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Folding cart with connecting rod locking mechanisms

A locking mechanism and trolley technology, applied to trolleys, multi-axis trolleys, motor vehicles, etc., can solve problems such as unfavorable carrying and storage, cumbersome operation methods, and complicated folding methods, and achieve simple locking, high safety, and small size Effect

Pending Publication Date: 2017-11-17
李兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, folding trolleys generally take up a large space after being folded, which is not conducive to carrying and storing, and the folding method is complicated, and some require the user to manually fold it multiple times, and the operation method is very cumbersome

Method used

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  • Folding cart with connecting rod locking mechanisms
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  • Folding cart with connecting rod locking mechanisms

Examples

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Embodiment 1

[0043] The present invention proposes a folding trolley using a link locking mechanism, which includes a folding frame and wheels that can be unfolded, folded once and folded twice, and can be locked at any hinge point on the side of the locking mechanism of the link. The locking of the folding trolley using the link locking mechanism can be realized, and the utility model has better stability.

[0044] Such as figure 1 As shown, the folding frame includes two sets of link locking mechanisms, and the link locking mechanism includes a first link 1, a second link 2, a third link 3, a fourth link 4, and a second link. Five connecting rods 5, the sixth connecting rod 6, the seventh connecting rod 7 and the eighth connecting rod 8.

[0045] Wherein, the third connecting rod 3 includes a connected third short rod 31 and a third long rod 32, and the fifth connecting rod 5 includes a fifth long rod 52 and a fifth short rod 51 connected thereto; Five short rods 51 and the fifth long ...

Embodiment 2

[0055] In this embodiment, another folding trolley using a link locking mechanism is also proposed. Compared with Embodiment 1, the connection mode of the link locking mechanism is different. The specific difference is that the fourth link 4 includes The fourth long rod 42 is connected to the fourth short rod 41, and the fourth long rod 42 is connected to the fourth short rod 41, wherein, preferably, the fourth long rod 42 and the fourth short rod 41 are integrally formed; the fourth The other end of the long rod 42 is hinged with the sixth connecting rod 6 , the fourth short rod 41 is hinged with the eighth connecting rod 8 , and the eighth connecting rod 8 is no longer connected with the fifth connecting rod 5 .

[0056] Such as Figure 7 with Figure 8 As shown, the folding frame also includes two sets of link locking mechanisms, the link locking mechanism includes a first link 1, a second link 2, a third link 3, a fourth link 4, The fifth connecting rod 5 , the sixth con...

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Abstract

The invention provides a folding cart with connecting rod locking mechanisms. The folding cart comprises a folding frame capable of being unfolded, primarily folded and secondarily folded, an eleventhly connecting rod and a wheel; the folding frame is composed of two connecting rod locking mechanisms; the connecting rod locking mechanisms are applied, in the unfolding state, any hinge points on the side edges on the connecting rod locking mechanisms are locked, a stable truss structure is formed, stability is easily controlled, and safety is high. After the frame is unlocked, through the external force, primary folding and unfolding can be rapidly achieved in a full-linkage manner, secondary folding can be achieved after primary folding, after whole folding, occupied space is small, and the cart is placed in different sites.

Description

technical field [0001] The invention relates to the field of mechanical locking mechanisms, in particular to a folding trolley using a link locking mechanism. Background technique [0002] At present, the link mechanism has been applied to folding trolleys, and the requirements for the stability and operability of the trolleys are getting higher and higher. There is an obvious demand for trolleys that are simple and reliable in operation, small in size after folding, and easy to carry. There are many types of existing folding carts, the locking principles are different, the number of frame rods is different, and the connection positions between the rods are different, so the locking methods and folding methods are different. [0003] However, in the prior art, folding trolleys generally take up a large space after being folded, which is not conducive to carrying and storing, and the folding method is complicated, and some require the user to manually fold it many times, and...

Claims

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Application Information

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IPC IPC(8): B62B3/02B62B7/06
CPCB62B3/02B62B7/06
Inventor 李兰
Owner 李兰
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