CN212031263U

CN212031263U - Probe clamp for nondestructive testing

Info

Publication number: CN212031263U
Application number: CN202020515142.2U
Authority: CN
Inventors: 尹婷婷; 韩振华; 宋博骐
Original assignee: Shanghai Construction Group Co Ltd
Current assignee: Shanghai Construction Group Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-27
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a probe anchor clamps for nondestructive test, include: the fixing seat is provided with a first bayonet through a rotating shaft, an arc-shaped sliding groove which takes the first bayonet as a circle center is formed in the fixing seat, a sliding block is arranged in the sliding groove, a second bayonet is arranged on the sliding block, and a limiting part used for limiting the position of the sliding block is arranged on the sliding block. The utility model provides a probe anchor clamps for nondestructive test with the probe card back on the bayonet socket, can adjust arbitrary angle with the probe through adjusting the slider position to through locating part restriction probe angular position, make the installation angle of probe accurate and stable, improved the installation effectiveness, thereby reduced measuring error greatly, improved measurement accuracy.

Description

Probe clamp for nondestructive testing

Technical Field

The utility model relates to a nondestructive test equipment technical field especially relates to a probe anchor clamps for timber structure nondestructive test.

Background

Among nondestructive testing technologies, the nondestructive testing technology based on the stress wave principle is more and more widely applied to wood structure and wood testing due to safety, simple operation and convenient carrying, and is suitable for field operation. The basic working principle of stress wave detection is based on the acoustical properties of wood, i.e. when a mechanical knock is applied at a certain point on the surface of the wood, a propagation of stress waves (mechanical waves) is generated inside the wood. The stress wave detector utilizes the principle that a specific induction probe transmits and receives a stress wave vibration wave beam propagating in the wood to measure the propagation time between the two induction probes so as to judge the material performance and the internal damage condition of the wood. The speed of stress wave propagation in nondestructive detection of wood is one of the most important parameters of the detection result. However, there are many factors influencing the propagation speed of the stress wave, and research shows that the propagation speed of the stress wave in the wood is changed along with the change of the included angle between the sensor and the surface of the wood, and the propagation speed is also changed correspondingly. The angle between the two sensors also affects the stress wave velocity. Therefore, in order to measure stable and effective data, the angle between the sensor and the wood and between the sensor and the sensor should be accurately installed during operation. At present, the field detection method is to manually hold the detection equipment, fix the relative position between the detection equipment and the detected component by means of manual tightening, and adjust the detection position and angle by visual inspection. The operation method has the disadvantages that the detection result is greatly interfered by human factors due to the large individual difference of manual operation, the relative needle inserting angle between the detection equipment and a detected component cannot be accurately measured, and the detection data is lack of accuracy. Special probe fixtures are required to make the installation process stable, accurate and convenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the installation of the handheld check out test set probe of manpower in the current nondestructive test process and cause detection position and angle unstability, inaccurate, the inconvenient problem of installation, the technical scheme who adopts is: a probe holder for non-destructive testing, comprising: the fixing seat is provided with a first bayonet through a rotating shaft, an arc-shaped sliding groove which takes the first bayonet as a circle center is formed in the fixing seat, a sliding block is arranged in the sliding groove, a second bayonet is arranged on the sliding block, and a limiting part used for limiting the position of the sliding block is arranged on the sliding block.

The improved structure is characterized in that the sliding groove is a trapezoidal sliding groove with a trapezoidal section, and the sliding block is a trapezoidal sliding block matched with the trapezoidal sliding groove.

The further improvement is that the width of the top of the trapezoidal sliding block is the same as that of the top opening of the trapezoidal sliding groove, and the height of the trapezoidal sliding block is smaller than the depth of the trapezoidal sliding groove.

The sliding groove is further improved in that the cross section of the sliding groove is in a convex shape, and the minimum width of the sliding block is larger than the width of an opening at the upper part of the sliding groove.

The further improvement is that the limiting part is a magnetic part.

The further improvement is that the sliding groove and/or the sliding block are magnetic parts.

The further improvement is that the limiting part is a limiting bolt arranged on the sliding block.

The improved structure is characterized in that angle scales are arranged beside the sliding groove.

The utility model has the advantages that:

the utility model provides a probe anchor clamps for nondestructive test with the probe card back on the bayonet socket, can adjust arbitrary angle with the probe through adjusting the slider position to through locating part restriction probe angular position, make the installation angle of probe accurate and stable, thereby reduced measuring error greatly, improved measurement accuracy.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a probe holder of the present invention;

FIG. 2 is a schematic structural view of the probe holder of the present invention;

fig. 3 is a schematic view of a first bayonet structure of the present invention;

FIG. 4 is a schematic structural view of a second bayonet and a slider of the present invention;

FIG. 5 is a cross-sectional view of a chute according to a first embodiment of the present invention;

fig. 6 is a schematic view of the use state of the probe holder of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1-4, the utility model provides a probe anchor clamps for nondestructive test, include: a fixing base 1, be equipped with first bayonet socket 2 through the pivot on the fixing base 1 to make first bayonet socket 2 can rotate, be equipped with on the fixing base 1 with first bayonet socket 2 is the arc spout 3 of the centre of a circle, be equipped with slider 4 in the spout 3, this slider 4 can freely slide along 3 extending direction of spout in spout 3, be equipped with second bayonet socket 5 on the slider 4, just be equipped with on the slider 4 and be used for the restriction the locating part of slider 4 position. The second bayonet 5 points to the center of the circular arc chute 3.

In this embodiment, the fixing base 1 is fan-shaped. The first bayonet 2 and the second bayonet 5 include, but are not limited to, a C-shaped bayonet made of an elastic material.

As shown in fig. 5, the further improvement is that the chute 3 is a trapezoidal chute with a trapezoidal section, and the slider 4 is a trapezoidal slider matched with the trapezoidal chute. Thus, the slider 4 can slide along the chute 3, but cannot come off the chute 3.

The further improvement is that the width of the top of the trapezoidal sliding block is the same as that of the top opening of the trapezoidal sliding groove, and the height of the trapezoidal sliding block is smaller than the depth of the trapezoidal sliding groove. Therefore, the sliding block is provided with a moving space perpendicular to the sliding direction, so that the sliding block can move and the limiting piece can work conveniently.

The further improvement is that the limiting part is a magnetic part. The fixing of the position of the sliding block is realized through a magnetic attraction mode, so that the device is convenient and low in cost.

In a further improvement, the sliding groove 3 and/or the sliding block 4 are magnetic attracting pieces. Specifically, fixing base 1 is the non-metallic material, and 3 bottoms of spout are for inhaling the piece, and correspondingly, slider 4 is then the metal material that can be inhaled by magnetism. Or, the bottom of the sliding groove 3 is made of a magnetic metal material, and correspondingly, the sliding block 4 is made of a magnetic material.

In another embodiment, the limiting member may also be a limiting bolt disposed on the sliding block 4. The bolt is screwed to abut against the sliding groove 3, so that the sliding block 4 is limited. Compare in the magnetic absorption locating part, though it is troublesome slightly when carrying out angular adjustment, nevertheless the slider after the bolt fastening can not lead to the probe angle to change because of uniform velocity such as external force vibrations takes place to move, and then makes measuring result inaccurate.

The improved structure is characterized in that an angle scale 6 is arranged beside the sliding chute 3.

As shown in fig. 6, when the present clip is used:

step one, pulling up the movable sliding block to slide to corresponding scales in the trapezoidal groove according to the measured angle requirement.

And step two, putting down the sliding block to enable the trapezoidal sliding block to be adsorbed in the trapezoidal sliding groove, so that the second bayonet is fixed at a fixed angle on the fixed seat.

And step three, mounting the upper end of the nondestructive testing sensor probe 100 on a first bayonet on the sliding block, so that the bayonet can wrap the probe.

And step four, fixing the lower end of the probe on the first bayonet.

And fifthly, placing the fixing seat along the surface of the wood in a welting mode, wherein the fixing seat is vertical to the surface of the wood.

And step six, one hand presses the joint of the sensor probe and the fixed seat, and the other hand beats up the sensor probe to carry out installation or detection.

Example two

The utility model provides a probe anchor clamps for nondestructive test, include: a fixing base 1, be equipped with first bayonet socket 2 through pivot 21 on the fixing base 1 to make first bayonet socket 2 can rotate, be equipped with on the fixing base 1 with first bayonet socket 2 is the arc spout 3 of the centre of a circle, be equipped with slider 4 in the spout 3, this slider 4 can freely slide along 3 extending direction of spout in spout 3, be equipped with second bayonet socket 5 on the slider 4, just be equipped with on the slider 4 and be used for the restriction the locating part of slider 4 position.

The further improvement is that the sliding groove 3 is in a convex cross section, and the minimum width of the sliding block 4 is larger than the width of the opening at the upper part of the sliding groove 3. Thus, the slider 4 can slide along the chute 3, but cannot come off the chute 3.

In a further improvement, the sliding groove 3 and/or the sliding block 4 are magnetic attracting pieces. Specifically, fixing base 1 is the non-metallic material, and 3 bottoms of spout or 3 whole for the magnetism piece of spout, correspondingly, slider 4 then is the metal material that can be inhaled by magnetism. Or, the whole of the sliding groove 3 or the bottom of the sliding groove 3 is made of a magnetic metal material, and correspondingly, the sliding block 4 is made of a magnetic material.

The clamp reduces measurement errors. In the field test of timber structure ancient building, because need the manpower to hold and support tightly by survey component, in the installation, need keep the stable balance and the relative position of equipment fixed for a long time, because artificial shake and move, perhaps the range estimation angle installation all can cause the collection error of installation angle error initiation test data, this anchor clamps make probe installation angle accurate, reduce the error, improve measurement accuracy.

This anchor clamps effectively fixes the sensor probe. The sensor probe and a tested component are required to be fully and tightly abutted during installation, the local friction stress of a contact surface between the sensor probe and the tested component is too large, the sensor probe and the tested component are easy to slide and dislocate, and the clamp can effectively fix the probe during installation and is convenient to install.

This anchor clamps reduce the manual operation fatigue. In knocking the installation, need to keep check out test set's stable balance and relative position fixed for a long time, reduce the installation effectiveness, this anchor clamps utilize the bayonet socket fixed probe, only need the one hand to press anchor clamps and probe, need not artifical relative position and angle of maintaining, are favorable to reducing the manual operation time, improve the installation effectiveness.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A probe holder for non-destructive testing, comprising: the fixing seat is provided with a first bayonet through a rotating shaft, an arc-shaped sliding groove which takes the first bayonet as a circle center is formed in the fixing seat, a sliding block is arranged in the sliding groove, a second bayonet is arranged on the sliding block, and a limiting part used for limiting the position of the sliding block is arranged on the sliding block.

2. The probe fixture of claim 1, wherein the chute is a trapezoidal chute having a trapezoidal cross-section, and the slide is a trapezoidal slide mating with the trapezoidal chute.

3. The probe clamp of claim 2, wherein a top width of the trapezoidal slider is the same as a top opening width of the trapezoidal chute, and a height of the trapezoidal slider is less than a depth of the trapezoidal chute.

4. The probe holder of claim 1, wherein the chute is "male" in cross-section and the minimum width of the slide is greater than the width of the upper opening of the chute.

5. The probe clamp of any one of claims 1-4, wherein the retaining member is a magnetically attractive member.

6. The probe holder of claim 5, wherein the runner and/or the slide are magnetically attracted.

7. The probe clamp of any one of claims 1-4, wherein the retainer is a retainer bolt disposed on the slider.

8. The probe clamp of claim 1, wherein an angle scale is provided beside the chute.