KR100531204B1 - Dust protector of hammer drill - Google Patents

Abstract

The present invention relates to an apparatus for preventing dust of a hammer drill, and more particularly, to an apparatus for preventing dust or dust from being emitted from a wall or ceiling during use of a hammer drill for drilling holes in a wall or ceiling. It is about.

According to the present invention, a first sidewall and a first bottom surface of a transparent material form a cup shape, and the first bottom surface is processed such that a first drill passage hole through which a drill blade can pass is passed through the first bottom surface. A first dust cup forming a partition so that dust is collected in a predetermined space between the first side walls; A second dust cup comprising a second side wall into which the first side wall can be fitted, and a second bottom surface connected to the second side wall and machined through a second drill passage through which the drill blade can pass; and; A dust cup coupling part attached to an outer surface of the second dust cup and configured to couple the second dust cup to a drill body; A first coil spring fixed to an outer bottom surface of the first dust cup and supporting the first and second dust cups to be spaced apart from each other; Characterized in that made.

Description

Dust protection device of hammer drill {Dust Protector Of Hammer Drill}

The present invention relates to an apparatus for preventing dust of a hammer drill, and more particularly, to an apparatus for preventing dust or dust from being emitted from a wall or ceiling during use of a hammer drill for drilling holes in a wall or ceiling. It is about.

When drilling holes in walls or ceilings using hammer drills, chips such as concrete, wood, steel, and wallpaper, which form walls or ceilings, are cut by the drill blade and are cut by the drill blade rotating at high speed. Dust such as dust and dust are scattered everywhere. This dust not only pollutes the surrounding environment but also adversely affects workers, particularly breathing disorders and physical injuries.

Various devices for preventing such dust during drilling have been published so far.

First, the Japanese Utility Model Model No. 59-143612, one of the conventional dust prevention apparatuses, includes an inner cylinder portion 10 and an outer cylinder portion 12, and includes an inner cylinder portion 10 and an outer cylinder portion 12. A coil spring 18 is attached to each of the edge portions 14 and 16. Since the inner cylinder portion 10 and the outer cylinder portion 12 are cylindrical, the tip of the drill body 1 must be circular. In addition, since the inner cylinder portion 10 and the outer cylinder portion 12 are connected by a spring and the inner cylinder portion of the drill body side is inserted into the outer cylinder portion, the depth of the drill processing is the minimum length of the inner cylinder portion 10 and the outer cylinder portion 12 overlapping each other. It is limited to, and also the dust between the inner cylinder portion 10 and the outer cylinder portion 12 to interfere with the sliding movement of the inner cylinder portion 10 and the outer cylinder portion 12, as well as the inner cylinder portion 10 and the outer cylinder portion 12 There was a problem in that all the dust into the drill chuck to damage the drill.

Another conventional technique is Korea Utility Model Registration No. 175008, in the case of Registration Utility Model No. 175008, the bearing 22 and the bearing support 24 which are forcibly fitted to the drill blade 20 are formed on the cover 26. And a technique for preventing dust by using the transparent corrugated pipe 28 is disclosed. However, in this case, it is not possible to use a variety of drill blades of different diameters, and in the case of using drill blades of different diameters, the structure and method of use are complicated, such as the need to replace the bearings, and the use of a hammer drill that operates before and after the drill blade. Due to the nature of the corrugated pipe has a problem that it is difficult to close the transparent wrinkle pipe to the workpiece to prevent the leakage of dust.

Another conventional technique is Republic of Korea Utility Model Registration No. 322876. Utility Model Registration No. 322876, the second collecting member 32 is inserted into the inside of the first collecting member 30, and the second collecting member 32 emerges back and forth, and the first collecting member 30 and the second collecting member ( An elastic member 34 connecting 32 is disclosed. However, both the first collecting member and the second collecting member have no bottom surface, and as a result, dust is accumulated on the drill chuck during ceiling work, thereby damaging the drill chuck, and overlapping the minimum length of the first collecting member and the second collecting member. The depth of the furnace drill operation is limited, and the first collecting member and the second collecting member are constantly connected, so that storage and handling are not easy.

All of the prior art as described above has a problem in that the dust prevention device is integrally combined so as to move the waste body together with the drill body to remove the collected dust.

The present invention has been made to solve the above problems, to provide a dust prevention device of the hammer drill that can efficiently collect dust scattered during the drilling operation and prevent dust from entering the drill chuck. For that purpose.

In addition, another object of the present invention is to adjust the length can also be used for a long length of the drill blade, to easily remove the dust of the device of the dust prevention device to facilitate the removal of dust and various operations.

Hammer drill dust prevention device of the present invention for achieving the above object,

The first sidewall and the first bottom surface of the transparent material form a cup shape, and the first bottom surface is processed to penetrate the first drill passage hole through which the drill blade can pass, and the first bottom surface and the first sidewall A first dust cup forming a partition so that dust is collected in a predetermined space therebetween;

A second dust cup comprising a second side wall into which the first side wall can be fitted, and a second bottom surface connected to the second side wall and machined through a second drill passage through which the drill blade can pass; and;

A dust cup coupling part attached to an outer surface of the second dust cup and configured to couple the second dust cup to a drill body;

A first coil spring fixed to an outer bottom surface of the first dust cup and supporting the first and second dust cups to be spaced apart from each other; Characterized in that made.

In addition, in order to realize the technical idea of the present invention, the third sidewall and the third bottom surface of the transparent material which can be inserted into the first dust cup form a cup shape, and the drill blade passes through the third bottom surface. And a third dust cup which is machined to pass through a third drill through hole, and forms a partition wall to collect dust in a predetermined space between the third bottom surface and the third side wall, and the outside of the third dust cup. It is also preferable to further provide a third coil spring fixed to the lower surface.

The partition wall of each of the dust cups is formed by protruding each bottom surface into a space formed by the side wall with the drilled hole as a peak, or a through hole through which a drill can pass through the center. It may be formed by attaching the partition forming member to the bottom surface of the dust cup.

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

Figure 4 is a perspective view of the dust prevention device of the present invention, Figure 5 is a cross-sectional view showing the partition structure of the dust cup and Figure 6 is a cross-sectional view showing the operating relationship of the present invention.

As shown in FIG. 4, in the present invention, the first sidewall 102 and the first bottom surface 104 of the transparent material form a cup shape, and a drill blade may pass through the first bottom surface 104. The first drill through hole 106 is processed to penetrate, and the first bottom surface inclined into the space formed by the first side wall 102 with the position where the first drill through hole 106 is processed as a vertex. 104 and the first dust cup 100 is formed;

A second bottom machined through a second sidewall 112 into which the first sidewall 102 can be fitted and a second drill passage 116 connected to the second sidewall and through which a drill blade can pass A second dust cup 110 having a face 114;

A dust cup coupling part 120 attached to an outer surface of the second dust cup 110 and configured to couple the second dust cup 110 to a drill body;

A first coil spring 130 fixed to the outer bottom surface of the first dust cup 100; It is done.

The first dust cup 100 is provided with a first drill through hole 106 penetrated to the bottom surface to allow the drill blade to pass through the first drill through hole 106, and the material is made of a transparent material during drill work. Know where the drill bit is. In addition, the first bottom surface 104 is formed to be inclined into the first dust cup 100 with the first drill through hole 106 as a vertex, and when drilling the ceiling, the drill blade is rotated by the rotation of the drill blade. As the air flows around, dust is accumulated in the inner space formed by the first side wall 102 and the first bottom surface 104, thereby preventing the dust from pouring into the drill body through the first drill through hole 106. To be.

The edge of the first sidewall 102 on the side opposite to the first bottom surface 104 of the first dust cup 100 is further provided with a soft dust prevention ring 108 to provide a wall or ceiling surface and a first dust cup ( It is also desirable to prevent dust from leaking out between 100).

The second dust cup 110 may include a second sidewall 112 through which the first sidewall 102 may be fitted, and a second drill passage hole connected with the second sidewall and through which a drill blade may pass. 116 consists of a second bottom surface 114 machined to penetrate the interior of the second sidewall 112, which allows the first sidewall 102 to be tightly assembled so that the dust of both sidewalls 102 and 112 is leaked. It is desirable not to come out.

The first sidewall 102 and the second dust cup 112 are further provided with a soft contact ring 118 at the edge of the second sidewall 112 opposite the bottom surface 114 of the second dust cup 110. It is also desirable to prevent dust from leaking in between.

In addition, since the first dust cup 100 is made of a transparent material, dust is accumulated and flowed into the second dust cup 110 more than the height of the first drill through hole 106, but the second dust cup 110 The bottom surface 114 is also inclined toward the inside of the second dust cup 110 with the second drill through hole 116 as a vertex, so that the dust accumulated by the height of the first drill through hole 106 is the second dust cup. It is also preferable to prevent dust from being scattered back toward the worker or the drill body even if it is scattered to the inside.

The first coil spring 130 is fixedly attached to the lower end of the first dust cup 100, and the first coil spring 130 serves to make the first dust cup 100 closely adhere to the wall or the ceiling. do. In addition, unlike the prior art, the first coil spring 130 is fixedly attached only to the first dust cup 100, so that when the dust prevention device is not used, the first dust cup 100 and the second dust cup 110 are It is easy to store because it can be separated.

The second dust cup 110 may be coupled to the drill body by a dust cup coupling part 120 attached to an outer surface thereof. This coupling may be made in the form of the drill body or the like to be fitted to the handle of the drill, which will be omitted by the person skilled in the art can be easily designed as needed.

 The third sidewall 142 and the third bottom surface 144 of the transparent material which can be inserted into the first dust cup 100 form a cup shape, and a drill blade passes through the third bottom surface 144. The third drill through hole 146 may be processed to pass through, and the third bottom surface 144 may include the third sidewall 142 with the third drilled through hole 146 as a peaked position. The third dust cup 140 is formed to be inclined into the space, and the third coil cup 150 is fixed to the outer bottom surface of the third dust cup 140. When inserted into one dust cup 100, it becomes possible to process a deep hole using a drill blade of a long length as shown in FIG. That is, the conventional dust prevention device can process only holes having a depth of about the axial length of the first dust cup, but according to this embodiment, the sum of the axial lengths of the first dust cup and the third dust cup is summed. A hole having a depth can be machined.

The edge of the third side wall 102 opposite to the third bottom surface 144 of the third dust cup 140 is further provided with a soft dust prevention ring 148 to provide a wall or ceiling surface and the first dust cup 100. It is also desirable to prevent dust from leaking out between them.

In the present embodiment, in order to form a partition wall for collecting dust in a predetermined space between the bottom surface and the side wall, the bottom surface is inclined into the dust cup with the drill passage opening as a peak as shown in FIG. Although the surface itself was used as the partition wall, it is also possible to bend the bottom surface perpendicularly into the dust cup as shown in FIG. 6 (b) so that the bottom surface functions as a partition wall.

 In addition, it is also possible to form a partition wall by attaching a partition wall forming member, through which a passage hole through which a drill passes, to the bottom surface of the dust cup, as shown in FIG. 6 (c) (d).

The present invention having the configuration as described above, it is possible to efficiently collect dust scattered during the drilling operation and to prevent dust from entering into the drill chuck, the structure is simple, there is no fear of failure, and also adjust the length This makes it possible to use long drill bits. In addition, the present invention is easy to remove the dust cup because it is easy to remove the dust because the dust cup can be separated in the waste place by separating only the dust cup after the work, and also the dust prevention is easy to store the effect.

1 is a view showing a conventional dust prevention device.

Figure 2 shows another conventional dust prevention device.

Figure 3 shows another conventional dust prevention device.

Figure 4 is an exploded perspective view showing a dust prevention device of the present invention.

5 is a cross-sectional view showing a state of use of the dust prevention device of the present invention.

6 is a cross-sectional view showing a partition structure of the dust cup of the present invention.

* Description of symbols on the main parts of the drawings *

100: first dust cup 110: second dust cup

130: first coil spring 140: third dust cup

150: third coil spring

Claims (5)

The first sidewall and the first bottom surface of the transparent material form a cup shape, and the first bottom surface is processed to penetrate the first drill passage hole through which the drill blade can pass, and the first bottom surface and the first sidewall A first dust cup forming a partition so that dust is collected in a predetermined space therebetween; A second dust cup comprising a second side wall into which the first side wall can be fitted, and a second bottom surface connected to the second side wall and machined through a second drill passage through which the drill blade can pass; and; A dust cup coupling part attached to an outer surface of the second dust cup and configured to couple the second dust cup to a drill body; A first coil spring fixed to an outer bottom surface of the first dust cup and supporting the first and second dust cups to be spaced apart from each other; Dust prevention device of the hammer drill, characterized in that made. The method of claim 1, The third sidewall and the third bottom surface of the transparent material, which may be inserted into the first dust cup, form a cup shape, and the third drill passage hole through which the drill bit passes may pass through the third bottom surface. And a third dust cup having a partition wall formed therein for collecting dust in a predetermined space between the third bottom surface and the third side wall, and a third coil spring fixed to an outer bottom surface of the third dust cup. Dust prevention device of the hammer drill, characterized in that. The method according to claim 1 or 2, The partition wall of the dust cup, The bottom surface of the drill through hole is formed to be protruded into the interior of the space formed by the side wall to protrude, or Or the dust prevention device of a hammer drill, characterized in that formed by attaching a partition forming member through which a through hole through which the drill can pass in the center to the bottom surface of the dust cup. The method according to claim 1 or 2, A dust prevention device of a hammer drill, characterized in that a contact ring of a soft material is provided at a side wall edge of a dust cup having a large inner diameter among the dust cups inserted and connected to prevent dust from leaking between the side walls by the contact ring. The method according to claim 1 or 2, And a dust prevention ring of a soft material on the edge of the side wall of the dust cup in contact with the workpiece.