CN206192359U - Laser scale subassembly - Google Patents
Laser scale subassembly Download PDFInfo
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- CN206192359U CN206192359U CN201621282470.2U CN201621282470U CN206192359U CN 206192359 U CN206192359 U CN 206192359U CN 201621282470 U CN201621282470 U CN 201621282470U CN 206192359 U CN206192359 U CN 206192359U
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- 230000005484 gravity Effects 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a laser scale subassembly, go out the first laser instrument of a lofting lasing area, the second laser instrument that the projectile goes out a signal lasing area including the projectile, the laying -out lasing area throws and obtain level laying -out datum line on target plane, when the level is personally submitted to signal laser with this level laying -out datum line not at same height, still include the pivot of level setting, second laser instrument and this pivot normal running fit, the signal lasing area throws out a straight line on target plane, the second laser instrument is followed during the rotation of pivot the straight line is in target plane is last to reciprocate, works as rectilinear movement arrives during level laying -out datum line, if the straight line is coincident completely with this level laying -out datum line, then drive the second laser instrument winds the pivot is rotated, arbitrary high acquisition that can be on target plane with the parallel straight line of level laying -out datum line.
Description
Technical field
The utility model is related to laser measuring equipment technical field, particularly a kind of Laser Line Marker component.
Background technology
When building decoration construction, door and window or equipment are installed, levelling, setting-out and measurement need to spend your substantial amounts of time and
Energy, frame for line marking instrument brings conveniently to levelling, setting-out and measurement etc., Laser Line Marker by the use of semiconductor laser as light source,
A laser rays for high brightness is formed on target metope by expanding.
The main frame of existing multi-line laser leveling instrument includes：Vertical laser seat and short transverse be located at vertical laser
The horizontal laser of seat middle part side（For exporting a horizontal setting-out datum line, i.e.,：Can be formed on objective plane W
One horizontal line）, four groups of vertical lasers that can launch vertical line, neighboring vertical line are evenly equipped with the top of vertical laser seat
Between angle be 90 °（For exporting four perpendicular quadrature lines).
The B of Chinese patent literature CN 101713653 disclose a kind of automatic centering system for line marker, and it includes：Electronic rotation
Turn pedestal, light centering instrument and the frame for line marking instrument being placed on electrical rotating pedestal；The center line line of induction of light centering instrument makes
Used time is placed in target line；The laser rays that light centering instrument is suitable to be sent in frame for line marking instrument is introduced into the photographic department of light centering instrument
When, control electrical rotating pedestal drives frame for line marking instrument to be rotated with very fast rotating speed, until the laser rays enters the sense of light centering instrument
During light portion, control electrical rotating pedestal rotates with compared with low-rotate speed, to finely tune the direction of frame for line marking instrument, until the laser rays reaches light
During the center line line of induction of line centering instrument, stop electrical rotating pedestal, so as to realize the purpose of accurate automatic centering.
Above-mentioned frame for line marking instrument of the prior art is disadvantageous in that：As shown in figure 1, for will be in the subscript of objective plane 1
Go out a plurality of straight line 3 parallel about 2 with horizontal setting-out datum line（Practical application is such as：When indoor decoration is carried out, for marking window
Frame it is upper following, wherein window frame is preset as horizontal setting-out datum line below）, currently existing scheme is that Laser Line Marker is located at into one
On tripod, as shown in Fig. 2 when the setting-out lasing area 4 of a holding level intersects with objective plane 1, just in objective plane 1
On project horizontal setting-out datum line 2, the connecting rod on hand-operated lifting tripod lifts frame for line marking instrument, and then on objective plane 1
The straight line parallel with horizontal setting-out datum line 2 is marked, the operation of the program is, it is necessary to two people's cooperations, waste time and energy；Additionally, existing
The precision of straight line 3 for having scheme to mark is often relatively low, i.e., the depth of parallelism often with horizontal setting-out datum line 2 is not high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of frame for line marking instrument component that can easily be accommodated.
In order to solve the above technical problems, the Laser Line Marker component that the utility model is provided, including：A setting-out can be launched
The first laser device of lasing area, the second laser that can launch a signal laser face, the setting-out lasing area are incident upon target
A horizontal setting-out datum line is obtained in plane；With the horizontal setting-out datum line not in sustained height when signal laser face is in level；
Also include a horizontally disposed rotating shaft, the second laser coordinates with the axis of rotation, and the signal laser face is flat in target
Project line always on face, the second laser with the rotating shaft rotation when the straight line on the objective plane up and down
It is mobile, when it is described be moved straightly to the horizontal setting-out datum line when, if straight line is completely superposed with the horizontal setting-out datum line,
The second laser is driven around the axis of rotation, you can the arbitrary height on objective plane is obtained and the horizontal setting-out
The parallel straight line of datum line.
Further, Laser Line Marker also includes the rotating disk that electrical rotating pedestal and the electrical rotating pedestal are rotatably assorted, should
Support is set on rotating disk, is hung on the support and gravity automatic leveling mechanism is set, the first laser device is fixedly installed on described
In gravity automatic leveling mechanism, to ensure that the setting-out lasing area that the first laser device is launched can keep level.
Further, Laser Line Marker also includes the first swing arm, the first driving machine for driving first swing arm to rotate
Structure, the second laser is fixedly linked with first swing arm, and one end of first swing arm coordinates with the axis of rotation, should
The opposite other end of the first swing arm is engaged with the first drive mechanism, so that first drive mechanism drives first swing arm
During around the axis of rotation, the straight line that the signal laser face of second laser output is formed on objective plane can on move down
It is dynamic.
Further, first drive mechanism includes the first motor, the first screw mandrel, the first feed screw nut, first gear, institute
The bottom for stating the first screw mandrel is fixedly and coaxially connected the first gear, and the output shaft of first motor is fixedly connected the first output
Gear, first output gear is meshed with the first gear, so that first motor can drive first screw mandrel to revolve
Turn；First feed screw nut is meshed with first screw mandrel, and first feed screw nut is fixedly installed driving lever, described first
The end of swing arm sets the inner fovea part for being suitable to the driving lever insertion, during so that first screw mandrel being rotated, the first feed screw nut edge
The first screw mandrel movement, driving lever drives the first swing arm around the axis of rotation.
Further, whether Laser Line Marker is also included for determining the horizontal horizon sensor of the rotating shaft, the level
Sensor is set on a mounting board with the rotating shaft；Also include the second rotating shaft, the second swing arm, the second drive mechanism, the installation
One end of plate is fixedly linked with second swing arm, and one end of second swing arm coordinates with second axis of rotation, and this second
The opposite other end of swing arm is engaged with the second drive mechanism, so that second drive mechanism drives second swing arm around institute
When stating the second axis of rotation, the adjustable horizontal level for being arranged on rotating shaft and horizon sensor on the installing plate.
Further, second drive mechanism includes the second motor, the second screw mandrel, the second feed screw nut, second gear, institute
The bottom for stating the second screw mandrel is fixedly and coaxially connected the second gear, and the output shaft of second motor is fixedly connected the second output
Gear, second output gear is meshed with the second gear, so that second motor can drive second screw mandrel to revolve
Turn；Second feed screw nut is meshed with second screw mandrel, and second feed screw nut is fixedly installed driving lever, described second
The end of swing arm sets the inner fovea part for being suitable to the driving lever insertion, during so that second screw mandrel being rotated, the second feed screw nut edge
The second screw mandrel movement, driving lever drives the second swing arm around second axis of rotation, to adjust the rotating shaft and horizontal sensor
The horizontal level of device.
Further, the top of the support sets top board, and the top of the gravity automatic leveling mechanism is through cross pivot
It is engaged with the bearing block for being arranged on top board lower surface, so that the gravity automatic leveling mechanism can be in the lower section of the top board certainly
It is so sagging.
Further, second rotating shaft is arranged on the top board through rotating shaft mounting seat, so that the electrical rotating pedestal
When driving the rotating disk to rotate, the support, top board, installing plate, the second rotating shaft, rotating shaft can be driven to rotate.
The technique effect of utility model：（1）Laser Line Marker of the present utility model, second laser is matched somebody with somebody with the axis of rotation
Close, it is easy to adjust relative to prior art；Additionally, by setting the rotating shaft simultaneously parallel with objective plane, horizontal plane so that
The straight line that the signal laser face of second laser output is formed on objective plane is parallel with horizontal setting-out datum line, is derived from
Straight line parallel degree it is higher；（2）Coordinated by electrical rotating pedestal and rotating disk, easily countershaft can be adjusted, so as to turn
Axle is parallel with objective plane；（3）Use level sensor can the level condition of countershaft carry out monitor in real time, to ensure that second swashs
The straight line of light device output is parallel with horizontal setting-out datum line；（4）First laser device is arranged in gravity automatic leveling mechanism, can be with
Ensure the lasing area holding level of first laser device output.
Brief description of the drawings
The utility model is described in further detail with reference to Figure of description：
Fig. 1 is objective plane, horizontal setting-out datum line, the position relationship schematic diagram of straight line in the utility model；
Fig. 2 is the position relationship schematic diagram of setting-out lasing area and objective plane in the utility model；
Fig. 3 is that the straight line that is formed on objective plane of second laser of Laser Line Marker of the present utility model is put with level
Schematic diagram when sample datum line is non-intersect；
Fig. 4 is that the straight line that is formed on objective plane of second laser of Laser Line Marker of the present utility model is put with level
Schematic diagram when sample datum line overlaps；
Fig. 5 is that the straight line that is formed on objective plane of second laser of Laser Line Marker of the present utility model is put with level
Schematic diagram when sample datum line is misaligned；
Fig. 6 is that the second laser of Laser Line Marker of the present utility model is formed and horizontal setting-out benchmark on objective plane
The schematic diagram of the parallel straight line of line；
Fig. 7 is the dimensional structure diagram of Laser Line Marker of the present utility model；
The assembling schematic diagram of Fig. 8 the first driving structures of the present utility model and second laser；
Fig. 9 is the assembling schematic diagram of the second driving structure of the present utility model and installing plate；
Figure 10 is the assembling schematic diagram of gravity automatic leveling mechanism of the present utility model and cross pivot.
In figure：Objective plane 1, horizontal setting-out datum line 2, straight line 3, setting-out lasing area 4, signal laser face 5, electronic rotation
Pedestal 10, rotating disk 11, first laser device 20, gravity automatic leveling mechanism 21, support 22, top board 23, cross pivot 24, bearing
Seat 25, second laser 30, rotating shaft 31, the first swing arm 32, horizon sensor 33, the second rotating shaft 34, the second swing arm 35, installing plate
36, rotating shaft mounting seat 37, the first motor 61, first gear 62, the first screw mandrel 63, the first feed screw nut 64, the first guide pad 65,
Stull 66, the first output gear 67, second gear 72, the second screw mandrel 73, the second feed screw nut 74, the second output gear 77.
Specific embodiment
Embodiment 1
The Laser Line Marker of the present embodiment, including electrical rotating pedestal 10 and the electrical rotating pedestal 10 are rotatably assorted
Rotating disk 11, as shown in fig. 7, setting support 22 on the rotating disk 11, hangs on the support 22 and sets gravity automatic leveling mechanism 21, weight
First laser device 20 is fixedly installed in power self leveling mechanism 21, the top of support 22 sets top board 23, as shown in Figure 10, weight
The top of power self leveling mechanism 21 is engaged through cross pivot 24 with the bearing block 25 for being arranged on the lower surface of top board 23, so that
Gravity automatic leveling mechanism 21 can be in the lower section of top board 23 and naturally droop state, to ensure what first laser device 20 was launched
Lasing area keeps level.
Laser Line Marker also includes the first swing arm 32, the first drive mechanism for driving the first swing arm 32 to rotate, second
Laser 30 is fixedly linked with the first swing arm 32, so that second laser 30 is arranged on different height with first laser device 20；
One end of first swing arm 30 is rotatably assorted with rotating shaft 31, and the rotating shaft 31 is arranged on installing plate 36 through rotating shaft mounting seat 37, should
The opposite other end of the first swing arm 32 is engaged with the first drive mechanism, as shown in figure 8, the first drive mechanism includes the first motor
61st, the first screw mandrel 63, the first feed screw nut 64, first gear 62, the bottom of the first screw mandrel 63 is fixedly and coaxially connected first gear
62, the output shaft of the first motor 61 is fixedly connected the first output gear 67, and first output gear 67 is mutually nibbled with first gear 62
Close, so that the first motor 61 can drive the first screw mandrel 63 to rotate；First screw mandrel 63 is set through installing plate 36, the first motor 61,
First gear 62 is arranged on the lower section of installing plate 36, and the first guide pad 65 is additionally provided with the lower section of installing plate 36, the first screw mandrel 63,
First screw mandrel 63 sets through the first guide pad 65 and coordinates with the screw thread of the first guide pad 65, edge and the peace of the first guide pad 65
The side wall for filling plate 36 is fixedly linked, and is oriented to the first screw mandrel 63, prevents the first screw mandrel 63 crooked；It is arranged on installing plate 36
First feed screw nut 64 of top is meshed with the first screw mandrel 63, and driving lever, the first swing arm are fixedly installed on the first feed screw nut 64
32 end sets two stulls 66, is formed between two stulls 66 and is suitable to the inner fovea part of driving lever insertion, so that 63 turns of the first screw mandrel
When dynamic, the first feed screw nut 64 moves along the first screw mandrel 63, and driving lever drives the first swing arm 32 31 to rotate around the shaft.
Whether Laser Line Marker is also included for determining the horizontal horizon sensor 33 of rotating shaft（Also can be carried out using bubble instrument
Level judges）, horizon sensor 33 and rotating shaft 31 are arranged on installing plate 36；Also include the second rotating shaft 34, the second swing arm 35, the
Two drive mechanisms, the second rotating shaft 34 is arranged on top board 23 through rotating shaft mounting seat 37, one end of installing plate 36 and the second swing arm 35
It is fixedly linked, one end of second swing arm 35 is rotatably assorted with the second rotating shaft 34, the opposite other end of second swing arm 35 and the
Two drive mechanisms are engaged, as shown in figure 9, the second drive mechanism includes the second motor, the second screw mandrel 73, the second feed screw nut
74th, second gear, the bottom of the second screw mandrel 73 is fixedly and coaxially connected second gear, and the output shaft of the second motor is fixedly connected second
Output gear 77, second output gear 77 is meshed with second gear 72, so that the second motor can drive the second screw mandrel 73 to revolve
Turn；Second feed screw nut 74 is meshed with the second screw mandrel 73, and the second feed screw nut 74 is fixedly installed driving lever, the end of the second swing arm 35
Portion sets two stulls 66, is formed between two stulls 66 and is suitable to the inner fovea part of driving lever insertion, during so that the second screw mandrel 73 being rotated, the
Two feed screw nuts 74 move along the second screw mandrel 73, and driving lever drives the second swing arm 35 to be rotated around the second rotating shaft 34, to adjust rotating shaft 31
With the horizontal level of horizon sensor 33.
The setting-out lasing area 4 of the output of first laser device 20 of above-mentioned Laser Line Marker obtains a level on objective plane 1
Setting-out datum line 2；Straight line 3 and the axle of rotating shaft 31 that the signal laser face 5 of the output of second laser 30 obtains on objective plane 1
Line is be arranged in parallel, and the straight line 3 is moved with the rotation of rotating shaft 31 on objective plane 1, and the rotating shaft 31 is adjusted to the axis of rotating shaft 31
When being be arranged in parallel with objective plane 1, weighed completely with the horizontal setting-out datum line 2 when the straight line 3 moves to horizontal setting-out datum line 2
Close, drive second laser 30 31 to rotate around the shaft, you can arbitrary height is obtained and horizontal setting-out datum line on objective plane 1
2 parallel straight lines 3.
Embodiment 2
The method of work of above-mentioned Laser Line Marker, as shown in Figures 4 to 6, comprises the following steps：
A, Laser Line Marker is placed on objective plane 1 to be onstructed before so that the setting-out that first laser device 20 is launched
The signal laser face 5 that lasing area 4, second laser 30 are launched is projected on objective plane 1；Gravity automatic leveling mechanism 21 receives
Action of Gravity Field is in and naturally droops state, so that the holding level of setting-out lasing area 4 that first laser device 20 is launched, the setting-out swashs
Smooth surface 4 forms horizontal setting-out datum line 2 with the intersection of objective plane 1.
B, the second motor of startup, drive the second screw mandrel 73 to rotate so that the second swing arm 35 rotates around the second rotating shaft 34, adjustment
Installing plate 36 to the display of horizon sensor 33 is in horizontality, and the second motor is stopped so that rotating shaft 31 is in horizontal
State.
C, the first motor 61 of startup, drive the first screw mandrel 63 to rotate so that the first swing arm 32 31 rotation around the shaft, so that the
The straight line 3 that the signal laser face 5 of the output of dual-laser device 30 is formed on objective plane 1 carries out slow up and down along objective plane 1
It is mobile, when the straight line 3 intersects with horizontal setting-out datum line 2, if the straight line 3 not exclusively overlaps with horizontal setting-out datum line 2, now
Rotating shaft 31 is not parallel with objective plane 1, start the driving rotating disk 11 of electrical rotating pedestal 10 rotate, with adjust rotating shaft 31 with level
Rotation in the parallel plane in face, until the straight line 3 that the signal laser face 5 of the output of second laser 30 is formed on objective plane 1
It is completely superposed with horizontal setting-out datum line 2, now rotating shaft 31 is parallel with objective plane 1；Rotating disk 11 stops operating, and starts the first electricity
Machine 61, to drive the first screw mandrel 63 to rotate so that the first swing arm 32 31 rotation around the shaft, so that the letter of the output of second laser 30
Number lasing area 5 obtains the straight line 3 parallel with horizontal setting-out datum line 2 on the arbitrary height of objective plane 1.
In step C, the second motor is controlled according to the state that horizon sensor 33 shows, it is to avoid second laser
30 deviate in rotation process, are adjusted by the second motor, it is ensured that rotating shaft 31 is in horizontality all the time.
Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality
With the restriction of new implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And these
Belong to obvious change or change still in protection domain of the present utility model that spirit of the present utility model extends out
Among.
Claims (7)
1. a kind of Laser Line Marker component, it is characterised in that including：A setting-out lasing area can be launched（4）First laser device
（20）, a signal laser face can be launched（5）Second laser（30）；
Also include a horizontally disposed rotating shaft（31）, the second laser（30）With the rotating shaft（31）It is rotatably assorted；
Also include electrical rotating pedestal（10）With the electrical rotating pedestal（10）The rotating disk being rotatably assorted（11）, the rotating disk（11）
Upper setting support（22）, the support（22）Upper suspension sets gravity automatic leveling mechanism（21）, the first laser device（20）Gu
Surely it is arranged on the gravity automatic leveling mechanism（21）On.
2. Laser Line Marker component according to claim 1, it is characterised in that also including the first swing arm（32）, for driving
Move first swing arm（32）The first drive mechanism for rotating, the second laser（30）With first swing arm（32）It is fixed
It is connected, first swing arm（32）One end and the rotating shaft（31）It is rotatably assorted, first swing arm（32）Opposite other end with
First drive mechanism is engaged, so that first drive mechanism drives first swing arm（32）Around the rotating shaft（31）Rotate
When, the second laser（30）The signal laser face of output（5）In objective plane（1）The straight line of upper formation（3）Can on move down
It is dynamic.
3. Laser Line Marker component according to claim 2, it is characterised in that first drive mechanism includes the first electricity
Machine（61）, the first screw mandrel（63）, the first feed screw nut（64）, first gear（62）, first screw mandrel（63）Bottom it is coaxial
It is fixedly connected the first gear（62）, first motor（61）Output shaft be fixedly connected the first output gear（67）, should
First output gear（67）With the first gear（62）It is meshed, so that first motor（61）Described first can be driven
Bar（63）Rotation；First feed screw nut（64）With first screw mandrel（63）It is meshed, first feed screw nut（64）
Driving lever, first swing arm is fixedly installed（32）End the inner fovea part for being suitable to driving lever insertion is set so that described first
Screw mandrel（63）During rotation, the first feed screw nut（64）Along first screw mandrel（63）Mobile, driving lever drives the first swing arm（32）Around
The rotating shaft（31）Rotate.
4. Laser Line Marker component according to claim 3, it is characterised in that also including horizon sensor（33）, second
Rotating shaft（34）, the second swing arm（35）, the second drive mechanism, the horizon sensor（33）With the rotating shaft（31）It is arranged on installation
Plate（36）On；The installing plate（36）One end and second swing arm（35）It is fixedly linked, second swing arm（35）One end
With second rotating shaft（34）It is rotatably assorted, second swing arm（35）Opposite other end be engaged with the second drive mechanism, with
Second drive mechanism is set to drive second swing arm（35）Around second rotating shaft（34）It is adjustable to be arranged on institute during rotation
State installing plate（36）On rotating shaft（31）And horizon sensor（33）Horizontal level.
5. Laser Line Marker component according to claim 4, it is characterised in that second drive mechanism includes the second electricity
Machine, the second screw mandrel（73）, the second feed screw nut（74）, second gear（72）, second screw mandrel（73）Bottom coaxially fix
Connect the second gear（72）, the output shaft of second motor is fixedly connected the second output gear（77）, second output
Gear（77）With the second gear（72）It is meshed, so that second motor can drive second screw mandrel（73）Rotation；
Second feed screw nut（74）With second screw mandrel（73）It is meshed, second feed screw nut（74）It is fixedly installed and dials
Bar, second swing arm（35）End the inner fovea part for being suitable to driving lever insertion is set so that second screw mandrel（73）Turn
When dynamic, the second feed screw nut（74）Along second screw mandrel（73）Mobile, driving lever drives the second swing arm（35）Around described second turn
Axle（34）Rotate.
6. Laser Line Marker component according to claim 5, it is characterised in that the support（22）Top set top board
（23）, the gravity automatic leveling mechanism（21）Top through cross pivot（24）Be arranged on top board（23）The axle of lower surface
Bearing（25）It is engaged.
7. Laser Line Marker component according to claim 6, it is characterised in that second rotating shaft（34）Installed through rotating shaft
Seat（37）It is arranged on the top board（23）On, so that the electrical rotating pedestal（10）Drive the rotating disk（11）During rotation, can
Drive the support（22）, top board（23）, installing plate（36）, the second rotating shaft（34）, rotating shaft（31）Rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621282470.2U CN206192359U (en) | 2016-11-26 | 2016-11-26 | Laser scale subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621282470.2U CN206192359U (en) | 2016-11-26 | 2016-11-26 | Laser scale subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192359U true CN206192359U (en) | 2017-05-24 |
Family
ID=58724025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621282470.2U Active CN206192359U (en) | 2016-11-26 | 2016-11-26 | Laser scale subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857175A (en) * | 2021-01-19 | 2021-05-28 | 南通水木清华装饰设计工程有限公司 | Indoor decoration construction measurement lofting equipment and method thereof |
-
2016
- 2016-11-26 CN CN201621282470.2U patent/CN206192359U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857175A (en) * | 2021-01-19 | 2021-05-28 | 南通水木清华装饰设计工程有限公司 | Indoor decoration construction measurement lofting equipment and method thereof |
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