the threaded hole is provided with an expansion block for vertical expansion.

6. The expansion tension angle code as described in claim 1, characterized in that, The third connecting part of the first side corner code is provided with a first locking post, and the fourth connecting part of the first side corner code is provided with a first locking slot; the third connecting part of the second side corner code is provided with a second locking slot for fitting the first locking post, and the fourth connecting part of the second side corner code is provided with a second locking post for fitting the first locking slot. The first side corner code and the second side corner code are connected by the first locking slot and the first locking post corresponding to the second locking post and the second locking slot.

7. The expansion tension angle code as described in claim 1, characterized in that, The insert end is respectively disposed at the end of the first connecting part and the second connecting part.

8. The expansion tension angle code as described in claim 1, characterized in that, The hollow injection molded screw is provided with a guide hole.

9. The expansion tension angle code as described in claim 1, characterized in that, The main corner bracket is made of aluminum.

10. The expansion tension angle code as described in claim 1, characterized in that, Both the first and second side corner codes are made of plastic.