Portable loading and unloading transport vehicle
Technical Field
The invention belongs to the field of logistics transportation machinery, and particularly relates to a portable loading and unloading transport vehicle.
Background
With the development and progress of social technology, particularly the development of logistics industry caused by online shopping, goods are required to be carried and transported in many occasions. The heavy goods and the large quantity of the goods can consume more physical energy of the transportation workers, so that the transportation equipment, namely the lifting carrier, is generated. The conventional lifting type carrying trolley in the market has hydraulic type, electric type and the like, the hydraulic type has higher production cost, the electric type has a complex structure and sometimes works unstably.
Disclosure of Invention
The invention aims to provide a portable loading and unloading transport vehicle, which aims to solve the problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A portable loading and unloading transport vehicle comprises an underframe, a first arc sleeve, a second arc sleeve, a third arc sleeve, a lifting frame and a sleeve retraction device, wherein the first arc sleeve, the second arc sleeve and the third arc sleeve are sequentially sleeved to form arc telescopic pipes, the two arc telescopic pipes are arranged on the underframe side by side, the lifting frame is arranged at one end of each arc telescopic pipe, the sleeve retraction device is arranged on the underframe at the other end of each arc telescopic pipe, and the sleeve retraction device is used for retracting the corresponding extending arc telescopic pipe.
The sleeve withdrawing device comprises a pedal, a driving gear, a driven gear, a transmission shaft and a steel rope, wherein the driving gear is arranged on one side of a bottom frame through a rotating shaft, the pedal is arranged at the end part of the rotating shaft, the transmission shaft is arranged on the bottom frame, the driven gear is arranged at one end of the transmission shaft and meshed with the driving gear, one end of the steel rope is fixed on the transmission shaft, and the other end of the steel rope is connected with the arc-shaped sleeve at the farthest end.
Further, a ratchet wheel is arranged at the other end of the transmission shaft, a ratchet wheel safety lock is arranged on the ratchet wheel and used for clamping the ratchet wheel, a movable pulley block is arranged in the arc-shaped sleeve at the most distal end, the movable pulley block comprises a first pulley and a second pulley, the first pulley is fixed on the inner wall of the arc-shaped sleeve, hooks are arranged at the upper end and the lower end of the second pulley, one end of a rope is fixed on the hooks above the second pulley and then bypasses the first pulley and the second pulley to be connected with a steel rope, and the steel rope penetrates through the rope connected to the movable pulley block from the inside of the three arc-shaped sleeves.
Further, the arc-shaped telescopic pipe is semicircular after being extended, one end of the arc-shaped telescopic pipe is fixed on the underframe, a sliding supporting rod is arranged between one end of the second arc-shaped sleeve and the underframe, one end of the sliding supporting rod is hinged with the underframe, and the other end of the sliding supporting rod is fixedly connected with the second arc-shaped sleeve.
Further, the inner side and the outer side of the second arc-shaped sleeve are respectively provided with a guide rail along the arc direction, the first arc-shaped sleeve is internally provided with a roller, the roller is clamped on the guide rail of the second arc-shaped sleeve, the outer side of the third arc-shaped sleeve is provided with a roller, and the roller is clamped on the guide rail of the second arc-shaped sleeve.
Further, the bottom of the chassis is provided with a plurality of wheels.
Compared with the prior art, the invention has the following technical effects:
the invention uses the matching of the triple arc sleeve structure and the pulley block structure, is efficient, convenient and labor-saving, and can lift heavy objects;
Simultaneously, the heavy objects can be put down and simultaneously extend forwards for a certain distance, so that the heavy objects can fall into the container.
The triple sleeve device is sleeved together and hung on the underframe, so that the occupied space can be reduced, and the purpose of portability is achieved.
The pedal is utilized for structural power input, and the ergonomics are fully considered, so that the whole machine is more humanized to operate and is convenient to operate. The pulley block is simple in structure, low in manufacturing cost, safe and good in use, meanwhile, the pulley block is a flexible device, convenient to install and use and high in working efficiency.
The design of the sliding support can be used for improving the rigidity of the whole machine when lifting heavy objects, and can slide when putting down noon, so that interference with a container can be avoided.
The invention changes different lifting frames to meet the occasion of transportation, thereby achieving the purposes of being applicable to multiple occasions, simple in operation and saving labor.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of the present invention;
Fig. 3 is a structural view of the folded structure of the present invention.
The bicycle comprises a bicycle wheel 1, a bicycle wheel 2, a chassis, a pedal 3, a driving gear 4, a driving gear 5, a driven gear 6, a transmission shaft 7, a ratchet safety lock 8, a steel rope 9, a first arc sleeve, a second arc sleeve 10, a sliding support rod 11, a third arc sleeve 12, a lifting frame 13.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
Referring to fig. 1 to 3, a portable loading and unloading transport vehicle comprises a chassis 2, a first arc-shaped sleeve 9, a second arc-shaped sleeve 10, a third arc-shaped sleeve 12, a lifting frame 13 and a sleeve retraction device, wherein the first arc-shaped sleeve 9, the second arc-shaped sleeve 10 and the third arc-shaped sleeve 12 are sequentially sleeved to form arc-shaped telescopic pipes, the two arc-shaped telescopic pipes are arranged on the chassis 2 side by side, the lifting frame 13 is arranged at one end of the arc-shaped telescopic pipes, the sleeve retraction device is arranged on the chassis 2 at the other end of the arc-shaped telescopic pipes, and the sleeve retraction device is used for retracting the elongated arc-shaped telescopic pipes.
The sleeve withdrawing device comprises pedals 3, a driving gear 4, a driven gear 5, a transmission shaft 6 and a steel rope 8, wherein the driving gear 4 is arranged on one side of the underframe 2 through a rotating shaft, the pedals 3 are arranged at the end part of the rotating shaft, the transmission shaft 6 is arranged on the underframe 2, the driven gear 5 is arranged at one end of the transmission shaft, the driven gear 5 is meshed with the driving gear 4, one end of the steel rope 8 is fixed on the transmission shaft, and the other end of the steel rope 8 is connected with the arc-shaped sleeve at the most distal end. The driving gear 4 is smaller than the driven gear.
The other end of the transmission shaft is provided with a ratchet wheel, the ratchet wheel is provided with a ratchet wheel safety lock 7 for clamping the ratchet wheel, a movable pulley block is arranged in the arc-shaped sleeve at the most distal end, the movable pulley block comprises a first pulley and a second pulley, the first pulley is fixed on the inner wall of the arc-shaped sleeve, hooks are arranged at the upper end and the lower end of the second pulley, one end of a rope is fixed on the hooks above the second pulley, then the rope bypasses the first pulley and the second pulley to be connected with a steel rope 8, and the steel rope 8 passes through the rope connected to the movable pulley block from the inside of the three arc-shaped sleeves.
The arc-shaped telescopic pipe is semicircular after being extended, one end of the arc-shaped telescopic pipe is fixed on the underframe 2, a sliding supporting rod 11 is arranged between one end of the second arc-shaped sleeve 10 and the underframe 2, one end of the sliding supporting rod 11 is hinged with the underframe 2, and the other end of the sliding supporting rod is fixedly connected with the second arc-shaped sleeve 10.
The inner side and the outer side of the second arc-shaped sleeve 10 are respectively provided with a guide rail along the arc direction, the first arc-shaped sleeve 9 is internally provided with a roller which is clamped on the guide rail of the second arc-shaped sleeve 10, the outer side of the third arc-shaped sleeve 12 is provided with a roller which is clamped on the guide rail of the second arc-shaped sleeve 10.
The bottom of the chassis 2 is provided with a number of wheels 1.
The trolley of the invention can save two thirds of force by utilizing the pulley block, and meanwhile, the steel rope is flexible, so that rigid friction can be avoided, the requirement of mechanical assembly is reduced, and the whole machine is easy to work.
The triple arc sleeve is matched with the pulley block to lift the weight, and meanwhile, the mechanism can reduce occupied space, so that the aim of portability is fulfilled.
The main purpose of the reduction gear set is to realize the effect of speed reduction and power saving, the spur gear transmission ratio is stable, the efficiency is higher, and the work is reliable.
The ratchet mechanism has the main functions of realizing self-locking in the noon rising process, thereby ensuring the safety and reliability of the mechanical mechanism, and simultaneously having simple structure, convenient manufacture and reliable movement.
The range of use is extended by changing the lifting frame or installing a different end.