Multi-wavelength handheld three-dimensional laser scanner
By introducing a telescopic mechanism and a gripping mechanism into a multi-wavelength handheld three-dimensional laser scanner, the problems of equipment safety and operation efficiency are solved, the stable grip of the equipment and the expansion of the scanning area are achieved, and the operation convenience and safety are improved .
Patent Information
- Application Number
- CN202420871757.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing multi-wavelength handheld three-dimensional laser scanners lack safety protection functions, and traditional wavelength handheld three-dimensional laser scanners cannot save effort and expand scanning area through convenient handheld telescopic mechanisms, and improve efficiency.
A multi-wavelength handheld three-dimensional laser scanner including a casing, a punctuation camera, a laser, an LED lamp, a laser camera, a telescopic mechanism and a gripping mechanism are designed to achieve safe protection and convenient operation of the equipment through a telescopic mechanism and a gripping mechanism. The telescopic mechanism uses upper reeds, lower reeds, grooved sliders and T-shaped sliders to achieve expansion and contraction of the inner shell, reducing operating force; the gripping mechanism provides a stable grip handle through seat belts, fixed piles, extension blocks and crossbars. , prevent equipment from falling.
Effectively protect the equipment from being easily damaged, reduce the labor intensity of operators, increase the scanning area and efficiency, and provide better safety and convenient operating experience.
Smart Images
Figure CN222279679U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of three-dimensional laser scanners, in particular to a multi-wavelength handheld three-dimensional laser scanner. Background Art
[0002] A multi-wavelength handheld 3D laser scanner is an advanced instrument that can be used to quickly and accurately obtain the 3D shape and surface details of an object. This scanner usually combines multiple technologies such as laser projection, optical imaging, and computer vision to achieve high-resolution and high-precision 3D scanning. Specifically, this multi-wavelength handheld 3D laser scanner may have the following features and functions: Multi-wavelength laser projection: It uses multiple wavelengths (such as red, green, and blue) laser light sources to obtain more surface reflection information and improve the accuracy and robustness of the scan. Handheld design: The device has a lightweight and compact structure, which is convenient for operators to use by hand, and supports fast handheld scanning, which is suitable for scenes that require mobile scanning. High-speed and high-resolution scanning: With fast data acquisition speed and high resolution, high-fidelity 3D scanning of complex surfaces can be achieved. Autofocus and auto-exposure functions: Through the autofocus and auto-exposure functions, it can adapt to the scanning requirements under different distances and ambient lighting conditions, making the scanning process more convenient. Data processing and visualization: It uses advanced data processing algorithms to quickly and accurately process large amounts of 3D data and provide intuitive visualization results such as point clouds, polygonal meshes, etc. Widely applicable: It can be applied to industrial manufacturing, mold design, cultural relics protection, architectural measurement, medical beauty and other fields to obtain the three-dimensional shape and structure information of objects.
[0003] However, the previous multi-wavelength handheld 3D laser scanners had no safety measures. If the operator made a mistake, the instrument would be easily damaged. Secondly, the traditional wavelength handheld 3D laser scanners could not save the workers' effort to repeatedly scan the same position through a more convenient handheld telescopic mechanism, and expand the scanning area to improve efficiency. Utility Model Content
[0004] In order to make up for the above deficiencies, the utility model provides a multi-wavelength handheld three-dimensional laser scanner, which improves the problems that the traditional multi-wavelength handheld three-dimensional laser scanner has no safety protection function and a small scanning area.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a casing, a plurality of marking cameras are arranged on the upper part of one side of the casing, a plurality of lasers are arranged on the upper middle part of one side of the casing, a plurality of LED lights are arranged on the lower middle part of one side of the casing, a plurality of laser cameras are arranged on the lower end of one side of the casing, a telescopic mechanism is fixedly connected to the middle part of one side of the casing, and a holding mechanism is fixedly connected to one end of the telescopic mechanism.
[0006] Through the above technical solution, the laser is used to generate and project a laser beam onto the surface of the scanned object to assist in measurement and data collection. Multi-wavelength lasers can generate laser beams of multiple wavelengths to obtain different spectral information and improve scanning accuracy. LED lights are used to provide appropriate lighting for the point camera to ensure that high-quality images can be obtained under various indoor and outdoor lighting conditions. LED lights can also be used to assist in the lighting of laser scanning. The laser camera is used to receive the light signal reflected from the laser beam emitted by the laser, and calculate the three-dimensional coordinates of each point on the surface of the scanned object by detecting the time difference of the reflected light, thereby generating point cloud data. The point camera is used to capture the external surface of the scanned object and obtain point cloud data.
[0007] Furthermore, the telescopic mechanism includes an outer shell, one end of the outer shell is fixedly connected to an outer cover, the middle of the outer cover is slidably connected to a pressing block, the inner wall of the outer shell is slidably connected to an inner shell, one end of the inner shell is fixedly connected to the casing, the lower end of the outer shell is fixedly connected to a fixed body, and the middle of the upper end of the fixed body is fixedly connected to a slide plate.
[0008] Through the above technical solution, the outer shell provides a position for the inner shell to slide, the outer cover provides a position for the pressing block to slide, and ensures the beauty of the device and protects the components inside the outer cover. The inner shell is slidably connected to the inner wall of the outer shell to ensure the normal extension and shortening of the telescopic mechanism. The fixed body can make the entire device more secure, and its shape is more suitable for people to grasp. The slide plate provides a sliding position for the sliding component at its upper end, which ensures the normal extension and contraction of the telescopic mechanism.
[0009] Furthermore, a plurality of bottom driving plates are fixedly connected to a lower end of one side of the inner shell, a plurality of grooved sliders are fixedly connected to one end of the plurality of bottom driving plates, and upper spring sheets are arranged in the grooves of the plurality of grooved sliders.
[0010] Through the above technical solution, the bottom driving plate ensures the pushing and pulling of the inner shell, so that the inner shell is pushed outward by the bottom driving plate when the pressing block is pressed. When the pressing block is released after pressing, it receives the pulling force of the bottom driving plate and moves inward, achieving the purpose of expansion and contraction. The grooved slider ensures that the force of the upper spring leaf is transmitted to the bottom driving plate, and the upper spring leaf can be compressed repeatedly. When the upper spring leaf is compressed, the two ends will move to the sides, ensuring the purpose of squeezing and pushing the grooved slider. Due to its own elasticity, when the pressing block is released, it will rebound, driving the grooved slider to move inward.
[0011] Furthermore, a fixing block is fixedly connected to the middle part of the upper end of the slide plate, a lower spring sheet is fixedly connected to the upper end of the fixing block, and the upper end of the lower spring sheet is slidably connected to the pressing block.
[0012] Through the above technical solution, the fixing block is used to fix the lower spring leaf, and the lower spring leaf can indirectly drive the inner shell to move.
[0013] Furthermore, a plurality of T-shaped grooves are formed at the bottom end of the pressing block, one end of the plurality of T-shaped grooves is slidably connected to a T-shaped slider, and one end of the T-shaped slider is fixedly connected to the inner shell.
[0014] Through the above technical solution, the T-shaped groove provides a sliding position for the T-shaped slider, and the T-shaped slider can drive the movement of the inner shell when the lower spring sheet is squeezed by the pressing block.
[0015] Furthermore, the holding mechanism includes a fixing plate, and a plurality of the fixing plates are provided, a plurality of cross bars are fixedly connected to the rear ends of one side of the plurality of fixing plates, an extension block is fixedly connected to one side of the plurality of fixing plates, a fixing pile is fixedly connected to the middle of the plurality of extension blocks, a safety belt is fixedly connected to one end of the plurality of fixing piles, and the fixing plate is fixedly connected to the outer shell.
[0016] Through the above technical solution, the fixed plate, the crossbar, and the extension plate form a fixed frame, ensuring that the back of the hand of the staff has a place in the hand when using the instrument, which is safer and more labor-saving. The safety belt can be wrapped around the user's arm to prevent the device from falling off.
[0017] Furthermore, the upper spring sheet is fixedly connected to the bottom end of the pressing block, and the bottom end of the grooved sliding block is slidably connected to the sliding plate.
[0018] Through the above technical solution, the upper spring piece is fixedly connected to the bottom end of the pressing block, in order to provide a fulcrum for the upper spring piece to ensure its stability during operation. The bottom end of the slotted slider is slidably connected to the slide plate to ensure the normal expansion and contraction of the upper spring piece.
[0019] The utility model has the following beneficial effects:
[0020] In the utility model, the inner shell is squeezed by the upper spring sheet, the lower spring sheet and the slotted slide block of the telescopic mechanism, so that the inner shell can move in the outer shell. Due to the elasticity of the upper spring sheet and the lower spring sheet, when the pressing block is released, it will rebound, so that the inner shell moves back and forth, thereby achieving the purpose of saving workers' labor and increasing the scanning area.
[0021] In the utility model, the safety belt, fixed pile, extension block and cross bar of the holding mechanism ensure that the worker can hold the column instrument more easily when using the instrument, and the safety belt also ensures that the worker will not drop the instrument by mistake, thereby achieving the purpose of better protecting the instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a front view of a multi-wavelength handheld three-dimensional laser scanner proposed by the utility model;
[0023] Figure 2 This is a rear view of a multi-wavelength handheld three-dimensional laser scanner proposed by the utility model;
[0024] Figure 3 This is a partial structural disassembly diagram of a multi-wavelength handheld three-dimensional laser scanner proposed by the utility model;
[0025] Figure 4 It is a partial schematic diagram of a telescopic mechanism of a multi-wavelength handheld three-dimensional laser scanner proposed by the utility model;
[0026] Figure 5 This is a disassembly diagram of a telescopic mechanism of a multi-wavelength handheld three-dimensional laser scanner proposed by the utility model;
[0027] Figure 6 The present invention is a schematic diagram of a holding mechanism of a multi-wavelength handheld three-dimensional laser scanner.
[0028] Legend:
[0029] 1. Marking camera; 2. Laser; 3. Telescopic mechanism; 301. Fixed body; 302. Outer shell; 303. Inner shell; 304. Slider with groove; 305. Fixed block; 306. Lower spring leaf; 307. Upper spring leaf; 308. Outer cover; 309. Bottom driving plate; 310. T-shaped slider; 311. Pressing block; 312. T-shaped groove; 313. Slide plate; 4. Holding mechanism; 401. Safety belt; 402. Fixed pile; 403. Extension block; 404. Fixed plate; 405. Crossbar; 5. Casing; 6. LED light; 7. Laser camera. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Reference Figure 1-Figure 3 The utility model provides an embodiment: a multi-wavelength handheld three-dimensional laser scanner, including a casing 5, a plurality of marking cameras 1 are arranged on the upper part of one side of the casing 5, a plurality of lasers 2 are arranged on the upper middle part of one side of the casing 5, a plurality of LED lights 6 are arranged on the lower middle part of one side of the casing 5, a plurality of laser cameras 7 are arranged on the lower end of one side of the casing 5, a telescopic mechanism 3 is fixedly connected to the middle part of one side of the casing 5, and a holding mechanism 4 is fixedly connected to one end of the telescopic mechanism 3.
[0032] Laser 2 is used to generate and project a laser beam onto the surface of the scanned object to assist in measurement and data collection. Multi-wavelength laser 2 can generate laser beams of multiple wavelengths to obtain different spectral information and improve scanning accuracy. LED lamp 6 is used to provide appropriate lighting for the mark camera 1 to ensure that high-quality images can be obtained under various indoor and outdoor lighting conditions. LED lamp 6 can also be used to assist in laser scanning lighting. Laser camera 7 is used to receive the light signal reflected from the laser beam emitted by laser 2, and calculate the three-dimensional coordinates of each point on the surface of the scanned object by detecting the time difference of the reflected light, thereby generating point cloud data. Mark camera 1 is used to capture the external surface of the scanned object and obtain point cloud data.
[0033] Reference Figure 4-Figure 6The telescopic mechanism 3 includes a shell 302, one end of which is fixedly connected to an outer cover 308, a pressing block 311 is slidably connected to the middle of the outer cover 308, an inner shell 303 is slidably connected to the inner wall of the shell 302, one end of the inner shell 303 is fixedly connected to the housing 5, a fixed body 301 is fixedly connected to the lower end of the shell 302, and a slide plate 313 is fixedly connected to the middle of the upper end of the fixed body 301. Multiple bottom driving plates 309 are fixedly connected to the lower ends of both sides of the inner shell 303, multiple grooved sliders 304 are fixedly connected to one end of the multiple bottom driving plates 309, and upper springs 307 are arranged in the grooves of the multiple grooved sliders 304. A fixed block 305 is fixedly connected to the middle of the upper end of the slide plate 313, and a lower spring 306 is fixedly connected to the upper end of the fixed block 305, and the upper end of the lower spring 306 is slidably connected to the pressing block 311. The bottom end of the pressing block 311 is provided with a plurality of T-shaped grooves 312, one end of the plurality of T-shaped grooves 312 is slidably connected to a T-shaped slider 310, one end of the plurality of T-shaped sliders 310 is fixedly connected to the inner shell 303. The holding mechanism 4 comprises a plurality of fixing plates 404, a plurality of fixing plates 404 are provided, a cross bar 405 is fixedly connected to one rear end of one side of the plurality of fixing plates 404, an extension block 403 is fixedly connected to one side of the plurality of fixing plates 404, a fixing pile 402 is fixedly connected to the middle of the plurality of extension blocks 403, one end of the plurality of fixing piles 402 is fixedly connected to a safety belt 401, and the fixing plate 404 is fixedly connected to the outer shell 302. The upper spring sheet 307 is fixedly connected to the bottom end of the pressing block 311, and the bottom ends of the plurality of grooved sliders 304 are slidably connected to the slide plate 313.
[0034] The outer shell 302 provides a position for the sliding of the inner shell 303, and the outer cover 308 provides a position for the sliding of the pressing block 311, and ensures the beauty of the device and protects the components inside the outer cover 308. The inner shell 303 is slidably connected to the inner wall of the outer shell 302 to ensure the normal extension and shortening of the telescopic mechanism 3. The fixed body 301 can make the entire device more solid, and its shape is more suitable for people to grasp. The slide plate 313 provides a sliding position for the sliding components at its upper end, which provides a guarantee for the normal extension and contraction of the telescopic mechanism 3. The bottom driving plate 309 ensures the pushing and pulling of the inner shell 303, so that the inner shell 303 is pushed by the bottom driving plate 309 when pressing the pressing block 311 and moves outward. When the pressing block 311 is pressed and released, it receives the pulling force of the bottom driving plate 309 and moves inward, achieving the purpose of extension and contraction. The slotted slider 304 ensures that the force of the upper spring 307 is transmitted to the bottom driving plate 309, and the upper spring 307 can be repeatedly compressed. When the upper spring 307 is pressed, the two ends will move to both sides to ensure the purpose of squeezing and pushing the slotted slider 304. Due to its own elasticity, when the pressing block 311 is released, it will rebound and drive the slotted slider 304 to move inward. The fixed block 305 is used to fix the lower spring 306, and the lower spring 306 can indirectly push the inner shell 303 to move. The T-shaped groove 312 provides a sliding position for the T-shaped slider 310. The T-shaped slider 310 can drive the movement of the inner shell 303 when the lower spring 306 is squeezed by the pressing block 311. The fixed plate 404, the crossbar 405, and the extension plate 403 form a fixed frame to ensure that the back of the hand of the staff has a position in the hand when using the instrument, which is safer and more labor-saving. The safety belt 401 can be wrapped around the user's arm to prevent the device from falling off. The upper spring piece 307 is fixedly connected to the bottom end of the pressing block 311, and the purpose is to provide a fulcrum for the upper spring piece 307 to ensure its stability during operation. The bottom end of the grooved slider 304 is slidably connected to the slide plate 313 to ensure the normal expansion and contraction of the upper spring piece 307.
[0035] Working principle: First, turn on the instrument, put the marking camera 1, laser 2, laser camera 7, and LED light 6 in working state, wrap the safety belt 401 around the hand or arm to ensure that the instrument will not fall off accidentally, then put the hand into the frame composed of the extension block 403, the fixing plate 404, and the crossbar 405, grab the outer cover 308 of the telescopic mechanism 3, and press the pressing block 311 by hand. The pressing block 311 will squeeze the upper spring leaf 307 and the lower spring leaf 306, and the upper spring leaf 307 and the lower spring leaf 306 will squeeze the inner shell 303 by squeezing the grooved slider 304 and the T-shaped slider 310 respectively, so as to achieve the telescopic function. It allows workers to scan back and forth, saving effort and increasing the scanning area.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multi-wavelength handheld three-dimensional laser scanner, comprising a housing (5), characterized in that: A plurality of marking cameras (1) are arranged on an upper portion of one side of the casing (5), a plurality of lasers (2) are arranged on an upper middle portion of one side of the casing (5), a plurality of LED lights (6) are arranged on a lower middle portion of one side of the casing (5), a plurality of laser cameras (7) are arranged on a lower end of one side of the casing (5), a telescopic mechanism (3) is fixedly connected to the middle portion of one side of the casing (5), and a holding mechanism (4) is fixedly connected to one end of the telescopic mechanism (3).
2. The multi-wavelength handheld three-dimensional laser scanner according to claim 1, characterized in that: The telescopic mechanism (3) comprises an outer shell (302), one end of the outer shell (302) is fixedly connected to an outer cover (308), a middle portion of the outer cover (308) is slidably connected to a pressing block (311), an inner wall of the outer shell (302) is slidably connected to an inner shell (303), one end of the inner shell (303) is fixedly connected to a casing (5), a lower end of the outer shell (302) is fixedly connected to a fixed body (301), and a middle portion of an upper end of the fixed body (301) is fixedly connected to a sliding plate (313).
3. The multi-wavelength handheld three-dimensional laser scanner according to claim 2, characterized in that: A plurality of bottom driving plates (309) are fixedly connected to the lower ends of both sides of the inner shell (303), a plurality of grooved sliders (304) are fixedly connected to one end of the plurality of bottom driving plates (309), and upper spring sheets (307) are arranged in the grooves of the plurality of grooved sliders (304).
4. The multi-wavelength handheld three-dimensional laser scanner according to claim 2, characterized in that: A fixing block (305) is fixedly connected to the middle of the upper end of the slide plate (313), a lower spring sheet (306) is fixedly connected to the upper end of the fixing block (305), and the upper end of the lower spring sheet (306) is slidably connected to the pressing block (311).
5. The multi-wavelength handheld three-dimensional laser scanner according to claim 2, characterized in that: A plurality of T-shaped grooves (312) are provided on both sides of the bottom end of the pressing block (311), one end of the plurality of T-shaped grooves (312) is slidably connected to a T-shaped slider (310), and one end of the plurality of T-shaped sliders (310) is fixedly connected to the inner shell (303).
6. The multi-wavelength handheld three-dimensional laser scanner according to claim 1, characterized in that: The holding mechanism (4) comprises a fixing plate (404), wherein a plurality of the fixing plates (404) are provided, a cross bar (405) is fixedly connected to one side rear end of the plurality of fixing plates (404), an extension block (403) is fixedly connected to one side of the plurality of fixing plates (404), a fixing pile (402) is fixedly connected to the middle of the plurality of extension blocks (403), a safety belt (401) is fixedly connected to one end of the plurality of fixing piles (402), and the plurality of fixing plates (404) are fixedly connected to the outer shell (302).
7. The multi-wavelength handheld three-dimensional laser scanner according to claim 3, characterized in that: The upper spring sheet (307) is fixedly connected to the bottom end of the pressing block (311), and the bottom ends of the plurality of grooved sliding blocks (304) are slidably connected to the sliding plate (313).