Inverted arch steel bar row distance control clamp for tunnel construction

Abstract

The utility model discloses an inverted arch steel bar row spacing control clamp for tunnel construction, which is characterized by comprising a pair of spacing control clamps, and a plurality of positioning holes for connecting steel bars are vertically arranged in the length direction of the spacing control clamps; the plurality of row pitch control fixtures are uniformly distributed, the two ends of each row pitch control fixture are respectively clamped with the pair of spacing control fixtures, and each row pitch control fixture is also provided with a distance measuring mechanism for accurately measuring the distance between the pair of spacing control fixtures. The inverted arch steel bar positioning device has the advantages that the laser range finder is used and is matched with adjustment of the distance adjusting mechanism, so that accurate positioning of the inverted arch steel bars can be achieved, displacement of the inverted arch steel bars in the concrete pouring process is avoided, and it is guaranteed that the distance and the row distance of the inverted arch steel bars meet the design and specification requirements. The distance between the steel bars can be monitored in real time and corrected in time, and it is ensured that data of the inverted arch steel bars always meet requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and particularly relates to a control fixture for the spacing between the longitudinal and transverse bars of inverted arches used in tunnel construction. Background Art

[0002] In tunnel construction projects, exposed steel bars are often fixed by using spacing control fixtures, and the installation can only be manually measured by construction workers using measuring tools. Once the traditional control fixtures are installed, real-time spacing control cannot be performed for timely correction. Precision deviation occurs during installation, resulting in non-compliance during final acceptance. Therefore, a device that can correct the distance between the inner and outer inverted arch steel bars in real time is needed to ensure construction quality. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a control fixture for the spacing between the longitudinal and transverse bars of inverted arches used in tunnel construction according to the deficiencies of the above-mentioned prior art. By using a laser rangefinder and adjusting through an adjustment mechanism, the distance between the inner and outer inverted arch steel bars can be accurately controlled.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A control fixture for the spacing between the longitudinal and transverse bars of inverted arches used in tunnel construction, which includes:

[0006] A pair of spacing control fixtures, with a plurality of positioning holes for connecting steel bars vertically arranged along their length directions;

[0007] A plurality of row spacing control fixtures, evenly distributed and respectively clamped at both ends with a pair of the spacing control fixtures, where

[0008] The row spacing control fixture is further provided with a ranging mechanism for accurately measuring the distance between a pair of the spacing control fixtures.

[0009] Optionally, each of the spacing control fixtures includes:

[0010] A pair of clamping plates, butt-jointed with each other to form a fixing plate;

[0011] A pair of fastening components for fixing the pair of clamping plates, where

[0012] A plurality of the positioning holes for connecting steel bars are vertically and penetratingly arranged along the length direction of the fixing plate.

[0013] Optionally, a pair of the clamping plates are respectively provided with semi-circular grooves at several corresponding positions, and when the pair of clamping plates are butt-jointed, the two semi-circular grooves form the positioning holes.

[0014] Optionally, the positions of several of the positioning holes are consistent with the designed spacing of several steel bars.

[0015] Optionally, a pair of uniformly distributed fixing holes are relatively and penetratingly provided on the side walls of a pair of the clamping plates, and the fastening assembly passes through the fixing holes to fix the pair of clamping plates.

[0016] Optionally, each of the row spacing control fixtures includes:

[0017] A pair of U-shaped clamping members;

[0018] A pair of cross bars respectively connected to opposite sides of the pair of U-shaped clamping members;

[0019] A threaded sleeve whose two ends are respectively threadedly connected to the pair of cross bars; and

[0020] The distance measuring mechanism provided on the top of the U-shaped clamping member.

[0021] Optionally, the distance measuring mechanism includes:

[0022] A laser rangefinder connected to the top of any one of the U-shaped clamping members;

[0023] A distance measuring plate connected to the top of the other U-shaped clamping member,

[0024] The laser rangefinder obtains real-time measurement data after emitting laser to the distance measuring plate.

[0025] Optionally, the laser rangefinder includes:

[0026] A housing;

[0027] A laser emission source arranged in the housing;

[0028] A control button and a display screen installed on the top of the housing and electrically connected to the laser emission source;

[0029] An emission window provided on one side of the housing facing the distance measuring plate for the laser emitted by the laser emission source to pass through;

[0030] A warning lamp provided on the housing and located below the emission window; and

[0031] A charging port provided on the housing and electrically connected to the laser emission source.

[0032] Optionally, a light-shielding cover is further arranged on the upper part of the emission window.

[0033] Optionally, the laser rangefinder is electrically connected or communicatively connected to an external control terminal.

[0034] The advantages of the present utility model are:

[0035] By using a laser rangefinder and coordinating with the adjustment of the distance adjustment mechanism, the utility model can achieve the precise positioning of the invert steel bars, avoid the displacement of the invert steel bars during the concrete pouring process, and ensure that the spacing and row spacing of the invert steel bars meet the design and specification requirements. Moreover, the steel bar spacing can be monitored in real time and corrected in a timely manner to ensure that the data of the invert steel bars always meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural view of the spacing and row spacing control fixture of the utility model;

[0037] Figure 2 is an exploded view of the spacing and row spacing control fixture of the utility model;

[0038] Figure 3 is a schematic structural view of the row spacing control fixture of the utility model;

[0039] Figure 4 is a schematic structural view of the laser generator of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Each label in the figure is respectively: 1, spacing control fixture; 2, row spacing control fixture; 3, ranging mechanism; 11, fixing plate; 12, positioning hole; 13, fixing hole; 14, fastening assembly; 21, U-shaped clamping member; 22, cross bar; 23, threaded sleeve; 31, laser rangefinder; 32, ranging plate; 100, spacing and row spacing control fixture; 111, clamping plate; 121, semi-circular groove; 311, housing; 312, control button; 313, display screen; 314, emission window; 315, indicator light; 316, charging port; 317, light shield.

[0041] Embodiment: Please refer to Figure 1 and Figure 2 As shown, there is shown a spacing and row spacing control fixture 100 for tunnel construction in an embodiment, which includes a pair of spacing control fixtures 1, and a plurality of positioning holes 12 for connecting steel bars are vertically arranged in the length direction thereof; a plurality of row spacing control fixtures 2, which are evenly distributed and respectively clamped at both ends with a pair of spacing control fixtures 1, and a ranging mechanism 3 for precisely measuring the distance between a pair of spacing control fixtures 1 is further provided on the row spacing control fixture 2.

[0042] In this embodiment, each spacing control fixture 1 includes a pair of clamping plates 111, which are butt-jointed to form a fixing plate 11; a pair of fastening assemblies 14 for fixing a pair of clamping plates 111, and a plurality of positioning holes 12 for connecting steel bars (not shown) are vertically and penetratingly arranged in the length direction of the fixing plate 11.

[0043] In this embodiment, a pair of clamping plates 111 are respectively provided with semi-circular grooves 121 at several corresponding positions. When the pair of clamping plates 111 are butted, the two semi-circular grooves 121 form a positioning hole 12.

[0044] In this embodiment, the positions of several positioning holes 12 are consistent with the designed spacing of several steel bars.

[0045] In this embodiment, a pair of uniformly distributed fixing holes 13 are relatively and penetratingly provided on the side walls of a pair of clamping plates 111, and a fastening assembly 14 passes through the fixing holes 13 to fix the pair of clamping plates 111.

[0046] In this embodiment, as Figure 3 shown, each row spacing control fixture 2 includes a pair of U-shaped clamping members 21; a pair of cross bars 22 respectively connected to the opposite sides of the pair of U-shaped clamping members 21; a threaded sleeve 23 with both ends respectively threadedly connected to the pair of cross bars 22; and a ranging mechanism 3 provided at the top of the U-shaped clamping member 21.

[0047] In this embodiment, the ranging mechanism 3 includes a laser rangefinder 31 connected to the top of any one of the U-shaped clamping members 21; a ranging plate 32 connected to the top of the other U-shaped clamping member 21, and the laser rangefinder 31 obtains real-time measurement data after emitting laser light to the ranging plate 32.

[0048] In this embodiment, as Figure 4 shown, the laser rangefinder 31 includes a housing 311; a laser emission source (not shown) provided in the housing 311; a control button 312 and a display screen 313 installed on the top of the housing 311 and electrically connected to the laser emission source; an emission window 314 provided on one side of the housing 311 facing the ranging plate 32 for the laser emitted by the laser emission source to pass through; a warning lamp 315 provided on the housing 311 and located below the emission window 314; and a charging port 316 provided on the housing 311 and electrically connected to the laser emission source.

[0049] In this embodiment, a light-shielding cover 317 is further provided on the upper part of the emission window 314.

[0050] In this embodiment, the laser rangefinder 31 is electrically connected or communicatively connected to an external control end.

[0051] The characteristics and functions of the present utility model are further understood through the following description.

[0052] The characteristics and functions of the present utility model are further understood through the following description.

[0053] The main technical problem solved by the row and spacing control fixture 100 of this embodiment is that traditional control fixtures can only be measured and installed manually, with low accuracy, prone to deviation, and unable to ensure that the construction meets the requirements. Therefore, this embodiment proposes a row and spacing control fixture 100. The two sides are respectively the outer and inner spacing control fixtures 1. The diameter of the positioning holes 12 on the upper part is the same as the diameter of the steel bars, and the spacing of the positioning holes 12 is the same as the designed spacing of the steel bars. The side is a fixing bolt (i.e., the fastening component 14), which can install the spacing control fixture 1 on the steel bars. The row spacing control fixtures 2 are arranged at intervals in the middle. The two ends are U-shaped fasteners 21. There are cross bars 22 inside the two U-shaped fasteners 21, and the two cross bars 22 on both sides are connected by a threaded sleeve 23. By rotating the threaded sleeve 23, the distance between the two U-shaped fasteners 21 can be extended or shortened. The spacing control fixture 2 can adjust the processing length according to the on-site construction conditions, and the number of row spacing control fixtures 1 can be set according to the length of the spacing control fixture 2. The middle row spacing control fixture 2 has a real-time measurement reminder function. One end is provided with a laser rangefinder 31, and its top is an operation control button 312 and a liquid crystal display screen 313. The upper right part is a laser emission window 314, with a light-shielding cover 317, and the lower part is a warning light 315. The other side is provided with a charging port 316. The set row spacing and allowable error of the steel bars can be input into the laser rangefinder 31. When the threaded sleeve 23 is rotated for adjustment, the warning light 315 lights up red when the allowable distance is not reached, and lights up green when the set distance is reached. And it can be monitored in real time during the construction process, and when the spacing changes, it lights up red to prompt.

[0054] The usage method of the row and spacing control fixture 100 of this embodiment is as follows:

[0055] Step 1: After the initial support of the tunnel invert is accepted as qualified, tie the outer steel bars of the invert, and install the outer spacing control fixture 1 at the same time;

[0056] Step 2: Tie the inner steel bars of the invert, and install the inner spacing control fixture 1 at the same time;

[0057] Step 3: Move the formwork for the invert concrete pouring into place;

[0058] Step 4: Install the row spacing control fixture 2 for the steel bars, turn on the laser rangefinder 31, input the preset distance, rotate the middle threaded sleeve 23 to adjust the distance, control the row spacing of the inner and outer steel bars, and when the warning light turns green, it means the adjustment is in place.

[0059] In summary, through the use of the laser rangefinder and the adjustment of the distance adjustment mechanism, the present utility model can achieve the precise positioning of the invert steel bars, avoid the displacement of the invert steel bars during the concrete pouring process, and ensure that the spacing and row spacing of the invert steel bars meet the design and specification requirements. And it can monitor the steel bar spacing in real time and correct it in time to ensure that the data of the invert steel bars always meet the requirements.

[0060] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model thereby. For those skilled in the art, it should be realized that all the solutions obtained by equivalent substitution and obvious changes made by using the specification and illustrated content of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A clamp for controlling the spacing between inverted arch steel bars for tunnel construction, characterized in that: include: A pair of spacing control fixtures, with a plurality of positioning holes for connecting steel bars arranged vertically in the length direction; A plurality of row spacing control fixtures are evenly distributed and are respectively connected to a pair of spacing control fixtures at both ends, wherein The row spacing control fixture is also provided with a distance measuring mechanism for accurately measuring the distance between a pair of the spacing control fixtures.

2. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 1, characterized in that: Each of the spacing control fixtures comprises: A pair of clamping plates, butted against each other to form a fixed plate; A pair of fastening components for fixing a pair of said card plates, wherein A plurality of positioning holes for connecting steel bars are vertically arranged in the length direction of the fixing plate.

3. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 2, characterized in that: A pair of the clamping plates are provided with semicircular grooves at several corresponding positions respectively, and when the pair of the clamping plates are butted together, the two semicircular grooves form the positioning holes.

4. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 3, characterized in that: The positions of the plurality of positioning holes are consistent with the design spacings of the plurality of steel bars.

5. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 4, characterized in that: A pair of evenly distributed fixing holes are relatively and through-through arranged on the side walls of the pair of the clamping plates, and the fastening assembly passes through the fixing holes to fix the pair of the clamping plates.

6. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 5, characterized in that: Each of the row spacing control fixtures comprises: A pair of U-shaped clamps; A pair of cross bars, respectively connected to opposite sides of a pair of U-shaped clamps; A threaded sleeve, both ends of which are respectively threadedly connected to a pair of the cross bars; and The distance measuring mechanism is arranged on the top of the U-shaped card.

7. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 6, characterized in that: The distance measuring mechanism comprises: A laser rangefinder connected to the top of any of the U-shaped clamps; The distance measuring board is connected to the top of the other U-shaped card. The laser rangefinder obtains real-time measurement data after emitting laser light to the rangefinder board.

8. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 7, characterized in that: The laser rangefinder comprises: case; A laser emission source is disposed in the housing; A control button and a display screen are mounted on the top of the housing and are electrically connected to the laser emission source; An emission window, provided on a side of the housing facing the range-finding plate, for allowing the laser emitted by the laser emission source to pass through; a warning light, disposed on the housing and below the emission window; and A charging port is disposed on the housing and is electrically connected to the laser emission source.

9. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 8, characterized in that: The upper part of the emission window is also provided with a light shield.

10. The inverted arch reinforcement spacing control fixture for tunnel construction according to claim 9, characterized in that: The laser rangefinder is electrically connected or communicatively connected to the external control terminal.

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