Bridge prefabricated segment box girder

Abstract

The utility model discloses a bridge prefabricated segment box girder, which belongs to the technical field of bridge prefabricated segment box girders and comprises a support plate, a connecting beam is fixedly mounted at the bottom of the support plate, bases are fixedly mounted on the left side and the right side of the bottom of the support plate respectively, and insertion rods are arranged on the front side and the rear side of one side, far away from each other, of each base respectively. The corresponding sides of the inserting rods on the left side and the right side penetrate through the base, transverse plates are arranged on the corresponding sides of the base, hook bodies are fixedly installed on the sides, away from each other, of the inserting rods on the left side and the right side, a mounting base is fixedly installed on the front side of the bottom of an inner cavity of the connecting beam, and a connecting plate is arranged on the front side of the mounting base; limiting rods are fixedly mounted on the left side and the right side of the rear side of the connecting plate. According to the utility model, the hook body is arranged, so that the device can be conveniently mounted by a hoisting mechanism, the hoisting efficiency of the device is improved, the device can be pre-positioned, the deviation of the device during butt joint is avoided, and the mounting efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precast segment box girders of bridges, in particular to a precast segment box girder of a bridge. Background Technique

[0002] The precast segment box girder of a bridge is an important precast component in bridge engineering and is used for the main load-bearing structure of a bridge. It is prefabricated in a factory or on-site in advance and then transported to the construction site for installation, which significantly improves the construction efficiency and quality.

[0003] The existing device is not convenient for the hoisting mechanism to install it, making the installation process of the device more troublesome, reducing the installation efficiency of the device, and not being convenient for pre-positioning the device, resulting in easy deviation during the docking of the device, which has certain danger; therefore, we propose a precast segment box girder of a bridge to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precast segment box girder of a bridge to solve the problems raised in the above background technique.

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

[0006] A precast segment box girder of a bridge, including a support plate, a connecting beam is fixedly installed at the bottom of the support plate, bases are fixedly installed on both the left and right sides of the bottom of the support plate, inserting rods are arranged on the front side and the rear side of the bases on the sides away from each other, the inserting rods on both the left and right sides penetrate through the bases corresponding to each other, cross plates are arranged on the corresponding sides of the bases, hooks are fixedly installed on the sides away from each other of the inserting rods on both the left and right sides, a mounting seat is fixedly installed at the front side of the inner cavity bottom of the connecting beam, a connecting plate is arranged at the front side of the mounting seat, limiting rods are fixedly installed on both the left and right sides of the rear side of the connecting plate, and a limiting frame adapted to the limiting rods is fixedly installed at the rear side of the inner cavity bottom of the connecting beam.

[0007] Preferably, first bolts are arranged on both the front and rear sides of the corresponding sides of the cross plates, the sides away from each other of the first bolts thread through the cross plates and threadedly extend into the inserting rods, and first screw holes adapted to the first bolts are formed on one side of the cross plates and one side of the inserting rods.

[0008] Preferably, third bolts are arranged on both the left and right sides of the top of the limiting frame, the bottoms of the third bolts thread through the limiting frame and threadedly extend into the connecting beam, and third screw holes adapted to the third bolts are formed on both the left and right sides of the top of the limiting frame and the front side of the top of the limiting rods.

[0009] Preferably, second bolts are arranged on both the front and rear sides of the bottom of the base. The top of the second bolt threadedly extends into the interior of the insertion rod, and second screw holes adapted to the second bolts are formed in both the bottom of the base and the bottom of the insertion rod.

[0010] Preferably, the rear side of the limiting rod extends into the interior of the mounting seat. Fourth bolts are arranged on both the left and right sides of the rear side of the top of the mounting seat. The bottom of the fourth bolt threadedly extends into the interior of the limiting rod, and fourth screw holes adapted to the fourth bolts are formed at the four corners of the top of the mounting seat and at the rear side of the top of the limiting rod.

[0011] Preferably, clamping blocks are fixedly installed on both the front side of the support plate and the front side of the connecting beam, and clamping grooves adapted to the clamping blocks are fixedly formed on both the rear side of the support plate and the rear side of the connecting beam.

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

[0013] 1. In the present utility model, by rotating the first bolt in the forward direction to move it away from the insertion rod, then removing the cross plate, and then rotating the second bolt in the forward direction to move the second bolt away from the insertion rod and removing it, and then moving the insertion rods on the left and right sides away from each other to remove them, the hook body can be disassembled. Through the provided hook body, it is convenient for the hoisting mechanism to install it, improving the hoisting efficiency of the device.

[0014] 2. In the present utility model, by docking two identical devices together, making the clamping block extend into the interior of the clamping groove, then rotating the third bolt and the fourth bolt in the forward direction and removing them, pulling the connecting plate forward, the connecting plate drives the limiting rod to move forward, making the front side of the connecting plate extend into the interior of the limiting frame, then resetting the third bolt, and then rotating the fourth bolt into the interior of the front fourth screw hole to position the limiting rod, the device can be pre-positioned, avoiding deviation that is likely to occur during the docking of the device and improving the installation efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a precast segmental box girder of a bridge proposed by the present utility model;

[0016] Figure 2 is a rear-view structural schematic diagram of a precast segmental box girder of a bridge proposed by the present utility model;

[0017] Figure 3 is a partial structural exploded view of a precast segmental box girder of a bridge proposed by the present utility model;

[0018] Figure 4 is a sectional structural exploded view of a precast segmental box girder of a bridge proposed by the present utility model.

[0019] In the figure: 1, support plate; 2, connecting beam; 3, base; 4, insertion rod; 5, hook body; 6, cross plate; 7, first bolt; 8, second bolt; 9, first screw hole; 10, second screw hole; 11, mounting seat; 12, limiting rod; 13, connecting plate; 14, limiting frame; 15, third bolt; 16, third screw hole; 17, fourth bolt; 18, fourth screw hole; 19, clamping block; 20, clamping groove. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Refer to Figures 1-4 , a precast segment box girder for a bridge, including a support plate 1, a connecting beam 2 is fixedly installed at the bottom of the support plate 1, bases 3 are fixedly installed on both the left and right sides of the bottom of the support plate 1, insertion rods 4 are arranged on the front and rear sides of the bases 3 on the side far from each other, the insertion rods 4 on both the left and right sides penetrate through the bases 3 correspondingly, cross plates 6 are arranged on the corresponding sides of the bases 3, hook bodies 5 are fixedly installed on the sides far from each other of the insertion rods 4 on both the left and right sides, a mounting seat 11 is fixedly installed at the front side of the inner cavity bottom of the connecting beam 2, a connecting plate 13 is arranged on the front side of the mounting seat 11, limiting rods 12 are fixedly installed on both the left and right sides of the rear side of the connecting plate 13, and a limiting frame 14 adapted to the limiting rods 12 is fixedly installed at the rear side of the inner cavity bottom of the connecting beam 2.

[0022] In this embodiment, first bolts 7 are arranged on both the front and rear sides of the corresponding sides of the cross plate 6, the sides far from each other of the first bolts 7 thread through the cross plate 6 and threadedly extend into the inside of the insertion rod 4, first screw holes 9 adapted to the first bolts 7 are opened on one side of the cross plate 6 and one side of the insertion rod 4, third bolts 15 are arranged on both the left and right sides of the top of the limiting frame 14, the bottoms of the third bolts 15 thread through the limiting frame 14 and threadedly extend into the inside of the connecting beam 2, third screw holes 16 adapted to the third bolts 15 are opened on both the left and right sides of the top of the limiting frame 14 and the front sides of the tops of the limiting rods 12. By means of the cross plate 6, the insertion rod 4 can be limited, improving the stability of the insertion rod 4.

[0023] In this embodiment, second bolts 8 are provided on both the front and rear sides of the bottom of the base 3. The top thread of the second bolt 8 extends into the interior of the insertion rod 4. Second screw holes 10 adapted to the second bolts 8 are provided at the bottom of the base 3 and the bottom of the insertion rod 4. The rear side of the limiting rod 12 extends into the interior of the mounting seat 11. Fourth bolts 17 are provided on both the left and right sides of the rear side of the top of the mounting seat 11. The bottom thread of the fourth bolt 17 extends into the interior of the limiting rod 12. Fourth screw holes 18 adapted to the fourth bolts 17 are provided at the four corners of the top of the mounting seat 11 and the rear side of the top of the limiting rod 12. Clamping blocks 19 are fixedly installed on the front sides of the support plate 1 and the connecting beam 2, and clamping grooves 20 adapted to the clamping blocks 19 are fixedly provided on the rear sides of the support plate 1 and the connecting beam 2. Through the mutual cooperation of the clamping blocks 19 and the clamping grooves 20, the device can be quickly aligned, improving the splicing efficiency of the device.

[0024] In this embodiment, during use, by rotating the first bolt 7 in the forward direction to move it away from the insertion rod 4, then removing the cross plate 6, and then rotating the second bolt 8 in the forward direction to move the second bolt 8 away from the insertion rod 4 and removing it, and then moving the insertion rods 4 on the left and right sides away from each other to remove them, the hook body 5 can be disassembled. Through the provided hook body 5, it is convenient for the hoisting mechanism to install it. By butting two identical devices together, the clamping block 19 extends into the interior of the clamping groove 20, and then rotating the third bolt 15 and the fourth bolt 17 in the forward direction and removing them, pulling the connecting plate 13 to move forward, the connecting plate 13 drives the limiting rod 12 to move forward, so that the front side of the connecting plate 13 extends into the interior of the limiting frame 14, and then resetting the third bolt 15, and then rotating the fourth bolt 17 into the fourth screw hole 18 on the front side to position the limiting rod 12, the device can be pre-positioned, avoiding deviation that is likely to occur when the device is butted.

[0025] The above has introduced in detail a precast segment box girder for bridges provided by the present utility model. Specific embodiments are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A prefabricated segmental box girder for a bridge, comprising a support plate (1), characterized in that: A connecting beam (2) is fixedly mounted on the bottom of the support plate (1), a base (3) is fixedly mounted on the left and right sides of the bottom of the support plate (1), an insertion rod (4) is arranged on the front and rear sides of the side away from the base (3), the corresponding sides of the insertion rods (4) on the left and right sides penetrate the base (3), a cross plate (6) is arranged on the corresponding sides of the base (3), a hook body (5) is fixedly mounted on the side away from the insertion rods (4) on the left and right sides, a mounting seat (11) is fixedly mounted on the front side of the bottom of the inner cavity of the connecting beam (2), a connecting plate (13) is arranged on the front side of the mounting seat (11), a limiting rod (12) is fixedly mounted on the left and right sides of the rear side of the connecting plate (13), and a limiting frame (14) adapted to the limiting rod (12) is fixedly mounted on the rear side of the bottom of the inner cavity of the connecting beam (2).

2. The prefabricated segmental box girder of a bridge according to claim 1, characterized in that: The first bolt (7) is provided on both the front and rear sides of the corresponding side of the transverse plate (6), and the side away from the first bolt (7) is threadedly penetrated through the transverse plate (6) and threadedly extended to the inside of the insertion rod (4), and one side of the transverse plate (6) and one side of the insertion rod (4) are both provided with a first screw hole (9) adapted to the first bolt (7).

3. The prefabricated segmental box girder of a bridge according to claim 1, characterized in that: A third bolt (15) is provided on both left and right sides of the top of the limiting frame (14); a bottom thread of the third bolt (15) penetrates the limiting frame (14) and extends into the interior of the connecting beam (2); and a third screw hole (16) adapted to the third bolt (15) is provided on both left and right sides of the top of the limiting frame (14) and the front side of the top of the limiting rod (12).

4. The prefabricated segmental box girder of a bridge according to claim 1, characterized in that: Second bolts (8) are provided on both the front and rear sides of the bottom of the base (3); the top thread of the second bolt (8) extends into the interior of the insertion rod (4); and second screw holes (10) adapted to the second bolts (8) are provided at the bottom of the base (3) and the bottom of the insertion rod (4).

5. The prefabricated segmental box girder of a bridge according to claim 1, characterized in that: The rear side of the limiting rod (12) extends to the interior of the mounting seat (11), and fourth bolts (17) are arranged on both left and right sides of the rear side of the top of the mounting seat (11), and the bottom thread of the fourth bolt (17) extends to the interior of the limiting rod (12), and fourth screw holes (18) adapted to the fourth bolts (17) are provided at the four corners of the top of the mounting seat (11) and the rear side of the top of the limiting rod (12).

6. The prefabricated segmental box girder of a bridge according to claim 1, characterized in that: A clamping block (19) is fixedly mounted on the front side of the support plate (1) and the front side of the connecting beam (2), and a clamping groove (20) adapted to the clamping block (19) is fixedly provided on the rear side of the support plate (1) and the rear side of the connecting beam (2).

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