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Multistage expansion type trolley

An expandable, trolley technology, applied in the field of trolleys, can solve the problems of not making good use of the cargo area of ​​the cargo platform, affecting the carrying and use of the trolley, and occupying a large space for the trolley, so as to achieve easy portability and use, and flexible use , the effect of reducing the space occupied

Active Publication Date: 2020-06-26
河南省第二实验中学 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing trolley has the following defects: on the one hand, the trolley will occupy a large space; on the other hand, the flat area of ​​the loading platform is fixed, the loading area is limited, and it cannot be expanded or the expansion area is limited, and the loading platform cannot be well utilized The loading area is limited, so the cargo volume is limited, which affects the carrying and use of trolleys

Method used

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  • Multistage expansion type trolley
  • Multistage expansion type trolley
  • Multistage expansion type trolley

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1 to Figure 10 As shown, a kind of multi-stage extended trolley of the present embodiment includes a loading platform, a handrail bar 4 installed on the loading platform for pushing and pulling, and a walking wheel 5 installed on the lower side of the loading platform. The loading platform can be Realize folding expansion, pulling expansion and flipping expansion.

[0050] The folding expansion of the loading platform is realized by the following structure: the loading platform is a folding structure composed of a load-bearing plate 1 and expansion plates arranged on the left and right sides of the load-bearing plate 1, and the expansion plate on the left side of the load-bearing plate is called The left expansion board 2, the left expansion board 2 is hinged on the left edge of the load-bearing board 1, the expansion board located on the right side of the load-bearing board 1 is called the right expansion board 3, the right expansion board 3 is hinged o...

Embodiment 2

[0067] Such as Figure 11 As shown, the difference between this embodiment and the first embodiment is that the hinge point between the armrest bar 4 and the load-bearing plate 1 is not only located on the front side of the load-bearing plate, but also the hinge points between the armrest bar 4 and the load-bearing plate 1 are close to the left and right sides respectively. expansion board settings. This design increases the width of the handrail bar, which is convenient for controlling the walking of the push-pull trolley and improves the working stability.

Embodiment 3

[0069] Such as Figure 12 and 13 As shown, the difference between this embodiment and the first embodiment is that the handlebar 4 is a U-shaped structure assembled and assembled by a pull rod 41, an extension rod 42 and a handle rod 43, and the pull rod 41 is provided with two and They are hingedly connected with the bearing plate 1 respectively, and at least two extension rods 42 and pull rods 41 are correspondingly provided with at least two, and the extension rods 42 are detachably connected to the extension line of the tail of the pull rods 41; Both ends of the handle bar 43 are detachably connected to the corresponding pull bar 41 or extension bar 42 respectively.

[0070] In this embodiment, the extension rod 42 is inserted into the tail of the corresponding pull rod 41, and is fixed by a hoop or a fastening bolt that penetrates horizontally; the two ends of the handle bar 43 are inserted into the corresponding pull rod 41 or extended The rod 42 is fixed by a hoop or ...

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Abstract

The invention discloses a multistage expansion type trolley. The trolley comprises a cargo carrying platform, a grab rail installed on the cargo carrying platform and used for pushing and pulling, andwalking wheels installed at the lower side of the cargo carrying platform, the cargo carrying platform is of a folding structure composed of a bearing plate and expansion plates arranged on the leftside and the right side of the bearing plate, the left expansion plate is hinged to the left edge of the bearing plate, the right expansion plate is hinged to the right edge of the bearing plate, andopening and closing limiting devices used for limiting the opening angles of the expansion plates are arranged between the expansion plates and the bearing plate; the left expansion plate and the right expansion plate are respectively provided with tooth parts which are matched with each other; drawing grooves with backward openings are formed in the bearing plate and the expansion plate, and drawing plates in sliding fit with the drawing grooves are arranged in the drawing grooves in a matched mode; and the drawing plates on the expansion plates are each of a turning plate type drawing platestructure. The occupied space of the trolley can be reduced, and the bearing area of the cargo carrying platform can also be expanded in a folding, drawing and turning multistage manner.

Description

technical field [0001] The invention relates to a trolley, in particular to a multi-stage extended trolley. Background technique [0002] The handcart is a transport vehicle that is pushed and pulled by manpower. Although the material handling technology continues to develop, the handcart is still used as an indispensable transport tool. Trolleys are widely used in production and life because of their low cost, simple maintenance, convenient operation, and light weight. They can work in places where motor vehicles are inconvenient, and are very convenient for carrying lighter items in short distances. [0003] The trolley is generally composed of a loading platform, a handrail for pushing and pulling, and a walking wheel installed on the lower side of the loading platform. The loading platform of the existing trolley generally adopts a plate structure, and the handrail is fixed on the loading platform tilted upward. The existing trolley has the following defects: on the one...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62B3/02B62B5/00
CPCB62B3/022
Inventor 王浩博朱玺道王佳晨陈柏元于正辰任瀚承吴萌朱庆乡彭子涵陈非儿李思源罗佳睿朱理利乔冠淇王含菲杨紫涵
Owner 河南省第二实验中学
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