Sound wave flaw detection probe

Abstract

The utility model provides a sound wave flaw detection probe which comprises a probe and a coupling agent supply assembly, and a cavity is arranged on the side surface; the upper end of the sliding block is at least partially arranged in the cavity and is configured to slide up and down relative to the cavity; an accommodating part is arranged between the sliding block and the cavity and is used for accommodating a coupling agent; an input pipeline is arranged at the upper end of the cavity and is used for providing the coupling agent for the accommodating part; the valve is arranged on the input pipeline and is used for controlling the on-off of the input pipeline; a ball is arranged at the lower end of the sliding block, a channel is formed in the sliding block, and the channel is communicated with the ball and the containing part and used for inputting a coupling agent into the ball; the control button is arranged on the sliding block, connected with the valve and used for controlling opening and closing of the valve. The coupling agent supply assembly is arranged, so that the coupling agent does not need to be manually coated during flaw detection.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic flaw detection probes, and particularly to the technical field of ultrasonic flaw detection probes. Background Art

[0002] Ultrasonic waves are widely used in the fields of medical treatment and flaw detection. Especially in the field of metal flaw detection, the flaw detector uses pulse reflection ultrasonic flaw detection. Its principle is generally that in a uniform material, the existence of defects will cause discontinuity of the material, and this discontinuity often causes inconsistency of acoustic impedance. According to the reflection theorem, ultrasonic waves will reflect at the interface of two media with different acoustic impedances, and the magnitude of the reflected energy is related to the difference in acoustic impedance between the two media on both sides of the interface and the orientation and size of the interface. The pulse reflection ultrasonic flaw detector is designed based on this principle. However, this also causes its defect, that is, a coupling agent must be coated on the surface of the object to be measured during use.

[0003] In the prior art, the coupling agent is generally coated manually, but this method is troublesome and not easy to operate. Especially in the field of metal flaw detection, the objects to be measured are often large in volume, variable in shape, and manual coating over a large area is time-consuming and laborious. There is an urgent need for a flaw detector that is convenient for coating. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an acoustic flaw detection probe, which does not require manual coating of a coupling agent during ultrasonic detection and flaw detection, and is convenient to use.

[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions:

[0006] Provide an acoustic flaw detection probe, comprising:

[0007] A probe, the probe includes a bottom surface and at least one side surface;

[0008] A coupling agent supply assembly, which is arranged on the side surface and includes a cavity, a sliding block, a valve and a control button;

[0009] Wherein, the cavity is arranged on the side surface;

[0010] At least a part of the upper end of the sliding block is arranged in the cavity and is configured to be able to slide up and down relative to the cavity; a receiving part is arranged between the sliding block and the cavity for receiving the coupling agent; an input pipeline is arranged at the upper end of the cavity for supplying the coupling agent to the receiving part;

[0011] The valve is arranged on the input pipeline for controlling the on-off of the input pipeline;

[0012] A ball is provided at the lower end of the sliding block, and a channel is provided inside the sliding block. The channel communicates the ball with the accommodating part and is used to input a coupling agent to the ball.

[0013] The control button is arranged on the sliding block and is connected to the valve to control the opening and closing of the valve.

[0014] Furthermore, an elastic body is also provided in the cavity. The elastic body is arranged inside the accommodating part, with one end arranged on the lower surface of the upper end of the cavity and the other end arranged on the upper end of the sliding block. The elastic body is used to provide a downward force to the sliding block.

[0015] Furthermore, the sliding block is provided with a hemispherical groove, and the ball is snap-fitted in the hemispherical groove and can freely roll relative to the hemispherical groove.

[0016] Furthermore, when the probe is not in use, the position of the ball is lower than the bottom surface of the probe.

[0017] Furthermore, a sealing ring is provided at the upper end of the sliding block.

[0018] Furthermore, the control button is a spring button switch.

[0019] Furthermore, a limiting protrusion is provided at the lower edge of the cavity, and a protrusion is provided on the upper end surface of the sliding block facing the outer side wall of the cavity. The limiting protrusion cooperates with the protrusion to prevent the sliding block from falling off the cavity.

[0020] Furthermore, the button of the spring button switch faces the limiting protrusion and maintains a defined distance from the limiting protrusion.

[0021] Furthermore, the probe includes a housing, a wedge, an acoustic absorption material, and a wafer. The wedge, the acoustic absorption material, and the wafer are arranged inside the housing. The wedge and the acoustic absorption material are arranged opposite to each other, and the wafer is arranged on the wedge.

[0022] Furthermore, the probe further includes a connecting wire. The connecting wire is connected to the wafer and is arranged at the upper end of the housing. The input pipeline is fixedly connected to the connecting wire.

[0023] Compared with the prior art, the present utility model has the following advantages:

[0024] 1. The acoustic wave flaw detection probe provided by the present utility model is provided with a coupling agent supply assembly, which can facilitate the operator to apply the coupling agent during use. Description of the Drawings

[0025] To more clearly illustrate the technical solution of the present utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings in the following description are an embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0026] Figure 1 A cross-sectional view of the acoustic flaw detection probe provided by the present utility model;

[0027] Figure 2 A rear view of the acoustic flaw detection probe provided by the present utility model. Specific embodiments

[0028] The following further details the solution proposed by the present utility model in conjunction with the drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are in a very simplified form and all use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. In order to make the purpose, features, and advantages of the present utility model more obvious and understandable, please refer to the drawings. It should be known that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0029] Figure 1 A cross-sectional view of the acoustic flaw detection probe provided by the present utility model is shown, as Figure 1 shown, the acoustic flaw detection probe 100 includes: a probe and a couplant supply assembly 200. The probe includes a housing 101, a wedge 103, an acoustic absorption material 105, and a wafer 107. The wedge 103, the acoustic absorption material 105, and the wafer 107 are disposed within the housing 101. The wedge is disposed opposite to the acoustic absorption material, and the wafer is disposed on the wedge. The probe further includes a connecting wire, which is connected to the wafer 107 and is disposed at the upper end of the housing for sending an electrical signal to the wafer to generate ultrasonic waves.

[0030] Optionally, the housing includes a bottom surface and at least one side surface. The side surfaces are four, namely a front side surface, a rear side surface, a left side surface, and a right side surface. The bottom surface is disposed at the bottom of the side surfaces.

[0031] The couplant supply assembly 200 is disposed on the side surface, and includes a cavity 201, a sliding block 203, a valve 207, and a control button 204; preferably, the couplant supply assembly 200 is disposed on the rear side surface.

[0032] Among them, the cavity 201 is disposed on the side surface, specifically, on the rear side surface. At least a part of the upper end of the sliding block 203 is disposed in the cavity and is configured to be able to slide up and down relative to the cavity; a receiving portion 202 is provided between the sliding block 203 and the cavity 201 for receiving the couplant; an input pipeline is provided at the upper end of the cavity for supplying the couplant to the receiving portion; the valve 207 is disposed on the input pipeline for controlling the on-off of the input pipeline; a ball 205 is provided at the lower end of the sliding block 203, and a channel 206 is provided in the sliding block, and the channel 206 communicates the ball and the receiving portion for inputting the couplant to the ball; the control button 204 is disposed on the sliding block, and the control button 204 is connected to the valve for controlling the opening and closing of the valve 207.

[0033] Furthermore, an elastic body 209 is further provided in the cavity. The elastic body 209 is disposed in the receiving portion 202, one end thereof is disposed on the lower surface of the upper end of the cavity 201, and the other end thereof is disposed on the upper end of the sliding block. The elastic body is used to provide a downward force to the sliding block.

[0034] When the probe is not in use, the position of the ball 205 is lower than the bottom surface of the probe, and the valve 207 is closed. During use, since the ball 205 is lower than the bottom surface of the probe, the ball 205 will first contact the surface of the object to be measured. The ball 205 receives an upward force from the object to be measured, drives the sliding block to move upward along the cavity, squeezes the receiving portion, and the couplant in the receiving portion flows along the channel 206 to the surface of the ball under the squeeze; when the sliding block moves further upward, it drives the control button 204 to move upward. At this time, the control button touches the lower edge of the cavity 201, and the control valve 207 is opened. The couplant is continuously input into the receiving portion through the input pipeline, and then flows to the ball 205. The operator operates the probe to move back and forth on the surface of the object to be measured, drives the ball 205 to roll, and the couplant is coated on the surface of the ball 205, and then is coated on the surface of the object to be measured along with the rolling of the ball, thereby realizing automatic coating of the couplant, which is convenient to operate. After use, the operator lifts the probe, and the elastic member drives the sliding block to move downward, so that the control button 204 is separated from the pressing of the lower edge of the cavity 201, so that the control button is closed, and then the valve is closed, and the input pipeline of the couplant is also sealed, preventing accidental leakage.

[0035] Figure 2 The rear view of the present invention is shown, as Figure 2As shown, optionally, the number of the balls 205 is greater than or equal to three. The balls 205 are rubber balls. The sliding block 203 is provided with hemispherical grooves, and the balls 205 are clamped in the hemispherical grooves and can freely roll relative to the hemispherical grooves. The number of the hemispherical grooves is the same as the number of the balls.

[0036] Optionally, a sealing ring is provided at the upper end of the sliding block to seal the accommodating portion and prevent the sliding block from sliding up and down, resulting in the leakage of the coupling agent from the gap between the sliding block and the cavity.

[0037] Further, the control button is a spring button switch, so that it can be turned on when pressed and turned off when the pressing disappears.

[0038] Further, a limiting protrusion is provided at the lower edge of the cavity, and a protrusion is provided on the upper end of the sliding block 203 facing the outer side wall of the cavity. The limiting protrusion cooperates with the protrusion to prevent the sliding block from falling off the cavity. The limiting protrusion is stuck in the middle of the sliding block 203, below the protrusion, so as to prevent the protrusion from disengaging downward from the limiting protrusion.

[0039] Optionally, the button of the spring button switch faces the limiting protrusion and maintains a defined distance from the limiting protrusion. The spring button switch is provided on the outer side surface of the sliding block 203, below the limiting protrusion, and maintains a defined distance from the limiting protrusion. When the sliding block 203 moves upward, it can drive the spring button switch to move upward, and when the balls 205 are flush with the bottom surface, the spring button switch touches below the limiting protrusion, thereby opening the valve 207.

[0040] Further, the input pipeline is fixedly connected to the connecting wire. Such a connection is convenient for operation, and the connecting wire and the input pipeline will not be entangled. Optionally, the fixed connection method is a clip.

[0041] Optionally, the elastic body 209 is a spring.

[0042] The acoustic flaw detector probe provided by the utility model is provided with a coupling agent supply assembly, which can facilitate the operator to apply the coupling agent during use.

[0043] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0044] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be construed as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and alternatives to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. An acoustic flaw detection probe, characterized in that, Comprising: A probe, the probe including a bottom surface and at least one side surface; A couplant supply assembly, which is disposed on the side surface and includes a cavity, a slider, a valve, and a control button; Wherein, the cavity is disposed on the side surface; At least a part of the upper end of the slider is disposed in the cavity and is configured to be able to slide up and down relative to the cavity; a receiving portion is provided between the slider and the cavity for receiving the couplant; an input pipeline is provided at the upper end of the cavity for supplying the couplant to the receiving portion; The valve is disposed on the input pipeline for controlling the on-off of the input pipeline; A ball is provided at the lower end of the slider, and a channel is provided in the slider, and the channel communicates the ball and the receiving portion for inputting the couplant to the ball; The control button is disposed on the slider, and the control button is connected to the valve for controlling the opening and closing of the valve.

2. The acoustic flaw detection probe according to claim 1, characterized in that, An elastomer is further provided in the cavity, the elastomer is disposed in the receiving portion, one end thereof is disposed on the lower surface of the upper end of the cavity, and the other end thereof is disposed on the upper end of the slider, and the elastomer is used to provide a downward force to the slider.

3. The acoustic flaw detection probe according to claim 2, characterized in that, The slider is provided with a hemispherical groove, and the ball is clamped in the hemispherical groove and can freely roll relative to the hemispherical groove.

4. The acoustic flaw detection probe according to claim 3, wherein, When the probe is not in use, the position of the ball is lower than the bottom surface of the probe.

5. The acoustic flaw detection probe according to claim 1, wherein, A sealing ring is provided at the upper end of the slider.

6. The acoustic flaw detection probe according to any one of claims 1-5, characterized in that, The control button is a spring button switch.

7. The acoustic flaw detection probe according to claim 6, characterized in that, A limiting protrusion is provided at the lower edge of the cavity, and a protrusion is provided on the outer side wall of the upper end surface of the slider facing the cavity, and the limiting protrusion cooperates with the protrusion to prevent the slider from falling off the cavity.

8. The acoustic flaw detection probe according to claim 7, wherein, The button of the spring button switch faces the limiting protrusion and maintains a defined distance from the limiting protrusion.

9. The acoustic flaw detection probe according to claim 1, characterized in that, The probe includes a housing, a wedge, an acoustic absorption material, and a wafer, the wedge, the acoustic absorption material, and the wafer are disposed in the housing, the wedge and the acoustic absorption material are disposed opposite to each other, and the wafer is disposed on the wedge.

10. The acoustic flaw detection probe according to claim 9, characterized in that, The probe further includes a connecting wire, the connecting wire is connected to the wafer and is disposed at the upper end of the housing, and the input pipeline is fixedly connected to the connecting wire.

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