Tunnel steel arch mounting and positioning device

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a tunnel steel arch mounting and positioning device. The device comprises a horizontal base plate, and two cross beams, a cross beam distance adjusting mechanism and a graduated scale which are arranged on the horizontal base plate, wherein the two cross beams are arranged on the horizontal base plate in a sliding manner; the cross beam distance adjusting mechanism can enable the two cross beams to move in the opposite directions or in the opposite directions so as to adjust the distance between the two cross beams; the graduated scale is used for measuring the distance between the two cross beams. According to the use mode of the device, the distance between the two cross beams is adjusted through the cross beam distance adjusting mechanism, and the graduated scale is checked in real time in the adjusting process till the distance between the two cross beams is adjusted to a set numerical value; and then the two steel arches are correspondingly placed at the positions of the two cross beams correspondingly, and then the steel arches are installed. By the adoption of the device, the mounting distance of the tunnel steel arches can be accurately and efficiently controlled, the mounting precision of the tunnel steel arches is ensured, and the overall quality of tunnel engineering is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel steel arch installation and positioning device. Background Art

[0002] With the rapid development of the economy, the progress of society, and the rapid advancement of science and technology, my country's highway engineering construction has gradually transformed from traditional manual and mechanical operations to scientific and technological operations, standardized operations, and factory operations. The rapid updating of specifications and standards has gradually transformed from the early loose standards to the current refined standards. The introduction of standards by various provinces and cities has taken the highway engineering construction standards to a new level. Tunnel engineering is an important structure in the highway engineering construction process, and the requirements for tunnel engineering construction quality control are particularly stringent.

[0003] Tunnel steel arch frames are important supporting structures for tunnel projects. They support the deformation of surrounding rocks, bear the pressure of mountains or soil, and protect the safety and stability of tunnel construction and operation. The installation quality of steel arch frames during tunnel construction plays a decisive role in the quality and safety of tunnel projects. In the current tunnel construction process, installation is still mainly carried out manually, with a small number of mechanical installation methods. However, there are certain deviations in both mechanical and manual installation, especially in the spacing and verticality of steel arch frames. Utility Model Content

[0004] The utility model aims to provide a tunnel steel arch frame installation and positioning device to solve the technical problem in the prior art that the installation accuracy of the tunnel steel arch frame is low, thereby affecting the quality of the tunnel project.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tunnel steel arch installation and positioning device comprises a horizontal base plate, two crossbeams mounted on the horizontal base plate, a crossbeam spacing adjustment mechanism, and a scale, wherein:

[0007] The two beams are slidably mounted on the horizontal base plate;

[0008] The beam spacing adjustment mechanism can make the two beams move toward or away from each other to adjust the spacing between the two beams;

[0009] The scale is used to measure the distance between the two beams.

[0010] Furthermore, the beam spacing adjustment mechanism includes a rotating shaft, a driving gear and a driven rack, wherein:

[0011] The rotating shaft is rotatably mounted on the horizontal base plate;

[0012] The driving gear is fixed on the rotating shaft;

[0013] There are two driven racks and both are engaged with the driving gear. The two driven racks are respectively connected to the two beams.

[0014] Furthermore, an operating knob is provided on the rotating shaft.

[0015] Furthermore, there are two scales, which are arranged in parallel and at intervals at both ends of the beam.

[0016] Furthermore, each of the crossbeams is provided with a sliding hole on both sides along its length direction, and the two sliding holes on each crossbeam can be slidably mounted on the two scales.

[0017] Furthermore, a clamping block with a U-shaped structure is provided on the horizontal substrate, and the scale is clamped on the clamping block.

[0018] Furthermore, a screw fastener for fixing the scale is provided on one side of the clamping block.

[0019] Furthermore, each of the crossbeams is provided with a horizontal laser for emitting horizontal laser and / or a vertical laser for generating vertical laser.

[0020] Furthermore, it also includes a plurality of horizontal bubbles installed on the horizontal substrate.

[0021] Furthermore, it also includes a mounting plate and a plurality of horizontal adjustment screws, and the plurality of horizontal adjustment screws are used to mount the horizontal base plate on the mounting plate.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a track steel arch frame installation and positioning device comprising a horizontal base plate, two beams mounted on the horizontal base plate, a beam spacing adjustment mechanism and a scale, wherein: the two beams are slidably mounted on the horizontal base plate; the beam spacing adjustment mechanism can make the two beams move toward or away from each other to adjust the spacing between the two beams; the scale is used to measure the spacing between the two beams.

[0024] The device is used by adjusting the spacing between the two beams using the beam spacing adjustment mechanism, while checking the scale in real time until the spacing between the two beams reaches the set value. The two steel arches are then positioned correspondingly to the beams and installed. This device allows for precise and efficient control of the installation spacing of tunnel steel arches, ensuring installation accuracy and laying a solid foundation for overall quality control of tunnel projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the tunnel steel arch installation and positioning device provided by an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the top view of the tunnel steel arch installation and positioning device provided by an embodiment of the utility model;

[0028] Figure 3 for Figure 2 Cross-sectional view at AA;

[0029] Figure 4 A side structural schematic diagram of a tunnel steel arch installation and positioning device provided in an embodiment of the utility model.

[0030] icon:

[0031] 1- horizontal base plate; 11- clamping block; 12- screw fastener; 13- hemispherical groove;

[0032] 2- crossbeam; 21- sliding hole;

[0033] 3-beam spacing adjustment mechanism; 31-rotating shaft; 32-driving gear; 33-driven rack; 34-operating knob; 35-slide rail; 36-locking bolt;

[0034] 4-Horizontal bubble;

[0035] 5- scale ruler;

[0036] 61-Horizontal laser instrument; 62-Vertical laser instrument;

[0037] 7-Mounting plate;

[0038] 8- abutment fixing piece;

[0039] 9-level adjustment screw; 91-screw body; 92-butt joint;

[0040] 10- Bracket. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] It should be noted that in the description of this utility model, the terms "connection" and "installation" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; direct connection or connection through an intermediate medium; mechanical connection or electrical connection. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0044] The utility model provides a tunnel steel arch installation positioning device, referring to Figure 1 The device includes a horizontal substrate 1, two beams 2 mounted on the horizontal substrate 1, a beam spacing adjustment mechanism 3, and a scale 5, wherein:

[0045] Two beams 2 are slidably mounted on a horizontal base plate 1;

[0046] The beam spacing adjustment mechanism 3 can make the two beams 2 move toward or away from each other to adjust the spacing between the two beams 2;

[0047] The scale 5 is used to measure the distance between the two beams 2 .

[0048] The device is used by adjusting the spacing between the two crossbeams 2 using the crossbeam spacing adjustment mechanism 3, while checking the scale 5 in real time until the spacing between the two crossbeams 2 reaches the set value. The two steel arches are then placed in the corresponding positions of the two crossbeams 2 and installed. This device allows for precise and efficient control of the installation spacing of tunnel steel arches, ensuring installation accuracy and laying a solid foundation for overall quality control of tunnel projects.

[0049] Continue to refer to Figure 1 The beam spacing adjustment mechanism 3 includes a rotating shaft 31, a driving gear 32 and a driven rack 33, wherein:

[0050] The rotating shaft 31 is rotatably mounted on the horizontal base plate 1;

[0051] The driving gear 32 is fixed on the rotating shaft 31;

[0052] There are two driven racks 33 and both are engaged with the driving gear 32 . The two driven racks 33 are connected to the two beams 2 respectively.

[0053] Specifically, refer to Figure 2 and Figure 3 The rotating shaft 31 is rotatably mounted on the horizontal base plate 1 through a bearing, the driving gear 32 is fixed on the rotating shaft 31, and the two driven racks 33 are respectively engaged with the opposite sides of the driving gear 32; the beam spacing adjustment mechanism 3 also includes two parallel and spaced slide rails 35 fixed on the horizontal base plate 1, the two driven racks 33 are respectively slidably connected to the two slide rails 35 through a plurality of sliders, and the two driven racks 33 are respectively fixed to the two beams 2 by bolts.

[0054] In the above structure, the slide rail 35 can limit the movement trajectory of the driven rack 33 and the crossbeam 2, further improving the relative position accuracy of the two crossbeams 2.

[0055] To facilitate the operator's rotation of the driving gear 32, an operating knob 34 is provided on the rotating shaft 31. When the spacing between the two beams 2 needs to be adjusted, the operator rotates the operating knob 34 to rotate the rotating shaft 31 and the driving gear 32 on the rotating shaft 31, indirectly driving the two driven racks 33 to move in opposite directions, thereby driving the two beams 2 to move toward or away from each other, thereby achieving the purpose of adjusting the spacing between the two beams 2.

[0056] In this embodiment, a locking bolt 36 is provided on the driving gear 32. One end of the locking bolt 36 penetrates the driving gear 32 and abuts the horizontal base plate 1, thereby locking the driving gear 32 in place and preventing it from rotating without human intervention. To rotate the driving gear 32, the locking bolt 36 is simply rotated away from the horizontal base plate 1 to release the locking force on the driving gear 32.

[0057] Continue to refer to Figure 2 The number of the scales 5 is two and they are arranged in parallel and spaced apart at both ends of the beam 2. During the adjustment process, the above device can check the position of the beam 2 and whether the two ends of the beam 2 are offset in real time.

[0058] Based on the above structure, each crossbeam 2 is provided with a sliding hole 21 on both sides along its length, and the two sliding holes 21 on each crossbeam 2 are slidably mounted on the two scales 5. The plug-in fit between the scales 5 and the sliding holes 21 further restricts the movement of the crossbeam 2 and makes it easier to view the values ​​on the scales 5.

[0059] Continue to refer to Figure 2 The horizontal base plate 1 is provided with a U-shaped block 11, onto which the scale 5 is secured. A screw fastener 12 is provided on one side of the block 11 to secure the scale 5. In this embodiment, two rows of blocks 11 are provided on the horizontal base plate 1, with the two scales 5 secured to each row of blocks 11. Each scale 5 is provided with multiple blocks 11 along its length to enhance the mounting strength of the scale 5. A screw fastener 12 is threaded onto one side of each block 11. The end of the screw fastener 12 can abut against the corresponding scale 5, thereby locking the scale 5 in place.

[0060] Continue to refer to Figure 2 Each crossbeam 2 is equipped with a horizontal laser 61 for emitting horizontal laser and / or a vertical laser 62 for generating vertical laser.

[0061] In this embodiment, each crossbeam 2 is equipped with a horizontal laser instrument 61 on either side of its length. The two horizontal laser instruments 61 on each crossbeam 2 emit beams toward two scales 5, respectively. The overlap between the beams and the corresponding scales 5 serves as the spacing control point, allowing for more precise control of the steel arch spacing. A vertical laser instrument 62 is also installed on the center of each crossbeam 2 to control the verticality of the steel arch. When all three lines are aligned with the central axis of the steel arch, the arch installation is confirmed to be satisfactory.

[0062] Continue to refer to Figure 2 The tunnel steel arch installation and positioning device further includes a plurality of leveling bubbles 4 mounted on the horizontal base plate 1. In this embodiment, the horizontal base plate 1 is provided with a leveling bubble 4 along both the longitudinal and transverse directions, and the leveling bubble 4 is used to control the levelness of the horizontal base plate 1 and the components mounted thereon.

[0063] Reference Figure 4 The tunnel steel arch installation and positioning device also includes a mounting plate 7 and several horizontal adjustment screws 9. These screws 9 secure the horizontal base plate 1 to the mounting plate 7. The mounting plate 7 can be elevated by brackets 10 to ensure the overall height of the device meets installation requirements. The screws 9 are evenly spaced around the driving gear 32 and are used to level the horizontal base plate 1.

[0064] In this embodiment, each horizontal adjustment screw 9 includes a screw body 91 and a butt joint 92, wherein: the screw body 91 is screwed and passes through the mounting plate 7; the butt joint 92 is screwed to one end of the screw body 91 close to the horizontal substrate 1, and a spherical block is provided at the end of the butt joint 92 close to the horizontal substrate 1, and the spherical block is inserted into the hemispherical groove 13 on the horizontal substrate 1.

[0065] Based on the above structure, abutment fixing member 8 is detachably mounted on mounting plate 7. Abutment fixing member 8 is provided with another hemispherical groove that matches the shape of hemispherical groove 13. The horizontal base plate 1 and abutment fixing member 8 enclose a complete spherical groove, into which the spherical block of abutment 92 is retained. A through-hole is provided in the center of abutment fixing member 8 for the end of abutment 92, away from the spherical block, to pass through.

[0066] During the process of adjusting the levelness of the horizontal base plate 1 , the spherical clamping block can rotate within a small range in the spherical groove, thereby avoiding the phenomenon of getting stuck during the adjustment process.

[0067] During use of the above-mentioned device, the spacing between the two beams 2 is first adjusted through the beam spacing adjustment mechanism 3, the scale 5 and the laser instrument, and then the horizontal adjustment is performed through the level bubble 4 and the horizontal adjustment screw 9 so that the light emitted by all the laser instruments is in the set position; then, the position and angle of the steel arch frame are adjusted so that the three central axes of the steel arch frame and the corresponding light beams emitted by the three laser instruments are collinear. At this time, the spacing and verticality of the steel arch frame meet the installation requirements.

[0068] The tunnel steel arch frame installation and positioning device provided in this application utilizes the penetrability of lasers, the linear propagation of light and other properties, combined with structures such as the beam spacing adjustment mechanism 3, the scale 5 and the horizontal adjustment screw 9 to control the spacing and verticality of the steel arch frame, ensuring the spacing and verticality of the tunnel steel arch frame installation, and laying a solid foundation for the overall quality control of the tunnel project.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tunnel steel arch installation and positioning device, characterized in that: It comprises a horizontal substrate (1), two beams (2) mounted on the horizontal substrate (1), a beam spacing adjustment mechanism (3), and a scale (5), wherein: The two crossbeams (2) are slidably mounted on the horizontal base plate (1); The crossbeam spacing adjustment mechanism (3) is capable of causing the two crossbeams (2) to move toward or away from each other, thereby adjusting the spacing between the two crossbeams (2); The scale (5) is used to measure the distance between the two beams (2).

2. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: The crossbeam spacing adjustment mechanism (3) comprises a rotating shaft (31), a driving gear (32) and a driven rack (33), wherein: The rotating shaft (31) is rotatably mounted on the horizontal substrate (1); The driving gear (32) is fixedly mounted on the rotating shaft (31); There are two driven racks (33) and both are engaged with the driving gear (32). The two driven racks (33) are respectively connected to the two crossbeams (2).

3. The tunnel steel arch installation and positioning device according to claim 2, characterized in that: An operating knob (34) is provided on the rotating shaft (31).

4. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: The number of the scales (5) is two and they are arranged in parallel and at intervals at both ends of the beam (2).

5. The tunnel steel arch installation and positioning device according to claim 4, characterized in that: Each crossbeam (2) is provided with a sliding hole (21) on both sides along its length direction, and the two sliding holes (21) on each crossbeam (2) can be slidably mounted on the two scales (5).

6. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: A clamping block (11) with a U-shaped structure is provided on the horizontal base plate (1), and the scale (5) is clamped on the clamping block (11).

7. The tunnel steel arch installation and positioning device according to claim 6, characterized in that: A screw fastener (12) for fixing the scale (5) is provided on one side of the clamping block (11).

8. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: Each of the crossbeams (2) is provided with a horizontal laser (61) for emitting horizontal laser light and / or a vertical laser (62) for generating vertical laser light.

9. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: It also includes a plurality of horizontal bubbles (4) installed on the horizontal substrate (1).

10. The tunnel steel arch installation and positioning device according to claim 1, characterized in that: It also includes a mounting plate (7) and a plurality of horizontal adjustment screws (9), wherein the plurality of horizontal adjustment screws (9) mount the horizontal base plate (1) on the mounting plate (7).

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