Trolley structure with folding wheels
A trolley and foldable technology, which is applied in the field of trolleys, can solve the problems of large occupied space, reduced bearing capacity, and large space occupation, and achieves the effect of simple structure and small occupation of space.
Pending Publication Date: 2021-05-25
严能进
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Problems solved by technology
[0002] The wheels of existing trolleys generally do not have a folding function because they need to bear weight, and at the same time, in order not to be easily stuck by obstacles, they generally have a larger diameter! Then its disadvantage is: it takes up a lot of space when transporting and storing
Especially the stair climber with three wheels on one side takes up a lot of space! Chinese patent: "Folding stair climbing vehicle (ZL2018102914119)" discloses a stair climbing vehicle with foldable wheels, which can basically solve the above technical problems
But its disadvantages are: the structure is more complicated, and the main structural parts are made of plastic, which is easy to age and reduce the load-bearing capacity.
Method used
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[0041] A construction of a cart with collapsible wheels, such as figure 1 and transverse section figure 2 and vertical section image 3 As shown, it includes a bracket 10 , a tripod 20 , a folding wheel set 30 , a connecting column 40 , a chassis 50 , a folding shovel 60 , a limiting plate 70 and screws 80 . Described support 10 is as Figure 4 As shown, a bracket body 11 and a horizontal tube 12 are included. The bracket main body 11 is bent from an aluminum tube, and its cross section is as follows: Figure 5 As shown, there are three notch grooves 111 in the middle. There is a convex point 112 in the notch groove 111 . Described transverse tube 12 is as section Figure 6 As shown, there is a screw groove 121 in the middle of it.
[0042] Described tripod 20 is as Figure 7 and section Figure 8 As shown, there are three screw slots 21 in the middle. There is a linear hinged structure consisting of a groove 22 parallel to the chord and the center of the circle, a ...
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The invention provides a trolley structure with folding wheels, which comprises a support, a foot stool, a folding wheel set, a connecting column, a bottom frame, a folding shovel plate, a limiting plate and a screw, and is characterized in that a notch groove in the lower end of a support body of the support is connected with the outer wall of a screw groove of the foot stool; salient points at the lower end of the support main body are fixedly connected with the screw grooves of the foot stands and the through holes of the underframe through screws; a semi-circular ring body of a folding frame of the folding wheel set is hinged to a groove of a foot stool through a connecting column, a V-shaped protrusion is connected with a V-shaped groove of the foot stool, and a screw groove in the middle of the V-shaped protrusion is connected with a limiting plate through a screw. The groove of the bottom frame main body of the bottom frame is hinged with the semicircular ring body of the shovel plate main body of the folding shovel plate through a connecting column. The trolley structure with folding wheels is simple in structure. The wheels can be folded, the occupied space for transportation and storage is small, and meanwhile structural parts are made of aluminum alloy and are durable.
Description
technical field [0001] The invention belongs to the technical field of trolleys, in particular to the structure technology of a trolley with foldable wheels. Background technique [0002] The wheels of existing trolleys generally do not have a folding function because they need to bear weight, and at the same time, in order not to be easily stuck by obstacles, they generally have a larger diameter! Then its disadvantage is that it occupies a large space during transportation and collection. Especially the stair climber with three wheels on one side takes up a lot of space! Chinese patent: "Folding Stair Climbing Vehicle (ZL2018102914119)" discloses a stair climbing vehicle with foldable wheels, which can basically solve the above technical problems. However, its disadvantages are: the structure is relatively complicated, and the main structural parts are made of plastic, which is relatively easy to age and reduce the load-bearing capacity. Contents of the invention [0...
Claims
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IPC IPC(8): B62B1/12
CPCB62B1/12B62B2205/12
Inventor 严能进
Owner 严能进