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13 results about "Level staff" patented technology

A level staff, also called levelling rod, is a graduated wooden or aluminium rod, used with a levelling instrument to determine the difference in height between points or heights of points above a vertical datum. It cannot be used without a leveling instrument.

Stable leveling rod support convenient to adjust

The invention relates to the technical field of leveling observation, in particular to a stable and convenient-to-adjust leveling rod support which comprises a mounting unit, and the mounting unit comprises a mounting plate, mounting grooves formed in the two ends of the mounting plate and supporting assemblies arranged in the mounting grooves; and the clamping unit comprises an arc-shaped ring groove formed in the middle of the mounting plate and a clamping assembly rotationally arranged in the arc-shaped ring groove. According to the stable leveling rod support convenient to adjust, the clamping assembly rotates by 360 degrees in the mounting plate due to gravity, it is ensured that the clamping assembly cannot incline due to inclination of the mounting plate, after the mounting plate is erected, the clamping assembly is fixed through the fixing assembly, it is ensured that a leveling rod is kept in a vertical state after being mounted and is not affected by the mounting plate, and the leveling rod support is stable and convenient to adjust. Inclination of the mounting plate has no influence on the clamping assembly, and height adjustment of the mounting plate is further facilitated.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV +1

Leveling rod monitoring adaptation device

The leveling rod monitoring adaptation device comprises a connecting piece and an adaptation piece. The connecting piece is mounted at the bottom of the leveling rod. The adapter is detachably connected to the lower portion of the connecting piece, and the shape of the adapter is set to be capable of being inserted into the settlement monitoring hole to reach the position making contact with the settlement monitoring point. The leveling rod monitoring adaptive device is used for assisting settlement monitoring of the leveling rod, the application range of settlement monitoring of the leveling rod is widened, the cost is low, and the structure is simple.
Owner:SHANGHAI PUGONG TESTING TECH CO LTD

A ground leveling rod fixing tool

The utility model discloses a leveling rod fixed ground contact stand, belongs to surveying and mapping equipment technical field. Including the positioning vertical pole, the sliding mounting plate of being sleeved in the positioning vertical pole outer wall and can slide up and down, the leveling rod fixed frame of being located in the sliding mounting plate side wall, the leveling rod body of being installed on the leveling rod fixed frame, sliding mounting plate is as the basic support structure, and the sliding mounting plate on the sliding mounting plate slides up and down along the positioning vertical pole, can be used for adjusting the height of leveling rod, simultaneously, the relative rotation between the sliding inner plate and the sliding outer plate of sliding mounting plate can be used for adjusting the angle of leveling rod, in the process of adjusting, can be through the angle mark scale that the tip of observation indication arrow points to, accurate control rotation angle, ensure that the leveling rod body can accurately aim at the measurement direction, improve the accuracy of measurement, especially in some angle has specific requirement's measurement operation, and this structure is especially practical.
Owner:SEISMOLOGICAL BUREAU OF SHAANXI PROVINCE

An adjustment structure for a leveling rod

ActiveCN224434074ULevel staffBall joint
This utility model provides an adjustment structure for a leveling rod, belonging to the technical field of architectural surveying devices. It solves the problem of improving the applicability of leveling rods. In this adjustment structure, the leveling rod is vertically positioned and includes horizontally positioned upper and lower base plates, spaced vertically apart. The upper end of the leveling rod is hinged to the upper base plate and axially positioned thereon. The lower base plate has a through-hole that extends through both sides of the lower base plate, with a ball joint inside. The lower end of the leveling rod is hinged to the ball joint. Two mutually perpendicular screws are connected horizontally to the side wall of the lower base plate. Each screw can slide along the length of the corresponding side wall of the lower base plate and is positioned thereon. The inner end of each screw is hinged to the ball joint. Each screw can extend into the through-hole and push the ball joint, causing the leveling rod to swing around the hinge point with the upper base plate. This adjustment structure improves the applicability of the leveling rod.
Owner:TAIZHOU VOCATIONAL & TECHN COLLEGE

Light reflecting device matched with precise leveling staff

ActiveCN223940281UIncline measurementVertical planeLevel staff
The utility model discloses a light reflecting device matched with a precise leveling staff, which comprises a mounting seat, the top end of the mounting seat is fixedly connected with a fixed cylinder, the top end of the fixed cylinder is movably connected with a mounting clamp, the center line of the fixed cylinder and the center line of the mounting seat are on the same vertical plane, and one side of the top end of the mounting seat is provided with a light reflecting mirror. According to the light reflecting device matched with the precise leveling staff, through the arrangement of the mounting pad, when the device is mounted, the mounting base is connected to the leveling staff in a sleeving mode, the mounting bolt is rotated to rotate in the threaded cylinder, meanwhile, the connecting piece is pushed to move, and the connecting piece pushes the positioning plate to move through the connecting sleeve and is matched with the mounting base to position the device; and an anti-skid pad on one side of the positioning plate and a mounting pad in the mounting base can improve the anti-skid effect, the device and the scale can be effectively prevented from being abraded after mounting, and the problem that the leveling scale cannot be strictly erected under specific conditions is solved.
Owner:自然资源部第一大地测量队(自然资源部精密工程测量院陕西省第一测绘工程院)

A leveling measurement display system and measurement method based on GNSS positioning

PendingCN122408700ALevel staffRemote sensing
This invention discloses a GNSS-based leveling measurement display system and method, comprising a level instrument body, a foresight leveling rod, and a backsight leveling rod. The level instrument body is equipped with an instrument-end positioning unit, the foresight leveling rod is equipped with a front-end positioning device, and the backsight leveling rod is equipped with a rear-end positioning device. The instrument-end positioning unit establishes a wireless communication connection with both the front-end and rear-end positioning devices. The instrument-end positioning unit includes an instrument-end microprocessor, an instrument-end positioning module, and an instrument-end wireless communication module, which are electrically connected to the instrument-end microprocessor. This GNSS-based leveling measurement display system eliminates the need for manual rope pulling and measuring tape measurements, reducing the number of personnel and auxiliary procedures, and significantly improving the efficiency of field leveling measurements.
Owner:HENAN WATER-CONSERVANCY EXPLORATING & SURVEYING CO LTD

An intelligent leveling system based on three GNSS coordinate cooperation and a measuring method thereof

PendingCN122108056AHeight/levelling measurementLevel staffElectronic notebook
The application provides an intelligent leveling system based on three GNSS coordinate cooperation and a measuring method thereof. The system comprises an intelligent level gauge, a first intelligent leveling rod and a second intelligent leveling rod. All of them are provided with independent GNSS modules and can obtain three-dimensional coordinates in real time. The level gauge can obtain the front and rear sight distances through coordinate inversion and calculate the sight distance difference, and then send the sight distance difference to the display screens of the two rods to guide the first rod to be in place. The leveling rod is provided with an inclination sensor, which can automatically switch among the three states of movement guidance, rod monitoring and righting recording according to the inclination angle, and automatically record the three-dimensional coordinates to form an electronic notebook at the righting moment. The leveling rod can be switched to an RTK mobile station through one key, which is used for layout and recovery of buried leveling points and accurate recovery of temporary leveling points the next day. When the leveling rod is righted for the first time after station migration, the coordinates are automatically compared to realize the detection and tracing of the centimeter-level error. The system can synchronously collect the geodetic height and normal height of each rod point, automatically calculate the height anomaly value and cumulatively form a local height anomaly model.
Owner:江秀

A leveling staff erecting device

The application relates to a leveling rod erecting device, which relates to the technical field of engineering construction measurement and comprises a support frame and a fixing assembly; the support frame comprises a mounting platform and a plurality of support legs which are detachably connected below the mounting platform; the fixing assembly comprises an elastic fixing piece and a spherical cavity arranged on the mounting platform; the elastic fixing piece is accommodated in the spherical cavity and is matched with the spherical surface of the spherical cavity; and the elastic fixing piece is used for clamping and fixing a leveling rod. The leveling rod is automatically swung to a plumb state under the action of gravity through the spherical surface matching of the elastic fixing piece and the spherical cavity, manual repeated calibration is not needed, the measurement efficiency and accuracy are improved, the elastic fixing piece can self-adaptively clamp leveling rods of different specifications, the clamping is stable and the rod surface is not damaged, and the device has the advantages of simple structure, convenient operation and single-person erecting and storage.
Owner:CHINA RAILWAY NO 3 GRP CO LTD +2

Leveling rod support

ActiveCN224215094UFlexible moving processavoid falling intoStands/trestlesLevel staffStructural engineering
The utility model relates to the related technical field of leveling rod supports, and one embodiment of the utility model provides a leveling rod support which comprises a main frame and a leveling rod body, the leveling rod body is arranged in the main frame, a supporting and stabilizing assembly is arranged at the bottom of the main frame and the bottom of the leveling rod body, and a sleeving assembly is arranged on the main frame. The supporting and stabilizing assembly comprises a plurality of supporting legs which are arranged at the bottom of the main frame, moving wheels are arranged at the lower ends of the supporting legs, a pair of connecting rods are vertically and movably connected into the main frame in a sleeved mode, a bracket is arranged at the lower ends of the connecting rods, and the lower end of the leveling rod body is inserted into the bracket. By means of the technical scheme, the problems that in the prior art, the contact area between a supporting leg and the ground is small, and a self-adaptive adjusting function is lacked are solved. In the prior art, the support is easy to sink into the ground or incline under the soft ground or the uneven measurement environment, and even if the initial calibration and measurement process is slightly disturbed by external force, the measurement data are not accurate due to shaking.
Owner:HEBEI GEOGRAPHIC INFORMATION GRP CO LTD +1

A leveling device

ActiveCN224416079UControl engineeringMovable type
The utility model relates to a leveling rod device, including level rod board, level rod board can dismantle formula setting on connecting piece, adjusting leg movable type installation is in connecting piece, adjusting leg makes level rod board keep vertical state, flag movable type installation is in connecting piece, to prompt operating personnel, adjusting leg movable type installation is in connecting piece, can according to actual survey ground flatness and inclination, the angle of level rod board carries out real -time, accurate regulation, can according to the operation scene and measurement demand, flexible adjustment position and angle. In the complex survey environment, especially when light is insufficient, the field of vision is limited or the survey personnel distance is far, the flag can attract the attention of operating personnel in an eye -catching way, clearly prompt the accurate position of the leveling rod, avoid the survey deviation or misoperation due to the sight problem, effectively improve the efficiency and safety of the survey operation, also facilitate mutual cooperation between team members, guarantee the smooth progress of the survey work.
Owner:ZHEJIANG HYDROPOWER CONSTR & INSTALLATIONCO

An engineering surveying auxiliary surveying device

The utility model relates to a kind of surveying and mapping engineering auxiliary surveying and mapping device, including first level ruler, second level ruler is rotatably connected on the first level ruler by folding mechanism, level mechanism is provided on the first level ruler, the folding mechanism includes box, the box is rotatably connected on first level ruler, the inner wall of first level ruler is penetrated by the one end of the box, second level ruler is fixedly installed in the one end of box, the inner wall of the box is slidably provided with limit block, limit block is fixedly installed with connecting rod in one end, the one end of connecting rod is penetrated through box and fixedly installed with pull plate, pull plate is fixedly installed with plug rod on one side, by being provided with level mechanism, it serves to increase the purpose of level ruler horizontal correction function, it is favorable to improve the accuracy of surveying and mapping, by being provided with folding mechanism, it serves to the purpose of second level ruler is conveniently received into first level ruler, it is convenient for the carrying of level ruler.
Owner:SHANDONG TONGCE LAND REAL ESTATE ASSETS ASSESSMENT & SURVEYING CO LTD