WO2014168326A1 - Dust suction device - Google Patents

Abstract

A dust suction device comprises: a housing having a plurality of inlet holes on the upper part thereof; a driving unit including a body, a head connected to the upper side of the body, and a support member formed along the circumference of the body; and an elastic unit for upwardly pressing and elastically supporting the driving unit, wherein, by the upward pressing of the elastic unit, the body is arranged in a state where at least a part thereof is inserted into the inside of each of the inlet holes within the housing, the head is arranged in a state where at least a part thereof protrudes from the inlet holes, the support member is arranged in a state where the inlet holes are closed thereby, and the inlet holes can be opened when the support member downwardly moves by the pressure applied to the head from the upper side of the housing.

Description

Dust suction device

The present application relates to a dust suction device.

In general, the doorway of a building such as a hospital, a large shopping mall, a factory, an apartment, or the like is provided with a footrest, a mat, and the like so as to shake off dust such as dirt on the sole of a shoe. The scaffold which is generally used is composed of a plurality of diaphragms arranged in the horizontal direction and a plurality of diaphragms arranged in the longitudinal direction in a lattice form. In addition, the general mat is a mat made mostly of fabric to absorb moisture or dust.

However, such a footrest or a mat has a problem in that it is inconvenient to use because the user has to shake off the dirt such as dirt on the shoes by directly moving the legs. In addition, the conventional mat may have a mold after the dust is adsorbed, need periodic disinfection or washing to maintain the clean, there is a problem that the service life is short due to the shape deformation of the mat itself.

In connection with the invention for solving these problems, Japanese Laid-Open Patent Publication No. 2001-224548 (name of vibration suppression apparatus) has a protrusion inside the suction box in which the circular suction port is formed, and protrudes out of the suction box to block the circular suction hole. A damping device is disclosed that includes a movable member having a top surface on a hemispherical surface, and wherein foreign matter is sucked into a gap formed between the circular suction port and the top surface on a hemispherical surface when the top surface on the hemispherical surface is pressed.

However, in such a conventional vibration damping device, the opening and closing of the circular suction port is made by the upper surface on the hemispherical surface of the movable member. While moving obliquely to the home position, the center of the upper surface on the hemispherical surface may not be returned to the circular suction port but may be offset from the circular suction port. If the oblique external force is repeated several times, the upper surface on the hemispherical surface may be separated from the moving path and caught in the suction box. That is, there is a problem that it is difficult to maintain the opening and closing of the circular suction port normally to the external force action in various directions.

In addition, when the movable member is pressed obliquely, the upper surface on the hemispherical surface was caught around the circular suction port and could not be moved smoothly downward. Therefore, there was a problem that the inhalation of foreign matter can not be made properly.

An object of the present invention is to provide a dust suction device that prevents the problem that the member for opening and closing the inlet hole is not moved downward, or pinched inside the suction box even if moved downward.

As a technical means for achieving the above technical problem, the dust suction device according to the first aspect of the present application, a housing having a plurality of inlet holes formed thereon; A drive unit including a body, a head connected to an upper side of the body, and a support member formed around the body; And an elastic unit configured to elastically support the driving unit upwardly and elastically. By upwardly pressing the elastic unit, the body is disposed in a state where at least a part of the body is inserted into each of the inflow holes in the housing. The head is disposed in a state in which at least a portion protrudes over the inlet hole, the support member is disposed in a state of closing the inlet hole, the inlet hole is in accordance with the pressure applied to the head from the upper side of the housing When the support member is moved downward may be opened.

According to the exemplary embodiment of the present application, the driving unit may have a predetermined gap between the inner circumference of the inflow hole so that the upper side and the inside of the housing may communicate with the inflow hole during the downward movement.

According to the aforementioned problem solving means of the present application, the drive unit is provided with a supporting member for opening and closing the inlet hole separately from the portion protruding onto the inlet hole, the gap can be formed between the drive unit and the inner circumference of the inlet hole, This obliquely lowered to prevent the return to the home position or pinched in the housing, even if pressed in an oblique direction can be moved smoothly downward.

1 is a schematic perspective view of a dust suction apparatus according to an embodiment of the present application.

Figure 2 is a schematic cross-sectional view of the dust suction apparatus according to an embodiment of the present application.

3 is a state diagram used in the dust suction apparatus according to an embodiment of the present application.

Figure 4 is a perspective view of a drive unit included in the dust suction device according to an embodiment of the present application.

5 is a schematic plan view of a dust suction apparatus according to an embodiment of the present application.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present disclosure. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Throughout this specification, when a member is located "on" another member, this includes not only when one member is in contact with another member but also when another member exists between the two members.

Throughout this specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components unless specifically stated otherwise. As used throughout this specification, the terms "about", "substantially" and the like are used at, or in the sense of, numerical values when a manufacturing and material tolerance inherent in the stated meanings is indicated, Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers. As used throughout this specification, the term "step to" or "step of" does not mean "step for."

For reference, in the description of the embodiments of the present application, terms related to directions or positions (upper side, lower side, and the like) are set based on the arrangement state of each component shown in the drawings. For example, as seen in FIG. 2, the upper side may be the upper side, the lower side may be the lower side, and the like. However, in various practical applications of the embodiments of the present disclosure, it may mean a direction that is generally upward, such as the direction in which the upper side is viewed obliquely.

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

First, the dust suction device 1 (hereinafter referred to as 'the dust suction device 1') according to an embodiment of the present application will be described.

This dust suction device (1), when provided in the entrance from the outside to the room to prevent foreign matter from entering the room, and if provided outside, to prevent foreign matter from falling where the dust suction device (1) is not installed As can be done, it prevents the presence of foreign objects in unwanted places.

The dust suction device 1 includes a housing (100).

The inner region of the housing 100 may be divided into a plurality of regions.

Each of the inner regions of the housing 100 is preferably divided into independent regions. At this time, foreign matter may be sucked in each divided area individually. In this case, a stronger suction force can be transmitted to each region than in the case where the inside of the housing 100 is not divided, so that the flow performance of foreign matter for discharge can be improved.

An inner region of the housing 100 may be divided into partitions 150, for example, as shown in FIG. 5. The partition wall 150 may be formed in the vertical direction of the housing 100 to partition an inner region of the housing 100 in the horizontal direction.

In addition, the housing 100 may be provided with a foreign matter discharge port 170 connected to each area so that foreign matters coming from each of the inner regions of the housing 100 divided into a plurality are collected.

As illustrated in FIG. 5, the foreign matter outlet 170 may be provided at one side of the housing 100. In addition, the foreign material outlet 170 may be connected to one side of the dust collector 700.

The foreign matter outlet 170 may collect foreign matter from each of the inner regions of the housing 100 through the suction force of the dust collector 700, and send the foreign matter to the dust collector 700.

The housing 100 has a plurality of inflow holes 111 formed thereon.

Referring to FIG. 3, the inflow hole 111 serves as a passage through which foreign matter such as soil buried in the sole of the shoe S is sucked into the housing 100.

The plurality of inflow holes 111 may be formed to be spaced apart at predetermined intervals on the upper portion of the housing 100. For example, when the dust suction device 1 is provided at an entrance of a building with a large flow population, such as a hospital, a large shopping mall, or a department store, the inflow hole 111 may be formed at a narrower interval. In this case, the predetermined interval may be the same interval or may be different intervals.

Inlet hole 111 may be formed in a variety of shapes, such as circular, oval, polygonal.

The size of the inflow hole 111 may be selected as needed. For example, when the dust suction device 1 is provided in a hospital, a large shopping mall, a department store, or the like, since the flow population is large, the inflow hole 111 may be formed relatively large so that a larger amount of foreign matter is sucked. At this time, when the inlet hole 111 has a circular shape, the size of the inlet hole 111 may mean the diameter of the inlet hole (111).

The plurality of inflow holes 111 may be formed to have a predetermined size, or may each be formed to have a different size as needed.

The inflow hole 111 is opened when the support member 350 is moved downward by the pressure applied to the head 330 from the upper side of the housing 100.

Here, the pressure applied to the head 330 may be a pressure applied in an oblique direction toward the head 330 from the upper side of the housing 100, or may be a pressure applied in the vertical direction.

Referring to FIG. 3, when the shoe S presses the head 330, the entire driving unit 300 is elastically moved downward by the elastic unit 500. Accordingly, the support member 350 which blocks the lower side of the inflow hole 111 is elastically moved downward to be spaced apart from the lower side of the inflow hole 111 so that the inflow hole 111 is opened and the inflow hole 111 is opened. Foreign matter may be sucked into the housing 100 through the).

2 and 3, the upper circumference of the inflow hole 111 may be formed in a taper shape.

Some of the foreign matter on the shoe S may fall on the upper plate 110. In this way, if the foreign matter placed on the upper plate 110 is left as it is, there is a risk that foreign matter may be introduced or dropped into an unwanted place.

Thus, by forming the upper periphery of the inlet hole 111 in a tapered shape, such foreign matter can flow into the inner circumferential surface of the inlet hole 111 to be sucked into the interior of the housing 100. Therefore, it is possible to minimize the foreign matter present in the unwanted place.

The housing 100 may include an upper plate 110 on which an inflow hole 111 is formed.

In addition, the housing 100 may include a lower plate 130 having a plurality of protruding units 131 protruding upward at a position corresponding to the inflow hole 111.

Referring to FIGS. 2 and 3, the upper plate 110 and the lower plate 130 may be spaced apart from each other so that the driving unit 300 and the elastic unit 500 may be provided therebetween.

In order to extend the life of the dust suction device 1, the upper plate 110 and the lower plate 130 is preferably made of a material having high rigidity, corrosion resistance and oxidation resistance.

In addition, at least one of the upper plate 110 and the lower plate 130 may be formed of plastic. At this time, the plastic injection molding may contain a component having an anion generating function, a component having an antibacterial function, a component having a deodorizing function, and the like. Therefore, the dust suction device 1 can be kept clean.

The upper plate 110 may be provided with a display unit (not shown). The display unit may display an operation state of the dust suction device 1 and the like. Therefore, it is possible to easily determine whether or not the dust suction device (1). For example, the display unit may be provided at one side of the upper plate 110. In addition, the display unit may be provided with, for example, an LED, an LCD, or the like.

The top plate 110 may include a mood light. Through this, aesthetics can be improved.

The protruding unit 131 may be integrally formed with the lower plate 130. For example, the lower plate 1315 and the protruding unit 131 may be integrally formed through injection. Through this, the protruding unit 131 may be formed more firmly, and there is no room for forming a gap between the lower end of the protruding unit 131 and the lower plate 130, thereby improving airtightness.

The protruding unit 131 may mount the elastic unit 500.

2 and 3, the protruding unit 131 may have an elastic unit 500 mounted therein, and although not shown in the drawing, the protruding unit 131 may have a shape in which a lower portion of the elastic unit 500 can be inserted, such as a protrusion shape. May have

Through this, the elastic unit 500 may be disposed in the vertical direction from the lower portion of the inlet hole 111. Therefore, the elastic unit 500 may support the driving unit 300 to be described later is inserted into the inlet hole 111 so as to elastically move.

2 and 3, a protruding unit groove 1313 into which a lower portion of the elastic unit 500 is inserted may be formed on an upper surface of the protruding unit 131. Through this, the lower portion of the elastic unit 500 may be mounted inside the protruding unit 131.

The sole of the shoe (S) may be soiled with dirt, as well as foreign matter such as moisture. When the sole of the shoe S comes in contact with the driving unit 300 in a state in which foreign matter such as moisture is attached, such foreign matter may be introduced into the housing 100 through the inflow hole 111.

In general, the elastic unit 500 is made of a metal material having a high rigidity to withstand the load applied to the drive unit 300. However, when foreign matter such as moisture is deposited on the elastic unit 500 made of such metal, the elastic unit 500 may be corroded. Therefore, there was a problem that the periodic replacement of the elastic unit 500 is required.

Thus, the dust suction device 1 is inserted into the protrusion unit groove 1313 by inserting the elastic unit 500 into the inside of the protrusion unit 131, foreign matter such as moisture introduced into the interior of the housing 100 The elastic unit 500 may be introduced to prevent the elastic unit 500 from corroding. Therefore, the trouble of periodically replacing the elastic unit 500 can be eliminated, and the cost of replacement can be reduced.

The bottom surface of the protruding unit groove 1313 may have a fastening portion 1315 to which the lower end of the elastic unit 500 is fixed.

2 and 3, the lower end of the elastic unit 500 is inserted into the fastening part 1315, so that the elastic unit 500 is not detached and stably presses the driving unit 300 as described below. I can support it.

In this case, the fastening part 1315 may be formed integrally with, for example, the protruding unit 131 and the lower plate 130. Through this, the airtightness can be increased, and the fastening part 1315 can be formed more firmly.

The protruding unit 131 may be inserted into the body groove 313 so that the outer circumferential surface thereof corresponds to the inner circumferential surface of the body groove 313 so as to guide the elastic movement of the driving unit 300 in the vertical direction.

Here, referring to FIG. 3, when the driving unit 300 moves upward or downward, the outer circumferential surface of the protruding unit 131 and the inner circumferential surface of the body groove 313 maintain a predetermined contact relationship. For example, it may mean that only a part of the contact is not shaken or the tolerance is not generated. At this time, the degree of contact or the degree of tolerance means the degree to which the elastic movement of the drive unit 300 can be guided.

As such, the inner circumferential surface of the body groove 313 is moved along the up and down direction of the outer circumferential surface of the protruding unit 131 facing the same, thereby guiding the driving unit 300 so as not to deviate from the path of elastic movement.

The outer circumferential surface of the protruding unit 131 and the inner circumferential surface of the body groove 313 may be partially overlapped in the vertical direction in a state in which the inlet hole 111 is closed by the support member 350.

Here, the partial overlap in the vertical direction may mean that a part of the outer circumferential surface of the protrusion unit 131 and a part of the inner circumferential surface of the body groove 313 face each other as shown in FIGS. 2 and 3.

When the dust suction device 1 is provided at the outside, a large amount of rainwater flows through the inlet hole 111 at the same time when the inlet hole 111 is opened, so that water may be filled in the housing 100. have. As such, when a large amount of foreign matter, such as moisture coming in through the inlet hole 111, enters the protruding unit groove 1313, the elastic unit 500 is elastic only by being provided inside the protruding unit 131. It is not possible to prevent corrosion of the unit 500.

Thus, the elastic unit 500 may be provided so as not to be exposed to the inside of the housing 100 in the body groove 313 and the protruding unit groove 1313. Thus, the elastic unit 500 can be blocked to the maximum extent possible.

At this time, the outer circumferential surface portion of the protruding unit 131 and the inner circumferential surface of the body groove 313 in a state in which the inflow hole 111 is closed in order to prevent foreign substances such as moisture from entering the protruding unit groove 1313 to the maximum. Some may be in close contact.

The dust suction device 1 includes a drive unit (300).

The drive unit 300 includes a body 310.

2 and 3, the body 310 is disposed with at least a portion inserted into each of the inflow holes 111 in the housing 100 by upward pressurization of the elastic unit 500.

The body 310 is elastically moved downward when an external force is applied to the head 330.

In addition, the driving unit 300 includes a head 330 connected to the upper side of the body 310.

By upward pressurization of the elastic unit 500, the head 300 is disposed in a state in which at least a portion protrudes onto the inlet hole (111).

2 and 3, the head 330 is directly in contact with the sole of the shoe S from the upper side of the housing 100. When an external force is applied to the head 330, it is elastically moved downward.

As shown in FIG. 4, the head 330 may have a circular cross section except for the protruding member 331, but is not limited thereto. In some cases, the cross section of the head 330 may have a polygonal shape such as a quadrangle.

When the head 330 is applied with pressure, the head 330 may be elastically moved into the inflow hole 111.

In this case, the thickness b of the inflow hole 111 may be greater than the thickness a of the head 330.

Here, the thickness b of the inflow hole 111 means the length in the vertical direction in which the inflow hole 111 is formed. In some cases, this may be understood as the thickness of the upper plate 110 of the portion of the upper plate 110 of the housing 100 in which the inlet hole 111 is formed.

In addition, the thickness (a) of the head 330 may be a thickness including a protruding member 331 formed on the top of the head 330 as shown in FIG.

2 and 3, when the thickness b of the inflow hole 111 is greater than the thickness a of the head 330, when the pressure is applied to the head 330 to move downward, the head 330 is moved. Does not exit to the lower side of the inlet hole 111, it can be moved only within the inlet hole (111). Therefore, it is possible to prevent the head 330, which is pressurized from the upper side of the housing 100, escapes to the lower side of the inflow hole 111 and gets caught in the housing 100.

A protruding member 331 protruding upward may be formed at an upper end of the head 330.

The protruding member 331 may serve to drop foreign matter remaining in the sole while being in contact with the sole of the shoe (S).

Referring to FIG. 4, the protruding member 331 may protrude radially to remove foreign matter.

2 and 3, the bottom surface of the groove formed between the radially protruding protruding members 331 may be formed in an inclined shape. Through this, foreign matters that are removed from the sole of the shoe S by the protruding member 331 and dropped on the bottom surface of the groove formed between the protruding members 331 flow into the inflow hole 111, so that the foreign matter is more smoothly. Can be inhaled.

The protruding member 331 is not limited to having a radial shape. For example, the protruding member 331 may be a brush.

In addition, the drive unit 300 includes a support member 350. The support member 350 is formed around the body 310.

By upward pressurization of the elastic unit 500, the support member 350 is disposed in a state of closing the inlet hole 111. That is, the support member 350 may open or close the lower side of the inflow hole 111 while being elastically moved.

More specifically, referring to FIG. 3, when the head 330 is pressed, the support member 350 is elastically moved downward along with the body 310 to open the inflow hole 111, and the head 330 is When not pressed, the body 310 is pushed upward by the elastic unit 500 to elastically move upwards to close the inflow hole 111.

In the conventional vibration damping device, the suction port is opened and closed by the upper surface on the hemispherical surface of the movable member, while the dust suction device 1 is separate from the driving unit 300 protruding onto the inlet hole 111, the driving unit separately. Opening and closing the inlet hole 111 through the support member 350 formed around the (300).

In the dust suction device 1, the support member 350 normally closes the inlet hole 111, and when the pressure is applied to the head 330 from the upper side of the housing 100, the dust suction device 1 moves downward. Open). That is, the driving unit 300 has a gap between the inlet hole 111 so that the upper portion and the inside of the housing 100 communicate with each other through the inlet hole 111 when the support member 350 is moved downward. Or may have a passageway in communication therewith. Such a gap or passage may be, for example, a gap 1111 described later.

The upper surface of the support member 350 may be made of an elastic material such as rubber. For example, a rubber packing may be provided on the upper surface of the support member 350, or rubber may be coated. Through this, the support member 350 may be in close contact with the lower surface of the upper plate 110, and the support member 350 is damaged even when the support member 350 repeatedly contacts the lower surface of the upper plate 110. You can stop it.

The head 330, the body 310, and the support member 350 may be integrally formed. Through this, the driving unit 300 can be easily manufactured. At this time, the head 330, the body 310, and the support member 350 is not limited to being integrally formed, the head 330 and the body 310 or the body 310 and the support member 350 ) May be integrally formed.

In addition, the head 330 may be made of a material including a component having an antibacterial function, a component having an anion generating function, a component having a photocatalyst deodorizing function, and the like. Through this, the driving unit 300 can be maintained in a clean state. At this time, the body 310 and the support member 350 may also be made of a material containing such a component.

In addition, at least one interior of the body 310 and the support member 350 may be made of a material including a component having a photocatalytic sterilization deodorization function. Since foreign matter is sucked into the housing 100 and thus many pollutants exist, the interior of the body 310 and the support member 350 may be made of a material having a faster sterilization function, so that a clean state may be maintained. .

When the driving unit 300 moves downward, a predetermined gap 1111 is formed between the inner circumference of the inflow hole 111 so that the upper side and the inside of the housing 100 communicate with each other through the inflow hole 111. Can have

In the conventional vibration damping device, the suction port is opened and closed by the upper surface on the hemispherical surface of the movable member, so that the upper surface on the hemispherical surface closes the suction port without any gap. The position (center of the hemispherical surface corresponding to the center of the circular suction port) may not be returned to the circular suction port but may be offset from the circular suction port. In addition, when the action of the oblique external force is repeated several times, the upper surface on the hemispherical surface may be separated from the movement path and caught in the suction box. In addition, when pressing the movable member at an angle, the upper surface on the hemispherical surface could not be smoothly moved downward caught on the circular suction port. Therefore, the conventional vibration damping device has a problem in that opening and closing of the circular suction port is difficult to be normally maintained under external force action in various directions, and foreign substances cannot be sucked properly.

On the other hand, the dust suction device 1, as shown in Figures 2 and 3, since the gap 1111 is formed between the drive unit 300 and the inner circumference of the inlet hole 111, the drive unit 300 ) Is obliquely lowered to leave the correct position, or can be prevented from being caught in the housing (100). In addition, the dust suction device 1 may be smoothly moved downward without being caught around the inlet hole 111 even if the driving unit 300 is pressed in an oblique direction. Therefore, the dust suction device 1 can normally maintain the opening and closing of the inlet hole 111 with respect to the external force action in various directions, it is possible to smoothly suck the foreign matter.

The gap 1111 may be formed in the vertical direction.

For example, the gap 1111 may be formed in the vertical direction as shown in FIGS. 2 and 3, and may be formed to be slightly inclined although not shown in the drawing.

The lower surface of the driving unit 300 may be formed with a body groove 313 into which the upper portion of the elastic unit 500 is inserted.

2 and 3, an upper portion of the elastic unit 500 may be mounted inside the driving unit 300. Therefore, foreign substances coming into the housing 100 through the inflow hole 111 may be prevented from entering the elastic unit 500.

At this time, as shown in Figures 2 and 3, the bottom surface of the body groove 313 (the upper reference surface of Figure 2) may be further formed with a groove into which the upper end of the elastic unit 500 can be fitted. Therefore, the inner circumferential surface of the groove is in close contact with the outer circumferential surface of the elastic unit 500, so that the elastic unit 500 can stably support the driving unit 300.

The dust suction device 1 includes an elastic unit (500).

The elastic unit 500 supports the driving unit 300 by pressing the driving unit 300 upward so that the inlet hole 111 is closed by the support member 350.

The elastic unit 500 is preferably provided in a compressed state to some extent to push the drive unit 300 in the upward direction.

As shown in FIG. 3, when pressure is applied to the driving unit 300 from the upper side of the housing 100, the elastic unit 500 is elastically compressed to allow the driving unit 300 to move downward.

The elastic unit 500 may be, for example, a spring, but is not limited thereto.

In addition, the elastic unit 500 has a rigidity enough to withstand the load applied to the drive unit 300, it is preferably made of a material having excellent corrosion resistance and oxidation resistance.

The suction device 1 may include a dust collector 700.

The dust collector 700 may suck foreign substances introduced into the inflow hole 111 to the outside of the housing 100.

Referring to FIG. 1, the dust collector 700 may be connected to a discharge port (not shown) formed in the housing 100 through a connection member such as a tube, and thus may suck foreign substances in the housing 100.

At this time, the dust collector 700 may be conditionally operated. For example, when it is detected that a person enters the doorway, the dust collector 700 may be operated, or when the external force is applied to the driving unit 300, the dust collector 700 may be operated.

Alternatively, the dust collector 700 may continue to operate only for a predetermined time or may always operate.

The inside of the dust collector 700 may be provided with a lamp having a photocatalyst sterilization deodorizing function and ultraviolet sterilization function. Such a lamp may sterilize the inside of the dust collector 700 at a predetermined time, for example. Through this, the dust collector 700 can maintain a clean state.

In addition, a filter may be provided inside the dust collector 700. Through this, fine dust can be prevented from leaking to the outside. For example, the filter may be a Hepa filter, which is a high performance filter that filters fine particles from air.

In addition, the dust collector 700 may be provided with a sensor. The sensor may detect that a person enters and exits and control the operation of the dust collector 700. For example, the sensor may be an ultrasonic sensor.

In addition, the dust collector 700 may be provided with a display unit. This may indicate the operating state of the dust collector 700. For example, the display unit may be provided as an LEC, an LCD, or the like.

In addition, the dust collector 700 may include a mood light. Through this, aesthetics can be improved. Such mood lights may be, for example, turned on when a person is detected to enter and exit.

In the conventional vibration damping device, the upper surface on the hemispherical surface of the movable member blocks the circular suction port, and the restraining point for maintaining the upper surface on the hemispherical surface at the correct position (the position of the center of the upper surface on the hemispherical surface corresponding to the center of the circular suction port) is separately provided. Didn't exist. Therefore, in the conventional vibration damping device, when the upper surface on the hemispherical surface is pressed obliquely, the movable member may be shifted obliquely and may be offset from the circular suction port without returning to the normal position. When such oblique external force was repeatedly applied several times, the upper surface on the hemispherical surface could escape the movement path and be caught in the suction box. In addition, when the movable member is pressed obliquely, the upper surface on the hemispherical surface was caught around the circular suction port and could not be moved smoothly downward.

On the other hand, the dust suction device 1 is a drive unit 300 through the inlet hole 111 through the support member 350 provided on the lower side of the head 330, not the upper surface of the head 330 corresponding to the upper surface. Opening and closing, a gap 1111 may be formed between the driving unit 300 and the inner circumference of the inlet hole 111. Thus, since the driving unit 300 is elastically moved while being biased only within the range in which the gap 1111 is formed, the driving unit 300 may be returned to the correct position and thus the position may be maintained. Therefore, the driving unit 300 may be caught inside the housing 100, and may be smoothly moved downward even when pressed in an oblique direction. That is, the dust suction device 1 may be elastically moved in the vertical direction to the drive unit 300 smoothly even against external force acting in various directions, it can be maintained to open and close the inlet hole 111 normally And the inhalation of foreign matter can be made properly.

In addition, the dust suction device 1 may mount the elastic unit 500 inside the protruding unit 131 or completely block the elastic unit 500 from being exposed to the inside of the housing 100. Even if the same foreign matter accumulates inside the housing 100, it is possible to prevent corrosion of the elastic unit 500.

The above description of the present application is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present application.

Claims (17)

In the dust suction device, A housing having a plurality of inflow holes formed thereon; A drive unit including a body, a head connected to an upper side of the body, and a support member formed around the body; And It includes an elastic unit for pressing the drive unit upward and elastically supported, By the upward pressure of the elastic unit, the body is disposed with at least a portion inserted into each of the inlet holes in the housing, the head is arranged with at least a portion protruding onto the inlet hole. The support member is disposed in a state of closing the inflow hole, And the inlet hole is opened when the support member is moved downward by the pressure applied to the head from the upper side of the housing. The method of claim 1, The drive unit, The dust suction device having a predetermined gap between the inner circumference of the inlet hole so that the upper side and the inside of the housing can communicate through the inlet hole during the downward movement. The method of claim 2, The gap is a dust suction device is formed in the vertical direction. The method of claim 2, The housing, A top plate on which the inflow hole is formed; And It includes a lower plate having a plurality of protruding unit protruding upward in a position corresponding to the inflow hole, The protrusion unit is a dust suction device that the elastic unit is mounted. The method of claim 4, wherein Dust suction device is formed on the top surface of the protruding unit is a protruding unit groove is inserted into the lower portion of the elastic unit. The method of claim 5, Dust suction device that is formed on the bottom surface of the protruding unit groove fastening portion is fixed to the bottom of the elastic unit. The method of claim 5, Dust suction device that the bottom surface of the body is formed with a body groove into which the upper portion of the elastic unit is inserted. The method of claim 7, wherein The protruding unit, Dust suction device is inserted into the body groove so that the outer peripheral surface corresponding to the inner peripheral surface of the body groove to guide the elastic movement of the drive unit in the vertical direction. The method of claim 8, The outer peripheral surface of the protruding unit and the inner peripheral surface of the body groove, Dust suction device that is partially overlapped in the vertical direction in the state in which the inlet hole is closed by the support member. The method of claim 1, The head is When the pressure is applied, the dust suction device is elastically moved into the inlet hole. The method of claim 10, The thickness of the inlet hole is dust suction device is larger than the thickness of the head. The method of claim 11, Dust suction device that is formed at the top of the head protruding member protruding upwards. The method of claim 12, The protruding member, Dust suction device that protrudes radially to enable the removal of foreign matter. The method of claim 1, The upper circumference of the inlet hole is a dust suction device is formed in a tapered shape. The method of claim 1, The dust suction device further comprises a dust collector for sucking the foreign matter introduced into the inlet hole to the outside of the housing. The method of claim 1, The head, the body, and the support member is a dust suction device is formed integrally. The method of claim 1, The inner region of the housing is divided into a plurality of regions, The housing has a dust suction device is provided with a foreign material discharge portion connected to each of the areas to collect foreign matter from each of the areas.

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