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25 results about "Plumb bob" patented technology

A plumb bob, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical reference line, or plumb-line. It is a precursor to the spirit level and used to establish a vertical or horizontal datum.

A centering measurement method for shipbuilding

The present invention provides a centering measurement method for shipbuilding, which relates to the field of centering measurement. The centering measurement method comprises the following steps: step 1, tying a chalk line above a reference plane, hanging a simulation block at the lower end of the chalk line, allowing the chalk line to naturally hang and remain stationary; step 2, removing the simulation block and hanging a plumb bob; step 3, placing a light source structure on the reference plane, the light source structure being located on one side of the plumb bob, and a segmented measurement surface being located outside the reference plane and corresponding to the other side of the plumb bob; step 4, turning on the light source structure to emit irradiation light toward the other side of the plumb bob, the irradiation light being parallel light, and the irradiation direction of the irradiation light forming an inclined angle with the plane where the reference plane is located; step 5, under the irradiation of the light source, a chalk line projection line is formed on the segmented measurement surface, adjusting the positions of the chalk line and the plumb bob so that the chalk line projection line coincides with the center line of the segmented structure, and observing the deviation value between the plumb bob tip projection and the center line of the reference plane to determine the centering accuracy of the segmented structure.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD

Construction and installation method for prefabricated column

The invention provides a construction and installation method for a prefabricated column. The construction and installation method sequentially comprises the following steps that S1, construction preparation is conducted; s2, hoisting the prefabricated column; s3, prefabricated column installation and perpendicularity correction are carried out; and S4, grouting the prefabricated column. According to the invention, the whole-process standardized operation is realized; technical standards of all links are defined, man-made randomness can be reduced, and construction controllability and repeatability are improved. A metal cushion block and a jack are adopted for fine adjustment, and the perpendicularity deviation is monitored in real time in combination with a theodolite; and steel bar trial pairs are reserved, so that the dislocation risk is avoided in advance. A hoisting safety layering confirmation mechanism is adopted; safety confirmation is performed for three times, and a small mirror is combined to assist in alignment inspection, so that the hoisting accident rate is reduced. Multiple tools are adopted to cooperate with perpendicularity correction, a crowbar, a plumb bob, a guiding rule and a theodolite are combined for use, and an inclined support expansion bolt is matched for fixation, so that the correction time is shortened, and the single-column installation efficiency is improved.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

Fracturing downhole parameter monitoring device

The utility model discloses a fracturing downhole parameter monitoring device which comprises a three-component geophone and a placing circular plate which are detachably connected in sequence from top to bottom. The supporting base is of an L-shaped structure, the side wall of the supporting base is connected with the well wall of the fractured well through bolts, and the middle of the bottom wall of the supporting base is connected with the containing circular plate through an automatic correction assembly; the automatic correction assembly comprises a ball sleeve, the upper end and the lower end of the ball sleeve are each of an open structure, and the side wall of the ball sleeve is fixedly connected with the bottom wall of the supporting base through a connecting rod; the ball is rotatably arranged in the ball sleeve, the upper end of the ball is connected with the placing circular plate, the lower end of the ball is detachably connected with a plumb bob, and the center of the placing circular plate, the center of the ball and the axis of the plumb bob are collinear; by means of the characteristic that the placing circular plate, the ball and the plumb bob are coaxially arranged, automatic horizontal correction is carried out on the placing circular plate supporting the three-component geophone; therefore, the three-component geophone calibration device can play a role in quickly calibrating the three-component geophone.
Owner:YANGZHOU UNIV

Single-person verticality detector

ActiveCN223258928UIncline measurementControl theoryPlumb bob
The utility model provides a single-person verticality detector, comprising a telescopic vertical rod, the top end and the bottom end of which are respectively and vertically provided with a cross rod and a base; the top end of the plumb bob is connected to the cross rod; the scale plate is installed on the telescopic vertical rod, the middle of the scale plate is provided with a through hole for a plumb bob to penetrate through, and scales are arranged on the scale plate and the cross rod; the scale plate, the cross rod and the front end of the base are located on the same vertical face and used for abutting against an outer side formwork of the concrete column. The utility model has the advantages that the verticality of the column can be detected by a single person without climbing, the risk of high-place operation is reduced, the detection and acceptance efficiency is greatly improved, the time is saved, the accuracy of the verticality of the column is ensured, and the working efficiency is improved.
Owner:CHINA CHEM ENG SECOND CONSTR

Wind-resistant plumb bob device

The invention relates to a wind-resistant plumb bob device which comprises a plumb bob body, a wind-resistant device and a wind-resistant device. The first suspension rope can be connected to the top end of the plumb bob body; and the damping adjusting assembly is arranged in the hollow part of the plumb bob body. According to the wind-resistant plumb bob device, the damping adjusting assembly is arranged in the plumb bob body, damping force can be flexibly adjusted according to the wind power, the plumb bob body can be kept in a good vertical state in a strong wind environment, the measuring precision is greatly improved, and the working efficiency is improved.
Owner:CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD

Shield segment gradient measuring device and method based on gravity laser benchmark

The invention discloses a shield segment gradient measuring device and method based on gravity laser reference. The measuring device comprises a base, a dial, a supporting frame, a lifting rope, a drop hammer, a laser transmitter, a reading sensor and a processor. The laser transmitter is arranged on the central axis of the drop hammer, the laser transmitter forms the light spot on the dial, the reading sensor reads the coordinate value of the light spot, and the processor can automatically calculate the gradient of the dial according to the coordinate value. And when the central axis of the shield segment is parallel to the x axis of the dial, the gradient of the dial is the gradient of the shield segment, so that automatic measurement of the gradient of the shield segment is realized. In a better scheme, even in the swinging process of the drop hammer, the gradient of the shield segment can be calculated through the maximum coordinate value and the minimum coordinate value in the same swinging period, so that the measurement efficiency is improved.
Owner:SHANGHAI FOUNDATION ENGINEERING GROUP CO LTD

Engineering plumb bob

ActiveCN310110409SPlumb bobIndustrial engineering
1. The name of the design product: engineering plumb bob. 2. The use of the design product: vertical positioning during construction. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:谢静

Building engineering perpendicularity detection device convenient to move

The invention discloses a constructional engineering verticality detection device convenient to move, and relates to the technical field of constructional verticality detection devices, and the constructional engineering verticality detection device comprises two accommodating cavities arranged at two ends of a base. According to the constructional engineering perpendicularity detection device convenient to move, when the whole device needs to be rapidly moved, the transmission mechanism drives the telescopic column to descend, the leg frame is stored into the containing cavity of the base, the lifting mechanism clamps and lifts a plumb bob, and contraction of the telescopic column, storage of the leg frame and lifting of the plumb bob are carried out at the same time; the size of the whole device can be rapidly reduced, space obstacles caused in the moving process are avoided, it is ensured that moving operation is not hindered by the leg frame, the leg frame can conduct multi-point supporting, supporting points can be automatically adjusted according to the concave-convex ground, the conditions that the ground is uneven and a base is placed unstably are avoided, the plumb bob is lifted, and therefore the plumb bob can be conveniently and rapidly moved. The base can be moved conveniently, quickly and confidently, and the working efficiency is improved.
Owner:邹平市发展改革服务中心

Rail and heaped cone matching data detection method based on power fixed pulley wire falling device

This invention discloses a method for detecting the matching data of a guide rail and a pile cone based on a dynamic fixed pulley plumb bob device, comprising the following steps: S1, installing the dynamic fixed pulley plumb bob device; S2, measuring the matching data of the plumb bob's pointing point and intersection point 5.1; S21, attaching the two adjacent surfaces on both sides of the guide rail angle steel in step S1; S22, using the handheld remote control from step S1 to control the motor to drive the plumb bob downwards via the speed and direction control component; S23, after the plumb bob is stable, checking the matching data of the plumb bob's pointing point and intersection point 5.1; S24, after the measurement data is completed, repairing the guide rail that exceeds the design tolerance range or correcting the pile cone position line based on the measurement data. This invention, by using a dynamic fixed pulley plumb bob device to detect the matching data of the guide rail and pile cone, can identify out-of-tolerance parts of the matching data and repair them in a timely manner, thus advancing the process and improving measurement accuracy.
Owner:DALIAN SHIPBUILDING INDUSTRY CO LTD

Construction device for correcting perpendicularity of independent column

The utility model relates to the technical field of correction construction devices, and discloses an independent column perpendicularity correction construction device which comprises a top frame, a correction rope is arranged in the top frame, a plurality of side frames are arranged on the bottom face of the top frame, a PLC is fixedly installed on one side in the top frame, and the independent column perpendicularity correction construction device further comprises a correction assembly, the correction assembly is arranged on one side of the side frame and used for correcting the perpendicularity of the independent column, and the effect of correcting the perpendicularity of the independent column template can be achieved through matched use of the top frame, the correction rope, the side frame, the limiting groove, the movable frame, the plumb bob and the movable plate. The state of the formwork is judged by observing whether the movable frame is parallel to the calibration rope or not, when concrete is poured and the formwork deflects, real-time reference can be conducted, deflection of the independent column is avoided, the pouring effect of the independent column is guaranteed, a user does not need to use a guiding rule to conduct successive wall leaning measurement, use is convenient, and practicability is achieved.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD

Portable device and method for measuring effective aperture of forward and backward hammers of gravity dam

The invention belongs to the technical field of engineering structure safety monitoring, and particularly relates to a portable gravity dam forward and backward hammer effective aperture measuring device and method. The measuring device comprises a supporting mechanism and a measuring mechanism. The measuring mechanism is installed on the supporting mechanism. According to the invention, high-precision safe monitoring drilling is realized through six steps of mounting the supporting mechanism at the orifice to be measured, centering and leveling the supporting mechanism, mounting the measuring mechanism, reading the initial value, reading the measured value and calculating the effective aperture. The device is simple in structure and convenient to operate, and solves the problem that in the prior art, verticality and effective plumb bob diameter measurement needs to be carried out by high-end precision equipment, and detection is relatively inconvenient. According to the invention, the verticality and the effective plumb diameter measurement efficiency are improved, and the investment of high-end precision equipment is saved. The drilling precision can be dynamically adjusted and measured.
Owner:CCCC SECOND PUBLIC BUREAU FIFTH ENG CO LTD

plummet

ActiveCN309690624SPlumb bobIndustrial engineering
1. The name of the design product: plumb bob. 2. The use of the design product: vertical positioning during construction. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:刘目华

Rapid pile foundation positioning method based on laser

The invention relates to the technical field of building construction, in particular to a laser-based pile foundation rapid positioning method which comprises the following steps: S1, delimiting a pile foundation construction area; s2, setting coordinates of the two laser emitters are determined on the outer side of the construction area, and the two setting coordinates and the design coordinates of the pile foundation are required to be not in the same plumb plane; s3, two laser emitters are installed on the two set coordinates respectively; s4, determining a reference zero-degree direction; according to the two set coordinates and the design coordinates of the pile foundation, the included angles between the plumb bob laser planes emitted by the two laser emitters and the reference zero-degree direction are calculated correspondingly; and S5, the two laser emitters are started to emit two plumb bob laser surfaces correspondingly, the included angle between the plumb bob laser emitting surfaces and the reference zero-degree direction is adjusted, the intersecting line of the two plumb bob laser surfaces is obtained, and the intersecting line is the designed pile foundation position. Compared with the existing various positioning methods, the method for positioning by using the laser transmitter has the technical effects of accurate positioning and high efficiency.
Owner:CHINA RAILWAY NO 2 ENG GROUP CO LTD +1

Special well type horizontal well reservoir plumb bob thickness correction method

The invention discloses a special well type horizontal well reservoir plumb bob thickness correction method, and relates to the technical field of earthquakes and well logging. According to the method, a fault well section and a common well section are divided for a target well along a well track, a plurality of small reservoir layers are divided based on the porosity lower limit for the common well section, and the plumb bob thickness of each small reservoir layer is calculated layer by layer; the repeatedly calculated small layers of the reservoir are removed, and correction of the thickness of the reservoir plumb bob of the common well section is achieved; for a fault well section, making an auxiliary line in a seismic depth profile map, comparing a connecting line of a starting point and an ending point with an extension line of a stratum interface or a top layer interface of a reservoir where the starting point is located at an intersection point, reading the distance from the starting point to the intersection point by utilizing geosteering software, and calculating the plumb bob thickness of the reservoir of the fault well section, and summarizing the plumb bob thicknesses of the common well section and the fault well section to obtain the plumb bob thickness of the target well reservoir. According to the method, the fault well section and the common well section are considered, so that the calculation of the plumb bob thickness of the special well type horizontal well reservoir is more accurate.
Owner:PETROCHINA CO LTD

Simple slope gradient detection device

ActiveCN224480172USlope anglePlumb bob
This invention provides a simple slope gradient detection device. The device includes a slope panel and a measuring component fixed to the slope panel. The measuring component includes a horizontal plate, a vertical plate, and a plumb bob mounted on the vertical plate. The horizontal and vertical plates are perpendicular to each other and connected on both sides by side plates. The bottom edges of the horizontal, vertical, and side plates are all fixedly connected to the slope panel. The angle between the horizontal plate and the slope panel is equal to the slope angle α of the slope to be detected. A suspension component is provided near the horizontal plate on the vertical plate, and a vertical groove is provided directly below the suspension component, perpendicular to the horizontal plate. The plumb bob is suspended from the suspension component by a plumb line. This invention has a simple structure, reasonable design, and is convenient and quick to use. It is applicable to all slope engineering projects, easy to carry, and accurate. This invention is also easy to manufacture and can be quickly prepared using materials available on the construction site.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC

A multi-directional adjustable plumb bob

ActiveCN224455809UGear wheelPlumb bob
This utility model relates to the field of construction engineering technology, specifically to a multi-directional adjustable plumb bob, solving the technical problems of difficult base fixing, cumbersome use, and inconvenient operation of traditional plumb bobs. The utility model uses a magnetic base at the bottom. The X-axis direction of the plumb bob is adjusted by sliding a threaded sleeve on the X-axis screw. Rotating the first handle causes a gear to rotate on a meshing rack, adjusting the Y-axis direction of the plumb bob. Rotating the second handle releases or collects the plumb line, adjusting the Z-axis direction of the plumb bob. This achieves quick, convenient, and accurate multi-directional adjustment of the plumb bob, making it easy to install, widely applicable, and effectively enabling precise fine-tuning of the plumb bob in multiple directions, thereby improving the overall efficiency of construction engineering.
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD

Perpendicularity measuring device

The utility model belongs to the technical field of verticality measurement, and discloses a verticality measuring device, which comprises a detection piece, a length edge connected with the detection edge and perpendicular to the detection edge, and a measuring piece, the side edge of the detection piece is provided with a detection edge used for being attached to a wall surface to be measured; the measuring rope is provided with scales; the plumb bob is used for straightening the measuring rope to be perpendicular to the horizontal plane; and the length of the telescopic rod is adjustable. According to the utility model, the telescopic rod is held by a hand to place the detection piece at a high position and the detection edge is attached to the wall surface to be detected, when the plumb is straightened by the measuring rope to be vertical to the horizontal plane, the horizontal distance from the plumb to the wall surface to be detected can be measured, and the length of the length edge of the right-angle triangular rule is known. The horizontal deviation of the test point and the wall body in the vertical range can be obtained; the vertical height from the test point to the vertical vertex can be measured by using the measuring rope, so that the horizontal deviation and the vertical height within the range of the test point and the vertical vertex can be known, and the perpendicularity can be obtained through trigonometric function calculation.
Owner:SHANGHAI MUNICIPAL HIGHWAY ENG TESTING CO LTD

Bidirectional measuring rope

ActiveCN223387310USurveyPlumb bobMechanical engineering
The utility model relates to the technical field of depth measurement, and particularly discloses a bidirectional measuring rope which comprises a measuring rope body and lead weights, the lead weights are installed at the two ends of the measuring rope body respectively, identification pipes are fixed to the measuring rope body at intervals in the length direction of the measuring rope body, first scales and second scales are engraved on the identification pipes respectively, and the first scales and the second scales are arranged in a mirror symmetry mode. The first scale and the second scale respectively correspond to the length positions of the identification tubes on the measuring rope, the length positions respectively take the two end points of the measuring rope as zero points, and the sum of the first scale and the second scale is the total length of the measuring rope. According to the scheme, the problems that in traditional blast hole acceptance work, the time consumed by the manual rope winding procedure of acceptance personnel is long, the measuring error caused by bending of the measuring rope is large, and the service life is short can be solved.
Owner:唐放凤

plumb bob horizontal position controller

A kind of plumb bob type horizontal position controller, it is the mechanical device of mobile object keeps horizontal position control, install on mobile object. Instant monitoring and correct the inclination of mobile object;The controller is composed of plumb bob control mechanism and inclination angle adjusting mechanism, plumb bob control mechanism utilizes the natural droop principle of plumb bob's gravity, when mobile object inclines (such as meet slope etc.), plumb bob swing drive controller two orthogonal axis corresponding rotation and automatically trigger correction inclination switch, control the lifting of four orientation fulcrum of mobile object, keep mobile object (horizontal) balance.Inclination angle adjusting mechanism utilizes the screw structure to adjust the up and down movement of slider, change the distance of electric contact piece and swing contact block, both increase or reduce the swing angle of electric contact piece and swing contact block contact, to realize the adjustment of mobile object inclination trigger angle.
Owner:GUANGZHOU HUALI SCI & TECH VOCATIONAL COLLEGE

A tripod for mining engineering surveying

ActiveCN224433935UPlumb bobPosition fixing
This utility model discloses a tripod for mining engineering surveying, including a fixed platform, fixed legs, movable legs, and an equipment fixing screw. The tripod also includes: a suspension positioning device mounted on the equipment fixing screw to center the fixed platform when placing the tripod; a counterweight device mounted on the movable legs to increase the weight of the fixed and movable legs, reducing the impact of vibration on the tripod's accuracy during use; an auxiliary support device mounted on the movable legs to assist in supporting the fixed legs when the counterweight device is installed; and a triangular fixing device located below the movable legs. The suspension positioning device of this utility model uses a plumb bob with a plumb line to quickly determine the center position of the fixed platform when placing the tripod. Surveyors adjust the tripod according to ground markings until the plumb bob is stationary directly above the measurement point, achieving rapid and accurate positioning, reducing the time and effort spent searching for a suitable location, and improving measurement efficiency.
Owner:DONGSHENGMIAO MINING LLC

Irregular boundary slope surface reinforcement arrangement method and related equipment

The invention relates to the technical field of slope engineering reinforcement arrangement design, in particular to an irregular boundary slope surface reinforcement arrangement method and related equipment.The method comprises the steps that a three-dimensional geologic model containing an original terrain surface and a designed slope surface is constructed, and an excavation slope surface with an irregular boundary is generated through topological intersection; dividing the surface into a plurality of reinforcing subareas according to geological conditions on the contour surface of the excavated slope; a typical slope is selected for each reinforcing subarea for plumb projection, and an ideal two-dimensional reinforcing arrangement area (logic grid face) of each subarea is obtained; and the reinforcing arrangement scheme and arrangement parameters of the logic grid surface are mapped to all slope surface units in the corresponding reinforcing subareas, reinforcing arrangement of all slope surface units is completed, and the problems that multi-firmware arrangement positions conflict and a traditional design method is low in efficiency are solved.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED +1

plumb bob (construction engineering)

ActiveCN309510484SConstruction engineeringPlumb bob
1. The name of this design product: plumb bob (construction engineering). 2. Purpose of this design product: This design product is used for verticality calibration of construction projects. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.
Owner:张金利

Column base positioning jig, and column base positioning method using the column base positioning jig

To provide a column base positioning jig capable of positioning a column base at an appropriate position with respect to foundation of a building without a plumb bob, and a column base positioning method using the jig.SOLUTION: A column base positioning jig is used to position a column base B with respect to a column base foundation F1 when the column base B is fixed to the column base foundation F1. The column base positioning jig 10 has: a first reflection plate 12 which is provided at a position adjacent to a mark-off line B3 drawn on the upper face of a base plate B2 of the column base B in an extension direction at which the mark-off line B3 extends; a second reflection plate 13 which is provided above a ground mark F3 drawn on a foundation B, and reflects the ground mark F3 on the first reflection plate 12 so as to make the ground mark F3 observable from above the first reflection plate 12; a frame body 11 supporting the first reflection plate 12 and the second reflection plate 13; and an opening 11d which makes the mark-off line B3 observable from above, inside the frame body 11.SELECTED DRAWING: Figure 7
Owner:DAIWA HOUSE INDUSTRY CO LTD

Round inspection well masonry control device

The utility model provides a building control device for a circular inspection well. The building control device comprises round steel, L-shaped square steel, a plumb bob, a hanging assembly and a circular level bubble. The inner diameter of the round steel is consistent with the designed inner diameter of the target inspection well, and the axis is perpendicular to the horizontal plane; the plumb bob ensures the accuracy of the device in the vertical direction, and the suspension assembly provides a calibration reference in the vertical direction. The L-shaped square steel is fixed to the bricks through the clamping devices, and the levelness and perpendicularity in the building process are guaranteed. The circular level bubble is used for detecting the horizontal state of the device in real time and is convenient to adjust. By means of the device, constructors can accurately control the building position and levelness of each layer of bricks, errors are effectively reduced, the stability and safety of the whole structure are improved, tedious adjusting steps in the traditional building process are simplified, the construction efficiency is improved, the requirement for the skill level of the constructors is lowered, and the stability of the construction quality is guaranteed.
Owner:ROAD & BRIDGE INT CO LTD +1

A method of building a container ship in steps and a step

The present application relates to a kind of container ship ladder segment construction method and ladder segment, comprising: step 1, the ladder segment is divided into several deck pieces;Step 2, deck piece is carried out layer by layer, and the center edge of deck is the reference to draw the first reference line on the ground;With the bow-tail direction of the deck of deck piece as the reference to draw the second reference line;Theoretical difference distance between the center edge of deck is parallel to the first reference line to draw theoretical reference line;Support column is set along theoretical reference line;Deck piece is positioned according to theoretical reference line and the second reference line layer by layer;Step 3, after all the deck piece is positioned after closing, the precision of ladder segment is verified.The present application only measures the precision of deck piece after being made and after being closed by total station after the construction method of ladder segment, and the positioning process can be realized without the help of total station, and the positioning of deck piece can be realized more quickly by plumb bob, so that the construction efficiency is improved.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP +1