Bailey pin for constructing Bailey bridge

Abstract

The utility model discloses a bailey pin for constructing a bailey bridge, which comprises a bailey cap and a bailey pin body, the bailey cap is connected with the bailey pin body through a connecting block, a first groove which is sunken inwards is arranged in the connecting block, a through hole is arranged at the middle tail end of the right side of the bailey pin body, a second groove is arranged on the side surface of the middle part of the left side of the bailey cap, and the second groove is connected with the first groove. An elastic coating with an anti-collision function, an anti-extrusion function and an elastic damping function is arranged on the outer surface of a pin body of the Bailey pin, the Bailey pin adopts a punching mode of a punching machine, raw materials are directly punched and formed in a mold to obtain a finished product, the finished product is directly fed into an intermediate frequency furnace through a conveying belt to be quenched, then blackening treatment is performed, and finally punching is performed. The production efficiency can be well improved, production resources are saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of Bailey bridges, in particular to a Bailey pin for building Bailey bridges. Background Art

[0002] Bailey plates, also known as Bailey frames, Bailey beams, or trusses, were first invented by a British engineer during World War II to address the need for rapid bridge construction during the war. They are named after him. They can be used in highway bridges, assembling gantry cranes, guide beams, bridge erection machines, hanging baskets, and more. Bailey plates feature a simple structure, easy transportation, fast erection, high load capacity, good interchangeability, and strong adaptability.

[0003] During construction, Bailey bridges require fixed components to secure them and enhance their stability. Bailey pins are a key component in connecting the fixed components to the Bailey plates. However, existing Bailey pins are mostly made from ø50 round steel cut to the required length. The raw material is then clamped on a CNC lathe and repeatedly turned to the required dimensions. Finally, a drill press is used to drill holes in the required locations on the Bailey pins. After turning, the finished Bailey pins must be sent to a qualified external facility for quenching and blackening. This limited production of Bailey pins results in significant material waste, increasing production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a Bailey pin for Bailey bridge construction, which has a simple and reasonable structure. The Bailey pin is punched by a punch press, and the raw material is directly punched into a mold to obtain a finished product. The finished product is then directly sent to an intermediate frequency furnace via a conveyor belt for quenching, blackening, and finally punching. This can greatly improve production efficiency, save production resources, and reduce production costs.

[0005] The purpose of this utility model is achieved in this way:

[0006] A bailey pin for building a bailey bridge, characterized in that the bailey pin is provided on two bailey plates, the bailey pin is used to connect the two bailey plates, the bailey pin has a cylindrical structure, the bailey pin is divided into a beret cap and a bailey pin body, the beret cap has a cylindrical structure, the beret cap is provided horizontally, the diameter of the beret cap is 55 mm, and the thickness of the beret cap is 8 mm;

[0007] The beret cap and the beret pin body are connected via a connecting block, wherein a first inwardly concave groove is provided in the connecting block, and the radius of the first groove is 2.5 mm;

[0008] The Bailey pin body is cylindrical and is arranged on the right side of the beret. The Bailey pin body is arranged horizontally and has a length of 184.5 mm. The middle end of the right side of the Bailey pin body is truncated cone-shaped, and the angle α formed between the middle end and the vertical line is 8°.

[0009] Furthermore, the length of the middle end of the right side of the Bailey pin body is 35 mm;

[0010] Furthermore, a through hole is provided on the middle end of the right side of the Bailey pin body, and the diameter of the through hole is 6 mm;

[0011] Furthermore, a second groove is provided on the left middle side surface of the beret, and the diameter of the second groove is 1 mm.

[0012] Furthermore, an elastic coating having anti-impact, anti-extrusion and elastic shock-absorbing functions is provided on the outer surface of the Bailey pin.

[0013] Production process:

[0014] The raw materials are now directly punched into shape in the mold to obtain finished products by punching, and then sent directly to the medium frequency furnace via a conveyor belt for quenching treatment, then blackening treatment, and finally punching to produce Bailey pin products.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] Compared with general Bailey pin products, this Bailey pin has the advantage of low material consumption, which can save production materials and reduce the consumption rate of production materials, thereby reducing the production cost of this Bailey pin product and allowing the company to obtain more profits.

[0017] This Bailey pin is produced using a punching process, where the raw material is directly stamped into a mold to form the finished product. This product is then conveyed via a conveyor belt directly into an intermediate frequency furnace for quenching, blackening, and finally punching, allowing for automated production. Conventional Bailey pins are typically cut from ø50 round steel to the required length. The raw material is then clamped on a CNC lathe and repeatedly turned to the required dimensions. Finally, a drill press is used to drill the holes in the desired locations. After lathing, the finished product is sent to an external processing facility for quenching and blackening. In comparison, this production process offers high efficiency and automation, enabling a continuous production of Bailey pins.

[0018] The upper surface of the Bailey pin is provided with an elastic coating, which can improve the overall seismic resistance, deformation resistance and corrosion resistance of the Bailey pin, thereby increasing the service life of the product and allowing the Bailey pin to connect the Bailey piece for a longer period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the Bailey pin.

[0020] Figure 2 This is a cross-sectional view of the Bailey pin product in direction A.

[0021] Among them, 1 is a beret, 11 is a second groove, 2 is a beret pin body, 21 is a through hole, 3 is a connecting block, and 31 is a first groove. DETAILED DESCRIPTION

[0022] like Figure 1-2 As shown, a bailey pin for building a bailey bridge is characterized in that the bailey pin is provided on two bailey plates, the bailey pin is used to connect the two bailey plates, the bailey pin has a cylindrical structure, and the bailey pin is divided into a beret cap 1 and a bailey pin body 2. The beret cap 1 has a cylindrical structure and is arranged horizontally. The diameter of the beret cap 1 is 55 mm and the thickness of the beret cap 1 is 8 mm.

[0023] The beret 1 and the beret pin body 2 are connected via a connecting block 3. A first inwardly recessed groove 31 is provided in the connecting block 3. The radius of the first groove 31 is 2.5 mm.

[0024] The Bailey pin body 2 is a cylindrical structure. The Bailey pin body 2 is arranged on the right side of the beret 1. The Bailey pin body 2 is arranged horizontally. The length of the Bailey pin body 2 is 184.5 mm. The middle end on the right side of the Bailey pin body 2 is a truncated cone, and the angle between the middle end and the vertical line is α, and α is 8°.

[0025] Furthermore, the length of the middle end on the right side of the Bailey pin body 2 is 35 mm.

[0026] Furthermore, a through hole 21 is provided on the middle end of the right side of the Bailey pin body 2, and the diameter of the through hole 21 is 6 mm.

[0027] Furthermore, a second groove 11 is provided on the left middle side surface of the beret 1 , and the diameter of the second groove 11 is 1 mm.

[0028] Furthermore, 5. The outer surface of the Bailey pin body 2 is provided with an elastic coating that is anti-collision, anti-extrusion and has elastic shock-absorbing functions.

[0029] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, technicians in this field can make some substitutions and deformations of some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A Bailey pin for building a Bailey bridge, characterized in that: The bailey pin is provided on two bailey plates, and is used to connect the two bailey plates. The bailey pin is in a cylindrical structure, and is divided into a beret cap (1) and a bailey pin body (2). The beret cap (1) is in a cylindrical structure, and is provided horizontally. The diameter of the beret cap (1) is 55 mm, and the thickness of the beret cap (1) is 8 mm. The beret (1) and the beret pin body (2) are connected via a connecting block (3), wherein a first groove (31) recessed inward is provided in the connecting block (3), and the radius of the first groove (31) is 2.5 mm; The Bailey pin body (2) is a cylindrical structure. The Bailey pin body (2) is arranged on the right side of the beret (1). The Bailey pin body (2) is arranged horizontally. The length of the Bailey pin body (2) is 184.5 mm. The middle end of the right side of the Bailey pin body (2) is truncated cone-shaped, and the angle formed between the middle end and the vertical line is α, and α is 8°.

2. The Bailey pin for building a Bailey bridge according to claim 1, characterized in that: The length of the middle end of the right side of the Bailey pin body (2) is 35 mm.

3. The Bailey pin for building a Bailey bridge according to claim 1, characterized in that: A through hole (21) is provided at the middle end on the right side of the Bailey pin body (2), and the diameter of the through hole (21) is 6 mm.

4. The Bailey pin for building a Bailey bridge according to claim 1, characterized in that: A second groove (11) is provided on the left middle side surface of the beret (1), and the diameter of the second groove (11) is 1 mm.

5. The Bailey pin for building a Bailey bridge according to claim 1, characterized in that: The outer surface of the Bailey pin body (2) is provided with an elastic coating that is anti-collision, anti-extrusion and has elastic shock-absorbing functions.

Images