Bailey piece lower chord reinforcing structure

Abstract

The utility model relates to the technical field of beret pieces, and particularly discloses a beret piece lower chord reinforcing structure which comprises an upper chord and a lower chord, three bearing rods are installed between the upper chord and the lower chord at equal intervals, a reinforcing frame is fixedly installed between every two adjacent bearing rods, the lower end of each reinforcing frame is fixedly connected with an installation base, and the installation bases are fixedly connected with the upper chord and the lower chord. The top of the lower chord member is provided with slots for mounting the bearing bars and the mounting seats, the front side and the rear side of the lower chord member are fixedly provided with three reinforcing sheets, and the positions of the three reinforcing sheets correspond to the three bearing bars respectively; according to the utility model, the reinforcing frame and the bearing bar can be mounted firstly, then the joint of the lower chord and the bearing bar is reinforced, and the reinforcing frame and the bearing bar are further stabilized by using the pressing plate, so that the stability of the lower chord can be effectively enhanced, the lower chord is prevented from loosening after being pressed or vibrated, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of Bailey plates, and in particular relates to a Bailey plate lower chord reinforcement structure. Background Art

[0002] Bailey plates, also known as Bailey frames, Bailey beams or trusses, are a type of steel structure with a special shape, usually made up of multiple steel pipes connected by nodes. They are widely used in construction projects such as highways, railways, municipal administration, architecture, water conservancy, lifting and moving prefabricated components in bridge construction prefabrication sites, and transporting girders next to bridge piers.

[0003] The lower chord of the Bailey plate is located at the bottom of the truss and usually needs to withstand greater pressure. After the existing Bailey plate is subjected to long-term pressure or vibration, the material of the lower chord is prone to fatigue, which causes the lower chord to loosen, affecting the overall stability of the Bailey plate and shortening the service life of the equipment. Therefore, it is necessary to provide a Bailey plate lower chord reinforcement structure to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a Bailey plate lower chord reinforcement structure to solve the problem in the prior art that the lower chord is prone to loosening after long-term use of the equipment.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A Bailey plate lower chord reinforcement structure comprises an upper chord and a lower chord, three load-bearing rods are installed at equal intervals between the upper chord and the lower chord, and a reinforcement frame is fixedly installed between every two adjacent load-bearing rods, the lower end of the reinforcement frame is fixedly connected to a mounting seat, the top of the lower chord is provided with a slot for installing the load-bearing rod and the mounting seat, three reinforcement plates are fixedly installed on the front and rear sides of the lower chord, the positions of the three reinforcement plates respectively correspond to the three load-bearing rods, and two groups of limit assemblies for fixing the mounting seat are symmetrically arranged on the front side of the lower chord.

[0007] Preferably, the reinforcing sheet is in a bent shape, and the bending angle of the bending surface of the reinforcing sheet is set to 30°-45°, three fastening bolts are installed on the reinforcing sheet, and threaded holes for installing fastening bolts are provided on the load-bearing rod and the lower chord rod.

[0008] Preferably, the limit assembly includes a sliding rod, a sliding hole for sliding the sliding rod is opened on the front side of the lower chord rod, a rear end of the sliding rod is fixedly connected to a limit block, and a limit groove for inserting the limit block is opened on the front side of the mounting seat.

[0009] Preferably, the limiting assembly also includes a telescopic spring and a pull ring, the pull ring is fixedly mounted on the front end of the sliding rod, the telescopic spring is sleeved on the outer surface of the sliding rod, the front end of the telescopic spring is fixedly connected to the inner wall of the sliding hole, and the rear end of the telescopic spring is fixedly connected to the limiting block.

[0010] Preferably, four fixing rings are fixedly connected in the slot, a connecting spring is fixedly installed in each fixing ring, and both ends of the connecting spring are fixedly connected to a pressure plate.

[0011] Preferably, the four fixing rings are respectively arranged on both sides of the two mounting seats.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can install the reinforcement frame and the load-bearing rod first by setting the limit assembly and the reinforcement sheet, and then strengthen the connection between the lower chord and the load-bearing rod, and use the pressure plate to further stabilize the reinforcement frame and the load-bearing rod, which can effectively enhance the stability of the lower chord, prevent the lower chord from loosening after being subjected to pressure or vibration, and extend the service life of the equipment.

[0014] 2. The utility model adopts a detachable installation method between the lower chord rod, the load-bearing rod and the reinforcement frame, so that the lower chord rod can be replaced alone when the lower chord rod is damaged, without replacing the entire equipment, thus saving the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 for Figure 1 The enlarged view of point A is shown;

[0017] Figure 3 for Figure 1 The local structure schematic diagram shown;

[0018] Figure 4 for Figure 3 Schematic diagram of structural decomposition shown;

[0019] Figure 5 It is a structural schematic diagram of the reinforcing sheet of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the lower chord of the utility model.

[0021] In the figure:

[0022] 1. Upper chord rod; 2. Lower chord rod; 3. Load-bearing rod; 4. Reinforcement frame; 5. Mounting seat; 6. Limiting assembly; 61. Sliding rod; 62. Telescopic spring; 63. Limiting block; 64. Limiting groove; 65. Pull ring; 7. Reinforcement sheet; 8. Slot; 9. Fixing ring; 10. Connecting spring; 11. Pressure plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 6 As shown, a Bailey plate lower chord reinforcement structure comprises an upper chord 1 and a lower chord 2, three load-bearing rods 3 are installed at equal intervals between the upper chord 1 and the lower chord 2, the upper ends of the load-bearing rods 3 are fixedly connected to the upper chord 1, and a reinforcement frame 4 is fixedly installed between every two adjacent load-bearing rods 3, the top of the reinforcement frame 4 is fixedly connected to the upper chord 1, and the lower end of the reinforcement frame 4 is fixedly connected to a mounting seat 5, a slot 8 for installing the load-bearing rod 3 and the mounting seat 5 is opened on the top of the lower chord 2, three reinforcement plates 7 are fixedly installed on the front and rear sides of the lower chord 2, and the positions of the three reinforcement plates 7 correspond to the three load-bearing rods 3 respectively, the reinforcement plates 7 can enhance the stability between the lower chord 2 and the load-bearing rod 3, and two groups of limit assemblies 6 for fixing the mounting seat 5 are symmetrically arranged on the front side of the lower chord 2, and the mounting seat 5 can be installed and disassembled by the limit assemblies 6.

[0025] Furthermore, the reinforcing sheet 7 is in a bent shape, and the bending angle of the bending surface of the reinforcing sheet 7 is set to 30°-45°. Three fastening bolts are installed on the reinforcing sheet 7. Threaded holes for installing fastening bolts are provided on the load-bearing rod 3 and the lower chord rod 2. The lower chord rod 2 and the load-bearing rod 3 can be connected through the reinforcing sheet 7.

[0026] Furthermore, the limit assembly 6 includes a slide rod 61, a slide hole for the slide rod 61 to slide is opened on the front side of the lower chord rod 2, the rear end of the slide rod 61 is fixedly connected to the limit block 63, and a limit groove 64 for the limit block 63 to be inserted into the front side of the mounting seat 5. By inserting the limit block 63 into the limit groove 64, the mounting seat 5 can be fixed in the slot 8.

[0027] Furthermore, the limit assembly 6 also includes a telescopic spring 62 and a pull ring 65. The pull ring 65 is fixedly installed on the front end of the sliding rod 61. The telescopic spring 62 is sleeved on the outer surface of the sliding rod 61. The front end of the telescopic spring 62 is fixedly connected to the inner wall of the sliding hole, and the rear end of the telescopic spring 62 is fixedly connected to the limit block 63. Pulling the pull ring 65 can drive the sliding rod 61 to slide, and the sliding of the sliding rod 61 can drive the limit block 63 to slide out of the limit groove 64, so that the mounting seat 5 can be removed from the slot 8, which is convenient for replacing the lower chord rod 2.

[0028] Specifically, four fixing rings 9 are fixedly connected in the slot 8, and the four fixing rings 9 are respectively arranged on both sides of the two mounting seats 5. A connecting spring 10 is fixedly installed in each fixing ring 9, and both ends of the connecting spring 10 are fixedly connected to a pressure plate 11. Figure 3 The connecting spring 10 is in a compressed state, and the pressure plate 11 can squeeze the load-bearing rod 3 and the mounting seat 5 through the elastic force of the connecting spring 10, which can further enhance the stability of the load-bearing rod 3 and the mounting seat 5 in the slot 8.

[0029] Working principle: during installation, the staff pulls the pull ring 65, the pull ring 65 drives the sliding rod 61 to slide, and the sliding rod 61 drives the limit block 63 to slide. At this time, the telescopic spring 62 is deformed, and then the load-bearing rod 3 and the mounting seat 5 are inserted into the slot 8. The limit block 63 enters the limit groove 64 through the elastic force of the telescopic spring 62, which can complete the limitation of the mounting seat 5. After the load-bearing rod 3 and the mounting seat 5 are inserted into the slot 8, the connecting spring 10 is deformed, and the pressure plate 11 clamps the load-bearing rod 3 and the mounting seat 5 through the elastic force of the connecting spring 10, further enhancing the stability of the connection between the lower chord rod 2 and the load-bearing rod 3 and the reinforcement frame 4. Finally, the reinforcement sheet 7 is installed on the lower chord rod 2 through the fastening bolts. The reinforcement sheet 7 can connect the lower chord rod 2 with the load-bearing rod 3 and strengthen the connection between the lower chord rod 2 and the load-bearing rod 3, which can effectively enhance the stability of the lower chord rod 2, prevent the lower chord rod 2 from loosening after being subjected to pressure or vibration, and extend the service life of the equipment.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Bailey plate lower chord reinforcement structure, comprising an upper chord (1) and a lower chord (2), characterized in that: Three load-bearing rods (3) are installed at equal intervals between the upper chord rod (1) and the lower chord rod (2), and a reinforcement frame (4) is fixedly installed between every two adjacent load-bearing rods (3). The lower end of the reinforcement frame (4) is fixedly connected to a mounting seat (5). A slot (8) for mounting the load-bearing rod (3) and the mounting seat (5) is provided at the top of the lower chord rod (2). Three reinforcement plates (7) are fixedly installed on both the front and rear sides of the lower chord rod (2). The positions of the three reinforcement plates (7) respectively correspond to the three load-bearing rods (3), and two groups of limit assemblies (6) for fixing the mounting seat (5) are symmetrically arranged on the front side of the lower chord rod (2).

2. A Bailey sheet lower chord reinforcement structure according to claim 1, characterized in that: The reinforcing sheet (7) is in a bent shape, and the bending angle of the bending surface of the reinforcing sheet (7) is set to 30°-45°. Three fastening bolts are installed on the reinforcing sheet (7), and threaded holes for installing the fastening bolts are provided on the load-bearing rod (3) and the lower chord rod (2).

3. The Bailey sheet lower chord reinforcement structure according to claim 1, characterized in that: The limit assembly (6) comprises a slide rod (61), a slide hole for the slide rod (61) to slide is provided on the front side of the lower chord rod (2), a rear end of the slide rod (61) is fixedly connected to a limit block (63), and a limit groove (64) for the limit block (63) to be inserted is provided on the front side of the mounting seat (5).

4. A Bailey sheet lower chord reinforcement structure according to claim 3, characterized in that: The limiting assembly (6) further comprises a telescopic spring (62) and a pull ring (65), wherein the pull ring (65) is fixedly mounted on the front end of the slide rod (61), the telescopic spring (62) is sleeved on the outer surface of the slide rod (61), the front end of the telescopic spring (62) is fixedly connected to the inner wall of the slide hole, and the rear end of the telescopic spring (62) is fixedly connected to the limiting block (63).

5. The Bailey sheet lower chord reinforcement structure according to claim 1, characterized in that: Four fixing rings (9) are fixedly connected in the slot (8), a connecting spring (10) is fixedly installed in each fixing ring (9), and both ends of the connecting spring (10) are fixedly connected to a pressure plate (11).

6. A Bailey sheet lower chord reinforcement structure according to claim 5, characterized in that: The four fixing rings (9) are respectively arranged on both sides of the two mounting seats (5).

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