CN113860219B

CN113860219B - Vehicle-mounted cargo loading and unloading forklift and working method thereof

Info

Publication number: CN113860219B
Application number: CN202111281185.4A
Authority: CN
Inventors: 贾宪; 卫海亮; 张骥; 李伟; 陈江; 许岳峰
Original assignee: China Construction Eighth Bureau Development and Construction Co Ltd
Current assignee: China Construction Eighth Bureau Development and Construction Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2023-03-24
Anticipated expiration: 2041-11-01
Also published as: CN113860219A

Abstract

The invention provides a vehicle-mounted cargo loading and unloading forklift and a working method thereof, belonging to the technical field of forklifts, wherein the device comprises a main frame, a movable supporting mechanism and a lifting mechanism, the main frame is of a door-shaped structure, the top of a base is provided with a control box, a storage battery, a control circuit board and a transmission motor are arranged in the control box, the center of the inner side of the main frame is vertically provided with a transmission lead screw, the front side of the main frame is symmetrically provided with two groups of slide rails, the movable supporting mechanism comprises two groups of supporting rods and two groups of connecting rods, the two ends of the connecting rods are respectively and fixedly connected with the supporting rods, the lifting mechanism comprises a lifting plate and fork arms, the lifting plate is vertically arranged at the front side of the main frame, the fork arms are provided with two groups and are symmetrically distributed at one side of the lifting plate, and the device solves the technical problems that the conventional vehicle-mounted forklift is heavy and inflexible in use, so that the structure of the vehicle-mounted cargo loading and unloading forklift is simple, the operation is flexible, the manpower is saved, and the cargo transportation efficiency is improved.

Description

Vehicle-mounted cargo loading and unloading forklift and working method thereof

Technical Field

The invention belongs to the technical field of forklifts, and particularly relates to a vehicle-mounted cargo loading and unloading forklift and a working method thereof.

Background

In recent years, the development of the logistics transportation industry is witnessed, and the whole logistics loading and unloading link is more mechanized, green and intelligent. The forklift plays an important role in a logistics system, is a main force in the material handling equipment, can effectively reduce the labor intensity of workers and improves the operation efficiency. However, in actual logistics transportation application, part of the goods receiving points are not provided with a special forklift for loading and unloading goods, manual carrying is still needed, and certain influence is caused on logistics efficiency, so that the configuration of the forklift is very necessary.

Disclosure of Invention

The embodiment of the invention provides a vehicle-mounted cargo loading and unloading forklift and a working method thereof, aiming at solving the technical problems of heavy weight and inflexible use of the conventional vehicle-mounted forklift, so that the vehicle-mounted forklift is simple in structure, flexible to operate, labor-saving, small in occupied space and capable of improving cargo transportation efficiency.

In view of the above problems, the technical solution proposed by the present invention is:

the invention provides a vehicle-mounted cargo truck, comprising:

the main frame, the main frame is door font structure, the bottom fixedly connected with base of main frame, the left and right sides symmetry of base is provided with the bearing slot, the left and right sides symmetry of main frame is provided with the installation ear, the bottom of installation ear is provided with the universal wheel, the top of base is provided with the control box, the inside of control box is provided with battery, control circuit board and driving motor, driving motor's input with control circuit board's output electric connection, the inboard center of main frame is provided with drive lead screw perpendicularly, the front side symmetry of main frame is provided with two sets of slide rails, the slide rail with main frame bolted connection, the main frame is kept away from one side symmetry of slide rail is provided with two sets of first in command, the below of first in command is provided with the second in command, the main frame is close to the top of one side of first in command is provided with the protection network.

The movable supporting mechanism comprises two groups of supporting rods and connecting pieces, the two groups of supporting rods are arranged in the socket grooves respectively, the supporting rods are in clearance fit with the socket grooves, and two ends of the connecting pieces are fixedly connected with the supporting rods respectively.

The lifting mechanism comprises a lifting plate and fork arms, the lifting plate is vertically arranged on the front side of the main frame, the fork arms are arranged in two groups and symmetrically distributed on one side, far away from the main frame, of the lifting plate _。

As a preferred technical solution of the present invention, an output end of the transmission motor is fixedly connected with a worm wheel, one side of the worm wheel is provided with a worm, the worm and the worm wheel are engaged with each other, one end of the worm is provided with a first bearing block, the first bearing block is fixedly connected with the bottom of the control box, the other end of the worm is fixedly connected with the transmission lead screw, the other end of the transmission lead screw penetrates through a top plate of the control box and is provided with a second bearing block, and the second bearing block is fixedly connected with the top of the main frame.

As a preferable technical scheme of the invention, one side of the connecting sheet is provided with a third handle, one end of the supporting rod, which is far away from the connecting sheet, is provided with a slot, a supporting wheel is arranged in the slot, and the lowest point of the supporting wheel and the lowest point of the universal wheel are positioned on the same horizontal line.

As a preferable technical scheme of the invention, the bottom of the supporting rod is equidistantly distributed with rollers, and the outer surfaces of the rollers are in sliding contact with the bottom of the socket slot.

As a preferred technical scheme of the present invention, reinforcing ribs, sliders and transmission seats are disposed on one side of the lifting plate close to the main frame, the reinforcing ribs and the lifting plate are integrally formed, the four sets of sliders are symmetrically distributed at four corners of the lifting plate and are connected with the lifting plate by bolts, the sliders are disposed on one side of the slide rails, the sliders are in clearance fit with the slide rails, and the transmission seats are connected with the reinforcing ribs by bolts.

As a preferred technical scheme of the present invention, a transmission nut is embedded in the transmission seat, the transmission nut is in threaded fit with the transmission lead screw, a weight sensor is arranged on one side of the transmission nut, the other side of the weight sensor is abutted against the transmission seat, and an output end of the weight sensor is electrically connected with the control circuit board.

As a preferred technical scheme of the invention, two groups of connecting seats are symmetrically arranged on one side of the jacking plate close to the fork arm, the fork arm is in an L-shaped structure, an avoiding groove is formed in the top of the fork arm, a guide part is arranged at one end of the fork arm far away from the jacking plate, a buffering convex point is arranged on the front side of the guide part, connecting lugs are symmetrically arranged at the other end of the fork arm, a connecting pin is arranged on one side of each connecting lug, a fixing nut is arranged at the other end of each connecting pin sequentially penetrates through the connecting lugs and the connecting seats, and one side of each fixing nut is abutted against one side of each connecting lug.

As a preferred technical solution of the present invention, a weight display is disposed on the top of the control box, an input end of the weight display is electrically connected to an output end of the control circuit board, an electric quantity display lamp is disposed on one side of the control box, the electric quantity display lamp is electrically connected to the storage battery, a charging connector is disposed below the electric quantity display lamp, an output end of the charging connector is electrically connected to an input end of the storage battery, and an output end of the storage battery is electrically connected to an input end of the control circuit board.

As a preferable technical scheme of the invention, a slot is arranged at the front side of the control box, a remote controller is placed in the slot, and the remote controller is connected with the input end of the control circuit board through a wireless signal.

On the other hand, the working method of the vehicle-mounted cargo truck comprises the following steps:

s1, loading cargos: a first hand is held to push a forklift to extend a fork arm into a pallet at the bottom of a cargo, a lifting button on a remote controller is pressed, a transmission motor drives a transmission screw rod to rotate through the matching of a worm gear and a worm, a transmission nut moves upwards along a thread, the fork arm is driven to lift upwards through a lifting plate, the fork arm drives the cargo to lift to a height higher than that of a wagon compartment and then stops, the forklift is manually pushed to move the cargo to the position above the edge of the compartment, a remote controller descending button is pressed, the transmission motor drives the transmission screw rod to rotate reversely, the fork arm moves downwards, and the cargo stops after being placed on a compartment plate of the compartment;

s2, forklift loading: continuously pressing a descending button, enabling a fork arm to abut against a carriage plate, enabling the fork arm to serve as a supporting component at the moment, enabling a main rack to move upwards, loosening the descending button after a universal wheel is separated from the ground, manually pulling a third handle outwards to slide a supporting rod out, enabling the end of the supporting rod not to exceed the front side face of the main rack, pressing the descending button again, enabling the main rack to move upwards continuously, loosening the descending button when the fork arm reaches the lowest point of the main rack, pushing the supporting rod inwards to enable the supporting wheel to be in contact with the carriage plate, then pressing a lifting button, enabling the fork arm to jack up the goods, enabling the carriage plate to be separated by a small distance, holding a second handle by hand to push a forklift into a carriage, enabling the goods to be placed at a proper position, and enabling the forklift to finish a loading action;

s3, unloading the forklift: when the truck moves to an unloading area, firstly moving goods to the edge of the carriage in the carriage, suspending the main frame outside the carriage, descending the fork arms to enable the fork arms to be abutted against the carriage plate, then pulling the third handle outwards to pull out the supporting rod, pressing the ascending button, keeping the fork arms still and enabling the main frame to move downwards as the main frame has no stress point, when the universal wheels are about to contact with the ground, loosening the button, pushing the third handle to enable the supporting rod to reset, pressing the ascending button again until the universal wheels and the supporting wheels are both contacted with the ground, and finishing unloading the truck;

s4, getting off the goods: and continuously pressing the lifting button, jacking the goods by the fork arms, leaving the carriage plate of the carriage, holding the first handle by a hand, pulling the forklift backwards, pressing the descending button after the goods leave the carriage, reducing the moving height of the goods, pushing the forklift to move to a specified area, and then, descending the fork arms to place the goods at a specified unloading point.

Compared with the prior art, the invention has the beneficial effects that:

(1) The vehicle-mounted loading, unloading and carrying device can get on and off the vehicle synchronously with goods, is high in portability, eliminates the influence that part of loading and unloading points are not provided with a forklift, and improves the goods efficiency;

(2) The device has simple and firm structure and flexible and labor-saving operation, is electrically driven, is automatically lifted into the carriage, reduces manual carrying and is convenient for cargo loading, unloading and transportation;

(3) The forklift occupies small area, does not occupy the cargo transportation space, and improves the transportation loading capacity.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

FIG. 1 is a schematic front side view of a truck-mounted cargo lift truck according to the present disclosure;

FIG. 2 is a rear side schematic view of a truck-mounted cargo lift truck according to the present disclosure;

FIG. 3 is a schematic structural diagram of the mainframe disclosed herein;

FIG. 4 is a schematic cross-sectional view of the control box of the present disclosure;

FIG. 5 is a schematic view of the bottom side of the movable support mechanism of the present disclosure;

FIG. 6 is a schematic front side view of the disclosed lift mechanism;

FIG. 7 is a rear side view of the disclosed lift mechanism;

FIG. 8 is a schematic cross-sectional view of the disclosed actuator mount;

FIG. 9 is a schematic flow chart of a method of operation of the truck-mounted cargo lift truck disclosed herein;

description of reference numerals: 100-a main frame; 101-a base; 1011-socket slot; 102-mounting ears; 1021-universal wheels; 103-a control box; 1031-storage battery; 1032-a control circuit board; 1033-a drive motor; 10331-a worm gear; 10332-worm; 10333-a first bearing seat; 1034-a weight display; 1035-electric quantity display light; 1036-charging connection port; 1037-slot; 1038-remote control; 104-a transmission screw rod; 1041-a second bearing block; 105-a slide rail; 106-a first handle; 107-a second handle; 108-a protective net; 200-a movable support mechanism; 201-support rods; 2011-slotting; 2012-support wheels; 2013-a roller; 202-connecting piece; 2021-a third handle; 300-a lifting mechanism; 301-a jacking plate; 3011-a stiffener; 3012-a slide block; 3013-a transmission seat; 3014-drive nut; 3015-a weight sensor; 3016-a connecting seat; 302-yoke; 3021-avoidance groove; 3022-a guide; 30221-buffer bumps; 3023-engaging lugs; 3024-connecting pin; 3025-fixing the nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

Referring to the attached drawings 1-8, the invention provides a technical scheme: a truck-mounted cargo truck includes a main frame 100, a movable support mechanism 200, and a lifting mechanism 300.

Referring to fig. 1-4, a main frame 100 is in a door-shaped structure, a base 101 is fixedly connected to the bottom of the main frame 100, the base 101 and the main frame 100 are connected to form a forklift as a whole to support various components, socket grooves 1011 are symmetrically formed in the left side and the right side of the base 101, mounting lugs 102 are symmetrically formed in the left side and the right side of the main frame 100, universal wheels 1021 are arranged at the bottoms of the mounting lugs 102, the universal wheels 1021 facilitate movement of the forklift and save labor, a control box 103 is arranged at the top of the base 101, a storage battery 1031, a control circuit board 1032 and a transmission motor 1033 are arranged inside the control box 103, the input end of the transmission motor 1033 is electrically connected with the output end of the control circuit board 1032, a transmission lead screw 104 is vertically arranged at the center of the inner side of the main frame 100, two sets of slide rails 105 are symmetrically arranged at the front side of the main frame 100, the slide rails 105 are bolted to the main frame 100, the slide rails 105 provide guidance for the lifting mechanism 300 and prevent deviation, a second set of the main frame 100, a second handle 106 is symmetrically arranged at the side far from the main frame 100, a first handle 106 and a second handle 107 and a push-pull handle 107 and a protection mechanism 108 for preventing goods handling protection function of the forklift from falling in the top of the forklift is arranged at the top of the main frame 100.

Referring to fig. 1-2 and 5, the movable supporting mechanism 200 includes two sets of supporting rods 201 and two sets of connecting pieces 202, the two sets of supporting rods 201 are respectively disposed inside the socket channels 1011, the supporting rods 201 are in clearance fit with the socket channels 1011, the supporting rods 201 can be pulled and slid in the socket channels 1011, so as to facilitate the on-board getting-on and getting-off operation of the forklift, two ends of the connecting pieces 202 are respectively fixedly connected with the supporting rods 201, and the connecting pieces 202 connect the left and right sets of supporting rods 201 into a whole, so that the two sets of supporting rods 201 move synchronously, thereby facilitating the operation.

Referring to fig. 1-2 and 6-8, the lifting mechanism 300 includes a lifting plate 301 and two fork arms 302, the lifting plate 301 is vertically disposed at the front side of the main frame 100, the fork arms 302 are disposed in two groups and symmetrically disposed at one side of the lifting plate 301 far away from the main frame 100, the fork arms 302 extend to the bottom of the cargo pallet, and the lifting plate 301 drives the fork arms 302 to move up and down, thereby realizing the transportation, loading and unloading of the cargo.

The embodiment of the invention is also realized by the following technical scheme.

In the embodiment of the present invention, an output end of the transmission motor 1033 is fixedly connected with a worm wheel 10331, one side of the worm wheel 10331 is provided with a worm 10332, the worm 10332 is engaged with the worm wheel 10331, one end of the worm 10332 is provided with a first bearing block 10333, the first bearing block 10333 is fixedly connected with the bottom of the control box 103, the other end of the worm 10332 is fixedly connected with the transmission screw 104, the other end of the transmission screw 104 penetrates through a top plate of the control box 103 and is provided with a second bearing block 1041, the second bearing block 1041 is fixedly connected with the top of the main frame 100, the transmission motor 1033 serves as a main transmission power transmission source, the transmission motor 1033 can realize forward and reverse rotation and drive the transmission screw 104 to rotate forward and reverse through the cooperation of the worm wheel 10331 and the worm 10332, and the transmission screw 104 and the worm 10332 are fixed on the main frame 100 through the first bearing block 10333 and the second bearing block 1041 respectively.

In the embodiment of the invention, one side of the connecting sheet 202 is provided with the third handle 2021, the third handle 2021 is convenient to hold the push-pull movable supporting mechanism 200, one end of the supporting rod 201, which is far away from the connecting sheet 202, is provided with the slot 2011, the supporting wheel 2012 is arranged inside the slot 2011, the lowest point of the supporting wheel 2012 and the lowest point of the universal wheel 1021 are on the same horizontal line, and the supporting wheel 2012 and the universal wheel 1021 together form a balance rolling supporting point, so that the forklift forms a stable structure and can push and pull goods stably for transportation.

In the embodiment of the invention, the rollers 2013 are distributed on the bottom of the support rod 201 in an equidistant array, the outer surface of each roller 2013 is in sliding contact with the bottom of the socket groove 1011, the contact area between the rollers 2013 and the bottom of the socket groove 1011 is reduced, friction is reduced, the support rod 201 is matched with the socket groove 1011 more smoothly, and an operator pushes and pulls the support rod 201 more conveniently in a labor-saving manner.

In the embodiment of the present invention, a reinforcing rib 3011, a slider 3012 and a driving seat 3013 are disposed on one side of the lifting plate 301 close to the main frame 100, the reinforcing rib 3011 and the lifting plate 301 are integrally formed, four sets of sliders 3012 are disposed and symmetrically disposed on four corners of the lifting plate 301 and are bolted to the lifting plate 301, the slider 3012 is disposed on one side of the slide rail 105, the slider 3012 is in clearance fit with the slide rail 105, the driving seat 3013 is bolted to the reinforcing rib 3011, the slider 3012 is matched with the slide rail 105 to fix the moving direction of the lifting plate 301, and four sets of sliders 3012 are disposed to make the movement of the lifting plate 301 more stable and prevent deviation.

In the embodiment of the invention, a transmission nut 3014 is embedded in a transmission seat 3013, the transmission nut 3014 is in threaded fit with the transmission screw 104, a weight sensor 3015 is arranged on one side of the transmission nut 3014, the other side of the weight sensor 3015 is abutted to the transmission seat 3013, the output end of the weight sensor 3015 is electrically connected with the control circuit board 1032, the transmission nut 3014 is in mutual fit with the transmission screw 104, when the transmission screw 104 rotates, the transmission nut 3014 displaces along the rotation direction along the thread direction, so that the transmission seat 3013 is connected with the lifting plate 301 to drive the whole lifting mechanism 300 to move up and down, the weight sensor 3015 realizes a self-weighing function, and after the lifting plate 301 bears a load, the transmission seat 3013 transmits the pressure to the weight sensor 3015.

In the embodiment of the invention, two groups of connecting seats 3016 are symmetrically arranged on one side of the lifting plate 301 close to the fork arm 302, the fork arm 302 is in an L-shaped structure, an avoiding groove 3021 is formed in the top of the fork arm 302, a guide part 3022 is arranged at one end of the fork arm 302 far from the lifting plate 301, a buffer bump 30221 is arranged on the front side of the guide part 3022, the guide part 3022 facilitates the end part of the fork arm 302 to extend into a tray at the bottom of a load, the buffer bump 30221 prevents the fork arm 302 from impacting the load, so as to play a role of buffering and shock absorption, a connecting lug 3023 is symmetrically arranged at the other end of the fork arm 302, a connecting pin 3024 is arranged on one side of the connecting lug 3023, a fixing nut 3025 is arranged after the other end of the connecting pin 3024 sequentially penetrates through the connecting lug 3023 and the connecting seat 3016, one side of the fixing nut 3025 abuts against one side of the connecting lug 3023, the fork arm 302 is connected with the lifting plate 301 through the connecting pin 3024, the connecting pin 3024 is fastened through the fixing nut 3025, so as to facilitate installation and maintenance, one end of the lifting plate 302 is connected with the lifting cylinder, when the lifting arm 302 is pushed out, the lifting arm 302, the lifting arm is pushed out, and the fork arm is pushed out in a tilting process, and the lifting cylinder, the lifting arm 302 can be pushed out.

In the embodiment of the present invention, a weight display 1034 is disposed on the top of the control box 103, an input end of the weight display 1034 is electrically connected to an output end of the control circuit board 1032, the weight sensor 3015 converts the received weight signal into an image signal through the control circuit board 1032 and sends the image signal to the middle-load-capacity display 1034 for displaying, so that an operator can conveniently and visually check the weight of the cargo, an electric quantity display lamp 1035 is disposed on one side of the control box 103, the electric quantity display lamp 1035 is electrically connected to the battery 1031, the electric quantity display lamp 1035 displays the electric quantity information of the battery 1031 in real time, so that the operator can conveniently judge the working state of the forklift, a charging connection port 1036 is disposed below the electric quantity display lamp 1035, an output end of the charging connection port 1036 is electrically connected to an input end of the battery 1031, an output end of the battery 1031 is electrically connected to an input end of the control circuit board 1032, the battery 1031 can be charged by connecting to an external power supply electric energy through the charging connection port 1036, and the device is clean and does not need to be filled with other hydraulic oil or gasoline.

In the embodiment of the present invention, a slot 1037 is disposed on the front side of the control box 103, a remote controller 1038 is disposed inside the slot 1037, the remote controller 1038 is in wireless signal connection with an input end of the control circuit board 1032, the remote controller 1038 is connected to the control circuit board 1032 through a wireless signal, and outputs an ascending or descending operation signal, the control circuit board 1032 controls the transmission motor 1033 to rotate forward and backward according to a corresponding signal, so as to drive the lifting mechanism 300 to operate up and down, the slot 1037 facilitates storage of the remote controller 1038, and loss of the remote controller 1038 is prevented.

Example two

Referring to fig. 9, an embodiment of the present invention further provides a working method of a vehicle-mounted forklift for loading and unloading goods, including the following steps:

s1, loading cargos: holding a first handle 106 by hand to push a forklift to extend a fork arm 302 into a pallet at the bottom of a cargo, pressing a lifting button on a remote controller 1038, driving a transmission screw rod 104 to rotate by a transmission motor 1033 through the matching of a worm wheel 10331 and a worm 10332, moving a transmission nut 3014 upwards along a thread, driving the fork arm 302 to lift upwards through a jacking plate 301, stopping after the fork arm 302 drives the cargo to lift to a height higher than that of a boxcar of the lorry, manually pushing the forklift to move the cargo to the position above the edge of the boxcar, pressing a descending button of the remote controller 1038, driving the transmission screw rod 104 to rotate backwards by the transmission motor 1033, moving the fork arm 302 downwards, and stopping after the cargo is placed on the boxcar plate of the boxcar;

s2, forklift loading: the descending button is continuously pressed, the fork arms 302 abut against a carriage plate, at the moment, the fork arms 302 serve as supporting components, the main frame 100 moves upwards, after the universal wheels 1021 are separated from the ground, the descending button is released, the third handles 2021 are manually pulled outwards to slide the supporting rods 201 out, the end portions of the supporting rods 201 do not exceed the front side face of the main frame 100, the descending button is pressed again, the main frame 100 continues to move upwards, when the fork arms 302 reach the lowest point of the main frame 100, the descending button is released, the supporting rods 201 are pushed inwards, the supporting wheels 2012 are in contact with the carriage plate, the ascending button is pressed again, the fork arms 302 jack up the goods, the goods are separated from the carriage plate by a small distance, the second handles 107 are held by hands to push the forklift into the carriage, the goods are placed at a proper position, and meanwhile the forklift finishes the getting on-up action;

s3, unloading the forklift: when the truck moves to an unloading area, firstly moving goods to the edge of the carriage in the carriage, enabling the main frame 100 to be suspended outside the carriage, descending the fork arm 302, enabling the fork arm 302 to be abutted against the carriage plate, pulling the third handle 2021 outwards, pulling out the supporting rod 201, pressing the ascending button, keeping the fork arm 302 still and enabling the main frame 100 to move downwards because the main frame 100 has no stress point, loosening the button when the universal wheel 1021 is about to be in contact with the ground, pushing the third handle 2021, enabling the supporting rod 201 to reset, pressing the ascending button again until the universal wheel 1021 and the supporting wheel 2012 are both in contact with the ground, and finishing unloading of the truck;

s4, getting off the goods: and when the lifting button is continuously pressed, the fork arm 302 jacks up the goods, the goods leave the carriage plate, the first handle 106 is held by hand, the forklift is pulled backwards, when the goods leave the carriage, the descending button is pressed, the moving height of the goods is reduced, the forklift is pushed to move to a specified area, and then the fork arm 302 is descended to place the goods at a specified unloading point.

It should be noted that the specific model specifications of the storage battery 1031, the control circuit board 1032, the transmission motor 1033, the weight display 1034, the electric quantity display lamp 1035, the remote controller 1038 and the weight sensor 3015 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, and therefore, detailed descriptions are omitted.

It should be noted that the power supply and the principle of the battery 1031, the control circuit board 1032, the transmission motor 1033, the weight display 1034, the electric quantity display lamp 1035, the remote controller 1038 and the weight sensor 3015 are clear to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an on-vehicle goods vehicle-mounted loading and unloading fork truck which characterized in that includes:

the main frame (100) is of a door-shaped structure, the bottom of the main frame (100) is fixedly connected with a base (101), the left side and the right side of the base (101) are symmetrically provided with bearing slots (1011), the left side and the right side of the main frame (100) are symmetrically provided with mounting lugs (102), the bottom of the mounting lugs (102) is provided with universal wheels (1021), the top of the base (101) is provided with a control box (103), a storage battery (1031), a control circuit board (1032) and a transmission motor (1033) are arranged inside the control box (103), the input end of the transmission motor (1033) is electrically connected with the output end of the control circuit board (1032), the center of the inner side of the main frame (100) is vertically provided with a transmission screw rod (104), the front side of the main frame (100) is symmetrically provided with two sets of sliding rails (105), the sliding rails (105) are connected with the main frame (100) through bolts, one side of the main frame (100) far away from the sliding rails (105) is symmetrically provided with a first set of a first set (106), the second handle (107) is arranged below the first handle (106), and one side of the main frame (100) close to the top of the protective net (108);

the movable supporting mechanism (200) comprises supporting rods (201) and connecting pieces (202), two groups of supporting rods (201) are arranged and are respectively arranged inside the socket (1011), the supporting rods (201) are in clearance fit with the socket (1011), and two ends of the connecting pieces (202) are respectively fixedly connected with the supporting rods (201);

elevating system (300), elevating system (300) include jacking board (301) and yoke (302), jacking board (301) set up perpendicularly in the front side of main frame (100), yoke (302) are provided with two sets ofly, and symmetric distribution in jacking board (301) keep away from one side of main frame (100).

2. A vehicle-mounted cargo loading and unloading forklift truck according to claim 1, wherein the output end of the transmission motor (1033) is fixedly connected with a worm wheel (10331), one side of the worm wheel (10331) is provided with a worm (10332), the worm (10332) and the worm wheel (10331) are engaged with each other, one end of the worm (10332) is provided with a first bearing seat (10333), the first bearing seat (10333) is fixedly connected with the bottom of the control box (103), the other end of the worm (10332) is fixedly connected with the transmission screw rod (104), the other end of the transmission screw rod (104) penetrates through the top plate of the control box (103) to be provided with a second bearing seat (1041), and the second bearing seat (1041) is fixedly connected with the top of the main frame (100).

3. A vehicle-mounted cargo forklift as defined in claim 2, wherein a third handle (2021) is disposed at one side of the connecting plate (202), a slot (2011) is disposed at one end of the supporting rod (201) away from the connecting plate (202), a supporting wheel (2012) is disposed inside the slot (2011), and a lowest point of the supporting wheel (2012) and a lowest point of the universal wheel (1021) are on the same horizontal line.

4. A truck-mounted cargo-loading forklift truck as claimed in claim 3, wherein said support rods (201) are equidistantly distributed with rollers (2013) on the bottom, and the outer surfaces of said rollers (2013) are in sliding contact with the bottoms of said sockets (1011).

5. The vehicle-mounted cargo loading and unloading forklift truck as claimed in claim 4, wherein reinforcing ribs (3011), sliders (3012) and transmission seats (3013) are arranged on one side, close to the main frame (100), of the jacking plate (301), the reinforcing ribs (3011) and the jacking plate (301) are integrally formed, the sliders (3012) are provided with four groups and symmetrically distributed at four corners of the jacking plate (301) and are connected with the jacking plate (301) through bolts, the sliders (3012) are arranged on one side of the sliding rails (105), the sliders (3012) are in clearance fit with the sliding rails (105), and the transmission seats (3013) are connected with the reinforcing ribs (3011) through bolts.

6. The vehicle-mounted cargo loading and unloading forklift truck according to claim 5, wherein a transmission nut (3014) is embedded in the transmission seat (3013), the transmission nut (3014) is in threaded fit with the transmission screw rod (104), a weight sensor (3015) is arranged on one side of the transmission nut (3014), the other side of the weight sensor (3015) is abutted to the transmission seat (3013), and the output end of the weight sensor (3015) is electrically connected to the control circuit board (1032).

7. A vehicle-mounted cargo forklift as defined in claim 6, wherein the jacking plate (301) is close to one side of the fork arm (302) and is symmetrically provided with two sets of connecting seats (3016), the fork arm (302) is of an L-shaped structure, an avoiding groove (3021) is formed in the top of the fork arm (302), one end of the jacking plate (301) away from the fork arm (302) is provided with a guide part (3022), the front side of the guide part (3022) is provided with a buffering bump (30221), the other end of the fork arm (302) is symmetrically provided with a connecting lug (3023), one side of the connecting lug (3023) is provided with a connecting pin (3024), the other end of the connecting pin (3024) sequentially penetrates through the connecting lug (3023) and a fixing nut (3025) is arranged behind the connecting seat (3016), one side of the fixing nut (3025) abuts against one side of the connecting lug (3023).

8. An on-board cargo truck according to claim 7, characterized in that a weight display 1034 is disposed at the top of the control box 103, an input end of the weight display 1034 is electrically connected to an output end of the control circuit board 1032, a power display lamp 1035 is disposed at one side of the control box 103, the power display lamp 1035 is electrically connected to the battery 1031, a charging connector 1036 is disposed below the power display lamp 1035, an output end of the charging connector 1036 is electrically connected to an input end of the battery 1031, and an output end of the battery 1031 is electrically connected to an input end of the control circuit board 1032.

9. A vehicle-mounted cargo forklift truck according to claim 8, characterized in that a slot (1037) is provided on the front side of said control box (103), a remote controller (1038) is placed inside said slot (1037), and said remote controller (1038) is connected with the input end of said control circuit board (1032) by wireless signal.

10. An operating method of a vehicle-mounted cargo truck, which is applied to the vehicle-mounted cargo truck according to claim 9, and is characterized by comprising the following steps:

s1, loading cargos: holding a first handle (106) by hand to push a forklift to extend a fork arm (302) into a pallet at the bottom of a cargo, pressing a lifting button on a remote controller (1038), driving a transmission screw rod (104) to rotate by a transmission motor (1033) through the matching of a worm wheel (10331) and a worm (10332), driving a transmission nut (3014) to move upwards along a thread, driving the fork arm (302) to lift upwards through a jacking plate (301), driving the cargo to stop after the cargo is lifted to a height higher than the height of a boxcar by the fork arm (302), manually pushing the forklift to move the cargo to the position above the edge of the boxcar, pressing a descending button of the remote controller (1038), driving the transmission screw rod (104) to rotate reversely by the transmission motor (1033), moving the fork arm (302) downwards, and stopping after the cargo is placed on a boxcar plate;

s2, forklift loading: continuously pressing a descending button, enabling a fork arm (302) to abut against a carriage plate, enabling the fork arm (302) to serve as a supporting component, enabling a main frame (100) to move upwards, loosening the descending button after a universal wheel (1021) is separated from the ground, manually pulling a third handle (2021) outwards, sliding out a supporting rod (201) to enable the end portion of the supporting rod (201) not to exceed the front side face of the main frame (100), pressing the descending button again, enabling the main frame (100) to move upwards continuously, loosening the descending button when the fork arm (302) reaches the lowest point of the main frame (100), pushing the supporting rod (201) inwards to enable a supporting wheel (2012) to contact with the carriage plate, pressing an ascending button again, enabling the fork arm (302) to jack up the goods to be separated from the carriage plate by a small distance, holding a second handle (107) to push a forklift into the carriage to enable the goods to be placed at a proper position, and enabling the forklift to finish a boarding action;

s3, unloading the forklift: when the truck moves to the unloading area, firstly moving the goods to the edge of the carriage in the carriage, suspending the main frame (100) outside the carriage, descending the fork arm (302), enabling the fork arm (302) to be abutted against the carriage plate, then pulling the third handle (2021) outwards, pulling out the supporting rod (201), pressing the ascending button, keeping the fork arm (302) still because the main frame (100) has no stress point, moving the main frame (100) downwards, when the universal wheels (1021) are about to be in contact with the ground, releasing the button, pushing the third handle (2021), resetting the supporting rod (201), pressing the ascending button again until the universal wheels (1021) and the supporting wheels (2012) are in contact with the ground, and finishing the unloading of the truck;

s4, getting off the goods: and continuously pressing the ascending button, jacking the goods by the fork arm (302), leaving the carriage plate of the carriage, holding the first handle (106), pulling the forklift backwards, pressing the descending button after the goods leave the carriage, reducing the moving height of the goods, pushing the forklift to move to a specified area, and then, descending the fork arm (302) to place the goods at a specified unloading point.