CN218858463U - Foot-operated atmospheric pressure lift transportation platform truck - Google Patents

Abstract

The invention discloses a pedal type pneumatic lifting transport platform truck which comprises a pneumatic lifting mechanism, a cylinder, a pedal type pneumatic cylinder and a working platform.

Description

Foot-operated atmospheric pressure lift transportation platform truck

Technical Field

The invention relates to a pedal type pneumatic lifting transport platform truck, belonging to lifting equipment.

Background

After the agricultural products are boxed, the boxes need to be loaded onto trucks from an orchard or farm, and the trucks are unloaded after reaching the destination. This process allows the use of conveyor belts for large numbers of boxed and unloaded vehicles. For small and medium sizes, especially for the loading and unloading of only one small truck, the cost of the conveyer belt is too high, and the conveyer belt is not easy to carry; if the transportation is carried by manpower, a large amount of labor is needed, the time and the labor are consumed, and the problem can be solved by only needing one lifting transportation platform car. The common small handcart has no lifting function, is difficult to load and unload, and most of the small trolleys with the lifting function are not easy to carry and can work by a power supply.

Disclosure of Invention

Aiming at the defects, the invention provides a pedal type pneumatic lifting transport platform truck, which has the characteristics of portability, small occupied space when being folded and convenience in lifting aiming at the loading and unloading processes of a small amount of fruit boxes or vegetable boxes, and solves the problems of time and labor waste and large labor requirement when the small amount of fruit boxes or vegetable boxes are loaded and unloaded to a certain extent.

The invention discloses a pedal type pneumatic lifting transport platform truck, which comprises one-way casters, a plurality of three-section telescopic parts, a gas pipe, a bracket, a working platform, a hand push rod, a pneumatic pump, a bottom plate, universal casters, a brake pad, a pedal plate and a gas valve, wherein the three-section telescopic parts are arranged on the bottom plate; the walking push rod is connected with the bottom plate, the support fixes the pedal plate, and the universal caster and the one-way caster are connected with the bottom plate; the three-section telescopic piece comprises a bottom pipe, a middle pipe and a top rod, and the bottom pipe, the middle pipe and the top rod are sequentially connected; the interiors of the three telescopic parts are communicated with the air pump through air pipes; the tail ends of the three telescopic parts are connected with a working platform; the pedal is connected with the pneumatic pump so that an operator can control the pneumatic pump to transmit air to the three-section telescopic parts through the pedal to enable the three-section telescopic parts to extend, and then the working platform is driven to rise.

Therefore, the invention aims at the loading and unloading process of the fruit box or the vegetable box with small quantity of middle boxes. The lifting platform is composed of a lifting mechanism and a motor or a cylinder. This lift transportation platform truck utilizes vapour-pressure type elevating system, cylinder, foot-operated pneumatic cylinder and work platform to constitute, through the running-board of constantly trampling foot-operated pneumatic cylinder, atmospheric pressure makes the plunger of pneumatic cylinder stretch out to make work platform rise. The air valve is opened, and the working platform can descend by the dead weight.

The invention has the beneficial effects that: the fruit box lifting device has the characteristics of convenience in carrying, small occupied space when being folded and convenience in lifting, and solves the problems that a small amount of fruit boxes or vegetable boxes are loaded and unloaded, time and labor are wasted, and a large amount of labor is required to a certain extent.

Drawings

Fig. 1 is a front view of a pedal type pneumatic lifting transport platform truck according to the present invention.

Fig. 2 is a top view of the pedal type pneumatic lifting transporting platform truck according to the present invention.

Fig. 3 is a left side view of the structure of the pedal type pneumatic lifting transport platform truck of the present invention.

Fig. 4 is a half-sectional view of three sections of expansion pieces in the pedal type pneumatic lifting transport platform truck.

In the figure: 1-one-way caster wheel, 2-three-section telescopic parts, 2-1-bottom tube, 2-2-middle tube, 2-3-ejector rod, 2-4-thread A, 2-5-thread B, 2-6-O-shaped sealing ring A, 2-7-O-shaped sealing ring B, 2-8-O-shaped sealing ring C, 2-9-O-shaped sealing ring D, 2-10-air pipe hole, 3-air pipe, 4-binding belt, 5-support, 6-working platform, 7-hand push rod, 8-pneumatic pump, 9-bottom plate, 10-universal caster wheel, 11-brake pad, 12-pedal plate and 13-air valve.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings. \ A

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: a pedal type pneumatic lifting transport platform car comprises one-way casters 1, three-section telescopic parts 2, an air pipe 3, a binding belt 4, a support 5, a working platform 6, a hand push rod 7, a pneumatic pump 8, a bottom plate 9, universal casters 10, a brake pad 11, a pedal plate 12 and an air valve 13. The three-section telescopic part 2 comprises a bottom pipe 2-1, a middle pipe 2-2, a top rod 2-3, a thread A2-4, a thread B2-5, an O-shaped sealing ring A2-6, an O-shaped sealing ring B2-7, an O-shaped sealing ring C2-8, an O-shaped sealing ring D2-9 and an air pipe hole 2-10. Wherein, all the O-shaped sealing rings ensure the sealing performance when the bottom tube 2-1 and the middle tube 2-2 move up and down; the pedal 12 comprises a pedal for pedaling and a rod connected to the frame 5 and having a distal end connected to the air pressure pump 8, the rod being hinged to the frame 5 and being rotatable relative to the frame 5 (see fig. 1, the axis of rotation being perpendicular to the drawing). And a torsion spring is arranged between the rod piece and the bracket 5, and when the pedal is stepped down, the torsion spring can enable the pedal to automatically reset upwards so as to be stepped down next time. In the preferred embodiment, the telescopic connection between the connecting bracket 5 and the pneumatic pump 8 is a conventional telescopic connection rod, such as a rod inserted into another rod, and the two rods can move relative to each other. First, the lifting of the lifting platform is achieved by the telescopic movement of the three-section telescopic member 2. The one-way caster wheel 1 and the universal caster wheel 10 are fixed on a bottom plate 9 through bolts, the pneumatic pump 8 is fixed on the bottom plate 9 through a binding band 4, the hand push rod 7 is fixedly connected with the bottom plate 9 through welding, the bottom of a bottom pipe 2-1 of the three-section telescopic part 2 is provided with an external thread to be connected with a threaded hole on the bottom plate 9, the top of a top pipe 2-3 of the three-section telescopic part 2 is provided with an external thread to be connected with a threaded hole on the working platform 6, the pneumatic pump 8 is provided with four air holes to be respectively connected with air pipe holes 2-10 of the four three-section telescopic part 2 through pipelines, the support 5 is fixed on the pneumatic pump 8, the support 5 is hinged with a pedal plate 12, and the pedal plate 12 is hinged with a piston rod of the pneumatic pump 8. The pedal 12 and the pneumatic pump 8 are connected so that an operator can control the pneumatic pump 8 to deliver air to the three-section telescopic elements 2 through the pedal 12 so that the three-section telescopic elements 2 can extend and further drive the working platform 6 to rise. Therefore, the pedal type pneumatic pump is the same as the water pumping well mechanism principle. When the working platform 6 needs to be lifted, the pedal 12 is continuously stepped on. Air is continuously sent into the three-section telescopic part 2 through a pneumatic pump 8 and an air pipe 3, so that the three-section telescopic part 2 is stretched, wherein the air pipe 3 comprises a gas one-way valve which is manually switched; when unloading, the air valve 13 and the air one-way valve in the air pipe 3 are opened, and the three-section telescopic piece 2 is compressed under the action of gravity, so that the three-section telescopic piece 2 is contracted. So that the working platform 6 will rise or fall to play a role of lifting goods.

In addition, the connection mode of three-section telescopic part 2 is: the middle pipe 2-2 is nested in the bottom pipe 2-1, an O-shaped sealing ring A2-6 and an O-shaped sealing ring D2-9 are arranged in the middle pipe for sealing, the ejector rod 2-3 is nested in the middle pipe 2-2, and an O-shaped sealing ring B2-7 and an O-shaped sealing ring C2-8 are arranged in the middle pipe for sealing. The universal caster 10 is provided with a brake pad 11, so that the lifting platform can not move when the goods are transported. This lift transportation platform truck has that portable easily carries, occupies the space when packing up less, and goes up and down convenient characteristics, has solved to a certain extent in a small amount of fruit casees or vegetable box dress, the problem that the unloading is wasted time and energy and need a large amount of labours.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a foot-operated atmospheric pressure lift transport platform car which characterized in that: comprises a one-way caster (1), a plurality of three-section telescopic parts (2), an air pipe (3), a bracket (5), a working platform (6), a hand push rod (7), a pneumatic pump (8), a bottom plate (9), a universal caster (10), a brake pad (11), a pedal (12) and an air valve (13); the walking push rod (7) is connected with the bottom plate (9), the support (5) fixes the pedal (12), and the universal caster (10) and the one-way caster (1) are connected on the bottom plate (9); the three-section telescopic part (2) comprises a bottom pipe (2-1), a middle pipe (2-2) and a top rod (2-3), wherein the bottom pipe (2-1), the middle pipe (2-2) and the top rod (2-3) are sequentially connected; the interiors of the three sections of telescopic pieces (2) are communicated with each other through an air pipe (3) and an air pressure pump (8); the tail ends of the three telescopic parts (2) are connected with a working platform (6); the pedal (12) is connected with the pneumatic pump (8) so that an operator can control the pneumatic pump (8) to transmit air to the three-section telescopic parts (2) through the pedal (12) to enable the three-section telescopic parts (2) to extend, and then the working platform (6) is driven to rise.

2. The pedal type pneumatic lifting transport platform truck as claimed in claim 1, characterized in that the three-section expansion part (2) comprises a thread A (2-4), a thread B (2-5), an O-shaped sealing ring A (2-6), an O-shaped sealing ring B (2-7), an O-shaped sealing ring C (2-8), an O-shaped sealing ring D (2-9) and a gas pipe hole (2-10); wherein all the O-shaped sealing rings ensure the sealing performance when the bottom pipe (2-1) and the middle pipe (2-2) move up and down; the air pipe holes (2-10) are positioned on the bottom pipe (2-1), and the air pipe holes (2-10) are connected with the air pipe (3).

3. The pedal type air pressure lifting transport platform truck as claimed in claim 1, characterized in that threaded holes matched with the three-section telescopic pieces (2) are arranged below the working platform (6) and above the bottom plate (9).

4. A foot-operated pneumatic lifting transport platform cart according to claim 1, characterized in that the air tube (3) comprises a manually opened and closed air check valve.

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