KR101748429B1 - Square hole drilling machine - Google Patents

Square hole drilling machine Download PDF

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Publication number
KR101748429B1
KR101748429B1 KR1020150123856A KR20150123856A KR101748429B1 KR 101748429 B1 KR101748429 B1 KR 101748429B1 KR 1020150123856 A KR1020150123856 A KR 1020150123856A KR 20150123856 A KR20150123856 A KR 20150123856A KR 101748429 B1 KR101748429 B1 KR 101748429B1
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KR
South Korea
Prior art keywords
gear box
shaft
driven
case
sprocket
Prior art date
Application number
KR1020150123856A
Other languages
Korean (ko)
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KR20170027215A (en
Inventor
김현제
Original Assignee
김현제
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Publication date
Application filed by 김현제 filed Critical 김현제
Priority to KR1020150123856A priority Critical patent/KR101748429B1/en
Publication of KR20170027215A publication Critical patent/KR20170027215A/en
Application granted granted Critical
Publication of KR101748429B1 publication Critical patent/KR101748429B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/038Gearboxes for accommodating bevel gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/06Gearings for conveying rotary motion by endless flexible members with chains

Abstract

The present invention maximizes work efficiency by allowing a square hole for installing a switch or a receptacle having an outer shape such as a rectangular shape on an inner and outer wall of a building to be easily pierced using the power of an electric power tool such as an electric drill And to provide a square grooved air that can be used to make it possible.
That is, the present invention relates to a case (2) having an open bottom portion; A gear box 7 slidably installed in the case 2; A shaft 3 axially installed to penetrate the case 2 and the gear box 7; A movable bevel gear 16 axially fixed in the middle of the shaft 3 via the inside of the gear box 7; A driven bevel gear 17 axially fixed to a drive shaft 18 provided in the direction of the gear box 7 so as to be engaged with the fixed bevel gear 16 in four directions; Front and rear brackets (11, 12) installed in four directions outside the gear box (7) and extending downward from the height of the gear box (7); A driven sprocket 13 axially fixed to a drive shaft 18 positioned between the front and rear brackets 11 and 12 and a driven shaft 19 formed on the driven shaft 19 between the front and rear brackets 11 and 12, A chain sprocket (14,15); A saw chain (10) wound on the sprocket (13) and the driven chain sprockets (14, 15) in an endless track form; And a center drill (22) detachably attached to the lower end of the shaft (3).

Description

Square hole drilling machine}

[0001] The present invention relates to a rectangular groove air, and more particularly, to a rectangular groove air in which a rectangular hole for installing a switch, an outlet, etc. having an outer shape such as a rectangular shape on an inner and outer wall of a building is used by using the power of a power tool such as an electric drill So that it is possible to easily perforate the air, thereby maximizing the working efficiency.

Generally, at least one of a switch and an outlet for interrupting the supply of electricity is installed at a required position of the inner and outer walls of the building.

In recent years, many buildings constructed using wooden, light-weight steel and synthetic resin panels (sandwich panels, etc.) have been built, and in order to install switches and outlets on the inner and outer walls of such buildings, And a switch and an outlet are embedded in the perforated groove to perform electric wiring, and a power plug is connected to the power source or to a power source for power supply.

When a square groove is to be used to install a switch or an outlet in such a building, a hole is drilled at four corners of the set position using an electric drill, and then the four holes are successively opened. After making a rectangular hole, a rectangular hole was formed and then a switch, an outlet, and electric wiring were performed. Therefore, drilling work and cutting work took a lot of time and manpower.

The circular switch and the circular receptacle can be easily pierced by joining the cylindrical cutting blade composed of the additional parts of the electric drill to the electric drill. However, since the square switch and the receptacle are inevitably burnt through the electric method, The development of other air has been desperately desired.

KR 10-2015-0093477 A Aug. 18, 2015.

Accordingly, the square groove air provided by the present invention provides a rectangular groove air that can squarely and efficiently penetrate a square groove when a square switch or an outlet is to be installed on the inner and outer walls of a building .

Further, the present invention is intended to provide a portable type of air which can be easily carried together with an electric power tool, so that a quadrilateral grooving can be easily performed at any place with a tool such as an electric drill.

The rectangular groove air provided in the present invention has a case in which a lower portion is open,

A gear box that is resiliently mounted on the inside of the case so as to be slidable up and down,

A shaft axially installed to penetrate the case and the gear box,

A driven bevel gear fixed on the shaft in the middle of the shaft via the inside of the gear box,

A driven bevel gear axially fixed to a driving shaft provided in the direction of the gear box 4 so as to be engaged with the primary bevel gear in four directions,

Front and rear brackets installed in four directions outside the gear box and extending downward from the gear box height,

A sprocket fixed on a drive shaft located between the front and rear brackets,

A driven chain sprocket formed on the driven shaft at the lower left and right between the front and rear brackets,

A top chain that is wound in an endless track manner on the sprocket and the driven chain sprocket;

And a center drill detachably provided at a lower end of the shaft.

According to the present invention, the gear box can be resiliently mounted by a case and a spring. Further, at least one guide pin formed on the outside of the gear box of the present invention, and a guide hole guided by the guide pin, So as to be formed in the longitudinal direction.

The square grooved air provided by the present invention can be used for constructing a square groove to install a square electric switch and an outlet on the inner and outer wall surfaces of a building.

When an electric drill is driven by coupling a shaft to an electric power tool such as an electric drill, an endless track type saw chain installed in a four-quadrant shape outside the gear box is driven by a power transmitting means provided inside the gear box by its rotational force, And a rectangular groove is formed by removing the inner wall surface of the rectangular cut portion after drawing the saw chain by machining the cut portion. It is possible not only to maximize the convenience of the work, but also to minimize the manpower and time consumption, to carry easily, It is a very remarkable invention that a square groove can be easily formed.

1 is a perspective view showing a preferred embodiment of the rectangular groove air provided in the present invention.
FIG. 2 is a bottom perspective view showing a preferred embodiment of the rectangular groove air provided in the present invention. FIG.
FIG. 3 is a perspective view of a squeegee hammered air according to an embodiment of the present invention,
FIG. 4 is a bottom perspective view showing a case in which the rectangular groove air provided in the present invention is removed,
5 is an exploded perspective view showing a preferred embodiment of the rectangular groove air provided by the present invention.
6 is a cross-sectional view showing a preferred embodiment of the rectangular groove air provided by the present invention
FIG. 7 is an explanatory view of a use state for explaining a work process of perforating a square groove using the rectangular groove air provided in the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

As used herein, the terms "substantially", "substantially", and the like are used herein to refer to a value in or near the numerical value when presenting manufacturing and material tolerances inherent in the meanings mentioned, Absolute numbers are used to prevent unauthorized exploitation by unauthorized intruders of the mentioned disclosure.

The square grooved air provided by the present invention provides an easy-to-carry rectangular grooved air for use in perforating a rectangular groove of a rectangular electric switch and an outlet on the inner and outer walls of a building,

A rectangular cut-out portion is formed on the inner and outer walls of the building by a saw chain installed in an infinite track configuration in four directions of a gear box which is slidably and resiliently mounted inside the case, and a rectangular groove is formed by removing the inside of the cut- .

Also, the saw chain may be driven using the power of a power tool such as a hand-held electric drill, and a center drill is provided at the center for preventing position setting and departure from the puncture.

FIG. 1 is an overall perspective view showing a preferred embodiment of the rectangular groove air provided by the present invention, and FIG. 2 is a bottom perspective view thereof.

As shown in the figure, the rectangular groove air 1 of the present invention is connected to a power tool such as an electric drill at the center of the case 2 so that a polygonal shaft 3 for rotatably receiving power is rotatably supported by the boss 4, And a plurality of upper and lower bearings (5)

A guide pin 6 is formed on one side or both sides of the case 2 so that a guide pin 8 fixed to a corresponding surface outside the gear box 7 will be detached from the gear box 7 Do not let them catch you. Needless to say, the guide pin 8 may be formed of a guide bolt or the like to which the guide pin 8 is screwed.

As shown in FIG. 2, the case 2 is open in its lower part. The case 2 is fixed to the case 2 in four directions of forward, backward, leftward and rightward directions except for the upper and lower parts of the gear box 7, And the saw chains 10 are installed in an infinite track shape so as to be able to cut a cut portion in a square on the wall surface.

Fig. 3 is a perspective view of the rectangular tread air 1 according to the present invention in a state in which the case 2 is removed in a preferred embodiment. Fig. 4 is a bottom perspective view thereof, Fig. 5 is an exploded perspective view, .

That is, the gear box 7 installed in the case 2 of the other air 1 is driven by the rotational power transmitted through the shaft 3 through the saw chain 10 installed in the infinite track type in four directions. .

The saw chain 10 installed in the direction of the gear box 7 has a sprocket 13 which is a sprocket which is installed between the front and rear brackets 11 and 12 and two sprockets 14 and 15 which are fixed to two driven chain sprockets 14 and 15, And the lower part is installed horizontally and linearly in the drawing.

That is, the lower straight portion of the saw chain 10 wound in an endless track shape is connected to the wall surface, and the cut portion is formed in a rectangular shape on the wall surface.

To this end, the height of the saw chain 10 is extended to a lower portion of the gear box 7 by a predetermined width. The height of the saw chain 10 (see FIG. 6) ), Which is a part of the apparatus, is performed.

As shown in FIGS. 5 and 6, the shaft 3 is installed on the shaft 7 so as to penetrate through the center of the gear box 7 by means of the vertical bearing 5, The driven bevel gear 16 is fixed in the middle of the shaft 3 via the driven bevel gear 17 so that the driven bevel gear 17 is engaged in the direction of 90 degrees in the four directions.

It is a matter of course that the driven bevel gear 17 is fixed to the drive shaft 18 which is coaxial with the driven sprocket 13.

The left and right driven chain sprockets 14 and 15 on the lower side on which the saw chain 10 is wound together with the sprocket 13 are formed integrally with the driven shaft 19 or separately driven by the driven shaft 19, And the bearing 20 or the like for axially supporting the rotation of the drive shaft 18 and the driven shaft 19 is a common shaft support means. As shown in Fig.

A gear box cover 21 is provided at the lower portion of the gear box 7 so as to be openable and closable for manufacturing and repairing. A rectangular hole is formed at the lower end of the shaft 3, And a center drill 22 for detachment of the other air 1 when the hole is perforated is detachably installed.

In the figure, reference numeral 23 denotes a wall surface, and 24 denotes an electric drill or the like.

The rectangular tentative air 1 of the present invention, which can be configured as described above, is used when a square groove is formed on a wall surface by a preliminary operation when a switch, an outlet or the like is to be installed on the inner and outer wall surfaces of a building,

7, the center drill 22 is connected to a square central portion at a position where a switch and an outlet are to be installed on the wall surface 23 after the shaft 3 is fixedly coupled to a tool such as the electric drill 24 When the electric drill 24 is driven, a hole is pierced by the center drill 22 at the central portion of the square. In addition, driven by the shaft 3, the driven bevel gear 16 and the driven bevel gear 17, And the sprocket 13, which is a driving sprocket on the driven shaft 18, is driven.

As a result, the top chain 10 wound in a cantilever manner is driven on the sprocket 13 and the left and right driven chain sprockets 14 and 15 of the lower portion to drive the wall connecting portions corresponding to the four sides of the quadrangle The horizontal lower end portion of the saw chain 10 is gradually cut.

At this time, the operator holds the electric drill 24 with both hands and pushes it against the wall surface 23, and the lower end portion of the case 2 keeps the conical state on the wall surface 23, 7 are slid toward the wall surface 23 in accordance with the degree of cutting of the wall surface of the saw chain 10 so that the cutting portion is formed in a square shape on the wall surface 23. The lower portion of the gear box 7 contacts the wall surface 23, The saw chain 10 can no longer enter the wall surface 23 and the cutting operation is completed.

When the electric drill 24 is separated from the wall surface 23, the gear box 7, which is resiliently mounted on the tension spring 9, is slidably inserted into the case 2 together with the shaft 3 will be.

When the saw chain 10 enters the wall surface 23 for the purpose of piercing a square hole in the case 2 and the saw chain 10 exits the cut portion after processing the square cut portion, One or more guide pins 8 formed on the gear box 7 when guided by the restoring elasticity of the tension spring 9 are guided along the guide holes 6 formed in the corresponding portions of the case 2 to be stable An accurate slide operation is performed.

When the saw chain 10 and the center drill 22 are completely separated from the rectangular cut portion and the central wall surface, an operator inserts a tool such as a screwdriver into a rectangular cut portion and uses a lever principle or the like to remove the wall surface inside the rectangular cut portion And then a square groove is formed. Then, a switch, an outlet or the like is wired and buried in a rectangular groove.

Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And will be apparent to those skilled in the art.

1: (square groove) Other air 2: Case 3: Shaft 4: Boss 5: Bearing
6: guide ball 7: gear box 8: guide pin 9: spring 10: saw chain
11, 12: (front and rear) Bracket 13: Sprocket of the driven chain 14, 15: Sprocket chain
16: original bevel gear 17: driven bevel gear 18: drive shaft 19: driven shaft
20: Bearing 21: Gear box cover 22: Center drill

Claims (4)

  1. A case 2 having an open bottom;
    A gear box (7) provided inside the case (2) so as to be resiliently slidable;
    A shaft 3 axially installed to penetrate the case 2 and the gear box 7;
    A movable bevel gear 16 axially fixed in the middle of the shaft 3 via the inside of the gear box 7;
    A driven bevel gear 17 axially fixed to a drive shaft 18 provided in the direction of the gear box 7 so as to be engaged with the fixed bevel gear 16 in four directions;
    Front and rear brackets (11, 12) installed in four directions outside the gear box (7) and extending downward from the height of the gear box (7);
    A sprocket 13 which is fixed to a drive shaft 18 located between the front and rear brackets 11 and 12,
    A driven chain sprocket (14, 15) formed on the driven shaft (19) at the lower left and right between the front and rear brackets (11, 12);
    And a saw chain (10) wound on the sprocket (13) and the driven chain sprockets (14, 15) in an endless track manner.
  2. The method of claim 1, further comprising:
    And a center drill (22) detachably attached to the lower end of the shaft (3).
  3. The method of claim 1, further comprising:
    Wherein the gear box (7) is resiliently mounted to the case (2) and a spring (9).
  4. The method of claim 1, further comprising:
    At least one guide pin (8) formed outside the gear box (7);
    Wherein a guide hole (6) guided by the guide pin (8) is formed in a vertical direction on a surface corresponding to the case (2).
KR1020150123856A 2015-09-01 2015-09-01 Square hole drilling machine KR101748429B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150123856A KR101748429B1 (en) 2015-09-01 2015-09-01 Square hole drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150123856A KR101748429B1 (en) 2015-09-01 2015-09-01 Square hole drilling machine

Publications (2)

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KR20170027215A KR20170027215A (en) 2017-03-09
KR101748429B1 true KR101748429B1 (en) 2017-06-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109093157A (en) * 2018-08-27 2018-12-28 东宁晟(北京)数字科技有限公司 A kind of external-drive opening square hole machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004025420A (en) 2002-05-07 2004-01-29 Kazumasa Matsuura Drive device of ring saw and cutting device with ring saw
KR100609648B1 (en) 2005-03-25 2006-07-31 (주)대동석재공업 A drill
JP2009030336A (en) 2007-07-27 2009-02-12 Onoda Chemico Co Ltd Multiple excavating and agitating blade drive unit in ground improving machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150093477A (en) 2014-02-07 2015-08-18 이세중 Circle punch for pile that have cut into vinyl

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004025420A (en) 2002-05-07 2004-01-29 Kazumasa Matsuura Drive device of ring saw and cutting device with ring saw
KR100609648B1 (en) 2005-03-25 2006-07-31 (주)대동석재공업 A drill
JP2009030336A (en) 2007-07-27 2009-02-12 Onoda Chemico Co Ltd Multiple excavating and agitating blade drive unit in ground improving machine

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