CN217385335U - Positioning device for concrete ultrasonic defect and inclination measuring method - Google Patents
Positioning device for concrete ultrasonic defect and inclination measuring method Download PDFInfo
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- CN217385335U CN217385335U CN202220830262.0U CN202220830262U CN217385335U CN 217385335 U CN217385335 U CN 217385335U CN 202220830262 U CN202220830262 U CN 202220830262U CN 217385335 U CN217385335 U CN 217385335U
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- 230000001174 ascending effect Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
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- 238000005259 measurement Methods 0.000 description 18
- 235000012773 waffles Nutrition 0.000 description 10
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Abstract
The utility model relates to the field of building construction, and discloses a positioning device for a concrete ultrasonic defect measuring and inclination measuring method, which comprises grid plates and a connecting piece, wherein the grid plates are oppositely arranged on two sides of a wall body/a cylinder body; and the grid plate and/or the connecting piece are/is provided with a laser height measuring device. The utility model provides an in the testing process because conventional ultrasonic method detects the inside defect of concrete, draw equidistant test net adopt the manual work decide the benchmark, make level, the measuring point angle setting of relative measuring face and draw, and draw the in-process and have the part condition and need fix a position with the help of ladder and ascending a height measure, the positioning process that leads to is complicated, the location degree of difficulty is high, technical problem that factor of safety is low.
Description
Technical Field
The utility model relates to a building construction field specifically relates to a positioner that is used for concrete supersound to survey to lack an inclinometry method.
Background
In the conventional detection process, a great deal of field energy is required to draw an equally spaced test grid. The conventional method comprises marking a reference point from the ground, positioning and obliquely measuring the reference heights of two surfaces from the vertical direction along the reference point (the reference heights of two sides are different in an oblique side method), then extending and positioning a first measuring point to the horizontal direction on the reference heights of two sides, drawing a standard detection grid by using a horizontal ruler and a vertical ruler on the basis of the first measuring point, ensuring that the grid test points of the two surfaces to be obliquely measured are obliquely corresponding one to one, the oblique side angles are the same, the distance measurement is the same, and finally, sequentially determining the number of the measuring points on the grid, wherein the positioning process is complex. In addition, in most cases, the testing part is positioned in the middle or top of the wall and the column, and the positioning needs to be carried out by means of climbing measures such as ladders and scaffolds, so that the positioning difficulty is increased to a certain extent during high-altitude operation, and the positioning accuracy is difficult to ensure.
Therefore, it is an urgent technical problem to be solved in the art to develop a positioning device for a concrete ultrasonic survey method that can position quickly and ensure accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the prior art existence because the conventional ultrasonic method detects the testing process of concrete internal defect, draw equidistant test net adopt the manual work decide the benchmark, make level, the measuring point angle setting of relative measuring face and draw, and draw the in-process and have the part condition to fix a position with the help of ladder and ascending a height measure, the positioning process that leads to is complicated, the location degree of difficulty is high, technical problem that factor of safety is low.
In order to achieve the purpose, the utility model provides a positioner that is used for concrete supersound survey to lack the inclinometry method.
The positioning device comprises grid plates which are oppositely arranged on two sides of the wall/column body and a connecting piece for connecting the grid plates, wherein at least one side of the connecting piece is provided with a vertical extension rod for connecting and fixing the grid plates, so that the grid plates on the two sides of the wall/column body are arranged at different heights; and the grid plate and/or the connecting piece are/is provided with a laser height measuring device.
The utility model provides a positioner that is used for concrete survey to lack oblique survey method, set up the both sides at wall body/cylinder with the waffle slab relatively fixed through utilizing the connecting piece, the operation of drawing the net on the wall body/cylinder that waits to detect has been avoided in the conventional testing process, be equipped with in at least one side of connecting piece simultaneously and be used for connecting and fix the waffle slab, so that the waffle slab that is located wall body/cylinder both sides is the vertical extension rod of not co-altitude setting, so that adjust the angle between the detection position of the correspondence of the waffle slab to setting up relatively and the fixed of position, and utilize the laser altimeter that sets up on waffle slab and/or connecting piece to carry out the accurate setting of preset height to positioner, and realize the real-time location of height, thereby effectual reduction detection error. Furthermore, the technical problems that in the conventional detection process for detecting the internal defects of the concrete by using an ultrasonic method, manual reference determination, leveling, measurement point angle setting of opposite measurement surfaces and drawing are adopted for drawing equidistant test grids, and positioning needs to be carried out by means of ladders and ascending measures under partial conditions in the drawing process, so that the positioning process is complex, the positioning difficulty is high, and the safety coefficient is low are solved.
Preferably, the vertical extending rods are provided with buckles for fixing the grid plate to different height positions at equal intervals.
Preferably, the connecting piece comprises a telescopic rod connected with the oppositely arranged grid plates; and the telescopic rod and/or the vertical extension rod are/is provided with a graduated scale.
Preferably, the connecting member comprises a fixed truss disposed between the oppositely disposed grid plates, the fixed truss being capable of extending in a vertical plane.
Preferably, the fixed truss and/or the grid plate are provided with level bubbles.
Preferably, the fixed truss comprises a plurality of rigid rods hinged to each other and formed as a scissor-type telescopic structure; and/or, on one side adjacent to the grid plate, the fixed truss comprises a rigid rod extending vertically, and the rigid rod is sleeved with the vertically extending rod.
Preferably, a plurality of reserved measuring point holes for measuring points are arranged on the grid plate, and the reserved measuring point holes are uniformly distributed on the grid plate.
Preferably, the reserved measuring point holes comprise closed circular reserved measuring point holes and open semicircular reserved measuring point holes located at the edges of the grid plate.
Preferably, the grid plate is provided with a hole marking area adjacent to the reserved measuring point hole.
Preferably, the periphery of the grid plate is provided with a snap fastener for fixedly connecting with the connecting piece and/or other grid plates.
Drawings
Fig. 1 is a schematic view of the overall structure of the positioning device provided by the present invention;
FIG. 2 is a schematic structural view of the connector and vertical extension pole of FIG. 1;
fig. 3 is a schematic structural diagram of the splice between the grid plate and the grid plate of the positioning device provided by the present invention.
Description of the reference numerals
0. Walls/columns; 1. a grid plate; 2. a connecting member; 3. a vertical extension rod; 301. buckling; 4. a laser altimeter; 5. a telescopic rod; 6. fixing the truss; 7. a level bubble; 8. reserving a measuring point hole; 801. a circular reserved measuring point hole; 802. a measuring point hole is reserved in a semicircular shape; 9. a hole marking area; 10. a fastener.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", "center", "vertical", "horizontal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, the utility model provides a positioner that is used for concrete supersound to survey to lack oblique survey method, this positioner is including being used for setting up relatively at the graticule 1 of wall body/cylinder 0 both sides to and be used for connecting the connecting piece 2 of this graticule 1, at least one side of this connecting piece 2 is equipped with the vertical extension rod 3 that is used for connecting and fixes graticule 1, so that the graticule 1 that is located 0 both sides of wall body/cylinder is not co-altitude setting, is equipped with laser altimeter 4 on graticule 1 and/or the connecting piece 2.
The utility model provides a positioner that is used for concrete survey to lack oblique survey method, set up the both sides at wall body/cylinder with the waffle slab relatively fixed through utilizing the connecting piece, the operation of drawing the net on the wall body/cylinder that waits to detect has been avoided in the conventional testing process, be equipped with in at least one side of connecting piece simultaneously and be used for connecting and fix the waffle slab, so that the waffle slab that is located wall body/cylinder both sides is the vertical extension rod of not co-altitude setting, so that adjust the angle between the detection position of the correspondence of the waffle slab to setting up relatively and the fixed of position, and utilize the laser altimeter that sets up on waffle slab and/or connecting piece to carry out the accurate setting of preset height to positioner, and realize the real-time location of height, thereby effectual reduction detection error. Furthermore, the technical problems that in the conventional detection process for detecting the internal defects of the concrete by using an ultrasonic method, manual reference determination, leveling, measurement point angle setting of opposite measurement surfaces and drawing are adopted for drawing equidistant test grids, and positioning needs to be carried out by means of ladders and ascending measures under partial conditions in the drawing process, so that the positioning process is complex, the positioning difficulty is high, and the safety coefficient is low are solved.
The utility model discloses in the optional embodiment, equidistant being equipped with is used for fixing buckle 301 to the not co-altitude position department with grid plate 1 on the vertical extension rod 3 the utility model discloses in the further optional embodiment, be equipped with the scale on the telescopic link 5 to calculate the line of the check point of the corresponding of presetting on the grid plate 1 that sets up relatively and the contained angle of horizontal to/vertical datum line.
In the optional embodiment of the present invention, the connecting member 2 comprises a telescopic rod 5 connecting the grid plates 1 disposed relatively, preferably, the telescopic rod 5 is a telescopic structure capable of automatically rebounding after being stretched, so as to fasten the grid plates 1 disposed relatively on the wall/column 0. The utility model discloses in the optional embodiment, be equipped with the scale on the telescopic link 5 to measure the distance between the net board 1.
In the alternative embodiment of the present invention, the connecting member 2 includes a fixing truss 6 disposed between the relatively disposed grid plates 1, and the fixing truss 6 can be extended in the vertical plane, so that the grid plates 1 with different lengths can be matched for positioning and measurement. In a further alternative embodiment of the present invention, the connecting member 2 comprises a fixed truss 6 and a telescopic rod 5, and the fixed truss 6 is connected with the telescopic rod 5 to fix the position of the relatively arranged grid plate 1. The telescopic rods 5 are connected with at least the horizontal rods of the fixed truss 6. The telescopic rod 5 and the fixed truss 6 can be fixedly connected or can be detachably connected through a connecting structure. In order to improve the stability of the overall structure of the above-mentioned connecting member 2, in an alternative embodiment of the present invention, the fixed truss 6 includes a plurality of rigid rods hinged to each other and forming a scissor-type telescopic structure. Preferably, the number of the rigid rods can be 7, and the 7 rigid rods are connected into a truss structure, so that the positioning device can be stressed stably and is not easy to deform in the detection process. In combination with the conventional size of the wall/column 0, it is preferable that the fixed ends of the fixed trusses 6 are 300mm long, each truss row is spaced 250mm apart, and the total height is 500mm, and while considering the length of the fixed ends of the fixed trusses 6, it is preferable that the telescopic rods 5 can be extended by 900mm, and can be freely retracted without external force, for self-fixing the grid plates 1 on both detection surfaces of the wall/column 0. The telescopic rod 5 is provided with scales for reading the ultrasonic propagation distance, preferably, the scale range is 300-1200 mm, and the scales can be specifically adjusted according to actual needs.
In order to facilitate leveling of the positioning device, in an alternative embodiment of the present invention, the leveling bubble 7 is disposed on the fixed truss 6 and/or the grid plate 1, and further, the leveling bubble 7 is detachably disposed on the fixed truss 6 and/or the grid plate 1. In the preferred embodiment of the present invention, the laser height indicator 4 is disposed at the lower row of the fixed truss 6 for defining the positioning height. The level bubble 7 on the fixed truss 6 is arranged in the middle of the upper row of trusses of the fixed truss 6 and used for quickly leveling and ensuring that the fixed truss 6 and the positioning device are wholly in a horizontal state. The level bubbles 7 on the grid plate 1 are preferably arranged at the top and the bottom of the grid plate 1, and are used for quick leveling by field workers in different height environments, so that the grid plate 1 is ensured to be in a horizontal state.
The utility model discloses in the optional embodiment, fixed truss 6 includes the rigid rod of vertical extension in one side adjacent with grid plate 1, and 3 covers of vertical extension rod are established in the rigid rod, and the setting of above-mentioned structure is convenient for accomodate positioner's overall structure, the dismouting of being convenient for simultaneously, and it is further preferred that vertical extension rod 3 can carry out vertical extension rod 3 and this vertical extension's rigid rod through buckle 301 and carry out the fixed of relative position. In a further alternative embodiment of the present invention, the vertical extension rod 3 is a loop rod extending device, and the extension rod of the loop rod extending device is sleeved on the left/right side of the fixed truss 6 and fixed with the rigid rod extending vertically in the normal state, when the slant measurement point is needed, the loop rod of the loop rod extending device can extend upwards, and the buckle 301 is arranged every 100 mm. Preferably, the loop bar can be provided with five buckles 301, the buckle 301 can extend upwards by 500mm, and the vertical distances of the inclined sides can be respectively fixed at positions of 100mm, 200mm, 300mm, 400mm and 500mm, so that the grid plates 1 on the two test surfaces can reach the preset height difference position, and then the two inclined sides are formed.
In other embodiments of the present invention, the vertical extension rod 3 may be a rigid rod hinged to the vertical extension of the fixed truss 6, or may be connected to the rigid rod through a connecting member to keep the vertical extension rod 3 and the rigid rod of the vertical extension in the same extending direction, so as to fix the position of the grid plate 1.
The utility model discloses in the optional embodiment, arrange reservation measurement station entrance to a cave 8 that a plurality of measurement stations were used on grid plate 1, should reserve measurement station entrance to a cave 8 equipartitions on grid plate 1 to shine the determination that carries out the position to laser. In a further alternative embodiment, the reserved measuring point hole 8 includes a closed circular reserved measuring point hole 801 and an open semicircular reserved measuring point hole 802 located at the edge of the grid plate 1, and the open semicircular reserved measuring point holes 802 at the edges of two adjacent grid plates 1 can be spliced to form a reserved measuring point hole equal to the circular reserved measuring point hole 801, so that a larger detection area can be formed by splicing the grid plates 1, and the detection operation efficiency can be effectively improved.
The utility model discloses in further optional embodiment, grid plate 1 is close to reservation measurement station entrance to a cave 8 and is equipped with entrance to a cave mark zone 9, and this entrance to a cave mark zone 9 can be used to mark the entrance to a cave position to grid plate 1 that sets up relatively carries out the detection that corresponds highly reservation measurement station entrance to a cave 8, avoids the detection error and the error that the dislocation detection leads to.
In the utility model discloses in the preferred embodiment, the length and width of grid plate 1 is 500mm, reserves measurement station entrance to a cave 8 on grid plate 1, and the interval of reserving measurement station entrance to a cave 8 is 100mm, and in order to arrange more measurement stations, semicircular reservation measurement station entrance to a cave 802 is arranged to upper, lower, right three sides of grid plate 1, monolithic grid plate 1 reserves six rows of five 30 reservation measurement station entrance to a cave 8 altogether. And drawing the measuring point number on a hole marking area 9 on the left lower side or the left upper side of the reserved measuring point hole 8 for quick field recording.
The utility model discloses in the optional embodiment, the periphery of grid plate 1 is equipped with the buckle ware 10 that is used for carrying out fixed connection with connecting piece 2 and/or other grid plate 1, and this buckle ware 10 set up can make the holistic dismouting of being convenient for of positioner, and the portability in the testing process of being convenient for has improved the convenience of detecting the operation. In the present invention, in a further preferred embodiment, the snap fastener 10 is disposed on the vertical rigid rod of the fixed truss 6, the end of the telescopic rod 5, the middle and end of the vertical extension rod 3, and the end of the grid plate 1, for quick detachment and assembly of the positioning device. The fastener 10 at the end of the telescopic rod 5 can also ensure that the telescopic rod 5 can be retracted to firmly fix the grid plate 1 and the wall/column 0 to be measured and other components. The fastener 10 can match the fastener 301 to connect the grid plate 1 and the vertical extension rod 3.
The utility model provides a positioner that is used for concrete ultrasonic to survey to lack the skew measurement method includes following advantage at least:
1. the positioning device has the advantages of accurate positioning, convenient implementation, safety and practicability, and greatly simplifies the process of detecting the concrete defects by ultrasonic by an oblique measurement method;
2. the positioning device is convenient to manufacture, easy to carry, strong in adaptability and not easy to be influenced by the environment;
3. the positioning device realizes real-time positioning of the elevation of the fixed truss through a laser altimeter at the bottom of the fixed truss, realizes accurate positioning of vertical height difference of oppositely arranged grid plates through a vertical extension rod and a buckling position, and finishes real-time positioning in the horizontal direction through fixed spacing of reserved measuring point holes, thereby effectively realizing the three-dimensional real-time positioning integrated completion;
4. the positioning process of the positioning device is easy to implement, the reading of the measuring point is rapid, and particularly when high-altitude detection and positioning are carried out, the working error and potential safety hazard caused by the limitation of a field working surface can be effectively avoided, so that the working efficiency and the construction safety are greatly improved;
5. the positioning work can be quickly finished by a single person, so that the labor cost and the time cost are effectively reduced;
6. the engineering safety guarantee is increased, and the engineering cost is saved;
7. the utility model provides a positioner application prospect is extensive, has fine economic benefits and social.
The utility model provides a positioner that is used for concrete ultrasonic survey to lack oblique survey method specifically is at the in-service use in-process:
after the preparation work to be measured is finished, the grid plate 1 connected with the fixed end is placed on a surface to be measured, the fixed truss 6 is tightly attached to the side surface perpendicular to the surface to be measured, the laser height measuring device 4 is opened, the height of the fixed truss 6 is adjusted, when the height of the fixed truss 6 is consistent with the height of the bottom of the surface to be measured, the horizontal telescopic rod 5 with the end part capable of automatically retracting is pulled out to the outer side of the other surface to be measured, the buckle device 10 at the end part of the telescopic rod 5 is firmly clamped and connected with the buckle device 10 of the grid plate 1 of the other surface to be measured, after the telescopic rod 5 retracts, the retracting force is automatically clamped with the grid plates 1 on the two surfaces to be measured, and the positioning device can be automatically clamped on a wall body/cylinder body 0 or other components to be measured by means of the retracting force of the telescopic rod 5.
Then, the vertical extension rods 3 at the left/right sides of the fixed truss 6 are extended upwards to the height difference (100mm, 200mm, 300mm, 400mm, 500mm) to be measured, and the buckles 301 are fixed. At this time, the grid plate 1 on both test surfaces reaches a predetermined height difference position, and both inclined side surfaces are substantially formed.
And opening the laser height measuring device 4 again, and finely adjusting the height to ensure that the height of the fixed truss 6 is accurate. The levelness of the fixed truss 6 is adjusted according to the air level 7 on the fixed truss 6 so as to ensure that the left side and the right side of the fixed truss 6 are horizontal, the scales on the scale marks of the telescopic rod 5 are read at the moment and are ultrasonic transmission horizontal distances, the height of the buckle 301 of the vertical extension rod 3 is ultrasonic transmission vertical distances, the actual ultrasonic transmission oblique distance can be directly calculated according to the pythagorean theorem, and the distance is recorded.
According to 1 or a plurality of air level 7 (according to different heights, conveniently adjust one of them can), adjust the levelness of grid plate 1 on two testing faces, ensure that grid plate 1 on two testing faces is all in the horizontality, the serial number one-to-one of grid plate 1 on two survey testing faces to one side this moment, the slant range finding of the slant position that the corresponding serial number corresponds to is ultrasonic propagation distance.
And (4) completing positioning, carrying out ultrasonic detection one by one according to the measuring point numbers in the reserved measuring point hole 8, moving the positions one by one, and recording waveform information corresponding to the measuring point numbers at any time to complete the ultrasonic detection.
The utility model provides a positioner that is used for concrete ultrasonic survey to lack oblique survey method, realize the real-time location of elevation through laser altimeter 4 of 6 bottoms of fixed truss, buckle 301 through vertical extension rod 3 realizes the accurate location of perpendicular discrepancy in elevation, the fixed spacing of rethread reservation measurement station entrance to a cave 8 accomplishes the real-time location of horizontal direction, thereby effectively realize three-dimensional real-time location integrative completion, and install the three face and all arrange levelling device, can ensure the accuracy nature of ultrasonic detection distance behind the real-time location, effectively reduce because the inaccurate range error that causes in location. The device is easy to carry, convenient to assemble, easy to implement in the positioning process, quick in measuring point reading, and capable of effectively avoiding working errors and potential safety hazards caused by limitation of a field working surface particularly when high-altitude detection and positioning are carried out, greatly improving the working efficiency and reducing the potential safety hazards. The positioning work can be rapidly finished by a single person, the labor cost and the time cost are effectively reduced, and the economic benefit and the social benefit are higher.
The foregoing is only a preferred/alternative embodiment of this invention and is not intended to limit the invention, since various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The positioning device for the concrete ultrasonic defect-measuring and inclination-measuring method is characterized by comprising grid plates (1) which are oppositely arranged on two sides of a wall body/column body (0) and connecting pieces (2) for connecting the grid plates (1), wherein at least one side of each connecting piece (2) is provided with a vertical extension rod (3) for connecting and fixing the grid plates (1), so that the grid plates (1) on two sides of the wall body/column body (0) are arranged at different heights; and the grid plate (1) and/or the connecting piece (2) are/is provided with a laser height measuring device (4).
2. The positioning device according to claim 1, characterized in that the vertical extension rods (3) are provided with snap-in hooks (301) at equal intervals for fixing the grid plate (1) at different height positions.
3. The positioning device according to claim 1, wherein the connecting member (2) comprises a telescopic rod (5) connecting the oppositely arranged grid plates (1); and the telescopic rod (5) and/or the vertical extension rod (3) are/is provided with a graduated scale.
4. A positioning device according to any one of claims 1-3, characterized in that the connecting piece (2) comprises a fixed truss (6) arranged between the oppositely arranged grid plates (1), which fixed truss (6) can extend in a vertical plane.
5. A positioning device according to claim 4, characterized in that levelling bubbles (7) are provided on the fixed girders (6) and/or on the grid plate (1).
6. The positioning device according to claim 4, characterized in that said fixed truss (6) comprises a plurality of rigid rods hinged to each other and formed as a scissor-type telescopic structure; and/or, the fixed truss (6) comprises a rigid rod extending vertically on one side adjacent to the grid plate (1), and the rigid rod is sleeved with the vertically extending rod (3).
7. The positioning device according to claim 1, characterized in that a plurality of reserved measuring point holes (8) for measuring points are arranged on the grid plate (1), and a plurality of reserved measuring point holes (8) are uniformly distributed on the grid plate (1).
8. The positioning device according to claim 7, characterized in that the reserved measuring point holes (8) comprise closed circular reserved measuring point holes (801) and open semicircular reserved measuring point holes (802) at the edges of the grid plate (1).
9. The positioning device according to claim 7 or 8, characterized in that the grid plate (1) is provided with an opening marking area (9) adjacent to the reserved measuring point opening (8).
10. The positioning device according to claim 1, characterized in that the periphery of the grid plate (1) is provided with snap-in means (10) for a fixed connection with the connecting piece (2) and/or other grid plates (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220830262.0U CN217385335U (en) | 2022-04-11 | 2022-04-11 | Positioning device for concrete ultrasonic defect and inclination measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220830262.0U CN217385335U (en) | 2022-04-11 | 2022-04-11 | Positioning device for concrete ultrasonic defect and inclination measuring method |
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| CN217385335U true CN217385335U (en) | 2022-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813941A (en) * | 2022-04-11 | 2022-07-29 | 中冶检测认证有限公司 | Positioning device for concrete ultrasonic defect and inclination measuring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813941A (en) * | 2022-04-11 | 2022-07-29 | 中冶检测认证有限公司 | Positioning device for concrete ultrasonic defect and inclination measuring method |
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