KR102155872B1 - carbonation depth measuring device - Google Patents

Abstract

The present invention is a thing coupled to a hammer drill and measuring a carbonation depth of a reinforced concrete structure, comprising: a fixation unit detachably coupled to the hammer drill; a slide unit coupled to the fixation unit to be slidably moved in the front-rear direction of the fixation unit; and a carbonation measurement unit rotationally coupled to the front of the slide unit and rotating in association with sliding movement of the slide unit. The present invention relates to a carbonation depth measuring apparatus for measuring the carbonation depth of the reinforced concrete structure by falling and discoloring cutting powder which is cut and dropped by the hammer drill. According to the present invention, a measuring point located under a drill bit of the hammer drill allows the cutting powder to fall, accurately measuring a time point of discoloration of the cutting powder, as well as allowing an operator to easily check whether carbonation has occurred with a naked eye. In addition, since the carbonation depth measuring apparatus is located under the hammer drill due to its simplification and miniaturization, it can be easily attached and detached from the hammer drill.

Description

Carbonation depth measuring device

The present invention relates to an apparatus for measuring the depth of carbonation of a reinforced concrete structure, and more particularly, to an apparatus for measuring a depth of carbonation capable of checking whether or not discoloration of the machining powder is automatically rotated in conjunction with the progress of a hammer drill. .

In general, concrete absorbs carbon dioxide gas in the air from the surface and loses alkalinity when calcium hydroxide in the concrete changes to calcium carbonate. This phenomenon is called carbonation or neutralization. In other words, carbonation is a phenomenon in which cement contained in hardened concrete loses its alkalinity due to the action of carbon dioxide or other acidic components. Carbonation of this concrete destroys the passive film surrounding the reinforcing bar, causing corrosion of the reinforcing bar and shortening the life of the concrete.

The carbonation proceeds from the surface of the concrete, and the depth of the portion that is carbonated from the surface of the concrete toward the inside is called the carbonation depth (neutralization depth).

Carbonation mechanism of the concrete penetrated carbon dioxide gas to concrete -> carbonation (neutralized) -> of RC passive film breaking ->corrosion> reinforced volume expansion -> proceeds in concrete cracking in order, by the following formula is Ca (OH) ₂ (Calcium hydroxide) + CO ₂ = CaCO ₃ (calcium carbonate) + H ₂ O.

Before the carbonation proceeds, calcium hydroxide is initially strongly alkaline with a hydrogen ion concentration of about 12 to 13, but a portion changed to calcium carbonate due to carbonation is lowered to about 8 to 10 and is neutralized.

When the hydrogen ion concentration inside the concrete is higher than pH 11, it does not rust even if oxygen exists, but when it is lower than pH 11, rust occurs in the reinforcing bar and cracks occur in the concrete as the reinforcing bar expands to about 2.5 times the original volume.

The test result of the concrete core collected from the reinforced concrete structure by the method of measuring the carbonation depth (KS F 2596: 2004) and the test result of the sample obtained by pecking is high, but since it is a fracture test, it affects the reinforced concrete structure. There is a problem.

In addition, since the carbonation depth must be manually measured for each of the above operations, a measurement error may occur depending on the operator, so there is a problem in that the reliability of the measurement is poor.

In order to solve the above problems, a concrete carbonation depth measurement module has recently been registered in Korean Patent Publication No. 10-1747192. In this prior art, in the concrete carbonation depth measurement module, a coupling part fastened to the outer circumference of a drill head of a hammer drill, a carbonation depth measuring part installed on the upper part of the coupling part body to measure the carbonation depth, and a lower part of the coupling part body It is a configuration comprising a test solution sprayer for spraying the test solution to the machining powder falling from the concrete structure, and a machining powder guide part installed at the lower end of the test solution spray nozzle to receive the machining powder falling from the concrete structure.

However, in the prior art, a carbonation depth measurement unit is coupled to an upper portion of a hammer drill, and a test solution sprayer and a machining powder guide unit connected to the sprayer are coupled to the lower portion of the hammer drill, so that the structure is complicated and manufacturing and installation are difficult.

In addition, the prior art has a problem that it is difficult to operate a switch for spraying a test solution while performing a hammer drill operation, as well as a manual rotation handle of the machining powder guide part.

In addition, in the prior art, since the cutting powder guide part is fixed to the hammer drill, and the hammer drill advances according to excavation, it is difficult for the cutting powder to accurately fall to the cutting powder guide part.

Korean Patent Publication No. 10-1747192

The present invention has been conceived to solve the above problems, and is to provide a carbonation depth measuring device that is manufactured in a small size and can be easily attached and detached from a hammer drill.

In addition, it is to provide a carbonation depth measuring device capable of efficiently measuring the carbonation depth of a reinforced concrete structure by allowing an operator to measure carbonation of concrete only by operating a hammer drill without an auxiliary manpower or auxiliary operation.

In addition, it is intended to provide a carbonation depth measuring device that can be easily mounted and used on a hammer drill of various sizes and shapes by adjusting the height and width.

A carbonation depth measuring apparatus according to an exemplary embodiment of the present invention includes a fixing unit coupled to a hammer drill to measure the carbonation depth of a reinforced concrete structure, and detachably coupled to the hammer drill; A slide part that is slidably coupled to the fixed part in a front-rear direction; And a carbonation measurement unit rotatably coupled to the front of the slide unit and rotating in association with the sliding movement of the slide unit, wherein when the hammer drill moves forward, it is machined by the hammer drill and falls. Machining powder may fall and discolor to the carbonation measuring unit axially coupled to the slide unit that is pushed back against the reinforced concrete structure, thereby measuring the carbonation depth of the reinforced concrete structure.

The fixing unit includes a band fixing unit detachably coupled to the hammer drill, a position adjustment unit coupled to the band fixing unit, and a guide unit coupled to the position adjustment unit, and the slide unit moves forward and backward to the guide unit. It can be combined to be slidable.

The band fixing part may include a band member mounted on the hammer drill and a band fixing member fixing the band member.

The positioning unit includes a positioning bolt fixed to the band fixing portion, a positioning member coupled to the positioning bolt and movable left and right from the positioning bolt, and a positioning nut fastened to the positioning bolt. I can.

The guide unit includes a'C'-shaped body coupled to the positioning unit, a guide hole penetrating in the body in a longitudinal direction, a coupling space formed outside the guide hole, and an inner lower side of the body. It may include a rack gear, and a guide jaw recessed in the upper and lower corners of the body.

And a height adjusting part for adjusting the height of the guide part, and the height adjusting part includes a vertical guide hole provided in the position adjusting part, and a height adjusting bolt and a height adjusting nut for fixing a guide part elevating along the vertical guide hole. I can.

The slide unit may include a slide member that is slidably coupled to the fixing unit in a forward and backward direction, a pinion gear axially coupled to the slide member and rotating according to the sliding movement of the slide member, and the rotation power of the pinion gear is carbonated. It may include a power transmission unit for transmitting to the measurement unit, the power transmission unit may be characterized in that the rotation by connecting a shaft coupled to the pinion gear and a shaft coupled to the carbonation measurement unit.

The carbonation measurement unit may include a rotating shaft axially coupled to the slide unit and a drum coupled to the rotating shaft.

It may further include a horizontal inner portion for guiding the horizontal movement of the guide portion.

The horizontal transfer inner portion includes a first horizontal transfer inner member concave or protruding from the side of the guide portion, and a second horizontal transfer inner member protruding or concave to the side of the positioning unit so as to be coupled to the first horizontal transfer inner member. can do.

According to the present invention, since it is manufactured in a small size and can be easily attached and detached from a hammer drill, it can be easily used.

In addition, it is possible for an operator to efficiently measure carbonation of concrete only by operating a hammer drill without auxiliary personnel or auxiliary operations.

In addition, since the height and width can be adjusted, it can be easily mounted and used on hammer drills of various sizes and shapes.

1 is an exploded perspective view of a carbonation depth measuring apparatus according to an example of the present invention
2 to 3 are front and side views of a carbonation depth measuring apparatus according to an example of the present invention
Figure 4 is a view showing a coupled state of the drum of the carbonation depth measuring apparatus according to an example of the present invention
5 to 8 are manufacturing state diagrams of a carbonation depth measuring apparatus according to an example of the present invention
9 is a perspective view of an apparatus for measuring carbonation depth according to another example of the present invention
10 is an installation state diagram of a carbonation depth measuring apparatus according to an example of the present invention
11 to 13 are operational state diagrams of the carbonation depth measuring apparatus according to an example of the present invention
14 is an exploded perspective view of an apparatus for measuring carbonation depth according to another example of the present invention

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing an embodiment of the present invention, when it is determined that a detailed description of a related known configuration or function interferes with an understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the constituent elements of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component May be “connected”, “coupled” or “connected”.

1 is an exploded perspective view of an apparatus for measuring carbonation depth according to an example of the present invention, and FIGS. 2 to 3 are front and side views of an apparatus for measuring carbonation depth according to an example of the present invention.

The carbonation depth measuring device 10 according to an example of the present invention is coupled to the hammer drill 20 to measure the carbonation depth of a reinforced concrete structure, and includes a fixed part 100, a slide part 200, and a carbonation measuring part ( 300) may be included.

The fixing part 100 may include a band fixing part 110 detachably coupled to the hammer drill 20. The band fixing part 110 may include a band member 111 and a band fixing member 112.

The band member 111 is a pair of semi-arc shapes joined by a hinge, and a bent piece is formed at an end thereof and may be mounted on the tip of the hammer drill 20. A friction member such as rubber may be attached to the inner surface of the band member 111.

The band fixing member 112 is a configuration that is fastened to the bent piece of the band member 111 to fix the band member 111, or is a bolt/nut, or a pin is coupled to the band member 111 and the combined pin is tensioned. It may be a rotating fastening member.

The fixing part 100 may include a position adjusting part 120 for adjusting the position of the slide part 200, for example, an interval.

The position adjusting unit 120 may include a position adjusting bolt 121, a position adjusting member 122, and a position adjusting nut 123.

The positioning bolt 121 may be a bolt fixed to the fixing part 100.

The positioning member 122 is fixed to the positioning bolt 121 and can be horizontally moved to the left and right of the positioning bolt 121. The position adjusting member 122 may have a single'L' shape, a'┌┐' shape, or a pair of'A' shapes. A horizontal guide hole 122 ′ may be formed long through the horizontal member of the positioning member 122 so that the positioning bolt 121 can be coupled thereto. In addition, a vertical guide hole 141 may be formed long through the vertical member of the position adjusting member 122 in the longitudinal direction, that is, in the vertical direction.

The positioning nut 123 may be a nut fastened to the positioning bolt 121, for example, a butterfly nut. The position adjusting nut 123 may be fixed by pressing the position adjusting member 122 whose position is adjusted by being fastened to the position adjusting bolt 121.

A moving guide member 124 guiding the horizontal movement of the positioning member 122 may be provided at a portion where the positioning bolt 121 is installed. The movement guide member 124 may guide the horizontal movement of the position adjustment member 122 since the bottom surface of the position adjustment member 122 is in surface contact with the upper surface. On the front and rear surfaces of the movement guide member 124, an inner member (not shown) protrudes upward so that the positioning member 122 may be guided so that it can be moved horizontally in the left and right directions without rotation. In addition, the top surface of the movement guide member 124 and the bottom surface of the position adjustment member 122 may have teeth formed with a valley and a mountain extending in the left and right directions. The teeth can also be stably coupled while the position adjusting member 122 is horizontally movable left and right without rotation.

The fixing part 100 may include a guide part 130 that guides the movement of the slide part 200. The guide part 130 may be coupled to a vertical member of the position adjusting member 122. The guide part 130 may include a body 131, a guide long hole 132, a coupling space 133, a rack gear 134, and a guide jaw 135.

The body 131 may be formed in a'C' shape in which an upper horizontal surface and a lower horizontal surface are formed on a vertical surface and upper and lower portions of the vertical surface.

The guide hole 132 may be formed long through the vertical surface of the body 131 in the longitudinal direction, that is, in the front-rear direction.

The coupling space 133 may be concave formed in the vertical surface of the body 131 outside the guide long hole 132. The coupling space 133 may be formed to have a width to which the head of the height adjustment bolt 142 described below is fitted.

The rack gear 134 may be formed above the lower horizontal surface of the body 131. The rack gear 134 may be formed in a serrated shape.

The guide jaw 135 may be concave formed at the upper and lower corners of the vertical surface of the body 131. The guide jaw 135 may guide the coupling and movement of the slide part 200 and prevent separation.

It may include a height adjustment unit 140 for adjusting the height of the guide unit 130. The height adjustment unit 140 may include a vertical guide hole 141, a height adjustment bolt 142, and a height adjustment nut 143.

The vertical guide hole 141 may be formed long through the vertical member of the position adjusting member 122 of the fixing part 100 in the longitudinal direction, that is, in the vertical direction.

The height adjustment bolt 142 and the height adjustment nut 143 may be bolts/nuts for fixing the guide portion 130 whose height is adjusted. The height adjustment bolt 142 passes through the coupling space 133 and the guide long hole 132 of the guide portion 130 and protrudes into the vertical guide long hole 141, and at the same time, the head of the height adjustment bolt 142 is a coupling space ( 133). At this time, the edge surface of the head of the height adjustment bolt 142 is in contact with the upper surface and the lower surface of the coupling space 133 and does not rotate, so that the height adjustment nut on the height adjustment bolt 142 protruding into the vertical guide hole 141 ( 143) can be easily fastened and fixed.

The slide part 200 is coupled to the guide part 130 of the fixing part 100 to slide in the front and rear direction of the fixing part 100, and the pinion gear 220, the power transmission part 230, and the slide member ( 210) may be included.

The pinion gear 220 is axially coupled to the inside of the slide member 210 and is engaged with the rack gear 134 to rotate according to the movement of the slide member 210.

The power transmission unit 230 may connect the axis of the pinion gear 220 and the axis of the carbonation measurement unit 300 so that the carbonation measurement unit 300 interlocks and rotates when the pinion gear 220 rotates. That is, the rotation power of the pinion gear 220 may cause the carbonation measurement unit 300 to rotate. The power transmission unit 230 may be a wheel connected to the shaft of the pinion gear 220, a wheel connected to the shaft of the carbonation measurement unit 300, and a belt connecting them. In addition, the power transmission unit 230 may be a gear connected to the shaft of the pinion gear 220, a gear connected to the shaft of the carbonation measurement unit 300, and a gear connecting them. The shaft may be integrally rotated by being coupled to the pinion gear 220 by force fitting or screwing.

The slide member 210 may move along the guide part 130 of the fixing part 100. That is, as the hammer drill 20 operates and advances, the slide member 210 may be pushed against the concrete structure and slide on the guide unit 130 to move backward. The slide member 210 may include a body 211, a slide piece 212, and a through hole 213.

The body 211 may have a'ㅋ' shape in which an upper horizontal surface and a lower horizontal surface are provided at regular intervals on a vertical surface and an upper portion of the vertical surface.

The slide piece 212 may be bent on the upper horizontal surface and the lower horizontal surface of the body 211 and may be coupled to the guide protrusion 135 of the guide part 130. The slide piece 212 is hooked by the guide jaw 135 so that the slide member 210 can slide along the guide part 130.

The through hole 213 may be formed through the body 211 so that the shaft is coupled.

The carbonation measurement unit 300 may rotate in conjunction with the sliding movement of the slide unit 200. The carbonation measurement unit 300 is configured to measure whether or not discoloration of the machining powder that is cut and dropped by the hammer drill 20 is discolored, and may include a rotating shaft 310, a drum 320, and a measuring member 330.

The rotation shaft 310 may be axially coupled to the front of the slide part 200. The shaft may be integrally rotated by being coupled to the rotation shaft 310 by force fitting or screwing.

The drum 320 may support a measuring member 330 that is coupled to the rotation shaft 310 and is wound. Referring to FIG. 4, the drum 320 may extend or shorten the entire length of the drum according to the position of the position adjusting unit 120. The drum 320 may be connected to a plurality of unit drums of a predetermined length. The unit drum 321 and the neighboring unit drum 322 may be connected to each other by a protrusion/groove to increase the length, or the protrusion/groove may be separated from each other to reduce the length.

The drum 320 may be directly coupled to the rotation shaft 310. In addition, the drum 320 is provided spaced apart from the rotation shaft 310, and may be coupled by the socket 340. That is, the outer surface of the socket 340 may be in close contact with the inner surface of the drum 320, and the inner surface of the socket 340 may be in close contact with the rotation shaft 310. This socket 340 may allow the drum 320 to be quickly coupled to the rotating shaft 310. The socket 340 may be formed of plastic, rubber, or the like.

The measuring member 330 is wound around the drum 320 to measure carbonation of the cutting powder, and may be a nonwoven fabric or paper. The measuring member 330 is buried in a test reagent for measuring carbonation of cutting powder, and the test reagent may be, for example, a 1% solution of phenolphthalein. The measuring member 330 may be wound around the drum 320 and may be attached to the drum 320 in various ways. For example, a Velcro may be installed on the drum 320 and a measuring member 330 may be attached to the Velcro. In addition, Velcro may be installed and attached to both ends of the measuring member 330. In addition, the drum 320 is formed of rubber or styrofoam, and the measuring member 330 may be coupled to the rubber or styrofoam with a pin or the like.

In addition, it may further include a horizontal transfer inner portion 400 for guiding the horizontal movement of the guide portion 130. The horizontal movement inner part 400 may include a first horizontal movement inner member 410 and a second horizontal movement inner member 420.

The first horizontal interposition inner member 410 may be concave or protruded from the side of the guide part 130. One or more first horizontal transfer inner members 410 may be formed to engage and engage at least one or more of the plurality of second horizontal transfer inner members 420 to guide horizontal movement of the guide unit 130.

The second horizontal transfer inner member 420 may be formed to protrude or be concave on the side of the positioning unit 120 so as to be engaged and coupled to the first horizontal transfer inner member 410. The second horizontal interposer inner member 420 may be formed in plural at a predetermined interval at an interval at which the first horizontal interposer inner member 410 is coupled.

The horizontal moving inner part 400 may guide the horizontal movement of the guide part 130 and prevent slipping in the vertical direction at the same time.

The following describes the manufacturing and use process of the carbonation depth measuring apparatus of the present invention configured as described above.

First, referring to Figs. 5 to 8, the horizontal guide hole 122' of the positioning member 122 is coupled to the positioning bolt 123, and the bottom surface of the positioning member 122 is the moving guide member 124 It can be seated on the top surface. The positioning member 122 may adjust the installation position while moving to the left and right of the positioning bolt 123 by an interval of the horizontal guide hole 122'. In addition, by fastening the positioning nut 123 to the positioning bolt 123 protruding through the horizontal guide hole 122 ′, the positioning member 122 whose position has been adjusted may be fixed.

And in a state in which the body 131 of the guide part 130 is in close contact with the side surface of the positioning member 122, the height adjustment bolt 142 is attached to the coupling space 133 of the guide part 130 and the guide long hole 132. And it can be combined with the vertical guide hole 141 to protrude. At this time, the head of the height adjustment bolt 142 may be in close contact with the inner surface of the coupling space 133 and may not rotate. In this state, the height is adjusted while ascending and descending within the gap of the vertical guide hole 141 penetrating the side of the positioning member 122, and the installation position can be adjusted by moving back and forth within the gap of the guide hole 132, The guide part 130 whose height or position is adjusted may be fixed by fastening a height adjustment nut 143 to the height adjustment bolt 142 protruding through the vertical guide hole 141.

In a state in which the tightening force of the height adjustment nut 143 is relaxed, the height and front and rear positions of the guide unit 130 can be adjusted, and the height and front and rear positions of the guide unit 130 are adjusted. The process of being fixed again by the fastening force can be repeated.

In addition, the power transmission unit 230 and the power transmission unit 230 in a state in which the pinion gear 220 is installed on one side, that is, the inner surface of the slide member 210, and the power transmission unit 230 is installed on the other side, that is, the outer surface. The pinion gear 220 may be connected to a shaft coupled to the through hole 213. And in a state in which the rotation shaft 310 is installed on one side, that is, the inner side of the slide member 210, and the power transmission unit 230 is installed on the other side, that is, the outer surface, the power transmission unit 230 and the rotation shaft ( 310) can be connected to the shaft coupled to the through hole 213. At this time, the shaft may be integrally rotated by being coupled to the pinion gear 220 and the rotation shaft 310 by force fitting or screwing, and the pinion gear 220 and the rotation shaft 310 are used as a power transmission unit 230. It can be connected and linked.

A drum 320 may be fitted to the rotating shaft 310 and a measuring member 330 may be wound around the drum 320. The rotation shaft 310 and the drum 320 may be integrally formed. In addition, a socket 340 may be inserted between the rotating shaft 310 and the drum 320 to be coupled. In this case, the flow of the drum can be prevented by making the outer peripheral surface of the socket 340 in close contact with the inner peripheral surface of the drum 320.

In the above process, when the pinion gear 220 and the carbonation measurement unit 300 are installed on the slide member 210 and connected by the power transmission unit 230, the slide member 210 is moved in front of the guide unit 130. When moving to the rear, the slide piece 212 of the slide member 210 is coupled to the guide jaw 135 and moved, and at the same time, the pinion gear 220 meshes with the rack gear 134 to produce a carbonation depth measuring device. I can.

By repeating the above process, the manufacturing of the carbonation depth measuring device 10 in which the guide part 130, the slide part 200, and the carbonation measuring part 300 are coupled to one side and the other side of the positioning member 122 can be completed. have.

When the guide part 130, the slide part 200, and the carbonation measurement part 300 are located on both sides of the positioning member 122, any one of the rotation shafts that are in close contact with the inner surface of the slide part 200 is It may be coupled to and overlapped with another axis of rotation.

Referring to FIG. 9, the carbonation depth measuring device 10 may be manufactured by combining the guide part 130, the slide part 200, and the carbonation measuring part 300 on only one side of the positioning member 122.

The process of using the carbonation depth measuring device 10 manufactured by the above process is the case where the guide part 130, the slide part 200, and the carbonation measuring part 300 are coupled to one side of the positioning member 122, and Since the coupling to both sides is the same, the guide part 130 and the slide part 200 and the carbonation measuring part 300 are combined on both sides of the positioning member 122 to stabilize the measurement of the carbonation depth measuring device 10. The description is limited to the case.

Referring to FIG. 10, a guide part 130, a slide part 200, and a carbonation measurement part 300 are coupled to both sides of the positioning member 122 at the tip of the hummer drill 20 on which the drill bit 21 is installed. The band fixing part 110 of the carbonation depth measuring device 10 can be mounted. The band fixing part 110 couples the band member 111 to the tip of the hammer drill 20, and fixes the bent piece of the band member 111 with a band fixing member 112, the band fixing member 112 ) May be a bolt/nut or a fastening member that couples the pin to the bent piece of the band member 111 and pulls and fixes the pin.

Here, a friction member made of rubber may be attached to the inner surface of the band member 111 to increase a contact force with the hammer drill.

When the carbonation depth measuring device 10 is coupled to the hammer drill 20, the slide part 230 may be moved so that the drill bit 21 and the end portion are located on the same line.

11 to 13, when the carbonation depth measuring device 10 in which the position of the slide part 230 is adjusted is in close contact with the vertical surface 30 of the reinforced concrete structure or the ceiling surface 30' of the reinforced concrete structure , The distal end of the slide part 230 of the carbonation depth measuring device 10 and the distal end of the drill bit 21 are in close contact with the vertical surface of the reinforced concrete structure or the ceiling surface, and the operator in this state is the speed control button of the hammer drill 20, that is, The drill bit 11 can be rotated by pressing the operation button.

At this time, while the drill bit 11 rotates while drilling the surface of the reinforced concrete structure, the hammer drill 20 may move in the direction of the reinforced concrete structure, and the slide member 210 may be moved according to the movement of the hammer drill 20 The hammer drill 20 can move in the opposite direction.

The movement of the slide member 210 causes the pinion gear 220 to rotate while moving along the rack gear 134, and at the same time, the rotational force of the pinion gear 220 is transmitted through the power transmission unit 230 to the carbonation measurement unit 300 Can be rotated by interlocking.

In addition, the machining powder that is cut from the surface of the reinforced concrete structure by the rotation of the drill bit 21 and falls down to the measuring member 330, and at the same time, a test solution embedded in the measuring member 330, that is, a 1% solution of phenol talin. The cutting powder on the surface of the reinforced concrete structure that reacted with the test solution is colorless as a carbonized part, and the cutting powder inside the reinforced concrete structure turns red or reddish purple into an alkali part. The driving of the hammer drill 20 may be stopped while turning to red or reddish purple.

Since it is possible to easily check whether or not the grinding powder falling onto the measuring member 330 is discolored, it is possible to reduce a measurement error at the discoloration point.

Carbonation of the reinforced concrete structure by checking the moving distance of the slide member 210 before the operator confirms the discoloration of the cutting powder and the driving of the hammer drill 20 is stopped and the driving of the hammer drill 20 stops. You can measure the depth. For example, by displaying a measurement scale on the upper surface of the guide part 130 and the body 131, the carbonation depth of the reinforced concrete structure may be measured.

When the carbonation depth of the reinforced concrete structure is measured by the above process, after removing the hammer drill 20 from the reinforced concrete structure, the measuring member 330 wound around the drum 320 is replaced with a new one, or the measuring member ( After the used measuring member 330 is cut out according to the number of times 330 is wound, the next operation may be waited.

In this embodiment, the test reagent may be applied to the nonwoven fabric, and then wound around the drum 320, or the test reagent may be sprayed after winding it first. Either way, the work can be done very easily.

In addition, the present embodiment can perform work not only on the vertical surface of the concrete structure, but also on the horizontal surface, that is, the ceiling surface. Even in the case of the ceiling surface, there is no special problem in measurement because the cutting powder spreads widely. However, a guide plate (not shown) may be installed on the slide member 210 in order to allow the cutting powder to fall easily on the measuring member 330. The guide plate is installed inclined to about 45 degrees so that the cutting powder can fall toward the measuring member 330.

In addition, referring to FIG. 14, the guide part 130 may further include an inner part 400 that guides the horizontal movement of the guide part 130, and the inner part 400 is in close contact with the guide part 130. At least one first horizontal inner member 410 concave or protruded from the side of the guide unit 130 is engaged with the plurality of second horizontal inner members 420 protruding or concave on the side of the positioning unit 120 to be engaged. Can be. Therefore, it is easy to maintain the horizontal guide portion 130, as well as accurately guide the horizontal movement of the guide portion 130, it is possible to maintain a stable coupling state by preventing the rotation of the guide portion 130 with respect to the position adjustment portion 120. .

The present invention can be easily installed and used on the hammer drill 20 by the band fixing part 110, and can be removed after use. In addition, the work can be very efficient since no auxiliary manpower or the like is required for the measurement work. In addition, the measuring member 330 can be easily installed and replaced. In addition, it can be easily applied to a horizontal surface as well as a vertical surface of a concrete structure. In addition, it can be installed and used on the hammer drill 20 of various types and sizes.

In the above, even though all the components constituting the embodiments of the present invention are described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all the constituent elements may be configured or operated by selectively combining one or more. In addition, terms such as "include", "consist of" or "have" described above mean that the corresponding component may be present unless otherwise stated, excluding other components Rather, it should be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art, unless otherwise defined. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: carbonation depth measuring device 100: fixed part
110: band fixing unit 111: band member
112: band fixing material 120: position adjustment unit
121: positioning bolt 122: positioning member
123: position adjustment nut 124: moving guide member
130: guide part 131: body
132: guide long hole 133: combined space
134: rack gear 135: guide jaw
140: height adjustment unit 141: vertical guide hole
142: height adjustment bolt 143: height adjustment nut
200: slide part 210: slide member
211: body 212: slide piece
213: through hole 220: pinion gear
230: power transmission unit 300: carbonation measurement unit
310: rotation shaft 320: drum
330: measuring member 340: socket
400: horizontal inner member 410: first horizontal inner member
420: second horizontal transverse inner member

Claims (10)

It is bonded to a hammer drill to measure the carbonation depth of a reinforced concrete structure,
A fixing part detachably coupled to the hammer drill;
A slide part that is slidably coupled to the fixed part in a front-rear direction; And
Including; a carbonation measurement unit rotatably coupled to the front of the slide unit, rotating in conjunction with the sliding movement of the slide unit,
When the hammer drill moves forward while the hammer drill is operating, the cutting powder that is cut and dropped by the hammer drill falls and discolors to the carbonation measuring unit axially coupled to the slide unit pushed back by the reinforced concrete structure. Measuring the depth of carbonation of the structure,
The fixing unit includes a band fixing unit detachably coupled to the hammer drill, a position adjustment unit coupled to the band fixing unit, and a guide unit coupled to the position adjustment unit,
A carbonation depth measuring device that is coupled to the slide portion to be slidably moved in a front-rear direction to the guide portion. delete The method according to claim 1,
The band fixing part is a carbonation depth measuring apparatus comprising a band member mounted on the hammer drill and a band fixing member fixing the band member. The method according to claim 1,
The positioning unit includes a positioning bolt fixed to the band fixing portion, a positioning member coupled to the positioning bolt and movable left and right from the positioning bolt, and a positioning nut fastened to the positioning bolt. Carbonation depth measuring device. The method according to claim 1,
The guide unit includes a'C'-shaped body coupled to the positioning unit, a guide hole penetrating in the body in a longitudinal direction, a coupling space formed outside the guide hole, and an inner lower side of the body. An elasticized depth measuring device comprising a rack gear and a guide jaw recessed in the upper and lower corners of the body. The method according to claim 1,
Including a height adjustment part for adjusting the height of the guide part,
The height adjustment unit includes a vertical guide hole provided in the position adjustment unit, and a height adjustment bolt and a height adjustment nut for fixing a guide part moving up and down along the vertical guide hole. The method according to claim 1,
The slide unit may include a slide member that is slidably coupled to the fixing unit in a front-rear direction, a pinion gear axially coupled to the slide member and rotating according to the sliding movement of the slide member, and the rotation power of the pinion gear is carbonated. Including a power transmission unit for transmitting to the measurement unit,
The power transmission unit is a carbonation depth measuring apparatus, characterized in that for rotating by connecting a shaft coupled to the pinion gear and a shaft coupled to the carbonation measuring unit. The method according to claim 1,
The carbonation measurement unit includes a rotation shaft axially coupled to the slide unit, and a drum coupled to the rotation shaft. The method according to claim 1,
Carbonation depth measuring apparatus further comprising a horizontal inner portion for guiding the horizontal movement of the guide portion. The method of claim 9,
The horizontal transfer inner portion includes a first horizontal transfer inner member concave or protruding from the side of the guide portion, and a second horizontal transfer inner member protruding or concave on the side of the positioning unit to be coupled to the first horizontal transfer inner member. A device for measuring the depth of carbonation.

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