Transverse limiting device of track plate
By designing a rail plate lateral limiting device including limiting rods, bases and limit bolts, the problem of lateral displacement of the rail plate during construction is solved, and the construction accuracy and quality are improved.
Patent Information
- Application Number
- CN202421360490.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the construction process, track plates are prone to lateral displacement under the buoyancy action of self-contained concrete and the gravity of curved segments, affecting the accuracy and quality of construction.
A transverse limiting device for a track plate is designed, including a limiting rod, a base and a limiting bolt. The limit beam of the limit rod spans the track plate, the foot of the base is opposite to the slope of the base plate, the fastening bolts fix the limit rod, and the track plate is laterally limited by the limit bolts.
Through this device, the lateral displacement of the track plate can be effectively prevented and the construction accuracy and quality can be improved.
Smart Images
Figure CN222700739U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rail transportation, and in particular to a device for lateral limiting of a rail plate. Background Art
[0002] The CRTS III slab track structure includes a concrete base plate, a self-compacting concrete filling layer and a track plate from bottom to top. In the construction of prefabricated track plates, the self-compacting concrete needs to be poured continuously at one time, which places high requirements on the performance indicators of the self-compacting concrete.
[0003] The self-compacting concrete flows into the grouting holes of the track slab, forming a self-compacting concrete filling layer under the track slab. Under the buoyancy of the self-compacting concrete, the track slab is prone to lateral displacement during construction, affecting the accuracy and quality of the construction. Therefore, it is necessary to prevent the track slab from lateral displacement during construction. Utility Model Content
[0004] The technical problem to be solved by the utility model is: how to prevent the track plate from being displaced in the lateral direction under the buoyancy of the self-compacting concrete and the gravity of the curved section during the construction process.
[0005] In view of the above problems, the technical solution proposed by the utility model is: a lateral limit device for a track plate, the track plate is arranged above the base plate, and includes a limit rod, and the limit rod includes a limit beam and a base, both ends of the limit beam are fixedly connected with the base, and the limit beam spans the track plate; the outer side of the upper end of the base plate is provided with a downwardly inclined inclined surface, and the bottom of the base of the limit rod is provided with a downwardly protruding blade foot, the blade foot of the base is against the inclined surface of the base plate, and the inner side of the base is also provided with a limit bolt against the track plate.
[0006] Preferably, a threaded sleeve is embedded in the base plate, an internal thread is provided in the threaded sleeve, a through mounting hole is provided at the bottom of the base of the limiting rod, a fastening bolt passes through the mounting hole and is tightened in the threaded sleeve, so that the blade foot of the base is pressed against the inclined surface of the base plate.
[0007] Preferably, inclined surfaces are provided on both sides of the base plate, and the bases at both ends of the limiting rod are each provided with a blade foot, and the two blade feet are respectively against the inclined surfaces on both sides of the base plate, and the inclined surfaces on both sides of the base plate can laterally limit the limiting rod through the blade feet.
[0008] Preferably, the cross-section of the blade foot is a right triangle, one right-angled side is fixedly connected to the bottom of the base, and the other right-angled side faces the inner side of the base.
[0009] Preferably, a wedge-shaped wedge iron is further provided between the blade foot and the fastening bolt, and two ends of the wedge iron are respectively tightened against the blade foot and the fastening bolt.
[0010] Preferably, a nut is fixedly connected to the inner side of the base, and the limiting bolt is connected to the nut in a threaded manner, and tightening the limiting bolt can cause the limiting bolt to press against the track plate.
[0011] The beneficial technical effect of the utility model is as follows: by providing a downwardly inclined inclined surface on the outer side of the upper end of the base plate, and providing a downwardly protruding blade foot at the bottom of the base of the limit rod, a fastening bolt is passed through the bottom of the base and tightened in the threaded sleeve, so that the inclined surfaces on both sides of the base plate can laterally limit the limit rod through the blade foot. Limiting bolts are provided on the inner side of the base to press against the track plate, thereby laterally limiting the track plate. The utility model fixes the limit rod by the fastening bolts in the base and the threaded sleeve embedded in the base plate, and limits the lateral movement of the blade foot of the base by the inclined surfaces on both sides of the base plate, further stabilizing the limit rod in the lateral direction, and screwing the limiting bolts in the base can accurately limit the track plate in the lateral direction, thereby improving the accuracy and quality of construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall structure of the first embodiment in a top view;
[0013] Figure 2 This is a schematic diagram of the overall structure of the main viewing direction of the first embodiment;
[0014] Figure 3 for Figure 2 A partial enlarged view of
[0015] Figure 4 Schematic diagram of the three-dimensional structure of the limiting rod;
[0016] Figure 5 It is a schematic diagram of the local structure in the second embodiment;
[0017] In the figure: a limit beam 11, a base 12, a fastening bolt 13, a limit bolt 14, a blade foot 15, a wedge 16, a track plate 2, a grouting hole 3, a side formwork 4, a threaded sleeve 5, a base plate 6, and an inclined surface 61. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the embodiments and drawings: Embodiment 1
[0019] like Figure 1 , Figure 2 and Figure 4As shown, the CRTSⅢ type ballastless track structure includes a base plate 6, a self-compacting concrete filling layer and a track plate 2 from bottom to top. During construction, the track plate 2 is set above the base plate 6, and a plurality of limit rods are used to cross the track plate 2, and the limit beam 11 of the limit rod is used to directly press the track plate 2, so as to limit the rising height of the track plate 2. The track plate 2 is surrounded by a side formwork 4, and the self-compacting concrete flows into the grouting hole 3 of the track plate 2. At this time, the side formwork 4 seals the space for the self-compacting concrete to flow, and the self-compacting concrete will form a self-compacting concrete filling layer between the track plate 2, the base plate 6 and the side formwork 4. The track plate 2 tends to rise under the combined action of the buoyancy of the self-compacting concrete and the limit of the limit rod.
[0020] like Figures 1 to 4 As shown, the limit rod includes a limit beam 11 and a base 12. The limit beam 11 is a hollow rectangular parallelepiped. The limit beam 11 spans the track plate 2. Both ends of the limit beam 11 are fixedly connected to the base 12, and the lower end of the base 12 is fixedly connected to the base plate 6. A downwardly inclined inclined surface 61 is provided on the outer side of the upper end of the base plate 6, and the downwardly inclined inclined surfaces 61 are provided on both sides of the base plate 6 in the lateral direction. A downwardly protruding blade foot 15 is provided at the bottom of the base 12 of the limit rod, and the base 12 at both ends of the limit rod is respectively provided with a blade foot 15. Threaded sleeves 5 are pre-embedded on both sides of the base plate 6, and internal threads are provided in the threaded sleeves 5. A through mounting hole is opened at the bottom of the base 12 of the limit rod. The position of the mounting hole at the bottom of the base 12 matches the position of the threaded sleeve 5 embedded in the base plate 6. When the limit rod crosses the track plate 2, the mounting holes at the bottom of the base 12 at both ends of the limit rod will be just above the threaded sleeve 5 embedded on both sides of the base plate 6.
[0021] By passing the fastening bolt 13 through the mounting hole at the bottom of the base 12 and tightening it in the threaded sleeve 5, the blade foot 15 of the base 12 can be pressed against the inclined surface 61 of the base plate 6, so that the inclined surfaces 61 on both sides of the base plate 6 can limit the limit rod laterally through the blade foot 15. The vertical cross-section of the blade foot 15 of this embodiment is a right triangle, one right-angled side of the blade foot 15 is fixedly connected to the bottom of the base 12, and the other right-angled side of the blade foot 15 faces the inner side of the base 12. The lateral direction in this embodiment is Figure 1 The length direction of the middle limiting beam 11.
[0022] A nut is fixedly connected to the inner side of the base 12, and the height of the nut is consistent with the height of the middle part of the track plate 2. The limit bolt 14 is connected to the nut in a threaded matching manner. Tightening the limit bolt 14 can make the limit bolt 14 press against the track plate 2. Since the fastening bolt 13 of the base 12 of the limit rod is tightened in the threaded sleeve 5 of the base plate 6, the limit rod can be fixed; and the inclined surfaces 61 on both sides of the base plate 6 can limit the limit rod laterally through the blade feet 15, which can further stabilize the limit rod in the lateral direction; screwing the limit bolt 14 in the base 12 can accurately limit the track plate 2 in the lateral direction, thereby improving the accuracy and quality of construction. Embodiment 2
[0023] like Figure 5 As shown, the difference from the first embodiment is that a wedge-shaped wedge iron 16 is further provided between the blade foot 15 and the fastening bolt 13 in this embodiment, and the two ends of the wedge iron 16 are respectively pressed against the blade foot 15 and the fastening bolt 13. In this embodiment, the wedge iron 16 can be used to further limit the limit rod in the lateral direction, thereby further improving the stability of the limit rod in the lateral direction, and the track plate 2 can be better limited in the lateral direction through the limit bolt 14 in the base 12.
[0024] Obviously, without departing from the principle of the present invention, several improvements or modifications made should be regarded as within the protection scope of the present invention.
Claims
1. A lateral limit device for a track plate, the track plate is arranged above a base plate, characterized in that: It includes a limit rod, and the limit rod includes a limit beam and a base. Both ends of the limit beam are fixedly connected to the base, and the limit beam spans the track plate. The outer side of the upper end of the base plate is provided with a downwardly inclined inclined surface, and the bottom of the base of the limit rod is provided with a downwardly protruding blade foot, and the blade foot of the base is against the inclined surface of the base plate. The inner side of the base is also provided with a limit bolt that is against the track plate.
2. A lateral limiting device for a track plate according to claim 1, characterized in that: A threaded sleeve is embedded in the base plate, and an internal thread is arranged in the threaded sleeve. A through mounting hole is opened at the bottom of the base of the limit rod. The fastening bolt passes through the mounting hole and is tightened in the threaded sleeve, so that the blade foot of the base is pressed against the inclined surface of the base plate.
3. A lateral limiting device for a track plate according to claim 2, characterized in that: Both sides of the base plate are provided with inclined surfaces, and the bases at both ends of the limiting rod are respectively provided with a blade foot, and the two blade feet are respectively against the inclined surfaces on both sides of the base plate, and the inclined surfaces on both sides of the base plate can laterally limit the limiting rod through the blade feet.
4. A lateral limiting device for a track plate according to claim 3, characterized in that: The cross section of the blade foot is a right triangle, one right angle side is fixedly connected to the bottom of the base, and the other right angle side faces the inner side of the base.
5. A lateral limiting device for a track plate according to claim 4, characterized in that: A wedge-shaped wedge iron is also arranged between the blade foot and the fastening bolt, and two ends of the wedge iron are respectively pressed against the blade foot and the fastening bolt.
6. A lateral limiting device for a track plate according to claim 1, characterized in that: A nut is fixedly connected to the inner side of the base, and the limit bolt is connected to the nut in a threaded matching manner. Tightening the limit bolt can cause the limit bolt to press against the track plate.