CN115524248B - Concrete intensity intelligent detection device - Google Patents
Concrete intensity intelligent detection device Download PDFInfo
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- CN115524248B CN115524248B CN202211333751.6A CN202211333751A CN115524248B CN 115524248 B CN115524248 B CN 115524248B CN 202211333751 A CN202211333751 A CN 202211333751A CN 115524248 B CN115524248 B CN 115524248B
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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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- 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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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Abstract
The invention discloses an intelligent concrete strength detection device, which comprises a resiliometer and a bracket, wherein an abutting surface for abutting on a wall surface to be measured is arranged on the bracket, a plurality of pressure sensors are arranged on the abutting surface, the resiliometer is movably connected to the bracket, and a calibration plate for adjusting the impact angle between an impact rod and the wall surface to be measured is fixedly connected to the bracket; and the calibration plate is provided with a calibration through hole through which the bullet striking rod can pass. Through installing the resiliometer in the support, and be provided with a plurality of pressure sensor in the support bottom, when a plurality of pressure sensor numerical values are unanimous, also support and the wall that awaits measuring keep perpendicular promptly, because the through-hole on the calibration board sets up with the support is coaxial, consequently pass the bullet of through-hole hit the pole and also keep perpendicular with the wall that awaits measuring to make bullet hit the pole and can with the wall vertical contact that awaits measuring, guaranteed the accuracy of measurement numerical value.
Description
Technical Field
The invention relates to the field of engineering quality detection, in particular to an intelligent concrete strength detection device.
Background
The concrete strength represents the maximum stress which the concrete can bear under certain stress state and working condition, in order to avoid the concrete being damaged during detection, the concrete is measured by adopting a rebound method, and the concrete operation steps are as follows: 1. selecting a basically flat area on a wall surface to be detected; 2. drawing 16 grids on the selected area; 3. using a resiliometer to perform pressing detection on each grid; 4. the values on the resiliometer were read and recorded.
The utility model provides a 202210375484.2 is applied for, the application date is 2022.04.11, and the name is a concrete strength detection device for building detection, which comprises a frame body, the installing port has all been seted up to the both sides outer wall of framework, and is provided with the gag lever post in the installing port, the outer wall slip of gag lever post is provided with the slide, fixed mouth has been seted up to the outer wall of slide, and slides in the fixed mouth and be provided with the slider, run through on the slider and be provided with the resiliometer, the outer wall of slider is connected with the riding ring through the bracing piece, and the resiliometer sets up in the riding ring, still includes: the limiting mechanism is arranged on the outer wall of the frame body and used for limiting the position of the resiliometer; the leveling mechanism is arranged on the outer side of the frame body and used for enabling the rebound instrument to be vertical to the detection surface during detection.
The defect in the prior art lies in that when using the resiliometer to detect concrete strength, adopt manual direct hand resiliometer to measure more for the resiliometer can have certain probability to appear the slope when measuring, thereby make the resiliometer tip the bullet hit the pole can't perpendicular with await measuring the wall contact, obviously, the concrete strength result that the resiliometer detected under the inclined state can have certain error.
Disclosure of Invention
The invention aims to provide an intelligent concrete strength detection device for solving the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the intelligent concrete strength detection device comprises a rebound instrument and a bracket, wherein an abutting surface for abutting on a wall surface to be measured is arranged on the bracket, a plurality of pressure sensors are arranged on the abutting surface, the rebound instrument is movably connected to the bracket, and a calibration plate for adjusting the impact angle between an impact rod and the wall surface to be measured is fixedly connected to the bracket;
and the calibration plate is provided with a calibration through hole through which the bullet striking rod can pass.
The intelligent concrete strength detection device is characterized in that the calibration plate is fixedly connected to the bottom end of the support, the calibration through hole is provided with a guide section and a limit section, and the position of the calibration through hole is correspondingly arranged with the position of the flicking rod.
According to the intelligent concrete strength detection device, the pressure sensors are not less than three and are uniformly arranged on the abutting surface in an array mode.
The concrete strength intelligent detection device is characterized in that a universal cylinder is fixedly connected to the resiliometer, a sliding block is slidably connected to the inner side of the support, an adjusting hole matched with the universal cylinder is formed in the sliding block, and the universal cylinder is rotationally connected with the adjusting hole.
According to the intelligent concrete strength detection device, the damping structures are arranged on the outer side wall of the universal cylinder and the inner side wall of the adjusting hole.
The intelligent concrete strength detection device is characterized in that a passive alarm mechanism is arranged between the adjusting hole and the universal cylinder and comprises a first sounding sheet and a second sounding sheet, the first sounding sheet is fixedly connected to the outer side wall of the universal cylinder, the second sounding sheet is fixedly connected to the inner side wall of the adjusting hole, and the first sounding sheet and the second sounding sheet rub to give out alarm.
The intelligent concrete strength detection device further comprises a reciprocating driving mechanism for providing impact force of the resiliometer, the reciprocating driving mechanism comprises a driving motor and a threaded rod fixedly connected with the output end of the driving motor, the driving motor is fixedly connected to the inner side wall of the support, a threaded hole matched with the threaded rod is formed in the sliding block, and the threaded rod is in threaded connection with the threaded hole.
The utility model provides a concrete intensity intelligent detection device, be provided with passive clean mechanism on the support, passive clean mechanism includes drive block and transfer line, the drive block with support sliding connection, the rigid coupling has guide ring and shell on the support, sliding connection has the stripper plate on the shell, the transfer line rigid coupling in on the stripper plate, and with guide ring sliding connection, drive block both ends respectively with slider and transfer line butt, be provided with elastic air bag between stripper plate and the shell, a plurality of air outlets have been seted up on the support, elastic air bag with the air outlet intercommunication.
According to the intelligent concrete strength detection device, the plurality of air outlets are fixedly connected with the filter screens.
The intelligent concrete strength detection device is characterized in that a connecting portion is arranged on the transmission block and is elastically connected with the support.
According to the intelligent concrete strength detection device, the rebound instrument is arranged in the support, the plurality of pressure sensors are arranged at the bottom end of the support, and when the values of the plurality of pressure sensors are consistent, namely the support is vertical to the wall surface to be measured, the through holes on the calibration plate are coaxially arranged with the support, so that the rebound rod penetrating through the through holes is vertical to the wall surface to be measured, the rebound rod can vertically contact with the wall surface to be measured, and the accuracy of the measured values is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed 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 may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of an external overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an external side view structure according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken at a-a of FIG. 2;
FIG. 4 is a schematic diagram of the overall structure of a transmission block according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the overall structure of a convex portion according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the partial structure of FIG. 3A;
FIG. 7 is an enlarged schematic view of a partial structure at B in FIG. 3;
FIG. 8 is a schematic view of an inner block and outer housing connection structure according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a passive cleaning mechanism according to another embodiment of the present invention.
Reference numerals illustrate:
1. a resiliometer; 1.1, flicking the rod; 2. a bracket; 2.1, an abutting surface; 2.2, connecting rod; 2.3, top plate; 2.4, a hand-held part; 3. a pressure sensor; 4. a calibration plate; 5. calibrating the through hole; 5.1, a guiding section; 5.2, a limiting section; 6. a universal cylinder; 7. a slide block; 7.1, an inner block; 7.2, an outer housing; 7.3, a cross bar; 7.4, adjusting the groove; 8. an adjustment aperture; 9. a convex portion; 9.1, a third abutting portion; 9.2, a fourth abutment; 10. a first chute; 11. a damping structure; 12. a passive alarm mechanism; 13. a first sound emitting sheet; 14. a second sound producing piece; 15. a reciprocating drive mechanism; 16. a driving motor; 17. a threaded rod; 18. a passive cleaning mechanism; 19. a transmission block; 19.1, a first abutment; 19.2, a second abutment; 19.3, fifth abutment; 19.4, a connection; 20. a transmission rod; 21. a guide ring; 22. a housing; 23. an extrusion plate; 24. an elastic air bag; 24.1, connecting pipes; 24.2, shunt; 25. an air outlet; 26. a filter screen; 27. a return spring; 28. a sleeve; 29. a piston; 30. a collar; 31. a rotating shaft; 32. a gear; 33. a toothed plate; 34. a turntable; 35. a connecting rod; 36. and a second chute.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
In the embodiments provided in the present invention, for convenience of description, the striking rod 1.1 is referred to as being upward toward the axial direction of the rebound apparatus 1, and vice versa.
Referring to fig. 1-7, an embodiment of the invention provides an intelligent concrete strength detection device, which comprises a resiliometer 1 and a bracket 2, wherein an abutting surface 2.1 for abutting against a wall surface to be measured is arranged on the bracket 2, a plurality of pressure sensors 3 are arranged on the abutting surface 2.1, the resiliometer 1 is movably connected to the bracket 2, and a calibration plate 4 for adjusting the impact angle between a striking rod 1.1 and the wall surface to be measured is fixedly connected to the bracket 2; the calibration plate 4 is provided with a calibration through hole 5 through which the striking rod 1.1 can pass.
Specifically, the basic principle of the resiliometer 1 is that a spring is used to drive a heavy hammer, the heavy hammer impacts a striking rod 1.1 vertically contacted with the concrete surface with constant kinetic energy, so that partial concrete is deformed 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 heavy hammer rebounds to reach the maximum distance, the instrument displays the maximum rebound distance of the heavy hammer on the basis of the rebound value, which is not repeated in the prior art, one of the innovation points of the invention is that a bracket 2 is provided, the bracket 2 comprises an abutting surface 2.1 and a top plate 2.3, a plurality of connecting rods 2.2 are fixedly connected between the top plate 2.3 and the abutting surface 2.1, the top plate 2.3 is positioned at the top end of the connecting rod 2.2, the abutting surface 2.1 is positioned at the bottom end of the connecting rod 2.2, a handheld part 2.4 is fixedly connected on the top plate 2.3, the abutting surface 2.1 is preferably square and annular, the calibration plate 4 is fixedly connected to the bottom end of the bracket 2, that is, fixedly connected to the inner side of the abutting surface 2.1, the pressure sensors 3 (not shown in the figure) should be not less than three and preferably not four, and are uniformly arranged in an array on the abutting surface 2.1, so that the effect of the arrangement is that when the wall surface to be measured is measured, since the resiliometer 1 is installed in the bracket 2, and a plurality of pressure sensors 3 are arranged at the bottom end of the bracket 2, when the values of the plurality of pressure sensors 3 are consistent or basically consistent, the abutting surface 2.1 is tightly attached to the wall surface to be measured, that is, the bracket 2 is kept vertical to the wall surface to be measured, since the calibration through holes 5 on the calibration plate 4 are coaxially arranged with the bracket 2, the flicking rod 1.1 passing through the calibration through holes 5 is also kept vertical to the wall surface to be measured, so that the flicking rod 1.1 can be vertically contacted with the wall surface to be measured, the accuracy of the measured values is ensured.
Further, the calibration through hole 5 is provided with a guide section 5.1 and a limit section 5.2, and the position of the calibration through hole 5 corresponds to the position of the flick rod 1.1, namely, the calibration through hole 5 is arranged right below the flick rod 1.1, the guide section 5.1 is in a horn shape, the limit section 5.2 is in a cylinder shape, the radial dimension of the limit section 5.2 is slightly larger than that of the flick rod 1.1, and interference fit is achieved between the two.
Preferably, the universal cylinder 6 is fixedly connected to the resiliometer 1, the inner side of the bracket 2 is slidably connected with the sliding block 7, the adjusting hole 8 adapted to the universal cylinder 6 is formed in the sliding block 7, the universal cylinder 6 is rotationally connected with the adjusting hole 8, specifically, the universal cylinder 6 is a sphere or an ellipsoid, the inside of the universal cylinder 6 is hollow, the universal cylinder 6 can rotate in multiple directions in the adjusting hole 8, but cannot move horizontally or vertically, so that the limiting effect can be achieved, the sliding block 7 is square, a convex part 9 is arranged on the periphery of the sliding block 7, a first sliding groove 10 is formed in the connecting rod 2.2, the convex part 9 can slide along the first sliding groove 10, and therefore the distance between the resiliometer 1 and a wall to be detected can be adjusted.
Further, the outer side wall of the universal cylinder 6 and the inner side wall of the adjusting hole 8 are both provided with damping structures 11, so that the damping structures 11 have certain resistance when the universal cylinder 6 rotates along the adjusting hole 8, and the universal cylinder 6 cannot rotate relative to the adjusting hole 8 when not receiving a large acting force, so that the stability of the resiliometer 1 in use under normal conditions is guaranteed.
Preferably, a passive alarm mechanism 12 is disposed between the adjusting hole 8 and the universal cylinder 6, the passive alarm mechanism 12 includes a first sounding sheet 13 and a second sounding sheet 14, the first sounding sheet 13 is fixedly connected to the outer side wall of the universal cylinder 6, the second sounding sheet 14 is fixedly connected to the inner side wall of the adjusting hole 8, the first sounding sheet 13 and the second sounding sheet 14 rub to generate loud friction sound, which is an alarm sound, specifically, a damping structure 11 such as an elastic friction pad is disposed in the middle area on the outer wall of the universal cylinder, the first sounding sheet 13 and the second sounding sheet 14 are disposed on the upper and lower sides of the damping structure, when the damping structure 11 rubs, the first sounding sheet 13 and the second sounding sheet 14 rub synchronously, the first sounding sheet 13 and the second sounding sheet 14 are both in the prior art, and when various metal pieces rub, when the striking rod 1.1 contacts the inner wall of the guide section 5.1, the universal barrel 6 and the adjusting hole 8 are rotated relatively, so that the first sounding sheet 13 and the second sounding sheet 14 generate friction to generate alarm sound, when the alarm sound is short in duration, the alarm sound is normal, namely, when the bottom end of the striking rod 1.1 contacts the inner wall of the guide section 5.1 (namely, when the inclination angle of the striking rod 1.1 is small), then the striking angle of the striking rod 1.1 is regulated by the limiting section 5.2, when the alarm sound is long in duration, the striking rod 1.1 cannot pass through the adjusting hole, namely, the striking rod 1.1 is abutted against the upper surface of the adjusting plate 4 (except the adjusting through hole 5), and when the abutting angle is oblique (and when the inclination angle of the striking rod 1.1 is large), under the abutting condition, the bottom of bullet hits pole 1.1 can slide along the upper surface of calibrating board 4 towards the direction of keeping away from calibration through-hole 5, because this gliding distance is greater than the gliding distance of bullet hit pole 1.1 and direction section 5.1 inside wall for the whole rotation of great range of resiliometer 1, thereby make the friction distance of first sound piece 13 and second sound piece 14 grow, thereby send long warning sound, promptly resiliometer 1 has appeared serious slope, and the staff needs in time to overhaul the device this moment.
In this embodiment, it is obvious that the first sounding sheet 13 and the second sounding sheet 14 are both a part of the spherical member, and are the outer peripheral surface after a sphere is cut through two parallel surfaces, in a preferred embodiment, one of the first sounding sheet 13 and the second sounding sheet 14 is provided with an annular protrusion, and the other one is provided with an annular groove, the annular protrusion is slidably abutted to the bottom wall of the annular groove, and the two are in transition fit, but the annular protrusion is in interference fit with other areas of the first sounding sheet 13 or the second sounding sheet 14 where the annular groove is not provided, the width of the annular groove is more than eight times of the width of the annular protrusion, so that when the bottom end of the striking rod 1.1 contacts the inner side wall of the guide section 5.1 (i.e. when the inclination angle of the striking rod 1.1 is smaller), and then when the striking angle of the striking rod 1.1 is self-adjusted via the limiting section 5.2, the annular bulge slides in the annular groove, and the friction sound part of the annular bulge slides in the annular groove, but when the flick rod 1.1 cannot pass through the calibration hole, namely the flick rod 1.1 is abutted with the upper surface of the calibration plate 4 (except the calibration through hole 5), and the abutted angle is inclined (and the inclined angle of the flick rod 1.1 is larger at the moment), the bottom end of the flick rod 1.1 slides along the upper surface of the calibration plate 4 in a direction away from the calibration through hole 5 under the abutting condition, because the sliding distance is far greater than the sliding distance between the flick rod 1.1 and the inner side wall of the guide section 5.1, the annular bulge can strike the side wall of the annular groove even by deforming beyond the annular groove, obviously, the interference fit is formed by transition fit at the moment, an offensive noise is emitted.
Further, the resiliometer 1 has advantages in that compared with the resiliometer 1 and the slider 7 fixed connection mode, the resiliometer 1 is movably connected with the slider 7 through the universal cylinder 6, in the fixed connection state, the inclination to a certain extent still can occur under the abrasion of the convex part 9 and the first chute 10 or other factors, due to the fixed connection, the inclination can not be automatically calibrated, and the resiliometer 1 is not easily found by a worker when being inclined, so that the accurate measurement of the concrete strength can not be ensured, the movable connection is not high in stability of the fixed connection, but has an automatic adjusting function when the resiliometer 1 is inclined by a small extent, the accurate measurement of the concrete strength is ensured, and in addition, the resiliometer 1 can automatically alarm in time when being inclined seriously, so that the worker can be overhauled in time.
Preferably, the device further comprises a reciprocating driving mechanism 15 for providing impact force of the resiliometer 1, the reciprocating driving mechanism 15 comprises a driving motor 16 and a threaded rod 17 fixedly connected with the output end of the driving motor 16, the driving motor 16 is fixedly connected to the inner side wall of the support 2, a threaded hole matched with the threaded rod 17 is formed in the sliding block 7, the threaded rod 17 is in threaded connection with the threaded hole, specifically, the driving motor 16 is fixedly connected to the connecting rod 2.2, the driving motor 16 is started, the driving motor 16 drives the threaded rod 17 at the output end of the driving motor 16 to rotate, and the sliding block 7 can vertically reciprocate along the first sliding groove 10 under the action of the threaded rod 17 and the threaded hole in the sliding block 7.
As another embodiment of the present invention, the reciprocating driving mechanism 15 may be a cylinder (not shown in the drawing) directly driven, the cylinder is fixedly connected to the top plate 2.3 or the connecting rod 2.2, the output end is directly fixedly connected to the sliding block 7, and the sliding block 7 can be controlled to reciprocate along the first sliding groove 10 by controlling the expansion and contraction of the driving rod.
Preferably, the support 2 is provided with a passive cleaning mechanism 18, the passive cleaning mechanism 18 includes a transmission block 19 and a transmission rod 20, the transmission block 19 is slidably connected with the support 2, the support 2 is fixedly connected with a guide ring 21 and a housing 22, the housing 22 is slidably connected with a squeeze plate 23, the transmission rod 20 is fixedly connected with the squeeze plate 23 and slidably connected with the guide ring 21, two ends of the transmission block 19 are respectively abutted with the slide block 7 and the transmission rod 20, an elastic air bag 24 is arranged between the squeeze plate 23 and the housing 22, the support 2 is provided with a plurality of air outlets 25, the elastic air bag 24 is communicated with the air outlets 25, specifically, the passive cleaning mechanism 18 is provided with two air outlets symmetrically arranged on two sides of the support 2, the transmission block 19 is provided with a first abutting part 19.1 and a second abutting part 19.2, on the travel of the protruding part 9, the protruding part 9 is provided with a third abutting part 9.1, the shell 22 is fixedly connected to the joint of the connecting rod 2.2 and the abutting surface 2.1, the elastic air bag 24 is installed inside the shell 22 through the connecting pipe 24.1, the shunt pipe 24.2 is arranged between the connecting pipe 24.1 and the air outlet 25, the extrusion plate 23 can vertically slide along the inner side wall of the shell 22 and is abutted with the elastic air bag 24, the transmission rod 20 is fixedly connected to the top end of the extrusion plate 23, and the top end of the transmission rod is provided with a wedge-shaped surface, the arrangement is that the driving motor 16 drives the sliding block 7 to vertically move and simultaneously drives the protruding part 9 to move along the first sliding groove 10, when the third abutting part 9.1 is contacted with the first abutting part 19.1 and extruded, the transmission block 19 is driven to horizontally move, so that the second abutting part 19.2 of the transmission block 19 is contacted with the wedge-shaped surface at the top end of the transmission rod 20 and extruded, the transmission rod 20 can move downwards along the guide ring 21, the extrusion plate 23 at the bottom end of the extrusion plate is driven to move downwards along the shell 22 and extrude the elastic air bag 24, after the elastic air bag 24 is extruded, air in the elastic air bag is conveyed to the air outlet 25 through the connecting pipe 24.1 and the shunt pipe 24.2, so that impurities on the wall surface can be blown before the impact rod 1.1 contacts the wall surface to be measured, the function of automatic cleaning is realized, and the effect that the impurities on the wall surface influence the detection result of the concrete strength is avoided.
Further, the transmission block 19 is provided with a connection portion 19.4, the connection portion 19.4 is elastically connected with the support 2, specifically, the connection portion 19.4 is fixedly connected to the upper surface of the transmission block 19, a return spring 27 is disposed between the connection portion 19.4 and the connection rod 2.2, two ends of the return spring 27 are fixedly connected with the connection rod 2.2 and the connection portion 19.4 respectively, and the effect of the arrangement is that when the third abutting portion 9.1 contacts and presses the first abutting portion 19.1, the return spring 27 and the elastic air bag 24 are compressed, after the third abutting portion 9.1 abuts against the first abutting portion 19.1, namely, the acting force of the third abutting portion 9.1 on the first abutting portion 19.1 disappears, at this time, the elastic force of the return spring 27 is released, so that the transmission block 19 can move reversely, thereby realizing automatic return of the transmission block 19, the abutting effect of the second abutting portion 19.2 on the transmission rod 20 disappears, and the transmission rod 20 moves automatically under the elastic action of the elastic air bag 24 itself, thereby realizing return to the transmission rod 20.
Further, the filter screen 26 is fixedly connected to the air outlets 25, so that the air suction effect can be achieved when the elastic air bag 24 is restored, the filter screen 26 can block impurities outside the air outlets 25 in the air suction process of the elastic air bag 24, and impurities can be effectively prevented from entering the elastic air bag 24 from the air outlets 25.
Further, the protruding portion 9 further includes a fourth abutting portion 9.2, the driving rod 20 further includes a fifth abutting portion 19.3, the fifth abutting portion 19.3 is located on a movement stroke of the fourth abutting portion 9.2, specifically, the fourth abutting portion 9.2 is disposed at a top end of the protruding portion 9, the fifth abutting portion 19.3 is located at a bottom end of the driving block 19, and the effect of the arrangement is that after the rebound apparatus 1 detects a detection area, the driving motor 16 is reversed, so that the sliding block 7 is driven to move reversely, and in a process of returning the sliding block 7, the fourth abutting portion 9.2 of the protruding portion 9 contacts with the fifth abutting portion 19.3 of the driving block 19 and extrudes, so that the driving block 19 moves horizontally, and the elastic air bag 24 is extruded, air inside the elastic air bag 24 can be blown out from the air outlet 25, and impurities attached to the filtering screen 26 can be blown away, automatic cleaning of the filtering screen 26 is achieved, and blocking of the filtering screen 26 is avoided.
Further, in the process of returning the sliding block 7, the bracket 2 is far away from the wall surface, that is, the automatic cleaning process of the filter screen 26 occurs at a position far away from the wall surface to be measured, so that impurities on the filter screen 26 are prevented from being blown onto the wall surface again.
As another embodiment of the present invention (as shown in fig. 8), preferably, the slider 7 includes an inner block 7.1 and an annular outer shell 7.2, the inner block 7.1 is sleeved in the outer shell 7.2, a cross rod 7.3 is connected in a sliding manner and penetrates through the inner block 7.1, two adjusting grooves 7.4 are formed in the inner side wall of the outer shell 7.2, two ends of the cross rod 7.3 protrude out of the inner block 7.1 and are respectively connected with the two adjusting grooves 7.4 in a sliding manner, a distance is formed between the end of the cross rod 7.3 and the bottom wall of the adjusting groove 7.4, so that the cross rod can move substantially along the direction of the adjusting groove 7.4, and also can move in the direction of the cross rod, in particular, a gap is formed between the inner block 7.1 and the outer shell 7.2, the cross rod 7.3 is preferably two, the two adjusting grooves are respectively arranged on two sides of the inner block 7.1, the two adjusting grooves 7.4 are symmetrically arranged on the inner side wall, the two ends of the cross rod 7.3 are respectively arranged along the direction X direction, the cross rod 7.3 are respectively arranged on the two sides of the inner block 7.1, the Y direction is opposite to the inner side wall 7.1, and the Y direction is arranged on the inner side wall 1, and the Y direction is opposite to the inner side wall 1, and the Y direction 1 is arranged on the inner side wall, and the inner side 1 and the Y side 1 is opposite to the inner side and the inner wall and the inner side 7.1.
Further, the cross rod 7.3 is connected with the inner block 7.1 and the adjusting groove 7.4 in a damping manner, so that certain external force is required when the inner block 7.1 and the outer shell 7.2 relatively move, and stability of the resiliometer 1 in use under normal conditions is ensured.
As another embodiment of the present invention (as shown in fig. 9), the passive cleaning mechanism 18 includes a sleeve 28 disposed on the support 2 and a piston 29 slidably connected with the sleeve 28, a toothed plate 33 is fixedly connected to the protrusion 9, a collar 30 is fixedly connected to the connecting rod 2.2, a rotating shaft 31 is rotatably connected to the collar 30, a gear 32 and a turntable 34 are fixedly connected to two ends of the rotating shaft 31, the gear 32 is meshed with the toothed plate 33, a connecting rod 35 is movably connected between the turntable 34 and the piston 29, specifically, a second sliding groove 36 adapted to the protrusion 9 and the toothed plate 33 is provided in the connecting rod 2.2, so that the protrusion 9 and the toothed plate 33 can slide vertically along the second sliding groove 36, a circular ring is fixedly connected to a side wall of the connecting rod 2.2 at one end of the collar 30, and the rotating shaft is rotatably connected to the circular ring at the other end, the rotary table 34 is fixedly connected with a fixed shaft at a position deviating from the circle center, a hinge seat is fixedly connected at the top of the piston, two ends of a connecting rod 35 are respectively connected with the fixed shaft and the hinge seat in a rotating way, the driving motor 16 drives the convex part 9 to move towards the wall surface to be measured and simultaneously drives the toothed plate 33 to move, the toothed plate 33 is meshed with the gear 32 to drive the gear 32 to rotate, the gear 32 is fixedly connected with the rotary table 34 through a rotary shaft 31 to drive the rotary table 34 to synchronously rotate with the gear 32 so as to drive the fixed shaft to rotate around the circle center of the rotary table 34, the connecting rod 35 is arranged between the fixed shaft and the hinge seat so as to drive the piston 29 to move up and down along the sleeve 28, the piston 29 continuously extrudes air in the sleeve 28, and gas in the sleeve 28 is blown onto the wall surface to be measured through the air outlet 25, therefore, the impurity on the wall surface can be blown for multiple times before the flick rod 1.1 contacts the wall surface to be measured, the function of automatic cleaning is realized, and the effect of the impurity on the wall surface on the result of concrete strength detection is avoided.
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 modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (5)
1. The intelligent concrete strength detection device comprises a resiliometer and is characterized by further comprising a support, wherein an abutting surface for abutting on a wall surface to be measured is arranged on the support, a plurality of pressure sensors are arranged on the abutting surface, the resiliometer is movably connected to the support, and a calibration plate for adjusting the impact angle between an impact rod and the wall surface to be measured is fixedly connected to the support;
the calibration plate is provided with a calibration through hole through which the bullet striking rod can pass;
the resiliometer is fixedly connected with a universal cylinder, the inner side of the bracket is connected with a sliding block in a sliding way, an adjusting hole matched with the universal cylinder is formed in the sliding block, and the universal cylinder is rotationally connected with the adjusting hole;
the device comprises a support, a driven cleaning mechanism, a guide ring, a shell, a pressing plate, a connecting part, an elastic air bag, a filter screen, a connecting part and a support, wherein the support is provided with the driven cleaning mechanism, the driven cleaning mechanism comprises a transmission block and a transmission rod, the transmission block is in sliding connection with the support, the support is fixedly connected with the guide ring and the shell, the pressing plate is in sliding connection with the transmission rod, the two ends of the transmission block are respectively abutted with the sliding block and the transmission rod, the elastic air bag is arranged between the pressing plate and the shell, the support is provided with a plurality of air outlets, the elastic air bag is communicated with the air outlets, the filter screen is fixedly connected to the air outlets, and the connecting part is elastically connected with the support;
the transmission block is provided with a first abutting part and a second abutting part, the convex part is provided with a third abutting part, the transmission rod is fixedly connected to the top end of the extrusion plate, the top end of the transmission rod is provided with a wedge-shaped surface, the transmission block is provided with a connecting part, the connecting part is elastically connected with the bracket, the connecting part is fixedly connected to the upper surface of the transmission block, a reset spring is arranged between the connecting part and the connecting rod, two ends of the reset spring are fixedly connected with the connecting rod and the connecting part respectively, the convex part further comprises a fourth abutting part, the transmission block further comprises a fifth abutting part, the fifth abutting part is positioned on the movement stroke of the fourth abutting part, the fourth abutting part is arranged at the top end of the convex part, and the fifth abutting part is positioned at the bottom end of the transmission block;
the device comprises a regulating hole, a universal barrel, a first sounding sheet, a second sounding sheet, a first sounding sheet and a second sounding sheet, wherein the first sounding sheet is fixedly connected to the outer side wall of the universal barrel, the second sounding sheet is fixedly connected to the inner side wall of the regulating hole, the first sounding sheet and the second sounding sheet rub to generate loud friction sound, the alarm sound is generated, the first sounding sheet and the second sounding sheet are both in the prior art, all metal pieces rub to generate sound when the impact rod contacts the inner wall of a guide section, the universal barrel and the regulating hole are enabled to generate relative rotation, the first sounding sheet and the second sounding sheet are enabled to generate friction to generate alarm sound, when the alarm sound duration is short, the alarm sound is a normal phenomenon, the bottom end of the impact rod is contacted with the inner side wall of the guide section, namely, the inclination angle of the impact rod is small, the impact rod is self-adjusted through the limit section, when the alarm sound duration is long, the impact rod cannot pass through the calibration hole, namely, the impact rod and the impact rod is in contact with the upper surface of the calibration plate, and the impact rod is in a large contact range with the inclined angle of the impact rod, and the impact rod is far away from the inner side wall of the guide section, and the impact rod is enabled to be far away from the whole sliding device, and the impact rod is enabled to rotate, and the impact rod is enabled to have a large contact range with the impact rod is in a sliding range, and has a large contact range with the impact rod is in the sliding range is caused to rotate, and has a large impact range has a sliding range;
the appearance of first sound producing piece and second sound producing piece is the part of spherical, for intercepting the outer peripheral surface behind a spheroid through two parallel surfaces, be provided with an annular bulge on one of first sound producing piece and second sound producing piece, and be provided with an annular groove on the other, annular bulge sliding butt is on the diapire of annular groove, both transition fit, but annular bulge and other regional interference fit that do not set up annular groove on first sound producing piece or the second sound producing piece, annular groove's width is more than eight times of annular bulge's width, the bottom of striking rod contacts the guide section inside wall at the moment, the inclination of striking rod is less at this moment, then the annular bulge slides in annular groove when the striking angle of striking rod is adjusted by oneself through the spacing section, the friction sound part of both moment comes from annular bulge sliding in annular groove, but the striking rod has been unable to pass through from the calibrated hole this moment, namely the striking rod is in abutment with the upper surface of calibrated plate, and the angle of abutment is the slope, and the angle of striking is great in the angle of striking rod, the angle of striking rod is more than eight times the width of annular bulge, the bottom of striking rod contacts the guide section inside wall along the inclined direction of the annular groove, the side wall is formed by the sliding fit, the impact distance is far away from the annular bulge along the side wall of the sliding transition of the side wall of the annular bulge;
the slider includes inside block and annular outside casing, inside block endotheca in outside casing, inside block inside sliding connection who runs through has the horizontal pole, two adjustment tanks have been seted up to outside casing inside wall, horizontal pole both ends protrusion in inside block and respectively with two adjustment tanks sliding connection, have a distance between the diapire of horizontal pole tip and adjustment tank, so the horizontal pole can be by a wide margin along the direction removal of adjustment tank, also can carry out the removal in above-mentioned distance range in the direction of horizontal pole, have the clearance between inside block and the outside casing, the horizontal pole has two, arrange respectively in the both sides of inside block, and set up about the universal cylinder symmetry, decide inside block along the gliding direction of horizontal pole for X direction, the horizontal pole is Y direction along the gliding direction of adjustment tank, and X direction is in same horizontal plane with Y direction, and mutually perpendicular, can slide relatively between inside block and the outside casing when the butt of stretch the bottom of the pole and guide section inside wall, thereby can adjust the horizontal position of resiliometer simultaneously when adjusting resiliometer inclination.
2. The intelligent concrete strength detection device according to claim 1, wherein the calibration plate is fixedly connected to the bottom end of the support, the calibration through hole is provided with a guide section and a limit section, and the position of the calibration through hole is corresponding to the position of the striking rod.
3. The intelligent concrete strength detection device according to claim 1, wherein the pressure sensors are not less than three and are uniformly arranged in an array on the abutting surface.
4. The intelligent concrete strength detection device according to claim 1, wherein damping structures are arranged on the outer side wall of the universal cylinder and the inner side wall of the adjusting hole.
5. The intelligent concrete strength detection device according to claim 1, further comprising a reciprocating driving mechanism for providing impact force of the resiliometer, wherein the reciprocating driving mechanism comprises a driving motor and a threaded rod fixedly connected with the output end of the driving motor, the driving motor is fixedly connected to the inner side wall of the bracket, a threaded hole matched with the threaded rod is formed in the sliding block, and the threaded rod is in threaded connection with the threaded hole.
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Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1202000A (en) * | 1957-09-04 | 1960-01-07 | Laycock Eng Ltd | Universal joint drive shaft |
| US5912733A (en) * | 1997-11-05 | 1999-06-15 | Dunlop; Ronald | Laser plumb line |
| JP2008144914A (en) * | 2006-12-12 | 2008-06-26 | Toyota Motor Corp | Wear alarm device of disk brake device |
| KR20110005020A (en) * | 2009-07-09 | 2011-01-17 | 한국델파이주식회사 | Interm shaft for steering device of vehicle |
| CN206648904U (en) * | 2016-12-29 | 2017-11-17 | 浙江嘉宇建设有限公司 | A kind of reisilometer calibrated automatically |
| CN109917158A (en) * | 2019-02-18 | 2019-06-21 | 湖南悟空信息科技有限公司 | Bearing device is used in a kind of detection of electronic product |
| CN209264474U (en) * | 2018-11-07 | 2019-08-16 | 宁波交通工程咨询监理有限公司 | A kind of laser-calibrated reisilometer |
| CN111122364A (en) * | 2019-12-23 | 2020-05-08 | 苏州希纳斯设备科技有限公司 | Concrete hardness detection equipment |
| CN210487754U (en) * | 2019-08-14 | 2020-05-08 | 山东贝塔环境检测技术有限公司 | Portable water quality testing device |
| CN111536173A (en) * | 2020-05-06 | 2020-08-14 | 一汽解放汽车有限公司 | Brake shoe mechanism and brake device |
| CN211627254U (en) * | 2020-03-23 | 2020-10-02 | 李剑清 | Building engineering concrete strength detector |
| CN112304793A (en) * | 2020-11-26 | 2021-02-02 | 山东省水利工程试验中心有限公司 | Hydraulic engineering is with small-size portable concrete intensity detection device |
| CN212658205U (en) * | 2020-08-05 | 2021-03-05 | 高建慧 | Crack visualizer for supervision |
| CN112476104A (en) * | 2020-11-04 | 2021-03-12 | 杭州晗沂科技有限公司 | Integrated circuit processing is with burr removal component of utilizing air current to clear up impurity |
| CN212822182U (en) * | 2020-07-01 | 2021-03-30 | 威海和威精密模具有限公司 | Metal stamping die |
| CN213068534U (en) * | 2020-09-09 | 2021-04-27 | 江西省通途路桥工程有限公司 | Bridge detects with portable mortar resiliometer |
| CN213239806U (en) * | 2020-10-13 | 2021-05-18 | 河北东方生华建筑仪器有限公司 | Novel resiliometer |
| CN113012959A (en) * | 2021-02-23 | 2021-06-22 | 上海柘中电气有限公司 | Visual intelligent cabinet |
| CN213600524U (en) * | 2020-11-30 | 2021-07-02 | 孙秋颖 | Concrete resilience survey area arranges appearance |
| CN113368344A (en) * | 2021-05-26 | 2021-09-10 | 宁波易舒医疗科技有限公司 | Axial driving mechanism, automatic injection device and using method thereof |
| CN214717704U (en) * | 2021-03-01 | 2021-11-16 | 贵州远东传动机械有限公司 | Transmission shaft paint spraying apparatus |
| CN215003972U (en) * | 2021-07-12 | 2021-12-03 | 中广核新能源(宣城)有限公司 | Thermoscope mounting, thermoscope and temperature measurement system |
| CN215727452U (en) * | 2021-08-27 | 2022-02-01 | 苏州如轶新材料科技有限公司 | UHPC (ultra high Performance polycarbonate) on-site compressive strength and elastic modulus measuring instrument |
| CN114216768A (en) * | 2021-12-01 | 2022-03-22 | 李世芳 | Building insulation material tensile compression performance detection equipment |
| CN216522612U (en) * | 2021-12-14 | 2022-05-13 | 无锡市爱迪安科技有限公司 | Fixed-position large-screen integrated refrigerator panel |
| CN216675342U (en) * | 2021-12-13 | 2022-06-07 | 德州恒昌医疗科技有限公司 | Rotary multifunctional glove display stand |
| CN216791917U (en) * | 2021-11-01 | 2022-06-21 | 河北壹家工程检测有限公司 | Concrete pressure detection device |
| CN114651566A (en) * | 2022-04-11 | 2022-06-24 | 新昌县立诺智能科技有限公司 | A intelligent planting equipment for lake river course ecological remediation |
| CN114659876A (en) * | 2022-02-11 | 2022-06-24 | 广西建宏工程科技有限公司 | Concrete compressive strength detection device |
| CN217180434U (en) * | 2022-01-26 | 2022-08-12 | 烟台建正建设工程检测有限公司 | Concrete compressive strength detects uses digital resiliometer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232797A1 (en) * | 2019-05-21 | 2020-11-26 | 佛山市顺德区美的电热电器制造有限公司 | Exhaust assembly, upper cover assembly, and cooking device |
-
2022
- 2022-10-28 CN CN202211333751.6A patent/CN115524248B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1202000A (en) * | 1957-09-04 | 1960-01-07 | Laycock Eng Ltd | Universal joint drive shaft |
| US5912733A (en) * | 1997-11-05 | 1999-06-15 | Dunlop; Ronald | Laser plumb line |
| JP2008144914A (en) * | 2006-12-12 | 2008-06-26 | Toyota Motor Corp | Wear alarm device of disk brake device |
| KR20110005020A (en) * | 2009-07-09 | 2011-01-17 | 한국델파이주식회사 | Interm shaft for steering device of vehicle |
| CN206648904U (en) * | 2016-12-29 | 2017-11-17 | 浙江嘉宇建设有限公司 | A kind of reisilometer calibrated automatically |
| CN209264474U (en) * | 2018-11-07 | 2019-08-16 | 宁波交通工程咨询监理有限公司 | A kind of laser-calibrated reisilometer |
| CN109917158A (en) * | 2019-02-18 | 2019-06-21 | 湖南悟空信息科技有限公司 | Bearing device is used in a kind of detection of electronic product |
| CN210487754U (en) * | 2019-08-14 | 2020-05-08 | 山东贝塔环境检测技术有限公司 | Portable water quality testing device |
| CN111122364A (en) * | 2019-12-23 | 2020-05-08 | 苏州希纳斯设备科技有限公司 | Concrete hardness detection equipment |
| CN211627254U (en) * | 2020-03-23 | 2020-10-02 | 李剑清 | Building engineering concrete strength detector |
| CN111536173A (en) * | 2020-05-06 | 2020-08-14 | 一汽解放汽车有限公司 | Brake shoe mechanism and brake device |
| CN212822182U (en) * | 2020-07-01 | 2021-03-30 | 威海和威精密模具有限公司 | Metal stamping die |
| CN212658205U (en) * | 2020-08-05 | 2021-03-05 | 高建慧 | Crack visualizer for supervision |
| CN213068534U (en) * | 2020-09-09 | 2021-04-27 | 江西省通途路桥工程有限公司 | Bridge detects with portable mortar resiliometer |
| CN213239806U (en) * | 2020-10-13 | 2021-05-18 | 河北东方生华建筑仪器有限公司 | Novel resiliometer |
| CN112476104A (en) * | 2020-11-04 | 2021-03-12 | 杭州晗沂科技有限公司 | Integrated circuit processing is with burr removal component of utilizing air current to clear up impurity |
| CN112304793A (en) * | 2020-11-26 | 2021-02-02 | 山东省水利工程试验中心有限公司 | Hydraulic engineering is with small-size portable concrete intensity detection device |
| CN213600524U (en) * | 2020-11-30 | 2021-07-02 | 孙秋颖 | Concrete resilience survey area arranges appearance |
| CN113012959A (en) * | 2021-02-23 | 2021-06-22 | 上海柘中电气有限公司 | Visual intelligent cabinet |
| CN214717704U (en) * | 2021-03-01 | 2021-11-16 | 贵州远东传动机械有限公司 | Transmission shaft paint spraying apparatus |
| CN113368344A (en) * | 2021-05-26 | 2021-09-10 | 宁波易舒医疗科技有限公司 | Axial driving mechanism, automatic injection device and using method thereof |
| CN215003972U (en) * | 2021-07-12 | 2021-12-03 | 中广核新能源(宣城)有限公司 | Thermoscope mounting, thermoscope and temperature measurement system |
| CN215727452U (en) * | 2021-08-27 | 2022-02-01 | 苏州如轶新材料科技有限公司 | UHPC (ultra high Performance polycarbonate) on-site compressive strength and elastic modulus measuring instrument |
| CN216791917U (en) * | 2021-11-01 | 2022-06-21 | 河北壹家工程检测有限公司 | Concrete pressure detection device |
| CN114216768A (en) * | 2021-12-01 | 2022-03-22 | 李世芳 | Building insulation material tensile compression performance detection equipment |
| CN216675342U (en) * | 2021-12-13 | 2022-06-07 | 德州恒昌医疗科技有限公司 | Rotary multifunctional glove display stand |
| CN216522612U (en) * | 2021-12-14 | 2022-05-13 | 无锡市爱迪安科技有限公司 | Fixed-position large-screen integrated refrigerator panel |
| CN217180434U (en) * | 2022-01-26 | 2022-08-12 | 烟台建正建设工程检测有限公司 | Concrete compressive strength detects uses digital resiliometer |
| CN114659876A (en) * | 2022-02-11 | 2022-06-24 | 广西建宏工程科技有限公司 | Concrete compressive strength detection device |
| CN114651566A (en) * | 2022-04-11 | 2022-06-24 | 新昌县立诺智能科技有限公司 | A intelligent planting equipment for lake river course ecological remediation |
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