KR20210114164A - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner to selectively limit expansion and contraction of a pipe assembly. According to the present invention, the vacuum cleaner comprises: a first pipe having a locking groove formed on one side thereof; a second pipe communicating with the first pipe and allowing one side of the first pipe to be inserted thereinto; and a selective locking part provided to selectively limit movement between the first pipe and the second pipe while the first pipe is inserted into the second pipe. The selective locking part includes: a locking member having a shape corresponding to the locking groove and capable of moving in a first direction accommodated in the locking groove or a second direction opposite thereto; an elastic member elastically pressing the locking member in the first direction; an operation unit provided on the outside of the second pipe and capable of moving between the first position where an external force is applied and a second position where the external force is released; and a plurality of transmission members provided to be spaced apart from each other at a plurality of positions to transmit the external force applied to the operation unit to the locking member. As the operation unit moves from the second position to the first position, the locking member is moved to the second direction by the plurality of transmission members to be released from the locking groove.

Description

vacuum cleaner {VACUUM CLEANER}

The present invention relates to a vacuum cleaner that sucks in air on a floor surface, filters it and discharges it, and more particularly, has a structure that can selectively restrict expansion and contraction of a pipe assembly forming a flow path for guiding the sucked air to a body It's about vacuum cleaners.

A vacuum cleaner is a device that sucks in air from the floor by a motor, removes various foreign substances such as dust, fine dust, bacteria, mold, etc. It is a household appliance that performs the role of cleaning. Depending on the design method, the vacuum cleaner is provided to not only suck in air, but also to spray steam on the floor to provide foreign substances on the floor.

The vacuum cleaner includes a suction pipe that sucks air from a bottom surface and provides a flow path for guiding the air to the inside of the body for removing foreign substances. The suction pipe has a double pipe structure in which two pipes having different diameters are overlapped, and the overall length is adjustable by sliding one pipe relative to the other pipe. For example, in the structure of the suction pipe in which the outer pipe and the inner pipe are overlapped, a pressing button provided so that the user can press is installed on the outer pipe. When the user slides the outer pipe or the inner pipe in the longitudinal direction while pressing the pressure button, the overall length of the suction pipe is increased or decreased.

In the vacuum cleaner according to an embodiment of the present invention, a first pipe having a locking groove formed on one side thereof, a second pipe communicating with the first pipe and into which the one side of the first pipe is inserted, and the first pipe being the and a selective locking part provided to selectively restrict movement between the first pipe and the second pipe in a state inserted into the second pipe, wherein the selective locking part, A locking member having a shape corresponding to the locking groove and movable in a first direction accommodated in the locking groove or in a second direction opposite to the first direction, and elasticity for elastically pressing the locking member in the first direction a member, a manipulation unit provided on the outside of the second pipe and movable between a first position in a state in which an external force is applied and a second position in a state in which the external force is released; and a plurality of transmission members provided to be spaced apart from each other at a plurality of positions so as to transmit to the direction and is released from the locking groove.

In addition, the plurality of positions at which the plurality of transmission members are provided may be symmetrical with respect to the engaging member.

In addition, the plurality of transmission members may include a first transmission member provided rotatably by being pressed to the first extension of the operation unit, and being pressed to a second extension of the operation unit spaced apart from the first extension so as to be rotatable. and a second transmission member provided, wherein when the operation unit moves to the first position by the external force, the first transmission member and the second transmission member rotate to move the locking member in the second direction. can do.

In addition, when the external force is released, the first transmission member and the second transmission member are respectively pressed by the locking member moving in the first direction, and the first extension so that the manipulation unit moves to the second position. It is possible to press the part and the second extension part.

In addition, the second pipe has a through hole formed at a position corresponding to the locking hole of the first pipe, and the selective locking unit is coupled on the outer peripheral surface of the second pipe to cover the through hole and moves the manipulation unit It may further include a holder for possible support.

In addition, the holder includes a first manipulation guide for guiding the movement of the first extension of the manipulation unit, and a second manipulation guide for guiding the movement of the second extension of the manipulation unit, wherein the width of the first extension is the A width of the first manipulation guide may correspond to a width of the second extension part, and a width of the second extension may be provided to correspond to a width of the second manipulation guide.

In addition, the first extension part and the second extension part may be provided symmetrically with respect to the center of the manipulation part.

In addition, the elastic member may be interposed between the holder and the engaging member.

In addition, the locking groove may be vertically depressed from the outer circumferential surface of the first pipe.

1 is a perspective view showing a vacuum cleaner;
2 is a perspective view illustrating a suction pipe of a vacuum cleaner.
FIG. 3 is a cross-sectional view of a main part showing a state cut along line II of FIG. 2 when no external force is applied;
FIG. 4 is a cross-sectional view of a main part showing a state taken along line II-II of FIG. 2 when no external force is applied.
FIG. 5 is a cross-sectional view illustrating a state change when an external force is applied to the selective locking part of FIG. 3 .
FIG. 6 is a cross-sectional view illustrating a state change when an external force is applied to the selective locking part of FIG. 4 .
7 is a cross-sectional view showing a state in which an external force does not act on a selective locking part according to another embodiment.
FIG. 8 is a cross-sectional view showing an operation when an external force is applied to the selective locking part of FIG. 7 .

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. The embodiments described with reference to the drawings are not mutually exclusive unless otherwise stated, and a plurality of embodiments may be selectively combined and implemented in one device. A combination of a plurality of these embodiments may be arbitrarily selected and applied by a person skilled in the art in implementing the spirit of the present invention.

If, in the embodiment, there is a term including an ordinal number such as a first component, a second component, etc., these terms are used to describe various components, and the term distinguishes one component from another component. As used herein, these components are not limited in meaning by terms. Terms used in the embodiments are applied to describe the embodiments, and do not limit the spirit of the present invention.

In addition, when the expression “at least one” among a plurality of components in the present specification appears, this expression refers not only to all of the plurality of components, but also each one or these excluding the rest of the plurality of components. refers to any combination of

1 is a perspective view showing a vacuum cleaner;

As shown in FIG. 1 , the vacuum cleaner 1 according to the embodiment of the present invention is expressed as a grip-type cleaner in which the user can hold the cleaning main body 30 and perform cleaning. However, the vacuum cleaner 1 to which the spirit of the present invention can be applied is not limited to such a grip shape, and includes vacuum cleaners having various structures such as a shape in which the cleaning body is placed on the floor.

The vacuum cleaner 1 includes a cleaner head 10 provided to suck foreign substances on a surface to be cleaned, such as a floor, by the suction force of air. The cleaner head 10 is provided to suck in various foreign substances such as dust, fine dust, mold, etc. existing on the surface to be cleaned while moving in contact with the surface to be cleaned.

In addition, the vacuum cleaner 1 includes a cleaning main body 30 provided to collect foreign substances sucked through the cleaner head 10 . The cleaning main body 20 includes a motor (not shown) which will be described later for generating a suction force required to suck foreign substances on the surface to be cleaned, and a dust collector 30 in which the foreign substances sucked from the surface to be cleaned are accommodated. In the embodiment of the present invention, the dust collector 30 is a cyclone type, but this is only an example, and the type of the dust collector 30 applied to the vacuum cleaner 1 is not limited.

The vacuum cleaner 1 includes a suction pipe 30 provided to connect between the cleaner head 10 and the cleaner main body 20 . The suction pipe 30 includes a first pipe 1000 connected to the cleaner main body 20 , and a second pipe 2000 connected to the first pipe 1000 and the cleaner head 10 .

The cleaning main body 20 includes a suction nozzle 50 provided to be connected to the first pipe 1000 . The suction nozzle 50 has a suction port through which the first pipe 1000 can be inserted. The suction nozzle 50 is formed in the longitudinal direction of the first pipe 1000 is inserted and connected to the first pipe (1000). The suction nozzle 50 includes a suction nozzle connector 60 provided so that the first pipe 1000 can be detachably connected.

The cleaning main body 20 includes a handle 70 provided to be gripped by a user. The user may hold the handle 200 and move the cleaning main body 20 and the cleaner head 10 in the front-rear direction.

Hereinafter, the structure of the suction pipe 40 will be described.

2 is a perspective view illustrating a suction pipe of a vacuum cleaner.

As shown in FIG. 2 , the suction pipe 40 includes a first pipe 1000 and a second pipe 2000 . The first pipe 1000 and the second pipe 2000 may be implemented as pipes having various cross-sectional shapes, such as circular and polygonal shapes. However, the outer circumferential shape and the outer circumferential diameter of the first pipe 1000 are provided to correspond to the inner circumferential shape and the inner circumferential diameter of the second pipe 2000 , respectively. The lower end of the first pipe 1000 or the inner pipe is inserted into the upper end of the second pipe 2000 or the outer pipe, and the first pipe 1000 and the second pipe 2000 are provided to enable mutual movement.

The mutual movement method of the first pipe 1000 and the second pipe 2000 depends on which one of the first pipe 1000 and the second pipe 2000 is fixed to the cleaning main body 20 (refer to FIG. 1 ). There are two cases. One is a case in which the second pipe 2000 moves with respect to the first pipe 1000 in a state in which the first pipe 1000 is fixed to the cleaning main body 20 (see FIG. 1), and the other is a case where the second pipe ( 2000) is a case in which the first pipe 1000 moves with respect to the second pipe 2000 in a state where it is fixed to the cleaning main body 20 (refer to FIG. 1). Although the first case is described in this embodiment, the spirit of the present invention can be applied to the second case as well.

In the case of this embodiment, the second pipe 2000 increases the overall length of the suction pipe 40 by sliding in the X direction with respect to the first pipe 1000, and by sliding in the -X direction opposite to the X direction. The overall length of the suction pipe 40 is provided to be reduced. Meanwhile, the Y direction is a direction orthogonal to the X direction, and is a radial direction of the first pipe 1000 or the second pipe 2000 . The -Y direction is a direction opposite to the Y direction, and is the central direction of the first pipe 1000 or the second pipe 2000 .

The suction pipe 40 is provided with a selective locking part 3000 . The selective locking part 3000 allows the user to adjust the suction pipe 40 to a desired length, while maintaining the adjusted length of the suction pipe 40 . The selective locking part 3000 is installed on the outer circumferential surface of the upper end of the second pipe 2000 , and in a state in which the first pipe 1000 is inserted into the second pipe 2000 , the first pipe 1000 and the second pipe (2000) is provided to selectively restrict mutual movement. In the case of this embodiment, the selection locking unit 3000 selectively restricts the sliding movement of the second pipe 2000 in the X direction or the -X direction with respect to the first pipe 1000 .

One or more locking grooves 1100 are recessed along the X direction on the outer circumferential surface of the first pipe 1000 . The selective locking part 3000 is provided to be selectively caught in one or more locking grooves 1100 when no external force is applied, thereby preventing the second pipe 2000 from sliding with respect to the first pipe 1000 . . In addition, the selective locking part 3000 is provided to be detachable from the locking groove 1100 when an external force is applied, thereby allowing the second pipe 2000 to slide with respect to the first pipe 1000 .

Hereinafter, the structure and operation of the selection locking unit 3000 will be described.

FIG. 3 is a cross-sectional view of a main part showing a state cut along the line I-I of FIG. 2 when no external force is applied.

FIG. 4 is a cross-sectional view of a main part showing a state taken along line II-II of FIG. 2 when no external force is applied.

3 and 4, a through hole 2100 is formed in the upper end of the second pipe 2000, and the selective locking part 3000 covers the through hole 2100 so as to cover the second pipe 2000. is installed on The selection locking unit 3000 is made of the following components.

The holder 3100 is provided at the upper end of the second pipe 2000 to cover the through hole 2100 . The holder 3100 is supported by a manipulation unit 3200 , an elastic member 3400 , and transmission members 3500 and 3600 , which will be described later. A first manipulation guide 3110 is provided at the X-direction edge of the holder 3100, and a second manipulation guide 3120 is provided at the -X-direction edge of the holder 3100, respectively, and the Y direction and -Y of the manipulation unit 3200 guide the direction movement. The first manipulation guide 3110 and the second manipulation guide 3120 movably accommodate each end of the both sides of the manipulation unit 3200 . An elastic member support part 3130 protruding in the -Y direction is provided at the center of the inner surface of the holder 3100 . The elastic member support part 3130 supports the elastic member 3400 so as not to move from the current position along the X direction.

The locking part support member 3150 is provided in the through hole 2100 to face the inner surface of the holder 3100 . The locking part support member 3150 extends from the edge of the through hole 2100 toward the center of the through hole 2100 and is coupled to the second pipe 2000 or the holder 3100 . The locking part support member 3150 movably supports the locking member 3300 on the Y-direction plate surface facing the holder 3100 . In addition, the locking part support member 3150 serves as a stopper for limiting rotation of the transmission members 3500 and 3600 by a predetermined angle or more. For example, when the transmission members 3500 and 3600 rotate by a predetermined angle or more, they are prevented from rotating further by being in contact with the Y-direction plate surface of the stopping part support member 3150 .

The manipulation unit 3200 is movably supported on the upper plate surface of the holder 3100 in the Y direction. The manipulation unit 3200 includes a plate-shaped button 3210 provided to receive an external force on the upper plate surface of the holder 3100 . The manipulation unit 3200 includes a first extension unit 3220 provided at an X-direction edge of the button 3210 and movably supported by the first manipulation guide 3110 . In addition, the manipulation unit 3200 includes a second extension unit 3230 provided at the -X direction edge of the button 3210 and movably supported by the second manipulation unit guide 3120 . The first extension 3220 and the second extension 3230 are disposed symmetrically with respect to the center of the button 3210 .

When an external force acts on the button 3210 in the -Y direction, the first extension 3220 and the second extension 3230 are guided to the first operation additional guide 3110 and the second operation additional guide 3120, respectively. -Move down in the Y direction. Here, the width of the first extension part 3220 is provided to correspond to the width of the first manipulation guide 3110 , and the width of the second extension part 3230 is provided to correspond to the width of the second manipulation guide 3120 . do. Accordingly, even if an external force acts on an area biased in the X direction or a region biased in the -X direction, not the center of the button 3210, one side of the operation unit 3200 does not incline, and the entire operation unit 3200 moves in the -Y direction. can move to

The engaging member 3300 is supported in the holder 3100 so as to face the outer circumferential surface of the first pipe 1000 in the region where the through hole 2100 is located. The -Y direction end of the locking member 3300 has a shape corresponding to the locking groove 1100 and is provided to be accommodated in the locking groove 1100 . The locking member 3300 has a cross section of a "Y" or "T" shape as a whole. The Y-direction end of the locking member 3300 is in contact with the elastic member 3400 supported by the elastic member support part 3130 . The X-direction edge and the -X-direction edge of the locking member 3300 are provided to be in contact with the first transmission member 3500 and the second transmission member 3600 , respectively. The locking groove 1100 according to this embodiment is vertically recessed from the outer circumferential surface of the first pipe 1000, so that the locking member 3300 moving along the Y direction can be accommodated in or separated from the locking groove 1100. do.

The locking member 3300 is provided to be movable along the Y direction. The locking member 3300 may move between a locking position caught in the locking groove 1100 and a detached position separated from the locking groove 1100 . This figure shows a case in which the locking member 3300 is in the locking position. When the locking member 3300 is in the locking position, the locking member 3300 blocks the sliding movement of the second pipe 2000 with respect to the first pipe 1000 .

The elastic member 3400 is interposed between the holder 3100 and the locking member 3300 . The elastic member 3400 has one end supported by the elastic member support part 3130 and the other end elastically presses the locking member 3300, thereby biasing the locking member 3300 in the -Y direction. When no external force acts on the button 3210 , the locking member 3300 is in the locking position due to the elastic force of the elastic member 3400 . Although the elastic member 3400 in this embodiment is implemented as a coil spring, the type of the elastic member 3400 is not limited. The elastic member 3400 may be implemented with various types of springs, such as a leaf spring and a fluid spring.

A plurality of the transmission members 3500 and 3600 are arranged symmetrically and spaced apart from each other around the locking member 3300 inside the holder 3100 . The plurality of transmission members 3500 and 3600 are provided to respectively transmit an external force acting on one region of the button 3210 to the locking member 3300 . A plurality of transmission members (3500, 3600) can be applied to the structure of various design methods, one example will be described in this embodiment.

The plurality of transmission members 3500 and 3600 according to the present embodiment includes a first transmission member 3500 supported by the holder 3100 to correspond to the first extension 3220 of the operation unit 3200, and the operation unit 3200. ) includes a second transmission member 3600 supported by the holder 3100 to correspond to the second extension 3230 of the. The first transmission member 3500 and the second transmission member 3600 are disposed to be symmetrical with respect to the center of the through hole 2100 or the locking member 3300 . Although the present embodiment describes a case in which two transmission members 3500 and 3600 are provided, three or more transmission members 3500 and 3600 may be provided depending on the design method. Even in this case, the transmission members 3500 and 3600 are spaced apart so as to be symmetrical with respect to the center of the through hole 2100 .

A central region of the first transmission member 3500 is rotatably supported by the first rotation shaft 3510 . The first rotation shaft 3510 is coupled to the holder 3100 . The first transmission member 3500 extends such that one end faces the first extension 3220 of the button 3210 and the other end faces the locking member 3300 . Alternatively, one end of the first transmission member 3500 in the longitudinal direction extends in the radial direction of the through hole 2100 , and the other end in the longitudinal direction extends toward the center of the through hole 2100 . One end of the first transmission member 3500 is in contact with the inner surface of the button 3210 close to the first extension 3220 of the button 3210, and the other end of the first transmission member 3500 is a locking member 3300. is tangent to the lower side of the x-direction edge of

The second transmission member 3600 is rotatably supported in its central region by the second rotation shaft 3610 . The second rotation shaft 3610 is coupled to the holder 3100 . The second transmission member 3600 extends such that one end faces the second extension 3230 of the button 3210 and the other end faces the locking member 3300 . Alternatively, one end of the second transmission member 3600 in the longitudinal direction extends in the radial direction of the through hole 2100 , and the other end in the longitudinal direction extends toward the center of the through hole 2100 . One end of the second transmission member 3600 is in contact with the inner surface of the button 3210 close to the second extension 3230 of the button 3210, and the other end of the second transmission member 3600 is a locking member 3300. tangent to the lower side of the -x-direction edge of

Under this structure, an operation when an external force is applied to the button 3210 and then released will be described. The elastic member 3400 biases the locking member 3300 to the locking position in the -Y direction while being supported by the elastic member support part 3130 on the inner circumferential surface of the holder 3100 . By being accommodated in the -Y direction end of the locking member 3300 in the locking groove 1100, the locking member 3300 is caught in the locking groove 1100 at the locking position. Accordingly, the sliding movement of the second pipe 2000 in the X direction or the -X direction is blocked.

On the other hand, since the engaging member 3300 is biased in the -Y direction, the X-direction edge of the engaging member 3300 presses the other end of the first transmission member 3500 in the -Y direction, and The -X direction edge presses the other end of the second transmission member 3600 in the -Y direction. By this pressing force, the first transmission member 3500 rotates about the first rotation shaft 3510 , and one end of the first transmission member 3500 pushes the inner surface of the button 3210 to the first extension 3220 . move in the Y direction. At the same time, the second transmission member 3600 rotates about the second rotation shaft 3610 , and one end of the second transmission member 3600 pushes the inner surface of the button 3210 to open the second extension portion 3230 . move in the Y direction. As the first extension part 3220 and the second extension part 3230 move at the same time by the first transfer member 3500 and the second transfer member 3600 , the entire manipulation unit 3200 moves in the Y direction.

Hereinafter, an operation when an external force acts on the button 3210 in the -Y direction will be described.

5 is a cross-sectional view showing a change in state when an external force is applied to the selective locking part of FIG. 3 .

6 is a cross-sectional view showing a change in state when an external force is applied to the selective locking part of FIG. 4 .

5 and 6, an external force acts on the upper plate surface of the button 3210 in the -Y direction. For example, a case in which the user presses the button 3210 may be considered. When the user's pressing force on the button 3210 overcomes the elastic force of the elastic member 3400 , the button 3210 , the first extension 3220 , and the second extension 3230 move in the -Y direction. do.

The first extension 3220 moves along the first manipulation guide 3110 and presses one end of the first transmission member 3500 in the -Y direction. Accordingly, the first transmission member 3500 rotates about the first rotation shaft 3510 , and the other end of the first transmission member 3500 pushes the X-direction edge of the locking member 3300 . The other end of the first transmission member 3500 overcomes the elastic force of the elastic member 3400 and moves the engaging member 3300 in the Y direction. At the same time, the second extension part 3230 moves along the second manipulation guide 3120 , and presses one end of the second transmission member 3600 in the -Y direction. Accordingly, the second transmission member 3600 rotates about the second rotation shaft 3610 , and the other end of the second transmission member 3600 pushes the -X direction edge of the locking member 3300 . The other end of the second transmission member 3600 overcomes the elastic force of the elastic member 3400 and moves the engaging member 3300 in the Y direction.

As the first transmission member 3500 and the second transmission member 3600 lift the X-direction edge and the -X-direction edge of the locking member 3300 together, the locking member 3300 moves stably in the Y-direction. Accordingly, the locking member 3300 is moved to the release position, and the locking member 3300 is separated from the locking groove 1100 . Since the locking member 3300 is not caught in the locking groove 1100 , the second pipe 2000 can slide in the X direction or the -X direction.

The user slides the second pipe 2000 and releases the external force on the button 3210 in a state where the locking groove 1100 corresponding to the desired length is disposed to face the locking member 3300 . In this case, the locking member 3300 is caught in the locking groove 1100 by moving to the locking position, and becomes the state of FIGS. 3 and 4 above.

In this way, the selective locking unit 3000 according to the present embodiment transmits the external force on the manipulation unit 3200 to a plurality of regions of the corners of the engaging member 3300 using a plurality of transmission members 3500 and 3600 together. By doing so, the locking member 3300 can be stably separated from the locking groove 1100 . Accordingly, there is provided a vacuum cleaner in which the user can conveniently adjust the length of the suction pipe.

On the other hand, in the previous embodiment, while the plurality of transmission members (3500, 3600) is rotated about the rotation shaft (3510, 3610), the other end of each rotating transmission member (3500, 3600) lifting the engaging member (3300) structure has been described. However, the transmission members 3500 and 3600 transmit the user's external force from the manipulation unit 3200 to the engaging member 3300, or, conversely, transfer the elastic force of the elastic member 3400 from the engaging member 3300 to the manipulation unit 3200. configuration for it. If this object can be achieved, the transmission members 3500 and 3600 may be provided in any structure. Hereinafter, a case in which the transmission members 3500 and 3600 have a structure different from that of the previous embodiment will be described.

7 is a cross-sectional view showing a state in which an external force does not act on a selective locking part according to another embodiment.

As shown in FIG. 7 , in a state where one end of the first pipe 1000 is inserted into the second pipe 2000 , a locking groove 1100 is recessed on the outer circumferential surface of the first pipe 1000 . Among the components of the selective locking unit 4000 according to the present embodiment, the configuration regarding the holder 3100, the first operation guide 3110, the second operation additional guide 3120, and the elastic member 3400 is basically the previous implementation substantially the same as in the example. Among the components of the selective locking unit 4000 according to the present embodiment, what is substantially different from the previous embodiment is a plurality of transmission members 4500 and 4600 , and a corresponding operation unit 4200 and a portion of the engaging member 4300 . is the composition Hereinafter, these components are demonstrated.

The manipulation unit 4200 includes a button 4210 disposed on a plate disposed on the holder 3100 to receive an external force. The manipulation unit 4200 includes a first extension portion 4220 that extends downwardly from the corner region in the X direction toward the -Y direction on the inner surface of the button 4210 and is movably accommodated in the first manipulation guide 3110 . In addition, the operation unit 4200 includes a second extension portion 4230 that extends downwardly from the -X corner region in the -Y direction on the inner surface of the button 4210 and is movably accommodated in the second operation guide 3120 . do. In addition, the first extension 4220 is movably supported at one end of a first transmission member 4500 to be described later, and the second extension 4230 is attached to one end of a second transmission member 4600 to be described later. movably supported.

The locking member 4300, the -Y direction end is provided to be accommodated in the locking groove 1100, while the Y-direction plate surface is provided to be elastically pressed by the elastic member 3400, as in the case of the previous embodiment. However, the locking member 4300 according to the present embodiment includes a first protrusion 4310 provided at the corner in the X direction and a second protrusion 4320 provided at the corner in the -X direction. The first protrusion 4310 is movably supported at the other end of the first transmission member 4500 to be described later, and the second protrusion 4320 is movably supported at the other end of the second transmission member 4600 to be described later. do.

A plurality of transmission members (4500, 4600) is a first transmission member (4500) disposed in the X direction of the engaging member (4300) in the holder (3100), and -X of the engaging member (4300) in the holder (3100) and a second transmission member 4600 disposed in the direction. The first transmission member 4500 and the second transmission member 4600 are symmetrically disposed with respect to the locking member 4300 .

The first transmission member 4500 is a first transmission member tube ( 4510). The first transmission member 4500, as any one of the first extension portion 4220 and the first protrusion 4310 enters the first transmission member tube 4510, the other one of the first transmission member tube 4510 The fluid 4520 filled in the first transmission member tube 4510 is included to push it out. The type of the fluid 4520 is not limited, and may have various properties such as gas, liquid, gel, and sol. On the other hand, various structures may be applied to the first transmission member tube 4510 so that the fluid 4520 does not flow out from both ends.

The second transmission member 4600 also has a configuration similar to that of the first transmission member 4500 . The second transmission member 4600 is a second transmission member tube 4610 for movably supporting the second extension portion 4230 of the manipulation unit 4200 and the second protrusion portion 4320 of the locking member 4300 at both ends, respectively. ) is included. In addition, the second transmission member 4600, the second transmission member tube ( 4610 includes a fluid 4620 filled in the second transmission member tube 4610 to push out.

On the other hand, the transmission members 4500 and 4600, in addition to the fluids 4520 and 4620 according to the present embodiment, may transmit a force between the extension parts 4220 and 4230 and the protrusions 4310 and 4320 depending on the design method. Any kind of object can be used.

An operation of the selection locking unit 4000 when the external force applied to the button 4210 is released in this embodiment will be described.

While the elastic force of the elastic member 3400 pushes the locking member 4300 in the -Y direction, the locking member 4300 moves in the -Y direction to be caught in the locking groove 1100 . As the locking member 4300 moves, the first protrusion 4310 and the second protrusion 4320 also move in the -Y direction. As the first protrusion 4310 enters into the first transmission member tube 4510 , the first extension 4220 is moved by the fluid 4520 in the first transmission member tube 4510 to the first transmission member tube 4510 . ) is pushed out. Since one end of the first transmission member tube 4510 extends in the Y direction, the first extension 4220 moves in the Y direction. Similarly, as the second protrusion 4320 enters the second transmission member tube 4610 , the second extension 4230 is transferred to the second transmission member tube 4610 by the fluid 4620 in the second transmission member tube 4610 . The member tube 4610 is pushed out. Since one end of the second transmission member tube 4610 extends in the Y direction, the second extension 4230 moves in the Y direction.

As described above, as the first extension part 4220 and the second extension part 4230 move together in the Y direction, the entire manipulation unit 4200 moves in the Y direction.

Hereinafter, the operation of the selection lock unit 4000 when an external force is applied to the button 4210 will be described.

FIG. 8 is a cross-sectional view showing an operation when an external force is applied to the selective locking part of FIG. 7 .

As shown in FIG. 8 , when an external force is applied to the button 4210 in the -Y direction, the button 4210 , the first extension part 4220 , and the second extension part 4230 move in the -Y direction. At this time, the above-described movement is possible only when the external force can overcome the elastic force of the elastic member 3400 . According to the movement of the first extension part 4220 and the second extension part 4230 , the first transfer member 4500 moves the first protrusion part 4310 in the Y direction, and the second transfer member 4600 moves the second extension part 4600 . 2 The protrusion 4320 is moved in the Y direction.

Specifically, when the first extension 4220 moves to enter the inside of the first transfer member tube 4510 , the fluid 4520 in the first transfer member tube 4510 moves the first protrusion 4310 to the first The transmission member tube 4510 is pushed out. Here, since the other end of the first transmission member tube 4510 extends in the Y direction, the first protrusion 4310 moves in the Y direction.

In addition, when the second extension 4230 moves to enter the inside of the second transfer member tube 4610 , the fluid 4620 in the second transfer member tube 4610 moves the second protrusion 4320 into the second transfer member. Push out of tube 4610. Here, since the other end of the second transmission member tube 4610 extends in the Y direction, the second protrusion 4320 moves in the Y direction.

As the first protrusion 4310 and the second protrusion 4320 move together in the Y-direction, the engaging member 4300 also moves in the Y-direction and separates from the engaging groove 1100 . Since the locking member 4300 and the locking groove 1100 are released by the locking, the user can slide the second pipe 2000 with respect to the first pipe 1000 .

1000: first pipe
1100: jamming groove
2000: 2nd pipe
2100: through hole
3000: optional lock
3100 : holder
3110: first operation additional guide
3120: second operation guide
3130: elastic member support part
3200: control panel
3210 : button
3220: first extension
3230: second extension
3300: jamming member
3400: elastic member
3500: first transmission member
3510: first rotation shaft
3600: second transmission member
3610: second rotation shaft

Claims (9)

In the vacuum cleaner,
A first pipe having a locking groove formed on one side, and
a second pipe in communication with the first pipe and into which the one side of the first pipe is inserted;
and a selective locking part provided to selectively restrict movement between the first pipe and the second pipe while the first pipe is inserted into the second pipe,
The selective locking unit,
a locking member having a shape corresponding to the locking groove and movable in a first direction accommodated in the locking groove or in a second direction opposite to the first direction;
an elastic member for elastically pressing the locking member in the first direction;
a manipulation unit provided on the outside of the second pipe and movable between a first position in a state in which the external force is applied and a second position in a state in which the external force is released;
It includes a plurality of transmission members provided to be spaced apart from each other at a plurality of positions so as to transmit the external force applied to the manipulation unit to the locking member,
As the manipulation unit moves from the second position to the first position, the holding member is moved in the second direction by the plurality of transmission members to be released from the holding groove. According to claim 1,
The plurality of positions at which the plurality of transmission members are provided are symmetrical to each other about the locking member. According to claim 1,
The plurality of transmission members,
a first transmission member provided rotatably by being pressed to the first extension of the manipulation unit;
and a second transmission member provided to be rotatably pressed by the second extension portion of the operation unit spaced apart from the first extension portion,
When the operation unit moves to the first position by the external force, the first transmission member and the second transmission member rotate to move the locking member in the second direction, respectively. 4. The method of claim 3,
When the external force is released, the first transmission member and the second transmission member are respectively pressed by the locking member moving in the first direction, so that the operation unit moves to the second position. A vacuum cleaner pressing the second extension. According to claim 1,
The second pipe has a through hole formed at a position corresponding to the locking hole of the first pipe,
The selective locking unit may further include a holder coupled to an outer circumferential surface of the second pipe to cover the through hole and movably supporting the manipulation unit. 6. The method of claim 5,
The holder is
a first operation guide for guiding the movement of the first extension of the operation unit;
and a second operation guide for guiding the movement of the second extension of the operation unit,
A width of the first extension part corresponds to a width of the first manipulation guide, and a width of the second extension part corresponds to a width of the second manipulation guide. 7. The method of claim 6,
The first extension part and the second extension part are provided symmetrically with respect to the center of the manipulation part. 6. The method of claim 5,
The elastic member is a vacuum cleaner interposed between the holder and the engaging member. According to claim 1,
The locking groove is a vacuum cleaner that is vertically recessed from the outer circumferential surface of the first pipe.

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