CN2362428Y

CN2362428Y - Telescopic pipe for suction cleaner

Info

Publication number: CN2362428Y
Application number: CN 98223602
Authority: CN
Inventors: 沈盘根
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-30
Filing date: 1998-03-30
Publication date: 2000-02-09
Anticipated expiration: 2008-03-30

Abstract

The utility model relates to a telescopic dust suction tube for a dust suction cleaner, which comprises an inner tube (1) and an outer tube (3), wherein, the inner tube (1) is inserted into an inner cavity of the outer tube (3). The end of the outer tube (3) is connected with a lining ring (9), and a locking mechanism is arranged on the lining ring (9). The utility model is characterized in that the locking mechanism is provided with a penetrable rolling post hole (10) for arranging a rolling post on the lining ring (9), and a push key (6) is connected with the lining ring (9) in a slide mode. The front end of the push key (6) is provided with a bevel which is pressed on the rolling post (4), and a spring (8) is arranged between the back end of the push key (6) and the lining ring (9). The utility model can cause a tube to be conveniently telescopic.

Description

The expansion sweep-up pipe of dust catcher

The utility model relates to the sweep-up pipe that uses on a kind of dust catcher.

In the prior art, the sweep-up pipe of dust catcher adopts corrugated flexible hose to draw from dust catcher, connects by many hard tubes to patch the pipeline that forms again, and its place of patching is a tapered plugging, so very easily come off when using, its connection procedure is also than bothering.

The purpose of this utility model provide a kind of can be by any expansion sweep-up pipe of flexible dust catcher of user.

The technical solution of the utility model is: pipe and outer tube in the expansion sweep-up pipe of dust catcher comprises, pipe is inserted in the inner chamber of outer tube in described, the outer wall of pipe is provided with a plurality of detents separately in described, the end of described outer tube is connected with cover lining ring on inner pipe, and described lining ring is provided with the locking mechanism that matches with described detent; Also be provided with axial gathering sill on the described outer wall of inner tube, the guiding projection on the described lining ring is inserted in the described gathering sill; Described locking mechanism is to have the roller hole that penetrates on described lining ring, being placed with roller and this roller in this roller hole contacts with the outer wall of interior pipe, slidely connect push button on the described lining ring, the front end of this push button is provided with the inclined-plane that is pressed on the roller, is provided with the spring of trend before making push button oriented between the rear end of push button and the lining ring.

The utility model compared with prior art has following advantage:

In the time of in roller is stuck in detent, interior pipe locks with respect to outer tube, when roller leaves detent, can slide relatively between interior pipe and the outer tube, make that whole pipe is elongated or shortened, thereby realize the flexible of whole pipe, the user can regulate as required voluntarily, when not using, interior pipe is inserted in the outer tube, and length reduces greatly.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing is a structural front view of the present utility model; Wherein:

[1]. interior pipe; [2]. detent; [3]. outer tube; [4]. roller; [5]. the inclined-plane; [6]. push button; [7]. interior push button; [8]. spring; [9]. lining ring; [10]. roller hole; [11]. gathering sill; [12]. guiding projection;

Embodiment: referring to accompanying drawing, the utility model comprises interior pipe [1] and outer tube [3], pipe [1] is inserted in the inner chamber of outer tube [3] in described, the outer wall of pipe [1] is provided with a plurality of detents [2] separately in described, the end of described outer tube [3] is connected with the lining ring [9] that is enclosed within on the interior pipe [1], and described lining ring [9] is provided with the locking mechanism that matches with described detent [2]; Also be provided with axial gathering sill [11] on pipe [1] outer wall in described, the guiding projection [12] on the described lining ring [9] is inserted in the described gathering sill [11]; Described locking mechanism is to have the roller hole [10] that penetrates on described lining ring [9], being placed with roller [4] and this roller [4] in this roller hole [10] contacts with the outer wall of interior pipe [1], (push button [6] is connected to one with interior push button [7] to slidely connect push button [6] on the described lining ring [9], can be considered same parts), the front end of this push button [6] is provided with the inclined-plane [5] that is pressed on the roller [4], is provided with the spring [8] of trend before making push button [6] oriented between the rear end of push button [6] and the lining ring [9].Described push button [6] is arranged in the chute on the described lining ring [9], and described push button [6] is slidingly connected with chute.When pressing push button [6] after with hand, the elastic force that push button [6] overcomes spring [8] slides backward along the chute on the lining ring [9], the inclined-plane of push button [6] front also moves backward, the space of moving on the roller [4] has been reserved in the top of roller [4], make the roller [4] that was positioned at the detent [2] on the pipe originally when [1] and outer tube [3] are managed in pulling relatively, to break away from detent [2], finish the relative slip between the inner and outer pipes; When unclamping push button [6], roller [4] enters this detent [2] under the promotion of inclined-plane [5] when running into first detent [2], cover roller [4] with back bevel [5], finishes the relative positioning locking between the inner and outer pipes.

Claims

1. the expansion sweep-up pipe of a dust catcher, comprise interior pipe [1] and outer tube [3], pipe [1] is inserted in the inner chamber of outer tube [3] in described, the outer wall of pipe [1] is provided with a plurality of detents [2] separately in described, the end of described outer tube [3] is connected with the lining ring [9] that is enclosed within on the interior pipe [1], and described lining ring [9] is provided with the locking mechanism that matches with described detent [2]; Also be provided with axial gathering sill [11] on pipe [1] outer wall in described, the guiding projection [12] on the described lining ring [9] is inserted in the described gathering sill [11]; It is characterized in that: described locking mechanism is to have the roller hole [10] that penetrates on described lining ring [9], being placed with roller [4] and this roller [4] in this roller hole [10] contacts with the outer wall of interior pipe [1], slidely connect push button [6] on the described lining ring [9], the front end of this push button [6] is provided with the inclined-plane [5] that is pressed on the roller [4], is provided with the spring [8] of trend before making push button [6] oriented between the rear end of push button [6] and the lining ring [9].

2. the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: described push button [6] is arranged in the chute on the described lining ring [9], and described push button [6] is slidingly connected with chute.