Knob self-locking device for building and fastening I-shaped steel and Bailey pieces

Abstract

The utility model provides a knob self-locking device for building and fastening I-shaped steel and beret pieces, the upper part of the knob self-locking device clamps and limits the beret pieces, the lower part of the knob self-locking device clamps the I-shaped steel, the knob self-locking device comprises an upper part limiting and fixing mechanism and a lower part clamping mechanism, and the upper part limiting and fixing mechanism comprises a limiting seat, a connecting rod, a knob and a self-locking sleeve. The knob self-locking device has the advantages that the knob self-locking device is simple and reasonable in structure, the I-shaped steel and the Bailey pieces can be quickly fixed by quickly rotating the knob, the rotation and the displacement of the I-shaped steel and the Bailey pieces can be effectively limited, the assembly process can be obviously simplified, and the knob self-locking device is convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a knob self-locking device for fastening I-beams and Bailey bridge sections. Background Technology

[0002] Bailey bridge panels, also known as Bailey trusses, Bailey beams, or trusses, were first invented during World War II by a British engineer to address the need for rapid bridge erection during the war, and were named after him. They can be used in highway bridges, as assembly gantry cranes, guide beams, bridge erecting machines, and suspended platforms. Bailey truss combination gantry cranes utilize prefabricated highway steel bridge components to assemble the gantry frame, and their span and column height are adjustable to adapt to different work sites. They are widely used in highway, railway, municipal, building, and water conservancy construction projects, as well as in bridge construction prefabrication yards for lifting and moving prefabricated components and transporting large beams beside bridge piers.

[0003] Currently, the fastening of I-beams and Bailey panels mainly relies on U-shaped steel, which is time-consuming and labor-intensive during assembly; the assembly process is complicated, prone to errors, and affects the installation quality; moreover, the mechanical properties are unstable, making them easy to break free and affecting structural safety. Utility Model Content

[0004] The purpose of this utility model is to provide a knob self-locking device for fastening I-beams and Bailey bridge sections. Its structure is simple and reasonable. This knob self-locking device can quickly fix the I-beams and Bailey bridge sections by rapidly rotating the knob, effectively limiting their rotation and displacement, significantly simplifying the assembly process, and making it convenient and quick.

[0005] The purpose of this utility model is achieved as follows:

[0006] A knob self-locking device for fastening an I-beam and Bailey bridge assembly is disclosed. The upper part of the knob self-locking device locks and restricts the Bailey bridge assembly, while the lower part clamps the I-beam. The device comprises an upper limiting and fixing mechanism and a lower clamping mechanism. The upper limiting and fixing mechanism includes a limiting seat, a connecting rod, a knob, and a self-locking sleeve. The limiting seat is located at the bottom, and the self-locking sleeve is located directly above the limiting seat. The self-locking sleeve has a threaded connection for easy engagement with the knob. The knob is firmly fixed to the top of the limiting seat via the threaded connection within the self-locking sleeve. The connecting rod is arc-shaped and consists of two pairs of rods symmetrically arranged on both sides of the self-locking sleeve. The upper end of the limiting seat has a connecting block for connecting the connecting rod. Both the connecting block and the connecting rod have through holes for connection. The self-locking sleeve is firmly fixed to the top of the limiting seat via the connecting rod, connecting block, through holes, and connecting pin.

[0007] The lower clamping mechanism includes a left clamp and a right clamp. The left clamp is L-shaped and the right clamp is inverted L-shaped. The left clamp is fixedly installed at the lower end of the limiting seat and is located on the left side of the limiting seat. The right clamp is installed at the lower end of the limiting seat and is located on the right side of the limiting seat. The left clamp and the right clamp form a claw shape to clamp the I-beam.

[0008] Furthermore, the limiting seat is divided into a left limiting block and a right limiting block. A through hole is provided in the middle of the connection between the right side of the left limiting block and the left side of the right limiting block. A connecting pin is provided in the through hole to facilitate the rotation of the left limiting block and the right limiting block. A groove is provided on the upper surface of the connection between the right side of the left limiting block and the left side of the right limiting block. The groove facilitates the downward rotation of the knob to abut against the groove, so that the left limiting block and the right limiting block are always in a horizontal state.

[0009] Furthermore, the lower parts of the left and right limit blocks are provided with limit grooves, and the two upper limit fixing mechanisms firmly fix the Bailey sheet through the limit grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This knob self-locking device allows the knob to be turned, and the rotation and displacement of the I-beam and Bailey panels are effectively constrained by the self-locking screw rod. It has good self-locking and fixing performance, which can effectively limit the rotation and displacement, significantly simplify the assembly process, and is convenient and quick. The installation process is simple and easy to understand. The product can be completed through standardized processes and does not require on-site assembly. Attached Figure Description

[0012] Figure 1 This is a front view of the knob self-locking device in operation.

[0013] Figure 2 Left view of the knob self-locking device in operation.

[0014] Figure 3 This is a structural diagram of the knob self-locking device.

[0015] Figure 4 This is a top view of the knob self-locking device.

[0016] Figure 5 Left view of the knob self-locking device

[0017] Among them, 1 is a knob self-locking device, 11 is an upper limit fixing mechanism, 111 is a limit seat, 1111 is a left limit block, 1112 is a right limit block, 112 is a connecting rod, 1113 is a knob, 114 is a self-locking sleeve, 12 is a lower clamping mechanism, 121 is a left chuck, 122 is a right chuck, 2 is a Bailey plate, 3 is an I-beam, 4 is a connecting pin, 5 is a connecting block, 6 is a groove, and 7 is a limit groove. Detailed Implementation

[0018] like Figure 1-5 As shown, a knob self-locking device for fastening an I-beam and a Bailey bridge sheet is disclosed. The knob 113 self-locking device 1 has an upper part that locks and restricts the Bailey bridge sheet 2, and a lower part that clamps the I-beam 3. The knob 113 self-locking device 1 comprises an upper limiting and fixing mechanism 11 and a lower clamping mechanism 12. The upper limiting and fixing mechanism 11 includes a limiting seat 111, a connecting rod 112, a knob 113, and a self-locking sleeve 114. The limiting seat 111 is located at the bottom, and the self-locking sleeve 114 is located directly above the limiting seat 111. The self-locking sleeve 114 contains a square... The screw thread is used in conjunction with the knob 113. The knob 113 is firmly fixed above the limiting seat 111 by the screw thread inside the self-locking sleeve 114. The connecting rod 112 is arc-shaped and there are two pairs of connecting rods 112. The two pairs of connecting rods 112 are symmetrically arranged on both sides of the self-locking sleeve 114. The upper end of the limiting seat 111 is provided with a connecting block 5 for connecting with the connecting rod 112. Both the connecting block 5 and the connecting rod 112 are provided with through holes for connecting. The self-locking sleeve 114 is firmly fixed above the limiting seat 111 by the connecting rod 112, the connecting block 5, the through holes and the connecting pin 4.

[0019] The lower clamping mechanism 12 includes a left clamp 121 and a right clamp 122. The left clamp 121 is L-shaped and the right clamp 122 is inverted L-shaped. The left clamp 121 is fixedly disposed at the lower end of the limiting seat 111 and is located on the left side of the limiting seat 111. The right clamp 122 is disposed at the lower end of the limiting seat 111 and is located on the right side of the limiting seat 111. The left clamp 121 and the right clamp 122 form a claw shape to clamp the I-beam 3.

[0020] Furthermore, the limiting seat 111 is divided into a left limiting block 1111 and a right limiting block 1112. A through hole is provided in the middle of the connection between the right side of the left limiting block 1111 and the left side of the right limiting block 1112. A connecting pin 4 is provided in the through hole to facilitate the rotation of the left limiting block 1111 and the right limiting block 1112. A groove 6 is provided on the upper end face of the connection between the right side of the left limiting block 1111 and the left side of the right limiting block 1112. The groove 6 facilitates the downward rotation of the knob 113 to abut against the groove 6, thereby keeping the left limiting block 1111 and the right limiting block 1112 in a horizontal state.

[0021] Furthermore, the lower part of the left limiting block 1111 and the lower part of the right limiting block 1112 are provided with limiting grooves 7, and the upper limiting fixing mechanism 11 firmly fixes the Bailey piece 2 through the limiting grooves 7.

[0022] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A knob self-locking device for fastening an I-beam and a Bailey bridge plate, wherein the upper part of the knob (113) self-locking device (1) locks and restricts the Bailey bridge plate (2), and the lower part of the knob (113) self-locking device (1) clamps the I-beam (3), characterized in that, The knob (113) self-locking device (1) includes an upper limiting and fixing mechanism (11) and a lower clamping mechanism (12). The upper limiting and fixing mechanism (11) includes a limiting seat (111), a connecting rod (112), a knob (113), and a self-locking sleeve (114). The limiting seat (111) is located at the bottom, and the self-locking sleeve (114) is located directly above the limiting seat (111). The self-locking sleeve (114) has a thread inside to facilitate its use with the knob (113). The knob (113) is securely locked through the thread inside the self-locking sleeve (114). The connecting rod (112) is arc-shaped and is firmly fixed above the limiting seat (111). There are two pairs of connecting rods (112), which are symmetrically arranged on both sides of the self-locking sleeve (114). The upper end of the limiting seat (111) is provided with a connecting block (5) for connecting the connecting rod (112). Both the connecting block (5) and the connecting rod (112) are provided with through holes for connecting. The self-locking sleeve (114) is firmly fixed above the limiting seat (111) through the connecting rod (112), the connecting block (5), the through hole and the connecting pin (4). The lower clamping mechanism (12) includes a left clamp (121) and a right clamp (122). The left clamp (121) is L-shaped and the right clamp (122) is inverted L-shaped. The left clamp (121) is fixedly disposed at the lower end of the limiting seat (111) and is disposed on the left side of the limiting seat (111). The right clamp (122) is disposed at the lower end of the limiting seat (111) and is disposed on the right side of the limiting seat (111). The left clamp (121) and the right clamp (122) form a claw shape to clamp the I-beam (3).

2. The self-locking knob device for fastening I-beams and Bailey bridge panels according to claim 1, characterized in that: The limiting seat (111) is divided into a left limiting block (1111) and a right limiting block (1112). A through hole is provided in the middle of the connection between the right side of the left limiting block (1111) and the left side of the right limiting block (1112). A connecting pin (4) is provided in the through hole to facilitate the rotation of the left limiting block (1111) and the right limiting block (1112). A groove (6) is provided on the upper end face of the connection between the right side of the left limiting block (1111) and the left side of the right limiting block (1112). The groove (6) facilitates the downward rotation of the knob (113) to abut against the groove (6), so that the left limiting block (1111) and the right limiting block (1112) are always in a horizontal state.

3. The self-locking knob device for fastening I-beams and Bailey bridge panels according to claim 2, characterized in that: The lower part of the left limiting block (1111) and the lower part of the right limiting block (1112) are provided with limiting grooves (7), and the upper limiting fixing mechanism (11) firmly fixes the Bailey piece (2) through the limiting grooves (7).

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