CN2776123Y

CN2776123Y - Self ejection type chest pull rod

Info

Publication number: CN2776123Y
Application number: CN 200420058064
Authority: CN
Inventors: 何长谋
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-27
Filing date: 2004-12-27
Publication date: 2006-05-03
Anticipated expiration: 2014-12-27

Abstract

The utility model relates to a self ejection type case pull rod, which comprises an inner tube which is sheathed on the middle lower end part of an outer tube of the pull rod and is provided with a stopper, and a pull rod handle which is fixed on the upper end part of the inner tube, wherein the center of the pull rod handle is provided with a pressing system. The utility model is characterized in that a spring is arranged between the bottom of the outer tube and the lower end part of the adjacent inner tube, a transverse bolt of the stopper of the inner tube is folded by the pull rod and is sprung into a positioning hole which is arranged on the lower part of the outer tube to be positioned, and the spring is compressed between the outer tube and the lower end part of the adjacent inner tube. When the pressing system on the handle is pressed downward, the transverse bolt is retracted and disengaged from the limitation of the positioning hole, the inner tube is sprung out under the function of the spring force, the handle can be sprung out of a case, and the utility model is convenient for the hand gripping operation.

Description

The eject case drawbar

Technical field:

The utility model belongs to the small stores field, particularly a kind of case drawbar of stretching that has from ejection function.

Background technology:

The luggage case and bag of band pull bar can be found everywhere on the market, and it is comparatively convenient to use after all, and pull bar can be done suitable adjustment with the height or the user mode of human body, effectively reduce the burden of carrying than overline Lee.Existing pull bar majority is two to three joint structures, except that shrinking back, be pulled to the longest two anchor points, generally also is provided with one or two anchor point.The location is to be cooperated with outer tube and middle interior pipe (referring to three joint structures) locating hole by the horizontal bolt of stopper that is fixed in pull bar inner tube portion to form, the retraction of the horizontal bolt of stopper is by being located at controlling by system of pull bar handgrip central authorities, press down by system and force horizontal bolt retraction, the restriction that breaks away from locating hole, interior pipe and middle interior pipe can freely be pulled out in outer tube or bounce back; Remove the external force by system, the horizontal bolt of stopper is in the trend of outside ejection all the time under action of reset spring, in case can eject pinning voluntarily when walking to locating hole.The pull bar handgrip often is not located in the case and bag edge handle bracket, and outward appearance is not rude, need pin by system with thumb when pulling out, and all the other fingers are also wanted simultaneously outer pull bar handgrip, cooperates synchronously and finishes, and operation has inconvenience more.

Summary of the invention:

The purpose of this utility model is that a kind of need of design press down the case drawbar that can eject voluntarily by the system pull bar.

Technical solutions of the utility model are achieved in that the eject case drawbar, comprise be sheathed on bottom in the pull bar outer tube be fixed with stopper interior pipe, be fixed in pipe upper end central authorities have pull bar hand rake by system, it is characterized in that the outer tube bottom with adjacent in manage between the bottom and be provided with a spring.The horizontal bolt of pipe plug sprang in the locating hole of outer tube bottom and locatees in the pull bar folding rose, and spring is compressed between outer tube and adjacent interior pipe bottom; In case press down on the handgrip by system, horizontal bolt retraction breaks away from the restriction of locating hole, interior pipe ejects under the effect of spring force, and handgrip is ejected outside the case and bag, is convenient to hand-held operation.

In addition, the spring bottom is fixed with a pedestal, and the upper end is fixed with a slide block, and the cross section of pedestal and slide block is slightly less than the interior section of outer tube.Slide block can guarantee that the elasticity cutter is identical with the interior pipe direction of motion, does not depart from and do not produce.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 eject case drawbar contraction state profile

Fig. 2 eject case drawbar ejects state profile

Fig. 3 three joint pull bar contraction state profiles

Fig. 4 three joint pull bars eject state profile

Fig. 5 spring structure schematic diagram

Wherein

Interior pipe 4-connector in the middle of the pipe 3-in the 1-outer tube 11-locating hole 2-

5-handgrip 6-is by system 61-connecting rod 7-stopper 71-contact

The horizontal bolt 8-of 72-spring 81-pedestal 82-slide block 83-projection

The specific embodiment:

See figures.1.and.2, eject case drawbar profile, pull bar is two joint structures among the figure, pull bar outer tube 1 bottom is case and bag connector 4 fixedly, interior pipe 2 is sheathed among the outer tube 1, interior pipe 2 upper ends are fixed with handgrip 5, handgrip 5 central authorities convex with by system 6, have a connecting rod 61, connecting rod 61 to penetrate in the interior pipe 2 by system 6 interlocks, but its end touch-control and be fixed in stopper 7 contacts 71 of pipe on 2 bottoms, the contact 71 of stopper 7 presses down and can make horizontal bolt 72 retractions, and the locked state of releasing and outer tube 1 locating hole 11 is provided with two locating holes 11 at least on the outer tube 1, one in the outer tube lower end, pin the interior pipe 2 of retraction, as Fig. 1 state, another is in the upper end, the interior pipe 2 that pinning is pulled out wherein is provided with a spring 8 between outer tube 1 bottom and interior pipe 2 bottoms.Because pull bar is two joint structures, thus in outer tube 1 adjacent pipe just in pipe 2 own.Spring 8 bottoms are fixed with a pedestal 81, and the upper end is fixed with a slide block 82, and the cross section of pedestal 81 and slide block 82 is slightly less than the interior section of outer tube 1, are convenient to assembling and slide block 82 and slide more smooth and easy in outer tube up and down.In addition, pedestal 81 is provided with rivet hole 83, and pedestal 81 is fixed on the outer tube 1 by rivet, has better assembling flexibility.

With reference to Fig. 3 and Fig. 4, be three joint pull bar profiles, pipe 3 in the middle of the adjacent interior pipe of its middle external tube 1 refers to, three joint pull bars are identical with two joint pull bar basic structures, the bottom of pipe 3 and interior pipe 2 all is equipped with stopper 7 in middle, in pipe 2 stopper by by system 6 controls, and the stopper of pipe 3 is bottom touch-controls by interior pipe 2 in middle.Behind three joint pull bars retractions, in the middle of the stopper 7 horizontal bolts 72 in being installed on the pipe 2 can eject and pass in overlapping locating hole 11 on pipe 3 and the outer tube 1, three pipes are locked together in together, in the middle of this moment in the bottom of pipe 3 and the spring 8 between outer tube 1 bottom be compressed; During use, press down by system and touch horizontal bolt 72 retractions of stopper, spring 8 power are upspring pipe 3 centre in, middle in the pipe 3 interior pipes 2 that will be set in simultaneously wherein take out of, manage 5 whiles of handgrip on 2 in being fixed on by jack-up, conveniently hold and exert oneself.

With reference to Fig. 5, be built in outer tube 1 bottom and adjacent in spring schematic diagram between pipe, be respectively equipped with a fixing projection 83 on pedestal 81 and the slide block 82, spring 8 two ends plug and wherein form stationary state, offer convenience to assembling.

Above-mentioned is example with two joints and three joint Tiebar structures, describes the utility model architectural feature, and its protection domain should contain the above Tiebar structure of two joints that lid has this architectural feature, and should comprise two bars and single draw bar structure.

Claims

1, eject case drawbar, comprise be sheathed on bottom in the pull bar outer tube be fixed with stopper interior pipe, be fixed in pipe upper end central authorities have pull bar hand rake by system, it is characterized in that the outer tube bottom with adjacent in manage between the bottom and be provided with a spring.

2, eject case drawbar according to claim 1 is characterized in that the spring bottom is fixed with a pedestal, and the upper end is fixed with a slide block, and the cross section of pedestal and slide block is slightly less than the interior section of outer tube.

3, eject case drawbar according to claim 2 is characterized in that pedestal is provided with rivet hole, and pedestal is fixed on the outer tube by rivet.