CN114659876A - Concrete compressive strength detection device - Google Patents
Concrete compressive strength detection device Download PDFInfo
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- CN114659876A CN114659876A CN202210127593.2A CN202210127593A CN114659876A CN 114659876 A CN114659876 A CN 114659876A CN 202210127593 A CN202210127593 A CN 202210127593A CN 114659876 A CN114659876 A CN 114659876A
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- 238000001514 detection method Methods 0.000 title claims abstract description 96
- 238000010079 rubber tapping Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 14
- 239000000523 sample Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
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Abstract
The invention discloses a concrete compressive strength detection device which comprises a resiliometer, wherein the resiliometer comprises a shell, a push handle is arranged on the shell, a calibration unit is arranged on the push handle, and the calibration unit is used for calibrating the abutting angle between an elastic striking rod at the front end of the resiliometer and a concrete detection surface; before the resiliometer on this concrete compressive strength detection device and the contact of every check point on the concrete detection face, the calibration unit can be in advance with the detection face contact of check point department, then the contained angle of the impact bar of calibration unit adjustment resiliometer and concrete check point all adjusts to being in 90 basically, later at the in-process of the impact bar of resiliometer gradually with the detection point contact, the position of resiliometer can be fixed completely to the calibration unit, in order to guarantee that the impact bar of resiliometer can be basically vertical stable with the detection point contact, make the data error that the resiliometer tested concrete compressive strength effectively reduce, in order to improve the judgement to concrete compressive strength.
Description
Technical Field
The invention relates to the technical field of concrete compressive strength detection, in particular to a concrete compressive strength detection device.
Background
The compressive strength of concrete is related to the quality and service life of a building, and the concrete strength value is the maximum stress that the concrete can bear under a certain stress state and under working adjustment. Currently, the common concrete nondestructive testing technology usually uses a rebound method to measure the strength, and a rebound tester is used in the rebound method. The basic principle of the rebound tester is that a spring drives a heavy hammer, the heavy hammer impacts an impact rod which is vertically contacted with the surface of concrete with constant kinetic energy, so that the local concrete deforms and absorbs a part of energy, the other part of energy is converted into rebound kinetic energy of the heavy hammer, when the rebound kinetic energy is completely converted into potential energy, the rebound of the heavy hammer reaches the maximum distance, and the maximum rebound distance of the heavy hammer is displayed by the tester in the name of a rebound value.
If the notice number is CN111398029A, the notice date is 2020, 07 and 10, the application relates to a concrete rebound apparatus and a using method thereof, which relate to the technical field of concrete strength detection, wherein the concrete rebound apparatus comprises a supporting mechanism, a displacement mechanism, an installation mechanism and a rebound apparatus body; the supporting mechanism comprises a mounting frame and a plurality of mounting support columns which are connected, and the mounting support columns are fixed on a component to be tested; the displacement mechanism comprises a driving source and a sliding column which are arranged on the mounting frame, and the driving source drives the sliding column to slide. The sliding column is provided with a sliding hole, the mounting mechanism comprises a first mounting piece and a second mounting piece which are connected, the first mounting piece is positioned on one side of the sliding column, and the second mounting piece is arranged in the sliding hole in a penetrating manner and can slide along the length direction of the sliding hole; second installed part and this body coupling of resiliometer, the sense terminal orientation of resiliometer body detects the face setting. This application has the detection face that makes the better perpendicular component of keeping all the time of the axis of resiliometer body to promote the effect of the intensity measurement data's of component detection face the degree of accuracy.
The shortcoming of prior art lies in, when the compressive strength who detects the concrete, the staff need select a plurality of check points on being detected the concrete test surface, theoretically, the staff need hand the resiliometer make the impact rod vertically contact with the check point and detect many times, but in the in-service use process, the process of manual removal operation resiliometer makes the contained angle between impact rod and the check point unable basically keep at 90, lead to the data error that the resiliometer tested concrete compressive strength, influence concrete compressive strength's judgement.
Disclosure of Invention
The invention aims to provide a concrete compressive strength detection device, which solves the technical problem of a flow collecting net slitting device in the related art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a concrete compressive strength detection device, includes the resiliometer, the resiliometer includes the casing, be provided with on the casing and push away the handle, it is provided with calibration unit to push away on the handle, calibration unit is used for calibrating the striking rod of resiliometer front end and the butt angle of concrete detection face.
The above-mentioned slide guiding mechanism that includes, slide guiding mechanism includes a plurality of parallel arrangement's bracing piece, calibration unit sliding connection in on the bracing piece.
The calibration unit further comprises a support assembly, the support assembly comprises a plurality of sliding blocks, the sliding blocks are arranged on the support rod in a sliding mode, the sliding blocks correspond to the sliding blocks one to one, and a first spring is connected between one end, far away from the elastic striking rod, of the support rod and the sliding blocks.
The ends of the support rods close to the elastic striking rods are connected to a ring plate.
A plurality of ejector rods are arranged on one side, far away from the striking rod, of the ring plate in a sliding mode, and the ejector rods are arranged in parallel with the striking rod.
Foretell a plurality of the ejector pin is equallyd divide for a plurality of regions and each region respectively with the bracing piece one-to-one, the second spring has been cup jointed on the ejector pin, the second spring is connected with the crown plate, one side circumference that the crown plate is close to the elastic striking pole evenly is provided with a plurality of locating plates, be connected with the third spring between locating plate and the bracing piece, ejector pin and locating plate cooperation contact, it has the driving lever to articulate in the bracing piece, and the one end and the locating plate swing joint that the driving lever is close to the crown plate.
The end of the ejector rod, which is far away from the ring plate, is of a conical structure.
Foretell the calibration unit includes the mounting panel, the mounting panel passes through the strapping band setting at the resiliometer outer wall, mounting panel length direction's both ends symmetry is provided with the calibration driving piece, push away and be provided with the setting element that is used for fixed resiliometer position jointly between the driving piece, the front end of resiliometer is provided with the detection piece, the detection piece is used for surveying the concrete detection face and levels, the calibration driving piece is based on the position of the detection data calibration resiliometer of detection piece.
The mounting plate is of a circular arc structure, and the included angle between the two calibration driving pieces is 90 degrees.
Foretell the calibration driving piece includes the sector plate, the sector plate sets up at the both ends symmetry of mounting panel arc length direction, be provided with convex rack on the sector plate, it is provided with the support to push away to correspond the position rotation with the sector plate, the arc limit and the support sliding connection of sector plate, be provided with step motor on the support, the gear is installed to the step motor output, the rack meshes with the gear mutually.
The invention has the beneficial effects that: before resiliometer and concrete detection face every check point contact on, the calibration unit can be in advance with the detection face contact of check point department, then the angle of the contained angle of the impact pole of calibration unit adjustment resiliometer and concrete detection point all adjusts to being in 90 basically, later at the in-process of the impact pole of resiliometer gradually with the detection point contact, the position of resiliometer can be fixed completely to the calibration unit, in order to guarantee that the impact pole of resiliometer can be basically vertical stable with the detection point contact, make the data error that the resiliometer tested concrete compressive strength effectively reduce, in order to improve the judgement to concrete compressive strength.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the alignment actuator of the present invention;
FIG. 3 is a schematic top plan view of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 4.
Description of reference numerals:
1. a rebound tester; 10. a housing; 11. a tapping rod; 2. a push handle; 3. a calibration unit; 30. mounting a plate; 31. binding; 32. calibrating the drive; 320. a sector plate; 321. a rack; 322. a support; 323. a stepping motor; 324. a gear; 33. a positioning member; 330. pressing the cavity; 331. briquetting; 332. an air bag; 333. a slide chamber; 334. a top block; 335. an air tube; 336. positioning a block; 34. a probe member; 340. a mounting frame; 341. an elastic telescopic rod; 342. connecting blocks; 343. a probe ring; 344. a sensor; 345. a ball bearing; 4. a support assembly; 40. a slider; 41. a support bar; 42. a ring plate; 43. a top rod; 44. positioning a plate; 45. a deflector rod.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a concrete compressive strength detection apparatus provided by an embodiment of the present invention includes a resiliometer 1, where the resiliometer 1 includes a housing 10, a push handle 2 is disposed on the housing 10, a calibration unit 3 is disposed on the push handle 2, and the calibration unit 3 is used to calibrate an abutting angle between a tapping rod 11 at a front end of the resiliometer 1 and a concrete detection surface.
Specifically, when detecting the compressive strength of concrete, a plurality of detection points need to be arranged on a selected concrete detection surface, then each detection point can be detected by using the resiliometer 1, and finally the compressive strength of the concrete can be obtained by synthesizing all detection data, when the resiliometer 1 is used, the elastic striking rod 11 at the front end of the resiliometer 1 needs to be vertically contacted with the detection points, so that the obtained detection data can be more accurate, the existing resiliometer 1 is not provided with a structure for calibrating the vertical contact between the elastic striking rod 11 and the detection points, when a calibration unit 3 arranged on the resiliometer 1 is contacted with the detection surface at the detection points, the distance between the elastic striking rod 11 and the detection points still has a set distance, and in the process of pushing the push handle 2 to enable the elastic striking rod 11 to gradually approach the detection points, the calibration unit 3 can utilize the detection point to calibrate the position of the resiliometer 1, make the impact rod 11 of resiliometer 1 front end just can be in basic vertical state when detecting the point contact, so the concrete compressive strength data that resiliometer 1 measured just can be more accurate.
The invention has the beneficial effects that: before resiliometer 1 contacts with every detection point on the concrete detection face, calibration unit 3 can be in contact with the detection face of detection point department in advance, then the contained angle of resiliometer 1's impact rod 11 and concrete detection point all is adjusted to being in 90 basically to calibration unit 3, later at resiliometer 1's impact rod 11 gradually with the in-process of detection point contact, calibration unit 3 can fix resiliometer 1's position completely, in order to guarantee that resiliometer 1's impact rod 11 can be basically perpendicular stable with the detection point contact, make resiliometer 1 test out concrete compressive strength's data error effectively reduce, in order to improve the judgement to concrete compressive strength.
Further, the concrete compressive strength detection device provided by the embodiment of the invention comprises a sliding guide mechanism, the sliding guide mechanism comprises a plurality of support rods 41 arranged in parallel, and the calibration unit 3 is connected to the support rods 41 in a sliding manner.
The calibration unit 3 further comprises a support assembly 4, the support assembly 4 comprises a plurality of sliders 40, the sliders 40 are slidably disposed on a support rod 41 in a one-to-one correspondence manner, and a first spring is connected between one end of the support rod 41 far away from the tapping rod 11 and the sliders 40.
One end of each support rod 41 near the tapping rod 11 is connected to a ring plate 42.
Specifically, when the calibration unit 3 at the front end of the resiliometer 1 is not in contact with the detection surface, the pushing handle 2 is lifted first to make the ring plate 42 on the pushing handle 2 contact with the detection surface first, because the contact area between the ring plate 42 and the detection surface is much larger than that between the tapping rod 11 and the detection surface, in the process of manually pushing the pushing handle 2 by human power to drive the resiliometer 1 to approach the detection surface gradually, because the force pushing the pushing handle 2 is difficult to be concentrated on one point by human power, the component force which is deflected is avoided, the ring plate 42 can play a role of stable support, and the pushing handle 2 can move along the direction designated by the supporting rod 41 all the time due to the sliding fit between the sliding block 40 and the supporting rod 41, which is equivalent to concentrating the component force in the same direction, thereby preventing the component force from being too large to drive the whole body to deflect towards one direction, the first spring can play a role of pulling the supporting rod 41 to move towards the detection surface when the pushing handle 2 moves towards the detection surface gradually, so that the ring plate 42 can be brought into close contact with the detection surface and the first spring facilitates the resetting of the rebound apparatus 1 so as not to affect the next operation of the rebound apparatus 1.
Further, according to the concrete compressive strength detection device provided by the embodiment of the present invention, a plurality of ejector rods 43 are uniformly slidably disposed on one side of the ring plate 42 away from the tapping rod 11, and the ejector rods 43 are parallel to the tapping rod 11.
It is a plurality of ejector pin 43 is equallyd divide into a plurality of regions and each region respectively with 41 one-to-one on the bracing piece, the second spring has been cup jointed on the ejector pin 43, the second spring is connected with crown plate 42, crown plate 42 is close to one side circumference of tapping rod 11 and evenly is provided with a plurality of locating plates 44, be connected with the third spring between locating plate 44 and the bracing piece 41, ejector pin 43 and locating plate 44 cooperation contact, it has driving lever 45 to articulate in the bracing piece 41, and driving lever 45 is close to the one end and the locating plate 44 swing joint of crown plate 42.
And one end of the ejector rod, which is far away from the ring plate, is of a conical structure.
Specifically, because the concrete wall surface is difficult to keep the surface flatness consistent all the time, a plurality of ejector rods 43 are arranged on one side of the ring plate 42, because one end of each ejector rod 43 is of a conical structure, the concrete wall surface can better adapt to pot holes and depressions with different sizes on the detection surface, when the ring plate 42 is pushed to be gradually close to the detection surface, the ejector rods 43 on the flat positions on the detection surface are preferentially extruded to the bottom in the ring plate 42, and the ejector rods in the pot holes and depressions cannot be extruded to the bottom, so that the ring plate 42 can not be close to the detection surface any more, the sliding block 40 can be gradually contacted with the deflector rod 45 by the continuous movement of the push handle 2, the deflector rod 45 can stir the positioning plate 44 to move on the ring plate 42 after being extruded by the sliding block 40, the positioning plate 44 can be in matched contact with the ejector rods 43, because the surface of one end of the ejector rods 43 in the ring plate 42 is rough, the surface of the positioning plate 44 close to the ejector rods 43 is a rough surface, and the two are abutted together due to a larger friction force, even the thrust that the hand is held and is pushed away 2 and promote resiliometer 1 and lean on the in-process of check point and use is also less than the locating plate 44 and the ejector pin 43 and lean on the back and form frictional force to the position of ejector pin 43 is restricted, can't slide on the ring plate 42 again, like this because a plurality of ejector pins 43 carry out the pertinence support on detecting the face, can make between ring plate 42 and the detection face more stable, the second spring is used for the restoration when the ejector pin 43 no longer operates, the third spring is used for the restoration when locating plate 44 no longer operates.
Further, the concrete compressive strength detection device provided by the embodiment of the invention, the calibration unit 3 includes a mounting plate 30, the mounting plate 30 is disposed on the outer wall of the resiliometer 1 through a binding hoop 31, calibration driving parts 32 are symmetrically disposed at two ends of the mounting plate 30 in the length direction, a positioning part 33 for fixing the position of the resiliometer 1 is commonly disposed between the push handle 2 and the calibration driving parts 32, a detection part 34 is disposed at the front end of the resiliometer 1, the detection part 34 is used for detecting the flatness of the concrete detection surface, and the calibration driving parts 32 calibrate the position of the resiliometer 1 based on the detection data of the detection part 34.
Concretely, in the in-process that promotes resiliometer 1 front end striking rod 11 contact check point through pushing away 2, supporting component 4 stable support pushes away 2 backs, survey 34 can be preferred and the detection face contact of check point department, if be not basic perpendicular between resiliometer 1 and the detection face, then survey 34 and can transmit signal for calibration driving piece 32 after the detection face contact, calibration driving piece 32 just can calibrate resiliometer 1's position according to the difference of signal, guarantee that the contained angle between resiliometer 1 and the detection face is in 90 basically, when later promoting to push away 2 and continue to move, setting element 33 carries out the rigidity to resiliometer 1 after the calibration position, can keep all the time after resiliometer 1 like this and detect the contained angle after the face between remove towards the check point, thereby effectively improve concrete compressive strength detection effect.
Preferably, the mounting plate 30 is a circular arc structure, two the included angle between the calibration driving pieces 32 is 90 °, specifically, each calibration driving piece 32 can drive the resiliometer 1 to rotate in a plane by taking a connection point of another calibration driving piece 32 and the push plate as a circle center, so that when the two calibration driving pieces 32 work together, the resiliometer 1 can rotate in two planes, the two planes are mutually perpendicular to each other to form a cross shape, which is similar to a cross positioning method, so that the included angle between the resiliometer 1 and the detection surface is basically 90 °.
Preferably, the calibration driving member 32 includes a sector plate 320, the sector plate 320 is symmetrically disposed at two ends of the mounting plate 30 in the arc length direction, the sector plate 320 is provided with an arc-shaped rack 321, the pushing handle 2 is rotatably provided with a support 322 at a position corresponding to the sector plate 320, the arc edge of the sector plate 320 is slidably connected with the support 322, the support 322 is provided with a stepping motor 323, the output end of the stepping motor 323 is provided with a gear 324, and the rack 321 is engaged with the gear 324.
Specifically, after the detecting member 34 contacts the detecting surface, a signal is transmitted to the stepping motor 323, the stepping motor 323 drives the gear 324 to rotate, because the arc edge of the sector plate 320 is slidably connected with the support 322, the gear 324 rotates to drive the rack 321 to move, the mounting plate 30 drives the resiliometer 1 to rotate by taking a connection point of the push handle 2 and the other support 322 far away from the stepping motor 323 as an axis, and the rotation direction and the rotation angle of the stepping motor 323 are based on the signal transmitted by the detecting member 34, so that the included angle between the resiliometer 1 and the detecting surface can be more accurately adjusted.
Preferably, the positioning element 33 includes a pressure chamber 330, the pressure chamber 330 is opened on pushing away 2, a pressing block 331 is arranged on one side of the pressure chamber 330 in a sliding manner, an air bag 332 is arranged in the pressure chamber 330, the pressing block 331 contacts with the air bag 332, a sliding chamber 333 is arranged at a position corresponding to the support 322 in the pushing away 2, an ejector block 334 is arranged in the sliding chamber 333 in a sliding manner, a fourth spring is connected between the sliding chamber 333 and the ejector block 334, an air pipe 335 is connected between the air bag 332 and the sliding chamber 333, a positioning block 336 is arranged on the support 322 in a sliding manner, a fifth spring is connected between the support 322 and the positioning block 336, and the arc edge of the sector plate 320 is in matched contact with the positioning block 336.
Specifically, after the position of the resiliometer 1 is adjusted, and when the pushing handle 2 is pushed continuously, the pressing block 331 is pressed to press the air bag 332, the air bag 332 outputs air into the sliding cavity 333 through the air pipe 335, the ejector block 334 slides in the sliding cavity 333 due to the pushing of the air, the ejector block 334 can extrude the positioning block 336 after contacting with the positioning block 336, so that the positioning block 336 moves towards the arc edge of the sector plate 320, and the position of the sector plate 320 can be fixed after the positioning block 336 is in matching contact with the arc edge of the sector plate 320, thereby ensuring that the direction cannot be deviated in the process of continuous movement of the resiliometer 1 after being calibrated.
Preferably, the detection piece 34 includes an installation frame 340, the resiliometer 1 is connected with the installation frame 340, an elastic telescopic rod 341 is provided on the installation frame 340, one end of the elastic telescopic rod 341 close to the tapping rod 11 is hinged to a connection block 342 and a joint of the connection block and the tapping rod is provided with a first torsion spring, one end of the connection block 342 far away from the tapping rod 11 is hinged to a probe ring 343 and a joint of the probe ring 343 and the tapping rod is provided with a second torsion spring, the center of the probe ring 343 is aligned with the center line of the tapping rod 11, a sensor 344 is provided on the connection block 342 and is used for detecting the elastic force changes of the first torsion spring and the second torsion spring, the spring stiffness coefficient in the elastic telescopic rod 341 is greater than the stiffness coefficient of the first torsion spring and the second torsion spring, and a plurality of balls 345 are uniformly installed on one side of the tapping rod 11 far away from the probe ring 343 in a rolling manner.
Specifically, after the probe ring 343 contacts the detection surface at the detection point, if the angle between the resiliometer 1 and the detection surface is not 90 °, due to mutual compression between the probe ring 343 and the detection surface, the probe ring 343 drives the connecting block 342 to rotate at the connection with the elastic telescopic rod 341, or the connection between the probe ring 343 and the connecting block 342 rotates, at this time, the first torsion spring or the second torsion spring deforms, then the sensor 344 detects a deformation signal of the first torsion spring or the second torsion spring and transmits the signal to the calibration driving member 32, the calibration driving member 32 calibrates the position of the resiliometer 1 according to the signal, when calibrating the position of the resiliometer 1, the contact surface between the probe ring 343 and the detection surface slides relatively, and the balls 345 can reduce the friction force, thereby facilitating the work of calibrating the driving member 32, and after the position of the resiliometer 1 is calibrated, the resiliometer 1 is pushed close to the detection point and the elastic telescopic rod 341 is squeezed to contract so that the detecting ring 343 does not affect the contact of the tapping rod 11 with the detection point.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a concrete compressive strength detection device, includes the resiliometer, the resiliometer includes the casing, its characterized in that, be provided with on the casing and push away the handle, it is provided with calibration unit to push away on the handle, calibration unit is used for calibrating the striking rod of resiliometer front end and the butt angle of concrete detection face.
2. The concrete compressive strength detection device of claim 1, comprising a sliding guide mechanism, wherein the sliding guide mechanism comprises a plurality of support rods arranged in parallel, and the calibration unit is slidably connected to the support rods.
3. The concrete compressive strength detection device of claim 2, wherein the calibration unit further comprises a support assembly, the support assembly comprises a plurality of sliding blocks, the sliding blocks are slidably disposed on the support rod in a one-to-one correspondence manner, and a first spring is connected between one end of the support rod, which is far away from the tapping rod, and the sliding blocks.
4. The concrete compressive strength detecting device according to claim 3, wherein one end of each of the support rods near the tapping rod is connected to a ring plate.
5. The concrete compressive strength detection device of claim 4, wherein a plurality of top rods are slidably arranged on the side of the ring plate away from the tapping rod, and the top rods are parallel to the tapping rod.
6. The concrete compressive strength detection device according to claim 5, wherein the plurality of ejector rods are equally divided into a plurality of areas, each area is in one-to-one correspondence with the support rod, the ejector rods are sleeved with second springs, the second springs are connected with the ring plate, a plurality of positioning plates are uniformly arranged on one side of the ring plate close to the striking rods in the circumferential direction, third springs are connected between the positioning plates and the support rods, the ejector rods are in fit contact with the positioning plates, shift rods are hinged in the support rods, and one ends of the shift rods close to the ring plate are in movable contact with the positioning plates.
7. The concrete compressive strength detecting device of claim 6, wherein the end of the top rod far away from the ring plate is of a conical structure.
8. The concrete compressive strength detection device of claim 1, wherein the calibration unit comprises a mounting plate, the mounting plate is arranged on the outer wall of the rebound apparatus through a binding band, calibration driving members are symmetrically arranged at two ends of the mounting plate in the length direction, a positioning member for fixing the position of the rebound apparatus is jointly arranged between the pushing handle and the calibration driving members, a detection member is arranged at the front end of the rebound apparatus, the detection member is used for detecting that the concrete detection surface is flat, and the calibration driving members calibrate the position of the rebound apparatus based on detection data of the detection member.
9. The concrete compressive strength detecting device of claim 8, wherein the mounting plate is of a circular arc structure, and an included angle between the two calibration driving members is 90 °.
10. The concrete compressive strength detection device of claim 9, wherein the calibration driving member comprises a sector plate, the sector plate is symmetrically arranged at two ends of the mounting plate in the arc length direction, the sector plate is provided with a circular arc-shaped rack, the push handle is rotatably provided with a support at a position corresponding to the sector plate, the arc edge of the sector plate is slidably connected with the support, the support is provided with a stepping motor, the output end of the stepping motor is provided with a gear, and the rack is meshed with the gear.
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| CN115524248A (en) * | 2022-10-28 | 2022-12-27 | 湖南元天检测技术有限公司 | Concrete strength intellectual detection system device |
| CN116296746A (en) * | 2023-03-13 | 2023-06-23 | 宁波市新铭建设工程测试有限公司 | High-durability pre-stress concrete performance rapid detection method |
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| 董玉 等: "混凝土抗压强度检测技术", 《无损检测》, vol. 41, no. 2, 31 December 2019 (2019-12-31), pages 12 - 15 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115524248A (en) * | 2022-10-28 | 2022-12-27 | 湖南元天检测技术有限公司 | Concrete strength intellectual detection system device |
| CN115524248B (en) * | 2022-10-28 | 2023-08-04 | 湖南元天检测技术有限公司 | Concrete intensity intelligent detection device |
| CN116296746A (en) * | 2023-03-13 | 2023-06-23 | 宁波市新铭建设工程测试有限公司 | High-durability pre-stress concrete performance rapid detection method |
| CN116296746B (en) * | 2023-03-13 | 2023-11-14 | 宁波市新铭建设工程测试有限公司 | High-durability pre-stress concrete performance rapid detection method |
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