Concrete leveling device for U-shaped bottom plate of open cut tunnel of high-speed railway

Abstract

The utility model belongs to the technical field of leveling devices, and particularly relates to a high-speed railway open cut tunnel U-shaped bottom plate concrete leveling device which comprises positioning sliding rails arranged symmetrically. The two ends of the vibrating beam are each fixedly provided with a telescopic piece, the telescopic end of each telescopic piece is fixedly provided with a positioning pulley, and the positioning pulleys stretch into the positioning sliding rails at the corresponding positions and are in sliding guide fit with the positioning sliding rails; the U-shaped groove template is fixed at the bottom of the vibrating beam, and the U-shaped groove template is formed by connecting a plurality of U-shaped groove template bodies through bolts in sequence. The positioning device is easy to manufacture, convenient and fast to assemble and disassemble, light and easy to use in parts, high in construction efficiency and capable of achieving one-time positioning and continuous operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of leveling devices, and in particular relates to a U-shaped bottom plate concrete leveling device for an open-cut tunnel of a high-speed railway. Background Art

[0002] The quality control of tunnel concrete surface mainly includes: strength, flatness, thickness, width, longitudinal slope, transverse slope, cutting depth and structural depth, among which thickness, flatness and strength are the key points of quality control.

[0003] Cast-in-place concrete refers to concrete that is cast on the construction site. Concrete is a composite material that is made of gel material, aggregate and water in appropriate proportions and hardened after a certain period of time. It has the characteristics of abundant raw materials, low price and simple production process, so its usage is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability and wide range of strength grades. These characteristics make it widely applicable. In the cast-in-place concrete pouring project, after the concrete is vibrated, the surface should be processed according to the project requirements: use the surface grouting tool to repeatedly press and smear on the concrete surface until the surface finish required by the project is achieved.

[0004] There are also concrete leveling devices disclosed in the prior art. For example, CN205741796U discloses a concrete pouring and leveling tool for the base plate of a high-speed railway ballastless track, which includes a bracket, a leveling ruler and a running wheel. The length of the bracket is equal to the length of the leveling ruler. The leveling ruler is arranged directly below the bracket. The bracket and the leveling ruler are connected by a number of screws. A vibration motor is fixedly installed in the middle part of the leveling ruler. A forward and reverse switch for controlling the vibration motor is installed on the bracket. Push handles are arranged at both ends of the bracket. The two ends of the bracket are connected to the running wheel by angle steel. A leveling ruler running groove is arranged under the running wheel to facilitate the running of the running wheel. The leveling ruler running groove is installed on the side template of the base plate. The concrete leveling device disclosed in the patent has a stable structure, simple operation, improved efficiency, cost saving, and can meet the construction requirements. It is undeniable that the concrete leveling device disclosed in the patent can indeed achieve the above-mentioned effects, but it still has certain shortcomings: although a leveling ruler running groove is arranged under the running wheel to facilitate the running of the running wheel, in actual use, the running wheel may be disengaged from the running groove, affecting the reliability of the entire device. In addition, the width of the bracket is fixed and the scope of application is limited. Secondly, the U-shaped groove has a special structure and a chamfered area, and the concrete leveling device disclosed in the patent is difficult to control the flatness of the concrete surface of the U-shaped groove bottom plate.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a U-shaped bottom plate concrete leveling device for an open-cut tunnel of a high-speed railway, so as to solve the problems existing in concrete leveling in the background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A high-speed railway open-cut tunnel U-shaped bottom slab concrete leveling device, comprising:

[0009] Symmetrically arranged positioning rails;

[0010] A vibration beam, with a telescopic member fixed at each end, the telescopic end of the telescopic member is rotatably connected to a positioning pulley, and the positioning pulley extends into the positioning slide rail at the corresponding position and cooperates with the sliding guide;

[0011] A U-shaped groove template is fixed to the bottom of the vibration beam, and the U-shaped groove template is formed by connecting a plurality of U-shaped groove template bodies in sequence through bolts.

[0012] Preferably, the positioning slide rail is a U-shaped channel steel, and the openings of the two positioning slide rails are close to each other; and the telescopic member is a hydraulic telescopic rod.

[0013] Preferably, a positioning groove is provided in the middle of the positioning pulley along its circumference, and a positioning protrusion is fixed in the middle of the bottom wall of the positioning slide rail, extending along its length direction and corresponding to the positioning groove.

[0014] Preferably, the cross section of the positioning protrusion is an isosceles triangle; the cross section of the vibration beam is an isosceles trapezoid.

[0015] Preferably, the U-shaped groove template body consists of a horizontally arranged base plate template, a chamfer template symmetrically fixed at both ends of the base plate template and inclined upward, and a side wall template vertically welded to the top of the chamfer template.

[0016] Preferably, a fixing plate extending along the length direction is fixed at the middle position of the top of the U-shaped groove template body, and fixing holes are arranged at intervals on the fixing plate;

[0017] Vertically downward fixing parts are fixed at intervals on both sides of the bottom of the vibration beam, and the fixing parts are composed of two symmetrically arranged fixing rods, and bolt holes corresponding to the fixing holes are opened on the fixing rods; after the fixing plate is extended between the two fixing rods of the fixing parts at the corresponding positions, the U-shaped groove template body can be fixed to the bottom of the vibration beam by using external bolts to penetrate the bolt holes and the fixing holes at the corresponding positions.

[0018] Preferably, a connecting plate extending along the length direction is fixed to both sides of the top of the U-groove template body, and connecting holes are provided on the connecting plate at intervals. The two adjacent U-groove template bodies can be fixedly connected by penetrating the connecting holes on the two adjacent connecting plates on the two adjacent U-groove template bodies using external bolts.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] (1) The positioning device of the utility model is simple to manufacture, easy and quick to load and unload, the parts are light and easy to use, the construction efficiency is high, and after positioning once, continuous operation can be performed.

[0021] (2) The utility model connects the U-shaped groove formwork with the vibrating beam frame, and uses the U-shaped groove formwork as a leveling work surface, achieving the purpose of dual use of one formwork. In addition, the positioning slide rail is connected to the formwork through the beam frame and does not directly act on the construction structure, so that in the subsequent construction process such as steel bar installation and concrete pouring, the positioning of the embedded parts will not be offset, greatly improving the final positioning accuracy of the embedded parts and the appearance quality of the concrete after demolding.

[0022] (3) The positioning rail and the positioning pulley in the utility model are provided with positioning grooves and positioning protrusions that cooperate with each other, which can ensure that the entire plane is positioned on a horizontal line during operation and movement, without the need for repeated measurement, confirmation and debugging, thereby improving construction efficiency.

[0023] (4) The utility model provides a telescopic member on the vibration beam frame, which can adjust the length according to the size of the structure, so that the vibration beam can meet the concrete pouring in different stages, improve the construction efficiency, simplify the process and the required labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the structure of the U-shaped groove template body of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the positioning slide rail of the utility model;

[0028] Figure 5 is the cross section of the vibration beam of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the fixing member of the utility model.

[0030] Description of main reference numerals:

[0031] 1. Positioning slide rail; 11. Positioning protrusion;

[0032] 2. Vibrating beam;

[0033] 3. Telescopic parts;

[0034] 4. Positioning pulley; 41. Positioning groove;

[0035] 5. U-shaped groove template; 51. U-shaped groove template body; 511. Bottom plate template; 512. Chamfer template; 513. Side wall template; 514. Fixing plate; 515. Fixing hole; 516. Connecting plate; 517. Connecting hole;

[0036] 6. Fixing piece; 61. Fixing rod; 611. Bolt hole;

[0037] 7. Vibration motor. DETAILED DESCRIPTION

[0038] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example

[0040] See attached Figure 1-6 , a high-speed railway open-cut tunnel U-shaped bottom slab concrete leveling device, comprising:

[0041] The positioning rails 1 are symmetrically arranged, and the positioning rails 1 are U-shaped channel steels, and the openings of the two positioning rails 1 are close to each other;

[0042] A vibration beam 2 having an isosceles trapezoidal cross section has a telescopic member 3 fixed at each end thereof, the telescopic end of the telescopic member 3 being rotatably connected to a positioning pulley 4, the positioning pulley 4 extending into the positioning slide rail 1 at the corresponding position and cooperating with its sliding guide; in the present embodiment, the telescopic member 3 is a hydraulic telescopic rod; it should be supplemented that a round shaft can be welded at the telescopic end of the telescopic member 3, and the positioning pulley 4 can be rotatably cooperated with the round shaft; in addition, a vibration motor 7 is fixed to the middle position of the side of the vibration beam 2.

[0043] The U-shaped groove template 5 is fixed to the bottom of the vibration beam 2, and the U-shaped groove template 5 is formed by a plurality of U-shaped groove template bodies 51 connected in sequence by bolts. In this embodiment, the U-shaped groove template body 51 is composed of a horizontally arranged bottom plate template 511, a chamfer template 512 symmetrically fixed to both ends of the bottom plate template 511 and tilted upward, and a side wall template 513 vertically welded to the top of the chamfer template 512.

[0044] In this embodiment, a positioning groove 41 is provided in the middle of the positioning pulley 4 along its circumference, and a positioning protrusion 11 is fixed in the middle of the bottom wall of the positioning rail 1, extending along its length direction and corresponding to the positioning groove 41, and the cross section of the positioning protrusion 11 is an isosceles triangle.

[0045] Secondly, in this embodiment, the U-groove template 5 is connected to the vibration beam 2 as follows: a fixing plate 514 extending along the length direction is fixed at the middle position of the top of the U-groove template body 51, and fixing holes 515 are spaced apart on the fixing plate 514; vertically downward fixing members 6 are fixed at intervals on both sides of the bottom of the vibration beam 2, and the fixing members 6 are composed of two symmetrically arranged fixing rods 61, and bolt holes 611 corresponding to the fixing holes 515 are opened on the fixing rods 61; after the fixing plate 514 is extended between the two fixing rods 61 of the fixing member 6 at the corresponding position, the U-groove template body 51 can be fixed to the bottom of the vibration beam 2 by using an external bolt to penetrate the bolt hole 611 and the fixing hole 515 at the corresponding position and then threadedly connected with a nut.

[0046] In addition, in the present embodiment, the connection method between two adjacent U-groove template bodies 51 is as follows: a connecting plate 516 extending along its length direction is respectively fixed at both sides of the top of the U-groove template body 51, and connecting holes 517 are spaced apart on the connecting plate 516. The two adjacent U-groove template bodies 51 can be fixedly connected by using an external bolt to penetrate the connecting holes 517 on the two adjacent connecting plates 516 on the two adjacent U-groove template bodies 51 and then threadedly connected with a nut.

[0047] When in use, the length of the U-shaped groove template 5 is adjusted according to the structural dimensions of the U-shaped groove section to be used, the U-shaped groove template 5 that meets the construction design requirements is assembled, and it is fixed to the bottom of the vibration beam 2 by means of the fixing member 6 according to the above-mentioned connection method. Concrete pouring is carried out by pumping and pouring in layers. Vibration is carried out by inserting vibration, and leveling is carried out after the concrete surface basically reaches the required elevation.

[0048] Determine the elevation of the positioning rail 1 according to the height of the positioning rail 1 from the bottom plate template 511, and install the positioning rail 1 on the uncast side wall by bolts, welding or other suitable fixing methods. During construction, the U-groove template 5 is directly used as a template for concrete pouring. After the concrete is poured into the mold, the vibrating and leveling stage begins. Start the vibration motor 7 and perform the vibrating operation directly. After the leveling operation is completed, separate the vibration beam 2 from the U-groove template 5, and remove the vibration beam 2. After the strength of the poured concrete reaches the design requirements, remove the U-groove template 5, cover it with carpentry cloth, and sprinkle water for maintenance. After the maintenance is completed, deliver it.

[0049] Finally, it should be supplemented that the positioning pulley 4 can be an electric drive wheel in the prior art, so that the positioning pulley 4 can drive the vibration beam 2 and the U-shaped groove template 5 to move; of course, the positioning pulley 4 can also be an ordinary pulley, in which case the vibration beam 2 and the U-shaped groove template 5 can be driven to move by an external device. In addition, the weight of the vibrator 7 itself is not very large, and the flatness of the U-shaped groove template is slightly affected.

[0050] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A U-shaped floor concrete leveling device for an open-cut tunnel of a high-speed railway, characterized in that: include: Symmetrically arranged positioning rails; A vibration beam, with a telescopic member fixed at each end, the telescopic end of the telescopic member is rotatably connected to a positioning pulley, and the positioning pulley extends into the positioning slide rail at the corresponding position and cooperates with the sliding guide; A U-shaped groove template is fixed to the bottom of the vibration beam, and the U-shaped groove template is formed by connecting a plurality of U-shaped groove template bodies in sequence through bolts.

2. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 1 is characterized in that: The positioning slide rail is a U-shaped channel steel, and the openings of the two positioning slide rails are close to each other; the telescopic member is a hydraulic telescopic rod.

3. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 1 is characterized in that: A positioning groove is arranged in the middle of the positioning pulley along its circumference, and a positioning protrusion is fixed in the middle of the bottom wall of the positioning slide rail, which extends along its length direction and corresponds to the positioning groove.

4. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 3 is characterized in that: The cross section of the positioning protrusion is an isosceles triangle; the cross section of the vibration beam is an isosceles trapezoid.

5. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 1 is characterized in that: The U-shaped groove template body is composed of a horizontally arranged bottom plate template, chamfered templates symmetrically fixed at both ends of the bottom plate template and inclined upward, and a side wall template vertically welded to the top of the chamfered template.

6. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 5 is characterized in that: A fixing plate extending along the length direction is fixed at the middle position of the top of the U-shaped groove template body, and fixing holes are arranged at intervals on the fixing plate; Vertically downward fixing parts are fixed at intervals on both sides of the bottom of the vibration beam, and the fixing parts are composed of two symmetrically arranged fixing rods, and bolt holes corresponding to the fixing holes are opened on the fixing rods; after the fixing plate is extended between the two fixing rods of the fixing parts at the corresponding positions, the U-shaped groove template body can be fixed to the bottom of the vibration beam by using external bolts to penetrate the bolt holes and the fixing holes at the corresponding positions.

7. The high-speed railway open-cut tunnel U-shaped floor concrete leveling device according to claim 5 is characterized in that: A connecting plate extending along the length direction is fixed to both sides of the top of the U-shaped groove template body, and connecting holes are arranged at intervals on the connecting plates. The two adjacent U-shaped groove template bodies can be fixedly connected by penetrating the connecting holes on the two adjacent connecting plates on the two adjacent U-shaped groove template bodies using external bolts.

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