CN219736231U - Measuring box convenient for measuring erosion depth of concrete test piece - Google Patents
Measuring box convenient for measuring erosion depth of concrete test piece Download PDFInfo
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- CN219736231U CN219736231U CN202320224270.5U CN202320224270U CN219736231U CN 219736231 U CN219736231 U CN 219736231U CN 202320224270 U CN202320224270 U CN 202320224270U CN 219736231 U CN219736231 U CN 219736231U
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 230000003628 erosive effect Effects 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 32
- 238000011161 development Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000003776 cleavage reaction Methods 0.000 description 7
- 230000007017 scission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model discloses a measuring box convenient for measuring the erosion depth of a concrete test piece, which comprises a box body, a measuring panel, an indicator, a fixing plate and a bottom plate; the measuring panel is detachably arranged on the upper part of the box body, strip-shaped holes are formed in the measuring panel and are parallel to each other, scale marks are respectively arranged on the side edges of each strip-shaped hole, two indicators are respectively movably arranged in each strip-shaped hole, and the two indicators in the strip-shaped holes are respectively used for being aligned with the two edges of the color contour line after the splitting surface of the concrete test piece is subjected to color development reaction; the fixing plate is adjustably arranged on one side face of the box body, and the concrete test piece can be clamped between the fixing plate and the other side face of the box body by adjusting the fixing plate; the bottom plate is detachably arranged at the bottom of the box body. The method can more accurately and rapidly measure the eroded depth of the concrete test piece.
Description
Technical Field
The utility model relates to the technical field of building material performance detection, in particular to a measuring box convenient for measuring erosion depth of a concrete test piece.
Background
Concrete is used as the largest building material, and has wide application range. With the large-scale construction of the infrastructure, the demand of concrete is increased year by year, and different environments have different demands on the durability of concrete. Typically, concrete durability includes resistance to carbonization, chloride penetration depth, sulfate attack, and the like. The method for testing the carbonization resistance and the chloride ion penetration depth mainly comprises the steps of placing a concrete test piece under corresponding environmental conditions, after waiting for a period of time, splitting the concrete test piece, spraying corresponding reagents on a splitting surface to enable the splitting surface to undergo a color reaction, wherein the height of the relevant color of the splitting surface is the corrosion depth of the concrete test piece, and evaluating the durability of the concrete test piece. In general, the splitting plane is divided into a plurality of equal-width regions, the color length in each region is measured, and finally, the average value is used as the final measurement result.
However, since the concrete test piece is a heterogeneous material composed of various materials such as cement, sand, stone and the like, the cleavage surface is often uneven, which greatly increases the difficulty of measurement, reduces the accuracy of the measurement result, is difficult to divide the cleavage surface into areas, increases the workload, and leads to low measurement work efficiency.
Therefore, the utility model solves the existing measurement problem by designing the measuring box which is convenient for measuring the erosion depth of the concrete test piece, and improves the accuracy and efficiency of the measurement result.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a measuring box which is convenient for measuring the erosion depth of a concrete test piece and can more accurately and rapidly measure the erosion depth of the concrete test piece.
The technical scheme adopted by the utility model is as follows:
measuring box convenient to measure concrete test piece and erode degree of depth, its characterized in that: comprises a box body, a measuring panel, an indicator, a fixed plate and a bottom plate; the measuring panel is detachably arranged on the upper part of the box body, strip-shaped holes are formed in the measuring panel and are parallel to each other, scale marks are respectively arranged on the side edges of each strip-shaped hole, two indicators are respectively movably arranged in each strip-shaped hole, and the two indicators in the strip-shaped holes are respectively used for being aligned with the two edges of the color contour line after the splitting surface of the concrete test piece is subjected to color development reaction; the fixing plate is adjustably arranged on one side face of the box body, and the concrete test piece can be clamped between the fixing plate and the other side face of the box body by adjusting the fixing plate; the bottom plate is detachably arranged at the bottom of the box body.
Optionally, the indicator comprises a pointer and a pointer sleeve, the pointer is arranged in the middle of the pointer sleeve in a penetrating way, and the pointer can be adjusted up and down relative to the pointer sleeve; during measurement, the pointer penetrates through the strip-shaped hole, the tip end of the pointer faces downwards, the pointer sleeve is arranged on the strip-shaped hole, and the pointer is movably erected on the upper portion of the box body through the pointer sleeve.
Optionally, the upper surface of pointer cover is equipped with the median indicator line, and the tip of pointer is aimed at to median indicator line vertical downward, and median indicator line extends along the width direction in bar hole.
Optionally, the measuring box further comprises a supporting frame, wherein the supporting frame is arranged on the bottom plate and is used for supporting the concrete test piece with the arc-shaped surface.
Optionally, the two side edges of the supporting frame are respectively provided with a supporting plate, the upper edge of the supporting plate is provided with an inclined plane, the inner side of the inclined plane is inclined downwards, and the supporting plate is contacted with the arc-shaped surface of the concrete test piece through the inclined plane.
Optionally, a limiting plate is arranged on a side surface of the box body, which faces the fixing plate, and one side surface of the concrete test piece is abutted against the limiting plate during measurement.
Optionally, the surfaces of the limiting plate and the fixing plate are respectively provided with a rubber layer, and the limiting plate and the fixing plate are respectively contacted with the concrete test piece through the rubber layers.
Optionally, the both sides of box body are equipped with the threaded rod respectively horizontally, are equipped with the perforation on the fixed plate, and the threaded rod activity passes the perforation, is equipped with lock nut on the threaded rod respectively, and lock nut is located the outside of fixed plate.
Optionally, the upper edge of the box body is provided with a limit groove, the periphery of the measurement panel is provided with a convex strip, and the convex strip is embedded into the limit groove.
Optionally, the side walls of the measuring panel and the box body are transparent plates.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The utility model has simple structure and convenient operation, only the concrete test piece is placed in the measuring box, the position of the indicator is adjusted, the indicator is aligned to the two edges of the color outline after the splitting surface of the concrete test piece undergoes color development reaction, then the scale marks corresponding to the indicator on the measuring panel are read, the eroded depth of the concrete test piece can be calculated, the whole experimental process is simple to operate, the operation can be carried out by a single person without related operation training, the working efficiency is high, the measuring result is accurate, and the test result can be obtained quickly and accurately.
(2) The utility model has wide application range, can measure the erosion depth of various concrete test pieces, and can adapt to the concrete test pieces with different shapes and sizes by selectively installing the bottom plate and the supporting frame.
(3) According to the utility model, the indicator is used for indicating the edge of the color contour line after the splitting surface of the concrete sample is subjected to color development reaction, and no special requirement is provided for the flatness of the splitting surface of the concrete sample.
(4) The utility model divides the measuring area by arranging the parallel strip-shaped holes, thereby eliminating the prior work of dividing the splitting surface of the concrete test piece into areas, and having quicker measurement and higher working efficiency.
Drawings
FIG. 1 is a schematic perspective view of a measuring cassette of the present utility model;
FIG. 2 is a schematic cross-sectional view of a measurement cassette of the present utility model;
FIG. 3 is a schematic perspective view of a measurement panel of the present utility model;
FIG. 4 is a schematic perspective view of the indicator of the present utility model;
FIG. 5 is one of the schematic cross-sectional views of the measuring cassette of the present utility model for measuring a first concrete test piece;
FIG. 6 is a second schematic cross-sectional view of the measuring cassette of the present utility model for measuring a first concrete test piece;
FIG. 7 is a schematic cross-sectional view of a second concrete test piece measured by the measuring cassette of the present utility model;
fig. 8 is a schematic cross-sectional view of a third concrete test piece measured by the measuring cassette of the present utility model.
The meaning of the reference numerals in the figures:
1-a box body; 101-a limit groove; 2-a bottom plate; 3-fixing plates; 4-a threaded rod; 5-measuring panel; 501-bar-shaped holes; 502-graduation marks; 503-convex strips; 6-indicator; 601-pointer; 602-pointer sleeve; 603-median indicator line; 7-a support frame; 701, supporting plate; 702-incline; 8-limiting plates; 9-a concrete test piece; 901-cleavage plane; 10-locking nut.
Detailed Description
The utility model is further described below with reference to examples.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Examples:
as shown in fig. 1 to 4, the measuring box of the present embodiment, which is convenient for measuring the erosion depth of a concrete test piece, comprises a box body 1, a measuring panel 5, an indicator 6, a fixing plate 3 and a bottom plate 2.
The box body 1 of this embodiment is made up of three side walls, and the side walls of the box body 1 are transparent plates. The measuring panel 5 can be detachably mounted on the upper part of the box body, the measuring panel 5 is horizontally arranged, and the specific structure of the detachable mounting is as follows: the upper edge of the box body 1 is provided with a limit groove 101, the periphery of the measurement panel 5 is provided with a convex strip 503, and the convex strip 503 is embedded into the limit groove 101.
The measuring panel 5 is provided with strip-shaped holes 501, the number of the strip-shaped holes 501 is set according to the measuring requirement, and five strip-shaped holes 501 are arranged in the embodiment shown in the figure. The strip holes 501 are parallel, and the measuring area is divided by the strip holes 501. The two sides of each bar-shaped hole 501 are respectively provided with a scale mark 502, the scale marks 502 are evenly divided, each bar-shaped hole 501 is respectively movably provided with two indicators 6, and the indicators 6 can move along the bar-shaped holes 501. During measurement, the two indicators 6 in the strip-shaped hole 501 are aligned with the two edges of the color outline after the cleavage surface 901 of the concrete test piece 9 undergoes a color reaction, and then the eroded depth of the concrete test piece can be obtained by subtracting the readings corresponding to the two indicators 6 by reading the readings of the scale marks 502 corresponding to the indicators 6. The measuring panel 5 of this embodiment is the transparent plate, and transparent setting can be convenient for survey personnel observe the state of concrete test piece 9 in the measuring box, also can be better with the color profile's after the splitting face 901 of indicator 6 and concrete test piece 9 takes place the color reaction edge alignment.
As shown in fig. 4, the indicator 6 of the present embodiment has the structure that: the pointer comprises a pointer 601 and a pointer sleeve 602, wherein the pointer 601 is arranged in the middle of the pointer sleeve 602 in a penetrating manner, and the pointer 601 can be adjusted up and down relative to the pointer sleeve 602. During measurement, the pointer 601 penetrates through the strip-shaped hole 501, the tip of the pointer 601 faces downwards, the tip is aligned with the edge of the color contour line after the splitting surface 901 of the concrete test piece 9 undergoes a color reaction, the pointer sleeve 602 is arranged on the strip-shaped hole 501, and the pointer 601 is movably erected on the upper portion of the box body 1 through the pointer sleeve 602. The upper surface of pointer cover 602 is equipped with the median indicator line 603, and the tip of pointer 601 is aimed at downwards perpendicularly to median indicator line 603, and median indicator line 603 extends along the width direction in bar hole 501, through median indicator line 603 can better read corresponding scale mark.
The specific connection structure of the pointer 601 and the pointer sleeve 602 is as follows: the middle of the pointer sleeve 602 is provided with a threaded hole, the pointer 601 is provided with external threads, the pointer 601 is in threaded connection with the threaded hole through the external threads, and the pointer 601 can be adjusted up and down relative to the pointer sleeve 602 by rotating, so that the split surface of concrete test pieces with different heights can be adapted.
The fixed plate 3 is adjustably mounted on one side of the box body 1, and the concrete test piece 9 can be clamped between the fixed plate 3 and the other side of the box body 1 by adjusting the fixed plate 3. The specific mounting structure of the fixing plate 3 is as follows: the both sides of box body 1 are equipped with threaded rod 4 respectively horizontally, are equipped with the perforation on the fixed plate 3, and threaded rod 4 activity passes the perforation, are equipped with lock nut 10 on the threaded rod 4 respectively, and lock nut 10 is located the outside of fixed plate 3.
The bottom plate 2 is detachably mounted at the bottom of the box body 1, and the detachable mounting structure is the same as the mounting structure of the measurement panel 5.
In the embodiment, the limiting plate 8 is arranged on the side surface, facing the fixed plate 3, of the box body 1, one side surface of the concrete test piece 9 is abutted against the limiting plate 8 during measurement, and the fixed plate 3 is adjusted, so that the concrete test piece 9 can be clamped between the fixed plate 3 and the limiting plate 8. The surface at limiting plate 8 and fixed plate 3 is equipped with the rubber layer respectively, and limiting plate 8 and fixed plate 3 pass through rubber layer and concrete test piece 9 contact respectively, and the rubber layer can increase friction, promotes concrete test piece 9 in measuring the steadiness of box.
The measuring box can be further provided with a supporting frame 7, the supporting frame 7 is arranged on the bottom plate 2, the supporting frame 7 can be detached from the bottom plate 2, the supporting frame 7 is used for supporting a concrete test piece 9 with an arc-shaped surface, the fact that the cleavage surface 901 of the concrete test piece 9 to be tested can be well kept in a parallel state with a measuring panel is ensured, and the supporting frame 7 is an optional accessory. The supporting plates 701 are respectively arranged at two side edges of the supporting frame 7 in the embodiment, the upper edge of the supporting plate 701 is provided with an inclined plane 702, the inner side of the inclined plane 702 is inclined downwards, and the supporting plate 701 is contacted with the arc-shaped surface of the concrete test piece 9 through the inclined plane 702, so that the concrete test piece with the arc-shaped surface can be better supported.
Three ways of measuring the concrete test piece by the present measuring box are listed below:
1. fig. 5 and 6 are schematic diagrams of the measurement of the first concrete test piece by the measuring box, and the measuring box measures a cubic concrete test piece with smaller volume. The specific operation method comprises the following steps: firstly, a bottom plate 2 is arranged at the bottom of a box body 1, a concrete test piece 9 to be tested is integrally placed in the box body 1, a splitting surface 901 of the concrete test piece 9 faces upwards, a fixing plate 3 penetrates through a threaded rod 4, a lock nut 10 is screwed inwards, the concrete test piece 9 is clamped between the fixing plate 8 and the limiting plate 3, then a measuring panel 5 is arranged at the upper part of the box body 1, then an indicator 6 is inserted into a strip-shaped hole 501 in the measuring panel 5, two indicators 6 are inserted into each strip-shaped hole 501, the positions of the indicators 6 in the strip-shaped holes 501 are adjusted, pointers 601 are respectively aligned to two edges of color contour lines after the splitting surface 901 of the concrete test piece 9 is subjected to color development, finally, the readings of scale lines 502 corresponding to middle position indication lines 603 on the surface of a pointer sleeve 602 are observed, the eroded depth of the concrete test piece 9 is calculated through subtraction, and finally, the average value of the measured results of the indicators 6 in a plurality of strip-shaped holes 501 is taken.
2. Fig. 7 shows a schematic diagram of the measurement of a second concrete sample by the measuring box, which measures a cylindrical concrete sample, and the concrete sample 9 has an arc-shaped surface. The specific operation method comprises the following steps: firstly, the bottom plate 2 is arranged at the bottom of the box body 1, the supporting frame 7 is arranged on the bottom plate 2, then the concrete test piece 9 to be tested is placed in the supporting frame 7, the arc surface of the concrete test piece faces downwards, the splitting surface 901 faces upwards, the splitting surface 901 of the concrete test piece 9 is kept horizontal as much as possible, the side surface of the concrete test piece 9 is tightly contacted with the limiting plate 8, the fixing plate 3 passes through the threaded rod 4, the locking nut 10 is screwed inwards, the concrete test piece 9 is clamped between the fixing plate 3 and the limiting plate 8, then the measuring panel 5 is arranged at the upper part of the box body 1, then the indicators 6 are inserted into the strip-shaped holes 501 in the measuring panel 5, two indicators 6 are inserted into each strip-shaped hole 501, the positions of the indicators 6 in the strip-shaped holes 501 are adjusted, the indicators 601 are respectively aligned with the two edges of the color contour lines after the splitting surface 901 of the concrete test piece 9 undergo a color development reaction, finally, the readings of the corresponding scale lines 502 of the middle position indicator line 603 on the surface of the indicator sleeve 602 are observed, the erosion depth of the concrete test piece 9 is calculated, and finally, the average value of the measured results of the indicator 6 in the strip-shaped holes 501 is taken.
3. Fig. 8 is a schematic diagram of the measurement of the third concrete specimen by the measuring box, in which the length of the concrete specimen 9 is greater than the height of the box body 1. The specific operation method comprises the following steps: firstly, placing a concrete test piece 9 to be tested on a horizontal tabletop, keeping a cleavage surface 901 of the concrete test piece 9 upward, then installing a box body 1 on the concrete test piece 9 in a manner that the upper part of the concrete test piece 9 is clamped between a fixed plate 3 and a limiting plate 8 through the fixed plate 3, the limiting plate 8 is tightly contacted with the side surface of the concrete test piece 9, then installing a measuring panel 5 on the upper part of the box body 1, inserting an indicator 6 into a strip-shaped hole 501 in the measuring panel 5, inserting two indicators 6 into each strip-shaped hole 501, adjusting the positions of the indicators 6 in the strip-shaped holes 501, enabling pointers 601 to be respectively aligned with two edges of color contour lines after the cleavage surface 901 of the concrete test piece 9 is subjected to color reaction, finally observing the readings of scale marks 502 corresponding to a middle position indication line 603 on the surface of a pointer sleeve 602, subtracting and calculating the erosion depth of the concrete test piece 9, and taking the average value of the measured results of the indicators 6 in a plurality of strip-shaped holes 501.
The above-mentioned embodiments of the present utility model are not intended to limit the scope of the present utility model, and the embodiments of the present utility model are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present utility model according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present utility model shall fall within the scope of the present utility model.
Claims (10)
1. Measuring box convenient to measure concrete test piece and erode degree of depth, its characterized in that: comprises a box body, a measuring panel, an indicator, a fixed plate and a bottom plate; the measuring panel is detachably arranged on the upper part of the box body, strip-shaped holes are formed in the measuring panel and are parallel to each other, scale marks are respectively arranged on the side edges of each strip-shaped hole, two indicators are respectively movably arranged in each strip-shaped hole, and the two indicators in the strip-shaped holes are respectively used for being aligned with the two edges of the color contour line after the color reaction of the splitting surface of the concrete test piece; the fixing plate is adjustably arranged on one side face of the box body, and the concrete test piece can be clamped between the fixing plate and the other side face of the box body by adjusting the fixing plate; the bottom plate is detachably arranged at the bottom of the box body.
2. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: the indicator comprises a pointer and a pointer sleeve, wherein the pointer penetrates through the middle of the pointer sleeve and can be adjusted up and down relative to the pointer sleeve; during measurement, the pointer penetrates through the strip-shaped hole, the tip end of the pointer faces downwards, the pointer sleeve is arranged on the strip-shaped hole, and the pointer is movably erected on the upper portion of the box body through the pointer sleeve.
3. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 2, wherein: the upper surface of pointer cover is equipped with the median indicator line, the median indicator line vertically downwards aligns the pointed end of pointer, the median indicator line is followed the width direction in bar hole extends.
4. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: the measuring box further comprises a supporting frame, wherein the supporting frame is arranged on the bottom plate and is used for supporting a concrete test piece with an arc-shaped surface.
5. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 4, wherein: two side edges of the supporting frame are respectively provided with a supporting plate, the upper edge of the supporting plate is provided with an inclined plane, the inner side of the inclined plane is inclined downwards, and the support plate is contacted with the arc-shaped surface of the concrete test piece through the inclined plane.
6. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: and a limiting plate is arranged on the side surface of the box body, which is opposite to the fixed plate, and one side surface of the concrete test piece is abutted against the limiting plate during measurement.
7. The measuring cassette for facilitating the measurement of the erosion depth of a concrete test piece according to claim 6, wherein: the surface of limiting plate with the fixed plate is equipped with the rubber layer respectively, limiting plate with the fixed plate is through rubber layer and concrete test piece contact respectively.
8. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: the box body is characterized in that threaded rods are horizontally arranged on two sides of the box body respectively, through holes are formed in the fixing plate, the threaded rods movably penetrate through the through holes, locking nuts are arranged on the threaded rods respectively, and the locking nuts are located on the outer sides of the fixing plate.
9. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: the upper edge of the box body is provided with a limit groove, the periphery of the measurement panel is provided with a raised line, and the raised line is embedded into the limit groove.
10. The measuring box for facilitating the measurement of the erosion depth of a concrete test piece according to claim 1, wherein: the side walls of the measuring panel and the box body are transparent plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224270.5U CN219736231U (en) | 2023-02-14 | 2023-02-14 | Measuring box convenient for measuring erosion depth of concrete test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224270.5U CN219736231U (en) | 2023-02-14 | 2023-02-14 | Measuring box convenient for measuring erosion depth of concrete test piece |
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| Publication Number | Publication Date |
|---|---|
| CN219736231U true CN219736231U (en) | 2023-09-22 |
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ID=88060804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320224270.5U Active CN219736231U (en) | 2023-02-14 | 2023-02-14 | Measuring box convenient for measuring erosion depth of concrete test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736231U (en) |
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2023
- 2023-02-14 CN CN202320224270.5U patent/CN219736231U/en active Active
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