KR101223324B1 - Height adjusting structure of suction nozzle for vaccum cleaner - Google Patents

Abstract

The present invention relates to a suction nozzle of a vacuum cleaner, and more particularly, to a height adjusting structure of the suction nozzle of the vacuum cleaner capable of adjusting the height of the suction nozzle.

Height adjusting structure of the suction nozzle of the vacuum cleaner according to the present invention for achieving the above object is a suction nozzle for cleaning the foreign material of the bottom surface; An operation unit provided at a rear side of the suction nozzle to enable a user's operation; A rotating member rotatable by the operating force of the operation unit; A cam eccentrically coupled to the rotating member; A link unit for transmitting an operation force of the operation unit to the rotation unit; And a height adjusting part whose height is adjusted by the rotation of the cam.

According to such a structure, the height of a nozzle main body can be selectively adjusted according to the state of a bottom surface, it can maintain the same rotational performance of an agitator, and the cleaning surface to be cleaned can be performed smoothly.

Suction nozzle, height adjustable

Description

Height adjusting structure of suction nozzle for vaccum cleaner}

1 is an external perspective view of an upright type vacuum cleaner equipped with a suction nozzle according to the spirit of the present invention.

Figure 2 is an external perspective view of a suction nozzle according to the spirit of the present invention.

3 and 4 is an exploded perspective view schematically showing the height adjustment structure of the suction nozzle according to the spirit of the present invention.

Figure 5 is a side view schematically showing a height adjustment structure of the suction nozzle according to the spirit of the present invention.

6 is an enlarged view of a portion A of FIG. 5.

7 and 8 is an operating state diagram of the height adjustment structure according to the spirit of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: nozzle body 160: rotating member

170: cam 180: height adjustment

190: rotation guide member 200: connection member

300: main body coupling portion 330: operation portion

340: link unit 350: elastic member

The present invention relates to a suction nozzle of a vacuum cleaner, and more particularly, to a height adjusting structure of a vacuum cleaner suction nozzle capable of adjusting the height of the suction nozzle.

In general, a vacuum cleaner is a device that sucks air contained in a foreign material by using a vacuum pressure generated by a vacuum motor mounted inside the main body, and then filters the foreign material in the main body.

The vacuum cleaner is divided into a canister method in which a suction nozzle which sucks air containing foreign substances on the surface to be cleaned is provided separately from the main body and connected by a connecting pipe, and an upright method in which the suction nozzle is integrally formed with the main body. can do.

On the other hand, the upgraded vacuum cleaner is a suction body for suctioning foreign matters on the surface to be cleaned by a vacuum cleaner body having a built-in vacuum motor for generating a suction force and a suction force generated by being connected to the main body in a rotatable manner below the cleaner body. It comprises a nozzle, a connection hose for connecting the main body and the suction nozzle, and the like.

In addition, the suction nozzle is provided with an agitator rotated by an external drive source to facilitate the cleaning of the bottom, in particular, the bottom such as a carpet.

The operation of the vacuum cleaner constituting the above-described configuration will be briefly described. When the power is applied to the cleaner body and the vacuum motor is driven, suction force is generated. Then, the user grabs the handle provided in the main body and performs cleaning while moving the suction nozzle back and forth. Then, air containing foreign matter on the surface to be cleaned is sucked into the suction nozzle by the suction force.

And, the air containing the foreign material is introduced into the cleaner body through the connection hose. Then, the air containing the foreign matter sucked into the cleaner body flows therein, and the foreign matter is separated, and the separated foreign matter is stored in the cleaner body, and the separated air is discharged to the outside of the cleaner body.

However, in the conventional upright type vacuum cleaner, since the suction nozzle is moved back and forth while the main body and the suction nozzle are connected, there is a problem that the suction nozzle cannot be moved when there is an obstacle or a low jaw on the bottom surface.

In this case, the user has to avoid obstacles or jaws on the bottom surface by lifting the suction nozzles coupled with the main body, which is a cumbersome and inconvenient user problem.

In addition, in the case of cleaning the carpet or the like, when the carpet is high, the agitator provided on the suction nozzle is in close contact with the wool of the carpet, which causes the agitator not to rotate.

Therefore, there is a need for an upright type vacuum cleaner capable of freely moving the suction nozzle regardless of the state of the bottom surface and capable of smoothly cleaning the bottom surface.

The present invention has been proposed to solve the above problems, and an object of the present invention is to propose a height adjusting structure of a suction nozzle of a vacuum cleaner, the height of which can be adjusted according to the state of the bottom surface.

In addition, it is an object of the present invention to propose a height adjusting structure of the suction nozzle of the vacuum cleaner that can be cleaned smoothly regardless of the state of the bottom surface, the movement of the suction nozzle is free.

The height adjusting structure of the suction nozzle of the vacuum cleaner according to the present invention for achieving the object as described above is a suction nozzle for cleaning the foreign material of the bottom surface; An operation unit provided at a rear side of the suction nozzle to enable a user's operation; A rotating member rotatable by the operating force of the operation unit; A cam eccentrically coupled to the rotating member; A link unit for transmitting the operation force of the operation unit to the rotating member; A rotation guide member coupled to the rotation member and configured to rotate the rotation member by an operation force transmitted from the link unit; And a height adjusting part whose height is adjusted by the rotation of the cam.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

1 is an external perspective view of an upright type vacuum cleaner equipped with a suction nozzle according to the spirit of the present invention.

Referring to FIG. 1, an upright type vacuum cleaner 1 having a suction nozzle according to the spirit of the present invention includes a suction nozzle 10 that sucks air containing foreign substances while moving along a bottom surface, and the suction nozzle. Cleaner main body 50 is a motor for generating a suction force for sucking the air containing the foreign matter through the (10), and the handle portion 30 is provided to the cleaner body 50 to enable the user's grip And, a dust collecting unit 40 that serves to filter foreign matter in the air sucked through the suction nozzle 10 is included.

In detail, the suction nozzle 10 is a portion for sucking air through the suction port formed on the bottom surface while moving in a state close to the bottom surface. That is, a suction port is formed on the bottom of the suction nozzle 10 to form a suction passage of external air to guide the inflow of air.

On the other hand, the cleaner body 50 is connected by the suction nozzle 10 and the delivery hose (not shown) is configured to introduce the air containing the foreign matter sucked through the suction nozzle 10.

The cleaner body 50 includes a main body 510 in which the vacuum motor is built, and an auxiliary body 520 provided above the main body 510 to support the dust collecting unit 40. It is composed.

In detail, both sides of the main body 510 are coupled to the suction nozzle 10 so as to be rotatable with respect to the suction nozzle 10. In addition, a main body discharge part 512 is formed on the front surface of the main body 510 to pass the dust collecting unit 40 and the foreign air filtered out to the outside.

The auxiliary body 520 may include a first body 522 having a passage through which air introduced into the cleaner body 50 may move to the dust collecting unit 40, and the inside of the auxiliary body 520. The second body 524 is formed with a passage for allowing the air separated from the dust collecting unit 40 to move to the main body 510 side.

On the other hand, the dust collecting unit 40 can filter foreign matter by the cyclone method, is formed in a cylindrical shape is attached to and detached from the cleaner body (50).

When power is applied to the vacuum cleaner 1 by the above configuration, the vacuum motor provided in the main body 510 is driven, and foreign matter is included in the suction nozzle 10 by the suction force generated by the vacuum motor. Air is inhaled. In addition, the sucked air is sucked into the cleaner body 50 and introduced into the dust collecting unit 40 through the first body 522.

Then, the foreign matter is filtered by the cyclone method in the dust collecting unit 40, and the air from which the foreign matter is removed is discharged to the second body 524. The air discharged to the second body 524 is introduced to the main body 510 again and then discharged to the outside of the vacuum cleaner 1 through the main body discharge part 512.

Hereinafter, the configuration of the suction nozzle 10 will be described in detail.

2 is an external perspective view of a suction nozzle according to the spirit of the present invention.

2, the suction nozzle 10 according to the spirit of the present invention, the nozzle body 100 for sucking air containing foreign matter on the bottom surface, is connected to the nozzle body 100 and the main body ( A pair of main body coupling parts 300 coupled to both sides of the 510, and a connection member 200 connecting the nozzle body 100 and the main body coupling part 300 are included.

In detail, the nozzle body 100 includes a base 110 forming a bottom appearance of the nozzle body 100, a front cover 120 forming a front appearance of the nozzle body 100, and the nozzle body. The intermediate cover 130 which forms a side appearance of the 100 and the connection member 200 is coupled to, an upper cover 140 which forms an upper appearance of the nozzle body 100, and the intermediate cover 130. It is coupled to the side cover 150 to prevent the connection member 200 is separated from the outside in a state coupled to the intermediate cover 130 is included.

In more detail, the base 110 has a suction port (see 112 in FIG. 3) to which the foreign material is sucked is formed long left and right. In addition, an agitator 111 may be provided at an upper side of the suction port (see 112 of FIG. 3) to shake off the foreign matter on the surface to be cleaned by an external driving source. Here, the external drive source may include a rotary motor for generating rotary power and a power transmission unit for transmitting the rotary power of the rotary motor to the agitator 111. Detailed description of the agitator 111 and the driving source will be omitted.

On the other hand, the body coupling portion 300, the left coupling portion 302 and the right coupling portion 304 is provided with a pair is rotatably coupled to the cleaner body 50 on both sides of the cleaner body 50.

In detail, the rear side of the left coupling portion 302 is provided with a height adjustment lever 330 to adjust the height of the nozzle body 100 according to the state of the bottom surface.

The height adjustment lever 330 is coupled to a link unit (to be described later) consisting of a plurality of link members to operate the cam (described later) provided in the nozzle body 100 to adjust the height of the nozzle body 100 Be sure to The height adjustment structure will be described later with reference to the drawings.

In addition, a rotation lever 390 is formed on the rear side of the right coupling part 304 to control the rotation of the cleaner body 50.

Therefore, when the user grasps the handle part 30 and pulls the cleaner body 50 backward while pressing the pivot lever 390 using the foot, the cleaner body 50 is inclined backward. .

In this case, the user can clean the bottom surface while adjusting the cleaner body 50 to a desired angle according to his height.

The main body coupling part 300 includes an inner cover 310 coupled to the cleaner body 50 and an outer cover 320 coupled to the inner cover 310.

In detail, the connection member 200 is coupled to the inner cover 310. In addition, the connection member 200 is fastened to the inner cover 310 in the thickness direction, the inner cover 310 is formed with a cutting groove 312 is cut in order to fasten the connection member 200 is formed.

In addition, a fastening protrusion (see 314 in FIG. 3) to be coupled to the connection member 200 is protruded to the inner cover 310. In this case, the inner cover 310 and the connection member 200 are integrally moved in a coupled state, whereby at least two fastening protrusions (see 314 in FIG. 3) are provided so that the connection member 200 is provided. ) Is completely fixed to the inner cover 310.

On the other hand, the outer cover 320 shields the incision groove 312 in a state in which the connection member 200 is coupled to the inner cover 310 through the incision groove 312 of the inner cover 310. The shield 322 is formed by extension.

In addition, a moving wheel 380 may be mounted on the outer cover 320 to facilitate the movement of the suction nozzle 10.

On the other hand, one side of the connection member 200 is coupled to the inner cover 310, the other side is coupled to the intermediate cover 130.

In detail, a protrusion insertion hole (see 202 of FIG. 3) into which the fastening protrusion 314 of the inner cover 310 is inserted is formed at a position and the number corresponding to the fastening protrusion 314 on one side of the connection member 200. do.

Therefore, when the connection member 200 is coupled in the thickness direction of the inner cover 310, the fastening protrusion 314 is inserted into the protrusion insertion hole 202, and the connection member (to the inner cover 310) Since the cutting groove 312 is shielded by the shielding portion 322 in the coupled state, the connection member 200 may be coupled to the main body coupling portion 300 without an additional fastening means.

On the other side of the connection member 200, a protrusion coupling hole (see 204 of FIG. 3) is formed to be coupled to a fastening protrusion (not shown) of the intermediate cover 130.

Here, one reason why the protrusion coupling hole (refer to 204 of FIG. 3) is formed at the other side of the connection member 200 is to allow the nozzle body 100 to be rotated in a state of being coupled with the connection member 200. This is to allow the movement of the nozzle body 100 to be performed smoothly. Therefore, a fastening protrusion (not shown) formed in the intermediate cover 130 serves as a rotation shaft of the nozzle body 100.

Hereinafter, the height adjusting structure of the suction nozzle 10 will be described in detail.

3 and 4 are exploded perspective views schematically showing the height adjustment structure of the suction nozzle according to the spirit of the present invention. In addition, Figure 5 is a side view schematically showing the height adjustment structure of the suction nozzle according to the spirit of the present invention, Figure 6 is an enlarged view of portion A of FIG.

3 to 6, the height adjusting structure of the suction nozzle 10 according to the spirit of the present invention is provided at the rear side of the main body coupling part 300 so that a user manipulates the height of the suction nozzle 10. The operation unit 330, the link unit 340 for transmitting the operating force of the operation unit 330, and the rotating member 160 is rotated at a predetermined angle by the operating force transmitted by the link unit 340 And, the cam 170 is eccentrically coupled to the rotating member 160, and the height adjustment member 180 is adjusted to the height of the suction nozzle 10 by the rotation of the cam 170.

In detail, the operation unit 330 is a portion pressed by the user by the foot, it is provided rotatably by the hinge 332 to the main body coupling portion 300. At this time, the operation unit 330 preferably has a strength that can withstand the pressing force of the user.

On the other hand, the link unit 340 is a portion for transmitting the operating force of the operation unit 330 to the rotating member 160, the drive link 342 is coupled to the bottom surface of the operation unit 330, and the main body coupling portion An intermediate link 344 rotatably coupled to the fixed shaft 348 of the 300, one side of which is hinged to the driving link 342, and one side of which is coupled to the intermediate link 344 to the driving link. A driven link 346 is included that transmits the operating force of 342 to the rotating member 160.

In addition, a coupling protrusion 345 is formed at the intermediate link 344 to be coupled to the driven link 346, and a protrusion insertion hole 347 is inserted into the driven link 344 to insert the coupling protrusion 345. ) Is formed.

In addition, when the driving unit 330 is pressed on the driven link 346 and the force for pressing the operating unit 330 while the link unit 340 is moved, the position of the link unit 340 is determined. One side of the elastic member 350 to be returned to its original state is connected. In this case, the other side of the elastic member 350 may be coupled to the fastening protrusion 314 of the inner cover 310.

Referring to the operation of the link unit 340 by the above configuration, when the user presses the operation unit 330, the operation unit 330 is rotated in the counterclockwise direction in FIG.

Then, the driving link 342 coupled to the operation unit 330 is pressed, and the driving link 342 is moved to the right along the inner circumferential surface of the inner cover 310. When the driving link 342 is moved to the right side, the lower side of the intermediate link 344 coupled with the driving link 342 is also moved to the right side. Then, the intermediate link 344 is rotated a predetermined angle in the counterclockwise direction. When the intermediate link 344 is rotated in the counterclockwise direction, the driven link 346 coupled to the intermediate link 344 on the upper side is moved to the left side.

In addition, when the driven link 346 is moved to the left side, the elastic member 350 is tensioned, and the rotating member 160 is rotated counterclockwise.

On the other hand, the rotating member 160 is a portion that is rotated in one direction by the operating force transmitted by the driven link 346, the rotating shaft 162 is supported on the support member 119 protruded from the base 110 Combined. In addition, the cam 170 is coupled to the rotation shaft 162 so as to be eccentric with the rotation member 160.

In detail, the rotation member 160 is provided with a rotation guide member 190 to allow the rotation of the rotation member 160 to be selectively performed inside. That is, the rotation guide member 190 allows the rotation member 160 to rotate only by a predetermined angle in one direction.

Referring to FIG. 6, the rotation guide member 190 is coupled to the rotation shaft 162. In addition, the rotation guide member 190 is a coupler 192 coupled to the other side of the driven link 346, and the elastic support for allowing the rotation guide member 190 to be supported by the rotation member 160 ( 194 is formed.

In detail, the coupler 192 is formed in a ring shape, the elastic support 194 is curved to a predetermined curvature is in close contact with the inside of the rotating member 160.

Here, a plurality of engaging portions 164 formed in a shape corresponding to the coupler 192 are formed inside the rotating member 160 in the circumferential direction. At this time, the plurality of locking portions 164 are formed to face in one direction.

That is, when the rotation guide member 190 is rotated in one direction, the engaging sphere 192 and the engaging portion 164 is a locking action is performed, when the rotation guide member 190 is rotated in the other direction The coupler 192 and the engaging portion 164 does not perform the locking action.

On the other hand, on the outer circumferential surface of the rotating member 160 is formed a locking groove 166 is inserted into the stopper 116 is fixed to the position in a state rotated by a predetermined angle by the rotation guide member 190. In addition, the stopper 116 is extended from the upper surface of the base 110.

In detail, since the elastic member 350 is coupled to the driven link 346 coupled with the rotation guide member 190, when the pressing force applied to the operation unit 330 is removed, the driven link 346 moved to the left is The elastic member 350 is moved back to the right side by the restoring force. In addition, when the driven link 346 is moved to the right, the rotation guide member 190 is rotated in the clockwise direction.

At this time, since the rotation guide member 190 is supported by the rotation member 160, when the rotation guide member 190 is rotated in the clockwise direction, the rotation member 160 also tries to rotate in the clockwise direction.

However, when the rotation member 160 rotates in the clockwise direction, a problem arises in that the height-adjusted state returns to the previous state.

Therefore, in the present invention, even if the operation force of the operation unit 330 is removed and the rotation guide member 190 returns to its original position, the position is fixed in the state in which the rotation member 160 is rotated by the stopper 116. The height of the suction nozzle 10 is adjusted to be maintained.

On the other hand, the cam 170 is a portion to rotate the height of the height adjustment unit 180, while rotating together when the rotation member 160 is rotated. As described above, the cam 170 is eccentrically coupled to the rotation member 160. In addition, the cam 170 is in contact with the upper surface of the height adjusting unit 180 when rotating.

Here, the reason why the cam 170 is eccentrically coupled to the rotating member 160 is to allow the height adjusting unit 180 to be rotated at a predetermined angle step by step so that the radius of the cam 170 is different. to be.

That is, when the portion of the small radius of the cam 170 is in contact with the height adjusting unit 180, the height adjusting unit 180 is rotated to a relatively small size to the state that the suction nozzle 10 is lowered in height Will be maintained. On the other hand, when a large radius of the cam 170 is in contact with the height adjusting unit 180, the height adjusting unit 180 is rotated at a relatively large angle so that the suction nozzle 10 is a high height Will be maintained.

On the other hand, the height adjustment unit 180 is a portion for adjusting the height of the suction nozzle 10, the contact portion 182 and the contact with the cam 170, the contact portion 182 is formed integrally with the Rotation axis 184, which is the rotation center of the height adjustment unit 180, an extension portion 186 extending from the rotation shaft 184, and auxiliary wheels 188 formed on both sides of the extension portion 186 is included. do.

In detail, the height adjusting unit 180 is provided on the bottom surface of the base 110 and is configured to be rotatable based on the rotation shaft 184. In addition, the contact portion 182 is in contact with the cam 180 in a state of penetrating the base 110.

Hereinafter, the operation of the height adjustment structure will be described.

7 and 8 are views showing the operating state of the height adjustment structure according to the spirit of the present invention, Figure 7 is a view showing the operating state of the height adjustment structure in a state that the operation portion is pressed, Figure 8 is a pressing force applied to the operation unit. The figure which shows the operating state of the height adjustment structure in the removed state.

When cleaning a bottom surface such as a carpet, the height of the suction nozzle 10 is adjusted to smoothly rotate the agitator provided in the suction nozzle 10.

Here, when the height of the suction nozzle 10 is not adjusted, a portion of the small radius of the cam 170 is in contact with the contact portion 182 of the height adjusting unit 180.

First, referring to FIG. 7, when the user presses the manipulation unit 330 with his feet, the manipulation unit 330 is rotated counterclockwise.

Then, when the driving link 342 coupled to the operation unit 330 is pressed, the driving link 342 is moved to the right along the inner circumferential surface of the inner cover 310. When the driving link 342 is moved to the right side, the lower side of the intermediate link 344 coupled to the lower side of the driving link 342 is moved to the right side. Then, the intermediate link 344 is rotated a predetermined angle in the counterclockwise direction. When the intermediate link 344 is rotated counterclockwise, the driven link 346 is moved to the left.

In addition, when the driven link 346 is moved to the left side, the elastic member 350 is tensioned, and the rotating member 160 is rotated counterclockwise.

In detail, when the driven link 346 is moved to the left side, the rotation guide member 190 connected with the driven link 346 is rotated counterclockwise. Here, when the rotation guide member 190 is rotated in the counterclockwise direction, the engaging portion 164 and the coupling sphere 192 performs a locking action, the rotation member 160 is the rotation guide member 190 It is rotated counterclockwise with the rotation of.

When the rotating member 160 is rotated in the counterclockwise direction, the cam 170 eccentrically coupled with the rotating member 160 is rotated in the counterclockwise direction together with the rotating member 160. When the cam 170 is rotated, a portion having a large radius of the cam 170 presses the contact portion 182, and a portion having a large radius of the cam 170 presses the contact portion 182. Accordingly, the height adjusting unit 180 is rotated in a counterclockwise direction about the rotation shaft 182.

As the height adjustment unit 180 is rotated in the counterclockwise direction, the nozzle body 100 is raised to be spaced apart from the bottom surface.

Therefore, as the nozzle body 100 rises from the bottom surface, the agitator can be rotated smoothly.

Meanwhile, when the pressing force applied to the operation unit 330 is removed, the driven link 346 is moved to the right side by the restoring force of the elastic member 350 as shown in FIG. 8. When the driven link 346 moves to the right, the intermediate link 344 rotates clockwise, and when the intermediate link 344 rotates clockwise, the driving link 342. Will move to the left. When the driving link 342 is moved to the left side, the operation unit 330 is moved upward to return to the state before operating the operation unit 330.

In addition, when the driven link 346 is moved to the right, the rotation guide member 190 is rotated by a predetermined angle clockwise. At this time, since the rotation guide member 190 is supported by the rotation member 160, when the rotation guide member 190 is rotated clockwise, the rotation member 160 also tries to rotate clockwise.

However, the rotation member 160 is not rotated by the stopper 116, so that the rotation member 160 is fixed in the rotated position, the height of the suction nozzle 10 is adjusted The state is maintained.

As a result, the rotating member 160 is stopped, and the rotating member 160 rotates in the rotating member 160 as the driven link 346 moves to the right.

As the height of the nozzle body 100 is selectively adjusted by the height adjusting structure of the present invention, the surface to be cleaned can be smoothly cleaned regardless of the state.

According to the present invention, it is possible to selectively adjust the height of the nozzle body according to the state of the bottom surface by the height adjustment structure to maintain the same rotational performance of the agitator, smooth cleaning of the surface to be cleaned Done.

In addition, according to the suction nozzle of the present invention, the suction nozzle is composed of a main body engaging portion, the connecting member and the nozzle body, by adjusting the height of the nozzle body by the height adjustment structure, the nozzle body even with a small force The effect of being able to adjust the height of the.

Claims (8)

A suction nozzle for cleaning foreign substances on the bottom surface; An operation unit provided at a rear side of the suction nozzle to enable a user's operation; A rotating member rotatable by the operating force of the operation unit; A cam eccentrically coupled to the rotating member; A link unit for transmitting the operation force of the operation unit to the rotating member; A rotation guide member coupled to the rotation member and configured to rotate the rotation member by an operation force transmitted from the link unit; And Height adjustment structure of the suction nozzle comprises a; height adjustment unit for adjusting the height by the rotation of the cam. The method of claim 1, The rotating member is a height adjusting structure of the suction nozzle of the vacuum cleaner is rotated only in one direction. The method of claim 1, The suction nozzle is a height adjusting structure of the suction nozzle of the vacuum cleaner further comprises a stopper for fixing the position in a state in which the rotating member is rotated at a predetermined angle. The method of claim 1, The height adjusting portion and the contact portion in contact with the cam, Is formed integrally with the contact portion, the rotation axis which is the rotation center of the height adjustment portion, An extension part extending from the rotation shaft; Height adjusting structure of the suction nozzle of the vacuum cleaner includes at least one wheel formed in the extension. The method of claim 1, Further comprising a rotating shaft coupled to the rotating member, The rotation guide member is a height adjusting structure of the suction nozzle of the vacuum cleaner is coupled to the rotating shaft. 6. The method of claim 5, The rotation guide member, A locking part which engages with the rotating member when rotating in one direction; Height adjustment structure of the suction nozzle of the vacuum cleaner includes a support for supporting the rotating guide member in the rotating member. The method of claim 1, The link unit A drive link connected to the operation unit; A driven link transferring the driving force transmitted from the driving link to the rotating member; Height adjusting structure of the suction nozzle of the vacuum cleaner includes an intermediate link connecting the drive link and the driven link. The method of claim 1, And an elastic member coupled to the link unit to allow the link unit to elastically move.

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