KR19990023456U - Extension pipe fixing structure of vacuum cleaner extension pipe - Google Patents

Abstract

The present invention relates to the extension pipe fixing structure of the extension pipe for the cleaner, so that no foreign matter or hair caught on the sealing member installed to block the air leaking between the first body pipe and the extension pipe and the first body pipe cover. .

The structure of the present invention is connected to the lead wire of the suction inlet which can smoothly suck the dust in the room, the first body pipe 210 configured to be connected to the power supply and the first fastening on the first body pipe A first extension means (200) having a body pipe cover (290), a second extension means (300) adapted to be connected to a connection portion of the handle member connected to a suction hose for guiding the substance to the main body; Extension control means (400) installed to be capable of adjusting the length of the first and second extension means to move the foreign matter sucked through the first extension means to the suction hose through the second extension means, and the first and second In the extension pipe of the cleaner consisting of the power supply means 500 is fixed to the first and second extension means both ends so that the power is supplied even when the length of the extension means are made mutually, the first body pipe 210 ) Is the U-shape An extended pipe catching portion 217a is formed in which the end cut out by the external force is bent to a certain amount by the elastic force, and an upper portion of the extended pipe catching portion 217a has a constant thickness sealing having a plate-like elastic force. The member 700 is attached so as to be covered, and the sealing member 700 and the extended wave engaging portion 217a are joined by the protrusion 291 protruding to the lower portion of the first body pipe cover 290 so that the first body is joined. It is possible to limit the axial movement of the extension pipe 420 inserted into the pipe 210.

Description

Extension pipe fixing structure of vacuum cleaner extension pipe

The present invention relates to a cleaner extension pipe for cleaning by the suction force of the drive means, in particular, the suction efficiency is improved when suctioning dust or dirt during cleaning, as well as the first body pipe and the extension pipe and the first body pipe It relates to an extension pipe fixing structure of the extension tube for cleaners to prevent the foreign matter or hair caught on the sealing member installed to block the air leaking between the cover.

1 and 2, the extension pipe for the cleaner according to the prior art is connected to the lead wire of the suction port which can smoothly suck the dust in the room, the first extension means 200 is connected to the power source And a second extension means 300 which can be connected to a connection part of the handle member connected to the suction hose for guiding foreign substances to the main body, and the foreign substances sucked through the first extension means 200 are secondly extended. The extension control means 400 and the first and second extension means 200 and 300 installed to allow the length adjustment of the first and second extension means 200 and 300 to be moved to the suction hose through the means 300, Even when the length adjustment is made, both ends of the power supply means 500 are fixed to the first and second extension means 200 and 300 so that the power can be supplied.

As shown in FIGS. 1 to 3, the first extension means 200 includes a first body pipe 210 which is in close contact with the suction port, and is perpendicular to the upper side of one side of the first body pipe 210. Compression spring 220 erected to be installed, and rotatably installed on the upper side of the first end of the first body pipe 210 and the fastening button 230 is installed to be elastically supported by the compression spring 220, and the compression The spring 220 and the fastening button 230 are evacuated to be installed, and a lower terminal base 240 of a predetermined shape formed of an insulating material and one end of the lower terminal base 240 are seated to be connected to the lead wire. Terminal connection member 250 consisting of a lead terminal 251 and a wire 252 and the circular terminal 253 and the upper terminal of the lower terminal base 240 is fastened so that one end of the terminal connecting member 250 is seated. The upper terminal base 260 and the first body pipe 210. A first fixed base 270 formed of an insulating material to be seated and the other end of the terminal connecting member 250 and the antenna 510 of the power supply means 500 are fixed to the first fixed base 270. The first body pipe 210 so that the screw 280 for fixing the other end of the terminal connecting member 250, the compression spring 220, the fastening button 230 and the screw 280 is not exposed to the outside A first body pipe cover 290 having a protrusion 291 protruding downward as well as coupled to the screw through the screw (281).

The first body pipe 210 includes a fastening button seating portion 211 to which the fastening button 230 is rotatably seated, a base seating portion 212 on which the lower terminal base 240 is seated, and the The fixed base seating portion 213 on which the first fixed base 270 is seated, the wire seating portion 214 into which the wire 252 of the terminal connecting member 250 is fitted, and the antenna cover 520 of the An antenna cover seating portion 215 into which one end is fitted and seated, a sealing member seating portion 216 into which the first sealing member 410 is fitted, and the fixed base seating portion 213 and an antenna cover seating portion 215. A quadrangular hole 217 formed between the first body pipe cover 290 and the protrusion 291 of the first body pipe cover 290, and the respective seating parts are installed, and lead wires are inserted into the lower terminal base 240. The protrusion 218a having a hole so as to be connected to the lead terminal 251 of the terminal connecting member 250 and the inner peripheral surface It consists of a body 218 with a preventing projection (218b).

The sealing member seating portion 216 has a sealing member seating flange 216a formed with a chamfer at the tip of the first body pipe 210, and is formed in a predetermined width and diameter inside the sealing member seating flange 216a. It is structured with the locking groove 216b.

As shown in FIGS. 2 and 4 and 5, the second extension means 300 includes a second body pipe 310 connected to the connection portion of the handle member and the second body pipe 310. The second fixed base 320 is formed of an insulating material so as to be seated at a predetermined position on the upper surface and to fix the antenna 510 of the power supply means 500, and the antenna 510 on the upper part of the second fixed base 320. Lead wire 330 consisting of a circular terminal 331, a wire terminal 331 and a lead terminal 333 which is inserted into and connected to a connection portion of the handle member so as to be in close contact with each other, and the lead wire 330 An end of the antenna 510 is fixed to the screw 340 that is fastened to the second fixed base 320, and the second fixed base 320 and the lead wire 330 accommodated in the second body pipe 310. The second body pipe cover 350 coupled to the second body pipe 310 so that most of them are not exposed to the outside. And a screw 360 for fastening the second body 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 means 500 is fitted, a fixed base seating portion 312 on which the second fixed base 320 is seated, and the A wire seating portion 313 into which the wire 332 of the lead wire 330 is fitted, and first and second terminal seating portions 314a and 314b on which the lead terminal 333 of the lead wire 330 is seated; The terminal seating portion 314 having a screw fastening portion 314c to which the screw 360 is fastened, and protruding upward from the reinforcement part 311 to the fixed base seating portion 312 at a predetermined height in parallel will be described later. The antenna cover guide 315 and the second body pipe cover 350 formed to guide the antenna cover 520 of the power supply means 500 without flow, and are coupled to the second body pipe 310. Two pairs of fastening hook portions 316 formed to face both ends, and the rotation preventing projection 422 of the extension pipe 420 to be described later is pinched. A pair of anti-rotation grooves 317 formed on the inner circumferential surface of the place where a predetermined length is entered from the tip end of the side where the reinforcement extremity portion 311 is formed, and the lower anti-rotation groove 317 is formed while the lower portion of the reinforcement portion 311 The lower fixing projection 431 of the pipe fixing housing 430, which will be described later, is inserted into a hole having a diameter larger than the diameter of the housing fixing part 318 and the bidirectional operation knob 490, which will be described later, so that the operation is performed back and forth. The formed rectangular hole 319 is formed.

In addition, the fastening hook portion 316 of the second body pipe 310 constituting the second extension means 300 has a gap between the second body pipe cover 350 constituting the second extension means 300. Of course, a plurality of three or more pairs may be installed at equal intervals in the longitudinal direction of the second body pipe 310 to be in close contact with each other.

Here, it is shown that the four hooks are installed with the fastening hook portion 316 facing.

Here, the inner surface of the second body pipe cover 350 may be formed with a groove or a projection in the longitudinal direction in order to be engaged with the fastening hook portion 316, only in a position corresponding to the fastening hook portion 316 Grooves or projections may be formed.

In addition, the housing fixing part 318 is a guide groove 318a through which the lower inclined protrusion 431 is guided as shown in FIGS. 4 and 5, and penetrated downwardly at the end of the guide groove 318a. The lower inclined protrusion 431 is inserted into the pipe fixing housing 430, and the quadrangular through hole 318b is formed so as not to be separated from the second body pipe 310.

The second body pipe cover 350 is a terminal fixing part 351 which is in close contact with the first terminal seating part 314a of the second body pipe 310, and the screw 360 is a screw fastening part 314c. Screw insertion portion 352 is inserted to be fastened to the) is provided.

Meanwhile, as shown in FIGS. 2 and 6 to 14, the extension adjusting means 400 is coupled to an end of the first body pipe 210 and is installed to seal the first sealing member 410 and the first sealing member. An extension pipe 420 which is fitted into the second body pipe 310 and whose tip is inserted into the first body pipe 210 and is fixed by the first body pipe cover 290, and the extension pipe 420. And a pipe fixing housing 430 which is inserted into the second body pipe 310 and seated to guide the extension pipe 400 and air is inserted into the rear end of the pipe fixing housing 430. The second sealing member 440 and the extension pipe 420 are inserted into the pipe fixing housing 430 and the second sealing member (440) to prevent leakage to the place in contact with the pipe 400 and the extension pipe 420 ( 440 is prevented from falling out of the prevention ring 450, and the pipe fixing housing C-type spring 460 seated on the middle portion of the outer peripheral surface of the (430), the roller seating member 470 in close contact with the pipe fixing housing 430 by the C-shaped spring 460, and the roller seating member 470 The length of the extension pipe 420 is manipulated before and after the roller 480 seated and positioned by the bottom and the front end of the second body pipe 310 is hooked to the roller seating member 470. It consists of a two-way operation knob 490 having a hook 491 to be stretchable.

In this case, the first sealing member 410 is fitted with the soft elastic band portion 411 seated on the sealing member seating flange 216a and the sealing member seating flange 216a so as to be engaged with the locking groove 216b. The leakage of air between the engaging projection 412 formed on the inner circumferential surface of the elastic band portion 411 and the coupling surface of the extension pipe 420 and the first body pipe 210 fitted to the first body pipe 210. It consists of a sealing protrusion 413 protruding on the inner circumferential surface of the elastic band portion 411 to prevent.

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 downward of the quadruple through hole 421, and the rotation of the first body pipe 210 The anti-rotation part 424 is formed to be fitted to the prevention protrusion 218b.

The pipe fixing housing 430 includes an inclined protrusion 431 provided on an outer circumferential surface of the housing fixing part 318b so as to be sucked into the axial center. A sealing member seating portion 433 formed at the suction hole 432 and a tip portion inserted into the second body pipe 310 to seat the second sealing member 440, and the sealing member seating portion 433. Roller seat member guide portion 434 protruding on the circumferential surface of the side) is installed, a quadrangular hole 435 into which the roller 480 is inserted at a predetermined position of the roller seat member guide portion 434, and C-shaped spring 460 is mounted is composed of a spring seating portion (436) to be able to latch the roller seating member (470).

The sealing member seating portion 433 is formed with a circumferential groove 433a into which the axial flange 441, which will be described later, of the second sealing member 440 is inserted, and the pipe at a predetermined position of the circumferential groove 433a. A protrusion fixing groove 433b is formed to communicate with an outer circumferential surface of the fixed housing 430.

The roller seating member guide portion 434 includes a pair of central guide protrusions 434a protruding from the sealing member seating portion 433 up to a quadrangular hole 435 and in the circumferential direction from the central guide protrusion 434a. It is formed with a predetermined interval is composed of the side guide projections (434b) protruding at a predetermined length so as to guide the roller seating member 490.

The second sealing member 440 includes a flange 441 fitted into the circumferential groove 433a, a peripheral portion 442 in close contact with the front surface of the pipe fixing housing 430, and the flange 441 and the peripheral portion. A positioning protrusion 443 connected to the protrusion fixing groove 433b and connected to the protrusion fixing groove 433b and a sealing protrusion 444 protruding from the inner circumferential surface of the roll to be in close contact with the expansion pipe 420 are provided. .

The roller seating member 470 includes a spring stopper 472 having a groove 471 into which the C-shaped spring 460 is fitted, and a hook 491 of the bidirectional manipulation knob 490 fitted thereto. A pair of central guide grooves 474 formed so as to be guided by the angular hole 473 and the central guiding protrusion 434a of the roller seat member guide part 434 from the pentagonal hole 473 to the tip thereof; The roller groove 475 is formed to be accommodated when the roller 480 is separated from the length adjusting groove 423 of the extension pipe 420 with a predetermined interval at a predetermined position of the guide groove 474. .

As shown in FIGS. 2 and 15, the power supply means 500 includes a multi-stage antenna having both ends fixed to the first and second fixed bases 270 and 320 so as to be stretchable and to supply power. 510, an antenna cover 520 fitted to the antenna 510 so as to prevent electric shock, and one end of which is fixed to the first body pipe 210, and the antenna cover 520 is connected to the first body pipe 210. It consists of a screw 530 fastened to be fixed to).

The antenna cover 520 has a rectangular cross section and has an antenna accommodation hole 521 formed therein so that the antenna 510 may be accommodated and expanded therein, and is perpendicular to the antenna accommodation hole and the antenna accommodation hole. The hole 522 is formed to be fitted into the antenna cover seating portion 215 of the first body pipe 210, and the second surface protrudes at a predetermined height on the lower surface on which the antenna accommodation hole 521 is formed. The cover guide 523, which is in close contact with the side surface of the antenna cover guide 315 of the body pipe 310, is provided.

In addition, the quadrangular hole is aligned with the quadrangular hole 217 formed so that the protrusion 291 of the first body pipe cover 290 is fitted into the first body pipe 210 constituting the first extension means 200. A third sealing member 600 having a predetermined shape having an elastic force formed with a square hole 610 having a smaller size than 217 is attached to the outer circumferential surface of the first body pipe 210 as shown in FIG. The first body pipe cover 290 has a structure that can be pressed by the inner lower surface.

The effect of the prior art structured as above is demonstrated.

The fastening button 230 is elastically rotated by a compression spring 220 that is erected perpendicularly to the fastening button seating portion 211 of the first body pipe 210 constituting the first extension means 200. Then, the lead terminal 251 of the one phase to which the lead wire is reliably connected to the lower terminal base 240 is seated and fixed to the upper terminal base 260, and then the base seating portion 212 of the first body pipe 210 is fixed. ) So as not to interfere with the fastening button 230.

Since the lower terminal base 240 and the upper terminal base 260 are made of an insulating material, the lower terminal base 240 and the upper terminal base 260 may be prevented from being burned by the heat generated from the lead terminal 251.

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

Next, the antenna cover 520 is inserted into the pair of antennas 510 and fixed to the antenna cover seating portion 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 anti-rotation part 424 formed at the tip of the extension pipe 420 is fixed to the pipe provided with the second sealing member 440, the C-shaped spring 460, the roller mounting member 470 and the roller 480 After insertion through the housing 430, the first sealing member 410 is inserted to a predetermined depth so as to fit to the rotation preventing protrusion 218b of the first body pipe 210.

Here, the sealing protrusion 413 of the first sealing member 410 prevents air from leaking between the extension pipe 420 and the inner circumferential surface of the first body pipe 210 to increase the suction efficiency of the cleaner.

Thereafter, the quadruple hole 217 and the tetragonal through hole 421 of the extension pipe 420 are formed to penetrate the protrusion 291 protruding from the lower portion of the first body pipe cover 290 to the first body pipe 210. In addition to the fitting, the first body pipe cover 290 is arranged to enable the fastening button 230 to be fastened to the body 218 with a screw 281.

Next, the anti-rotation protrusion 422 cocked at the rear of the extension pipe 420 is inserted into the second body pipe 310, and the pipe fixing housing 430 fitted to the extension pipe 420 is inserted into the second body. Inserting and fixing to match the tip of the pipe 310 prevents the second body pipe 310 and the extension pipe 420 from rotating relative to each other.

Thereafter, the bidirectional operation knob 490 is inserted into the rectangular hole 319 formed in the lower portion of the second body pipe 310 and the hook portion 491 is fastened to the quadrangular hole 473 of the roller seating member 470. By operating the front and rear it is possible to move the roller mounting member 470 back and forth.

At this time, when the roller 480 is seated on the escape portion 471 of the roller seating member 470, the roller 480 is separated from the length adjusting groove 423 of the extension pipe 420 so that the extension pipe 420 is the second body pipe ( As it slides out at 310 and slides in, the entire length of the extension tube is stretchable.

In addition, air is prevented from leaking between the extension pipe 420 and the pipe fixing housing 430 by the sealing protrusion 444 of the second sealing member 440, and a peripheral portion of the second sealing member 440. 442 is in close contact with the end of the circumferential surface in which the anti-rotation groove 317 and the housing fixing part 318 is formed to prevent air from leaking between the extension pipe 420 and the second body pipe 310. This will increase the suction efficiency of the cleaner.

In addition, the antenna 510 and the antenna cover 520 of the power supply means 500 is inserted through the reinforcement portion 311 of the second body pipe 310 and at the same time the cover guide of the antenna cover 520 ( 523 is inserted into the antenna cover guide 315 so as to be guided, and then the second fixing base 320 is disposed so that the tip of the antenna 510 is in close contact with the pair of lead wires 330 via the screw 340. After fixing to the second fixed base 320 is seated on the fixed base seating portion 312.

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 part 316 so that the power supply means 500, the lead wire 330, and the second fixing base 320 are not exposed to the outside. In this case, the lead wire fixed to the second extension means can be reliably prevented from being disconnected from the antenna of the power supply means when the extension tube is expanded and contracted.

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. Since the 420 is slid out of the second body pipe 310 and slides in, the entire length of the extension pipe is stretchable.

At this time, one end of the extension pipe 420 constituting the extension adjusting means 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. It is fitted to the second sealing member 440 and the pipe fixing housing 430 and then fitted to the first body pipe 210 of the first extension means 200, the second of the second extension means 300 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 provided with a second body pipe ( By being fixed to the front end of 310, even if the 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 escape prevention ring 450 when the extension pipe 420 is exerted to the maximum force from 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 of the release preventing ring 450. ) To prevent departure due to deformation.

In addition, since the center portion of the second body pipe 310 and the center portion of the second body pipe cover 350 are in close contact with each other by the fastening hook portion 316 provided with at least three pairs, the second body pipe is not generated. Foreign matter does not enter between the contact surface 310 of the 310 and the second body pipe cover 350.

In addition, the reinforcement part 311 is to support the pressing force acting on the power supply means 500 when the extension pipe is used to extend the antenna 510 and the second body pipe cover 350 of the power supply means 500 It can prevent the departure.

At this time, the antenna 5100 of the power supply means 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.

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

In addition, the quadrangular hole 610 of the third sealing member 600 having elastic force is coincident with the quadrangular hole 217 formed on the outer circumferential surface of the first body pipe 210. After adhering to the state, the protrusion 291 of the genital first body pipe cover 290 is inserted into the quadrilateral holes 610 and 217 and fastened to the screw 281. The inner lower surface is in a state of pressing the third sealing member 600 to prevent air from entering the quadrangular hole 217.

However, as shown in FIG. 17, the installation structure of the third sealing member 600 is such that the quadrangular hole 217 formed on the outer circumferential surface of the first body pipe 210 coincides with the quadrangular hole 217. After bonding the hexagonal holes 610 of the third sealing member 600 having elastic force to be in a matched state, the projections 291 of the first body pipe cover 290 are inserted into the hexagonal holes 610 and 217. When combined, the pushed portion of the third sealing member 600 protrudes into the extension pipe 420 at the tip of the protrusion 291, and there is a defect in that foreign matter or hair is caught.

The present invention is devised to solve the above drawbacks, the suction efficiency is improved when suctioning dust or dirt during cleaning, as well as leaking between the first body pipe and the extension pipe and the first body pipe cover. It is an object of the present invention to provide an extension pipe fixing structure of the extension tube for cleaners to prevent foreign substances or hair from being caught in the sealing member installed to block air.

1 is a perspective view of an extension tube according to the prior art,

2 is an exploded perspective view of an extension tube according to the prior art,

Figure 3 is a detailed view showing one end of the first body pipe according to the prior art,

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

5 is a partial cross-sectional perspective view showing one end of a second body pipe according to the prior art,

6 is a perspective view of a first sealing member according to the prior art,

7 is a cross-sectional view taken along the line B-B of FIG.

8 is a partial cross-sectional perspective view showing one end of an extension pipe according to the prior art,

9 is an exploded perspective view in which the pipe fixing housing and the roller seating member and the roller are coupled according to the prior art;

10 is a cross-sectional view taken along the line C-C of FIG.

11 is a cross-sectional view taken along the line D-D of FIG. 9;

12 is a perspective view of a second sealing member according to the prior art,

13 is a cross-sectional view taken along the line E-E of FIG.

14 is a plan view of a roller seating member according to the prior art;

15 is a cross-sectional view taken along the line F-F of FIG.

16 is a partial perspective view showing a state in which a third sealing member is installed in the first body pipe;

17 is a cross-sectional view showing a state in which the first body pipe, the extension pipe, the third sealing member, and the first body pipe cover are assembled;

18 is an exploded perspective view showing an extension tube according to the present invention,

19 is a corresponding view of FIG. 17 showing a sealing structure of a first body pipe cover according to the present invention;

20 is a cross-sectional view taken along the line G-G in FIG. 19.

* Explanation of symbols for main parts of the drawings

200: first extension means 210: first body pipe

217a: extension pipe catching portion 290: first body pipe cover

291: projection 300: second extension means

400: extension control means 420: extension pipe

421: square through hole 500: power supply means

700: sealing member

The present invention for achieving the above object is connected to the lead wire of the suction inlet to be able to smoothly suck the dust in the room is configured to be connected to the first body pipe and the upper portion of the first body pipe A first extension means having a first body pipe cover to be fastened, a second extension means to be connected to a connection portion of the handle member connected to a suction hose for guiding foreign substances to the main body, and through the first extension means When the length adjustment is made between the extension control means and the first and second extension means installed to enable the length adjustment of the first and second extension means to move the foreign matter sucked through the second extension means to the suction hose. In the extension tube of the vacuum cleaner consisting of a power supply means fixed to the first and second extension means so that the power is energized, the first body pipe is a c-shaped An extension pipe catching part is formed to be cut out by the external force and the string end cut by the external force is bent downward by an elastic force, and an upper portion of the extension pipe catching part is attached to cover a sealing member having a predetermined thickness with a plate-like elastic force. The sealing member and the extension pipe catching portion are pressed by the protrusion protruding to the lower portion of the first body pipe cover to limit the axial movement of the extension pipe inserted into the first body pipe.

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

18 is an exploded perspective view showing an extension tube according to the present invention, FIG. 19 is a corresponding view of FIG. 17 showing a sealing structure of a first body pipe cover according to the present invention, and FIG. 20 is a sectional view taken along the line GG of FIG. The same reference numerals are given to the same parts as those in Figs. 1 to 17 for describing the description, and the description thereof is omitted.

The present invention, the first extension means 200 having a first body pipe 210 is configured to be connected to the lead wire of the suction inlet to be able to suck the dust in the room smoothly connected to the power source, and the foreign body The second extension means 300 and the foreign matter sucked through the first extension means 200 are connected to the connection portion of the handle member connected to the suction hose to guide the second extension means 300. When the length adjustment is made between the extension control means 400 and the first and second extension means (200,300) installed so as to be able to adjust the length of the first and second extension means (200,300) to be moved to the suction hose through the Edo both ends are made of a power supply means 500 is fixed to the first and second extension means (200,300) so that the power supply.

Here, the first body pipe 210, the fastening button mounting portion 211, the fastening button 230 is rotatably seated, the base seating portion 212, the lower terminal base 240 is seated, The fixed base seating portion 213 on which the first fixed base 270 is seated, the wire seating portion 214 into which the wire 252 of the terminal connecting member 250 is fitted, and the antenna cover 520. The antenna cover seating portion 215 into which one end is fitted and seated, a sealing member seating portion 216 into which the first sealing member 410 is fitted, and the fixed base seating portion 213 and the antenna cover seating portion 215. ) Is cut out in a U shape between the c) and pressurized by the projection 291 of the first body pipe cover 290 to be bent a predetermined amount toward the fixed base seating portion 213 toward the bottom by elastic force. Elongated pipe catching portion 217a and respective seating portions A body 218 having a protrusion 218a having a hole and an anti-rotation protrusion 218b at an inner circumferential surface thereof so that a wire can be inserted into the lead terminal 251 of the terminal connecting member 250 accommodated in the lower terminal base 240. Consists of

In addition, the extension pipe engaging portion 217a is attached to cover the sealing member 700 having a predetermined thickness with a plate-like elastic force.

Therefore, the anti-rotation part 424 formed at the tip of the extension pipe 420 is the pipe fixing housing in which the second sealing member 440, the C-shaped spring 460, the roller seating member 470, and the roller 480 are installed. After insertion through 430, the first sealing member 410 is inserted to a predetermined depth so as to fit into the rotation preventing protrusion 218b of the first body pipe 210 installed.

Thereafter, when the protrusion 291 protruding to the lower portion of the first body pipe cover 290 presses the sealing member 700 and simultaneously presses the extension pipe catching portion 217a, the extension pipe catching portion 217a. End of the lower portion is lowered to be seated in the square through-hole 421 of the extension pipe 420, so that the extension pipe 420 is no flow in the axial direction.

In addition, the sealing member 700 has an elastic force and presses the extension pipe catching portion 217a of the first body pipe 210 so that the sealing member 700 does not go down to the quadruple through hole 421 of the extension pipe 420. The dust or foreign matter sucked into the 420 may not be caught.

As described above, according to the present invention, a sealing member installed to block the air leaking between the first body pipe, the extension pipe, and the first body pipe cover as well as the suction efficiency is improved when the dust or dirt is sucked during cleaning. It is effective in preventing foreign substances and hair from getting caught.

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 having a first body pipe connected to a lead wire of an inlet body for smoothly inhaling dust in the room and connected to a power source, and a first body pipe cover fastened to an upper portion of the first body pipe And a second extension means adapted to be connected to a connection portion of the handle member connected to the suction hose which guides the foreign matter to the main body, and the foreign matter is moved to the suction hose through the first extension means and the second extension means. Extension tube of the vacuum cleaner comprising an extension control means installed to allow the length adjustment of the first and second extension means, and a power supply means installed so that the power can be supplied even when the length adjustment is made between the first and second extension means. To The first body pipe is formed in a U-shaped cut-out is formed by the extension pipe engaging portion so that the end cut by the external force is bent a certain amount by the elastic force, the upper portion of the extension pipe engaging portion has a constant thickness having a plate-like elastic force Is attached to cover the sealing member, so that the sealing member and the extension pipe catching portion are pressed by the protrusion projecting to the lower portion of the first body pipe cover so as to limit the axial movement of the extension pipe inserted into the first body pipe. Extension pipe fixing structure of the extension tube for cleaners, characterized in that the.