KR102231199B1 - Dust collecting apparatus having hand mounted type dust inlet - Google Patents

Abstract

The present invention relates to a dust collecting device having a hand-mounted dust inlet, and more specifically, a large amount of dust generated in the process of smoothly polishing the surface of a building is inhaled and collected to create a comfortable working environment, but using an open grinder. While enabling precise work that allows the operator to check the grinding position, the generated dust is quickly inhaled through the dust inlet installed in the user's hand, and the particles contained in the inhaled dust are collected through a mesh filter installed on the suction line. It relates to a dust collecting device having a separate detachable hand-mounted dust inlet.

Description

Dust collecting apparatus having hand mounted type dust inlet TECHNICAL FIELD

The present invention relates to a dust collecting device for polishing work having a hand-mounted dust suction port, and more particularly, to create a comfortable working environment by inhaling and collecting a large amount of dust generated in the process of smoothly polishing the surface of a building, but using an open grinder. By using it, the operator can check the grinding position, and the generated dust is quickly inhaled through the dust inlet installed in the user's hand, and the particles contained in the inhaled dust are installed on the suction line. It relates to a dust collecting device for grinding work having a hand-mounted dust suction port that can be separately separated through.

In general, grinders are used for surface treatment and processing of wood, stone and metal materials. For example, a grinder for polishing the surface of various structures such as ships and interior and exterior materials for various buildings is rotated at high speed while a polishing head and a polishing plate are inserted and fixed to a drive shaft to polish the surface of a workpiece such as metal and stone.

Since the conventional grinder constructed as described above has a configuration that polishes the surface by simply rubbing a polishing member rotating at a high speed on the surface of the object to be processed, a large amount of dust is generated during processing, resulting in a problem that workability and productivity are deteriorated. There is this.

Grinding work using such a grinder is also being carried out in new building construction sites. That is, in the case of constructing a building wall by pouring concrete and curing, a plurality of formwork is used when pouring concrete, so after curing is completed, the formwork is removed, and then the strip-shaped protrusion formed by the interface between the two forms, Grinding is performed to flatten the roughness. Since the interior grinding work of the building has a larger amount of dust than that of other materials and is indoors, the generated dust is not well discharged, and thus, dust inhalation occurs frequently during worker breathing. Therefore, although workers wear dust masks and protective glasses, it is difficult to secure a view of the work space due to the accumulation of large amounts of dust, which affects other workers in the vicinity, making it difficult to quickly finish the work.

Accordingly, some provide a function of collecting dust immediately after work by connecting a dust collecting device.

Korean Patent Registration No. 10-1324158 (registered on October 25, 2013; hereinafter referred to as Prior Document 1) proposed an eco-friendly dust-preventing grinder and an eco-friendly surface treatment method using the same. The Prior Document 1 is a structure in which a cylindrical grinder head case is provided to minimize the discharge of dust polished by an internal abrasive to the outside, and is connected to the head case with a dust collector and a hose to suck and remove the dust in the head case. Is provided.

In the above form, since the head case covers the internal polishing agent, it is difficult to accurately polish the necessary parts of the building's inner wall, and the concrete fragments generated when polishing the inner wall surface of the building are inserted into the dust collecting device as they are, and a filter bag for separating dust in the dust collecting device. There is a problem in that the filtering ability of the dust is deteriorated due to damage to the filter.

Korean Patent Registration No. 10-1844061 (registered on March 26, 2018; hereinafter referred to as'priority document 2') proposed a dust collecting cover for a grinder.

In the preceding document 2, a part of the dust collecting cover was configured to be openable and closed, so that it was possible to check the abrasive that rotates inside during operation, but it was not possible to prevent the generated concrete pieces from entering the dust collecting device.

1) Korean Patent Registration No. 10-1324158 (registered on October 25, 2013; hereinafter referred to as'prior document 1') is an eco-friendly dust prevention grinder and an eco-friendly surface treatment method using the same. Korean Patent Registration No. 10-1823139 (registered on January 23, 2018): Tunnel type ozone cleaning odor removal device

Accordingly, the dust collecting device for grinding work having a hand-mounted dust suction port of the present invention,

The purpose of the purpose is to provide a device that can prevent double investment in facilities because it uses only a dust collector while using the existing grinder as it is without the need to purchase a new grinder to remove dust.

In addition, since the dust inlet of the dust collecting device is mounted on the operator's hand and used, the target surface can be easily identified with the naked eye, and a comfortable working environment can be created by quickly absorbing and removing the generated dust without using a cover. I can do it.

In particular, it is an object of the present invention to provide a device capable of preventing damage to the internal dust collection filter due to the introduction of a large concrete mass into the dust collection body by filtering a bulky mass in the suctioned dust by installing a multiple filter on the line of the suction pipe.

The dust collecting device for grinding work having a hand-mounted dust suction port of the present invention for achieving the above object,

What is claimed is: 1. A dust collecting device for a polishing operation that sucks and collects dust, comprising: a dust collecting body having a dust collecting filter inside to separate and collect the dust contained in the suction air and discharge the air; A dust suction fixture having a dust suction port and mounted on a worker's hand or wrist; It comprises; a suction and transfer pipe that connects the dust suction fixture and the dust collection body to transfer the air containing the inhaled dust to the dust collection body.

In addition, a dust collecting device for collecting dust by inhaling, comprising: a dust collecting body having a suction fan therein to suck and discharge air; A dust suction fixture having a dust suction port and mounted on a worker's hand or wrist; A suction and transfer pipe connecting the dust suction fixture and the dust collecting body to transfer the air containing the inhaled dust to the dust collecting body; It may include a; filter pipe is mounted between the suction transfer pipe and the dust collecting body to filter the crushed particles and dust.

The dust suction fixture includes a plate-shaped fixing body seated on an upper part of an operator's hand; A suction pipe part formed on the upper part of the fixed body, a suction port for suctioning air is formed at a front side, and a suction and transfer pipe connected at a rear side; It includes; one end is attached to the fixed body and the other end is a fixing belt for fixing the operator's hand or wrist or arm.

In addition, at the front end of the fixed body, an arc-shaped shear protection unit extending forward and downward is further formed to cover the front part of the operator's hand grabbing the grinder handle to prevent the inhaled crushed particles from colliding with the operator's hand.

A filter pipe is further mounted between the suction and transfer pipe and the dust collecting body to prevent the crushed material particles from flowing into the dust collecting body.

The filter tube includes: a filter body having a filter coupling groove formed on an inner surface thereof in a direction orthogonal to an axial direction, and an opening in one direction; A mesh filter comprising an annular packing portion fitted into the filter coupling groove of the filter body through the open portion of the filter body, and a mesh body portion disposed inside the packing portion; A filter cover that is inserted into the open portion of the filter body to close the inside of the filter body; And a locking device for detachably coupling the filter body and the filter cover.

In this case, a plurality of mesh filters are mounted in the axial direction inside the filter tube, and the pore size of the mesh body is gradually reduced from the air inflow side to the discharge side, so that the crushed material grains can be sequentially filtered by size. .

The dust collecting device for grinding work having a hand-mounted dust suction port of the present invention by the above solution means,

It is possible to remove dust without the cover of the grinder by inhaling and removing the dust generated during the grinding work in the building using the dust suction fixture mounted on the worker's hand. This is because the work is performed while the operator checks the polishing position with the naked eye, thereby enabling a more precise polishing operation.

In addition, a filter pipe is installed on the suction line to collect and remove the crushed particles from the filter pipe, thereby reducing the cost of purchasing a device that can prevent the crushed particles from flowing into the dust collecting body and damaging the dust collecting filter and reducing the dust collection rate. It has become possible to provide a useful device capable of preventing damage to the dust collector while facilitating work.

1 is an overall configuration diagram of a dust collecting device according to a preferred embodiment of the present invention.
2A and 2B are a perspective view and an axial cross-sectional view showing a dust suction fixture according to an embodiment of the present invention.
Figure 2c is a cross-sectional view showing a dust suction fixture provided with a shear protection unit according to another embodiment of the present invention.
Figure 3a is a cross-sectional view showing a filter tube according to a preferred embodiment of the present invention.
Figure 3b is an AA cross-sectional view of Figure 3a.
3C is a plan view and a cross-sectional view showing a mesh filter according to a preferred embodiment of the present invention.
4 is a schematic configuration diagram showing a dust collecting device according to another embodiment of the present invention.

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that the other component does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

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

1 is an overall configuration diagram of a dust collecting apparatus according to a preferred embodiment of the present invention.

As mentioned above, the dust collecting device 10 for grinding work having a hand-mounted dust suction port according to the present invention includes a dust collecting body 20 in which a dust collecting filter 21 is embedded, and a dust suction fixing table having a suction port 321 for sucking dust. (30) And it is configured to include a suction transfer pipe 40 for transporting the suctioned dust to the dust collecting body.

The dust collecting body 20 is composed of a tubular body and a dust collecting filter 21 is installed therein to filter the dust and pass only the air to be discharged to the outside in the process of passing the air containing the sucked dust. A suction fan 22 is mounted inside or outside the dust collecting body 20 so that air is sucked in and discharged. In addition, the dust collecting filter 21 uses a commercially available filter that filters dust, and is typically a bag filter.

Inside the dust collecting body 20, a space is partitioned by a dust collecting filter 21, an inlet through which air containing dust is introduced is formed in one space, an outlet is formed in the space partitioned on the other side, and an air outlet is provided. A suction fan 22 is installed in close proximity so that the air introduced through the inlet passes through the dust collection filter 21, so that the contained dust is filtered through the dust collection filter and only clean air is discharged to the outside through the discharge port.

Therefore, the dust collecting body 20 is provided in a separable configuration with the dust collecting filter 21 as the center, so that the suction power can be prevented from deteriorating by periodically replacing the dust collecting filter 21 or removing the collected dust. Can be installed to facilitate movement.

2A and 2B are perspective and axial cross-sectional views illustrating a dust suction fixture according to an embodiment of the present invention.

The dust suction fixture 30 is mounted on the hand of an operator who holds the handle of the grinder so that the dust generated during the grinding operation of the grinder is immediately sucked.

The dust suction fixture 30 is provided with a plate-shaped fixing body 31 that is seated on the hand or arm of the operator. The fixed body 31 may be formed in a curved surface in the width direction to surround the operator's hand or arm, and air flows between the operator's hand or arm by forming a plurality of air passages on the inner surface to improve ventilation in summer. I can make it.

A suction pipe part 32 is formed on the upper part of the fixed body. The suction pipe part 32 is formed with a suction port 321 in the front so that a large amount of dust generated in the polishing process is sucked, and a connection part is formed in the rear so that the suction and transfer pipe 40 is connected.

The coupling with the suction and transfer pipe 40 is tightly coupled to prevent leakage of internal pressure using a screw coupling method or a separate coupling means. At this time, the airtightness can be improved by further inserting a packing between the suction and transfer pipe and the suction pipe.

In the drawing, the suction pipe part 32 is shown to be formed on the rear side of the fixed body 31, but may be provided in a form protruding further forward than the fixed body to be disposed closer to the grinding position of the grinder.

In addition, a fixed belt 33 is further attached to one side of the fixed body 31. The fixing belt 33 can be applied to various fixing means, and is preferably formed of a Velcro tape to facilitate mounting on the hand or arm of the operator. One end of the fixed belt is fixedly attached to one side of the fixed body, and the other end of the fixed belt is detachably attached to the other side of the fixed body by winding the operator's hand, wrist, or arm so that it is integrally fixed to the operator's hand. .

As described above, if the fixing belt 33 is provided, it can be conveniently used because it moves like a hand without holding the dust suction fixing table 30 separately. In addition to being formed as one, the fixed belt may be formed in a number of pieces to be fixed to the arm. In addition, the fixed belt is also configured in the suction transfer pipe and is fixed to the arm of the operator to prevent the suction and transfer pipe from being caught and uncomfortable during work.

As shown in FIG. 2C, the dust suction fixing table 30 may further form a shear protection part 311 at the front end of the fixing body 31. The shear protection part 311 has an arc shape extending forward and downward to cover and cover the front part of the clenched fist of the worker holding the grinder handle when mounted. Since the shear protection part 311 covers the user's hand, it is possible to prevent the worker from being injured by blocking the contact of the hand when the grains crushed by grinding are sucked when inhaling at high pressure from the upper suction pipe part 32. .

It is preferable that the dust suction fixture 30 is formed of a material that is as light as possible to minimize the feeling of weight for the installed worker to reduce work fatigue. Silicone is a representative material that can be used as a dust suction fixture.

Next, the suction transfer pipe 40 is connected at one end to the dust suction fixture 30 and the other end is connected to the dust collecting body 20 to transmit the suction power of the dust collecting body to the dust suction fixture, and the dust suction fixture 30 It is a device that sucks air containing dust from and delivers it to the dust collecting body 20. The suction and transfer pipe 40 may be easily bent or folded using a bellows tube.

3A is a cross-sectional view showing a filter tube according to a preferred embodiment of the present invention, FIG. 3B is a cross-sectional view A-A of FIG. 3A, and FIG. 3C is a plan view and a cross-sectional view showing a mesh filter according to a preferred embodiment of the present invention.

As referenced, the filter pipe 50 according to the present invention is mounted between the suction and transfer pipe 40 and the dust collecting body 20 to filter before the crushed material particles flow into the dust collecting body 20. It prevents the dust collection rate from deteriorating due to damage to the dust collection filter.

The filter pipe 50 may be configured integrally with the suction and transfer pipe 40, and may be used as a separate individual configuration as shown.

It is preferable that the filter tube 50 is standardized according to commercially available products so that the filter tube 50 can be used by connecting to an existing dust collecting device.

The filter tube 50 includes a filter body 51 having a U-shaped cross-sectional shape in which a filter coupling groove 511 to which the net filter 53 is coupled is formed in a direction orthogonal to an axis, and one side of the filter tube is opened. . Here, the opening portion is configured such that only the area in which the inner filter is mounted is formed, excluding the connection portion between the front end and the rear end.

The filter cover 52 is inserted into the open portion of the filter body 51 to close it. A filter coupling groove is formed on the inner surface of the filter cover to correspond to the filter body.

The mesh filter 53 is coupled to the filter coupling groove 511 formed on the filter body and the filter cover. The net filter 53 is composed of an annular packing part 531 and a net part 532 disposed inside the packing part. Therefore, the packing part of the mesh filter is inserted into the filter coupling groove 511 to remove the separation gap to prevent pressure leakage.

A locking device 54 is provided on the outer surface of the filter body 51 and the filter cover 52. The locking device 54 is for preventing the filter cover from being separated from the filter body due to internal pressure, and various means can be applied such as fixing by screws or making it easy to lock and release by a clip. have.

In this configuration of the filter tube 50, the filter coupling grooves 511 may be formed in a plurality in the axial direction so that a plurality of net filters 53 are mounted.

At this time, the mesh filter 53 may gradually form a smaller pore size (mesh size) of the filter mesh portion from the air inflow side to the discharge side, so that the crushed material grains may be sequentially filtered by size.

When the filter pipe 50 is installed at the front end of the dust collecting body 20, the dust in the suctioned air passes through the mesh filter 53 and is filtered by the dust collecting body 20, and the large-sized crushed particles are filtered through the filter pipe 50. ) To prevent damage to the dust collection filter in the dust collection body by the sharp edges of the crushed particles.

In addition, the filter tube 50 can easily separate the filter cover 52 by the locking device 54 to discharge grains collected therein or facilitate replacement of the damaged net filter 53. have.

In addition, although the mesh filter is illustrated in a circular shape, it may be configured in a square shape, and durability may be further improved by forming the mesh body part with a metal thread.

Meanwhile, as shown in FIG. 4, the dust collecting apparatus 10 of the present invention may be provided in a structure in which only the suction fan 22 is provided in the dust collecting body 20 so that dust filtering is performed through the filter pipe 50.

The filter tube 50 is provided with a multi-stage net filter, but one or two net filters at the rear end may be equipped with a filter having a function of filtering dust, so that the filter tube 50 itself can remove dust.

Here, the filter tube 50 is equipped with a mesh filter having a large hole at the front end of the inlet side to filter the crushed particles, and a net filter having a small hole at the rear end side at the discharge side of the filter tube to filter the dust. It is provided in the form of

If configured as described above, even if the dust collecting filter 21 is provided in the dust collecting body 20, the filtered air flows in as much as possible from the filter pipe 50, thereby minimizing the use of the filter function of the dust collecting filter and extending the service life. .

The dust collecting device 10 configured as described above can increase the dust removal efficiency by replacing and additionally installing only the suction line and the filter pipe while using the existing dust collecting device as it is.

Particularly, by attaching the dust suction fixture 30 with a suction port in the hand of the worker holding the grinder, it is possible to easily collect the dust generated during the grinding work, and prevent injury to the worker's hand by the crushed particles sucked by the shear protection unit. can do.

Accordingly, it is possible to provide a device capable of improving the working environment and promoting the health of workers by removing a large amount of dust generated during indoor polishing in advance.

10: dust collector
20: dust collecting body
21: dust collection filter 22: suction fan
30: Dust suction fixture
31: fixed body 32: suction pipe part
33: fixed belt
311: shear protection part 321: inlet
40: suction transfer pipe
50: filter tube
51: filter body 52: filter cover
53: net filter 54: locking device
511: filter coupling groove 531: packing part
532: mesh body

Claims (7)

In the dust collecting device for grinding work that sucks and collects dust,
A dust collecting body 20 having a dust collecting filter 21 installed therein to separate and collect dust contained in the suction air and discharge the air; A dust suction fixture 30 having a dust suction port 321 and mounted on a worker's hand or wrist; Consists of including; a suction and transfer pipe 40 for transferring the air containing the inhaled dust to the dust collecting body by connecting the dust suction fixture 30 and the dust collecting body 20,
The dust suction fixture 30,
An arc-shaped shear protection part 311 that is seated on the upper part of the operator's hand and extends forward and downward is formed at the front end to cover the front part of the operator's hand holding the grinder handle to prevent the inhaled crushed particles from colliding with the operator's hand. A plate-shaped fixed body 31;
A suction pipe part 32 formed on the upper part of the fixed body, wherein a suction port 321 for sucking air is formed at a front side and a suction pipe 32 at the rear thereof;
A dust collecting device for grinding work having a hand-mounted dust inlet, comprising: a fixing belt (33) having one end attached to the fixed body and fixing the other end to the operator's hand, wrist, or arm. The method of claim 1,
The dust suction fixture 30,
A dust collecting device for polishing work having a hand-mounted dust inlet, characterized in that it is formed in a curved surface in the width direction to surround a hand, and has ventilation by forming a plurality of air passages on the inner surface. delete delete The method according to claim 1 or 2,
A dust collecting device for polishing work having a hand-mounted dust suction port, characterized in that a filter pipe 50 is further mounted between the suction and transfer pipe 40 and the dust collecting body 20 to prevent the crushed particles from flowing into the dust collecting body. The method of claim 5,
The filter tube 50,
A filter body 51 having a filter coupling groove 511 formed on the inner surface in a direction orthogonal to the axial direction, and opening one side thereof;
A mesh filter 53 comprising an annular packing portion 531 fitted into the filter coupling groove of the filter body through the open portion of the filter body, and a mesh body portion 532 disposed inside the packing portion;
A filter cover 52 that is inserted into the open portion of the filter body to close the interior thereof;
A dust collecting device for grinding work having a hand-mounted dust suction port, comprising: a locking device 54 for detachably coupling the filter body 51 and the filter cover 52 to each other. The method of claim 6,
Inside the filter tube 50, a plurality of mesh filters 53 are installed in the axial direction, and the pore size of the mesh body is gradually reduced from the air inlet side to the discharge side to sequentially separate the crushed material particles or dust by size. A dust collecting device for grinding work having a hand-mounted dust inlet, characterized in that filtering is performed.

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