CN1977753A

CN1977753A - Telescopic vacuum cleaner suction hose

Info

Publication number: CN1977753A
Application number: CNA2006101436206A
Authority: CN
Inventors: 于尔根·希曼
Original assignee: ROXXAN GmbH
Current assignee: Roxxan GmbH
Priority date: 2005-12-08
Filing date: 2006-11-02
Publication date: 2007-06-13
Anticipated expiration: 2026-11-02
Also published as: EP1795103A3; KR20070061338A; ATE555706T1; US20070130724A1; DE102005059107B3; EP1795103B8; EP1795103A2; RU2006136852A; EP1795103B1; CN1977753B; RU2384290C2

Abstract

A telescopic dust cleaner suction pipe (10) consists of one outer pipe (11) and an axially slidable inner pipe (12) that has lock recesses (15) along the coating line from the inner pipe outer coating surface (14) to the pipe central axis (M) having inward projecting locking recesses (15). The locking recesses operate with at least one adjustment body (24) that alternately locks or releases on the outer pipe's held adjustment device (18). The outer pipe has a second locking recess (16) open wide away from outer surface (17) and the pipe central axis (M). The outer pipe (11) is joined by an accessional outer pipe (13), the end face to the adjustment device (18) hold an accessional adjustment device (21), at least one adjustment body (24) operates with each second locking recess (16) of the outer pipe (11).

Description

Telescopic vacuum cleaner suction hose

Technical field

The present invention relates to a kind of according to claim 1 telescopic vacuum cleaner suction hose as described in the preamble.

Background technology

A kind of such telescopic vacuum cleaner suction hose has been described among EP 1 033 103 B1.By the known telescopic vacuum cleaner suction hose of EP1 033 103 B1 particularly because lower manufacturing and assembly expenses but favourable.Yet this known telescopic vacuum cleaner suction hose it seems it is to need to replenish about its axial length adjustment.

Summary of the invention

Telescopic vacuum cleaner suction hose from according to EP 1 033 103 B1 the objective of the invention is to, but a kind of telescopic vacuum cleaner suction hose about its axial length adjustment general operation is provided.

Feature in conjunction with claim 1 preamble, this purpose reaches like this according to the feature that claim 1 shows, be that outer tube has the second buckle groove, they are outwardly open from far ultraviolet tube outer surface and pipe axis, outer tube is by an additional telescopic overlap joint of outer tube, support an additional interlock, the second buckle groove co-operating of its at least one interlock body and outer tube at its pipe end towards interlock.

Telescopic vacuum cleaner suction hose of the present invention is characterised in that, interior pipe has away from inner tube outer surface to managing the axis over there to projecting inward buckle groove, and outer tube has the second buckle groove, these second buckle grooves opposite direction away from outside open wide outside tube outer surface and the tubular axis alignment.Because this form of implementation, the second buckle groove of the buckle groove of interior pipe and outer tube moves past in the stretching motion process each other non-contravention, thereby hinders reeve property not, for example when the shortening that overall apparatus is determined by packing.

The second buckle groove away from outer tube outer surface and the outer outer tube that opens wide of tubular axis alignment allows to install an additional outer tube simultaneously, and it can be provided with the same interlock that has as outer tube by the principle of work and power at least.

Telescopic vacuum cleaner suction hose of the present invention generally allows the best optional shortening of whole pipe unit and allows big extraction length to comprise that many are else axially adjusted possibility.

In other form of implementation of the present invention, each second buckle groove of each buckle groove of interior pipe and outer tube is arranged on identical caliber in the plane.This set allows the favourable mode of operation along the same bus of pipe unit of human engineering.

Another favourable scheme of the present invention is that when two interlocks were in its interlocking position, the second buckle groove of the buckle groove of interior pipe and outer tube axially aligned mutually.This set also is important about the seal of tube on the end limit of interior pipe, wherein the length of interior pipe is specified to seal of tube spare to be positioned at its sealing surface guarantee a sealing uniformly with respect to the second buckle groove undeformed outer tube wall zone.

Another is that by form of implementation of the present invention each second buckle groove of each buckle groove of interior pipe and outer tube has different slot pitches.Therefore each buckle groove of interior pipe has a narrow slot pitch in this case, allows other accurate adjustment whole when dust suction work, and respectively second buckle groove of outer tube can consider different people's height with its big slot pitch of comparing.

Can constitute in the slot pitch of extreme case lower outer pipe and to make outer tube only have two buckle grooves, one of them contiguous interlock and another are arranged on the outer tube zone away from interlock.

What must replenish is that each second buckle groove is formed in two between the depression of the particularly long rectangle of the outer surface protrusion of outer tube.Therefore the bottom surface of each second buckle groove is consistent with the outer surface of outer tube.

Description of drawings

Be shown in each accompanying drawing, wherein according to a preferred embodiment of the present invention:

The telescopic vacuum cleaner suction hose of one three part of Fig. 1 is at the side view that pushes away position together;

Fig. 2 turns over view after 90 ° by the view of Fig. 1 around the pipe axis;

Fig. 3 is by the axial cutaway view of the cutting line intercepting of representing with III-III among Fig. 2;

Fig. 4 is roughly by the enlarged drawing of the thin portion that surrounds with circle among Fig. 3 and represent with IV;

Fig. 5 with 6 by the situation of the identical telescopic vacuum cleaner suction hose of the view of Fig. 1 and 2 in the extraction length of adjusting slightly bigly;

The axial cutaway view that Fig. 7 roughly intercepts by the cutting line of representing with VII-VII among Fig. 6; And

Fig. 8 is roughly by the enlarged drawing of the thin portion that surrounds with circle among Fig. 7 and represent with VIII.

The specific embodiment

Always represent a telescopic vacuum cleaner suction hose in each accompanying drawing with mark 10.

Telescopic vacuum cleaner suction hose 10 has an outer tube 11, can be at the additional outer tube 13 of outer tube axis to the interior pipe 12 that moves and last telescopic overlap joint outer tube 11.

Interior pipe 12 has a plurality of buckle grooves 15 that protrude to pipe axis M away from inner tube outer surface 14 over there.Opposite outer tube has a plurality of second buckle grooves 16, and it is outwardly open away from outer tube outer surface 17 and pipe axis M.Therefore the bottom surface of each second buckle groove 16 is consistent with outer tube outer surface 17 and therefore constitutes a undeformed tube wall zone 35.

The additional outer tube 13 of telescopic overlap joint outer tube 11 does not have the buckle groove, and it constitutes smooth generally.

Whole pipes

11,12 and 13 have columniform cross section at least basically.

Outer tube 11 has an interlock 18 at its pipe end 19, and additional outer tube 13 has an additional interlock 21 at its pipe end 20.Two

interlock

18,21 formations are substantially the same, thereby adopt identical mark for similar part identical or that play same function.

Interlock

18,21 inserts by means of the axial segmentation of guide pin bushing 22 respectively and remains in the corresponding pipe end 19,20.Corresponding guide pin bushing 22 constitutes one and is molded over interlock body 24 on the guide pin bushing 22 by means of easily curved supporting reed 23 materials sealedly.Each guide pin bushing 22 is handled sleeve 25 overlap joints by one, and the latter can move around along mutually opposite axial direction x and z on the contrary with a spring restoring force in the torsion-bar spring 26 of the roughly part ring-type of the outer surface upper support of corresponding guide pin bushing 22 respectively.The tache motorice of representing corresponding torsion-bar spring 26 simultaneously with mark B, it axially drives by handling sleeve 25.

According to each accompanying drawing, an interlocking protuberance 27 is with interlock body 24 corresponding its interlocking positions that remain on.If carry out the axial adjustment of device, then only need to promote respectively to handle sleeve 25, thereby can upwards forward unlocked position to from its interlocking position on guide pin bushing 22 by means of the interlock body 24 (it utilizes one of skew space 28 location) that supporting reed 23 connects rotationally along one of x or z direction.

In order to prevent reversing between outer tube 11 and the interior pipe 12, guide pin bushing 22 fixing on outer tube 11 has the roughly guide lug radially 29 of spring-like, and it can embed in the axial elongated slot 30 of interior pipe 12 according to the tongue-and-groove ways of connecting with moving axially.

Though not shown in the accompanying drawing, anti-the reversing between outer tube 11 and the additional outer tube 13 can be similar to above-mentioned formation.But also possible, be fixed on the additional outer tube 13 guide pin bushing 22 by unshowned mode with one roughly the direction recess of groove shape in the side around the pipe circumferencial direction roughly grow up outer tube 11 juts 31 of rectangle of interlocking.

As can finding out by accompanying drawing, according to shown in embodiment, each buckle groove 15 of interior pipe 12 and each buckle groove 16 of outer tube 11 have identical slot pitch.For this situation importantly, the length in the inner end zone 32 of interior pipe 12 is specified to make in the seal of tube spare 33 on inner limit of pipe 12 can be close to outer tube 11 undeformed tube wall zones 35 between the jut 31 of each long rectangle with its sealing surface 34.

The flow direction of representing air with y.

Claims

1. telescopic vacuum cleaner suction hose (10), comprise an outer tube (11) and can be axially movable with respect to outer tube in pipe (12), it has the buckle groove (15) that over there protrudes to pipe axis (M) away from inner tube outer surface (14) along a bus, these buckle grooves selectively throw off with at least one interlock body (24) of going up the interlock of supporting (18) at outer tube (11) or interlock co-operating; It is characterized in that outer tube (11) has the second buckle groove (16), these second buckle grooves are outwardly open away from outer tube outer surface (17) and pipe axis (M); Outer tube (11) is by an additional telescopic overlap joint of outer tube (13), support an additional interlock (21), second buckle groove (16) co-operating of its at least one interlock body (24) and outer tube (11) at its pipe end (20) towards interlock (18).

2. according to the described telescopic vacuum cleaner suction hose of claim 1, it is characterized in that each second buckle groove (16) of each buckle groove (15) of interior pipe (12) and outer tube (11) is arranged on same caliber in the plane.

3. according to claim 1 or 2 described telescopic vacuum cleaner suction hoses, it is characterized in that when two interlocks (18,21) when being in its interlocking position, the buckle groove (16) of interior pipe (12) and the second buckle groove of outer tube (11) axially align mutually.

4. according to the described telescopic vacuum cleaner suction hose of claim 3, it is characterized in that, when two interlocks (18,21) when being in its interlocking position, in the pipe buckle groove (15) of (12) and the second buckle groove (16) of outer tube (11) axially align mutually, the length of managing (12) in wherein be specified to the seal of tube spare (33) that makes its inner limit with its sealing surface (34) be positioned at outer tube (11) with respect to second buckle groove (16) the undeformed tube wall zone (35).

5. according to one of claim 1 to 4 described telescopic vacuum cleaner suction hose, it is characterized in that each second buckle groove (16) of each buckle groove (15) of interior pipe (12) and outer tube (11) has different slot pitches.

6. according to the described telescopic vacuum cleaner suction hose of claim 5, it is characterized in that each buckle groove (15) of interior pipe (12) has a narrow slot pitch and each buckle groove (16) of comparing outer tube (11) with it has a bigger slot pitch.

7. according to the described telescopic vacuum cleaner suction hose of claim 6, it is characterized in that, outer tube (11) only has two second buckle grooves (16), one of them contiguous interlock (18) and another is arranged on the zone away from interlock (18) of outer tube (1).

8. according to one of claim 1 to 6 described Telescopic device suction pipe, it is characterized in that each second buckle groove (16) is formed in two between the jut (31) of the particularly long rectangle of the outer surface protrusion of outer tube (11).