Novel expansion type corner connector

Abstract

The utility model relates to a novel expansion type corner connector which comprises a corner connector body, the corner connector body comprises a first connecting part and a second connecting part which are used for being connected with section bars, an empty groove is formed in the first connecting part, extension arms are formed on the two sides of the empty groove, and a pressing buckle handle used for pushing the extension arms on the two sides to expand outwards is movably arranged in the empty groove. The utility model aims at providing a novel expansion type corner connector to solve the technical problems that an existing corner connector is tedious in operation, a thin-wall structure of a section bar is prone to being damaged in the process of tightening a self-tapping screw, connection of an aluminum alloy section bar is not stable, and the strength and the appearance of the aluminum alloy section bar are affected.

Description

Technical Field

[0001] This utility model belongs to the field of hardware accessories technology, and in particular relates to a novel inflatable corner bracket. Background Technology

[0002] Corner brackets are commonly used hardware components, typically used as accessories for doors, windows, furniture, curtain walls, etc. They are mostly not final consumer goods, but rather supporting products, semi-finished products, and tools used in industrial manufacturing. In existing technology, corner brackets are formed by two mutually perpendicular bracket segments molded together in an L-shape. Both bracket segments have threaded holes. When connecting two aluminum alloy profiles at a corner, the two bracket segments are first inserted into the two aluminum alloy profiles respectively. To fix the corner brackets and aluminum alloy profiles, self-tapping screws are inserted from the pre-drilled holes in the aluminum alloy profiles into the threaded holes of the corner brackets, and then tightened until the self-tapping screws and aluminum alloy profiles are pressed together, thus fixing the corner brackets to the aluminum alloy profiles.

[0003] In order to achieve a tighter connection and fixation between the corner bracket and the profile, the above method uses self-tapping screws to fix the corner bracket and the profile. This method is not only cumbersome to operate, but also easily damages the thin-walled structure of the profile during the tightening of the self-tapping screws, resulting in unstable connection of the aluminum alloy profile and affecting the strength and appearance of the aluminum alloy profile. Utility Model Content

[0004] The purpose of this invention is to provide a novel inflatable corner code to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel expandable corner bracket, comprising a corner bracket body, the corner bracket body comprising a first connecting part and a second connecting part for connecting profiles, the first connecting part having a slot, extension arms formed on both sides of the slot, and a downward pressing handle movably disposed within the slot for pushing the extension arms on both sides to expand outward.

[0006] Furthermore, movable holes are provided on the inner sidewalls of the extension arms on both sides of the slot, and one end of the pressing handle is provided with a handle shaft that matches the movable hole. The pressing handle is rotatably disposed in the slot of the first connecting part through the handle shaft.

[0007] Furthermore, the slot includes a connecting area for installing the pressure handle and an extension area for pushing the extension arm, wherein the slot opening diameter of the extension area gradually increases from the inside to the outside.

[0008] Furthermore, the inner side of the extension arm is provided with outward expansion protrusions. When the pressing handle is pressed into the slot, the pressing handle and the outward expansion protrusions abut against each other and push the extension arm to expand to both sides through the outward expansion protrusions.

[0009] Furthermore, the pressing handle includes a pushing part and a pressing part, the pushing part and the slot are matched, and the handle shaft is integrally formed at the end of the pushing part away from the pressing part.

[0010] Furthermore, the end of the pressing part away from the pushing part protrudes from the first connecting part and its lower surface is formed with an inclined surface.

[0011] Furthermore, the first connecting part and the second connecting part are arranged at 90° to form an L-shaped corner bracket body, which is used to connect the horizontal profile and the vertical profile, respectively.

[0012] Furthermore, both the first connecting portion and the second connecting portion have fastening grooves on their inner sides.

[0013] By using the above technical solution, compared with the prior art, this utility model has the following beneficial effects: By opening a slot in the first connecting part and / or the second connecting part, extension arms are formed on both sides of the slot. Simultaneously, a pressing handle is provided in the slot to push the extension arms to expand to both sides. In use, the pressing handle is first pulled upwards from the slot, and then the first and second connecting parts are inserted into different profiles respectively. When the connecting part with the pressing handle enters the profile, as the connecting part continues to penetrate deeper, the inner wall of the profile will press the pressing handle down, causing the pressing handle and... The extension arms are contacted by outward-expanding protrusions on the inner side, which then push the two extension arms outward, causing them to expand until they clamp against the inner wall of the profile. In this way, simply pressing down the buckle will cause the two extension arms to expand outward and press against the profile. The overall structure is simple and easy to operate. It can achieve a fastening effect without self-tapping screws and will not damage the thin wall of the profile. This solves the technical problem that existing corner brackets are not only cumbersome to operate, but also easily damage the thin wall structure of the profile during the tightening of self-tapping screws, resulting in unstable aluminum alloy profile connections and affecting the strength and appearance of the aluminum alloy profile. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a bottom view of the structure of this utility model;

[0018] Figure 4 This is a side sectional view of the present invention.

[0019] Figure 5 This is a schematic diagram of the assembly state of the corner bracket body and profile of this utility model;

[0020] The utility model reference information is as follows:

[0021] 1. Angle bracket body; 2. Hole slot; 3. Press-down handle; 4. Movable hole; 5. Outward protrusion; 6. Fastening groove; 101. First connecting part; 102. Second connecting part; 103. Extension arm; 201. Connecting area; 202. Expansion area; 301. Handle shaft; 302. Inclined surface; 303. Pushing part; 304. Pressing part;

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] like Figure 1-5As shown: A novel inflatable corner bracket includes a corner bracket body 1. The corner bracket body 1 includes a first connecting part 101 and a second connecting part 102 for connecting profiles. The first connecting part 101 has a slot 2. Extension arms 103 are formed on both sides of the slot 2. A pressing handle 3 is movably provided in the slot 2 for pushing the extension arms 103 on both sides to expand outward.

[0027] The first connecting part 101 and the second connecting part 102 are arranged at 90° to form an L-shaped corner bracket body 1, which is used to connect the horizontal profile and the vertical profile respectively.

[0028] like Figure 1-3 As shown: Movable holes 4 are provided on the inner sidewalls of the extension arms 103 on both sides of the slot 2. One end of the pressing handle 3 is provided with a handle shaft 301 that matches the movable hole 4. The pressing handle 3 is rotatably set in the slot 2 of the first connecting part 101 through the handle shaft 301. The handle shaft 301 is rotated in the movable hole 4 by the movable hole 4, which facilitates the up and down adjustment of the pressing handle 3.

[0029] like Figure 3 As shown: The slot 2 includes a connecting area 201 for installing the pressure handle 3 and an expansion area 202 for pushing the extension arm 103. The diameter of the slot opening of the expansion area 202 gradually increases from the inside to the outside. By setting the gradually increasing opening, the extension arm 103 can extend and expand outward from the inside to fit more tightly with the inner wall of the profile.

[0030] like Figure 1-4 As shown: The inner side of the extension arm 103 is provided with outward expansion protrusions 5. The outward expansion protrusions 5 are used to contact the pressing handle 3. When the pressing handle 3 is pressed into the slot 2, the pressing handle 3 and the outward expansion protrusions 5 abut against each other and push the extension arm 103 to expand to both sides through the outward expansion protrusions 5.

[0031] like Figure 2 As shown: The pressing handle 3 includes a pushing part 303 and a pressing part 304. The pushing part 303 and the pressing part 304 are integrally formed. The shape and size of the pushing part 303 are matched with the slot 2. The handle shaft 301 is integrally formed at the end of the pushing part 303 away from the pressing part 304.

[0032] like Figure 4 As shown: the end of the pressing part 304 away from the pushing part 303 protrudes from the first connecting part 101 and its lower surface is formed with a slope 302. When it is necessary to connect with the profile, the end of the pressing part 304 with the slope 302 and extending out of the first connecting part 101 is first inserted into the forming to play a guiding role, and then the entire first connecting part 101 is inserted into it.

[0033] like Figure 1-3As shown: The inner sides of the first connecting part 101 and the second connecting part 102 are both provided with fastening grooves 6, which can make them more tightly and firmly connected to the profile.

[0034] In this embodiment, the profile used is an aluminum strip. The aluminum strip has protrusions that match the fastening groove 6. During installation, the first connecting part 101 and the second connecting part 102 are respectively inserted into two different aluminum strips. Specifically, when the second connecting part 102 extends into the aluminum strip, its fastening groove 6 engages with the protrusions, locking the second connecting part 102 within the aluminum strip. The first connecting part 101, having a pressing handle 3 and an extension arm 103,... When inserted into the aluminum strip on the other side, the downward pressure of the pressing handle 3 causes the extension arms 103 on both sides to extend outward, thereby engaging the fastening groove 6 on the extension arm 103 with the protrusion inside the aluminum strip to achieve a fixing effect. When it is necessary to loosen and remove the first connecting part 101, simply move the pressing handle 3 upward to drive the extension arm 103 to retract, thereby separating the fastening groove 6 and the protrusion, and then pulling the first connecting part 101 out of the aluminum strip. The operation is simple and the installation is convenient.

[0035] The working principle of this utility model is as follows:

[0036] By creating slots 2 in the first connecting portion 101 and / or the second connecting portion 102, extension arms 103 are formed on both sides of the slots 2. Simultaneously, a pressing handle 3 is provided within the slots 2 to push the extension arms 103 to expand laterally. In use, the pressing handle 3 is first pulled upwards from the slots 2, and then the first connecting portion 101 and the second connecting portion 102 are inserted into different profiles. As the connecting portion with the pressing handle 3 enters the profile, the inner wall of the profile presses down the pressing handle 3, causing the pressing handle 3 and the inner side of the extension arm 103 to... The outward protrusion 5 contacts the extension arms 103 on both sides, thereby pushing them outward and expanding them until they clamp against the inner wall of the profile. In this way, simply pressing down the pressure handle 3 will cause the extension arms 103 on both sides to expand outward and press against the profile. The overall structure is simple and easy to operate. It can achieve a fastening effect without the need for self-tapping screws and will not damage the thin wall of the profile. This solves the technical problem that existing corner brackets are not only cumbersome to operate, but also easily damage the thin wall structure of the profile during the tightening of self-tapping screws, resulting in unstable aluminum alloy profile connections and affecting the strength and appearance of the aluminum alloy profile.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A novel expandable corner bracket, comprising a corner bracket body (1), the corner bracket body (1) comprising a first connecting portion (101) and a second connecting portion (102) for connecting profiles, characterized in that: The first connecting part (101) has a slot (2), and extension arms (103) are formed on both sides of the slot (2). A pressing handle (3) for pushing the extension arms (103) on both sides to expand outward is movably provided in the slot (2).

2. The novel expandable corner code according to claim 1, characterized in that: Movable holes (4) are provided on the inner sidewalls of the extension arms (103) on both sides of the slot (2). One end of the pressing handle (3) is provided with a handle shaft (301) that matches the movable hole (4). The pressing handle (3) is rotatably disposed in the slot (2) of the first connecting part (101) through the handle shaft (301).

3. The novel expansion corner code according to claim 1, characterized in that: The slot (2) includes a connecting area (201) for installing the pressure handle (3) and an extension area (202) for pushing the extension arm (103), wherein the opening diameter of the extension area (202) gradually increases from the inside to the outside.

4. A novel inflatable corner code according to claim 3, characterized in that: The inner side of the extension arm (103) is provided with outward expansion protrusions (5). When the pressing handle (3) is pressed into the slot (2), the pressing handle (3) and the outward expansion protrusions (5) abut against each other and push the extension arm (103) to expand to both sides through the outward expansion protrusions (5).

5. A novel inflatable corner code according to claim 2, characterized in that: The pressing handle (3) includes a pushing part (303) and a pressing part (304). The pushing part (303) matches the slot (2). The handle shaft (301) is integrally formed at the end of the pushing part (303) away from the pressing part (304).

6. A novel inflatable corner code according to claim 5, characterized in that: The pressing part (304) protrudes from the first connecting part (101) at one end away from the pushing part (303), and its lower surface is formed with a slope (302).

7. A novel inflatable corner code according to any one of claims 1-6, characterized in that: The first connecting part (101) and the second connecting part (102) are arranged at 90° to form an L-shaped corner bracket body (1), which is used to connect the horizontal profile and the vertical profile respectively.

8. A novel inflatable corner code according to claim 7, characterized in that: The inner sides of the first connecting part (101) and the second connecting part (102) are provided with fastening grooves (6).

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