Displacement monitoring device for track plate pressing lever

Abstract

The utility model discloses a track plate pressure lever displacement monitoring device, which comprises a pressure lever body, an upper mounting seat, a lower mounting seat and a displacement sensor, the pressure lever body is provided with a mounting hole vertically penetrating through the pressure lever body, the upper mounting seat comprises an upper connecting plate and an upper sliding column, and the lower mounting seat comprises a lower connecting plate and a lower sliding column. The upper connecting plate is connected to a mounting hole in the upper surface of the pressing lever body, and the upper sliding column is connected to the bottom of the upper connecting plate. The mounting hole vertically penetrating through the pressure lever body is formed in the pressure lever body, the upper connecting plate is mounted at the top of the mounting hole, and the displacement sensor is mounted on the extension plate, protruding out of the side wall of the track plate, of the lower connecting plate, so that the displacement sensor can measure a base plate; the lower connecting plate is movably installed at the bottom of the upper connecting plate through the upper sliding column and the lower sliding column, the lower connecting plate and the track plate are tightly attached all the time under the action of the elastic force of the spring and are not affected by bending of the pressing lever, and it is ensured that the displacement sensor accurately measures displacement changes of the lower connecting plate and the base plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of track slab pressure bar devices, and particularly relates to a displacement monitoring device for track slab pressure bars. Background Technology

[0002] The self-compacting concrete layer, as a crucial structural component of the CRTSⅢ slab track structure, plays a vital role in connecting the upper and lower sections and transmitting longitudinal, transverse, and vertical loads from the superstructure. Its construction quality determines the success or failure of the CRTSⅢ slab track structure. In existing self-compacting concrete construction techniques, the self-compacting concrete layer is placed between the track slab and the base. During the pouring process, it is necessary to limit and seal the perimeter of the self-compacting concrete filling layer, ensure the expulsion of air from the concrete, and apply downward pressure to the filling layer above the track slab to prevent the track slab from floating or shifting during pouring, or from shifting due to human foot traffic after fine-tuning. Without these measures, the existing construction process can lead to track slab floating and separation between the track slab and the self-compacting concrete layer, posing significant risks to the construction.

[0003] The existing track slab pressure bar is equipped with a displacement sensor to detect the distance of displacement of the track slab under the pressure bar. However, when the pressure bar is subjected to excessive force on the track slab, it will bend and deform, which will cause the displacement value measured by the displacement sensor to be inaccurate, resulting in insufficient clamping force of the pressure bar on the track slab by the construction personnel. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a displacement monitoring device for track plate pressure bars.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A displacement monitoring device for a track slab pressure bar includes a pressure bar body, an upper mounting base, a lower mounting base, and a displacement sensor. The pressure bar body has a vertically penetrating mounting hole. The upper mounting base includes an upper connecting plate and an upper sliding column. The upper connecting plate is connected to the mounting hole on the upper surface of the pressure bar body. The upper sliding column is connected to the bottom of the upper connecting plate and is hollow inside. The lower mounting base includes a lower connecting plate and a lower sliding column. The lower sliding column is movably inserted into the bottom of the upper sliding column and can slide up and down relative to the upper sliding column. A spring is provided inside the upper sliding column. The spring abuts against the top of the upper sliding column and the top of the lower sliding column to press the lower sliding column downward. The lower connecting plate is connected to the bottom of the lower sliding column, and the lower connecting plate extends to one side with an extension plate protruding from the side wall of the track slab. The displacement sensor is connected to the extension plate to measure the displacement between the lower connecting plate and the base plate.

[0007] Preferably, there are two sets of upper sliding column, lower sliding column and spring, which are connected side by side between the upper connecting plate and the lower connecting plate.

[0008] Preferably, a limiting plate is connected between the two upper sliding columns. The limiting plate is provided with a through hole that extends through the upper and lower parts of the limiting plate. A limiting bolt is provided on the limiting plate. The bolt head of the limiting bolt is located above the limiting plate and cannot pass through the through hole. The bolt of the limiting bolt passes downward through the through hole and is threaded onto the lower connecting plate.

[0009] Preferably, the extension plate is provided with a monitoring window that runs vertically through the extension plate, the displacement sensor is connected to the top of the extension plate, and the monitoring end of the displacement sensor is positioned downwards at the monitoring window.

[0010] Preferably, the upper sliding post and the lower sliding post are in a clearance fit.

[0011] Preferably, the gap between the upper sliding column and the lower sliding column is 0.05mm-0.1mm.

[0012] The beneficial effects of this utility model are:

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This invention features a vertically penetrating mounting hole on the pressure bar body, with a connecting plate mounted on top of the mounting hole. A displacement sensor is installed on the extension plate of the lower connecting plate protruding from the side wall of the track plate, enabling the displacement sensor to measure the base plate. The lower connecting plate is movably mounted on the bottom of the upper connecting plate via upper and lower sliding columns, and the lower connecting plate is always tightly fitted to the track plate under the elastic force of the spring, unaffected by the bending of the pressure bar, ensuring that the displacement sensor accurately measures the displacement changes of the lower connecting plate and the base plate. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the present invention;

[0016] Figure 2 This is a diagram showing the usage state of this utility model.

[0017] In the diagram: 1. Pressure bar body; 11. Mounting hole; 2. Upper mounting base; 21. Upper connecting plate; 22. Upper sliding column; 3. Lower mounting base; 31. Lower connecting plate; 311. Extension plate; 312. Monitoring window; 32. Lower sliding column; 4. Displacement sensor; 5. Spring; 6. Limiting plate; 7. Limiting bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-2 As shown, this utility model provides a technical solution: a displacement monitoring device for a track slab pressure bar, including a pressure bar body 1, an upper mounting base 2, a lower mounting base 3, and a displacement sensor 4. The pressure bar body 1 is provided with a vertically penetrating mounting hole 11. The upper mounting base 2 includes an upper connecting plate 21 and an upper sliding column 22. The upper connecting plate 21 is connected to the mounting hole 11 on the upper surface of the pressure bar body 1. The upper sliding column 22 is connected to the bottom of the upper connecting plate 21 and is hollow inside. The lower mounting base 3 includes a lower connecting plate 31 and a sliding column 32. The moving column 32 is movably inserted into the bottom of the upper sliding column 22 and can slide up and down relative to the upper sliding column 22. A spring 5 is provided inside the upper sliding column 22. The spring 5 abuts between the top of the upper sliding column 22 and the top of the lower sliding column 32 to press the lower sliding column 32 downward. The lower connecting plate 31 is connected to the bottom of the lower sliding column 32, and the lower connecting plate 31 extends to one side and is provided with an extension plate 311 protruding from the side wall of the track plate. The displacement sensor 4 is connected to the extension plate 311 to measure the displacement between the lower connecting plate 31 and the base plate.

[0020] like Figure 2 As shown, this utility model provides a vertical mounting hole 11 through the pressure bar body 1, and installs a connecting plate 21 on the top of the mounting hole 11. A displacement sensor 4 is installed on the extension plate 311 protruding from the side wall of the track plate of the lower connecting plate 31, so that the displacement sensor 4 can measure the base plate. The lower connecting plate 31 is movably installed at the bottom of the upper connecting plate 21 by the upper sliding column 22 and the lower sliding column 32. Under the elastic force of the spring 5, the lower connecting plate 31 is always tightly attached to the track plate and is not affected by the bending of the pressure bar, ensuring that the displacement sensor 4 accurately measures the displacement change of the lower connecting plate 31 and the base plate.

[0021] Furthermore, there are two sets of upper sliding column 22, lower sliding column 32 and spring 5, which are connected side by side between upper connecting plate 21 and lower connecting plate 31 to make the connection between upper connecting plate 21 and lower connecting plate 31 stable.

[0022] Furthermore, to prevent the lower mounting base 3 and spring 5 from falling off when the pressure bar is lifted during disassembly, a limiting plate 6 is connected between the two upper sliding columns 22. The limiting plate 6 has through holes extending vertically through it, and a limiting bolt 7 is provided on it. The bolt head of the limiting bolt 7 is located above the limiting plate 6 and cannot pass through the through hole. The screw of the limiting bolt 7 passes downward through the through hole and is threaded onto the lower connecting plate 31. When the pressure bar is lifted, the lower mounting base 3 falls due to the elastic force of the spring 5 and its own weight. The screw of the limiting bolt 7 is connected to the lower connecting plate 31, and the bolt head is located above the limiting plate 6 and cannot pass through the through hole. When the bolt head of the limiting bolt 7 abuts against the surface of the limiting plate 6, it limits the lower mounting base 3, thereby preventing the lower mounting base 3 and spring 5 from falling off.

[0023] Specifically, the extension plate 311 is provided with a monitoring window 312 that runs vertically through the extension plate 311, and the displacement sensor 4 is connected to the top of the extension plate 311, with the monitoring end of the displacement sensor 4 facing downward at the monitoring window 312.

[0024] Furthermore, the upper sliding column 22 and the lower sliding column 32 are in clearance fit to ensure that when the pressure bar deforms, the lower sliding column 32 is not constrained by the upper sliding column 22 and tilts accordingly, so that the lower connecting plate 31 and the track plate are always in close contact.

[0025] Specifically, the gap between the upper sliding post 22 and the lower sliding post 32 is 0.05mm-0.1mm.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A displacement monitoring device for a track slab pressure bar, characterized in that, The device includes a pressure bar body (1), an upper mounting base (2), a lower mounting base (3), and a displacement sensor (4). The pressure bar body (1) has a vertical mounting hole (11) that penetrates the pressure bar body (1). The upper mounting base (2) includes an upper connecting plate (21) and an upper sliding column (22). The upper connecting plate (21) is connected to the mounting hole (11) on the upper surface of the pressure bar body (1). The upper sliding column (22) is connected to the bottom of the upper connecting plate (21) and is hollow inside. The lower mounting base (3) includes a lower connecting plate (31) and a lower sliding column (32). 2) The movable plug is inserted into the bottom of the upper sliding column (22) and can slide up and down relative to the upper sliding column (22). A spring (5) is provided inside the upper sliding column (22). The spring (5) abuts between the top of the upper sliding column (22) and the top of the lower sliding column (32) to press the lower sliding column (32) downward. The lower connecting plate (31) is connected to the bottom of the lower sliding column (32), and the lower connecting plate (31) extends to one side and is provided with an extension plate (311) protruding from the side wall of the track plate. The displacement sensor (4) is connected to the extension plate (311) to measure the displacement between the lower connecting plate (31) and the base plate.

2. The displacement monitoring device for a track slab pressure bar according to claim 1, characterized in that, There are two sets of upper sliding column (22) and lower sliding column (32) and spring (5), which are connected side by side between upper connecting plate (21) and lower connecting plate (31).

3. The displacement monitoring device for a track slab pressure bar according to claim 2, characterized in that, A limiting plate (6) is connected between the two upper sliding columns (22). The limiting plate (6) has a through hole that passes through the limiting plate (6) from top to bottom. A limiting bolt (7) is provided on the limiting plate (6). The bolt head of the limiting bolt (7) is located above the limiting plate (6) and cannot pass through the through hole. The screw of the limiting bolt (7) passes through the through hole downward and is threaded onto the lower connecting plate (31).

4. The displacement monitoring device for a track slab pressure bar according to claim 1, characterized in that, The extension plate (311) is provided with a monitoring window (312) that runs vertically through the extension plate (311). The displacement sensor (4) is connected to the top of the extension plate (311), and the monitoring end of the displacement sensor (4) is set downward at the monitoring window (312).

5. The displacement monitoring device for a track slab pressure bar according to claim 1, characterized in that, The upper sliding column (22) and the lower sliding column (32) are in clearance fit.

6. The displacement monitoring device for a track slab pressure bar according to claim 5, characterized in that, The gap between the upper sliding column (22) and the lower sliding column (32) is 0.05mm-0.1mm.

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