KR101628794B1

KR101628794B1 - Staff Cradle

Info

Publication number: KR101628794B1
Application number: KR1020140136590A
Authority: KR
Inventors: 노희아
Original assignee: 노희아
Priority date: 2014-10-10
Filing date: 2014-10-10
Publication date: 2016-06-21
Also published as: KR20160042550A

Abstract

The stiff stand according to one aspect of the present invention includes a main body having one side opened, a spreading plate accommodated in the main body and vertically lifted and formed at least one of the main body and extending to an upper portion of the main body, And a laser director for receiving the laser beam irradiated in the horizontal direction in the leveler may be provided on the front side.

Description

Staff Cradle

The present invention relates to a stiff stand, and more particularly, to a stiff stand capable of combining a staff for measuring a level, a plurality of bodies separated from each other, The present invention relates to a stiff stand capable of marking without movement.

Generally, in order to make a horizontal plane with respect to a construction floor in a construction site or the like, a horizontal level is measured. In this way, a measurement level and a staff are used for horizontal level measurement.

That is, the measurement level unit irradiates the laser in one direction or 360 degrees, and the laser is irradiated in the horizontal direction, thereby being a reference for adjusting the horizontal level of the construction floor.

A conventional method of measuring a horizontal level using a measurement level and a staff is as follows. An operator uses a laser beam irradiated in a horizontal direction on a measurement level machine supported by a tripod on a floor, And the distance from the laser beam irradiated from the measurement level device is measured in a state in which the staff is leaned or brought close to the mold for forming the reinforcing bar structure or the wall or the retaining wall. The marker is used to mark the scale line or the leader line on the corresponding reinforcing structure or form, and concrete is laid up to the leader line to complete the construction floor.

As described above, the spacing distance is determined in advance by using the laser and the staff of the measurement level period irradiated in the horizontal direction, and the leader line is displayed on the reinforcing structure or the die of the portion indicating the predetermined spacing distance.

However, since the reinforcing structure or the formwork is complicatedly installed at the construction site, it is difficult to precisely match the laser irradiated from the measurement level device to the scale portion of the staff, and the leader line is correctly displayed on the reinforcing structure or die coming to the measured position There is a problem that it is very difficult to do.

In particular, when a marker is inserted between the reinforcing structures, a leader line is not displayed properly. Therefore, there is a problem that an error occurs between a plurality of leader lines.

Since usually the construction site of the bar that is constructed in the pillar ² 20~30m area unit, and therefore becomes a number of reinforcement structure there is a column number of the dice installed, from the measured level group by the number of these reinforcement structures and mold There is a problem that the irradiated laser is not irradiated to the staff at the position to be measured due to collision with the reinforcing structure or the mold.

This is because the laser beam at the measurement level has a straightness, for example, when there is a reinforcing structure or a mold at the front of the position to be measured, the laser beam comes into contact with the reinforcing structure or the mold.

Such a problem results in that the horizontal level measurement can not be precisely performed, and consequently, even if the concrete is laid, the floor of the construction can not be leveled at all.

In order to display the leader line, the operator must hold the staff member and the other worker must mark the leader line with the marker corresponding to the specific scale of the staff member. Therefore, the worker must move together to display the leader line, And it is required to put markers between complex reinforcing structures and display them. Therefore, it takes a lot of time and effort to display the leader lines, which causes a delay in the construction period.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stiff stand which can extend a height of a stiff stand to a great extent.

It is still another object of the present invention to provide a star stand which is provided with a marking pen whose angle is variable on a star stand so that marking can be performed on the wall without being disturbed by the obstacle.

In order to achieve the above object, according to one aspect of the present invention, there is provided a stiff stand, comprising: a main body having one side opened; a main body which is accommodated in the main body and vertically moves up and down, And a laser director which is coupled to an upper portion of the extension plate and receives laser beams irradiated in a horizontal direction in a leveling unit.

Wherein the main body has a scale portion marked with a scale on an outer side surface of the outer side and accommodating the extension plate therein and a lifting protrusion provided on the inner side of the scale portion and guiding the lifting plate up and down, And a supporting member which is provided at a lower end of the housing to allow the main body to be supported on the floor, a conveying rod formed to penetrate through the supporting member and extending upward from the inside of the accommodating portion, And a conveying unit having a conveying plate for ascending and descending the conveying unit.

Wherein the extension plate includes at least one extension portion having one side inserted into a receiving portion provided inside the main body and coupled to an elevating projection provided inside the receiving portion and at least one extending portion passing through the extending portion, A fixing part for lifting and fixing the extension part to the upper side by the guide part and a fixing part for fixing the extension part to the lower part of the extension part and having one side inserted into the accommodation part A marking pen, and an engaging portion for rotating the marking pen so that the angle of the marking pen varies vertically and horizontally.

Wherein the engaging portion includes a guide plate having a receiving space formed therein having a stepped portion for accommodating at least one guide rod having a different diameter on the inner side, an insertion protrusion coupled between the side wall of the receiving space and the guide rod, A magnet provided at a lower end of the protrusion and having an engaging plate having a engaging hole to which the marking pen is engaged; a magnet fixed by a step of the accommodating space to allow the engaging plate to be detachable from the guide plate; And a separation preventing plate formed as a semicircle for preventing the guide rod from moving in the accommodating space.

Wherein the marking pen includes a hinge portion having a rotation protrusion inserted into the coupling hole, a marker portion horizontally moving through both inner side surfaces of the hinge portion and having a marker pen on the front surface thereof, And a retractable portion accommodating the marker portion at the other end of the pen and providing elasticity of the marker portion.

According to the star stand according to the present invention, since a plurality of extension portions provided with a fixing device in the main body can move up and down, the level can be easily measured.

Further, a joining member capable of joining the marking pen is provided at the lower end of the extended portion, and the joining member can be rotated by the hinge portion to mark the wall.

1 is a perspective view showing a stiff stand according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of a star stand according to an embodiment of the present invention; FIG.
FIG. 3 is a perspective view showing a state where a coupling part is separated from a main body according to an embodiment of the present invention; FIG.
4 is an exploded perspective view showing a coupling portion according to an embodiment of the present invention;
5 is a cross-sectional view of the coupling portion shown in Fig.
6 to 7 are plan views showing a marking pen rotating and marking in an extension plate according to an embodiment of the present invention.
FIG. 8 is a flowchart showing a lifting and lowering of a stiff stand according to an embodiment of the present invention; FIG.
FIG. 9 is a side view showing a state in which a scale staff is coupled to an upper portion of a stiff stand according to another embodiment of the present invention; FIG.
10 is a perspective view showing an extension part extending a stretchable portion of a star stand according to another embodiment of the present invention.

Hereinafter, a star stand according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a stiff stand according to an embodiment of the present invention, FIG. 2 is an exploded perspective view illustrating a stiff stand according to an embodiment of the present invention, and FIG. Fig. 2 is a perspective view showing a state in which a coupling part is separated from a main body according to the embodiment of the present invention;

1 to 3, the star stand 10 according to an embodiment of the present invention includes a main body 100 having a level measurement scale on a surface thereof, An extension plate 200 extending upward from the main body 100 and extending upwardly from the main body 100, and a laser beam receiving unit for receiving a laser beam radiated in the horizontal direction from the leveling unit, And a level reference plate 300 having a director 310 on its front surface.

The main body 100 includes a scale unit 110 having a scale marked on an outer side of the main body 100 to receive the extension plate 200 therein and an extension plate 200 provided inside the scale unit 110, A supporting portion 130 provided at a lower end of the accommodating portion 120 to support the main body 100 on the floor, And a transfer unit 140 formed through the support unit 130.

The scale 110 may be marked on one side of the main body 100 and the main body 100 may include a scale 110 to prevent the scale 110 from being erased when it touches the ground, The edge of one side of the main body 100 provided with the protrusion 110 protrudes by a predetermined length so that the scale part 110 does not touch the ground surface.

The scale unit 110 may be provided at a long side of one side of the main body 100 and the scale unit 110 may include a scale unit 110 provided on the extension plate 200, May be formed in the same manner as the first electrode 110.

The graduation part 110 may be excluded when the graduation staff 20 is engaged.

The accommodating portion 120 may be provided on the inner side of the main body 100 provided with the scale portion 110. The accommodating portion 120 may be provided on the inner side of the main body 100 so that the extension plate 200 can vertically move up and down, And may include a lifting projection 121.

The support part 130 may be provided at the lower end of the accommodating part 120 and may be formed to block the main body 100 and the accommodating part 120 so that the main body 100 can be supported on the floor . The support portion 130 may extend outwardly from the main body 100 to support the extension portion 200 at the bottom when the extension portion 200 is coupled to the accommodation portion 120.

In addition, the supporting part 130 may be provided with a hole at a position where the receiving part 120 is formed, so that the conveying part 140 can be passed therethrough.

The transfer unit 140 includes a transfer rod 141 formed to penetrate through the support unit 130 and extending upward from the inside of the accommodating unit 120, And a conveying plate 142 that vertically moves up and down from the inside of the accommodating portion 120. [

The transfer rods 141 may extend to the upper portion of the main body 100 through separate holes formed between the supporting portion 130 and the receiving portion 120. The transfer rod 141 may be formed in various shapes such as a circle or a square and the lower end of the transfer rod 141 may be provided at the same position as the bottom surface of the support part 130, The support rod 130 may not obstruct the support rod 130 from supporting the main body 100 by the feed rod 141 after passing through the support rod 130.

The conveyance plate 142 may be provided on the support plate and the long side of the conveyance plate 142 may be formed in the same manner as the support plate. The conveying plate 142 can be vertically moved up and down inside the receiving part 120 and the conveying plate 142 can be guided by the conveying rod 141 and the elevating protrusion 121.

The extension plate 200 includes a lifting groove 213 which is inserted into a receiving portion 120 provided inside the main body 100 and is coupled to the lifting protrusion 121 provided inside the receiving portion 120, A guide part 220 having a circular guide bar 221 passing through the extension part 210 and having at least one circular shape; A fixing part 230 for lifting the fixing part 210 up and down by the guide part 220 and fixing the fixing part 230 to the lower part of the extension part 210, A pen 250 and an engaging part 240 for rotating the angle of the marking pen 250 so as to vary vertically and horizontally.

The extension part 210 includes a first extension part 211 formed at the upper end of the support part 130 of the main body 100 and a second extension part 212 provided at the lower end of the level reference plate 300, .

The first extension portion 211 and the second extension portion 212 may be formed in the same manner. When the first extension portion 211 is lifted up and down, And can be raised and lowered in the same manner as the portion 211. The first extending portion 211 is formed to be smaller in height than the second extending portion 212 so that the second extending portion 212 is moved upward and downward after the first extending portion 211 is lifted upward, So that it can be lifted off from the main body 100.

For example, when the first extension portion 211 is formed to have a height greater than the second extension portion 212, the first extension portion 211 may extend from the upper end of the main body 100 to the second extension portion 212 The second extension portion 212 is lifted and lowered from the upper end of the first extension portion 211 rather than the main body 100 so that the operator can move the main body 100 and the first extension portion When the first extension 211 is formed to have a height smaller than that of the second extension 212, the second extension 212 may be raised or lowered, The lower end of the second extending portion 212 is hooked to a step between the main body 100 and the first extending portion 211 to lift the main body 100 only by holding the main body 100, So that the maximum length can be maintained.

The lifting groove 213 may have a length equal to the length of the lifting protrusion 121 so as to be coupled to the lifting protrusion 121 provided inside the main body 100, So that it can be guided not to move.

The guide part 220 may penetrate the inside of the extension part 210 provided outside the main body 100 and may include a plurality of guide bars 221 having different diameters.

The guide rod 221 may be formed in various shapes such as a circular shape and a square shape. The guide rod 221 may have a different diameter for each of the extended portions 210.

For example, the guide rod 221 formed at the lower end may be formed to be smaller in diameter than the guide rod 221 provided at the upper portion and inserted into the guide rod 221 provided at the upper portion.

The lower end of the guide bar 221 provided at the lower end is coupled to the conveyance plate 142 and can be raised and lowered together with the conveyance plate 142.

The fixing part 230 can lift the extension part 210 up and down by the guide part 220 and fix the extension part 210 and the transfer plate 142 at the same time A fixing device 231 may be provided. In addition, the extended portions 210 extending through the plurality of guide rods 221 may also be provided with the extending and securing devices 232 and may be fixed to the guide rods 221, respectively.

The operator can reduce the inconvenience of measuring the level by holding the level measurement staff by the fixing unit 230 and reducing the number of persons for measuring the level.

The extension fixing device 232 can use various springs, such as a leaf spring, which can be fixed by applying pressure to the guide rod 221 passing through the inside of the extension 210 by a simple operation.

The engaging portion 240 is coupled to the lower ends of the plurality of extension portions 210 and the marking pen 250 is coupled to the outer side of the engaging portion 240 to rotate the marking pen 250 horizontally.

The marking pen 250 includes a hinge part 251 having a rotation protrusion 252 for changing the angle of the marking pen 250 and a through hole 252 formed in the inside of the hinge part 251 The marker 253 is inserted into the other end of the marker pen 254 with respect to the hinge 251. The marker 253 is inserted into the marker 253, And a stretchable and contractible portion 255 accommodating the marker portion 253 and providing elasticity of the marker portion 253.

The hinge part 251 may be inserted into the coupling hole 246 and may include a rotation protrusion 252 formed in the coupling hole 246 and having the same shape as the coupling hole 246, The rotation protrusion 252 may be formed to have a length that passes through the coupling hole 246. The hinge part 251 may include a through hole to which the marker part 253 is coupled.

The level reference plate 300 may include a laser director 310 coupled to an upper portion of the extension plate 200 and receiving laser beams irradiated horizontally from the leveler.

The laser director 310 is for generating a light receiving signal by directing a laser to be irradiated in a horizontal direction in a leveler. The laser director 310 is detachable from the extension plate 200 and rotates in a 360 ° direction to interfere with the laser .

In addition, the laser director 310 may be combined with a graduation staff 20 which is generally used in a construction site.

FIG. 4 is an exploded perspective view illustrating a coupling unit according to an embodiment of the present invention, FIG. 5 is a cross-sectional view illustrating the coupling unit shown in FIG. 4, FIG. 2 is a plan view showing a marking pen that performs marking.

4 to 7, the engaging part 240 according to an embodiment of the present invention includes a receiving space (not shown) having a stepped portion to accommodate at least one guide rod 221 having a different diameter, The guide plate 241 is fixed by the step of the receiving space 242 and is fixed to the guide rod 221. The coupling member 244 is detachable from the guide plate 241 A magnet 243 coupled with the marking pen 250 and a coupling member 244 coupled to the coupling member 244 to prevent the guide rod 221 from moving inside the accommodation space 242 A separation barrier 248 formed as a semicircle may be provided.

The guide plate 241 is coupled to the lower end of the extension 210 and has one side protruded to be received in the receiving portion 120 of the main body 100. The guide plate 241 may be provided with a receiving space 242 for receiving the guide rod 221. The receiving space 242 may include guide rods 221 ) Can be accommodated.

The accommodating space 242 can accommodate guide rods 221 having diameters different from each other at the upper and lower portions. In order to accommodate the magnets 243, the magnets 243 are moved .

The guide plate 241 may have an engaging protrusion 241a protruding upward to be coupled to the extending portion 210. The coupling protrusion 241a may be coupled to the extension 210 by a helical or interference fit and the insertion plate 241b protruding from the side surface of the guide plate 241 is inserted into the receiving portion 120 It is possible to prevent the guide plate 241 from rotating when lifting up and down.

Also, the insertion plate 241b may be coupled to the lifting and lowering protrusion 121 provided in the receiving portion 120 and guided.

The magnet 243 may be received in the accommodation space 242 so as to be caught by a step formed in the accommodation space 242 provided inside the guide plate 241. The magnet 243 may be provided with a separate hole to allow the guide rod 221 having a small diameter to pass therethrough. The guide rod 221 having a large diameter may be hooked by the magnet 243, It may not fall.

The guide rod 221 may be formed of aluminum or the like not adhering to the magnet 243 by the magnet 243 and penetrate between the magnets 243 and may not be separated from the accommodating space 242 .

The coupling member 244 includes an insertion protrusion 245 coupled between the inner wall of the accommodation space 242 and the guide bar 221 and a locking protrusion 245 formed at the lower end of the insertion protrusion 245, And a coupling plate 247 having a coupling hole 246 to be coupled therewith.

The insertion protrusion 245 may extend upward from the upper end of the coupling plate 247 and may be formed in a semicircle and be received in the receiving space 242. The insertion protrusion 245 can be received between the guide rod 221 received in the receiving space 242 and the inner wall of the receiving space 242 and can be rotated by the operator inside the receiving space 242 have.

The coupling plate 247 may have a coupling hole 246 formed at the center of the coupling plate 247. The coupling hole 246 may be formed so that both sides thereof penetrate . The engaging plate 247 has a semi-circular surface contacting the guide bar 221 like the insertion protrusion 245. When the insertion protrusion 245 rotates, the engaging plate 247 rotates together Can be done.

The separation preventing plate 248 is coupled to the other side of the insertion protrusion 245 in the accommodation space 242 and is formed in a semicircle shape to prevent the guide rod 221 from moving in the accommodation space 242. [ . The detent plate 248 is coupled to the other side of the insertion protrusion 245 so that the insertion protrusion 245 and the guide rod 221 are not rotated or released in the accommodation space 242, So that a separate space is not generated in the space.

The coupling plate 247 may be freely detachable from the guide plate 241 by the magnet 243.

The marking pen 250 includes a hinge portion 251 having a rotation protrusion 252 inserted into the engagement hole 246 and a through hole provided in the inside of the hinge portion 251, A marker 253 having a marker pen 254 on the front and a marker 253 on the other end of the marker pen 254 with respect to the hinge 251, And an elastic part 255 for providing elasticity of the part 253.

The marker 253 may be formed to penetrate through the through hole and horizontally move through the through hole.

A marker pen 254 provided with a printing material such as a graphite core or ink is provided on one end of the marker portion 253 so as to be able to mark a wall or a reinforcing bar at a desired position by the marker portion 253, As shown in FIG.

The extension / contraction part 255 is provided at the other end of the marker pen 254 with respect to the hinge part 251 so as to provide elasticity so that the marker pen 254 can return to its original position after being horizontally moved. have. The stretchable and contractible portion 255 may be formed of a spring.

The stretchable and contractible portion 255 may be formed long to move the marker pen 254 to a reinforcing bar or a wall which is distant from the star stand.

6 to 7, the marking pen 250 supports the main body 100 on the floor without being disturbed by the shape of the wall when the marking is performed on the wall, The marker pen 254 can be moved to perform marking.

For example, when marking on the corner, the main body 100 is supported on the floor for marking on one wall and then marked on the wall with the marking pen 250, There is a disadvantage that marking must be performed by measuring the level again. Therefore, since the marking pen 250 can be rotated on the main body 100 and then the marker pen 254 can be horizontally moved to mark the corner wall, time can be shortened.

In addition, the marking pen 250 can mark the level between the reinforcing bars at the construction site where a plurality of reinforcing bars are provided.

Since the engaging plate 247 can be detachably attached to the magnet 243, the marking pen 250 can be freely detached and attached to the marking pen 250.

FIG. 8 is a flowchart illustrating a lifting and lowering of a stiff stand according to an embodiment of the present invention.

8, the star stand 10 according to an exemplary embodiment of the present invention can sequentially move up and down a plurality of extended portions 210 in the main body 100. As shown in FIG.

The extension part 210 inserted into the main body 100 and vertically moving up and down can pass through the guide rod 221 and move up and down. The extending portion 210 may extend upward by the conveying plate 142 coupled to the lower end of the guide bar 221. The extending portion 210 may be horizontally held by the level reference plate 300, The position of the transfer plate 142 can be determined according to the position of the transfer plate 142.

For example, when the marking pen 250 is provided at the lower end of the marking pen 250, the marking pen 250 is horizontally aligned with the length of the marking pen 250, The extension plate 200 can be raised from the position of the plate 142 to the zero point.

8, the main body 100 operates the fixing device 231 of the extension part 210 to raise the transfer plate 142 to a predetermined height, thereby moving the extension part 210 It can be raised to a predetermined height as a whole.

8, the first extension 211 is operated by operating the extension fixing device 232 of the first extension 211 provided at the upper portion of the conveyance plate 142, as shown in the third drawing of FIG. 8, And may be lifted upwards together with the second extension 212 at the rod 221.

8, after fixing the extension fixing unit 232 of the first extension unit 211, the extension fixing unit 232 of the second extension unit 212 is operated, Only the second extension part 212 can be extended to the upper part to extend the extension length.

8, after extending the first extending portion 211 to the uppermost end of the main body 100, the second extending portion 212 is extended to be detached from the main body 100 to measure the level can do. The second extension part 212 is fixed to the main body 100 by the guide rod 221 so that the second extension part 212 is not separated from the main body 100 and is formed as a high wall or deep puddle The level can be measured to the point where it is out of the reach of the user.

For example, if the second extension portion 212 extends only at the height of the main body 100, since the height is limited, it may be difficult to measure the level at the deep puddle. However, since the second extension part 212 is detached from the main body 100 by the guide rod 221 but can not be detached but can be connected to the main body 100 by the extension fixing device 232, Even if the level is measured, the stiff stand 10 may not be dropped or damaged.

Hereinafter, the same reference numerals are used for the same components as those of the star stand according to another embodiment of the present invention, and a detailed description thereof will be omitted.

FIG. 9 is a side view showing a state in which a graduated staff is coupled to an upper part of a star stand according to another embodiment of the present invention.

9, the star stand 10 according to another embodiment of the present invention includes a graduation staff 20 having a scale marked on a front surface of a level reference board 300 coupled to an upper portion of the extension board 200 Can be combined.

The level reference plate 300 may include a laser director 310 coupled to an upper end of the extension plate 200 and receiving laser beams irradiated in a horizontal direction at a leveler. In addition, fixing bars 322 may be provided at both ends of the level reference plate 300.

The graduation staff 20 can use a graduated staff 20, which is generally indicated on the construction site.

The level reference plate 300 may further include a fixing band 320 for coupling the scale staff 20. The fixing band 320 may include a stretchable synthetic resin band. The fixing band 320 may include a fastening member 321 for fixing the scoring staff 20 after contacting the level reference plate 300.

The level reference plate 300 may be configured such that the lower end of the scale staff 20 is fixed to the upper end by the main body 100 having a larger diameter than the level reference plate 300 after the graduation staff 20 is fixed, A screw may be provided to protrude outwardly from the level reference plate 300 because the graduation staff 20 is not formed in a straight line.

The screw may be formed to penetrate through the level reference plate 300 and the upper end of the graduation staff 20 may protrude outward to be in line with the lower end according to the length of the screw protrusion.

10 is a perspective view illustrating a spiral portion extending a stretchable portion of a star stand according to another embodiment of the present invention.

10, the marking pen 250 according to another embodiment of the present invention includes a hinge portion 251 having a rotation protrusion 252 inserted into the engagement hole 246, A marker portion 253 which penetrates through the through hole provided in the inner side of the hinge portion 251 and moves horizontally and has a marker pen 254 on the front side; And a stretchable and shrinkable portion 255 accommodating the marker portion 253 at an end thereof and providing elasticity of the marker portion 253.

The stretchable and contractible portion 255 may further include a spiral portion 256 extending the length of the stretchable and contractible portion 255. The spiral part 256 may be formed on the rear surface of the stretchable and contractible part 255 so as to penetrate the inside of the stretchable and contractible part 255 and may have a spiral hole to adjust the length thereof from the rear surface of the stretchable and contractible part 255 have.

The spiral part 256 may penetrate deeply into the stretchable and contractible part 255 so that the stretchable and contractible part 255 may be elongated when the distance between the stiff stand 10 and the wall, have.

The spiral part 256 inserted into the extensible part 255 may be provided with a shim such as a graphite core provided in the marker pen 254 for marking the wall. The spiral portion 256 can be penetrated deeply into the stretchable and contractible portion 255 so as to adjust the length of the padding.

While the present invention has been described with respect to the preferred embodiments, it is to be understood that the subject matter of the invention is not limited to the disclosed embodiments. Those skilled in the art, who understands the spirit of the present invention, can readily suggest other embodiments by adding, changing, deleting, adding, or the like of components within the scope of the same idea, I would say.

10: Staf cradle 20: Scale staf
100: main body 110: scale part
120: accommodating portion 121:
130: Support part 140:
141: Feed rod 142: Feed plate
200: extension plate 210: extension part
211: first extension part 212: second extension part
213: lifting groove 220: guide portion
221: guide rod 230:
231: fastening device 232: extension fastening device
240: engaging portion 241: guide plate
241a: engaging projection 241b:
242: accommodation space 243: magnet
244: coupling body 245: insertion projection
246: coupling hole 247: coupling plate
248: Leaving prevention plate 250: Marking pen
251: hinge portion 252: rotation projection
253: marker part 254: marker pen
255: stretchable and contractible part 256:
300: level reference plate 310: laser director
320: fixing band 321: fastening member
322: Fixing rod 323: Screw

Claims

A main body having one side opened,
An extension plate accommodated in the main body and vertically lifted and extended at an upper portion of the main body,
A level reference plate coupled to an upper portion of the extension plate and having a laser director for receiving laser beams irradiated in a horizontal direction in a leveling unit,
Wherein the main body has a scale portion marked on an outer side surface thereof and accommodating the extension plate therein,
An accommodating portion provided on an inner side of the graduation portion and having a lifting protrusion for guiding the lifting plate up and down,
A support portion provided at a lower end of the accommodating portion to support the main body from the floor,
A conveying portion formed to penetrate through the support portion and extending upward from the inside of the receiving portion; and a conveying plate that vertically moves up and down from the inside of the accommodating portion by the conveying rod and the elevating projection,
Wherein the extension plate includes at least one extension portion having one side inserted into a receiving portion provided inside the main body and having an elevating groove coupled to the elevating projection provided inside the receiving portion,
A guiding part having a circularly formed guide rod passing through the extended part and provided with at least one or more guide parts;
A fixing part for elevating and fixing the extended part by the guide part,
A marking pen coupled to a lower end of the extended portion and having one side inserted into the accommodating portion,
And an engaging portion for rotating the marking pen so that the angle of the marking pen varies vertically and horizontally.

The method according to claim 1,
Wherein the engaging portion includes a guide plate having a receiving space formed therein with a stepped portion for accommodating at least one guide rod having a different diameter on the inner side,
A coupling plate having an insertion protrusion coupled between a side wall of the accommodation space and the guide bar, and a coupling plate provided at a lower end of the insertion protrusion and having a coupling hole to which the marking pen is coupled;
A magnet fixed by the step of the accommodation space and allowing the coupling plate to be detachable from the guide plate,
And a separation preventing plate coupled to the other side of the insertion protrusion and formed in a semicircle for preventing the guide rod from moving in the receiving space.

3. The method of claim 2,
Wherein the marking pen includes a hinge portion having a rotation protrusion inserted into the engagement hole,
A marker portion moving horizontally through both side surfaces of the hinge portion and having a marker pen on the front side,
And a stretchable portion that accommodates the marker portion at the other end of the marker pen with respect to the hinge portion and provides elasticity of the marker portion.

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