Portable three-dimensional laser scanning measuring instrument

Abstract

The invention discloses a portable three-dimensional laser scanning measuring instrument, and relates to the technical field of optical scanning, the portable three-dimensional laser scanning measuring instrument comprises a shell, a three-dimensional scanner is arranged in the top of the shell, the three-dimensional scanner extends out of the top of the shell, one side of the three-dimensional scanner is provided with a laser receiving and transmitting port, and the other side of the three-dimensional scanner is provided with a laser receiving and transmitting port. A protection mechanism is arranged on the outer wall of the three-dimensional scanner, and by arranging the three-dimensional scanner, when the shell needs to be used in an outdoor construction area or a field experiment and is placed on the ground with different flatness for three-dimensional scanning, the shell and the three-dimensional scanner can form a certain inclination angle, and the shell is prevented from being damaged. And once the three-dimensional scanner generates an inclination angle and a laser receiving and transmitting port at one side of the three-dimensional scanner is lifted, rainwater and water vapor easily and directly fall into the laser receiving and transmitting port, so that the scanning detection is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of optical scanning, and specifically to a portable three-dimensional laser scanning measuring instrument. Background Art

[0002] Three-dimensional scanning refers to a high-tech that integrates light, machinery, electricity, and computer technologies, mainly used for scanning the spatial shape, structure, and color of an object to obtain the spatial coordinates of the object surface; A scanning type strip rolling material thickness profile measuring instrument described in the patent application with the publication number of CN108534691A includes measuring heads arranged above and below the measured rolling material, and the measuring heads are arranged in pairs; during measurement, the measuring heads move along a preset trajectory at their own heights, and the vertical intersection points of each pair of the measuring heads and the central axis plane of the thickness of the rolling material are always the same point; When a three-dimensional laser scanner is used outdoors, when it rains, rainwater is likely to adhere to the three-dimensional laser scanner, resulting in a certain error in information reception due to the refraction of water droplets. And when the three-dimensional laser scanner needs to be used in outdoor construction areas or field experiments, when it is placed on different flatness ground for three-dimensional scanning, the three-dimensional laser scanner will generate a certain tilt angle. Once the three-dimensional laser scanner generates a tilt angle and causes the internal laser receiving port to rise, then rainwater, water vapor, sand and stones in the air will directly fall into it, resulting in the problem that the scanning detection is affected. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a portable three-dimensional laser scanning measuring instrument, achieving the purpose of solving the above problems.

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A portable three-dimensional laser scanning measuring instrument includes a housing. Inside the top of the housing, a three-dimensional scanner is provided. The three-dimensional scanner extends out of the top of the housing. A laser transceiver port is provided on one side of the three-dimensional scanner, and a protection mechanism is provided on the outer wall of the three-dimensional scanner; The protection mechanism includes: A top cover, the top cover is a circular disc structure. A slide bar is fixedly connected to the outer wall of the top cover. The slide bar is a circular ring structure. The top cover is used for protecting the top of the three-dimensional scanner; A sliding block, the sliding block is an arc-shaped block structure. The sliding block is slidably connected to the outer wall of the slide bar. An expansion rod is provided above the sliding block. A telescopic protection plate is fixedly connected to one side of the top cover. The telescopic protection plate is used for protecting the laser transceiver port.

[0005] Preferably, a counterweight block is fixedly connected to the outer wall of the sliding block. The counterweight block is used to counterweight the sliding block. A stop block is fixedly connected to one side of the top cover away from the telescopic protection plate.

[0006] Preferably, a connecting rod is fixedly connected to the top of the sliding block. A rotating ball is rotatably connected to the top of the connecting rod. The number of rotating balls is two. An expansion rod is fixedly connected between the two rotating balls. A built-in spring is arranged inside the expansion rod.

[0007] Preferably, a communicating pipe is fixedly connected to the outer wall of the sliding block. One end of the communicating pipe is fixedly connected to a fixed block. One side of the fixed block is fixedly connected to one side of the telescopic protection plate.

[0008] Preferably, the inside of the expansion rod communicates with the inside of the communicating pipe through the sliding block, and the inside of the communicating pipe communicates with the inside of the telescopic protection plate through the fixed block.

[0009] Preferably, a closing mechanism is arranged on the top of the three-dimensional scanner. The closing mechanism includes a bottom ring. The bottom of the bottom ring is fixedly connected to the top of the three-dimensional scanner. An expandable closing plate is fixedly connected to the top of the bottom ring. A magnetic plate is fixedly connected to one side of the expandable closing plate.

[0010] Preferably, an elastic rope is fixedly connected to the top of the magnetic plate. One end of the elastic rope is fixedly connected to the center of one side of the telescopic protection plate. The number of magnetic plates is two. The magnetism on the mutually approaching sides of the two magnetic plates is attracted by opposite poles.

[0011] Preferably, a magnetic strip is fixedly connected to one side of the magnetic plate. One end of the magnetic strip contacts a magnetic plate. The bottom of the magnetic plate is fixedly connected to the bottom of the expandable closing plate. The mutually approaching sides of the magnetic plate and the magnetic strip have magnetism and are attracted by opposite poles.

[0012] The present invention provides a portable three-dimensional laser scanning measuring instrument. It has the following beneficial effects: 1. By setting the three-dimensional scanner in the present invention, when the housing needs to be used in outdoor construction areas or field experiments, when placing it on different flatness grounds for three-dimensional scanning, there will be a certain inclination angle between the housing and the three-dimensional scanner. Once the three-dimensional scanner generates an inclination angle and causes the laser transceiver port on one side of the three-dimensional scanner to lift, then rainwater and water vapor are likely to directly fall into the laser transceiver port, resulting in problems that affect the scanning detection. 2. By setting up a 3D scanner in the present invention, the elongation distance of the telescopic protection plate can be adaptively adjusted according to the tilt angle between the 3D scanner and the laser transceiver port, so that the higher the laser transceiver port is lifted, the longer the telescopic protection plate extends to protect the inside of the laser transceiver port, preventing rainwater, sand, dust, etc. from falling into it and affecting the scanning accuracy. When on a flat ground, the telescopic protection plate retracts to the maximum extent, thus not occupying too much area and ensuring that the laser transceiver port can maximize its scanning range. 3. By setting up a 3D scanner in the present invention, the telescopic protection plate will not be pushed by the liquid inside the telescopic rod to extend and block the laser transceiver port. This mechanism can accurately identify whether there is an upward tilt between the laser transceiver port and the 3D scanner, and in real time, use the extension of the telescopic protection plate to ensure the shielding protection of the laser transceiver port. Left - right tilts will not affect the telescopic protection plate, which remains retracted, ensuring the most efficient working environment for the laser transceiver port. 4. By setting up a 3D scanner in the present invention, the built - in spring inside the telescopic rod deforms more, thereby pushing out more liquid to make the telescopic protection plate extend. It can be realized that the elongation distance of the telescopic protection plate moves and is pushed in a linear manner according to the tilt angle of the laser transceiver port, with higher precision and no stepped movement. 5. By setting up a closing mechanism in the present invention, the opening of the laser transceiver port is directly closed. While protecting the laser transceiver port, it can also remind the staff that this operation is not suitable, timely avoiding accidents caused by operation errors. It can also be realized that once the laser transceiver port is placed obliquely and slips and falls, at this time, the telescopic closing plate will automatically close the opening of the laser transceiver port, preventing stones and dust from hitting into the laser transceiver port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the 3D scanner of the present invention Figure 1 ; Figure 3 is a schematic structural diagram of the 3D scanner of the present invention Figure 2 ; Figure 4 is a schematic structural diagram of the 3D scanner of the present invention Figure 3 ; Figure 5 is of the present invention Figure 4 enlarged view of part A; Figure 6 is a schematic diagram of the structural movement of the 3D scanner of the present invention Figure 1 ; Figure 7 is a schematic diagram of the structural movement of the 3D scanner of the present invention Figure 2 ; Figure 8 Schematic diagram of the closing mechanism of the present invention; Figure 9 For the present invention Figure 4 Enlarged view at position B of the present invention; Figure 10 Schematic diagram of the telescopic closing plate of the present invention.

[0014] In the figure: 1 laser transceiver port, 2 three-dimensional scanner, 3 protection mechanism, 301 top cover, 302 slide bar, 303 sliding block, 304 counterweight, 305 stop block, 306 connecting rod, 307 rotating ball, 308 telescopic rod, 309 connecting pipe, 310 fixing block, 311 telescopic protection plate, 4 closing mechanism, 401 telescopic closing plate, 402 magnetic plate, 403 elastic rope, 404 magnetic strip, 405 magnetic plate, 406 bottom ring, 5 housing. Specific implementation mode

[0015] Embodiment 1: Please refer to Figures 1-3 , the present invention provides a technical solution: a portable three-dimensional laser scanning measuring instrument, including a housing 5, inside the top of the housing 5, there is a three-dimensional scanner 2, the three-dimensional scanner 2 extends out of the top of the housing 5, on one side of the three-dimensional scanner 2 there is a laser transceiver port 1, and on the outer wall of the three-dimensional scanner 2 there is a protection mechanism 3; The protection mechanism 3 includes: Top cover 301, the top cover 301 is a circular disc structure, on the outer wall of the top cover 301 there is a fixed connection with a slide bar 302, the slide bar 302 is a circular ring structure, and the top cover 301 is used for protecting the top of the three-dimensional scanner 2; Sliding block 303, the sliding block 303 is an arc-shaped block structure, the sliding block 303 is slidably connected to the outer wall of the slide bar 302, above the sliding block 303 there is a telescopic rod 308, on one side of the top cover 301 there is a fixed connection with a telescopic protection plate 311, and the telescopic protection plate 311 is used for protecting the laser transceiver port 1; During use, place the housing 5 at the place where three-dimensional laser scanning is required, then start the three-dimensional scanner 2 extending inside the housing 5, and receive the laser information emitted to the outside through the laser transceiver port 1 on one side of the three-dimensional scanner 2 to complete the three-dimensional laser scanning work; When encountering rainy weather, rainwater is likely to adhere to the laser transceiver port 1, resulting in certain errors in information reception due to the refraction of water droplets. And when the housing 5 needs to be used in outdoor construction areas or field experiments, when placed on different flatness grounds for three-dimensional scanning, there will be a certain inclination angle between the housing 5 and the three-dimensional scanner 2. Once the three-dimensional scanner 2 has an inclination angle and causes the laser transceiver port 1 on one side of the three-dimensional scanner 2 to be lifted, then rainwater and water vapor are very likely to directly fall into the laser transceiver port 1, resulting in problems affecting the scanning detection; Embodiment 2: Please refer to Figures 1-7 , based on Embodiment 1, the present invention provides a technical solution: a counterweight block 304 is fixedly connected to the outer wall of the sliding block 303, and the counterweight block 304 is used to counterweight the sliding block 303. A stop block 305 is fixedly connected to the side of the top cover 301 away from the telescopic protection plate 311.

[0016] A connecting rod 306 is fixedly connected to the top of the sliding block 303. The top of the connecting rod 306 is rotatably connected to a rotating ball 307. The number of rotating balls 307 is two. An expansion rod 308 is fixedly connected between the two rotating balls 307. A built-in spring is arranged inside the expansion rod 308.

[0017] A communication pipe 309 is fixedly connected to the outer wall of the sliding block 303. One end of the communication pipe 309 is fixedly connected to a fixed block 310. One side of the fixed block 310 is fixedly connected to one side of the telescopic protection plate 311.

[0018] The inside of the expansion rod 308 is communicated with the inside of the communication pipe 309 through the sliding block 303, and the inside of the communication pipe 309 is communicated with the inside of the telescopic protection plate 311 through the fixed block 310; If the laser transceiver port 1 on one side of the 3D scanner 2 is in a state of being upturned at a relatively high position, then the sliding block 303 on the slide bar 302 on the outer wall of the top cover 301 will slide to a lower place by its own gravity. Through the counterweight of the counterweight block 304, a rapid sliding displacement is completed. Then, when the laser transceiver port 1 is raised, it can quickly move away from the laser transceiver port 1, and then squeeze and shorten the expansion rod 308 between the two sliding blocks 303. The liquid inside the expansion rod 308 is squeezed and enters the telescopic protection plate 311 through the communication pipe 309 and the fixed block 310, completing the automatic telescopic elongation of the telescopic protection plate 311 at this moment and automatically blocking the top of the laser transceiver port 1. Thus, while the telescopic protection plate 311 can be used to prevent dust and rain from the top of the laser transceiver port 1, it can also adaptively adjust the elongation distance of the telescopic protection plate 311 with the inclination angle between the 3D scanner 2 and the laser transceiver port 1, so that the higher the laser transceiver port 1 is lifted, the longer the telescopic protection plate 311 extends to protect the inside of the laser transceiver port 1, avoiding rain, sand, dust, etc. from falling into it and affecting the scanning accuracy. When on a flat ground, the telescopic protection plate 311 retracts to the maximum extent, so as not to occupy too much area and ensure that the laser transceiver port 1 can maximize its scanning range; If the laser transceiver port 1 and the three-dimensional scanner 2 are tilted on one side, the laser transceiver port 1 will be at different heights on the left and right. At this time, the two sliding blocks 303 on the top cover 301 will not move synchronously toward the stopper 305. One sliding block 303 will slide on the slide bar 302 and collide with the stopper 305 due to the tilt, and will be stopped by the stopper 305, while the other sliding block 303 will slide on the slide bar 302 to the position between the telescopic protective plate 311 and the stopper 305 and stop. At this time, the position of the laser transceiver port 1 is not tilted, and one sliding block 303 is close to the stopper 305. The other sliding block 303 of the stopper 305 is away from the stopper 305, so that the telescopic rod 308 is almost not compressed. At this time, the telescopic protective plate 311 will not be pushed by the liquid inside the telescopic rod 308 to extend to block the laser transceiver port 1. The mechanism can accurately identify whether the laser transceiver port 1 and the three-dimensional scanner 2 are tilted upward, and the extension of the telescopic protective plate 311 is used in real time to ensure the shielding and protection of the laser transceiver port 1. The left and right tilts will not affect the telescopic protective plate 311, so that the telescopic protective plate 311 is still retracted, ensuring the most efficient working environment of the laser transceiver port 1. The telescopic rod 308 is provided with a built-in spring inside, so when the laser transceiver port 1 is at an upward lifting angle, the higher the lifting angle is, the closer the two sliding blocks 303 are to the stopper 305, the greater the degree of squeezing of the telescopic rod 308 is, and the greater the deformation of the built-in spring inside the telescopic rod 308 is, so that more liquid is pushed out to extend the telescopic protective plate 311, and the extension distance of the telescopic protective plate 311 can be moved and pushed linearly with the inclination angle of the laser transceiver port 1, with higher precision and no step-like movement; Example 3: Please refer to Figures 1-10 On the basis of the first and second embodiments, the present invention provides a technical solution: a closing mechanism 4 is provided on the top of the three-dimensional scanner 2, the closing mechanism 4 includes a bottom ring 406, the bottom of the bottom ring 406 is fixedly connected to the top of the three-dimensional scanner 2, a telescopic closing plate 401 is fixedly connected to the top of the bottom ring 406, and a magnetic plate 402 is fixedly connected to one side of the telescopic closing plate 401.

[0019] An elastic rope 403 is fixedly connected to the top of the magnetic plate 402, and one end of the elastic rope 403 is fixedly connected to the center of one side of the telescopic protective plate 311. There are two magnetic plates 402, and the magnetism of the two magnetic plates 402 close to each other is that opposite poles attract each other.

[0020] A magnetic strip 404 is fixedly connected to one side of the magnetic plate 402, and one end of the magnetic strip 404 contacts a magnetic plate 405. The bottom of the magnetic plate 405 is fixedly connected to the bottom of the telescopic closing plate 401. The side of the magnetic plate 405 and the magnetic strip 404 that are close to each other are magnetic and attract each other with opposite poles. When the inclination angle between the laser transceiver port 1 and the 3D scanner 2 is too large, the slider 303 will be completely attached to the stop block 305 by the counterweight of the counterweight block 304 at this time. The built-in spring inside the telescopic rod 308 is squeezed to the maximum. At this time, the telescopic protection plate 311 is completely pushed out. The elastic rope 403 at the bottom of the telescopic protection plate 311 pulls the magnetic plate 402. At this time, the elastic rope 403 is stretched and deformed too much, and the force pulling the magnetic plate 402 is greater than the magnetic attraction between the magnetic strip 404 and the magnetic plate 405. Then the magnetic strip 404 is separated from the magnetic attraction of the magnetic plate 405 and is quickly pulled by the elastic rope 403. The left and right magnetic plates 402 and the telescopic closing plate 401 are simultaneously pulled quickly and collide with each other due to inertia. They are magnetically attracted to each other through the opposite pole attraction of the magnetic plates 402 between them, and the opening of the laser transceiver port 1 is directly closed. This situation is applicable when the inclination angle is too large and not suitable for 3D laser measurement. It can automatically close the laser transceiver port 1, protect the laser transceiver port 1, and at the same time give a reminder to the staff that this operation is not suitable, timely avoid accidents caused by operation errors, and can also achieve that once the laser transceiver port 1 is placed obliquely and slips and falls, at this time the telescopic closing plate 401 will automatically close the opening of the laser transceiver port 1 to prevent stones and dust from hitting into the laser transceiver port 1.

[0021] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A portable three-dimensional laser scanning measuring instrument, comprising a housing (5). Inside the top of the housing (5), a three-dimensional scanner (2) is provided. The three-dimensional scanner (2) extends out of the top of the housing (5). A laser transceiver port (1) is provided on one side of the three-dimensional scanner (2), characterized in that: A protection mechanism (3) is provided on the outer wall of the three-dimensional scanner (2); The protection mechanism (3) includes: A top cover (301), the top cover (301) is a circular disc-shaped structure, a slide bar (302) is fixedly connected to the outer wall of the top cover (301), the slide bar (302) is a circular ring-shaped structure, and the top cover (301) is used for protecting the top of the three-dimensional scanner (2); A sliding block (303), the sliding block (303) is an arc-shaped block structure, the sliding block (303) is slidably connected to the outer wall of the slide bar (302), a telescopic rod (308) is arranged above the sliding block (303), and a telescopic protection plate (311) is fixedly connected to one side of the top cover (301), and the telescopic protection plate (311) is used for protecting the laser transceiver port (1).

2. The portable three-dimensional laser scanning measuring instrument according to claim 1, characterized in that: A counterweight block (304) is fixedly connected to the outer wall of the sliding block (303), and the counterweight block (304) is used to counterweight the sliding block (303), and a stop block (305) is fixedly connected to one side of the top cover (301) away from the telescopic protection plate (311).

3. A portable three-dimensional laser scanning measuring instrument according to claim 2, characterized in that: A connecting rod (306) is fixedly connected to the top of the sliding block (303), a rotating ball (307) is rotatably connected to the top of the connecting rod (306), the number of the rotating balls (307) is two, and a telescopic rod (308) is fixedly connected between the two rotating balls (307), and a built-in spring is arranged inside the telescopic rod (308).

4. A portable three-dimensional laser scanning measuring instrument according to claim 3, characterized in that: A communicating pipe (309) is fixedly connected to the outer wall of the sliding block (303), one end of the communicating pipe (309) is fixedly connected to a fixed block (310), and one side of the fixed block (310) is fixedly connected to one side of the telescopic protection plate (311).

5. A portable three-dimensional laser scanning measuring instrument according to claim 4, characterized in that: The inside of the telescopic rod (308) is communicated with the inside of the communicating pipe (309) through the sliding block (303), and the inside of the communicating pipe (309) is communicated with the inside of the telescopic protection plate (311) through the fixed block (310).

6. The portable three-dimensional laser scanning measuring instrument according to claim 5, characterized in that: A closing mechanism (4) is provided on the top of the three-dimensional scanner (2), the closing mechanism (4) includes a bottom ring (406), the bottom of the bottom ring (406) is fixedly connected to the top of the three-dimensional scanner (2), and a telescopic closing plate (401) is fixedly connected to the top of the bottom ring (406), and a magnetic plate (402) is fixedly connected to one side of the telescopic closing plate (401).

7. A portable three-dimensional laser scanning measuring instrument according to claim 6, characterized in that: An elastic rope (403) is fixedly connected to the top of the magnetic plate (402), one end of the elastic rope (403) is fixedly connected to the center of one side of the telescopic protection plate (311), the number of the magnetic plates (402) is two, and the magnetic poles on the mutually approaching sides of the two magnetic plates (402) attract each other with opposite polarities.

8. A portable three-dimensional laser scanning measuring instrument according to claim 7, characterized in that: A magnetic strip (404) is fixedly connected to one side of the magnetic plate (402), one end of the magnetic strip (404) contacts a magnetic plate (405), the bottom of the magnetic plate (405) is fixedly connected to the bottom of the telescopic closing plate (401), and the mutually approaching sides of the magnetic plate (405) and the magnetic strip (404) have magnetism and attract each other with opposite polarities.

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