KR102093931B1 - Double-Deck Type Pipe For Vacuum Cleaner - Google Patents

Abstract

The present invention relates to a pipe for a vacuum cleaner, having a double-layer structure. The pipe for a vacuum cleaner, having the double-layer structure includes: a main pipe (3) extended to form an air path in the longitudinal direction; and a sub pipe (5) divided from the main pipe (3) by a diaphragm (7) and extended to be parallel with the main pipe (3) to form a path which an electric wire (21) passes through in the longitudinal direction. An outer wall (11) of the main pipe (3) and an outer wall (13) of the sub pipe (5) except for the diaphragm (7) are connected while maintaining continuity on a cross-section. So, an outer surface (15) is formed. Therefore, the pipe is formed as the double-layer structure. Therefore, the pipe for a vacuum cleaner distributes air between a cleaner main body and a suction member by the single pipe and connects the electric wire at the same time. Therefore, the pipe for a vacuum cleaner improves ventilation performance of the pipe and improves arrangement convenience of the electric wire.

Description

Two-layer vacuum cleaner tube {Double-Deck Type Pipe For Vacuum Cleaner}

The present invention relates to a tube body for a vacuum cleaner having a two-layer structure, and more specifically, by adopting a tube partitioned by a partition plate as an expansion and contraction tube of a vacuum cleaner so that the inside of the tube has a two-layer structure on a cross-section, the vacuum cleaner body and suction It relates to a two-layer vacuum cleaner tube body so that air flow between members and wire connection can be simultaneously realized by a single tube.

In general, a cleaner connects a main body provided with a power source and a suction member that sucks foreign substances to be cleaned, such as dust, through an expansion pipe and a flexible pipe. However, in recent years, as the cleaner performance is improved, a technique for mounting a driving unit such as a motor in a suction member and using the power of the driving unit to increase cleaning efficiency has been proposed.

Therefore, the telescopic pipe is built-in a wire for connecting the power of the cleaner body to the driving part of the suction member, for example, a telescopic extension tube of the vacuum cleaner disclosed in Korean Patent Publication No. 10-2012-0057830.

This extension tube is composed of an inner tube 110 and an exterior 120 movably mounted along an axis thereon, as shown by reference numeral 101 in FIG. 1, and the exterior to embed the wire 241 as above. The inner and outer insulating pipes 220 and 210 extending in the longitudinal direction are attached to the outer surface of 120.

Therefore, in the conventional extension tube 101 as described above, the outer insulating pipe 220 in the folded state is exposed to the outside of the exterior 120, and in the expanded state, the inner insulating pipe 210 is also exposed to the outside of the inner tube 110. As a whole, there was a problem in that the aesthetics of the extension tube 101 was significantly reduced.

In addition, in order to protect the electric wire 241 located outside the inner tube 110 in the unfolded state, the inner insulating pipe 210 is necessarily required. Therefore, in order to protect the entire electric wire 241, the outer insulating pipe 220 is placed on the upper side. Likewise, since it must be disposed outside of the exterior 120, the outer structure of the extension pipe 101 is complicated by the inner and outer insulating pipes 210 and 220, and there is a problem in that maintenance is difficult, such as a possibility of failure or damage.

Patent Publication 10-2012-0057830

The present invention is proposed to solve the problems of the conventional extension tube as described above. In connecting the vacuum cleaner body and the suction member, the tube forming the air passage and the tube passing the electric wire are integrated into one tube. An object of the present invention is to provide a two-layer structure of a tubular body, which makes the appearance of the tubular body connecting the cleaner body and the suction member more beautiful.

In addition, when the tube body is employed in the new tube, the external structure assembled on the tube body and the support tube assembled in the tube body make the protection or support of the wire more stable, and further improves the sealing performance between the exterior body. There are other purposes to make it possible.

In addition, when assembling the exterior on the outer surface of the tube to make a new extension tube, the exterior moving along the tube is smoothly guided by the tube, thereby improving the functionality of movement related to the expansion and contraction of the new extension tube, and thus the failure of the extension tube. Another goal is to make the maintenance of the cleaner more efficient by reducing the damage.

In order to achieve this object, the present invention is a main body extended to form an air passage in the longitudinal direction: and the main body separated from the main body with a partition plate as a boundary, and the main body to form a passage through which the electric wire passes in the longitudinal direction It is made of a side tube extending side by side; but, the outer wall of the main body excluding the partition plate and the outer wall of the sub-pipe body continue to maintain continuity on the cross section to provide a tube body for a vacuum cleaner having a two-layer structure forming an outer surface. .

In addition, it is preferable that the main body and the sub-body have an elliptical cross section as a whole.

In addition, it is preferable to form a foldable telescopic tube together with an external appearance that is slidably fitted on the outer surface as the inner tube.

In addition, it is preferable to include a guide rail that extends in the longitudinal direction along the outer wall of the sub-pipe, protrudes outward in the radial direction from the outer wall to concave a pitch groove, and guides sliding of the exterior. .

In addition, it is preferable to include a pitch groove that extends in the longitudinal direction along the outer wall of the sub-pipe, protrudes inward in the radial direction from the outer wall, to concave the pitch groove.

According to the vacuum cleaner tube of the two-layer structure of the present invention, the tube connecting the vacuum cleaner body and the suction member has a two-layer structure, so that air flows between the cleaner body and the suction member by one tube and simultaneously It can be connected, and since the air passage and the wire passage are divided and divided by the partition plate, it is possible to expect an improvement in ventilation performance or convenience in wire arrangement.

In addition, since the above air passages and wire passages are formed in a two-layer structure inside one tube body, the shape of the tube body can be compacted and the appearance of the tube body can be made beautiful.

In addition, in the flexible connection between the tube body and the exterior, the support tube is disposed inside the tube body and the front end of the support tube is connected to the exterior, so that the electric wire can be stably supported through the support tube. It becomes possible to further improve the sealing performance between the tube bodies.

In addition, since the exterior moving forward and backward along the outer surface of the tube is guided by the outer surface of the tube or the guide rail protruding from the tube for the folding operation of the telescopic tube, it is possible to improve the movement functionality according to the movement of the exterior, and thus Another goal is to make maintenance of the cleaner more efficient by reducing breakdown or damage.

1 is a front sectional view showing a conventional vacuum cleaner extension tube.
Figure 2 is a perspective view showing a vacuum cleaner tube of the two-layer structure according to an embodiment of the present invention.
Fig. 3 is a side view of Fig. 2;
Figure 4 is a perspective view showing a position in which the tube of Figure 2 is applied to the vacuum cleaner telescopic tube unfolded.
5 is a vertical front view showing the telescopic pipe of FIG. 4 in a folded position.
6 is a partially enlarged view of FIG. 5.
7 is an exploded perspective view showing the appearance of FIG. 5 as a center.
8 is an exploded perspective view showing the tube body of FIG. 5 as a center;
9 is a cross-sectional perspective view taken along line AA in FIG. 5.
FIG. 10 is a partially enlarged longitudinal front view showing the telescopic tube of FIG. 5 in an expanded position.
11 is a perspective view showing a tube body for a vacuum cleaner of a two-layer structure according to another embodiment of the present invention.
12 is a side view of FIG. 11;
FIG. 13 is a perspective view showing a vacuum cleaner telescopic tube to which the tube body of FIG. 11 is applied in an unfolded position.
FIG. 14 is a longitudinal front view showing the telescopic pipe of FIG. 15 in a folded position.
15 is an exploded perspective view showing the outer appearance of FIG. 14.
16 is an exploded perspective view showing the tube body of FIG. 14 as a center;
17 is a cross-sectional perspective view taken along line AA in FIG. 14;

Hereinafter, a tube for a vacuum cleaner of a two-layer structure according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The tube body of the present invention is a tube body connecting a main body of a vacuum cleaner and a suction member such as a vacuum brush, as shown by reference numeral 1 in FIGS. 2 and 3, by a main body 3 and an auxiliary body 5 Forming a two-layer structure, as shown in FIG. 4, as the inner tube, the outer tube 10 and the new tube 100 are configured.

Here, the main body 3 is a portion forming an air passage between the main body and the suction member, and is made of a cylindrical body having a hollow circular cross section extending in the longitudinal direction as shown in FIGS. 2 and 3.

In addition, the sub-pipe 5 is a portion forming a wire passage through which the wire 21 passes between the main body and the suction member, and as shown in FIGS. 2 and 3, the length is parallel to the main body 3 Bars extending in the direction, separated from the main body (3) with a dividing plate (7) as a border, forms a wire passage, and is made of a hollow cylindrical body having a crescent-shaped cross section. Accordingly, the adjunct body 5 together with the main body 3 forms an elliptical cross section as a whole. Accordingly, the outer wall 11 of the main body 3 and the outer wall 13 of the sub-pipe 5 are smoothly connected to the tube body 1 to form the outer surface 15 as a whole while maintaining continuity on the cross section.

As described above, the tube body 1 having a two-layer structure can form one telescopic tube 100 that can be folded together with the exterior 10 as an inner tube, as shown in FIGS. 4 to 6. At this time, the exterior 10 is slidably fitted to the outer surface of the tube body 1, so that the telescopic tube 100 is folded or unfolded according to the use state.

In addition, as shown in FIGS. 5 and 6, the tube body 1 is positioned at the rear end of the exterior 10 by a distance d at a folded position where the exterior 10 is fully inserted, and the rear end thereof It is located behind the rear end of the exterior. Therefore, the electric wire 21 sandwiched by the sub-pipe 5 is fixed to the front end of the exterior 25, and forms a stretchable portion 25 that is stretchable in a space S corresponding to the distance d.

On the other hand, the tube body (1), as shown in Figures 5 to 7, includes a support tube (17) to support the upper elastic portion (25). The support pipe 17 is arranged such that its rear end is movable relative to the main body 3 along the inner circumferential surface, and the tip is fixed to the front end side of the exterior 10, and the space S is disposed by the outer circumferential surface. The electric wire 21 supports the elastic part 25. After the sealing material 27 is inserted and coupled to the rear end thereof, the sealing material 27 is fitted with an inner end surface of the rear end of the support tube 17, and a rear end is in close contact with the inner circumferential surface of the tube body 1, and The gap generated between the inner circumferential surface and the outer circumferential surface of the support tube 17 is sealed.

In addition, the tubular body 1, as shown in Figures 2 to 4 and 8, the outer wall of the sub-pipe 5, so that the exterior 10 can be temporarily fixed to the desired position by the lock bundle 50 13) It is provided with a plurality of pitch grooves 20 formed concavely at regular intervals in the longitudinal direction on the upper surface. However, the guide rail 19 protrudes radially outward from the outer wall 13 so that the depth of the pitch groove 20 can be secured. 5) It extends long in the longitudinal direction on the upper surface, to guide the sliding movement of the exterior 10 through the lock bundle (50).

A tube body according to another embodiment of the present invention is shown at 301 in FIG. 11 and 12, as in the embodiment of FIG. 2, the tube body 301 forms a two-layer structure by the main body 3 and the sub-body 5, as shown in FIG. 13, As the inner tube, the new tube 300 is constructed together with the outer wall 10.

Here, since the main body 3 and the sub-body 5 have the same configuration as the main body 3 and the sub-body 5 of FIG. 2, the same structure will not be described in duplicate.

However, as shown in FIGS. 13 to 17, the tube body 301 is a top surface of the outer wall 13 of the sub-pipe 5 so that the exterior 10 can be temporarily fixed to a desired position by the lock bundle 50. The pitch groove 20 is formed concave at a predetermined interval in the longitudinal direction, and the sub-pipe 5 is radially inward from the outer wall 13 so as to secure the depth of the pitch groove 20 The seat 319 is formed to protrude. The pitch groove seat 319 extends long in the longitudinal direction on the ceiling of the sub-pipe 5 to allow the outer wall 13 of the sub-pipe 5 to secure a thickness capable of processing the pitch groove 20. However, since the pitch groove seat 319 does not appear on the external surface of the tube body 301, the appearance of the tube body 301 is made more beautiful, and the outer shape of the tube body 301 and the exterior body 10 are resembled to make it closer. To ensure a consistent match.

Now, the operation of the tube body 1 for a vacuum cleaner of a two-layer structure according to a preferred embodiment of the present invention will be described.

The telescopic pipe 100 to which the pipe 1 of the present invention is applied is in storage, as shown in FIGS. 5 and 6, the pipe 1 and the exterior 10 are in a folded position, and the exterior is folded. (3) is fixed on the tube body (1) by the lock bundle (50) so that it can no longer retreat.

In this state, when the lock bundle 7 is pushed forward, as shown in FIG. 9, first, the button cover 53 is advanced, and accordingly the lock claw 55 is pulled out of the pitch groove 20 and the lock bundle 50 ) Along with the button bracket 51 moves along the guide rail 19, as shown in FIG. 10, as the lock bundle 50 is caught in the pitch groove 20 located in the foremost direction, the telescopic pipe 1 is The maximum length that can be fixed is reached. At this time, the front end of the expansion and contraction section 25 of the electric wire 21 is hung on the leading end of the exterior 10, but the extension and contraction section 25 is extended, so it can cope with the movement of the exterior 10. On the other hand, the support pipe 17, the front end is hung on the rear end of the connecting pipe 22, so that the exterior 3 advances as above, and thus, as shown in FIG. 6, the elastic part 25 is not struck. To prevent it.

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As described above, when the vacuum cleaner is operated in the elongated state, the outside air is strongly sucked together with foreign substances such as dust from the suction member by the vacuum pressure on the body side. At this time, the suction air passes through the air passage through the support pipe 17, but is sealed between the support pipe 17 and the main body 3 by the sealing material 27, and the support pipe 17 further goes In addition to separating the wire passage of the sub-pipe 5 from the air passage, the main pipe 3, that is, the tube 1 and the exterior 10 are also sealed.

On the other hand, when the use is completed and the expansion pipe 100 is to be stored or the length of the expansion pipe 100 is to be reduced, by pressing the lock bundle 50 and retracting it with the exterior 10, another pitch groove at the rear ( 20) is fixed to the outer tube (3) to the tube body (1).

In addition, the tube body 301 is pushed forward by pressing the button cover 353 of the lock bundle 50 shown in FIG. 17 in an assembled state with the exterior 10 shown in FIG. 14, and the rocker slide 357 is advanced. As the fastener 355 is removed from the pitch groove 20, the rocker holder 351 along with the lock bundle 50 moves along the outer surface 13 of the tube body 301, and is located at the foremost end as shown in FIG. As the lock bundle 50 is hung in the pitch groove 20, it reaches the maximum length to which the telescopic pipe 300 can be fixed.

1, 301: tube body 3: subject body
5: adjuvant 7: partition plate
10: appearance 11, 13: outer wall
15: outer surface 17: support tube
19: guide rail 20: pitch groove
21: electric wire 25: expansion and contraction
27: sealing material 50: lock bundle
100, 300: new building

Claims (5)

delete delete The main body (3) extended to form an air passage in the longitudinal direction: and
It is separated from the main body 3 by the dividing plate 7 as a boundary, and the sub-body 5 extending parallel to the main body 3 to form a passage through which the electric wire 21 passes in the longitudinal direction; Done,
The outer wall 11 of the main body 3 excluding the dividing plate 7 and the outer wall 13 of the sub-pipe 5 are connected while maintaining continuity on the cross section to form the outer surface 15,
The main body 3 and the sub-body 5 have an elliptical cross section as a whole,
Foldable telescopic pipes (100,300) are formed together with the exterior (10) that is slidably fitted on the outer surface (15) as an inner tube,
The main body (3) is arranged for relative movement along the inner circumferential surface for a vacuum cleaner of a two-layer structure, characterized in that it comprises a support tube (17) for supporting the expansion and contraction portion (25) of the electric wire (21) by the outer circumferential surface Tube body. The method according to claim 3,
It extends in the longitudinal direction along the outer wall 13 of the sub-pipe 5, protrudes outward in the radial direction from the outer wall 13 to concavely form the pitch groove 20, the outer appearance of the (10) A two-layer structure vacuum cleaner tube body comprising a guide rail (19) for guiding the sliding movement. The method according to claim 3,
Pitch grooves extending in the longitudinal direction along the outer wall 13 of the sub-pipe 5, protruding radially inward from the outer wall 13, so that the pitch groove 20 can be concavely formed The tube body for a vacuum cleaner of a two-layer structure comprising a (319).

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