KR102210591B1 - Assistance apparatus for measuring strength or crack of concrete using ultrasonic pulse - Google Patents

Abstract

The present invention relates to an auxiliary device for measuring strength or cracks of concrete by an ultrasonic method, capable of increasing the accuracy and reliability of measurement. The auxiliary device of the present invention comprises: a horizontal support provided as a bar- or rod-shaped body; a fixing member having a first probe mounting unit; a moving member having a second probe mounting unit; a forward and backward adjustment means coupled to adjust forward and backward movement with respect to the horizontal support; a rotation adjustment means coupled to adjust rotational movement with respect to the horizontal support; and a support member for supporting the rotation adjustment means in a downward direction.

Description

Auxiliary device for measuring concrete strength or crack by ultrasonic method{ASSISTANCE APPARATUS FOR MEASURING STRENGTH OR CRACK OF CONCRETE USING ULTRASONIC PULSE}

The present invention relates to an auxiliary device for measuring concrete strength or crack by ultrasonic method, and more particularly, by using together with a rotation adjusting means and a forward and backward adjusting means, various concrete structures having a vertical, horizontal, or inclined structure In response to the structure, it is possible to measure the strength or cracks, and to increase the adhesion to the point of the concrete, and to increase the measurement accuracy and reliability as well as work efficiency in the field. It relates to a dragon auxiliary device.

In general, the ultrasonic method, one of the non-destructive testing methods of various concrete structures, measures the time of ultrasonic waves propagating through the concrete and converts it to speed, and then measures the dynamic properties, strength, crack depth, and internal defects of the concrete from this value. That's how to do it.

This ultrasonic method selects a measuring point on the concrete surface, avoiding the place where thick aggregates are exposed, reinforced bars, corners, etc., and removes impurities and plaster on the surface using a grinder, and then there is no void between the measuring surface. Apply grease, etc. to prevent it, and make it close enough to the measuring surface by contacting the sending and receiving probes.

At this time, the sending and receiving probes set the initial value using the reference bar, and then the sending and receiving probes are spaced at the point of the concrete surface and placed in close contact. Measure the strength, etc. for the side point area.

Here, one of the sending and receiving probes is moved at 10cm intervals compared to the fixed point reference, and the strength of the concrete for each point is measured and investigated using ultrasonic waves while changing the point of the point. This is used for structural safety diagnosis. Are doing.

However, when measuring the strength or crack of concrete by the conventional ultrasonic method, an ultrasonic flaw detector is used, but the sending and receiving probes connected to the ultrasonic flaw detector are respectively attached to both hands and maintained at a certain distance to compare any one to the reference point. It has to be arranged and fixed in close contact with the concrete surface, which is a stationary point where the distance is maintained, and it is troublesome and inconvenient to keep the contact and fixed state of the sending and receiving probes until the measurement by sending and receiving ultrasonic waves. There was this.

In particular, when the concrete measurement part is on the ceiling surface rather than the wall, there is a difficulty in properly contacting the sending and receiving probes to the concrete surface and maintaining them, and it is not possible to apply uniform pressure to the sending and receiving probes. As a problem, there was a problem of increasing the measurement error when measuring the strength or crack of the concrete side and a problem of poor measurement reliability.

On the other hand, when looking at the prior art document related to the measurement aid for ultrasonic measurement using the ultrasonic method on the concrete side, Korean Patent No. 10-1248444 (Patent Document 1) says "The piston rod for pumping and discharging grease to the outside is A piston plate protruding and integrally connected to the piston rod to pressurize grease is provided inside, and a grease storage cylinder is provided in a structure with a grease discharge port formed at one side of the lower end and integrally mounted on the upper surface of the support frame; A fixed clamp integrally mounted on the bottom surface to clamp the fixed transducer; a handle integrally formed at the other end of the supporting frame; extending integrally while having a predetermined length on one side of the supporting frame, A sliding rail in which a ruler at intervals of 10 cm indicating the moving distance of the moving transducer is engraved; a moving clamp that is slidably fastened to a rail groove of the sliding rail to clamp the moving transducer; and integrally with one side of the moving clamp And a grease spraying nozzle connected to the; One end is connected to the grease outlet of the grease reservoir, and the other end is a concrete ultrasonic measurement aid comprising a flexible tube connected to the grease spraying nozzle.

In addition, in Korean Patent Registration No. 10-1819032 (Patent Document 2), "a sender adapter to which a transmitting probe is fixed; a receiver adapter horizontally spaced from the sender adapter and to which the receiving probe is fixed; and the sender adapter, and A distance adjusting unit in which the receiver adapter is coupled in a sliding manner; wherein one end and the other end in a direction orthogonal to a direction in which the transmitting probe and the receiving probe are accommodated are mutually penetrated to adjust the distance It proposes and discloses a "concrete ultrasonic measuring auxiliary device including a sliding part coupled to the part in a sliding manner."

In addition, in Korean Patent Registration No. 10-2089901 (Patent Document 3), "the oscillator and the receiver are electrically connected to the measuring device by a first cable and a second cable, respectively, and the oscillator is controlled by a first elastic means. 1 is connected to the pressing unit, the receiver is connected to the second pressing unit by a second elastic means, a first pressing unit is provided above the first pressing unit, and a second pressing unit is provided above the second pressing unit And connected to the first pressing unit by placing a first stick unit under the first pressing unit, and connected to the second pressing unit by placing a second stick unit under the second pressing unit, and the first pressing unit , The oscillator is located inside the first support part, the second pressing part, the receiver is located inside the second support part, and at least one first guide part is provided on the inner surface of the first support part, and the first At least one first groove portion is provided on the outer surface of the pressing portion, the first guide portion moves along the first groove portion, and at least one second guide portion is provided on the inner surface of the second support portion, and the second pressure An ultrasonic measuring aid for measuring cracks in a concrete structure moving along the second groove by having at least one second groove on the outer surface of the unit is proposed and disclosed.

However, the above Patent Documents 1, 2, and 3 can be said to have a difference in the technical configuration and usage method from the present invention proposed below.

Korean Patent Publication No. 10-1248444 Republic of Korea Patent Publication No. 10-1819031 Korean Patent Publication No. 10-2089901

The present invention solves the above-described conventional problems and has been conceived in consideration thereof, and by using a rotation adjustment means and a forward/reverse adjustment means together, the strength or strength in response to various structures of various concrete structures such as vertical, horizontal, or inclined structures Not only does it support crack measurement, but it also helps to increase the adhesion of the concrete to the measuring point of the probe (receiving and sending probes), increasing work efficiency in the field, and increasing measurement accuracy and reliability. Its purpose is to provide an auxiliary device for measuring concrete strength or crack by an ultrasonic method.

The present invention increases the contact state of the outgoing probe and the receiving probe used for measuring the strength or crack of concrete using ultrasonic waves on the measuring point of the concrete surface while maintaining the same fixed state for the duration of the measurement. The purpose of this is to provide an auxiliary device for measuring concrete strength or cracks by an ultrasonic method that minimizes measurement errors during measurement and increases measurement reliability.

An object of the present invention is to provide an auxiliary device for measuring concrete strength or crack by ultrasonic method so as to improve convenience when measuring concrete side strength or crack by ultrasonic method.

An object of the present invention is to provide an auxiliary device for measuring concrete strength or crack by ultrasonic method, which enables a simple and accurate position of a point portion of concrete for strength or crack measurement by mounting and utilizing a laser point. .

The auxiliary device for measuring the strength or crack of concrete by the ultrasonic method according to the present invention for achieving the above object, sends ultrasonic waves in a state in which the ultrasonic transmitting and receiving probes are in contact with the concrete surface, In the auxiliary device for measuring concrete strength or crack by ultrasonic method for use in measuring, the horizontal support having a predetermined length but having a point on the upper surface at 10cm intervals and provided with a rod-shaped or rod-shaped body; A fixing member fixedly coupled to the horizontal support or support-coupled so as to be movable on the horizontal support, and having a first probe mounting portion for fixedly mounting the receiving probe; A movable member that is supported and coupled to be position movable on the horizontal support, is spaced apart from the fixing member, and has a second probe mounting portion for fixing and mounting an originating probe; A forward and backward adjustment means for adjusting the forward and backward movement with respect to the horizontal support, and for maintaining the sending and receiving probes in close contact with the concrete surface through the forward arrangement of the horizontal support; A rotation adjusting means for adjusting the direction of the sending and receiving probes in correspondence with a concrete surface of a vertical surface, a horizontal surface, or an inclined surface structure by adjusting a rotation angle of the horizontal support side by adjusting a rotational movement with respect to the horizontal support; And a support member that supports the rotation adjustment means in a downward direction and enables ground installation at a measurement location with respect to the auxiliary device.

In addition, in the present invention, more various features and embodiments may exist, and various features and embodiments will be described in detail below.

According to the present invention, it is possible to support convenient measurement of strength or crack in response to various structures of various concrete structures such as vertical, horizontal or inclined structures by providing and utilizing a rotation adjusting means and a forward and backward adjusting means together. It is possible to maintain uniform contact fixation while increasing the adhesion of the concrete to the stationary point of the and outgoing probe, and achieve usefulness that can increase measurement accuracy and reliability as well as increase work efficiency in the field. .

According to the present invention, it is possible to achieve the usefulness of displaying a simple and accurate position on a point portion of a concrete surface for strength or crack measurement by mounting and utilizing a laser point.

According to the present invention, it is possible to maintain a fixed state while increasing the adhesion of the concrete surface to the sending and receiving probes used for ultrasonic concrete strength measurement, and to provide a uniform adhesion for the measurement time, when measuring concrete strength or cracks. It is possible to reduce measurement errors, and through this, it is possible to achieve usefulness that can increase measurement reliability.

1 and 2 are perspective views showing an auxiliary device for measuring concrete strength or crack by an ultrasonic method according to an embodiment of the present invention.
3 is a view showing a state of use in which the transducer is arranged forward using the forward and backward adjustment means in the auxiliary device for measuring concrete strength or crack by the ultrasonic method according to an embodiment of the present invention.
4 is a front view showing an auxiliary device for measuring concrete strength or crack by ultrasonic method according to an embodiment of the present invention.
FIG. 5 is a view showing a state in which a probe is in close contact with a concrete surface by using a rotation adjustment means and a forward/rear adjustment means in an auxiliary device for measuring concrete strength or crack by an ultrasonic method according to an embodiment of the present invention. to be.
6 is a view showing a state of use of indicating the location of a point on a concrete surface as an object by using a laser pointer in an auxiliary device for measuring concrete strength or crack by an ultrasonic method according to an embodiment of the present invention.
7 is a view showing another example of the forward and backward adjustment means in the auxiliary device for measuring concrete strength or crack by ultrasonic method according to an embodiment of the present invention.

A preferred embodiment of the present invention will be described with reference to the accompanying drawings, and it will be possible to better understand the objects and configurations of the present invention, and features thereof, through such detailed description.

Auxiliary device 100 for measuring concrete strength or crack by ultrasonic method according to an embodiment of the present invention, as shown in Figs. It includes a horizontal support 110, a reference member 120, a moving member 130, a forward and backward adjustment means 180, a rotation adjustment means 140, and a support member 150.

In addition, it may further include a laser pointer 160 for use in displaying the side position of the point portion of the concrete.

The horizontal support 110 is provided as a rod-shaped or rod-shaped body having a predetermined length, and the measuring points 111 are displayed at intervals of 10 cm on the upper surface.

The measuring point 111 allows the moving member 130 to be conveniently and accurately moved and used at 10 cm intervals while the reference member 120 is fixed to the reference point on the horizontal support 110.

At this time, the measuring point 111 may be provided in the form of a fastening hole by drilling a hole other than a scale type or an indication type mark. Through this, the reference member 120 and the moving member 130 together with the point mark It can be configured to be used for fixing the position on the horizontal support 110.

A mounting hole 112 for inserting and fixing the laser pointer 160 may be provided in front of the horizontal support 110 at 10 cm intervals.

The reference member 120 is fixedly coupled to the horizontal support 110 or supported and coupled to the position movable on the horizontal support 110, and a first probe mounting portion 121 for fixing and mounting the receiving probe 2 Includes.

The first probe mounting unit 121 may be provided to fix the receiving probe 2 having the shape of a circular block body by inserting it in the rear direction or by inserting it in the upper direction.

The reference member 120 is a moving body 122 is supported and coupled on the horizontal support so as to be slidable and fixed on the horizontal support 110, and is positioned on the upper surface of the moving body to fix and mount the receiving probe 2 It may be provided in a form in which the first probe mounting portion 121 is integrally coupled.

A fixing hole is formed in the moving body 122, and the position can be fixed by fastening a fixing bolt or a fixing pin in a matched state by matching it with the point 111 having a fastening hole structure of the horizontal support 110. have.

The movable member 130 is supported and coupled to be movable in position on the horizontal support 110, is spaced apart from the reference member 120, and a second probe mounting part 131 for fixing and mounting the sending probe 1 Includes.

The second probe mounting part 131 may be provided to be fixedly mounted by inserting and fitting the outgoing probe 1 having the shape of a circular block body from the rear direction or by inserting and fitting from the upper direction.

The moving member 130 is a moving body 132 is supported and coupled on a horizontal support so as to be able to slide and fix on the horizontal support 110, and is positioned on the upper surface of the moving body to fix and mount the outgoing probe 1 It may be provided in a form in which the second probe mounting portion 131 is integrally coupled.

Here, a fixing hole is formed in the moving body 132, and a fixing bolt or a fixing pin is fastened in a matching state by matching it with the point 111 having a fastening hole structure of the horizontal support 110. Can be fixed.

In the present invention, a reference member in the form of forming an opening 113 having a structure that penetrates vertically in the longitudinal direction of the horizontal support 110 and inserting and disposing the moving bodies 122 and 132 in the opening 113 120) and the movable member 130 may be provided to be slidable, respectively.

Here, a rubber compression packing (not shown) is mounted on the first probe mounting portion 121 on the side of the reference member 120 and the second probe mounting portion 131 on the moving member 130 side, respectively, and exposed in the inward direction. The receiving probe (2) and the transmitting probe (1) are mounted and fixed respectively to prevent slipping when used for measurement and to ensure measurement stability.

The forward and backward adjustment means 180 is coupled to adjust the forward and backward movement with respect to the horizontal support 110, and the outgoing probe 1 which is a measurement sensor for ultrasonic method measurement through the forward arrangement on the horizontal support 110 It is a component to closely adhere to the concrete surface with uniform pressure on the sending and receiving probes (1) and receiving probes (2) while allowing the receiving probe (2) to be in close contact with the concrete surface and maintain the state in close contact.

The forward/reverse adjustment means 180 is of one embodiment type, a rack 181 having a front end fixedly coupled to the rear surface of the horizontal support 110 or inserting and attaching a front end to be connected and assembled, and the rack 181 The pinion 182 is rotatably provided by being supported on a support body that is gear-coupled and spaced at both sides, and a housing 183 that includes and covers the pinion 182 and supports the rack 181, , It includes a rotating handle 184 that is connected to the pinion 182 in a state exposed to the outside of the housing 183 and provided to adjust the rack 182 to move back and forth by rotating the pinion 182. .

The forward and backward adjustment means 180 is a different embodiment, as shown in FIG. 7, the front end is fixedly coupled to the rear of the horizontal support 110, and the rear end of the rotational assembly 141 on the side of the rotation adjustment means 140 Link assembly (185) (186) is fixedly coupled to the upper surface and provided to be variable by contraction or expansion, and the link assembly (185) (186) is located in the center of the link assembly (185) (186) It can be configured with a ladder cutter including a rotation adjustment bolt 187 to induce expansion.

The link assembly is disposed to face the first link assembly 185 screwed to the rotation adjustment bolt 1867 while the two links are hinged, and the two links are hinged. It is provided with a second link assembly (186) screwed to the rotation adjustment bolt (187).

The rotation adjustment bolt 187 is located at the center of the first link assembly 185 and the second link assembly 186.

The front end of the first link assembly 185 is fixedly coupled to the rear surface of the horizontal support 110, and the rear end of the second link assembly 186 is fixed to the upper surface of the rotational assembly 141 on the side of the rotation adjustment means 140 Combined, according to the rotational direction of the rotation adjustment bolt 187, the horizontal support 110 is arranged forward when expanded and the horizontal support 110 is arranged backward when contracted.

The forward/reverse adjustment means 180 is another embodiment, in which the front end is fixedly coupled to the rear of the horizontal support 110, and the rear end is fixedly coupled to the upper surface of the rotational assembly 141 of the rotational adjustment means 140, It can also be configured with a hydraulic or pneumatic actuator that allows the length to be varied in the front and rear direction.

That is, through the forward and backward adjustment means 180, the contact strength of the sending probe 1 and the receiving probe 2 is increased, and thus, the strength of the concrete is measured using the ultrasonic method. Compared to this, it can provide an advantage that can improve accuracy and reliability.

The rotation adjustment means 140 is coupled to adjust the rotational movement in the vertical direction with respect to the horizontal support 110, through which the first probe mounting portion 121 and the moving member 130 of the reference member 120 ) Can be freely adjusted so that the cross section of the second probe mounting portion 131 side faces a concrete surface having various structures, and ultimately, the cross-sections of the sending probe (1) and the receiving probe (2) are closely aligned with the concrete point. It is a component that supports easy contact and fixed arrangement.

The rotation adjustment means 140 is a component for adjusting the rotation angle by inducing the rotation of the horizontal support 110, and corresponds to a concrete surface having various structures such as a vertical surface, a horizontal surface, or an inclined surface structure. It is a configuration to adjust their direction to face.

The rotation adjustment means 140 is located at the lower side of the forward and backward adjustment means 180 to support a fixed coupling and forward and backward adjustment means 180, and the center of both sides of the rotation assembly 141 Alternatively, a rotation shaft 142 positioned in the lower center and fixedly coupled, and a rotation angle adjustment handle connected to one end of the rotation shaft 142 to adjust the rotation angle in the vertical direction with respect to the rotation assembly 141 ( 143), and the rotation angle adjustment handle 143, which is positioned between the rotation shaft 142 and the rotation angle adjustment handle 143 to be fixed to maintain the rotation angle in the currently adjusted state. A circular plate coupled to the support member 150 and fixedly arranged, and a fixed plate 144 having a plurality of fixed holes 144a continuously arranged on the circular plate in a circular arc direction or circumferential direction, and the rotation For fixing the rotation angle adjustment handle 143 by inserting into any one fixing hole 144a formed on the fixing plate 144 in a state in which the rotation angle of the rotation assembly 141 is adjusted through the angle adjustment handle 143 It includes a fixing pin (145).

In this case, a pin insertion hole is formed in the rotation angle adjustment handle 143 so that the fixing pin 145 is inserted and fixed from the outside of the rotation angle adjustment handle 143 with respect to the fixing pin 145.

Here, the fixing plate 144 may have a configuration for displaying a goniometer on the outer surface, and a rotation angle more precisely according to various formation structures (for example, a vertical surface, a horizontal surface, or an inclined surface) of the target concrete surface It can be provided to adjust.

The support member 150 is a component that supports the rotation adjustment means 140 in a downward direction, and enables ground installation and setting for the measurement auxiliary device 100 at a measurement location.

The support member 150 is provided as a square frame portion for the lower portion 152 to secure stability according to the ground installation of the measurement auxiliary device 100, and formed in a multi-stage structure with respect to the upper portion 151 to enable height adjustment. It is desirable to have.

A fastening hole is formed on the four sides of the lower surface of the square frame, and a fastening fixing pin 170 of a straight or wedge-shaped structure is fastened to each of the fastening holes so as to protrude downward, thereby providing a fastening fixing pin 170. By inserting and fixing on the ground, it can be configured to improve fixing power and support when using the measurement auxiliary device 100 side.

Here, the support member 150 may be used by fastening a wheel portion having a locking device in a state in which the fastening fixing pin 170 is separated from a fastening hole formed in the square frame portion, and through this, a measurement auxiliary device ( It can also be configured to improve mobility and work convenience in the field for 100).

In addition, the support member 150 displays a scale in the longitudinal direction on the outer surface of the upper portion 151 provided to be adjustable in height, so that accuracy can be increased when adjusting the height.

The laser pointer 160 is located on the front surface of the horizontal support 110 and is mounted to maintain 10 cm intervals based on the distance between the center points, and directs a laser beam toward the concrete surface as an object for strength or crack measurement. It is a component to be used to indicate the location of the station by irradiation.

The laser pointer 160 may be mounted in the form of being inserted using a plurality of mounting holes 112 formed at 10 cm intervals located on the front side of the horizontal support 110.

It is preferable that the laser pointer 160 and the mounting hole 112 are arranged at intervals of 6 or more so as to secure a measurement distance of 50 cm or more so as to be suitable for the intensity investigation and evaluation of the ultrasonic method according to KS F 2731.

The laser pointer 160 may be assembled, coupled or separated as necessary on a plurality of mounting holes 112 formed on the front surface of the horizontal support 110.

That is, the laser pointer 160 is provided to be detachable on the horizontal support 110.

In addition, the laser pointer 160 is equipped with a magnification lens at the tip from which the laser beam is emitted so that the linear laser beam is irradiated to the concrete surface by adjusting the magnification of the laser beam. At the same time, it is possible to provide convenience according to the work of applying grease to the point area.

Here, when the laser pointer 160 is mounted with a magnification lens to expand the diameter of the linear laser beam, it is preferable to expand the diameter to a size corresponding to the diameter of the measuring sensor.

The state of use of the auxiliary apparatus 100 for measuring concrete strength or crack by the ultrasonic method according to the present invention having the above-described configuration will be described as follows.

First, in a state in which the reference member 120 and the moving member 130 are moved at one point so as not to cover the plurality of mounting holes 112 formed on the front side of the horizontal support 110, a plurality of mounting holes ( 112), the laser pointer 160 is inserted and fixed at intervals of 10cm, respectively.

In this way, in the state that the laser pointer 160 is inserted and fixed on the horizontal support 110 and arranged at 10cm intervals, the auxiliary device 100 is placed to face the target concrete surface (C), and then on the concrete surface (C). Using a laser beam irradiated at 10cm intervals, accurately mark the position of the measuring point at 10cm intervals on the concrete surface and apply grease.

At this time, for the laser pointer 160, the rotation angle with respect to the rotation assembly 141 is rotated by rotating the rotation adjustment means 140 side rotation angle adjustment handle 143 in the state of being inserted and fixed on the horizontal support 110 By adjusting the horizontal support 110, the front of the horizontal support 110 is aligned with the direction and spaced to face the target concrete surface (C), but the pin insertion hole of the rotation angle adjustment handle 143 and the fixing hole (144a) of the fixing plate 144 By inserting and fixing the fixing pin 145 in the matching state, the rotation angle of the horizontal support 110 side is fixed.

That is, by adjusting the rotation adjustment means 140 to the various formation structures of the concrete surface (C) (for example, a vertical surface, a horizontal surface, or an inclined surface), the front side of the horizontal support 110 is adjusted to the concrete It can be arranged facing face to face (C).

In this way, after marking the location of the measuring point at 10cm intervals on the concrete surface of the object using the laser pointer 160 and applying grease, the reference member 120 on which the receiving probe 2 is mounted on the horizontal support 110 is referenced. In addition to the fixed arrangement box, the moving member 130 on which the transmission probe 1 is mounted is placed at 10 cm intervals and then fixed.

Then, the forward and backward adjustment means 180 is adjusted, but by placing the horizontal support 110 forward, the front end surfaces of the receiving probe 2 and the sending probe 1 contact and adhere to the point of the target concrete surface C. Let it.

That is, through the forward and backward adjustment means 180, the front end surfaces of the receiving probe 2 and the sending probe 1 in a state in which the direction is adjusted to face and face the concrete surface by the rotation adjustment means 140 It is possible to adhere to the point portion of the concrete surface (C) with a uniform pressure, and provide an advantage of stably maintaining the contact state.

In this way, using the auxiliary device 100, the front end faces of the receiving probe 2 and the sending probe 1 are brought into contact with and in close contact with the point of the target concrete surface, and the target concrete surface ( The strength or cracking condition can be measured for the measuring point display of C).

And, after completing the strength or crack measurement for one point of the concrete surface (C), after reversing the receiving probe (2) and the sending probe (1) through the forward and backward adjustment means (180), horizontal support ( 110) with the reference member 120 as it is, moving only the moving member 130 at 10cm intervals and fixing it, and then the receiving probe (2) and the sending probe (1) are in close contact with the point of the concrete surface. The strength or crack can be measured using the method, and this process can be repeated to measure the strength or crack for the stationary point every 10 cm intervals.

Accordingly, through the auxiliary device 100 for measuring the strength or crack of concrete by the ultrasonic method according to the present invention, the rotation adjustment means 140 is provided and utilized, so that various structures of various concrete structures such as vertical, horizontal, or inclined Since the facing arrangement is possible, it can be supported to conveniently perform strength or crack measurement, and by providing and utilizing the forward/reverse adjustment means 180 together, the station point of concrete for the receiving probe (2) and the sending probe (1) As side adhesion can be increased and uniform fixation can be maintained, it is possible to increase work efficiency in the field compared to the conventional one, as well as to provide an advantage of increasing accuracy and reliability according to measurement.

The above-described embodiment is merely a description of a preferred embodiment of the present invention, and is not limited to this embodiment, and various modifications and variations are made by those skilled in the art within the spirit and scope of the present invention. It will be said that this can be achieved, and it will be said to fall within the scope of the technical rights of the present invention.

110: horizontal support 111: station
112: mounting hole 120: reference member
121: first probe mounting portion 130: moving member
131: second probe mounting portion 140: rotation adjustment means
150: support member 160: laser pointer
180: forward and backward adjustment means 181: rack
182: pinion 183: housing
184: rotating handle

Claims (8)

In the auxiliary device for measuring the strength or crack of concrete by ultrasonic method for use to measure the strength or crack of the concrete measurement site by passing ultrasonic waves while the ultrasonic transmitting and receiving probes are in contact with the concrete surface,
A horizontal support having a certain length, but having a point on the upper surface at 10cm intervals, and provided as a rod-shaped or rod-shaped body;
A fixing member fixedly coupled to the horizontal support or supported and coupled to be movable in position on the horizontal support, and having a first probe mounting portion for fixedly mounting a receiving probe;
A movable member that is supported and coupled to be movable in position on the horizontal support, is spaced apart from the fixing member, and has a second probe mounting portion for fixedly mounting an outgoing probe;
A forward and backward adjustment means for adjusting the forward and backward movement with respect to the horizontal support, and for maintaining the sending and receiving probes in close contact with the concrete surface through the forward arrangement of the horizontal support;
A rotation adjusting means for adjusting the direction of the sending and receiving probes in correspondence with a concrete surface of a vertical surface, a horizontal surface, or an inclined surface structure by adjusting a rotation angle of the horizontal support side by adjusting the rotational movement of the horizontal support;
A support member that supports the rotation adjustment means in a downward direction and enables ground mounting at a measurement location for an auxiliary device;
A plurality of laser pointers positioned on the front side of the horizontal support and mounted to maintain 10 cm intervals, and configured to display a position of a point by irradiating a laser beam toward the concrete surface; Auxiliary device for measuring concrete strength or crack by ultrasonic method comprising a. The method of claim 1,
The forward and backward adjustment means,
A rack having a front end fixedly coupled to the rear surface of the horizontal support or a rack for connecting and assembling by inserting and mounting the front end;
A pinion positioned on the rack and gear-coupled, supported by a support spaced at both sides, and rotatably provided;
A housing that covers the pinion and supports the rack;
A rotating handle which is connected to the pinion while being exposed to the outside of the housing and provided to adjust the rack to move backward and forward by rotating the pinion; Auxiliary device for measuring concrete strength or crack by ultrasonic method, comprising a. The method of claim 1,
The rotation adjustment means,
A rotating assembly positioned below the forward/reverse adjustment means to support a fixed coupling and forward/reverse adjustment means;
A rotation shaft located at the lower center of the rotation assembly and fixedly coupled;
A rotation angle adjustment handle connected to one end of the rotation shaft and provided to adjust a rotation angle in the vertical direction with respect to the rotation assembly;
It is a circular plate that is located between the rotation shaft and the rotation angle adjustment handle, and is fixedly arranged by being coupled to the support member, and there are a number of fixing holes continuously arranged in a circular arc direction or a circumferential direction on the circular plate. A fixed plate formed;
A fixing pin for fixing the rotation angle adjustment handle by inserting it into any one fixing hole formed on the fixing plate in a state in which the rotation angle of the rotation assembly is adjusted through the rotation angle adjustment handle; Including,
An auxiliary device for measuring concrete strength or crack by ultrasonic method, characterized in that a pin insertion hole is formed in the rotation angle adjustment handle to insert and fix the fixing pin in the outer direction of the rotation angle adjustment handle with respect to the fixing pin. delete The method of claim 1,
A plurality of mounting holes are formed at 10 cm intervals located on the front side of the horizontal support, and 6 or more are arranged at intervals to secure a measurement distance of 50 cm or more,
An auxiliary device for measuring concrete strength or crack by ultrasonic method, characterized in that the laser pointer is configured to be assembled, coupled or separated on the mounting hole on the horizontal support side. The method of claim 1,
A fastening hole is formed at the lower end of the support member, and a fastening fixing pin is fastened to the fastening hole so as to protrude downward, so that the fastening fixing pin is inserted into the ground and fixed to secure the fixing force and support when installing the auxiliary device Auxiliary device for measuring concrete strength or crack by ultrasonic method, characterized in that to configure. The method of claim 3,
An auxiliary device for measuring concrete strength or crack by ultrasonic method, characterized in that a goniometer is displayed on the outer surface of the fixing plate. The method of claim 1,
The forward and backward adjustment means,
Auxiliary device for measuring concrete strength or cracks by ultrasonic method, characterized in that it is any one selected from a ladder cutting machine, a hydraulic machine, and a pneumatic machine capable of extending the length toward the front and reducing the length toward the rear.

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