KR102596426B1 - Schmidt hammer strike point indicator for safety diagnosis of structures - Google Patents

Abstract

The present invention relates to a Schmidt hammer strike point indicator for displaying the strike point of a Schmidt hammer that measures the hardness of a structure during safety diagnosis. The Schmidt hammer striking point indicator for the safety diagnosis of a structure according to an embodiment of the present invention displays basic lines in a grid form to indicate the striking point for striking the Schmidt hammer. As such, a basic display panel formed with a straight guide groove, a display device installed in the guide groove and moving along the guide groove to display a basic line, and the basic display panel to display the basic line in parallel and spaced apart. An orthogonal guide that guides the movement of the basic display in a direction perpendicular to the straight line direction in which the sphere moves, and the basic display so that the basic display is positioned in parallel with the orthogonal guide or orthogonal to the orthogonal guide. The end of the stand is rotatably installed, and includes a display stand coupler for slidingly coupling the basic display stand to the orthogonal guide stand. Therefore, the hitting point can be accurately and easily displayed at various intervals.

Description

Schmidt hammer strike point indicator for safety diagnosis of structures}

The present invention relates to a Schmidt hammer strike point indicator for displaying the strike point of a Schmidt hammer that measures the hardness of a structure during safety diagnosis.

In general, when performing safety diagnosis of a structure, the durability of the structure is tested. Durability can be measured using radiation or ultrasound, but the equipment is expensive and the test takes a long time, so it is struck with a relatively simple Schmidt hammer. and test it.

To measure the hardness of a structure with a Schmidt hammer, 20 hitting points are marked at intervals of 30 to 50 mm in an area of 300 mm

However, the Schmidt hammer requires 20 striking points to be displayed regularly to obtain accurate results, but there was a problem in that it was not easy to mark the exact striking points by drawing a line using a ruler.

To solve this problem, the "Schmidt hammer striking point indicator for safety inspection and diagnosis" was previously disclosed in Korean Patent Publication No. 10-2506058 (announced on March 6, 2023).

The conventional Schmidt hammer impact point indicator for safety inspection and diagnosis includes a support frame supported on the surface of the structure; a marking tool that accommodates a plurality of marking members and is connected to the support frame so as to be able to move forward and backward so that the marking members mark striking points on the surface of the structure through forward movement; It includes a dust removal member that is movably mounted below the support frame and removes dust on the surface of the structure while moving along the surface of the structure, wherein the dust removal member is located inside the hub formed in the support frame. It is configured to include a rotating rod rotatably connected to and a dust removal rod formed at an end of the rotating rod to remove dust from the surface of the structure.

The conventional Schmidt hammer striking point indicator for safety inspection and diagnosis of this configuration had holes indicating 20 striking points in the support frame, so that it was possible to display the striking points easily and accurately.

However, the conventional Schmidt hammer striking point indicator for safety inspection and diagnosis described above is not only not easy to carry due to the large size of the striking frame, but also has a hole indicating the striking point in the striking frame at only one interval, so that it can be used in various ways. There was a problem where the hitting points could not be displayed at intervals.

The present invention was devised to solve the above-mentioned problems, and the problem to be solved by the present invention is to display basic lines at precise intervals by spacing basic display boards that display straight lines at regular intervals in orthogonal directions through orthogonal guide bars. By doing so, not only can the hitting point be displayed at precise intervals, but the basic display stand is rotatably coupled to the orthogonal guide through the display stand joint to minimize the carrying volume, enabling safety diagnosis of the structure that can be easily stored. The purpose is to provide a Schmidt hammer strike point indicator for.

In addition, in the present invention, gap grooves are formed at different intervals on the orthogonal guide, and a stopper part that can be positioned by selecting gap grooves at different intervals is formed on the display stand joint, so that the hitting point can be displayed at various intervals. The purpose is to provide a Schmidt hammer strike point indicator for safety diagnosis of existing structures.

In addition, the present invention provides safety diagnosis of a structure in which a pivot hinge is installed on an orthogonal guide to pivot and rotate the orthogonal guide, thereby accurately and easily displaying a baseline line perpendicular to the previous baseline and marking a hitting point. The purpose is to provide a Schmidt hammer strike point indicator for.

The Schmidt hammer striking point indicator for safety diagnosis of a structure according to an embodiment of the present invention to achieve the above-described task displays basic lines in a grid form to indicate the striking point for striking the Schmidt hammer. A Schmidt hammer striking point indicator for, a basic display table formed with a straight guide groove, an indicator installed in the guide groove to move along the guide groove and display a basic line, and to display the basic line in parallel and spaced apart. An orthogonal guide that guides the movement of the basic display in a direction perpendicular to the straight line in which the indicator moves, and the basic display is positioned in parallel with the orthogonal guide, or the orthogonal guide The end of the basic display panel is rotatably installed so as to be perpendicular to the base, and includes a display panel coupler for slidingly coupling the basic display panel to the orthogonal guide table.

The orthogonal guide has a plurality of first interval grooves formed along the longitudinal direction of the orthogonal guide so that the basic display can stop sliding at preset first intervals to display the basic line, and the basic display can have the first interval grooves formed along the longitudinal direction of the orthogonal guide. The longitudinal direction of the orthogonal guide at the second interval at a peripheral position different from the position where the first interval groove is formed on the orthogonal guide to indicate the basic line by indicating the basic line by sliding at every second interval that is wider or narrower than the interval. It may include a plurality of second interval grooves formed along.

The display stand coupler rotates around the display stand coupler so that the basic display stand is selected and caught at the first or second intervals on the orthogonal guide table and the sliding movement is stopped, so that the display stand coupler rotates around the display stand coupler to stop the sliding movement, so that the basic display stand is selected at the first or second interval on the orthogonal guide bar. You can include a stopper part that is caught by selecting .

The orthogonal guide may include a pivot hinge installed at an end of the orthogonal guide to rotate the orthogonal guide in a direction perpendicular to the current position to display a basic line orthogonal to the basic line to indicate the hitting point. there is.

According to the present invention, the basic display table moves along the orthogonal guide table and displays basic lines at regular intervals, thereby displaying the basic lines at accurate intervals, thereby obtaining accurate measurement values of the Schmidt hammer.

In addition, the basic display stand is rotatably coupled to the orthogonal guide stand through the display stand joint, so it can be easily carried while minimizing the volume.

In addition, different spacing grooves are formed on the orthogonal guide, and a stopper part that can be moved by selecting different spacing grooves is formed on the display bar joint, so that the striking point can be displayed at various intervals by forming basic lines at various intervals. there is.

In addition, by supporting the orthogonal guide to rotate from the initial position to the orthogonal position by the pivot hinge, the orthogonal lines that intersect each other can be accurately displayed to indicate the exact hitting point.

Figure 1 is a perspective view showing a Schmidt hammer impact point indicator for safety diagnosis of a structure according to an embodiment of the present invention.
Figure 2 is a partially exploded perspective view of the Schmidt hammer impact point indicator for safety diagnosis of a structure according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view of an indicator coupler constituting a Schmidt hammer strike point indicator for safety diagnosis of a structure according to an embodiment of the present invention.
Figure 4 is a plan cross-sectional view showing the stopper portion of the indicator joint constituting the Schmidt hammer strike point indicator for safety diagnosis of the structure according to an embodiment of the present invention.
Figure 5 is a diagram sequentially showing the order of displaying the hitting point through the Schmidt hammer hitting point indicator for safety diagnosis of a structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

As shown in Figures 1 and 5, the Schmidt hammer impact point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention may include a basic indicator 110.

This basic display unit 110 can guide the movement of the display sphere 120, which will be described below, in order to display a straight basic line.

The basic display panel 110 may be formed in a shape similar to a measuring stick with a scale marked on it, and the basic display panel 110 has a guide groove ( 111) may be formed through the middle portion of the basic display panel 110 along the longitudinal direction of the basic display device 110.

A scale may be formed on the basic display panel 110 to measure the moving distance of the display panel in the guide groove 111.

In addition, at one end of both ends of the basic display panel 110, a hinge axis 141 for rotatably coupling the basic display device 110 is formed to protrude from the display device coupler 140, which will be described below. , a pin hole through which the hinge axis 141 is coupled may be formed through.

As shown in Figures 1 and 5, the Schmidt hammer impact point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention may include an indicator sphere 120.

The indicator ball 120 can display the striking point (TK) on a target object (a structure for striking with a Schmidt hammer) to display the striking point (TK) through basic lines that are orthogonal to each other and intersect.

The indicator ball 120 is installed in the guide groove 111 of the basic display stand 110 and moves along the guide groove 111, and the indicator ball 120 is attached to the object being hit by a pen such as a marker, a marker pen, a ballpoint pen, or a pencil. , or may be implemented with chalk, and when the display sphere 120 is chalk, it includes a chalk holder that accommodates the chalk, and displays a straight basic line in the form of the chalk holder moving along the guide groove 111. You can.

Of course, when the display sphere 120 is implemented as a pen, a holder into which the pen can be inserted is installed to be slidable in the guide groove 111, and the pen is placed on the basic display unit 110 by inserting the pen into the holder. Can be installed.

As shown in Figures 1 to 5, the Schmidt hammer impact point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention may include an orthogonal guide stand 130.

This orthogonal guide stand 130 is installed in a direction perpendicular to the direction of displaying the basic lines on the basic display panel 110 so that a plurality of basic lines can be displayed side by side at preset intervals. ) can guide the movement of.

The orthogonal guide stand 130 may be formed in the shape of a cylinder, and both ends of the orthogonal guide stand 130 prevent the orthogonal guide stand 130 from rolling on the floor, and at the same time, the orthogonal guide stand 130 is provided with a basic display panel. A polygonal support portion 131 may be formed to prevent the display stand coupler 140 to be coupled to (110) from being separated.

In addition, on one or both of the support parts 131 located at both ends of the orthogonal guide 130, the orthogonal guide 130 initially draws a basic line and then draws a basic line in a perpendicular direction to form an intersection point. A pivot hinge 133 is installed to rotatably support the orthogonal guide 130 on the floor to pivot and rotate the orthogonal guide 130 in a direction orthogonal to the initial position to draw the striking point TK. It can be.

The pivot hinge portion 133 rotatably supports the pedestal on the floor so as to rotate the orthogonal guide 130 in the initial position in an orthogonal direction by rotating the orthogonal guide 130 in the initial position around the pivot hinge 133. can do.

At this time, although not shown in the drawing, a fixing protrusion is formed on one of the pivot hinge portion 133 and the pedestal to fix it in a state rotated 90° from the initial position of the orthogonal guide 130, and a fixing protrusion is formed on the other one. A fixing groove to be inserted may be formed.

Meanwhile, the pivot recognition part may be protruding from the base in the form of a bar and may function as a handle for holding the base in close contact with the target to support it in order to draw a basic line on the target through the indicator hole 120.

An interval groove 135 may be formed around the orthogonal guide 130 to stop the display joint 140 sliding along the orthogonal guide 130 at a preset interval.

At this time, the spacing groove 135 may include a first spacing groove 135a, a second spacing groove 135b, and a third spacing groove 135c.

A plurality of first spacing grooves 135a may be formed at first intervals along the longitudinal direction of the orthogonal guide 130, and the second spacing grooves 135b are orthogonal guides in which the first spacing grooves 135a are formed. A plurality of second guide bars may be formed along the longitudinal direction of the orthogonal guide bar 130 at circumferential positions spaced apart from the circumferential position of the bar 130.

In addition, the third spacing groove 135c is located at a circumferential position different from the circumferential position of the orthogonal guide bar 130 where the first spacing groove 135a and the second spacing groove 135b are formed. ) may be formed at third intervals along the longitudinal direction.

Here, the third interval may be wider than the second interval, and the second interval may be wider than the first interval.

For example, the first groove 135a, the second groove 135b, and the third groove 135c may be formed at 30° intervals around the orthogonal guide 130. If the first spacing between the first spacing grooves 135a is 30 mm, the second spacing between the second spacing grooves 135b may be 40 mm, and the third spacing between the third spacing grooves 135c may be 40 mm. The third spacing may be 50mm.

That is, when the basic display stand 110 slides on the orthogonal guide stand 130, the sliding movement is stopped at every third interval of 50 mm to display the basic lines side by side at 50 mm intervals, or the basic display stand 110 slides at every second interval of 40 mm. This can be stopped to display the basic lines side by side at 40 mm intervals, or the sliding movement can be stopped at every 30 mm, which is the first interval, so that the basic lines can be displayed side by side at 30 mm intervals.

In addition, the plurality of first spacing grooves 135a, second spacing grooves 135b, and third spacing grooves 135c are each drawn in parallel with at least five basic lines along the longitudinal direction of the orthogonal guide bar 130. Five or more can be formed so that

Of course, the orthogonal guide 130 is described as having a first spacing groove (135a), a second spacing groove (135b), and a third spacing groove (135c). However, the first spacing groove (135a) and the second spacing groove (135c) are Not only (135b) can be formed, but also the first groove (135a), the second groove (135b), and the third groove (135c) are formed around the orthogonal guide bar (130). ) may be further formed at intervals exceeding 30 mm.

As shown in Figures 1 to 4, the Schmidt hammer impact point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention may include an indicator coupler 140.

This display stand coupler 140 can connect the basic display stand 110 to the orthogonal guide stand 130.

The orthogonal guide bar 130 is inserted through the display bar coupler 140, so that the display bar coupler 140 can slide along the longitudinal direction of the orthogonal guide bar 130, and display The end of the basic display panel 110 may be rotatably coupled to the large mat 140 by the hinge axis 141 so that the basic display panel 110 is perpendicular to or parallel to the orthogonal guide table 130. .

At this time, a hinge shaft 141 is formed on one of the display stand coupler 140 and the basic display stand 110, and a hinge hole into which the hinge shaft 141 is inserted is formed on the other, so that they are inserted into each other. The basic display stand 110 can rotate in the display stand coupler 140.

In addition, when the basic display panel 110 is rotated and unfolded in a perpendicular direction in a folded state in parallel with respect to the orthogonal guide table 130, the display stand coupler 140 has an angle perpendicular to the basic display stand 110. A rotation limiter 143 may be formed to limit the rotation angle of the basic display panel 110 so that it does not deviate.

Of course, the basic display stand 110 may rotate from the display stand coupler 140 to one side or the other side about the hinge axis 141 and unfold to be perpendicular to the display stand coupler 140.

The display stand coupler 140 is configured with a stopper portion 145 elastically supported in the gap groove 135 to stop the sliding movement of the basic display stand 110 on the orthogonal guide stand 130 at a preset interval. You can.

When the stopper unit 145 slides the display bar coupler 140 in the longitudinal direction of the orthogonal guide bar 130, the stop ball 145a is inserted into the plurality of space grooves 135 located in the longitudinal direction to slide. When the movement is stopped and the display bar coupler 140 is forcibly slid again on the orthogonal guide bar 130, the stop ball 145a inserted into the spacing groove 135 is separated from the spacing groove 135 and moves again. Can move by sliding.

In the stopper portion 145, a stop ball 145a may be inserted into the space groove 135 by elastic force and supported by the ball support spring 145b in the ball groove 146b.

At this time, when the stop ball (145a) is separated from the spacing groove 135, the stop ball (145a) is located inside the ball groove (146b) and compresses the ball support spring (145b), and the stop ball (145a) is spaced. In the state inserted into the groove 135, the stop ball 145a can be inserted into the ball groove 146b by the elastic force of the ball support spring 145b.

Meanwhile, the stopper unit 145 includes a stop ball 145a, a ball support spring 145b, and a spacing adjustment ring 146 with a ball groove 146b rotatably installed in the display joint 140 to act as an orthogonal guide. Rotate the spacing adjustment ring 146 to the corresponding position of the first spacing groove 135a, the second spacing groove 135b, or the third spacing groove 135c located at different positions around the stand 130. You can select and position the stop ball (145a) in the desired form.

For example, when the stop ball (145a) is positioned at the corresponding position of the first gap groove (135a) by rotating the spacing adjustment ring (146), the display bar coupler ( 140) stops sliding at each first interval groove (135a) to display a basic line at the first interval, and rotates the interval adjustment ring 146 to make the stop ball (145a) correspond to the second interval groove (135b). When placed in a position where the display bar coupler 140 slides on the orthogonal guide 130, the sliding movement is stopped at every second interval groove 135b to display the basic line at the second interval, and the interval is adjusted. When the ring 146 is rotated to position the stop ball 145a at a position corresponding to the third gap groove 135c, the display bar coupler 140 sliding on the orthogonal guide 130 is positioned at the third gap. The sliding movement is stopped for each groove 135c, so that the basic line can be displayed at a third interval.

Here, in order to prevent the display stand coupler 140 from rotating together in the orthogonal guide stand 130 when the spacing adjustment ring 146 is rotated in the display stand coupler 140, the orthogonal guide stand 130 has a length. A guide groove 137 is formed along the direction, and a key-shaped guide protrusion 140b guided by the guide groove 137 may be formed to protrude on the inner circumference of the display stand coupler 140.

In addition, the spacing adjustment ring 146 has a stop ball (145a) located at a preset angle, for example, at a position corresponding to the first spacing groove (135a), the second spacing groove (135b), and the third spacing groove (135c). In order to select and fix the position of the stop ball (145a), a position fixing protrusion (146a) is formed on one of the spacing adjustment ring (146) and the display table coupler (140), and a position fixing protrusion (146a) is formed on the other one. A position fixing groove 140a into which (146a) is inserted may be formed.

In the embodiment, a position fixing protrusion (146a) is formed at a position corresponding to the stop ball (145a) in the spacing adjustment ring 146, and a position fixing protrusion (146a) is formed at the position of the display table coupler 140 corresponding to the position fixing protrusion (146a). Position fixing grooves 140a are formed at positions corresponding to the first spacing groove 135a, the second spacing groove 135b, and the third spacing groove 135c, and the position fixing protrusions 146a are positioned at each position fixing groove 140a. ), the stop ball (145a) is selectively positioned in the first spacing groove (135a), the second spacing groove (135b), or the third spacing groove (135c) so that the rotation of the spacing adjustment ring (146) is fixed. It was composed.

Here, the spacing adjustment ring 146 is installed to be movable up and down in the display table coupler 140 so that the position fixing protrusion 146a can be separated from the position fixing groove 140a in the display table coupler 140. , the spacing adjustment ring 146 is supported by the elastic force of the ring support spring 147 in the display table coupler 140 so that the position fixing protrusion 146a is inserted into the position fixing groove 140a and is in close contact with the elastic force. It can be.

For example, when changing the spacing for displaying the basic line, the spacing adjustment ring 146 is lowered from the display stand coupler 140 so that the ring support spring 147 is compressed to fix the position fixing protrusion 146a. After rotating the spacing adjustment ring 146 so that the position fixing protrusion 146a is located at the desired position of the spacing groove 135 while being separated from the groove 140a, a pressing force that forces the spacing adjusting ring 146 downward is applied. When released, the spacing adjustment ring 146 is raised due to the elastic force of the compressed ring support spring 147, and the spacing groove 135 is selected in such a way that the position fixing protrusion 146a is inserted into the position fixing groove 140a. It is possible to prevent the spacing adjustment ring 146 from rotating in this state.

At this time, a coupler flange portion that supports the ring support spring 147 from the display stand coupler 140 may be formed to protrude around the lower periphery of the spacing adjustment ring 146.

In addition, a spacing display portion indicating the spacing corresponding to each spacing groove 135 is formed in the position fixing groove 140a of the display stand coupler 140, making it easy to display the basic line from the outside through the spacing display portion. You can check and rotate the spacing adjustment ring (146) to the selected position.

In addition, a gap adjustment ring 146 is provided at the portion where the gap adjustment ring 146 is located in the display stand coupler 140 so that the movement of the stop ball 145a is not restricted when the gap adjustment ring 146 rotates and moves up and down. The stop ball (145a) can penetrate the entire movement area.

Let us explain the actions and effects between each component described above.

The Schmidt hammer strike point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention has a basic display panel 110 for displaying a straight basic line and an indicator hole along the longitudinal direction of the basic display device 110. A guide groove 111 is formed to guide the movement of (120), and in the guide groove 111, an indicator ball 120 indicating a basic line to indicate the hitting point (TK) is placed along the guide groove 111. It is installed to enable sliding movement.

The orthogonal guide 130 is formed in a bar shape, and a plurality of gap grooves 135 are formed in the longitudinal direction of the orthogonal guide 130, and the gap grooves 135 are at different first and second intervals. , and the first spacing groove (135a), the second spacing groove (135b), and the third spacing groove (135c) formed at third intervals are respectively positioned at different positions around the orthogonal guide band (130). 130), a plurality of them may be formed.

Supports 131 are formed on both sides of the orthogonal guide 130 to support the object being hit, and an orthogonal guide is provided with the support 131 as the center on either or both of the support parts 131 located on both sides. A pivot hinge 133 is installed to rotate the orthogonal guide 130 to a position perpendicular to the initial position.

Meanwhile, the orthogonal guide stand 130 and the basic display stand 110 are connected by a display stand coupler 140, and the orthogonal guide stand 130 is inserted through the center of the display stand coupler 140, The end of the basic display stand 110 is rotatably coupled to the display stand coupler 140 by a hinge hole and a hinge axis 141.

In addition, the display stand coupler 140 has a guide groove 137 in the orthogonal guide stand 130 to prevent the display stand coupler 140 from rotating in the orthogonal guide stand 130. It is formed along the longitudinal direction, and a guide protrusion 140b is formed to protrude on the inner periphery of the display stand coupler 140 and is inserted into the guide groove 137 to guide the sliding movement of the display stand coupler 140.

At the bottom of the display stand coupler 140, a stopper unit 145 is provided to select the first spacing groove (135a), the second spacing groove (135b), and the third spacing groove (135c) to stop the sliding movement according to each spacing. is composed.

The stopper unit 145 has a space adjustment ring 146 rotatably installed around the display stand coupler 140, and a ball groove 146b is formed on the inner circumference of the space adjustment ring 146, and the ball groove 146b A stop ball (145a) inserted into the spacing groove 135 is seated.

In addition, a position fixing protrusion (146a) is protrudingly formed on the upper part of the spacing adjustment ring 146, and the position fixing protrusion (146a) is inserted into the display table coupling port 140 corresponding to the position fixing protrusion (146a). A groove 140a is formed.

At this time, the position fixing protrusion 146a is formed at a position corresponding to the stop ball 145a of the spacing adjustment ring 146, and the position fixing groove 140a is the first spacing groove 135a and the second spacing groove 135b. ), and may be formed at each position corresponding to the third space groove (135c).

The spacing adjustment ring 146 is coupled to the display stand coupler 140 so as to be able to slide up and down so that the position fixing protrusion 146a is raised in the position fixing groove 140a formed in the display stand coupler 140. By combining, the rotation of the spacing adjustment ring 146 is fixed, and when moving downward, the position fixing protrusion 146a is separated from the position fixing groove 140a, and the spacing adjusting ring 146 becomes rotatable.

The spacing adjustment ring 146 is closely adhered by elastic force in the direction in which the position fixing protrusion 146a is inserted into the position fixing groove 140a in the display stand coupler 140 by the ring support spring 147.

The Schmidt hammer striking point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention configured in this way has a basic display 110 folded in parallel with the orthogonal guide 130 with respect to the orthogonal guide 130. It is rotated and unfolded in a perpendicular direction, and the display sphere 120 to display the basic line is installed on the basic display stand 110 so that it can be displayed on the floor.

Then, a position for marking the striking point (TK) is selected according to the size or location of the object to be hit, and the orthogonal guide bar 130 is brought into close contact with the object to be hit so that the support portion 131 is in close contact with the object to be hit.

At this time, the interval for displaying the hitting point (TK) is set in advance according to the size or location of the object to be hit, and the position fixing protrusion 146a of the spacing adjustment ring 146 is located at the desired interval according to the set interval (position fixing groove ( It is inserted into 140a) and fixed.

When rotating the spacing adjusting ring 146 to the desired spacing position, when the spacing adjusting ring 146 is moved downward from the display stand coupler 140, the ring support spring 147 is compressed, and the position fixing protrusion 146a ) is separated from the position fixing groove (140a), and in this state, the position fixing protrusion (146a) of the spacing adjustment ring 146 is rotated to be located in the position fixing groove (140a) indicating the desired spacing.

When the spacing adjusting ring 146 rotates to the desired position and releases the downward pressing force that lowers the spacing adjusting ring 146, the spacing adjusting ring 146 is moved to the display stand coupler 140 by the elastic force of the ring support spring 147. ), the position fixing protrusion (146a) is inserted into the set position fixing groove (140a).

When the gap is established by the spacing adjustment ring 146, the stop ball 145a is located at the position corresponding to the position fixing protrusion 146a, and the position fixing groove 140a is provided with a spacing groove 135 having a desired spacing. It is located in

In this set state, as shown in FIG. 5, when the display sphere 120 is moved along the guide groove 111 of the basic display stand 110, a straight basic line is displayed, and one basic line is displayed. When displayed, the display stand coupler 140 is slidably moved downward on the orthogonal guide stand 130.

When the display bar coupler 140 moves downward, the stop ball 145a is separated from the spacing groove 135, and when stopped by being caught in the spacing groove 135 located below, the orthogonal guide bar 130 again By moving the display sphere 120 along , at least four basic lines are displayed in the form of displaying basic lines spaced apart from the lower part of the previous basic line.

For example, if the stop ball 145a moves along the first spacing groove 135a according to the setting of the spacing adjustment ring 146, a basic line can be formed in units of 30 mm.

When four or more horizontal basic lines are displayed, the orthogonal guide 130 is moved in a direction perpendicular to the initial position while holding the pivot hinge 133 to display a vertical basic line on the horizontal basic line. Rotate it.

When the orthogonal guide 130 rotates in a direction perpendicular to the initial position, the basic display 110 overlaps the existing basic line to display a vertical basic line. 110) rotate downward.

At this time, when the basic display panel 110 rotates downward, the circumference of the basic display device 110 is caught by the rotation limiter 143 and the rotation is restricted at an orthogonal angle.

When the basic display stand 110 rotates downward, the basic display stand 110 is positioned vertically on the horizontal orthogonal guide stand 130, and the display stand joint 140 is installed on one side or the other side of the orthogonal guide stand 130. In the moved state, the display sphere 120 is moved along the guide groove 111 on the basic display stand 110 to display a basic line perpendicular to the previous basic line.

Then, when the vertical basic line is displayed, if the display stand coupler 140 is slid and moved on the orthogonal guide 130 to display at least 5 vertical basic lines, the stop ball is moved in the previous spacing groove 135. As (145a) is separated, it is inserted into the next gap groove 135, and the sliding movement is stopped, thereby displaying a vertical base line in a form that guides the position of the base line to be displayed in the next gap.

At this time, after displaying the horizontal basic line, when displaying the vertical basic line, the position of the spacing adjustment ring 146 was not changed, so the stop ball 145a is spaced in the spacing groove 135 at the previously set interval. Since the sliding movement stops along the line, it forms a grid with the same spacing as before, that is, 30mmX30mm.

When the grid is drawn like this, 20 intersection points are formed, and each intersection becomes a striking point (TK) for striking with a Schmidt hammer and performs a striking test.

Therefore, the Schmidt hammer striking point indicator 100 for safety diagnosis of a structure according to an embodiment of the present invention has a basic display 110 for displaying a straight line that moves along the orthogonal guide 130 to form a plurality of objects exactly side by side. By displaying the basic line, it is possible to display hitting points (TK) at accurate intervals.

In addition, the basic display stand 110 is rotatably installed on the orthogonal guide stand 130 by the display stand coupler 140, so that the carrying volume can be minimized, so it can be easily carried.

In addition, the display stand coupler 140 stops sliding movement at each interval groove 135 to display the basic line, so that not only can the hitting point (TK) be displayed at precise intervals without the need for a separate yardstick, but also each other. By selecting the spacing grooves 135 of different intervals through the spacing adjustment ring 146 to change the stopping spacing of the basic display unit 110 to the desired shape, the hitting point (TK ) can be displayed.

In addition, since the orthogonal guide 130 is rotatably supported on the target by the pivot hinge 133, the striking point TK can be accurately displayed by displaying a baseline line exactly orthogonal to the previously displayed baseline line. You can.

Although the embodiments of the present invention have been described above, the scope of the rights of the present invention is not limited thereto, and the embodiments of the present invention can be easily modified by those skilled in the art in the technical field to which the present invention belongs and are recognized as equivalent. Includes all changes and modifications to the extent permitted.

100: Schmidt hammer hitting point indicator 110: Basic indicator
111: Guide groove 120: Indicator hole
130: Orthogonal guide 131: Support portion
133: pivot hinge 135: spacing groove
135a: first gap groove 135b: second gap groove
135c: Third spacing groove 137: Guide groove
140: indicator joint 140a: position fixing groove
140b: Guide protrusion 141: Hinge axis
143: Rotation limit jaw 145: Stopper part
145a: Stop ball 145b: Ball support spring
146: Spacing adjustment ring 146a: Position fixing protrusion
146b: Ball groove 147: Ring support spring
TK: striking point

Claims (4)

A Schmidt hammer striking point indicator for safety diagnosis of a structure to indicate the striking point for striking the Schmidt hammer by displaying basic lines in a grid form,
A basic indicator with a straight guide groove,
An indicator installed in the guide groove and moving along the guide groove to display a basic line,
An orthogonal guide that guides the movement of the basic display panel in a direction perpendicular to the straight line in which the display ball moves so as to display the basic line in parallel and spaced apart, and
The basic display stand is located in parallel with the orthogonal guide stand, or the end of the basic display stand is rotatably installed so as to be perpendicular to the orthogonal guide stand, and the basic display stand is slidably coupled to the orthogonal guide stand. Includes a confrontation ball,
The orthogonal guide has a plurality of first interval grooves formed along the longitudinal direction of the orthogonal guide so that the basic display can stop sliding at preset first intervals to display the basic line, and the basic display can have the first interval grooves formed along the longitudinal direction of the orthogonal guide. The longitudinal direction of the orthogonal guide at the second interval at a peripheral position different from the position where the first interval groove is formed on the orthogonal guide to indicate the basic line by indicating the basic line by sliding at every second interval that is wider or narrower than the interval. Schmidt hammer impact point indicator for safety diagnosis of a structure, comprising a plurality of second spacing grooves formed along. delete According to paragraph 1,
The indicator joint is
A stopper that rotates around the display stand coupler and selects the first or second gap groove to stop the sliding movement while the basic display stand is selected and caught at the first or second gap on the orthogonal guide stand. Schmidt hammer impact point indicator for safety diagnosis of structures characterized by including a part. According to paragraph 1,
The orthogonal guide is
A structure comprising a pivot hinge installed at an end of the orthogonal guide to rotate the orthogonal guide in a direction perpendicular to the current position to mark the striking point by marking a basic line orthogonal to the basic line. Schmidt hammer impact point indicator for safety diagnosis.

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