An aid for laser rangefinder measurements

Abstract

An auxiliary device for laser range finder measurement, including inverted L type square steel pipe, a type square steel pipe, rotating support and reflector, two inverted L type square steel pipe are fastened at the both sides of the pier respectively through fastening bolt, the top horizontal square steel pipe of inverted L type square steel pipe is suspended above the top of the pier, the a type square steel pipe is movably inserted in the top horizontal square steel pipe of both sides, the bolt hole is arranged on the top horizontal square steel pipe, the locking bolt is passed in the bolt hole, the end of locking bolt is abutted on the a type square steel pipe, the top of rotating support is connected in the middle of the bottom of a type square steel pipe, the reflector is connected on rotating support. The utility model discloses a measuring auxiliary device is used to measure the distance by range finder, can effectively solve the measurement error, makes the measurement more simple, convenient, reduces the hidden danger when measuring, improves the axis positioning accuracy, and is not affected by the gale weather, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of axis measurement technology, and in particular to an auxiliary device for laser rangefinder measurement. Background Technology

[0002] Currently, China has achieved certain results in the construction technology of flap gates, such as the successful application of hydraulically controlled flap gates in some mountainous rivers and urban waterways. However, most of these studies focus on single river basins or specific types of rivers, and systematic research on flap gate construction technology for multi-basin rivers is still relatively lacking.

[0003] There is some research and application of flap gate design and construction abroad, but due to the significant differences between foreign river conditions and those in my country, their construction techniques and experience cannot be directly copied and applied to the multi-basin rivers in my country.

[0004] With the continuous development of water conservancy projects, the requirements for flap gate construction technology are becoming increasingly higher, and there is an urgent need to carry out relevant research to fill the gap in this field.

[0005] Research on precision control methods during the installation of flap gates, such as using high-precision measuring instruments and methods to accurately measure and adjust the gate's installation position, elevation, verticality, and horizontality, to ensure that the gate's installation precision meets design requirements.

[0006] Traditional axis measurement uses steel tape measure, plumb line, GPS, and total station for positioning. For large spans and high-altitude operations, this method is difficult to operate and has poor measurement accuracy, which can easily lead to the inability to install subsequent gates and the need to cut steel components. Summary of the Invention

[0007] The present invention aims to address the shortcomings of the prior art by providing an auxiliary device for laser rangefinder measurement.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: An auxiliary device for laser rangefinder measurement includes an inverted L-shaped square steel tube, a straight square steel tube, a rotating bracket, and a reflector. The two inverted L-shaped square steel tubes are respectively fastened to both sides of a gate pier by locking bolts. The top horizontal square steel tube of the inverted L-shaped square steel tube is suspended above the top of the gate pier. The straight square steel tube is movably inserted into the top horizontal square steel tubes on both sides. Bolt holes are provided on the top horizontal square steel tube, and locking bolts are inserted into the bolt holes. The ends of the locking bolts abut against the straight square steel tube. The top of the rotating bracket is connected to the middle of the bottom of the straight square steel tube, and the reflector is connected to the rotating bracket.

[0009] The inverted L-shaped square steel pipe has two bolt holes at the bottom of its vertical square steel pipe.

[0010] A rubber pad is placed between the end of the locking bolt on the vertical square steel pipe and the gate pier.

[0011] The rotating support includes a stainless steel plate, a stainless steel ball, a stainless steel circular sleeve with external threads, a stainless steel circular sleeve with internal threads, and a stainless steel column. The bottom end of the stainless steel column is connected to the stainless steel ball. The stainless steel circular sleeve with internal threads has a circular hole on its top surface, through which the stainless steel column extends. The stainless steel circular sleeve with internal threads is threaded to the upper part of the stainless steel circular sleeve with external threads. The stainless steel ball is fitted into the cavity formed by the stainless steel circular sleeve with internal threads and the stainless steel circular sleeve with external threads. The stainless steel plate is connected to the bottom surface of the stainless steel circular sleeve with external threads, and a stainless steel screw passes through the lower part of the stainless steel plate.

[0012] The rubber pad is surrounded by a steel ring.

[0013] The rotating bracket mentioned can rotate 360°.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a distance measuring instrument to measure distance by setting up a measurement auxiliary device, which replaces the traditional steel tape measure, plumb line, GPS, and total station to determine the axis position. It can effectively solve measurement errors, make measurement simpler and more convenient, reduce safety hazards during measurement, improve axis positioning accuracy, and is not affected by strong winds, thus improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rotating support structure of this utility model; Figure 3 This is a schematic diagram of the inverted L-shaped square steel tube structure of this utility model; Figure 4 This is a top view of the layout of the present invention and the rangefinder; Figure 5 This is a layout diagram of the present invention and the rangefinder; In the diagram: 1-Inverted L-shaped square steel pipe; 2-Straight square steel pipe; 3-Locking bolt; 4-Rubber pad; 5-Reflector plate; 6-Rotating bracket; 61-Stainless steel screw; 62-Stainless steel plate; 63-Stainless steel ball; 64-Stainless steel round sleeve with external thread; 65-Stainless steel round sleeve with internal thread; 66-Stainless steel column; 7-Gate pier; 8-Laser rangefinder; 9-Starting axis; 10-Axis to be measured; 11-Top horizontal square steel pipe; 12-Vertical square steel pipe; 13-Auxiliary device for laser rangefinder measurement; The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: An auxiliary device for laser rangefinder measurement includes an inverted L-shaped square steel tube 1, a straight square steel tube 2, a rotating bracket 6, and a reflector 5. The two inverted L-shaped square steel tubes 1 are respectively fastened to the two sides of a gate pier 7 by locking bolts 3. The top horizontal square steel tube 11 of the inverted L-shaped square steel tube 1 is suspended above the top of the gate pier 7. The straight square steel tube 2 is movably inserted into the top horizontal square steel tubes 11 on both sides. Bolt holes are provided on the top horizontal square steel tube 11, and locking bolts 3 are inserted into the bolt holes. The ends of the locking bolts 3 abut against the straight square steel tube 2. The top of the rotating bracket 6 is connected to the middle of the bottom of the straight square steel tube 2, and the reflector 5 is connected to the rotating bracket 6.

[0017] The inverted L-shaped square steel pipe 1 has two bolt holes at the bottom of its vertical square steel pipe 12.

[0018] A rubber pad 4 is placed between the end of the locking bolt 3 on the vertical square steel pipe 12 and the gate pier 7.

[0019] The rotating support 6 includes a stainless steel plate 62, a stainless steel ball 63, a stainless steel circular sleeve 64 with external threads, a stainless steel circular sleeve 65 with internal threads, and a stainless steel column 66. The bottom end of the stainless steel column 66 is connected to the stainless steel ball 63. The top surface of the stainless steel circular sleeve 65 with internal threads has a circular hole through which the stainless steel column 66 extends. The stainless steel circular sleeve 65 with internal threads is threaded to the upper part of the stainless steel circular sleeve 64 with external threads. The stainless steel ball 63 is fitted into the inner cavity formed by the stainless steel circular sleeve 65 with internal threads and the stainless steel circular sleeve 64 with external threads. The stainless steel plate 62 is connected to the bottom surface of the stainless steel circular sleeve 64 with external threads, and a stainless steel screw 61 passes through the lower part of the stainless steel plate 62.

[0020] The rubber pad 4 mentioned above is surrounded by a steel ring.

[0021] The rotating bracket 6 mentioned can rotate 360°.

[0022] (1) Place the laser rangefinder 8 at the starting axis 9 (A axis) position. Set an auxiliary device 13 (i.e. this utility model) for laser rangefinder measurement that is fixed to the gate pier 7 near the axis to be measured 10 (B axis). It is required that the auxiliary device 13 for laser rangefinder measurement is firmly fixed to the gate pier 7 and the direction of the reflector 5 can be adjusted left and right. After fixing the auxiliary device 13 for laser rangefinder measurement, adjust the verticality of the reflector 5.

[0023] (2) After the laser beam emitted by the laser rangefinder 8 hits the fixed reflector 5 (point P), it is reflected back to the laser rangefinder 8. The distance from axis A to reflector 5 is measured by the laser rangefinder 8 to determine the first point P of the axis. Then, the second point Q of the axis is determined by the same measurement. By comparing the distances measured twice, the left and right directions of reflector 5 are adjusted. Re-measurement and adjustment of reflector 5 are performed until the distance error between the two points is within the allowable range.

[0024] (3) After the measurement is completed, draw points and lines on the column or component based on the lower edge of the reflector 5, and finally determine the position of the B axis according to the design axis dimensions.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An auxiliary device for laser rangefinder measurement, characterized in that, The system includes an inverted L-shaped square steel pipe (1), a straight square steel pipe (2), a rotating bracket (6), and a reflector (5). The two inverted L-shaped square steel pipes (1) are fastened to the two sides of the gate pier (7) by locking bolts (3). The top horizontal square steel pipe (11) of the inverted L-shaped square steel pipe (1) is suspended above the top of the gate pier (7). The straight square steel pipe (2) is movably inserted into the top horizontal square steel pipe (11) on both sides. Bolt holes are provided on the top horizontal square steel pipe (11), and locking bolts (3) are inserted into the bolt holes. The ends of the locking bolts (3) abut against the straight square steel pipe (2). The top of the rotating bracket (6) is connected to the middle of the bottom of the straight square steel pipe (2), and the reflector (5) is connected to the rotating bracket (6).

2. The auxiliary device for laser rangefinder measurement according to claim 1, characterized in that, The inverted L-shaped square steel pipe (1) has two bolt holes at the bottom of the vertical square steel pipe (12).

3. The auxiliary device for laser rangefinder measurement according to claim 2, characterized in that, A rubber pad (4) is provided between the end of the locking bolt (3) on the vertical square steel pipe (12) and the gate pier (7).

4. The auxiliary device for laser rangefinder measurement according to claim 1, characterized in that, The rotating bracket (6) includes a stainless steel plate (62), a stainless steel ball (63), a stainless steel circular sleeve with external threads (64), a stainless steel circular sleeve with internal threads (65), and a stainless steel column (66). The bottom end of the stainless steel column (66) is connected to the stainless steel ball (63). The stainless steel circular sleeve with internal threads (65) has a circular hole on its top surface. The stainless steel column (66) passes through the circular hole. The stainless steel circular sleeve with internal threads (65) is threaded to the upper part of the stainless steel circular sleeve with external threads (64). The stainless steel ball (63) is sleeved in the cavity formed by the stainless steel circular sleeve with internal threads (65) and the stainless steel circular sleeve with external threads (64). The stainless steel plate (62) is connected to the bottom surface of the stainless steel circular sleeve with external threads (64). A stainless steel screw (61) passes through the lower part of the stainless steel plate (62).

5. An auxiliary device for laser rangefinder measurement according to claim 3, characterized in that, The rubber pad (4) is surrounded by a steel ring.

6. An auxiliary device for laser rangefinder measurement according to claim 4, characterized in that, The rotating bracket (6) mentioned above can rotate 360°.

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