Diversion shaft guide hole excavation precision measuring system

Abstract

The invention provides a water diversion shaft guide hole excavation precision measuring system which comprises a measuring machine body, the measuring machine body is supported by a mounting table and a fixing mechanism, and an angle adjusting mechanism is arranged between the measuring machine body and the mounting table; the fixing mechanism comprises a plurality of racks connected to the lower side of the mounting table, a supporting plate, a clamping block and a sharp corner brace, a supporting column is fixed to the center of the bottom of the mounting table and slidably sleeved with a mounting sleeve, a plurality of connecting pieces are horizontally connected to the peripheral side of the mounting sleeve, supporting rods are slidably sleeved with the connecting pieces, and one ends of the supporting rods are fixedly connected to the racks; the supporting plate is inserted into the rack in a sliding mode and connected and fixed through a clamping block and a bolt, and a sharp corner brace making contact with the ground is arranged at the bottom of the supporting plate. The device has the advantages of being excellent in stability performance, good in fixing effect, convenient to accurately adjust the angle and efficient in measurement.

Description

Technical Field

[0001] This invention relates to the field of total station technology, and more specifically to a system for measuring the accuracy of pilot hole excavation in water diversion shafts. Background Technology

[0002] A total station, also known as a total station electronic distance measuring instrument, is a high-tech surveying instrument integrating optics, mechanics, and electronics. It is a surveying instrument system that integrates the functions of measuring horizontal angles, vertical angles, distances (slope distances and horizontal distances), and elevation differences. Because it can complete all the measurement work at a station with a single instrument setup, it is called a total station. It is widely used in precision engineering surveying or deformation monitoring fields such as large-scale above-ground construction and underground tunnel construction. Compared with optical theodolites, electronic theodolites replace the optical scale with a photoelectric scanning scale, and replace manual optical micrometer readings with automatic recording and display of readings, simplifying angle measurement operations and avoiding reading errors.

[0003] To address the issues of poor stability, inadequate fixation, and susceptibility to wobbling and angular shifts in existing total stations that affect measurement accuracy, current technologies employ telescopic support legs. However, these methods still result in unsatisfactory stability. Furthermore, during actual measurements, when the surveying mirror needs to be rotated to change its angle or direction, the connecting device must be manually rotated to drive the mirror's rotation. Precise angle adjustments are difficult to achieve manually, leading to reduced overall efficiency of the total station. Summary of the Invention

[0004] The purpose of this invention is to provide a water diversion shaft guide hole excavation accuracy measurement system with excellent stability, good fixing effect, easy and precise angle adjustment, and efficient measurement.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A system for measuring the accuracy of pilot hole excavation in a water diversion shaft includes a measuring body, which is supported by a mounting platform and a fixing mechanism, and an angle adjustment mechanism is provided between the measuring body and the mounting platform. The fixing mechanism includes several frames, support plates, clamping blocks, and corner braces connected to the lower side of the mounting platform. A support column is fixed at the center of the bottom of the mounting platform. A mounting sleeve is slidably sleeved on the support column. Several connecting parts are horizontally connected around the mounting sleeve. Support rods are slidably sleeved inside the connecting parts. One end of the support rod is connected and fixed to the frame. The support plate is slidably inserted into the frame and fixed by clamping blocks and bolts. The bottom of the support plate is provided with corner braces that contact the ground. The angle adjustment mechanism includes a built-in drive motor, gear transmission assembly, and turntable on the mounting platform. The measuring machine body is fixed to the turntable via a support block and the turntable. The drive motor drives the gear transmission assembly to rotate the turntable.

[0006] Furthermore, the support plate is concave, and symmetrical grooves are opened on the side wall of the support plate. The fixing mechanism also includes a storage component, a mounting plate, and positioning bolts. The storage component includes a prism plate and a square plate. The square plate is slidably connected to the groove of the support plate through a horizontal axis, and the prism plate is axially connected to the inner bottom of the support plate. The mounting plate is connected and fixed to the lower side of the prism plate, and positioning bolts can be inserted into the mounting plate.

[0007] Furthermore, the gear assembly includes a driving gear and driven gear one and driven gear two on both sides. Driven gear one and driven gear two mesh with the driving gear respectively. Driven gear one and driven gear two have rotating shafts fixed at their centers respectively, and the rotating shafts drive the turntable to rotate.

[0008] Compared with the prior art, the present invention has the following advantages: This invention provides a precision measurement system for the excavation of guide holes in water diversion shafts. It features excellent stability, superior fixation, easy and precise angle adjustment, and efficient measurement.

[0009] Specifically, by setting up a support plate and adjusting it inside the frame to change its length, a clamping assembly is used for positioning and fixing. Pointed braces are used to improve stability by reducing the contact area with the ground. Depending on the ground conditions, a storage assembly can slide inside the support plate for storage and deployment. The cooperation between the mounting plate and the positioning screw allows the total station to stand and be used on soft ground, making it suitable for various terrains and improving its utilization efficiency. By activating the drive motor installed inside the mounting platform, the driving gear rotates, which in turn drives driven gears one and two, causing the rotating shaft to rotate and the turntable to rotate. With the cooperation of the support blocks, the measuring body can be precisely adjusted in angle, improving measurement accuracy and further enhancing the overall efficiency of the total station. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0011] Figure 2 This is a schematic diagram of the fixing mechanism of the present invention.

[0012] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0013] Figure 4 This is a schematic diagram of the angle adjustment mechanism of the present invention.

[0014] Reference numerals: 1. Mounting platform; 11. Support column; 12. Mounting sleeve; 13. Connector; 14. Support rod; 2. Measuring machine body; 3. Turntable; 4. Fixing mechanism; 41. Frame; 42. Support plate; 43. Clamping block; 44. Angle brace; 45. Storage assembly; 46. Mounting plate; 47. Positioning screw; 5. Angle adjustment mechanism; 51. Driving gear; 52. Driven gear one; 53. Driven gear two; 54. Rotating shaft; 55. Turntable; 56. Support block. Detailed Implementation

[0015] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a water diversion shaft guide hole excavation accuracy measurement system includes a measuring body 2, which is supported by a mounting platform 1 and a fixing mechanism 4. An angle adjustment mechanism 5 is provided between the measuring body 2 and the mounting platform 1.

[0017] like Figure 2 As shown, the fixing mechanism 4 includes three equidistantly distributed frames 41, a support plate 42, a clamping block 43, and a corner brace 44 connected to the lower side of the mounting platform 1. The three frames 41 are axially connected to the periphery of the mounting platform 1 and can rotate 180 degrees outside the mounting platform 1. The frames 41 have an internal hollow structure. The support plate 42 is slidably inserted into the frame 41 and fixed by the clamping block 43 and bolts. The bottom of the support plate 42 is provided with a corner brace 44 that contacts the ground. The bottom center of the mounting platform 1 is fixed with a support column 11. The mounting sleeve 12 is slidably sleeved on the support column 11. Three equidistantly distributed connectors 13 are horizontally connected around the periphery of the mounting sleeve 12. Support rods 14 are slidably sleeved inside the connectors 13. The support rods 14 correspond one-to-one with the frames 41 and one end of the support rods 14 is connected and fixed to the frame 41. The mounting sleeve 12 allows for the storage of the entire system. When the mounting sleeve 12 slides upward, it causes the support rod 14 inside the connector 13 and the frame 41 to retract inward. Conversely, when the mounting sleeve 12 slides downward, it causes the support rod 14 inside the connector 13 and the frame 41 to open outward. The fixing mechanism 4 is height-adjustable. The height is adjusted by sliding the support plate 42 within the frame 41 and is fixed by the clamping block 43. The pointed corner brace 44 further improves its stability by reducing the contact area with the ground, which is beneficial for the use of the total station on soft ground and makes it suitable for more diverse terrains.

[0018] like Figure 3As shown, the support plate 42 is concave, with the concave facing outward. Two sliding grooves are symmetrically opened on the side wall of the support plate 42. The fixing mechanism 4 also includes a storage component 45, a mounting plate 46, and a positioning bolt 47. The storage component 45 includes a prism plate and a square plate. The square plate is slidably connected to the sliding groove of the support plate 42 via a horizontal axis. The prism plate is axially connected to the inner bottom of the support plate 42. The mounting plate 46 is connected and fixed to the lower side of the prism plate. The positioning bolt 47 can be inserted into the mounting plate 46. During the opening process, the support rod 14 extends outward to the connector 13 and is fixed by bolts. When the fixing mechanism 4 is stored, the storage component 45, including the prism plate and the square plate, rotates into the recessed support plate 42 and is stored therein; when the fixing mechanism 4 is opened, the storage component 45 opens outward from inside the support plate 42. At this time, the prism plate is horizontal, and the positioning bolt 47 is inserted into the mounting plate 46 and abuts against the hard ground or extends into the soft ground, which plays a further stabilizing role. At this time, the square plate is tilted and overlapped on the prism plate to further fix the entire structure.

[0019] like Figure 4 As shown, the angle adjustment mechanism 5 includes a built-in drive motor on the mounting platform, a gear transmission assembly, and a turntable 55. The measuring machine body 2 is connected and fixed to the turntable 55 via a support block 56 and the turntable 3. The drive motor drives the gear transmission assembly, thereby causing the turntable 55 to rotate. The gear assembly includes a driving gear 51 and driven gears 52 and 53 on both sides. Driven gears 52 and 53 mesh with the driving gear 51, and rotating shafts 54 are fixed to the centers of driven gears 52 and 53, respectively. The rotating shafts 54 drive the turntable 55 to rotate. Because it is driven by a drive motor, rather than manually rotated, it can achieve the effect of precise angle adjustment.

[0020] The working principle of this invention is as follows: First, the height of the support plate 42 is adjusted inside the frame 41, and it is fixed by the clamping block 43. Then, the stability of the support is improved by using the pointed corner brace 44 to reduce the contact area with the ground. Depending on the ground conditions, the storage component 45 is opened from inside the support plate 42, and the support is further stabilized by the cooperation between the mounting plate 46 and the positioning screw 47. Second, the drive motor installed inside the mounting platform 1 is started, which drives the drive gear 51 to rotate. Through meshing transmission, the driven gear 1 52 and driven gear 2 53 are driven to rotate, which in turn drives the rotating shaft 54 ​​to rotate, causing the turntable 55 to rotate. With the cooperation of the support block 56, the measuring body 2 is precisely adjusted in angle, thereby improving the accuracy of the measurement.

[0021] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the concept of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A system for measuring the accuracy of pilot hole excavation in a water diversion shaft, comprising a measuring machine body, characterized in that: The measuring machine body is supported by a mounting platform and a fixing mechanism, and an angle adjustment mechanism is provided between the measuring machine body and the mounting platform; The fixing mechanism includes several frames, support plates, clamping blocks, and corner braces connected to the lower side of the mounting platform. A support column is fixed at the center of the bottom of the mounting platform. A mounting sleeve is slidably sleeved on the support column. Several connecting parts are horizontally connected around the mounting sleeve. Support rods are slidably sleeved inside the connecting parts. One end of the support rod is connected and fixed to the frame. The support plate is slidably inserted into the frame and fixed by clamping blocks and bolts. The bottom of the support plate is provided with corner braces that contact the ground. The angle adjustment mechanism includes a built-in drive motor, gear transmission assembly, and turntable on the mounting platform. The measuring machine body is fixed to the turntable via a support block and the turntable. The drive motor drives the gear transmission assembly to rotate the turntable.

2. The water diversion shaft pilot hole excavation accuracy measurement system according to claim 1, characterized in that: The support plate is concave, and symmetrical grooves are opened on the side wall of the support plate. The fixing mechanism also includes a storage component, a mounting plate and positioning bolts. The storage component includes a prism plate and a square plate. The square plate is slidably connected to the groove of the support plate through a horizontal axis, and the prism plate is axially connected to the inner bottom of the support plate. The mounting plate is connected and fixed to the lower side of the prism plate, and positioning bolts can be inserted into the mounting plate.

3. The water diversion shaft pilot hole excavation accuracy measurement system according to claim 1, characterized in that: The gear assembly includes a driving gear and driven gear one and driven gear two on both sides. Driven gear one and driven gear two mesh with the driving gear respectively. Driven gear one and driven gear two have rotating shafts fixed at their centers, and the rotating shafts drive the turntable to rotate.

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