CN2220409Y

CN2220409Y - Convenient wheel

Info

Publication number: CN2220409Y
Application number: CN 94245067
Authority: CN
Inventors: 邹勇光; 邹东晓; 邹武光; 王东晔; 王秀宝; 孙钦钦
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-15
Filing date: 1994-11-15
Publication date: 1996-02-21
Anticipated expiration: 2004-11-15

Abstract

The utility model relates to a convenient wheel vehicle which is a bogie for conveying objects, comprising a vehicle frame (2), vehicle wheels (4), a handle (1), a guide rail (5) and a tension spring (9). The lower half section of the vehicle frame is a guide rail frame (3), the vehicle wheels are install at the lower end of the guide rail frame, the guide rail is installed on the guide rail frame, the vehicle wheels can slide relatively to the guide rail, and the both ends of the tension spring are respectively connected with the guide rail and the guide rail frame. When conveying heavies, the guide rail leans against the flange of a stair step, and the vehicle frame is pulled upward along the slanting direction of the stair. When the guide rail frame slides upward along the guide rail and the wheels advance for a step, the guide rail automatically rises to reset depending on the tension of the tension spring, so that the heavies can be easily pulled upstairs step by step.

Description

Make things convenient for car

The utility model relates to a kind of dolly that object is used of carrying.

Carrying heavy goods upstairs is the thing of requiring great effort very much.In order to make carrying heavy goods laborsaving, have the report of multiple handcart capable of travelling up stairs.Respectively introduced a kind of structure of stepping on the building as Chinese patent 87209225 and 87206821 with dolly.

The purpose of this utility model is to propose another kind of structure of stepping on the building with dolly.

This car that makes things convenient for comprises vehicle frame, wheel, handle, handle is contained in the upper end of vehicle frame, it also comprises guide rail and extension spring, the lower semisection of vehicle frame is a guide rail bracket, wheel is contained in the lower end of guide rail bracket, and guide rail is contained on the guide rail bracket, and can slide with respect to guide rail bracket, one end and the guide rail of extension spring fix, and the other end is fixed on the guide rail bracket.

This when making things convenient for car to use, the weight of needs carrying is placed on the vehicle frame.With pulling handle, wheel lands, and can tow on the ground.When going upstairs, the guide rail below the vehicle frame is leaned against on the step ledge of stair, the direction of tilt of vehicle frame along stair upwards drawn, guide rail bracket promptly upwards slides along guide rail, treat wheel rising one-level step after, wheel lands, lead and hold unsettledly, promptly pulled on, be returned to original position by extension spring.Repeat so repeatedly, can more step by step weight be pulled on stair.

Accompanying drawing 1 is this integral structure figure that makes things convenient for car;

Scheme drawing when accompanying drawing 2 is gone upstairs for the vehicle-mounted thing of this convenience;

Accompanying drawing 3 is the constructional drawing of guide rail and guide rail bracket;

Accompanying drawing 4 is the transverse sectional view of Fig. 3;

Accompanying drawing 5 is for making things convenient for the another kind of constructional drawing of car;

Accompanying drawing 6 is the constitution diagram after making things convenient for car folding.

As shown in Figure 1, this wheel (4) that makes things convenient for car is contained in the lower end of guide rail bracket (3), and handle (1) is contained in the upper end of vehicle frame (2), and the bottom of vehicle frame (2) is guide rail bracket (3), and guide rail (5) is housed on the guide rail bracket, guide rail and guide rail bracket energy slide relative.The position of guide rail when being placed on the level land (5) is than wheel (4) height, thereby guide rail do not contact with ground, makes things convenient for car can rely on the rolling of wheel and promotes.When going upstairs, guide rail leans against on the flange (7) of stairway step as shown in Figure 2, and vehicle frame can upwards slide along guide rail.(12) are removed the hook that thing is used for holding among the figure.

Shown in Fig. 3 and 4, have extension spring (9) to link to each other between guide rail and the guide rail bracket, extension spring can have two, guide rail bracket upwards (or downwards) when sliding extension spring be elongated.As shown in Figure 2, when guide rail bracket is up to wheel when coming to stairway step flange (7) limit, slightly firmly one draw, wheel promptly strides across flange (7), has gone up one deck step.When wheel was crossed over step, guide rail bracket was lifted on slightly, and guide rail (5) breaks away from step ledge (7), relies on the elastic force of extension spring, guide rail promptly by on move the home position to.Can continue the next round action.Shown in Fig. 3 and 4, in order to reduce the friction force between guide rail and the guide rail bracket, can in guide rail bracket, adorn row's pulley (8), pulley contacts with guide rail, makes the cliding friction between guide rail and the guide rail bracket change friction of rolling into.In order to reduce bump, can be below guide rail dress one deck rubber layer.Extension spring can be made of the rubber strip of good springiness.

As shown in Figure 1, a detouchable front-wheel (6) can also be arranged at the top of vehicle frame, when front-wheel is contained in vehicle frame top, makes things convenient for car can lie on the ground and drags.As shown in Figure 5, when being contained in front-wheel on the strut bar (10) additional on the vehicle frame, make things convenient for car just can heeling condition to support.(11) are for placing the pressure pin of article among the figure.

It is folding to make things convenient for the handle (1) of car also can make, and the front portion of vehicle frame (2) also can collapse, and like this, after whole car was folded up, just as shown in Figure 6, volume was less, is easy to carry.If when only handle being collapsed, the height of vehicle frame just in time is suitable for being hanging on the bicycle in order to the carrying gas-jar.

Claims

1, a kind of car that makes things convenient for, comprise vehicle frame (2), wheel (4), handle (1), handle is contained in the upper end of vehicle frame, it is characterized in that it also comprises guide rail (5) and extension spring (9), the lower semisection of vehicle frame is guide rail bracket (3), and wheel is contained in the lower end of guide rail bracket, and guide rail is contained on the guide rail bracket, and can slide with respect to guide rail, the two ends of extension spring link to each other with guide rail and guide rail bracket respectively.

2, the car that makes things convenient for as claimed in claim 1 is characterized in that having in the described guide rail bracket row's pulley (8), and pulley contacts with guide rail.

3, the car that makes things convenient for as claimed in claim 1 or 2 is characterized in that the top of described vehicle frame also has a detouchable front-wheel (6).