CN2042841U

CN2042841U - Portable delivery fork

Info

Publication number: CN2042841U
Application number: CN 89200769
Authority: CN
Inventors: 魏连伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-16
Filing date: 1989-01-16
Publication date: 1989-08-16

Abstract

The utility model relates to a lifting device for carrying goods, which can be used for conveying the goods with different sizes. The utility model comprises frames, universal wheels, and a lifting device; the frame comprises an upper beam, a middle beam, a lower beam, and two brake handles. The lifting device is provided between the middle beam and a lower beam for making a threaded shaft rotate via toothed wheels. Thus traveling nuts and the shovels of the goods can be driven for making the shovels of the goods lift and lower; the purposes of the goods loading and shipping can be implemented. The utility model has the advantages of small size, light weight, simple structure, convenient operation, and great load capacity, and two vehicles can be used simultaneously.

Description

Portable delivery fork

The utility model is a kind of liftable delivery handling machinery device.

At present, major part such as the fork truck that uses when carrying cargo or the loading fork truck of selling on market, go-cart is four-wheel-type, jacking system is gear winding type or hydraulic driven, or come the lifting goods, carry cargo by transmission devices such as hoist, pulleys with steel rope, there are following 2 deficiencies in the loading fork truck of this structure: 1. lifting device structure complexity, parts are many, thereby cause the cost height, complex manufacturing, in addition because driving system is taked steel rope, the phenomenon that fractures can appear damaging in long-time use, and produces safety hazard; 2. prior art is four-wheel, during use measurement of cargo, weight are had certain limitation, otherwise goods is excessive, because of center of gravity can not deliver in the carrying scope of dolly, and uses, deposits equal inconvenience.

The purpose of this utility model is to overcome the deficiency of existing fork truck, go-cart existence, provides a kind of volume two-wheeled fork truck little, simple in structure, and jacking system is to make the threaded shaft rotation by shaking handgrip by gear, thereby the drive traveling nut makes the lifting of goods product.Though this fork truck volume is little, load-carrying is big, and the safety factor height is deposited conveniently.

Characteristics of the present utility model are that it mainly is made up of vehicle frame (5), cardan wheel (7) and jacking system, vehicle frame has three crossbeams in upper, middle and lower, two handgrips, cardan wheel (7) is welded on vehicle frame (5) base cross members both sides, and a lifting goods device is installed between intermediate transverse girder (13) and the base cross members (14); Jacking system is made up of handle (2), handle support (3), fixed type bearing (4) and (6) (or adopting anchor shaft), gear (8), (9) and threaded shaft (10), traveling nut (11); Threaded shaft (10) upper end is fixed on the crossbeam (13) with anchor shaft (4), the lower end is fixed on the bottom girder (14) with fixed type bearing (6), gear (8) links to each other with handle (2), and gear (9) links to each other with screw thread bearing upper end, and gear (8) links to each other with (9) interlock.In addition, goods shovel (12) is welded on the traveling nut (11), some fins is arranged in case goods slips out at the edge of goods shovel (12), and handle support (3) is fixed on the crossbeam (13), on put the beams in place (15) fixator pins (16) is arranged.

The utility model in use, the action of jacking system be achieved in that shake handgrip by gear (8) driven gear (9) thus make threaded shaft rotation drive traveling nut (11) and (12) rise and fall of goods shovel.If crank is L, gear (8) number of teeth is Z ₁, gear (9) number of teeth is Z ₂, radius of fillet is R, and loadage is P, and α is the angle of threaded shaft screw thread, and μ is a friction coefficient, its rough formula is:

F＝ (Z ₁·R·P)/(Z ₂·L) （Sinα＋μCosα）

So in use, only need there be 3～5 percent power of weight just can lift goods, because the bearing force and the horizontal bearing capacity of dolly of goods shovel so goods is fixed naturally, shaking phenomenon can not occur; Because the drag effect of threaded shaft and traveling nut, goods can automatic lowerings yet; When lade, use two dollies, be placed on the goods both sides respectively and use, can use separately as goods is small and light.

The fork truck volume of the utility model structure is little, in light weight, simple in structure, and load-carrying is big, deposits conveniently, uses freely, in addition owing to using separately and two uses simultaneously, so the goods of any type shape can be carried.

Description of drawings and embodiment:

(1) is handgrip among the figure, and (2) are handles, and (3) are the handle supports, (4), (6) are fixed type bearings, (5) be vehicle frame, (7) are cardan wheels, and (8), (9) are that gear, (10) are threaded shafts, (11) be traveling nut, (12) be the goods shovel, (13) are intermediate transverse girders, and (14) are bottom girders, (15) be to put the beams in place, (16) are fixator pins.The utility model in use, goods is placed on goods shovel go up after, shake handgrip gear rotated, rotate thereby drive threaded shaft, traveling nut is rotated up and down drives about the goods shovel; The fork truck wheel is a cardan wheel, can arbitrarily rotate during carrying.In addition, if the goods of carrying is the material of sheet steel and so on, can be temporarily fixed on the fixator pins on the dolly crossbeam of goods both sides with an iron pipe.

The fork truck of the utility model structure is that two identical dollies share, so can carry the goods of weight size, various shapes, because its is simple in structure, volume is little, is convenient to produce, use and deposit, and is applicable to the handling operation.

Claims

1, a kind of portable delivery fork truck, form by vehicle frame, goods shovel, wheel, handlebar, goods elevating gear, it is characterized in that vehicle frame (5) two bottom sides respectively welds a cardan wheel (7), between vehicle frame bottom girder (14) and middle crossbeam (13), a lifting goods device is installed.

2, portable delivery fork truck according to claim 1 is characterized in that jacking system is made up of handle (2), handle support (3), fixed type bearing (4), (6), gear (8), (9) and threaded shaft (10), traveling nut (11).

3, portable delivery fork truck according to claim 1 and 2, it is characterized in that threaded shaft (10) upper end is fixed on the crossbeam (13) with fixed type bearing (4), the lower end is fixed on the bottom girder (14) with fixed type bearing (6), gear (8) links to each other with handle (2), gear (9) links to each other with the threaded shaft upper end, and gear (8) links to each other with (9) interlock.

4, portable delivery fork truck according to claim 1 is characterized in that goods shovel (12) is welded on the traveling nut (11), and handle support (3) is fixed on the crossbeam (13).