CN2517898Y

CN2517898Y - Take-up of extonsion pipe

Info

Publication number: CN2517898Y
Application number: CN 01280169
Authority: CN
Inventors: 冷鹭浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-29
Filing date: 2001-12-29
Publication date: 2002-10-23
Anticipated expiration: 2011-12-29

Abstract

The utility model discloses an elastic device of a telescopic tube, and the elastic device comprises an outer tube, an inner tube, a circlip body, and a pressing piece of an elastic device. The circlip body is arranged in the inner pipe, the elastic device pressing piece is suited outside the inner tube, the pressing piece of the elastic device mainly comprises a button, a block and a main body, wherein, the button is provided with a concave surface matched with the finger, one end of the button is connected with the main body as a whole through a thin element, a heave is arranged at the other end of the button, one end of the block is connected with the main body as a whole, a flange is arranged at the other end of the block, and the heave of the pressing piece is clipped under the flange of the block. When the fixing hole of the outer tube of the telescopic tube slides to the position consistent to the position of the clipping hole of the inner tube, the circlip body can bounce out automatically, can be clipped in the fixing hole, and can jack up the button of the pressing piece of the elastic device, to realize the locking. When the telescopic tube is withdrawn, the ball head of the circlip body is pressed with the button of the pressing piece of the elastic device to withdraw, and the inner tube can slide and can be withdrawn. The utility model has the advantages that when being operated, the device is light and convenient, the labor is not wasted, and the applicable range of the telescopic tube can be increased.

Description

A kind of tightener of telescopic pipe

Technical field

The utility model relates to a kind of telescopic pipe, especially with telescopic pipe to press the part structure relevant.

Background technique

It is commonplace that telescopic pipe uses in daily life, for example the strut of folded umbrella, bearch umbrella, drying rack etc. all needs to use it, and existing telescopic pipe mainly is made of inner and outer pipe and jump ring body, open when regaining behind the telescopic pipe, need hand to push the bulb of jump ring body, outer tube is reclaimed, when if telescopic pipe need support bigger weight, the elastic force of jump ring body just increases relatively, at this moment be exactly the incident of quite requiring great effort at the bulb of pushing the jump ring body with hand, so reason has also limited the use of telescopic pipe in others.

The model utility content

The utility model needs directly push jump ring body bulb with hand when using at existing telescopic pipe, and uses difficult existing problem, and a kind of tightener of a kind of telescopic pipe simple in structure, easy to use is provided.

The tightener of a kind of telescopic pipe of the utility model comprises outer tube, interior pipe, jump ring body and tightener by part, and the jump ring body places in the interior pipe, the hole clipping of pipe in the bulb of jump ring body is positioned, outside the pipe, an end of outer tube was provided with one group of fixed hole, and connects with interior pipe box in tightener was enclosed within by part.

Described tightener is pressed part mainly by button, block and main body constitute, be made as shoulder hole in the main body, the small end in hole is littler than the internal diameter of outer tube, the big end in hole is bigger than the external diameter of outer tube, one side of its main body is provided with button hole, button is provided with the concave surface that matches with finger, one end of button is connected as a single entity by the lower limb of a thin body and main body button hole, the other end is provided with projection, one end and the main body of block are connected as a single entity, and the other end is a flange, are stuck under the flange of block by the projection of part, the shape in cross section of shoulder hole that tightener is pressed the part main body is consistent with the shape of telescopic pipe, and the shape of telescopic pipe can be circle, square or regular polygon.

After adopting said structure, because an end of button is connected as a single entity by the lower limb of a thin body and main body button hole, therefore button has certain elasticity and toughness, when the fixed hole of the outer tube of telescopic pipe slides into hole clipping position consistency with interior pipe, the jump ring body will eject automatically, be stuck in the fixed hole of outer tube, and the jack-up tightener is pressed the button of part, the realization locking.When telescopic pipe reclaims, make its recovery with tightener by the bulb that the button of part presses the jump ring body, interior pipe just can slide and reclaim.

The utility model is to act directly on the bulb of jump ring body with the button of tightener by part, and does not need directly to contact with hand, and is easy and convenient when therefore using, leicht fallen D/A, and also it is simple in structure, can increase the Applicable scope of telescopic pipe.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is a prior art flexible pipe structure cut-away view;

Fig. 2 is the utility model example structure cut-away view;

Fig. 3 is the partial cutaway diagrammatic sketch that the utility model embodiment is used in folding table.

Embodiment

Embodiment one, as shown in Figure 2, the tightener of a kind of telescopic pipe of the utility model, comprise that outer tube 1, interior pipe 2, jump ring body 3 and tightener are by part 4, in the pipe 2, manage 2 hole clipping in the bulb 31 of jump ring body 3 is positioned in jump ring body 3 places, tightener is enclosed within outside the interior pipe 2 by part 4, one end of outer tube 1 is provided with one group of fixed hole, and with interior pipe 2 sockets.

Described tightener mainly is made of button 41, block 42 and main body 43 by part 4, be made as shoulder hole in the main body 43, the small end in hole is littler than the internal diameter of outer tube 1, the big end in hole is bigger than the external diameter of outer tube 1, one side of its main body 43 is provided with button hole 431, button 41 is provided with the concave surface 411 that matches with finger, one end of button 41 is connected as a single entity by the lower limb of a thin body 412 with main body button hole 431, the other end is provided with projection 413, one end and the main body of block 42 are connected as a single entity, the other end is a flange 421, is stuck in the flange 421 times of block 42 by the projection 413 of part 41.The small end 44 that tightener is pressed part 4 is littler than the internal diameter of outer tube 1, is slidingly matched with interior pipe 2, make the inner and outer pipes of telescopic pipe be difficult for sliding injury when sliding, and guidance quality is better.

Embodiment two, the utility model embodiment is used for folding table, as shown in Figure 3, outer tube 1 links to each other with table 5 and constitutes rotary hinge, and interior pipe 2 links to each other with table leg 6 and constitutes rotary hinge, thereby forms a connecting rod, realize opening and folding of table leg, it is reliable and stable that such mode makes table leg open the back, and the table leg distal-most end can be born 40 pounds power and can not be damaged, and easy and convenient leicht fallen D/A when using.

Claims

1. the tightener of a telescopic pipe, comprise outer tube, interior pipe and jump ring body, the jump ring body places in the interior pipe, the hole clipping of pipe in the bulb of jump ring body is positioned, one end of outer tube is provided with one group of fixed hole, and connect with interior pipe box, it is characterized in that: comprise that also tightener is by part, tightener is pressed part mainly by button, block and main body constitute, be made as shoulder hole in the main body, a side of its main body is provided with button hole, and button is provided with the concave surface that matches with finger, one end of button is connected as a single entity by the lower limb of a thin body and main body button hole, the other end is provided with projection, and an end and the main body of block are connected as a single entity, and the other end is a flange, projection by part is stuck under the flange of block, and tightener is enclosed within outside the interior pipe by part.

2. the tightener of a kind of telescopic pipe according to claim 1 is characterized in that: the shape in cross section that described tightener is pressed part main body shoulder hole is consistent with the shape of telescopic pipe.

3. the tightener of a kind of telescopic pipe according to claim 1 and 2, it is characterized in that: the small end of described shoulder hole is littler than the internal diameter of outer tube, and the big end in hole is bigger than the external diameter of outer tube, is slidingly matched with interior pipe.