CN112284225A - Structure detection device for ground flatness - Google Patents
Structure detection device for ground flatness Download PDFInfo
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- CN112284225A CN112284225A CN202010924805.0A CN202010924805A CN112284225A CN 112284225 A CN112284225 A CN 112284225A CN 202010924805 A CN202010924805 A CN 202010924805A CN 112284225 A CN112284225 A CN 112284225A
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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
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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Abstract
The application discloses a structure detection device for ground flatness, which relates to the field of structure detection and comprises a support frame, wherein a portal frame is arranged on the support frame, a plurality of detection rods are vertically and slidably connected to the portal frame, and the detection rods are uniformly distributed along the length direction of the portal frame; all be provided with the gyro wheel on conflict ground around the lower terminal surface of support frame, the lower terminal surface of test bar rotates and is connected with the testing wheel on conflict ground, and the vertical pen that is provided with of up end to be provided with the record mechanism that supplies the pen to write on the portal frame. The application has the following advantages and effects: through setting up high automatic detection device, realize the continuous detection and the short-term test of each subaerial position for testing process labour saving and time saving more improves the detection efficiency of ground roughness.
Description
Technical Field
The application relates to the field of structure detection, in particular to a structure detection device for ground flatness.
Background
The structure detection is the verified field detection of main projects influencing the quality of the main structure by a detection mechanism under the condition that design, supervision and construction units jointly participate in witnesses after corresponding project supervision and construction units are accepted before the quality of the main structure is accepted.
The flatness of the ground is related to all aspects of the construction process, and the overlarge error of the flatness of the ground influences the expansion of later-stage construction, so that unnecessary loss of manpower and material resources is caused. Therefore, after the ground construction is completed, the flatness of the ground needs to be detected, that is, whether the ground has a bulging position or not is detected.
In traditional ground flatness testing process, the manual work of the handheld level bar of workman carries out the roughness to a plurality of position on ground usually and detects, and the testing process is wasted time and energy to influence the detection efficiency of ground flatness, remain to improve.
Disclosure of Invention
In order to improve the detection efficiency, the purpose of the application is to provide a structure detection device for the ground flatness.
The application provides a structure detection device of ground roughness adopts following technical scheme: a structure detection device for ground flatness comprises a support frame, wherein a portal frame is arranged on the support frame, a plurality of detection rods are vertically and slidably connected to the portal frame, and the detection rods are uniformly distributed along the length direction of the portal frame; all be provided with the gyro wheel on conflict ground around the lower terminal surface of support frame, the lower terminal surface of test bar rotates and is connected with the testing wheel on conflict ground, and the up end is vertical to be provided with the pen, and be provided with the confession on the portal frame the record mechanism that the pen was write.
Through adopting above-mentioned technical scheme, when using above-mentioned detection device, place the support frame in subaerial, make gyro wheel and detection wheel conflict ground, then promote the support frame along the rectilinear direction motion, the support frame drives the test rod and detects wheel synchronous motion this moment. If the swelling phenomenon exists on the ground, the detection wheel and the detection rod are automatically driven to move upwards, and then the writing pen on the detection rod writes marks on the recording mechanism, so that the swelling position can be recorded in time. After the ground detection is finished, the marks on the recording mechanism are observed, whether the ground bulges or not is judged, and the flatness detection of the ground is realized. Therefore, through the arrangement of the high-automation detection device, continuous detection and rapid detection of all positions on the ground are realized, so that the detection process is more time-saving and labor-saving, and the detection efficiency of the ground flatness is improved.
Optionally: the recording mechanism comprises a mounting frame arranged on the portal frame, and a writing board positioned right above the writing pen is horizontally arranged on the mounting frame; the mounting bracket level is provided with and is located the unwinding roller of clipboard top, the winding has writing paper on the unwinding roller, writing paper laminating the lower terminal surface of clipboard, and be provided with drive mechanism on the mounting bracket.
By adopting the technical scheme, when the recording mechanism works, the writing paper is pulled by the traction mechanism, so that the writing paper slides on the lower end surface of the writing board. When the bulge position exists, the writing pen moves upwards and props against the writing paper, and at the moment, the mark is left on the writing paper, so that the bulge position is quickly recorded. Consequently, through setting up the succinct structure to job stabilization's record mechanism realizes quick record and the accurate record of ground bulge position, improves detection efficiency and detection precision.
Optionally: the traction mechanism comprises a pair of traction rollers for clamping the writing paper, a driving mechanism for driving the traction rollers to rotate is arranged on the idler wheel, and a storage box located below the traction rollers is arranged on the mounting frame.
By adopting the technical scheme, when the traction mechanism works, the driving mechanism is utilized to control the pair of traction rollers to synchronously rotate, and the pair of traction rollers rotate towards the direction between the pair of traction rollers, so that the traction and the conveying of the writing paper are realized. Simultaneously, writing paper is neatly stored and collected through the storage box, so that the later-stage observation of the process of the marks on the writing paper is more convenient. Therefore, the structure is simple, the traction mechanism works stably, stable traction transmission of writing paper is achieved, and normal detection work of the detection device is guaranteed.
Optionally: the driving mechanism comprises a driving wheel arranged on the roller, two ends of the pair of traction rollers are respectively provided with gears which are meshed with each other, the outer wall of one gear is provided with a driven wheel, and a synchronous belt is wound between the driving wheel and the driven wheel which are positioned on the same side.
Through adopting above-mentioned technical scheme, when the gyro wheel was rotatory, will drive the action wheel synchronous revolution, under the mating reaction of hold-in range and follow driving wheel afterwards, control a pair of gear relative rotation to realize the stable rotation control of a pair of carry over pinch rolls. Consequently through the rotation that utilizes the gyro wheel and the linkage cooperation of action wheel and follow driving wheel, the rotation of control carry over pinch rolls and the transmission of writing paper realize that whole support frame process of marcing goes on with the synchronization of writing paper transmission process, consequently makes things convenient for the later stage to confirm to write the concrete position that the sign corresponds on the paper for the testing process is light convenient more.
Optionally: the writing pen comprises a pen holder and a sponge pen point, wherein the pen holder is vertically arranged, the sponge pen point is arranged at the upper end of the pen holder, and the writing paper is made of water writing cloth.
By adopting the technical scheme, when the swelling position needs to be recorded, the sponge pen point is soaked by directly utilizing clear water and matched with writing paper made of writing cloth, data can be recorded on the writing paper, and after water stains on the writing paper are dried, marks on the writing paper disappear, so that the writing paper can be reused, and the energy-saving and emission-reducing requirements at the current stage are met.
Optionally: every all be provided with the intercommunication in the pen-holder the interface channel of sponge nib, be provided with the water storage bag on the mounting bracket, be provided with the intercommunication on the water storage bag interface channel's connecting pipe.
Through adopting above-mentioned technical scheme, when needs wet the writing pen, press the water storage bag, make the clear water in the water storage bag discharge to the interface channel in along the connecting pipe, realize soaking fast of all sponge nibs to reduce the time of preparation work, improve detection efficiency.
Optionally: the two ends of the writing paper are provided with protruding strips, the unwinding roller is provided with grooves for the protruding strips to be embedded, and the protruding strips are provided with locking mechanisms for fixing the protruding strips in the grooves.
Through adopting above-mentioned technical scheme, when needs are changed writing paper, remove locking mechanical system, then take out the sand grip from the recess in, can realize writing the dismantlement of paper. And then after the convex strips are embedded into the grooves, the convex strips are locked by using a locking mechanism, and the installation and the replacement of new writing paper can be realized. Therefore, the writing paper which is detachable and convenient to detach is arranged, so that the writing paper can be quickly maintained and replaced, and the normal use of the detection device is ensured.
Optionally: the locking mechanism comprises elastic locking plates arranged at two ends of the convex strip, one end of each locking plate, which is far away from the writing paper, is fixed on the outer wall of the convex strip, and the other end of each locking plate is gradually far away from the outer wall of the convex strip; the end, close to the writing paper, of the locking plate is bent outwards to form a folded edge pressing the outer wall of the unwinding roller, a clamping block is arranged on the outer wall, close to the writing paper, of the locking plate, and clamping grooves for the clamping block to be embedded are formed in the inner walls of the two ends of the groove.
Through adopting above-mentioned technical scheme, when removing locking mechanical system, press the hem and drive the lockplate and be close to the sand grip outer wall, lockplate drive fixture block simultaneous movement this moment. And releasing the locking mechanism until the clamping block is separated from the clamping groove. When the locking mechanism is locked, the folded edge is loosened, the locking plate springs open and gradually keeps away from the outer wall of the convex strip, and the locking plate drives the clamping block to synchronously and reversely move. And after the clamping block is completely embedded into the clamping groove, the locking of the locking mechanism is realized. Therefore, through the locking mechanism which is simple in structure and easy and convenient in locking and releasing processes, the writing paper can be quickly disassembled, assembled and maintained and replaced.
Optionally: the both ends of clipboard all are provided with and contradict the spacing ring of writing paper both sides.
Through adopting above-mentioned technical scheme, realize writing the spacing of paper through setting up the spacing ring, guarantee to write the steady motion of paper, realize the stable record of the position of bulging promptly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the high-automation detection device, continuous detection and quick detection of each position on the ground are realized, so that the detection process is more time-saving and labor-saving, and the detection efficiency of the ground flatness is improved;
2. by arranging the recording mechanism which is simple in structure and stable in work, the rapid recording and the accurate recording of the ground bulging position are realized, and the detection efficiency and the detection precision are improved;
3. the rotation of the traction roller and the transmission of the writing paper are controlled by utilizing the rotation of the idler wheel and the linkage and matching of the driving wheel and the driven wheel, so that the advancing process of the whole support frame and the transmission process of the writing paper are synchronously carried out, and the specific position corresponding to the mark on the writing paper is conveniently determined in the later stage, so that the detection process is easier and more convenient;
4. the reusable writing pen and the reusable writing paper are arranged, so that the repeated use of the writing pen and the reusable writing paper is realized, and the requirements of energy conservation and emission reduction at the present stage are met;
5. through the writing paper that sets up dismantled and assembled just make things convenient for the dismouting, realize writing the quick maintenance of paper and change, guarantee detection device's normal use.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a schematic structural view of the support frame of the embodiment;
FIG. 3 is a schematic structural view of a recording mechanism of the embodiment;
FIG. 4 is a schematic diagram of the connection relationship of the embodiment;
FIG. 5 is a schematic structural diagram of a writing pen of the embodiment;
fig. 6 is a schematic structural view of a lock mechanism of the embodiment.
Reference numerals: 1. a support frame; 11. a roller; 2. a gantry; 21. a detection lever; 22. a snap ring; 23. detecting a wheel; 24. a writing pen; 25. a pen holder; 26. a sponge pen point; 27. a connecting channel; 28. a water storage bag; 29. a connecting pipe; 3. a handrail; 4. a recording mechanism; 41. a mounting frame; 42. a writing board; 43. unwinding rollers; 44. writing paper; 45. a limiting ring; 46. a storage box; 5. a traction mechanism; 51. a traction roller; 6. a drive mechanism; 61. a driving wheel; 62. a gear; 63. a driven wheel; 64. a synchronous belt; 7. a convex strip; 8. a groove; 9. a locking mechanism; 91. a locking plate; 92. folding edges; 93. a clamping block; 94. a clamping groove.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
As shown in fig. 1 and 2, a structure detecting device for ground flatness comprises a support frame 1, wherein a portal frame 2 and a handrail 3 are arranged on the support frame 1. Vertical sliding connection has a plurality of detection poles 21 on the portal frame 2, and a plurality of detection poles 21 are along the length direction evenly distributed of portal frame 2 to the outer wall of detection pole 21 is provided with the snap ring 22 of contradicting the portal frame 2 up end.
As shown in fig. 1 and 2, the periphery of the lower end surface of the support frame 1 is provided with rollers 11 which abut against the ground, the lower end surface of the detection rod 21 is rotatably connected with a detection wheel 23 which abuts against the ground, the upper end surface is vertically provided with a writing pen 24, and the portal frame 2 is provided with a recording mechanism 4 for writing by the writing pen 24.
When using above-mentioned detection device, place support frame 1 on subaerial, make gyro wheel 11 and detection wheel 23 conflict ground, then promote handrail 3 and drive support frame 1 along rectilinear direction motion, support frame 1 drives the synchronous motion of detection pole 21 and detection wheel 23 this moment.
If the swelling phenomenon exists on the ground, the swelling position automatically drives the detection wheel 23 and the detection rod 21 to move upwards, and then the writing pen 24 on the detection rod 21 writes marks on the recording mechanism 4, so that the swelling position is recorded in time.
After the ground detection is finished, the marks on the recording mechanism 4 are observed, whether the ground bulges or not is judged, and the flatness detection of the ground is realized. And the specific bulging position can also be judged from the mark position on the recording mechanism 4.
As shown in fig. 1 and 3, the recording mechanism 4 includes a mounting bracket 41 provided on the gantry 2, and a writing board 42 located right above the writing pen 24 is horizontally provided on the mounting bracket 41.
As shown in fig. 1 and 3, the mounting frame 41 is horizontally provided with an unwinding roller 43 located above the writing board 42, writing paper 44 is wound on the unwinding roller 43, the writing paper 44 is attached to the lower end surface of the writing board 42, and both ends of the writing board 42 are provided with limit rings 45 abutting against both sides of the writing paper 44.
As shown in fig. 3 and 4, the mounting frame 41 is provided with a drawing mechanism 5, the drawing mechanism 5 includes a pair of drawing rollers 51 for holding the writing paper 44, the roller 11 is provided with a driving mechanism 6 for driving the drawing rollers 51 to rotate, and the mounting frame 41 is provided with a storage box 46 located below the drawing rollers 51.
When the recording mechanism 4 is operated, the roller 11 controls the driving mechanism 6 to operate, and at this time, the driving mechanism 6 controls the pair of pulling rollers 51 to rotate synchronously, and the pair of pulling rollers 51 rotate in the direction between the two, so that the writing paper 44 is pulled and conveyed, and the writing paper 44 is wound off from the unwinding roller 43, and the storage box 46 is used for neatly storing and collecting the writing paper 44.
At the same time, the writing paper 44 slides along the lower end surface of the writing board 42 by the position-limiting action of the position-limiting ring 45. And when there is a raised position, the pen 24 moves upward and abuts the writing paper 44, leaving a mark on the writing paper 44, enabling quick recording of the raised position.
After the detection is finished, the writing paper 44 can be taken out of the storage box 46, the initial working end of the writing paper 44 is located at the initial detection end of the ground, then the writing paper 44 is flatly laid on the ground, the mark on the writing paper 44 is observed, and the bulging position of the ground is accurately judged.
As shown in fig. 1 and 3, the driving mechanism 6 includes a driving wheel 61 provided on the roller 11, and gears 62 engaged with each other are provided at both ends of the pair of pulling rollers 51. The outer wall of one of the gears 62 is provided with a driven wheel 63, and a synchronous belt 64 is wound between the driving wheel 61 and the driven wheel 63 which are positioned on the same side.
When the gyro wheel 11 is rotatory, will drive action wheel 61 synchronous revolution, under the hold-in range 64 and the mating reaction from driving wheel 63, control a pair of gear 62 relative rotation afterwards to realize the stable rotation control of a pair of carry over pinch rolls 51, realize that whole support frame 1 advances the process and goes on with the synchronization of writing paper 44 transmission process, consequently make things convenient for the later stage to confirm the concrete position that the sign corresponds on writing paper 44, make the testing process light convenient more.
As shown in fig. 1 and 5, the writing pen 24 includes a pen shaft 25 vertically disposed and a sponge nib 26 disposed at an upper end of the pen shaft 25, and the writing paper 44 is made of water writing cloth.
As shown in fig. 1 and 5, a connection channel 27 for communicating the sponge pen tip 26 is provided in each pen holder 25, a water storage bag 28 is provided on the mounting rack 41, and a connection pipe 29 for communicating the connection channel 27 is provided on the water storage bag 28.
When the bulge position needs to be recorded, the water storage bag 28 is pressed first, so that the clean water in the water storage bag 28 is discharged into the connecting channel 27 along the connecting pipe 29, and the quick wetting of all the sponge pen points 26 is realized. Therefore, when the writing pen 24 is operated, data can be recorded on the writing paper 44 by directly matching with the writing paper 44 made of the writing cloth. After the water stain on the writing paper 44 is dried, the mark on the writing paper 44 disappears, so that the writing paper 44 is reused, and the requirements of energy conservation and emission reduction at the present stage are met.
As shown in fig. 6, both ends of the writing paper 44 are provided with a convex strip 7, the unwinding roller 43 is provided with a concave groove 8 into which the convex strip 7 is fitted, and the convex strip 7 is provided with a locking mechanism 9 for fixing it in the concave groove 8.
As shown in fig. 6, the locking mechanism 9 includes elastic locking plates 91 provided at both ends of the protruding strip 7, and one end of the locking plate 91 facing away from the writing paper 44 is fixed to the outer wall of the protruding strip 7, and the other end is gradually spaced away from the outer wall of the protruding strip 7.
As shown in fig. 6, one end of the lock plate 91 near the writing paper 44 is bent outward to form a flange 92 pressing against the outer wall of the unwinding roller 43. A locking block 93 is arranged on the outer wall of one end of the locking plate 91 close to the writing paper 44, and clamping grooves 94 for the locking block 93 to be embedded are arranged on the inner walls of two ends of the groove 8.
When the writing paper 44 needs to be replaced, the pressing flange 92 drives the locking plate 91 to approach the outer wall of the convex strip 7, and at the moment, the locking plate 91 drives the latch 93 to move synchronously. After the latch 93 is disengaged from the engaging groove 94, the locking mechanism 9 is released, and then the protrusion 7 is taken out of the groove 8, so that the writing paper 44 can be detached.
Then, after the convex strip 7 is embedded into the groove 8, the folded edge 92 is loosened, the locking plate 91 is sprung and gradually separated from the outer wall of the convex strip 7, and the locking plate 91 drives the fixture block 93 to synchronously and reversely move. And after the clamping block 93 is completely embedded into the clamping groove 94, the locking of the locking mechanism 9 is realized, so that the writing paper 44 is quickly assembled and disassembled and is quickly maintained and replaced.
The working principle is as follows: when the detection device works, the support frame 1 is placed on the ground, the idler wheel 11 and the detection wheel 23 are abutted against the ground, then the support frame 1 is pushed to move along the linear direction, and the support frame 1 drives the detection rod 21 and the detection wheel 23 to move synchronously. If the swelling phenomenon exists on the ground, the detection wheel 23 and the detection rod 21 are automatically driven to move upwards, and then the writing pen 24 on the detection rod 21 writes marks on the writing paper 44, so that the swelling position can be recorded in time. After the detection is finished, the initial working end of the writing paper 44 can be located at the initial detection end of the ground, then the writing paper 44 is flatly laid on the ground, the mark on the writing paper 44 is observed, and the bulging position of the ground is accurately judged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a structure detection device of ground roughness which characterized in that: the device comprises a support frame (1), wherein a portal frame (2) is arranged on the support frame (1), a plurality of detection rods (21) are vertically and slidably connected to the portal frame (2), and the detection rods (21) are uniformly distributed along the length direction of the portal frame (2);
all be provided with gyro wheel (11) on conflict ground around the lower terminal surface of support frame (1), the lower terminal surface of test bar (21) rotates and is connected with detection wheel (23) on conflict ground, and the up end is vertical to be provided with writing pen (24), and be provided with the confession on portal frame (2) writing mechanism (4) that writing pen (24) write.
2. A structure detecting device of a ground flatness according to claim 1, characterized in that: the recording mechanism (4) comprises an installation frame (41) arranged on the portal frame (2), and a writing board (42) positioned right above the writing pen (24) is horizontally arranged on the installation frame (41);
mounting bracket (41) level is provided with and is located unreeling roller (43) above clipboard (42), it has writing paper (44) to twine on unreeling roller (43), writing paper (44) laminating the lower terminal surface of clipboard (42), and be provided with drive mechanism (5) on mounting bracket (41).
3. A structure detecting device of a ground flatness according to claim 2, characterized in that: the traction mechanism (5) comprises a pair of traction rollers (51) for clamping the writing paper (44), a driving mechanism (6) for driving the traction rollers (51) to rotate is arranged on the roller (11), and a storage box (46) located below the traction rollers (51) is arranged on the mounting frame (41).
4. A structure detecting device of a ground flatness according to claim 3, characterized in that: the driving mechanism (6) comprises a driving wheel (61) arranged on the roller (11), two ends of the traction roller (51) are provided with gears (62) which are meshed with each other, the outer wall of one of the gears (62) is provided with a driven wheel (63), and a synchronous belt (64) is wound between the driving wheel (61) and the driven wheel (63) and is positioned on the same side.
5. A structure detecting device of a ground flatness according to claim 2, characterized in that: the writing pen (24) comprises a pen holder (25) and a sponge pen point (26), wherein the pen holder (25) is vertically arranged, the sponge pen point (26) is arranged at the upper end of the pen holder (25), and the writing paper (44) is made of water writing cloth.
6. A structure detecting device of a ground flatness according to claim 5, characterized in that: every all be provided with intercommunication in pen-holder (25) connect channel (27) of sponge nib (26), be provided with water storage bag (28) on mounting bracket (41), be provided with the intercommunication on water storage bag (28) connect pipe (29) of channel (27).
7. A structure detecting device of a ground flatness according to claim 5, characterized in that: the both ends of writing paper (44) all are provided with sand grip (7), be provided with the confession on unreeling roller (43) recess (8) of sand grip (7) embedding, and be provided with on sand grip (7) and be used for being fixed in locking mechanical system (9) in recess (8).
8. A structure detecting device of a ground flatness according to claim 7, characterized in that: the locking mechanism (9) comprises elastic locking plates (91) arranged at two ends of the convex strip (7), one end of each locking plate (91) departing from the writing paper (44) is fixed on the outer wall of the convex strip (7), and the other end of each locking plate (91) is gradually far away from the outer wall of the convex strip (7);
one end, close to the writing paper (44), of the locking plate (91) is bent outwards to form a folded edge (92) pressing the outer wall of the unwinding roller (43), a clamping block (93) is arranged on the outer wall of one end, close to the writing paper (44), of the locking plate (91), and clamping grooves (94) for the clamping block (93) to be embedded into are formed in the inner walls of the two ends of the groove (8).
9. A structure detecting device of a ground flatness according to claim 1, characterized in that: and both ends of the writing board (42) are provided with limit rings (45) which are abutted against both sides of the writing paper (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010924805.0A CN112284225A (en) | 2020-09-05 | 2020-09-05 | Structure detection device for ground flatness |
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| CN202010924805.0A CN112284225A (en) | 2020-09-05 | 2020-09-05 | Structure detection device for ground flatness |
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| CN114963951A (en) * | 2022-07-30 | 2022-08-30 | 武汉山那边科技有限公司 | Plate flatness measuring device for manufacturing furniture |
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|---|---|---|---|---|
| CN114526658A (en) * | 2022-04-24 | 2022-05-24 | 广东环达工程检测有限公司 | Omnibearing efficient detection method applied to bridge cracks |
| CN114963951A (en) * | 2022-07-30 | 2022-08-30 | 武汉山那边科技有限公司 | Plate flatness measuring device for manufacturing furniture |
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Application publication date: 20210129 |
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