High-definition level gauge for built-in micrometer device
By incorporating a built-in micrometer and an optimized optical design, the high-definition level instrument solves the problem of optical flats not being on the same optical axis, achieving higher precision measurements and adapting to accurate measurements in harsh environments.
Patent Information
- Application Number
- CN202423197864.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing automatic leveling instrument's main body and external micrometer optical flat are not on the same optical axis, causing the telescope system's center to be off-center from the optical path, resulting in measurement errors and affecting measurement accuracy.
It employs a built-in micrometer device, using gears and racks to convert the rotational angular quantity of the optical flat glass into a linear quantity, which is then magnified and subdivided by a flat micrometer. Observation is performed in conjunction with a reading microscope assembly. Furthermore, it utilizes special optical glass and waterproof coating technology, and optimizes the optical design to improve accuracy.
The measurement accuracy of the level has been improved, making it suitable for higher measurement levels. It can accurately measure in harsh environments such as high temperature, high humidity, and rainy days, thus enhancing the instrument's adaptability and measurement efficiency.
Smart Images
Figure CN223512739U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to level gauge technical field especially is related to a high definition level gauge for built-in micrometer device. BACKGROUND
[0002] Level gauge is the establishment horizontal line of sight and determines the height difference between two points on the ground, and the principle is to measure the height difference between points on the ground according to the principle of level measurement, and the main components include telescope, tube level (or compensator), vertical shaft, base, foot screw, divided into microtilt level, automatic level, laser level and digital level (also known as electronic level) according to structure, at present, in general, high-precision level instrument is used in national second and third level measurement, construction engineering measurement, deformation and settlement monitoring, mine surveying, large machine installation, tool processing measurement and precision engineering measurement, generally, high-precision second automatic level is used with flat plate micrometer accessories, and the accidental error of height difference measurement per kilometer round trip is generally between 0.5mm and 1mm, and the advantage is high measurement precision, and the automatic level can be automatically leveled.
[0003] The prior art in the above has the following defects: the body of the existing automatic leveling instrument and the external micrometer optical flat are not on the same optical axis, so the installation will cause the center of the telescope system not to be in the center of the optical path, and measurement errors are easy to occur, and the error caused by the inaccuracy of aiming at the target rod is also caused, which affects the measurement precision. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a high definition level gauge for built-in micrometer device.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A high definition level gauge for built-in micrometer device, including base, the lateral installation of base has level gauge body, one end outside level gauge body is fixedly connected with protection glass, the other end outside level gauge body is detachably connected with eyepiece assembly through bolt, the inside installation of level gauge body has rack, the outside installation of level gauge body has gear at the outside of rack, the outside installation of level gauge body has micrometer hand wheel, the inside of level gauge body is provided with rack bar, the inside fixed connection of level gauge body has limit block, the outside of level gauge body is provided with swing frame.
[0007] By adopting the above technical scheme, the rotation angle of the optical flat glass is converted into linear quantity by the gear and the rack, and then is amplified and subdivided by the flat plate micrometer, and the result is obtained by observing through the reading eyepiece assembly 7, which has the advantages of simple structure, convenient reading, high accuracy, small size, etc., and can be used to improve the measurement accuracy of the level instrument, adapt to higher measurement level, and be applied to engineering construction, foundation, terrain, highway measurement, etc.
[0008] Further, a large objective lens assembly and a focusing lens are mounted in the center of the level instrument body, and a compensator is arranged between the focusing lens and the eyepiece assembly.
[0009] By adopting the above technical scheme, the front protective glass of the instrument is made of special optical glass material, and the waterproof coating technology is adopted, so that the instrument can accurately measure in high temperature and high humidity and rainy days, and truly achieve all-weather use, large aperture, large magnification, high-precision long-distance aiming, and greatly improve the measurement efficiency and accuracy; effective light collection in dim environment or insufficient light, accurate measurement, and better fine observation effect can be brought to the measurer at the same observation distance as other level instruments.
[0010] Further, a micrometer reading eyepiece is mounted on one side of the level instrument body close to the eyepiece assembly, a flat plate micrometer is mounted on the outside of the level instrument body close to the micrometer reading eyepiece, and a micrometer reading prism is mounted on the outside of the flat plate micrometer.
[0011] By adopting the above technical scheme, the micrometer reading prism facilitates the micrometer reading eyepiece assembly to read the scale on the flat plate micrometer.
[0012] Further, the optical flat glass is clamped and connected in the level instrument body, both ends of the optical flat glass extend to the outside of the level instrument body through the level instrument body, and are rotatably connected with the level instrument body through bearings, and one end of the swing frame and the optical flat glass extending to the outside of the level instrument body is fixedly connected.
[0013] By adopting the technical scheme, the optical flat glass adopts a whole circle design (in China, the edges of the circular glass are generally cut, which causes a large amount of light to enter, affects brightness, and increases stray light entering), is completely optimized to the same type of product, maximally receives light, and enables the instrument to be well used in a dark environment, prevents the cutting of the side glass from causing uneven brightness and edge stray light to affect the use feeling of the product and further affect the measurement accuracy, the swing frame of the optical flat glass adopts a flat position design, effectively prevents the clearance in the rotating process from affecting the measurement, effectively prevents the rotation from slipping and affecting the use, the elastic sheet is generally used to press the linkage rod in China, the elastic sheet is prone to deformation after long-time use, affects the measurement accuracy, and the elasticity of the elastic sheet changes when the temperature changes, which also affects the measurement accuracy.
[0014] Further, the micrometer reading prism is arranged at the lower end of the flat micrometer, the rack and the gear are in meshing connection, the micrometer hand wheel and the level body are in rotary connection through a bearing, one end of the micrometer hand wheel and the gear is fixedly connected, one end of the rack and the toothed rod is in meshing connection, and the other end of the toothed rod is fixedly connected with the outer side of the swing frame.
[0015] By adopting the technical scheme, all the connecting transmission components adopt copper stress relief structures, so that the instrument can achieve the same measurement accuracy in different temperature environments, and the adaptability to the environment is stronger.
[0016] In conclusion, the beneficial technical effects of the utility model are as follows:
[0017] The protective glass, the optical flat glass, the micrometer reading prism, the flat micrometer, the rack, the gear, the micrometer hand wheel, the toothed rod and the swing frame are adopted, the reading of the level is accurate to 0.1 mm, the measurement accuracy of the level is improved, the level is applicable to first and second order leveling measurement, the integrated independent component design facilitates assembly, adjustment, maintenance and the like, the compact structure, large magnification and large light transmission enable 1 mm scale to be finely read at a long distance (100 m), the measurement and construction efficiency is effectively improved, better fine observation effect is provided for accurate measurement, the protective glass adopts special optical glass material and a waterproof plating film technology, the instrument can accurately measure in high temperature and high humidity and rainy days, and truly achieves all-weather use, the optical flat glass adopts a whole circle design, is completely optimized to the same type of product, maximally receives light, and maximally improves the measurement accuracy, the unique triangular guide rail design is simple in structure, small in size, stable in transmission, all the connecting transmission components adopt copper stress relief structures, so that the instrument can achieve the same measurement accuracy in different temperature environments, and the adaptability to the environment is stronger, the connecting plate of the optical flat glass rotation adopts a flat position design, effectively prevents the clearance in the rotating process from affecting the measurement, effectively prevents the rotation from slipping, and produces the effect of facilitating use. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a sectional structure schematic view of the utility model;
[0019] Figure 2 is a three-dimensional structure schematic view of the utility model;
[0020] Figure 3 is a principle schematic view of the utility model Figure 1 ;
[0021] Figure 4 is a principle schematic view of the utility model Figure 2 .
[0022] In the figure, 1, protective glass; 2, optical flat glass; 3, large objective lens assembly; 4, focusing mirror; 5, rear fixed group; 6, compensator; 7, eyepiece assembly; 8, level body; 9, base; 10, micrometer reading ocular; 11, micrometer reading prism; 12, flat plate micrometer; 13, rack; 14, gear; 15, micrometer hand wheel; 16, rack bar; 17, limit block; 18, swing frame. DETAILED DESCRIPTION
[0023] The utility model will be further explained in detail in connection with the drawings.
[0024] Referring to Figures 1-4 , a high-definition level for built-in micrometer device, including base 9, the outer side of base 9 is installed with level body 8, one end of the outer side of level body 8 is fixedly connected with protective glass 1, the other end of the outer side of level body 8 is detachably connected with eyepiece assembly 7 through bolt, the inside of level body 8 is installed with rack 13, the inside of level body 8 is installed with gear 14 at the outside of rack 13, the outside of level body 8 is installed with micrometer hand wheel 15, the inside of level body 8 is provided with rack bar 16, the inside of level body 8 is fixedly connected with limit block 17, the outside of level body 8 is provided with swing frame 18, the inside of level body 8 is installed with large objective lens assembly 3, focusing mirror 4 and rear fixed group 5 in the center, the inside of level body 8 is provided with compensator 6 between rear fixed group 5 and eyepiece assembly 7, the inside of level body 8 is installed with micrometer reading ocular 10 on the side close to eyepiece assembly 7, the inside of level body 8 is installed with flat plate micrometer 12 on the outside close to micrometer reading ocular 10, the inside of level body 8 is installed with micrometer reading prism 11 on the outside of flat plate micrometer 12;
[0025] The micrometer reading prism 11 is used for recording the parallel movement of light on the coded scale, the micrometer reading prism 11 is fixedly arranged on one side of the flat plate micrometer 12 and parallel to the flat plate micrometer 12, according to the principle of light path imaging, the reading on the flat plate micrometer 12 can be read through the micrometer reading ocular 10, that is, the scale number pointed by the graduation line on the flat plate micrometer 12, the optical imaging assembly including the large objective assembly 3, the focusing mirror 4, the rear fixed group 5, the compensator 6 and the ocular assembly 7 is further arranged in the level body 8, the optical imaging assembly is fixedly arranged between the optical flat glass 2 and the flat plate micrometer 12, and is used for magnifying the scale value on the coded scale, so that the reading on the coded scale is facilitated.
[0026] As shown in Figures 1-4 The optical flat glass 2 is clamped and connected in the level body 8, both ends of the outer side of the optical flat glass 2 extend to the outer side of the level body 8 through the level body 8 and are rotatably connected with the level body 8 through bearings, one end of the swing frame 18 and the optical flat glass 2 extending to the outer side of the level body 8 is fixedly connected, the micrometer reading prism 11 is arranged at the lower end of the flat plate micrometer 12, the rack 13 and the gear 14 are meshingly connected, the micrometer hand wheel 15 and the level body 8 are rotatably connected through bearings, one end of the micrometer hand wheel 15 and the gear 14 is fixedly connected, one end of the rack 13 and the toothed rod 16 is meshingly connected, the other end of the toothed rod 16 is fixedly connected with the outer side of the swing frame 18;
[0027] When the toothed rod 16 is displaced in the horizontal direction, the optical flat glass 2 is driven to rotate counterclockwise away from the line connecting the two bearings, so that the light passing through the optical flat glass 2 is parallelly moved in the vertical direction, the graduation line on the coded scale is moved to the position coinciding with the centimeter scale line, and the rotation angle of the optical flat glass 2 is converted into linear displacement.
[0028] The implementation principle of the embodiment is that the micrometer hand wheel 15 drives the gear 14 to rotate, at the same time, the gear 14 drives the rack 13 to move in the horizontal direction, so that the optical flat glass 2 is rotated by a certain angle by the toothed rod 16, when the cross graduation line on the coded scale is moved to coincide with the centimeter scale line, the whole scale on the coded scale and the reading on the flat plate micrometer 12 are recorded through the micrometer reading ocular 10 respectively, and the sum of the two is the accurate reading of the level.
[0029] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A high-precision level for built-in micrometers, comprising a base (9), characterized in that: The outside of the base (9) is provided with a level body (8), one end of the outside of the level body (8) is fixedly connected with a protective glass (1), the other end of the outside of the level body (8) is detachably connected with an eyepiece assembly (7) through a bolt, the inside of the level body (8) is provided with a rack (13), the inside of the level body (8) is provided with a gear (14) outside the rack (13), the outside of the level body (8) is provided with a micrometer hand wheel (15), the inside of the level body (8) is provided with a rack rod (16), the inside of the level body (8) is fixedly connected with a limiting block (17), and the outside of the level body (8) is provided with a swing frame (18).
2. The high-definition level with built-in micrometer of claim 1, wherein: The inside of the level body (8) is provided with a large objective lens assembly (3), a focusing mirror (4) and a rear fixed group (5), and the inside of the level body (8) is provided with a compensator (6) between the rear fixed group (5) and the eyepiece assembly (7).
3. The high-definition level with built-in micrometer of claim 1, wherein: The inside of the level body (8) is provided with a micrometer reading eyepiece (10) on one side close to the eyepiece assembly (7), the inside of the level body (8) is provided with a flat plate micrometer (12) outside the micrometer reading eyepiece (10), and the inside of the level body (8) is provided with a micrometer reading prism (11) outside the flat plate micrometer (12).
4. The high-definition level with built-in micrometer of claim 1, wherein: The inside of the level body (8) is clamped and connected with an optical flat crystal glass (2), both ends of the outside of the optical flat crystal glass (2) extend to the outside of the level body (8) through the level body (8) and are rotatably connected with the level body (8) through bearings, and one end of the swing frame (18) and the optical flat crystal glass (2) extending to the outside of the level body (8) is fixedly connected.
5. The high-definition level with built-in micrometer of claim 3, wherein: The micrometer reading prism (11) is arranged at the lower end of the flat plate micrometer (12), the rack (13) and the gear (14) are engagedly connected, the micrometer hand wheel (15) and the level body (8) are rotatably connected through bearings, one end of the micrometer hand wheel (15) and the gear (14) is fixedly connected, one end of the rack (13) and the rack rod (16) is engagedly connected, and the other end of the rack rod (16) is fixedly connected with the outside of the swing frame (18).