A square tube connector

Abstract

The utility model relates to square tube connecting piece technical field, specifically speaking is a square tube connecting piece, two shape same size equal shell buckling are formed, the shell is composed of main part and insertion end, the lower shell insertion end of square tube connecting piece is equipped with nut seat, be equipped with nut on the nut seat, the nut is equipped with bolt in screw thread connection, the insertion end of upper shell is equipped with the aperture of corresponding size with bolt, and the square tube connecting piece is composed of main part and insertion end, and one connecting piece is formed through two pieces of connecting shell that can expand outward, can quickly insert the connecting piece into the inside of two square tubes adjacent vertically, realizes the quick connection of square tube through the bolt control two connecting shell expansion, guarantees the flatness of square tube upper and lower, is convenient to dismantle, and good flexibility.

Description

Technical Field

[0001] This utility model relates to a connector, specifically a square tube connector, and belongs to the technical field of square tube connectors. Background Technology

[0002] Square tubes are hollow, long steel strips with a square cross-section, also known as cold-bent steel profiles or square tubing. They are formed through cold bending or hot rolling processes. Square tubes have high strength and rigidity, and can withstand greater pressure and bending forces. They are commonly used in building structures, machinery manufacturing, vehicle manufacturing, furniture manufacturing, and other fields. In building structures, square tubes are often used to construct frames and support structures. Square tube connectors are mechanical parts specifically designed to connect square tubes, helping to achieve a stable connection between square tubes, thereby constructing various structures and frames.

[0003] Currently, when connecting square tubes, exposed bolts are usually used to fix two adjacent square tubes, or they are directly welded together. The exposed bolt fixing method not only causes the outer side of the entire square tube frame to be uneven and has poor flatness, but also makes the exposed bolts prone to moisture and rust. Like the welding method, it is not easy to disassemble and has poor flexibility. Utility Model Content

[0004] The purpose of this utility model is to provide a square tube connector to solve the above problems. The connector is composed of two expandable connecting shells, which can be quickly inserted into two vertically adjacent square tubes. The expansion of the two connecting shells is controlled by bolts to achieve quick connection of the square tubes, ensuring the flatness of the square tubes, facilitating disassembly and providing good flexibility.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a square tube connector, which is formed by fastening together two shells of the same shape and size. Each shell consists of a main body and an insertion end. The insertion end of the lower shell of the square tube connector is provided with a nut seat, and a nut is provided on the nut seat. The nut is threaded with a bolt. The insertion end of the upper shell of the square tube connector is provided with an opening corresponding to the size of the bolt.

[0006] Preferably, the main body has an insertion end at each of its vertical ends.

[0007] Preferably, the main body has a threaded hole.

[0008] Preferably, one end of the main body is provided with the insertion end.

[0009] Preferably, the main body and the insertion end have a T-shaped structure.

[0010] Preferably, the insertion end is provided with a fixing slot, the fixing slot holds a fixing block, and the fixing block is threaded with a fixing bolt.

[0011] Preferably, the end face of the main body is provided with two protrusions, the size and position of which correspond to the insertion holes provided on the square tube, and there are two protrusions with different diameters.

[0012] Preferably, the end face of the main body has the same cross-sectional shape and size as the square tube.

[0013] Preferably, the nut is a hexagonal nut and the bolt is an internal hexagonal bolt.

[0014] The beneficial effects of this utility model are as follows: Four right-angled square tube connectors are used. Two nut seats are fixed to the lower shell of the right-angled square tube connectors. Nuts are placed inside the nut seats, and the two nut seats are symmetrically arranged about the center of the right-angled square tube connectors. Two hexagon socket head cap screws are threaded to the upper shell of the square tube connectors, and the hexagon socket head cap screws are threaded to the nuts. The hexagon socket head cap screws can be positioned below the surface of the connector. Two adjacent perpendicular square tubes are inserted into the two ends (insertion ends) of the right-angled connector. Furthermore, by using an hexagon socket wrench to rotate the hexagon socket head cap screws from the square tubes, the upper and lower shells of the square tube connectors are expanded outward, achieving contact between the square tube connector and the inner wall of the square tube. The hexagon socket head cap screws are below the surface of the four square tubes, which increases the stability of the overall structure and protects the hexagon socket head cap screws from corrosion. It is also convenient for disassembly and assembly and has good flexibility. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the connection structure of the square tube and square tube connector of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the square tube connector and the internal hexagonal bolt of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the internal hexagon bolt and nut seat of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the square tube connector and nut seat of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between the square tube connector and the square tube of this utility model;

[0021] Figure 7 This is a schematic diagram of the square tube connector and the protruding connection structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the connection structure of the fixing block, square tube connector and fixing bolt of this utility model;

[0023] Figure 9 This is a schematic diagram of the connection structure of the square tube connector and the internal hexagonal bolt of this utility model;

[0024] Figure 10 This is a schematic diagram of the connection structure of the square tube connector, fixing block and fixing bolt of this utility model.

[0025] In the diagram: 1. Square tube; 2. Square tube connector; 3. Nut seat; 4. Socket head bolt; 5. Fixing bolt; 6. Protruding post; 7. Insertion hole; 8. Fixing block. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-10 As shown, a square tube connector includes two shells of the same shape and size that are fastened together. Each shell consists of a main body and an insertion end. The insertion end of the lower shell of the square tube connector 2 is provided with a nut seat 3, and a hexagonal nut is provided on the nut seat 3. The nut is threadedly connected to an internal hexagonal bolt 4. The insertion end of the upper shell is provided with an opening corresponding to the size of the bolt 4.

[0028] As a technical optimization of this utility model, an insertion end is provided at each of the vertical ends of the main body, so that the insertion ends at both ends of the main body can be inserted into the square tube 1.

[0029] As a technical optimization of this utility model, the main body is provided with a threaded hole, which facilitates the installation of a stud bracket on the main body and makes it easy to lay flat on the ground.

[0030] As a technical optimization of this utility model, one end of the main body is provided with an insertion end, so as to install one square tube 1 on the inside of another square tube 1.

[0031] As a technical optimization of this utility model, the main body and an insertion end are T-shaped structures, so that the insertion end on the main body can be inserted into the inside of the square tube 1.

[0032] As a technical optimization of this utility model, the insertion end is provided with a fixing slot, the fixing slot holds the fixing block 8, and the fixing block 8 is threaded with a fixing bolt 5, so as to fix the fixing bolt 5 to the square tube 1.

[0033] As a technical optimization of this utility model, the end face of the main body is provided with two protruding posts 6. The size and position of the protruding posts 6 correspond to the insertion holes 7 provided on the square tube 1. There are two protruding posts 6, and the diameters of the two protruding posts 6 are different, which facilitates the alignment of the main body.

[0034] As a technical optimization of this utility model, the end face of the main body is consistent with the cross-sectional shape and size of the square tube 1, so that the surface of the square tube 1 is flush with the surface of the main body, which increases the aesthetics.

[0035] In use, when connecting four rectangular square tubes 1 (square tube 1 can refer to many installation pipe fittings), four right-angled square tube connectors 2 are used. Each square tube connector 2 consists of two symmetrical shells fastened together, and has a main body and two insertion ends connected together. The diameter of the two insertion ends is smaller than the diameter of the main body. The insertion ends are inserted into the inside of the square tube 1, while the main body is located outside the square tube 1 and flush with it, increasing the flatness and aesthetics of the structure. Two nut seats 3 are fixed to the lower shell of the right-angled square tube connector 2. Nuts are placed inside the two nut seats 3, and the two nut seats 3 are symmetrically arranged about the center of the L-shaped connector 2. Two hexagonal socket bolts 4 are then inserted from the square tube... The upper housing of connector 2 is threaded, and the internal hex bolt 4 is threaded with the nut. The internal hex bolt 4 is located below the surface of the square tube connector 2. Two adjacent vertical square tubes 1 are inserted into the two ends of the right-angle square tube connector 2. Further, an internal hex wrench is inserted into the hole on the surface of the square tube 1 and inserted into the internal hex bolt 4. The internal hex bolt 4 can be rotated to expand the upper and lower housings of the square tube connector 2, so that the square tube connector 2 and the inner wall of the square tube 1 are in contact. The other three right-angle square tube connectors 2 are connected to the other two square tubes 1 in the same way. The internal hex bolt 4 is below the surface of the four square tubes 1, which increases the stability of the overall structure and protects the internal hex bolt 4 from corrosion. It is easy to disassemble and assemble and has good flexibility.

[0036] If two square tubes 1 are to be installed between two other square tubes 1, that is, when the ends of the two outer square tubes 1 protrude a section, four T-shaped square tube connectors 2 are required. Each square tube connector 2 consists of a main body and an insertion end. The T-shaped square tube connector 2 is also composed of two symmetrical shells, and nut seats 3 and hexagon socket head cap screws 4 are installed inside to expand the T-shaped square tube connector 2. A fixing block 8 is fixed inside the T-shaped square tube connector 2. The square tube connectors 2 at the ends of the two inner square tubes 1 are aligned with the holes on the sides of the two outer square tubes 1, and fixing bolts 5 are inserted through the holes on the two outer square tubes 1. The fixing bolt 5 is threaded to the fixing block 8, thus fixing the two adjacent vertical square tubes 1. The internal hex bolt 4 on the square tube connector 2 inside the inner square tube 1 is rotated to expand the T-shaped square tube connector 2 outward, thus fixing the adjacent vertical square tubes 1. The fixing bolt 5 is also located inside the square tube 1 to avoid exposure and corrosion, and to facilitate disassembly. When the T-shaped square tube connector 2 is installed with the square tube 1, it can be inserted into the insertion holes 7 on the sides of the two outer square tubes 1 through the large and small protrusions 6 at its end. This completes the installation of the T-shaped square tube connector 2 with the square tube 1 and prevents rotation between the two adjacent square tubes 1, increasing the stability of the connection.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A square tube connector, characterized in that: It is composed of two shells of the same shape and size that are fastened together. Each shell consists of a main body and an insertion end. The lower shell insertion end of the square tube connector is provided with a nut seat, and a nut is provided on the nut seat. The nut is threaded with a bolt. The upper shell insertion end of the square tube connector is provided with an opening corresponding to the size of the bolt.

2. The square tube connector according to claim 1, characterized in that: The main body has an insertion end at each of its vertical ends.

3. The square tube connector according to claim 2, characterized in that: The main body has threaded holes.

4. The square tube connector according to claim 1, characterized in that: The main body has an insertion end at one end.

5. The square tube connector according to claim 4, characterized in that: The main body and an insertion end have a T-shaped structure.

6. The square tube connector according to claim 5, characterized in that: The insertion end is provided with a fixing slot, the fixing slot holds a fixing block, and the fixing block is threaded with a fixing bolt.

7. The square tube connector according to claim 6, characterized in that: The end face of the main body is provided with two protrusions. The size and position of the protrusions correspond to the insertion holes provided on the square tube. There are two protrusions, and the diameters of the two protrusions are different.

8. The square tube connector according to claim 1, characterized in that: The end face of the main body has the same shape and size as the cross-section of the square tube.

9. The square tube connector according to claim 1, characterized in that: The nut is a hexagonal nut, and the bolt is an internal hexagonal bolt.

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