Square tube cross fastener

Abstract

The utility model relates to picking instrument technical field provides a square tube cross buckle, including the T type base that is composed of buckle mounting panel and plane board, the plane board sets up connecting hole, sets up bolt through connecting hole, the bolt end sets up pull -out clamping plate, sets up steel grating platform between pull -out clamping plate and buckle mounting panel, buckle mounting panel sets up perforation, sets up rotating shaft through perforation, the rotating shaft end installs tubular base, tubular base is rotatory and is installed lock buckle through tubular base side hole, and lock buckle and tubular base are clamped and install scaffold steel pipe, avoid the security risk hidden danger of the direct use of steel plate support pad and the high -altitude falling object of the security risk hidden danger of the direct use of steel plate support pad.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding installation technology, specifically to a square tube cross coupler. Background Technology

[0002] Scaffolding refers to various supports erected on construction sites to facilitate worker operations and vertical and horizontal transportation. With the development of the construction industry, scaffolding is increasingly widely used in industrial construction. It allows construction workers to work in different locations, provides external protective frames for workers at heights, and ensures their safety during high-altitude operations. Simultaneously, various types of ground-supported scaffolding are extensively used in steel structure installation for material handling, storage, support, and other load-bearing purposes, including material receiving platforms, formwork support frames, and installation support frames, playing a crucial role in construction.

[0003] Existing scaffolding couplers generally refer to intermediate connecting parts that connect two components. In construction engineering, they are mostly used to fix steel pipe scaffolding with an outer diameter of Φ48mm. Ground scaffolding erected on steel structures not only needs to be connected between the scaffolding pipes, but also needs to be supported on steel beams or steel grating platforms in many cases. There is no mature solution for connecting existing scaffolding couplers to steel grating platforms.

[0004] Existing scaffolding often uses steel base plates directly placed on steel platforms. When the platform is small or has irregular edges, the steel base plates are not easy to fix and lack reliable connections. The steel base plates can only transmit vertical loads, and there is a risk of slippage when the structure vibrates. The base plates can also pass through the steel platform, posing a risk of falling objects from height. Because steel structures are usually permanent components, they have high requirements for paint corrosion protection and structural impact resistance. When scaffolding pipes are directly placed on the ground, they can cause damage to the structure, thus posing certain safety hazards to the use of scaffolding. Utility Model Content

[0005] The purpose of this utility model is to provide a square tube cross fastener that can solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model proposes a square tube cross fastener, including a T-shaped base composed of a fastener mounting plate and a flat panel. The flat panel has a connecting hole, through which a bolt is installed. A lifting clamp is installed at the end of the bolt, and a steel grating platform is installed between the lifting clamp and the fastener mounting plate. The fastener mounting plate has a through hole, through which a rotating shaft is installed. A tubular base is installed at the end of the rotating shaft. A locking fastener is rotatably installed on the tubular base through a side hole. The scaffolding steel pipe is clamped between the locking fastener and the tubular base.

[0007] Further configured, the tubular base includes a substrate, with tubular base side holes fixedly installed on both sides of the substrate, an inner side surface of the tubular base provided on the inner side of the substrate, a bottom hole opened perpendicular to the inner side surface of the base, and a pin hole opened on the side wall of the substrate.

[0008] Further configured, the locking element includes an inner arc plate, one end of which has a groove, and the end of the groove has an anti-detachment protrusion, and the other end of the inner arc plate has a locking element side hole.

[0009] A further configuration is that the adjusting shaft passes through the groove, and a disc-shaped nut is provided on the outside of the groove and on the adjusting shaft.

[0010] Further configuration involves adjusting the shaft between the side holes of the tubular base, with bolts passing through the side holes and the end of the base.

[0011] A further provision is made to place a washer between the groove and the disc nut.

[0012] Further configured such that the fastener mounting plate is perpendicular to the flat plate.

[0013] Further configured, the lifting clamp includes an arc-shaped plate, with a bolt connection hole at the center of the arc-shaped plate, and the upper surface of the arc-shaped plate is provided with the lifting clamp.

[0014] Further configured, the upper surface of the lifting clamp is raised. It is configured with a serrated shape, so that the upper surface of the lifting clamp contacts the lower sidewall of the steel grating platform.

[0015] Further configured, the shaft portion is fixedly mounted on the end sidewall.

[0016] The beneficial effects of one or more of the above technical solutions: (1) This utility model uses a T-shaped base to install the tubular fastener on the steel grating platform and uses a lifting clamp to fix it, which can avoid the platform damage caused by the scaffolding pipe falling directly on the steel grating platform, and can also avoid the safety risks of falling objects from high altitudes caused by the direct use of steel plate supports.

[0017] (2) The tubular base of this utility model is connected to the T-shaped base through the rotating shaft. When in use, the angle can be adjusted according to the actual position of the scaffolding upright. It can be used in independent small platforms and irregular parts of the edge to adapt to the installation of special positions such as the corners of the platform. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the installation structure of the present invention and the steel grating.

[0021] Figure 3 This is a schematic diagram of the tubular base of this utility model.

[0022] Figure 4 This is a structural schematic diagram of the locking component of this utility model.

[0023] Figure 5 This is a schematic diagram of the T-shaped base of this utility model.

[0024] Figure 6 This is a schematic diagram of the lifting clamp of this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the adjusting shaft of this utility model.

[0026] In the diagram, 1 is the lifting clamp; 101 is the arc-shaped plate; 102 is the bolt connection hole; and 103 is the upper surface of the lifting clamp. 2. T-shaped base; 201. Fastener mounting plate; 202. Flat plate; 203. Connecting hole; 204. Through hole; 3. Tubular base; 301. Bottom hole; 302. Side hole of tubular base; 303. Pin hole; 304. Base plate; 305. Inner surface of tubular base; 4. Locking fastener; 401. Side hole of locking fastener; 402. Inner arc plate; 403. Groove; 404. Anti-loosening protrusion; 5. Adjusting shaft; 501. End; 502. Shaft section; 6. Disc nut; 7. Bolt; 8. Cotter pin; 9. Rotating shaft; 10. Nut; 11. Bolt; 12. Washer.

[0027] 100. Grille connecting fasteners; 200. Scaffolding steel pipes; 300. Steel grille platform. Detailed Implementation

[0028] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0029] Reference Figure 1 A type of square tube cross fastener, see reference Figure 1 and Figure 2 The T-shaped base 2 is composed of a fastener mounting plate 201 and a flat panel 202. The fastener mounting plate 201 has a connecting hole 203. A bolt 117 is installed through the connecting hole 203. A lifting clamp 1 is installed at the end of the bolt 117. A steel grating platform 300 is installed between the lifting clamp 1 and the fastener mounting plate 201. Reference Figure 5A through hole 204 is made in the flat plate 202, and a rotating shaft 9 is set through the through hole 204. A tubular base 3 is installed at the end of the rotating shaft 9. A locking fastener 4 is rotatably installed on the tubular base 3 through the side hole 302 of the tubular base. The scaffolding steel pipe 200 is clamped between the locking fastener 4 and the tubular base 3.

[0030] Reference Figure 3 The tubular base 3 includes a base plate 304. Side holes 302 are fixedly installed on both sides of the base plate 304. An inner surface 305 is provided on the inner side of the base plate 304. A bottom hole 301 is opened perpendicular to the inner surface of the base. Pin holes 303 are opened on the side wall of the base plate 304. The inner surface 305 is an arc surface, which cooperates with the locking fastener and is fixed using an adjusting shaft 5 to clamp and secure the scaffolding tube. The tubular base is connected to the T-shaped base using a rotating cotter pin. It can be used to install ground-mounted scaffolding tubes 200 or for connecting and fixing obliquely placed scissor braces. The side holes 302 of the tubular base 3 are connected to the locking fastener 4 with bolts 7, and the other side is connected to the adjusting shaft 5 with bolts 7. The bottom hole 301 is fitted with a rotating shaft 9 and connected to the T-shaped base 2, and fixed using a cotter pin 8.

[0031] Reference Figure 4 The locking fastener 4 includes an inner arc plate 402. One end of the inner arc plate 402 has a groove 403, and the end of the groove 403 has an anti-loosening protrusion 404. The other end of the inner arc plate 402 has a locking fastener side hole 401. The inner side 402 is an arc surface that mates with the tubular base 3. It is connected to the tubular base 3 using connecting bolts 7. The scaffolding pipe is first placed against the inner side 305 of the tubular base, and then rotated to lock the scaffolding pipe from the axis of the connecting bolts 7. The other end is secured by an adjusting shaft 5 from the groove 403, and fixed with a nut. A wing nut 6 is used to lock it in place to prevent loosening. The anti-loosening protrusion 404 at the end of the locking fastener groove 403 prevents the nut from slipping off along the plane of the locking fastener. The radius of the inner arc surface 402 is slightly larger than the radius of the scaffolding pipe to accommodate different models of scaffolding pipes.

[0032] The adjusting shaft 5 passes through the groove 403, and a disc nut 6 is set on the outside of the groove 403 and on the adjusting shaft 5.

[0033] Reference Figure 1 and Figure 7 The adjusting shaft 5 includes an end 501 and a shaft portion 502. The end 501 is annular, and the shaft portion 502 is fixedly installed on the side wall of the end 501. The adjusting shaft 5 is located between the side holes 302 of the tubular base. The bolt 117 passes through the side hole of the base and the end 501. The end 501 is a sleeve structure, and the shaft portion 502 is a screw structure. It is fixed to the tubular base 3 with bolts. The other side cooperates with the locking fastener 4, so that the tubular base 3 and the locking fastener 4 cooperate to fix the scaffolding pipe.

[0034] A washer 12 is placed between the groove 403 and the disc nut 6. The scaffolding tube first fits against the inner side 305 of the tubular base. The scaffolding tube is then rotated to lock in place from the axis of the connecting bolt 7. The other end is secured by the adjusting shaft 5 from the groove 403. The nut is used for restraint and fixation, and the disc nut 6 is used to lock it in place to prevent loosening. The fastener mounting plate 201 is perpendicular to the flat plate 202. The base plate 202 is placed on the steel grating platform 300 and has connection holes 203. It is connected to the lifting clamp plate 1 by bolts 11 to fix the steel grating in the middle. Because the bolt connection is rotatable and adjustable, it is less constrained by the scaffolding pipe 200. The installation position can be adjusted according to the actual situation of the scaffolding pipe 200 and the steel grating platform 300, and is not limited by the position of the flat plate or the shape of the steel grating platform. Therefore, it is particularly suitable for use when the scaffolding pipe is placed on the edge of the platform. The other side of the flat plate is the flat plate 202, which is used for the ground placement of the scaffolding pipe and reliably transmits the vertical load of the scaffolding and its load-bearing platform. The upright plate 201 of the T-shaped base 2 is a fastener mounting plate, which is connected to the tubular base by cotter pins 9 and constrained and fixed by cotter pins 8. Reference Figure 6 The lifting clamp 1 includes an arc-shaped plate 101 with a bolt 117 connection hole 102 at its center. The arc-shaped plate 101 also has a lifting clamp upper surface 103, which is serrated. The upper surface 103 contacts the lower side wall of the steel grating platform 300. The upper surface 103 has a serrated structure, and its overall width is smaller than the width of the steel grating platform's vertical ribs. A bolt connection hole 102 is located in the center. This channel-shaped structure saves material and improves rigidity. Before use, the lifting clamp 1 is rotated parallel to the platform's vertical ribs and lowered into the gaps between the vertical ribs. Then, the lifting clamp 1 is rotated 90 degrees to be perpendicular to the vertical ribs and tightened using the connecting bolts 11 to ensure the lifting clamp is firmly pressed against the lower side of the steel grating platform's vertical ribs, preventing horizontal movement of the scaffolding steel grating connecting fasteners.

[0035] During the fixing process, the scaffolding steel grating connecting coupler 100 is placed on the steel grating platform 300. After fixing the scaffolding steel pipe 200 using tubular bases and locking couplers, the scaffolding steel grating connecting coupler 100 is secured to the steel grating platform 300 using lifting clamps. This avoids the risk of the base sliding and falling objects from height, and distributes the stress of the scaffolding across the steel grating platform. Because the scaffolding steel grating connecting coupler 100 can rotate freely along the axis of the scaffolding pipe 200 before fixing, it can be flexibly and conveniently installed in suitable positions on the steel grating platform 300, especially suitable for independent small platforms and irregularly shaped areas.

[0036] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A square tube cross fastener, characterized in that, The device includes a T-shaped base consisting of a fastener mounting plate and a flat panel. The flat panel has connecting holes, through which bolts are installed. A lifting clamp is installed at the end of the bolts, and a steel grating platform is installed between the lifting clamp and the fastener mounting plate. The fastener mounting plate has a through hole, through which a rotating shaft is installed. A tubular base is installed at the end of the rotating shaft. A locking fastener is rotatably installed on the tubular base through a side hole. The scaffolding steel pipe is clamped between the locking fastener and the tubular base.

2. The square tube cross fastener according to claim 1, characterized in that, The tubular base includes a base plate, with side holes of the tubular base fixedly installed on both sides of the base plate, an inner side of the tubular base provided on the inner side of the base plate, a bottom hole opened perpendicular to the inner side of the base plate, and a pin hole opened on the side wall of the base plate.

3. A square tube cross fastener according to claim 1, characterized in that, The locking element includes an inner arc plate with a groove at one end and an anti-detachment protrusion at the end of the groove. The other end of the inner arc plate has a locking element side hole.

4. A square tube cross fastener according to any one of claims 2 or 3, characterized in that, The adjusting shaft passes through the groove, and a disc-shaped nut is set on the outside of the groove and on the adjusting shaft.

5. A square tube cross fastener according to any one of claims 2 or 3, characterized in that, The adjusting shaft is located between the side holes of the tubular base, and the bolts pass through the side holes of the base and the end.

6. A square tube cross fastener according to claim 4, characterized in that, A washer is placed between the groove and the disc nut.

7. A square tube cross fastener according to claim 1, characterized in that, The fastener mounting plate is perpendicular to the flat plate.

8. A square tube cross fastener according to claim 1, characterized in that, The lifting clamp includes an arc-shaped plate with a bolt connection hole in the center, and the upper surface of the arc-shaped plate is provided with the lifting clamp.

9. A square tube cross fastener according to claim 1, characterized in that, The upper surface of the lifting clamp is serrated, and the upper surface of the lifting clamp contacts the lower side wall of the steel grating platform.

10. A square tube cross fastener according to claim 1, characterized in that, The adjusting shaft includes an end and a shaft portion. The end is annular, and the shaft portion is fixedly mounted on the side wall of the end.

Images