CN201021687Y

CN201021687Y - A flexing pipe structure

Info

Publication number: CN201021687Y
Application number: CNU200720105777XU
Authority: CN
Inventors: 黄飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2008-02-13
Anticipated expiration: 2017-01-24

Abstract

A telescopic pipe structure includes an inner pipe and an outer pipe, a locked structure connects the inner pipe and the outer pipe; the locked structure includes a rotary sleeve, a positioning bead, a connection sleeve, a plurality of positioning grooves is distributed in intervals along the axial on the outer surface of the inner pipe; the connection sleeve is movably suited out of the inner pipe, a limiting hole is opened on the outer surface of the connection sleeve which is matched with the positioning bead; the rotary sleeve is movably suited out of the inner pipe, the underside of the rotary sleeve is suited on the upside of the connection sleeve, and the rotary sleeve is connected with the connection sleeve, the arc shape convex part matched with the positioning bead is arranged on the inner wall of the rotary sleeve, on the convex part, an inner concave part is arranged on the convex part, under positioning status, a part of positioning bead is extruded inside the positioning groove by the convex part, a part of the positioning bead is penetrated out of the limiting hole, and is contacted with the convex part. The utility model is a telescopic structure using rotary exertion method to change the length. The utility has the advantages that the structure is simple and reasonable, as well as the application is convenient.

Description

A kind of flexible pipe structure

Technical field

The utility model relates to a kind of flexible pipe structure, and this telescopic pipe can extensively be quoted on cleaning meanss such as mop, vacuum cleaner.

Background technique

The most traditional mop or vacuum cleaner, the length of its handle is fixed, and different people or environment are different to the requirement of decreased food, if decreased food is fixed, its adaptability is just not strong, makes troubles for our use.

For making vacuum cleaner or mop more convenient in use, people become the handle design of vacuum cleaner or mop the structure of telescopic pipe, as a patent No. is that the Chinese utility model patent " dust collector expansion pipe " of ZL02220920.4 (notification number is CN2549884Y) has disclosed the telescopic pipe so a kind of, mainly is made up of interior pipe, outer tube.Interior pipe is gone up stepping and is provided with the location pit, and outside the pipe, an end secure liner cover, its improvements were to be hinged with the seesaw button on the neck bush in outer tube sleeve was contained in, and an end of this button is connected with neck bush by spring, and the other end is equipped with stop pin.During locking, the external part of stop pin sees through one on the interior pipe of neck bush insertion and locatees in the pit.Because locating stud can more in depth insert the location pit, so the utility model guaranteed reliable locking from design principle, even long-term the use can not become flexible slippage yet.Also having an application number is that the Chinese invention patent " dust collecting expansion pipe for vacuum cleaner " of ZL200610040292.7 (publication number is CN1843282Y) has disclosed a kind of such telescopic pipe, comprise outer tube, interior pipe, gliding movement targeting structure and locking framework, it is characterized in that locking framework is: the inner tube outer surface upper edge is axially arranged with groove, be provided with locking edge to the extension of cell body central authorities on this a groove two side or the sidewall, offer locking notch or locking aperture on this locking edge; Radially sliding of outer tube is provided with a latch hook, and this latch hook stretches in the groove, and its anterior coupler body is positioned at the locking edge back side; The latch hook rear portion extends to outer tube outside directly links to each other as button or with operating device on being located at outer tube; There is an elastic element to act on the latch hook, and radially outwards driving of force direction, force the coupler body on the latch hook to embed locking notch or the locking aperture from the contraposition of the locking edge back side.

Above-mentioned two patents all are a kind of telescopic pipe, and it is used on the vacuum cleaner, just constitute telescopic handle on the vacuum cleaner, easy for people to use, their differences of two are, the locking structure difference that is adopted, but a common ground is arranged between them, it is exactly the locking structure that has all adopted a kind of push type, it pushes stop pin or the button that exposes outer tube in use, and with the contact locking, thereby pipe is to change length in the pulling, loose one's grip stop pin or push-button reset and lock again.The locking structure of this push type has certain disadvantages, because stop pin or button are to expose, the user may run into stop pin or button absent-mindedly when use has the vacuum cleaner of such telescopic pipe like this, and changes the length of telescopic pipe inappropriate the time.

So above-mentioned flexible pipe structure also can improve further.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of mode of exerting oneself with rotation to change the flexible pipe structure of its length at above-mentioned prior art present situation, and it has advantage simple and reasonable, easy to use.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of flexible pipe structure, include interior pipe, outer tube, and the outer tube movable set can move to axial outside interior pipe and between the two, links to each other by a locking structure between outer tube and the interior pipe; It is characterized in that described locking structure includes rotating sleeve, positioning bead, connecting sleeve, be distributed with at the outer surface upper edge of interior pipe axially spaced-apart and a plurality ofly establish locating slot in it for the positioning bead card; The connecting sleeve movable set is outside interior pipe, and the connecting sleeve lower end links to each other with an end of outer tube, and the outer surface of connecting sleeve has one and positioning bead matches and the spacing hole that can wear for the positioning bead activity; Rotating sleeve is movably set in outside the interior pipe, the bottom of rotating sleeve is set in the top of connecting sleeve and links to each other with connecting sleeve, and rotating sleeve can internally be managed mutually and connecting sleeve rotates, on the inwall of rotating sleeve, have one and the positioning bead curved protuberance that matches, have inner fovea part on the protuberance, under positioning states, the positioning bead part is squeezed in the locating slot by protuberance, and the part passes spacing hole and contacts with protuberance.

Improve further, be provided with the torsion spring that the rotating sleeve after the rotation is resetted between above-mentioned rotating sleeve and the connecting sleeve, an end and the rotating sleeve inwall of torsion spring are fixed, and the other end and connecting sleeve are fixed.Torsion spring is set needs so certain power could rotate rotating sleeve, thereby prevents the misoperation rotating sleeve, rotate rotating sleeve in addition after, torsion spring has certain restoring force, so rotate in place and after regulating the length of telescopic pipe, rotating sleeve can reset by nature, and telescopic pipe is locked.

Further improve, the bottom of above-mentioned connecting sleeve has one section arc-shaped slot, the rotating sleeve lower inside has the interior card division of snapped in arc-shaped slot of convex, this card division can be along its radian direction slippage in arc-shaped slot, when sliding onto a side of arc-shaped slot in the card division, described positioning bead is just in time corresponding with recess.The cooperation of card division and arc-shaped slot not only can prevent axial displacement relative between rotating sleeve and the connecting sleeve, rotate in place but also play to indicate to rotate not to be with, slide onto a side of arc-shaped slot when the card division, be obstructed in the card division, this moment, telescopic pipe just in time was in the state of telescopic pipe adjustable in length, prevented that effectively rotating sleeve from rotating excessive situation and taking place.

Compared with prior art, advantage of the present utility model is: it is by rotating rotating sleeve, when rotating sleeve turn to positioning bead just in time with connecting sleeve on the recess relevant position, just the relative outer tube of pipe is flexible in can spurring, to regulate the length of telescopic pipe,, do not expose so do not have the stop pin or the button of locking outer tube and interior pipe because it is the regulative mode of rotary type, so do not have wrong operation locking pin or button possibility, this telescopic pipe is also very convenient when carrying out length adjustment.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation;

Fig. 2 is the utility model embodiment's structural representation (after removing outer tube);

Fig. 3 is that the A-A of Fig. 2 is to sectional view;

Fig. 4 is that the B-B of Fig. 2 is to sectional view.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Be depicted as embodiment of the present utility model as Fig. 1～4:

A kind of flexible pipe structure, pipe 1, outer tube 2 in including, outer tube 2 movable sets are outside interior pipe 1 and can move to axial between the two, outer tube 2 links to each other with body of dust collector or type of mop body, link to each other by a locking structure between outer tube 2 and the interior pipe 1, the structure of this outer tube 2 and interior pipe 1 mutual sheathing, and outer tube 2 is routine techniques with the structure that body of dust collector or type of mop body link to each other, and locking structure also has variously, and inventive point of the present utility model just is the difference of locking structure;

Described locking structure includes rotating sleeve 3, positioning bead 4, connecting sleeve 5, is distributed with a plurality of positioning beads 4 that supply at the outer surface upper edge of interior pipe 1 axially spaced-apart and blocks the locating slot of establishing in it 11;

Connecting sleeve 5 movable sets are outside interior pipe 1, and connecting sleeve 5 lower ends link to each other with an end of outer tube 2, and the outer surface of connecting sleeve 5 has one and positioning bead 4 matches and the spacing hole 51 that can wear for positioning bead 4 activities;

Manage outside 1 in rotating sleeve 3 is movably set in, the bottom of rotating sleeve 3 is set in the top of connecting sleeve 5 and links to each other with connecting sleeve 5, and rotating sleeve 3 can internally manage mutually 1 and connecting sleeve 3 rotate, the structure that rotating sleeve 3 links to each other with connecting sleeve 5 is: have one section arc-shaped slot 52 in the bottom of connecting sleeve 5, rotating sleeve 3 lower inside have the card division 31 in the snapped in arc-shaped slot 52 of convex, described card division 31 is fastened in the arc-shaped slot 52, and card division 31 can be along its radian direction slippage in arc-shaped slot 52, the structure that certain rotating sleeve 3 links to each other with connecting sleeve 5 also can adopt buckle structure, as establish the convex tendon of an annular at the connecting sleeve outer surface, at the annular groove that the corresponding position is provided with and convex tendon matches of rotating sleeve internal surface, convex tendon is stuck in the annular groove during assembling;

The inwall of rotating sleeve 3 contacts with positioning bead 4, to have positioning bead 4 is compressed trend in the locating slot 11 all the time, on the inwall of rotating sleeve 3, have one and the arc protuberance 32 that matches of positioning bead, have inner fovea part 321 on the arc protuberance 32, this inner fovea part 32 can be ccontaining in it for positioning bead 4, the degree of depth of inner fovea part 32 is more than or equal to the degree of depth of locating

slot

11, and 31 when sliding onto a side of arc-shaped slot 52 in the card division, and described positioning bead 4 is just in time corresponding with recess 32.

Be provided with the torsion spring 6 that the rotating sleeve after can making rotation resets between rotating sleeve 3 and connecting sleeve 5, an end of torsion spring 6 and rotating sleeve 3 inwalls are fixed, and the other end and connecting sleeve 3 are fixing, and the mode that this torsion spring 6 is provided with is a routine techniques.

Working procedure of the present utility model is as follows:

When regulating the length of telescopic pipe, rotate rotating sleeve 3 earlier, when turn to positioning bead 4 no longer with connecting sleeve 5 on protuberance 32 corresponding positions, and the inner fovea part 321 on positioning bead 4 and the protuberance 32 is corresponding, manage 1 in the pulling again, at this moment, positioning bead pressurized in the locating slot 11 in snapping on the pipe 1 climbs out of locating slot 11 up or down, in positioning bead 4 moves to the locating slot 11 of our needs, loose one's grip again, rotating sleeve 3 rotates under the effect of torsion spring 6 and resets, the inwall protuberance 32 of rotating sleeve 3 is with positioning bead 4 inwardly extruding once more, and the spacing hole 51 that positioning bead 4 parts are passed on the connecting sleeve 5 is conflicted with protuberance 32, and protuberance 32 tightly is pressed in the locating slot 11 positioning bead 4 with the location, telescopic pipe can not be pulled, and the telescopic pipe length adjustment finishes.

Claims

1. a flexible pipe structure includes interior pipe (1), outer tube (2), and outer tube (2) movable set is outside interior pipe (1) and can move to axial between the two, links to each other by a locking structure between outer tube (2) and the interior pipe (1);

It is characterized in that described locking structure includes rotating sleeve (3), positioning bead (4), connecting sleeve (5), be distributed with a plurality of locating slots of establishing in it (11) that block for positioning bead (4) at the outer surface upper edge of interior pipe (1) axially spaced-apart;

Connecting sleeve (5) movable set is outside interior pipe (1), and connecting sleeve (5) lower end links to each other with an end of outer tube (2), and the outer surface of connecting sleeve (5) has one and positioning bead (4) matches and the spacing hole (51) that can supply positioning bead (4) activity to wear;

Rotating sleeve (3) is movably set in outside the interior pipe (1), the bottom of rotating sleeve (3) is set in the top of connecting sleeve (5) and links to each other with connecting sleeve (5), and rotating sleeve (3) can internally be managed mutually and connecting sleeve (5) rotates, on the inwall of rotating sleeve (3), have one and positioning bead (4) the curved protuberance (32) that matches, have inner fovea part (321) on the protuberance (32), under positioning states, positioning bead (4) is local to be squeezed in the locating slot (11) by protuberance (32), and the part passes spacing hole (51) and contacts with protuberance (32).

2. flexible pipe structure according to claim 1, it is characterized in that being provided with between described rotating sleeve (3) and the connecting sleeve (5) torsion spring (6) that the rotating sleeve (3) after the rotation is resetted, one end of torsion spring (6) and rotating sleeve (3) inwall are fixed, and the other end and connecting sleeve (5) are fixing.

3. flexible pipe structure according to claim 1 and 2, it is characterized in that described rotating sleeve (3) with the structure that connecting sleeve (5) links to each other is: have one section arc-shaped slot (52) in the bottom of connecting sleeve (5), rotating sleeve (3) lower inside has the interior card division (31) of snapped in arc-shaped slot (52) of convex, this card division (31) can be along its radian direction slippage in arc-shaped slot (52), when (31) slid onto a side of arc-shaped slot (52) in the card division, described positioning bead (4) was just in time corresponding with recess (321).