CN2251517Y

CN2251517Y - Portable handcar

Info

Publication number: CN2251517Y
Application number: CN 96205029
Authority: CN
Inventors: 李前三
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-15
Filing date: 1996-03-15
Publication date: 1997-04-09
Anticipated expiration: 2006-03-15

Abstract

The utility model relates to a portable trolley. An under frame of the utility model is composed of a front under frame pipe (1), a rear under frame (2) pipe and a retainer (3). A handle is composed of an upper handle (4) pipe, a lower handle (5) pipe and the retainer (3); a long groove and a plurality of notches are arranged on a supporting plate (9); the upper end of a fixed block (13) of a wheel carrier (12) is provided with a quarter cambered surface. The wheel carrier (12) facing to the inner side of the under frame can rotate 90 DEG by the expansion and contraction of the front and the back under frames and the upper and the lower handles, the regulation of the supporting plate (9), and a rotary shaft and the quarter cambered surface at the upper end of fixed block (13). The utility model can step upstairs and downstairs; the under frame, the handle and the wheel carrier can be folded together, and the utility model is convenient to carry.

Description

Light waggon

The utility model relates to a kind of energy stair activity, and collapsible portable light waggon.

Waggon that in the market can stair activity, a kind of is four-wheel, preceding wheel diameter is less than trailing wheel, the front wheel spindle direct connection is at the vehicle frame front end, the Yi Jiaochu of rear wheel frame spider below vehicle frame, and the forward and backward wheel shaft discrepancy in elevation is the height of stair two-stage step, handle can be made fore-and-aft adjustment, but volume is heavy, can not fold, and carries inconvenience.Another kind is six to take turns, and wheel shaft is installed in bottom surface, vehicle frame middle part, and wheel carrier is equipped with at the wheel shaft two ends, and rubber tire is between two steel plates, and at a distance of 120 degree, radial direction is greater than the rubber tire radius at circumferencial direction in the axle center of three rubber tires, but wheel carrier can not fold, and inconvenience is carried.

The purpose of this utility model provide a kind of can stair activity, front and back wheel carrier distance of shaft centers from size, the length of handle, handle is whole with ground-surface adjustable included angle, especially wheel carrier can rotate folding and waggon easy to carry to underframe is inboard.

The later-model technical scheme of this reality is, this light waggon is made up of underframe, handle, support plate, wheel carrier, rubber tire etc., underframe is made up of preceding underframe (1), back underframe (2), steady arm (3), handle is by up knob (4), following handle (5), steady arm (3) are formed, and preceding underframe (1) is the H type, and back underframe (2) is made up of U-shaped pipe and cross bar (25), pipe link (26), up knob (4) is a U-shaped, and they are made with the metal foil pipe.Back underframe (2) pipe box is outside preceding underframe (1) pipe, following handle (5) pipe box is outside up knob (4) pipe, inboard, both sides inboard and following handle (5) pipe, the both sides of back underframe (2) pipe has the knock hole of symmetry, in the pipe of the rear end, both sides of preceding underframe (1) pipe and the lower end, both sides of up knob (4) steady arm (3) is installed, with rivet (27) that preceding underframe (1) pipe and up knob (4) pipe is fixing, steady arm (3) is made up of spring (6) and locating dowel pin (7), and locating dowel pin (7) exposes from managing the inboard.Hole that back underframe (2) pipe and following handle (5) pipe are inboard and locating dowel pin (7) are finished front and back underframe and the flexible location between the handle up and down.Following handle (5) pipe end adds packing ring and is positioned at underframe (2) two outsides, back with pin (8); Have elongated slot and several breach on two support plates (9), on the set pin (10) after they are enclosed within by its elongated slot on the two ends of underframe (2) the pipe outside, the upper end of two support plates (9) is positioned at down two inboards of handle (5) pipe with rivet (11)., may also be adjusted to underframe and fold with ground-surface angle by the elongated slot on the support plate (9) and breach adjustable handle grip; Wheel carrier (12) is welded into one by fixed block (13) and two long shaped plates, and fixed block (13) upper end is processed with 1/4th cambered surface, and spring (24) is enclosed within locating dowel pin (14) minor diameter place and is installed in the fixed block (13), and is spacing with iron wire (15).The termination of underframe before and after four wheel carriers (12) are installed in respectively, the fixed block (13) of wheel carrier (12) is fixed together with three rivets (18,20) with underframe pipe, adapter plate (16), locating plate (17,18), fixedly the rivet (19) of wheel carrier (12) and two locatings plate (17,18) is a turning cylinder, have two holes that become 90 degree symmetries with the axial line in fixing rivet hole on the locating plate (17), the diameter in hole is consistent with the diameter of locating dowel pin (14).Four rubber tires (21) are installed on respectively between wheel carrier (12) two long shaped plates, and are spacing with spring cotter (22) by wheel shaft (23).Because underframe, preceding underframe (1) pipe can stretch in underframe (2) pipe of back before and after underframe was divided into, handle also is divided into handle up and down, up knob (4) pipe can stretch in handle (5) pipe down, with ground-surface angle, also scalable and underframe are folded into a plane to handle by the elongated slot on the support plate (9) and breach adjustable handle grip.Again because wheel carrier (12) fixed block (13) upper end side direction in the underframe has 1/4th cambered surface, therefore wheel carrier (12) can be finished to the inboard rotation of underframe 90 degree by the hole on (19) turning cylinder of the rivet on the locating plate and the locating plate (17), thereby can make wheel carrier (12) and underframe be folded into a plane.Waggon can also be by wheel carrier before and after calling in distance of shaft centers from, and regulate handle, and stair activity easily with ground-surface angle.Therefore this waggon be a kind of can stair activity, and front and back wheel carrier distance of shaft centers from size, the length of handle, handle all can be adjusted with ground-surface angle, especially wheel carrier (12) can rotate folding waggon easy to carry to underframe is inboard.

Fig. 1 is light waggon schematic perspective view

(1) is preceding underframe among the figure, (2) be the back underframe, (4) be up knob, (5) be following handle, (7) be locating dowel pin, (8) be pin, (9) be support plate, (10) be set pin, (11) be rivet, (12) be wheel carrier, (16) be adapter plate, (17), (18) be locating plate, (20) be rivet, (21) be rubber tire, (22) be spring cotter, (23) be wheel shaft, (25) be rear transverse rod, (26) be pipe link, (28) be cross bar, (29) be rivet, (30) be attaching parts, (33) be shelf.

Fig. 2 is the light folding scheme drawing of waggon

(31) are that connecting panel, (32) are packing ring for rivet, (34) among the figure.

Fig. 3 be among Fig. 1 A to view

(14) are that locating dowel pin, (19) are rivet among the figure.

Fig. 4 is a C-C section-drawing among Fig. 1

(13) are that fixed block, (15) are spring for spacing iron wire, (24) among the figure.

Fig. 5 be among Fig. 1 B to view

Fig. 6 is an E-E section-drawing among Fig. 1

(3) are that steady arm, (6) are rivet for spring, (27) among the figure.

Fig. 7 is a D-D section-drawing among Fig. 1

Fig. 1 is the embodiment of this light waggon

Because in preceding underframe (1) pipe steady arm (3) is installed, back underframe (2) pipe box is pressed locating dowel pin (7) instantly outside preceding underframe (1) pipe, underframe before and after the push-and-pull, the distance of shaft centers of wheel carrier (12) is from adjusting between 450mm--500mm.Same owing in up knob (4) pipe steady arm (3) is installed, following handle tube is enclosed within outside up knob (4) pipe, instantly press locating dowel pin (7), the push-and-pull up knob, the length of adjustable handle grip, handle also can pass through elongated slot and several breach of support plate (9) and regulate handle with ground-surface angle, and setting range is that 40 degree are between 75 degree.When the locating dowel pin (14) of wheel carrier (12) fixed block (13) was upward located with the vertical hole of the parallel lines of the underframe tubular axis heart with locating plate (17), rubber tire was in walking states.The distance of shaft centers of front and back wheel carriers (12) is between 450mm--500mm, and handle is spent 40 with ground-surface angle--and adjust between 75 degree, waggon can be gone up downstairs.Crop rotation fulcrum after the elder generation lifts front-wheel go-cart forward in the time of upstairs, and trailing wheel terminates in the step forward position, front-wheel is taken on step, crop rotation fulcrum again lifts trailing wheel go-cart forward, and front-wheel terminates in the step forward position, trailing wheel is taken on step, so perseveration can be pushed into upstairs, in the time of downstairs, let nature take its course, go-cart is step by step down to bottom of the building.When carried out on the level land, the distance of shaft centers of front and back wheel carrier was from adjusting on demand with ground-surface angle with handle.The cross bar (25) of front and back underframe and the setting of pipe link (26) are mainly used in the folding of shelf (33).When waggon does not use, press down the preceding underframe of locating dowel pin (7) promotion and make wheel carrier axle center distance for minimum, owing to the effect of spring (6), after being advanced into certainly, locating dowel pin (7) locatees in the inboard knock hole of underframe (2).Same principle handle length up and down contracts to the shortest.Again handle is rolled over forward, support plate (9) by elongated slot on set pin (10) thereupon to front slide, until record book in accordion form to underframe top.Because there is 1/4th cambered surface underframe inboard, wheel carrier (12) fixed block (13) upper end, presses down locating dowel pin (14), wheel carrier (12) can be spent to the inboard rotation 90 of underframe, and goes up with the parallel location, hole of the parallel lines of the underframe tubular axis heart by locating plate (17).Underframe, handle and wheel carrier all fold like this, are easy to carry.

Claims

1, a kind of light waggon, it mainly is made up of underframe, handle, support plate, wheel carrier, rubber tire etc., it is characterized in that underframe is made up of preceding underframe (1) pipe, back underframe (2) pipe, steady arm (3); Handle is made up of up knob (4) pipe, following handle (5) pipe, steady arm (3); Have elongated slot and several breach on the support plate (9); Wheel carrier (12) is made up of fixed block (13), steady arm (14) and two long shaped plates, and fixed block (13) upper end is processed with 1/4th cambered surface.

2, according to the described waggon of claim, the fixed block (13) that it is characterized in that wheel carrier (12) is fixed together with three rivets (19,20) with underframe pipe adapter plate (16) and two locatings plate (17,18), and the turning cylinder of wheel carrier (12) is the fixing rivet (19) of wheel carrier (12) and two locatings plate.

3, according to claim 1,2 described waggones, it is characterized in that on the locating plate (17) of fixing one of wheel carrier (12), have two holes that become 90 degree symmetries with the axial line in fixing rivet hole.