CN111174762A - Measure hang down straightness's instrument of wall post template - Google Patents

Measure hang down straightness's instrument of wall post template Download PDF

Info

Publication number
CN111174762A
CN111174762A CN202010241398.3A CN202010241398A CN111174762A CN 111174762 A CN111174762 A CN 111174762A CN 202010241398 A CN202010241398 A CN 202010241398A CN 111174762 A CN111174762 A CN 111174762A
Authority
CN
China
Prior art keywords
support rod
measuring
perpendicularity
stay bar
wall column
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.)
Pending
Application number
CN202010241398.3A
Other languages
Chinese (zh)
Inventor
冯展
陈江伟
龚光凯
罗亚军
张中新
张政印
郑思
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.)
China Construction Seventh Engineering Division Corp Ltd
Original Assignee
China Construction Seventh Engineering Division Corp 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 China Construction Seventh Engineering Division Corp Ltd filed Critical China Construction Seventh Engineering Division Corp Ltd
Priority to CN202010241398.3A priority Critical patent/CN111174762A/en
Publication of CN111174762A publication Critical patent/CN111174762A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a tool for measuring the perpendicularity of a wall column template, which comprises an upper support rod and a lower support rod which are arranged in parallel, wherein scales are arranged on the upper support rod and the lower support rod, and the upper support rod and the lower support rod are connected through a telescopic assembly; the vertical measuring component is used for measuring the verticality of the wall column panel and is detachably connected with the upper stay bar; the telescopic assembly is horizontally arranged in the upper stay bar and the lower stay bar in a sliding manner. The vertical measuring component is simple in structure and convenient to use, and the vertical measuring component is detachably connected with the upper support rod and is convenient to arrange and store; the telescopic assembly is adjustable, the size of the measuring device is reduced, the telescopic assembly has good applicability, and the telescopic assembly can be applied to accurate measurement of the perpendicularity of the wall column template after the wall column template is reinforced on a construction site.

Description

Measure hang down straightness's instrument of wall post template
Technical Field
The invention belongs to the technical field of building construction template engineering, and particularly relates to a tool for measuring the perpendicularity of a wall column template.
Background
Plumbous surveyor for building is used for the straightness measurement that hangs down usually, but at wall post template support reinforcement in-process, this surveyor can't adsorb and can't use on the template surface, even wall post template is the adsorbable material of magnet, also can be because there is wall post inferior stupefied or wall post owner stupefied etc. in the wall post template outside, occupied about 13-17 cm's working face, and lead to the hammer line can't normally hang down, lead to unable plumbous surveyor of using, and measured efficiency also is difficult in order to guarantee. If one person operates, the vertical measuring instrument is firstly climbed to a corresponding height along the wall column panel bracket, then the vertical measuring instrument is fixed at the upper part of the wall column panel bracket, then the lower part is measured, and then the vertical measuring instrument is taken down after the vertical measuring instrument climbs to the corresponding height. If the operation is carried out by two persons, the manpower is wasted, the construction cost is increased, and the overall benefit is lower. Therefore, the existing vertical measuring device for the building can obviously not meet the verticality measurement in the reinforcing process of the wall column panel support.
Two kinds of wall post template measurement methods that present building site was used commonly do:
1) two persons operate: one person climbs to the corresponding height of the wall column template support, manually lowers the plumb bob, manually measures the distance from the template at the upper part of the wall column to the plumb bob by adopting a steel tape, manually measures the distance from the plumb bob to the template at the lower part of the wall column to the plumb bob by another person, and evaluates the perpendicularity of the wall column template through the difference value of two measured values.
The biggest disadvantage of this method is that it is difficult for the person operating the plumb bob to make the plumb bob relatively stable in the horizontal position, and the plumb bob is manually measured while holding the plumb bob, and the error is too large.
2) Single-person operation: the method comprises the steps of radiating laser hammer lines by using a laser level, measuring the distances from templates at the upper part and the lower part of the wall column to the laser hammer lines by using a measuring tape, and evaluating the perpendicularity of the wall column template through the difference value of the two measured values.
The biggest defects of the method are that the quality of the instrument purchased by a worker is difficult to ensure, the instrument is used for a long time and is not protected in place, and the accuracy of the instrument is far beyond the allowable requirement but is not known; moreover, when a worker operates the laser level, the worker usually does not pay attention to leveling in order to deal with the situation, so that the laser level is not used in a standard way, and a measurement result has larger deviation; in addition, the effective use functional radius of the laser level meter is about 10m, but through site observation, workers generally measure the verticality of all visible areas after the laser level meter is erected once for convenience, so that major deviation is caused by irregular use of the laser level meter; even if do not have above-mentioned problem moreover, when still having the distance of measuring wall post panel to the laser hammer line, measurement personnel need climb to wall post upper portion earlier, come down to survey the wall post lower part again, and work efficiency is low, and measurement personnel make a round trip to climb, have the safety risk.
Disclosure of Invention
Aiming at the problems of inaccurate measurement and low measurement efficiency of the existing measuring device, the invention provides a tool for measuring the perpendicularity of a wall column template, and solves the problems of inconvenience in measuring the perpendicularity of a wall column panel and inconvenience in carrying and using the measuring tool.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a tool for measuring the perpendicularity of a wall column template comprises a lower support rod and an upper support rod which are arranged in parallel, wherein scales are arranged on the upper support rod and the lower support rod, and the upper support rod is connected with the lower support rod through a telescopic assembly; the vertical measuring component is used for measuring the verticality of the wall column panel and is detachably connected with the upper stay bar; the telescopic assembly is horizontally arranged in the upper stay bar and the lower stay bar in a sliding manner.
The vertical measuring assembly comprises a shell, the shell is arranged between an upper support rod and a lower support rod, a scroll is rotatably arranged in the shell, a hammer line is wound on the scroll, and a crank is rotatably arranged at one end of the scroll; the crank handle is arranged outside the shell, the crank handle is manually rotated, the reel rotates, and the length of the hammer line can be adjusted by rotating the reel; one end of the hammer line is connected with the line hammer, and the hammer line is vertical to the lower support rod; the upper support rod is a magnetic upper support rod, and the shell is connected with the magnetic upper support rod through a magnetic body.
The magnetic body is arranged on the upper part of the shell, and the magnetic body is also arranged on the left side wall and/or the right side wall of the shell.
The lower part of the shell is fixedly provided with a positioning piece for vertically positioning the hammer line, and the hammer line and the right side wall or the left side wall of the shell are positioned on the same vertical surface.
The telescopic assembly comprises at least two telescopic rods in sliding connection, the upper and lower parts of the two telescopic rods are respectively in sliding connection with the upper magnetic support rod and the lower magnetic support rod, and a hook used for being connected with a wall column main ridge is fixedly arranged on the telescopic rod on the upper part of the telescopic assembly.
The crank comprises a rocker and a handle, one end of the rocker is fixedly connected with the scroll, and the other end of the rocker is provided with a through hole; the shell is provided with a fixing groove, and two ends of the handle are respectively arranged in the fixing groove and the through hole.
One side of the lower stay bar far away from the wall column panel is provided with a plurality of positioning grooves for placing the hammer line.
The invention has the beneficial effects that:
(1) the structure is simple, the use is convenient, and the vertical measuring component is detachably connected with the upper stay bar, so that the arrangement and the storage are convenient; the telescopic assembly is adjustable, the size of the measuring device is reduced, the applicability is good, and the device can be applied to accurate measurement of the perpendicularity of the wall column template after the wall column template is reinforced on a construction site;
(2) the device can be operated by a single person, labor is saved, after the plumb bob is fast and stable, the scales of the lower stay bar are directly read, the verticality of the wall column panel can be quickly and rapidly judged, and the measuring efficiency is high;
(3) the measuring accuracy is high, and last vaulting pole is placed with lower vaulting pole close to the wall post panel, and measuring error is little.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the connection between the upper stay bar and the telescopic assembly.
Fig. 3 is a schematic structural view of the upper stay bar.
Fig. 4 is a schematic view of the connection of the lower stay bar and the telescopic assembly.
Fig. 5 is a schematic view of the retraction assembly after being extended.
In the figure, 1 is an upper support rod, 1-1 is a sliding groove, 2 is a hook, 3 is a first telescopic rod, 4 is a second telescopic rod, 5 is a third telescopic rod, 6 is a fourth telescopic rod, 7 is a fastener I, 8 is a fastener II, 9 is a lower support rod, 10 is a shell, 11 is a scroll, 11-1 is a rocker, 11-2 is a handle, 12 is a magnetic body, 13 is a hammer line, 14 is a line hammer, 15 is a main edge of a wall column, 16 is a secondary edge of the wall column, and 17 is a panel of the wall column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
A tool for measuring the perpendicularity of a wall column template is shown in figure 1 and comprises an upper support rod 1 and a lower support rod 9 which are arranged in parallel, wherein scales are arranged on the upper support rod 1 and the lower support rod 9, so that the perpendicularity of a wall column panel 17 can be conveniently determined by comparing the scales on the upper support rod 1 and the lower support rod 9, the upper support rod 1 and the lower support rod 9 are connected through a telescopic assembly, and the distance between the upper support rod 1 and the lower support rod 9 can be adjusted by adjusting the telescopic assembly; the vertical measuring component for measuring the verticality of the wall column panel 17 is vertically arranged on the upper support rod 1, and the vertical measuring component is detachably connected with the upper support rod 1 so as to be convenient to disassemble, assemble and carry; the telescopic assembly is horizontally arranged in the upper stay bar 1 and the lower stay bar 9 in a sliding manner so as to be suitable for the combination of wall column panels 17, secondary ridges 16 and main ridges 15 of wall columns with different sizes. When the measurement is needed, the upper supporting rod 1 and the lower supporting rod 9 are placed in a manner of being perpendicular to the wall column panel 17 in a clinging manner, after the position of the telescopic assembly is adjusted, the vertical measurement assembly is connected to one side of the upper supporting rod 1, which is far away from the wall column panel 17.
The vertical measuring assembly comprises a shell 10, the shell 10 is arranged between an upper support rod 1 and a lower support rod 9, a scroll 11 is rotatably arranged in the shell 10, a hammer line 13 is wound on the scroll 11, and a crank is rotatably arranged at one end of the scroll 11; the crank is arranged outside the housing 10; the rotation of the reel 11 is driven by rotating the crank, and the length of the hammer line 13 can be adjusted when the reel 11 rotates; one end of the hammer line 13 is connected with the line hammer 14, and the hammer line 13 is vertical to the lower support rod 9; the plumb bob 14 is a heavy bob, when measurement is needed, the crank is rotated to elongate the plumb bob 13, and the plumb bob 14 freely falls by means of gravity; the upper stay 1 is a magnetic upper stay, and the housing 10 is connected to the magnetic upper stay through a magnetic body 12. The magnetic upper stay bar is detachably connected with the shell 10, the position of the vertical measuring component on the magnetic upper stay bar can be flexibly adjusted, the vertical measuring component can be conveniently detached in the later period, and the vertical measuring component can be conveniently and independently used for measuring the verticality of other objects.
The magnetic body 12 is arranged at the upper part of the casing 10, the magnetic body 12 at the upper part is used for being connected with the magnetic upper stay bar, the magnetic body 12 is also arranged on the left side wall and/or the right side wall of the casing 10, and the magnetic body 12 on the left side wall or the right side wall of the casing 10 can be used for being adsorbed with other magnetic objects so as to conveniently measure the verticality of other objects. When the vertical measuring component, the magnetic upper stay bar and the lower stay bar 9 are used in a combined mode, the vertical measuring component is adsorbed to the lower portion of one side, far away from the wall column panel 17, of the magnetic upper stay bar, the magnetic upper stay bar and the magnetic lower stay bar 9 are both placed perpendicular to the wall column panel 17, the verticality of the wall column panel 17 can be judged by comparing the scale displayed on the magnetic upper stay bar by the upper portion of the hammer line 13 with the scale displayed on the lower stay bar 9 by the lower portion of the hammer line 13, and if the scale on the upper portion is larger than the scale on the lower portion, the fact that the upper portion of the wall column is recessed and the lower portion is protruded is indicated; if the scale on the upper part is smaller than that on the lower part, the upper part of the wall column is protruded and the lower part is recessed; if the scale on the upper part is equal to the scale on the lower part, the vertical wall column is indicated.
The lower part of the casing 10 is fixedly provided with a positioning piece for vertically positioning the hammer line 13, and the hammer line 13 and the right side wall or the left side wall of the casing 10 are positioned on the same vertical surface, so that the scales corresponding to the upper part of the upper hammer line 13 on the magnetic upper stay bar can be directly read through the right side wall or the left side wall of the casing 10. In this embodiment, the positioning element may be a hook or a positioning hole.
The telescopic assembly comprises at least two telescopic rods in sliding connection, in the embodiment, the number of the telescopic rods is four, the four telescopic rods are thin-walled steel tubes, the diameters of the four telescopic rods are gradually changed, the set range of the section diameter of the first telescopic rod 3 is 10-12mm, the set range of the section diameter of the second telescopic rod 4 is 13-15mm, the set range of the section diameter of the third telescopic rod 5 is 16-18mm, and the set range of the section diameter of the fourth telescopic rod 6 is 19-21mm, as shown in fig. 5, the four telescopic rods are sequentially sleeved and connected according to the diameters, and the diameter difference of 0.2mm is arranged at the joint of every two telescopic rods to limit separation; in addition, every two telescopic rods can be connected through a spring column, so that the telescopic rod is convenient to stretch; first telescopic link 3, second telescopic link 4, third telescopic link 5 and the 6 backs of having shrunk down of fourth telescopic link, only first telescopic link 3 and the 6 visions of fourth telescopic link, second telescopic link 4 and third telescopic link 5 are all hidden, so set up the overall size who has reduced the instrument, portable. Fastening screws can be arranged between every two telescopic rods, and the telescopic rods can be fixed after being extended, so that the whole body is more stable.
As shown in fig. 2 and 3, the middle part of the magnetic upper stay bar is provided with a sliding groove 1-1, the upper end of the first telescopic rod 3 is arranged in the sliding groove 1-1, and the upper end of the first telescopic rod 3 is in threaded connection with the magnetic upper stay bar through a fastener I7. After the fastening piece I7 is adjusted, the telescopic assembly is moved, the fastening piece I7 and the telescopic assembly can slide along the sliding groove 1-1, so that the distance between the telescopic assembly and the main edge 15 of the wall column and the position between the telescopic assembly and the secondary edge 16 of the wall column are adjusted to avoid interference, the distance between the magnetic upper supporting rod and the magnetic lower supporting rod 9 can be adjusted by adjusting the telescopic assembly, and the wall column panels 17 with different heights can be conveniently measured; the lower support rod 9 is provided with a sliding groove, the sliding groove and the sliding groove 1-1 are correspondingly arranged, the fourth telescopic rod 6 is arranged in the sliding groove, as shown in fig. 4, the fourth telescopic rod 6 is connected with the lower support rod 9 through a fastening piece II8, and the fastening piece II8 is rotated to fix the fourth telescopic rod 6 in the lower support rod 9; fixed couple 2 that is used for being connected with stupefied 15 of wall post that is equipped with on the first telescopic link 3, couple 2 can set up to semi-circular or right angle shape component etc. be convenient for hang on stupefied 15 of wall post of different forms such as square timber, square pipe, square round knot to closely laminate with stupefied 15 of wall post owner.
The crank comprises a rocker 11-1 and a handle 11-2, one end of the rocker 11-1 is fixedly connected with the reel 11, and the other end of the rocker 11-1 is provided with a through hole; a fixing groove is formed in the shell 10, and two ends of the handle 11-2 are respectively arranged in the fixing groove and the through hole; the fixing grooves are arranged along the circumferential direction of the reel 11, and the distance between the fixing grooves and the central point of the reel 11 is equal to the length of the handle 11-2. The handle 11-2 is rotated manually, the reel 11 and the rocker 11-1 rotate synchronously, the hammer line 13 is convenient to contract, and the handle 11-2 can be inserted into the fixing groove for fixing after the measurement is finished or when the handle 11-2 needs to be fixed.
One side of the lower stay bar 9 far away from the wall column panel 17 is provided with a plurality of positioning grooves for placing the hammer line 13, and the positioning grooves are arranged so that the left and right swinging of the hammer line 13 can be reduced while the normal use of the hammer line 13 is not influenced, and the scales of the lower stay bar 9 can be read conveniently.
In this embodiment, the first telescopic rod 3, the second telescopic rod 4, the third telescopic rod 5, the fourth telescopic rod 6 and the hook 2 are all made of aluminum alloy materials or other light high-strength materials; the magnetic upper stay bar and the magnetic lower stay bar 9 are both steel rulers with the length of 25cm, the minimum scale of the steel ruler is 0.5mm, and hollow grooves with the width of 3mm are formed in the positions 13-17cm of each steel ruler; the hammer line 13 is a yellow, striking thread with a diameter of 1.2 mm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. The tool for measuring the perpendicularity of the wall column template is characterized by comprising an upper support rod (1) and a lower support rod (9) which are arranged in parallel, wherein scales are arranged on the upper support rod (1) and the lower support rod (9), and the upper support rod (1) is connected with the lower support rod (9) through a telescopic assembly; the vertical measuring component for measuring the perpendicularity of the wall column panel (17) is arranged on the upper stay bar (1), and the vertical measuring component is detachably connected with the upper stay bar (1); the telescopic assembly is horizontally arranged in the upper support rod (1) and the lower support rod (9) in a sliding mode.
2. The tool for measuring the perpendicularity of the wall stud template according to claim 1, wherein the vertical measuring assembly comprises a housing (10), the housing (10) is arranged between an upper stay bar (1) and a lower stay bar (9), a reel (11) is rotatably arranged in the housing (10), a hammer line (13) is wound on the reel (11), and a crank is rotatably arranged at one end of the reel (11); the crank is arranged outside the shell (10); one end of the hammer line (13) is connected with the line hammer (14), and the hammer line (13) is vertical to the lower stay bar (9); the upper support rod (1) is a magnetic upper support rod, and the shell (10) is connected with the magnetic upper support rod through a magnetic body (12).
3. The tool for measuring the perpendicularity of the wall stud template according to claim 2, wherein the magnetic body (12) is arranged at the upper part of the housing (10), and the magnetic body (12) is also arranged on the left side wall and/or the right side wall of the housing (10).
4. The tool for measuring the perpendicularity of the wall column formwork according to claim 2 or 3, wherein a positioning piece for vertically positioning the hammer line (13) is fixedly arranged at the lower part of the casing (10), and the hammer line (13) and the right side wall or the left side wall of the casing (10) are positioned on the same vertical plane.
5. The tool for measuring the perpendicularity of the wall column formwork as claimed in claim 4, wherein the telescopic assembly comprises at least two telescopic rods in sliding connection, the upper portion and the lower portion of each telescopic rod are respectively in sliding connection with the magnetic upper supporting rod and the magnetic lower supporting rod (9), and a hook (2) used for being connected with a main ridge (15) of the wall column is fixedly arranged on the telescopic rod on the upper portion.
6. The tool for measuring the perpendicularity of the wall column template according to claim 2 or 5, wherein the crank comprises a rocker (11-1) and a handle (11-2), one end of the rocker (11-1) is fixedly connected with the reel (11), and the other end of the rocker (11-1) is provided with a through hole; the shell (10) is provided with a fixing groove, and two ends of the handle (11-2) are respectively arranged in the fixing groove and the through hole.
7. Tool for measuring the perpendicularity of wall stud formworks according to claim 6, characterized in that one side of the lower stay bar (9) far away from the wall stud panel (17) is provided with a plurality of positioning grooves for placing the hammer line (13).
CN202010241398.3A 2020-03-31 2020-03-31 Measure hang down straightness's instrument of wall post template Pending CN111174762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010241398.3A CN111174762A (en) 2020-03-31 2020-03-31 Measure hang down straightness's instrument of wall post template

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010241398.3A CN111174762A (en) 2020-03-31 2020-03-31 Measure hang down straightness's instrument of wall post template

Publications (1)

Publication Number Publication Date
CN111174762A true CN111174762A (en) 2020-05-19

Family

ID=70648568

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010241398.3A Pending CN111174762A (en) 2020-03-31 2020-03-31 Measure hang down straightness's instrument of wall post template

Country Status (1)

Country Link
CN (1) CN111174762A (en)

Similar Documents

Publication Publication Date Title
CN108414029A (en) Wall column verticality, flatness, levelness detection ruler and its detection method
CN213932497U (en) C type wall body straightness detection device that hangs down
CN215373993U (en) Laser verticality measuring device for column and wall of new building
CN211373593U (en) Measure hang down straightness's instrument of wall post template
CN110763121A (en) Wall post template straightness guiding rule that hangs down of short-term test
CN218628355U (en) Verticality detection equipment
CN111174762A (en) Measure hang down straightness's instrument of wall post template
CN218765268U (en) Building vertical detection equipment
CN207501847U (en) The testing apparatus for verticality of vertical structure
CN217818758U (en) Quick measuring tool for perpendicularity of wall column template in construction site
CN215524629U (en) Measuring device for building engineering management
CN114777752A (en) Perpendicularity measuring instrument for shear wall template
JP2011208417A (en) Horizontal positioning implement for stepped part
CN210533371U (en) Building design spot measurement room auxiliary stand is built in room
CN209310816U (en) A kind of wall column formwork verticality measurement device
CN211651598U (en) Novel plumb bob measuring tool
CN213748402U (en) Digital display precision measuring instrument for measuring major diameter main cable strand of suspension bridge
CN211696422U (en) Tool for detecting verticality of template
CN212030438U (en) Concrete prefabricated part flatness detection device
CN209783595U (en) Portable template verticality measuring tool
CN221147631U (en) Simple and easy regulation formula wall form straightness measuring apparatu that hangs down
CN221037410U (en) Portable inclination measuring device
CN216815502U (en) Verticality detection tool
CN217058834U (en) Be used for template squareness measurement instrument
CN118149766A (en) Portable wall body straightness short-term test instrument that hangs down

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
CB02 Change of applicant information

Address after: No.267, 15th Street, Jingkai, Zhengzhou, Henan Province, 450003

Applicant after: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd.

Address before: 450003 No. 108 Chengdong Road, Jinshui District, Henan, Zhengzhou

Applicant before: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd.

CB02 Change of applicant information