CN2185709Y

CN2185709Y - Portable handcar for travelling up stairs

Info

Publication number: CN2185709Y
Application number: CN 93243086
Authority: CN
Inventors: 李尚智
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-22
Filing date: 1993-10-22
Publication date: 1994-12-21
Anticipated expiration: 2003-10-22

Abstract

The utility model discloses a portable handcar for going up stairs which is a man-power convey tool for carrying heavy things to go upstairs and downstairs. The utility model is suitable for the families living in the house buildings without elevators. The utility model is characterized in that the middle part of the handcar frame is hinged with a rotatable bracket, and the bracket is used as the supporting point of a lever to lift heavy things when the utility model carries heavy things to go upstairs and downstairs. Because the supporting point of the distance of centre of gravity of the utility model is near to the supporting point of the distance of centre of gravity of the carried heavy things, small power is acted on a handle, and the heavy thing is lifted and is conveyed to stairs step by step.

Description

Portable handcar for travelling up stairs

The disclosed light cart for travelling up or down stairs of the utility model is a kind of manpower transport's instrument of loads stair activity.

Do not establish in the residential building of elevator, the carrying of daily necessities is the problem that often runs into.Concerning the people of general muscle power, carrying liquefied petroleum gas tank and so on article stair activity is a very thing of difficulty.Therefore, to not establishing the residential building of elevator, upward downstairs handbarrow is the ten minutes needs.Existing various motor-driven or manpower cart for travelling up or down stairs because of complex structure cost height, is not suitable for family and uses, and especially is not suitable for the family that uses once in a while or often do not use.

The purpose of this utility model, being provides a kind of easy manpower transport's instrument downstairs of going up for average family.

The characteristics of light cart for travelling up or down stairs are the hinged rotary supports in the middle part of vehicle frame.During light cart for travelling up or down stairs loads stair activity, be the fulcrum of lever with the support, because the distance of centre of gravity fulcrum of light cart for travelling up or down stairs and institute's loads is very near, the very little power of effect can rise weight on light cart for travelling up or down stairs handle, and the single order single order is served stair.

Below in conjunction with embodiment, describe the principle and the structure thereof of light cart for travelling up or down stairs in detail:

As shown in Figure 1, wheel 1 is contained in the front end of vehicle frame 2, the hinged rotary support 3 in the middle part of vehicle frame, the middle part of support connects a slat gum band 4, there is a hook 5 end of rubber tape, and hook can be caught on the little ring at vehicle frame front portion or rear portion, forward or pull back locking bracket.A tube 6 that can rotate 90 ° around the support axle center is equipped with near the hinged place in support top.Position as shown in fig. 1, rubber tape is strained support forward, a tube make support forward and the minimum angle that forms between the vehicle frame be about 70 °; When going downstairs, rubber tape pulls back locking bracket, this moment the tube behind the half-twist make support backward and the minimum angle that forms between the vehicle frame be about 65 °.

As shown in Figure 1, when loading is gone upstairs, to the handle that presses down light cart for travelling up or down stairs, jointed shaft with support is a fulcrum, raise body forward structure, when shoulder height of wheel rising stair of light cart for travelling up or down stairs front end, push light cart for travelling up or down stairs forward simultaneously, make wheel ride over (as shown in Figure 2) on the last layer step.At this moment, be fulcrum with the wheel touchdown point again, raise light cart for travelling up or down stairs handle, behind the support touchdown point built on stilts, strain vehicle frame forward by the elastic force of rubber tape, put down vehicle frame this moment, finishes the action of climbing one deck stairway step.When loading was gone downstairs, the little ring at vehicle frame rear portion was caught in the hook on the rubber tape, a tube half-twist.From Fig. 1 position, raise light cart for travelling up or down stairs handle earlier, behind the support touchdown point built on stilts, rubber tape is strained support backward, puts down vehicle frame then, and support drops on down on the first floor halfpace rank.At last, push down light cart for travelling up or down stairs handle, pull back, wheel drops to down on the first floor halfpace rank, finishes down the action on first floor halfpace rank.

Claims

1, light cart for travelling up or down stairs comprises wheel and vehicle frame part, it is characterized in that: the hinged support that can rotate around jointed shaft in perpendicular to the jointed shaft plane in the middle part of vehicle frame;

2, light cart for travelling up or down stairs as claimed in claim 1 is characterized in that: support is equipped with the tube of a limit bracket around the jointed shaft slewing area near the jointed shaft place;

3, light cart for travelling up or down stairs as claimed in claim 1 or 2 is characterized in that: mid-stent connects the rubber tape that can strain support forward or backward.