CN110530246A - A kind of tester for level degree of wall surface device - Google Patents
A kind of tester for level degree of wall surface device Download PDFInfo
- Publication number
- CN110530246A CN110530246A CN201910848722.5A CN201910848722A CN110530246A CN 110530246 A CN110530246 A CN 110530246A CN 201910848722 A CN201910848722 A CN 201910848722A CN 110530246 A CN110530246 A CN 110530246A
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- Prior art keywords
- main scale
- sliding
- clearance gauge
- block
- sliding block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to a kind of tester for level degree of wall surface devices, including guiding ruler and detection piece, the guiding ruler includes main scale and the spreading ruler being detachably connected with main scale, for the detection piece between the length both ends for being slidably connected to main scale on the one side of main scale, the side that the main scale is connected with detection piece is provided with the first actuator of driving detection piece；The detection piece includes sliding block and clearance gauge, and the sliding block and main scale are sliding, and the sharp one end of the clearance gauge is towards main scale and clearance gauge is slidably connected with sliding block, and driving clearance gauge is provided on the sliding block close to or far from the second actuator of main scale；Camera is provided on the detection piece, the main scale is provided with display screen close to spreading ruler one end, and the camera and display screen couple.The present invention has the effect of more easily carrying out flatness detection to eminence metope.
Description
Technical field
The present invention relates to building detection technique fields, more particularly, to a kind of tester for level degree of wall surface device.
Background technique
Currently, the flatness of metope mainly utilizes guiding ruler and clearance gauge to cooperate, guiding ruler is whole in a rectangular parallelepiped shape, section square
Shape, clearance gauge is wedge shaped, and for filling between guiding ruler and metope, specific detecting step is as follows for sharp one end of clearance gauge:
1, guiding ruler is relied on and is closely attached on metope；
2, the sharp one end of clearance gauge is filled in the gap between guiding ruler and metope；
3, the reading on wedge-shaped feeler gauge is observed.
During being detected using flatness of the prior art to metope, the metope height that if desired detects compared with
Height then needs to ascend a height by ladder.During detecting other positions eminence metope, then need to carry ladder.Cause
This, is more troublesome using the process that degree of plainness for wall surface of the prior art to eminence is detected.
Summary of the invention
In view of the deficienciess of the prior art, the invention reside in a kind of tester for level degree of wall surface device is provided, advantage exists
In can more easily to multiple eminence metopes carry out flatness detection.
Technical purpose of the invention has the technical scheme that a kind of tester for level degree of wall surface device,
Including guiding ruler and detection piece, the guiding ruler includes main scale and the spreading ruler being detachably connected with main scale, the detection piece in
It is slidably connected on the one side of main scale between the length both ends of main scale, the side that the main scale is connected with detection piece is provided with drive
First actuator of dynamic detection piece；The detection piece includes sliding block and clearance gauge, and the sliding block and main scale are sliding, and the clearance gauge is sharp
One end is towards main scale and clearance gauge is slidably connected with sliding block, driving clearance gauge is provided on the sliding block close to or far from the of main scale
Two actuators；Camera is provided on the detection piece, the main scale is provided with display screen, the camera shooting close to spreading ruler one end
Head is coupled with display screen.
It is high needing to detect because main scale and spreading ruler are detachably connected by using above-mentioned technical proposal
It when spending the flatness of lower metope, can directly be relied on metope using main scale or spreading ruler, then cooperate clearance gauge to wall
It is detected in face；
When needing the flatness to the metope of eminence to detect, spreading ruler is connect to obtain highly longer lean on main scale
Ruler.In the detection process, guiding ruler is relied on metope, main scale is located at upper end at this time, and spreading ruler is located at lower end.Then pass through
First actuator drives slide block movement and then drives clearance gauge movement.After guiding ruler moves to set goal position, driven by second
Moving part drives clearance gauge close to main scale, and the sharp one end of clearance gauge is filled between main scale and metope to be detected.Because
It is provided with camera on detection piece, the position that camera is contacted with main scale towards clearance gauge simultaneously shoots the position, by taking the photograph
The picture transmission shot as head is to being located on a lower height of display screen, to allow operator can be from display screen directly
Observation obtains the reading of clearance gauge Yu main scale contact position.
To sum up, it only needs to connect main scale by spreading ruler in the detection process, then passes through control the first actuator, second
Actuator can carry out flatness detection to the metope of higher position, without facilitating to multiple high by tools such as ladders
Locate the detection of metope.
The present invention is further arranged to: first sliding groove, the first sliding groove edge are provided in the one side of the main scale thickness
The length direction setting of main scale, rotating bar is provided in the first sliding groove, the rotating bar includes coaxial arrangement spiro rod section
And worm screw section, the sliding block slip in first sliding groove, the spiro rod section is passed through and is spirally connected with sliding block, the first sliding groove
In be provided with and be connected with the power source of stretching mounting groove with the turbine that engage of worm screw section, the turbine.
By using above-mentioned technical proposal, when needing clearance gauge mobile, driven by power source drive turbine rotation
Worm screw section rotation, during worm screw section rotates, spiro rod section follows worm screw section rotation, to drive sliding block along first sliding groove
Movement, it is final to drive clearance gauge movement.
The present invention is further arranged to: the sliding block is in a rectangular parallelepiped shape and the length direction of sliding block is vertical with main scale, institute
It states sliding block one end to protrude into first sliding groove, the other end is located at outside first sliding groove, and one end that the sliding block is located at outside first sliding groove is set
It is equipped with second sliding slot, the second sliding slot is arranged along length direction, slidably connects drive block in the second sliding slot, institute
It states drive block both ends and stretches out second sliding slot, be provided with driving motor on sliding block, the output shaft of driving motor is connected with drive rod, institute
State that drive rod is vertical with main scale, one end of the drive block is provided with elastic telescopic part, and drive block passes through elastic telescopic part
It is connect with clearance gauge, the other end and the drive rod of drive block are spirally connected.
By using above-mentioned technical proposal, when needing for clearance gauge to be tucked between main scale and metope, driven by starting
Motor drives drive rod rotation, and during drive rod active, drive block can not be rotated and edge by the limit of second sliding slot
Second sliding slot movement so that clearance gauge can be filled in by driving between main scale and metope.Because drive block is to pass through bullet
Property extensible member connect with clearance gauge, therefore the clearance gauge property of can adapt to is adjacent to metope under the action of elastic telescopic part, to make
Obtaining clearance gauge can accurately enter between main scale and metope.
The present invention is further arranged to: being provided with one of limit on the two sides inner wall of the second sliding slot along its length
Position slot, is provided with the limited block for protruding into limiting slot on the drive block.
By using above-mentioned technical proposal, the cooperation of limited block and limiting slot enable drive block more stable along
Second sliding slot sliding.
The present invention is further arranged to: the elastic telescopic part includes that the telescopic chute being provided on drive block and setting exist
Telescopic rod on clearance gauge, the open end of the telescopic chute are provided with a circle stop collar, and one end of the telescopic rod passes through stop collar
It stretches in telescopic chute, one end that the telescopic rod is located in telescopic chute is provided with limit film, the limit film and telescopic chute
Elastic component is provided between slot bottom, the other end and the clearance gauge of the telescopic rod are detachably connected.
By using above-mentioned technical proposal, limit film can not be by stop collar, so that one end of telescopic rod can begin
Final position is in telescopic chute.Elastic component is set flexible between trench bottom and limit film, under the action of the elastic member, is leaned on by guiding ruler
When on metope, telescopic rod be can adapt to flexible so that clearance gauge can adapt to the metope of out-of-flatness always and and metope
Fitting.It, can be by clearance gauge and spreading ruler when measuring a lower height of metope because clearance gauge is detachably connected with telescopic rod
Disassembly is independent to be used.
The present invention is further arranged to: the first interface is provided on the clearance gauge, one end of the telescopic rod stretches to
It is provided with the first screw hole being connected to the first plug receptacle in first interface, on clearance gauge, is provided on the telescopic rod and first
Corresponding first intercommunicating pore of screw hole is bolted with the first locking bolt for protruding into the first intercommunicating pore in first screw hole.
By using above-mentioned technical proposal, telescopic rod is inserted into interface, then by the first locking bolt and first
Screw hole is spirally connected and penetrates the first intercommunicating pore, can be realized and connect telescopic rod with clearance gauge, otherwise realizes that telescopic rod is torn open with clearance gauge
It unloads.
The present invention is further arranged to: it is provided with the second plug receptacle on one end end face that the main scale is connect with spreading ruler,
It is provided with the block that patches for protruding into the second plug receptacle on the end face of the spreading ruler, is provided on the main scale and connects with the second plug receptacle
The second logical screw hole, described patch are provided with the second intercommunicating pore corresponding with the second screw hole, are spirally connected in second screw hole on block
There is the second locking bolt for protruding into the second intercommunicating pore.
By using above-mentioned technical proposal, block will be patched and be inserted into the second plug receptacle, then by the second locking bolt with
Second screw hole is spirally connected and penetrates the second intercommunicating pore, can be realized the connection of main scale and spreading ruler, otherwise realizes main scale and connect
The disassembly of long ruler.
The present invention is further arranged to: the drive rod is provided with baffle on the end face far from one end of output motor.
By using above-mentioned technical proposal, the setting of baffle avoids drive block and drive rod from being detached from.
In conclusion the invention has the following advantages:
1, it only needs to connect main scale by spreading ruler in the detection process, then passes through control the first actuator, the second actuator
Flatness detection can be carried out to the metope of higher position, without facilitating the inspection to eminence metope by tools such as ladders
It surveys；
It 2,, can be by clearance gauge and spreading when measuring a lower height of metope because clearance gauge and telescopic rod are detachably connected
Ruler disassembly is independent to be used.
Detailed description of the invention
Fig. 1 is overall structure structural schematic diagram of the invention；
Fig. 2 is main scale of the invention and patches ruler attachment structure schematic diagram；
Fig. 3 is the structural schematic diagram of the first actuator of the invention；
Fig. 4 is the structural schematic diagram of the second actuator and detection piece of the invention；
Fig. 5 is the schematic cross-sectional view in Fig. 4 at A-A.
Appended drawing reference: 1, guiding ruler；2, detection piece；3, main scale；4, spreading ruler；5, the first actuator；6, sliding block；7, clearance gauge；
8, the second actuator；9, camera；10, display screen；11, the second plug receptacle；12, block is patched；13, the second screw hole；14, second connects
Through-hole；15, the second locking bolt；16, first sliding groove；17, rotating bar；18, spiro rod section；19, worm screw section；20, turbine；21, it moves
Power source；22, driving motor；23, drive rod；24, elastic telescopic part；25, limiting slot；26, limited block；27, block；28, it stretches
Bar；29, stop collar；30, limit film；31, elastic component；32, the first interface；33, the first screw hole；34, the first intercommunicating pore；35,
Second sliding slot；36, drive block；37, telescopic chute；38, the first locking bolt.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, for a kind of tester for level degree of wall surface device disclosed by the invention, including guiding ruler 1 and detection piece 2,
Guiding ruler 1 is slidably connected including main scale 3 and the spreading ruler 4 being detachably connected with main scale 3, detection piece 2 on the one side of main scale 3
Between the length both ends of main scale 3.
As shown in Figure 1,3, the side that main scale 3 is connected with detection piece 2 is provided with the first actuator 5 of driving detection piece 2；Inspection
Surveying part 2 includes sliding block 6 and clearance gauge 7, and sliding block 6 and main scale 3 are sliding, and the sharp one end of clearance gauge 7 is towards main scale 3 and clearance gauge 7 and sliding block 6
It is slidably connected, driving clearance gauge 7 is provided on main scale 3 and sliding block 6 close to or far from the second actuator 8(of main scale 3 referring to figure
4)；Camera 9 is provided on detection piece 2, main scale 3 is provided with display screen 10, camera 9 and display screen close to 4 one end of spreading ruler
10 couplings.
As shown in Figure 1, 2, the second plug receptacle 11, spreading ruler 4 are provided on one end end face that main scale 3 is connect with spreading ruler 4
End face on be provided with protrude into the second plug receptacle 11 patch block 12, be connected to the second plug receptacle 11 is provided on main scale 3
Two screw holes 13 patch and are provided with second intercommunicating pore 14 corresponding with the second screw hole 13 on block 12, are bolted with and stretch in the second screw hole 13
Enter the second locking bolt 15 of the second intercommunicating pore 14.
Block 12 will be patched to be inserted into the second plug receptacle 11, then the second locking bolt 15 is spirally connected and is worn with the second screw hole 13
Enter the second intercommunicating pore 14, can be realized the connection of main scale 3 and spreading ruler 4, otherwise realizes the disassembly of main scale 3 and spreading ruler 4.In
When measuring lower metope, spreading ruler 4 can be dismantled be independently operated, and when needing to measure higher metope just by spreading ruler 4
Use is connect with main scale 3.
As shown in Figure 3,4, the section of main scale 3 and spreading ruler 4 is rectangle, is offered in the one side of 3 thickness of main scale
In the first sliding groove 16 of square groove shape.First sliding groove 16 is arranged along the length direction of main scale 3, but first sliding groove 16 is shorter than main scale 3
Length.First actuator 5 includes the rotating bar 17 being arranged in first sliding groove 16, and rotating bar 17 includes coaxial arrangement spiro rod section
18 and worm screw section 19, and the length both ends inner wall of the both ends of rotating bar 17 and first sliding groove 16 is rotatablely connected.Sliding block 6 is in length
Cube shape and one end are slipped in first sliding groove 16, and spiro rod section 18 is passed through and is spirally connected with sliding block 6, are arranged in first sliding groove 16
There is the turbine 20 engaged with worm screw section 19, turbine 20 is coaxially connected with the power source 21 for stretching out mounting groove by rod piece.Power source
21 be hand-operated wheel, and hand-operated wheel is arranged in one side of the main scale 3 relative to first sliding groove 16.
Drive the rotation of turbine 20 that worm screw section 19 is driven to rotate by power source 21, in the process of 19 rotation of worm screw section
In, spiro rod section 18 follows worm screw section 19 to rotate, so that sliding block 6 is driven to move along first sliding groove 16, it is final that clearance gauge 7 is driven to move
To target position.
As shown in figure 4, the length direction of sliding block 6 is vertical with main scale 3,6 one end of sliding block is protruded into first sliding groove 16, the other end
Outside first sliding groove 16.Sliding block 6 slips along its length drive block 36, and the setting of the second actuator 8 is used on sliding block 6
Drive drive block 36.
Specifically, as shown in Figure 4,5, one end that sliding block 6 is located at outside first sliding groove 16 offers to be arranged along its length
Second sliding slot 35, second sliding slot 35 is located between the both ends of drive block 36, and drive block 36 slips in second sliding slot 35, and
Second sliding slot 35 is stretched out at 36 both ends of drive block.Second actuator 8 includes the driving motor 22 being mounted on sliding block 6, driving motor
22 output shaft is coaxially connected with the drive rod 23 vertical with main scale 3.One end of drive block 36 is provided with elastic telescopic part 24, and
And drive block 36 is connect by elastic telescopic part 24 with clearance gauge 7, the other end and the drive rod 23 of drive block 36 are spirally connected.
When drive rod 23 is driven and rotated by driving motor 22, drive block 36 can not be rotated by the limit of second sliding slot 35
And moved along second sliding slot 35, so that clearance gauge 7 can be filled in by driving between main scale 3 and metope.It is driven to allow
Block 36 more stable can be moved along second sliding slot 35, be opened up on the two sides inner wall of second sliding slot 35 along its length
There is one of limiting slot 25, and is formed with the limited block 26 for protruding into limiting slot 25 on drive block 36.
Drive rod 23 is fixed with to columned block 27, in the work of block 27 on the end face far from one end of output motor
Drive block 36 and drive rod 23 is avoided to be detached under.
Elastic telescopic part 24 includes the rectangular telescopic chute 37 being provided on drive block 36 and the square bar being arranged on clearance gauge 7
The telescopic rod 28 of shape, a circle stop collar 29 is fixed with inside the open end of telescopic chute 37, and one end of telescopic rod 28 passes through stop collar
29 stretch in telescopic chute 37, and one end that telescopic rod 28 is located in telescopic chute 37 is fixed with limit film 30, and limit film 30
Size be greater than in stop collar 29 ring size thus can not pass through stop collar 29.In addition, the slot bottom of limit film 30 and telescopic chute 37 it
Between be provided with elastic component 31, elastic component 31 is spring.
Therefore, under the action of elastic component 31, when leaning against guiding ruler 1 on metope, telescopic rod 28 be can adapt to flexible,
So that clearance gauge 7 can adapt to the metope of out-of-flatness always and be bonded with metope.
As shown in Figure 3,4, telescopic rod 28 is to be detachably connected with clearance gauge 7.Specifically, the first grafting is provided on clearance gauge 7
Mouth 32, one end of telescopic rod 28 stretches in the first interface 32, and first be connected to the first plug receptacle 32 is formed on clearance gauge 7
Screw hole 33 offers first intercommunicating pore 34 corresponding with the first screw hole 33 on telescopic rod 28, is bolted with and protrudes into the first screw hole 33
First locking bolt 38 of the first intercommunicating pore 34.
Block 12 will be patched to be inserted into the second plug receptacle 11, then the second locking bolt 15 and the second screw hole 13 will be spirally connected simultaneously
And the second intercommunicating pore 14 is penetrated, the connection of main scale 3 Yu spreading ruler 4 can be realized, otherwise realize the disassembly of main scale 3 and spreading ruler 4.
Therefore, when measuring a lower height of metope, operator can tear spreading ruler 4 with clearance gauge 7 open from main scale 3
It unloads, is then independently used cooperatively, to improve the applicable surface of this instrument.
The implementation principle of the present embodiment are as follows: because main scale 3 and spreading ruler 4 are detachably connected, and clearance gauge 7 is also removable
It unloads, therefore when needing to detect the flatness of a lower height of metope, can directly be relied on using main scale 3 or spreading ruler 4
On metope, the clearance gauge 7 under dismantling from main scale 3 is then cooperated to detect metope；
When needing the flatness to the metope of eminence to detect, spreading ruler 4 is connect to obtain highly longer lean on main scale 3
Ruler 1.In the detection process, guiding ruler 1 is relied on metope, main scale 3 is located at upper end at this time, and spreading ruler 4 is located at lower end.Then
Drive the movement of sliding block 6 that clearance gauge 7 is driven to move by the first actuator 5.After guiding ruler 1 moves to set goal position, lead to
It is close to main scale 3 to cross the second actuator 8 driving clearance gauge 7, and the sharp one end of clearance gauge 7 is filled in main scale 3 and wall to be detected
Between face.Because being provided with camera 9 on detection piece 2, position that camera 9 is contacted with main scale 3 towards clearance gauge 7 and to the position
It sets and is shot, the picture transmission shot by camera 9 is to being located on a lower height of display screen 10, to allow operator
Member can directly observation obtains the reading of clearance gauge 7 Yu 3 contact position of main scale from display screen 10.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of tester for level degree of wall surface device, it is characterized in that: including guiding ruler (1) and detection piece (2), guiding ruler (1) packet
The spreading ruler (4) for including main scale (3) and being detachably connected with main scale (3), the detection piece (2) is on the one side of main scale (3)
It is slidably connected between the length both ends of main scale (3), the side that the main scale (3) is connected with detection piece (2) is provided with driving inspection
Survey first actuator (5) of part (2)；The detection piece (2) includes sliding block (6) and clearance gauge (7), the sliding block (6) and main scale (3)
Sliding, the sharp one end of the clearance gauge (7) is towards main scale (3) and clearance gauge (7) is slidably connected with sliding block (6), on the sliding block (6)
Driving clearance gauge (7) is provided with close to or far from the second actuator (8) of main scale (3)；Camera is provided on the detection piece (2)
(9), the main scale (3) is provided with display screen (10) close to spreading ruler (4) one end, the camera (9) and display screen (10) coupling
It connects.
2. a kind of tester for level degree of wall surface device according to claim 1, it is characterized in that: the one of the main scale (3) thickness
It is provided on face first sliding groove (16), the first sliding groove (16) is arranged along the length direction of main scale (3), the first sliding groove
(16) it is provided in rotating bar (17), the rotating bar (17) includes coaxial arrangement spiro rod section (18) and worm screw section (19), institute
It states sliding block (6) to slip in first sliding groove (16), the spiro rod section (18) passes through and is spirally connected with sliding block (6), and described first is sliding
The turbine (20) engaged with worm screw section (19) is provided in slot (16), the turbine (20) is connected with the power source for stretching out mounting groove
(21)。
3. a kind of tester for level degree of wall surface device according to claim 2, it is characterized in that: the sliding block (6) is in cuboid
The length direction of shape and sliding block (6) is vertical with main scale (3), and described sliding block (6) one end is protruded into first sliding groove (16), the other end
Outside positioned at first sliding groove (16), the sliding block (6) is located at the one end of first sliding groove (16) outside and is provided with second sliding slot (35), described
Second sliding slot (35) is arranged along sliding block (6) length direction, slidably connects drive block (36) in the second sliding slot (35), described
Second sliding slot (35) are stretched out at drive block (36) both ends, are provided with driving motor (22) on sliding block (6), driving motor (22) connection
Output shaft is connected with drive rod (23), and the drive rod (23) is vertical with main scale (3), and one end of the drive block (36) is provided with
Elastic telescopic part (24), and drive block (36) is connect by elastic telescopic part (24) with clearance gauge (7), drive block (36) it is another
End is spirally connected with drive rod (23).
4. a kind of tester for level degree of wall surface device according to claim 3, it is characterized in that: the second sliding slot (35) is along it
It is provided on the two sides inner wall of length direction one of limiting slot (25), is provided on the drive block (36) and protrudes into limiting slot
(25) limited block (26).
5. a kind of tester for level degree of wall surface device according to claim 3, it is characterized in that: the elastic telescopic part (24) wraps
The telescopic rod (28) for including the telescopic chute (37) being provided on drive block (36) and being arranged on clearance gauge (7), the telescopic chute
(37) open end is provided with a circle stop collar (29), and one end of the telescopic rod (28) stretches to flexible across stop collar (29)
In slot (37), the telescopic rod (28) is located at one end in telescopic chute (37) and is provided with limit film (30), the limit film (30)
It is provided between the slot bottom of telescopic chute (37) elastic component (31), the other end of the telescopic rod (28) and clearance gauge (7) are detachable
Connection.
6. a kind of tester for level degree of wall surface device according to claim 5, it is characterized in that: being provided on the clearance gauge (7)
One end of first interface (32), the telescopic rod (28) stretches in the first interface (32), is provided on clearance gauge (7) and the
The first screw hole (33) of one interface (32) connection, is provided with corresponding with the first screw hole (33) first on the telescopic rod (28)
Intercommunicating pore (34) is bolted with the first locking bolt (38) for protruding into the first intercommunicating pore (34) in first screw hole (33).
7. a kind of tester for level degree of wall surface device according to claim 6, it is characterized in that: the main scale (3) and spreading ruler
(4) it is provided with the second plug receptacle (11) on one end end face connected, is provided on the end face of the spreading ruler (4) and protrudes into second and connect
Socket (11) patches block (12), and the second screw hole (13) being connected to the second plug receptacle (11), institute are provided on the main scale (3)
It states to patch and is provided with the second intercommunicating pore (14) corresponding with the second screw hole (13) on block (12), be spirally connected in second screw hole (13)
There is the second locking bolt (15) for protruding into the second intercommunicating pore (14).
8. a kind of tester for level degree of wall surface device according to claim 3, it is characterized in that: the drive rod (23) is far from defeated
It is provided on the end face of one end of motor out baffle (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848722.5A CN110530246B (en) | 2019-09-09 | 2019-09-09 | Wall surface flatness detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848722.5A CN110530246B (en) | 2019-09-09 | 2019-09-09 | Wall surface flatness detecting instrument |
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|---|---|
| CN110530246A true CN110530246A (en) | 2019-12-03 |
| CN110530246B CN110530246B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910848722.5A Active CN110530246B (en) | 2019-09-09 | 2019-09-09 | Wall surface flatness detecting instrument |
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| CN110530246B (en) | 2021-03-26 |
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