Rail plate nondestructive counterpressure limiting device

Abstract

The utility model discloses a track board nondestructive counterpressure limiting device, including first counterpressure limiting board and second counterpressure limiting board, first counterpressure limiting board includes first vertical lateral wall and first horizontal lateral wall, and the upper surface of track board is butt joint to first horizontal lateral wall, and the side of track board is butt joint to first vertical lateral wall, second counterpressure limiting board sets up at the corner of track board and support layer, butt joint first vertical lateral wall, and are connected fixed with support layer through connecting piece, still including setting up on track board's counterpull screw subassembly, two ends are connected second counterpressure limiting board respectively, this device can effectively in the upper surface and both sides of track board synchronous exert counterpressure, and the track board is positioned, avoids the excessive floating movement or lateral swing of track board when carrying out the construction below track board, and also need not punch the hole on track board, will not destroy the complete structure of track board originally.

Description

Technical Field

[0001] This utility model relates to the field of track construction technology, specifically to a non-destructive counter-pressure limiting device for track slabs. Background Technology

[0002] During the treatment of railway defects and the maintenance of track slabs, track slabs will undergo displacement in all directions. If the displacement deviation is large, it will affect the restoration of the subsequent line. Therefore, limit devices will be set up during the construction process to limit the track slabs to prevent large deviations or shaking.

[0003] The most commonly used limiting devices are counter-pressure plates or limiting plates on both sides of the track slab. However, fixing these counter-pressure plates or limiting plates requires drilling many holes in the track slab and the supporting layer to connect steel bars or bolts. Although this construction method can play a limiting role, it leaves many holes in the track slab and the supporting layer after construction. In particular, some holes in the track slab can damage the structure of the track slab and reduce its service life. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a non-destructive counter-pressure limiting device for track slabs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A non-destructive backpressure limiting device for a track slab includes a first backpressure limiting plate and a second backpressure limiting plate disposed on both sides of the track slab. The first backpressure limiting plate has an L-shaped structure and includes a first vertical sidewall and a first horizontal sidewall. The first backpressure limiting plate is fastened to the corner edge of the track slab so that the first horizontal sidewall abuts against the upper surface of the track slab and the first vertical sidewall abuts against the side surface of the track slab. The second backpressure limiting plate also has an L-shaped structure and is disposed at the corner between the track slab and the support layer, abutting against the first vertical sidewall and being connected and fixed to the support layer by a connector.

[0007] It also includes a tie rod assembly mounted on the track plate, which passes under the rail and is connected at both ends to the second counter-pressure limiting plates located on both sides.

[0008] This non-destructive counter-pressure limiting device for track slabs, through the arrangement of the first counter-pressure limiting plate, the second counter-pressure limiting plate, and the tie rod assembly, can effectively apply counter-pressure simultaneously to the upper surface and both sides of the track slab to limit the track slab, preventing excessive upward movement or lateral swaying of the track slab when construction is carried out below it. It can effectively prevent track slab displacement and deformation. Moreover, the entire device has a simple structure, is easy to install and use, and does not require drilling holes in the track slab, thus not damaging the original integrity of the track slab.

[0009] The first counter-pressure limiting plate is positioned at the corner of the track slab. Clamped by the second counter-pressure limiting plate, it utilizes its first horizontal sidewall to vertically limit the track slab, achieving vertical counter-pressure. It also connects its first vertical sidewall to the second counter-pressure limiting plate, transferring force. Furthermore, the horizontal and vertical sidewalls form a corner protection structure, preventing these limiting devices from bumping into the edge of the track slab and causing damage. Through this arrangement, the first and second counter-pressure limiting plates can apply pressure from three sides at this location, achieving both clamping and limiting functions.

[0010] Furthermore, the second counter-pressure limiting plate includes a second vertical sidewall and a second horizontal sidewall. The second vertical sidewall abuts against the first vertical sidewall. The second vertical sidewall is longer than the first vertical sidewall and is connected to the tie rod assembly at its higher position. Several pads are provided between the second horizontal sidewall and the support layer. The connecting piece is connected to the corner of the second horizontal sidewall or the second counter-pressure limiting plate.

[0011] In some embodiments, the connector is a plurality of long bolts connected to the second horizontal sidewall, the long bolts being connected to the support layer, and the long bolts also having a plurality of washers and lock nuts.

[0012] In some embodiments, the second vertical sidewall and the second horizontal sidewall are provided with 45-degree inclined walls at the corners, and the connector is a long anchor rod connected to the center of the inclined wall, the long anchor rod being inclinedly connected to the support layer.

[0013] Furthermore, the pull screw assembly includes a pull screw with external threads at both ends and a smooth rod in the middle. The two ends of the pull screw pass through the second counter-pressure limiting plate and are fastened by several washers and locking nuts.

[0014] Furthermore, the second counter-pressure limiting plate is provided with a vertical oval elongated hole, which connects to the pull screw assembly and can connect the pull screw at multiple vertical positions.

[0015] Furthermore, a connecting buckle is provided above the first horizontal sidewall, which connects to the pull screw assembly and can further connect to the pull screw.

[0016] Furthermore, the second counter-pressure limiting plate is provided with a limiting shallow groove on the side facing the first vertical sidewall, the first vertical sidewall is connected to the limiting shallow groove, and the limiting shallow groove is also provided with a limiting member connecting the first vertical sidewall.

[0017] Furthermore, multiple sets of the first counter-pressure limiting plate, the second counter-pressure limiting plate, and the tie rod assembly are arranged at intervals along the length of the track plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. This non-destructive counter-pressure limiting device for track slabs, through the arrangement of the first counter-pressure limiting plate, the second counter-pressure limiting plate, and the tie rod assembly, can effectively apply counter-pressure simultaneously to the upper surface and both sides of the track slab, limiting the track slab and preventing excessive upward movement or shaking of the track slab during construction below it. It can effectively prevent track slab displacement and deformation. Moreover, the entire device has a simple structure, is easy to install and use, and does not require drilling holes in the track slab, thus not damaging the original integrity of the track slab; 2. The second counter-pressure limiting plate, on the one hand, avoids the need for connecting parts to the track slab, thus preventing drilling and damage to the track slab structure; on the other hand, it can form stable lateral limiting on both sides of the track slab, restricting the horizontal displacement of the track slab; and the tie rod assembly can be used to connect the two sides of the second counter-pressure limiting plate. The limiting plates are connected together to form a clamping structure, further improving the limiting effect and connection stability; 3. The first counter-pressure limiting plate is set at the edge corner of the track plate. Under the clamping of the second counter-pressure limiting plate, it can not only use its first horizontal sidewall to form a vertical limiting on the track plate to achieve the purpose of vertical counter-pressure, but also use its first vertical sidewall to connect with the second counter-pressure limiting plate to form a force transmission. Moreover, the horizontal sidewall and the vertical sidewall can form a corner protection structure to prevent these limiting devices from hitting the edge of the track plate and causing damage. At the same time, the setting of the first horizontal sidewall can also support the tie rod assembly to prevent the threads on the tie rod from directly pressing against the track plate and causing unnecessary wear; 4. A connecting buckle and an arc-shaped shallow groove are set on the first limiting counter-pressure plate to better connect the tie rod and allow the tie rod to provide downward pressure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the non-destructive counter-pressure limiting device of this utility model installed on the track plate;

[0020] Figure 2 This is a partial top view of the non-destructive back pressure limiting device of this utility model installed on the track plate;

[0021] Figure 3 This is a schematic diagram of the back structure of the second vertical sidewall in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of another connection structure for the non-destructive counter-pressure limiting device of this utility model installed on the track plate;

[0023] Figure 5 This is a schematic diagram of the connection between the first horizontal sidewall and the tie rod in Embodiment 2 of this utility model;

[0024] Figure 6 for Figure 5 A schematic diagram of a partial cross-sectional structure showing the connection between the first horizontal sidewall and the tie rod;

[0025] In the diagram: 1. Track slab; 2. Mortar layer; 3. Support layer; 4. First counter-pressure limiting plate; 401. First vertical sidewall; 402. First horizontal sidewall; 5. Second counter-pressure limiting plate; 501. Second vertical sidewall; 502. Second horizontal sidewall; 503. Inclined wall; 6. Tie rod; 7. Pad; 8. Long bolt; 9. Oval elongated hole; 10. Limiting shallow groove; 11. Long anchor rod; 12. Connecting buckle; 13. Arc-shaped shallow groove. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0028] like Figure 1 and Figure 2As shown, a non-destructive backpressure limiting device for a track slab includes a first backpressure limiting plate 4 and a second backpressure limiting plate 5 disposed on both sides of a track slab 1. The first backpressure limiting plate 4 has an L-shaped structure and includes a first vertical sidewall 401 and a first horizontal sidewall 402. The first backpressure limiting plate 4 is fastened to the corner edge of the track slab 1 so that the first horizontal sidewall 402 abuts against the upper surface of the track slab 1 and the first vertical sidewall 401 abuts against the side surface of the track slab 1. The second backpressure limiting plate 5 also has an L-shaped structure. The second backpressure limiting plate 5 is disposed at the corner between the track slab 1 and the support layer 3, abuts against the first vertical sidewall 401, and is connected and fixed to the support layer 3 by a connector.

[0029] The device also includes a tie rod assembly mounted on the track plate 1, which passes under the rail and is connected at both ends to the second counter-pressure limiting plates 5 located on both sides.

[0030] This non-destructive counter-pressure limiting device for track slabs, through the arrangement of the first counter-pressure limiting plate 4, the second counter-pressure limiting plate 5, and the tie rod assembly, can effectively apply counter-pressure synchronously to the upper surface and both sides of the track slab to limit the track slab, preventing the track slab from excessively floating or shaking during construction below the track slab (such as grouting construction). It can effectively prevent track slab displacement and deformation. Moreover, the entire device has a simple structure, is easy to install and use, and does not require drilling holes in the track slab, thus not damaging the original integrity of the track slab.

[0031] The second counter-pressure limiting plate 5 is connected and fixed to the lower support layer 3 through a connector. On the one hand, it can avoid setting a connector with the track plate to avoid drilling and damaging the structure of the track plate. On the other hand, it can form a stable side limit on both sides of the track plate, restricting the horizontal movement of the track plate. Moreover, the pull screw can be used to connect the pair of second counter-pressure limiting plates on both sides together to form a clamping structure, further improving the limiting effect and the stability of the connection.

[0032] In addition to connecting the second counter-pressure limiting plates on both sides, the tie rod assembly can also form a limit above the track plate, providing a certain vertical counter-pressure to prevent the track plate from floating and vertical displacement.

[0033] The first counter-pressure limiting plate 4 is located at the corner of the edge of the track plate 1. Clamped by the second counter-pressure limiting plate 5, it can both vertically limit the track plate using its first horizontal sidewall 402 to achieve vertical counter-pressure, and connect with the second counter-pressure limiting plate 5 using its first vertical sidewall 401 to transfer force. Furthermore, the horizontal and vertical sidewalls form a corner protection structure, preventing these limiting devices from bumping into the edge of the track plate and causing damage. Simultaneously, the first horizontal sidewall 402 also supports the tie rod assembly, preventing the threads on the tie rod from directly pressing against the track plate and causing unnecessary wear. It also allows for fine-tuning of the support height of the tie rod assembly, ensuring it neither directly contacts the track plate nor passes under the rail.

[0034] The combined use of the first counter-pressure limiting plate 4 and the second counter-pressure limiting plate 5 can also increase its adaptability, allowing it to be adapted to track plates of different heights for counter-pressure operation.

[0035] In use, this non-destructive backpressure limiting device for the track slab can be configured by drilling connection holes in the support layer according to the pre-designed backpressure position. Then, a pair of first backpressure limiting plates 4 are fastened to the edges on both sides of the track slab 1. Next, the second backpressure limiting plate 5 is placed on the support layer 3. The second backpressure limiting plate 5 is adjusted to be close to and tightly against the first backpressure limiting plate 4. After aligning the connection holes, the connecting piece is connected for pre-connection. After pre-connection, the tie rod assembly is connected. After fine-tuning the positions, the connecting piece and tie rod assembly are locked. Through this arrangement, the first backpressure limiting plate 4 and the second backpressure limiting plate 5 can form a three-sided pressure state at this location, achieving the purpose of fastening and limiting.

[0036] In this embodiment, the second counter-pressure limiting plate 5 includes a second vertical sidewall 501 and a second horizontal sidewall 502. The second vertical sidewall 501 abuts against the first vertical sidewall 401. The second vertical sidewall 501 is longer than the first vertical sidewall 401 and is connected to the tie rod assembly at its higher position. A plurality of pads 7 are provided between the second horizontal sidewall 502 and the support layer 3. The second horizontal sidewall 502 is connected to the connector.

[0037] The pad 7 can appropriately adjust the height of the second horizontal sidewall and also adjust its level to ensure that the second horizontal sidewall is arranged horizontally; the second vertical sidewall can be used to connect the first vertical sidewall and the tie rod assembly.

[0038] The connector consists of multiple long bolts 8 connected to the second horizontal sidewall 502. The long bolts 8 are connected to the support layer 3, and each long bolt 8 is also provided with several washers and locking nuts. The long bolts 8, washers, and locking nuts allow the second counter-pressure limiting plate 5 to be easily fixed to the support layer 3, enabling the vertical sidewall to perform its limiting function.

[0039] Furthermore, the pull screw assembly includes a pull screw 6, which has external threads at both ends and a smooth rod in the middle. The two ends of the pull screw 6 pass through the second counter-pressure limiting plate 5 and are fastened by several washers and locking nuts.

[0040] The track slab 1 has a certain width, which makes the tie rod 6 relatively long. If the entire tie rod 6 is provided with external threads, it would increase the workload and cost of tapping. Therefore, the external threads are only provided at both ends to facilitate the connection of the locking nuts to form a tie structure. The middle smooth rod part is also convenient to pass under the rail. The rail is usually supported and installed on the track slab by sleepers. Therefore, there is a gap (10-20cm) between the rail and the upper surface of the track slab. This allows the tie rod 6 to pass through the rail and connect with the second vertical sidewalls 501 on both sides.

[0041] Furthermore, in combination Figure 3 As shown, the second counter-pressure limiting plate 5 is provided with a vertical oval elongated hole 9, which connects to the tie rod assembly. Since the height of the track plate varies slightly in different locations (the vertical height between the upper surface of the track plate and the upper surface of the support layer), the oval elongated hole 9 allows the tie rod 6 to be connected at different heights, improving the adaptability of the entire device.

[0042] Furthermore, the vertical sidewall of the second counter-pressure limiting plate 5 facing the first vertical sidewall 401 is also provided with a limiting shallow groove 10, the first vertical sidewall 401 is connected to the limiting shallow groove 10, and the limiting shallow groove 10 is also provided with a limiting member connecting the first vertical sidewall 401.

[0043] The limiting groove 10 can form a limit in the width direction of the plate, preventing relative sliding between the second counter-pressure limiting plate 5 and the first counter-pressure limiting plate 4. The limiting component can be a screw to connect the two.

[0044] In some embodiments, for a thicker second vertical sidewall 501, the depth of the limiting shallow groove 10 can be greater, and the vertical dimension of the limiting shallow groove 10 is larger than the vertical dimension of the first vertical sidewall 401, so that the first vertical sidewall 401 can be appropriately adjusted in the height direction to accommodate track plates with different heights. In this case, a replaceable limiting element, such as a small support pin, can be provided at the bottom of the limiting shallow groove 10 to support and fix the first vertical sidewall 401.

[0045] Furthermore, multiple sets of the first counter-pressure limiting plate 4, the second counter-pressure limiting plate 5, and the tie rod assembly are arranged at intervals along the length of the track slab 1. This arrangement can effectively limit the counter-pressure of the entire track slab within a certain area. Example 2

[0046] This embodiment provides another structure for the connector.

[0047] Combination Figure 4 As shown, the second counter-pressure limiting plate 5 includes a second vertical sidewall 501 and a second horizontal sidewall 502. The second vertical sidewall 501 and the second horizontal sidewall 502 are provided with a 45-degree inclined wall 503 at the corner. The connecting member is a long anchor rod 11 connected to the center of the inclined wall 503. The long anchor rod 11 is inclinedly connected to the support layer 3.

[0048] The inclined wall 503 and the long anchor rod 11 are set at the corner. The second counter-pressure limiting plate 5 can be connected and fixed simply by the long anchor rod 11 being inclinedly inserted into the support layer 3. There is no need to open holes on the track plate to connect fasteners. At the same time, horizontal and vertical components of force can be formed, which further enhances the force of its lateral counter-pressure limiting. Example 3

[0049] This embodiment provides another structure for the counter-pressure limiting plate.

[0050] Specifically, such as Figure 5 and Figure 6 As shown, a connecting buckle 12 is provided above the first horizontal sidewall 402, and the connecting buckle 12 connects to the pull rod assembly. The connecting buckle 12 is arc-shaped, and is upside down on the pull rod 6 and is connected and fixed to the connecting protrusion on the first horizontal sidewall 402 by a nut. This can further effectively connect the pull rod 6, prevent the pull rod from shaking, and also allow the pull rod 6 to provide a more stable downward pressure to the first horizontal sidewall.

[0051] Furthermore, the upper surface of the first horizontal sidewall 402 is also provided with an arc-shaped shallow groove 13, and the pull rod 6 is supported at the arc-shaped shallow groove 13. This not only allows for simple positioning of the pull rod 6 when it is set, but also increases the contact area between the pull rod 6 and the first horizontal sidewall 402, which is beneficial for the transmission of force.

[0052] 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 non-destructive back pressure limiting device for track slabs, characterized in that, The system includes a first counter-pressure limiting plate and a second counter-pressure limiting plate disposed on both sides of the track slab. The first counter-pressure limiting plate has an L-shaped structure and includes a first vertical sidewall and a first horizontal sidewall. The first counter-pressure limiting plate is fastened to the corner edge of the track slab so that the first horizontal sidewall abuts against the upper surface of the track slab and the first vertical sidewall abuts against the side surface of the track slab. The second counter-pressure limiting plate also has an L-shaped structure and is disposed at the corner between the track slab and the support layer. It abuts against the first vertical sidewall and is connected and fixed to the support layer by a connector. It also includes a tie rod assembly mounted on the track plate, which passes under the rail and is connected at both ends to the second counter-pressure limiting plates located on both sides.

2. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, The second counter-pressure limiting plate includes a second vertical sidewall and a second horizontal sidewall. The second vertical sidewall abuts against the first vertical sidewall. The second vertical sidewall is longer than the first vertical sidewall and is connected to the tie rod assembly at its higher position. A plurality of pads are provided between the second horizontal sidewall and the support layer. The connecting piece is connected to the corner of the second horizontal sidewall or the second counter-pressure limiting plate.

3. The track slab non-destructive counter-pressure limiting device according to claim 2, characterized in that, The connector is a plurality of long bolts connected to the second horizontal sidewall. The long bolts are connected to the support layer and are also provided with a plurality of washers and lock nuts.

4. The track slab non-destructive counter-pressure limiting device according to claim 2, characterized in that, The second vertical sidewall and the second horizontal sidewall are provided with 45-degree inclined walls at the corners, and the connecting member is a long anchor rod connected to the center of the inclined wall, and the long anchor rod is inclinedly connected to the support layer.

5. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, The pull screw assembly includes a pull screw with external threads at both ends and a smooth rod in the middle. The two ends of the pull screw pass through the second counter-pressure limiting plate and are fastened by several washers and locking nuts.

6. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, The second counter-pressure limiting plate is provided with a vertical oval elongated hole, which is connected to the pull screw assembly.

7. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, A connecting buckle is provided above the first horizontal sidewall, and the connecting buckle is connected to the pull screw assembly.

8. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, The second counter-pressure limiting plate is also provided with a limiting shallow groove on the side facing the first vertical sidewall. The first vertical sidewall is connected to the limiting shallow groove, and the limiting shallow groove is also provided with a limiting member connecting the first vertical sidewall.

9. The track slab non-destructive counter-pressure limiting device according to claim 1, characterized in that, Multiple sets of the first counter-pressure limiting plate, the second counter-pressure limiting plate, and the tie rod assembly are arranged at intervals along the length of the track plate.

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