CN2072933U - Portable multipurpose foldable baggage trolley - Google Patents

Abstract

The utility model relates to a multipurpose foldable baggage trolley which has an axle and a plurality of wheels and can be driven on the flat ground or stairs. The utility model uses the device that the rotating under frame drives the folding of the trolley feet and the wheel. The utility model not only has the performance of driving on the flat ground and on the stairs safely and evenly, but also is characterized in that the folding operation is simple, and the carrying and storing are convenient. The utility model turns conveniently and flexibly, the range of uses is wide. The utility model especially fits for the baggage carrying of the travelers and the short transport of the small family articles.

Description

Portable multipurpose foldable baggage trolley

The utility model relates to a kind of hand-propelled vehicle, and particularly a kind of have a plurality of wheels of axletree band, can travel collapsible portable baggage car on level land or stair.

At present, folding hand barrow suitable environment is comparatively single, such as the collapsible baggage cart of selling on the market, can only adapt to level land loading operation.Dual-purpose barrow (China Patent No.: 88217449.5), can be used for the level land and cut thing, also be adapted at travelling on the stair in a kind of high-mobility, multipurpose, wheeled vehicle stair level land is also arranged.On level land and stair, use, steadily safety, dependable performance, and have just the differ random adaptation ability of step of various width.But this stairs and flat land dual purpose car is regulated trouble in use, and particularly because wheel can not fold, space shared after car is folding is still bigger, therefore can not make things convenient for, carry leggiero, has certain difficulty in actual use.

The purpose of this utility model is to provide a kind of baggage car that uses that is applicable on level land and stair, and can fold easily and launch, and is easy to carry and preserves.

The utility model is made up of handle frame, back rest, underframe, axletree, car foot rest, car pin and wheel.The both sides, lower end of handle frame are rotationally connected by bearing pin and both sides, back rest upper end.Underframe is captiveed joint with rotating shaft, and is rotationally connected by rotating shaft and back rest.Axletree is connected by axle sleeve with bottom, back rest both sides, and the axletree both sides are equipped with the car foot rest, and equal angles is installed three car pin on each car foot rest.On each car pin wheel is housed all.In order to reach the purpose that is easy to carry and preserves, the utility model adopts the mode of folded bicycle pin and wheel: promptly be equipped with the quadrant gear that an energy is meshed with tooth bar in the car foot rest at nearly car foot rest one end of each car pin, the car pin is rotationally connected by bearing pin and the formation of car foot rest; Be built-in with one at the car foot rest and can make the tooth bar of axial motion, and be equipped with spring from the axletree axial action in tooth bar along axletree; Be equipped with a transmission arm that is fixed thereon in the rotating shaft of underframe, and be connected with linkage by bearing pin, be built-in with a pull bar at axletree, the one end is connected with linkage by bearing pin, and the other end is equipped with and can drives the projection that tooth bar is made axial motion.Like this, rotate underframe, by the transmission of transmission arm drivening rod device, pull bar effect tooth bar, rack drives quadrant gear make the car pin finish folding and launch action.

The utility model is reasonable in design, and is simple in structure, and cost of manufacture is cheap.Owing to adopted three car pin of equal angles installation and wheel on the car foot rest, make the performance that the utlity model has level land, the use of stair high-mobility, multipurpose, wheeled vehicle, and simple to operate when upper and lower stair, it is safe and reliable to operate steadily.Add that the utility model has adopted the folding device of car pin and wheel, the utility model has been increased be easy to carry and characteristics such as storage.It is convenient, flexible to turn, and has enlarged range of use, and the luggage that is particularly useful for the traveller carries, the short distance delivery of family's small article etc.

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

Fig. 1 is the utility model front view

Fig. 2 is the utility model right elevation

Fig. 3 is the A-A section-drawing of Fig. 1

Fig. 4 is the B-B section-drawing of Fig. 2

Fig. 5 is the part sectional view of car foot rest of the present utility model and car pin

Fig. 6 is the car leg structure figure of another embodiment of the utility model

Sequence number is respectively in the accompanying drawing: the 1-handle frame, the 2-position-limited lever, the 3-back rest, the 4-bearing pin, 5-left and right sides extending frame, the 6-underframe, the 7-rotating shaft, the 8-wheel, 9-car pin, 10-car foot rest, the 11-axle sleeve, the 12-pull bar, the 13-axletree, the 14-pilot bar, the 15-linkage, the 16-carriage, the 17-front support rod, the 18-transmission arm, the 19-bearing pin, the 20-pin, 20.1-carriage pin-and-hole, 20.2-back rest pin-and-hole, 21-elasticity cable wire, the 22-plastic protecting casing, the 23-bearing pin, the 24-quadrant gear, the 25-tooth bar, the 26-spring, 27-car pin upper-part, the 28-spring, the 29-bearing pin, 30-car underfooting parts.

With reference to Fig. 1, Fig. 2, the utility model is made up of handle frame 1, back rest 3, underframe 6, axletree 13, car foot rest 10, car pin 9 and wheel 8 etc.The both sides, lower end of handle frame 1 are rotationally connected by bearing pin 4 and both sides, back rest 3 upper end.Underframe 6 is captiveed joint with rotating shaft 7, and by rotating shaft 7 and back rest 3 be rotationally connected (referring to Fig. 3,4).Can retraction handles frame 1 and underframe 6 when the utility model is folding, to dwindle the volume of whole baggage car, be convenient for carrying.During expansion, open handle frame 1, and turnover position-limited lever 2, handle frame 1 is fixing with back rest 3, open underframe, open the extending frame 5 and the front support rod 17 of the left and right sides, just can deliver article such as luggage.

Axletree 13 of the present utility model is connected by axle sleeve 11 with bottom, back rest 3 both sides, and axletree 13 both sides are equipped with car foot rest 10, and equal angles is installed three car pin 9 on each car foot rest 10.On each car pin 9, wheel 8 is housed all.Such structure make the utility model can be on level land and stair the travelling of safety and steady.

With reference to Fig. 5, car pin of the present utility model, wheel fold mechanism are such: at the quadrant gear 24 that an end of each car pin 9 nearly car foot rest 10 has an energy to be meshed with tooth bar 25 in the car foot rest 10, car pin 9 forms with car foot rest 10 by the bearing pin 23 in quadrant gear central authorities and is rotationally connected; Be built-in with one at car foot rest 10 and can make the tooth bar 25 of axial motion, and be equipped with a stage clip 26 within it along axletree.Be built-in with a pull bar 12 at axletree 13, the one end is connected with linkage 15 by bearing pin, and the other end is equipped with and can drives the projection that tooth bar 25 is made axial motion.

With reference to Fig. 3, present embodiment is equipped with a transmission arm that is fixed thereon 18 in the middle-end of rotating shaft 7, and the other end of transmission arm is connected with linkage 15 by bearing pin 19.Linkage 15 is made up of several connecting rods that the power of transmission arm 18 can be passed to left and right sides pull bar 12, and wherein a connecting rod is by guide pipe 14.

When opening baggage car underframe 6, transmission arm 18 rotates, and by linkage 15 effect pull bars 12, makes pull bar 12 drive tooth bar 25 and makes axial motion to baggage car central authorities.Simultaneously, tooth bar 25 compression springs 26, and drive quadrant gear 24, make car pin 9 launch to be mode of operation.When not needing to carry baggage car, draw underframe 6 in, this moment, pull bar 12 moved round about, and to two lateral movements of baggage car, car pin 9 folds and draws in tooth bar 25 under the effect of spring 26 restoring forces.

With reference to Fig. 4, all be equipped with carriage 16 in the both sides of back rest 3 of the present utility model, when underframe 6 launches, just in time ride on the concave surface of carriage 16.The utility model also is equipped with pin 20 respectively in the both sides of underframe 6, connect by the elasticity cable wire 21 outer plastic sheaths 22 that coat in the middle of two pins 20, and on left and right sides carriage 16 and both sides back rest 3, have pin-and-hole 20.1 and 20.2, pin 20 falls into pin-and-hole 20.1 or 20.2 when folding or expansion underframe 6, to play the effect of fixed frame 6, during in case work, the wheel effect of carrying outside draws underframe in by linkage down.

With reference to Fig. 5, car pin 9 of the present utility model can be whole a composition, and wheel 8 is fixed on a side of car pin 9 by bearing pin.

With reference to Fig. 6, performance when turning on the level land in order to improve the utility model reduces turn radius, and its car pin 9 also can be made up of with the lower member 30 that has quadrant gear 24 upper-part 27 of fixing vehicle wheel 8.Upper and lower parts 27,30 are connected by bearing pin 29, respectively be equipped with the circular arc that one section shape is coincide mutually at their faying face, and respectively be equipped with a stage clip 28 between the faying face of the both sides of bearing pin 29.Like this, when baggage car was turned, the turning kinking force compresses spring 28 of car made car pin 9 to lopsidedness, has reduced turn radius.When last going downstairs, make car pin 9 be indexed to mode of operation by both sides stage clip 28.

Claims (3)

1, a kind of portable multi-purpose foldable luggage trolley, form by handle frame, back rest, underframe, axletree, car foot rest, car pin and wheel, both sides, handle frame lower end are rotationally connected by bearing pin and both sides, back rest upper end, underframe is captiveed joint with rotating shaft, and is rotationally connected by rotating shaft and back rest, and axletree is connected by axle sleeve with bottom, back rest both sides, the axletree both sides are equipped with the car foot rest, and equal angles is equipped with wheel by adorning three car pin on each car pin on each car foot rest, it is characterized in that:

A, be equipped with the quadrant gear that is meshed with tooth bar in the car foot rest at nearly car foot rest one end of each car pin, the car pin forms by bearing pin and car foot rest and is rotationally connected,

B, be built-in with one at the car foot rest and can make the tooth bar of axial motion, and be equipped with spring from the axletree axial action in tooth bar along axletree,

C, in the rotating shaft of underframe, be equipped with the transmission arm that is fixed thereon, and be connected with linkage by bearing pin,

D, be built-in with pull bar at axletree, the one end is connected with linkage by bearing pin, and the other end is equipped with and can drives the projection that tooth bar is made axial motion.

2, portable multi-purpose foldable luggage trolley according to claim 1 is characterized in that described car pin can be whole a composition, and wheel is fixed on a side of car pin by bearing pin.

3, portable multi-purpose foldable luggage trolley according to claim 1, it is characterized in that described car pin also can be made up of the upper-part of fixing vehicle wheel and the lower member that has a quadrant gear, upper and lower parts are connected by bearing pin, faying face at upper and lower parts respectively is equipped with the circular arc that one section shape is coincide mutually, and respectively is equipped with a spring between the faying face of the both sides of bearing pin.

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