Concrete elevation control device

Abstract

The utility model relates to a concrete elevation control device, and relates to the technical field of ballastless track roadbed slab construction, the concrete elevation control device comprises a frame body, a movable plate and a lifting assembly, the movable plate and the lifting assembly are arranged on the frame body, the frame body is movably connected with the movable plate, and extension plates are arranged on the two sides of the frame body respectively. The bottom surface of the extension plate and the bottom surface of the movable plate are on the same horizontal plane; the extension plates are used for making contact with roadbed slab concrete on the two sides of two steel rails respectively, the lifting assembly is used for making contact with the tops of the steel rails, and the movable plate is used for making contact with the bottoms of the steel rails and making contact with the roadbed slab concrete between the two steel rails. According to the device, through the lifting assembly, the movable plate and the extension plate which are movably arranged, flexible adjustment can be conducted according to the sizes of different steel rails, the device is suitable for the steel rails of different specifications, the universality of the device is greatly improved, and it is ensured that roadbed slab concrete of the different steel rails can be accurately leveled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ballastless track bed slab construction, in particular to a concrete elevation control device. BACKGROUND

[0002] In recent years, high-speed railway tracks mainly adopt ballastless track structures. Ballastless track refers to a track structure that replaces the scattered granular ballast bed with a whole foundation of concrete, asphalt mixture, etc. Compared with traditional ballast track, ballastless track has stronger stability, longer service life and higher running speed, which makes ballastless track gradually become the mainstream choice in high-speed railway construction.

[0003] However, the construction process and technical requirements of ballastless track are relatively high, especially in the setting of super-elevation in curved sections and the process of concrete fine leveling and finishing, the construction precision has a significant impact on the track quality. Since ballastless track adopts a whole concrete structure, each link in the laying process requires high precision. Factors such as the hardening process of concrete, changes in construction environment, and precision of construction devices can affect the final track flatness and elevation. Especially in the control of elevation, any slight error can negatively affect the integrity of the track, and thus affect the stability and safety of train travel.

[0004] Currently, most traditional ballast bed slab concrete elevation control devices can only adapt to a certain specific rail height, lacking flexibility and universality. Such devices are usually designed fixedly and cannot be adjusted according to different railway design requirements or actual construction conditions, resulting in insufficient elevation control precision. Especially in multiple types of rail height and track structure configurations, traditional elevation control devices often cannot adapt to different construction requirements, leading to error accumulation during the construction process.

[0005] Therefore, it is urgent to develop an elevation control device with universality that can adapt to multiple rail heights and track structures to ensure precision control during track construction, improve construction quality, avoid concrete elevation errors, and reduce rework and quality problems during the construction process. CONTENT OF THE INVENTION

[0006] In order to develop a concrete elevation control device that can adapt to multiple rail heights and track structures, the present application provides a concrete elevation control device.

[0007] The concrete elevation control device provided by the present application adopts the following technical solution:

[0008] The utility model provides a concrete elevation control device, including frame body and set up on the frame body movable plate, lifting assembly, the frame body with movable connection with the movable plate, the both sides of frame body are equipped with extension plate respectively, the bottom surface of extension plate with the bottom surface of movable plate is on the same horizontal plane, extension plate is used for with the both sides of two steel rail ballast concrete contact respectively, lifting assembly is used for with the top of steel rail contact, movable plate is used for with the bottom of steel rail contact and is used for with the ballast concrete contact between two steel rail.

[0009] Through the above technical scheme, in use, according to the specification of steel rail applied in construction site, the lifting assembly of frame body is adjusted to contact with the top of steel rail, to ensure that the lifting assembly can adapt to steel rail of different heights, the position of movable plate is adjusted to contact with the bottom of steel rail and the ballast concrete, in the process, extension plate and movable plate are on the same horizontal plane, movable plate controls the ballast concrete leveling between steel rails, extension plate controls the ballast concrete leveling on both sides of steel rail, extension plate and movable plate can control the elevation of concrete between and on both sides of steel rail simultaneously, to ensure that the flatness and elevation of the whole ballast concrete of ballastless track reach the design requirement, the device can be flexibly adjusted according to the size of different steel rails through the lifting assembly, movable plate and extension plate arranged movably, is applicable to steel rails of different specifications, greatly improves the universality of the device, and ensures that the ballast concrete of different steel rails can be accurately leveled.

[0010] In one specific implementation, the frame body is provided with a dragging operation part on both sides.

[0011] Through the above technical scheme, through the traction of the dragging operation part, the elevation control device can accurately adjust the elevation of ballast, to make the surface of the whole ballastless track reach the predetermined flatness, and the construction personnel need not use complex mechanical device, but only need to complete the elevation control through simple traction action, to avoid complex setting and adjusting process.

[0012] In one specific implementation, the movable plate and the frame body are connected through an activity assembly, the activity assembly includes a connecting rod and a nut set, the frame body is provided with a connecting hole, one end of the connecting rod is detachably connected with the movable plate, the other end penetrates out of the connecting hole, and the nut set is threadedly connected with the connecting rod to fix the connecting rod on the frame body.

[0013] By adopting the technical scheme, the position of the movable plate can be adjusted through the threaded connection of the connecting rod and the nut set, so that the two sides of the movable plate are in contact with the inner sides of the bottoms of the two rails, the bottom surface of the movable plate is in contact with the concrete of the track bed plate, and the connection between the movable plate and the frame body is very firm, preventing loosening or falling of the movable plate due to vibration or external force during work.

[0014] In a specific implementable scheme, the connecting rod and the movable plate are connected through a bolt.

[0015] By adopting the technical scheme, the bolt connection provides good adjustability and flexibility for the movable plate, and the angle and position of the movable plate can be quickly disassembled, installed or adjusted according to actual needs; and the bolt can ensure the stable connection between the connecting rod and the movable plate, so that the movable plate is not easy to loosen during long-term use, reducing the safety hazards caused by component loosening.

[0016] In a specific implementable scheme, the length of the movable plate is equal to the distance between the inner sides of the two rails.

[0017] By adopting the technical scheme, the length of the movable plate is equal to the distance between the inner sides of the two rails, so that the movable plate can be completely fitted on the rails, and the movable plate can be more easily positioned and installed, and when the movable plate is completely butted with the inner sides of the rails, butt error can be avoided, and the difficulty and time of installation and debugging can be reduced.

[0018] In a specific implementable scheme, the lifting assembly is provided in two groups and is in contact with the top of the two rails respectively, and the two groups of lifting assemblies are symmetrically arranged on the two sides of the movable plate.

[0019] By adopting the technical scheme, the lifting assembly is divided into two groups and is in contact with the two rails respectively, so that uniform distribution of load can be achieved, and tilting or instability caused by excessive stress on one side can be avoided; the symmetrically arranged lifting assemblies can effectively improve the stability, motion accuracy and service life of the whole device, while reducing wear and maintenance cost.

[0020] In a specific implementable scheme, the lifting assembly includes a height limiting plate and a spring set, one end of the spring set is connected with the frame body, the other end is connected with the height limiting plate, and the height limiting plate is in contact with the top of the rail.

[0021] By adopting the technical scheme, according to the specification of the steel rail applied in the construction site, the lifting assembly of the frame body is adjusted, so that the height limiting plate is in contact with the steel rail, and in this process, the contact force between the height limiting plate and the steel rail is supported by the spring set. The elastic support provided by the spring set not only ensures that the contact force between the height limiting plate and the steel rail is uniform, reduces impact and vibration, but also can be automatically adjusted according to the height change of the steel rail, so that the device can maintain efficient and stable operation in different working environments.

[0022] In a specific implementable scheme, the height limiting plate is provided with a sliding block, the frame body is provided with a sliding groove, and the sliding block is inserted into the sliding groove and slides against the sliding groove.

[0023] By adopting the technical scheme, the design of the sliding block and the sliding groove ensures the accuracy of the movement track of the height limiting plate during lifting, prevents irregular swinging or deviation of the device, and increases the stability of the device. The friction force between the sliding block and the sliding groove can control the lifting speed of the height limiting plate, provide necessary damping effect, and reduce impact and vibration generated during lifting.

[0024] In a specific implementable scheme, the two sides of the frame body are provided with mounting holes, and the extension plate is connected with the mounting holes through a bolt.

[0025] By adopting the technical scheme, the design of the bolt and the mounting hole makes the connection and disconnection of the extension plate and the frame body more convenient and fast, without the need for complex tools, reduces the difficulty of assembly and maintenance, and also enables the selection of corresponding extension plates according to actual needs.

[0026] In a specific implementable scheme, the length of the extension plate is equal to the designed width of the track bed plate concrete on both sides of the steel rail.

[0027] By adopting the technical scheme, the length of the extension plate matches the width of the track bed plate concrete, so that the extension plate can completely cover the leveling area of the track bed plate during work, thereby improving the quality of leveling work.

[0028] In summary, the present application has at least one of the following beneficial technical effects: the device has a simple structure, and through the cooperation of the frame body, the lifting assembly, the movable plate and the extension plate, the concrete elevation and slope requirements of the track bed plate of the ballastless track can be efficiently and accurately controlled; the device with the lifting assembly, the movable plate and the extension plate arranged movably can be flexibly adjusted according to the size of different steel rails, is suitable for different specifications of steel rails, greatly improves the universality of the device, and ensures that the track bed plate concrete of different steel rails can be accurately leveled; the device solves the problems of poor adaptability and insufficient precision of traditional devices, improves the quality and efficiency of the concrete construction of the track bed plate of the ballastless track, and provides important technical support for the construction of high-speed railways and intercity railways. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the concrete elevation control device according to an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram used to show the structure of the concrete elevation control device installed on the ballastless track.

[0031] Explanation of the accompanying symbols: 1. Frame body; 2. Connecting rod; 3. Threaded part; 4. Nut assembly; 5. Drag operation part; 6. Spring assembly; 7. Height limit plate; 8. Movable plate; 9. Mounting hole; 10. Extension plate; 11. Sliding groove; 12. Roadbed slab concrete; 13. Rail. DETAILED DESCRIPTION

[0032] The following is combined with Figures 1-2 This application is described in further detail.

[0033] Reference Figure 1 and Figure 2 The embodiment of the present application discloses a concrete elevation control device, including but not limited to being applied to the leveling work of the ballastless track slab concrete 12, thereby achieving the control of the flatness and elevation of the ballastless track slab concrete 12. In this embodiment, the ballastless track includes two rails 13;

[0034] The concrete elevation control device includes a frame body 1, a movable plate 8 provided on the frame body 1, and a lifting assembly. The frame body 1 and the movable plate 8 are movably connected. Extension plates 10 are provided on both sides of the frame body 1. The extension plates 10 and the movable plate 8 are both horizontally arranged. The bottom surface of the extension plate 10 is on the same horizontal plane as the bottom surface of the movable plate 8.

[0035] The extension plate 10 is used to contact the track slab concrete 12 on both sides of the two rails 13, the lifting assembly is used to contact the tops of the two rails 13, the outer walls of the movable plate 8 on both sides contact the bottom inner sides of the two rails 13, and the bottom of the movable plate 8 contacts the track slab concrete 12 between the two rails 13. This can achieve uniform load distribution and avoid tilting or instability caused by excessive force on one side. The symmetrical arrangement of the lifting assemblies can effectively improve the stability, movement accuracy and service life of the entire device, while reducing wear and maintenance costs.

[0036] The frame body 1 is provided with a dragging operation part 5 on each side, in the embodiment, the operator can bind a rope on the dragging operation part 5, and the whole device is moved by dragging the rope acting on the dragging operation part 5, so that the concrete elevation control device can adjust the elevation of the whole ballastless track bed slab, and the whole ballastless track bed surface reaches the predetermined flatness; and the construction personnel do not need to use complex mechanical devices, and can complete the elevation control only by simple traction action, avoiding the complex setting and adjusting process.

[0037] After the reinforcement is bound and the fine adjustment is completed, the concrete pouring work is carried out, and the concrete elevation control device needs to be installed first in the process; the operator adjusts the lifting assembly of the frame body 1 according to the specification of the steel rail 13 applied in the construction site, so that the lifting assembly is in contact with the top of the steel rail 13, and the position of the movable plate 8 is adjusted so that it is in contact with the bottom of the steel rail 13 and the bed slab concrete 12; after installation, the rope is bound on the dragging operation part 5, and the whole device is moved by dragging the rope acting on the dragging operation part 5, so that the leveling of the whole bed slab concrete 12 surface of the ballastless track is realized.

[0038] In the process, the extension plate 10 and the movable plate 8 are in the same horizontal plane, the movable plate 8 controls the leveling of the bed slab concrete 12 between the steel rails 13, and the extension plate 10 controls the leveling of the bed slab concrete 12 on both sides of the steel rail 13, and the extension plate 10 and the movable plate 8 can control the concrete elevation between and on both sides of the steel rail 13 at the same time, so as to ensure that the flatness and elevation of the whole bed slab concrete 12 of the ballastless track meet the design requirements; the lifting assembly, the movable plate 8 and the extension plate 10 can be flexibly adjusted according to the size of different steel rails 13, and are suitable for different specifications of steel rails 13, greatly improving the universality of the device and ensuring that the bed slab concrete 12 of different steel rails 13 can be accurately leveled.

[0039] The movable plate 8 and the frame body 1 are connected through a movable assembly; the movable assembly includes a connecting rod 2 and a nut set 4, in the embodiment, the connecting rod 2 is vertically arranged, the frame body 1 is provided with a connecting hole, one end of the connecting rod 2 is detachably connected with the movable plate 8 through a bolt, the other end penetrates out of the connecting hole, and the nut set 4 is threadedly connected with the connecting rod 2 to fix the connecting rod 2 on the frame body 1; in the embodiment, the connecting rod 2 is provided with a threaded part 3, the length of the threaded part 3 is greater than the hole depth of the connecting hole, the threaded part 3 is exposed outside, and the nut set 4 fixes the connecting rod 2 on the frame body 1 through threadedly connecting with the threaded part 3.

[0040] In the embodiment, the length of the movable plate 8 is equal to the distance between the inner sides of the two rails 13, which is the track gauge, that is, the length of the movable plate 8 is equal to the track gauge of the applied rail 13; in the actual construction process, according to the track gauge between the two rails 13 of the ballastless track, the movable plate 8 with a corresponding length is selected to ensure that the movable plate 8 is completely fitted on the rail 13, which can make the movable plate 8 easier to position and install, and can avoid the butt joint error when the movable plate 8 is completely butt-jointed with the inner side of the rail 13, thereby reducing the difficulty and time of installation and debugging; and in the subsequent dragging of the entire device to move and level, the movable plate 8 is less likely to sway or deviate when sliding on the rail 13, thereby improving the stability and accuracy of the movement of the entire device;

[0041] The bolt connection provides good adjustability and flexibility for the movable plate 8, which can select a movable plate 8 with a corresponding length to adapt to the rail 13 according to actual needs, and can quickly disassemble, install or adjust the angle and position of the movable plate 8; and the bolt can ensure the stable connection between the connecting rod 2 and the movable plate 8, so that the movable plate 8 is not easy to loosen during long-term use, thereby reducing the safety hazards caused by the loosening of the parts;

[0042] In work, according to the specification of the rail 13 at the construction site, a movable plate 8 with a corresponding length is selected, the movable plate 8 is connected with the connecting rod 2 through the bolt, and the other end of the connecting rod 2 is passed through the connecting hole of the frame body 1 and fixed by using the nut set 4. The nut set 4 is fastened with the connecting rod 2 through thread cooperation, and the connecting rod 2 is fixed on the frame body 1, thereby completing the installation of the movable plate 8. At this time, the two sides of the movable plate 8 are in contact with the inner sides of the bottoms of the two rails 13, and the bottom surface of the movable plate 8 is in contact with the track bed slab concrete 12.

[0043] In this process, the position of the movable plate 8 can be adjusted through the threaded connection between the connecting rod 2 and the nut set 4, so as to ensure that the two sides of the movable plate 8 are in contact with the inner sides of the bottoms of the two rails 13, and the bottom surface of the movable plate 8 is in contact with the track bed slab concrete 12, thereby being able to adapt to the use of the ballastless track leveling work of different specifications of rails 13; it can also ensure that the connection between the movable plate 8 and the frame body 1 is very firm, preventing the movable plate 8 from loosening or falling off due to vibration or external force during work. Compared with the traditional welding or riveting method, the connection scheme using the connecting rod 2 and the nut set 4 greatly simplifies the assembly and disassembly process, thereby ensuring the maintainability, universality and flexibility of the device.

[0044] The lifting assembly is provided in two groups and is in contact with the top of the two rails 13, and the two groups of lifting assemblies are symmetrically arranged on the two sides of the movable plate 8; thereby the uniform distribution of load can be realized, and the inclination or instability problem caused by the unilateral excessive stress can be avoided, and the symmetrically arranged lifting assemblies can effectively improve the stability, movement accuracy and service life of the entire device, while reducing the wear and maintenance cost.

[0045] Two lifting assemblies each include a height limiting plate 7 and a spring set 6, in this embodiment, the spring set 6 includes two vertically arranged springs, the height limiting plate 7 is horizontally arranged, one end of the spring set 6 is connected with the frame body 1, and the other end is connected with the height limiting plate 7, and the height limiting plate 7 is in contact with the top of the rail 13;

[0046] The height limiting plate 7 is provided with a sliding block, and the frame body 1 is provided with a sliding groove, the sliding block is inserted into the sliding groove and slides against the sliding groove; so as to ensure the accurate movement track of the height limiting plate 7 during lifting, prevent irregular swinging or deviation of the device, and increase the stability of the device; and the friction between the sliding block and the sliding groove can control the lifting speed of the height limiting plate 7, provide necessary damping effect, and reduce impact and vibration generated during lifting;

[0047] In work, according to the specification of the rail 13 applied in the construction site, the lifting assembly of the frame body 1 is adjusted, under the action of the spring set 6 and the driving action of the sliding connection of the sliding block and the sliding groove 11, the height limiting plate 7 is in contact with the top of the rail 13; in this process, the contact force between the height limiting plate 7 and the rail 13 is supported by the spring set 6, the elastic support provided by the spring set 6 not only ensures the uniform contact force between the height limiting plate 7 and the rail 13, reduces impact and vibration, but also can automatically adjust according to the height change of the rail 13, so that the device can maintain efficient and stable operation in different working environments.

[0048] In this embodiment, the frame body 1 is provided with mounting holes 9 on both sides, the mounting holes 9 correspond to the extension plates 10 one by one, the extension plates 10 are connected with the mounting holes 9 through the bolts, and the length of the extension plates 10 is equal to the design width of the track bed plate concrete 12 on both sides of the rail 13, so that the extension plates 10 can completely cover the leveling area of the track bed plate concrete 12, thereby improving the quality of leveling work.

[0049] The design of the bolt and the mounting hole 9 makes the connection and disconnection of the extension plate 10 and the frame body 1 more convenient and fast, without the need for complex tools, reduces the difficulty of assembly and maintenance, and can also select the corresponding extension plate 10 according to actual needs; and the bolt connection can ensure the firm connection between the extension plate 10 and the frame body 1, improve the structural stability, and prevent loosening.

[0050] The implementation principle of the embodiment of the application is that: the device can be flexibly adjusted according to the size of different rails 13 through the movably arranged lifting assembly, movable plate 8 and extension plate 10, is suitable for rails 13 of different specifications, greatly improves the universality of the device, and ensures that the track bed plate concrete 12 of different rails 13 can be accurately leveled;

[0051] After the reinforcement is bound and the fine adjustment is completed, the concrete pouring work is carried out, and in this process, the concrete elevation control device needs to be installed first; according to the design width of the track bed plate concrete 12 on both sides of the track 13 of the ballastless track, the corresponding length of the extension plate 10 is selected, the extension plate 10 is connected with the installation hole 9 through the bolt, the installation with the frame body 1 is completed, and then according to the specification of the track 13 on the construction site, the corresponding length of the movable plate 8 is selected, so that the length of the movable plate 8 is equal to the gauge between the two tracks 13, the movable plate 8 is connected with one end of the connecting rod 2 through the bolt, the other end of the connecting rod 2 is connected through the connecting hole of the frame body 1, the nut set 4 is fixed, the nut set 4 is fastened with the connecting rod 2 through the thread cooperation, the connecting rod 2 is fixed on the frame body 1, and the installation of the movable plate 8 is completed;

[0052] Then the concrete elevation control device is installed on the track 13, the position of the device is adjusted, so that the extension plate 10 is in contact with the track bed plate concrete 12 on both sides of the track 13; the lifting assembly of the frame body 1 is adjusted, at this time, under the action of the spring set 6 and the limiting of the sliding connection between the sliding block and the sliding groove 11, the height limiting plate 7 is in contact with the top of the track 13; then, the movable plate 8 is moved up and down by adjusting the movable assembly, the nut set 4 can be loosened, the connecting rod 2 is moved, the movable plate 8 is moved, so that the two sides of the movable plate 8 are in contact with the inner wall of the bottom of the two tracks 13, and the bottom of the movable plate 8 is in contact with the track bed plate concrete 12 of the two tracks 13; after installation, the rope is bound on the dragging operation part 5, and the whole device is moved by the action of the rope on the dragging operation part 5, so that the leveling of the whole ballastless track track bed plate concrete 12 surface is realized;

[0053] The structure of the device is simple, and through the cooperation of the frame body 1, the lifting assembly, the movable plate 8 and the extension plate 10, the concrete elevation and flatness requirements of the track bed plate of the ballastless track can be efficiently and accurately controlled; the device solves the problems of poor adaptability and insufficient precision of the traditional device, improves the quality and efficiency of the construction of the track bed plate concrete 12 of the ballastless track, and provides important technical support for the construction of high-speed railway and intercity railway.

[0054] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A concrete elevation control device, characterized by: The invention comprises a frame body (1), a movable plate (8) provided on the frame body (1), and a lifting assembly. The frame body (1) is movably connected to the movable plate (8). Extension plates (10) are respectively provided on both sides of the frame body (1). The bottom surface of the extension plate (10) and the bottom surface of the movable plate (8) are on the same horizontal plane. The extension plates (10) are respectively used to contact the roadbed concrete (12) on both sides of two rails (13). The lifting assembly is used to contact the top of the rail (13). The movable plate (8) is used to contact the bottom of the rail (13) and to contact the roadbed concrete (12) between the two rails (13).

2. The concrete level control device according to claim 1, characterized in that: A dragging operation portion (5) is provided on both sides of the frame body (1).

3. The concrete level control device according to claim 1, characterized in that: The movable plate (8) is connected to the frame body (1) via a movable assembly; the movable assembly comprises a connecting rod (2) and a nut assembly (4); the frame body (1) is provided with a connecting hole; one end of the connecting rod (2) is detachably connected to the movable plate (8), and the other end passes through the connecting hole; the nut assembly (4) is threadedly connected to the connecting rod (2) to fix the connecting rod (2) on the frame body (1).

4. The concrete level control device according to claim 3, characterized in that: The connecting rod (2) and the movable plate (8) are connected via a latch.

5. The concrete level control device according to claim 1, characterized in that: The length of the movable plate (8) is equal to the distance between the inner sides of the two steel rails (13).

6. The concrete level control device according to claim 1, characterized in that: The lifting components are provided in two groups, which respectively contact the tops of the two steel rails (13), and the two groups of lifting components are symmetrically arranged on both sides of the movable plate (8).

7. The concrete level control device according to claim 6, characterized in that: The lifting assembly comprises a height limiting plate (7) and a spring group (6), one end of the spring group (6) is connected to the frame body (1), and the other end is connected to the height limiting plate (7), and the height limiting plate (7) contacts the top of the rail (13).

8. The concrete level control device according to claim 7, characterized in that: The height limiting plate (7) is provided with a slider, and the frame body (1) is provided with a slide groove (11). The slider is inserted into the slide groove (11) and slides and abuts against each other in the slide groove (11).

9. The concrete level control device according to claim 1, characterized in that: Mounting holes (9) are provided on both sides of the frame body (1), and the extension plate (10) is connected to the mounting holes (9) via a latch.

10. The concrete level control device according to claim 1, characterized in that: The length of the extension plate (10) is equal to the design width of the track bed concrete (12) on both sides of the rail (13).

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