CN201056270Y

CN201056270Y - Telescoping tube locking device

Info

Publication number: CN201056270Y
Application number: CNU200720039423XU
Authority: CN
Inventors: 巩洪聘
Original assignee: Giant China Co Ltd
Current assignee: Giant China Co Ltd
Priority date: 2007-06-04
Filing date: 2007-06-04
Publication date: 2008-05-07
Anticipated expiration: 2017-06-04

Abstract

An extensible-pipe locking device comprises an outer pipe, an inner pipe sleeved in the outer pipe in sliding and a locking mechanism; the locking mechanism is composed of a fixing mechanism fixed by welding on the two sides of the bottom of the outer pipe, a linkage penetrating a groove hole on the fixing seat, two wedgy blocks covering the linkage in sliding and held in the groove hole, a handle rotatably fixed on one end of the linkage, and a nut fixed by screwing on the other end of the linkage; a pair of oblique-bottomed inner inclines and a pair of oblique-bottomed outer inclines are respectively arranged on the two sides of the bottoms of the inner pipe and the outer pipe; corresponding to a pair of bottom inner inclines, two upper inclines are respectively arranged at the upper parts of the two wedgy blocks;, the middle part of the groove hole on the fixing seat is communicated with the inner cavity of the outer pipe, the bottom of the groove hole on the fixing seat has two inclines with the middle part convex; two corresponding lower inclines are arranged at the bottoms of the two wedgy blocks, brining convenience to limit the axial sliding of the linkage, and then limits the linked two wedgy blocks to slide relatively to the inner pipe. The utility model provides an extensible-pipe locking device, which can fix any part of an extensible pipe with convenient operation.

Description

The telescopic pipe latching device

Technical field

The utility model belongs to the pipe fitting anchor fitting, particularly a kind of anchor fitting of pipe fitting locking that will stretch.

Background technology

In the prior art, two flexible pipe fittings to be fixed, usually, outer tube is provided with clamping mechanism outward, and the outer mouth of pipe has open slot, like this when interior pipe is through at outer tube, tighten up this clamping mechanism, the open slot of the outer mouth of pipe tightens up, thereby realizes clamping telescopic pipe, and flexible pipe fitting fixing and locking is very important in the folding bicycle production process.Such catch gear outward appearance seems complicated and can only be positioned at the outer mouth of pipe, can not lock the pipe fitting middle part, is unfavorable for the telescopic pipe fixing and locking.

Summary of the invention

In order to remedy above deficiency, the utility model provides a kind of telescopic pipe latching device, can be arbitrarily fixing telescopic pipe position, easy to operate.

The technical solution of the utility model is achieved in that a kind of telescopic pipe latching device, comprise outer tube, slip is through at interior pipe and the catch gear in this outer tube, this catch gear is fixed in the permanent seat of this outer tube two bottom sides by two ends, be through at the connecting rod of slotted eye on this permanent seat, slip is placed in this connecting rod and is placed in two interior wedges of this slotted eye, rotational fixation is in the handle of this connecting rod one end and be rotated with in the nut of this connecting rod other end and form, the slotted eye middle part connects with this outer tube bore on this permanent seat, should in pipe and outer tube two bottom sides axially respectively correspondence be provided with inclined-plane outside the bottom on inclined-plane and pair of angled in the bottom of pair of angled, to inclined-plane in should a pair of bottom, this two wedges top is respectively equipped with two ramps.

As further improvement of the utility model, these permanent seat slotted eye two ends are welded in this outer tube two bottom sides, should go up inclined-plane in a pair of bottom by interior pipe relatively, the opening recess that this slotted eye middle part has inclined surface and connects with this outer tube bore also is convenient to this two wedge and is slided and be squeezed in this pipe and go up on the inclined-plane, a pair of bottom.

As further improvement of the utility model, this connecting rod position between this two wedge wears compression spring, is convenient to this catch gear of conveniently assemble and disassemble.

As further improvement of the utility model, the slotted eye bottom surface has two inclined-planes of middle part projection on this permanent seat, and this two wedges bottom has cooresponding two lower inclined planes respectively, is convenient to place restrictions on this connecting rod endwisely slip, and should slide by interior pipe relatively thereby also limit this related two shapes piece.

As further improvement of the utility model, in this pipe and both sides, outer tube top axially respectively correspondence be provided with inclined-plane outside the top on inclined-plane and pair of angled in the top of pair of angled.

As further improvement of the utility model, be respectively equipped with two plastic cement pads in this a pair of top outside inclined-plane and a pair of top between the inclined-plane, it is fixing to be convenient to the extruding of this outer tube and interior pipe.

As further improvement of the utility model, this handle end fastens in this interlinking lever end by the activity of bolt head, this connecting rod wears fixed plate between this handle and this outer tube, this handle end has protuberance, when being convenient to swing handle, after protuberance by this handle end pushes this fixed plate, drive this two shapes piece extruding should in pipe, from realizing the locking between outer tube and interior pipe.

As further improvement of the utility model, this outer tube bottom can be provided with a plurality of side by side the locking outer tube and this catch gear of interior pipe.

Useful technique effect of the present utility model is: these permanent seat two ends are welded in this outer tube two bottom sides, by screwing nut, and move handle, two wedges that are through on this connecting rod will push pipe in this, since should in the corresponding setting of two ramps on inclined-plane and this two wedge in a pair of bottom that is provided with of pipe, pipe in thereby upwards extruding is somebody's turn to do by the bottom is realized the locking between telescopic pipe;

Should in pipe and outer tube top be respectively equipped with that outside the inclined-plane and a pair of top the inclined-plane in a pair of top, like this when this two wedge when the centre is pushed, driving outer tube and interior pipe push to the centre, have realized telescopic pipe locking thus;

Two inclined-planes of projection in the middle part of the slotted eye bottom surface has on this permanent seat, and this two wedges bottom has cooresponding two lower inclined planes respectively, is convenient to place restrictions on this connecting rod like this endwisely slip, thus also limit the slip that this related two wedge is somebody's turn to do interior pipe relatively.

Description of drawings

Fig. 1 is a structure assembly drowing of the present utility model;

Fig. 2 is a section structure scheme drawing of the present utility model.

Below make supplemental instruction:

1---outer tube 331,332---wedge

11,12---inclined-

plane

3311,3321 outside the bottom---ramp

13,14---inclined-plane 34 outside the top---handle

2---interior pipe 341---protuberance

21,22---inclined-plane 35 in the bottom---nut

23,24---inclined-plane 311,312 in the top---inclined-plane

31---permanent seat 6---plastic cement pad

311---slotted eye 7---bolt head

32---connecting rod 8---fixed plate

The specific embodiment

Be further described below in conjunction with Fig. 1 and Fig. 2:

A kind of telescopic pipe latching device, comprise outer tube 1, slip is through at interior pipe 2 and the catch gear in this outer tube, this catch gear is welded in the permanent seat 31 of this outer tube 1 two bottom sides by two ends, be through at the connecting rod 32 of slotted eye 311 on this permanent seat, slip is placed in this connecting rod and is placed in interior two

wedges

331 and 332 of this slotted eye, rotational fixation is in the handle 34 of this connecting rod one end and be rotated with in the nut 35 of this connecting rod other end and form, should in the axially corresponding respectively bottom that is provided with pair of angled of pipe 2 and outer tube 1 two bottom sides inclined-

plane

21 and 22 and the bottom of pair of angled outside inclined-

plane

11 and 12, should in the axially corresponding respectively top that is provided with pair of angled in pipe 2 and both sides, outer tube 1 top inclined-

plane

23 and 24 and the top of pair of angled outside inclined-

plane

13 and 14, in this a pair of top inclined-

plane

23 and 24 and a pair of top outside be respectively equipped with two plastic cement pads 6 between the inclined-

plane

13 and 14, it is fixing to be convenient to the extruding of this outer tube and interior pipe, to inclined-

plane

21 and 22 in should a pair of bottom, this two

wedge

331 and 332 tops are respectively equipped with two

ramps

3311 and 3321, slotted eye 311 middle parts and this outer tube 1 inner chamber connect on this permanent seat 31, be convenient to when this two

wedge

331 and 332 when the centre is pushed, can stretch into pipe in the extruding of this outer tube bore.

In a pair of bottom inclined-

plane

21 and 22 on the pipe 2 in being somebody's turn to do relatively, the opening recess that these slotted eye 311 middle parts have inclined surface and connect with this outer tube bore, also being convenient to this two

wedge

331 and 332 slides and to be squeezed in this on pipe 2 on the inclined-plane, a pair of

bottom

21 and 22, these connecting rod 32 positions between this two

wedge

331 and 332 wear compression spring 36, are convenient to this catch gear of conveniently assemble and disassemble.

Two inclined-

planes

311 and 312 of projection in the middle part of slotted eye 311 bottom surfaces have on this permanent seat 31, and this two wedges bottom has cooresponding two lower inclined planes respectively, is convenient to place restrictions on this connecting rod endwisely slip, and should slide by interior pipe relatively thereby also limit this related two shapes piece.

These handle 34 ends fasten in this interlinking lever end by 7 activities of bolt head, this connecting rod wears fixed plate 8 between this handle and this outer tube, this handle end has protuberance 341, when being convenient to swing handle, behind protuberance 341 these fixed plates of extruding by this handle end, driving this two shapes piece extruding should interiorly manage, from realizing the locking between outer tube and interior pipe.

In order better telescopic pipe to be locked, this outer tube bottom can be provided with a plurality of such catch gears side by side.

Claims

1. telescopic pipe latching device, comprise outer tube (1), slip is through at interior pipe (2) and the catch gear in this outer tube, it is characterized in that, this catch gear is fixed in the permanent seat (31) of this outer tube two bottom sides by two ends, be through at the connecting rod (32) of slotted eye on this permanent seat (311), slip is placed in this connecting rod and is placed in two interior wedges (331 of this slotted eye, 332), rotational fixation is in the handle (34) of this connecting rod one end and be rotated with in the nut (35) of this connecting rod other end and form, this permanent seat (31) is gone up slotted eye (311) middle part and is connected with this outer tube (1) inner chamber, should in pipe (2) and outer tube (1) two bottom sides axially respectively correspondence be provided with inclined-plane (21 in the bottom of pair of angled, 22) and outside the bottom of pair of angled inclined-plane (11,12), to inclined-plane (21 in should a pair of bottom, 22), this two wedge (331,332) top is respectively equipped with two ramps (3311,3321).

2. a kind of telescopic pipe latching device as claimed in claim 1, it is characterized in that, this permanent seat (31) is gone up slotted eye (311) two ends and is welded in this outer tube (1) two bottom sides, should go up inclined-plane (21,22) in a pair of bottom by interior pipe (2) relatively, the opening recess that this slotted eye (311) middle part has inclined surface and connects with this outer tube bore.

3. a kind of telescopic pipe latching device as claimed in claim 1 is characterized in that, this connecting rod (32) position between this two wedge (331,332) wears compression spring (36).

4. a kind of telescopic pipe latching device as claimed in claim 1 is characterized in that, this permanent seat (31) is gone up two inclined-planes (311,312) that slotted eye (311) bottom surface has the middle part projection, and this two wedges bottom has cooresponding two lower inclined planes respectively.

5. a kind of telescopic pipe latching device as claimed in claim 1 is characterized in that, in this pipe (2) and outer tube (1) both sides, top axially respectively correspondence be provided with inclined-plane (13,14) outside the top on inclined-plane (23,24) and pair of angled in the top of pair of angled.

6. a kind of telescopic pipe latching device as claimed in claim 5 is characterized in that, is respectively equipped with between inclined-plane (13,14) outside inclined-plane in this a pair of top (23,24) and a pair of top to be convenient to this outer tube and two fixing plastic cement pads (6) of interior pipe extruding.

7. a kind of telescopic pipe latching device as claimed in claim 1, it is characterized in that, this handle (34) end fastens in this interlinking lever end by bolt head (7) activity, and this connecting rod wears fixed plate (8) between this handle and this outer tube, and this handle end has protuberance (341).

8. a kind of telescopic pipe latching device as claimed in claim 1 is characterized in that, this outer tube (1) bottom be provided with a plurality of side by side the locking outer tube and this catch gear of interior pipe.