KR20220085315A - Filter Cutting Device - Google Patents

Abstract

The present invention provides a filter cutting device for cutting a sample collection filter, comprising: a handle part held in a user's hand and capable of transmitting a force in an extension direction; and a filter cutting member connected to the handle to cut the sample collection filter.

Description

Filter Cutting Device}

The present invention relates to a filter cutting device, and more particularly, to a filter cutting device for rapidly, uniformly, and accurately cutting a sample collection filter used for characterization of fine dust in the air.

Fine dust, which is the biggest social issue in recent years, is a particulate matter that floats or is blown down in the air and can cause respiratory-related diseases and, if it penetrates into blood vessels, can cause cardiovascular diseases.

Globally, the number of deaths due to air pollution is steadily increasing every year, and there is also a negative outlook that the rate of increase may increase over the next few years. Accordingly, each local government and government agencies are providing the fine dust concentration in real time by establishing a fine dust monitoring system.

In order to identify the cause of fine dust generation and establish a policy to reduce it, samples must first be collected and analyzed. According to the air pollution process test method, fine dust is collected by introducing air through the sampling equipment and analyzing the filter. In the case of fine dust, by measuring and analyzing the weight before and after the filter, heavy metals, PAHs (Polycyclic aromatic hydrocarbons), VOCs (Volatile Organic Compounds), WSOC (water soluble organic carbon), etc. can be analyzed. Usually, samples are collected after installing an 8 inch x 10 inch filter using a high volume sampler at a certain time every day. After collection, the filter is cut and used for each analysis equipment. Since the amount of sample collected from the filter is very small, it is very important to analyze the sample without error.

Therefore, it is very important to reduce the error generated in the process of cutting the filter, and the development of a filter cutting device for cutting the sample collection filter quickly, consistently and accurately is required.

Registered Patent No. 10-2008796 (2019.10.21)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a filter cutting device for quickly, uniformly, and accurately cutting a sample collection filter used for characterization of fine dust in the air.

In order to solve the above problems, a filter cutting device of the present invention is a filter cutting device for cutting a sample collection filter, comprising: a handle part held in a user's hand and capable of transmitting a force in an extension direction; and a filter cutting member connected to the handle to cut the sample collection filter.

According to an example related to the present invention, the filter cutting member is provided at an end opposite to the handle portion, and includes a cutting edge that enables the sample collection filter to be cut into a predetermined shape.

In addition, the filter cutting member may further include a cutting housing having a predetermined cross section and having a filter accommodating part therein to accommodate the sample collection filter cut by the cutting edge.

According to another example related to the present invention, the filter cutting device of the present invention is installed in the cutting housing so as to be movable relative to the cutting housing, and a filter detaching member that allows the cut sample collection filter accommodated in the filter accommodating part to be detached. may further include.

According to another example related to the present invention, the filter separation member may include: a pressure plate installed in the cutting housing to be relatively movable; a filter release bar fixedly coupled to the pressure plate and moving together with the pressure plate, the end of which is relatively moved in the filter receiving part; an elastic part disposed between the pressure plate and the cutting housing and installed on the outer periphery of the filter release rod; and a release plate coupled to an end of the filter release bar and in press contact with the cut sample collection filter to separate the cut sample collection filter.

Preferably, the predetermined cross-section may be rectangular.

In addition, the handle portion may be detachably screwed to the filter cutting member.

In addition, the filter release rod may be coupled to the pressure plate by a nut.

Preferably, the cutting edge and the filter release rod may be made of SUS (Steel Use Stainless) material.

The present invention enables the collected sample to be uniformly cut to an appropriate size without loss, thereby reducing the deviation and error of analysis data by the cut filter to ensure reliability.

Also, according to the present invention, when cutting a sample, only a sharp blade can contact the filter surface without direct contact with the filter cut using a spring.

In addition, the present invention is equipped with a handle to apply a force in the vertical direction to increase the user's convenience.

1A is a plan view showing a filter cutting device of the present invention;
1B is a side view showing the filter cutting device of the present invention;
1C is a front view showing the filter cutting device of the present invention.
Figure 2a is a photograph of the filter cutting device of the present invention viewed from the position of Figure 1a.
Figure 2b is a photograph of the filter cutting device of the present invention viewed from the position of Figure 1b.
Figure 2c is a photograph of the filter cutting device of the present invention viewed from the position of Figure 1c.
Fig. 3 is a photograph showing the inside of the filter cutting member.
4 is a photograph showing an example in which the handle part, the filter cutting member, and the filter detaching member are separated.
Fig. 5A is a side view showing the operation state of the filter detaching member before the cut filter is detached;
Fig. 5B is a side view showing an operation state of the filter detaching member after the cut filter is detached;
6 is a photograph showing a filter cut by the filter cutting device of the present invention and a filter remaining after the filter has been cut.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar reference numerals are assigned to the same or similar components, and overlapping descriptions thereof will be omitted. The suffix "part" for the components used in the following description is given or mixed in consideration of only the ease of writing the specification, and does not have a meaning or role distinct from each other by itself. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Fig. 1A is a plan view showing the filter cutting device 100 of the present invention, Fig. 1B is a side view showing the filter cutting device 100 of the present invention, and Fig. 1C shows the filter cutting device 100 of the present invention is a front view of

In addition, 2a is a photograph looking at the filter cutting device 100 of the present invention from the position of FIG. 1a, FIG. 2b is a photograph looking at the filter cutting apparatus 100 of the present invention from the position of FIG. 1b, and FIG. 2c is the present invention It is a photograph of the filter cutting device 100 viewed from the position of FIG. 1C.

Meanwhile, FIG. 3 is a photograph showing the inside of the filter cutting member 20 .

Hereinafter, the structure of the filter cutting device 100 of the present invention will be described with reference to FIGS. 1A to 3 .

The filter cutting device 100 of the present invention is a device for cutting a sample collection filter.

The filter cutting device 100 of the present invention includes a handle 10 and a filter cutting member 20 .

The handle portion 10 is gripped by the user's hand, and enables transmission of force in the extension direction.

Referring to FIGS. 1A to 2C , the handle portion 10 may be, for example, in the shape of a rod having a predetermined diameter.

In addition, as shown in the photos in Figures 2b and 2c, the handle portion 10 is preferably provided with fine protrusions to increase the friction of the portion gripped by the user's hand to prevent sliding.

The handle 10 may be detachably screwed to the filter cutting member 20 to be described later, so that the handle 10 and the filter cutting member 20 can be easily cleaned and carried.

The filter cutting member 20 is connected to the handle 10 to enable cutting of the sample collection filter.

The filter cutting member 20 may include a cutting edge 21 .

The cutting edge 21 is provided at the end opposite to the handle portion 10, and enables the sample collection filter to be cut into a predetermined shape.

The cutting edge 21 may be made of SUS (Steel Use Stainless) material to prevent contamination.

In addition, the filter cutting member 20 may further include a cutting housing 24 .

The cutting housing 24 has a predetermined cross section and has a filter receiving part 24a therein to accommodate the sample collection filter cut by the cutting edge 21 . 2C and 3 , the predetermined cross-section may be rectangular.

The filter accommodating part 24a is a space provided inside the cutting housing 24, and when the filter is cut by the cutting edge 21, it is a space in which the cut filter is located.

1C, 2C and 3 , there is shown a cutting housing 24 having an empty interior and having a filter receiving portion 24a having a rectangular shape, and a cutting edge 21 is provided at the end of the cutting housing 24 . ) is shown as an example.

The filter cutting device 100 of the present invention may further include a filter detaching member 30 .

The filter release member 30 is installed in the cutting housing 24 so as to be movable relative to the cutting housing 24 , and allows the cut sample collection filter accommodated in the filter receiving part 24a to be removed.

For example, referring to FIGS. 1A to 3 , the filter release member 30 may include a pressure plate 31 , a filter release rod 34 , an elastic part 37 , and a release plate 38 .

The pressure plate 31 is installed to the cutting housing 24 to be relatively movable.

Referring to FIGS. 1A and 2A , the pressure plate 31 may be a plate in the shape of "A" extending in two directions so that the user can easily press it.

The filter release rod 34 is fixedly coupled to the pressure plate 31 and moves together with the pressure plate 31 , and the end of the filter release rod 34 moves relative to the filter receiving part 24a to separate the filter.

In addition, the filter release rod 34 may be installed so that the lower side is penetrated from the top of the cutting housing 24 so that it can move inside the cutting housing 24 .

The filter release rod 34 may be, for example, coupled to the pressure plate 31 by a nut 34a to be easily detachable.

1c and 2c, one side of the filter release rod 34 is fixedly coupled to the pressure plate 31, and the other side, the lower side, is installed so as to penetrate from the top of the cutting housing 24 is shown.

The filter release rod 34 may be made of SUS (Steel Use Stainless) material to prevent contamination.

Referring to FIGS. 1C and 2C , the elastic part 37 is disposed between the pressing plate 31 and the cutting housing 24 , and is installed on the outer periphery of the filter release rod 34 .

For example, as shown in FIGS. 1C and 2C , the elastic part 37 may be a spring.

The release plate 38 is coupled to the end of the filter release rod 34 and comes into press contact with the cut sample collection filter to separate the cut sample collection filter.

3 shows an example in which the release plate 38 is disposed in the filter receiving portion 24a of the cutting housing 24 .

4 is a photograph showing an example in which the handle portion 10, the filter cutting member 20, and the filter detaching member 30 are separated.

As shown in FIG. 4 , the handle 10 may be detachably screwed to the filter cutting member 20 and the filter separating member 30 , so that the handle 10 and the filter cutting member 20 are separated from each other. It can be easily washed and carried.

5A is a side view illustrating an operation state of the filter detaching member 30 before the cut filter is removed, and FIG. 5B is a side view illustrating an operational state of the filter detaching member 30 after the cut filter is detached.

An example of cutting a filter by the filter cutting device 100 of the present invention will be described with reference to FIGS. 5A and 5B .

The cutting edge 21 of the filter cutting device 100 of the state shown in FIG. 5A is positioned at a position to cut the filter, and the filter is cut.

Thereafter, the cut filter is placed in the filter receiving portion 24a in the cutting housing 24 of the filter cutting device 100 .

In this state, although not shown in FIG. 5A , the cut filter is spaced apart from the separation plate 38 of the filter separation member 30 .

Then, as shown in FIG. 5B, the user presses the pressure plate 31 of the filter release member 30 in the direction of the arrow, and the filter cut by the release plate 38 connected to the filter release rod 34 is accommodated in the filter. It is separated from the cutting housing 24 in the direction of the arrow from the portion 24a.

When the user releases his/her hand from the pressure plate 31 of the filter release member 30, the pressure plate 31 and the filter release rod 34 and the release plate 38 connected thereto by the elastic force of the elastic part 37 are shown in Fig. It returns to the original position of 5a.

6 shows the filter cut by the filter cutting device 100 of the present invention and the filter remaining after the filter is cut.

The filter cutting apparatus 100 of the present invention described above is not limited to the configuration and method of the above-described embodiments, but all or part of each embodiment is selectively combined so that various modifications can be made. it might be

It is apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

100: filter cutting device
10: handle part
20: filter cutting member 21: cutting edge
24: cutting housing 24a: filter receiving part
30: filter separation member 31: pressure plate
34: filter release rod 34a: nut
37: elastic part 38: release plate

Claims (9)

A filter cutting device for cutting a sample collection filter, comprising:
a handle part gripped by the user's hand and capable of transmitting a force in an extension direction; and
and a filter cutting member connected to the handle to cut the sample collection filter.
According to claim 1,
The filter cutting member is provided at an end opposite to the handle, the filter cutting device comprising a cutting edge for cutting the sample collection filter into a predetermined shape.
3. The method of claim 2,
The filter cutting member may further include a cutting housing having a predetermined cross-section and having a filter accommodating part therein to accommodate the sample collection filter cut by the cutting edge.
4. The method of claim 3,
Filter cutting device according to claim 1, further comprising a filter detaching member installed on the cutting housing so as to be movable relative to the cutting housing and allowing the cut sample collection filter accommodated in the filter accommodating part to be detached.
5. The method of claim 4,
The filter release member,
a pressure plate installed to be movable relative to the cutting housing;
a filter release bar fixedly coupled to the pressure plate and moving together with the pressure plate, the end of which is relatively moved in the filter receiving part;
an elastic part disposed between the pressure plate and the cutting housing and installed on the outer periphery of the filter release rod; and
and a release plate coupled to an end of the filter release rod and pressed into contact with the cut sample collection filter to separate the cut sample collection filter.
4. The method of claim 3,
The predetermined cross section is a filter cutting device, characterized in that the rectangular.
According to claim 1,
The filter cutting device, characterized in that the handle part is screw-coupled to the filter cutting member detachably.
6. The method of claim 5,
The filter separation rod is a filter cutting device, characterized in that coupled to the pressing plate by a nut.
6. The method of claim 5,
Filter cutting device, characterized in that the cutting edge and the filter release bar is made of SUS (Steel Use Stainless) material.

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