CN113562388A

CN113562388A - Cargo lifting device and cargo lifting method

Info

Publication number: CN113562388A
Application number: CN202010357691.6A
Authority: CN
Inventors: 郑宇鹏; 冷先锋; 苗延超; 王黎毅
Original assignee: Beijing Jingdong Zhenshi Information Technology Co Ltd
Current assignee: Beijing Jingdong Zhenshi Information Technology Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-10-29
Anticipated expiration: 2040-04-29
Also published as: CN113562388B

Abstract

The invention discloses a cargo lifting device and a cargo lifting method, and belongs to the technical field of logistics transportation. The cargo lifting device comprises: two support plates; the telescopic mechanism is connected between the two support plates, and the angle between the telescopic mechanism and the support plates is adjustable; and the control mechanism is used for controlling the telescopic mechanism to stretch and retract. The invention adopts two supporting plates to support the goods before and after lifting, and completes the lifting operation of the goods by controlling the extension and retraction of the extension and retraction mechanism; goods hoisting device simple structure, safe and reliable, goods promotion easy operation is convenient, can effectively liberate deliverer's both hands, reduces the human cost and shortens the delivery ageing, and the goods takes place to damage when can also avoiding artifical transport.

Description

Cargo lifting device and cargo lifting method

Technical Field

The invention relates to the technical field of logistics transportation, in particular to a cargo lifting device and a cargo lifting method.

Background

With the rapid development of logistics transportation, each large logistics enterprise can better serve customers by adopting a mode of sending goods to home, and particularly when the customers buy large articles, multiple articles or heavier articles, the satisfaction degree of the customers can be remarkably improved by sending the goods to home, so that the brand image is improved. Typically, the dispenser often uses a cart to load the large items and transport them to the home via the elevator of the building. But to the old district that does not have the elevator, perhaps when building elevator can't normally use, the distributor can only adopt the mode of climbing stair to carry out artifical transport, has not only increased the human cost, has still prolonged the delivery time, still probably takes place the damage of goods at the in-process of artifical transport, has increased the risk of paying

Therefore, it is desirable to provide a cargo lifting device and a cargo lifting method to solve the above problems.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a cargo lifting device and a cargo lifting method thereof, which can reduce labor cost, shorten delivery timeliness, and protect cargo from being damaged during delivery.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cargo lifting device comprising:

two support plates;

the telescopic mechanism is connected between the two support plates, and the angle between the telescopic mechanism and the support plates is adjustable;

and the control mechanism is used for controlling the telescopic mechanism to stretch and retract.

As an alternative to the above-described cargo lifting device, the telescopic mechanism comprises:

a conveyor belt;

the conveying belt is wound on the driven wheel and then wound on the driving wheel; the winding state of the conveying belt on the driving wheel is changed, so that the conveying belt is always in a tightening state;

the telescopic link is arranged between the driving wheel and the driven wheel, the distance between the driving wheel and the driven wheel is changed through the change of the length of the telescopic link, and then the telescopic state and the telescopic length of the telescopic mechanism are changed.

As an alternative to the above cargo lifting device, the telescopic mechanism further comprises:

and the driving piece is used for driving the driving wheel to rotate.

As an alternative to the above-described cargo lifting device, the telescopic mechanism is provided at least two at intervals.

As an alternative of the above cargo lifting device, one end of the supporting plate is connected with the telescopic mechanism, and the other end is provided with a handle; the bottom of the supporting plate is provided with universal wheels.

As an alternative of the above cargo lifting device, the telescopic mechanism is connected with each support plate through a connecting piece, and the support plates are rotatably arranged on the connecting pieces; the two ends of the telescopic rod are respectively connected with the connecting piece.

As an alternative to the above-described cargo lifting device, the conveyor belt is a crawler belt; the driving wheel and the driven wheel are both in gear structures.

As an alternative to the above-mentioned cargo lifting device, the connecting member is further provided with a supporting wheel, and the supporting wheel abuts against the inner side surface of the conveying belt to support the conveying belt.

A cargo lifting method using the cargo lifting device of any one of the above claims, characterized by comprising the steps of:

adjusting the angles of the two support plates relative to the telescopic mechanism so that the support surfaces of the two support plates face upwards and are respectively positioned at different heights, and the goods are positioned on the support plate at the lower part;

extending the telescoping mechanism to raise the support plate at an elevated position;

fixing the support plate at the height;

retracting the telescoping mechanism to raise the support plate at the lower position.

As an alternative of the above cargo lifting method, the method further comprises the steps of:

adjusting the angle of the telescoping mechanism relative to the support plate at the elevation so that the cargo falls onto the support plate at the elevation.

The embodiment of the invention has the following beneficial effects:

the goods are supported before and after being lifted by adopting the two supporting plates, and the lifting operation of the goods is completed by controlling the stretching of the stretching mechanism; whole goods hoisting device simple structure, safe and reliable, goods promotion easy operation is convenient, can effectively liberate deliverer's both hands, reduces the human cost and shortens the delivery ageing, and the goods takes place to damage when can also avoiding artifical transport.

Drawings

FIG. 1 is a schematic view of a cargo lifting device according to an embodiment of the present invention;

FIG. 2 is a side view of a cargo lifting device in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a telescoping mechanism in an embodiment of the invention;

fig. 4 is a first view of a cargo lifting device in a first stair section according to an embodiment of the present invention;

fig. 5 is a second view of a cargo lifting device in accordance with an embodiment of the present invention in a first stair section;

fig. 6 is a third view illustrating the use state of a cargo lifting device in the first stair section according to the embodiment of the present invention;

fig. 7 is a fourth view illustrating the state of use of a cargo lifting device in the first stair section according to the embodiment of the present invention;

fig. 8 is a fifth state view of a cargo lifting device in use in a first stair section according to an embodiment of the present invention;

fig. 9 is a first view of a cargo lifting device in a second stair section according to an embodiment of the present invention;

fig. 10 is a second state view of the cargo lifting device in the second stair section according to the embodiment of the present invention;

fig. 11 is a third view illustrating a state of use of a cargo-lifting device in a second stair section according to an embodiment of the present invention;

fig. 12 is a fourth state view of the cargo lifting device in the second stair section according to the embodiment of the present invention;

fig. 13 is a fifth state view of a cargo lifting device in a second stair section according to an embodiment of the present invention;

fig. 14 is a schematic view showing the structure of the handle of the support plate in the embodiment of the present invention.

In the figure:

100-cargo; 200-a support plate; 300-a telescoping mechanism;

201-a first support plate; 202-a second support plate;

21-universal wheels; 22-a handle;

31-a conveyor belt; 32-a first drive wheel; 33-a second capstan; 34-a driven wheel; 35-a telescopic rod; 36-a first drive member; 37-a second drive member; 38-a connector; 39-support wheels;

231-a shrink button; 232-stretch button.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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 and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The embodiment discloses a cargo lifting device. FIG. 1 is a schematic view of a cargo lifting device according to an embodiment of the present invention; fig. 2 is a side view of a cargo lifting device in an embodiment of the invention. Referring to fig. 1-2, a cargo lifting device includes:

two support plates 200;

the telescopic mechanism 300 is connected between the two support plates 200, and the angle between the telescopic mechanism 300 and the support plates 200 is adjustable;

and a control mechanism for controlling the extension and retraction of the extension and retraction mechanism 300.

The embodiment also provides a cargo lifting method using the cargo lifting device, which comprises the following steps:

adjusting the angles of the two support plates 200 relative to the telescopic mechanism 300 so that the support surfaces of the two support plates 200 face upward and are respectively located at different heights, and the goods 100 are located on the support plates 200 at the lower positions;

extending the telescopic mechanism 300 to raise the support plate 200 at a high position;

a support plate 200 for fixing a high place;

the telescopic mechanism 300 is contracted to raise the support plate 200 at a low position.

Since the angle between the telescopic mechanism 300 and the support plate 200 is adjustable, the cargo 100 can be transferred between the support plate 200 and the telescopic mechanism 300; further, the cargo lifting method further comprises the following steps:

the angle of the telescopic mechanism 300 with respect to the support plate 200 at the high is adjusted so that the cargo 100 falls onto the support plate 200 at the high.

The cargo lifting device provided by the embodiment adopts two support plates 200 to support the cargo 100 before and after lifting, and completes the lifting operation of the cargo 100 by controlling the extension and retraction of the telescopic mechanism 300; this goods hoisting device simple structure, safe and reliable, goods promotion easy operation is convenient, can effectively liberate deliverer's both hands, reduces the human cost and shortens the delivery ageing, and the goods takes place to damage when can also avoiding artifical transport.

When the cargo lifting device is implemented on stairs, one of the two support plates 200 is placed on the bottom platform of the stair section, and the telescopic mechanism 300 extends to drive the other support plate 200 to reach the top platform; keeping the top supporting plate 200 still, and the telescopic mechanism 300 contracts to drive the goods 100 and the bottom supporting plate 200 to ascend together until the goods 100 are transferred to the top supporting plate 200; the same mode is adopted to go up and down the next stair section, but the relative positions of the two supporting plates 200 are exchanged at the moment, the supporting plate 200 originally positioned at the bottom platform of the previous stair section extends to the top platform of the next stair section along with the extension of the telescopic mechanism 300, and the supporting plate 200 originally positioned at the top platform of the previous stair section is positioned at the bottom platform of the next stair section; the goods 100 are automatically transported on the stairs by the cyclic reciprocating.

Further, fig. 3 is a schematic structural diagram of a telescopic mechanism in the embodiment of the present invention; referring to fig. 3, the telescopic mechanism 300 includes:

a conveyor belt 31;

the conveying belt 31 is wound on the driven wheel 34 and then wound on the driving wheel; by changing the winding state of the conveyer belt 31 on the driving wheel, the overall release length of the conveyer belt 31 can be changed to adapt to the change of the stretching state and the stretching length of the stretching mechanism 300, and the conveyer belt 31 is always in a tightening state.

The telescopic link 35 is arranged between the driving wheel and the driven wheel 34, and the telescopic link 35 changes the distance between the driving wheel and the driven wheel 34 through the change of the length of the telescopic link 35, so that the telescopic state and the telescopic length of the telescopic mechanism 300 are changed.

Because the telescopic mechanism 300 realizes the telescopic action by adopting the matching of the conveying belt 31 and the telescopic rod 35, the method further comprises the following steps before the telescopic mechanism 300 contracts and lifts the support plate 200 at the lower part:

the angle of the telescopic mechanism 300 with respect to the lower support plate 200 is adjusted so that the goods 100 fall onto the conveyor belt 31 of the telescopic mechanism 300.

Namely, the conveyor belt 31 is used for carrying the cargo 100 during the upstairs; thus, the weight of the goods 100 can be shared by the conveyer belt 31 in the process that the supporting plate 200 at the lower part rises, the weight of the goods 100 is prevented from being concentrated on the supporting plate 200 at the lower part, and the stability of the goods 100 during lifting is enhanced; secondly, when the telescopic mechanism 300 is contracted to the proper position, the goods 100 can be directly transferred to the supporting plate 200 at the high position by the telescopic mechanism 300, and the problem that the transfer fails or is damaged due to the fact that the goods 100 are overturned to too large extent when the goods 100 are directly transferred to the supporting plate 200 at the high position by the supporting plate 200 at the low position is avoided.

Alternatively, one driving wheel is provided, that is, the belt 31 is fixed at one end and wound around the driving wheel at the other end after being wound around the driven wheel 34. In some other embodiments, as shown in fig. 3, two driving wheels, namely a first driving wheel 32 and a second driving wheel 33, may be provided, and after the conveying belt 31 is wound around the driven wheel 34, one end of the conveying belt is wound around the first driving wheel 32, and the other end is wound around the second driving wheel 33; the conveyer belt 31 is released or wound by two driving wheels, so that the releasing speed or the withdrawing speed of the conveyer belt 31 can be increased, and the cargo lifting efficiency is improved. When the device is specifically implemented, the rotation conditions of the two driving wheels can be adaptively adjusted according to specific conditions, for example, one of the two driving wheels can be set to rotate, the other driving wheel does not rotate, and the non-rotating driving wheel is a fixed end, which is equivalent to the condition of setting one driving wheel; it is also possible to let both driving wheels release the conveyor belt 31 when the telescopic mechanism 300 is extended, and to use only one driving wheel for winding when the telescopic mechanism 300 is retracted.

Further, the telescopic mechanism 300 further includes: a first driving member 36 for driving the first driving wheel 32 to rotate; and a second driving member 37 for driving the second driving wheel 33 to rotate.

For convenience of description, referring to fig. 2, two support plates 200 are respectively set as a first support plate 201 and a second support plate 202, a support surface of the first support plate 201 is set as a1, and a support surface of the second support plate 202 is set as a 2; referring to fig. 3, the two drive wheels of the telescopic mechanism 300, the one far from the stair section is the first drive wheel 32, and the one near the stair section is the second drive wheel 33; fig. 4 is a first view of a cargo lifting device in a first stair section according to an embodiment of the present invention; fig. 5 is a second view of a cargo lifting device in accordance with an embodiment of the present invention in a first stair section; fig. 6 is a third view illustrating the use state of a cargo lifting device in the first stair section according to the embodiment of the present invention; fig. 7 is a fourth view illustrating the state of use of a cargo lifting device in the first stair section according to the embodiment of the present invention; fig. 8 is a fifth state view of a cargo lifting device in use in a first stair section according to an embodiment of the present invention; fig. 9 is a first view of a cargo lifting device in a second stair section according to an embodiment of the present invention; fig. 10 is a second state view of the cargo lifting device in the second stair section according to the embodiment of the present invention; fig. 11 is a third view illustrating a state of use of a cargo-lifting device in a second stair section according to an embodiment of the present invention; fig. 12 is a fourth state view of the cargo lifting device in the second stair section according to the embodiment of the present invention; fig. 13 is a fifth view illustrating a state of use of a cargo-lifting device in a second stair section according to an embodiment of the present invention. With reference to fig. 4-13, the specific use of the cargo lift is as follows:

s101: cargo 100 is placed on a1 and moved to the bottom end platform of the first stair flight (see fig. 4); changing the relative angle between the telescoping mechanism 300 and the first support plate 201 to allow the telescoping mechanism 300 to be seated on the first stair section, extending the length of the telescoping rod 35, and simultaneously rotating at least one of the first drive wheel 32 and the second drive wheel 33 to release the conveyor belt 31 (referring to fig. 5, fig. 5 illustrates a case where both drive wheels rotate) until the second support plate 202 reaches the top end of the first stair section; the extension of the telescoping mechanism 300 now spans the entire first stair section;

s102: the angle of second support panel 202 relative to telescoping mechanism 300 is changed so that a2 is seated on the top platform of the first stair step, and second support panel 202 is manually stepped or otherwise secured (see fig. 6) so that the position of driven wheel 34 is relatively fixed; the first supporting plate 201 is rotated in a direction close to the telescopic mechanism 300 so that the goods 100 are seated on the conveyor belt 31 (refer to fig. 7);

s103: the length of the telescopic rod 35 is shortened, one of the first driving wheel 32 and the second driving wheel 33 is fixed, and the other one rotates reversely; or the two driving wheels rotate reversely to wind the conveyer belt 31, and the whole telescopic mechanism 300 contracts upwards to drive the first supporting plate 201 and the goods 100 to ascend until the top end of the first stair section is reached; preferably, referring to fig. 8, the first driving wheel 32 is stationary, and the second driving wheel 33 rotates in reverse direction, so that the rotation direction of the conveying belt 31 is consistent with the lifting direction of the goods 100, the friction between the goods 100 and the conveying belt 31 is reduced, and the lifting force is reduced;

s104: the angle of telescoping mechanism 300 relative to second support panel 202 changes to drop cargo 100 onto a 2; moving the whole cargo lifting device to make the telescoping mechanism 300 close to the second stair section (refer to fig. 9);

s105: changing the angle of the telescoping mechanism 300 relative to the second support plate 202 to enable the telescoping mechanism 300 to sit on the second stair flight;

s106: the length of the telescopic rod 35 is extended while at least one of the first driving wheel 32 and the second driving wheel 33 is rotated to release the conveyor belt 31 (referring to fig. 10, fig. 10 illustrates a case where both driving wheels are rotated) until the first support plate 201 reaches the top end of the second stair section, at which time the telescopic mechanism 300 is extended in length to span the entire second stair section;

s107: the angle of the first support plate 201 relative to the telescoping mechanism 300 is changed to enable a1 to be located on the top platform of the second stair section, and the first support plate 201 is fixed by manual stepping or other means, so that the positions of the two driving wheels are relatively fixed (refer to fig. 11); the second support plate 202 is rotated in a direction to approach the telescopic mechanism 300, and the cargo 100 is seated on the conveyor belt 31 (refer to fig. 12);

s108: the length of the telescopic rod 35 is shortened, one of the first driving wheel 32 and the second driving wheel 33 is fixed, and the other one rotates reversely; or both driving wheels rotate reversely to wind the conveyor belt 31, so that the telescopic mechanism 300 is contracted upwards (refer to fig. 13), and further the second supporting plate 202 and the goods 100 are driven to ascend until the top end of the second stair section is reached; preferably, referring to fig. 13, the second driving wheel 33 is stationary, and the first driving wheel 32 rotates in a reverse direction, so that the rotation direction of the conveying belt 31 is consistent with the lifting direction of the goods 100, the friction between the goods 100 and the conveying belt 31 is reduced, and the lifting force is reduced;

s109: the angle of the telescoping mechanism 300 relative to the first support plate 201 is changed to allow the cargo 100 to fall back onto a 1; returning to the initial state in step S101;

s110: steps S101-S109 are repeated until the target floor is reached.

Further, referring to fig. 1, at least two telescoping mechanisms 300 are provided at intervals, which ensures stable support of the cargo 100 by the telescoping mechanisms 300. In this embodiment, two telescoping mechanisms 300 are provided at intervals. Optionally, the conveyor belt 31 is a crawler belt; the crawler belt can ensure stable support of the cargo 100. Further alternatively, the driving wheel and the driven wheel 34 are both of a gear structure. Optionally, the telescopic rod 35 is a hydraulic telescopic rod or a pneumatic telescopic rod.

Further, still referring to fig. 1, the bottom of the support plate 200 is provided with universal wheels 21; one end and the telescopic machanism 300 of backup pad 200 are connected, and the other end sets up handle 22 for artifical the assurance to drag whole goods hoisting device, be particularly useful for on the platform between different stair sections, need turn to whole goods hoisting device and move the operation, make telescopic machanism 300 can be located the stage of next stair section. Further, fig. 14 is a schematic view of the structure of the handle of the support plate in the embodiment of the present invention; referring to fig. 14, an extension button 232 and a retraction button 231 may be provided on the handle 22 to transmit command operations for extension and retraction, enabling automatic execution of extension and retraction of the retracting mechanism 300.

Further, referring to fig. 3, the telescoping mechanism 300 is connected to each support plate 200 through a connecting member 38, and the support plates 200 are rotatably disposed on the connecting members 38, so that the angle adjustment of the support plates 200 relative to the telescoping mechanism 300 can be realized. Further, a connecting member 38 is connected to each end of the telescopic rod 35 to match the change of the telescopic length of the telescopic mechanism 300. Optionally, the supporting plate 200 is connected to the connecting member 38 by a foldable pneumatic rod to adjust the angle between the supporting plate 20 and the telescoping mechanism 300. Furthermore, the connecting member 38 is further provided with a supporting wheel 39, and the supporting wheel 39 is abutted against the inner side surface of the conveying belt 31 to support the conveying belt 31, so that the conveying belt 31 can keep the conveying plane from collapsing as much as possible under a long extension state.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cargo lifting device, comprising:

two support plates (200);

the telescopic mechanism (300) is connected between the two support plates (200), and the angle between the telescopic mechanism (300) and the support plates (200) is adjustable;

and the control mechanism is used for controlling the telescopic mechanism (300) to stretch and retract.

2. The cargo lifting device according to claim 1, wherein the telescoping mechanism (300) comprises:

a conveyor belt (31);

the conveying belt (31) is wound on the driven wheel (34) and then wound on the driving wheel; the winding state of the conveying belt (31) on the driving wheel is changed, so that the conveying belt (31) is always in a tightening state;

the telescopic rod (35) is arranged between the driving wheel and the driven wheel (34), the distance between the driving wheel and the driven wheel (34) is changed through the change of the length of the telescopic rod (35), and then the telescopic state and the telescopic length of the telescopic mechanism (300) are changed.

3. The cargo lifting device according to claim 2, wherein the telescoping mechanism (300) further comprises:

and the driving piece is used for driving the driving wheel to rotate.

4. The cargo lifting device according to claim 1, wherein the telescoping mechanisms (300) are spaced apart by at least two.

5. The cargo lifting device according to claim 1, wherein one end of the support plate (200) is connected to the telescoping mechanism (300) and the other end is provided with a handle (22); the bottom of the supporting plate (200) is provided with a universal wheel (21).

6. The cargo lifting device according to claim 2, characterized in that the telescopic mechanism (300) is connected with each support plate (200) through a connecting piece (38), and the support plates (200) are rotatably arranged on the connecting pieces (38); the two ends of the telescopic rod (35) are respectively connected with the connecting piece (38).

7. A cargo lifting device according to claim 2, characterized in that the conveyor belt (31) is a crawler belt; the driving wheel and the driven wheel (34) are both in gear structures.

8. A cargo lifting device according to claim 6, characterized in that a support wheel (39) is also arranged on the connecting piece (38), which support wheel (39) abuts against the inner side of the conveyor belt (31) for supporting the conveyor belt (31).

9. A method for lifting goods using the device for lifting goods as claimed in any one of claims 1 to 8, characterized by comprising the steps of:

adjusting the angles of the two support plates (200) relative to the telescopic mechanism (300) so that the support surfaces of the two support plates (200) face upwards and are respectively positioned at different heights, and the goods (100) are positioned on the support plates (200) at the lower positions;

extending the telescoping mechanism (300) to raise the support plate (200) at an elevated location;

-fixing said support plate (200) at said elevation;

retracting the telescoping mechanism (300) to raise the support plate (200) at the lower level.

10. The cargo lifting method according to claim 9, further comprising the steps of:

adjusting an angle of the telescoping mechanism (300) relative to the support plate (200) at the elevation to drop cargo (100) onto the support plate (200) at the elevation.