Cantilever scaffold stand pipe and I-shaped steel connecting device

Abstract

The utility model provides an overhanging scaffold stand pipe and I-steel connecting device which comprises a fixing plate, a connecting pipe and a stand pipe, the fixing plate is provided with a connecting structure, the surface of the fixing plate is provided with a groove, a limiting locking mechanism is arranged in the groove and comprises a stress plate, the lower end of the connecting pipe is fixed to the bottom face of the groove, and the vertical pipe is connected with the connecting pipe. The connecting pipe is sleeved with the stress plate in a sliding mode, and a spring is arranged between the stress plate and the bottom face of the groove; the bottom face of the groove is provided with two U-shaped through grooves, the bottom face of the stress plate is provided with rod bodies corresponding to the U-shaped through grooves, the lower ends of the rod bodies penetrate into the U-shaped through grooves, the lower ends of the rod bodies are provided with first slopes, the bottoms of the U-shaped through grooves are provided with connecting rods, one ends of the connecting rods are provided with third slopes capable of making contact with the first slopes, and the stress plate is provided with lock pins. A fourth inclined plane is arranged at the lower end of the lock pin; a second inclined plane contacted with the fourth inclined plane is arranged at the other end of the connecting rod; the lower end of the vertical pipe is provided with a flange part, and the flange part is provided with a lock hole allowing the upper end of the lock pin to penetrate.

Description

Technical Field

[0001] The utility model relates to a connecting device for a cantilever scaffolding riser and an I-beam. Background Art

[0002] The steel pipe riser at the end of the cantilevered I-beam and the I-beam are usually fixed by welding 10cm to 15cm long steel bars to the end of the I-beam. The construction volume is large and the welding quality cannot be guaranteed. First, the welding form and welding rod quality must be selected and operated strictly in accordance with the requirements. There will be a slight displacement when the force is cantilevered, and it is difficult to control the quality of the horizontal weld, and even deformation and strength deterioration may occur; second, for different external frame systems, the spacing requirements of the internal and external risers of the scaffolding are different. When it is transported to other construction sites for use, the original welded steel bar heads need to be cut off and re-welded, which is time-consuming and labor-intensive; third, through multiple turnovers and uses, repeated welding and cutting will affect the service life of the I-beam. Summary of the invention

[0003] The problem to be solved by the utility model is to provide a cantilever scaffolding riser and I-beam connecting device, which overcomes the shortcomings of the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a cantilever scaffolding riser and I-beam connecting device, including a fixing plate, a connecting pipe and a riser, the fixing plate has a connecting structure for fixing the fixing plate to the I-beam, the surface of the fixing plate has a groove, the groove has a limit locking mechanism, the limit locking mechanism includes a force plate, the lower end of the connecting pipe is fixed to the bottom surface of the groove, the force plate is slidably sleeved on the connecting pipe, a spring is provided between the force plate and the bottom surface of the groove, and the two ends of the spring are respectively connected to the bottom surface of the groove and the bottom surface of the force plate;

[0005] The bottom surface of the groove has two U-shaped through grooves respectively located on both sides of the connecting pipe, the bottom surface of the force-bearing plate has a rod body corresponding to the U-shaped through grooves, the upper end of the rod body is fixed to the bottom of the force-bearing plate, and the lower end is deep into the U-shaped through groove, the lower end of the rod body has a first inclined surface, the bottom of the U-shaped through groove has a connecting rod, one end of the connecting rod has a third inclined surface that can contact the first inclined surface, the force-bearing plate has a through hole corresponding to the U-shaped through groove, a locking pin is passed through the through hole, the lower end of the locking pin is deep into the U-shaped through groove, the lower end of the locking pin has a fourth inclined surface, and the other end of the connecting rod has a second inclined surface contacting the fourth inclined surface;

[0006] The lower end of the vertical pipe is provided with a flange portion, and the flange portion is provided with a locking hole for the upper end of the locking pin to penetrate. The connecting pipe is sleeved in the vertical pipe, and the flange portion is in contact with the surface of the fixing plate.

[0007] Optionally, the connecting structure includes a first clamping plate and a second clamping plate respectively located on both sides of the fixing plate, the first clamping plate and the fixing plate are rigidly connected, an acute angle is formed between the first clamping plate and the bottom surface of the fixing plate, and the second clamping plate and the fixing plate are connected by bolts.

[0008] The advantages and positive effects of the utility model are as follows: a quick connection between the I-beam and the riser is achieved by using a sliding sleeve adjustable fixer, and the spacing distance between the fixers can be adjusted according to the spacing distance between different risers, and the utility model has good adjustability and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of a specific implementation method of the utility model;

[0010] Figure 2 yes Figure 1 A partial cross-sectional schematic diagram of

[0011] Figure 3 yes Figure 2 Schematic diagram of the neutral tube structure;

[0012] In the figure: 1, fixing plate; 11, groove; 2, first clamping plate; 3, second clamping plate; 4, connecting pipe; 5, force plate; 51, first inclined surface; 52, rod body; 6, connecting rod; 61, second inclined surface; 62, third inclined surface; 7, locking pin; 71, fourth inclined surface; 8, vertical pipe; 81, flange; 811, locking hole; 9, bolt; 10, spring. DETAILED DESCRIPTION

[0013] The utility model is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

[0014] like Figures 1 to 3 As shown, the utility model provides a cantilever scaffolding riser and I-beam connection device, including a fixed plate 1, a connecting tube 4 and a riser 8, a first clamping plate 2 and a second clamping plate 3 on both sides of the fixed plate 1, the first clamping plate 2 and the fixed plate 1 are rigidly connected, the first clamping plate 2 and the bottom surface of the fixed plate 1 form an acute angle, the second clamping plate 3 and the fixed plate 1 are connected by bolts 9, the surface of the fixed plate 1 has a groove 11, the groove 11 has a limit locking mechanism, the limit locking mechanism includes a force plate 5, the lower end of the connecting tube 4 is fixed to the bottom surface of the groove 11, the force plate 5 is slidably sleeved on the connecting tube 4, a spring 10 is provided between the force plate 5 and the bottom surface of the groove 11, and the two ends of the spring 10 are respectively connected to the bottom surface of the groove 11 and the bottom surface of the force plate 5;

[0015] The bottom surface of the groove 11 has two U-shaped through grooves respectively located on both sides of the connecting pipe 4. The bottom surface of the force-bearing plate 5 has a rod body 52 corresponding to the U-shaped through grooves. The upper end of the rod body 52 is fixed to the bottom of the force-bearing plate 5, and the lower end is deeply inserted into the U-shaped through groove. The lower end of the rod body 52 has a first inclined surface 51. The bottom of the U-shaped through groove has a connecting rod 6. One end of the connecting rod 6 has a third inclined surface 62 that can contact the first inclined surface 52. The force-bearing plate 5 has a through hole corresponding to the U-shaped through groove. A locking pin 7 is passed through the through hole. The lower end of the locking pin 7 is deeply inserted into the U-shaped through groove. The lower end of the locking pin 7 has a fourth inclined surface 71. The other end of the connecting rod 6 has a second inclined surface 61 that contacts the fourth inclined surface 71.

[0016] The lower end of the vertical pipe 8 has a flange 81, and the flange 81 has a locking hole 811 that allows the upper end of the locking pin 7 to penetrate. The connecting pipe 4 is sleeved in the vertical pipe 8, and the flange 81 contacts the surface of the fixing plate 1.

[0017] When the above structure is in use, the first clamping plate 2 is clamped on the I-beam, and then the second clamping plate 3 is tightened by the bolts 9 to fix the fixer on the I-beam, and then the vertical pipe 8 is sleeved on the connecting pipe 4, and the flange part 81 at the bottom of the vertical pipe 8 is pressed on the force-bearing plate 5. The force-bearing plate 5 moves downward under the pressure, and the first inclined surface 51 and the second inclined surface 61 contact to push the connecting rod 6 to one side of the locking pin 7, and the third inclined surface 62 and the fourth inclined surface 71 contact to push the locking pin 7 upward, and the locking pin 7 is inserted into the locking hole 811 to lock the flange part 81, thereby locking the vertical pipe 8 to prevent the vertical pipe 8 from rotating.

[0018] The device is made of stainless steel, with specifications and dimensions: galvanized stainless steel, the fixed plate 1 is 10cm long and 5cm wide, the riser 8 is 3cm in diameter and 9cm high, the wall thickness reaches 3mm, and it is sturdy and durable.

[0019] After the I-beams of the cantilever layer are laid, mark the upper part of the I-beams according to the spacing of the scaffolding risers, then clamp the first clamping plate 2 at a position 10 cm away from the end of the I-beam, and fix the other third clamping plate 3 at a position 30 cm away from the building wall. Tighten the lower nut of the bolt 9 on the second clamping plate 3 with an electric wrench, and the above device can be firmly fixed on the I-beam. After the installation is completed, the scaffolding risers 8 can be put on the connecting rods 4 for erection.

[0020] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A cantilever scaffolding riser and I-beam connection device, characterized in that: It comprises a fixing plate (1), a connecting pipe (4) and a vertical pipe (8), wherein the fixing plate (1) has a connecting structure for fixing the fixing plate (1) to an I-beam, the surface of the fixing plate (1) has a groove (11), the groove (11) has a limit locking mechanism, the limit locking mechanism comprises a force-bearing plate (5), the lower end of the connecting pipe (4) is fixed to the bottom surface of the groove (11), the force-bearing plate (5) is slidably sleeved on the connecting pipe (4), a spring (10) is provided between the force-bearing plate (5) and the bottom surface of the groove (11), and the two ends of the spring (10) are respectively connected to the bottom surface of the groove (11) and the bottom surface of the force-bearing plate (5); The bottom surface of the groove (11) has two U-shaped through grooves respectively located on both sides of the connecting pipe (4); the bottom surface of the force-bearing plate (5) has a rod body (52) corresponding to the U-shaped through grooves one by one; the upper end of the rod body (52) is fixed to the bottom of the force-bearing plate (5) and the lower end is inserted into the U-shaped through groove; the lower end of the rod body (52) has a first inclined surface (51); the bottom of the U-shaped through groove has a connecting rod (6); one end of the connecting rod (6) has a third inclined surface (62) capable of contacting the first inclined surface (51); the force-bearing plate (5) has a through hole corresponding to the U-shaped through grooves one by one; a locking pin (7) is inserted in the through hole; the lower end of the locking pin (7) is inserted into the U-shaped through groove; the lower end of the locking pin (7) has a fourth inclined surface (71); the other end of the connecting rod (6) has a second inclined surface (61) in contact with the fourth inclined surface (71); The lower end of the vertical pipe (8) has a flange portion (81), and the flange portion (81) has a locking hole (811) that allows the upper end of the locking pin (7) to pass through. The connecting pipe (4) is sleeved in the vertical pipe (8), and the flange portion (81) is in contact with the surface of the fixing plate (1).

2. The cantilever scaffolding riser and I-beam connection device according to claim 1, characterized in that: The connection structure comprises a first clamping plate (2) and a second clamping plate (3) respectively located on both sides of the fixing plate (1); the first clamping plate (2) and the fixing plate are rigidly connected, an acute angle is formed between the first clamping plate (2) and the bottom surface of the fixing plate (1); and the second clamping plate (3) and the fixing plate (1) are connected by bolts (9).

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