JPH0866918A - Boring device - Google Patents

Abstract

PURPOSE: To realize a quick attachment and detachment of a working section to and from a body to be bored and, at the same time, prevent the occurrence of the falling accident of the working section in boring the body, the surface of which is formed perpendicularly. CONSTITUTION: An on-off valve 21 is interposed between a suction body 2 and a vacuum hose 4. By opening the on-off valve 21 under the condition that suction body 2 is abutted against the surface of a concrete wall so as to allow the suction body 2 to stick to the surface of the concrete wall 13 by the sucking action of a vacuum pump 5 in order to install a working section 11 onto the concrete wall 13. Further, after a hole is made in the concrete wall 13, by releasing the suction state of the suction body 2 through closing of the on-off valve 21, the working section 11 is separated from the concrete wall 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching device for making a hole in an object to be drilled, and more particularly to a punching device suitable for making a hole in a concrete structure.

[0002]

2. Description of the Related Art FIG. 8 is a front view showing a conventional example of a punching device,
FIG. 9 is a diagram illustrating a process of mounting an operating unit provided in the punching device of FIG. 8 on a concrete wall.

The conventional punching device shown in FIG.
For example, an adsorption fixing body 2 that can be adsorbed on the surface of the concrete floor 1, an adsorption packing 2a that is mounted on the entire lower surface of the adsorption fixing body 2, a surface of the concrete floor 1, and an adsorption fixing body 2
A vacuum pump 5 for sucking air between the vacuum suction port 3 and a vacuum hose 4, a base plate 6a movably mounted on the suction fixing body 2, and a base plate 6
A pillar 6 fixed on a, standing upright in the direction perpendicular to the surface of the object to be drilled, that is, the concrete floor 1, a movable support 7 movably provided along the pillar 6, and this movable support. It is composed of a handle 8 for moving 7 and a diamond core drill 9 attached to the above-mentioned movable support 7. The suction fixed body 2, the suction packing 2a, the column 6, the base plate 6a, the movable support 7, the handle 8 and the diamond core drill 9 constitute a detachable actuating portion 11 on the surface of the concrete floor 1 or the like. There is. Further, a blade portion 9b is attached to the diamond core drill 9 via a spindle 9a, the blade portion 9b faces the perforated portion 1a of the concrete floor 1, and the tip of the blade portion 9b is formed by the boring operation. An annular water receiver 12 for receiving cooling water is disposed around the perforated portion 1a because it generates heat.

In this conventional punching device, the adsorption fixing body 2 is arranged on the surface of the concrete floor 1, and the vacuum pump 5 is operated to suck the air between the surface of the concrete floor 1 and the adsorption fixing body 2. As a result, the adsorption fixing body 2 is adsorbed on the surface of the concrete floor 1. As a result, the working portion 11 is mounted on the surface of the concrete floor 1, and the support pillars 6 of the working portion 11 are fixed via the suction fixing body 2 and the base plate 6a. Next, the water receiver 12 is arranged at a predetermined position in the vicinity of the operating portion 11a.
Concrete floor 1 by pressing member not shown at one end of 2
The cooling water is supplied into the water receiving body 12 in a state in which the other end of the water receiving body 12 and the surface of the concrete floor 1 are sealed with a rubber member (not shown) while being pressed toward. Then, the operator rotates the handle 8 to move the movable support 7 toward the surface of the concrete floor 1 along the columns 6, and presses the blade portion 9b of the diamond core drill 9 against the concrete floor 1. Then, a start switch (not shown) is turned on to rotate the blade portion 9b to open a hole in the perforated portion 1a of the concrete floor 1.

Further, as shown in FIG. 9, when a hole is made in the concrete wall 13 whose surface is formed vertically by the above boring device, first the tip of the vacuum hose 4 is pulled out from the vacuum port 3 of the suction fixing body 2. Remove and place the vacuum pump 5 on the concrete floor 1. Next, the operator uses one hand to support the strut 6
While positioning the operating part 11 while gripping, the suction fixing body 2 is abutted against the surface of the concrete wall 13, and the vacuum hose 4 is gripped by the other hand and connected to the vacuum outlet 3 of the suction fixing body 2. The vacuum pump 5 sucks air between the surface of the concrete wall 13 and the adsorption fixing body 2. As a result, since the adsorption fixing body 2 is adsorbed on the surface of the concrete wall 13, the operating portion 11 is mounted on the surface of the concrete wall 13 via the adsorption fixing body 2.

Next, the water receiver 12 is arranged at a predetermined position on the surface of the concrete wall 13, and one end of the water receiver 12 is pressed toward the concrete wall 13 by a pressing member (not shown), and Cooling water is supplied into the water receiver 12 in a state where the other end and the surface of the concrete wall 13 are sealed with a rubber member (not shown). Then, the operator rotates the handle 8 to move the movable support 7 toward the surface of the concrete wall 13 along the pillar 6, and presses the blade portion 9b of the diamond core drill 9 against the concrete wall 13. Next, a hole is made in the concrete wall 13 by turning on a start switch (not shown) and rotating the blade 9b.

After making a hole in the concrete wall 13 in this manner, the water receiver 12 is removed from the surface of the concrete wall 13, and then the operator holds the support column 6 with one hand so that the operating portion 11 is removed. By removing the tip of the vacuum hose 4 from the vacuum outlet 3 of the suction fixing body 2 with the other hand while supporting, the state of sucking air between the surface of the concrete wall 13 and the suction fixing body 2 is released, and as a result, Since the operating part 11 is detached from the concrete wall 13, the operating part 11 is lowered onto the concrete floor 1.

[0008]

By the way, in the above-described conventional punching device, when the operator drills a hole in the concrete wall 13 whose surface is formed vertically, the operator holds the suction fixing body 2, the support pillar 6, The positioning work of the diamond core drill 9 is difficult because it is necessary to carry out the positioning work while receiving a considerable weight of the movable support 7 and the diamond core drill 9, and to hold the vacuum hose 4 by the other hand to carry out the connection work. There is a problem that not only the work efficiency is inferior, but also the worker is easily tired. Also,
When the adsorption fixing body 2 is adsorbed on the concrete wall 13 or when the adsorption fixing body 2 is detached from the concrete wall 13, the operator mistakenly operates because the operating section 11 is handled for a relatively long time with one hand. There is a concern that the operating portion 11 may drop due to the dropping of the portion 11 or a connection error of the vacuum hose 4, and there has been a demand for improvement in work safety.

The present invention has been made in view of the actual situation in the prior art as described above, and an object thereof is to, when a hole is formed in a body to be perforated whose surface is formed vertically, of an operating portion to the body to be perforated. An object of the present invention is to provide a punching device that can be quickly attached and detached and can prevent the accidental fall of the operating portion.

[0010]

In order to achieve this object, the present invention is directed to an adsorption fixing body capable of adsorbing to the surface of an object to be perforated, a column standing upright on the adsorption fixing body, and along this column. An operation part including a diamond core drill that is movably provided; and a vacuum pump that sucks air between the adsorption fixing body and the surface of the object to be drilled through a vacuum hose, An on-off valve that opens and closes the air passage by a manual operation in a drilling device that punches a hole in the body to be drilled with the diamond core drill in a state where the working portion is attached to the body to be drilled by adsorption to the surface of the body to be drilled. Is provided.

[0011]

Since the present invention is configured as described above, when mounting the operating portion on the body to be perforated whose surface is formed vertically, first the vacuum pump is arranged at a predetermined position and suction fixed to this vacuum pump. The body is connected via a vacuum hose and an on-off valve, and the on-off valve is closed. Next, the operator performs positioning while supporting the operating part with one hand, and the other hand manually operates the above-mentioned on-off valve to open the air passage, so that the vacuum pump sucks through this on-off valve. Air between the fixed body and the surface of the perforated body is sucked, and as a result, the adsorption fixed body is adsorbed on the surface of the perforated body. Be attached to. Then, after making a hole in the object to be perforated, the operator manually operates the on-off valve with the other hand while supporting the operating part with one hand to close the above-mentioned air passage, and The state of sucking air between the surface of the object to be perforated is released, and as a result, the operating portion is separated from the surface of the object to be perforated, so that the operating portion is lowered to a predetermined position. As a result, the actuating part is attached to and detached from the body to be drilled whose surface is formed vertically.Therefore, when handling the actuating part with one hand, it is not necessary to connect the vacuum hose with the other hand Since the manual operation is sufficient, the work of attaching and detaching the operating portion can be performed quickly.

Further, since it is possible to shorten the time for handling the operating portion with one hand and avoid the connection mistake of the vacuum hose, it is possible to suppress the accidental fall of the operating portion.
Work safety can be improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the punching device of the present invention will be described below with reference to the drawings. 1 is a front view showing an embodiment of the punching device of the present invention, FIG. 2 is an enlarged view of a portion of a control valve provided in the punching device of FIG. 1, and FIG. 3 is a portion of the control valve of FIG. FIG. 4 is an enlarged side view, FIG. 4 is a cross-sectional view of the on-off valve of FIG.
2 is a sectional view showing a state in which the control valve of FIG. 2 is closed, and FIG.
FIG. 7 is a diagram for explaining a step of mounting an operating part provided in the punching device on a concrete wall, and FIG. 7 is a diagram for explaining a step of making a hole in the concrete wall by the punching device of FIG. In addition, in FIGS. 1, 6, and 7, the same components as those shown in FIGS. 8 and 9 described above are denoted by the same reference numerals. That is, 1 is a concrete floor, 2 is a suction fixed body, 2a is a suction packing, 3 is a vacuum outlet, 4 is a vacuum hose, 5 is a vacuum pump, 6 is a support, 6a is a base plate, 7 is a movable support,
Reference numeral 8 is a handle, 9 is a diamond core drill, 9a is a spindle, 9b is a blade portion, 11 is an operating portion, 12 is a water receiver, and 13 is a concrete wall.

In the punching device of the present embodiment shown in FIG. 1, compared with the conventional example shown in FIGS. 8 and 9 described above, between the vacuum suction port 3 of the suction fixing body 2 and one end of the vacuum hose 4, An on-off valve 21 that opens and closes by manual operation is provided. As shown in FIG. 2, the opening / closing valve 21 includes a casing 22, a rotary valve 23 housed in the casing 22, and an operating lever 24 provided outside the casing 22 for rotating the rotary valve 23. It consists of As shown in FIG. 4, the casing 22 has a first passage 22a connected to the vacuum hose 4, a second passage 22b connected to the vacuum outlet 3, and the outside of the casing 22, that is, the atmosphere. A third passage 22c connected to the inside is formed. In addition, as shown in FIG. 4, the rotary valve 23 includes the first passage 22a and the second passage 22b.
A communication passage 23a capable of communicating with each other and a branch passage 23b branching from this passage 23a and connectable to the third passage 22c are formed as shown in FIG.

In this embodiment, when a hole is made in the concrete wall 13 whose surface is formed vertically by the above-mentioned boring device, the vacuum pump 5 is first placed on the concrete floor 1 as shown in FIG. Then, the vacuum pump 5 and the vacuum suction port 3 of the adsorption fixing body 2 are connected to the vacuum hose 4 and the on-off valve 2.
1, and the on-off valve 21 is closed as shown in FIG. Next, the operator performs positioning while supporting the actuating portion 11 by holding the support column 6 with one hand and opens the on-off valve 21 with the other hand. As shown in FIG. 4, when the opening / closing valve 21 is opened, the first passage 22a and the second passage 22b of the casing 22 are connected to each other via the communication passage 23a of the rotary valve 23. Air between the adsorption fixing body 2 and the surface of the concrete wall 13 is sucked by the vacuum pump 5 via 21. As a result, since the adsorption fixing body 2 is adsorbed on the surface of the concrete wall 13, the operating portion 11 is mounted on the surface of the concrete wall 13 via the adsorption fixing body 2. Then, as shown in FIG. 7, when the operator rotates the handle 8 to move the movable support 7 along the support 6 toward the surface of the concrete wall 13, the blade portion 9 b of the diamond core drill 9 causes the concrete 9 to move. Wall 13
Since it is pressed against, the diamond core drill 9 is operated in this state to rotate the blade portion 9b, thereby making a hole in the concrete wall 13.

After making a hole in the concrete wall 13 in this manner, the operator holds the support column 6 with one hand to support the operating portion 11, while the other hand operates the operation lever 24 of the on-off valve 21. The on-off valve 21 is closed by rotating it. By this closing operation of the opening / closing valve 21, as shown in FIG. 5, the first passage 22a of the casing 22 is closed by the rotary valve 23, the suction of air by the vacuum pump 5 is blocked, and the rotary valve 23 is closed. The second passage 2 of the casing 22 via the communication passage 23a and the branch passage 23b.
Since 2b and the third passage 22c are connected to each other, the adsorption fixing body 2 communicates with the atmosphere through the third passage 22c, and the adsorption state of the adsorption fixing body 2 is released. Since the operating part 11 is separated from the surface of the wall 13, the operating part 11 is lowered onto the concrete floor 1.

In the embodiment constructed as described above, since the working portion 11 is attached to and detached from the concrete wall 13 whose surface is formed vertically, when the working portion 11 is handled by one hand, the vacuum hose 4 is handled by the other hand. On-off valve 2 without the work of connecting
Since the manual operation of 1 is sufficient, the work of attaching and detaching the operating portion 11 can be performed quickly. Also, with one hand, the operating part 1
Since the time for handling 1 can be shortened and the connection mistake of the vacuum hose 4 can be avoided, the accidental fall of the operating part 11 can be suppressed, and therefore the work safety can be improved.

[0018]

Since the present invention is constructed as described above, when a hole is formed in a body to be perforated whose surface is formed vertically, the operating portion can be quickly attached to and detached from the body to be perforated. It is possible to suppress the accidental fall of the operating part. Therefore, there is an effect that the safety and work efficiency of the work of making a hole in the body to be drilled can be improved, and the fatigue of the worker can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a punching device of the present invention.

FIG. 2 is an enlarged view showing a portion of a control valve provided in the punching device of FIG.

FIG. 3 is an enlarged side view showing a portion of the control valve of FIG.

FIG. 4 is a sectional view of the on-off valve of FIG.

5 is a cross-sectional view showing a state in which the control valve of FIG. 2 is closed.

FIG. 6 is a diagram illustrating a step of mounting an operating unit included in the punching device of FIG. 1 on a concrete wall.

FIG. 7 is a diagram illustrating a step of making a hole in a concrete wall by the punching device of FIG.

FIG. 8 is a front view showing a conventional example of a punching device.

FIG. 9 is a diagram illustrating a step of mounting an operating unit included in the punching device of FIG. 8 on a concrete wall.

[Explanation of symbols]

 2 Adsorption fixed body 4 Vacuum hose 5 Vacuum pump 6 Strut 9 Diamond core drill 11 Working part 13 Concrete wall (perforated body) 21 Open / close valve 22 Casing 22a First passage 22b Second passage 22c Third passage 23 Rotation valve 23a Communication passage 23b Branch passage 24 Operation lever

Claims (3)

[Claims] 1. An adsorbing fixed body capable of adsorbing to the surface of a body to be drilled, a pillar standing on the adsorbing fixed body, and an operating part including a diamond core drill movably provided along the pillar, and A vacuum pump for sucking air between the adsorption fixed body and the surface of the object to be perforated through a vacuum hose, and the adsorption to the surface of the object to be perforated by the adsorption fixed body to the object to be perforated A drilling device for drilling a hole in the body to be drilled with the diamond core drill in a state in which an operating part is mounted, comprising an opening / closing valve for manually opening / closing the air passage. 2. The punching device according to claim 1, wherein an on-off valve is provided between the tip of the vacuum hose and the suction fixing body. 3. The on-off valve comprises a casing, a rotary valve rotatably housed in the casing, and an operating lever provided outside the casing for rotating the rotary valve. A first passage connected to the vacuum hose, a second passage connected to the adsorption fixing body, and a third passage connected to the outside of the casing.
And a passage for connecting the first passage and the second passage to the rotary valve, and a branch passage branched from the passage and connectable to the third passage. Is provided, and the vacuum hose and the adsorption fixing body are connected to the first passage, the communication passage, and the second passage by opening the opening / closing valve.
The suction fixing body and the outside of the casing are connected via the second passage, the communication passage, the branch passage, and the third passage by closing the opening / closing valve. The punching device according to claim 2, wherein: