CN216558970U - Scalable compulsory centering measuring device of small cross section tunnel - Google Patents
Scalable compulsory centering measuring device of small cross section tunnel Download PDFInfo
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- CN216558970U CN216558970U CN202123400500.9U CN202123400500U CN216558970U CN 216558970 U CN216558970 U CN 216558970U CN 202123400500 U CN202123400500 U CN 202123400500U CN 216558970 U CN216558970 U CN 216558970U
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- connecting plate
- forced centering
- fixedly connected
- measuring device
- inclined support
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Abstract
A telescopic forced centering measuring device for a small-section tunnel; the structure is as follows: four fixing holes are symmetrically formed in the periphery of the connecting plate, the connecting plate is fixedly connected with the tunnel side wall through expansion bolts, two sleeves are vertically and fixedly connected to the upper portion of the connecting plate, pin holes A are formed in the upper portions of the sleeves, two telescopic rods are placed into the two sleeves respectively, the pin holes B formed in the telescopic rods are aligned with the pin holes A, and a bolt is inserted for limiting; the tail ends of the two telescopic rods are fixedly connected with a forced centering disc, and a connecting bolt is fixedly arranged at the central point of the forced centering disc; the upper end of the inclined support is fixedly connected with the sleeve, and the lower end of the inclined support is fixedly connected with the connecting plate. The beneficial effects of the invention are as follows: the device is arranged at a measurement point position, so that the point position is convenient to find and stable, the scalability of the device avoids the intervention of personnel and engineering vehicles on the point position, the side refraction influence is reduced during measurement, and the measurement precision is improved; the work efficiency and the safety of measuring personnel are improved, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of tunnel control and measurement, in particular to a telescopic forced centering measuring device for a small-section tunnel.
Background
The lead method tunnel control technology is widely applied to tunnel engineering and shield engineering, and is the most effective control method of the tunnel engineering. The point location is easily covered by mud and the like, and the point location is difficult to find and clean; the lighting condition in the tunnel is poor, and one person cannot erect the tunnel at a point position; the vehicles on the ground frequently come and go, and have certain influence on the positioning stability; the traditional point location is close to the side wall of the tunnel, the field in the tunnel is narrow, the point location is limited, the sight line is close to the wall of the tunnel, and the horizontal angle is influenced by side refraction, so that the measurement precision is influenced, and the measurement work is unfavorable.
Disclosure of Invention
In order to overcome the defects, the invention provides a telescopic forced centering measuring device for a small-section tunnel; it has the following characteristics: the device draws materials on site, is convenient to process, is convenient to find when being installed at a measuring point position, is stable in point position, can be extended and retracted to avoid the interference of personnel and engineering vehicles on the point position, and reduces the side refraction influence during measurement.
The following technical scheme is adopted; a telescopic forced centering measuring device for a small-section tunnel comprises a connecting plate (1), a sleeve (2), an inclined support (3), a bolt (4), a telescopic rod (5) and a forced centering disc (6); the structure is as follows: four fixing holes (101) are symmetrically formed in the periphery of the connecting plate (1), the connecting plate (1) is fixedly connected with the side wall of the tunnel through expansion bolts, and the surface of the side wall of the tunnel is perpendicular to the horizontal plane; the upper part of the connecting plate (1) is vertically and fixedly connected with two sleeves (2), and the two sleeves (2) are parallel to each other and are positioned on the same plane; a pin hole A (201) is formed above the sleeve (2), two telescopic rods (5) are respectively placed into the two sleeves (2), a pin hole B (501) formed in each telescopic rod (5) is aligned to the pin hole A (201), and a bolt (4) is inserted for limiting; the tail ends of the two telescopic rods (5) are fixedly connected with a forced centering disc (6), and a connecting bolt (7) is fixedly arranged at the central point of the forced centering disc (6); the upper end of the inclined support (3) is fixedly connected with the sleeve (2), and the lower end of the inclined support is fixedly connected with the connecting plate (1).
Furthermore, two pin holes B (501) are formed in the telescopic rod (5).
Furthermore, the connecting plate (1), the sleeve (2), the inclined support (3) and the telescopic rod (5) are all made of carbon steel or stainless steel.
Furthermore, two sleeves (2) are vertically and fixedly welded on the upper part of the connecting plate (1).
Furthermore, the upper end of the inclined support (3) is welded and fixed with the sleeve (2), and the lower end of the inclined support is welded and fixed with the connecting plate (1).
Furthermore, the tail ends of the two telescopic rods (5) are fixedly welded with a forced centering disc (6).
Further, the sleeve (2) is a steel pipe with the inner diameter of 5cm, and the telescopic rod (5) is a steel pipe with the outer diameter of 5 cm.
Compared with the prior art, the invention has the following advantages: the device has the advantages that materials are taken on site, the processing is convenient, the device is installed at a measurement point position to be conveniently found, the point position is stable, the scalability of the device avoids the interference of personnel and engineering vehicles on the point position, the side refraction influence is reduced during the measurement, and the precision of measurement data is improved; the invention is put into use, reduces the erection personnel, shortens the working time of the measuring personnel in the tunnel, improves the working efficiency and the safety of the measuring personnel and reduces the cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic view of the telescopic rod and the forced centering plate of the present invention;
FIG. 5 is a schematic view of the latch of the present invention;
in the figure, the device comprises a connecting plate 1, a connecting plate 101, a fixing hole 2, a sleeve 201, pin holes A and 3, an inclined support 4, a bolt 5, a telescopic rod 501, pin holes B and 6, a forced centering disc 7 and a connecting bolt.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in the figure: a telescopic forced centering measuring device for a small-section tunnel comprises a connecting plate (1), a sleeve (2), an inclined support (3), a bolt (4), a telescopic rod (5) and a forced centering disc (6); the structure is as follows: four fixing holes (101) are symmetrically formed in the periphery of the connecting plate (1), the connecting plate (1) is fixedly connected with the side wall of the tunnel through expansion bolts, and the surface of the side wall of the tunnel is perpendicular to the horizontal plane; the upper part of the connecting plate (1) is vertically and fixedly connected with two sleeves (2), and the two sleeves (2) are parallel to each other and are positioned on the same plane; a pin hole A (201) is formed above the sleeve (2), two telescopic rods (5) are respectively placed into the two sleeves (2), a pin hole B (501) formed in each telescopic rod (5) is aligned to the pin hole A (201), and a bolt (4) is inserted for limiting; the tail ends of the two telescopic rods (5) are fixedly connected with a forced centering disc (6), and a connecting bolt (7) is fixedly arranged at the central point of the forced centering disc (6); the upper end of the inclined support (3) is fixedly connected with the sleeve (2), and the lower end of the inclined support is fixedly connected with the connecting plate (1).
Preferably, the telescopic rod (5) is provided with two pin holes B (501); if the telescopic rod (5) is provided with only one pin hole B (501), after the measurement work is finished, the telescopic rod (5) is pushed into the sleeve (2) integrally, and the bolt (4) needs to be stored separately.
Preferably, the connecting plate (1), the sleeve (2), the inclined support (3) and the telescopic rod (5) are all made of carbon steel or stainless steel; if the parts are made of carbon steel, the surfaces of the parts are coated with antirust paint.
Preferably, two sleeves (2) are vertically and fixedly welded on the upper part of the connecting plate (1).
Preferably, the upper end of the inclined support (3) is welded and fixed with the sleeve (2), and the lower end of the inclined support is welded and fixed with the connecting plate (1).
Preferably, the tail ends of the two telescopic rods (5) are fixedly welded with forced centering discs (6).
Preferably, the sleeve (2) is a steel pipe with an inner diameter of 5cm, and the telescopic rod (5) is a steel pipe with an outer diameter of 5 cm.
The using method of the invention comprises the following steps: firstly, treating the surface of a tunnel side wall needing to be erected to enable the surface of the tunnel side wall to be vertical to a horizontal plane, then attaching a connecting plate (1) of the device to the surface of the tunnel side wall, marking the positions of the four fixing holes (101) in one-to-one correspondence, punching the marking positions one by one, placing an expansion bolt after punching, and enabling a screw rod of the expansion bolt to penetrate into the fixing holes (101) and to be screwed and fixed through a nut to finish the installation of the device; then the total station is placed on a forced centering disc (6) and is fixedly screwed with the forced centering disc through a connecting bolt (7); an adjustable prism support is arranged at the upper point position, and a prism is arranged; leveling the prism and the total station respectively, and carrying out measurement after leveling is finished; after the measurement is completed, the prism and the total station are respectively taken down, the bolt (4) is pulled out, the telescopic rod (5) is integrally pushed into the sleeve (2), and then the pin hole B (501) at the tail end of the telescopic rod (5) is aligned with the pin hole A (201) and the bolt (4) is inserted.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A telescopic forced centering measuring device for a small-section tunnel comprises a connecting plate (1), a sleeve (2), an inclined support (3), a bolt (4), a telescopic rod (5) and a forced centering disc (6); the method is characterized in that: four fixing holes (101) are symmetrically formed in the periphery of the connecting plate (1), the connecting plate (1) is fixedly connected with the side wall of the tunnel through expansion bolts, and the surface of the side wall of the tunnel is perpendicular to the horizontal plane; the upper part of the connecting plate (1) is vertically and fixedly connected with two sleeves (2), and the two sleeves (2) are parallel to each other and are positioned on the same plane; a pin hole A (201) is formed above the sleeve (2), two telescopic rods (5) are respectively placed into the two sleeves (2), a pin hole B (501) formed in each telescopic rod (5) is aligned to the pin hole A (201), and a bolt (4) is inserted for limiting; the tail ends of the two telescopic rods (5) are fixedly connected with a forced centering disc (6), and a connecting bolt (7) is fixedly arranged at the central point of the forced centering disc (6); the upper end of the inclined support (3) is fixedly connected with the sleeve (2), and the lower end of the inclined support is fixedly connected with the connecting plate (1).
2. The retractable forced centering measuring device for the small-section tunnel according to claim 1, wherein: two pin holes B (501) are formed in the telescopic rod (5).
3. The retractable forced centering measuring device for the small-section tunnel according to claim 1, wherein: the connecting plate (1), the sleeve (2), the inclined support (3) and the telescopic rod (5) are all made of carbon steel or stainless steel.
4. The retractable forced centering measuring device for the small-section tunnel according to claim 3, wherein: two sleeves (2) are vertically and fixedly welded on the upper part of the connecting plate (1).
5. The retractable forced centering measuring device for the small-section tunnel according to claim 3, wherein: the upper end of the inclined support (3) is welded and fixed with the sleeve (2), and the lower end of the inclined support is welded and fixed with the connecting plate (1).
6. The retractable forced centering measuring device for the small-section tunnel according to claim 3, wherein: the tail ends of the two telescopic rods (5) are fixedly welded with forced centering discs (6).
7. The retractable forced centering measuring device for the small-section tunnel according to claim 3, wherein: the sleeve (2) is a steel pipe with the inner diameter of 5cm, and the telescopic rod (5) is a steel pipe with the outer diameter of 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123400500.9U CN216558970U (en) | 2021-12-31 | 2021-12-31 | Scalable compulsory centering measuring device of small cross section tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123400500.9U CN216558970U (en) | 2021-12-31 | 2021-12-31 | Scalable compulsory centering measuring device of small cross section tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216558970U true CN216558970U (en) | 2022-05-17 |
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ID=81557860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123400500.9U Active CN216558970U (en) | 2021-12-31 | 2021-12-31 | Scalable compulsory centering measuring device of small cross section tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216558970U (en) |
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2021
- 2021-12-31 CN CN202123400500.9U patent/CN216558970U/en active Active
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