KR20150000176A - A Filter Structure with Cap Nut - Google Patents

A Filter Structure with Cap Nut Download PDF

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Publication number
KR20150000176A
KR20150000176A KR1020130072242A KR20130072242A KR20150000176A KR 20150000176 A KR20150000176 A KR 20150000176A KR 1020130072242 A KR1020130072242 A KR 1020130072242A KR 20130072242 A KR20130072242 A KR 20130072242A KR 20150000176 A KR20150000176 A KR 20150000176A
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KR
South Korea
Prior art keywords
cap
filter
cap nut
hole
shape
Prior art date
Application number
KR1020130072242A
Other languages
Korean (ko)
Inventor
김기호
오정원
Original Assignee
한솔신텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한솔신텍 주식회사 filed Critical 한솔신텍 주식회사
Priority to KR1020130072242A priority Critical patent/KR20150000176A/en
Publication of KR20150000176A publication Critical patent/KR20150000176A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The present invention relates to a filter structure for a dust collecting device with cap nuts, which is made by an upper cap (120) connected to the upper end part of the filter (110); a lower cap (130) connected to the lower end part of the filter (110); and through-holes formed on the center of the upper cap (120). The filter structure comprises a connection body (140) which has a fixed length to connect the lower cap (130), the hollow part of the filter (110) and the upper cap (120) by penetrating the same at once wherein the upper end part of the connection body (140) has a bolt (142) with a screw thread. The bolt (142) of the connection body (140) is protruded through the through-holes of the upper cap (120) and has a cap nut (210) which is attached and detached to the bolt (142) by inserting from an upward direction to a downward direction.

Description

Technical Field [0001] The present invention relates to a filter structure for a dust collecting apparatus having a cap nut,

In particular, the present invention relates to a filter structure for a dust collecting apparatus, and more particularly to a filter structure for a dust collecting apparatus, in which a bullet-shaped cap nut is detachably attached to a longitudinal connecting member protruding in a vertical direction in a central portion of a venturi, and compressed air injected from an external air- And a cap nut for transmitting the pressure of the compressed air to the inner lower end of the filter while flowing along the groove formed on the outer surface.

Generally, a dust collector is installed in various industrial processes where dust and dust are generated in a large amount, and collects and separates fine dust and pollutants in the air by a filter.

The filter of the dust collector accumulates dust accumulated on the filter cloth or the surface of the filter when the dust generated in the factory or the work site is used for a long period of time. As a result, the flow rate of the filter is slowed, the pressure loss is increased, The dust collecting function of the filter is deteriorated.

Therefore, the dust collector must remove the dust accumulated in the filter in order to maintain the performance of the dust collector. The method of removing accumulated dust is to inject compressed air into the filter through a pulse device in a short period of time, apply pressure to the dust attached to the filter to release the dust, and discharge the dust through the lower discharge device.

When the dust collector continuously performs the dust collecting function of the filter, the venturi is installed between the nozzle and the inlet of the filter in order to efficiently exhaust dust and transmit a large amount of compressed air to the filter surface.

The venturi is a part that acts to increase the flow rate by converting the pressure energy of the air injected from the nozzle into kinetic energy.

This venturi increases the effect of increasing the flow rate by sucking the ambient air with the pressure reduced by Bernoulli's law.

FIG. 1 is a perspective view showing a filter structure for a dust collecting apparatus according to the related art, and FIG. 2 is an exploded perspective view showing a filter structure for a dust collecting apparatus according to a related art.

The filter structure 100 for a dust collecting apparatus according to the related art includes a filter 110, an upper cap 120 mounted on an upper end of the filter 110, a lower cap 130 mounted on a lower end of the filter 110, The venturi 180 is mounted on the upper cap 120 of the cabinet 110. And a connecting body 140 having a predetermined length for integrally connecting the lower cap 130 and the hollow portion of the filter 110, the upper cap 120, and the venturi 180.

The upper cap 120 is formed with a through hole and a hole 124 through which the coupling body 140 is inserted and a support 122 connected to the inner surface of the upper cap 120 in a horizontal direction is formed do.

The connector 140 is inserted into the hole 124 of the support body 122 and is mounted on the upper surface of the hole 124 with a washer 150 for fixing the upper cap 120 and the connector 140 A spring 160 is formed on the upper surface of the washer 150, and a nut 170 is formed thereon. That is, the nut 140, the spring 160, and the washer 150 are integrally fitted to each other after passing through the hole 124 of the support body 122.

A bolt 142 including a screw thread is formed at the upper end of the connector 140.

The longitudinal connecting member 140 is vertically formed so as to pass through the upper cap 120 through the hollow portion of the filter 110 from the lower cap 130. That is, the connector 140 is vertically connected through the hollow portion of the filter 110, the upper cap 120, and the venturi 180 from the nut 144 formed on the outer side of the lower end of the lower cap 130 Structure.

The filter structure 100 for a dust collecting apparatus according to the related art can not receive the pressure to the inner lower end of the filter 110 when the compressed air flows in from the air injector spaced a certain distance in the upward direction, There was a problem.

1, since the bolt 142 of the connecting body 140 is protruded through the venturi 180, the filter structure 100 for the dust collecting apparatus according to the related art is provided with the compressed air The air pressure is transmitted to the venturi 180, the filter 110 and the upper cap 120 as it is when the venturi 180 and the upper cap 120 collide with the bolts 142 of the venturi 180, And a part of the compressed air can not be introduced into the filter 110 but is dispersed.

Therefore, when the compressed air introduced into the filter structure 100 for dust collecting apparatus according to the related art directly collides with the bolts 142 of the connector 140, there is a risk of device breakage and energy loss is large, The filter 110 is not sufficiently transferred to the inner lower end of the filter 110, so that the filter 110 is not partially drained.

In order to solve such a problem, the present invention is characterized in that a bullet-shaped cap nut is detachably attached to a connecting member in a longitudinal direction protruding in a vertical direction in a central portion of a venturi, and compressed air injected from an external air- And a cap nut which is connected to the connecting member inside the filter to transmit the pressure of the compressed air to the bottom of the filter while flowing along the groove formed in the filter.

According to an aspect of the present invention, there is provided a filter structure for a dust collector having a cap nut,

A lower cap 130 mounted on the lower end of the filter 110 and a through hole penetrating the center of the upper cap 120. The upper cap 120 is mounted on the upper end of the filter 110,

A connecting body 140 formed to have a predetermined length to integrally penetrate through the lower cap 130, the hollow portion of the filter 110, and the through hole of the upper cap 120; And a bolt (142)

The bolts 142 of the connector 140 protrude to the outside through the through holes of the upper cap 120 and are inserted into the bolts 142 of the connector 140 from vertically upward to downward, ).

According to the present invention, the cap nut is coupled to the filter structure, and the pressure of the compressed air injected from the external air injection device is maintained to the inner lower end of the filter to increase the exhaustion efficiency.

In the present invention, compressed air injected from an external jet air injection device flows along a groove formed on an outer surface of a cap nut, and a flow of air reaches a bottom of the filter through a connection member inside the filter, There is an effect of increasing the efficiency.

1 is a perspective view showing a filter structure for a dust collector according to the prior art.
2 is an exploded perspective view showing a filter structure for a dust collector according to the prior art.
3 is a perspective view illustrating a filter structure for a dust collector having a cap nut according to an embodiment of the present invention.
4 is an exploded perspective view illustrating a filter structure for a dust collector having a cap nut according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a filter structure for a dust collector having a cap nut according to an embodiment of the present invention.
6 is a cross-sectional view illustrating the flow of air in a filter structure for a dust collector having a cap nut according to an embodiment of the present invention.
7 is an enlarged cross-sectional view of a cap nut portion in a filter structure for a dust collector according to an embodiment of the present invention.
8 is a perspective view illustrating a cap nut according to an embodiment of the present invention.
FIG. 9 is a top view of a cap nut according to an embodiment of the present invention.
10 is a perspective view illustrating a cap nut according to another embodiment of the present invention.
11 is a perspective view illustrating a cap nut according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIG. 3 is a perspective view illustrating a filter structure for a dust collector having a cap nut according to an embodiment of the present invention, FIG. 4 is an exploded perspective view illustrating a filter structure for a dust collector having a cap nut according to an embodiment of the present invention And FIG. 5 is a cross-sectional view illustrating a filter structure for a dust collecting apparatus having a cap nut according to an embodiment of the present invention. FIG. 6 is a cross-sectional view of a filter structure for a dust collector having a cap nut according to an embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a cap nut portion in a filter structure for a dust collecting apparatus according to an embodiment of the present invention, FIG. 8 is a perspective view showing a cap nut according to an embodiment of the present invention, Is a top view of a cap nut according to an embodiment of the present invention.

Hereinafter, description of the same components as those of the filter structure 100 for a dust collector according to the prior art shown in FIGS. 1 and 2 will be omitted and differences will be mainly described.

The filter structure 200 for a dust collecting apparatus according to an embodiment of the present invention includes a filter 110, an upper cap 120 mounted on an upper end of the filter 110, a lower cap 130 mounted on a lower end of the filter 110, And the venturi 180 is mounted on the upper cap 120 of the filter 110. And a connecting body 140 having a predetermined length for integrally connecting the lower cap 130 and the hollow portion of the filter 110, the upper cap 120, and the venturi 180.

The filter structure 200 for the dust collecting device is formed such that the bolt 142 of the connector 140 protrudes through the venturi 180 side.

The upper cap 120 includes a hole 124a through which a through hole is formed at the central portion and at least one support body 122a is formed in the through hole in a horizontal direction and a coupling body 140 is inserted between the support body 122a and the support body 122a, .

The upper cap 120 may have various shapes such as a T structure, a Y structure, and a shape integrally formed with the venturi 180.

The supporting body 122a of the upper cap 120 may be formed in various shapes such as a straight, oblique, and twisted shape (impeller, propeller), and the number of the supporting bodies 122a may be one or more.

3 and 4, the cap nut 210 of the embodiment of the present invention is fitted and detached in the downward direction from the vertical direction of the bolt 142 of the protruding connector 140. As shown in FIG.

The cap nut 210 is made of aluminum, non-ferrous metal, stainless steel, galvanized steel, plastic (including reinforced plastic) and is manufactured by injection molding with aluminum die casting. Increase.

The cap nut 210 has a cone shape and includes an inclined portion 211 having a warhead shape in the form of a streamlined shape whose diameter gradually increases from the upper end portion to the lower end portion and narrows again at the lower end portion, The lower surface of the inclined portion 211 is opened to form the insertion groove 213 and the predetermined space portions 215 and 216 are formed in the inclined portion 211.

The cap nut 210 is not limited to a cone shape, and any shape can be used as long as the flow of the introduced compressed air is induced or amplified.

The predetermined space portion 215 and 216 are formed in a lower space portion 215 into which a bolt 142 to which the spring 160 and the nut 170 are coupled is inserted into the region where the bolt 142 of the connector 140 is inserted, And an upper space portion 216 communicating with the lower space portion 215 and having an end portion of the bolt 142 inserted therein.

The lower space portion 215 forms a space corresponding to the size of the nut 170 and the upper space portion 216 forms a space corresponding to the size of the bolt 142.

A thread groove 217 is formed along an inner side edge of the upper space portion 216. [

The inclined portion 211 has a plurality of cap nut grooves 212 formed at intervals of a predetermined distance along the outer edge of the streamlined shape,

The cap nut 210 is configured such that the compressed air introduced from the external air injection device flows along the inclined portion 211 and the cap nut groove 212 of the cap nut 210 by the Coanda effect, And the pressure of the compressed air is transmitted to the bottom of the filter 110.

When the high-speed and high-pressure compressed air is introduced and dispersed, the inclined portion 211 generates shock waves and forms a downward flow to reach the bottom of the filter 110, thereby enhancing the discharge effect.

The inclined portion 211 has a streamlined shape such as a bullet shape and a shell shape of a shell, the diameter of which gradually increases in a downward direction, that is, in a flow direction of the fluid.

The inclined portion 211 generates a Coanda effect in which the inflowing compressed air flows on the surface. This Coanda effect indicates a tendency of the fluid to cling to or hugging on the surface as it flows through the curved surface.

Particularly, in the cap nut groove 212 of the inclined portion 211, the air impinging on the upper end of the inclined portion 211 is rapidly introduced into the narrow space, and the pressure is applied, and the air compressed by this pressure is amplified It goes down rapidly in the downward direction.

At this time, air flowing on the surface of the inclined portion 211 sucks air around the inclined portion 211 at a high speed.

The external air injection device is located vertically above the cap nut 210 and is spaced apart from the cap nut 210. Compressed air is injected in a downward direction from the air injection device and collides with the cap nut 210.

The air impinging on the cap nut 210 flows along the surface of the inclined portion 211 and the air flow is amplified. When the air flows into the cap nut groove 212 of the inclined portion 211, The flow rate of the compressed gas is further increased and injected into the interior of the filter 110.

As shown in FIG. 6, the flow of the compressed air with the increased flow rate is amplified by the Coanda effect, so that energy and pressure are applied to the lower portion of the filter 110 along the connection member 140 inside the filter 110 .

In order to uniformly inject the compressed air flowing into the incline part 211, the upper end of the bullet and the shell are formed in the shape of a warhead, and the curved surface must be gentle so as to maximize the coanda effect.

The cap nut 210 functions to increase the pressure and the straightness of the air flowing into the filter 110 and rapidly inject the air into the bottom surface of the filter 110.

As shown in FIGS. 6 and 8, the cap nut 210 has a shape in which the diameter of the cap nut 210 gradually increases from the upper end of the cap nut 210 to the lower end of the cap nut 210, So that the speed is amplified while flowing along the surface of the cap nut groove 212.

The cap nut 200 is mounted on the upper surface of the support body 122a of the upper cap 120 and the hole 124a.

The cap nut 200 may be mounted on and coupled to the upper cap 120. The cap nut 200 may be mounted on the upper cap 120 and the venturi 180, And may be installed in one of the spanning portions.

In addition, the cap nut 200 may be attached to the upper cap 120 or the venturi 180 during the manufacture of the mold, not in a detachable form.

The lower surface of the cap nut 210 abuts the hole 124a of the upper cap 120. Here, the lower end of the cap nut 210 and the hole 124a of the upper cap 120 are formed in a tapered shape having a wide upper portion and a narrower lower portion.

The lower end of the cap nut 210 is mounted so as to abut the upper surface of the hole 124a of the upper cap 120. [

The air impinging on the cap nut 210 flows along the surface of the inclined portion 211 and flows into the connecting body 140 along the tapered shape of the lower end of the inclined portion 211 and the hole 124a of the upper cap 120 And is transmitted to the inner bottom of the filter 110 along the connector 140.

The bolt 142 is formed in a straight shape at an upper end of the connecting body 140 of the present invention and the lower portion of the bolt 142 is formed in a shape of a straight line, a slant line, a curved line, or a twisted line .

The air impinging on the cap nut 210 moves to the inner lower end of the filter 110 while maintaining the straightness due to the structure of the cap nut 210 and the hole 124a of the upper cap 120, So that it is exhausted.

The air flowing into the filter 110 is gradually exhausted to the upper portion of the filter 110 due to the air pressure accumulated at the lower end of the filter 110.

Accordingly, the improved structure of the cap nut 210 is to transfer pressure from the inner bottom of the filter 110 to the inner upper end of the filter 110 so as to drain.

When the compressed air flowing from an external air injection nozzle (not shown) is struck, the upper end portion of the inclined portion 211 is formed into a pointed mountain shape, The flow rate of compressed air is rapidly increased.

As shown in FIG. 10, the inclined portion 211 has a plurality of cap nut grooves 212, each of which has a predetermined depth in a spiral shape, at intervals of a predetermined distance along the outer edge.

The spiral-shaped cap nut groove 212 is formed in a direction in which the airflow is rotated in the direction of the air impinging on the surface of the inclined portion 211, and the rotated compressed air is introduced into the filter 110 Thereby improving the straightness of the air.

As shown in FIG. 11, the inclined portion 211 has a plurality of grooved grooves 212 that are narrowed from the upper portion to the lower portion and then widened again after passing through the narrowed portion. .

The air impinging on the cap nut 210 passes through the narrowed path of the cap nut groove 212 and receives a strong pressure to move to a path where the flow velocity is increased and then expanded again to form a strong air flow.

A method of joining the cap nut 210 in the vertical upper portion of the venturi 180 according to the embodiment of the present invention will be described as follows.

The longitudinal coupler 140 is engaged with a hole formed at the center of the lower cap 130 coupled to the lower end surface of the filter 110 and is tightened with the nut 144 from the outside of the lower cap 130. Thus, the connector 140 is vertically erected at the center of the inner space of the filter 110 and is exposed to the outside through the upper open end of the filter 110.

An upper gasket 126, which is a sealing member, is mounted on the upper end surface of the filter 110, and then the upper cap 120 is mounted thereon. The upper gasket 126 prevents abrasion or damage due to friction on one side edge of the upper cap 120 and the venturi 200 abutting against each other.

A lower gasket 132 is inserted into the lower end surface of the lower cap 130 and the filter 110.

The upper gasket 126 and the lower gasket 132 may be made of at least one material selected from the group consisting of silicon, rubber, nonwoven fabric, ceramic pad, and mica pad, and any material can be used as long as heat resistance and corrosion resistance can be ensured.

The upper cap 120 is mounted on the upper end surface of the filter 110 by inserting the coupling member 140 of the filter 110 through the hole 124 formed in the central portion.

4 to 6, the connector 140 is vertically installed through the hole 124 of the upper cap 120 and is connected to the upper end of the washer 150, the spring 160, And the nut 170 are inserted in this order.

The cap nut 210 is inserted into the bolt 142 of the connecting body 140 protruding through the venturi 180 from the vertical direction to the downward direction, (122a) and the hole (124a).

Specifically, the lower surface of the cap nut 210 is positioned so as to abut the hole 124a of the upper cap 120.

When the cap nut 210 is mounted on the support body 122a and the hole 124a of the upper cap 120, the spring 160 and the nut 170 are inserted into the lower space portion 215 of the cap nut 210 .

When the cap nut 210 is rotated in the clockwise direction, the bolt 142 of the coupling member 140 is screwed into the screw groove 217 formed in the upper space portion 216 of the cap nut 210, Is fixed to the upper cap 120 of the filter 110. [

The embodiments of the present invention described above are not implemented only by the apparatus and / or method, but may be implemented through a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: Filter structure 110: Filter
120: upper cap 122, 122a: support
124, 124a: hole 126: upper gasket
130: Lower cap 132: Lower gasket
140: connector 142: bolt
144: Nut 150: Washer
160: spring 170: nut
180: Venturi 182: Venturi mounting groove
200: Filter structure 210: Cap nut
211: inclined portion 212: cap nut groove
213: insertion groove 215: lower space portion
216: upper space portion 217: screw groove

Claims (10)

A filter structure for a dust collecting apparatus for collecting and collecting dust and dust contaminants by a filter,
A lower cap 130 mounted on a lower end of the filter 110 and a through hole penetrating the center of the upper cap 120. The upper cap 120 is mounted on an upper end of the filter 110,
A connection member 140 formed to have a predetermined length to integrally penetrate through the lower cap 130, the hollow portion of the filter 110, and the through hole of the upper cap 120; The upper portion including a threaded bolt 142,
The bolt 142 of the connector 140 protrudes to the outside through the through hole of the upper cap 120 and is inserted into the bolt 142 of the connector 140 in a vertically- A filter structure for a dust collecting device, comprising a nut (210). The method according to claim 1,
The cap nut 210 has an inclined portion 211 having an outer shape of a warhead shape in a streamlined shape with a diameter increasing gradually from an upper end portion of the cap nut 210 and a lower surface of the inclined portion 211 is opened The filter structure for a dust collecting apparatus forming an insertion groove (213) and forming a predetermined space part (215, 216) in the inclined part (211). The method according to claim 1,
The cap nut 210 has an inclined portion 211 having a warhead-shaped outer rim shape having a diameter gradually increasing from the upper end portion toward the lower portion,
The inclined portion (211) has a plurality of cap nut grooves (212) formed at a predetermined distance along the outer edge at a predetermined depth in the downward direction. 3. The method of claim 2,
The predetermined spaces 215 and 216 are formed in a space for inserting the bolts 142 into which the bolts 142 of the protruded coupling body 140 are inserted and into which the springs 160 and the nuts 170 are coupled, And an upper space portion 216 extending from the lower space portion 215 to receive an end portion of the bolt 142. The upper space portion 216 extends along the inner side edge of the upper space portion 216, Wherein a screw groove (217) is formed. The method according to claim 1,
The cap nut 210 has an inclined portion 211 having a warhead-shaped outer rim shape having a diameter gradually increasing from the upper end portion toward the lower portion,
The inclined portion (211) has a plurality of cap nut grooves (212) formed in a spiral shape and having a predetermined depth and formed at intervals of a predetermined distance along the outer edge. The method according to claim 1,
The cap nut 210 has an inclined portion 211 having a warhead-shaped outer rim shape having a diameter gradually increasing from the upper end portion toward the lower portion,
The inclined portions 211 further include a plurality of cap nut grooves 212 formed at intervals of a predetermined distance along an outer rim and having a depth that widens from the upper portion toward the lower portion and widens from the narrow portion, Filter structures for dust collectors. The method according to claim 1,
A venturi 180 is mounted as a through hole passing through the center of the upper cap 120,
The connecting member 140 is vertically extended from the lower surface of the lower cap 130 to the inner hollow portion of the filter 110, the upper cap 120 and the venturi 180, Lt; / RTI >
The cap nut 210 is installed in one of the parts including the upper cap 120 or the venturi 180, the upper cap 120 and the venturi 180, . The method according to claim 1,
The upper cap 120 has a central through hole and at least one support body 122a is formed horizontally in the through hole and the connection body 140 is inserted between the support body 122a and the support body 122a. A hole 124a is formed,
Wherein the outer shape of the hole (124a) is a tapered shape with an upper portion wider and narrower toward the lower portion, and the cap nut (200) is mounted to abut the upper surface of the hole (124a). The method according to claim 1,
The upper cap 120 has a central through hole and at least one support body 122a is formed horizontally in the through hole and the connection body 140 is inserted between the support body 122a and the support body 122a. A hole 124a is formed,
The cap nut 200 has a tapered shape in which the diameter of the cap nut 200 gradually increases from the upper end to the lower end of the cap nut 200 and becomes narrower at the lower end thereof and the outer shape of the hole 124a is wide, And the lower end of the cap nut (200) abuts the upper surface of the hole (124a). The method according to claim 1,
The connecting member 140 is vertically connected to the inner hollow portion of the filter 110 and the upper cap 120 through a lower surface of the lower cap 130,
The bolt 142 is formed in a straight shape at an upper end of the connection member 140 and the lower portion of the bolt 142 is formed in a shape of a straight line, a slant line, a curved line, or a twisted line A filter structure for a dust collecting device.
KR1020130072242A 2013-06-24 2013-06-24 A Filter Structure with Cap Nut KR20150000176A (en)

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Application Number Priority Date Filing Date Title
KR1020130072242A KR20150000176A (en) 2013-06-24 2013-06-24 A Filter Structure with Cap Nut

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Application Number Priority Date Filing Date Title
KR1020130072242A KR20150000176A (en) 2013-06-24 2013-06-24 A Filter Structure with Cap Nut

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KR20150000176A true KR20150000176A (en) 2015-01-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692974B1 (en) * 2016-03-24 2017-01-05 주식회사 마이크로원 Cartridge filter used in dust collector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692974B1 (en) * 2016-03-24 2017-01-05 주식회사 마이크로원 Cartridge filter used in dust collector

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