KR100809743B1 - Pipe for cleaner - Google Patents

Abstract

An extension pipe for a vacuum cleaner is provided to supply power efficiently by contacting power terminals with a power pipe to be slid on the external surface of the power pipe, even if the length of an extension pipe is changed. An extension pipe for a vacuum cleaner comprises suction guiding pipes(50,52) guiding suction of air and impurities, a power supply pipe(60) installed at one side of the suction guiding pipes to supply power. The power supply pipe consists of power terminals(62), a power pipe(64) slid with the power terminals, and power cases made of double cases to be slid with respect to each other. The power cases include an external case(66) placed at the outside, and an internal case(68) selectively slid inside the external case. The external case and the interval case have the power terminals and the power pipe. The power terminal surrounds the external surface of the power pipe and has an internal projection contacted to the external surface of the power pipe.

Description

Cleaner Tube {Pipe for cleaner}

1 is an exploded perspective view of a cleaner to which an embodiment of the present invention is employed.

Figure 2 is an exploded perspective view showing a preferred embodiment configuration of a cleaner extension tube according to the present invention.

3 is a perspective view of a power supply terminal constituting an embodiment of the present invention.

Figure 4 is a perspective view showing a state in which the power pipe constituting the embodiment of the present invention is fixed to the outer case.

5 is a perspective view showing a state in which a power supply terminal constituting an embodiment of the present invention is installed.

6 is a perspective view showing another embodiment of the power supply terminal constituting the embodiment of the present invention.

7 is a partial plan view of the inside of the extension tube showing a state in which the power supply terminal shown in FIG.

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

1. Nozzle 5. Extension tube

50. Daegu Viewing 52. Small Ball Viewing

60. Power supply pipe 62,63. Power terminal

64. Power Pipe 70. Handle

The present invention relates to a cleaner, and more particularly, to an extension pipe of a cleaner provided with a power supply terminal to which power is supplied and a power pipe in sliding contact therewith.

The vacuum cleaner is a device to reduce human labor by cleaning with the power of a machine. A vacuum cleaner using suction force and a water cleaner that injects water and air at the same time by spraying water, as well as foreign matters on the floor by spraying steam recently. Various types of steam cleaners for removing oil have emerged.

And, the nozzle of the steam cleaner is provided with a steam generating device for generating steam therein, the steam generated by the steam generator soaks the mop attached to the nozzle to clean the mop of the floor. .

However, the steam generator of such a steam cleaner is provided in the nozzle spaced apart from the main body. Therefore, there is a problem in that the steam generator is operated by supplying power supplied to the main body to the nozzle again. That is, the conventional extension pipe serves to guide the air and foreign matter sucked through the nozzle to the main body, but in such a steam cleaner, the extension pipe should serve to supply power to the nozzle.

However, since the extension tube of the general cleaner is formed to be adjustable in length, when the wire is embedded in the extension tube, there is a problem that a disconnection occurs when the length of the extension tube is changed. have.

The present invention has been proposed to solve the problems described above, by providing a power pipe of a predetermined length to make a sliding contact with the power terminal, to provide an extension pipe of the cleaner is smooth power transmission even when the length of the extension pipe is changed. .

Extension tube of the cleaner according to the present invention for achieving the above object,

A suction guide tube which guides the suction of air and foreign substances and has an adjustable length; It is provided on one side of the suction guide tube, and has a configuration including a power supply tube for supplying power; The power supply pipe may include a power supply terminal to which power is supplied, a power pipe in sliding contact with the power supply terminal, and a power case forming an appearance.

According to the present invention as described above, there is an advantage that the power supply to the nozzle is smooth.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention.

1 is a perspective view of a cleaner employing an extension tube according to the present invention.

As shown therein, the cleaner according to the present invention includes a nozzle (1) for guiding suction of air and foreign substances while moving in a state close to the bottom surface, a body (3) in which a plurality of parts are built, and a length adjustment. Extension tube 5 is configured to be capable of, and is connected to the extension tube 5 is composed of a connecting hose 7 and the like of elastic material for guiding air and foreign matter.

In more detail, the nozzle 1 and the main body 3 are spaced apart, and the extension pipe 5 and the connection hose 7 are provided between the nozzle 1 and the main body 3 to provide air and foreign matter. Will guide the flow. That is, one end (front end) of the extension pipe 5 is connected to the nozzle 1, and one end (rear end) of the connection hose 7 is coupled to the front end of the main body 3.

The nozzle 1 is a portion into which foreign matter attached to the cleaning surface (bottom surface) flows. That is, it is a portion in which foreign matter on the bottom surface is introduced together with the air, and a steam generator (not shown) for generating steam is installed inside the nozzle 1. Therefore, the mop can be cleaned by the steam generated by the steam generator. Since the cleaner using the steam has been released in recent years, the description of the basic functions of the steam cleaner will be omitted.

The other end (rear end) of the extension pipe 5 is provided with an operation handle 9. The operation handle 9 is a part for the user to easily grip during the cleaning operation, the front of the operation handle 9 is formed with an operation unit 9a for allowing the user to operate the vacuum cleaner.

Therefore, the user can control the operation of the cleaner and the strength of the cleaner by operating the manipulation unit 9a while holding the operation handle 9 with one hand. In addition, a safety switch (9b) is provided inside the operation handle (9) is configured to control the off (off) of the emergency steam generator.

Inside the main body 3, a motor assembly (not shown) that rotates by a power source supplied from the outside to generate a suction force, and a plurality of parts such as a dust collecting unit 3a in which foreign substances in the air are filtered and stacked are installed.

Therefore, when power is applied from the outside and a suction force is generated, external air and foreign matter are sucked through the nozzle 1 and flow into the main body 3 via the extension pipe 5 and the connection hose 7. The foreign material introduced into the main body 3 is filtered by a filter (not shown) provided in the dust collecting unit 3a and accumulated in the dust collecting unit 3a.

The main body 3 is provided with a main body wheel 3b for facilitating movement, and a main body handle 3c for facilitating gripping of a person is formed at the distal end.

2 to 5 show the configuration of the extension pipe 5 in detail. That is, FIG. 2 is an exploded perspective view of the extension tube 5, and FIG. 3 is a perspective view of the power supply terminal shown in FIG. 4 and 5 respectively show installation states of both ends of the power pipe shown in FIG. 2.

As shown in these figures, the extension pipe 5 consists of two pieces. That is, the suction guide pipe (50, 52) for guiding the suction of air and foreign matter introduced through the nozzle (1), and the power supply pipe (60), etc. are installed below the suction guide pipe (50, 52) Is done.

The suction guide pipe (50, 52) is the same as the conventional extension pipe, made of a circular pipe, it is composed of a double (dual) of adjustable length. That is, the suction guide pipe (50, 52) is composed of a relatively large diameter pipe 50, and a relatively small diameter pipe 52. The small diameter tube 52 slides in and out of the large diameter tube 50.

The power supply pipe 60 is provided below the suction guide pipes 50 and 52 to guide the power supplied from the outside to the nozzle 1. That is, power is supplied to the main body 3 from the outside, and this power is also supplied to the nozzle 1 to operate a steam generator (not shown) built in the nozzle 1.

The power supply pipe 60 includes a power supply terminal 62 to which power is supplied, a power pipe 64 in sliding contact with the power supply terminal 62, and power supply cases 66 and 68 forming an appearance. do.

The power cases 66 and 68 are made of a double case which slides with each other. That is, the outer case 66 is provided on the outside, and the inner case 68 to slide in and out selectively inside the outer case 66.

Looking in more detail, the outer case 66 is composed of an outer case 66 provided on the lower side of the large diameter tube 50 and an inner case 68 provided on the lower side of the small diameter tube 52. Accordingly, the outer case 66 has a length corresponding to the large diameter tube 50, and the inner case 68 has a length corresponding to the small diameter tube 52.

The outer case 66 is formed of an outer cover 66 ′ forming a lower surface and a side surface, and an outer cap 66 ″ forming an upper surface of the outer case 66. It is coupled to the top of the cover 66 'to form a predetermined space therein.

The upper surface of the outer cap 66 "is fixed to the bottom of the large diameter tube 50. Therefore, the outer cap 66" has a shape corresponding to the bottom surface of the large diameter tube 50. That is, the upper surface of the outer cap 66 ″ is formed to be recessed to be rounded downward.

The inner case 68 is formed of an inner cover 68 ′ forming a lower exterior, an inner cap 68 ″ forming an upper exterior, etc. Therefore, the inner cap 68 is formed on top of the inner cover 68 ′. 68 ") is tightened. The inner cover 68 ′ slides in and out of the outer cover 66 ′, and the inner cap 68 ″ slides in and out of the outer cap 66 ″.

The inner cap 68 "is formed in a shape corresponding to the bottom surface of the small-diameter tube 52. Therefore, the inner cap 68" is recessed such that the central portion is rounded downwardly like the outer cap 66 ". It has a shape.

The power terminal 62 and the power pipe 64 are installed inside the outer case 66 and the inner case 68. Looking in more detail, the power supply terminal 62 is built in the vicinity of the left end of the inner case 68, the power pipe 64 is installed long in the longitudinal direction inside the outer case (66).

The power supply terminal 62 has a configuration surrounding the outer surface of the power pipe (64). That is, as shown in detail in FIG. 3, the power supply terminal 62 is formed in a cylindrical shape to surround the outer surface of the power pipe 64. The power supply terminal 62 is preferably made of a good electrical conductivity material, such as brass or copper.

In the cylindrical power supply terminal 62, the upper surface (left side in FIG. 3) is cut in the longitudinal direction. Thus, the one side of the cylindrical power supply terminal 62 is cut in order to make the power supply terminal 62 have its own elasticity. That is, the power pipe 64 is inserted into the power terminal 62 and slides. At this time, in order to smoothly slide the power pipe 64, a change in the inner diameter of the power terminal 62 should be possible to some extent. Because.

On the other hand, the power supply terminal 62 is formed with an inner protrusion 62 'protruding inward. That is, an inner protrusion 62 'protruding inward (having a recessed shape when viewed from the outside) is formed near the left and right side ends of the power terminal 62 having a cylindrical shape, and the inner protrusion 62 is formed. The inner circumferential surface of ') is in contact with the outer circumferential surface of the power pipe 64.

As described above, two inner protrusions 62 'are preferably formed, but one or three or more inner protrusions 62' may be formed.

The bottom surface of the right end of the power supply terminal 62 extends further to the right to form a terminal fixing portion 62 ", and the terminal fixing portion 62" is formed with a terminal hole 62 "a. The terminal hole 62 "a is for fixing the power terminal 62 to the left end of the inner cover 68 '. One end of a power line for supplying power from the main body 3 is connected to the power terminal 62 as described above.

In addition, the power supply terminal 62 is fixedly installed inside the left end of the inner cover 68 '. Therefore, the inside of the left end of the inner cover 68 'is configured such that the power terminal 62 is not mounted and flows. That is, although not shown, a plurality of jaws are formed inside the left end of the inner cover 68 'to prevent the power terminal 62 from flowing.

The power pipe 64 is made of a hollow hollow shaft, and is formed of a material having excellent electrical conductivity, such as brass or copper. The power pipes 64 are formed in pairs and are spaced apart from each other by a predetermined distance. Therefore, a positive (+) and a negative (-) current flow through each of the pair of power pipes 64, respectively.

A power line connecting the nozzle 1 to the steam generator is inserted into and fixed to the left end of the power pipe 64. The left end of the power pipe 64 is fixed to the outer cover 66 '.

Therefore, a fixed edge 64a protruding outward is formed near the left end of the power pipe 64, and a pipe fixing jaw in which the fixed edge 64a is mounted near the left end of the outer cover 66 '. 66'a is formed.

Two pipe fixing jaws 66'a are provided, that is, as shown in FIG. 4, a pair of pipe fixing jaws 66'a spaced a predetermined distance from inside and outside the outer cover 66 '. Formed across it. Therefore, the fixed edge 64a is inserted and fixed between the pair of pipe fixing jaws 66'a.

Although not shown in detail, the pipe fixing jaw 66'a is provided with a groove in which the pair of power pipes 64 are seated. That is, semicircular grooves corresponding to the bottom shape of the power pipe 64 are formed, respectively.

On the other hand, the large diameter tube 50 and the small diameter tube 52, and the handle 70 is provided between the outer case 66 and the inner case 68. The handle 70 is to allow the user to adjust the length of the extension tube 5, the appearance is formed by the handle cover 72 and the handle cap 74, the handle cover 72 and the handle The handle 74 is built in the cap 74. The handle guide 76 is fixed to the upper end (in Figure 2) of the large diameter tube 50.

In addition, as shown in the handle cover 72 and the handle guide 76, the suction guide pipe (50, 52) is formed with holes (hole) through which the power supply pipe 60, respectively.

Hereinafter, the operation of the extension tube of the cleaner having the configuration as described above and the cleaner employing the extension tube will be described.

First, when the cleaner main body 3 to which the nozzle 1 is connected is operated, suction power is generated by suction force generating means (motor, etc.) provided in the cleaner main body 3, and thus the suction body is formed on the bottom surface of the nozzle 1. Dust and external air on the cleaning surface (bottom surface) are sucked in through the suction port (not shown).

In addition, the air and the foreign matter sucked through the nozzle 1 are introduced through the suction guide pipes 50 and 52 and the connection hose 7 to be collected into the main body 3 and collected.

On the other hand, the user can clean the bottom surface using steam as needed. At this time, the steam generator installed inside the nozzle 1 is operated to generate steam, which is operated by power supplied from the outside.

Next, look at the function of the extension pipe (5).

As described above, the extension pipe 5 is composed of suction guide pipes 50 and 52 and a power supply pipe 60, and the suction guide pipes 50 and 52 and the power supply pipe 60 are doubled. ) Consists of pipes, and slidingly coupled to each other.

Therefore, the small diameter tube 52 can adjust the length of the extension tube 5 by the length that can be inserted into the large diameter tube 50. When the small-diameter tube 52 and the large-diameter tube 50 overlap each other, the outer case 66 and the inner case 68 also overlap each other.

In this case, the power pipe 64 slides with the power terminal 62, and the power pipe 64 flows into the inner case 68. That is, as shown in FIG. 4, the left end of the power pipe 64 is fixed to the outer cover 66 ′, and the right end of the power pipe 64 is the power terminal 62 as shown in FIG. 5. Since the inner case 68 is slidingly inserted into the outer case 66, the power pipe 64 is gradually moved to the right side and inserted into the inner cover 68 ′.

In this case, the power pipe 64 and the power terminal 62 are always in contact with each other regardless of the change in the length of the extension pipe (5). Accordingly, power from the outside introduced into the main body 3 is transmitted to the steam generator of the nozzle 1. That is, the power supply terminal 62 is connected to the main body 3 by an electric wire, and the power pipe 64 is connected to the steam generator of the nozzle 1 by an electric wire. Power is also supplied to the nozzle 1.

Meanwhile, FIG. 6 shows another embodiment of the power supply terminal 62. That is, although the power terminal 62 has a cylindrical shape in the above, another configuration of the power terminal 62 is shown in FIG. 6.

As shown in the drawing, the power supply terminal 63 includes a fixed portion 63 'fixed to the power supply cases 66 and 68, a contact portion 63 " contacting both sides of the power pipe 64, and the like. That is, the fixing portion 63 'is fixedly installed on the inner cover 68' or the inner cap 68 ". Therefore, the fixing part 63 'is formed with a fixing hole 63'a for fixing the power terminal 63 therethrough.

In addition, the contact portion 63 "is bent one or more times, and the bent portion is configured to contact the outer surface of the power pipe 64. That is, the contact portion 63" is rounded as shown. Many are bent to form a wave (viewed from the front of FIG. 6).

The contact portions 63 "extend from left upper and lower ends of the fixing portion 63 'to the left, respectively. That is, the contact portions 63" are formed in pairs and spaced apart from each other by a predetermined distance. Therefore, the right end of the power pipe 64 is inserted into the pair of contact portions 63 ″ and contacts them.

FIG. 7 is a plan view illustrating a case in which the power supply terminal 63 and the power pipe 64 shown in FIG. 6 are in contact with each other. As shown in the drawing, since the contact portion 63 ″ of the power supply terminal 63 always comes into contact with the outer surface of the power pipe 64, power supply to the nozzle 1 is smoothly performed.

Of course, in the above, the case where the contact portion 63 ″ is made of a pair is illustrated, but such a contact portion 63 ″ may be made of only one, or three or four may be provided.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

For example, in the above embodiment, the power terminals 62 and 63 are installed in the inner case 68, and the power pipe 64 is installed in the outer case 66. The opposite is also possible. That is, the power terminals 62 and 63 may be installed in the outer case 66, and the power pipe 64 may be installed in the inner case 68.

The extension pipe of the cleaner according to the present invention as described above is provided with a power supply pipe for supplying power to the nozzle, the power supply pipe is provided with a power supply terminal for supplying power from the main body and a power pipe for transferring power to the nozzle. . The power supply terminal is always in contact with the power pipe.

Therefore, even when the length of the extension pipe changes, the power supply terminal is always in contact with the power pipe while sliding on the power pipe outer surface, so that the power supply is not interrupted.

In the present invention, since the configuration for transmitting power in the extension tube is made by the power pipe and the power supply terminal instead of the electric wire, problems such as disconnection of the electric wire do not occur.

Thus, according to the present invention, there is an advantage that the power supply to the nozzle more stably possible, which contributes to improving the reliability of the cleaner.

Claims (8)

A suction guide tube (50, 52) for guiding suction of air and foreign substances and having a length adjustable; It is provided on one side of the suction guide pipe (50, 52), and has a configuration including a power supply pipe 60 for supplying power; The power supply pipe 60, A power supply terminal (62,63) to which power is supplied, a power pipe (64) in sliding contact with the power supply terminals (62, 63), and a power case (66,68) forming an appearance Extension tube of vacuum cleaner. According to claim 1, wherein the power case (66, 68), Extension tube of the vacuum cleaner, characterized in that consisting of a double case sliding to each other. The method of claim 2, wherein the power case (66, 68), An outer case 66 provided on the outside, Extension tube of the cleaner, characterized in that it comprises an inner case (68) selectively sliding in and out inside the outer case (66). According to claim 3, wherein the outer case 66 and the inner case 68, Extension tube of the cleaner, characterized in that the power supply terminal (62, 63) and the power pipe (64) is provided. The power supply terminal 62 according to any one of claims 1 to 4, Extension tube of the cleaner, characterized in that for wrapping the outer surface of the power pipe (64). The power supply terminal 62 according to claim 5, Protruding inward, the extension pipe of the cleaner, characterized in that the inner projection 62 'is formed in contact with the outer surface of the power pipe (64). The power supply terminal 63 according to any one of claims 1 to 4, A fixing part 63 'fixed to the power cases 66 and 68; Extension tube of the cleaner, characterized in that the contact portion (63 ") is provided in contact with both sides of the power pipe (64). The method of claim 7, wherein the contact portion 63 ", The extension pipe of the cleaner, which is bent one or more times, and a part of which is in contact with the outer surface of the power pipe (64).

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