CN116297852A - Ultrasonic detector for concrete defect - Google Patents

Abstract

The utility model relates to the technical field of concrete detection, and discloses a concrete defect ultrasonic detector which comprises a detector body, a power line, a detection sonar tube, a detection sleeve and a supporting mechanism arranged outside the detection sleeve and used for supporting the detection sleeve, wherein a plurality of adjusting mechanisms used for enabling the power line to be positioned at the center of a hole are arranged at the bottom of the detection sleeve, each adjusting mechanism comprises a pressing square cylinder fixed on the bottom surface of the detection sleeve, an adjusting inclined block horizontally sliding and arranged in the pressing square cylinder, and a pressing straight rod fixed on the side wall of the adjusting inclined block, which is away from the detection sleeve, the end part of the pressing straight rod, which is away from the detection sleeve, penetrates out of the pressing square cylinder and is fixed with an arc curved plate, and a driving mechanism used for driving the adjusting inclined block to move is arranged outside the detection sleeve. The application has the effect of improving that the sonar pipe is difficult to keep in the middle of drilling, causes certain influence to the result of test.

Description

Ultrasonic detector for concrete defect

Technical Field

The utility model relates to the technical field of concrete detection, in particular to an ultrasonic detector for concrete defects.

Background

The ultrasonic detection method is the most commonly used method for detecting the quality of a concrete pile foundation, two, three or four parallel sounding pipes are pre-buried in the pile foundation, probes are placed in each sounding pipe, the probes are firstly placed at the bottom of the sounding pipe, water is filled in the sounding pipe to serve as a coupling medium, the probes are pulled by using counting pulleys, and a receiving probe of the probe including a transmitting probe synchronously moves upwards in the sounding pipe to detect the defect of the pile foundation.

For example, the Chinese patent publication No. CN210321994U discloses a protection device for a sound tube of an ultrasonic detector, which comprises a detector and a sound tube extending into a borehole, an electric wire fixedly connected with one end of the sound tube, and the other end of the electric wire is spliced with the detector. The outer wall of the sound measuring tube is provided with a protection tube, the protection tube comprises a first circular tube and a second circular tube, and one ends of the side walls of the first circular tube and the second circular tube are hinged with each other. The first round tube and the second round tube are provided with a threaded groove at the other end of the side wall, the threaded groove is connected with the first round tube and the second round tube, a screw is connected in the threaded groove in a threaded manner, and a compression spring I is fixedly connected between the inner wall and the outer wall of the protection tube.

With respect to the above related art, the inventor considers that when the protection device of the sound tube of the ultrasonic detector is placed inside a borehole, the sonar tube is protected by the protection tube so as to be placed inside the borehole, and when the sonar tube is placed inside the borehole, the sonar tube needs to be kept at the middle position of the borehole, but when the protection device of the sound tube of the ultrasonic detector is tested, the sonar tube is difficult to be kept in the middle of the borehole, and a certain influence is caused on the test result.

Disclosure of Invention

In order to improve the problem that the sonar tube is difficult to maintain in the middle of a drilled hole and has a certain influence on the test result, the application provides a concrete defect ultrasonic detector.

The application provides a concrete defect ultrasonic detector adopts following technical scheme:

the utility model provides a concrete defect ultrasonic detector, includes detector body, power cord, detection sonar pipe, detection sleeve and set up in the detection sleeve outside is used for supporting detection sleeve's supporting mechanism, detection sleeve bottom is provided with a plurality of and is used for making the power cord is in the adjustment mechanism at entrance to a cave center, adjustment mechanism including be fixed in the detection sleeve bottom surface support pressure square tube, the level slide set up in support pressure square tube inside regulation oblique block and be fixed in the regulation oblique block deviates from support pressure straight bar of detection sleeve's lateral wall, support pressure straight bar deviates from detection sleeve's tip wears out support pressure square tube and be fixed with the circular arc bent plate, the regulation oblique block top surface orientation is kept away from detection sleeve direction is by supreme slope setting down, the detection sleeve outside is provided with and is used for the drive the actuating mechanism that the regulation oblique block removed.

Through adopting above-mentioned technical scheme, the actuating mechanism promotes to support and presses the straight-bar through adjusting the sloping block and slides towards the direction of keeping away from the detection sleeve, and a plurality of supports presses the straight-bar to promote the synchronous butt in the concrete entrance to a cave inside wall of detection of circular arc bent plate to this realizes that the detection sleeve sets up in the central point who detects the entrance to a cave. Then the inside unwrapping wire of orientation detection sleeve thereby keeps the sonar pipe as far as possible in the central point who detects the entrance to a cave, has improved the sonar pipe and has had more difficulty kept in the centre of drilling, causes the problem of certain influence to the result of test.

Optionally, the actuating mechanism is including the cover locate the spacing sleeve in the detection sleeve outside, with spacing sleeve axle center is vertical be fixed in a plurality of drive straight-bar of spacing sleeve bottom surface and set up in spacing sleeve week side is used for avoiding spacing sleeve to roll back as far as possible spacing part, drive straight-bar bottom wears to locate support and press square tube inside and be fixed with the drive sloping block, drive sloping block bottom surface orientation is kept away from the detection sleeve direction is by supreme slope setting down, a plurality of drive sloping block and a plurality of adjust sloping block one-to-one, drive sloping block bottom surface and corresponding adjust sloping block inclined plane laminating mutually, drive sloping block sets up in the position at adjustment sloping block top.

Through adopting above-mentioned technical scheme, operating personnel presses limit sleeve, and limit sleeve drives the vertical downward slip of drive sloping block through the drive straight-bar, and the drive sloping block promotes to press the straight-bar through adjusting sloping block and slides towards keeping away from the direction of detecting sleeve, and a plurality of supports presses the straight-bar to promote the synchronous butt in the concrete entrance to a cave inside wall of detection of circular arc bent plate to this makes the central point that detects the sleeve and is located the detection entrance to a cave.

Optionally, the vertical a plurality of ratchet ring gear that is provided with of detection sleeve outer peripheral face, ratchet ring gear top surface orientation is kept away from detection sleeve direction is by slope down setting, limiting part is including wearing to locate the lock solid square tube of limit sleeve week side lock solid square tube is close to detection sleeve's lateral wall has seted up the lock solid recess, limiting part still includes through the lock solid recess wears to locate lock solid square tube inside lock solid oblique block and fixed connection in lock solid recess tank bottom with lock solid spring between the oblique block tip, lock solid oblique block bottom surface orientation is close to lock solid spring direction is by slope setting down, the limit sleeve outside is provided with and is used for driving lock solid square tube slides's pressing mechanism.

By adopting the technical scheme, the ratchet wheel gear ring is arranged on the outer peripheral surface of the detection sleeve, so that the phenomenon that the limit sleeve retreats is effectively avoided; when an operator presses the limit sleeve, the bottom surface of the locking inclined block is attached to the top surface of the ratchet wheel gear ring, and in the process that the detection sleeve continuously moves downwards, the locking inclined block retracts into the locking square cylinder under the action of the elastic force of the locking spring and extends out of the locking square cylinder. When the operator no longer presses the limit sleeve, the top surface of the locking inclined block is attached to the bottom surface of the ratchet gear ring, so that the displacement of the detection sleeve is limited.

Optionally, the pressure mechanism includes being fixed in lock solid square section of thick bamboo deviates from lock solid oblique side wall of piece support oblique piece, cover is located support press sleeve of limit sleeve outer peripheral face, coaxial being fixed in support press ring of the inner peripheral face at press sleeve top, be fixed in a plurality of electro-magnet of limit sleeve top surface and be fixed in support a plurality of iron plate of pressing ring bottom surface, a plurality of electro-magnet with a plurality of iron plate one-to-one and can adsorb, support oblique piece top surface with support press sleeve bottom surface slope setting, support press sleeve bottom surface with support oblique piece inclined plane laminating mutually.

By adopting the technical scheme, when an operator needs to detect the defect of the concrete, the electromagnet at the top of the supporting sleeve is started, and the electromagnet adsorbs the iron block on the bottom surface of the pressing ring, so that the pressing ring drives the pressing sleeve to vertically slide downwards through the adsorption relationship between the electromagnet and the iron block; the pressing sleeve pushes the pressing square cylinder to slide towards the direction close to the detection sleeve through the supporting inclined block until the bottom surface of the locking inclined block is attached to the top surface of the ratchet gear ring. When an operator needs to detect the defect of concrete, the electromagnet at the top of the supporting sleeve is closed, the locking square cylinder moves towards the direction away from the detection sleeve through elasticity, the locking inclined block is not contacted with the ratchet gear ring any more, and the pressing sleeve also vertically slides upwards through elasticity at the moment, so that the operation of the whole device is controlled, and the operation is simple and convenient.

Optionally, the detection sleeve inner peripheral face is provided with two clamping mechanisms that are used for the centre gripping the power cord, two clamping mechanisms symmetry sets up, clamping mechanisms including install in the telescopic tube of detection sleeve top, two pass through the port at telescopic tube both ends wears to locate telescopic tube inside flexible loop bar and fixed connection in two the telescopic spring of the tip that flexible loop bar is close to, two clamping mechanisms are close to the tip that flexible loop bar is close to rotates and installs the unwrapping wire pulley, another flexible loop bar is kept away from telescopic tube's tip is provided with and is used for adjusting flexible loop bar clamping angle's control mechanism.

Through adopting above-mentioned technical scheme, operating personnel establishes the power cord of detector body in unwrapping wire pulley week side, and control mechanism drives telescopic sleeve and flexible loop bar angle regulation, until two unwrapping wire pulleys centre gripping in power cord week side. Due to the telescopic sleeve and the telescopic sleeve rod, the clamping mechanism can clamp power wires with different thicknesses and types, and therefore the power wires are positioned at the central position of the inner side of the detection sleeve.

Optionally, control mechanism includes rotate install in the rotatory ring gear of detection sleeve top surface, be fixed in support and press the driving motor of ring top surface, rotate in the centre gripping straight-bar at detection sleeve top, coaxial being fixed in two the centre gripping straight-bar is close to the bevel gear of tip each other and coaxial being fixed in the centre gripping straight-bar is kept away from the drive gear of bevel gear, two the intermeshing of bevel gear sets up, drive gear with rotatory ring gear meshes the setting mutually, the driving motor output shaft coaxial being fixed with limiting gear, limiting gear with rotatory ring gear meshes the setting mutually.

Through adopting above-mentioned technical scheme, driving motor circular telegram starts, and driving motor passes through the limit straight-bar and drives the limit gear and rotate, and the limit gear drives rotatory ring gear and rotate, and rotatory ring gear passes through driving gear and drives one of them centre gripping straight-bar and rotate, and two centre gripping straight-bars pass through bevel gear synchronous rotation, and another centre gripping straight-bar drives and drives telescopic sleeve and telescopic handle angle regulation.

Optionally, a plurality of forked tail through groove has been vertically seted up to detection sleeve outer peripheral face, detection sleeve passes through the forked tail through groove is provided with and is used for supplying guiding mechanism of spacing sleeve direction, guiding mechanism including through the forked tail through groove set up in detection sleeve week side's forked tail lug and be fixed in the forked tail lug is close to spacing sleeve's lateral wall spacing sleeve, spacing sleeve inner peripheral face with fixedly connected with connection straight-bar between the forked tail lug lateral wall.

Through adopting above-mentioned technical scheme, because the forked tail lug of limit sleeve inner peripheral face sets up in detecting sleeve outer peripheral face through forked tail logical groove vertical slip for limit sleeve vertical slip sets up in detecting sleeve outer peripheral face.

Optionally, the supporting mechanism includes that the coaxial sleeve locates the support sleeve in the detection sleeve outside, coaxial being fixed in the support ring of the week side at support sleeve section of thick bamboo top and support ring axle center for axial rotation install in support ball in support ring bottom surface, support sleeve section of thick bamboo bottom surface is fixed in support and press the sleeve top surface.

By adopting the technical scheme, the device is vertically placed at the inner side of the detected concrete hole until the supporting ball at the bottom of the supporting ring is abutted against the edge of the hole; then adjustment mechanism begins work, because adjustment mechanism can drive detection sleeve, support sleeve and the whole emergence displacement of support ring, the effect of support ball is the friction that reduces support ring and bottom surface for the device can remove more easily.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving mechanism pushes the pressing straight rod to slide towards the direction away from the detection sleeve through the adjusting inclined block, and the pressing straight rod pushes the arc curved plate to synchronously abut against the inner side wall of the detected concrete hole, so that the detection sleeve is arranged at the central position of the detection hole. Then paying off towards the inside of the detection sleeve so as to keep the sonar tube at the central position of the detection hole as much as possible, thereby solving the problem that the sonar tube is difficult to keep in the middle of the drilling hole and has a certain influence on the test result;

2. the ratchet wheel gear ring is arranged on the outer peripheral surface of the detection sleeve, so that the phenomenon that the limit sleeve retreats is effectively avoided; when an operator presses the limit sleeve, the bottom surface of the locking inclined block is attached to the top surface of the ratchet wheel gear ring, and in the process that the detection sleeve continuously moves downwards, the locking inclined block retracts into the locking square cylinder under the action of the elastic force of the locking spring and extends out of the locking square cylinder. When an operator does not press the limit sleeve any more, the top surface of the locking inclined block is attached to the bottom surface of the ratchet wheel gear ring, so that the displacement of the detection sleeve is limited;

3. the operating personnel set up the power cord of detector body in unwrapping wire pulley week side, and control mechanism drives telescopic tube and flexible loop bar angle regulation, and two unwrapping wire pulleys centre gripping are in power cord week side. Due to the telescopic sleeve and the telescopic sleeve rod, the clamping mechanism can clamp power wires with different thicknesses and types, and therefore the power wires are positioned at the central position of the inner side of the detection sleeve.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present application.

Fig. 2 is an exploded view of the bottom of the pressing ring in the embodiment of the present application.

Fig. 3 is a schematic view of the construction of the support sleeve and support ring removed in accordance with an embodiment of the present application.

Fig. 4 is an exploded view of the exterior of the detection sleeve in an embodiment of the present application.

Fig. 5 is an exploded view of the stop sleeve and the abutment sleeve in an embodiment of the present application.

Fig. 6 is an enlarged schematic view of the portion a in fig. 4.

Reference numerals: 11. a detector body; 12. a power line; 13. detecting a sonar tube; 14. detecting a sleeve; 15. supporting the sleeve; 16. supporting the ring; 17. ball grooves; 18. supporting the ball; 19. a limit circular ring; 20. limiting through grooves; 21. a ratchet ring gear; 22. dovetail through grooves; 23. dovetail bumps; 24. connecting a straight rod; 25. a limit sleeve; 26. a relief through hole; 27. a locking structure; 28. locking the square cylinder; 29. locking the first square frame; 30. locking a second frame; 31. a compression spring; 32. locking the groove; 33. locking the oblique block; 34. locking a spring; 35. supporting the inclined block; 36. pressing the sleeve; 37. pressing the circular ring; 38. an electromagnet; 39. iron blocks; 40. a pressing structure; 41. pressing the square cylinder; 42. adjusting the inclined block; 43. pressing the through hole; 44. pressing the straight rod; 45. arc curved plate; 46. a square tube through hole; 47. driving a straight rod; 48. driving the inclined block; 49. rotating the gear ring; 50. a sleeve groove; 51. a planar thrust bearing; 52. a clamping structure; 53. a supporting cross plate; 54. a first supporting vertical plate; 55. a second supporting vertical plate; 56. a riser through hole; 57. clamping the straight rod; 58. bevel gears; 59. a drive gear; 60. a telescoping sleeve; 61. a telescopic loop bar; 62. a telescopic spring; 63. paying-off pulleys; 64. paying-off grooves; 65. a driving motor; 66. defining a straight rod; 67. defining a gear.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a concrete defect ultrasonic detector. Referring to fig. 1 to 3, the ultrasonic detector for concrete defects comprises a detector body 11, a power line 12, a detection sonar tube 13, a detection sleeve 14, a support sleeve 15 coaxially sleeved outside the detection sleeve 14 and a support ring 16 coaxially fixed on the outer peripheral surface of the top of the support sleeve 15, wherein a circle of ball grooves 17 are formed in the bottom surface of the support ring 16 by taking the axis of the support ring as the axial direction, and support balls 18 are installed on the support ring 16 in a rolling manner through the ball grooves 17. The bottom surface of the supporting ring 16 is coaxially fixed with a limiting ring 19, a circle of limiting through grooves 20 are formed in the bottom surface of the limiting ring 19 by taking the self axis as the axial direction, and a plurality of limiting through grooves 20 are in one-to-one correspondence with and communicated with a plurality of ball grooves 17. The inner diameter of the limiting through groove 20 is smaller than the diameter of the supporting ball 18, so that the bottom of the supporting ball 18 exceeds the limiting circular ring 19 through the limiting through groove 20, and the limiting circular ring 19 prevents the supporting ball 18 from falling off as much as possible through the limiting through groove 20.

Referring to fig. 1, 4 and 5, the outer peripheral surface of the detection sleeve 14 is axially disposed on a circle of ratchet ring gears 21 with its own axis, a plurality of ratchet ring gears 21 are vertically disposed, and the top surface of the ratchet ring gears 21 is inclined from top to bottom toward a direction away from the detection sleeve 14. Three dovetail through grooves 22 are vertically formed in the outer peripheral surface of the detection sleeve 14, the three dovetail through grooves 22 are axially and equidistantly arranged by taking the axle center of the detection sleeve 14 as an axle center, and the dovetail through grooves 22 are of a dovetail-shaped through groove structure with cross sections. The detection sleeve 14 is clamped with a dovetail lug 23 through a dovetail through groove 22, the dovetail lug 23 is of a lug structure with a dovetail cross section, and a connecting straight rod 24 is fixed on the side wall of the dovetail lug 23, which is close to the support sleeve 15. The detection sleeve 14 is coaxially sleeved with a limit sleeve 25, the limit sleeve 25 is positioned on the inner side of the support sleeve 15, and the ends of the three connecting straight rods 24, which are close to the support sleeve 15, are fixed on the inner peripheral surface of the limit sleeve 25. The limiting sleeve 25 is provided with three relief through holes 26 penetrating through the peripheral side of the limiting sleeve 25, the three relief through holes 26 are axially equidistant by taking the axis of the limiting sleeve 25 as an axis, and the limiting sleeve 25 is provided with a locking structure 27 for avoiding the retraction of the limiting sleeve 25 as far as possible through the relief through holes 26.

Referring to fig. 1, 4 and 5, the locking structure 27 includes a locking square cylinder 28 penetrating through the circumferential side of the limiting sleeve 25 through the positioning through hole 26, a locking square frame first 29 fixed on the inner side wall of the limiting sleeve 25, and a locking square frame second 30 fixed on the circumferential side of the limiting sleeve 25, where the locking square frame first 29 and the locking square frame second 30 are all frame structures formed by surrounding four straight bars and having rectangular cross sections. A compression spring 31 is fixedly connected between the side walls of the first locking square frame 29 and the second locking square frame 30, and the compression spring 31 is sleeved on the periphery of the locking square cylinder 28. The end of the locking square 28 remote from the support sleeve 15 passes inside the locking square 29. The side wall of the locking square cylinder 28, which is away from the supporting sleeve 15, is provided with a locking groove 32 along the length direction thereof, a locking inclined block 33 is penetrated through the locking groove 32 in the locking square cylinder 28, and the bottom surface of the locking inclined block 33 is obliquely arranged from top to bottom towards the direction close to the supporting sleeve 15. A locking spring 34 is fixedly connected between the bottom of the locking groove 32 and the end of the locking inclined block 33.

Referring to fig. 1, 4 and 5, the locking square tube 28 is fixedly provided with a supporting inclined block 35 near the side wall of the supporting sleeve 15, and the top surface of the supporting inclined block 35 is obliquely arranged from top to bottom in a direction away from the detecting sleeve 14. The outer peripheral surface of the limit sleeve 25 is coaxially sleeved with a pressing sleeve 36, the bottom surface of the pressing sleeve 36 is obliquely arranged from top to bottom towards the direction close to the limit sleeve 25, and the bottom surface of the pressing sleeve 36 is attached to the inclined surface of the supporting inclined block 35. The inner peripheral surface at the top of the pressing sleeve 36 is coaxially fixed with a pressing ring 37, three electromagnets 38 are arranged on the top surface of the limiting sleeve 25 at equal intervals in the axial direction by taking the self axis as the axial direction, three iron blocks 39 are arranged on the bottom surface of the pressing ring 37 at equal intervals in the axial direction by taking the self axis as the axial direction, and the three electromagnets 38 are in one-to-one correspondence with the three iron blocks 39 and can be mutually adsorbed.

Referring to fig. 1 and 3, a pressing structure 40 is disposed between the detecting sleeve 14 and the bottom of the supporting sleeve 15, and the pressing structure 40 is axially and equally spaced by three with respect to the axial center of the detecting sleeve 14. The pressing structure 40 includes a pressing square tube 41 fixed to the bottom surfaces of the detection sleeve 14 and the support sleeve tube 15, and the pressing square tube 41 has a rectangular hollow tube structure. An adjusting inclined block 42 is slidably arranged in the pressing square cylinder 41 along the length direction of the pressing square cylinder, and the top surface of the adjusting inclined block 42 is inclined from bottom to top in the direction away from the detection sleeve 14. The pressing square tube 41 is provided with a pressing straight rod 44 in a penetrating way through the pressing through hole 43, one end of the pressing straight rod 44 is vertically fixed on the side wall of the adjusting inclined block 42, which is away from the detection sleeve 14, and the other end of the pressing straight rod 44 penetrates out of the pressing square tube 41 and is fixed with an arc curved plate 45, and the arc curved plate 45 is concavely arranged towards the direction away from the detection sleeve 14.

Referring to fig. 1 and 3, a pressing spring 68 is fixedly connected between the adjusting inclined block 42 and the inner side wall of the pressing square tube 41, and the pressing spring 68 is sleeved on the circumference side of the pressing straight rod 44. The side wall of the propping square tube 41 far away from the detection sleeve 14 is provided with a propping through hole 43, the top surface of the propping square tube 41 is provided with a square tube through hole 46, the propping square tube 41 is provided with a driving straight rod 47 in a penetrating way through the square tube through hole 46, the bottom end of the driving straight rod 47 is fixedly provided with a driving inclined block 48, the top end of the driving straight rod 47 is fixedly provided with the bottom surface of the limiting sleeve 25, the bottom surface of the driving inclined block 48 is obliquely arranged from bottom to top towards the direction far away from the detection sleeve 14, the bottom surface of the driving inclined block 48 is attached to the inclined surface of the adjusting inclined block 42, and the driving inclined block 48 is arranged at the top position of the adjusting inclined block 42.

Referring to fig. 1 and 6, a sleeve groove 50 is formed in the top surface of the detection sleeve 14 by taking the axis of the detection sleeve as the axial direction, a rotary gear ring 49 is mounted on the detection sleeve 14 through the sleeve groove 50, and a planar thrust bearing 51 is mounted between the bottom surface of the rotary gear ring 49 and the bottom of the sleeve groove 50, so that the rotary gear ring 49 is rotatably mounted on the top of the detection sleeve 14 through the planar thrust bearing 51, and the rotary gear ring 49 is of a circular ring structure with a circle of teeth on the top. Inside the detection sleeve 14, two clamping structures 52 for clamping the power cord 12 are provided, and the two clamping structures 52 are arranged symmetrically. The clamping structure 52 comprises a supporting transverse plate 53 horizontally fixed on the inner side wall of the detection cylinder, a first supporting vertical plate 54 and a second supporting vertical plate 55 vertically fixed on the top surface of the supporting transverse plate 53, and the first supporting vertical plate 54 and the second supporting vertical plate 55 are vertically arranged. The surfaces of the first supporting vertical plate 54 and the second supporting vertical plate 55 are respectively provided with a vertical plate through hole 56, and the first supporting vertical plate 54 and the second supporting vertical plate 55 are respectively provided with a clamping straight rod 57 in a penetrating way through the vertical plate through holes 56.

Referring to fig. 1 and 6, bevel gears 58 are coaxially fixed to the adjacent ends of the two clamping straight rods 57, and the two bevel gears 58 are engaged with each other. The end part of the clamping straight rod 57, far away from the bevel gear 58, penetrated by the first supporting vertical plate 54 is coaxially fixed with a driving gear 59, and the driving gear 59 is meshed with the rotary gear ring 49. The clamping structure 52 further comprises a telescopic sleeve 60, two telescopic sleeve rods 61 penetrating through ports at two ends of the telescopic sleeve 60 and arranged in the telescopic sleeve 60, and a telescopic spring 62 fixedly connected to the end parts of the two telescopic sleeve rods 61 close to each other, wherein one telescopic sleeve rod 61 is fixed to the end part of a clamping straight rod 57 penetrating through a supporting vertical plate II 55 and far away from the bevel gear 58, the other telescopic sleeve rod 61 is rotatably provided with a paying-off pulley 63, and a circle of paying-off groove 64 is formed in the circumferential side of the paying-off pulley 63. The top surface of the pressing ring 37 is fixedly provided with a driving motor 65, the output shaft of the driving motor 65 is coaxially fixed with a limiting straight rod 66, the end part of the limiting straight rod 66 far away from the driving motor 65 is coaxially fixed with a limiting gear 67, and the limiting gear 67 is meshed with the rotary gear ring 49.

The implementation principle of the ultrasonic detector for concrete defects in the embodiment of the application is as follows: firstly, vertically placing the device on the inner side of a detected concrete hole until the supporting balls 18 at the bottom of the supporting ring 16 are abutted against the edge of the hole; the electromagnet 38 at the top of the supporting sleeve 15 is electrified and started, and the electromagnet 38 adsorbs and presses the iron block 39 on the bottom surface of the circular ring 37, so that the circular ring 37 is pressed and the pressing sleeve 36 is driven to vertically slide downwards through the adsorption relationship between the electromagnet 38 and the iron block 39. The pressing sleeve 36 pushes the pressing square cylinder 41 to slide towards the direction approaching to the detection sleeve 14 through the supporting inclined block 35 until the bottom surface of the locking inclined block 33 is attached to the top surface of the ratchet gear ring 21. The operator presses the limit sleeve 25, and the dovetail lug 23 on the inner circumferential surface of the limit sleeve 25 is vertically slidably arranged on the outer circumferential surface of the detection sleeve 14 through the dovetail through groove 22, so that the limit sleeve 25 is vertically slidably arranged on the outer circumferential surface of the detection sleeve 14. The limiting sleeve 25 drives the driving inclined block 48 to vertically slide downwards through the driving straight rod 47, and simultaneously the backing-off of the limiting sleeve 25 is effectively avoided through the contact mode of the top surface of the locking inclined block 33 and the bottom surface of the ratchet gear ring 21. The driving inclined block 48 pushes the pressing straight rod 44 to slide towards a direction away from the detection sleeve 14 through the adjusting inclined block 42, and the plurality of pressing straight rods 44 push the arc curved plates 45 to synchronously abut against the inner side wall of the detected concrete hole, so that the detection sleeve 14 is positioned at the center position inside the detection hole.

The operator establishes the power cord 12 of detector body 11 in one of them unwrapping wire pulley 63 week side through unwrapping wire recess 64, driving motor 65 starts, driving motor 65 drives the rotation of prescribing a limit gear 67 through prescribing a limit to straight-bar 66, prescribing a limit to gear 67 drives rotatory ring gear 49 rotation, rotatory ring gear 49 drives the centre gripping straight-bar 57 that support riser 54 was worn to establish through driving gear 59 and rotates, two centre gripping straight-bars 57 pass through bevel gear 58 synchronous rotation, the centre gripping straight-bar 57 that support riser 55 was worn to establish drives telescopic sleeve 60 and telescopic sleeve 61 angle regulation, until two unwrapping wire pulleys 63 pass through unwrapping wire recess 64 centre gripping in power cord 12 week side, thereby realize that power cord 12 is located the inboard central point of detection sleeve 14.

The driving motor 65 is electrified and reversely rotated, the electromagnet 38 is powered off and closed, the locking square cylinder 28 moves towards the direction away from the detection sleeve 14 under the action of the elastic force of the locking spring 34, the locking inclined block 33 is not contacted with the ratchet gear ring 21 any more, and the pressing sleeve 36 vertically slides upwards under the action of the elastic force of the locking spring 34. The circular arc curved plate 45 moves towards the inside of the approaching detection sleeve 14 under the action of the elastic force of the compression spring 31, at this time, the adjusting inclined block 42 pushes the driving inclined block 48 to vertically move upwards under the action of the elastic force of the compression spring 31, and the driving inclined block 48 pushes the limiting sleeve 25 to vertically slide upwards through the driving straight rod 47, so that the device is restored to the initial state.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a concrete defect ultrasonic detector, includes detector body (11), power cord (12), detects sonar pipe (13), detects sleeve (14) and set up in detect sleeve (14) outside be used for supporting detect the supporting mechanism of sleeve (14), its characterized in that: the utility model discloses a power cord detection sleeve, including detection sleeve (14), detection sleeve (14) bottom is provided with a plurality of and is used for making power cord (12) are in the adjustment mechanism in entrance to a cave center, adjustment mechanism including be fixed in detection sleeve (14) bottom surface support pressure square tube (41), the level slide set up in support pressure square tube (41) inside regulation sloping block (42) and be fixed in adjust sloping block (42) deviate from support pressure straight-bar (44) of the lateral wall of detection sleeve (14), support pressure straight-bar (44) deviate from detection sleeve (14) the tip is worn out support pressure square tube (41) and is fixed with circular arc bent plate (45), adjust sloping block (42) top surface orientation and keep away from detection sleeve (14) direction by supreme slope setting down, detection sleeve (14) outside is provided with and is used for the drive adjustment sloping block (42) removal actuating mechanism.

2. The ultrasonic detector for concrete defects according to claim 1, wherein: the driving mechanism comprises a limit sleeve (25) sleeved on the outer side of the detection sleeve (14), a plurality of driving straight rods (47) which are vertically fixed on the bottom surface of the limit sleeve (25) in an axial direction and a limit part which is arranged on the periphery of the limit sleeve (25) and used for avoiding the retraction of the limit sleeve (25) as far as possible, the bottom end of the driving straight rod (47) penetrates through the inside of the pressing square cylinder (41) and is fixedly provided with a driving inclined block (48), the bottom surface of the driving inclined block (48) is obliquely arranged from bottom to top towards the direction far away from the detection sleeve (14), the driving inclined blocks (48) are in one-to-one correspondence with the adjusting inclined blocks (42), the bottom surface of the driving inclined block (48) is attached to the inclined surface of the corresponding adjusting inclined block (42), and the driving inclined block (48) is arranged at the top of the adjusting inclined block (42).

3. The ultrasonic detector for concrete defects according to claim 2, wherein: the detection sleeve (14) outer peripheral face is vertically provided with a plurality of ratchet ring gears (21), ratchet ring gears (21) top surface orientation is kept away from detection sleeve (14) direction is by upwards downward sloping setting, limiting part is including wearing to locate locking square tube (28) of limit sleeve (25) week side locking square tube (28) are close to detection sleeve (14) lateral wall has seted up locking recess (32), limiting part still includes through locking recess (32) wear to locate locking bevel block (33) inside locking square tube (28) and fixed connection in locking recess (32) tank bottom with locking spring (34) between locking bevel block (33) tip, locking bevel block (33) bottom surface orientation is close to locking spring (34) direction is by upwards downward sloping setting, the outside of limit sleeve (25) is provided with the pressing mechanism that is used for driving locking square tube (28) slides.

4. A concrete defect ultrasonic detector according to claim 3, wherein: the pressing mechanism comprises a supporting inclined block (35) fixed on the side wall of the locking square cylinder (28) deviating from the locking inclined block (33), a pressing sleeve (36) sleeved on the outer peripheral surface of the limiting sleeve (25), a pressing ring (37) coaxially fixed on the inner peripheral surface of the top of the pressing sleeve (36), a plurality of electromagnets (38) fixed on the top surface of the limiting sleeve (25) and a plurality of iron blocks (39) fixed on the bottom surface of the pressing ring (37), wherein the electromagnets (38) and the iron blocks (39) are in one-to-one correspondence and can be adsorbed, the top surface of the supporting inclined block (35) and the bottom surface of the pressing sleeve (36) are obliquely arranged, and the bottom surface of the pressing sleeve (36) is attached to the inclined surface of the supporting inclined block (35).

5. The ultrasonic detector for concrete defects according to claim 1, wherein: the utility model discloses a power cord detection device, including detection sleeve (14) and telescopic sleeve (60), detection sleeve (14) inner peripheral face is provided with two fixture that are used for the centre gripping power cord (12), two fixture symmetry sets up, fixture including install in telescopic sleeve (60) in detection sleeve (14) top, two pass through the port at telescopic sleeve (60) both ends wears to locate telescopic sleeve (60) inside telescopic handle (61) and fixed connection in two telescopic spring (62) of the tip that telescopic handle (61) are close to, two fixture are close to telescopic handle (61) are close to the tip rotation that telescopic handle (61) are close to installs unwrapping wire pulley (63), another telescopic handle (61) keep away from telescopic sleeve (60)'s tip is provided with the control mechanism that is used for adjusting telescopic handle (61) clamping angle.

6. The ultrasonic detector for concrete defects according to claim 5, wherein: the control mechanism comprises a rotary gear ring (49) rotatably mounted on the top surface of the detection sleeve (14), a driving motor (65) mounted above the detection sleeve (14), clamping straight rods (57) rotatably mounted on the top of the detection sleeve (14), bevel gears (58) coaxially fixed on the two ends of the clamping straight rods (57) close to each other, and driving gears (59) coaxially fixed on the clamping straight rods (57) and away from the bevel gears (58), the two bevel gears (58) are meshed with each other, the driving gears (59) are meshed with the rotary gear ring (49), limiting gears (67) are coaxially fixed on an output shaft of the driving motor (65), and the limiting gears (67) are meshed with the rotary gear ring (49).

7. The ultrasonic detector for concrete defects according to claim 2, wherein: the utility model discloses a measuring sleeve, including measuring sleeve (14), measuring sleeve (14) outer peripheral face is vertical to have seted up a plurality of forked tail through groove (22), measuring sleeve (14) is provided with through forked tail through groove (22) is used for confession guiding mechanism of spacing sleeve (25), guiding mechanism including through forked tail through groove (22) set up in measuring sleeve (14) week side forked tail lug (23) and be fixed in forked tail lug (23) are close to spacing sleeve (25) lateral wall spacing sleeve (25), spacing sleeve (25) inner peripheral face with fixedly connected with connection straight-bar (24) between forked tail lug (23) lateral wall.

8. The ultrasonic detector for concrete defects according to claim 4, wherein: the supporting mechanism comprises a supporting sleeve (15) coaxially sleeved on the outer side of the detecting sleeve (14), a supporting circular ring (16) coaxially fixed on the periphery of the top of the supporting sleeve (15) and supporting balls (18) axially rotatably installed on the bottom surface of the supporting circular ring (16), and the bottom surface of the supporting sleeve (15) is fixed on the top surface of the pressing sleeve (36).

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