CN2347463Y

CN2347463Y - Expansion control structure of luggage roller

Info

Publication number: CN2347463Y
Application number: CN 98218367
Authority: CN
Inventors: 黄亮远
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-18
Filing date: 1998-08-18
Publication date: 1999-11-10
Anticipated expiration: 2008-08-18

Abstract

The utility model relates to an expansion control structure of a suitcase roller, comprising an inner tube, an outer tube, a fixing plate, and a V-shaped spring, wherein, the inner and the outer tubes are in shape of a long square tube; the inner tube is smaller than the outer tube, and the two tubes are sheathed mutually; the V-shaped spring is in shape of torsion and is arranged in the case body. The utility model is characterized in that a hook is respectively arranged above the inner wall edge on the left and the right sides of the inner tube; a square hole is arranged on the lower part of the hook, and the bottom end is provided with a baffle plate and is pivoted with a pulley wheel; a wall surface on the back of the outer tube is connected with a vertical face in the L-shaped fixing plate, the symmetric hooks are respectively arranged above the left and the right inner wall edges, and the lower part is provided with the side hole; the pulley wheel is retracted into the plane on the bottom of the suitcase correspondingly. The utility model is used for the suitcase.

Description

The extension and contraction control structure of luggage case pulley

The utility model relates to the pulley of bottom half, refers to that especially pulley stretches falling unit.

The pulley of existing luggage case outwards is generally and is exposed to outside the casing, and fixes, in handling process, easily because of extruding, throw to fall and pulley is damaged or come off; The wheel shaft of pulley is located in the tank wall of luggage case simultaneously, and thickness increases, and has reduced the volume of luggage case again relatively.

The purpose of this utility model provides a kind of pulley and can bounce back not make the extension and contraction control structure of impaired luggage case pulley.

The purpose of this utility model is achieved in that the extension and contraction control structure of luggage case pulley, it comprises interior pipe, outer tube, fixed head and V-arrangement spring, inner and outer pipe is rectangular tubulose, interior pipe is less than outer tube and mutual fit, the V-arrangement spring is and reverses shape and be located in the box body, it is characterized in that: interior pipe left and right side inner frieze top is respectively equipped with grab, and is provided with square hole in the grab below, and the bottom is established a baffle plate and is articulated with a pulley; Outer tube rear wall is connected in vertical plane in the L shaped fixed head, and left and right inner frieze top is respectively equipped with the grab of symmetry, and the below is provided with square hole; The V-arrangement both ends of the spring connects the fixture block of symmetry respectively and is respectively equipped with the collar that supplies the tying-up stay cord; Pipe and hook together grab respectively in box body weldering is located in inner and outer pipe with spring, interior pipe is when drop-down, fixture block is sticked in the square hole of outer tube, pulley is stretched on the luggage case bottom, when contracting in the V-arrangement spring, fixture block breaks away from square hole, and interior pipe is withdrawn because of the grab spring tension in the outer tube, and pulley is bounced back in the plane of luggage case bottom.

Above-mentioned design, pulley can bounce back in the plane of luggage case, has reached the effect of protected unlikely damage.

Below by drawings and Examples the utility model is described further again:

Fig. 1,2 the utility model perspective exploded view;

Fig. 3 the utility model cross-sectional schematic;

Fig. 4 the utility model retraction action schematic diagram;

Fig. 5 the utility model projection action schematic diagram;

Fig. 6,7 the utility model user mode schematic diagrames;

As Figure 1-3: pipe 1, outer tube 2, fixed head 3 and V-arrangement spring 4 in the utility model comprises, inner and

outer pipe

1,2 is rectangular tubulose, interior pipe 1 is less than outer tube 2 and mutual fits, V-arrangement spring 4 is and reverses shape and be located in the box body 40, it is characterized in that: interior pipe 1 left and right side inner frieze top is respectively equipped with grab 11, and being provided with square hole 12 in grab 11 belows, the bottom is established a baffle plate 13 and is articulated with a pulley 14; Outer tube 2 rear walls are connected in vertical plane in the L shaped fixed head 3, and left and right inner frieze top is respectively equipped with the grab 21 of symmetry, and the below is provided with square hole 22; V-arrangement spring 4 two ends connect the fixture block 41 of symmetry respectively and are respectively equipped with the collar 42 that supplies tying-up stay cord 44; Pipe 1 and with spring 5

grabs

11,21 that hook together in inner and outer pipe respectively in box body 40 weldering is located at, interior pipe 1 is when drop-down, fixture block 41 is sticked in the square hole 22 of outer tube 2, pulley 14 is stretched on luggage case 6 bottoms, when contracting in the V-arrangement spring 4, fixture block 41 breaks away from square holes 22, and interior pipe 1 is withdrawn because of grab spring 5 pulling force in the outer tube 2, and pulley 14 is bounced back in the plane of luggage case 6 bottoms.Wherein, these box body 40 inwalls and, be provided with a fixed leg 401 for V-arrangement spring 4 sealed fixedly usefulness.Be to be locked in fixed leg 401 after V-arrangement spring 4 wears its centre bore with a screw 43 and screw seat 15.Wherein, these outer tube 2 upper limbs are provided with a ceramic conduit 23, wear the back and are connected in a draw ring 441 with magnetic for stay cord 44, make pulling more smooth and easy.Wherein, these fixed head 3 horizontal plane root edges del pillar 24 that has been sticked wears for stay cord 44, makes stay cord 44 be able to horizontal.Wherein, a sleeve pipe 402 is located in this box body 40 wall edge top, and stay cord 44 is arranged in box body 40 wall edge, and the sleeve pipe 402 that the top is set is to constitute the upwards fulcrum of pulling.Wherein, fixed head 3 horizontal plane root edges are sticked one to triangle pillar 24, wear for stay cord 44, make stay cord 44 be able to horizontal.Wherein, a plurality of screws 31 are arranged on the fixed head 3, so that be installed on four base angles of luggage case 6.

Shown in Fig. 4-7: when luggage case 6 is moved, only need to make fixture block 41 be sticked in square hole 22 interior pipe 1 downward pull, pulley 14 promptly is stretched on the bottom of luggage case 6, so that slide.

When need make pulley 14 retractions, only need draw draw ring 441, spring 4 inwardly contracts because of the pulling force of stay cord 44, drive fixture block 41 relatively, make its square hole 22 that breaks away from outer tube 2, interior pipe 1 will be because of the pulling force of grab spring 5, and upwards is retracted in the outer tube 2, thereby pulley 14 is bounced back in the plane of luggage case 6 bottoms thereupon, and anti-limited slip wheel 14 is collided.

Claims

1, the extension and contraction control structure of luggage case pulley, it comprises interior pipe, outer tube, fixed head and V-arrangement spring, inner and outer pipe is rectangular tubulose, interior pipe is less than outer tube and mutual fit, the V-arrangement spring is and reverses shape and be located in the box body, it is characterized in that: interior pipe left and right side inner frieze top is respectively equipped with grab, and is provided with square hole in the grab below, and the bottom is established a baffle plate and is articulated with a pulley; Outer tube rear wall is connected in vertical plane in the L shaped fixed head, and left and right inner frieze top is respectively equipped with the grab of symmetry, and the below is provided with square hole; The V-arrangement both ends of the spring connects the fixture block of symmetry respectively and is respectively equipped with the collar that supplies the tying-up stay cord; Pipe and hook together grab respectively in box body weldering is located in inner and outer pipe with spring, interior pipe is when drop-down, fixture block is sticked in the square hole of outer tube, pulley is stretched on the luggage case bottom, when contracting in the V-arrangement spring, fixture block breaks away from square hole, and interior pipe is withdrawn because of the grab spring tension in the outer tube, and pulley is bounced back in the plane of luggage case bottom.

2, the extension and contraction control structure of luggage case pulley as claimed in claim 1 is characterized in that: wherein, this inboard wall of cartridge face is provided with a fixed leg for the sealed fixedly usefulness of V-arrangement spring.

3, the extension and contraction control structure of luggage case pulley as claimed in claim 1 is characterized in that: wherein, this outer tube upper limb is provided with a ceramic conduit.

4, the extension and contraction control structure of luggage case pulley as claimed in claim 1 is characterized in that: wherein, and this fixed head horizontal plane root edge del pillar that has been sticked.

5, the extension and contraction control structure of luggage case pulley as claimed in claim 1 is characterized in that: wherein, a sleeve pipe is located in this box wall edge top.