JP2530013Y2 - Rod measuring device for inspection of concrete casting surface - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod measuring device for inspecting whether or not a concrete casting surface matches a set surface.

[0002]

2. Description of the Related Art For example, in the case of concrete finishing of a floor surface, conventionally, after concrete is poured, an operator stands at a required place and pushes up a measuring rod before hardening, and another worker sets the measuring rod at a level. The height of the mark was measured, and the work of scraping the excessively high concrete casting surface to the height of the set surface was repeated to form a horizontal floor surface.

[0003] The concrete floor surface before the inspection is either as set or higher than the set surface, and it is almost impossible to be lower than the set surface. The work of marking each time was troublesome, and was completed within a limited time before casting and before hardening, after which necessary correction work had to be performed, which required skill and timing.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and the problem is to easily and quickly determine whether or not the concrete casting surface is at the height as set. The purpose of the present invention is to make it easy to mark how much should be cut and inspected in order to match the set surface.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a main body 1 having a tubular structure, which is used vertically, and is provided at a lower end portion of the main body so as to be rotatable around the axis of the pipe. contacting the concrete設面uncured by rotation
In order to indicate the height of the set surface by excavating the horizontal excavation surface S, a lower surface 10 perpendicular to the rotation axis provided on the main body 1 is provided.
Wing-shaped rotating marker 2 , and a drive for driving the marker 2
It has a switch 22 for the moving means 13 and a lower end 3 which can pierce the uncured concrete casting surface, and this lower end 3 is inserted into the main body so as to be able to protrude from the marker 2,
The depth rod 5 supported by the main body 1 in a state where the main body 1 is protruded by an arbitrary length by the protruding amount defining means 4 and the height of the main body 1 by the level L so that the excavation surface by the rotary marker 2 matches the height of the set surface. Has a target 6 for blackout provided at the upper part of the main body in order to make the constant, a light receiver 19 for receiving a light beam emitted from the level L as the target 6, and an upward direction indicating a height difference with respect to a set height, Display unit 2 consisting of a downward mark
A means of providing 0 is adopted.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 shows the entirety of the device A of the present invention together with the state of use. In the figure, F is an uncured floor surface which is a concrete casting surface, and L is a level for keeping the height of the device A of the present invention constant. For example, a measuring beam B using a laser beam is emitted to the device body.

The main body 1 is used vertically by the user P while supporting it by hand and has a straight tubular structure. The main body 1 may be easy to handle with the same size as the rod used for surveying, with a conventional straight bar painted red and white.

A rotation marker 2 is provided at the lower end of the main body 1 so as to be rotatable around the axis of the tubular structure. The marker 2 is a tube shaft 7
The pipe shaft 7 is fitted into the main body, and the lower end of the main body and a bearing 8 attached to the upper part thereof are attached to the lower end of the main body.
9 rotatably supported by the main body 1.

The rotary marker 2 comprises one or more radial blades, and the blades have a lower surface 10 provided at right angles to the rotation axis so that a horizontal excavation surface S is obtained by rotation (FIG. 2). reference).

The rotary marker 2 is rotated by a motor of a driving means 13 having a gear 12 which meshes with a gear 11 provided above the pipe shaft 7. Reference numeral 14 denotes a mounting base on which the motor is mounted on the main body 1, and 15 denotes a gear box, which has a window 16 for gear engagement.

[0013] The probe rod 5 pierces the lower end portion 3 into the uncured concrete casting surface and protrudes against the base U (see FIG. 4). Are provided so as to protrude from the marker 2 (FIGS. 2 and 3).

The illustrated depth-finding rod 5 is inserted into the tube shaft 7 so as to be vertically movable, and is moved up and down on the axis by a steady rest 17 provided on the main body 1 or the tube shaft 7. Supported.

The tracing rod 5 can be moved up and down relatively with respect to the main body 1 whose height is kept constant.
A projecting amount defining means 4 is provided between the main body 1 and the main body 1 so that the lower end 3 is supported by the main body 1 at a projecting position where the lower end 3 abuts on the base U.

The exemplary projecting amount defining means 4 includes a set screw 4a attached to a side surface of the main body above a long hole 18 opened along the longitudinal direction of the main body, and an integral part thereof with the deep rod 5 from the long hole 18. And a stop piece 4b which is provided to be movable up and down and is fixed at a predetermined height by a set screw 4a. Reference numeral 4c denotes a female screw for screwing the set screw 4a, which is formed on the mounting member 4b mounted on the main body 1.

The amount of protrusion can be adjusted within the range of the length of the long hole 18 in which the stop piece 4b can move up and down, but it is sufficient if the length of the long hole 18 is 30 cm. Further, the protrusion amount defining means 4 does not have to depend on the set screw 4a and the stop piece 4b. For example, a method in which a screw is provided on the stop piece itself and fastened to the side surface of the main body with a nut, a method in which the set screw in FIG. 3 is replaced with a piston sealing mechanism, or other known means can be adopted.

A target 6 for marking out is provided on the upper part of the main body. In the case of the embodiment, since a laser beam is used for the level L measuring means, a light receiver 19 having a laser beam receiving section is also used as the target 6. Then, the height difference with respect to the set height is displayed on the display unit 20 including upward and downward arrows (FIG. 1). The receiver 19 is a commercially available main unit 1
It may be attached to.

In each of the figures, reference numeral 21 denotes a power supply device such as the driving means 13 and 22 denotes the same switch.
Can be rotated. Reference numeral 23 denotes a bubble tube for confirming the verticality of the main body 1.

In the thus constructed apparatus A of the present invention, a measuring line is set, for example, in a vertical and horizontal lattice on the concrete floor F in an uncured state after casting, and the intersection of the measuring lines is used as an inspection point to form the lower end portion of the deep rod 5. 3 is pushed up against the concrete floor F, and the main body is relatively moved up and down while confirming that the lower end portion 3 is in contact with the groundwork U. The projecting position when the main body 1 is at a constant height by the leveler L Then, the search rod 5 is fixed by the projection amount defining means 4 and the switch 22 is pressed to rotate the marker 2.

Then, the uncured concrete can be scraped off by the rotating marker 2 and the cut-out surface S
Becomes a horizontal plane and coincides with the setting surface of the floor. Therefore, the entire floor surface F is corrected to the same height as the set surface by shaving the periphery of the excavated surface S that is recessed to the height of the set surface. The test points 2 4 scraped in Figure 1 shows a circular. It is more efficient to separately perform the operation of forming the excavated surface with the rotary marker 2 and the operation of shaving the periphery thereof.

[0020]

[Effects of the Invention] Since the present invention is constructed and operates as described above, the probe 5 is pushed to the inspection point and the target 6
By simply setting the height of the main body 1 to a constant height in accordance with the mark of the display unit 20, the difference between the height of the inspection point and the height of the setting surface can be easily and accurately known, and the switch 2
2 is operated to rotate the rotary marker 2 can be immediately matched to the height of the setting plane modifies the height of the inspection points by Rukoto form a horizontal drilling surface S of Ri Kezurito the concrete test point Therefore, the workability is remarkably good, and there is an effect that the concrete placing surface can be quickly modified without requiring skill.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention device together with a use state.

FIG. 2 is an enlarged side view showing a lower part of the main body in a partially broken manner.

FIG. 3 is an enlarged side view showing a middle part of the main body partially broken away.

FIG. 4 is an explanatory diagram of a use state.

Claims (4)

(57) [Scope of request for utility model registration] 1. The concrete casting surface coincides with a setting surface.
A rod measuring device for inspecting whether or not there is a non-hardened concrete strut which is provided at a lower end of a main body 1 which is vertically used and has a tubular structure and is rotatable around the axis of the pipe. In order to indicate the height of the set surface by contacting the installation surface and digging a horizontal excavation surface S by rotation, a blade-like shape having a lower surface 10 perpendicular to a rotation axis provided on the main body 1 is shown . A rotating marker 2 and a driving means 13 for driving the marker 2
It has a switch 22 and a lower end 3 that can pierce the uncured concrete casting surface.
The excavation surface formed by the rotary marker 2 and the digging surface 5 supported by the main body 1 while being inserted into the main body so as to be able to protrude and protruding by an arbitrary length by the protruding amount defining means 4 coincide with the height of the setting surface. As described above, the target 6 for marking is provided on the upper part of the main body in order to make the height of the main body 1 constant according to the level L, and the light receiver 19 for receiving the light beam emitted from the level L as the target 6 And a display unit 20 comprising upward and downward marks indicating a height difference with respect to a set height. 2. A protruding amount defining means 4 is provided with a set screw 4a provided on an upper portion of an elongated hole 18 opened along the longitudinal direction of the main body, and can be vertically moved integrally with the detecting hole 5 from the elongated hole 18. The rod measuring device for inspecting a concrete placing surface according to claim 1, further comprising a stop piece (4b) provided and stopped at a predetermined height by said set screw (4a). 3. A motor for driving the rotation marker 2 is provided on the main body 1.
The rod measuring device for inspecting a concrete casting surface according to claim 1, wherein the rod measuring device is attached to a surface. 4. The rod measuring device for inspecting a concrete casting surface according to claim 1, wherein the main body 1 has a bubble tube 23 for correcting its inclination.