CN112923915B - Checking device and checking method for pier column template deviation and verticality control - Google Patents

Checking device and checking method for pier column template deviation and verticality control Download PDF

Info

Publication number
CN112923915B
CN112923915B CN202110062243.8A CN202110062243A CN112923915B CN 112923915 B CN112923915 B CN 112923915B CN 202110062243 A CN202110062243 A CN 202110062243A CN 112923915 B CN112923915 B CN 112923915B
Authority
CN
China
Prior art keywords
laser
target
pier stud
laser target
plummet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110062243.8A
Other languages
Chinese (zh)
Other versions
CN112923915A (en
Inventor
何剑甲
张彦云
郎泽俊
周玖利
宋克坤
尧建敏
马才良
邓文
刘海伟
杨猛
李欢
熊峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCCC Second Harbor Engineering Co
Original Assignee
CCCC Second Harbor Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CCCC Second Harbor Engineering Co filed Critical CCCC Second Harbor Engineering Co
Priority to CN202110062243.8A priority Critical patent/CN112923915B/en
Publication of CN112923915A publication Critical patent/CN112923915A/en
Application granted granted Critical
Publication of CN112923915B publication Critical patent/CN112923915B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/12Instruments for setting out fixed angles, e.g. right angles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002Active optical surveying means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses a checking device for deviation and control verticality of an pier stud template and a checking method thereof, which are used for detecting and checking the verticality of an installation position of a pier stud, wherein the checking device for deviation and control verticality of the pier stud template comprises a laser target device, a laser plummet, a laser positioning device and a laser plummet, wherein the laser target device is arranged right above the installation position of the pier stud, the laser plummet is arranged right below the laser target device and is positioned at the installation position of the pier stud, and the laser plummet vertically irradiates a laser target by utilizing laser to determine the installation position of the pier stud where the laser plummet is positioned; the laser target device comprises a laser target, a laser target and a laser processing device, wherein the laser target is a plane with a target center, the target center is arranged in the middle of the plane, and target coordinates are formed by diffusion around the target center as an origin to the periphery in the circumferential direction; the laser target is further provided with a first horizontal measuring device used for measuring the levelness of the laser target. The method can be widely applied to the technical field of construction measurement.

Description

Checking device and checking method for pier column template deviation and verticality control
Technical Field
The invention relates to the technical field of construction measurement. More particularly, the invention relates to a checking device and a checking method for pier column template deviation and verticality control.
Background
The modern bridge engineering mostly involves high pier bodies and high towers, and the control of the plane position and the verticality of the pier is generally realized by measuring data on site every time, comparing the measured data with the previous data, performing mapping analysis, and judging the verticality and the deviation of the pier, but the data is not intuitive. Such data is often the difference between the data obtained by comparison analysis of design data by a measurer, and then the template adjustment is conducted on site. Whether the actual position and the verticality after adjustment meet the requirements or not cannot be known, and the position of the template needs to be measured, data comparison and the like by a measurer again. If the design standard and the specification requirement are not met, the process is required to be repeated. For such a process, the process is cumbersome, time consuming and laborious for the measuring personnel; for field constructors, the template adjustment is a blind purpose, and only can listen to field measurement data commands without directionality.
Disclosure of Invention
The invention aims to provide a checking device and a checking method for pier stud template deviation and verticality control.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a checking apparatus for deviation of pier stud formwork and controlling verticality for detecting and checking verticality of an installation position of pier stud, comprising,
the laser target device is arranged right above the pier column mounting position, and the laser plummet is arranged right below the laser target device and is positioned at the pier column mounting position, and the laser plummet vertically irradiates the laser target by utilizing laser to determine the mounting position of the laser plummet on the pier column; the laser target device comprises a laser target device,
the laser target is a plane with a target center, the target center is arranged in the middle of the plane, and the target center is used as an origin to diffuse to the periphery in the circumferential direction to form a target coordinate;
the laser target is further provided with a first horizontal measuring device used for measuring the levelness of the laser target.
Preferably, the level measuring device is a round level bubble.
Preferably, the laser target device further comprises a frame, wherein the frame is formed by two pairs of strip-shaped connecting blocks in a surrounding mode to form a square shape, and the laser target is fixed inside the frame.
Preferably, the laser target device further comprises a pair of connecting rods horizontally arranged on one side of the frame and used for being inserted into or pressed on a building to fix the laser target.
Preferably, the checking device for deviation and verticality control of the pier stud template further comprises a bottom support which is arranged at the bottom of the laser plummet and used for adjusting the levelness of the laser plummet, the bottom support comprises,
the bearing plate is horizontally arranged and used for supporting and placing the laser plummet;
the two pairs of adjusting rods are vertically supported at four corners of the bottom of the bearing plate respectively; all the adjusting rods are telescopic rods, one end of each telescopic rod is hinged to the bottom of the bearing plate through a spherical hinge, and the other end of each telescopic rod is supported on the ground.
Preferably, the bottom support further comprises a hanging plate horizontally hung at the bottom of the bearing plate through a pair of connecting rods and located in a space surrounded by the two pairs of adjusting rods, and a second horizontal measuring device is arranged on the hanging plate and used for measuring the levelness of the bottom support.
Preferably, pier stud template off normal, control straightness's that hangs down check device still includes the radar to and radar receiver, the radar sets up on the hanger plate, radar receiver sets up on the laser mark target device.
Preferably, the second leveling device comprises a plumb line including a plurality of guy wires equidistantly disposed along the bottom of the hanger plate, and a tapered lead block disposed at the plumb line away from the end of the hanger plate.
Preferably, the pier stud template deviation and verticality control checking device further comprises an adjusting frame, the adjusting frame is provided with a pair of sleeves, the sleeves are respectively in adaptive splicing with the pair of connecting rods so as to adjust the length of the extending connecting rods, the sleeves are connected through a bearing grid plate, and the laser target device is fixed without placing a balancing weight;
telescopic bottom and connecting rod are located and are close to the bottom of the festival section of laser mark target still is provided with a pair of supporting legs respectively at the interval, the supporting legs is telescoping device for support fixed support the laser mark target device.
A checking method of a checking device for pier column template deviation and verticality control comprises the following steps:
step S1, mounting the laser target device and the laser plummet, carrying out primary calibration, and observing approximate coordinates of a laser aperture of the laser plummet on the laser target;
and step S2, performing fine horizontal position adjustment on the laser target device and the laser plummet after primary calibration, firstly, adjusting a first horizontal measuring device on the laser target device to enable the laser target to be in a horizontal state, then, adjusting a second horizontal measuring device on the laser plummet to enable the second horizontal measuring device to be in a horizontal state, and then performing secondary calibration to obtain the coordinate of the aperture emitted by the laser plummet on the laser target.
The invention at least comprises the following beneficial effects:
1. in the process of measuring and controlling the perpendicularity of the pier stud and the deviation of the template, by using the checking method, a large amount of investment of measuring personnel and equipment is effectively reduced, the cost investment is saved, original measuring personnel repeatedly measure, calculate and calculate the perpendicularity and the deviation, and field technicians and constructors can check the deviation of the template at any time and effectively guide field adjustment, so that the control of the construction process is increased, and the adjustment can be carried out at any time.
2. The construction safety is improved, the climbing operation of measuring personnel is avoided, only a laser plummet switch is needed to be turned on, the distance and the direction of a laser point deviating from the center of the target are checked, the position of the template is guided to be adjusted on site, and the measurement safety is effectively improved.
3. The problem that observation conditions of measurement personnel at night are limited is effectively solved, the deviation condition of the template can be visually displayed, the site can be adjusted in place according to the actual deviation condition, and the method is simple, convenient and efficient.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a block diagram of a laser target apparatus of the present invention;
FIG. 2 is a diagram of the positional relationship of a laser target device of the present invention and a laser plummet;
FIG. 3 is a block diagram of the present invention with the adjustment bracket attached to the connecting rod;
FIG. 4 is a diagram of the position of the support legs on the connecting rod and the adjusting bracket according to the present invention;
FIG. 5 is a bottom bracket construction of the present invention;
FIG. 6 is an enlarged structural view of FIG. 5 in accordance with the present invention.
The specification reference numbers indicate: 1. laser mark target device, 2, laser plummet, 3, bottom support, 4, connecting rod, 5, alignment jig, 6, second circle level bubble, 7, radar, 8, frame, 9, first circle level bubble, 10, laser mark target, 11, target center, 301, limiting plate, 302, loading board, 303 regulation pole, 304, pawl, 305, plumb line, 306, spread groove, 307, fastening bolt, 501, sleeve, 502, bearing grid plate, 503, locating hole, 504, supporting legs.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-6, a checking device for deviation and verticality control of pier stud templates is used for detecting and checking the verticality of pier stud installation positions, and comprises,
the laser target device 1 is arranged right above the pier stud mounting position, and the laser plummet 2 is arranged right below the laser target device 1 and is positioned at the pier stud mounting position, and the laser plummet 2 vertically irradiates the laser target 10 by utilizing laser to determine the mounting position of the pier stud where the laser plummet 2 is positioned; the laser target device 1 is provided with a laser target device,
the laser target 10 is a plane with a target center 11, the target center 11 is arranged in the middle of the plane, and target coordinates are formed by diffusing around the target center 11 as an origin to the periphery in the circumferential direction;
the laser target 10 is further provided with a first leveling device for measuring a levelness of the laser target 10.
In above-mentioned technical scheme, laser mark target device 1 mutually supports with laser plummet 2, judges whether the mounted position of pier stud reaches the level through the coordinate position that laser plummet 2 laser apertures of laser plummet on the direction of height lies in laser mark target 10 to the installation error of while record pier stud provides visual reference for the secondary adjustment.
In another embodiment, the leveling device is a first circular leveling bubble 9.
In the above technical solution, the circular level bubble can be tested, whether the placement position of the laser target 10 is horizontal or not, and the placement position of the laser target 10 directly affects the eating accuracy after the laser aperture mapping, so that the horizontal state of the laser target 10 is determined before the laser target device 1 is matched with the laser plummet 2.
In another technical solution, the laser target device 1 further includes a frame 8, which is formed by two pairs of strip-shaped connecting blocks to form a square shape and fixes the laser target 10 therein.
In the above technical solution, the laser target 10 is disposed in the frame 8 by a plurality of adjustable screws.
In another technical solution, the laser target device 1 further includes a pair of connecting rods 4 horizontally disposed on one side of the frame 8, for being inserted into or pressed on a building to fix the laser target 10.
In the above technical solution, when measuring, the laser target 10 needs to be suspended, and is inserted into or pressed on a surrounding building by the connecting rod 4 to be temporarily fixed.
In another technical scheme, the checking device for pier stud template deviation and verticality control further comprises a bottom support 3 arranged at the bottom of the laser plummet 2 and used for adjusting the levelness of the laser plummet 2, wherein the bottom support 3 comprises,
the bearing plate 302 is horizontally arranged and used for supporting and placing the laser plummet 2;
two pairs of adjusting rods 303 vertically supported at four corners of the bottom of the bearing plate 302 respectively; all the adjusting rods 303 are telescopic rods, one end of each telescopic rod is hinged to the bottom of the bearing plate 302 through a spherical hinge, and the other end of each telescopic rod is supported on the ground.
In above-mentioned technical scheme, bottom support 3 is used for fixing and adjusts the position of laser plummet 2, when meetting unevenness or muddy installation environment, directly place the installation with laser plummet 2, first cause the tide loss to laser plummet 2, the level is difficult to place to the second, so, bear installation laser plummet 2 through horizontally loading board 302, utilize a pair of stop device on the loading board 302 to press from both sides laser plummet 2 and establish fixedly, then utilize the height that laser plummet 2 unbalance side under the regulation pole 303 that sets up the loading board 302 bottom adjusts unevenness environment, and simultaneously, the one end that the loading board 302 was kept away from to regulation pole 303 sets up pawl 304, can firmly be fixed in ground, and then adapt to the measurement demand under the adverse circumstances.
In another technical solution, the bottom support 3 further includes a hanging plate horizontally hung at the bottom of the bearing plate 302 through a pair of connecting rods 4, and located in a space surrounded by the two pairs of adjusting rods 303, and a second horizontal measuring device is disposed on the hanging plate for measuring the levelness of the bottom support 3.
In another aspect, the second leveling device includes a plumb line 305 that includes a plurality of wires equidistantly positioned along the bottom of the hanger plate, and a tapered lead block positioned at the end of the plumb line 305 away from the hanger plate.
In the above technical solution, the purpose of setting up the second leveling device on the hanger plate is to adjust the horizontal position of the laser water plummet, and the second circular level bubble 6 and the plumb line 305 are included, and the levelness thereof is further ensured through two ways.
In another technical scheme, the checking device for pier stud template deviation and control verticality further comprises a radar 7 and a radar 7 receiving device, wherein the radar 7 is arranged on the hanging plate, and the radar 7 receiving device is arranged on the laser target device 1.
In the above technical solution, the radar 7 device is used for measuring the distance from the laser level to the laser target device 1.
In another technical scheme, the checking device for pier stud template deviation and verticality control further comprises an adjusting frame 5, wherein the adjusting frame 5 is provided with a pair of sleeves 501 which are respectively in adaptive insertion connection with the pair of connecting rods 4 to adjust the length of the extending connecting rods 4, the pair of sleeves 501 are connected through a bearing grid plate 502, and a balancing weight is not placed for fixing the laser target device 1;
the bottom of the sleeve 501 and the bottom of the segment of the connecting rod 4 close to the laser target 10 are also respectively provided with a pair of supporting legs 504 at intervals, and the supporting legs 504 are telescopic devices and are used for supporting and fixing the laser target device 1.
In the above technical scheme, a pair of sleeve 501 can prolong the length of connecting rod 4, and then increased the mounted position of laser mark target device 1, when meetting the comparatively complicated condition of laser mark target 10 needs unsettled installation and surrounding environment, can install this alignment jig 5 on connecting rod 4, adjust its mounted length through sleeve 501, and set up the balancing weight and increase the steadiness of installation on weighing bearing grid tray 502, utilize locating hole 503 to settle and insert vertical inserted bar simultaneously and carry out interim fixing, the liftable supporting legs 504 of cooperation bottom, make laser mark target device 1 connect more firmly.
A checking method of a checking device for pier stud template deviation and verticality control comprises the following steps:
step S1, mounting the laser target device 1 and the laser plummet 2, performing a calibration, and observing approximate coordinates of a laser aperture of the laser plummet 2 on the laser target 10;
step S2, performing fine horizontal position adjustment on the laser target device 1 and the laser plummet 2 after the primary calibration, first adjusting a first horizontal measuring device on the laser target device 1 to make the laser target 10 in a horizontal state, then adjusting a second horizontal measuring device on the laser plummet 2 to make the second horizontal measuring device in a horizontal state, and then performing secondary calibration to obtain coordinates of the aperture emitted by the laser plummet 2 on the laser target 10.
Further, the adjustable setting of limiting plate 301 through a pair of relative setting on a pair of loading board 302 to press from both sides tightly or loosen the space between the two, and then will including the laser plummet centre gripping is fixed, set up a spread groove 306 on the length direction's of loading board lateral wall, and it is fixed through a fastening bolt who stretches into in the spread groove, fastening bolt 307 includes a pair of nut, one of them nut is located the spread groove, and the diameter is greater than the diameter of spread groove, another nut is located outside the lateral wall of spread groove, connect two nuts through a screw rod, when relaxing, the screw rod drives two nuts and slides along the orientation of seting up of spread groove, during the fastening, the screw rod stretches into in the spread groove and supports in limiting plate 301 that is located the spread groove.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (4)

1. A checking device for deviation and verticality control of pier stud templates is used for detecting and checking the verticality of pier stud installation positions and is characterized in that the checking device for deviation and verticality control of pier stud templates comprises,
the laser target device is arranged right above the pier stud mounting position, and the laser plummet is arranged right below the laser target device and is positioned at the pier stud mounting position, and the laser plummet vertically irradiates the laser target by utilizing laser to determine the mounting position of the laser plummet on the pier stud; the laser target device comprises a laser target device,
the laser target is a plane with a target center, the target center is arranged in the middle of the plane, and the target center is used as an origin to diffuse to the periphery in the circumferential direction to form a target coordinate;
the laser target is also provided with a first horizontal measuring device for measuring the levelness of the laser target;
the laser target device also comprises a frame, wherein the frame is formed by enclosing two pairs of strip-shaped connecting blocks to form a square shape and fixes the laser target;
the laser target device also comprises a pair of connecting rods, the connecting rods are horizontally arranged on one side of the frame and used for being inserted into or pressed on a building to fix the laser target;
the checking device for pier stud template deviation and verticality control further comprises an adjusting frame, wherein the adjusting frame is provided with a pair of sleeves, the sleeves are respectively in adaptive splicing with the pair of connecting rods so as to adjust the length of the extending connecting rods, and the sleeves are connected through a bearing grid plate and used for placing a balancing weight and fixing the laser target device;
the bottom of the sleeve and the bottom of the segment of the connecting rod, which is close to the laser target, are respectively provided with a pair of supporting legs at intervals, and the supporting legs are telescopic devices and are used for supporting and fixing the laser target device;
the checking device for pier stud template deviation and verticality control further comprises a bottom support which is arranged at the bottom of the laser plummet and used for adjusting the levelness of the laser plummet, the bottom support comprises,
the bearing plate is horizontally arranged and used for supporting and placing the laser plummet;
the two pairs of adjusting rods are vertically supported at four corners of the bottom of the bearing plate respectively; all the adjusting rods are telescopic rods, one end of each telescopic rod is hinged to the bottom of the bearing plate through a spherical hinge, and the other end of each telescopic rod is supported on the ground;
the bottom support also comprises a hanging plate which is horizontally hung at the bottom of the bearing plate through a pair of connecting rods and is positioned in a space surrounded by the two pairs of adjusting rods, and a second horizontal measuring device is arranged on the hanging plate and is used for measuring the levelness of the bottom support;
pier stud template off normal, control straightness's that hangs down check device still includes the radar to and radar receiving arrangement, the radar sets up on the hanger plate, radar receiving arrangement sets up on the laser mark target device.
2. The pier stud template deviation and verticality control checking device according to claim 1, wherein the first horizontal measuring device is a circular level bubble.
3. The apparatus for checking deviation and controlling verticality of pier stud formwork according to claim 1, wherein the second horizontal measuring device comprises a plumb line including a plurality of pull wires equidistantly disposed along the bottom of the hanging plate, and a tapered lead block disposed at the end of the plumb line away from the hanging plate.
4. The checking method of the checking device for pier stud template deviation and verticality control according to claim 1, which comprises the following steps:
step S1, mounting the laser target device and the laser plummet, carrying out primary calibration, and observing approximate coordinates of a laser aperture of the laser plummet on the laser target;
and step S2, performing fine horizontal position adjustment on the laser target device and the laser plummet after primary calibration, firstly, adjusting a first horizontal measuring device on the laser target device to enable the laser target to be in a horizontal state, then, adjusting a second horizontal measuring device on the laser plummet to enable the second horizontal measuring device to be in a horizontal state, and then performing secondary calibration to obtain the coordinate of the aperture emitted by the laser plummet on the laser target.
CN202110062243.8A 2021-01-18 2021-01-18 Checking device and checking method for pier column template deviation and verticality control Active CN112923915B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110062243.8A CN112923915B (en) 2021-01-18 2021-01-18 Checking device and checking method for pier column template deviation and verticality control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110062243.8A CN112923915B (en) 2021-01-18 2021-01-18 Checking device and checking method for pier column template deviation and verticality control

Publications (2)

Publication Number Publication Date
CN112923915A CN112923915A (en) 2021-06-08
CN112923915B true CN112923915B (en) 2022-09-16

Family

ID=76163327

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110062243.8A Active CN112923915B (en) 2021-01-18 2021-01-18 Checking device and checking method for pier column template deviation and verticality control

Country Status (1)

Country Link
CN (1) CN112923915B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113790714A (en) * 2021-09-28 2021-12-14 中铁四局集团第四工程有限公司 High pier support displacement monitoring method and system based on laser displacement meter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202903195U (en) * 2012-11-16 2013-04-24 中国科学院金属研究所 Indexing and positioning precision online monitoring system for bent upsetting of marine crank shaft
CN105698776B (en) * 2016-03-18 2019-04-09 中国葛洲坝集团勘测设计有限公司 A kind of two dimension reference vehicular transfer device and its measurement method
CN205825965U (en) * 2016-07-24 2016-12-21 山西省交通科学研究院 A kind of quickly measurement bridge pier column verticality measuring instrument
CN206488775U (en) * 2016-12-28 2017-09-12 辽宁省交通高等专科学校 A kind of easy device for detecting pier stud perpendicularity
CN107228655B (en) * 2017-06-16 2019-06-14 山东大学 A kind of tunnel danger stone real-time displacement monitoring system and method considering rotation effect
DE212018000382U1 (en) * 2017-12-25 2020-07-28 Autel Intelligent Technology Corp., Ltd Vehicle mounted radar calibration device

Also Published As

Publication number Publication date
CN112923915A (en) 2021-06-08

Similar Documents

Publication Publication Date Title
CN105698776B (en) A kind of two dimension reference vehicular transfer device and its measurement method
CN112923915B (en) Checking device and checking method for pier column template deviation and verticality control
CN112502459B (en) Prefabricated shear wall straightness adjusting device that hangs down
CN108225263B (en) Elevation vertical transfer device and method for measuring elevation by using same
CN218373921U (en) Z-shaped steel embedded part positioning auxiliary device
CN116045928A (en) Cantilever type vertical shaft coordinate transmission steel rule and steel wire fixing device and transmission method thereof
CN112985287B (en) Bridge construction deformation monitoring devices
CN212674089U (en) Total powerstation prism pole straightness quick verifying attachment that hangs down
CN213874288U (en) Verticality or right angle precision measuring instrument
CN115162201A (en) Suspension bridge main push-towing rope strand erects and restrains a device
CN212007815U (en) Stability testing tool
CN212507482U (en) Brickwork construction appurtenance
CN210141867U (en) Rod body calibration device
CN111707219A (en) Total station prism rod verticality rapid inspection device and inspection method
CN218626265U (en) Recognition test simulation device for inspection robot instrument
CN216194782U (en) Steel pipe column positioning system
CN215217580U (en) Conversion device
CN212747674U (en) Equipment for detecting size and squareness of door and window opening
CN219386667U (en) Detection device based on contact net location
CN221147752U (en) Novel water level measuring instrument
CN212988332U (en) Base structure of leveling instrument staff
CN216750976U (en) Supporting and positioning auxiliary device used in installation of cable bridge support arm
CN114087945B (en) Hyperbolic funnel measuring device and measuring method thereof
CN213813202U (en) High-precision falling ball impact testing machine
CN217951742U (en) Support frame for laser range finder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant