KR200157819Y1 - Extention pipe of vacuum cleaner - Google Patents

Abstract

The present invention relates to an extension pipe of a cleaner for cleaning by suction force of the drive means, it is possible to prevent the extension pipe constituting the extension control means from the second body pipe of the second extension means.

The configuration of the present invention, the first extension means connected to the third lead wire of the suction port is connected to the power source, the second extension means to be connected to the connection portion of the handle member connected to the suction hose, Between the first and second extension means and the extension control means installed to allow length adjustment of the first and second extension means so that the foreign matter sucked through the first extension means is moved to the suction hose through the second extension means. In the extension tube of the cleaner consisting of a power supply means fixed to the first and second extension means both ends so that the power is supplied even when the length adjustment is made, the extension pipe of the extension control means is fixed to the second sealing member and the pipe One end is fitted to the first body pipe of the first extension means and the other end is the second body pipe of the second extension means while being fitted to the release preventing ring of plastic material before being fitted to the housing. It is a sandwiched structure.

Description

Cleaner tube

The present invention relates to a cleaner, and more particularly, to an extension pipe of the cleaner which can prevent the extension pipe constituting the extension control device from being pulled out from the second body pipe of the second extension device.

In general, as shown in FIG. 1, the cleaner includes a main body 1 having a suction motor and a dust pack built in, and a power supply device for supplying power therein, and dust collection packs of the main body 1. The suction hose which guides the flow of dust-containing air to be sucked and the wire connected to the power supply device is disposed inside and the handle member 3 formed at the end of the connection part 4 to which the wire is connected is connected to one end ( 2) and a power brush (not shown) which is rotated by a driving motor to disperse dust through the suction hose 2 to disperse the dust in the room smoothly and the third lead wire 6 ) Flows in the air containing the dust and foreign matter so that the suction inlet 5 and the air containing the dust and foreign matter sucked through the suction inlet 5 flow to the suction hose 2 side. Guides the suction Made of the extension pipe connected between the body 5 and the handle member (3).

In this case, as shown in FIGS. 2 to 4, the extension pipe is connected to the third lead wire 6 of the inlet port 5 to smoothly suck in the dust in the room so that the power is connected. The first extension device 200 and the second extension device 300 which can be connected to the connecting portion 4 of the handle member 3 connected to the suction hose 2 for guiding the foreign matter to the main body 1 and The length of the first and second extension devices 200 and 300 can be adjusted to allow the foreign substances sucked through the first extension device 200 to be moved to the suction hose 2 through the second extension device 300. Both ends are fixed to the first and second extension devices 200 and 300 so that power can be supplied even when length adjustment is made between the extension control device 400 and the first and second extension devices 200 and 300. It consists of an apparatus 500.

The first extension device 200, the first body pipe 210 in close contact with the suction inlet 5, and the compression spring 220 erected vertically on the upper end of one side of the first body pipe (210) And, the fastening button 230 is installed so as to be rotatable on the upper end of one side of the first body pipe 210 and is elastically supported by the compression spring 220, the compression spring 220 and the fastening button The lower terminal bottom member 240 of a predetermined shape formed of an insulating material and the lower terminal bottom member 240 formed of an insulating material are evacuated so as to be installed to be connected to the third lead wire 6. The terminal connecting member 250 including the lead terminal 251, the wire 252, and the circular terminal 253, and the upper end of the lower terminal bottom member 240, and the one end of the terminal connecting member 250 is seated. The upper terminal bottom member 260 and the first body pipe 210 The first fixed bottom member 270 formed of an insulating material to fix the other end of the terminal connection member 250 and the antenna 510 of the power supply device 500, and the first fixed bottom member 270 to the first fixed bottom member 270. Screw 280 for fixing the other end of the terminal connecting member 250, and installed so as to operate the fastening button 230 installed in the first body pipe 210 and the compression spring 220 and the lower / A first body coupled to the first body pipe 210 via a screw 281 so that the upper terminal bottom members 240 and 260 and the terminal connecting member 250 and the first fixed bottom member 270 are not exposed to the outside. It consists of a pipe cover (290).

The first body pipe 210 may include a fastening button seating portion 211 in which the fastening button 230 is rotatably seated, and a bottom member seating portion 212 in which the lower terminal bottom member 240 is seated. The fixed bottom member seating portion 213 on which the first bottom bottom member 270 is seated, the wire seat 214 on which the wire 252 of the terminal connection member 250 is fitted, and the antenna cover An antenna cover seating portion 215 into which one end of 520 is fitted and seated, a sealing member seating portion 216 into which the first sealing member 410 is fitted, and the fixed bottom member seating portion 213 and an antenna cover It is formed between the seating portion 215 and the quadrilateral hole 217 into which the projection 291 of the first body pipe cover 290 is fitted, and each of the seating portion is installed and the third lead wire 6 Body 218 having a protrusion to be inserted so that the lead terminal 251 of the terminal connecting member 250 accommodated in the lower terminal bottom member 240 can be connected. Consists of

In addition, the second extension device 300 is seated at a predetermined position on the upper surface of the second body pipe 310 and the second body pipe 310 connected to the connecting portion 4 of the handle member 3. In addition, the second fixed bottom member 320 formed of an insulating material so that the antenna 510 of the power supply device 500 is fixed, and the antenna 510 is disposed above the second fixed bottom member 320. A lead wire 330 composed of a circular terminal 331 raised to be in close contact with the state, a lead terminal 333 connected to the wire 332 and the connecting portion 4 of the handle member 3, and the lead wire 330. ) And a screw nail 340 fastened to the end of the antenna 510 to the second fixed bottom member 320, and a second fixed bottom member 320 and a lead wire accommodated in the second body pipe 310. Most of the 330 is composed of a second body pipe cover 350 coupled to the second body pipe 310 so as not to be exposed to the outside. All.

Here, the second body pipe 310 may include a reinforcing grate portion 311 into which the power supply device 500 is fitted, and a fixed bottom member seating portion 312 on which the second fixed bottom member 320 is seated. A wire seating portion 313 to which the wire 332 of the lead wire 330 is fitted, a terminal seating portion 314 to which the lead terminal 333 of the lead wire 330 is seated, and the second Two pairs of fastening hook portions 316 formed to face the opposite ends of the body pipe cover 350 to be fastened to the second body pipe 310 and the rotation preventing protrusion 422 of the extension pipe 420 to be described later. The pair of anti-rotation grooves 317 formed on the inner circumferential surface of a predetermined length from the front end portion of the side where the reinforcement bent portion 311 is formed, and the lower portion of the reinforcement portions 311 and the anti-rotation groove 317 are formed The lower inclined protrusion 431 of the pipe fix housing 430, which will be described later, is formed in a hole having a diameter larger than the diameter. It consists of a housing fixing part 318 is formed to be fitted.

In addition, the extension control device 400, coupled to the end of the first body pipe 210 is installed to be sealed to the first sealing member 410 and the second body pipe 310, An extension pipe 420 whose tip is inserted into the first body pipe 210 and fixed by the first body pipe cover 290, and the second body pipe 310 is fitted to the extension pipe 420. Pipe fixing housing 430 which is inserted into the inside of the pipe and seated to guide the extension pipe 420, and is fitted to the rear end of the pipe fixing housing 430 to prevent the air from leaking to the place where it is in contact with the extension pipe 420. The second sealing member 440, the C-shaped spring 460 seated on the middle portion of the outer peripheral surface of the pipe fixing housing 430, and the C-shaped spring 460 in close contact with the pipe fixing housing 430 The seat is seated by the roller seating member 470 and the roller seating member 470. Cylindrical roller 480 to be determined, and is inserted into the lower end of the second body pipe 310 to operate before and after hooked to the roller seating member 470 to be able to stretch the length of the extension pipe 420 It consists of a two-way operation knob 490.

The extension pipe 420 is cocked at a predetermined angle to the opposite end of the quadruple through hole 421 into which the projection 291 of the first body pipe cover 290 is fitted. A pair of anti-rotation protrusions 422, a plurality of length adjusting grooves 423 formed along the longitudinal direction in the form of a serrated downward of the quadruple through hole 421, and the inner peripheral surface of the first body pipe 210 It consists of a rotation preventing portion 424 formed on the tip to be fitted to the rotation preventing projections (218b) provided in the.

The power supply device 500 is a multi-stage antenna 510 which is fixed to both ends of the first and second fixed bottom members (270,320) and is extensible as well as the power supply, and the antenna 510 An antenna cover 520 fixed to the first body pipe 210 and fitted to prevent electric shock, and a screw fastened to fix the antenna cover 520 to the first body pipe 210. It consists of 530.

Therefore, the fastening button seating portion 211 so that the fastening button 230 is elastically rotated by the compression spring 220 that is erected vertically to the front end of the first body pipe 210 constituting the first extension device 200. After seating on the upper terminal bottom member 260, the lead terminal 251 of the pair of terminal connection members 250 to which the third lead wire 6 is reliably connected to the lower terminal bottom member 240 is seated. After fixing it to be seated on the bottom member seating portion 212 of the first body pipe 210 so as not to interfere with the fastening button 230.

Thereafter, the circular terminal 253, which is the other end of the terminal connection member 250, is connected to the first fixed bottom member 270 together with the tip of the antenna 510 constituting the power supply device 500 through the screw 280. After fixing, the first fixed bottom member 270 is seated on the fixed bottom member seating portion 213 of the first body pipe 210 and the wire 252 portion of the terminal connection member 250 is first mounted. It is fixed to the wire seating portion 214 of the body pipe 210.

Next, the antenna cover 520 is inserted into the pair of antennas 510 and fixed to the antenna cover seating part 215 of the first body pipe 210 through the screw 530.

In addition, after coupling the first sealing member 410 to the sealing member seating portion 216 formed at the rear end of the first body pipe 210, the second sealing member 440, C-shaped spring 460 and roller seating Insert the pipe fixing housing 430, the member 470 and the roller 480 is installed, and the first sealing member 410 is installed to the front end of the extension pipe 420 inserted into the second body pipe 310 1 Insert into the body pipe 210 to a certain depth.

Thereafter, the quadruple hole 217 and the quadruple through hole 421 of the extension pipe 420 are formed to penetrate the protrusion 291 protruding downward from the first body pipe cover 290 into the first body pipe 210. In addition to fastening to the cover seating portion 218 through the screw (281).

Next, the anti-rotation protrusion 422 cocked to the rear of the extension pipe 420 is inserted in accordance with the anti-rotation groove 317 formed in the second body pipe 310 and the pipe is fixed to the extension pipe 420. When the housing 430 is inserted and fixed to match the tip of the second body pipe 310, the extension pipe 420 does not rotate in the second body pipe 310.

After that, the hook portion 491 of the bidirectional manipulation knob 490 inserted from the lower portion of the second body pipe 310 is inserted into the second body pipe 310 to be seated on the roller seating member 470 to be seated. The member 470 can be moved back and forth.

In addition, the antenna 510 and the antenna cover 520 of the power supply device 500 is inserted into the antenna cover guide member 315 to be guided through the reinforcement portion 311 of the second body pipe 310. In addition, the second fixed bottom member 320 is fixed to the second fixed bottom member 320 to be in close contact with the pair of lead wires 330 through the screw 340, and the fixed bottom member seating portion 312. Settle on

Thereafter, the wire 332 and the lead terminal 333 of the lead wire 330 are seated on the wire seating portion 313 and the terminal seating portion 314 of the second body pipe 310 and then the second body pipe. The cover 350 is fixed by pressing the fastening hook portion 316 so that the power supply device 500, the lead wire 330, and the second fixed bottom member 320 are not exposed to the outside.

Thereafter, the upper and lower bidirectional manipulation knobs 490 are pushed back and forth, and the rollers 480 are seated in the escape portion 471 of the roller seating member 470, and are separated from the length adjusting groove 423 of the extension pipe 420. Since the extension pipe 420 is moved out of the second body pipe 310 and moved in, the entire length of the extension pipe is stretchable.

At this time, the antenna 510 of the power supply device 500 is stretched in the antenna type according to the change in the overall length of the extension tube and is energized from the terminal connection member 250 to the lead wire 330.

In addition, the antenna cover 520 can prevent the safety accident by reducing the electric shock due to the back of the user's hand is in contact with the antenna 510 when the length of the extension tube is increased.

However, when the first body pipe 210 of the first extension device 200 and the second body pipe 310 of the second extension device 300 is caught and pushed excessively in a direction opposite to the relative direction, Rotation preventing protrusion 422 of the extension pipe 420 when the extension pipe 420 of the extension control device 400 is installed to the first extension device and the second extension device to extend out of the second body pipe 310. As a result of the breakage, the second sealing member 440 and the pipe fixing housing 430 were completely separated and thus could not be used.

The present invention has been made to solve the above-described drawbacks, the first extension of the first extension device in the state in which the extension pipe of the extension control device is fitted in the escape prevention ring of the plastic material before being fitted to the second sealing member and the pipe fixing housing. In addition to being fitted into the body pipe and fitted into the second body pipe of the second extension device, it is possible to prevent the extension pipe constituting the extension control device from the second body pipe of the second extension device from falling into a large working force of the user. It is an object of the present invention to provide an extension tube of a vacuum cleaner.

1 is an exploded perspective view showing a disassembled cleaner to which one example of a conventional extension tube is applied.

2 is an exploded perspective view of a conventional extension tube.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a partial perspective view showing the extension pipe of FIG.

5 is an exploded perspective view showing an extension tube according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: main body 2: suction hose

3: handle member 4: connection part

5: suction port 6: third lead wire

200: first extension device 210: first body pipe

220: compression spring 230: fastening button

250: terminal connecting member 251: lead terminal

252: wire 253: round terminal

280,281: screw 290: first body pipe cover

300: second extension device 310: second body pipe

317: anti-rotation groove 350: the second body pipe cover

360: Screw 400: Extension control device

420: extension pipe 422: anti-rotation protrusion

430 pipe fix housing

440: second sealing member 450: separation prevention ring

500: power supply device 510: antenna

The present invention for achieving the above object, the first extension device is connected to the third lead wire of the suction inlet to be able to suck the dust in the room smoothly, and the suction to guide the foreign matter to the main body The second extension device which can be connected to the connection portion of the handle member connected to the hose, and the first and second extension device so that foreign matter sucked through the first extension device is moved to the suction hose through the second extension device. An extension control device installed to adjust the length and the power supply device is fixed to both ends of the first and second extension device so that power can be supplied even when the length adjustment is made between the first and second extension device In the extension tube of the vacuum cleaner, the extension pipe of the extension adjusting device is attached to the release preventing ring of plastic material before being fitted into the second sealing member and the pipe fixing housing. And the one end of claim 2 characterized in that a pipe structure fitted to the body of the first body and the other end fitted with a pipe to load the second extending apparatus of the first extension unit to the updated state.

Hereinafter, an embodiment of a cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 5 is an exploded perspective view showing an extension tube according to the present invention, the same reference numerals are attached to the same parts as Figures 1 to 4 illustrating the prior art, the description thereof will be omitted.

The present invention is connected to the third lead wire (6) of the inlet port (5) which can smoothly suck the dust in the room, the power supply is connected to the first extension device (200), and the foreign matter (1) And a second extension device 300 which can be connected to the connecting portion 4 of the handle member 3 connected to the suction hose 2 which is guided to the suction hose 2, and sucked through the first extension device 200. Extension control device 400 and the first and second extension device 200 and 300 installed to enable the length adjustment of each other so that the foreign matter is moved to the suction hose (2) through the second extension device 300, Both ends of the extension device 200 and 300 are configured to have a power supply device 500 fixed to the first and second extension devices 200 and 300 so that the power can be supplied even when the length is adjusted.

The first extension device 200, the first body pipe 210 in close contact with the suction inlet 5, and the compression spring 220 erected vertically on the upper end of one side of the first body pipe (210) And, the fastening button 230 is installed so as to be rotatable on the upper end of one side of the first body pipe 210 and is elastically supported by the compression spring 220, the compression spring 220 and the fastening button The lower terminal bottom member 240 of a predetermined shape formed of an insulating material and the lower terminal bottom member 240 formed of an insulating material are evacuated so as to be installed to be connected to the third lead wire 6. The terminal connecting member 250 including the lead terminal 251, the wire 252, and the circular terminal 253, and the upper end of the lower terminal bottom member 240, and the one end of the terminal connecting member 250 is seated. The upper terminal bottom member 260 and the first body pipe 210 The first fixed bottom member 270 formed of an insulating material to fix the other end of the terminal connecting member 250 and the antenna 510 of the power supply device 500, and the first fixed bottom member 270 to the first fixed bottom member 270. Screw 28O for fixing the other end of the terminal connecting member 250 and the fastening button 230 installed in the first body pipe 210 and the compression spring 220 and the lower / Projection coupled to the screw body 281 to the first body pipe 210 so that the upper terminal bottom member 240, 2600 and the terminal connecting member 250 and the first fixed bottom member 270 is not exposed to the outside It consists of a first body pipe cover 290 having a (291).

The first body pipe 210 may include a fastening button seating portion 211 in which the fastening button 230 is rotatably seated, and a bottom member seating portion 212 in which the lower terminal bottom member 240 is seated. And a fixed bottom member seating portion 213 on which the first fixed bottom member 270 is seated, a wire seating portion 214 on which the wire 252 of the terminal connection member 250 is fitted, and the antenna cover An antenna cover seating portion 215 into which one end of 520 is fitted and seated, a sealing member seating portion 216 into which the first sealing member 410 is fitted, and the fixed bottom member seating portion 213 and an antenna It is formed between the cover seating portion (Lee 5) is a four-hole hole 217 is inserted into the projection 291 of the first body pipe cover 290, and each of the seating portion is installed and the third lead wire ( 6) is inserted into the projection 218a and the rotating room so as to be connected to the lead terminal 251 of the terminal connecting member 250 accommodated in the lower terminal bottom member 240 It consists of a body 218 with a protrusion 218b.

In addition, the second extension device 300 is seated at a predetermined position on the upper surface of the second body pipe 310 and the second body pipe 310 connected to the connecting portion 4 of the handle member 3. In addition, the second fixed bottom member 320 formed of an insulating material so that the antenna 510 of the power supply device 500 is fixed, and the antenna 510 is disposed above the second fixed bottom member 320. A lead wire 330 composed of a circular terminal 331 raised to be in close contact with the state, a lead terminal 333 connected to the wire 332 and the connecting portion 4 of the handle member 3, and the lead wire 330. ) And a screw nail 340 fastened to the end of the antenna 510 to the second fixed bottom member 320, and a second fixed bottom member 320 and a lead wire accommodated in the second body pipe 310. A second body pipe cover 350 coupled to the second body pipe 310 so that most of the 330 is not exposed to the outside, and the second body Consists of a screw 360 for fastening the pipe cover 350 to the second body pipe 310.

Here, the second body pipe 310 may include a reinforcing bent portion 311 into which the power supply device 500 is fitted, and a fixed bottom member seating portion 312 on which the second fixed bottom member 320 is seated. A wire seating portion 313 to which the wire 332 of the lead wire 330 is fitted, a terminal seating portion 314 to which the lead terminal 333 of the lead wire 330 is seated, and the second Two pairs of fastening hook portions 316 formed to face the opposite ends of the body pipe cover 350 to be fastened to the second body pipe 310 and the rotation preventing protrusion 422 of the extension pipe 420 to be described later. The pair of anti-rotation grooves 317 formed on the inner circumferential surface of a predetermined length from the front end portion of the side where the reinforcement bent portion 311 is formed, and the lower portion of the reinforcement portions 311 and the anti-rotation groove 317 are formed The lower inclined protrusion 431 of the pipe fixing housing 430, which will be described later, is inserted into a hole having a diameter larger than the diameter and fastened. The housing consists of a fixed part 318 formed to.

In addition, the extension control device 400, coupled to the end of the first body pipe 210 is installed to be sealed to the first sealing member 410 and the second body pipe 310, An extension pipe 420 whose tip is inserted into the first body pipe 210 and fixed by the first body pipe cover 290, and the second body pipe 310 is fitted to the extension pipe 420. Pipe fix housing (430) which is inserted into the inside of the pipe to be seated to guide the extension pipe 420, and is inserted into the rear end of the pipe fixing housing 430 to leak air into contact with the extension pipe 420. The second sealing member 440 and the separation prevention ring is inserted into the extension pipe 420 so that the extension pipe 420 is prevented from being pulled out by the pipe fixing housing 430 and the second sealing member 440. 450 and seated on the middle portion of the outer peripheral surface of the pipe fixing housing 430 C-shaped spring 460, a roller seating member 470 in close contact with the pipe fixing housing 430 by the C-shaped spring 460, and a cylinder seated and positioned by the roller seating member 470 The hook 491 is inserted into a lower portion of the front end of the roller 480 and the second body pipe 310 so as to be able to stretch the length of the extension pipe 420 by operating back and forth to be hooked to the roller seating member 470. It consists of a bidirectional operation knob 490 with.

The extension pipe 420 is cocked at a predetermined angle to the opposite end of the quadruple through hole 421 into which the projection 291 of the first body pipe cover 290 is fitted. A pair of anti-rotation protrusions 422, a plurality of length adjusting grooves 423 formed along the longitudinal direction in the form of a tooth in the lower portion of the four through holes (4 li), and the first body of the pipe 210 It has a structure with a rotation preventing groove 424 formed to fit in the rotation preventing projection (218b).

The power supply device 500 is a multi-stage antenna 510 which is fixed to both ends of the first and second fixed bottom members (270,320) and is extensible as well as the power supply, and the antenna 510 An antenna cover 520 fixed to the first body pipe 210 and fitted to prevent electric shock, and a screw fastened to fix the antenna cover 520 to the first body pipe 210. It consists of 530.

Therefore, the fastening button seating portion 211 so that the fastening button 230 is elastically rotated by the compression spring 220 that is erected vertically to the front end of the first body pipe 210 constituting the first extension device 200. After seating on the upper terminal bottom member 260, the lead terminal 251 of the pair of terminal connection members 250 to which the third lead wire 6 is reliably connected to the lower terminal bottom member 240 is seated. After fixing it to be seated on the bottom member seating portion 212 of the first body pipe 210 so as not to interfere with the fastening button 230.

Thereafter, the circular terminal 253, which is the other end of the terminal connection member 250, is connected to the first fixed bottom member 270 together with the tip of the antenna 510 constituting the power supply device 500 through the screw 280. After fixing, the first fixed bottom member 270 is seated on the fixed bottom member seating portion 213 of the first body pipe 210 and the wire 252 portion of the terminal connection member 250 is first mounted. It is fixed to the wire seating portion 214 of the body pipe 210.

Next, the antenna cover 520 is inserted into the pair of antennas 510 and fixed to the antenna cover seating part 215 of the first body pipe 210 through the screw 530.

In addition, after the first sealing member 410 is coupled to the sealing member seating portion 216 formed at the rear end of the first body pipe 210, the tip of the extension pipe 420 is fitted to the release preventing ring 450 and In addition, the first sealing member 410 passes through the pipe fixing housing 430 provided with the second sealing member 440, the C-shaped spring 460, the roller seating member 470, and the roller 480. It is inserted into the installed first body pipe 210 to a predetermined depth.

Thereafter, the quadruple hole 217 and the quadruple through hole 421 of the extension pipe 420 are formed to penetrate the protrusion 291 protruding downward from the first body pipe cover 290 into the first body pipe 210. In addition to the fitting on the screw 281 is fastened to the body 218 via a medium.

Next, the anti-rotation protrusion 422 cocked at the rear of the extension pipe 420 is inserted in accordance with the second body pipe 310, and the pipe fixing housing 430 fitted to the extension pipe 420 is inserted into the second body. It is inserted and fixed to coincide with the tip of the pipe 310.

After that, the hook portion 491 of the bidirectional manipulation knob 490 inserted from the lower portion of the second body pipe 310 is inserted into the second body pipe 310 to be seated on the roller seating member 470 to be seated. The member 470 can be moved back and forth.

In addition, the antenna 510 and the antenna cover 520 of the power supply device 500 is inserted into the antenna cover guide member 315 to be guided through the reinforcement portion 311 of the second body pipe 310. In addition, the second fixed bottom member 320 is fixed to the second fixed bottom member 320 to be in close contact with the pair of lead wires 330 through the screw 340, and the fixed bottom member seating portion 312. Settle on

Thereafter, the wire 332 and the lead terminal 333 of the upper lead wire 330 are seated on the wire seating portion 313 and the terminal seating portion 314 of the second body pipe 310, and then the second body The pipe cover 350 is fixed to the fastening hook part 316 so that the power supply device 500, the lead wire 330, and the second fixed bottom member 320 are not exposed to the outside.

Thereafter, when the two-way operation knob 490 is pushed back and forth and the roller 480 is seated on the escape portion of the roller seating member 470, the extension pipe 420 is separated from the length adjusting groove 423 to extend the pipe. As the 420 is moved out of the second body pipe 310 and moved in, the entire length of the extension tube is stretchable.

At this time, the antenna 510 of the power supply device 500 is stretched in the antenna type according to the change in the overall length of the extension tube to be energized from the terminal connection member 250 to the lead wire 330.

In addition, the antenna cover 520 can prevent the safety accident by reducing the electric shock due to the back of the user's hand is in contact with the antenna 510 when the length of the extension tube is increased.

In addition, one end of the extension pipe 420 constituting the extension control device 400 is fitted to the release preventing ring 450 of plastic material before being fitted into the second sealing member 440 and the pipe fixing housing 430. The first body pipe 210 of the first extension device 200 is fitted to the second sealing member 440 and the pipe fixing housing 430, and the second body of the second extension device 300 is fitted. The anti-rotation protrusion 422 of the extension pipe 420 is installed to be inserted into the anti-rotation groove 317 formed in the body pipe 310, while the pipe fixing housing 430 is installed in the second body pipe ( By being fixed to the front end of 310, even if the upper extension pipe 420 is operated with a strong force so that the rotation preventing projection 422 is deformed to fall into the second sealing member 440 and the pipe fixing housing 430 does not occur. do.

That is, the rotation preventing protrusion 422 of the extension pipe 420 is in close contact with the release prevention ring 450 when the extension pipe 420 is exerted a force even after being extended to the maximum in the second body pipe 310. When the separation preventing ring 450 is pressed to the second sealing member 440 fitted to the pipe fixing housing 430, the rotation preventing protrusion 422 is in close contact with the separation preventing ring 450. Since the deformation is hardly made because of being fitted in a closed state, the force applied to the extension pipe 420 is transmitted to the second sealing member 440 and the pipe fixing housing 430 through the entire side surface of the release preventing ring 450. ) To prevent departure due to deformation.

As described above, according to the present invention, the extension pipe of the extension control device is fitted to the first body pipe of the first extension device in a state of being fitted to the release preventing ring of plastic material before the extension pipe of the extension control device is fitted to the second sealing member and the pipe fixing housing. In addition, it is inserted into the second body pipe of the second extension device, there is an effect that the extension pipe constituting the extension control device in the second body pipe of the second extension device can be prevented from falling into a large working force of the user.

Although one specific embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and those skilled in the art may make various changes and modifications based on the technical idea of the present invention.

Claims (1)

A first extension device connected to a third lead wire of a suction port which can smoothly suck dust in the room, and a power supply connected thereto, and a connection part of the handle member connected to a suction hose for guiding foreign substances to the main body. Extension device for adjusting the length of the second extension device and the first and second extension device so that the foreign matter sucked through the first extension device is moved to the suction hose through the second extension device to be able to be adjusted. And, in the extension tube of the cleaner consisting of a power supply device fixed to the first and the second extension device so that the power is supplied even when the length adjustment between the first and second extension device is made, the extension control The first body pie of the first extension device, with one end being fitted to the release preventing ring of plastic material before the extension pipe of the device is fitted to the second sealing member and the pipe fixing housing. To the extension pipe of the vacuum cleaner, characterized in that fitted in the pipe body 2 of the other end of the second extension unit, with load inserted.