Handle base plate and alignment device of tunnel handheld scanner

Abstract

The utility model discloses a handle base plate and alignment device of a tunnel handheld scanner, which comprises a mounting plate, three triangular positioning tables are arranged close to the middle of the mounting plate, the three triangular positioning tables can be clamped into three positioning holes in the bottom of a handle base of the scanner, and screw holes are formed in the centers of the three triangular positioning tables. The mounting plate is fixedly connected to a handle base of the scanner through screws penetrating through the screw holes, and a control point positioning part is arranged in the middle of the front end of the mounting plate. The mounting plate is mounted at the bottom of the handle of the handheld scanner, and the control point positioning part is arranged on the mounting plate, so that when the handheld scanner is used, the control point positioning part is positioned to a control point, alignment control is simple, accurate positioning of data of the control point can be accurately realized, and spatial data acquisition of the control point is more accurate; finally, the tunnel measurement model is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of tunnel hand-held scanner auxiliary equipment technical field, specifically a kind of handle base plate of tunnel hand-held scanner is aligned with device. BACKGROUND

[0002] At present in tunnel, usually adopt law, Riegl, Trimble and other frame station type three-dimensional laser scanner to tunnel section is scanned and measured, according to the tunnel three-dimensional model established according to the large amount of point cloud data collected, according to the model of scanning measurement and design section size are compared, realize the accurate judgment of tunnel section size, but its instrument is relatively cumbersome, it is inconvenient to carry, and it is greatly interfered by tunnel construction operation, generally at least 2 people, and scanning area needs to stop work, without construction equipment and personnel passage, scanning measurement operation can be carried out, operation efficiency needs to be improved;While conventional hand-held three-dimensional laser scanner is flexible and convenient, light and portable, and operation efficiency is high, but due to the poor environmental conditions in tunnel scene, the size of the bottom alignment device of hand-held three-dimensional laser scanner is large, and the design is unreasonable, there are problems such as difficult to align control points on tunnel curved wall, large error, insufficient measurement accuracy, and currently there is lack of application. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a kind of handle base plate of tunnel hand-held scanner is aligned with device, can realize that hand-held scanner is easy to align control point, so that the data of measurement control point is more accurate.

[0004] The technical scheme adopted by the utility model is: a kind of handle base plate of tunnel hand-held scanner is aligned with device, including mounting plate, three triangular positioning tables are arranged in the middle of mounting plate, three triangular positioning tables can be clamped into the three positioning holes of the bottom of the handle base of scanner, the center of three triangular positioning tables is provided with screw hole, mounting plate is fixedly connected on the handle base of scanner by screw passing through screw hole, control point positioning part is arranged in the middle of the front end of mounting plate.

[0005] Further, the control point positioning part is an equilateral triangular cross-section structure, one of the sharp parts faces the front, and a positioning line is arranged on the upper surface of the mounting plate, the positioning line coincides with the front side sharp part of the control point positioning part in the front-back direction.

[0006] Further, the mounting plate is provided with symmetrical eight-shaped slope surfaces on the left and right sides.

[0007] Further, three supporting tables are arranged on the bottom of the mounting plate.

[0008] Furthermore, the mounting plate is provided with a first weight reduction hole and a second weight reduction hole, which are located at the front and rear of the scanner handle base connection, respectively, and are arranged symmetrically on the left and right sides of the neutral surface of the mounting plate.

[0009] Furthermore, stepped grooves are provided at both the upper and lower parts of the aforementioned screw holes.

[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model installs an mounting plate at the bottom of the handle of a handheld scanner, and sets a control point positioning part on the mounting plate. When in use, the control point positioning part is positioned to the control point, and the alignment control is simple. This enables precise positioning of the control point data, making the spatial data acquisition of the control point more accurate, reducing errors, and ultimately enabling a more accurate tunnel measurement model. Attached Figure Description

[0011] Fig. 1 A top view of the handle base plate and alignment device of a handheld tunnel scanner.

[0012] Fig. 2 A bottom view of the handle base plate and alignment device of a handheld tunnel scanner.

[0013] Fig. 3 This is a schematic diagram of the mounting plate installed on the handle base. Detailed Implementation

[0014] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1: As Figs. 1-3 As shown, a handle base plate that also serves as an alignment device for a handheld tunnel scanner includes a mounting plate 1. Three triangular positioning platforms 2 are located near the center of the mounting plate 1. These platforms 2 can be inserted into three positioning holes at the bottom of the scanner's handle base 4. Screw holes 3 are located at the centers of the three triangular positioning platforms 2. The mounting plate 1 is fixedly connected to the handle base 4 by screws 10 passing through the screw holes 3. A control point positioning part 5 is located at the center of the front end of the mounting plate 1. By installing a mounting plate at the bottom of the handheld scanner's handle, and setting a control point positioning part on the mounting plate, the control point positioning part can be positioned at a control point during use, thereby achieving precise positioning of the control point data. This results in more accurate spatial data acquisition of the control point, ultimately leading to a more accurate tunnel measurement model.

[0016] In order to conveniently point to the location, the control point positioning part 5 is an equilateral triangular cross section structure, one of the tips is towards the front, the positioning line 6 is arranged on the upper surface side of the mounting plate 1 near the front end, the positioning line 6 is coincided with the front side tip of the control point positioning part 5 in the front and back direction, the triangular cross section structure is convenient for pointing, the direction is controlled through the positioning line, the control point positioning part is arranged in the direction, and the measurement data accuracy is more favorable to improve.

[0017] In order to avoid interference pointing, the mounting plate 1 is provided with symmetrical eight-shaped slope surfaces 11 on the left and right sides near the front end, the slope surface structure reduces the interference space structure of the front end of the mounting plate, and is more favorable to operation pointing.

[0018] In order to conveniently place on the ground to make the instrument stationary and prepare for measurement, three supporting tables 7 are arranged on the bottom of the mounting plate 1, one of the supporting tables 7 is located on the front side center of the mounting plate 1, and the other two supporting tables 7 are located on the two sides of the rear end of the mounting plate 1, the three-point suspension support is stable when the ground is slightly uneven, and the data scanned by the scanner is more accurate.

[0019] In order to reduce the weight and facilitate movement, the mounting plate 1 is provided with a first weight reduction hole 8 and a second weight reduction hole 9, the first weight reduction hole 8 and the second weight reduction hole 9 are respectively located at the front and back of the handle base 4 connection, the first weight reduction hole 8 and the second weight reduction hole 9 are arranged symmetrically on the left and right sides of the neutral plane of the mounting plate 1, two weight reduction holes are arranged, the weight of the scanning equipment can be greatly reduced under the condition that the supporting stability of the mounting plate is not affected, and the operation and movement are more favorable.

[0020] The screw hole 3 is provided with a stepped groove 12 on the upper and lower parts, the stepped groove is arranged, the screw head is sunk into the stepped groove, the exposed structure is more favorable to be reduced, the three supporting tables are more favorable to be supported, the screw 10 adopts a straight screw, the head part is hinged with a semicircular ring 13, the screw is locked through the rotation of the semicircular ring, the operation is more convenient, and when not in use, the screw is rotated to the horizontal position, so that the supporting table support is avoided.

[0021] In summary, the utility model patent reasonably improves and designs the conventional handheld scanner alignment device, reasonably designs a new handle base plate combined with an alignment device according to the common tunnel curved wall radius, so as to realize accurate positioning of the control point arranged on the tunnel curved wall, effectively guarantee the measurement accuracy, and also sufficiently reduce the weight, so that the handheld laser scanner is more light and portable, and the high-precision scanning measurement application of the handheld laser scanner in the tunnel scene is realized.

[0022] The handle base plate of the hand-held scanner is used as an alignment device, which is designed according to the tunnel design, the setting of the control point coordinates on the curved wall at a certain height from the ground, and the actual situation that the control point coordinates are not easy to be damaged, in order to improve the positioning accuracy of the control point, and to ensure that the alignment device is closely attached to the curved wall surface, and the control point positioning part is accurately positioned in a point-to-point manner, and the control point coordinate collection accuracy is ensured. When in use, the mounting plate 1 (including the alignment device) is fixedly connected to the handle base of the hand-held scanner through the screw hole by means of the screw, then the hand-held scanner is placed above the instrument protection box or on a relatively flat concrete ground, the machine is started and kept for at least 1 minute, after the machine is started and the initialization is completed, the mobile phone and the scanning instrument are connected through Bluetooth, one person holds the handle to hold the scanner, the other hand holds the mobile phone, and the scanning and measurement of the tunnel section in the scanning and measurement area are started. The control points are arranged at intervals of not more than 10 m in length on the left and right sides of the tunnel along the longitudinal direction of the tunnel, and the control point coordinate information is measured and recorded in time during the construction process along with the advancement of the working face. The measurement personnel can walk along the two sides of the tunnel in a "U" shape, and the scanning and measurement are carried out by walking in a uniform and not violent manner, when the measurement personnel walks to a control point, the positioning line 6 is attached to the preset control point cross line, then the front side of the control point positioning part 5 is slightly adjusted to coincide with the cross line, the control point coordinate collection is clicked on the mobile phone or the control point coordinate collection button of the hand-held scanner is pressed, then the measurement personnel continues to walk to the next control point position, until the walking along the planned path in the range is completed, and the control point coordinate collection is completed, and the field surveying and mapping work is completed, and subsequent data processing work is carried out.

[0023] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A handle base plate that also serves as an alignment device for a handheld tunnel scanner, characterized in that: The mounting plate (1) has three triangular positioning platforms (2) near its center. The three triangular positioning platforms (2) can be inserted into the three positioning holes at the bottom of the scanner handle base (4). The three triangular positioning platforms (2) have screw holes (3) in their centers. The mounting plate (1) is connected and fixed to the handle base (4) by screws (10) passing through the screw holes (3). The mounting plate (1) has a control point positioning part (5) in the middle of its front end.

2. The handle base plate and alignment device of a handheld tunnel scanner according to claim 1, characterized in that: The control point positioning part (5) has an equilateral triangular cross-section structure, with one of its pointed parts facing directly forward. A positioning line (6) is provided on the upper surface of the mounting plate (1) near the front end. The positioning line (6) coincides with the front pointed part of the control point positioning part (5) in the front-back direction.

3. The handle base plate and alignment device of a handheld tunnel scanner according to claim 1 or 2, characterized in that: The mounting plate (1) has symmetrical V-shaped slopes (11) on the front left and right sides.

4. The handle base plate and alignment device of a handheld tunnel scanner according to claim 2, characterized in that: The mounting plate (1) has three support platforms (7) at its bottom.

5. The handle base plate and alignment device of a handheld tunnel scanner according to claim 1, characterized in that: The mounting plate (1) is provided with a first weight reduction hole (8) and a second weight reduction hole (9). The first weight reduction hole (8) and the second weight reduction hole (9) are located at the front and rear of the connection of the scanner handle base (4). The first weight reduction hole (8) and the second weight reduction hole (9) are arranged symmetrically on the left and right sides of the neutral surface of the mounting plate (1).

6. The handle base plate and alignment device of a handheld tunnel scanner according to claim 1, characterized in that: The screw hole (3) has stepped grooves (12) on both the upper and lower parts.

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