CN116380715A - Ultrasonic wave density detector that stability is high - Google Patents

Abstract

The invention discloses an ultrasonic density detector with high stability, which relates to the technical field of ultrasonic detection and comprises a box body, wherein a box cover is hinged on the box body, a lock catch is arranged between the box body and the box cover, a host is arranged in the box body, and a display, a control key, an ultrasonic probe interface and a data transmission interface are arranged on the host; the detector further comprises a probe assembly, a detachable connecting wire is arranged between the probe assembly and the host, the probe assembly comprises a grab handle and a shell fixedly arranged at the end part of the grab handle, an acoustic transducer is arranged at the bottom end of the shell, a plurality of positioning columns are arranged on the shell in a sliding mode, and a first spring is arranged between the positioning columns and the shell. According to the invention, the plurality of positioning columns arranged around the acoustic transducer are arranged to provide enough supporting force for the probe assembly, so that the probe assembly is not easy to deviate in the detection process, and the stability of the probe assembly in the detection process is improved.

Description

Ultrasonic wave density detector that stability is high

Technical Field

The invention relates to the technical field of ultrasonic detection, in particular to an ultrasonic density detector with high stability.

Background

An ultrasonic probe is an instrument that probes the internal structure of an object with ultrasonic waves. Ultrasonic probes generally comprise a main body and a probe, wherein an acoustic transducer is arranged in the probe. In operation, the host controls the transducer to produce short and intense sound pulses to produce sound waves. When the sound wave encounters an object with different acoustic impedances, part of the sound wave is reflected and returns to the probe, and an echo is formed. The sound waves return to the probe, similar to the sound waves emitted by the probe, except that the process is exactly reversed. The returned sound waves cause the unit of the probe to oscillate and convert the oscillations into electrical pulses that are sent by the probe to the host computer for processing into identifiable signals.

The ultrasonic detection can be used for detecting the thickness and density of an article, the ultrasonic detector is used for measuring complex conditions, the ultrasonic detector is suitable for measuring complex conditions, the measuring efficiency can be effectively improved, the existing ultrasonic detector is generally used for measuring the surface of the article through the probe which is generally a plane crystal, and when an object with a curved surface or irregular surface is detected, the contact mode of the probe and the article is point contact or line contact, so that the ultrasonic detector is unstable, deflection is easy to occur in the detection process, the measuring result is inaccurate, and the measuring precision is affected.

Disclosure of Invention

The invention aims to solve the problems that an ultrasonic detector in the prior art is unstable and is easy to deviate in the detection process when detecting an object with a curved surface or an irregular surface, so that a measurement result is inaccurate and the measurement precision is affected.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the ultrasonic density detector with high stability comprises a box body, wherein a box cover is hinged on the box body, a lock catch is arranged between the box body and the box cover, a host is installed in the box body, and a display, a control key, an ultrasonic probe interface and a data transmission interface are arranged on the host;

the detector further comprises a probe assembly, a detachable connecting wire is arranged between the probe assembly and the host, the probe assembly comprises a grab handle and a shell fixedly arranged at the end part of the grab handle, an acoustic transducer is arranged at the bottom end of the shell, a plurality of positioning columns are arranged on the shell in a sliding mode, a first spring is arranged between the positioning columns and the shell, a plurality of positioning columns are distributed around the circumferential array of the acoustic transducer, and a limiting mechanism used for limiting the positioning columns is arranged in the shell.

Preferably, one end of the connecting wire, which is far away from the probe assembly, is provided with a plug, and the plug is matched with the ultrasonic probe interface.

Preferably, the stop gear is including rotating the swivel becket that sets up in the shell, the swivel becket outer wall is provided with the spacing of multiunit corresponding reference column, a plurality of spacing grooves have been seted up to the reference column outer wall when spacing card goes into the spacing groove, right the reference column carries out the axial spacing, shell center slides and is provided with the control column that runs through the swivel becket, be provided with the spring two between control column and the shell, be provided with transmission structure between control column and the swivel becket.

Preferably, the plurality of limit grooves are distributed at equal intervals along the axial direction of the positioning column, and the distribution length of the limit grooves is larger than the part of the positioning column exceeding the shell.

Preferably, the transmission structure comprises a guide post fixedly arranged on the inner wall of the rotating ring, a guide groove obliquely arranged is formed in the outer wall of the control post, and the guide post extends into the guide groove and abuts against the inner wall of the guide groove.

Preferably, the shell is provided with a sliding port with a regular hexagon cross section, and the section of the control column sliding with the sliding port is also regular hexagon.

Preferably, the winding device is arranged in the box body, the winding device comprises a storage cavity which is formed in the box body, a winding shaft is rotationally arranged in the storage cavity, two limiting plates are coaxially and fixedly arranged on the winding shaft, and a bayonet for fixing a plug is formed in the winding shaft.

Preferably, the winding shaft penetrates through the box body, a knob is fixedly arranged at one end of the winding shaft, which is positioned outside the box body, the knob is attached to the outer wall of the box body, friction strips are arranged on the surface, attached to the box body, of the knob, and the knob is kept in an original state under the action of non-external force.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the box body and the host are integrated together, and the winding shaft is arranged, so that the connecting wire can be wound by rotating the winding shaft, the convenience of the ultrasonic detector is improved, and the use flexibility of the ultrasonic detector is improved.

2. According to the invention, the plurality of positioning columns are arranged around the acoustic transducer, when an object is detected, the probe assembly is pressed against the surface of the object, so that the positioning columns stretch out and draw back according to the outline of the surface of the object, and the positions of the plurality of positioning columns can be rapidly limited in the axial direction by arranging the limiting mechanism, so that the positioning columns keep the original state in the detection process, sufficient supporting force is provided for the probe assembly, the probe assembly is not easy to deviate in the detection process, the stability of the probe assembly in the detection process is improved, and the problems that when the object with a curved surface or irregular surface is detected in the prior art, the probe assembly is relatively unstable, the deflection easily occurs in the detection process, the measurement result is inaccurate, and the measurement accuracy is affected are solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an ultrasonic density detector with high stability;

FIG. 2 is a schematic diagram of the structure of a middle box of the ultrasonic density detector with high stability;

FIG. 3 is a schematic structural view of a winding device in an ultrasonic density detector with high stability;

FIG. 4 is a schematic structural view of a probe assembly in an ultrasonic density probe with high stability according to the present invention;

FIG. 5 is a schematic diagram of a control column in an ultrasonic density detector with high stability according to the present invention;

fig. 6 is a schematic structural diagram of a rotating ring in an ultrasonic density detector with high stability.

In the figure: 1. a case; 2. a case cover; 3. a host; 4. a connecting wire; 5. a grab handle; 6. a housing; 7. an acoustic transducer; 8. positioning columns; 9. a rotating ring; 10. a limit bar; 11. a limit groove; 12. a control column; 13. a guide post; 14. a guide groove; 15. a winding shaft; 16. a limiting disc; 17. a bayonet; 18. a knob; 19. friction strips.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the invention.

The invention aims to solve the problems that in the prior art, when an ultrasonic detector detects an object with a curved surface or an irregular surface, the ultrasonic detector is relatively unstable, deflection is easy to occur in the detection process, a measurement result is inaccurate, and the measurement precision is affected.

Referring to fig. 1-2, an ultrasonic density detector with high stability comprises a box body 1, wherein abox cover 2 is hinged on the box body 1, a lock catch is arranged between the box body 1 and thebox cover 2, thebox cover 2 can be opened and closed, a handle is arranged on the side wall of the box body 1, the ultrasonic density detector is convenient to carry, ahost 3 is arranged in the box body 1, and a display, a control button, an ultrasonic probe interface and a data transmission interface are arranged on thehost 3.

The detector also comprises a probe assembly, a detachable connectingwire 4 is arranged between the probe assembly and thehost computer 3, and when the detector is used, after the probe assembly is connected with an ultrasonic probe interface on thehost computer 3 through the connectingwire 4, thehost computer 3 controls the probe assembly to generate short and strong sound pulses to manufacture sound waves. When the sound wave encounters an object with different acoustic impedances, part of the sound wave is reflected and returns to the probe, and an echo is formed. The sound waves return to the probe assembly, similar to the sound waves emitted by the probe assembly, except that the process is exactly reversed. The returning sound waves oscillate the unit of the probe assembly and convert the oscillations into electrical pulses that are sent by the probe assembly to thehost computer 3 for processing into identifiable signals.

Referring to fig. 1, a plug is provided at one end of the connectingwire 4 far away from the probe assembly, and the plug is adapted to the ultrasonic probe interface, and when in use, the plug on the connectingwire 4 is inserted into the ultrasonic probe interface for use.

Referring to fig. 2-3, still including setting up the coiling mechanism in box 1, the coiling mechanism is including setting up the chamber of accomodating in box 1, accomodating the intracavity rotation and being provided with the coilingshaft 15, after the use, pull out the plug from the ultrasonic probe interface and fix on the coilingshaft 15, rotate the coilingshaft 15 and can be with connectingwire 4 rolling up the arrangement induction on the coilingshaft 15, reduce connectingwire 4 occupation space, convenient to use, coaxial fixed being provided with on the coilingshaft 15 is spacingdish 16, can block connectingwire 4 through spacingdish 16, prevent the rotation of coilingshaft 15 is influenced with box 1 inner wall friction when connectingwire 4 is convoluteed, and set up thebayonet 17 that is used for fixed plug on the coilingshaft 15, through setting upbayonet 17, be convenient for fix the plug.

Referring to fig. 2-3, the windingshaft 15 penetrates through the case 1, and aknob 18 is fixedly arranged at one end of the windingshaft 15, which is located outside the case 1, and the windingshaft 15 can be controlled to rotate by rotating theknob 18, so that winding and unwinding of the connectingwire 4 are realized, theknob 18 is attached to the outer wall of the case 1, friction strips 19 are arranged on the surfaces of theknob 18 attached to the case 1, so that theknob 18 is kept in an original state under the action of non-external force, and theknob 18 cannot be easily rotated under the action of non-external force through the friction between the friction strips 19 and the case 1, so that the windingshaft 15 is reduced to rotate under the action of non-manual control, and the connectingwire 4 is wound and disordered.

Referring to fig. 4-6, the probe assembly includes grab handle 5, fixed shell 6 that sets up in grab handle 5 tip, through setting up grab handle 5, be convenient for the staff to hold during the use, the operation is more convenient, the shell 6 bottom is provided with acoustic transducer 7, acoustic transducer 7 is the supersound and receives the unit, be used for producing the ultrasonic wave, slide on shell 6 and be provided with a plurality of reference columns 8, reference column 8 along shell 6 axial setting, be provided with spring one between reference column 8 and the shell 6, can compress spring one when reference column 8 offsets with the object surface, make reference column 8 shrink to shell 6 inside, a plurality of reference columns 8 are distributed around acoustic transducer 7 circumference array, set up in the shell 6 and be used for carrying out spacing stop gear to reference column 8, when detecting the object, through supporting the probe assembly to the object surface, make reference column 8 stretch out according to object surface's profile, and through setting up stop gear, can carry out axial spacing to the position of a plurality of reference columns 8, make reference column 8 keep original state in the testing process, provide sufficient holding power to the probe assembly, make the probe assembly be difficult for detecting the skew when not producing in testing the process, stability has improved.

Referring to fig. 4-6, the stop mechanism includes rotating the swivel becket 9 that sets up in shell 6, the swivel becket 9 outer wall is provided with the spacing 10 of multiunit corresponding reference column 8, there is blank region between two adjacent sets of spacing 10, a plurality of spacing 11 have been seted up to the reference column 8 outer wall, a plurality of spacing 11 are along the axial equidistance distribution of reference column 8, when spacing 10 rotates along with swivel becket 9, when spacing 10 card goes into spacing 11, carry out axial spacing to reference column 8, make reference column 8 can not carry out axial slip again, keep original state, at this moment under the cooperation of a plurality of reference columns 8, acoustic transducer 7 can keep stable in the plane, guarantee to detect data accuracy, and the distribution length of spacing 11 is greater than the portion that reference column 8 surpassed shell 6, make reference column 8 no matter to which position, all have spacing 11 that can cooperate with spacing 10, shell 6 center slip is provided with the control column 12 that runs through swivel becket 9, swivel becket 9 and control column 12 swing joint, be provided with two spring second between control column 12 and the shell 6, make two spring 12 and control column 12 stretch out of and control column 12 and axial direction change and control column 12 and the control structure, when setting up and rotating at the control column 9 and rotating at the limit structure, the control column 12 and rotating at all times, the moment, the control column is in the axial direction of the control structure of the control is stretched out of the control column through the swivel becket and the control column 9.

Referring to fig. 4-6, the transmission structure includes aguide post 13 fixedly disposed on the inner wall of therotary ring 9, aguide slot 14 disposed obliquely is provided on the outer wall of thecontrol post 12, theguide post 13 extends into theguide slot 14 and abuts against the inner wall of theguide slot 14, when thecontrol post 12 is pressed, thecontrol post 12 moves downward, the side wall of theguide slot 14 abuts against theguide post 13, theguide post 13 moves along the contour of theguide slot 14, therotary ring 9 is driven to rotate, thelimit bar 10 is clamped into thelimit slot 11, thepositioning post 8 is in an axial locking state at this time, a supporting force is provided for theacoustic transducer 7, after thecontrol post 12 is released, thecontrol post 12 is reset under the action of the elasticity of the spring two, so that thelimit bar 10 is separated from thelimit slot 11, and at this time, thepositioning post 8 is restored to an active state.

Referring to fig. 4-6, a sliding port with a regular hexagon cross section is formed in thecasing 6, thecontrol column 12 and a part of the sliding section of the sliding port are also regular hexagons, and thecontrol column 12 is circumferentially limited by the regular hexagon sliding port, so that thecontrol column 12 does not deflect circumferentially while axially sliding, thecontrol column 12 is ensured to be circumferentially stable, and thecontrol column 12 does not rotate circumferentially to influence the driving of therotating ring 9 when theguide groove 14 abuts against theguide column 13.

The specific working principle of the invention is as follows:

when the ultrasonic probe is used, the plug on the connectingwire 4 is spliced with the ultrasonic probe interface for use, the couplant is smeared on the surface of an object to be detected, a staff holds thegrab handle 5, theacoustic transducer 7 is smeared on the surface of the object and vertically props against the propping pressure of the couplant, thepositioning column 8 stretches and contracts according to the outline of the surface of the object, when theacoustic transducer 7 contacts the surface of the object, thecontrol column 12 is pressed, thecontrol column 12 moves downwards, the side wall of theguide groove 14 props against theguide column 13, theguide column 13 moves along the outline of theguide groove 14, therotating ring 9 is driven to rotate, the limitingstrip 10 is clamped into the limitinggroove 11, at the moment, thepositioning column 8 is in an axial locking state, a supporting force is provided for theacoustic transducer 7, thepositioning column 8 keeps the original state in the detection process, a sufficient supporting force is provided for the probe assembly, the probe assembly is not easy to deviate in the detection process, and the stability of the probe assembly in the detection process is improved;

after the detection is finished, after thecontrol column 12 is loosened, thecontrol column 12 is reset under the action of the elastic force of the second spring, so that thelimit bar 10 is separated from thelimit groove 11, and at the moment, thepositioning column 8 is restored to an active state, thereby facilitating the detection of the next positioning point;

after the use is finished, the plug is clamped into thebayonet 17, therotation knob 18 can control the rotation of the windingshaft 15, winding of the connectingwire 4 is achieved, the occupied space of the connectingwire 4 is reduced, and the use is convenient.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (8)

1. The ultrasonic density detector with high stability comprises a box body (1), wherein a box cover (2) is hinged to the box body (1), and a lock catch is arranged between the box body (1) and the box cover (2), and the ultrasonic density detector is characterized in that a host machine (3) is arranged in the box body (1), and a display, a control button, an ultrasonic probe interface and a data transmission interface are arranged on the host machine (3);

the detector further comprises a probe assembly, a detachable connecting wire (4) is arranged between the probe assembly and the host computer (3), the probe assembly comprises a grab handle (5) and a shell (6) fixedly arranged at the end part of the grab handle (5), an acoustic transducer (7) is arranged at the bottom end of the shell (6), a plurality of positioning columns (8) are slidably arranged on the shell (6), a first spring is arranged between each positioning column (8) and the shell (6), a plurality of positioning columns (8) are distributed around the circumferential array of the acoustic transducer (7), and a limiting mechanism used for limiting the positioning columns (8) is arranged in the shell (6).

2. The ultrasonic density detector with high stability according to claim 1, wherein a plug is arranged at one end of the connecting wire (4) far away from the probe assembly, and the plug is matched with the ultrasonic probe interface.

3. The ultrasonic density detector with high stability according to claim 1, wherein the limiting mechanism comprises a rotating ring (9) rotatably arranged in a housing (6), a plurality of groups of limiting strips (10) corresponding to the positioning columns (8) are arranged on the outer wall of the rotating ring (9), a plurality of limiting grooves (11) are formed in the outer wall of the positioning columns (8), when the limiting strips (10) are clamped into the limiting grooves (11), the positioning columns (8) are axially limited, a control column (12) penetrating through the rotating ring (9) is slidably arranged in the center of the housing (6), a second spring is arranged between the control column (12) and the housing (6), and a transmission structure is arranged between the control column (12) and the rotating ring (9).

4. A high stability ultrasonic density probe according to claim 3, wherein a plurality of said limit grooves (11) are equally spaced axially along the positioning column (8), and the spacing grooves (11) are longer than the portion of the positioning column (8) beyond the housing (6).

5. The ultrasonic density detector with high stability according to claim 3, wherein the transmission structure comprises a guide post (13) fixedly arranged on the inner wall of the rotating ring (9), a guide groove (14) obliquely arranged is formed in the outer wall of the control post (12), and the guide post (13) extends into the guide groove (14) and abuts against the inner wall of the guide groove (14).

6. The ultrasonic density detector with high stability according to claim 3, wherein the casing (6) is provided with a sliding port with a regular hexagonal cross section, and the section of the control column (12) sliding with the sliding port is also regular hexagonal.

7. The ultrasonic density detector with high stability according to claim 2, further comprising a winding device arranged in the box body (1), wherein the winding device comprises a containing cavity arranged in the box body (1), a winding shaft (15) is rotationally arranged in the containing cavity, two limiting discs (16) are coaxially and fixedly arranged on the winding shaft (15), and a bayonet (17) for fixing a plug is formed in the winding shaft (15).

8. The ultrasonic density detector with high stability according to claim 7, wherein the winding shaft (15) penetrates through the box body (1), a knob (18) is fixedly arranged at one end of the winding shaft (15) located outside the box body (1), the knob (18) is attached to the outer wall of the box body (1), friction strips (19) are arranged on the surfaces, attached to the box body (1), of the knob (18), and the knob (18) is kept in an original state under the action of no external force.

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