CN210486775U - Portable deformation detection device - Google Patents

Portable deformation detection device Download PDF

Info

Publication number
CN210486775U
CN210486775U CN201921350900.3U CN201921350900U CN210486775U CN 210486775 U CN210486775 U CN 210486775U CN 201921350900 U CN201921350900 U CN 201921350900U CN 210486775 U CN210486775 U CN 210486775U
Authority
CN
China
Prior art keywords
measuring
rod
dial indicator
telescopic
connector
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
CN201921350900.3U
Other languages
Chinese (zh)
Inventor
鄢传柱
范玉全
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.)
Guangdong Wisdom Testing & Identification Co Ltd
Original Assignee
Guangdong Wisdom Testing & Identification Co Ltd
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 Guangdong Wisdom Testing & Identification Co Ltd filed Critical Guangdong Wisdom Testing & Identification Co Ltd
Priority to CN201921350900.3U priority Critical patent/CN210486775U/en
Application granted granted Critical
Publication of CN210486775U publication Critical patent/CN210486775U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

A portable deformation detection device comprises a telescopic measuring rod, a dial indicator, a measuring connector and a heavy hammer, wherein the telescopic measuring rod is a non-deformable rod with adjustable length, one end of the telescopic measuring rod is vertically contacted with a beam plate, and the other end of the telescopic measuring rod is connected with the dial indicator for detecting vertical displacement; the measuring connector is arranged on the telescopic measuring rod, one end of the measuring connector is hung with a heavy hammer, and the other end of the measuring connector is abutted against the wall to be detected so as to measure the lateral displacement; the dial indicator can be fixed on the gauge stand, the measuring head of the dial indicator is vertically upward, and one end of the telescopic measuring rod can be provided with a spring for supporting the measuring rod. The utility model discloses to the displacement of eminence shift to ground, realize the measurement to vertical displacement of components such as the house side direction deformation and beam slab below 5m, telescopic measuring stick is cup jointed by many sleeve pipes and is formed, and is flexible freely, convenient to carry, whole device simple structure, the assembly and disassembly is convenient, need not to set up auxiliary stand, can easily increase and measure the height and improve measurement accuracy.

Description

Portable deformation detection device
Technical Field
The utility model relates to a measure technical field, especially relate to a portable deformation detection device of the vertical deformation of lateral deformation and structural component in house.
Background
The house lateral deformation detection is a necessary condition for house safety identification, and instruments and equipment such as a theodolite and a total station are generally adopted for measurement, but in field detection, due to the limitation of area conditions, the theodolite can not be used for effective measurement in partial areas.
The detection technology of vertical deformation of structural members (such as beam plates of houses and bridges) mainly comprises electronic or measuring instruments (such as total stations, levels, theodolites and the like), physical sensor methods (such as displacement meters, accelerometers and other sensors), optical photography technology and the like, wherein the methods usually need to install a support and measuring instrument equipment at the bottom of the beam plate, measurement is carried out by directly contacting a measuring device with the bottom of the beam plate, a certain indoor space needs to be provided for erecting the support, the measuring process is complex, and measurement of the beam plate of a common indoor house is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned prior art's shortcoming, providing one kind can fast assembly and dismantlement, convenient to carry, simple, the convenient operation of installation, the high portable deformation detection device of measurement accuracy, can simplify the measurement process greatly, alleviate working strength.
The utility model discloses a realize through following technical scheme:
a portable deformation detection device is used for measuring lateral deformation of a wall body and vertical displacement of a beam plate and comprises a telescopic measuring rod, a dial indicator, a measuring connector and a heavy hammer, wherein the telescopic measuring rod is a hard non-deformation rod with adjustable length; one end of the telescopic measuring rod is connected with the dial indicator or the measuring connector, and the other end of the telescopic measuring rod is vertically abutted against the beam plate to be detected or is held by a measuring person; the dial indicator is arranged on the horizontal ground or on the base on the horizontal ground, the base is adhered to the ground or is arranged on the ground, the fact that the base cannot slide or shake during measurement is guaranteed, the heavy hammer is hung on one end of the measuring connector through a rope line, the other end of the measuring connector is vertically abutted to a wall body to be detected, and therefore vertical displacement of a beam slab or lateral deformation of the wall body can be detected. When carrying out the detection of roof beam board vertical displacement, the one end of telescopic measuring stick contacts with the roof beam board that waits to detect perpendicularly, the other end with the percentage table links to each other, the level subaerial is arranged in to the percentage table, perhaps for the ease of operation and make things convenient for the percentage table reading, places the percentage table on pasting the base on ground, and the base can carry out altitude mixture control as required to detect, thereby directly measure the relative vertical displacement of roof beam board through the reading of reading the percentage table. When the detection of the lateral deformation of the wall body is carried out, the middle part of the measuring connector is vertically fixed at one end of the telescopic measuring rod, the heavy hammer is hung at one end of the measuring connector, the measuring connector is lifted to a proper height through the telescopic measuring rod, the other end of the measuring connector is controlled to vertically abut against the wall body to be detected, the other end of the measuring connector is hung on the heavy hammer on the ground, and the lateral deformation of the measured wall body can be obtained through the difference of the upper horizontal distance and the lower horizontal distance. The device can select the parts to be connected and assembled according to the requirements, and can detect the vertical displacement of the beam slab or the lateral deformation of the wall body, thereby realizing multiple purposes.
Furthermore, the measuring connector is a steel pipe, two end faces of the measuring connector are connected with the axis of the steel pipe body, two ends of the measuring connector are provided with suspension wire slots for connecting a heavy hammer, the heavy hammer is hung on one end of the measuring connector, and the other end of the measuring connector vertically abuts against a wall body to be detected; the middle part of the measuring connector is vertically connected with the end of the telescopic measuring rod through the matching of threads.
Furthermore, one end of the telescopic measuring rod is vertically connected with a transverse supporting rod, the other end of the telescopic measuring rod is vertically contacted with a beam plate to be detected, the dial indicator is installed on the transverse supporting rod, and a measuring head on the dial indicator is vertically contacted with a fixed horizontal plane or a base pasted on the horizontal ground. The telescopic measuring rod is moved to be in contact with different parts on the beam plate, the vertical deformation of the beam plate is reflected on the vertical displacement of the transverse supporting rod at one end of the beam plate, the transverse supporting rod is connected with the dial indicator, and the displacement of the transverse supporting rod can be measured by the dial indicator, so that the vertical displacement of the beam plate is indirectly measured.
Furthermore, a smooth glass plate is arranged between the measuring head on the dial indicator and a fixed horizontal ground or a base on the horizontal ground. The glass plate is used for eliminating the influence of the unevenness on the contact surface on the measurement result.
Furthermore, for conveniently erecting and moving the dial indicator, the measuring device can be flexibly installed, namely, the dial indicator is fixed on the indicator frame, the measuring head of the dial indicator is vertically upward, and one end of the telescopic measuring rod is in contact with the measuring head on the dial indicator. In order to increase the contact area between the telescopic measuring rod and the dial indicator head so as to facilitate measurement, a flat plate can be arranged between the telescopic measuring rod and the dial indicator head.
Furthermore, in order to increase the contact area between the telescopic measuring rod and the dial indicator, the measuring operation is facilitated, one end of the telescopic measuring rod is vertically connected with a transverse supporting rod, and a measuring head on the dial indicator is vertically contacted with the transverse supporting rod. The bottom surface of the transverse supporting rod, which is contacted with the dial indicator head, is a plane so as to increase the contact area.
Furthermore, the telescopic measuring rod is composed of a plurality of sleeves which are sequentially sleeved together, and the tube bodies of the sleeves are made of stainless steel materials; and the side surface of one end of each of the multiple sleeves is vertically provided with an internal thread seat, and the adjacent sleeves are fixedly connected with the internal thread seats through fastening bolts in a matched manner. The fastening bolt is perpendicular to the sleeve pipe body, so that fine sliding of the sleeve pipe is effectively avoided. A plurality of sleeves can be sleeved into one sleeve, so that the sleeve is convenient to carry, or the sleeve can be disassembled into one sleeve for emergency use during detection.
Furthermore, the total length of the telescopic measuring rod is 1.7-5 m, deformation measurement of one-floor to two-floor house walls can be met, the number of the sleeve pipes is 3-4, the length of a single sleeve pipe is increased if the number of the sleeve pipes is too small, the sleeve pipe can generate certain deflection to influence a measuring result, the number of the sleeve pipes is too large, too many joints of the sleeve pipes can influence the stability of the measuring rod, and operation is inconvenient. Many the pipe diameter of sleeve pipe reduces in proper order but does not produce the clearance, avoids the sleeve pipe to produce vertical displacement, makes the axis not parallel each other and influences measuring result.
Furthermore, the two ends of the telescopic measuring rod are provided with internal threads or external threads matched with the connected piece, so that the connected piece can be assembled and disassembled conveniently. The connected piece comprises a measuring connector.
In addition, the end of one end of the telescopic measuring rod connected with the dial indicator can be provided with a spring, and the spring is contacted with the horizontal ground. The setting of spring can be supported telescopic measuring stick by the spring, prevents that telescopic measuring stick from causing the impact to the measuring head of percentage table. The specific operation of performing the vertical displacement measurement is as follows: the length of the telescopic measuring rod is adjusted to enable one end of the telescopic measuring rod to be in contact with a beam plate to be measured, the spring on the other end of the telescopic measuring rod is in contact with the ground and has certain pre-pressure, the length of the telescopic measuring rod is kept fixed in the measuring process, the up-and-down movement of the measuring rod is assisted by the elasticity of the spring, the length of the telescopic spring is the vertical deformation of the beam plate, and the length of the telescopic spring is measured by a dial indicator connected with the telescopic measuring rod.
The device of the utility model consists of a telescopic measuring rod, a dial indicator, a measuring connector and a heavy hammer, and can transfer the displacement to the high place to the ground, realize the measurement of the house lateral deformation below 5m (the hand-held and the added base can extend to 6m) and the vertical displacement of the components such as beam plates, has multiple purposes, simple structure, convenient assembly and disassembly, no need of erecting an auxiliary support, and can easily increase the measuring height, effectively improve the measuring precision and lighten the working strength compared with the traditional measuring method; the telescopic measuring rod is formed by sleeving a plurality of sleeves, can be freely adjusted within the range of 1.7-5.0 m, can be disassembled into one piece, has the advantages of free extension, convenience in carrying, simplicity in installation, time and labor conservation, convenience in operation and the like, can effectively reduce the working strength, improve the working efficiency, enable the deformation measurement to be abnormally simple and ensure the measuring precision; the device can flexibly select an implementation mode according to the actual situation or facility situation on site, is suitable for various on-site detection conditions, and has wide applicability.
Drawings
Fig. 1 is the utility model discloses the vertical deformation of beam slab measures the structure chart.
Fig. 2 is the structure diagram of the lateral deformation measurement structure of the wall body in embodiment 1 of the present invention.
Fig. 3 is an enlarged detail view at a in fig. 2.
Fig. 4 is an enlarged view of a partial structure of the telescopic measuring rod in embodiment 1 of the present invention.
Fig. 5 is the structure diagram for measuring vertical deformation of the beam slab of embodiment 2 of the present invention.
Fig. 6 is the structure diagram for measuring vertical deformation of the beam slab of embodiment 3 of the present invention.
Fig. 7 is a structure diagram for measuring vertical deformation of a beam plate according to embodiment 4 of the present invention.
Reference numerals: 1-a telescopic measuring rod; 2-dial indicator; 3-measuring the connector; 4-weight dropper; 5-transverse supporting rods; 6-a glass plate; 7-ground; 8-beam slab; 9-a watch frame; 10-a base; 11-a sleeve; 12-a threaded seat; 13-fastening bolts; 14-external threads; 15-a wall body; 16-plate; 21-measuring head.
Detailed Description
Example 1
A portable deformation detection device is used for measuring lateral deformation of a wall body and vertical displacement of a beam plate, and comprises a telescopic measuring rod 1, a dial indicator 2, a measuring connector 3 and a heavy hammer 4, as shown in figures 1 and 2.
As shown in fig. 1 and 4, the telescopic measuring rod 1 is formed by sleeving three stainless steel sleeves 11 with the diameters of phi 25mm, phi 22mm and phi 19mm, the thickness of about 0.8-1.0 mm and the length of about 1.7m, an internal thread seat 12 is vertically arranged on the side surface of one end of the outer sleeve 11, and the inner sleeve 11 and the outer sleeve 11 are fixedly connected and adjusted in length through the matching of a fastening bolt 13 and the internal thread seat 12. The fastening bolt 13 is perpendicular to the casing 11 body, effectively avoids the slight slip of casing 11. The two ends of the telescopic measuring rod 1 are provided with internal threads or external threads 14 matched with the connected piece, so that the connected piece can be assembled and disassembled conveniently.
One end of the telescopic measuring rod 1 is connected with the dial indicator 2 or the measuring connector 3, and the other end of the telescopic measuring rod 1 is vertically abutted with a beam plate to be detected or is held by a detector; the dial indicator 2 is arranged on the horizontal ground, the heavy hammer 4 is hung on one end of the measuring connector 3 through a rope line, and the other end of the measuring connector 3 is vertically abutted with a wall body 15 to be detected so as to detect vertical displacement of a beam plate or lateral deformation of the wall body 15.
As shown in fig. 1, when detecting the vertical displacement of the beam plate 8, one end of the telescopic measuring rod 1 is vertically connected with a transverse supporting rod 5, the other end of the telescopic measuring rod is vertically contacted with the beam plate 8 to be detected, the dial indicator 2 is installed on the transverse supporting rod 5, and a measuring head 21 on the dial indicator 2 is contacted with a smooth glass plate 6 placed on a horizontal ground 7. The glass plate 6 can eliminate the influence of unevenness on the horizontal floor 7 on the measurement result.
The telescopic measuring rod 1 is moved to be in contact with different parts on the beam plate 8, the vertical deformation of the beam plate 8 is reflected on the vertical displacement of the transverse supporting rod 5 at one end of the beam plate, the transverse supporting rod 5 is connected with the dial indicator 2, the displacement of the transverse supporting rod 5 can be measured by the dial indicator 2, and therefore the vertical displacement of the beam plate 8 is indirectly measured. In order to improve the accuracy of the measurement, the dial indicator 2 can be replaced by a dial indicator.
As shown in fig. 3, the measuring connector 3 is a steel pipe with a length of 20cm, two end faces of the steel pipe are perpendicular to a horizontal plane, two ends of the steel pipe are provided with suspension wire slots for connecting the weight 4, the weight 4 hangs on one end, and the other end of the weight vertically abuts against the wall 15 to be detected; the middle part of the measuring connector 3 is connected with the end of the telescopic measuring rod 1 through the matching of threads. When detecting the lateral deformation of the wall body 15, the heavy hammer 4 hangs at one end of the measuring connector 3, the other end of the measuring connector 3 vertically supports against the wall body 15 to be detected, after the measuring connector 3 is lifted to a proper height through the telescopic measuring rod 1, the lateral deformation of the high wall body 15 can be measured by the heavy hammer 4 hanging at the other end of the measuring connector 3 to the ground 7.
Example 2
The rest is the same as the embodiment 1, as shown in fig. 5, except that the dial indicator 2 is placed on the base 10, the measuring head 21 of the dial indicator 2 is in contact with the upper surface of the base 10, the base 10 is placed on a horizontal ground, and when the base 10 is light, the base 10 can be fixed on the horizontal ground in an adhesive manner, so that the reading of the dial indicator can be conveniently observed. The height of the base can be set according to the requirement, the upper surface and the lower surface of the base are parallel to the ground, and the upper surface is flat so as not to influence the reading of the dial indicator 2.
Example 3
The rest is the same as embodiment 1, as shown in fig. 6, except that the dial indicator 2 is fixed on the frame 9, the measuring head 21 thereof faces vertically upwards, one end of the telescopic measuring rod 1 contacts with the measuring head 21 on the dial indicator 2, in this embodiment, in order to increase the contact area between the telescopic measuring rod 1 and the measuring head 21, a flat plate 16 is fixed on the head of the telescopic measuring rod 1, the frame 9 is set to be convenient for erecting and moving the dial indicator 2, and the measuring head 21 of the dial indicator 2 faces vertically upwards to contact with one end of the telescopic measuring rod 1, so that the detection result can be visually reflected.
Example 4
The rest is the same as the embodiment 3, as shown in fig. 7, except that one end of the telescopic measuring rod 1 is vertically connected with the transverse supporting rod 5, for the convenience of measurement, the bottom surface of the transverse supporting rod 5 in contact with the measuring head 21 of the dial indicator 2 in the embodiment is a plane, the measuring head 21 on the dial indicator 2 is vertically contacted with the transverse supporting rod 5, and the contact area between the telescopic measuring rod 1 and the dial indicator 2 is increased to facilitate the measurement operation.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.

Claims (10)

1. A portable deformation detection device is used for measuring lateral deformation of a wall body and vertical displacement of a beam plate and is characterized by comprising a telescopic measuring rod, a dial indicator, a measuring connector and a heavy hammer; the telescopic measuring rod is a hard non-deformable rod with adjustable length, one end of the telescopic measuring rod is connected with the dial indicator or the measuring connector, and the other end of the telescopic measuring rod is vertically abutted to the beam plate to be detected or is held by a measurer; the dial indicator is arranged on the horizontal ground or on a horizontal base adhered to the ground, the heavy hammer is hung on one end of the measuring connector through a rope, and the other end of the measuring connector is vertically abutted with a wall to be detected.
2. The portable deformation detecting device according to claim 1, wherein the measuring connector is a steel pipe, two end faces of the measuring connector are perpendicular to the axis of the steel pipe body, two ends of the measuring connector are provided with suspension wire slots for connecting a weight to eliminate a measuring error, the weight is hung on one end, and the other end of the weight is vertically abutted against a wall to be detected; the middle part of the measuring connector is vertically connected with the end of the telescopic measuring rod through the matching of threads.
3. The portable deformation detecting device according to claim 1, wherein a transverse support rod is vertically connected to one end of the telescopic measuring rod, the dial indicator is mounted on the transverse support rod, and a measuring head of the dial indicator vertically contacts with the ground or a horizontal surface of a base adhered to the ground.
4. The portable deformation inspection device of claim 2, wherein a smooth glass plate is disposed between the measuring head of the dial indicator and the horizontal ground or the base on the horizontal ground.
5. The portable deformation detecting device according to claim 1, wherein the dial indicator is fixed on the frame with its measuring head facing vertically upward, and one end of the telescopic measuring rod is in contact with the measuring head of the dial indicator.
6. The portable deformation detecting device according to claim 4, wherein a transverse supporting rod is vertically connected to one end of the telescopic measuring rod, and the measuring head of the dial indicator vertically contacts with the transverse supporting rod.
7. The portable deformation detection device according to claim 1, wherein the retractable measuring rod is composed of a plurality of sleeves sleeved together in sequence, and the tube bodies of the sleeves are made of stainless steel; and the side surface of one end of each of the multiple sleeves is vertically provided with an internal thread seat, and the adjacent sleeves are fixedly connected with the internal thread seats through fastening bolts in a matched manner.
8. The portable deformation detection device according to claim 7, wherein the total length of the telescopic measuring rod is 1.7-5 m, and the number of the sleeves is 3-4; the pipe diameters of the sleeves are sequentially reduced without generating gaps, so that the sleeves are prevented from generating vertical displacement, and the axes are not parallel to each other to influence the measurement result.
9. The portable deformation sensing device according to any one of claims 1 to 8, wherein both ends of the telescopic measuring rod are provided with internal or external threads for matching with a connected member, the connected member including a measuring connector.
10. The portable deformation sensing device of any one of claims 1 to 7, wherein the upper and lower surfaces of the base are parallel to a horizontal ground surface, and the upper surface is flat.
CN201921350900.3U 2019-08-19 2019-08-19 Portable deformation detection device Active CN210486775U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921350900.3U CN210486775U (en) 2019-08-19 2019-08-19 Portable deformation detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921350900.3U CN210486775U (en) 2019-08-19 2019-08-19 Portable deformation detection device

Publications (1)

Publication Number Publication Date
CN210486775U true CN210486775U (en) 2020-05-08

Family

ID=70536561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921350900.3U Active CN210486775U (en) 2019-08-19 2019-08-19 Portable deformation detection device

Country Status (1)

Country Link
CN (1) CN210486775U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112197683A (en) * 2020-11-27 2021-01-08 董光亮 Bridge beam supports warp automatic check out system
CN112460421A (en) * 2020-11-11 2021-03-09 南京信息工程大学 Heavily pollute weather influence analysis with portable low latitude air detection device
CN112782001A (en) * 2020-12-30 2021-05-11 Tcl王牌电器(惠州)有限公司 Yield stress measuring device
CN113983915A (en) * 2021-10-21 2022-01-28 中船黄埔文冲船舶有限公司 Tool ruler for measuring deformation quantity of pile leg and using method thereof
CN114739336A (en) * 2022-04-26 2022-07-12 岚图汽车科技有限公司 Device, method and equipment for detecting position and size of vehicle door glass and readable storage medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112460421A (en) * 2020-11-11 2021-03-09 南京信息工程大学 Heavily pollute weather influence analysis with portable low latitude air detection device
CN112197683A (en) * 2020-11-27 2021-01-08 董光亮 Bridge beam supports warp automatic check out system
CN112197683B (en) * 2020-11-27 2022-09-06 湖北楚晟科路桥技术开发有限公司 Bridge beam supports warp automatic check out system
CN112782001A (en) * 2020-12-30 2021-05-11 Tcl王牌电器(惠州)有限公司 Yield stress measuring device
CN113983915A (en) * 2021-10-21 2022-01-28 中船黄埔文冲船舶有限公司 Tool ruler for measuring deformation quantity of pile leg and using method thereof
CN114739336A (en) * 2022-04-26 2022-07-12 岚图汽车科技有限公司 Device, method and equipment for detecting position and size of vehicle door glass and readable storage medium

Similar Documents

Publication Publication Date Title
CN210486775U (en) Portable deformation detection device
CN110440772A (en) A kind of plumb line multiple spot three-dimensional displacement test macro and its test data processing method
CN106092036A (en) A kind of formwork-support deformation remote real time monitoring system and method
CN105627896A (en) Bridge flexibility detection device and detection method
CN218646262U (en) Steel beam deformation detection device
CN102288149B (en) Brake disc camber angle detection device and brake disc production line device
CN102322827A (en) Combined multi-point deflectometer and method for measuring deflection
CN103389158B (en) Portable field spectrum vertical testing frame
CN210952737U (en) Flatness detection device for building construction template
CN106052625A (en) Method for measuring concentricity of cylindrical body
CN203687831U (en) Measuring subassembly for measuring thickness of floor plate
CN202599633U (en) Bridge deflection test instrument
CN105091773A (en) Detection apparatus for forklift mast flexibility measurement
CN103954196A (en) Measuring bar and measuring method for measuring interior net storey height
CN107782492B (en) A kind of modular mechanical shoulder joint torque sensor calibrating platform
CN110006358A (en) A kind of measuring device of vertical deformation
CN214666862U (en) Foundation ditch bank protection measuring device
CN203323872U (en) Portable outdoor spectrum vertically testing rack
CN106123844A (en) Steel member deformation detection instrument and use method thereof
CN208043058U (en) A kind of fixed wireless inclination measurement device
CN101769737A (en) statoscope
CN205691078U (en) Distributed deformation measurement apparatus and optical fiber grating inclination angle sensor, structure
CN205037874U (en) Detection apparatus for be used for fork truck portal amount of deflection to measure
CN207439471U (en) Foundation pit intelligent checking system
CN221147752U (en) Novel water level measuring instrument

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder

Address after: 510000 room 1009, 108 Danan Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee after: Guangdong wisdom testing & identification Co.,Ltd.

Address before: 510000 room 2, room 101, building 4, no.375-1, HuiFu West Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee before: Guangdong wisdom testing & identification Co.,Ltd.

CP02 Change in the address of a patent holder