Portable loading and unloading transport vehicle

Abstract

A portable loading and unloading transport vehicle comprises a chassis, a first arc-shaped sleeve, a second arc-shaped sleeve, a third arc-shaped sleeve, a lifting frame and a sleeve retracting device; the first arc-shaped sleeve, the second arc-shaped sleeve and the third arc-shaped sleeve are sequentially sleeved to form an arc-shaped telescopic tube, and the two arc-shaped telescopic tubes are arranged side by side on the chassis; the lifting frame is arranged at one end of the arc-shaped telescopic tube, and the other end of the arc-shaped telescopic tube is arranged on the chassis with a sleeve retracting device, and the sleeve retracting device is used to retract the extended arc-shaped telescopic tube. The triple sleeve device of the present invention can reduce the occupied space by being sleeved together and suspended on the chassis, thereby achieving the purpose of portability.

Description

Technical Field

[0001] The invention belongs to the field of logistics and transportation machinery, and in particular relates to a portable loading and unloading transportation vehicle. Background Art

[0002] With the development of social science and technology, especially the development of logistics industry caused by online shopping, the handling and transportation of goods are needed in many occasions. However, the heavy and large quantity of goods consume a lot of physical energy of the transport workers, so a kind of transportation equipment, namely lifting transporter, has emerged. Common lifting transporters on the market now include hydraulic and electric ones, etc. The production cost of hydraulic ones is relatively high, and the structure of electric ones is complex and sometimes unstable. Summary of the invention

[0003] The object of the present invention is to provide a portable loading and unloading transport vehicle to solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A portable loading and unloading transport vehicle comprises a chassis, a first arc-shaped sleeve, a second arc-shaped sleeve, a third arc-shaped sleeve, a lifting frame and a sleeve retracting device; the first arc-shaped sleeve, the second arc-shaped sleeve and the third arc-shaped sleeve are sequentially sleeved to form an arc-shaped telescopic tube, and the two arc-shaped telescopic tubes are arranged side by side on the chassis; the lifting frame is arranged at one end of the arc-shaped telescopic tube, and the chassis at the other end of the arc-shaped telescopic tube is provided with a sleeve retracting device, and the sleeve retracting device is used to retract the extended arc-shaped telescopic tube.

[0006] Furthermore, the sleeve retracting device includes a pedal, a driving gear, a driven gear, a transmission shaft and a steel rope; the driving gear is installed on one side of the base frame through a rotating shaft, a pedal is provided at the end of the rotating shaft, a transmission shaft is provided on the base frame, a driven gear is provided at one end of the transmission shaft, the driven gear is meshed with the driving gear, one end of the steel rope is fixed on the transmission shaft, and the other end is connected to the farthest arc sleeve.

[0007] Furthermore, a ratchet is provided at the other end of the transmission shaft, and a ratchet safety lock is provided on the ratchet to clamp the ratchet; a movable pulley group is provided inside the arc-shaped sleeve at the farthest end, and the movable pulley group includes a first pulley and a second pulley, the first pulley is fixed on the inner wall of the arc-shaped sleeve, and hooks are provided at the upper and lower ends of the second pulley, one end of the rope is fixed on the hook above the second pulley, and then passes around the first pulley and the second pulley to be connected to the steel rope; the steel rope passes through the inside of the three arc-shaped sleeves and is connected to the rope of the movable pulley group.

[0008] Furthermore, the arc-shaped telescopic tube is semicircular after being extended; one end of the arc-shaped telescopic tube is fixed on the base frame, a sliding support rod is provided between one end of the second arc-shaped sleeve and the base frame, one end of the sliding support rod is hinged to the base frame; the other end is fixedly connected to the second arc-shaped sleeve.

[0009] Furthermore, guide rails are arranged on the inner and outer sides of the second arc-shaped sleeve along the arc direction, rollers are arranged in the first arc-shaped sleeve, and the rollers are clamped on the guide rails of the second arc-shaped sleeve; rollers are arranged on the outer side of the third arc-shaped sleeve, and the rollers are clamped on the guide rails of the second arc-shaped sleeve.

[0010] Furthermore, a plurality of wheels are arranged at the bottom of the chassis.

[0011] Compared with the prior art, this invention has the following technical effects:

[0012] The present invention uses a triple arc-shaped sleeve structure and a pulley block structure to efficiently, conveniently and labor-savingly lift heavy objects.

[0013] At the same time, when the heavy objects are lowered, they will extend forward a certain distance and fall into the interior of the cargo box.

[0014] The triple sleeve device of the present invention can reduce the occupied space by being sleeved together and suspended on the bottom frame, thereby achieving the purpose of portability.

[0015] The power input of the present invention is made by pedals, which fully considers ergonomics, making the whole machine more humane and easy to operate. The pulley block has a simple structure, low cost, safety and ease of use. At the same time, the pulley block is a flexible device, which is easy to install and use and has high working efficiency.

[0016] The design of the sliding support of the present invention can be used to improve the rigidity of the whole machine when lifting heavy objects, and will not interfere with the cargo box when putting down the cargo.

[0017] The invention replaces different lifting frames to meet the transportation occasions, thereby achieving the purpose of being applicable to multiple occasions, simple to operate and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a side view of the present invention;

[0020] Figure 3 This is a structural diagram of the present invention after folding.

[0021] Among them: 1. wheel; 2. chassis; 3. pedal; 4. driving gear; 5. driven gear; 6. transmission shaft; 7. ratchet safety lock; 8. steel rope; 9. first arc-shaped sleeve; 10. second arc-shaped sleeve; 11. sliding support rod; 12. third arc-shaped sleeve; 13. lifting frame. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings:

[0023] See also Figures 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 retracting device; the first arc-shaped sleeve 9, the second arc-shaped sleeve 10 and the third arc-shaped sleeve 12 are sequentially sleeved to form an arc-shaped telescopic tube, and the two arc-shaped telescopic tubes are arranged side by side on the chassis 2; the lifting frame 13 is arranged at one end of the arc-shaped telescopic tube, and the other end of the arc-shaped telescopic tube is provided on the chassis 2 with a sleeve retracting device, and the sleeve retracting device is used to retract the extended arc-shaped telescopic tube.

[0024] The casing retracting device includes a pedal 3, a driving gear 4, a driven gear 5, a transmission shaft 6 and a steel rope 8; the driving gear 4 is installed on one side of the base frame 2 through a rotating shaft, the end of the rotating shaft is provided with a pedal 3, the base frame 2 is provided with a transmission shaft 6, one end of the transmission shaft is provided with a driven gear 5, 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 is connected to the arc casing at the farthest end. The driving gear 4 is smaller than the driven gear.

[0025] A ratchet is provided at the other end of the transmission shaft, and a ratchet safety lock 7 is provided on the ratchet for clamping the ratchet; a movable pulley group is provided inside the arc-shaped sleeve at the farthest end, and the movable pulley group includes a first pulley and a second pulley, the first pulley is fixed on the inner wall of the arc-shaped sleeve, and hooks are provided at the upper and lower ends of the second pulley, one end of the rope is fixed on the hook above the second pulley, and then passes around the first pulley and the second pulley to connect with the steel rope 8; the steel rope 8 passes through the three arc-shaped sleeves and is connected to the rope of the movable pulley group.

[0026] The arc-shaped telescopic tube is semicircular after being extended; one end of the arc-shaped telescopic tube is fixed on the base frame 2, a sliding support rod 11 is provided between one end of the second arc-shaped sleeve 10 and the base frame 2, one end of the sliding support rod 11 is hinged to the base frame 2; the other end is fixedly connected to the second arc-shaped sleeve 10.

[0027] The second arc sleeve 10 is provided with guide rails along the arc direction on the inner and outer sides. The first arc sleeve 9 is provided with rollers, which are clamped on the guide rails of the second arc sleeve 10 . The third arc sleeve 12 is provided with rollers on the outer side, which are clamped on the guide rails of the second arc sleeve 10 .

[0028] A plurality of wheels 1 are arranged at the bottom of the chassis 2 .

[0029] The trolley of the present invention utilizes a pulley block to save two-thirds of the force, and the steel rope is flexible, which can avoid rigid friction, reduce the requirements for mechanical assembly, and make the whole machine easy to work.

[0030] The triple arc-shaped sleeve is utilized to cooperate with the pulley block to lift heavy objects. At the same time, this mechanism can reduce the occupied space and achieve the purpose of being easy to carry.

[0031] The main purpose of the reduction gear set is to achieve the effect of speed reduction and labor saving. The spur gear transmission has a stable transmission ratio, high efficiency and reliable operation.

[0032] The main function of the ratchet mechanism is to achieve self-locking during the rising process at noon, thereby ensuring the safety and reliability of the mechanical mechanism. At the same time, it has a simple structure, easy manufacturing and reliable movement.

[0033] The range of use can be extended by replacing the lifting frame or installing different ends.

Claims

1. A portable loading and unloading transport vehicle, characterized in that: The invention comprises a base frame (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 retracting device; the first arc-shaped sleeve (9), the second arc-shaped sleeve (10) and the third arc-shaped sleeve (12) are sleeved in sequence to form an arc-shaped telescopic tube, and the two arc-shaped telescopic tubes are arranged side by side on the base frame (2); the lifting frame (13) is arranged at one end of the arc-shaped telescopic tube, and the base frame (2) at the other end of the arc-shaped telescopic tube is provided with a sleeve retracting device, and the sleeve retracting device is used to retract the extended arc-shaped telescopic tube; The casing retracting device comprises a pedal (3), a driving gear (4), a driven gear (5), a transmission shaft (6) and a steel rope (8); the driving gear (4) is installed on one side of a base frame (2) through a rotating shaft, a pedal (3) is arranged at the end of the rotating shaft, a transmission shaft (6) is arranged on the base frame (2), a 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 is connected to the arc-shaped casing at the farthest end; A ratchet is arranged at the other end of the transmission shaft, and a ratchet safety lock (7) is arranged on the ratchet for locking the ratchet; a movable pulley group is arranged inside the arc-shaped sleeve at the farthest end, and the movable pulley group includes a first pulley and a second pulley, the first pulley is fixed on the inner wall of the arc-shaped sleeve, and hooks are arranged at both the upper and lower ends of the second pulley, and one end of the rope is fixed on the hook above the second pulley, and then passes around the first pulley and the second pulley to connect with the steel rope (8); the steel rope (8) passes through the inside of the three arc-shaped sleeves and is connected to the rope of the movable pulley group; The arc-shaped telescopic tube is semicircular after being extended; one end of the arc-shaped telescopic tube is fixed on the base frame (2); a sliding support rod (11) is provided between one end of the second arc-shaped sleeve (10) and the base frame (2); one end of the sliding support rod (11) is hinged to the base frame (2); and the other end is fixedly connected to the second arc-shaped sleeve (10); The second arc-shaped sleeve (10) is provided with guide rails on the inner and outer sides along the arc direction; a roller is provided inside the first arc-shaped sleeve (9), and the roller is clamped on the guide rail of the second arc-shaped sleeve (10); and a roller is provided on the outer side of the third arc-shaped sleeve (12), and the roller is clamped on the guide rail of the second arc-shaped sleeve (10).

2. A portable loading and unloading transport vehicle according to claim 1, characterized in that: A plurality of wheels (1) are arranged at the bottom of the base frame (2).

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