CN214668803U

CN214668803U - Self-focusing phased array ultrasonic probe

Info

Publication number: CN214668803U
Application number: CN202120108548.3U
Authority: CN
Inventors: 宋良成
Original assignee: Chongqing Wofeite Technology Development Co ltd
Current assignee: Chongqing Wofeite Technology Development Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-11-09
Anticipated expiration: 2031-01-15

Abstract

The utility model relates to the technical field of ultrasonic detection, in particular to a self-focusing phased array ultrasonic probe, which comprises a probe shell and a lantern ring detachably connected in the shell, wherein a sealing plate is connected in the shell in a sliding way, a back lining layer, an upper electrode layer, a piezoelectric wafer, a lower electrode layer and a matching layer are fixedly connected in the lantern ring from top to bottom in sequence, the shell is detachably connected with a cable connector, a cable is arranged in the cable connector, the inner wall of the shell is provided with a first connecting block, the first connecting block is provided with positive and negative clamping blocks, the upper surface of the sealing plate is provided with a second connecting block, the second connecting block is provided with positive and negative clamping grooves, the positive and negative clamping grooves are respectively and electrically connected with the upper electrode layer and the lower electrode layer, the side wall at the inner side of the shell is symmetrically provided with a groove, the clamping blocks are slidably connected in the groove, a spring is fixedly connected between the clamping blocks and the bottom surface of the groove, the side wall at the outer side of the lantern ring is symmetrically provided with clamping grooves for clamping blocks, the problem of traditional probe be convenient for install and dismantle not, its inner structure is overhauld and is maintained relatively troublesome in the later stage is solved.

Description

Self-focusing phased array ultrasonic probe

Technical Field

The application relates to the technical field of ultrasonic detection, and particularly discloses a self-focusing phased array ultrasonic probe.

Background

Nondestructive testing is a general term for all technical means for detecting whether a defect or non-uniformity exists in a tested object by using characteristics of sound, light, magnetism, electricity and the like without damaging or influencing the use performance of the tested object, giving information such as the size, position, property, quantity and the like of the defect, and further judging the technical state (such as qualification or qualification, service life and the like) of the tested object.

Chinese utility model patent with patent publication No. CN209878680U discloses a composite wafer self-focusing water immersion probe for ultrasonic automatic detection of convex arc surface workpieces, the upper end of a piezoelectric wafer is solidified with a matching layer through epoxy glue, the lower end of the piezoelectric wafer is solidified with a backing material through epoxy glue, the upper surface of the piezoelectric wafer is plated with an upper electrode layer through magnetron sputtering, the lower surface is plated with a lower electrode layer through magnetron sputtering, the piezoelectric wafer plated with the upper electrode layer and the lower electrode layer and the matching layer are bonded and solidified into a laminated structure through epoxy, air bubbles in the epoxy between the piezoelectric wafer and the matching layer are to be eliminated to prevent influence on the transmission of ultrasonic waves, the laminated structure solidified into the piezoelectric wafer and the matching layer is heated and formed in a tool with a certain radian to enable the laminated structure to become to have a certain radian, the size of the radian is customized according to the detection requirement, the upper electrode layer on the upper surface of the piezoelectric wafer is welded with an electrode lead, and a lower electrode layer on the lower surface of the piezoelectric wafer is welded with a lower electrode lead, and the upper electrode lead and the lower motor lead are connected in parallel to the electrical module.

The utility model discloses a probe be not convenient for the installation dismantle, the later stage overhauls its inner structure and maintains more troublesome, consequently, the inventor is in view of this, provides a self-focusing phased array ultrasonic probe to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve traditional probe and be not convenient for the installation and dismantle, the later stage overhauls its inner structure and maintains more troublesome problem.

In order to achieve the above object, the basic scheme of the present invention provides a self-focusing phased array ultrasonic probe, which comprises a probe housing and a lantern ring detachably connected in the housing, wherein a sealing plate is slidably connected in the housing, and a backing layer, an upper electrode layer, a piezoelectric wafer, a lower electrode layer and a matching layer are fixedly connected in the lantern ring from top to bottom in sequence;

the top of the shell is detachably connected with a cable connector, a cable is arranged in the cable connector, a first connecting block communicated with the cable is arranged on the inner wall of the shell, a positive clamping block and a negative clamping block are arranged on the first connecting block, a second connecting block is arranged on the upper surface of the sealing plate, a positive clamping groove and a negative clamping groove are arranged on the second connecting block, and the positive clamping groove and the negative clamping groove are respectively electrically connected with the upper electrode layer and the lower electrode layer;

the side wall of the inner side of the shell is symmetrically provided with grooves, clamping blocks are connected in the grooves in a sliding mode, springs are fixedly connected between the clamping blocks and the bottom surfaces of the grooves, clamping grooves capable of containing the clamping blocks clamped in are symmetrically formed in the side wall of the outer side of the lantern ring, the clamping blocks are fixedly connected with pull rods in sliding connection with the shell, and one ends of the pull rods extend out of the shell.

The principle and effect of this basic scheme lie in:

1. the utility model discloses be equipped with the casing and the lantern ring, can play the effect of dual protection to the spare part in the lantern ring, can dismantle between the lantern ring of being convenient for simultaneously and be connected with the casing, be convenient for overhaul and maintain the probe.

2. The utility model discloses be equipped with the closing plate, the closing plate can play dirt-proof effect to the spare part in the lantern ring.

3. The utility model discloses be equipped with first connecting block and second connecting block, be convenient for communicate cable connector lug and last electrode layer, bottom electrode layer.

4. The utility model discloses be equipped with fixture block and draw-in groove, make casing and the mutual joint of the lantern ring, be convenient for install and dismantle.

5. The utility model discloses be equipped with spring and pull rod, the pull rod can compress tightly the fixture block in the draw-in groove, prevents that casing and lantern ring from breaking away from each other, and the pull rod is convenient for spur the fixture block, makes the fixture block break away from the draw-in groove, and then dismantles the casing and the lantern ring.

6. Compared with the prior art, the utility model discloses a set up casing, the lantern ring and each latch mechanism, make the probe be convenient for install and dismantle, solved traditional probe and be not convenient for install and dismantle, the later stage overhauls its inner structure and maintains more troublesome problem.

Further, the two pull rods are symmetrically arranged at the top and the bottom of the fixture block. The pull rods are symmetrically arranged, so that balance is kept conveniently, and the clamping blocks are prevented from deviating.

Furthermore, a connecting strip is fixedly connected between one ends of the pull rods extending out of the shell. The connecting strip connects the two pull rods together, so that the two pull rods can be pulled simultaneously.

Furthermore, the connecting strip is in threaded connection with a screw rod, and one end of the screw rod is rotatably connected with the shell. The screw rod is rotated, so that the connecting strip can move, the pull rod is convenient to move, the clamping block is further moved, and the clamping block is separated from the clamping groove.

Further, the free end of the screw is provided with an inner hexagonal hole, the side wall of the screw is provided with an external thread, and the connecting strip is provided with an inner threaded hole matched with the external thread. Interior hexagonal hole is standard connection structure, and the technical staff of being convenient for uses other standard tool to rotate the screw rod.

Furthermore, the bottom of the clamping block is provided with a smooth round corner surface. The smooth round corner surface is convenient for the clamping block to be clamped in the clamping groove.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a cross-sectional view of a self-focusing phased array ultrasound probe according to an embodiment of the present application;

fig. 2 is an enlarged view of a portion a of a self-focusing phased array ultrasound probe according to an embodiment of the present application.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the structure comprises a shell 1, a lantern ring 2, a sealing plate 3, a cable connector 4, a first connecting block 5, a second connecting block 6, a back lining layer 7, an upper electrode layer 8, a piezoelectric wafer 9, a lower electrode layer 10, a matching layer 11, a clamping block 12, a pull rod 13, a connecting strip 14 and a screw rod 15.

A self-focusing phased array ultrasound probe, the embodiment shown in fig. 1: including probe casing 1 with can dismantle the lantern ring 2 of connection in casing 1, sliding connection has closing plate 3 in casing 1, from last to having backing layer 7, last electrode layer 8, piezoceramics piece 9, lower electrode layer 10 and matching layer 11 of rigid coupling in proper order down in the lantern ring 2. This structure is the content of the prior art and will not be described herein too much.

The top of the shell 1 is detachably connected with a cable connector 4, a cable is arranged in the cable connector 4, the inner wall of the shell 1 is provided with a first connecting block 5 communicated with the cable, the first connecting block 5 is provided with positive and negative clamping blocks, the upper surface of the sealing plate 3 is provided with a second connecting block 6, the second connecting block 6 is provided with positive and negative clamping grooves, and the positive and negative clamping grooves are respectively electrically connected with the upper electrode layer 8 and the lower electrode layer 10.

In the embodiment shown in fig. 2, grooves are symmetrically formed in the side wall of the inner side of the shell 1, the clamping blocks 12 are connected in the grooves in a sliding manner, springs are fixedly connected between the clamping blocks 12 and the bottom surfaces of the grooves, clamping grooves into which the clamping blocks 12 can be clamped are symmetrically formed in the side wall of the outer side of the lantern ring 2, and smooth fillet surfaces are formed at the bottoms of the clamping blocks 12 and facilitate the clamping blocks 12 to be clamped into the clamping grooves; the fixture block 12 is fixedly connected with two pull rods 13 which are in sliding connection with the shell 1, and the two pull rods 13 are symmetrically arranged at the top and the bottom of the fixture block 12; the pull rods 13 are symmetrically arranged, so that balance is kept conveniently, and the fixture block 12 is prevented from deviating; one end of the pull rod 13 extends out of the shell 1 and is fixedly connected with a connecting strip 14; the connecting strip 14 connects the two pull rods 13 together, so that the two pull rods 13 can be pulled simultaneously; connecting strip 14 threaded connection has

screw rod

15, 15 one ends of screw rod rotate with casing 1 to be connected, rotate screw rod 15, can make connecting strip 14 remove, be convenient for remove pull rod 13, and then remove fixture block 12, make fixture block 12 break away from the draw-in groove, 15 free ends of screw rod are equipped with interior hexagonal hole, 15 lateral walls of screw rod are equipped with the external screw thread, be equipped with on the connecting strip 14 with external screw thread complex internal thread hole, interior hexagonal hole is the connection structure of standard, the technical staff of being convenient for uses other standard tools to rotate screw rod 15.

The utility model discloses a piezoelectric wafer 9 carries out the curved surface array that the physics is crooked on passive aperture direction, enables the ultrasonic beam and focuses on in the pipe axial action face, is middle and small pipeline welding seam phased array ultrasonic testing design specially, has combined fore-and-aft mechanical focusing and horizontal electron focus, and such design can improve resolution ratio and the ascending size measurement precision of length direction.

In the implementation process of the utility model, the sealing plate 3 is firstly put into the shell 1 and then is clamped into the lantern ring 2 from bottom to top, because the bottom of the clamping block 12 is a smooth round corner surface, therefore, in the process of clamping the lantern ring 2, the lantern ring 2 extrudes the clamping block 12 to compress the spring until the clamping block 12 is matched with the clamping groove, namely, the clamping blocks 12 are completely clamped into the clamping grooves, so that the lantern ring 2 is clamped in the shell 1, the lantern ring 2 extrudes the sealing plate 3, the positive and negative clamping blocks are mutually matched and communicated with the positive and negative clamping grooves, the interface is used for electrifying the upper electrode plate and the lower electrode plate, when the lantern ring 2 needs to be disassembled, the screw rod 15 is rotated through other parts such as a wrench, the screw rod 15 rotates, the connecting strip 14 is made to move, the connecting strip 14 drives the pull rod 13 to move, the pull rod 13 drives the fixture block 12 to move, the fixture block 12 is made to be separated from the clamping groove, and the lantern ring 2 can be made to be separated from the shell 1.

Compared with the prior art, the utility model discloses a set up casing 1, lantern ring 2 and each latch mechanism, make the probe be convenient for install and dismantle, solved traditional probe and be not convenient for install and dismantle, the later stage overhauls its inner structure and maintains more troublesome problem.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.

Claims

1. A self-focusing phased array ultrasound probe characterized by: the probe comprises a probe shell and a lantern ring detachably connected in the shell, wherein a sealing plate is connected in the shell in a sliding manner, and a back lining layer, an upper electrode layer, a piezoelectric wafer, a lower electrode layer and a matching layer are fixedly connected in the lantern ring from top to bottom in sequence;

2. The self-focusing phased array ultrasound probe according to claim 1, wherein the tie rods are two and symmetrically disposed on the top and bottom of the fixture block.

3. The self-focusing phased array ultrasonic probe according to claim 2, wherein a connecting bar is fixedly connected between the ends of the pull rods extending out of the housing.

4. The self-focusing phased array ultrasonic probe according to claim 3, wherein the connecting bar is in threaded connection with a screw, and one end of the screw is rotatably connected with the housing.

5. The self-focusing phased array ultrasonic probe according to claim 4, wherein the free end of the screw is provided with an inner hexagonal hole, the side wall of the screw is provided with an external thread, and the connecting bar is provided with an inner threaded hole matched with the external thread.

6. The ultrasonic probe of claim 1, wherein the bottom of the block is provided with a smooth rounded surface.