Three-dimensional drawing and inserting type beam end ballast blocking plate

Abstract

The utility model discloses a three-dimensional drawing and inserting type beam end ballast blocking plate. In northern China, the four-season temperature difference and the day and night temperature difference are large, the deflection of a bridge is changed, the gap of a bridge body is increased, and once the effective range of a steel plate is exceeded, ballast leakage occurs. The ballast blocking device comprises a single-layer ballast blocking plate and a double-layer ballast blocking plate, the single-layer ballast blocking plate is fixedly arranged on one side of a beam seam, and the double-layer ballast blocking plate is fixedly arranged on the other side of the beam seam; the single-layer ballast baffle is arranged in a gap in the double-layer ballast baffle, the single-layer ballast baffle and the double-layer ballast baffle are not in contact, and the single-layer ballast baffle and the double-layer ballast baffle are both parallel to the surface of the beam body. The single-layer ballast blocking plate is inserted into the gap of the double-layer plate at the other end, the ballast blocking plate can stretch and deform along with stretching of the beam body, and it is guaranteed that no ballast leaks from the beam seam.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway bridge maintenance, and in particular relates to a three-dimensional plug-and-play beam end ballast retaining plate. Background Art

[0002] Currently, the most common bridge spans on my country's existing conventional railways are simply supported beams and continuous beams. The beam gap between two simply supported beams is generally 5 cm, and the beam gap between a simply supported beam and a continuous beam is 10 cm. When special structures are connected, the beam gap will be further increased. At this time, to ensure that ballast does not leak at the beam end, C25 reinforced concrete ballast retaining plates or single-layer high-strength weathering steel plates are usually installed at the beam end. In northern my country, the temperature difference between the four seasons and the temperature difference between day and night are large. Coupled with the rolling of heavy vehicles, it will have a serious impact on the deformation of the bridge beam body, causing the bridge deflection to change and the gap between the bridge beam body to increase. Once it exceeds the effective range of the steel plate, ballast leakage will occur, which will in turn cause problems such as unevenness of the line, seriously affecting the line geometry and threatening driving safety. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a three-dimensional plug-in beam end ballast retaining plate to solve the ballast leakage problem caused by large deformation of the bridge beam end in areas with large temperature differences.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0005] A three-dimensional plug-in beam end ballast plate, characterized in that it covers the ballast-leaking beam seam;

[0006] It includes a single-layer ballast retaining plate and a double-layer ballast retaining plate, wherein the single-layer ballast retaining plate is fixedly arranged on one side of the beam joint, and the double-layer ballast retaining plate is fixedly arranged on the other side of the beam joint;

[0007] The single-layer ballast retaining plate is arranged in the gap of the double-layer ballast retaining plate. The single-layer ballast retaining plate and the double-layer ballast retaining plate do not contact each other, and both the single-layer ballast retaining plate and the double-layer ballast retaining plate are parallel to the surface of the beam body.

[0008] Furthermore, the single-layer ballast retaining plate includes a single-layer ballast retaining plate body, a single-layer ballast retaining plate limiting base is provided below the single-layer ballast retaining plate body, and the single-layer ballast retaining plate body and the single-layer ballast retaining plate limiting base are fixed to the beam body through the single-layer ballast retaining plate limiting bolts.

[0009] Furthermore, a single-layer ballast retaining plate groove is cut below the single-layer ballast retaining plate body.

[0010] Furthermore, the single-layer ballast retaining plate limiting base includes two, which are symmetrically arranged on both sides of the groove of the single-layer ballast retaining plate.

[0011] Furthermore, the double-layer ballast retaining plate includes a double-layer ballast retaining plate upper plate, a double-layer ballast retaining plate connecting block and a double-layer ballast retaining plate lower plate.

[0012] Furthermore, the upper plate of the double-layer ballast retaining plate, the connecting block of the double-layer ballast retaining plate and the lower plate of the double-layer ballast retaining plate are fixed to the beam body by means of double-layer ballast retaining plate limiting bolts.

[0013] Furthermore, double-layer ballast retaining plate steel bars are welded on both the upper plate and the lower plate of the double-layer ballast retaining plate.

[0014] Beneficial effects of the utility model:

[0015] 1) The single-layer ballast retaining plate of the utility model is inserted into the gap of the double-layer plate at the other end. The ballast retaining plate can expand and contract with the expansion and contraction of the beam body to ensure that ballast does not leak from the beam seam;

[0016] 2) The utility model cuts notches at the bottom of the single-layer plate and welds steel bars on the double-layer plate to increase the compressive strength of the ballast retaining plate and prevent the ballast retaining plate from deforming too much after being compressed, thereby causing poor expansion and contraction.

[0017] 3) The utility model is easy and quick to install, has a stable structure, improves the safety of train travel, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an elevation view of the novel three-dimensional plug-in beam end ballast retaining structure of the utility model;

[0019] Figure 2 This is the elevation drawing of a single-layer ballast retaining plate;

[0020] Figure 3 This is a top view of a single-layer ballast retaining plate;

[0021] Figure 4 This is the elevation drawing of the double-layer ballast retaining plate;

[0022] In the figure: 1—single-layer ballast retaining plate limiting base, 2—single-layer ballast retaining plate body, 3—single-layer ballast retaining plate limiting bolt, 4—double-layer ballast retaining plate upper plate, 5—double-layer ballast retaining plate connecting block, 6—double-layer ballast retaining plate limiting bolt, 7—double-layer ballast retaining plate lower plate, 8—single-layer ballast retaining plate groove, 9—double-layer ballast retaining plate steel bar. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to specific implementation methods.

[0024] like Figure 1 As shown, the utility model covers above the ballast-leaking beam joint, including a single-layer ballast retaining plate and a double-layer ballast retaining plate. The single-layer ballast retaining plate is fixedly arranged on one side of the beam joint, and the double-layer ballast retaining plate is fixedly arranged on the other side of the beam joint; the single-layer ballast retaining plate is arranged in the gap inside the double-layer ballast retaining plate, the single-layer ballast retaining plate and the double-layer ballast retaining plate do not contact each other, and both the single-layer ballast retaining plate and the double-layer ballast retaining plate are parallel to the surface of the beam body.

[0025] like Figure 2 、3 As shown, the single-layer ballast retaining plate includes a single-layer ballast retaining plate body 2, with a single-layer ballast retaining plate limiting base 1 disposed below the single-layer ballast retaining plate body 2. The single-layer ballast retaining plate body 2 and the single-layer ballast retaining plate limiting base 1 are fixed to the beam body via single-layer ballast retaining plate limiting bolts 3. The steel plate thickness is ≤10mm and the width is 70-80cm. A single-layer ballast retaining plate groove 8 is cut below the single-layer ballast retaining plate body 2. The single-layer ballast retaining plate limiting base 1 includes two, symmetrically arranged on either side of the single-layer ballast retaining plate groove 8. The single-layer ballast retaining plate groove 8 increases the ballast retaining plate's compressive resistance and prevents the ballast retaining plate from excessively deforming under pressure, which can lead to poor expansion and contraction.

[0026] like Figure 4 As shown, the double-layer ballast abutment includes an upper plate 4, a connecting block 5, and a lower plate 7. These plates are secured to the beam using stop bolts 6. The gap between the upper and lower plates is 15-20 mm, and the width is 70-80 cm. Double-layer ballast abutment steel bars 9 are welded to both the upper plate 4 and the lower plate 7.

[0027] The installation method of this utility model is as follows:

[0028] First, install the double-layer ballast retaining plate, connect the lower plate of the double-layer ballast retaining plate and the double-layer ballast retaining plate connecting block to the beam body through limiting bolts; then install the single-layer ballast retaining plate, connect and fix the limiting base and the single-layer ballast retaining plate to the beam body through limiting bolts, and finally install the upper plate of the double-layer ballast retaining plate.

[0029] During operation, a single-layer ballast retaining plate is inserted into the gap between the double-side plates at the other end, and moves with the contraction and deformation of the beam body, so that the ballast retaining plate expands and contracts with the expansion and contraction of the beam body, ensuring that no ballast leaks from the beam joints. The above steps are repeated for the installation of the next adjacent ballast retaining plate.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] The content of the present invention is not limited to the embodiments listed. Any equivalent transformation of the technical solution of the present invention made by ordinary technicians in this field after reading the description of the present invention is covered by the claims of the present invention.

Claims

1. A three-dimensional plug-in beam end ballast plate, characterized by: Covering above the leaky ballast beam joint; It includes a single-layer ballast retaining plate and a double-layer ballast retaining plate, wherein the single-layer ballast retaining plate is fixedly arranged on one side of the beam joint, and the double-layer ballast retaining plate is fixedly arranged on the other side of the beam joint; The single-layer ballast retaining plate is arranged in the gap of the double-layer ballast retaining plate. The single-layer ballast retaining plate and the double-layer ballast retaining plate do not contact each other, and both the single-layer ballast retaining plate and the double-layer ballast retaining plate are parallel to the surface of the beam body.

2. The three-dimensional retractable beam end ballast plate according to claim 1, characterized in that: The single-layer ballast retaining plate comprises a single-layer ballast retaining plate body (2), a single-layer ballast retaining plate limiting base (1) is provided below the single-layer ballast retaining plate body (2), and the single-layer ballast retaining plate body (2) and the single-layer ballast retaining plate limiting base (1) are fixed to the beam body via single-layer ballast retaining plate limiting bolts (3).

3. The three-dimensional retractable beam end ballast plate according to claim 2, characterized in that: A single-layer ballast retaining plate groove (8) is cut below the single-layer ballast retaining plate body (2).

4. The three-dimensional retractable beam end ballast plate according to claim 3, characterized in that: The single-layer ballast retaining plate limiting base (1) comprises two, which are symmetrically arranged on both sides of the single-layer ballast retaining plate groove (8).

5. The three-dimensional retractable beam end ballast plate according to claim 4, characterized in that: The double-layer ballast retaining plate comprises a double-layer ballast retaining plate upper plate (4), a double-layer ballast retaining plate connecting block (5) and a double-layer ballast retaining plate lower plate (7).

6. The three-dimensional retractable beam end ballast plate according to claim 5, characterized in that: The double-layer ballast retaining plate upper plate (4), the double-layer ballast retaining plate connecting block (5) and the double-layer ballast retaining plate lower plate (7) are fixed on the beam body via double-layer ballast retaining plate limiting bolts (6).

7. The three-dimensional retractable beam end ballast plate according to claim 6, characterized in that: Double-layer ballast retaining plate steel bars (9) are welded to both the upper plate (4) and the lower plate (7) of the double-layer ballast retaining plate.

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