KR102137536B1 - Dust collector used for air gun to prevent scattering of foreign matter - Google Patents

Abstract

The present invention relates to a dust collecting apparatus used for an air gun to prevent scattering of a foreign material, which is improved to prevent the foreign material scattering in the reverse direction of spray of compressed air when the air gun is used and at the same time to automatically collect the scattered foreign material in one place. The present invention comprises: a scattering prevention unit (10) including an upper cut-off surface unit (11) having a central coupling member (14) of a rubber material coupled to the center portion, a lower inlet hole (12) provided corresponding to a lower side of the upper cut-off surface unit (11), and a flow space unit (13) provided between the upper cut-off surface unit (11) and the lower inlet hole (12); and a dust collection inducing unit (20) including an edge movement path (21) provided at an edge side to communicate with the flow space unit (13) and having a ″⊃″ shaped cross section and the outer peripheral surface in a circumferential shape, a plurality of upright guide pieces (22, 22′) erected under the upper cut-off surface unit (11) within the edge moving path (21), and a plurality of radial moving paths (23) provided between the plurality of upright guide pieces (22, 22′) such that reversely blown scattered compressed air mixed with a foreign material induced into the flow space unit (13) moves to be induced in the direction of the edge moving path (21) and moves to be induced in the direction of one discharge hole (25) along the circumferential edge movement path (21).

Description

Dust collector used for air gun to prevent scattering of foreign matter

The present invention relates to a dust collecting device for preventing foreign matter scattering that is mounted and used on an air gun, and more specifically, prevents foreign matter from being scattered in the reverse direction in which compressed air is sprayed when the air gun is used, while scattering foreign matter can be collected in one place. The present invention relates to a dust collecting device for preventing foreign matter scattering for an improved air gun.

A foreign material scattering prevention device for air guns as described in the patent literature of the prior art document is disclosed, but since it is simply in the form of a cone, foreign matter scattering upwards does not directly contact the worker, and enters the scattering prevention device. There is a disadvantage that foreign substances come out again and fly around.

Therefore, the above-mentioned prior art not only has a problem for health by the worker inhaling it when the foreign matter is a fine dust, but also as the foreign matter flying around inside the shatterproof device scatters around and sits down on other surrounding products, It is accompanied by problems such as the need to clean.

KR 10-2012-0002388 A 2012.01.05

The present invention is intended to provide an improved foreign matter scattering prevention and dust collecting device for an air gun that prevents foreign matter from being scattered in the reverse direction in which compressed air is injected when the air gun is used, and allows foreign matter to be scattered automatically in one place. .

Another object of the present invention is to ensure that the scattered foreign matter is collected in one place, thereby improving work simplicity and work efficiency, not only promoting a clean working environment, but also preventing damage to respiratory health.

The present invention, the upper blocking surface portion of which the central binding member of the rubber material is coupled to the center, a lower inlet hole (12) provided correspondingly to the lower portion of the upper blocking surface portion, the flow provided between the upper blocking surface portion and the lower inlet hole A scattering prevention unit having a space portion and an edge movement path provided in an outer portion in communication with the flow space portion and having an outer circumferential shape having a circumferential shape and a cross section having a “⊃” shape, and standing in a downward direction from the inside of the edge movement path to the upper blocking section It is provided with a plurality of standing guide pieces and a plurality of radial moving passages provided between the plurality of standing guide pieces, so that the reverse air scattering compressed air mixed with foreign matter flowing into the flow space part is moved to be guided in the direction of the edge moving direction. It is characterized in that it is configured to include a dust collecting induction part to be guided and moved in the direction of one discharge hole along the circumferential rim moving path.

The present invention is the upper blocking surface portion and the upper blocking surface portion having a central binding member of a rubber material having a diffusion-inducing curved surface portion, and an induction curved surface forming a downwardly curved surface at the center to which the central binding member is coupled. A lower inflow hole provided correspondingly toward the side, a scattering prevention portion having a flow space portion provided between the upper blocking surface portion and the lower inflow hole, and an outer circumferential surface having a circumferential shape and having a circumferential shape in communication with the flow space portion. "It has a rim moving path having a shape, a plurality of standing guide pieces which are provided to stand in the lower direction of the upper blocking section inside the rim moving path, and a plurality of radial moving paths provided between the plurality of standing guide pieces. , Includes a dust induction unit to move the reverse air scattering compressed air mixed with foreign matter flowing into the flow space portion to be guided in the direction of the rim movement path and to be guided in the direction of one discharge hole along the circumferential rim movement path. There is a locking jaw part inserted into the inflow hole and engaged with the upper end of the outflow prevention standing piece, and there is a telescopic wrinkle part in which a plurality of annular protrusions and an annular groove part alternately in the vertical direction toward the lower portion of the locking jaw part, and the lower outer peripheral edge of the elastic wrinkle part It is characterized in that it is made to include a bottom-adhesive piece portion and a bellows-type back wind guide means configured to have a back wind guide passage therein.

The standing induction piece is integrally formed so as to have an inner end portion proximate the central binding member and an outer end portion proximate to the edge moving path and having a bow-shaped discharge direction curved surface curved in the ejection hole direction, thereby causing a reverse wind in the radial movement furnace. Another feature is that the scattered compressed air is configured to be guided to be guided in the direction of the rim moving path to be guided to be delivered in the direction of the discharge hole along the rim moving path.

The standing induction piece is characterized in that it is configured such that a plurality of standing induction pieces are symmetrically arranged on both sides based on the center line of the foreign material movement direction connecting the center of the central binding member and the discharge hole, and are provided at equal intervals.

The upper blocking surface portion has an induction curved surface portion forming a curved surface downwardly from the center to all directions, and the reverse air scattering compressed air flowing from the lower inflow hole to the lower portion of the central binding member coupled to the center of the upper blocking surface portion is diffused in all directions. Another feature is to be configured to have a diffusion-inducing curved surface.

The diameter of the circumferential movement path in the circumferential shape is formed to be relatively larger than the diameter of the lower inflow hole, and the lower movement prevention portion is provided at the lower side of the lower movement path, or the fluid space portion at the inner end of the lower movement prevention portion. Another feature is that the outflow prevention standing piece integrally formed upwardly in the direction is configured to be further extended and provided.

The present invention has an effect of providing a dust collecting device for preventing foreign matter scattering for an air gun capable of automatically collecting dust in a single place while preventing foreign matter from being scattered in cleaning foreign matter by using compressed air injected from an air gun. have.

In addition, the present invention eliminates the need to clean the cleaned product by scattering foreign substances into one place, which improves work simplicity and improves work efficiency, as well as promotes a clean working environment and prevents respiratory health damage. It will provide.

1 is a use state of the dust collecting device for preventing foreign matter scattering in Example 1 of the present invention,
Figure 2 is an overall perspective view of a dust collecting device for preventing foreign matter scattering according to an embodiment of the present invention,
Figure 3 is a cross-sectional configuration of the line W-W' of Figure 2,
Figure 4 is a cross-sectional configuration of the X-X' line of Figure 3,
Figure 5 is a cross-sectional configuration of the Y-Y' line of Figure 4,
Figure 6 is a perspective view of a separated state for explaining the state constituted by dividing the present invention in two equal parts,
7 is an overall cross-sectional configuration of a dust collecting device for preventing foreign matter scattering according to another embodiment of the present invention,
Figure 8 is a cross-sectional configuration of the Z-Z' line of Figure 7,
9 is an overall perspective view of a dust collecting device for preventing foreign matter scattering according to a second embodiment of the present invention,
10 is a perspective view of a half-section state showing a reverse wind guide means according to the present invention.

The present invention will be described in more detail on the basis of the attached preferred embodiments.

Referring to Figures 1 to 3, the present invention is a rubber material and the central blocking member 14 having an injection through-hole 14a, which is coupled to the center, and an upper blocking surface portion 11 and the upper blocking surface portion 11 A scattering prevention unit 10 having a lower inlet hole 12 and a flow space portion 13 provided between the upper blocking surface portion 11 and the lower inlet hole 12 is provided.

In addition, the present invention is provided with a dust collecting induction part 20 to collect dust by collecting foreign substances flowing into the flow space part 13 through the lower inlet hole 12 as described above.

As shown in FIGS. 2 to 5, the dust collecting induction part 20 is provided toward the outer part in communication with the flow space part 13 and includes a circumferential frame moving path 21.

In addition, as shown in FIG. 4, the diameter of the circumferential rim moving furnace 21 is relatively larger than the diameter of the lower inlet hole 12, and the lower shedding prevention piece portion ( 21a) is configured to be provided so that the cross-section of the rim moving furnace 21 is in a “⊃” shape.

The lower departure preventing piece portion 21a serves to block the escape of compressed air and foreign substances in the downward direction in the process of moving foreign substances along with the compressed air along the rim moving path 21.

Referring to FIG. 5, a plurality of standing guide pieces 22 and 22 ′ provided to stand in the lower direction of the upper blocking surface portion 11 from the inside of the rim moving furnace 21 are simultaneously provided with the plurality of standing guide pieces 22. , 22') are provided with a plurality of radial movement paths 23 respectively provided.

And the standing guide pieces (22,22') is provided with an inner end (22a) proximal to the central fastening member (14), and an outer end (22b) proximate to the rim moving path (21), the inner end ( 22a) and the outer end portion 22b is configured to have a bow-shaped discharge direction curved surface portion 22c curved in the direction of the discharge hole 25.

In addition, the standing guide pieces 22 and 22', as shown in FIG. 5, a plurality of standing guides based on the foreign material movement direction center line S connecting the center of the central binding member 14 and the discharge hole 25 The pieces 22 and 22' are configured to be provided at equal intervals radially while being symmetrical to both sides of the foreign material movement direction center line S.

And the present invention is configured to have a discharge hole 25 through which the foreign matter is moved and discharged to one side by the rim moving furnace 21 and the radial moving furnace 23, the flow space portion 13 and the discharge hole 25 It is preferable to be configured to be provided with a trumpet-shaped vowel hole 24 communicating with each other.

Therefore, the dust collecting device for preventing foreign matter scattering of the present invention is forced to the middle of the injection pipe (Ga) of the air gun (G) to the injection pipe through hole (14a) of the central binding member 14 of the rubber material as shown in FIG. Since it is used by being tightly fitted, it is used in a state in which the dust collecting device for preventing foreign matter scattering from the injection pipe (Ga) does not flow, and in some cases, after the injection pipe (Ga) is inserted, the injection pipe (Ga ) It may be used by fastening the nozzle (Gb) at the end.

The foreign matter scattering prevention and dust collecting device of the present invention mounted on the injection pipe (Ga) of the air gun (G) as described above is such that the entire scattering prevention part 10 and the dust collection and induction part 20 are formed of transparent plastic. By doing so, it is preferable for the operator to be able to remove the foreign matter while observing the product K positioned under the nozzle Gb through the dust collecting device for preventing foreign matter scattering with the naked eye, and as shown in the present invention. Even if the device has a wide shape, the foreign matter scattering prevention and dust collecting device is visible, so it is possible to remove the foreign matter while looking at the product K with the naked eye, thereby facilitating convenient and easy foreign matter removal.

Therefore, the present invention, as shown in one embodiment in Figure 1, for example, when removing the screw chip (not shown) that remains in the screw groove hole (Ka) of the product (K) nozzle (Gb) of the injection pipe (Ga) ) Is inserted into the thread groove hole (Ka) to operate the air gun (G) so that compressed air is ejected, so that the screw chip is threaded through the screw groove hole (Ka) with the compressed air coming back from the thread groove hole (Ka) and coming out with strong wind in the upper direction. ) To remove foreign substances (screw chips).

That is, during the removal of foreign substances, foreign substances are removed by compressed air injected from the injection pipe (Ga) of the air gun (G). At this time, the compressed air hits the product (K), so compressed air is compressed in the reverse direction of the injection direction. Since the air is returned and blown, the foreign matter is not only scattered with compressed air blown in the reverse direction, but also the foreign matter is scattered toward the operator.

On the other hand, in order to help the understanding of the present invention, as described above, the strong wind blown from the injection tube (Ga) hits the product (K) and returns to the reverse direction and blows strong wind to be called scattered compressed air. It will be explained.

Accordingly, since the reverse air scattering compressed air that hits the product K and blows back in the reverse direction is blown toward the lower inflow hole 12, the reverse wind scattering compressed air containing foreign matter flows into the flow space part 13 Becomes.

In addition, since the reverse air scattering compressed air flowing into the inflow space part 13 together with the foreign material hits the upper blocking surface part 11 and becomes blocked, the foreign material is blocked from being scattered outside.

In addition, the reverse air scattering compressed air hits the upper blocking surface portion 11 and is no longer diffused to the outside, so that only the inside of the flow space portion 13 is diffused in all directions, as shown by the arrow in FIG. 5 Compressed air is guided by a plurality of standing guide pieces 22 and 22', and is brought into a state of being transported along the radial moving furnace 23 toward the rim moving furnace 21, whereby a plurality of standing guide pieces 22 and 22' Because it is in the state of being curved in the direction of the discharge hole 25, the reverse air scattering compressed air transferred from the radial movement path 23 to the edge movement path 21 is guided in the direction of the discharge hole 25 in the circumferential edge movement path 21. It will be in a state of being transported.

That is, the inner end portion (22a) and the inner end portion (22a) adjacent to the central fastening member 14 of the standing guide pieces (22,22') and the outer edge portion (22b) adjacent to the rim moving path (21) is provided, but the inner end ( Since there is a curved discharge direction curved surface portion 22c between the 22a) and the outer end portion 22b in the direction of the discharge hole 25, the radial movement path 23 is guided to the edge movement path 21 to be transported. The reverse air scattering compressed air is in a state to be guided in the direction of one discharge hole 25 in the circumferential rim moving furnace 21, and the discharge hole 25 has a collection bag P as shown in FIG. Alternatively, by allowing a collection cylinder (not shown) or hose (not shown) through which air can escape, the foreign matter discharged with the compressed air scattering compressed air into the discharge hole 25 is collected in one place.

That is, the present invention is a state in which the reverse air scattering compressed air, through which the foreign matter such as a screw chip that comes out from the screw groove hole (Ka) comes out, flows into the flow space part (13) through the lower inlet hole (12). By hitting the upper cut-off surface portion 11, foreign substances such as screw chips are not only prevented from scattering in all directions, but also the reverse air scattering compressed air is removed from the radial movement path 23 by a plurality of standing guide pieces 22, 22'. It is guided to be guided to the state of being gathered through the circumferential moving path 21 of the circumferential shape, and is transported and discharged in the direction of the ejection hole 25, so that the foreign matter is collected in the collection bag P.

Therefore, the present invention is because the compressed air blown through the air gun (G) hits the product (K), so that the foreign matter can be collected by using the reverse air scattering compressed air that changes in the wind direction in the reverse direction, so the middle of the injection pipe (Ga) As shown in FIG. 1, it is preferable to perform a foreign substance cleaning operation in a state where the foreign matter scattering prevention and dust collecting device mounted on the product has a distance as close as possible to the product (K) that needs to be cleaned.

On the other hand, the present invention is preferably to make the entire shatterproof portion 10 and the dust collecting induction portion 20 to be made of transparent plastic, and as shown in FIG. 6, the shatterproof portion 10 and the dust collecting induction portion 20 ) It is preferable that the upper body 1020a and the lower body 1020b, which are respectively formed by dividing them into two equal parts in the vertical direction by injection molding, are attached to each other by an adhesive.

The reason is that the upper circumferential surface 1020a and the lower body 1020b are separately injection molded to form the rim moving furnace 21 having a circumferential circumferential shape and a “⊃” cross section, as shown in FIG. 2. It is to make them integral with each other.

7 and 8 illustrate another embodiment of the present invention, and description of the same components as those of the above-described embodiment will be omitted and described.

Referring to FIG. 7, the present invention is configured such that the upper blocking surface portion 11 has an induction curved portion 11a forming a curved surface downward from the center to all directions.

In addition, a diffusion-inducing curved surface portion 14b that diffuses and guides reverse air scattering compressed air flowing in from the lower inflow hole 12 in all directions to the lower portion of the central blocking member 14 that is attached to the center of the upper blocking surface portion 11 is guided. To have it.

At this time, as shown in Figures 7 and 8, it is preferable to make the diameter of the lower inlet hole 12 smaller than the outer diameter of the central binding member 14.

Therefore, the reverse air scattering compressed air flowing into the lower inlet hole 12 hits the diffusion-inducing curved portion 14b of the central binding member 14 and can be guided in all directions, so that it can be guided very well.

Therefore, the reverse air scattering compressed air flowing into the lower inflow hole 12 reaches the diffusion-inducing curved portion 14b of the central binding member 14, and is guided and moved in all directions, and thus the reverse wind scattering is induced. Compressed air is continuously guided along the induction curved portion 11a of the upper blocking surface portion 11 so as to be simultaneously induced with the induction action of the standing guide pieces 22, 22', thereby rapidly moving toward the rim moving path 21. Since it is moved, a better induction action is promoted and dust collection efficiency is improved.

In addition, the present invention, as shown in Figure 7, the rim movement furnace 21 is provided with a lower escape preventing piece portion (21a) provided at the inner end of the flow space portion 13 is formed to be integrally upward to the outflow prevention standing piece ( 21b) is further configured to be provided.

Therefore, the reverse air scattering compressed air that is moved from the flow space part 13 is blocked by the outflow prevention standing piece 21b and is not prevented from escaping to the outside, and the reverse air scattering compressed air flowing into the lower inflow hole 12 is satisfactorily It will be able to flow into the flow space part (13).

Therefore, the reverse air scattering compressed air introduced into the lower inflow hole 12 is blocked by the outflow prevention standing piece 21b, so that foreign matter and the reverse air scattering air flowing into the flow space part 13 are not prevented from escaping to the outside. Since the scattering air cannot escape to the outside, the wind strength of the backwind scattering compressed air in the flow space portion 13 is not weakened, so that the foreign matter and the backwind scattering compressed air are more quickly moved to the discharge hole 25.

In addition, the lower inlet hole 12 may be configured to have a diameter large enough to be identified with the naked eye as shown in FIG. 2, but the lower inlet hole 12 shown in FIG. 2 as shown in FIG. 7 Rather, it may be configured with a relatively small diameter, which may be modified in various ways depending on the area or product structure to remove foreign substances with compressed air.

[Embodiment 2] according to the present invention is configured to be further configured to further include a bellows type reverse wind guide means 30 shown in FIG. 10 in the dust-prevention and dust collecting apparatus shown in FIGS. 7 and 8, and Since the foreign matter scattering prevention and dust collecting apparatus shown in FIG. 8 has already been described in [Example 1], a description of the same configuration will be omitted and only the configuration related to the reverse wind guide means 30 will be described.

9 and 10, the reverse wind guide means 30 according to the present invention has a locking jaw portion 31 inserted into the lower inflow hole 12 and engaged with the upper end of the outflow prevention standing piece 21b, A plurality of annular projections 32a and annular grooves 32b alternately in the vertical direction toward the lower portion of the locking jaw part 31, and the bottom circumference is adhered to the lower outer periphery of the elastic wrinkle part 32. There is a piece 33 and is configured to have a reverse wind guide passage 34 inside.

The counterwind guide means 30 is preferably made of an elastic rubber-based material, and a plurality of annular projections 32a and annular grooves 32b are pushed upwards and downwards. Because it is alternately, it is compressed in the longitudinal direction, and the length is reduced, and when the pressing force is removed, it is brought back to the original state again and is in an extended state.

Therefore, [Example 2] according to the present invention, the central binding member 14 of the rubber material having a diffusion-inducing curved surface portion 14b at the bottom, and the central binding member 14 are coupled to the center of the outer side in all directions. An upper blocking surface portion 11 having an induction curved surface portion 11a forming a curved surface downwardly, a lower inflow hole 12 provided correspondingly toward the lower portion of the upper blocking surface portion 11, and the upper blocking surface portion 11 And the inflow hole 12, the scattering prevention part 10 having a flow space part 13 provided between the and the reverse air scattering compressed air mixed with foreign matter flowing into the flow space part 13 toward the edge movement path 21 It is moved to be guided by a dust collecting induction portion 20 to be guided to move in a direction toward a single discharge hole 25 along the circumferential frame moving path 21, and the lower inflow hole 12 is inserted to prevent leakage. There is a locking jaw portion 31 that is engaged at the upper end of the piece 21b, and a plurality of annular projection portions 32a and an annular groove portion 32b are alternately stretched and wrinkled portions 32 downward and upward to the locking jaw portion 31. ), the elastic outer circumferential portion 32, the bottom circumferential piece portion 33 on the lower periphery, the inside is configured to have all of the bellows-type reverse wind guide means 30 configured to have a reverse wind guide passage 34.

Therefore, the present invention, as shown in Figure 9, when inserting the injection pipe (Ga) into the screw hole (Ka) in the state in which the reverse air guide means (30) is coupled to the lower inlet hole (12) the bottom adhesion piece (33) The product (K) is in a state of being in close contact with the surface, and in this state, when the nozzle (Gb) at the tip of the injection pipe (Ga) is gradually moved downward, the length of the elastic wrinkle portion 32 is reduced to a compressed state. Because it is in a state in which it is possible to inject the compressed air while moving the injection pipe (Ga) in the downward direction.

In addition, the reverse air scattering compressed air ejected by returning from the screw hole Ka to the upper direction enters the flow space part 13 along the reverse wind guide hole 34 and is discharged to the discharge hole 25. Therefore, it is possible to collect the entire quantity in a state in which no foreign matters mixed with the reverse air scattering compressed air are leaked to the outside.

On the other hand, the present invention is a foreign matter scattering prevention and dust collecting device described by [Example 1] is preferably to be used to remove and collect foreign matter on the product (K) having a large groove area or a relatively smooth surface. , It is preferable that the foreign matter scattering prevention and dust collecting device described by [Example 2] of the present invention is used when removing foreign matter in a groove or a screw hole (Ka).

Therefore, the present invention is not necessarily limited to what has been described and described in the drawings, and may be modified in various ways by those skilled in the art to which the present invention pertains, so as not to significantly deviate from the scope of the claims. It is self-evident that it should be widely protected.

10: scattering prevention unit 11: upper blocking section
11a: induction curved portion 12: lower inlet hole
13: flow space part 14: center binding member
14a: injection through 14b: diffusion-inducing curved portion
20: dust collection induction part 21: border moving road
21a: Lower departure prevention piece 21b: Spill prevention standing piece
22: standing guide 22a: inner end
22b: outer end 22c: discharge direction curved surface
23: Radiation path 24: Collection hole
25: discharge hole 30: counterwind guide means
31: hanging jaw portion 32: elastic wrinkles
32a: annular projection 32b: annular groove
33: bottom contact piece 34: counterwind guide ball
S: Center of foreign material movement direction G: Air gun Ga: Injection tube Gb: Nozzle P: Collection bag K: Product Ka: Screw hole

Claims (6)

The upper blocking surface portion 11 to which the central binding member 14 of the rubber material is coupled to the center, the lower inflow hole 12 provided correspondingly to the lower portion of the upper blocking surface portion 11, and the upper blocking surface portion 11 And a scattering prevention part 10 having a flow space part 13 provided between the lower inlet hole 12; And
An edge moving path 21 provided in an outer portion in communication with the flow space portion 13 and having an outer circumferential shape and having a “⊃” shape in cross section, and an upper cut-off section 11 inside the edge moving path 21 ) A plurality of standing guide pieces (22,22') provided at equal intervals in all directions so as to stand in the lower direction, and a plurality of radial moving paths (23) provided between the plurality of standing guide pieces (22,22') Equipped with a reverse air scattering compressed air mixed with foreign matter flowing into the flow space portion 13 is moved to be guided in the direction of the rim moving path 21, one discharge hole 25 along the circumferential rim moving path 21 It includes a dust collecting induction portion 20 to be moved to be guided in the direction;
The upper blocking surface portion 11 has an induction curved surface portion 11a forming a curved surface downwardly from the center to all directions, and a lower inflow hole is provided in the lower portion of the central blocking member 14 that is attached to the central portion of the upper blocking surface portion 11 A dust collecting device for preventing foreign matter scattering for an air gun, characterized in that it is configured to have a diffusion-inducing curved surface portion (14b) to be diffused and guided by the reverse air scattering compressed air introduced from (12).
A rubber-like central binding member 14 having a diffusion-inducing curved portion 14b at the bottom and a guide curved portion 11a forming a curved surface downwardly in all directions at the center where the central binding member 14 is coupled. The upper blocking surface portion 11, the lower blocking hole 12 provided to correspond to the lower portion of the upper blocking surface portion 11, and the flow space provided between the upper blocking surface portion 11 and the lower inlet hole 12 Shatterproof portion 10 having a portion (13); And
An edge moving path 21 provided in an outer portion in communication with the flow space portion 13 and having an outer circumferential shape and having a “⊃” shape in cross section, and an upper cut-off section 11 inside the edge moving path 21 ) A plurality of standing guide pieces (22,22') provided at equal intervals in all directions so as to stand in the lower direction, and a plurality of radial moving paths (23) provided between the plurality of standing guide pieces (22,22') Equipped with a reverse air scattering compressed air mixed with foreign matter flowing into the flow space portion 13 is moved to be guided in the direction of the rim moving path 21, one discharge hole 25 along the circumferential rim moving path 21 It includes a dust collecting induction portion 20 to be moved to be guided in the direction;
There is a locking jaw part 31 inserted into the lower inflow hole 12 and engaged with the upper end of the outflow preventing standing piece 21b, and a plurality of annular protrusions 32a and an annular groove part 32b toward the lower side of the locking jaw part 31 ) Has an elastic wrinkle portion 32 alternately in the vertical direction, a bottom sealing piece portion 33 at the lower outer periphery of the elastic wrinkle portion 32, and a bellows type configured to have a reverse wind guide passage 34 inside. A dust collecting device for preventing foreign matter scattering for an air gun, characterized in that it is configured to include a counterwind guide means (30).
The method according to any one of claims 1 or 2, wherein the standing guide pieces (22, 22') are
It is provided with an inner end (22a) adjacent to the central binding member 14, and an outer end (22b) adjacent to the rim moving path 21, the discharge hole between the inner end (22a) and the outer end (22b) (25) The reverse air scattering compressed air in the radial movement furnace 23 is integrally formed so as to have the bow-shaped discharge direction curved surface portion 22c curved in the direction to move in the direction of the edge movement path 21 to move the edge A dust collecting device for preventing foreign matter scattering for an air gun, characterized in that it is configured to be guided to be transported along the furnace (21) toward the discharge hole (25).
The method according to any one of claims 1 or 2, wherein the standing guide pieces (22, 22') are
A plurality of standing guide pieces 22 and 22' are symmetrical to both sides based on the foreign material movement direction center line S connecting the center of the central binding member 14 and the discharge hole 25, and are provided at equal intervals in the radial direction. A dust collecting device for preventing foreign matter scattering for an air gun, characterized in that it is made.
According to claim 2,
The upper blocking surface portion 11 has an induction curved surface portion 11a forming a curved surface downwardly from the center to all directions, and a lower inflow hole is provided in the lower portion of the central blocking member 14 that is attached to the central portion of the upper blocking surface portion 11 A dust collecting device for preventing foreign matter scattering for an air gun, characterized in that it is configured to have a diffusion-inducing curved surface portion (14b) to be diffused and guided by the reverse air scattering compressed air introduced from (12).
The method according to any one of claims 1 or 2,
The diameter of the circumferential rim moving furnace 21 is relatively larger than the diameter of the lower inflow hole 12, and the lower shedding prevention part 21a is provided at the lower side of the rim moving duct 21, or Alternatively, the foreign matter scattering for the air gun, characterized in that the lower escape prevention piece portion (21a) is configured to be provided so that the outflow prevention standing piece (21b) integrally formed to be upwardly formed in an upward direction toward the flow space portion (13). Preventive combined dust collector.

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