KR20140144439A - A dust collector and cleaner having the same - Google Patents

Abstract

A vacuum cleaner includes: a main vacuum cleaner body; a dust collecting case having an opening formed; a discharge cover opening and closing the opening; a locking member protruding on one end of the discharge cover; a dust collector coupled to the main vacuum cleaner body to collect contaminants in the atmosphere; an opening/closing unit having a lever selectively restraining the discharge cover from one side of the dust collecting case to control the opening and closing of the opening, wherein the lever includes a lever body coupled to the dust collecting case by a hinge with respect to a lever hinge shaft to be rotated; a fixating protrusion provided on the lever body to restrain the locking member; and a pushing protrusion provided on the lever body to push the locking member when the fixating protrusion stops restraining the locking member. Accordingly, the dust collector may easily be opened and closed; and a situation, wherein the discharge cover is not opened due to being locked to the dust collecting case, is prevented.

Description

Technical Field [0001] The present invention relates to a dust collecting assembly and a cleaner having the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting assembly and a vacuum cleaner having the dust collecting assembly.

Generally, the dust collecting apparatus of the vacuum cleaner has a dust-discharging cover 120 which is opened or closed at one side. The user removes the dust collecting device by opening the dust discharging cover formed in the lower part of the dust collecting device when the dust collecting device becomes dusty by the use of the vacuum cleaner for a long time.

The dust discharging operation of the dust collecting apparatus is performed by manually removing the dust collecting apparatus from the vacuum cleaner, moving the dust collecting apparatus to an appropriate place, and opening the dust discharging cover to remove the dust. The opening / closing device for this purpose is disclosed since the dust cover must not be opened unintentionally during the dust discharging process.

When the dust cover is opened in the dust collecting apparatus, there is a problem that the dust cover is scattered to the outside or the body is buried because the force is large and the posture is unstable in order to release the dust cover. Further, there is a problem that the dust-discharging cover is caught by the dust collecting device by the sealing material or dust for bringing the dust-discharging cover into close contact with the dust-collecting device, and the opening and closing operation is not performed.

According to an aspect of the present invention, there is provided a dust collecting assembly having an improved opening and closing structure for facilitating opening and closing of a dust collecting assembly, and a vacuum cleaner having the dust collecting assembly.

According to an aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body; A dust collecting device coupled to the cleaner main body for collecting dirt in the air, the dust collecting device having an opening formed therein, a discharge cover for opening and closing the opening, and a latching member projecting from one end of the discharge cover; And an opening / closing unit having a lever which selectively restricts the opening / closing of the opening by selectively restricting the discharge cover from one side of the dust collecting case, wherein the lever is hinged around the lever hinge shaft and hinged, Body; A locking protrusion provided on the lever body to lock the locking member; And a pushing protrusion provided on the lever body and pushing the latching member when the latching protrusion releases the latching of the latching member.

And the pushing protrusion pushes the latching member by the hinge rotation of the lever body.

Wherein the engaging member includes: a locking protrusion that is constrained by the fixing protrusion; And a pressing protrusion provided on the locking protrusion and being pressed by the pushing protrusion.

And the pushing protrusion extends from the lever body toward the dust collection case.

The pushing protrusion may include a pressing surface that forms an acute angle from the lever body with respect to a direction from the lever hinge shaft to the fixing protrusion in the lever body and pushes the pressing protrusion.

And the pressing protrusion includes a pressed surface that faces the pressing surface.

And the latching member may be disposed between the pushing projection and the fixing protrusion when the opening is closed by the discharge cover.

The lever may include a lever pressing portion which is provided at one end of the lever body on which the fixing protrusion is disposed so as to apply an external force to the lever.

The lever may include an elastic member which is provided between the other side of the lever pressing portion and the dust collecting case, and separates the lever from the dust collecting case.

The opening and closing unit may further include a rod-shaped pushing rod formed along a side surface of the dust collecting case and transmitting a pressing force to the lever at the other end.

The pushing rod has a pushing portion provided at one end thereof and receiving an external force to reciprocate the pushing rod along a side surface of the dust-collecting case; And a link protrusion provided at the other end and being linked with the lever.

The lever may include a link portion having a rail-shaped link groove to allow the link protrusion to move.

And the end of the link portion may be inclined toward the side of the dust collecting case with respect to the longitudinal direction of the lever body.

According to an aspect of the present invention, there is provided a dust collecting assembly comprising: a dust collecting case having an opened one side; A discharge cover which has a cover body and an engaging member protruding from one end of the cover body to open and close the opening of the dust collecting case; And a lever for selectively restricting the latching member to control the opening and closing of the opening and for pressing the latching member together with releasing of the latching member when the opening is opened.

And the lever is hinged to the dust collecting case and controls the opening and closing of the opening by rotating the hinge.

The lever includes: a lever body hinged to a side of the dust-collecting case with a lever hinge shaft; A locking protrusion provided on the lever body to selectively restrict the locking member; And a pushing protrusion provided on the lever body so as to be spaced apart from the fixing protrusion so as to press the engaging member in a direction in which the discharging cover is spaced apart from the opening when releasing the restraint of the fixing protrusion to the discharging cover .

Wherein the lever body comprises: a first body having the fixing protrusions and the pushing protrusions; And a second body provided on the other side of the first body with respect to the lever hinge axis and having a lever pressing portion for rotating the lever.

The lever may further include an elastic member provided between the second body and the dust collecting case such that the first body is in close contact with the engaging member.

The latching member may include a latching protrusion provided to protrude from the cover body toward the outer periphery and being selectively constrained by the latching protrusion. And a pressing protrusion provided on the locking protrusion and pressed by the pushing protrusion.

And the pressing protrusion may protrude perpendicularly from the locking protrusion.

Wherein the pushing protrusion includes a pressing surface provided to be inclined with respect to a pivoting direction about the lever hinge axis, and when the latching member is released from restraint through rotation of the lever, And pressurizing the pressurized surface of the discharge cover to press the discharge cover.

And a pushing rod which is formed along a side surface of the dust collecting case and moves forward and backward by a pressing force acting on one end of the pushing rod so as to be transmitted to the lever at the other end.

The lever may include a link portion that links with the pushing rod and converts the forward and backward movement of the pushing rod into a hinge rotation of the lever.

INDUSTRIAL APPLICABILITY The dust collecting assembly and the vacuum cleaner having the dust collecting assembly of the present invention can improve the open / close structure of the dust collecting assembly and can easily open / close the dust exhaust cover.

In addition, the structure for pushing the dust exhaust cover when the dust exhaust cover is opened allows the dust exhaust cover to be opened easily even if the dust exhaust cover is caught in the dust collecting assembly by the foreign substance or the sealing agent.

1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;
2 is a perspective view of a dust collection assembly in accordance with an embodiment of the present invention.
3 is a side view of a dust collection assembly in accordance with one embodiment of the present invention.
4 is an exploded view of a dust collection assembly in accordance with one embodiment of the present invention.
5 is a partial cross-sectional view in accordance with one embodiment of the present invention.
Figure 6 is a side view of a portion of a dust collection assembly in accordance with an embodiment of the present invention.
7A, 7B and 7C are views illustrating the operation of the opening and closing unit of the dust collection assembly according to an embodiment of the present invention.

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

1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention.

1, a vacuum cleaner 1 according to an embodiment of the present invention includes an upright type cleaner main body 10, a suction unit 20 installed at a lower portion of the main body 10 so as to suck foreign substances from the bottom of the indoor space, And a handle 30 provided at an upper portion of the main body 10 so that a user can easily move the vacuum cleaner 1. [

In the cleaner main body 10, an air blowing device (not shown) for generating a suction force for allowing foreign substances such as dust to be sucked through the suction body 20 and a foreign substance sucked through the suction body 20 are received and stored And may include a dust collection assembly 100. In addition, the handle 30 may be provided with a plurality of buttons (not shown) for allowing the user to select the operation of the vacuum cleaner 1.

For convenience of explanation, the present invention is applied to an upright type vacuum cleaner in which a suction body, a main body and a handle are integrally formed. However, the suction body and the handle are connected by a connection pipe, The present invention is not limited thereto.

FIG. 2 is a perspective view of a dust collecting assembly according to an embodiment of the present invention, FIG. 3 is a side view of a dust collecting assembly according to an embodiment of the present invention, FIG. 4 is an exploded view of a dust collecting assembly according to an embodiment of the present invention, FIG. 6 is a bottom view of a portion of a dust collecting assembly according to an embodiment of the present invention. Referring to FIG.

The dust collecting assembly 100 may include a dust collecting device 110 and an opening and closing unit 130.

The dust collecting apparatus 110 is connected to the cleaner main body 10 to collect dust in the air. The dust collecting apparatus 110 may be coupled to the cleaner main body 10 to filter the dirt from the sucked air and to discharge the dirt-filtered air.

The dust collecting apparatus 110 may include a dust collecting case 112 and a discharge cover 120.

The dust collecting case 112 has an opening 112a formed at one side thereof and dust and dirt can be stored therein. The discharge cover 120 may be provided to open and close the opening 112a of the dust-collecting case 112. [ When the dust case 112 is filled with dust or dirt, the dust inside the dust case 120 can be discharged to the outside through the opening of the dust cover 120, and the dust can be sealed and reused.

The discharge cover 120 includes a cover body 121 for covering the opening 112a of the dust collecting case 112, a latching member 124 provided at one end of the cover body 121 and a latching member 124 provided at the other end of the cover body 121 And may include a cover hinge 122.

A sealing member 123 is provided on one side of the cover body 121 to prevent dust or dirt from leaking outside when the opening 112a of the dust-collecting case 112 is closed.

The cover hinge 122 may be hinged to the dust cover case 112 and the cover body 121 so that the discharge cover 120 can be rotated with respect to the dust cover case 112. [ Specifically, the dust collecting case 112 includes a hinge engaging portion 114 on an opened outer peripheral surface thereof, and the cover hinge 122 is hinged to the hinge engaging portion 114 so that the discharge cover 120 can be hinge- It can be provided to be able to rotate around the center.

The engaging member 124 is restrained or restrained by the opening / closing unit 130 to be described later. That is, when one side of the dust collecting case 112 is closed by the discharge cover 120, the opening / closing unit 130 keeps the sealing member 124 in a closed state by being locked, 130 can release the restraint of the latching member 124 and push it out.

The latching member 124 protruding from one end of the discharge cover 120 may include a latching protrusion 125 and a pressing protrusion 126.

The stopper 125 may be configured to be extended or extended to the outer periphery of the discharge cover 120, such that the stopper 125 is locked or restrained by the opening / closing unit 130. When the discharge cover 120 closes the opened side of the dust collection case 112, the fixed surface 125a, which is the opposite side to the dust collection case 112 side, So that the discharge cover 120 is not separated from the dust-collecting case 112.

The pressing protrusion 126 is a portion pressed by the opening and closing unit 130 and may be provided so as to be perpendicular to the engaging projection 125 on the engaging projection 125. [ The pushing projection 126 is inclined in a direction away from the discharge cover 120 with respect to the outer peripheral direction of the discharge cover 120, that is, in a direction away from a virtual plane formed in the direction of the outer peripheral portion of the discharge cover 120 And may include a surface 126a. The pressing surface 172 of the pushing projection 170 and the pressed surface 126a to be described later are formed so as to face each other to correspond to each other.

The opening and closing unit 130 may include a lever 140 and a pushing rod 200.

The lever 140 is provided on one side of the dust collecting apparatus 110 to selectively open and close the discharge cover 120 to control opening and closing of the opening 112a.

The lever 140 may include a lever body 150, a fixing protrusion 160, and a pushing protrusion 170.

The lever body 150 may be hinged around the lever hinge shaft 152 and may be hinged to the dust collection case 112. The shape of the lever body 150 is not limited and it is satisfied that the pressing force at one side of the lever hinge shaft 152 can act on the other side of the lever hinge shaft 152 using the principle of the lever.

The lever body 150 may be hinged directly to the dust-collecting case 112. However, in the embodiment of the present invention, the dust-collecting case 112 is spaced apart from the side surface of the lever body 150, And a pair of hinge protrusions 150a provided on the side of the lever body 150 are hingedly coupled to a hinge groove 116a provided in the opening and closing unit guide 116. [ The hinge grooves 116a and the hinge protrusions 150a are provided on the opening and closing unit guide 116 and the lever body 150 respectively for convenience of explanation.

The lever 140 receives a pressing force from the outside at one side of the lever body 150 and presses the lever 180 against the lever 140 so that the lever body 150 can rotate around the lever hinge axis 152. [ The elastic member 182 may be provided on the other side of the portion 180, that is, between the back surface of the pressing portion 180 and the dust collecting case 112.

When the lever does not exert an external force on the pressing portion 180, the lever receives the elastic force in the direction in which the pressing portion 180 is separated from the dust-collecting case 112 so that the fixing protrusion 160 of the lever body 150, So that the end portion of the discharge cover 120 is pressed in the direction of restricting the engagement projection 125 of the discharge cover 120.

The lever pressing portion 180 and the elastic member 182 will be described from a different point of view. The lever body 150 includes a first body 150a provided with the fixing protrusion 160 and the pushing protrusion 170 to be described later and a second body 150b provided on the other side of the first body 150a around the lever hinge shaft 152 And a second body 150b having a lever 180 for the hinge rotation of the lever 140. [ An elastic member 182 may be provided between the second body 150b and the dust collecting case 112 so that the first body 150a can be brought into close contact with the engaging member 124. [

The fixing protrusion 160 may be formed at an end of the lever body 150 and extend from the lever 140. The fixing protrusion 160 may have a shape bent toward the dust collecting case 112 from the end of the lever 140 so as to have a hook shape in relation to the lever 140 so that the locking protrusion 125 may be constrained. More specifically, the inner surface of the fixing protrusion 160 is referred to as a fixing surface 162. When the discharge cover 120 seals one opened side of the dust collecting case 112, 125, so that the locking protrusion 125 can be restrained.

Since the discharge cover 120 is hinged to the dust case 112 via the cover hinge 122 and pivots about the discharge cover 120, the outer end of the pressing protrusion 126 is provided to have a larger turning radius than the inner end. That is, the other side of the pressure-receiving surface 126a of the pressing projection 126 than the side of the engaging projection 125 of the pressure-receiving surface 126a is provided with a larger turning radius. Therefore, on the fixing protrusion 160, an escape groove 164 having a width corresponding to the pressing protrusion 126 of the engaging member 124 can be provided. With this configuration, when the locking protrusion 160 is released from the locking protrusion 160 by the rotation of the lever 140 and the pushing protrusion 170 described later pushes the pressing protrusion 126, 126 can be prevented from being disturbed by the fixing protrusion 160.

Therefore, the pressing projection 126 may be formed with a first width W1 that is at least a part of the width of the engaging projection 125. [ The detent groove 164 of the fixing protrusion 160 corresponding to the pressing protrusion 126 may be formed with a second width W2 such that it is equal to or smaller than the first width W1.

Although the first width W1 and the second width W2 are not limited, the first width W1 may be equal to or smaller than the width of the latching protrusion 125, and the second width W2 may satisfy the first width W2. (W1).

The pushing protrusion 170 is provided on the lever body 150 so that the locking protrusion 160 can push out the locking member 124 when releasing the locking of the locking member 124. [ The pushing protrusion 170 can push the latching member 124 by the hinge rotation of the lever body 150. [ That is, the pushing protrusion 170 is provided on the lever body 150 so as to be spaced apart from the fixing protrusion 160 so that when the releasing cover 120 is released from restraint of the fixing protrusion 160, 112a of the engaging member 124 in a direction away from the engaging member 124. [

The pushing protrusion 170 may be provided between the lever hinge shaft 152 and the fixing protrusion 160. The pushing protrusion 170 may be disposed so that the engaging member 124 is provided between the pushing protrusion 170 and the fixing protrusion 160 when the opening 112a is closed by the discharge cover 120. [

The pushing protrusion 170 may extend from one side of the lever body 150 toward the dust case 112 and may have a pressing surface 172 for pressing the pressing protrusion 126.

The pressing surface 172 is formed to form an acute angle from the lever body 150 with respect to a direction from the lever hinge shaft 152 to the fixing protrusion 160 in the lever body 150, And may be provided to push the pressured surface 126a. In other words, the pressing surface 172 may be provided so as to be inclined with respect to the rotating direction about the lever hinge shaft 152. [ More specifically, the pushing protrusion 170 is separated from the lever 140 by the first portion 172a, which is the portion of the pushing protrusion 170 which is in contact with the lever 140, and the dust collecting case 112, A pressing surface 172 may be formed between the second portions 172b provided close to each other.

The pressing surface 172 presses the pressured surface 126a of the corresponding press protrusion 126 to release the release cover 120 ) Can be pressed and pushed out.

The pressing surface 172 of the pushing protrusion 170 and the pressured surface 126a of the pressing protrusion 126 sufficiently move the fixing protrusion 160 away from the locking protrusion 125 when the discharge cover 120 is opened The first gap G1 may be provided to allow the first gap G1. The first gap G1 is not limited and the pressing surface 172 of the pushing protrusion 170 and the pressing protrusion 126 of the pushing protrusion 170 after the fixing protrusion 160 formed on the lever body 150 is separated from the locking protrusion 125 The pressing surface 126a of the pressing surface 126a is spaced to be in contact with the pressing surface 126a.

The opening and closing unit 130 may control the operation of the lever 140 by connecting the pushing rod 200 to the lever 140 although the lever can directly control the operation by applying an external force to the pressing portion 180. [

The pushing rod 200 is provided on the end side of the lever 140 and may be provided to be linked with the lever 140 on the side of the dust case 112 so as to indirectly operate the lever 140 . The pushing rod 200 may have a rod shape.

The dust collecting case 112 may be provided with a pushing load rail 118 along the side surface thereof so as to guide the movement of the pushing rod 200. The pushing rod 200 can control the lever 140 by transmitting the pressing force received at one end thereof to the other end. More specifically, one end of the pushing rod 200 is provided with a pressing portion 204 to receive a pressing force, and the other end of the pushing rod 200 is provided with a linking projection 206. Through the pressing force of the pressing portion 204, The lever 140 can be turned on the hinge.

A link portion 190 for connection with the pushing rod 200 and a link groove 192 corresponding to the link protrusion 206 on the link portion 190 may be formed at the end of the lever 140. [ The link groove 192 may be formed in a rail shape so that the link projection 206 can reciprocate.

The link portion 190 can be extended from the lever 140 such that the end portion of the link portion 190 is inclined toward the side of the dust case 112 with respect to the longitudinal direction of the lever body 150. [ When no external force is applied to the pushing rod 200 in this configuration, the link protrusion 206 is provided on the upper side of the link groove 192 so that the lever does not affect the pressing portion 180, The link protrusion 206 moves downward along the rail of the link groove 192 and the lever pushes the pressing portion 180 toward the dust collecting case 112 so that the lever 140 can be hinged. This operation can achieve the same result as directly controlling the lever 140. [

As a result, when an external force is applied to the pressing portion 204 of the pushing rod 200, the link projection 206 reciprocates and the lever affects the pressing portion 180, so that the lever 140 can be hinged.

Further, the link portion 190 is provided so as to be separated from the dust-collecting case 112 by at least the second gap G2. The second gap G2 is an interval for preventing the rotation of the link portion 190 from interfering with the dust case 112 when the link portion 190 rotates about the lever hinge axis 152 by the operation of the pushing rod 200 to be. The second gap G2 is not limited and is satisfied if the movement of the link portion 190 is not disturbed by the side surface of the dust-collecting case 112. [

At least a part of the pushing rod 200 is supported by the dust-collecting case 112 to move up and down. The returning elastic part 202 is provided to return to the original position after the pressing part 204 is pressed .

Hereinafter, the operation of the dust collecting assembly having the above-described structure and the vacuum cleaner having the dust collecting assembly will be described.

The dust collecting device 110 is coupled to the cleaner main body 10, and dust or dirt in the air flowing into the main body is collected.

When the dust collector 110 is filled with dust or dirt, the dust cover 120 is opened to empty the dust collector 110, and the dust or dirt inside the dust collector 110 is discarded.

For this purpose, the lever 140 provided on the side of the dust collecting apparatus 110 is operated.

The lever body 150 hinges about the lever hinge shaft 152 and the fixing protrusion 160 provided at the end of the lever body 150 also hinges and rotates, And is separated from the engagement protrusion 125 provided on the base plate 120.

However, in this process, there is a problem that the discharge cover 120 is caught in the dust case 112 by the dust or the sealing member 123, and the discharge cover 120 may not operate.

The pushing protrusion 170 provided on the lever body 150 presses the pushing protrusion 126 provided on the engaging protrusion 125 with the operation of releasing the fixing protrusion 160 from the engaging protrusion 125 So that the discharge cover 120 is pushed out.

That is, the pressing surface 172 of the pushing projection 170 presses the pressured surface 126a of the engaging projection 125 in the opening direction of the discharge cover 120, so that, together with the load of the discharge cover 120, A pressing force can be provided so that the opening 120 can open the opening 112a.

In this way, the lever 112 can be directly operated to open or close the opening 112a, but the opening 112a can be indirectly opened or closed through the operation of the push rod.

When the push rod is pressed against the push rod 204, the link projection 206 of the push rod moves along the link groove 192 of the lever 140 so that the lever pushes the push portion 180 toward the dust case 112 , The same result as that the lever directly operates the pressing portion 180 is obtained.

It is possible to open and close the opening 112a at a position spaced apart from the discharge cover 120, thereby preventing dust, dirt, and scattering around the user.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

1: cleaner 10: cleaner body
20: inhaler 30: handle
100: dust collecting assembly 110: dust collecting apparatus
112: dust collecting case 112a: opening
114: hinge coupling portion 116: opening / closing unit guide
116a: Hinge groove 118: Pushing load rail
120: discharge cover 122: cover hinge
124: engaging member 125:
125a: Defendable front face 126:
126a: Pressurized face
130: opening / closing unit 140: lever
150: lever body 150a: first body
150b: second body 151: hinge projection
152: Lever hinge shaft 160: Fixing projection
162: fixing surface 164:
170: pushing projection 172: pressing face
172a: first part 172b: second part
180: lever pressing portion 182: elastic member
190: link unit 192: link home
200: pushing rod 202: returning elastic part
204: pressing portion 206: link projection

Claims (23)

A cleaner main body;
A dust collecting device coupled to the cleaner main body for collecting dirt in the air, the dust collecting device having an opening formed therein, a discharge cover for opening and closing the opening, and a latching member projecting from one end of the discharge cover;
And an opening / closing unit having a lever which selectively restricts the discharge cover at one side of the dust collecting case to control opening / closing of the opening,
The lever
A lever body hinged to the dust collecting case and hinged about a lever hinge axis to be hinged;
A locking protrusion provided on the lever body to lock the locking member;
And a pushing protrusion provided on the lever body and pushing the latching member when the latching protrusion releases the latching of the latching member. The method according to claim 1,
Wherein the pushing protrusion pushes the latching member by the hinge rotation of the lever body. The method according to claim 1,
Wherein,
A locking protrusion restrained by the fixing protrusion;
And a pressing protrusion provided on the locking protrusion and pressed by the pushing protrusion. The method according to claim 1,
Wherein the pushing projection extends from the lever body toward the dust collection case. The method of claim 3,
The pushing projection
And a pressing surface which forms an acute angle from the lever body with respect to a direction from the lever hinge shaft to the fixing protrusion in the lever body and pushes the pressing protrusion. 6. The method of claim 5,
The press-
And a pressurized surface opposed to the pressing surface to correspond to the pressing surface. The method according to claim 1,
Wherein the engaging member is provided to be positioned between the pushing projection and the fixing protrusion when the opening is closed by the discharge cover. The method according to claim 1,
The lever
And a lever pressing portion provided on one end of the lever body on which the fixing protrusion is disposed, the lever being provided on the other end to apply an external force to the lever. 9. The method of claim 8,
The lever
And an elastic member provided between the other side of the lever pressing portion and the dust collecting case and separating the lever from the dust collecting case. The method according to claim 1,
The opening /
And a rod-shaped pushing rod which is formed along the side surface of the dust collecting case and transmits a pressing force to the lever at the other end. 11. The method of claim 10,
The pushing rod
A pushing portion provided at one end of the pushing rod to reciprocate along the side surface of the dust collecting case in response to an external force;
And a link protrusion provided at the other end and linked with the lever. 12. The method of claim 11,
The lever
And a link portion having a rail-shaped link groove to allow the link protrusion to move. 13. The method of claim 12,
Wherein the link portion is provided such that its end portion is inclined toward the side of the dust collecting case with respect to the longitudinal direction of the lever body. A dust collecting case having an opening whose one side is opened;
A discharge cover which has a cover body and an engaging member protruding from one end of the cover body to open and close the opening of the dust collecting case;
And a lever which selectively restricts the latching member to control the opening and closing of the opening and presses the latching member together with release of restraint to the latching member when the opening is opened. 15. The method of claim 14,
Wherein the lever is hinged to the dust collection case to control opening and closing of the opening by a hinge rotation. 15. The method of claim 14,
The lever
A lever body hinged to a side of the dust collecting case with a lever hinge shaft;
A locking protrusion provided on the lever body to selectively restrict the locking member;
And a pushing protrusion provided on the lever body so as to be spaced apart from the fixing protrusion so as to press the engaging member in a direction in which the discharging cover is spaced apart from the opening when releasing the restricting of the fixing protrusion to the discharging cover . 17. The method of claim 16,
The lever body includes:
A first body having the fixing protrusions and the pushing protrusions;
And a second body provided on the other side of the first body with respect to the lever hinge axis and having a lever pressing portion for hinge rotation of the lever. 18. The method of claim 17,
The lever
And an elastic member provided between the second body and the dust collecting case so that the first body is in close contact with the latching member. 17. The method of claim 16,
Wherein,
A locking protrusion provided to protrude from the cover body in the direction of the outer periphery and selectively restrained by the fixing protrusion;
And a pushing protrusion provided on the hooking protrusion and pressed by the pushing protrusion. 20. The method of claim 19,
Wherein the pressing protrusion is formed to protrude perpendicularly from the locking protrusion. 17. The method of claim 16,
Wherein the pushing projection includes a pressing surface provided to be inclined with respect to a rotating direction about the lever hinge axis,
Wherein the pressing surface presses the pressurized surface of the corresponding pressing projection to press the discharge cover together with releasing the engagement of the engaging member through the rotation of the lever. 15. The method of claim 14,
Further comprising a pushing rod formed along the side surface of the dust collecting case and configured to be moved forward and backward by a pressing force acting on one end and to be transmitted to the lever at the other end. 23. The method of claim 22,
The lever
And the link portion is linked with the pushing rod to convert the forward and backward movement of the pushing rod into a hinge rotation of the lever.

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