CN210720265U

CN210720265U - Portable ultrasonic detector for nondestructive testing

Info

Publication number: CN210720265U
Application number: CN201921389656.1U
Authority: CN
Inventors: 余薇; 沈立新; 杨勇; 戴飞
Original assignee: Nanjing Huazhong Testing Co Ltd
Current assignee: Nanjing Huazhong Testing Co Ltd
Priority date: 2019-08-24
Filing date: 2019-08-24
Publication date: 2020-06-09
Anticipated expiration: 2029-08-24

Abstract

The utility model discloses a portable ultrasonic detector for nondestructive test, which is applied to the field of ultrasonic detectors and solves the technical problem of small detection range of the ultrasonic detector, the key point of the technical proposal is that the portable ultrasonic detector comprises a detector body, a shell and a probe which are wrapped outside the detector body, the probe is connected on the detector body through a wire, a telescopic rod is arranged on the shell, the head of the telescopic rod is provided with a U-shaped connector, the probe is rotatably connected at the middle position of the connector, and the telescopic pipe comprises a plurality of sleeves which are sequentially sleeved and the diameter of which is gradually reduced; the technical effect is that the position which can not be touched by the staff can be detected, thereby improving the detection capability.

Description

Portable ultrasonic detector for nondestructive testing

Technical Field

The utility model relates to an ultrasonic detector field, more specifically says that it relates to a portable ultrasonic detector for nondestructive test.

Background

The nondestructive testing is a testing means for testing the surface and internal quality of a tested part on the premise of not damaging the working state of a workpiece or raw materials, ultrasonic testing is also called ultrasonic testing, the testing work is carried out by utilizing an ultrasonic technology, the ultrasonic testing is one of five conventional nondestructive testing methods, and an ultrasonic detector is a concrete instrument for ultrasonic testing.

Chinese patent No. CN208399440U discloses an ultrasonic flaw detector with a U-shaped coupling device, which includes an ultrasonic flaw detector body and a coupling agent containing device, wherein the coupling agent containing device and the ultrasonic flaw detector body are integrally connected or separately provided with the U-shaped coupling device; the U-shaped coupling device comprises a coupling agent smearing component, a probe component and a torsion spring, when the U-shaped coupling device is in a working state, the central shaft of the roller is perpendicular to the plane where the first holding part and the second holding part are located and the connecting device, and the connecting device comprises a coupling agent guide pipe and a lead.

According to the ultrasonic flaw detector with the U-shaped combined device, the U-shaped combined device emits ultrasound, is in contact with a detected object and receives signals at the same time, and the U-shaped combined device transmits the signals to the flaw detector body through the wires and converts the data of the flaw detector body, so that nondestructive detection is performed on the object. However, when detecting a pressure vessel and a pipeline, the pipeline is often intricate and complex, and the arrangement may be higher than the height of a detector, so that in actual measurement, the ultrasonic flaw detector can only detect objects within a range that an operator can contact, cannot detect a range that the operator cannot contact, and is not suitable for later maintenance of the pipeline.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a portable ultrasonic detector is used to nondestructive test, its advantage can detect the position that the staff can not contact to improve the ability that detects.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a portable ultrasonic detector for nondestructive test, includes detector body, parcel casing, probe outside the detector body, the probe passes through the wire and connects on the detector body, be equipped with the telescopic link on the casing, the head of telescopic link is equipped with the connector of U-shaped, the probe rotates the intermediate position of connection at the connector, the telescopic link includes a plurality of sleeves that cup joint in proper order and the diameter reduces gradually.

Through above-mentioned technical scheme, the probe is used for sending the ultrasonic wave, and the sound wave is rebounded on striking the object, is sensed by the probe again, and the probe is on with signal transmission to the detector body, judges the damage that can not be seen by the people's eye of detected object through the change of sound wave. The telescopic link can stretch out and draw back, to pipeline or pressure vessel that the staff can't touch, installs the probe on the connector this moment, adjusts the length of telescopic link to through the extension of telescopic link, make the probe touch the surface of being detected the object. The telescopic rod comprises a plurality of sleeves and a sliding sleeve, so that the length of the telescopic rod can be adjusted.

The utility model discloses further set up to: the probe is characterized in that two symmetrical fixed shafts are arranged on the probe in a direction perpendicular to the probe, the fixed shafts penetrate through the side wall of the connector, a limiting part is arranged on the side wall of the connector in a sliding mode in the radial direction of the fixed shafts, a plurality of grooves are circumferentially formed in the cylindrical surface of each fixed shaft, and the limiting parts are inserted into the grooves.

Through the technical scheme, the surface of the probe needs to be in contact with the surface of the measured object, so that the acoustic wave is conveniently transmitted and received. The pipeline which can not be touched by the working personnel can be vertically arranged or horizontally arranged, so that the angle of the probe needs to be changed, and the probe is rotationally connected to the connecting head through the fixed shaft. After the limiting piece is inserted on the fixed shaft, the fixed shaft and the probe cannot rotate; when the limiting piece is separated from the fixed shaft, the fixed shaft and the probe can rotate, and the fixed shaft and the probe are locked.

The utility model discloses further set up to: the one end of locating part is kept away from the fixed axle is equipped with the spring, the other end of spring is fixed on the connector.

Through above-mentioned technical scheme, the spring is arranged in supporting the locating part tightly in the recess all the time to ensure at the in-process that detects, the position of probe can not change.

The utility model discloses further set up to: the back of the shell is provided with a rotating shaft fixed on the shell along the direction perpendicular to the back of the shell, the rotating shaft is rotatably connected with a cylinder, the cylinder is fixedly provided with two discs, and the wire is wound on the cylinder while two ends of the wire are respectively inserted on the flaw detector body and the probe.

Through above-mentioned technical scheme, because the wire is longer to cause the wire can twine, the setting of drum and disc makes the wire twine between two discs, thereby plays the effect of accomodating to the wire, prevents that the wire twines together, and then releases the length of wire according to actual demand.

The utility model discloses further set up to: a plurality of U-shaped limiting grooves are circumferentially arranged on the disc, and convex edges are inwards arranged at openings of the limiting grooves.

Through above-mentioned technical scheme, the both ends of wire are connected respectively on the probe and the detector body, when not using, pull out the probe, and the drum does not change this moment, but the one end of wire does not receive the restraint and can scatter from the drum by oneself, inlays the one end of wire this moment and establishes in the spacing groove to prevent that the wire from scattering.

The utility model discloses further set up to: the rotating shaft is in threaded connection with a plum nut.

Through above-mentioned technical scheme, the plum blossom nut is used for spacing drum and disc, prevents that the drum breaks away from the pivot. When the plum nut is screwed, the plum nut tightly supports the disc on the shell, so that the rotation of the disc is limited; when the plum nut is loosened, the disc can rotate at the moment, and then the wire can be wound conveniently.

The utility model discloses further set up to: fixed sleeves are arranged on two sides of the shell, and the telescopic rods are inserted into the fixed sleeves.

Through above-mentioned technical scheme, fixed cover is used for accomodating the telescopic link, and from avoiding the telescopic link not having the place to accomodate, and then be convenient for wholly carry detector body, telescopic link and probe.

The utility model discloses further set up to: the back of the shell is fixedly provided with four finger rings for fingers to penetrate and an annular connecting band for clamping a wrist.

Through above-mentioned technical scheme, when detecting, detector body is held to one hand, and the probe need be held to the other hand, because general detector body all exceeds the size of palm for the staff is when the detector body of taking, and the detector drops easily. The finger ring and the connecting band are arranged, so that the detector body is conveniently fixed on the palm of the hand, and the detector body is prevented from being separated from the palm.

To sum up, the utility model discloses following beneficial effect has:

1. due to the arrangement of the telescopic rod, the probe can reach a position which cannot be contacted by a worker, so that the detection capability is improved;

2. the detector body can be firmly connected to the palm, and the falling and breaking can be effectively prevented.

Drawings

Fig. 1 is a schematic front view of the present embodiment.

Fig. 2 is a schematic structural diagram of the connecting head and the probe of the present embodiment.

Fig. 3 is an enlarged view of a in fig. 2.

Fig. 4 is a schematic view of the entire structure of the back surface of the present embodiment.

Fig. 5 is a schematic structural view of the disc and the rotating shaft of the present embodiment.

Reference numerals: 1. a detector body; 2. a probe; 21. a fixed shaft; 22. a groove; 3. a housing; 31. a finger ring; 32. a connecting belt; 33. fixing a sleeve; 4. a telescopic rod; 41. a sleeve; 42. a connector; 43. a limiting member; 44. a spring; 45. a limiting plate; 5. a wire; 6. a rotating shaft; 61. a cylinder; 62. a disc; 63. a limiting groove; 64. a plum blossom nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1, a portable ultrasonic detector for nondestructive testing includes a detector body 1, a shell 3 wrapped outside the detector body 1, and a probe 2, wherein the probe 2 and the detector body 1 are electrically connected through a wire 5. Probe 2 is used for launching the ultrasonic wave and receiving the ultrasonic wave, and at first probe 2 and the contact of testee, probe 2 takes place the ultrasonic wave after that, and the sound wave is rebound on striking the object, is sensed by probe 2 again, and probe 2 is on signal transmission detector body 1, judges the damage that can not be seen by the people's eye of testee through the change of sound wave to carry out nondestructive test to the object.

Referring to fig. 1 and 2, fixing sockets 33 are provided at both left and right sides of the housing 3, the telescopic bar 4 is received in the fixing sockets 33, and the probe 2 is connected to one end of the telescopic bar 4. When the worker holds the probe 2 and cannot touch the surface of the object to be detected, the probe 2 is fixed on the telescopic rod 4, the length of the telescopic rod 4 is adjusted, the telescopic rod 4 is held by the hand, and then the probe 2 touches the place which cannot be touched by the hand of the worker. Further facilitating detection. The telescopic rod 4 comprises a plurality of sleeves 41 which are sleeved with each other, the diameters of the sleeves 41 gradually decrease according to an arithmetic progression, and meanwhile, the adjacent sleeves 41 are in interference fit.

Referring to fig. 2, a U-shaped connector 42 is fixedly disposed at the head of the telescopic rod 4, two fixed shafts 21 are disposed on the probe 2 along a direction perpendicular to the probe 2, and the fixed shafts 21 and the housing of the probe 2 are integrally disposed. The fixing shaft 21 passes through both ends of the coupling head 42, so that the fixing shaft 21 is rotatably coupled to the coupling head 42. The pipeline which can not be reached by the staff can be vertically arranged or horizontally arranged, and the probe 2 is required to be always attached to the pipeline, so that the angle between the probe 2 and the telescopic rod 4 can be adjusted according to the actual situation on site in the actual operation process. The probe 2 can rotate, and then can satisfy the needs of detection.

Referring to fig. 2 and 3, a limiting member 43 is slidably disposed on a sidewall of the connecting head 42 along a radial direction of the fixed shaft 21, the fixed shaft 21 extends out of the connecting head 42, a plurality of grooves 22 are uniformly distributed on the fixed shaft 21 in a circumferential direction, and the limiting member 43 can be inserted into the grooves 22. Two limiting plates 45 are arranged on the side wall of the connecting head 42, and the limiting member 43 is clamped in the middle by the limiting plates 45, so that the limiting member 43 is limited to slide only along the linear direction. When the limiting piece 43 is inserted on the fixed shaft 21, the fixed shaft 21 and the probe 2 cannot rotate; after the limiting member 43 is disengaged from the fixed shaft 21, the fixed shaft 21 and the probe 2 can rotate, thereby locking the fixed shaft 21 and the probe 2. Preventing the probe 2 from suddenly rotating during contact with an object.

Referring to fig. 3, a spring 44 is disposed at a lower end of the limiting member 43, the other end of the spring 44 is fixed to the connector 42, and the spring 44 always exerts an elastic force on the limiting member 43, so that the limiting member 43 is ensured to always abut against the groove 22 without an external force, the limiting member 43 is prevented from being disengaged from the fixed shaft 21, and the stability of connection between the probe 2 and the connector 42 is improved.

Referring to fig. 4 and 5, a rotating shaft 6 is fixedly arranged on the housing 3 at the back of the housing 3 along a direction perpendicular to the housing 3, a cylinder 61 is rotatably connected to the rotating shaft 6, discs 62 are fixedly arranged at both ends of the cylinder 61, the discs 62 and the cylinder 61 are coaxially arranged, the wire 5 is coiled on the cylinder 61, so that the wire 5 is prevented from being wound together due to too long, and the cylinder 61 and the discs 62 have a function of accommodating the wire 5. The both ends of wire 5 are pegged graft respectively on detector body 1 and probe 2, and wire 5 is close to the one end of detector body 1 and fixes on drum 61 simultaneously, when accomodating wire 5, breaks away from with probe 2 and detector body 1 at the both ends of wire 5 earlier to when rotating drum 61, wire 5 can be coiled on drum 61.

Referring to fig. 4 and 5, a plurality of U-shaped limiting grooves 63 are uniformly distributed at the edge of the disc 62 in the circumferential direction, and ribs are inwardly arranged at the openings of the limiting grooves 63. When the lead 5 is completely coiled on the cylinder 61, one end of the lead 5 is clamped in the limiting groove 63, so that the lead 5 and the cylinder 61 are prevented from being scattered due to relative rotation, and the lead 5 is completely limited on the cylinder 61. The rotating shaft 6 extends out of the cylinder 61 and is threadedly connected with a plum nut 64. The plum nut 64 is used for limiting the cylinder 61 and the disc 62, and preventing the cylinder 61 from being separated from the rotating shaft 6. When the plum blossom nut 64 is screwed, the plum blossom nut 64 tightly supports the disc 62 on the shell 3 at the moment, and the rotation of the disc 62 is further limited; when the plum nut 64 is loosened, the disc 62 can rotate at the moment, and therefore the wire can be wound conveniently.

Referring to fig. 5, four finger rings 31 and a ring-shaped connecting band 32 are fixedly provided on the rear surface of the housing 3, the connecting band 32 having elasticity and elasticity, and the finger rings 31 and the connecting band 32 are located below the disc 62. The finger ring 31 is used for the finger to extend into, and the connecting belt 32 is clamped at the position of the wrist. The detector body 1 is firmly fixed on the palm of the hand by the arrangement, and the detector body 1 is prevented from falling off from the palm.

The action process is as follows: firstly, a human hand passes through the connecting belt 32 and fingers are inserted in the finger ring 31; then starting the detector body 1, and placing the probe 2 on the surface of the object to be detected; in the detection process, if the probe 2 cannot touch an object to be detected, the telescopic rod 4 is started, and the probe 2 can further touch the position which cannot be touched by a human hand.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a portable ultrasonic detector for nondestructive test, includes detector body (1), parcel casing (3), probe (2) outside detector body (1), probe (2) pass through wire (5) and connect on detector body (1), its characterized in that: be equipped with telescopic link (4) on casing (3), the head of telescopic link (4) is equipped with connector (42) of U-shaped, probe (2) rotate the intermediate position of connection at connector (42), telescopic link (4) include a plurality of sleeve pipes (41) that cup joint in proper order and the diameter reduces gradually.

2. The portable ultrasonic testing apparatus for nondestructive testing according to claim 1, characterized in that: the probe (2) is provided with two symmetrical fixed shafts (21) along a direction perpendicular to the probe (2), the fixed shafts (21) penetrate through the side wall of the connector (42), the side wall of the connector (42) is provided with a limiting piece (43) in a sliding mode along the radial direction of the fixed shafts (21), the cylindrical surface of each fixed shaft (21) is circumferentially provided with a plurality of grooves (22), and the limiting piece (43) is inserted into the grooves (22).

3. The portable ultrasonic testing apparatus for nondestructive testing according to claim 2, characterized in that: one end, far away from the fixed shaft (21), of the limiting part (43) is provided with a spring (44), and the other end of the spring (44) is fixed on the connector (42).

4. The portable ultrasonic testing apparatus for nondestructive testing according to claim 1, characterized in that: the back of casing (3) is equipped with pivot (6) of fixing on casing (3) along the direction of the back of perpendicular to casing (3), it is connected with drum (61) to rotate on pivot (6), two disc (62) are fixed to be equipped with on drum (61), wire (5) twine on drum (61) and the both ends of wire (5) are pegged graft respectively on detector body (1) and probe (2).

5. The portable ultrasonic testing apparatus for nondestructive testing according to claim 4, characterized in that: a plurality of U-shaped limiting grooves (63) are circumferentially formed in the disc (62), and convex ribs are inwards arranged at openings of the limiting grooves (63).

6. The portable ultrasonic testing apparatus for nondestructive testing according to claim 5, characterized in that: the rotating shaft (6) is in threaded connection with a plum nut (64).

7. The portable ultrasonic testing apparatus for nondestructive testing according to claim 1, characterized in that: the two sides of the shell (3) are respectively provided with a fixed sleeve (33), and the telescopic rod (4) is inserted into the fixed sleeves (33).

8. The portable ultrasonic testing apparatus for nondestructive testing according to claim 1, characterized in that: the back of the shell (3) is fixedly provided with four finger rings (31) for fingers to penetrate and an annular connecting band (32) for clamping a wrist.