Box girder transportation fixing device

Abstract

A box girder transportation fixing device comprises a bottom plate, a containing groove is formed in the middle of the bottom plate, fixing plates are symmetrically arranged on the two sides of the containing groove, springs are arranged on the bottom face of the inner side of the containing groove, the containing plate is arranged in the containing groove, a screw penetrates through the fixing plates and is in threaded connection with the fixing plates, one end of the screw is fixedly connected with a rotary disc, and the other end of the screw is fixedly connected with an extrusion block. A box girder is placed on the placing plate, springs are extruded under the influence of the weight of the box girder, so that the placing plate sinks, the box girder is limited through the placing groove, then the rotary table is rotated to drive the extrusion block to perform displacement motion to act on the surface of the box girder, and the two sides of the box girder are limited and fixed, so that the effects of improving the working efficiency and reducing the labor intensity are achieved. And the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of material transportation technology, and in particular to a box girder transportation fixing device. Background Technology

[0002] Box girders are a type of beam used in bridge engineering. They are hollow inside with flanges on both sides of the upper part, resembling a box, hence the name. They are divided into single-box and multi-box types. Reinforced concrete box girders are divided into precast box girders and cast-in-place box girders. Box girders precast on an independent site can be erected after the lower structure is completed using a bridge erecting machine, which can accelerate the project progress and save construction time. Cast-in-place box girders are mostly used in large continuous bridges. They are commonly classified by material, mainly into two types: prestressed reinforced concrete box girders and steel box girders.

[0003] In existing technologies, anti-tipping frames are typically used to support and fix the box girder surface. However, due to the large size of the box girder itself, the operation is cumbersome and complicated, which can easily waste time and reduce work efficiency.

[0004] During the transportation of box girders, uneven road surfaces may cause the transport vehicles to bump and jolt. The anti-tipping frames used in the existing technology directly support the surface of the box girder, which can easily damage the surface of the box girder and thus affect the product quality of the box girder. Utility Model Content

[0005] This utility model provides a box girder transportation and fixing device, which solves the technical problem in the prior art that the box girder surface is damaged due to the direct use of anti-tipping frames on the box girder surface.

[0006] To solve the above problems, this utility model provides a box girder transportation fixing device, including a base plate, characterized in that: a placement groove is provided in the middle of the base plate, fixing plates are symmetrically provided on both sides of the placement groove on the surface of the base plate, a spring is provided on the inner bottom surface, the placement plate is placed in the placement groove and fixedly connected to the spring, a screw passes through the fixing plate and is threadedly connected to each other, a turntable is fixedly connected to one end of the screw, and a pressing block is fixedly connected to the other end.

[0007] Furthermore, four sets of fixing plates are symmetrically arranged on both sides of the placement slot.

[0008] Furthermore, the height of the spring is less than the height of the placement slot.

[0009] Furthermore, the surface of the placement plate and the surface of the base plate are on the same horizontal line.

[0010] Furthermore, 21 springs are provided on the bottom surface of the inner side of the placement groove.

[0011] Furthermore, a screw is provided on the fixing plate.

[0012] The beneficial effects of this utility model are as follows: This application places the box girder on the placement plate, and the weight of the box girder compresses the spring, causing the placement plate to sink. The placement groove limits the position of the box girder. At the same time, the tension generated by the spring can provide shock absorption for the box girder during transportation. Then, the rotating turntable drives the extrusion block to move and act on the surface of the box girder, limiting and fixing it on both sides. Since the extrusion block can prevent the screw from directly contacting the surface of the box girder, it can prevent damage to the surface of the box girder, thereby achieving the technical effect of improving work efficiency and ensuring product quality. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram according to an embodiment of the present utility model;

[0014] Figure 2 This is a top view of the structure according to an embodiment of the present utility model;

[0015] Figure 3 This is a side view structural diagram according to an embodiment of the present utility model;

[0016] Figure 4 This is a cross-sectional structural diagram according to an embodiment of the present utility model.

[0017] Reference numerals: base plate 1, fixing plate 2, placement groove 11, spring 12, placement plate 13, screw 21, turntable 22, extrusion block 23. Detailed Implementation

[0018] To make the technical solution of this utility model clearer, the present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-4 As shown, a box girder transport fixing device according to an embodiment of the present utility model includes a base plate 1, a placement groove 11 in the middle of the base plate 1, fixing plates 2 symmetrically arranged on both sides of the placement groove 11 on the surface of the base plate 1, a spring 12 on the inner bottom surface, a placement plate 13 disposed in the placement groove 11 and fixedly connected to the spring 12, a screw 21 passing through the fixing plate 2 and threadedly connected to each other, a turntable 22 fixedly connected at one end of the screw, and a pressing block 23 fixedly connected at the other end.

[0020] The placement slot 11 has four sets of fixing plates 2 symmetrically arranged on both sides.

[0021] The height of the spring 12 is less than the height of the placement groove 11.

[0022] The surface of the placement plate 13 is on the same horizontal line as the surface of the base plate 1.

[0023] The inner bottom surface of the placement groove 11 is provided with 21 springs 12.

[0024] The fixing plate 2 is provided with a screw.

[0025] Working principle: First, the box girder is lifted and placed on the placement plate 13. When the box girder is placed on the placement plate 13, the weight of the box girder compresses the spring 12, causing the placement plate 13 to sink. The placement groove 11 limits the position of the box girder. Then, the turntable 22 drives the screw 21 to rotate, causing the extrusion block 23 to move at a constant speed and act on the surface of the box girder, limiting and fixing its two sides. Since the extrusion block 23 is made of rubber, it can prevent damage to the surface of the box girder.

[0026] The above embodiments can be combined with each other for further implementation if they are not mutually exclusive.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A box girder transport fixing device, comprising a base plate (1), characterized in that: The base plate (1) has a placement groove (11) in the middle. Fixing plates (2) are symmetrically arranged on both sides of the placement groove (11) on the surface of the base plate (1). A spring (12) is provided on the inner bottom surface. The placement plate (13) is placed in the placement groove (11) and is fixedly connected to the spring (12). The screw (21) passes through the fixing plate (2) and is threaded to each other. A turntable (22) is fixedly connected to one end of the screw, and an extrusion block (23) is fixedly connected to the other end.

2. The box girder transport fixing device according to claim 1, characterized in that: Four sets of fixing plates (2) are symmetrically arranged on both sides of the placement slot (11).

3. The box girder transport fixing device according to claim 1, characterized in that: The height of the spring (12) is less than the height of the placement groove (11).

4. The box girder transport fixing device according to claim 1, characterized in that: The surface of the placement plate (13) is on the same horizontal line as the surface of the base plate (1).

5. The box girder transport fixing device according to claim 1, characterized in that: The bottom inner side of the placement slot (11) is provided with 21 springs (12).

6. The box girder transport fixing device according to claim 1, characterized in that: The fixing plate (2) is provided with a screw.

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