KR20080048771A - Laser horizontality-perpendicularity equipment and a trivet - Google Patents

Abstract

A tripod for a laser level is provided to prevent collision between a weight and internal parts by inhibiting free movement of the weight during transport. A tripod(200) for a laser level(100) includes a horizontal laser, a vertical laser, a weight, a position fixing switch(140), and an O-ring. The weight interlocks with the horizontal laser and the vertical laser and is always perpendicular to the ground. The position fixing switch is formed on one side of a housing(101) and interlocks with the O-ring. The weight is moved inside the O-ring by an operation of the switch, making close contact with the weight during movement of the tripod for preventing interference and collision between the weight and other parts of the tripod.

Description

Laser horizontal vertical device and combined trivet device {Laser horizontality-perpendicularity equipment and a trivet}

1 is a perspective view showing a laser horizontal vertical device and a trivet device in a separated state according to the present invention, respectively

FIG. 2 is an exploded perspective view showing the laser horizontal vertical device in FIG.

3 is a schematic cross-sectional view of the laser horizontal vertical device according to FIG.

Figure 4 is an exploded perspective view showing the structure of the trivet is fastened to the lower end side of the laser horizontal vertical device according to Figure 2,

FIG. 5 is a view showing fine adjustment of the laser horizontal vertical device mounted on the trivet according to FIG.

6 is a perspective view showing the trivets in a combined state separated by FIG. 4,

7 is a perspective view illustrating a state in which the magnet body formed on the rear side of the trivet is attached and used to the side of the steel structure such as the steel beam using the present invention.

※ Brief description of the main symbols in the drawings

100; Laser horizontal vertical apparatus 101; housing

110; Horizontal laser irradiation unit 120; Vertical laser irradiation unit

130; Weight 140; Position fixing switch

141; "O" ring portion 150; Back cover

200; Tricot 210; Body

211; Axis 212; Horizontal liquid crystal system

213; Shaft portion 214; Insertion Recess

215; A housing 220; Leg

221; Pivot leg 222; Height adjustment leg

223; Screw rod 230; Joint

231; Cover body 231a; Fixture

232; Hoe-dong 232a; Combined groove

233; Fine tuning plate 240; Lateral fixed part

241; A housing 242; Magnet

242a; Embossing portion 243; volt

250; Fine adjustment unit 251; Support

252; Spring 253; Tan District

254; Fine adjustment 254a; Fuxing District

255; Fastener

The present invention relates to a device for indicating a horizontal and vertical line on a construction site, and more particularly, to a laser horizontal vertical device using a laser, and to a trivet device that is combined with this to enable fine correction of left and right.

In the construction of buildings, the construction of these structures so as to be horizontal and vertical with respect to the direction of gravity is one of the important conditions in the performance and durability of these structures. Therefore, in the fields of architecture and civil engineering, accurate setting of horizontal and vertical positions (reference lines) in space is one of the important tasks.

As such, the work method adopted as a conventional method for setting the horizontal and vertical standards applied to the construction work of the building is to vertically hang a long line attached to the ceiling when measuring vertical or setting a vertical point for vertical construction of the pillar. To measure the accuracy or set the vertical point, and for horizontal construction of the floor, follow the working method of setting the horizontal measurement or horizontal point using a horizontal ruler.

This conventional vertical and horizontal setting method is a method of measuring by hanging the rope artificially on the ceiling, the work is difficult and dangerous, as well as difficult to expect accurate setting due to the swinging of the wire and also to measure only from the top to the bottom In addition to the inconvenience, there are problems such as lack of speed and accuracy to work from place to place from time to time.

Alternatively, measure the horizontal standard as the central position of the bubble formed in the glass tube in which the liquid is enclosed, and place it in a fixed position using a thread or steel wire in accordance with the horizontal plane, and then place the brick on the horizontal plane and the horizontal line. In order to build a wall, or to build a parallel structure of wood, and to establish a vertical line, a procedure such as hanging a weight on a thread, etc., holding a vertical standard, and setting up a pillar, etc., is needed. There are a horizontal indicator (level meter) for measuring the bubble position in the liquid tube with the naked eye to measure the horizontality, and a vertical indicator for hanging the weight on the thread as described above to form an additional vertical line with the thread by gravity to measure the verticality.

Therefore, in order to perform the horizontal and vertical work required for the construction, repair, and other work of various structures such as welding of large structures in existing construction, civil engineering, shipbuilding, large sculptures, and art works, we use thread, weight, level gauge, surveying instrument, etc. Since it takes a considerable amount of time and work according to the installation and location change of the device, it is possible to see the horizontal level microscopically at every location.However, when the work target is huge, macroscopic observation is difficult, so horizontal work and vertical work are required. There is an issue that is followed by many difficulties.

A laser display device is disclosed as one of means for solving such a problem, and the like, which typically displays a laser dot instead of displaying a laser beam line. It is difficult and is acting as a factor to lower productivity in the workplace.

As an example, as a device for setting horizontal and vertical lines using a laser beam, there may be mentioned 'Horizontal and vertical line indicators using a laser', which is a Korean Patent Registration No. 415318.

In the case of the prior art, "Gyro Horizon having a center fixed to the upper portion of the enclosure body capable of rotational flow in each direction, the weight weight means for pendulum movement based on the center of the gyro horizon, the weight tracking Horizontal and vertical laser engine coupled with the stage and irradiating the laser beam in the horizontal and vertical direction, combined with the weight means, and outputs the laser beam radiated from the horizontal and vertical laser engine in the same plane as the horizontal or vertical plane A horizontal and vertical laser beam conversion means, and a vibration preventing portion for maintaining the pendulum movement of the weight means quickly in a stable vertical position.

Vertical and horizontal setting can be easily performed using the above-described prior art, but when moving the device to another place or performing a position change, etc., it is provided in the horizontal and vertical line indicators according to the prior art. As the weight is added to the pendulum movement, the impact with the internal configuration cannot be avoided, so it is necessary to be careful in use and shorten the service life due to the occurrence of component breakage due to the impact of internal components, etc. There is a problem that an increase in cost and the like is inevitable.

In addition, in the case of using the horizontal and vertical line indicator according to the above-mentioned known technology, it is possible to set the horizontal and vertical lines in the state of contact with the ground using trivets, etc. Or if there is a need to set the horizontal and vertical lines, etc. at a certain height of the building there is a problem that the work becomes difficult.

In addition, when the horizontal and vertical line indicator according to the known technology is used in combination with the trivet, when the horizontal and vertical lines are set in a long distance, the movement range of the horizontal and vertical lines displayed on the object is extensive, even when the fine movement is made, and thus fine adjustment is inevitable. There is a problem.

Therefore, the present invention has been made to solve the above problems, and when using a laser horizontal vertical device, etc. in the construction of the building, the control means for controlling the free movement of the weight provided in the laser horizontal vertical device laser horizontal vertical It is provided to easily operate on one side of the device, to facilitate the use of the operator as well as to control the impact between the internal parts by preventing the free movement of the weight by the control means during movement.

In addition, the present invention, when the horizontal and vertical setting work by fixed mounting the above-described laser horizontal vertical device by the trivet to enable the adjustment by the fine adjustment width so that the horizontal and vertical setting work by the adjustment work in the remote Has a different purpose.

In addition, the present invention, when the horizontal and vertical line setting work in the high altitude field, such as the outer wall of the building, such that the trivet can be attached to the steel beam of the outer wall of the building to enable the horizontal and vertical line setting work at a high position There is another purpose.

Therefore, as a means for solving the technical problem of the present invention,

In the laser horizontal vertical device 100 irradiated by the horizontal, vertical laser irradiation unit by the weight provided therein,

The weight interlocked with the horizontal and vertical laser irradiation unit forms a conical shape in which the outer diameter of the upper outer circumferential surface is relatively larger than the outer diameter of the lower outer circumferential surface, and one end side of the “O” ring portion in close contact with the upper outer circumferential surface of the weight. It is characterized in that the position fixing switch is connected to the "O" ring up and down position is provided on one side of the housing.

In addition, the present invention in the trivet device 200 is coupled to the bottom of the laser horizontal vertical device,

A shaft is provided on the upper surface of the body, each of which is provided with a leg on the bottom side, and the cover is provided with a rotating tool fitted on the axis and a fixing member coupled to the lower end of the laser horizontal vertical device. A coupling groove for fitting the fine adjustment plate to one side of the rotation hole is formed, and characterized in that the fine adjustment sphere for adjusting the fine adjustment plate to the left and right is provided to one side of the body.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention discloses a laser horizontal vertical device as shown in the accompanying drawings, and simultaneously discloses a trivet device detachable from the laser horizontal vertical device.

The laser horizontal vertical device 100 is a device that uses a laser to set the vertical and horizontal lines when building, building as described above.

1 to 3, the laser horizontal vertical device 100, the horizontal laser irradiation unit 110 and the vertical laser irradiation unit 120 is provided on the front side side is configured to be integrally interlocked.

On the other hand, the back side of the vertical laser irradiation unit 120 is interlocked with the movement of the horizontal, vertical laser irradiation unit (110, 120) and is provided with a weight (130) to be always positioned in a vertical line in the direction of gravity.

As described above, the weight 130 has a characteristic of always being positioned in a vertical line in the gravity direction, and because of the weight, the vertical and horizontal laser irradiation units 110 and 120 also try to be positioned in a vertical line. It is possible to set the vertical and horizontal lines.

By using the weight 130, the horizontal and vertical lines at the work site are set and displayed by using a laser. In the case of changing or moving the position after use, the free movement of the weight 130 is performed. You need to control it.

That is, in the present invention to control the free movement of the weight 130 is provided with a position fixing switch 140 to one side of the housing 101 constituting the laser horizontal vertical device 100, the position fixing switch 140 It is provided with an "O" ring portion 141 that is interlocked with, the weight (130) is set to be positioned inside the "O" ring portion 141.

The weight 130 is located in the "O" ring portion 141 as shown in the figure to form a circular shape of the same diameter from the upper side to the proper position, and to be made in a conical shape on the lowermost side that follows. desirable.

That is, the upper outer circumferential diameter is in close contact with the inner circumferential surface of the "O" ring portion 141 to move up in accordance with the operation of the position fixing switch 140, the weight on the inner circumferential surface side of the "O" ring portion 141 The upper outer circumferential surface of the 130 is in close contact with each other so as to control the left and right movement of the weight 130, when moving or carrying the laser horizontal vertical device 100, close to the weight 130 Interference and collision with various parts are prevented in advance.

Reference numeral 150 denotes a rear cover to cover the rear side of the laser horizontal vertical apparatus.

The trivet 200 is screwed with the lower end side of the above-described laser horizontal vertical device 100 to be in contact with the ground and fixed.

Such trivet 200 is as shown in the accompanying drawings, such as Figures 4 to 6, the lower portion of the body portion 210 is provided with legs 220, respectively, the upper side of the body portion 210 the laser Coupling portion 230 is provided to be coupled to the bottom of the horizontal vertical device 100, the side fixing portion 240 is configured to be fixed to one side of the body portion 210 is configured, the body portion Fine adjustment unit 250 is provided to be able to finely adjust the coupling unit 230 to the bottom side of the (210).

Each of the points forming the lower triangle of the body portion 210 is provided with a leg portion 220, respectively.

The leg portion 220 is provided at both ends of the body portion 210 forming a triangular shape and the rear end side of each of the ends forming a triangular point, respectively, the lower end of the body portion 210 Screw rod 223 is provided integrally with the height adjustment leg 222 is directly coupled to the screw, the rotational leg 221 is located on the lower end side of the body portion 210 to be spaced apart from the upper end side and open to both sides The screw rod 223 is connected to the shaft 211 and is rotatable, and the screw rod 223 and the height adjusting leg 222 are screwed to the other end of the pivot leg 221.

By using the height adjustment legs 222, the horizontal maintenance of the triangular point of the body portion 210, as well as the horizontal presence of the laser light emitted from the laser horizontal vertical device 100 is fixed to the upper surface easily It could be confirmed.

In addition, as described above, the rear end of the body portion 210 is configured to be rotatable by the rotation leg 221 on the leg portion 220, so that when not in use, the rotation leg 221 toward the body portion 210 side. It can be configured to be folded by rotating to provide ease of transport.

On the other hand, the upper surface of any one side of the body portion 210 is provided with a horizontal liquid crystal system 212 so that it is possible to check the overall level of the trivet 200, the height adjustment leg of the leg portion 220 ( It is desirable to be able to perform the leveling operation using 222).

In the embodiment of the present invention, the horizontal liquid crystal system 212 is positioned on the upper surface of the most leg side 220 of the body portion 210.

On the other hand, the upper surface side of the body portion 210 is provided with a coupling portion 230 for coupling with the bottom surface side of the laser horizontal vertical device 100 in the present invention.

The coupling portion 230, as shown in the accompanying drawings, the fastener 231a is formed in the cover body 231 and the cover body 231 is provided to protrude to the upper surface, but is cut in the longitudinal direction to its outer peripheral surface A hollow rotating hole 232 having a coupling groove 232a constituting the recess 232 is provided, and the fine adjustment plate 233 is inserted into the coupling groove 232a.

The fine adjustment plate 233 as described above is moved according to the adjustment of the fine adjustment unit 250 which will be described later, and as a result, the cover body incorporating the rotating hole 232 and the rotating hole 232 into which the fine adjusting plate 233 is inserted. 231 is rotated to the left and right, so that the laser horizontal vertical device 100 can be finely adjusted left and right.

On the other hand, the upper surface side of the body portion 210 for coupling with the coupling portion 230 is provided with a shaft portion 213 to be inserted into the lower end of the rotating hole 232, the laser horizontal vertical device 100 To serve as a pivotal axis of

In addition, the trivet 200 is configured to form a side fixing part 240 to the rear side of the body portion 210, the side fixing part 240, as can be seen in the accompanying drawings, the trivet 200 and the laser on the ground Rather than using the horizontal vertical device 100, it is provided in a configuration for enabling useful use if you want to use attached to the side of the structure, such as buildings or other steel beams.

That is, the side fixing part 240 has a housing 241 that can be inserted into the rear side of the body portion 210 and has a magnet body 242 to be inserted into the housing 241, and the housing 241. ) And a bolt 243 for fixing the magnet body 242.

Here, it is preferable to include the insertion recess 214 to insert the housing 241 to the rear side of the body portion 210.

When the side horizontal fixing unit 240 configured as described above is intended to use the above-described laser horizontal vertical device 100 at any position such as an H-beam or other building structure, the magnet described above in the steel structure of the building structure. The horizontal line by laser beam irradiation using the laser horizontal vertical device 100 fixed to the upper surface side of the trivet 200 with the sieve 242 attached to the trivet 200 attached to a building structure such as a steel structure. Vertical lines can be set and displayed.

In addition, it is preferable to form the embossed portion 242a with the surface layer of the magnet body 242 attached to the steel structure or the like so as to prevent slipping.

On the other hand, the laser horizontal vertical device 100 as described above to enable fine adjustment by the left and right fine rotation, for such a fine adjustment of the coupling portion 230 to the center bottom side of the trivet (200) A fine adjustment unit 250 is configured to enable fine rotation adjustment.

In order to configure such a fine adjustment unit 250, the housing 215 is integrally provided on the lower side of the body portion 210, so that the components of the fine adjustment unit 250, etc. are accommodated, one side of the housing 215 One side is fixed by the support 251 is screwed, provided with a spring 252 supported by the support 251 and in contact with the other side of the spring 252, the lower end of the fine adjustment plate 233 A bullet strip 253 having a close contact with the side is provided.

Therefore, since the bullet strip 253 is always supported by the spring 252, the force pushing the fine adjustment plate 233 in the opposite direction is applied.

On the other hand, a fastener 255 that is screwed with the housing 215 is provided in a direction opposite to the side of the bullet zone 253, that is, the housing 215, and the fastener 255 is provided. The fine adjustment tool 254 is inserted into the side and screwed is provided, and the pushing hole 254a for pushing the fine adjustment plate 233 toward the side of the fine adjustment tool 254 is integrally formed.

Here, a male screw is formed on an outer circumferential surface of the pushing hole 254a, and the screw is fastened to the inside of the fastener 255. When the fine adjustment tool 250 is rotated, a pushing hole 254a extending integrally therewith is provided. The lower end of the fine adjustment plate 233 is inserted into and fixed to the coupling groove 232a of the rotation hole 232 is pushed to the other side of the fine adjustment plate 233 while pushing the pushing force of the spring 252, the fine adjustment plate The rotating hole 232 fixing 233 is rotated with a fine adjustment width, and at the same time, the cover body 232 which closely covers the rotating hole 232 is rotated, and eventually, the upper surface side of the cover body 232. It is possible to finely rotate the laser horizontal vertical device 100 coupled to the fixture 231a of the.

By using the present invention having the above-described configuration, if you want to set the horizontal line and vertical line using the laser at the construction site, etc., the operator is the bottom cover side of the laser horizontal vertical device 100 and the upper cover body of the trivet 200 ( After screwing the fastener 231a of 231, the trivet 200 is fixed to the ground or the steel structure using the trivet 200.

Here, as described above, in the state where the trivet 200 is positioned on the ground, when adjusting the height, the screw rod 223 is fastened to the body portion 210 or the rotation leg 221 of the trivet 200. Rotating the leg 220 to move up and down along the) to adjust the height can be set horizontally on the ground using a horizontal liquid crystal system 212 provided on one side of the body portion (210).

This leveling work depends on the operator's perspective.

On the other hand, when the trivet 200 is fixed to the position that cannot be fixed on the ground, that is, the side of the steel structure, etc., the magnet body 242 of the side fixing part 240 provided to the rear side of the body portion 210 ) Can be attached to the side of the steel structure (see Fig. 7).

At this time, in order to enhance the contact force with the steel structure, as described above, it is preferable to have an embossed portion 242a as the surface layer of the magnet body 242, so that the trivet 200 slips during the horizontal and vertical line operation. The work error due to the phenomenon can be prevented.

As described above, the trivet 200 is fixed to a proper position such as the ground or the steel structure, and the horizontal and vertical lines of the target can be set while the power is turned on to the laser horizontal vertical device 100. It becomes possible.

In addition, when it is necessary to finely adjust the position change of the horizontal line and the vertical line at the target point, the operator can finely adjust the laser horizontal vertical device 100 left and right by adjusting the fine adjustment unit 250 of the trivet 200. have.

That is, as described above, when the fine adjustment tool 250 of the fine adjustment unit 250 is rotated forward, the end of the pushing hole 254a extending to one end of the fine adjustment device 250 is the cover body 231. ) Pushed into the lower end side of the fine adjustment plate 233 inserted into the coupling groove 232a formed at one side of the pivoting hole 232 to be interlocked, thereby supporting the other end side of the fine adjustment plate 233. Pushing the bullet strip 253, overcoming the grip force of the spring 252 holding the bullet strip 253, the turning hole 232 and the cover 231 is the fine adjustment sphere 250 In accordance with the forward rotation of the phenomenon occurs that rotates finely in the forward direction.

Therefore, as the cover body 231 rotates, the laser horizontal vertical device 100 which is fastened to the fixture 231a formed on the upper surface of the cover body 231 is minutely rotated in a forward direction, so that the horizontal laser irradiation unit 110 and the vertical body are rotated. The laser light emitted from the laser irradiation unit 120 is moved in the forward direction from the target to enable the operator to achieve the horizontal and vertical line setting operation at the desired point.

On the other hand, when the fine adjustment mechanism 250 is reversely rotated in the opposite direction, the resilient force of the spring 252 is increased by pushing the fine adjustment plate 233 by the opposite action as described above, so that the rotation hole 232 ) And the cover body 231 is rotated in the reverse direction of the opposite direction as described above, the laser horizontal vertical device 100 is also finely rotated in the reverse direction to perform the horizontal and vertical line setting work to the point desired by the operator It can be done.

As such, when the horizontal and vertical line setting work is completed or the position is to be changed to another position, to avoid the interference and collision between internal parts that are close to the weight 130 of the laser horizontal vertical device 100. The worker moves up and down the position fixing switch 140 provided on the side of the housing 101 of the laser horizontal vertical device 100.

As such, when the position fixing switch 140 is moved upward, the “O” ring portion 141 is raised in conjunction with the upper outer peripheral surface of the weight 130 and the inner circumferential surface of the “O” ring portion 141. The close contact with the weight 130 is fixed.

Therefore, the weight 130 is changed or moved in a state that prevents the shaking phenomenon by the "O" ring portion 141 when the operator changes or moves the laser horizontal vertical device 100 to another position. When this is possible, and the setting position and the movement is completed to perform the setting operation of the horizontal line and the vertical line again, the position fixing switch 140 is transferred to the lower side to move the "O" ring portion 141 to the lower side. When transferred, the weight 130 is in a state capable of free movement, according to the vertical linear position movement in the direction of gravity by the weight of the weight 130, the horizontal laser interlocked with the weight 130 By the laser irradiated from the irradiation unit 110 and the vertical laser irradiation unit 120 it is possible to perform the correct setting of the horizontal line and vertical line on the target side.

Therefore, according to the present invention, when using a laser horizontal vertical device, etc. in the construction of the building, by controlling the free movement of the weight provided in the laser horizontal vertical device to prevent the impact between the weight and internal parts during the movement of the laser horizontal vertical device In addition, the effect of preventing damage to the product and extending the service life can be expected.

In addition, according to the present invention, when the horizontal and vertical setting work is fixed by mounting the laser horizontal vertical device by the trivet in the present invention for supporting the ground and the like is combined with the laser horizontal vertical device adjustment by the fine adjustment width It is possible to expect the effect that the horizontal and vertical setting work by the adjustment work on the remote can be made easy.

Further, according to the present invention, when the horizontal and vertical line setting work in the high altitude site, such as the outer wall of the building, the trivet can be attached to the steel beam of the outer wall of the building to enable the horizontal and vertical line setting work at a high position Therefore, when setting the horizontal and vertical lines, the work can be performed regardless of the location, it can be expected to improve the efficiency of the work.

Claims (8)

In the laser horizontal vertical device 100 irradiated by the horizontal, vertical laser irradiation unit by the weight provided therein, The weight 130, which is interlocked with the horizontal and vertical laser irradiation units 110 and 120, has a conical shape in which the outer diameter of the upper outer circumferential surface is formed relatively larger than the outer diameter of the lower outer circumferential surface, and is close to the upper outer circumferential surface of the weight 130. A position fixing switch 140 connected to one end side of the “O” ring portion 141 which is in contact with or short-circuited to position the “O” ring portion 141 up and down, is provided on one side of the housing 101. Laser horizontal vertical device characterized in that the configuration. A leg portion 220 is provided at the lower side of the body portion 210, and a coupling portion 230 is coupled to an upper surface of the body portion 210 to be coupled to the bottom surface of the laser horizontal vertical apparatus 100 of claim 1. And a side fixing part 240 configured to be capable of side fixing to one side of the body part 210, and finely adjusting the coupling part 230 to the left and right sides of the body part 210. Trivet device coupled to the laser horizontal vertical device, characterized in that the fine adjustment unit 250 is provided. The method of claim 2, The leg portion 220 is provided at both ends of the body portion 210 forming a triangular shape and the rear end side of each of the ends forming a triangular point, respectively, the lower end of the body portion 210 Screw rod 223 is provided integrally with the height adjustment leg 222 is directly coupled to the screw, the rotational leg 221 is located on the lower end side of the body portion 210 to be spaced apart from the upper end side and open to both sides It is connected to the shaft 211 and is rotatable, and includes the screw rod 223 and the height adjustment leg 222 is screwed to the other side of the rotating leg 221 and the other end of the screw rod 223 is fastened The trivet combined with a laser horizontal vertical device. The method of claim 2, Trivet device coupled to the laser horizontal vertical device comprising a horizontal liquid crystal system (212) is provided on any one upper surface of the body portion (210). The method of claim 2, The coupling portion 230, as shown in the accompanying drawings, the fastener 231a is formed in the cover body 231 and the cover body 231 is provided to protrude to the upper surface, but is cut in the longitudinal direction to its outer peripheral surface A hollow rotating sphere 232 having a coupling groove 232a constituting the groove is provided, and the fine adjustment plate 233 is inserted into the coupling groove 232a. The method of claim 2, The side fixing part 240 has a housing 241 that can be inserted into and fixed to the rear side of the body portion 210 and has a magnet body 242 for insertion into the housing 241, the housing 241, and a magnet. Trivet device coupled with a laser horizontal vertical device comprising a bolt (243) for fixing the sieve (242). The method of claim 6, Trivet device coupled with a laser horizontal vertical device comprising forming an embossed portion (242a) with the surface layer of the magnet body (242). The method of claim 2, The fine adjustment unit 250 is fixed to one side by a support 251 screwed to one side of the housing 215 is provided as a lower side of the body portion 210, the spring supported by the support 251 It is provided with a 252 and the tangerine 253 having a close contact with the lower end side of the fine adjustment plate 233 while contacting the other side of the spring 252, and is screwed to the other side of the housing 215 A fastener 255 is provided, and a pusher for pushing the fine adjustment plate 233 toward the side of the fastener 255 is provided with a fine adjustment tool 254, which is screwed to the side of the fine adjustment tool 254. Trivet device coupled with a laser horizontal vertical device comprising a 254a integrally configured.

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