A construction structure for ballastless track and a sleeper adjustment device

Abstract

This utility model discloses a construction structure and sleeper adjustment device for ballastless track, belonging to the field of ballastless track technology. The construction structure for ballastless track includes rails fixedly connected to sleepers via clips. Connecting plates are fixedly connected to both sides of the sleepers, which are then fixedly connected to upper and lower reinforcing bars. The sleeper adjustment device includes adjusting components movably installed on both sides of the sleepers. When in use, this ballastless track forms a triangular structure through positioning bolts and auxiliary bolts, creating three support points on the ground. This improves the stability of the sleepers, making them less prone to loosening or displacement due to vibration, swaying, or other external factors. When the sleeper tilts, the connecting components, positioning bolts, and side sliding tubes tilt synchronously, causing misalignment between the calibration mark and the balance mark. This facilitates the judgment and timely correction of minor tilting or swaying of the sleepers.

Description

Technical Field

[0001] This utility model relates to the field of ballastless track technology, and more specifically, to a construction structure for ballastless track and a sleeper adjustment device. Background Technology

[0002] Ballastless track, as a new type of track structure, differs from traditional ballasted track based on crushed stone ballast. It uses rigid or semi-rigid materials such as concrete and asphalt mixture to replace the crushed stone ballast and directly support the rails. It has significant advantages such as high stability, low maintenance cost, and strong durability, and is widely used in modern high-speed railways, urban rail transit and other fields.

[0003] Chinese patent application CN211872417U discloses a construction structure and sleeper adjustment device for ballastless track. The construction structure mainly consists of sleepers, rails installed on top of the sleepers, and a sleeper adjustment device. The sleeper adjustment device includes a side plate, a sleeve, and a screw. The side plate is fixed to the end of the sleeper, the sleeve is fixed to the side plate, and the screw is threaded into the sleeve with its lower end abutting against the ground. By rotating the screw, the sleeve can be driven to move up and down, thereby adjusting the rail height. This technical solution effectively alleviates the problem in the prior art where the rail height adjustment structure needs to be dismantled after adjustment, resulting in a large amount of construction work. However, in actual use, it has been found that due to the limited number of screws connected to the side plates, the overall stability is poor. When the rails encounter vibration or shaking, they are prone to swaying and tilting, which can lead to displacement and loosening of the rails and sleepers. Moreover, the slight tilting of the sleepers is not easily detected, and workers cannot correct it in time. Based on the above problems, this application proposes a construction structure for ballastless track and a sleeper adjustment device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a construction structure for ballastless track and a sleeper adjustment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A construction structure for ballastless track includes rails, which are fixedly connected to sleepers by clips. Connecting plates are fixedly connected to both sides of the sleepers, and the sleepers are fixedly connected to upper and lower reinforcing bars.

[0007] By adopting the above technical solution, the strength of the sleepers is enhanced through upper and lower layer steel bars.

[0008] Preferably, the upper layer of reinforcing bars is located at the upper part of the sleeper, and both ends of the upper layer of reinforcing bars are fixedly connected to the connecting plates on both sides of the sleeper.

[0009] Preferably, the lower layer of reinforcing bars is located at the lower part of the sleeper, and both ends of the lower layer of reinforcing bars are fixedly connected to the connecting plates on both sides of the sleeper.

[0010] Preferably, the sleeper is made of concrete, and the upper and lower reinforcing bars are encased in concrete.

[0011] By adopting the above technical solution, the number of upper-layer steel bars is less than the number of lower-layer steel bars, and the minimum number of upper-layer steel bars is two.

[0012] A sleeper adjustment device for ballastless track, applied to the construction structure of the aforementioned ballastless track, includes adjustment components movably installed on both sides of the sleeper, the adjustment components comprising connectors, side sliding sleeves, positioning bolts, auxiliary bolts, and balance marks;

[0013] The connector is fixedly connected to the lower position of the connecting plate, the positioning bolt is threadedly connected to the connector, the auxiliary bolt is movably connected to both sides of the connector, the side sliding sleeve is fixedly connected to both sides of the connector, and the auxiliary bolt is slidably connected inside the side sliding sleeve, and the balance mark is rotatably connected to the front position of the positioning bolt.

[0014] By adopting the above technical solution, the positioning bolt and the auxiliary bolt form a triangular structure, which improves stability and makes the sleeper more stable.

[0015] Meanwhile, a balance mark is movably installed on the side of the positioning bolt. When the balance mark is stationary, both sides are horizontal. When the sleeper tilts, the calibration mark and the balance mark are misaligned, thus alerting the staff.

[0016] Preferably, the adjustment assembly further includes a positioning screw tube and a first bearing. The positioning screw tube is fixedly connected to the middle position of the connector, the positioning bolt is threadedly connected to the positioning screw tube, and the first bearing is movably connected to the upper position of the positioning bolt.

[0017] By adopting the above technical solution, the positioning bolt rotates inside the positioning screw tube, thereby adjusting the height.

[0018] Preferably, the adjustment assembly further includes a connecting rod and an auxiliary screw tube. The connecting rod is fixedly connected to the outer side of the first bearing, the auxiliary screw tube is fixedly connected to the outer end of the connecting rod, and the auxiliary bolt is threaded into the auxiliary screw tube.

[0019] By adopting the above technical solution, the positioning bolt can drive the auxiliary bolt to adjust its height synchronously.

[0020] Preferably, the adjustment assembly further includes a calibration mark, a mounting rod, and a second bearing. The calibration mark is fixedly connected to the outer side of the first bearing, the mounting rod is fixedly connected to the calibration mark, and the balance mark is rotatably connected to the calibration mark via the second bearing.

[0021] By adopting the above technical solution, when the sleeper is in a horizontal position, the calibration mark and the balance mark are aligned; when the sleeper is tilted, the calibration mark and the balance mark are misaligned.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1) When this ballastless track is in use, a triangular structure is formed by positioning bolts and auxiliary bolts, creating three support points on the ground, which makes the sleepers more stable and less prone to loosening or displacement due to external causes such as vibration and shaking.

[0024] 2) When this ballastless track is in use, if the sleeper tilts, the connecting parts, positioning bolts, side sliding tubes and other structures will tilt synchronously, causing the calibration mark and balance mark to be misaligned, making it easier to judge and correct small tilts and swaying of the sleeper in a timely manner. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the rail and sleeper of this utility model;

[0027] Figure 3 This is a schematic diagram showing the disassembled structure of the sleeper, upper reinforcing bars, and lower reinforcing bars of this utility model;

[0028] Figure 4 This is a schematic diagram of the positioning bolt, auxiliary bolt, and connecting parts of this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] The following are the labels in the diagram: 1. Rail; 2. Sleeper; 3. Clip; 4. Connecting plate; 5. Upper reinforcing bar; 6. Lower reinforcing bar; 7. Adjustment assembly; 701. Connecting piece; 702. Positioning screw; 703. Side sliding sleeve; 704. Positioning bolt; 705. Bearing No. 1; 706. Connecting rod; 707. Auxiliary screw; 708. Auxiliary bolt; 709. Calibration mark; 710. Mounting rod; 711. Bearing No. 2; 712. Balance mark. Detailed Implementation

[0031] Example 1, please refer to Figures 1 to 3A construction structure for ballastless track includes rails 1, which are fixedly connected to sleepers 2. The rails 1 are located above the sleepers 2 and are fixedly connected to the sleepers 2 by clips 3. Connecting plates 4 are fixedly connected to both sides of the sleepers 2. The sleepers 2 are fixedly connected to upper reinforcing bars 5 and lower reinforcing bars 6. The rails 1 are arranged in parallel.

[0032] The upper layer of reinforcing bars 5 is located in the upper part of the sleeper 2. Both ends of the upper layer of reinforcing bars 5 are fixedly connected to the connecting plates 4 on both sides of the sleeper 2. The lower layer of reinforcing bars 6 is located in the lower part of the sleeper 2. Both ends of the lower layer of reinforcing bars 6 are fixedly connected to the connecting plates 4 on both sides of the sleeper 2. The connecting plates 4 are fixedly connected to both ends of the upper layer of reinforcing bars 5 and the lower layer of reinforcing bars 6, thereby increasing the contact area and avoiding direct contact between the reinforcing bars and the adjustment structure, which would result in a small contact area and a large pressure burden.

[0033] Sleeper 2 is made of concrete, with the upper layer of steel bars 5 and the lower layer of steel bars 6 encased in concrete.

[0034] The steps of using this utility model are as follows: the rail 1 is fixedly connected to the sleeper 2 by the buckle 3. The track bed plate and base plate below the sleeper 2 are completed by concrete pouring. The sleeper 2 is provided with upper layer steel bars 5 and lower layer steel bars 6. The number of lower layer steel bars 6 is more than the number of upper layer steel bars 5. By increasing the number of steel bars in the lower part of the sleeper 2, the structural strength of the sleeper 2 is higher. The connecting plate 4 is welded and fixed to the upper layer steel bars 5 and lower layer steel bars 6 to form a whole. Then, the sleeper 2 is formed by concrete pouring.

[0035] Example 2, please refer to Figures 1 to 5 The difference from the basic embodiment 1 is that a sleeper adjustment device for ballastless track includes adjustment components 7 movably installed on both sides of the sleeper 2. The adjustment components 7 include a connector 701, a side sliding sleeve 703, a positioning bolt 704, an auxiliary bolt 708, and a balance mark 712.

[0036] Connector 701 is fixedly connected to the lower position of connecting plate 4. Connector 701 is fixed to connecting plate 4 by welding. Positioning bolt 704 is threadedly connected to connector 701. Auxiliary bolt 708 is movably connected to both sides of connector 701, thus forming a triangular structure. The lower ends of positioning bolt 704 and auxiliary bolt 708 are in contact with the ground for support. Side sliding sleeve 703 is fixedly connected to both sides of connector 701, and auxiliary bolt 708 is slidably connected inside side sliding sleeve 703. Auxiliary bolt 708 is slidably connected in side sliding sleeve 703 and positioned by side sliding sleeve 703. Balance mark 712 is rotatably connected to the front position of positioning bolt 704.

[0037] The adjusting assembly 7 also includes a positioning screw tube 702 and a first bearing 705. The positioning screw tube 702 is fixedly connected to the middle position of the connector 701. The positioning bolt 704 is threadedly connected to the positioning screw tube 702. The first bearing 705 is movably connected to the upper position of the positioning bolt 704, so that the positioning bolt 704 drives the first bearing 705 to move, and the height of the positioning bolt 704 and the first bearing 705 are adjusted synchronously.

[0038] The adjustment assembly 7 also includes a connecting rod 706 and an auxiliary screw tube 707. The connecting rod 706 is fixedly connected to the outer side of the first bearing 705, and the auxiliary screw tube 707 is fixedly connected to the outer end of the connecting rod 706. The positioning bolt 704 drives the auxiliary screw tube 707 to adjust the height synchronously. The auxiliary bolt 708 is threaded inside the auxiliary screw tube 707, making it easy to rotate the auxiliary bolt 708 to adjust the height.

[0039] The adjustment assembly 7 also includes a calibration mark 709, a mounting rod 710, and a second bearing 711. The calibration mark 709 is fixedly connected to the outer side of the first bearing 705. The mounting rod 710 is fixedly connected to the calibration mark 709. The balance mark 712 is rotatably connected to the calibration mark 709 through the second bearing 711. The weight of the plates on both sides of the balance mark 712 is even, so that the balance mark 712 is in a horizontal state when stationary through the second bearing 711. When the calibration mark 709 and the balance mark 712 are aligned, it indicates that the sleeper 2 and the connecting piece 701 are in a horizontal state. When the calibration mark 709 and the balance mark 712 are misaligned, it indicates that the sleeper 2 and the connecting piece 701 are tilted.

[0040] The steps of using this utility model are as follows: The positioning bolt 704 rotates threadedly inside the positioning screw tube 702, and the lower end of the positioning bolt 704 contacts the ground. The first bearing 705 on the positioning bolt 704 drives the connecting rod 706 and the auxiliary screw tube 707 to move synchronously. The auxiliary screw tube 707 drives the auxiliary bolt 708 to move synchronously. The lower end of the auxiliary bolt 708 is slidably connected in the side sliding sleeve 703, so that the lower end of the auxiliary bolt 708 can easily contact the ground. The auxiliary bolt 708 can rotate inside the auxiliary screw tube 707, so that the height of the auxiliary bolt 708 can be easily adjusted. The triangular structure formed by the auxiliary bolt 708 and the positioning bolt 704 contacts the ground, improving the stability of the sleeper 2 and the rail 1.

[0041] When sleeper 2 and rail 1 tilt, it will cause connecting plate 4 to tilt, connecting plate 4 to tilt connecting piece 701, connecting piece 701 to tilt positioning screw tube 702 and side sliding sleeve 703, causing positioning bolt 704 and auxiliary bolt 708 inside to tilt, and the calibration mark 709 on positioning bolt 704 to tilt synchronously, causing calibration mark 709 to be misaligned with balance mark 712, making the tilt state of sleeper 2 and rail 1 easy to observe and easy for staff to correct in time.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction structure for ballastless track, comprising a rail (1) fixedly connected to a sleeper (2), characterized in that: The rail (1) is fixedly connected to the sleeper (2) by a buckle (3). Connecting plates (4) are fixedly connected to both sides of the sleeper (2). The sleeper (2) is fixedly connected to the upper reinforcing bar (5) and the lower reinforcing bar (6).

2. The construction structure for a ballastless track according to claim 1, characterized in that: The upper layer of steel bars (5) is located in the upper part of the sleeper (2), and the two ends of the upper layer of steel bars (5) are fixedly connected to the connecting plates (4) on both sides of the sleeper (2).

3. The construction structure for a ballastless track according to claim 1, characterized in that: The lower layer steel bar (6) is located in the lower part of the sleeper (2), and the two ends of the lower layer steel bar (6) are fixedly connected to the connecting plates (4) on both sides of the sleeper (2).

4. The construction structure for a ballastless track according to claim 1, characterized in that: The sleeper (2) is made of concrete, and the upper steel bar (5) and the lower steel bar (6) are encased in concrete.

5. A sleeper adjustment device for ballastless track, applied to the construction structure of a ballastless track according to any one of claims 1-4, characterized in that: The adjustment assembly (7) is movably installed on both sides of the sleeper (2). The adjustment assembly (7) includes a connector (701), a side sliding sleeve (703), a positioning bolt (704), an auxiliary bolt (708), and a balance mark (712). The connector (701) is fixedly connected to the lower position of the connecting plate (4), the positioning bolt (704) is threadedly connected to the connector (701), the auxiliary bolt (708) is movably connected to both sides of the connector (701), the side sleeve (703) is fixedly connected to both sides of the connector (701), and the auxiliary bolt (708) is slidably connected inside the side sleeve (703), and the balance mark (712) is rotatably connected to the front position of the positioning bolt (704).

6. A sleeper adjustment device for ballastless track according to claim 5, characterized in that: The adjustment assembly (7) also includes a positioning screw tube (702) and a first bearing (705). The positioning screw tube (702) is fixedly connected to the middle position of the connector (701). The positioning bolt (704) is threadedly connected to the positioning screw tube (702). The first bearing (705) is movably connected to the upper position of the positioning bolt (704).

7. A sleeper adjustment device for ballastless track according to claim 6, characterized in that: The adjustment assembly (7) also includes a connecting rod (706) and an auxiliary screw tube (707). The connecting rod (706) is fixedly connected to the outer side of the first bearing (705), and the auxiliary screw tube (707) is fixedly connected to the outer end of the connecting rod (706). The auxiliary bolt (708) is threadedly connected inside the auxiliary screw tube (707).

8. A sleeper adjustment device for ballastless track according to claim 6, characterized in that: The adjustment assembly (7) also includes a calibration mark (709), a mounting rod (710), and a second bearing (711). The calibration mark (709) is fixedly connected to the outer side of the first bearing (705), the mounting rod (710) is fixedly connected to the calibration mark (709), and the balance mark (712) is rotatably connected to the calibration mark (709) through the second bearing (711).

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