A laser measuring device and method of use thereof

Abstract

This invention discloses a laser measurement device and its usage method, relating to the field of laser measurement technology. It includes a laser rangefinder body, a laser emitter, a moving structure, a positioning structure, and a rotating structure. The moving structure drives the laser emitter to move horizontally; the positioning structure fixes the moving structure and the laser emitter; and the rotating structure adjusts the angle of rotation of the laser emitter. This invention, by rotating the mounting tube and mounting block, causes the inner walls of the mounting grooves at both ends to press and push against the connecting column, driving the moving block and the laser emitter to move in opposite directions along both sides of the mounting frame. This adjusts the longitudinal distance between the two laser emitters, creating a longitudinal gap and a known time delay to distinguish different reflected signals. Furthermore, the two laser beams follow identical optical paths and are subject to environmental disturbances, eliminating measurement errors caused by atmospheric refractive index changes, vibrations, temperature drift, etc., thus improving measurement accuracy.

Description

Technical Field

[0001] This invention relates to the field of laser measurement technology, and in particular to a laser measurement device and its method of use. Background Technology

[0002] A laser rangefinder uses lasers to accurately measure the distance to a target. A laser beam is emitted from a laser emitter towards the target. After the laser reaches the target, it is reflected back. The instrument receives the reflected light, calculates the time it takes for the laser to travel to and from the target, and combines this with the speed of light to calculate the distance between the laser rangefinder and the target.

[0003] The laser emitter inside a laser rangefinder is usually fixed in place. When measuring long distances, the signal is affected more during reflection as the distance increases, causing the time interval between reflections of adjacent signals to decrease. The instrument cannot determine whether the received echo is a reflection of the current pulse or the previous pulse, thus making it impossible to determine the true distance. Furthermore, when a laser rangefinder performs multiple measurements on a target, the measurement position, angle, and height are usually deviated. Environmental factors and the device's own electronic delay and optical path drift can easily lead to measurement errors, affecting the accuracy of the measurement results. Summary of the Invention

[0004] The purpose of this invention is to provide a laser measurement device and its usage method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser measurement device, comprising: Main body of the laser rangefinder; A laser emitter, wherein the laser emitter is disposed within the main body of the laser rangefinder; A movable structure is disposed within the main body of the laser rangefinder, which is used to drive the laser emitter to move horizontally; A positioning structure is provided on the movable structure and is used to fix the movable structure and the laser emitter. A rotating structure is provided on both sides of the movable structure and is used to adjust the angle of the laser emitter.

[0006] Preferably, the moving structure includes: Mounting bracket, which is fixedly connected to the top of the inner wall of the laser rangefinder body, and the mounting bracket is arranged in a U-shape; Movable blocks are disposed on both sides of the inner cavity of the mounting bracket, and the movable blocks are disposed below the laser sensor; A fixed shaft is fixedly connected to one side of the movable block; A roller, which is rotatably connected to one end of a fixed shaft; The movable groove is located on both sides of the mounting frame. The movable groove and the roller are slidably interlocked. The inner wall of the movable groove is in contact with the outer wall of the roller.

[0007] Preferably, the moving structure further includes: A fixed base is fixedly connected to the upper surface of one end of the movable block. The fixed base is U-shaped, and the laser emitter is disposed in the inner cavity of the fixed base. Mounting shaft, the mounting shaft is fixedly connected to both sides of the laser emitter, and one end of the mounting shaft is rotatably inserted into the fixed base; Mounting block, wherein the mounting block is disposed below the movable block; The mounting slots are located at both ends of the mounting block and are elongated. A connecting column is fixedly connected to the lower surface of the movable block, and the connecting column and the mounting groove are slidably interlocked.

[0008] Preferably, the moving structure further includes: The mounting tube has its bottom end fixedly connected to the middle of the upper surface of the mounting block, and its top end is rotatably connected to the top of the inner wall of the laser rangefinder body. A rotating rod, the bottom of which is slidably inserted into the mounting tube, and the top of which is rotatably inserted into the top of the laser rangefinder body; An ultrasonic sensor is fixedly mounted on the back of the inner wall of the mounting bracket.

[0009] Preferably, the positioning structure includes: A connecting block is slidably inserted into the mounting tube and fixedly connected to the bottom end of the rotating rod. A compression spring is disposed inside the mounting tube, and the top end of the compression spring is in contact with the lower surface of the connecting block; A sliding groove is provided on both sides of the inner wall of the mounting tube; A sliding block is fixedly connected to both sides of the outer wall of the connecting block, and the sliding block and the sliding groove are slidably interlocked.

[0010] Preferably, the positioning structure further includes: Positioning posts are fixedly connected to the upper surface of the connecting block, and the positioning posts are arranged in a circular array at equal intervals. The positioning hole is located on the top of the inner wall of the laser rangefinder body, and the positioning hole and the positioning post are slidably interlocked. Limiting blocks are fixedly connected to one end of the fixed shaft and the outer wall of the movable block, respectively. The ball bearing is movably engaged on the limiting block, and the outer wall of the ball bearing is respectively attached to the outer wall and inner wall of the mounting frame.

[0011] Preferably, the rotating structure includes: A connecting rod, which is fixedly connected to one end of one of the fixed shafts; A fixing block is fixedly connected to one end of a connecting rod and is disposed on one side of the laser emitter; A torsion spring is movably sleeved on a connecting rod. One end of the torsion spring is fixedly connected to the outer wall of the fixed base, and the other end of the torsion spring is fixedly installed to the outer wall of the fixed block. A fixing column is fixedly connected to one side of the bottom of the fixing block.

[0012] Preferably, the rotating structure further includes: The positioning blocks are disposed on both sides of the inner cavity of the laser rangefinder body, and the lower surface of the positioning blocks is in contact with the upper surface of the mounting bracket. A fixing rod is fixedly connected to one side of the outer wall of the positioning block; A groove is provided on the other side of the fixing block, and the groove is slidably intersecting with the fixing rod; The extrusion grooves are equidistantly spaced on one side of the positioning block, and are arranged in an arc shape. The extrusion grooves are slidably interlocked with the fixing column. An adjusting screw is threadedly connected to both sides of the laser rangefinder body, and one end of the adjusting screw is rotatably connected to the other side of the positioning block; A tilt sensor is fixedly mounted on one end of another fixed shaft.

[0013] Preferably, the upper surface of the mounting block is in contact with the lower surface of the movable block, the ultrasonic sensor is positioned corresponding to the laser emitter, the extrusion grooves are arranged in a straight line at equal intervals, and the extrusion grooves correspond to the positioning holes.

[0014] A method of using a laser measuring device, such as Figure 9 As shown, the specific steps include: Step S1: Press down on the rotating rod to separate the positioning pin from the positioning hole, then rotate the rotating rod to drive the mounting tube and mounting block to rotate together; Step S2: As the mounting block rotates, the inner walls of its two end mounting slots press and push against the connecting column, causing the two movable blocks and the laser emitter to move horizontally in opposite directions; Step S3: Use an ultrasonic sensor to measure the distance between the two laser emitters. The difference between the measurement data of the two laser emitters is the distance between the laser emitters. The difference data is transmitted to the laser rangefinder to calculate two sets of measurement data. Step S4: By rotating the adjusting screw, the positioning block is moved horizontally, so that the fixing column slides into the extrusion groove on one side of the positioning block; Step S5: At this point, continue to rotate the mounting block, push the movable block and the laser emitter to move horizontally, and the inner wall of the extrusion groove will press and push the fixed column, so that the fixed block drives the laser emitter to rotate, and adjust the measurement angle of the laser emitter.

[0015] The technical effects and advantages of this invention are as follows: This invention involves pressing down on a rotating rod and then rotating it, causing the mounting tube and mounting block to rotate together. The inner walls of the mounting slots at both ends of the tube press and push against the connecting column, causing the movable block and laser emitter to move in opposite directions along both sides of the mounting frame. This adjusts the longitudinal distance between the two laser emitters, creating a longitudinal gap between them. By using two laser emitters for measurement, a known time delay is generated to distinguish different reflected signals, preventing measurement blind spots from appearing between the two pulses. Furthermore, since the two laser beams pass through identical optical paths and environmental disturbances, measurement errors caused by atmospheric refractive index changes, vibrations, temperature drift, etc., are eliminated, improving the accuracy of the measurement data. This invention uses a rotating adjusting screw to move the positioning block horizontally, so that the bottom of the extrusion groove on one side of the positioning block slides and interlocks with one end of the fixed column. Then, by rotating the mounting block, the movable block and the laser emitter are moved horizontally. The inner wall of the extrusion groove squeezes and pushes the fixed column, causing the fixed block to drive the laser emitter to rotate, thus adjusting the measurement angle of the laser emitter. This allows the laser emitter to measure at different angle positions and obtain multiple sets of measurement data. This invention uses a rotating rod to drive the connecting block and the positioning column to rotate together. When the positioning column slides into the positioning hole, it limits and fixes the connecting block and the mounting tube. Furthermore, by utilizing the interval between adjacent positioning holes, the rotation angle of the mounting tube and the mounting block is limited, thereby controlling the distance that the movable block and the laser emitter move, ensuring stable alignment between the fixed column and the extrusion groove. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top-view cross-sectional structural diagram of the main body of the laser rangefinder of the present invention; Figure 3 This is a top sectional view of the mounting bracket structure of the present invention; Figure 4 This is a top cross-sectional view of the movable block of the present invention; Figure 5 This is a schematic diagram of the rear cross-sectional structure of the mounting block of the present invention; Figure 6 This is a schematic diagram of the back structure of the positioning block of the present invention; Figure 7 This is a schematic diagram of the side structure of the positioning block of the present invention; Figure 8 This is a schematic cross-sectional view of the mounting tube of the present invention from the rear. Figure 9 This is a schematic diagram of the measurement method of the present invention.

[0017] In the attached diagram: 1. Main body of the laser rangefinder; 2. Laser emitter; 3. Moving structure; 31. Mounting bracket; 32. Movable block; 33. Fixed shaft; 34. Roller; 35. Movable groove; 36. Fixed seat; 37. Mounting shaft; 38. Mounting block; 39. Mounting groove; 310. Connecting column; 311. Mounting tube; 312. Rotating rod; 313. Ultrasonic sensor; 4. Positioning structure; 41. Connecting block; 42. Compression spring; 43. Sliding groove; 44. Sliding block; 45. Positioning column; 46. Positioning hole; 47. Limiting block; 48. Ball bearing; 5. Rotating structure; 51. Connecting rod; 52. Fixed block; 53. Torsion spring; 54. Fixed column; 55. Positioning block; 56. Fixed rod; 57. Groove; 58. Extrusion groove; 59. Adjusting screw; 510. Tilt sensor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides, for example Figures 1-8The laser measuring device shown includes a laser rangefinder body 1, a laser emitter 2, a moving structure 3, a positioning structure 4, and a rotating structure 5. The laser rangefinder body 1 is used to measure the distance between itself and a target. A laser receiver and controller are installed inside the laser rangefinder body 1 to receive the signal reflected back from the target and perform calculations using the controller. The laser emitter 2 is located inside the laser rangefinder body 1, emitting two laser beams to irradiate the target surface. The moving structure 3 is located inside the laser rangefinder body 1 and is used to move the laser emitter 2 horizontally, changing the longitudinal distance between the two laser emitters 2. The positioning structure 4 is located on the moving structure 3 and is used to fix the moving structure 3 and the laser emitter 2. The rotating structure 5 is located on both sides of the moving structure 3 and is used to adjust the angle of rotation of the laser emitter 2 for multi-angle measurements.

[0020] The movable structure 3 includes a mounting frame 31, movable blocks 32, fixed shaft 33, rollers 34, movable grooves 35, fixed seats 36, mounting shafts 37, mounting blocks 38, mounting grooves 39, connecting columns 310, mounting tubes 311, rotating rods 312, and ultrasonic sensors 313. The mounting frame 31 is fixedly connected to the top of the inner wall of the laser rangefinder body 1. The mounting frame 31 is U-shaped and is used to mount the laser emitter 2. The movable blocks 32 are located on both sides of the inner cavity of the mounting frame 31, below the laser sensor 2. The laser emitter 2 is fixedly mounted on the upper surface of the movable blocks 32, and the movable blocks 32 drive the two laser emitters 2 to move longitudinally. A fixed shaft 33 is fixedly connected to one side of the movable block 32. The fixed shaft 33 is used to install the roller 34, and the fixed shaft 33 and the movable groove 35 are slidably interlocked. The roller 34 is rotatably connected to one end of the fixed shaft 33, and the roller 34 is rotatably connected to one side of the movable block 32 through the fixed shaft 33. The movable groove 35 is provided on both sides of the mounting bracket 31, and the movable groove 35 and the roller 34 are slidably interlocked. The inner wall of the movable groove 35 fits against the outer wall of the roller 34. The movable groove 35 is used to install and accommodate the roller 34, and the roller 34 facilitates the movement of the movable block 32. A fixed seat 36 is fixedly connected to the upper surface of one end of the movable block 32. The fixed seat 36 is U-shaped, and the laser emitter 2 is disposed on the fixed seat 36. Inside the cavity, a fixed base 36 is used to mount the laser emitter 2; a mounting shaft 37 is fixedly connected to both sides of the laser emitter 2, with one end of the mounting shaft 37 rotatably interlocking with the fixed base 36. The laser emitter 2 is rotatably connected to the fixed base 36 via the mounting shaft 37, facilitating angle adjustment of the laser emitter 2; a mounting block 38 is located below the movable block 32, and is used to move the two movable blocks 32 and the laser emitter 2. The upper surface of the mounting block 38 is in contact with the lower surface of the movable block 32; mounting grooves 39 are located at both ends of the mounting block 38, and are elongated. The mounting grooves 39 are used to accommodate the connecting post 310; the connecting post 310 is fixedly connected to the movable block 32. On the lower surface of the movable block 32, the connecting column 310 and the mounting groove 39 are slidably interlocked. The outer wall of the connecting column 310 is in contact with the inner wall of the mounting groove 39. By rotating the mounting block 38, the inner walls of the mounting grooves 39 at both ends of the mounting block 38 press and push the connecting column 310, causing the movable block 32 and the laser emitter 2 to move in opposite directions along both sides of the mounting frame 31, thereby adjusting the longitudinal distance between the two laser emitters 2. The bottom end of the mounting tube 311 is fixedly connected to the middle of the upper surface of the mounting block 38. The top of the mounting tube 311 is rotatably connected to the top of the inner wall of the laser rangefinder body 1. The mounting block 38 is rotatably connected through the mounting tube 311, so that the mounting block 38 rotates around the axis of the mounting tube 311.The bottom of the rotating rod 312 is slidably inserted into the mounting tube 311, and the top of the rotating rod 312 is rotatably inserted into the top of the laser rangefinder body 1. The rotating rod 312 slides within the mounting tube 311, driving the mounting tube 311 and mounting block 38 to rotate. The ultrasonic sensor 313 is fixedly installed on the back of the inner wall of the mounting bracket 31. The ultrasonic sensor 313 uses emitted high-frequency sound pulses to measure the distance between the ultrasonic sensor 313 and the laser emitter 2 by calculating the flight time of the echo. The difference between the measurement data of the two ultrasonic sensors 313 is calculated, and the difference is the longitudinal distance between the two laser emitters 2. The positions of the ultrasonic sensor 313 and the laser emitter 2 correspond. Using the measurement method of two laser emitters 2, the two laser beams pass through the same optical path and environmental disturbances, generating a known time delay, which is used to distinguish different reflected signals, prevent the two pulses from having measurement blind spots, and achieve efficient continuous tracking of fast-moving targets, ensuring the ability to measure long distances and improving the accuracy of measurement data.

[0021] The positioning structure 4 includes a connecting block 41, a compression spring 42, a sliding groove 43, a sliding block 44, a positioning post 45, a positioning hole 46, a limiting block 47, and a ball bearing 48. The connecting block 41 is slidably inserted into the mounting tube 311 and is fixedly connected to the bottom end of the rotating rod 312. The connecting block 41 connects the rotating rod 312 and the mounting tube 311 and moves vertically within the mounting tube 311. The compression spring 42 is disposed within the mounting tube 311, and its top end is in contact with the lower surface of the connecting block 41. When the rotating rod 312 drives the connecting block 41 to move vertically downward, it compresses the compression spring 42. The deformation, and the elastic action of the compression spring 42, pushes the connecting block 41 and the rotating rod 312 upward; the sliding groove 43 is provided on both sides of the inner wall of the mounting tube 311, and the sliding groove 43 is used to install and accommodate the sliding block 44; the sliding block 44 is fixedly connected to both sides of the outer wall of the connecting block 41, and the sliding block 44 and the sliding groove 43 are slidably interlocked, the sliding block 44 moves together with the connecting block 41, moves vertically along the sliding groove 43, and the sliding block 44 rotates with the connecting block 41, pushing the mounting tube 311 and the mounting block 38 to rotate; the positioning post 45 is fixedly connected to the upper surface of the connecting block 41, and the positioning post 45 is in a position of The circular array is equidistantly spaced, and the positioning posts 45 move together with the connecting block 41. Positioning holes 46 are located at the top of the inner wall of the laser rangefinder body 1, and are slidably inserted into the positioning posts 45. The positioning holes 46 are used to accommodate the positioning posts 45. Utilizing the elasticity of the compression spring 42, the connecting block 41 and the positioning posts 45 are pushed upwards, causing the positioning posts 45 to slide into the positioning holes 46, thus limiting and fixing the connecting block 41 and the mounting tube 311. Furthermore, the spacing between adjacent positioning holes 46 limits the rotation angle of the mounting tube 311 and the mounting block 38, thereby controlling the movement of the movable block 32 and the laser emitter. The distance the laser emitter 2 moves; the limiting block 47 is fixedly connected to one end of the fixed shaft 33 and the outer wall of the movable block 32 respectively. The limiting block 47 is used to limit the installation of the fixed shaft 33 and prevent the movable block 32 from separating from the mounting frame 31; the ball bearing 48 is movably snapped on the limiting block 47. The outer wall of the ball bearing 48 is in contact with the outer wall and inner wall of the mounting frame 31 respectively. The ball bearing 48 rolls on the limiting block 47. The limiting block 47 contacts the outer wall and the interior of the mounting frame 31 through the ball bearing 48. By using the rolling of the ball bearing 48, the frictional resistance of the movable block 32 is reduced, which facilitates the movement of the movable block 32 and the laser emitter 2.

[0022] The rotating structure 5 includes a connecting rod 51, a fixing block 52, a torsion spring 53, a fixing column 54, a positioning block 55, a fixing rod 56, a groove 57, a pressing groove 58, an adjusting screw 59, and a tilt sensor 510. The connecting rod 51 is fixedly connected to one end of one of the fixing shafts 33 and is used to connect the fixing shaft 33 and the fixing block 52. The fixing block 52 is fixedly connected to one end of the connecting rod 51 and is located on one side of the laser emitter 2. The fixing block 52 is used to drive the fixing shaft 33 and the laser emitter 2 to rotate. The torsion spring 53 is movably sleeved on the connecting rod 51. One end of the torsion spring 53 is fixedly connected to the outer wall of the fixing seat 36, and the other end of the torsion spring 53 is connected to the fixing block. The fixing block 52 is fixedly installed on the outer wall. When the fixing block 52 drives the laser emitter 2 to rotate clockwise, it compresses and deforms the torsion spring 53. Utilizing the elasticity of the torsion spring 53, it drives the fixing block 52 and the laser emitter 2 to rotate back to a horizontal position, ensuring that the fixing post 54 is aligned with the bottom of the extrusion groove 58. The fixing post 54 is fixedly connected to one side of the bottom of the fixing block 52 and is used to connect the positioning block 55 and the fixing block 52. The positioning block 55 is located on both sides of the inner cavity of the laser rangefinder body 1. The lower surface of the positioning block 55 is in contact with the upper surface of the mounting bracket 31, and the positioning block 55 moves horizontally in the lateral direction. The fixing rod 56 is fixedly connected to one side of the outer wall of the positioning block 55 and is used to fix the positioning block 55. The rotation of the fixed block 52 is limited; a groove 57 is provided on the other side of the fixed block 52, and the groove 57 is slidably interlocked with the fixed rod 56. The groove 57 is used for installation and accommodation. When the longitudinal distance of the laser emitter 2 is adjusted, the fixed block 52 moves along the fixed rod 56, so that the fixed block 52 and the laser emitter 2 cannot rotate, ensuring the stable movement of the laser emitter 2; extrusion grooves 58 are equally spaced on one side of the positioning block 55. The extrusion grooves 58 are arc-shaped and slidably interlocked with the fixed post 54. The extrusion grooves 58 are arranged in a straight line at equal intervals. The extrusion grooves 58 are used to install and accommodate the fixed post 54 and to extrude and push the fixed post 54, so that the fixed block 52 can rotate. 52 drives the laser emitter 2 to rotate clockwise. At the same time, the spacing between adjacent extrusion grooves 58 matches the spacing between adjacent positioning holes 46. When the mounting tube 311 drives the mounting block 38 to rotate one positioning hole 46 interval, the distance that the laser emitter 2 and the fixed column 54 move is the spacing of one extrusion groove 58, ensuring that the bottom position of the fixed column 54 is aligned with the bottom position of the extrusion groove 58. The adjusting screw 59 is threaded to both sides of the laser rangefinder body 1. One end of the adjusting screw 59 is rotatably connected to the other side of the positioning block 55. By rotating the adjusting screw 59, the positioning block 55 is driven to move horizontally, so that the bottom of the inner cavity of the extrusion groove 58 on one side of the positioning block 55 slides and intersects with one end of the fixed column 54.The tilt sensor 510 is fixedly mounted on one end of another fixed shaft 33. The tilt sensor 510 has a small mass block. When the sensor tilts, the mass block undergoes a slight displacement due to the gravitational component, causing a change in the capacitance between it and the fixed electrode. The sensor circuit detects this capacitance change and converts it into a voltage or digital signal. According to a pre-calibrated formula, this electrical signal is converted into a final angle value, allowing for real-time measurement of the rotation angle of the laser emitter 2. This facilitates measurement of the laser emitter 2 at different angular positions and the acquisition of multiple sets of measurement data.

[0023] A method for using a laser measuring device specifically includes the following steps: Step S1: By pressing down on the rotating rod 312, the positioning pin 45 is separated from the positioning hole 46, releasing the restriction on the mounting tube 311 and the mounting block 38. Then, the rotating rod 312 is rotated, and the sliding block 44 drives the mounting tube 311 and the mounting block 38 to rotate together. Step S2: As the mounting block 38 rotates, the inner walls of its two end mounting grooves 39 press and push against the connecting column 310, causing the two movable blocks 32 and the laser emitter 2 to move in opposite directions, thereby adjusting the longitudinal distance between the two laser emitters 2; Step S3: The distance between the two laser emitters 2 is measured using the ultrasonic sensor 313. The difference between the measurement data of the two laser emitters 2 is the distance between the laser emitters 2. The difference data is transmitted to the laser rangefinder to calculate two sets of measurement data. The difference between the two measurement data is the longitudinal distance between the two laser emitters 2. This creates a known time delay between the two laser beams, distinguishes different reflected signals, eliminates measurement dead zones, and enables efficient continuous tracking of fast-moving targets, ensuring the ability to measure long distances. Step S4: By rotating the adjusting screw 59, the positioning block 55 is moved horizontally, so that the fixing post 54 slides into the extrusion groove 58 on one side of the positioning block 55; Step S5: At this time, continue to rotate the mounting block 38, push the movable block 32 and the laser emitter 2 to move horizontally, and the inner wall of the extrusion groove 58 extrudes and pushes the fixed column 54, so that the fixed block 52 drives the laser emitter 2 to rotate, and adjust the measurement angle of the laser emitter 2.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser measuring device, characterized in that, include: Laser rangefinder body (1); A laser emitter (2) is disposed inside the main body (1) of the laser rangefinder; The moving structure (3) is located inside the main body (1) of the laser rangefinder and is used to drive the laser emitter (2) to move horizontally. Positioning structure (4), which is disposed on the moving structure (3) and is used to fix the moving structure (3) and the laser emitter (2); Rotating structure (5) is disposed on both sides of the moving structure (3) and is used to adjust the angle rotation of the laser emitter (2).

2. The laser measuring device according to claim 1, characterized in that, The moving structure (3) includes: Mounting bracket (31), which is fixedly connected to the top of the inner wall of the laser rangefinder body (1), and the mounting bracket (31) is U-shaped; Movable block (32), the movable block (32) is disposed on both sides of the inner cavity of the mounting bracket (31), the movable block (32) is disposed below the laser sensor (2); A fixed shaft (33) is fixedly connected to one side of the movable block (32); Roller (34), said roller (34) is rotatably connected to one end of fixed shaft (33); The movable groove (35) is provided on both sides of the mounting bracket (31). The movable groove (35) and the roller (34) are slidably interlocked. The inner wall of the movable groove (35) is in contact with the outer wall of the roller (34).

3. The laser measuring device according to claim 2, characterized in that, The moving structure (3) also includes: A fixed base (36) is fixedly connected to the upper surface of one end of the movable block (32). The fixed base (36) is U-shaped and the laser emitter (2) is disposed in the inner cavity of the fixed base (36). Mounting shaft (37) is fixedly connected to both sides of laser emitter (2), and one end of mounting shaft (37) is rotatably inserted into fixed base (36); Mounting block (38), which is disposed below movable block (32); Mounting slots (39) are provided at both ends of the mounting block (38), and the mounting slots (39) are elongated. A connecting column (310) is fixedly connected to the lower surface of the movable block (32), and the connecting column (310) and the mounting groove (39) are slidably interlocked.

4. The laser measuring device according to claim 3, characterized in that, The moving structure (3) also includes: Mounting tube (311), the bottom end of which is fixedly connected to the middle of the upper surface of mounting block (38), and the top of which is rotatably connected to the top of the inner wall of the laser rangefinder body (1). Rotating rod (312), the bottom of the rotating rod (312) is slidably inserted into the mounting tube (311), and the top of the rotating rod (312) is rotatably inserted into the top of the laser rangefinder body (1); An ultrasonic sensor (313) is fixedly installed on the back side of the inner wall of the mounting bracket (31).

5. The laser measuring device according to claim 4, characterized in that, The positioning structure (4) includes: Connecting block (41), the connecting block (41) is slidably inserted into the mounting tube (311), and the connecting block (41) is fixedly connected to the bottom end of the rotating rod (312); Compression spring (42), the compression spring (42) is disposed inside the mounting tube (311), and the top end of the compression spring (42) is in contact with the lower surface of the connecting block (41); Sliding groove (43), the sliding groove (43) is provided on both sides of the inner wall of the mounting tube (311); The sliding block (44) is fixedly connected to both sides of the outer wall of the connecting block (41), and the sliding block (44) and the sliding groove (43) are slidably interlocked.

6. The laser measuring device according to claim 5, characterized in that, The positioning structure (4) also includes: Positioning posts (45) are fixedly connected to the upper surface of the connecting block (41), and the positioning posts (45) are arranged in a ring array at equal intervals. Positioning hole (46) is located on the top of the inner wall of the laser rangefinder body (1), and the positioning hole (46) and the positioning post (45) are slidably interlocked. Limiting blocks (47) are fixedly connected to one end of the fixed shaft (33) and the outer wall of the movable block (32); The ball (48) is movably engaged on the limiting block (47), and the outer wall of the ball (48) is respectively attached to the outer wall and inner wall of the mounting bracket (31).

7. The laser measuring device according to claim 6, characterized in that, The rotating structure (5) includes: A connecting rod (51) is fixedly connected to one end of one of the fixed shafts (33); A fixing block (52) is fixedly connected to one end of a connecting rod (51) and the fixing block (52) is located on one side of the laser emitter (2); Torsion spring (53), the torsion spring (53) is movably sleeved on the connecting rod (51), one end of the torsion spring (53) is fixedly connected to the outer wall of the fixed seat (36), and the other end of the torsion spring (53) is fixedly installed to the outer wall of the fixed block (52); A fixing post (54) is fixedly connected to one side of the bottom of the fixing block (52).

8. The laser measuring device according to claim 7, characterized in that, The rotating structure (5) also includes: Positioning block (55), the positioning block (55) is disposed on both sides of the inner cavity of the laser rangefinder body (1), and the lower surface of the positioning block (55) is in contact with the upper surface of the mounting bracket (31); A fixing rod (56) is fixedly connected to one side of the outer wall of the positioning block (55); The groove (57) is located on the other side of the fixing block (52), and the groove (57) and the fixing rod (56) are slidably intersected. The extrusion groove (58) is equidistantly spaced on one side of the positioning block (55). The extrusion groove (58) is arc-shaped and is slidably interlocked with the fixing column (54). Adjusting screw (59), the adjusting screw (59) is threadedly connected to both sides of the laser rangefinder body (1), and one end of the adjusting screw (59) is rotatably connected to the other side of the positioning block (55); Tilt sensor (510), which is fixedly mounted on one end of another fixed shaft (33).

9. The laser measuring device according to claim 8, characterized in that, The upper surface of the mounting block (38) is in contact with the lower surface of the movable block (32), the ultrasonic sensor (313) is in the same position as the laser emitter (2), the extrusion grooves (58) are arranged in a straight line at equal intervals, and the extrusion grooves (58) are in the same position as the positioning holes (46).

10. A method of using a laser measuring device, characterized in that, This method, applied to a laser measuring device as described in any one of claims 1-9, specifically includes the following steps: Step S1: Press down on the rotating rod (312) to separate the positioning pin (45) from the positioning hole (46), and then rotate the rotating rod (312) to drive the mounting tube (311) and the mounting block (38) to rotate together; Step S2: As the mounting block (38) rotates, the inner walls of the mounting grooves (39) at both ends of the block press against the connecting column (310), causing the two movable blocks (32) and the laser emitter (2) to move horizontally in opposite directions. Step S3: Use an ultrasonic sensor (313) to measure the distance between the two laser emitters (2). The difference between the measurement data of the two laser emitters (2) is the distance between the laser emitters (2). The difference data is transmitted to the laser rangefinder to calculate two sets of measurement data. Step S4: By rotating the adjusting screw (59), the positioning block (55) is moved horizontally, so that the fixing column (54) slides into the extrusion groove (58) on one side of the positioning block (55); Step S5: At this time, continue to rotate the mounting block (38) to push the movable block (32) and the laser emitter (2) to move horizontally. The inner wall of the extrusion groove (58) presses and pushes the fixed column (54), so that the fixed block (52) drives the laser emitter (2) to rotate. The rotation angle is measured by the tilt sensor (510) and the data is transmitted to the laser rangefinder to adjust the measurement angle of the laser emitter (2).

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