CN212931443U - Tunnel control network rearview measuring device - Google Patents
Tunnel control network rearview measuring device Download PDFInfo
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- CN212931443U CN212931443U CN202022197128.5U CN202022197128U CN212931443U CN 212931443 U CN212931443 U CN 212931443U CN 202022197128 U CN202022197128 U CN 202022197128U CN 212931443 U CN212931443 U CN 212931443U
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- steel plate
- forced centering
- tunnel
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Abstract
A tunnel control network rearview measuring device is structurally characterized in that: four corners of the fixed steel plate are provided with fixing holes, the fixed steel plate is fixedly connected to a wall body on one side in the tunnel, two horizontal supporting legs are welded on the upper portion of the fixed steel plate, and two inclined supporting legs are welded on the lower portion of the fixed steel plate; one end of the horizontal support steel plate is provided with a round hole A and is movably connected with the horizontal support through a screw, and the other end of the horizontal support steel plate is fixedly welded with the forced centering tray; the lower surface of the forced centering tray is also welded with two inclined supporting legs, the center of the forced centering tray is provided with a screw hole, and a forced centering bolt is screwed into the screw hole from the lower part of the forced centering tray; the two ends of the oblique supporting steel plate are provided with round holes B and are movably connected with the oblique supporting legs through screws. The beneficial effects of the utility model reside in that: the device avoids the need of searching and clearing point positions during each rearview measurement, and reduces the working time of measuring personnel in the tunnel; the work efficiency and the safety of measuring personnel are improved.
Description
Technical Field
The utility model relates to a tunnel measurement control forces back vision technical field, especially relates to a tunnel control net back vision measuring device.
Background
The wire method tunnel control technology is widely applied to tunnel engineering and shield engineering, is the most effective control method of the tunnel engineering, and the specific method for burying the rear viewpoint of the conventional tunnel is that a hole with the depth of 10cm is drilled on the ground which is monitored to be stable, a rear viewpoint mark is inserted and fixed by cement paste, a foot rest and a prism base are erected on a point position when the method is used, and the method is folded after the rear view is finished and is repeatedly erected when needed. But the slurry is easy to cover, and the searching and cleaning are difficult; the lighting condition in the tunnel is not good, and one person cannot finish the erection of the rear view point; the vehicles on the ground frequently come and go, and have certain influence on the positioning stability; every time, certain errors exist in erection, so that the measurement precision is influenced, and the disadvantage is brought to the measurement work.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a tunnel control network rearview measuring device, which comprises a fixed steel plate (1), a horizontal supporting steel plate (2), an oblique supporting steel plate (3), a forced centering tray (4), a prism bracket (5), a forced centering bolt (6) and a prism (7); the structure is as follows: four corners of the fixed steel plate (1) are respectively provided with a fixed hole (12), the fixed steel plate (1) is fixedly connected to a wall body on one side in the tunnel, two horizontal supporting legs (8) are welded at the upper part of the fixed steel plate (1), and two inclined supporting legs (10) are welded at the lower part of the fixed steel plate (1); one end of the horizontal supporting steel plate (2) is provided with a round hole A (201) and is movably connected with the horizontal supporting leg (8) through a screw, and the other end of the horizontal supporting steel plate (2) is fixedly welded with the forced centering tray (4); the lower surface of the forced centering tray (4) is also welded with two inclined supporting legs (10), the center of the forced centering tray (4) is provided with a screw hole (401), and a forced centering bolt (6) is screwed into the screw hole (401) from the lower part of the forced centering tray (4); and round holes B (301) are formed in the two ends of the oblique supporting steel plate (3) and are movably connected with the oblique supporting legs (10) through screws.
The prism support (5) is provided with a round hole C (501), the round hole C (501) penetrates through the forced centering bolt (6) to enable the prism support (5) to be tightly attached to the forced centering tray (4) and fixed through a prism support fixing nut (12), the prism support is L-shaped, and a prism fixing screw rod (11) is arranged on a stand column on one side of the prism support and is in threaded connection with the prism (7) through the prism support.
The middle part of the oblique supporting steel plate (3) is of a telescopic structure, and the height of the forced centering tray (4) is adjusted by utilizing the flexibility of the oblique supporting steel plate (3) and then fixed by a butterfly bolt (9).
The utility model discloses a use method does: after the device is manufactured and assembled, the device is installed on the inner side wall of a tunnel, the device can be installed on a stable concrete surface through a fixing hole by adopting an expansion bolt, a fixing steel plate can also be directly welded on a steel arch frame, and after the installation is finished, the plane coordinate of a prism on the device is measured by adopting a wire measuring method (if the prism on the device cannot be seen in a measuring instrument, the forced centering tray can be raised or lowered by adjusting a telescopic oblique supporting leg until the prism can be seen). An instrument is erected in front of the prism, the prism of the device is directly viewed in the rear, tunnel measurement work is started, and people do not need to detach the prism after measurement is completed.
The beneficial effects of the utility model reside in that: the utility model avoids the need of searching and clearing points during the network rearview measurement each time, and reduces the working time of the measuring personnel in the tunnel; personnel at the viewpoint after erection are reduced; the working efficiency and the safety of measuring personnel are improved; the concrete summary is four points: the point a is obvious and easy to search; b, no personnel are needed to erect the rear view point again after the installation is finished; the point c is stable, the measurement precision is improved, and the data change is small; and d, errors caused by repeated prism dismounting are reduced, the progress of measurement work in the tunnel is accelerated, and personnel are prevented from staying in the tunnel for a long time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a right side view of the present invention;
fig. 3 is a bottom view of the present invention;
fig. 4 is a bottom view of the forced centering tray of the present invention;
FIG. 5 is a schematic view of the horizontal support steel plate of the present invention;
FIG. 6 is a schematic view of the oblique supporting steel plate of the present invention;
fig. 7 is a schematic view of the prism support of the present invention;
in the figure: 1. the device comprises a fixing steel plate, 2, a horizontal supporting steel plate, 3, an oblique supporting steel plate, 4, a forced centering tray, 5, a prism support, 6, a forced centering bolt, 7, a prism, 8, a horizontal supporting leg, 9, a butterfly bolt, 10, an oblique supporting leg, 11, a prism fixing screw, 12, a fixing hole, 201, a round hole A, 301, a round hole B, 401, a thread hole, 501 and a round hole C.
Detailed Description
Embodiment 1, as shown in the figure, the utility model provides a tunnel control net rear view measuring device, including fixed steel sheet (1), horizontal supporting steel sheet (2), diagonal supporting steel sheet (3), force centering tray (4), prism support (5), force centering bolt (6) and prism (7) to constitute; the method is characterized in that: four corners of the fixed steel plate (1) are respectively provided with a fixed hole (12), the fixed steel plate (1) is fixedly connected to a wall body on one side in the tunnel, two horizontal supporting legs (8) are welded on the upper portion of the fixed steel plate (1), and two inclined supporting legs (10) are welded on the lower portion of the fixed steel plate (1); one end of the horizontal supporting steel plate (2) is provided with a round hole A (201) and is movably connected with the horizontal supporting leg (8) through a screw, and the other end of the horizontal supporting steel plate (2) is fixedly welded with the forced centering tray (4); the lower surface of the forced centering tray (4) is also welded with two inclined supporting legs (10), the center of the forced centering tray (4) is provided with a screw hole (401), and a forced centering bolt (6) is screwed into the screw hole (401) from the lower part of the forced centering tray (4); and round holes B (301) are formed in the two ends of the oblique supporting steel plate (3) and are movably connected with the oblique supporting legs (10) through screws.
The prism support (5) is provided with a round hole C (501), the round hole C (501) penetrates through the forced centering bolt (6) to enable the prism support (5) to be tightly attached to the forced centering tray (4) and fixed through a prism support fixing nut (12), the prism support is L-shaped, and a prism fixing screw rod (11) is arranged on a stand column on one side of the prism support and is in threaded connection with the prism (7) through the prism support.
The middle part of the oblique supporting steel plate (3) is of a telescopic structure, and the height of the forced centering tray (4) is adjusted by utilizing the flexibility of the oblique supporting steel plate (3) and then fixed by a butterfly bolt (9).
The fixed steel plate (1) is fixedly connected with a concrete wall body on one side in the tunnel through fixing holes (12) at four corners of the fixed steel plate and expansion screws.
The prism support (5) is provided with a round hole C (501), the round hole C (501) penetrates through the forced centering bolt (6) to enable the prism support (5) to be tightly attached to the forced centering tray (4) and fixed through a prism support fixing nut (12), the prism support is L-shaped, and a prism fixing screw rod (11) is arranged on a stand column on one side of the prism support and is in threaded connection with the prism (7) through the prism support.
The middle part of the oblique supporting steel plate (3) is of a telescopic structure, and the height of the forced centering tray (4) is adjusted by utilizing the flexibility of the oblique supporting steel plate (3) and then fixed by a butterfly bolt (9).
And the fixed steel plate (1) is fixedly welded with a steel arch on one side in the tunnel.
Claims (5)
1. A tunnel control network rearview measuring device comprises a fixed steel plate (1), a horizontal supporting steel plate (2), an oblique supporting steel plate (3), a forced centering tray (4), a prism bracket (5), a forced centering bolt (6) and a prism (7); the method is characterized in that: four corners of the fixed steel plate (1) are respectively provided with a fixed hole (12), the fixed steel plate (1) is fixedly connected to a wall body on one side in the tunnel, two horizontal supporting legs (8) are welded on the upper portion of the fixed steel plate (1), and two inclined supporting legs (10) are welded on the lower portion of the fixed steel plate (1); one end of the horizontal supporting steel plate (2) is provided with a round hole A (201) and is movably connected with the horizontal supporting leg (8) through a screw, and the other end of the horizontal supporting steel plate (2) is fixedly welded with the forced centering tray (4); the lower surface of the forced centering tray (4) is also welded with two inclined supporting legs (10), the center of the forced centering tray (4) is provided with a screw hole (401), and a centering bolt (6) is screwed into the screw hole (401) from the lower part of the forced centering tray (4); and round holes B (301) are formed in the two ends of the oblique supporting steel plate (3) and are movably connected with the oblique supporting legs (10) through screws.
2. The tunnel control network rearview measurement device of claim 1, wherein: the prism support (5) is provided with a round hole C (501), and the round hole C (501) penetrates through the forced centering bolt (6) to enable the prism support (5) to be tightly attached to the forced centering tray (4) and fixed through a nut.
3. The tunnel control network rearview measurement device of claim 1, wherein: the middle part of the oblique supporting steel plate (3) is of a telescopic structure, and the height of the forced centering tray (4) is adjusted by utilizing the flexibility of the oblique supporting steel plate (3) and then fixed by a butterfly bolt (9).
4. The tunnel control network rearview measurement device of claim 1, wherein: the fixed steel plate (1) is fixedly connected with a concrete wall body on one side in the tunnel through fixing holes (12) at four corners of the fixed steel plate and expansion screws.
5. The tunnel control network rearview measurement device of claim 1, wherein: and the fixed steel plate (1) is fixedly welded with a steel arch on one side in the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022197128.5U CN212931443U (en) | 2020-09-30 | 2020-09-30 | Tunnel control network rearview measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022197128.5U CN212931443U (en) | 2020-09-30 | 2020-09-30 | Tunnel control network rearview measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212931443U true CN212931443U (en) | 2021-04-09 |
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ID=75310880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022197128.5U Active CN212931443U (en) | 2020-09-30 | 2020-09-30 | Tunnel control network rearview measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212931443U (en) |
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2020
- 2020-09-30 CN CN202022197128.5U patent/CN212931443U/en active Active
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