CN204218172U - There is the four-wheel pulling-rod trunk preventing slide mechanism - Google Patents

Abstract

What the utility model provided has the four-wheel pulling-rod trunk preventing slide mechanism, brake component is arranged on draw-in bar [2] lower end through axial elastic component, draw-in bar there is alignment pin [11], [5] have locating hole with outside link, have and promote alignment pin spring from inside to outside [9], alignment pin is also connected with return unit [10], return unit connects control wire [1], provides the power contracted inwards when control wire pulls to return unit; Described outside link has three locating holes [a, b, c] according to axially-aligned, when alignment pin coordinates with three locating holes from top to bottom successively draw-in bar be in respectively upwards pull out, lower end terminates in outside link lower end and terminates in below roller landing ground three place with upper and lower end.Compared with prior art, the utility model brake component is directly installed on draw-in bar of the prior art, and brake line and brake switch and flexible control wire of the prior art and flexible master cock are same, so structure and operation are very simple.

Description

There is the four-wheel pulling-rod trunk preventing slide mechanism

Technical field

The utility model relates to a kind ofly has the four-wheel pulling-rod trunk preventing slide mechanism.

Background technology

Luggage case is that people go on a journey conventional article, and carry with for convenience, luggage case has had the style of various provided with wheels, and wherein having a is four-wheel pulling-rod trunk.Four-wheel pulling-rod trunk, has four universal wheels, and is provided with the pull bar that can stretch, and facilitates four-wheel to slide or oblique pull two-wheeled slides simultaneously.Four-wheel pulling-rod trunk is more laborsaving than two-wheeled pulling-rod trunk, but there is a problem, namely when user lets go, luggage case must be crossed and put.This is because four-wheel pulling-rod trunk universal wheel when four-wheel lands may roll to either direction, when ground inclination or jolt on journey and luggage case will be caused to slide cannot fix.

In order to make four-wheel draw-bar box still can be fixed on a place when four-wheel lands and do not control by people, people have installed the mechanism of anti-sliding stop additional for four-wheel pulling-rod trunk, thus propose the four-wheel pulling-rod trunk preventing slide mechanism.

Chinese utility model patent ZL201320280534 " luggage case of anti-slip stable " " disclose a kind of luggage case of anti-slip stable; comprise casing, the brake arm be fixed on caster for trunk support, the cable hanger being connected to described brake arm one end, the braking wires that is connected with described cable hanger by clamping stopper bearing; and the brake switch be connected with described braking wires one end; the other end of described brake arm is provided with friction immobilisation portion, and described brake bearing is fixed on trundle bracket.”

Chinese utility model patent ZL200520101921 " a kind of luggage case of strap brake mechanism " is had again " to disclose a kind of luggage case of strap brake mechanism, comprise casing, castor is had in the bottom of described casing, casing there is the telescopic handle of traction luggage case, it is characterized in that: be fixed with brake lever A and brake lever B in the bottom of described casing, described brake lever A and brake lever B is equipped with brake rubber block respectively near one end of castor, described brake rubber block is positioned at the both ends of castor, brake lever A and brake lever B passes through hinge, the other end of brake lever B is fixedly connected with brake cable, described brake cable is fixedly connected on the brake handle on telescopic handle through the hole on the other end of brake lever A, described brake cable there is return spring.”

Disclosed in above-mentioned two patents have the four-wheel pulling-rod trunk preventing slide mechanism, all have employed the design that pair roller carries out braking, need to set up a series of mechanism of braking wires (brake cable), brake component travel(l)ing rest, control for brake switch (brake handle) etc., cause structure and complicated operation.

Utility model content

For above-mentioned deficiency, the utility model be exactly the parts such as a kind of not ad hoc brake cable will be provided have the four-wheel pulling-rod trunk preventing slide mechanism.

What the utility model provided has the four-wheel pulling-rod trunk preventing slide mechanism, has casing, casing is provided with four rolling, pull bar and brake component; Pull bar is made up of draw-in bar and outside link, and outside link is fixed on casing, and draw-in bar is enclosed within outside link with matched in clearance; Have positioner between outer tie rod, draw-in bar upper end is fixed with handle, and handle is provided with button, and button is through control wire connection locator; Be through in described outside link, described brake component is arranged on draw-in bar lower end through axial elastic component, and the axis projection of axial elasticity part and brake component is no more than draw-in bar cross section; The locating hole that described positioner is mounted in the alignment pin on draw-in bar and is opened on outside link, alignment pin and locating hole are perpendicular to pull bar axis, alignment pin is connected with elastic force points to outside link spring from draw-in bar, alignment pin is also connected with return unit, described control wire is connected on return unit, provides the power overcoming described spring force when control wire pulls to return unit; Described outside link has three locating holes according to axially-aligned, when alignment pin coordinates with three locating holes from top to bottom successively draw-in bar be in respectively upwards pull out, lower end brake component terminates in outside link lower end and terminates in below roller landing ground three positions with upper and lower end brake component.

What the utility model provided has the four-wheel pulling-rod trunk preventing slide mechanism, brake component is arranged on draw-in bar lower end and increases a position location, makes one of them position location be that draw-in bar makes brake component downwards below roller landing ground.Owing to being connected with axial elasticity part between braking surface with draw-in bar, so when handle makes to be located to compressing this elasticity when pressing down, and user abandon shaking hands after elastic component release make brake component top on the ground.Now casing side may be lifted away from ground by brake component, is at least produce certain pressure between brake component and ground, thus roller rolls.Compared with prior art, the utility model brake component is directly installed on draw-in bar of the prior art, and brake line and brake switch and flexible control wire of the prior art and flexible master cock are same, so structure and operation are very simple.

In described positioner, the alignment pin on draw-in bar has two, and two alignment pins are installed on the same axis; Be opened on the same axial location of locating hole on outside link and also have two, two location are also offered on the same axis; There is wedge alignment pin inner end, and there is parallel inclined-plane wedge the upper side and lower side, and the inclined-plane of two alignment pins is symmetrical, opens down on being all; Described return unit is a wedge, and wedge is " work " word structure, respectively has the inclined-plane of a pair symmetry up and down, and parallel with the upper lower inclined plane of alignment pin wedge respectively; Return unit upper end connects control wire, installs an extension spring between lower end and draw-in bar bottom plate.

The wedge of said structure return unit and alignment pin inner end forms alignment pin control structure, when control wire pull-up, on the downside of return unit, on the downside of inclined-plane and alignment pin, inclined-plane extrudes the pulling force overcoming extension spring and is drawn over to one's side by two alignment pins, from emaciated face from positioning states, when control wire loosens, return unit pulls down by extension spring, and return unit bezel facet and alignment pin bezel facet extrude alignment pin to extrapolation.When alignment pin and locating hole are coaxial, alignment pin outwards moves and locates.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model one embodiment, in figure: 1-control wire, 2-draw-in bar, 3-casing, 4-performs, 5-outside link, 6-lower gear, 7-elastomer block, 8-end cap, 9-extension spring, 10-return unit, 11-alignment pin, promotion part under 101-, 102-connecting rod, the upper promotion part of 103-, a-locating hole one, b-locating hole two, c-locating hole three.

Detailed description of the invention

As shown in Figure 1.One luggage case, has casing 3, has the support comprising perform 4 and lower gear 6 in the envelope of box back surface, and upper lower gear secures two vertical outside links 5, and outside link upper and lower side does not all seal, and is namely through.Outside link internal clearance ground cover has a draw-in bar 2, and outer tie rod is all square tube, and outside link is longer than by draw-in bar, and there is end cap draw-in bar lower end.Two draw-in bars are connected by (not shown) of shaking hands in upper end, and handle is provided with a button.

Two tube walls be parallel to each other of draw-in bar position on the lower side have dowel hole, and two alignment pins 11 outwards pass from inner respectively with gap with dowel hole, and alignment pin inner end is a wedge.The Dou Shi inclined-plane, two sides up and down of said wedge, the inclined-plane on two alignment pins forms V-shape.A return unit 10 is also had in draw-in bar, return unit one to be formed by connecting " work " font part through connecting rod 102 by upper promotion part 103 and lower promotion part 101, upper and lower promotion part is respectively above and below alignment pin wedge part, respectively there is inclined-plane the upside that the transverse part of upper and lower promotion part divides, and inclined-plane is parallel with the inclined-plane on alignment pin.Be connected through control wire 1 between return unit and the upper button of handle, be connected through extension spring 9 between return unit and the end cap of draw-in bar lower end, extension spring has the power pulled down to return unit all the time, the power to extrapolation making alignment pin obtain promotion part on return unit to impose on.

Locating hole leaves on a pair wall that outside link is vertical with alignment pin, total upper, middle and lower three is right, wherein namely locating hole one a(goes up locating hole) with alignment pin be harmonious time pull bar pull out and can supply oblique dilatory luggage case, locating hole two b(namely in locating hole) alignment pin when being harmonious pull bar pull-out part and lower end completely in outside link, now uprightly can carry out luggage case, namely locating hole one a(descends locating hole) pull bar lower end brake component works when being harmonious with alignment pin.

An elastomer block 7 is fixed with under the end cap of draw-in bar lower end, it is the combination of brake component and elastic component, when draw-in bar to allow alignment pin insert lower locating hole through handle to elastomer block can be made when pressing down between its lower end and ground to compress a little, and elastomer block supports casing and can compress ground and make luggage case can not from line slip when distress resolves.

During operation, press the button then that control wire is to pull-up, under return unit, alignment pin is pinched by promotion part inwards, and alignment pin and locating hole depart from.Then control wire is not to return unit effect to decontrol button, and return unit pulls down by extension spring, and on return unit, alignment pin struts by promotion part, and alignment pin is saved up strength to start out, and alignment pin will take advantage of a favourable situation to insert when running into locating hole.

Claims (2)

1. there is the four-wheel pulling-rod trunk preventing slide mechanism, have casing, casing is provided with four rolling, pull bar and brake component; Pull bar is made up of draw-in bar and outside link, and outside link is fixed on casing, and draw-in bar is enclosed within outside link with matched in clearance; Have positioner between outer tie rod, draw-in bar upper end is fixed with handle, and handle is provided with button, and button is through control wire connection locator; It is characterized in that in described outside link it being through, described brake component is arranged on draw-in bar lower end through axial elastic component, and the axis projection of axial elasticity part and brake component is no more than draw-in bar cross section; The locating hole that described positioner is mounted in the alignment pin on draw-in bar and is opened on outside link, alignment pin and locating hole are perpendicular to pull bar axis, alignment pin is connected with elastic force points to outside link spring from draw-in bar, alignment pin is also connected with return unit, described control wire is connected on return unit, provides the power overcoming described spring force when control wire pulls to return unit; Described outside link has three locating holes according to axially-aligned, when alignment pin coordinates with three locating holes from top to bottom successively draw-in bar be in respectively upwards pull out, lower end brake component terminates in outside link lower end and terminates in below roller landing ground three positions with upper and lower end brake component.

2. have the four-wheel pulling-rod trunk preventing slide mechanism as claimed in claim 1, it is characterized in that, in described positioner, the alignment pin on draw-in bar has two, two alignment pins are installed on the same axis; Be opened on the same axial location of locating hole on outside link and also have two, two location are also offered on the same axis; There is wedge alignment pin inner end, and there is parallel inclined-plane wedge the upper side and lower side, and the inclined-plane of two alignment pins is symmetrical, opens down on being all; Described return unit is a wedge, and wedge is " work " word structure, respectively has the inclined-plane of a pair symmetry up and down, and parallel with the upper lower inclined plane of alignment pin wedge respectively; Return unit upper end connects control wire, installs an extension spring between lower end and draw-in bar bottom plate.