KR102588788B1 - Measuring Device for Movement Amount of Bridge Bearing for Safety Diagnosis - Google Patents

Abstract

The present invention relates to a device for measuring the movement amount of a bridge support for safety diagnosis, comprising: a positioning plate (31) installed on the upper surface of the magnet holder (30); Fitting grooves 32 formed on the upper surface of the positioning plate 31 and positioned in a straight line in the left and right directions; A channel 90 installed on the bottom of the angle bar 40 and having a tee groove 91 with an open bottom; A locking protrusion (92) formed at the lower edge of the tee groove (91) in opposite directions; A guide beam 100 of H cross section is inserted into the fitting groove 32 so as to cross the upper surface of the positioning plate 31 and guides the channel 90 in the longitudinal direction; A channel guide groove (101) formed on the side of the guide beam (100) and caught on the stopping protrusion (92); A beam fixing bolt (102) that penetrates the guide beam (100) and the positioning plate (31) and is coupled to the magnet holder (30); It is screwed to the guide beam 100 and includes a channel fixing lever bolt 103 that presses the ceiling of the tee groove 91 to stop the movement of the channel 90.

Description

{Measuring Device for Movement Amount of Bridge Bearing for Safety Diagnosis}

The present invention relates to a device for measuring the movement amount of a bridge support for safety diagnosis. More specifically, it relates to a device for measuring the movement amount of a bridge support for safety diagnosis, which is used to check the safety of a bridge by measuring the amount of movement of the bridge support that moves according to the behavior of the bridge deck. It is about a movement measurement device.

In general, bridge supports located between superstructures such as bridge girders and substructures such as piers and abutments include fixed supports and movable supports. Movable supports include one-way supports that move in the direction of the throttle and two-way supports that move in a direction perpendicular to the axis.

The movable support consists of an upper plate and a lower plate. In particular, the upper plate connected to the bridge superstructure is moved by the bridge superstructure, which repeatedly contracts and expands according to temperature changes, and also moves due to shrinkage and creep due to drying of the concrete. .

The amount of expansion of a bridge like this is subject to safety inspection of the bridge, and the amount of expansion of the bridge can be derived by regularly measuring the movement amount of the bridge support and comparing it with the previous value.

For this purpose, as shown in Figure 1 of the attached drawing, a ruler 15 is installed on the upper plate 11 of the bridge support 10, and an indicator needle 16 is installed on the lower plate 12 of the bridge support 10. .

To measure the amount of movement of the bridge support 10, read and record the position of the indicator needle 16 on the ruler 15, and then calculate the difference between the previous measured value and the current measured value at the next inspection to obtain the amount of movement of the bridge.

However, since measuring the movement amount of a bridge uses a ruler 15 and an indicator needle 16, there is a problem in that precise measurement is difficult. In particular, bridge supports without a ruler 15 and an indicator needle 16 are measured using a tape measure, so there is a problem in that the measurement becomes inaccurate.

Domestic registered patent No. 10-1991336 (announced on June 21, 2019) Domestic registered patent No. 10-2354658 (announced on January 24, 2022) Domestic registered patent No. 10-2392654 (announced on April 29, 2022) Domestic registered patent No. 10-1779599 (announced on September 18, 2017) Domestic registered patent No. 10-1997902 (announced on October 1, 2019) Domestic registered patent No. 10-2114241 (announced on May 26, 2020) Domestic registered patent No. 10-2383160 (announced on April 8, 2022) Domestic Public Patent No. 10-2000-0000347 (published on January 15, 2000) Domestic registered patent No. 10-1991890 (announced on June 21, 2019) Domestic registered patent No. 10-1086868 (announced on November 24, 2011) Domestic registered patent No. 10-2057732 (announced on December 19, 2019) Domestic registered patent No. 10-1949723 (announced on February 19, 2019)

The present invention was made to solve the above problems, and its purpose is to provide a device for measuring the movement amount of bridge supports for safety diagnosis that can conveniently and precisely measure the movement amount of bridge supports.

delete

A device for measuring the movement amount of a bridge support for safety diagnosis to achieve the purpose of the present invention includes a pair of magnet holders that are attracted to the bridge support by magnetic force and are positioned at a certain distance from each other in the left and right directions; An angle bar that receives support from a magnet holder and is positioned horizontally in the left and right directions at a distance from the front of the bridge support; A pair of shaft holders installed on both ends of the angle bar; A guide shaft supported at both ends by a shaft holder and positioned parallel to the angle bar; A digital scale supported at both ends on a shaft holder and positioned parallel to the guide shaft; A digital detector that outputs the moving distance while moving in the longitudinal direction along a digital scale; A display panel that displays the moving distance output from the digital detector and has an origin setting button; A slide block moving longitudinally along a guide shaft together with a digital detector; A jaw clamp formed on the slide block; A measuring tank installed on the jaw clamp and used to set the positions of the upper and lower plates of the bridge support; In including a clamp bolt installed on the jaw clamp to stop the movement of the measuring tank,
A positioning plate installed on the upper surface of the magnet holder; Fitting grooves formed on the upper surface of the positioning plate and positioned in a straight line in the left and right directions; A channel installed on the bottom of the angle bar and having a tee groove with an open bottom; A locking protrusion formed at the lower edge of the tee groove in opposite directions; A guide beam of H cross section is inserted into the fitting groove to cross the upper surface of the positioning plate and guides the channel in the longitudinal direction; A channel guide groove formed on the side of the guide beam and caught on the stopper; A beam fixing bolt that penetrates the guide beam and the positioning plate and is coupled to the magnet holder; It is screwed to the guide beam and has the feature of including a lever bolt for fixing the channel, which stops the movement of the channel by pressing on the ceiling of the tee groove.

The present invention includes a pair of magnet holders that are attracted to a bridge support by magnetic force and are positioned at a certain distance from each other in the left and right directions; An angle bar that receives support from a magnet holder and is positioned horizontally in the left and right directions at a distance from the front of the bridge support; A pair of shaft holders installed on both ends of the angle bar; A guide shaft supported at both ends by a shaft holder and positioned parallel to the angle bar; A digital scale supported at both ends on a shaft holder and positioned parallel to the guide shaft; A digital detector that outputs the moving distance while moving in the longitudinal direction along a digital scale; A display panel that displays the moving distance output from the digital detector and has an origin setting button; A slide block moving longitudinally along a guide shaft together with a digital detector; A jaw clamp formed on the slide block; A measuring tank installed on the jaw clamp and used to set the positions of the upper and lower plates of the bridge support; In including a clamp bolt installed on the jaw clamp to stop the movement of the measuring tank,
a needle insertion hole drilled at a right angle to the axis at the end of the measuring tank; L-shaped probe needle for reading the positions of the ruler and indicator needle installed on the bridge support; Attachment formed at the tip of the probe needle; A tapped hole for fixing a needle formed from the center of the end of the measuring tank toward the needle insertion hole; It is coupled to the needle fixing tap hole and has the feature of including a needle fixing set screw for fixing the probe needle.

The present invention includes a pair of magnet holders that are attracted to a bridge support by magnetic force and are positioned at a certain distance from each other in the left and right directions; An angle bar that receives support from a magnet holder and is positioned horizontally in the left and right directions at a distance from the front of the bridge support; A pair of shaft holders installed on both ends of the angle bar; A guide shaft supported at both ends by a shaft holder and positioned parallel to the angle bar; A digital scale supported at both ends on a shaft holder and positioned parallel to the guide shaft; A digital detector that outputs the moving distance while moving in the longitudinal direction along a digital scale; A display panel that displays the moving distance output from the digital detector and has an origin setting button; A slide block moving longitudinally along a guide shaft together with a digital detector; A jaw clamp formed on the slide block; A measuring tank installed on the jaw clamp and used to set the positions of the upper and lower plates of the bridge support; In including a clamp bolt installed on the jaw clamp to stop the movement of the measuring tank,
A metal sheet installed in front of the digital detector and attracted by magnetic force; A magnet installed on the back of the display panel and attracted to the metal sheet by magnetic force; It is formed in the shape of a step at the rear of the shaft holder and has the feature of including a ledge that hangs on the top of the angle bar.

As described above, the present invention allows the measurement tank 81 and the probe needle 83 to be positioned on the ruler 21 and the indicator needle 22 installed on the bridge support 20 by changing the positions, so precise It has the effect of obtaining measured values.

By moving the channel 90, guide shaft 51, digital scale 60, and angle bar 40 in the longitudinal direction of the guide beam 100 and placing them on one side of the beam 100, surrounding obstacles are avoided. This makes it convenient to measure.

When the channel (90), guide shaft (51), digital scale (60), and angle bar (40) are moved to one end of the bridge support (20), the measuring tank (81) and probe needle (83) are moved to the bridge support ( Since space can be secured to contact the sides of the upper plate 25 and the lower plate 26 of 20), the movement amount of the bridge support 20 without the ruler 21 and the indicator needle 22 can be adjusted to the upper plate 25. There is an effect that can be obtained precisely by measuring the distance between the sides of the and lower plates 26.

Since the measurement is performed while adsorbed to the bridge support (20) using the magnet holder (30), it is effective in preventing shaking and obtaining precise measured values.

Since the support 52 formed on the shaft holder 50 is configured to be caught on the top of the angle bar 40, the positioning of the shaft holder 50 can be conveniently and quickly performed.

There is an effect that the guide beam 100 can be assembled conveniently and quickly by the positioning plate 31 and the fitting groove 32 installed on the magnet holder 30.

There is an effect of stopping the movement of the channel 90 by the channel fixing lever bolt 103 installed on the guide beam 100.

Figure 1 is a front view showing the measurement of the movement amount of a general bridge support.
Figure 2 is a perspective view showing the movement amount measuring device according to the present invention installed on a bridge support, showing that the attachment of the probe needle is located at the end of the ruler.
Figure 3 is a perspective view showing the slide block, digital detector, display panel, measuring tank, and probe needle in Figure 2 moving toward the center of the indicator needle.
Figure 4 is a front view of Figure 2
Figure 5 is a front view of Figure 3
Figure 6 is a perspective view showing the present invention
Figure 7 is a perspective view of Figure 6 seen from the opposite side, below.
Figure 8 is an exploded perspective view showing the angle bar and shaft holder separated according to the present invention.
Figure 9 is a perspective view of Figure 7 viewed from the opposite side, below.
Figure 10 is an exploded perspective view showing the angle bar, channel, guide beam, positioning plate, magnet holder, and lever bolt for fixing the channel according to the present invention.
Figure 11 is a perspective view of Figure 10 seen from the opposite side, below.
Figure 12 is an exploded perspective view showing a guide shaft, digital scale, digital detector, metal sheet, display panel, shaft holder, slide block, jaw clamp, measuring tank, probe needle, and clamp bolt according to the present invention.
Figure 13 is a perspective view of Figure 12 from the opposite side, below.
Figure 14 is a cross-sectional view taken along line A-A' of Figure 4
Figure 15 is a cross-sectional view taken along line B-B' of Figure 4
Figure 16 is a cross-sectional view taken along line C-C' of Figure 4
Figure 17 is a cross-sectional view taken along line D-D' of Figure 4

Hereinafter, an embodiment according to the present invention will be described in detail with reference to Figures 2 to 17.

The present invention includes a pair of magnet holders (30) that are attracted to the bridge support (20) by magnetic force and are positioned at a certain distance from each other in the left and right directions; It obtains support from the magnet holder 30 and includes an angle bar 40 positioned horizontally in the left and right directions at a position spaced apart from the front of the bridge support 20.

The magnet holder 30 may be provided with a magnet switch 33 that can turn magnetic force on/off. A magnetic adsorption surface 34 may be formed on the rear of the magnet holder 30.

The angle bar 40 can be formed by cutting a metal extrusion material with an L-shaped cross section continuous in the longitudinal direction to a certain length.

The present invention includes a pair of shaft holders (50) installed on both ends of an angle bar (40); A guide shaft (51) supported at both ends by the shaft holder (50) and positioned parallel to the angle bar (40); A digital scale (60) supported at both ends by the shaft holder (50) and positioned parallel to the guide shaft (51); It includes a digital detector 61 that outputs the moving distance while moving in the longitudinal direction along the digital scale 60.

As shown in FIGS. 8, 9, and 14, the shaft holder 50 has holder fastening holes 40a formed at both ends of the angle bar 40, and a tapped hole for fixing the holder is provided on the rear of the shaft holder 50. After forming (50t), the angle bar (40) is brought into close contact with the rear of the shaft holder (50), and then the holder fixing bolt (53) is connected to the holder fixing tapped hole (50t) through the holder fastening hole (40a). Shaft holders 50 are installed at both ends of the angle bar 40.

At this time, by bringing the upper end of the angle bar 40 into close contact with the support 52 formed on the shaft holder 50, the positioning of the shaft holder 50 can be determined quickly and conveniently.

The guide shaft 51 can be formed by cutting a polished rod with a certain diameter and a smooth surface to a certain length.

As shown in the accompanying drawings, FIGS. 12, 13, and 14, in order to support both ends of the guide shaft 51 on the shaft holder 50, a shaft insertion hole 55 into which the end of the guide shaft 51 is inserted is provided. It can be formed on the holder 50.

In this case, a cut of a certain width is formed on the back of the shaft holder 50 toward the shaft insertion hole 55, and a holder bolt fastening hole 55h and a holder bolt tapped hole 55t penetrating in the width direction of the cut are formed on the shaft. It is formed in the holder 50.

After inserting the end of the guide shaft 51 into the shaft insertion hole 55, the shaft fixing bolt 54 is coupled to the holder bolt tapped hole 55t through the holder bolt fastening hole 55h and tightened to tighten the guide shaft 51. is fixed to the shaft holder (50).

As shown in the accompanying drawings, FIGS. 12, 13, and 14, both ends of the digital scale 60 can be fixed to the shaft holder 50 by the scale bracket 67 that covers the ends of the digital scale 60.

A tapped hole (50m) for scale fixation whose center coincides with the scale fastening hole (67h) formed at the upper and lower portions of the scale bracket (67) can be formed on the front of the shaft holder (50). Both ends of the digital scale 60 are brought into close contact with the front of the shaft holder 50, and then both ends of the digital scale 60 are covered with the scale bracket 67.

At this time, when the scale fixing screw (68) is inserted through the scale fastening hole (67h) whose center is aligned with the scale fixing tap hole (50m) and coupled to the scale fixing tap hole (50m), both ends of the digital scale (60) are connected to the shaft. It is fixed to the holder 50.

The digital detector 61 has a built-in sensor and circuit to output the moving distance as digital data when moving along the digital scale 60 while power is applied.

The present invention includes a display panel (62) that displays the moving distance output from the digital detector (61) and has an origin setting button (B3); It includes a slide block 70 that moves in the longitudinal direction along the guide shaft 51 together with the digital detector 61.

As shown in FIGS. 6 and 12 of the accompanying drawings, the display panel 62 includes a liquid crystal display unit 66 for displaying the measured measurement distance L1, and a power supply for the display panel 62 and the digital detector 61. A power button (B1) to turn on/off, a unit setting button (B2) to alternately switch the units displayed on the liquid crystal display (66) to inches or millimeters, and a decimal point display and fraction when the unit is set to inches. Inch display switching button (B4) to switch the display alternately, and absolute position switching to alternate between displaying the distance moved from the memorized absolute position or measuring the distance from the position where the origin setting button (B3) was pressed. A button B5 may be provided.

As shown in Figures 12 and 13, a bush insertion hole 72 is formed in a penetrating type in the slide block 70, a pair of ball bushes 71 are inserted into the bush insertion hole 72, and then the ball bushing is inserted into the slide block 70. It can be guided by inserting the guide shaft 51 into the center of (71).

The ball bush 71 can be press-fitted into the bush insertion hole 72 or adhered using an anaerobic adhesive, and can also be fixed using bolts (not shown).

A detector fixing plate 73 of a certain thickness on which the digital detector 61 is installed can be formed at the lower part of the slide block 70. When installing the digital detector 61 on the detector fixing plate 73, it can be installed using adhesive or double-sided tape, and the digital detector 61 can also be installed on the detector fixing plate 73 by fixing with bolts.

The present invention includes a jaw clamp 80 formed on a slide block 70; A measuring tank (81) installed on the jaw clamp (80) and used to set the positions of the upper plate (25) and lower plate (26) of the bridge support (20); It includes a clamp bolt 82 installed on the jaw clamp 80 to stop the movement of the measuring tank 81.

The jaw clamp 80 can be formed by cutting a metal or plastic material, and the measuring jaw 81 can be formed by cutting a metal round bar with a smooth surface polished to a certain length.

As shown in the accompanying drawings, FIGS. 12, 13, and 17, the jaw insertion hole 80h for inserting the measuring jaw 81 is formed to penetrate in the horizontal direction before and after the jaw clamp 80, and the jaw clamp 80 ) is cut at a certain width from the upper surface toward the nail insertion hole (80h), then the nail insertion hole (80h) is loosened using the clamp bolt (82) to enable movement and rotation of the measuring tank (81), and the clamp bolt By (82), the tank insertion hole (80h) can be reduced to fix the measuring tank (81).

The clamp bolt 82 forms a clamp fastening hole 80a on one side of the jaw clamp 80 based on the incision, and a tapped hole 80t for clamp fixation is formed on the other side, so that the clamp bolt 82 is connected to the clamp fastening hole. It is connected to the tapped hole (80t) for clamp fixation through (80a).

The present invention includes a positioning plate 31 installed on the upper surface of the magnet holder 30; Fitting grooves 32 formed on the upper surface of the positioning plate 31 and positioned in a straight line in the left and right directions; A channel 90 installed on the bottom of the angle bar 40 and having a tee groove 91 with an open lower part; It includes a locking protrusion 92 formed at the lower edge of the tee groove 91 in opposite directions.

The positioning plate 31 can be formed from a metal or plastic plate with a certain thickness. The fitting groove 32 formed in the positioning plate 31 helps to quickly and precisely assemble the guide beam 100.

The fitting groove 32 is formed to have a certain depth and width, and is formed to have a width corresponding to the width of the guide beam 100. The channel 90 can be formed by forming a non-ferrous metal material so that a certain cross section is continuous in the longitudinal direction and then cutting it to a certain length. The tee groove 91 formed in the channel 90 is open downward.

As shown in the accompanying drawings, FIGS. 10, 11, and 14, angle fastening holes 40h and 90h whose centers coincide with each other are formed in the angle bar 40 and the channel 90 in the vertical direction, and angle fixing bolts are formed in the vertical direction. After inserting (41) into the angle fastening hole (40h) (90h), attach and tighten the angle fixing nut (42) to the top of the angle fixing bolt (41) protruding upward, and the angle bar (40) and channel (90) This is combined.

The present invention includes a guide beam (100) of H cross section that is inserted into the fitting groove (32) so as to cross the upper surface of the positioning plate (31) and guides the channel (90) in the longitudinal direction; A channel guide groove (101) formed on the side of the guide beam (100) and caught on the stopping protrusion (92); A beam fixing bolt (102) that penetrates the guide beam (100) and the positioning plate (31) and is coupled to the magnet holder (30); It is screwed to the guide beam 100 and includes a channel fixing lever bolt 103 that presses the ceiling of the tee groove 91 to stop the movement of the channel 90.

The channel guide groove 101 formed on the guide beam 100 can be formed as a straight groove with a constant width and depth.

As shown in the accompanying drawings, FIGS. 10, 11, and 15, a counter bore hole 104 is formed in the guide beam 100, and a counter bore hole 104 is formed in the fitting groove 32 formed in the positioning plate 31. A tapped hole for beam fastening is formed on the upper surface of the magnet holder 30 by forming a through hole (31h) whose center coincides with the When coupled to (30t), the guide beam 100 and the positioning plate 31 are fixed to the magnet holder (30).

In particular, the bolt head of the beam fixing bolt 102 enters the counter bore hole 104 as shown in FIG. 15, so the bolt head of the beam fixing bolt 102 enters the ceiling of the tee groove 91 formed in the channel 90. Interference can be prevented.

As shown in Figures 10, 11, and 16, a tapped hole (100t) for fastening the lever bolt is formed in a vertically penetrating shape on the guide beam (100), and then the lever bolt (103) for fixing the channel is fastened with the lever bolt. When tightened by engaging the tap hole 100t, the upper end of the channel fixing lever bolt 103 presses the ceiling of the tee groove 91 formed in the channel 90, thereby stopping the movement of the channel 90.

When the channel fixing lever bolt (103) is loosened and the upper end of the channel fixing lever bolt (103) is separated from the ceiling of the tee groove (91), the channel (90) is moved along the channel guide groove (101) formed in the guide beam (100). It can be moved freely.

The present invention includes a needle insertion hole (81h) drilled at a right angle to the axis at the end of the measuring tank (81); An L-shaped probe needle (83) for reading the positions of the ruler (21) and the indicator needle (22) installed on the bridge support (20); Attachment (83a) formed at the tip of the probe needle (83); A tapped hole (81t) for fixing a needle formed from the center of the end of the measuring tank (81) toward the needle insertion hole (81h); It is coupled to the needle fixing tap hole (81t) and includes a needle fixing set screw (84) that fixes the probe needle (83).

The probe needle 83 can be formed by bending a spring steel wire into an L shape. The attachment 83a formed on the probe needle 83 may be formed in a cone shape as shown in the example.

The present invention includes a metal sheet (64) installed in front of the digital detector (61) and adsorbed by magnetic force; A magnet 65 is installed on the rear of the display panel 62 and is attracted to the metal sheet 64 by magnetic force; It is formed in a step shape at the rear of the shaft holder 50 and includes a support 52 hanging on the top of the angle bar 40.

The metal sheet 64 can be formed by cutting a metal plate with a certain thickness into a rectangular shape. The metal sheet 64 can be adhered to the surface of the digital detector 61.

The magnet 65 may be formed by forming a circular hole (not shown) of a certain depth on the back of the display panel 62 and then press-fitting or adhering to the formed hole.

The unexplained code 23 indicates a bridge superstructure located on the upper part of the bridge support 20, 24 indicates a bridge substructure such as a pier or abutment located in the lower part of the bridge support 20, and 27 indicates the lower plate ( This shows the anchor bolts that secure 26) to the bridge substructure (24).

Hereinafter, the operation according to the present invention will be described in detail based on the attached drawings.

As shown in Figures 2 to 5 of the accompanying drawings, the magnetic attraction surface 34 formed on the back of the magnet holder 30 is brought into close contact with the front of the lower plate 26 of the bridge support 20, and then the magnet switch 33 is turned. When magnetic force is generated in the magnet holder 30, the magnet holder 30 is attracted to the lower plate 26 of the bridge support 20.

Afterwards, when the channel fixing lever bolt 103 is switched to the locked state, the channel 90 is fixed to the guide beam 100. At this time, as shown in FIG. 17, the positions of the measuring tank 81 and the probe needle 83 are changed to position the tip 83a of the probe needle 83 on the ruler 21.

For this purpose, when the clamp bolt 82 is loosened, the jaw insertion hole 80h formed in the jaw clamp 80 becomes loose. At this time, the measuring jaw 81 is moved forward toward the bridge support 20 or in a direction away from the bridge support 20. If you move backwards, you can change the position of the measuring tank (81).

In addition, the measuring tank 81 can be rotated when the sample insertion hole 80h is loose, and the height and position of the probe needle 83 can be changed through rotation of the measuring tank 81. At this time, by loosening the set screw 84 for fixing the needle, the probe needle 83 can be moved in the radial direction and the position of the attachment 83a of the probe needle 83 can be changed.

When the position of the measuring tank (81) is changed and the clamp bolt (82) is tightened, the measuring tank (81) is strongly clamped into the jaw insertion hole (80h) and the measuring tank (81) is fixed to the jaw clamp (80), and the probe After changing the position of the needle (83), the probe needle (83) is fixed to the measuring tank (81) by tightening the needle fixing set screw (84).

At this time, when the power button (B1) installed on the display panel 62 is pressed to supply power to the digital detector 61 and the display panel 62, numbers and units are displayed on the liquid crystal display unit 66 installed on the display panel 62. .

As shown in Figures 2 and 4, when the slide block 70 is held by hand and moved along the guide shaft 51, the digital detector 61 moves together with the slide block 70 and the digital detector 61 ) moves along the longitudinal direction of the digital scale 60.

At this time, when the attachment (83a) of the probe needle (83) is located at one end of the ruler (21), the slide block (70) is stopped and the origin setting button (B3) installed on the display panel (62) is pressed to display the display panel. The number '0' is output on the liquid crystal display unit 66 installed at (62).

Then, as shown in FIGS. 3 and 5, the slide block 70 and the digital detector 61 are moved so that the probe needle 83 faces the indicator needle 22 installed on the lower plate 26 of the bridge support 20. Then, the moving distance is output to the liquid crystal display unit 66 installed on the display panel 62 by the digital detector 61.

At this time, when the tip 83a of the probe needle 83 is located at the center of the indicator needle 22, the movement of the slide block 70 and the digital detector 61 is stopped, and the value output on the liquid crystal display unit 66 is displayed. By reading it, you can know the measured distance (L1) from one end of the ruler (21) to the center of the indicator needle (22).

The upper plate 25 of the bridge support 20 moves due to the behavior of the bridge superstructure 23 due to temperature changes. At this time, the indicator needle 22 stops and the ruler 21 moves the upper plate of the bridge support 20 ( Move along 25).

In this way, when regularly checking the movement amount of the bridge support 20, the previous measurement distance (L1) and the current measurement distance (L1) are compared and the difference is calculated to obtain the movement amount of the bridge support 20.

At this time, if the channel fixing lever bolt 103 is loosened, the channel 90 can be moved along the channel guide groove 101 formed in the guide beam 100. When the channel 90 moves, the angle bar 40 and the guide The shaft 51 and the digital scale 60 also move together.

If the channel 90 is moved and positioned on one side of the guide beam 100 in this way, surrounding structures that interfere with the magnet holder 30 can be avoided, and the upper plate 25 and lower plate of the bridge support 20 can be removed. By using the side of (26), a space can be secured to measure the amount of movement.

20: bridge support 21: ruler
22: indicator needle 25: top plate
26: Lower plate 30: Magnet holder
31: positioning plate 32: insertion groove
40: Angle bar 50: Shaft holder
51: guide shaft 52: support jaw
60: digital scale 61: digital detector
62: Display panel B3: Origin setting button
64: metal sheet 65: magnet
70: Slide block 80: Jaw clamp
81: Measuring tank 81h: Needle insertion hole
81t: Tap hole for fixing needle 82: Clamp bolt
83: probe needle 83a: attached
84: Set screw for fixing needle 90: Channel
91: Tee groove 92: Stopper
100: Guide beam 101: Channel guide home
102: Beam fixing bolt 103: Lever bolt for channel fixing

Claims (4)

delete A pair of magnet holders (30) that are attracted to the bridge support (20) by magnetic force and are positioned at a certain distance from each other in the left and right directions;
An angle bar (40) that obtains support from the magnet holder (30) and is positioned horizontally in the left and right directions at a position spaced apart from the front of the bridge support (20);
A pair of shaft holders (50) installed at both ends of the angle bar (40);
A guide shaft 51 supported at both ends by the shaft holder 50 and positioned parallel to the angle bar 40;
A digital scale (60) supported at both ends by the shaft holder (50) and positioned parallel to the guide shaft (51);
A digital detector 61 that outputs a moving distance while moving in the longitudinal direction along the digital scale 60;
A display panel (62) that displays the moving distance output from the digital detector (61) and has an origin setting button (B3);
A slide block 70 moving in the longitudinal direction along the guide shaft 51 together with the digital detector 61;
A jaw clamp 80 formed on the slide block 70;
A measuring tank (81) installed on the jaw clamp (80) and used to set the positions of the upper plate (25) and lower plate (26) of the bridge support (20);
A clamp bolt (82) installed on the jaw clamp (80) to stop the movement of the measuring tank (81);
In the device for measuring the movement amount of bridge supports for safety diagnosis including,

A positioning plate 31 installed on the upper surface of the magnet holder 30;
Fitting grooves 32 formed on the upper surface of the positioning plate 31 and positioned in a straight line in the left and right directions;
A channel 90 installed on the bottom of the angle bar 40 and having a tee groove 91 with an open bottom;
A locking protrusion (92) formed at a lower edge of the tee groove (91) in opposite directions;
A guide beam 100 of H cross section is inserted into the fitting groove 32 so as to cross the upper surface of the positioning plate 31 and guides the channel 90 in the longitudinal direction;
A channel guide groove (101) formed on a side of the guide beam (100) and caught on the locking protrusion (92);
A beam fixing bolt (102) that penetrates the guide beam (100) and the positioning plate (31) and is coupled to the magnet holder (30);
A channel fixing lever bolt 103 that is screwed to the guide beam 100 and stops the movement of the channel 90 by pressing the ceiling of the tee groove 91;
A device for measuring the movement amount of a bridge support for safety diagnosis, comprising a. A pair of magnet holders (30) that are attracted to the bridge support (20) by magnetic force and are positioned at a certain distance from each other in the left and right directions;
An angle bar (40) that obtains support from the magnet holder (30) and is positioned horizontally in the left and right directions at a position spaced apart from the front of the bridge support (20);
A pair of shaft holders (50) installed at both ends of the angle bar (40);
A guide shaft 51 supported at both ends by the shaft holder 50 and positioned parallel to the angle bar 40;
A digital scale (60) supported at both ends by the shaft holder (50) and positioned parallel to the guide shaft (51);
A digital detector 61 that outputs a moving distance while moving in the longitudinal direction along the digital scale 60;
A display panel (62) that displays the moving distance output from the digital detector (61) and has an origin setting button (B3);
A slide block 70 moving in the longitudinal direction along the guide shaft 51 together with the digital detector 61;
A jaw clamp 80 formed on the slide block 70;
A measuring tank (81) installed on the jaw clamp (80) and used to set the positions of the upper plate (25) and lower plate (26) of the bridge support (20);
A clamp bolt (82) installed on the jaw clamp (80) to stop the movement of the measuring tank (81);
In the device for measuring the movement amount of bridge supports for safety diagnosis including,

a needle insertion hole (81h) drilled at a right angle to the axis at the end of the measuring tank (81);
An L-shaped probe needle (83) inserted into the needle insertion hole (81h) and used to read the positions of the ruler (21) and the indicator needle (22) installed on the bridge support (20);
an attachment (83a) formed at the tip of the probe needle (83);
a tapped hole (81t) for fixing a needle formed from the center of the end of the measuring tank (81) toward the needle insertion hole (81h);
A needle fixing set screw (84) coupled to the needle fixing tap hole (81t) and fixing the probe needle (83);
A device for measuring the movement amount of a bridge support for safety diagnosis, comprising a. A pair of magnet holders (30) that are attracted to the bridge support (20) by magnetic force and are positioned at a certain distance from each other in the left and right directions;
An angle bar (40) that obtains support from the magnet holder (30) and is positioned horizontally in the left and right directions at a position spaced apart from the front of the bridge support (20);
A pair of shaft holders (50) installed at both ends of the angle bar (40);
A guide shaft 51 supported at both ends by the shaft holder 50 and positioned parallel to the angle bar 40;
A digital scale (60) supported at both ends by the shaft holder (50) and positioned parallel to the guide shaft (51);
A digital detector 61 that outputs a moving distance while moving in the longitudinal direction along the digital scale 60;
A display panel (62) that displays the moving distance output from the digital detector (61) and has an origin setting button (B3);
A slide block 70 moving in the longitudinal direction along the guide shaft 51 together with the digital detector 61;
A jaw clamp 80 formed on the slide block 70;
A measuring tank (81) installed on the jaw clamp (80) and used to set the positions of the upper plate (25) and lower plate (26) of the bridge support (20);
A clamp bolt (82) installed on the jaw clamp (80) to stop the movement of the measuring tank (81);
In the device for measuring the movement amount of bridge supports for safety diagnosis including,

A metal sheet 64 installed in front of the digital detector 61 and attracted by magnetic force;
A magnet 65 is installed on the rear of the display panel 62 and is attracted to the metal sheet 64 by magnetic force;
A support 52 formed in a step shape at the rear of the shaft holder 50 and hung on the top of the angle bar 40;
A device for measuring the movement amount of a bridge support for safety diagnosis, comprising a.

Images