阅读说明：本技术 一种多用途装载工具 (Multipurpose loading tool ) 是由 李一鸣 于 2021-09-30 设计创作，主要内容包括：本发明公开一种多用途装载工具,包括装载底板、车架及动力机构,车架包括牵引杆及支撑架,支撑架下端与装载底板连接,上端与牵引杆连接；支撑架包括两根弧形杆,两根弧形杆对称设置,并逐渐上扬延伸形成向上的拱形,两者上扬延伸的过程中逐渐靠拢,并在顶端连接；两根所述弧形杆的下端均通过折叠机构与装载底板的前端连接；牵引杆的前端可拆卸地连接有穿戴式牵引件。本发明结构简单,质轻稳定,易收纳,控制灵活,功能完善；通过优化车架的结构,能够使装载工具同时满足站姿牵引和卧姿牵引,从而提高其功能性,成为军民两用的装载工具。(The invention discloses a multipurpose loading tool, which comprises a loading bottom plate, a frame and a power mechanism, wherein the frame comprises a traction rod and a support frame, the lower end of the support frame is connected with the loading bottom plate, and the upper end of the support frame is connected with the traction rod; the supporting frame comprises two arc-shaped rods, the two arc-shaped rods are symmetrically arranged and gradually lift up and extend to form an upward arch, and the two arc-shaped rods gradually approach each other in the lifting and extending process and are connected at the top ends; the lower ends of the two arc-shaped rods are connected with the front end of the loading bottom plate through a folding mechanism; the front end of the traction rod is detachably connected with a wearable traction piece. The invention has simple structure, light and stable weight, easy storage, flexible control and perfect function; by optimizing the structure of the frame, the loading tool can meet the requirements of standing traction and lying traction at the same time, so that the functionality of the loading tool is improved, and the loading tool can be used as a dual-purpose loading tool for military and civil use.)

1. A multipurpose loading tool is characterized by comprising a loading bottom plate, a frame and a power mechanism, wherein the frame comprises a traction rod and a support frame, the lower end of the support frame is connected with the loading bottom plate, and the upper end of the support frame is connected with the traction rod; the supporting frame comprises two arc-shaped rods, the two arc-shaped rods are symmetrically arranged and gradually lift up and extend to form an upward arch, and the two arc-shaped rods gradually approach each other in the lifting and extending process and are connected at the top ends; the lower ends of the two arc-shaped rods are connected with the front end of the loading bottom plate through a folding mechanism; the front end of the traction rod is detachably connected with a wearable traction piece.

2. The multipurpose loading tool of claim 1, wherein a first cross bar and a second cross bar are disposed between the two curved bars, the two cross bars being spaced apart in parallel, wherein the first cross bar is connected to a middle portion of the two curved bars, and the second cross bar is connected to a lower portion of the two curved bars.

3. A multipurpose loading tool as claimed in claim 2, wherein a straight bar is provided between the two curved bars, the straight bar is vertically provided between the connecting positions of the two curved bars and the first cross bar, the straight bar is hollow and has a cavity formed therein for receiving the drawbar, and the drawbar is telescopically mounted on the upper end of the straight bar.

4. A multipurpose loading tool according to claim 1, wherein the drawbar is formed with a force application head at an upper end thereof, said force application head being removably connected to the drawbar.

5. A multi-purpose loading tool according to claim 4, wherein the force application head extends in a curved manner away from the loading floor.

6. The multipurpose loading tool as claimed in claim 1, wherein the arc degree of the arc rod is 60-70 °, the vertical height of the arc rod is 700-800mm, and the vertical height of the drawbar is 350-400 mm.

7. A multipurpose loading tool according to claim 1 wherein the power mechanism includes two wheels, symmetrically disposed below the loading floor and adjacent one side of the frame.

8. The multipurpose loading tool of claim 7, wherein the power mechanism further comprises a drive assembly comprising a brushless motor, a battery, and a controller, wherein the brushless motor is embedded within the wheel.

9. A multi-purpose loading tool as claimed in claim 7, wherein a tray is provided under the loading base, an assembly space is defined between the tray and the loading base, and the battery and the controller are installed in the assembly space.

10. The multipurpose loading tool of claim 1, wherein the support frame defines mounting holes for mounting accessories.

Technical Field

The invention belongs to the technical field of loading tools, and particularly relates to a multipurpose loading tool.

Background

The loading tool has huge demand potential in many daily scenes, and under the condition that an individual needs to move a person or carry goods, no matter the carrying or back-carrying posture is adopted, the physical quality of a human body cannot bear long-time operation, and strain of the functions of organs of the human body is easily caused; when the army is unfolded for combat, wounded persons and transported materials need to be moved efficiently, and if tools are not used, the physical ability of soldiers is greatly lost, and the moving ability and the combat ability of individual soldiers are influenced. At present, the dual-purpose loading tool for military and civil use in China is few, and the existing loading tool is complex in structure, inconvenient to carry and single in function, and cannot meet different use scenes.

Disclosure of Invention

Aiming at the problems that the loading tool in the prior art is complex in structure and single in function and cannot adapt to different use scenes, the invention provides the multipurpose loading tool which is light and stable in weight, portable, easy to store and capable of being used by military and civilian.

The invention aims to be realized by the following technical scheme:

a multipurpose loading tool comprises a loading bottom plate, a frame and a power mechanism, wherein the frame comprises a traction rod and a support frame, the lower end of the support frame is connected with the loading bottom plate, and the upper end of the support frame is connected with the traction rod; the supporting frame comprises two arc-shaped rods, the two arc-shaped rods are symmetrically arranged and gradually lift up and extend to form an upward arch, and the two arc-shaped rods gradually approach each other in the lifting and extending process and are connected at the top ends; the lower ends of the two arc-shaped rods are connected with the front end of the loading bottom plate through a folding mechanism; the front end of the traction rod is detachably connected with a wearable traction piece. In the scheme, the loading bottom plate and the support frame jointly define an open loading space which can be adapted to loads with different volumes and is light and stable; the support frame adopts the gradually-raised arc-shaped rod, so that the ergonomic is better met, the labor is saved for a tractor during traction, and the support frame with the structure is matched with the loading bottom plate to form a certain space between the lower limbs of the tractor and the loading tool, so that the tractor can conveniently move, the standing traction can be realized, the lying traction can also be realized, and the military and civil requirements are met; the wearing type traction piece can liberate both hands of a tractor, and is more convenient to use.

Preferably, a first cross rod and a second cross rod are arranged between the two arc-shaped rods, the two cross rods are arranged in parallel at intervals, the first cross rod is connected to the middle parts of the two arc-shaped rods, and the second cross rod is connected to the lower parts of the two arc-shaped rods. The arrangement of the cross rod can improve the strength of the whole support frame, improve the loading capacity of the loading tool and provide mounting positions for various accessories.

Preferably, a straight rod is arranged between the two arc-shaped rods, the straight rod is vertically arranged between the connecting position of the two arc-shaped rods and the first cross rod, the straight rod is of a hollow structure, a cavity for accommodating the traction rod is formed in the straight rod, and the traction rod is telescopically arranged at the upper end of the straight rod. The traction rod is connected with the support frame in a telescopic mode, the size of the loading tool during folding and storage can be reduced, the loading tool is convenient to store, and in addition, the traction rod is connected with the support frame in a telescopic mode, so that the height of the whole frame can be adjusted to adapt to tractors with different heights.

Preferably, the lower ends of the two arc-shaped rods are connected with the front end of the loading bottom plate through a folding mechanism. The frame is connected with the loading bottom plate through the folding mechanism, so that the loading tool can be conveniently folded and stored, and the storage volume of the loading tool is reduced.

Preferably, the radian of the arc-shaped rod is 60-70 degrees, the vertical height of the arc-shaped rod is 700-800mm, and the vertical height of the traction rod is 350-400 mm. The combination of the fixed height of the arc-shaped rod and the variable height of the traction rod is matched with the radian of the arc-shaped rod, so that the matching degree of the loading tool and a tractor can be effectively improved, the situation that the loading tool hinders the normal leg lifting of the tractor in the process of advancing along with the tractor is avoided, the advancing resistance is reduced, the loading tool can be dragged while the tractor walks normally, and convenience and labor saving are realized; the vertical height of the traction rod can be extended and contracted according to the height of a tractor so as to be matched with different heights.

Preferably, the arc of the arc-shaped rod is 65 degrees; the vertical height of the arc-shaped rod is 716mm, and the vertical height of the traction rod is 374 mm. The radian and the vertical height are based on the shank adding height of a common person and are combined with the optimal data measured by the step pitch, so that the loading tool can adapt to male and female tractors with different heights and different ages.

Preferably, a force application end head is formed at the upper end of the traction rod and detachably connected with the traction piece. The detachable connection is adopted to facilitate loading and unloading.

Preferably, the force application tip extends in a curved manner in a direction away from the loading floor. The force application end is arranged in a bending way, so that a proper distance can be reserved between the loading tool and a tractor, and particularly when the tractor is used in a prone position, the bent and extended force application end can be matched with the wheels to suspend the frame in the air, so that a moving space is provided for the tractor; moreover, the force application end head which extends towards the tractor in a bending way can effectively transfer the traction force applied by the tractor to the loading tool, and is more labor-saving.

Preferably, the power mechanism comprises two wheels, and the two wheels are symmetrically arranged below the loading bottom plate and close to one side of the frame. The wheels are arranged close to one side of the frame, and the gravity center of the whole loading tool can fall to a proper position by matching with the frame which is lifted forwards, so that the loading tool is more stable and labor-saving; when the loading tool is used in cooperation with a prone position, the wheels are arranged at the positions, so that the whole loading tool can be continuously and effectively supported, can normally rotate in a contact manner with the ground, and is more labor-saving in traction.

Preferably, the power mechanism further comprises a driving assembly, the driving assembly comprises a brushless motor, a storage battery and a controller, and the brushless motor is arranged inside the wheel. The driving assembly can provide advancing power for the loading tool, so that the loading capacity of the loading tool is improved, the loading tool can adapt to different terrains, a tractor only needs to control the direction and the vehicle speed, and the loading tool is labor-saving and easy to control.

Preferably, a supporting plate is arranged below the loading bottom plate, an assembly space is formed between the supporting plate and the loading bottom plate, and the storage battery and the controller are installed in the assembly space.

Preferably, the traction piece is a stab-resistant suit, and a connecting piece matched with the force application end is arranged on the back of the stab-resistant suit. When the tool military is loaded, the stab-resistant suit serving as the traction piece can not only liberate both hands of the soldier, but also protect the soldier, and improve the moving capacity and the fighting capacity of the individual soldier.

Preferably, the loading bottom plate is provided with an elastic belt, one end of the elastic belt is fixedly connected to the tail end of the loading bottom plate, and the other end of the elastic belt is provided with a hook capable of hooking the first cross rod and the second cross rod.

Preferably, the support frame is provided with a mounting hole for mounting an accessory.

Compared with the prior art, the invention has the following beneficial effects: the invention has simple structure, light and stable weight, easy storage, flexible control and perfect function; the combination of the frame, the plate and the belt defines an open carrying space which can carry different types of carrying objects with different volumes; by optimizing the structure of the frame, the loading tool can simultaneously meet the requirements of standing posture traction and lying posture traction, so that the functionality of the loading tool is improved, and the loading tool becomes a dual-purpose loading tool for military and civil; the support frame adopts the optimal size and radian in combination with ergonomics, so that a tractor can realize traction in the normal running process, and the support frame is labor-saving and convenient; the supporting frame and the loading bottom plate are provided with universal mounting holes for mounting accessories, different accessories can be additionally mounted according to different use scenes, and the functionality of the loading tool is further improved.

Drawings

FIG. 1 is a schematic diagram of the mechanism of the present invention;

FIG. 2 is a schematic view of the frame structure of the present invention;

FIG. 3 is a schematic structural view of the present invention in a folded state;

FIG. 4 is a schematic view of the folding mechanism of the present invention;

FIG. 5 is a schematic view of the structure of the loading base plate of the present invention;

the labels in the figure are: a loading floor 10; a pallet 11; a drawbar 21; a force application tip 211; a support frame 22; an arcuate bar 221; a horizontal bend 2211; a straight bar 222; the first cross bar 223; a second cross bar 224; a mounting hole 225; a waist-shaped aperture 226; a folding mechanism 30; a first stem 31; a second stem 32; a wheel 41; a battery 42; a controller 43; a stab-resistant garment 50.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which:

referring to fig. 1-5, the embodiment discloses a multipurpose loading tool, which is dual-purpose for military and civilian use, light and stable in weight, efficient and easy to store, can meet the carrying requirements of different life scenes in daily life, so as to improve the convenience degree of resident life, redefine the travel carrying mode of small and medium burdens, improve the efficiency of personal mobile transportation of military, and greatly improve the operational capacity of the military with the assistance of technologies such as attached terrain exploration.

The multipurpose loading tool comprises a loading bottom plate 10, a frame and a power mechanism, wherein the frame is made of alloy which is resistant to high temperature and high pressure, corrosion and deformation and good in ductility. The frame comprises a traction rod 21 and a support frame 22, the lower end of the support frame 22 is connected with the loading bottom plate 10, and the loading bottom plate 10 and the support frame 22 jointly define an open loading space which can be adapted to loads with different volumes; the upper end of the support frame 22 is connected with the traction rod 21, the support frame 22 comprises two arc-shaped rods 221, the two arc-shaped rods 221 are symmetrically arranged and are gradually lifted and extended to form an upward arch, the two arc-shaped rods are gradually closed in the lifting and extending process and are connected at the top end, the support frame 22 adopts the arc-shaped rods 221 which are gradually lifted, the ergonomic is better met, the labor is saved for a tractor during traction, a triangular space for the tractor to lift legs can be formed between the lower limbs of the tractor and a loading tool by an arc-shaped surface defined by the support frame 22, the tractor can drag the loading tool by adopting a normal walking posture, the posture is not required to be adjusted, and the labor is saved; the triangular space can realize standing traction and lying traction to meet the use requirements of narrow areas and special environments, and the functionality is stronger; the traction rod 21 is arranged on the extension line of the straight rod 222 to form a forward-inclined posture so as to be matched with the lifting posture of the support frame 22 and ensure the effectiveness of traction force transmission; the wearable traction piece can liberate both hands of a tractor, and is more convenient and faster by matching with standing posture traction and lying posture traction; a first cross rod 223 and a second cross rod 224 are arranged between the two arc-shaped rods 221, the two cross rods are arranged in parallel at intervals, the first cross rod 223 is connected to the middle parts of the two arc-shaped rods 221, the second cross rod 224 is connected to the lower parts of the two arc-shaped rods 221, and the arrangement of the two cross rods can improve the strength of the whole frame, so that the loading capacity is improved, and a proper mounting position can be provided for accessories in the actual use process; the traction bar 21 has a traction member detachably attached to its front end, and the traction member is worn on the body of the person to be drawn. The structure supporting frame 22 is matched with the loading bottom plate 10 to realize standing traction and lying traction, so that military and civil requirements are met, the wearable traction piece can liberate both hands of a tractor, and the use is more convenient.

A straight rod 222 is further arranged between the two arc-shaped rods 221, the straight rod 222 is vertically arranged between the connecting position of the two arc-shaped rods 221 and the first cross rod 223, the straight rod 222 is of a hollow structure, a cavity for accommodating the traction rod 21 is formed in the straight rod 222, the traction rod 21 is telescopically arranged at the upper end of the straight rod 222 and is positioned on the extension line of the straight rod 222 to form a forward-inclined posture so as to be matched with the lifting posture of the support frame 22 and ensure the effectiveness of traction force transmission; a locking sleeve is arranged between the lower end of the traction rod 21 and the straight rod 222, the traction rod 21 adopts a telescopic installation mode, the adaptability of the loading tool can be improved, the requirements of tractors with different heights can be met, the traction rod 21 which is arranged in a forward tilting mode can adjust the overall height of the frame, the space between the frame and the tractors can be adjusted, the adaptability is strong, and in addition, the telescopic arrangement can reduce the accommodating volume of the loading tool; for further reducing its volume of accomodating, two the lower extreme of arc pole 221 all is connected with the front end of loading bottom plate 10 through folding mechanism 30, and folding mechanism 30 includes first loop bar 31 and the second loop bar 32 of mutual pin joint, and the loop bar includes pin joint portion and connecting portion, the pin joint portion pin joint of two loop bars, and the connecting portion suit of first loop bar 31 is at the end of arc pole 221, and the end of arc pole 221 is equipped with the straightway that matches with first loop bar 31, and the connecting portion suit of second loop bar 32 is on the spliced pole of loading bottom plate 10 front end. When the loading tool needs to be opened for use or folded for storage, any tool such as a screwdriver or a wrench is not needed. When folding and storing, the loading bottom plate 10 can be closed to the frame by bending and folding the first loop bar 31 and the second loop bar 32 of the two folding mechanisms 30 in the pivot joint by bare hands, then the traction rod 21 is stored in the straight bar 222, the storage of the loading tool is completed, and if the loading tool needs to be opened, the operations are performed in a reverse order.

The upper ends of the arc-shaped rods 221 are all formed with horizontal bending sections 2211, the horizontal bending sections 2211 are bent in opposite directions and extend to be connected to the straight rods 222, the arrangement of the horizontal bending sections 2211 can improve the strength of the whole frame, the loading capacity of a loading tool is improved, and stress concentration at the connection positions of the arc-shaped rods 221 is avoided.

In order to enable a tractor to obtain a comfortable posture during forward traction, the invention performs measurement and calculation by combining the leg height, the height and the step size of men and women in different age groups, and the calculation formula is that the height multiplied by 0.145 is step distance (male) and the height multiplied by 0.413 is step distance (female), and finally the optimum height range and radian range of the frame are determined. The fixed height of the arc-shaped rod 221 and the variable height of the traction rod 21 are matched with the radian of the arc-shaped rod 221, so that the matching degree of the loading tool and a person can be effectively improved, the situation that the leg lifting of the user is hindered when the loading tool moves forwards along with the user is avoided, the advancing resistance is reduced, the loading tool can be dragged while the tractor normally walks, and convenience and labor saving are realized; the vertical height of the traction rod 21 can be extended and contracted according to the height of a tractor so as to be matched with different heights. In this embodiment, the arc angle of the arc rod 221 is 65 °; the vertical height of the arc-shaped rod 221 is 716mm, the vertical height of the traction rod 21 is 374mm, and specific reference data are as follows:

a force application end 211 is formed at the upper end of the traction rod 21, the force application end 211 is detachably connected with the traction piece, and the detachable connection is adopted to facilitate loading and unloading; the force application end 211 extends in a bending mode towards a direction far away from the loading base plate 10, the force application end 211 is arranged in a bending mode to enable a proper distance to be reserved between a loading tool and a tractor, particularly when the tractor is used in a prone position, the force application end 211 extending in a bending mode can enable the tractor to be suspended in the air by matching with the wheels 41, the tractor has an upward radian and cannot be pressed on the body of the tractor, and the tractor can conveniently move forward in the prone position; moreover, the force application end 211 extending towards the tractor in a bending way can effectively transfer the traction force applied by the tractor to the loading tool, so that the labor is saved, and the direction control is more accurate.

The power mechanism comprises two wheels 41, the two wheels 41 are symmetrically arranged below the loading bottom plate 10 and are arranged close to one side of the frame, the wheels 41 are arranged close to one side of the frame, and the whole loading gravity center can fall to a proper position by matching with the frame which is lifted forwards, so that the stability and labor saving are realized; when the loading tool is used in cooperation with a prone position, the wheels 41 are arranged at the positions, so that the whole loading tool can be continuously and effectively supported, can be in contact with the ground and normally rotate, and is more labor-saving in traction; the power mechanism further comprises a driving assembly, the driving assembly comprises a brushless motor, a storage battery 42 and a controller 43, the brushless motor is arranged inside the wheel 41, the wheel 41 is compared with a traditional large wheel, the small wheel which is light and flexible is adopted in the embodiment, the motor is arranged inside, a rear axle is removed, the weight is greatly reduced, the problem that the steering angle is too small is solved, the loading tool is smaller and more flexible, the loading tool can be better matched with a tractor, the driving assembly can provide advancing power for the loading tool, the loading capacity of the loading tool is improved, the loading tool can adapt to different terrains, the tractor only needs to control the direction and the speed, and the labor is saved and the operation is easy to control; the lower part of the loading bottom plate 10 is provided with a supporting plate 11, an assembly space is formed between the supporting plate 11 and the loading bottom plate 10, the storage battery 42 and the controller 43 are installed in the assembly space, the loading bottom plate 10 is reduced to be 360mm X300 mm X45 mm in size, and the battery is arranged in the assembly space, so that the space structure of the loading tool is optimized, and the battery is a 3.5kg lithium battery to ensure that the whole loading tool is light in weight.

In the embodiment, the speed of the loading tool is controlled by adopting the handheld remote controller, complex circuits are removed, the vehicle body is simpler and more comfortable, and the loading tool can move forward and backward freely due to the newly added forward and backward switching function. First, the battery transmits electricity to the controller 43, and the controller 43 processes the transmitted electricity and then sends the processed electricity to the motor, so that the motor operates to drive the whole loading tool to move forward. If adopt speed governing handle or speed governing button, all need the electric wire to be connected with controller 43, at a certain extent, wired control can restrict the action of tractor, consequently, adopt remote controller control controller 43 in this embodiment, different magnitude of voltage can be sensed to controller 43 to adjust the height of giving motor voltage according to the size of sending the magnitude of voltage, just so can control the rotational speed of motor, the remote control distance is in 8 meters, easy operation, it is more convenient to use.

The model of the single chip microcomputer is PIC16F72 in the embodiment, the main control circuit of the single chip microcomputer is the core part of the controller 43 of the brushless motor, Hall signals, rotating handle signals, over-current detection signals, brake signals and the like of the motor are directly input into the single chip microcomputer and processed by the single chip microcomputer, and the single chip microcomputer outputs front-stage driving signals of three bridge arms of the electronic commutator so as to control the operation of the motor. The single chip microcomputer determines the pulse width of the output driving signal according to the voltage signal change of the pin, so that the rotating speed of the motor is determined. The controller 43 receives control signals from the remote control to control the rotational speed of the motor, so that by turning the speed knob of the remote control, the remote control sends out different control signals which are received by the receiver to control the speed.

The wearable traction piece can select a proper traction piece such as a waist ring, a back belt or an anti-stab garment 50 according to different use scenes, and in daily use, if a lighter load is transported, a waist belt can be adopted, and if a heavier load is transported, a back belt can be adopted, and the wearable traction piece is provided with a shoulder belt and a waist belt, so that all tension can be prevented from being concentrated on the waist, and the traction is more labor-saving and comfortable; when the force applying device is used by military, the traction piece can adopt the puncture-proof clothes 50, and the back of the puncture-proof clothes 50 is provided with a connecting piece matched with the force applying end 211. When the loading tool is used by military, the stab-resistant suit 50 serving as a traction piece can not only liberate both hands of a soldier, but also protect the soldier, and improve the moving capacity and the fighting capacity of the individual soldier.

Be equipped with the elastic webbing on the loading bottom plate 10, the one end rigid coupling of elastic webbing in the tail end of loading bottom plate 10, the other end is equipped with the couple that can collude in first horizontal pole 223 and second horizontal pole 224, the elastic webbing can be fixed carrying the thing, its length can be adjusted according to the volume and the shape of carrying the thing with colluding the position, carry the thing volume when great, the couple of elastic webbing can collude and hang on the first horizontal pole 223 that is located the top, in order to prescribe a limit to bigger year thing space, carry the thing volume when less, the elastic webbing can collude and hang on the second horizontal pole 224 that is located the below, in order to prescribe a limit to less year thing space.

The support frame 22 is provided with a mounting hole 225 for mounting an accessory. When the loading tool is used as a vegetable buying loading tool, the loading tool can be matched with the hook to be used as a vegetable buying cart, the upper end of the hook is provided with a flexible belt, the hook is hung on the first cross rod 223 through the flexible belt, the bag is hung on the hook and can be kept in a vertical state all the time, and the bag containing liquid can be transported; when the loading tool is used as a luggage loading tool, small luggage such as a cosmetic bag and the like, soft large luggage such as a woven bag and hard large luggage such as a luggage case and the like have corresponding storage position designs, the gravity center of the whole luggage is reduced through reasonable layout, the storage layout is worried about for passengers, and the luggage loading tool is fixed by matching with an elastic band; when using as perambulator, can utilize annex fast assembly pocket device, this pocket adopts tough waterproof material, and there are the design of two holes in the bottom, supply the baby to stretch out the both legs, all offer the mounting hole 225 that is used for fixed pocket area on arc pole 221 upper portion and the first horizontal pole 223 of support frame 22, waist shape hole 226 has been seted up to the lower part of arc pole 221, can be used to install little footboard, provide the support for baby's both feet, and the height of little footboard can carry out position control according to baby's height.

When the loading tool is used in an army, the bottom plate can be extended to provide a space required by sitting posture, the function of transporting wounded persons is exerted, the two hands of soldiers can be liberated by the wearable traction piece, and the movement capability and the fighting capability of soldiers are improved; a plurality of small trolleys are flatly placed, can stand on the bumpy road surface by taking the opened trolley frame as a pivot, and then are connected, so that a simple stretcher can be formed, and the emergency treatment can be carried out on the soldiers with serious injury; the sensor and the information terminal can be installed in an embedded mode, the wheels adopt a universal wheel technology and the sensor, the function of induction conduction is achieved, communication with a command center and a monitoring station is smooth and free, the geographical position and the natural environment information of soldiers are transmitted in real time, and technical support is provided for more flexible battles.

The multipurpose loading tool disclosed by the invention is light and stable in weight, small and flexible, strong in loading capacity and capable of loading heavy objects of about 125 KG; the requirements of military and civil can be met simultaneously, and the coverage of practical crowds is wide; the folding or unfolding can be fast and simple, and the storage and carrying are easy; in the process of loading and transporting, the stability is strong, and jolts caused by road conditions are reduced, so that the device can adapt to wider application scenes; the adopted materials are light and convenient, and the weight of the body is reduced, so that the friction force between the body and the ground is reduced; the structure design is scientific, and a larger accommodating space is formed by a simplified material framework; part of functional components can be detached, and loading functions in different forms can be realized according to different requirements; when the folding storage is realized, a manual storage mode is adopted, the trouble of electric power storage caused by electric power storage is avoided, the man-machine relationship is reasonably utilized, the static size and the dynamic size of a person are fully considered, so that a tractor can basically keep the original posture to realize the traction target, no matter the frame after being improved is pulled in a standing posture or a lying posture, a triangular area can be formed between the frame and the tractor for the leg of the tractor to move, the tractor can realize the traction of a loading tool by adopting a normal forward posture, the requirement on the physical quality of the user is friendly, and the range of the user is expanded; the annex is abundant, and the equipment is simple and convenient, can show various powerful functions according to different needs, and the equipment requires lowly to the user, labour saving and time saving.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …". 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.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should cover all the changes, modifications, additions and substitutions within the spirit of the present invention.