Multipurpose square pipe joint
By designing a detachable multi-purpose square tube joint and using bolt connections, the square tube support can be quickly assembled and disassembled. This solves the problem of inconvenient transportation and storage of the square tube support structure in the existing technology, realizes the rapid assembly and disassembly of the support, reduces production costs and improves structural strength.
Patent Information
- Application Number
- CN202521294888.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-06-24
AI Technical Summary
Existing square tube supports are connected by welding or bonding, resulting in a fixed structure that is not convenient for miniaturization, transportation, and storage.
Design a detachable multi-purpose square tube connector, which adopts a one-piece structure made of plastic or metal material. The design of the mounting holes and connectors enables quick assembly and disassembly. Multiple square tubes are fixedly connected by bolts to form a support.
It enables rapid assembly and disassembly of square tube supports, greatly reducing their size, facilitating transportation and storage, and providing high structural strength and low production costs.
Smart Images

Figure CN223923520U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipe fittings technology, and in particular relates to a multi-purpose square pipe connector. Background Technology
[0002] Currently, most supports made of square tubing are connected by welding or bonding. Their disadvantages are that the structure of the supports is relatively fixed, cannot be disassembled, and is not convenient for miniaturization, transportation, and storage. Summary of the Invention
[0003] The purpose of this utility model is to provide a multi-purpose square tube connector that is detachable, quick-assembled, and convenient for transport aircraft storage square tube supports.
[0004] The purpose of this utility model is to solve the following problem:
[0005] A multi-purpose square tube connector includes a first square tube with a first rectangular through hole, a first mounting hole penetrating the front and rear side walls of the first square tube at its lower part, and a second connector extending to the left or right side of the lower left or right side wall of the first square tube, wherein the front and rear side walls of the second connector are provided with second mounting holes penetrating the front and rear side walls.
[0006] As a further optimization of the above technical solution, the second connector is a front and rear side plate extending to the left or right from the front and rear side walls of the lower left or right side wall of the first square tube, and the second mounting hole is disposed on the front and rear side plates.
[0007] As a further optimization of the above technical solution, outwardly protruding reinforcing ribs are provided on the outward-facing surfaces of the front and rear side plates of the second connector and on the lower part of the first square tube.
[0008] As a further optimization of the above technical solution, the reinforcing rib includes multiple transverse reinforcing ribs and vertical reinforcing ribs arranged on the upper and lower sides of the first mounting hole and the second mounting hole in the vertical direction.
[0009] As a further optimization of the above technical solution, the second connector is a second square tube with a second rectangular through hole extending from the lower left or right side wall of the first square tube to the left or right side. The second mounting hole is provided on the front and rear side plates of the second square tube, and the first rectangular through hole and the second rectangular through hole are perpendicular to each other and interconnected.
[0010] As a further optimization of the above technical solution, right-angle chamfers or rounded corners are provided at the outer corners of the first and second mounting holes.
[0011] As a further optimization of the above technical solution, the multi-purpose square tube connector is an integral structure formed in one piece using plastic or metal materials.
[0012] The advantages of this invention compared to the prior art are: Attached Figure Description
[0013] Figure 1 This is the front view of Embodiment 1 of this utility model.
[0014] Figure 2 yes Figure 1 A sectional view along line AA.
[0015] Figure 3 yes Figure 1 BB-direction sectional view.
[0016] Figure 4 This is a three-dimensional schematic diagram of the present invention.
[0017] Figure 5 This is the front view of Embodiment 2 of this utility model.
[0018] Figure 6 yes Figure 1 CC-direction sectional view.
[0019] Figure 7 yes Figure 1 DD section view.
[0020] Figure 8 This is a three-dimensional schematic diagram of the present invention.
[0021] Figure 9 This is a three-dimensional schematic diagram of the utility model in use. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0023] Example 1 (see Figures 1-4 ):
[0024] A multi-purpose square tube connector includes a first square tube 10 with a first rectangular through hole 12. The lower part of the first square tube 10 is provided with a first mounting hole 11 that penetrates the front and rear side walls of the first square tube 10. A second connector 20 is provided on the lower left or right side wall of the first square tube 10, extending to the left or right. The front and rear side walls of the second connector 20 are provided with second mounting holes 23 that penetrate the front and rear side walls.
[0025] As a further optimization of the above technical solution, the second connector 20 is a front and rear side plate 22 extending from the front and rear side walls of the lower left or right side wall of the first square tube 10 to the left or right. The second mounting hole 23 is provided on the front and rear side plate 22, and the two front and rear side plates 22 form a clamp-type connection structure.
[0026] As a further optimization of the above technical solution, outwardly protruding reinforcing ribs are provided on the outward-facing surfaces of the front and rear side plates 22 of the second connector 20 and the lower part of the first square tube 10.
[0027] As a further optimization of the above technical solution, the reinforcing rib includes multiple transverse reinforcing ribs 21 and vertical reinforcing ribs 24 arranged on the upper and lower sides of the first mounting hole 11 and the second mounting hole 23 in the vertical direction.
[0028] As a further optimization of the above technical solution, a right-angle chamfer or rounded chamfer 13 is provided at the outer corner of the first mounting hole 11 and the second mounting hole 23.
[0029] As a further optimization of the above technical solution, the multi-purpose square tube connector is an integral structure formed in one piece using plastic or metal materials.
[0030] Example 2 (see Figures 5-8 ):
[0031] A multi-purpose square tube connector includes a first square tube 10 with a first rectangular through hole 12. The lower part of the first square tube 10 is provided with a first mounting hole 11 that penetrates the front and rear side walls of the first square tube 10. A second connector 20 is provided on the lower left or right side wall of the first square tube 10, extending to the left or right. The front and rear side walls of the second connector 20 are provided with second mounting holes 23 that penetrate the front and rear side walls.
[0032] As a further optimization of the above technical solution, the second connector 20 is a second square tube 25 with a second rectangular through hole 26 extending from the lower left or right side wall of the first square tube 10 to the left or right side. The second mounting hole 23 is provided on the front and rear side plates of the second square tube 25. The first rectangular through hole 12 and the second rectangular through hole 26 are perpendicular to each other and communicate with each other.
[0033] As a further optimization of the above technical solution, a right-angle chamfer or rounded chamfer 13 is provided at the outer corner of the first mounting hole 11 and the second mounting hole 23.
[0034] As a further optimization of the above technical solution, the multi-purpose square tube connector is an integral structure formed in one piece using plastic or metal materials.
[0035] The use of this utility model (see [reference]) Figure 9The lower sides of square tubes 30 and 35 are connected to square tube 32 through the structure of Embodiment 2, wherein: the first rectangular through hole 12 of the first square tube 10 is fitted onto the lower side of square tubes 30 and 35 and fixed with bolts, and the second rectangular through hole 26 of the second square tube 25 is fitted onto both ends of square tube 32 and fixed with bolts (the corresponding positions of square tubes 30, 35, and 32 are provided with bolt mounting through holes). Similarly, the lower sides of square tubes 31 and 34 are connected to square tube 33 through Embodiment 2; the first rectangular through hole 12 of the first square tube 10 of Embodiment 1 is fitted onto the lower side of square tubes 30 and 35 and fixed with bolts to the upper side of square tubes 30 and 35, and bolts are used to pass through the embodiment. 1. The second mounting holes 23 on the front and rear side plates 22 and the mounting holes on the upper part of the square tubes 31 and 34 are tightened with nuts to assemble a square tube bracket. Of course, other square tube brackets can be assembled using this utility model. After the assembled bracket is disassembled, its volume is greatly reduced, which is convenient for transportation and storage. Other types of brackets can also be assembled using disassembled square tubes. The structural design of this utility model is reasonable, the integrated structure has high strength, and the production cost is low. After the assembled bracket is disassembled, its volume is greatly reduced, which is convenient for transportation and storage. Different types of square tube brackets can be quickly assembled, and other types of brackets can also be assembled using disassembled square tubes. It has a wide range of applications.
[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that simple substitutions or modifications can still be made to the technical solutions or technical features described in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and substance of the technical solutions of the embodiments of this utility model, and are still within the protection scope of this utility model.
Claims
1. A multi-purpose square tube connector, comprising a first square tube with a first rectangular through hole, characterized in that: The lower part of the first square tube is provided with a first mounting hole that penetrates the front and rear side walls of the first square tube. A second connector is provided on the lower left or right side wall of the first square tube, extending to the left or right. The front and rear side walls of the second connector are provided with second mounting holes that penetrate the front and rear side walls.
2. The multi-purpose square tube connector according to claim 1, characterized in that: The second connector is a front and rear side plate extending to the left or right from the front and rear side walls of the lower left or right side wall of the first square tube, and the second mounting hole is provided on the front and rear side plates.
3. A multi-purpose square tube connector according to claim 2, characterized in that: Outwardly protruding reinforcing ribs are provided on the outward-facing surfaces of the front and rear side plates of the second connector and on the lower part of the first square tube.
4. A multi-purpose square tube connector according to claim 3, characterized in that: The reinforcing ribs include multiple transverse reinforcing ribs and vertical reinforcing ribs arranged on the upper and lower sides of the first and second mounting holes in the vertical direction.
5. A multi-purpose square tube connector according to claim 1, characterized in that: The second connector is a second square tube with a second rectangular through hole extending from the lower left or right side wall of the first square tube to the left or right. The second mounting hole is provided on the front and rear side plates of the second square tube. The first rectangular through hole and the second rectangular through hole are perpendicular to each other and communicate with each other.
6. A multi-purpose square tube connector according to claim 1, characterized in that: The outer corners of the first and second mounting holes are provided with right-angle chamfers or rounded corners.
7. A multi-purpose square tube connector according to any one of claims 1-6, characterized in that: The multi-purpose square tube joint is a one-piece structure made of plastic or metal materials.