Square corner connecting piece

Abstract

The utility model relates to the technical field of metal frame assembly, in particular to a square corner connecting piece which comprises a cube, connecting screw holes are formed in the centers of six faces of the cube, at least one limiting pin hole is formed in each face of the cube, and the multiple limiting pin holes are annularly arrayed with the connecting screw holes as the center. The device further comprises a connecting block, the connecting block is installed on the side wall of the cube through a connecting bolt, one end of the connecting bolt is installed in the connecting screw hole, and a pin column which is connected with the limiting pin hole in a matched and inserted mode is formed at the end, close to the cube, of the connecting block. The connecting piece has the beneficial effects that quick assembly and disassembly between the cross rods, between the stand columns and between the cross rods and between the stand columns can be achieved through the connecting piece, the application range is wide, transportation and storage of the metal goods shelf are facilitated, quick assembly can be completed by machining the threaded shafts at the ends of the cross rods and the ends of the stand columns, and when the connecting piece is used for assembling a metal shelf body, assembly is convenient. The connection structure is less exposed, and the aesthetic property is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal frame assembly technology, and in particular to a square corner connector. Background Technology

[0002] Metal frames are manufactured using metal tubing. To ensure that two or more adjacent metal tubing pieces can be securely fixed together, most metal frames are currently fixed by welding. Welding makes the metal frame non-removable, meaning the frame can only be sold after manufacturing, which is inconvenient for painting, transportation, and e-commerce sales. Furthermore, welding can easily cause tubing deformation, affecting aesthetics. If bolted detachable connections are used, flanges are usually welded to both ends of the tubing. These flanges take up space, and the bolts are exposed, affecting appearance. Utility Model Content

[0003] This utility model proposes a square corner connector to solve the above-mentioned problems.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A square corner connector includes a cube, wherein each of the six faces of the cube has a connecting screw hole formed in the center, and each face of the cube has at least one limiting pin hole formed therein, and a plurality of limiting pin holes are arranged in a ring around the connecting screw hole.

[0006] It also includes a connecting block, which is installed on the side wall of the cube by a connecting bolt installed in the connecting screw hole at one end. The end of the connecting block near the cube is formed with a pin that is inserted into the limiting pin hole. The cross-sectional dimension of the connecting block is smaller than the side length of the cube.

[0007] Furthermore, the diameter of the connecting screw hole is 6-12cm.

[0008] Furthermore, the connecting screw holes on the six faces of the cube coincide at the center of the cube.

[0009] Furthermore, the diameter of the limiting pin hole is not less than 2mm and the depth is not less than 2mm.

[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: the connector enables rapid assembly and disassembly of crossbars, uprights, and columns, and has a wide range of applications, facilitating the transportation and storage of metal shelves. Rapid assembly can be completed by machining threaded shafts at the ends of the crossbars and uprights. When assembling metal frames using this connector, the exposed connection structure is reduced, improving the aesthetics. Attached Figure Description

[0011] 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 these drawings without creative effort.

[0012] Figure 1 This is a cubic perspective view of the present invention;

[0013] Figure 2 This is the front view of the cube of this utility model;

[0014] Figure 3 This is a cubic sectional view of the present invention;

[0015] Figure 4 This is a perspective view of the connecting block of this utility model;

[0016] Figure 5 This is a reference diagram of the combined state of this utility model;

[0017] Figure 6 This is a cross-sectional view of the present invention.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Cube; 2. Connecting screw hole; 3. Limiting pin hole; 4. Connecting bolt; 5. Connecting block; 6. Pin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-6 As shown, a square corner connector includes a cube 1. Each of the six faces of the cube 1 has a connecting screw hole 2 formed in the center. Other rods can be installed on each face of the cube 1 using bolts. Each face of the cube 1 has at least one limiting pin hole 3 formed in it. Multiple limiting pin holes 3 are arranged in a ring around the connecting screw hole 2.

[0022] It also includes a connecting block 5, which is installed on the side wall of the cube 1 by a connecting bolt 4 installed in the connecting screw hole 2 at one end. The end of the connecting block 5 near the cube 1 is formed with a pin 6 that is inserted into the limiting pin hole 3. The pin 6 is inserted into the limiting pin hole 3 to prevent the connecting block 5 connected to the cube 1 from rotating. The cross-sectional dimension of the connecting block 5 is smaller than the side length of the cube 1. The connecting block 5 is nested with a crossbar or column to achieve quick installation between crossbars, between crossbars and columns, and between columns.

[0023] In this embodiment, cube 1 is a cube with a side length of 20mm, the diameter of the connecting screw hole 2 is 6-8cm, and the diameter of the limiting pin hole 3 is 3mm and the depth is 2mm.

[0024] In this embodiment, the connecting screw holes 2 on the six faces of the cube 1 coincide at the center of the cube 1, which can reduce the weight of the cube 1. At the same time, the holes can be drilled directly through without considering the drilling depth, which is convenient for processing.

[0025] The working principle of this utility model is as follows: When in use, place the cube 1 at the connection node of multiple metal rods, install the connecting block 5 on the side wall of the cube 1, ensure that the pin 6 is inserted into the limiting pin hole 3 to prevent the connecting block 5 from rotating, and fix the connecting bolt 4 in the connecting screw hole 2 after passing through the connecting block 5. Then, the crossbar and column are put on the outside of the connecting block 5.

[0026] Components not described in detail in this article are existing technologies.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A square corner connector, characterized in that: The cube (1) includes a connecting screw hole (2) formed in the center of each of its six faces. Each face of the cube (1) is formed with at least one limiting pin hole (3), and multiple limiting pin holes (3) are arranged in a ring around the connecting screw hole (2). It also includes a connecting block (5), which is installed on the side wall of the cube (1) by a connecting bolt (4) installed in the connecting screw hole (2) at one end. The connecting block (5) has a pin (6) formed at one end near the cube (1) that is engaged with the limiting pin hole (3). The cross-sectional dimension of the connecting block (5) is smaller than the side length of the cube (1).

2. A square corner connector according to claim (1), characterized in that: The diameter of the connecting screw hole (2) is 6-12cm.

3. A square corner connector according to claim (1), characterized in that: The connecting screw holes (2) on the six faces of the cube (1) coincide at the center of the cube (1).

4. A square corner connector according to claim (1), characterized in that: The diameter of the limiting pin hole (3) is not less than 2mm and the depth is not less than 2mm.

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