Cargo transportation loading lifting device and control method

Abstract

The invention relates to the technical field of cargo loading and unloading, and discloses a cargo transporting, loading and lifting device which comprises a base, limiting frames are arranged on the left side and the right side of the top of the base correspondingly, and a section of connecting transverse plate fixedly connected with the top of the limiting frame on the right side is arranged on the top of the limiting frame on the left side. According to the cargo transporting, loading and lifting device, the auxiliary pushing assembly is arranged, after the cargo is lifted to the needed height, the limiting assembly is separated from the cargo, then an electric hydraulic push rod is started to drive a sliding plate to move upwards, the sliding plate drives a plurality of auxiliary rolling wheels to move upwards to support the cargo, and under cooperation of the auxiliary rolling wheels, the cargo is conveyed to the loading position. Working personnel can push goods to be conveyed down from a lifting plate, then the purpose of fixing and limiting the goods can be achieved, through arrangement of a stabilizing assembly, a threaded shaft is rotated to drive a stabilizing block to move downwards, the contact area between the device and the ground is enlarged, the stabilizing effect of the device is ensured, the practicability of the device is further improved, and the device is convenient to use by the working personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of cargo loading and unloading, and in particular to a cargo transportation loading and lifting device and a control method therefor. Background Art

[0002] The loading operation and unloading operation at the beginning and end of the production process of motor vehicle cargo transportation are important links essential for motor vehicle cargo transportation. The cargo loading and unloading operation has a very important impact on vehicle operation efficiency, cargo delivery speed, transportation quality and transportation cost. Generally, it is organized by the cargo carrier unit or the consignor and consignee units. The loading and unloading methods of motor vehicle transported cargo have experienced a process from manual loading and unloading to semi-mechanized and mechanized loading and unloading. Manual loading and unloading and loading and unloading carried out manually with simple tools have continued for a quite long time and are still in use.

[0003] At present, after the existing cargo transportation loading and lifting device lifts the cargo to a specified height, multiple staff members are still required to move the cargo down from the lifting device. This operation method is relatively time-consuming and laborious, reducing the cargo transportation efficiency. Moreover, most of the existing cargo transportation loading and lifting devices do not have a fixing function, and the cargo is prone to displacement and falling during lifting, affecting the use of the device. Therefore, a cargo transportation loading and lifting device is proposed to solve the above-mentioned technical problems. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a cargo transportation loading and lifting device, which has the advantages of facilitating the staff to move the cargo down from the device and being able to fix and limit the cargo, and solves the problems that after the existing cargo transportation loading and lifting device lifts the cargo to a specified height, multiple staff members are still required to move the cargo down from the lifting device, this operation method is relatively time-consuming and laborious, reducing the cargo transportation efficiency, and most of the existing cargo transportation loading and lifting devices do not have a fixing function, and the cargo is prone to displacement and falling during lifting, affecting the use of the device.

[0006] (II) Technical Solutions

[0007] To achieve the purpose of facilitating the staff to transport goods from the device and fixing and limiting the goods, the present invention provides the following technical solutions: A goods transportation and loading lifting device, including a base, both the left and right sides of the top of the base are provided with limiting frames, the top of the left limiting frame is provided with a connecting cross plate fixedly connected to the top of the right limiting frame, the top of the connecting cross plate is provided with a lifting assembly fixedly connected to the top of the base, the front side wall of the lifting assembly is provided with a lifting plate, the lifting plate is slidably connected to the front side walls of the two limiting frames, the bottom of the lifting plate is provided with an auxiliary pushing assembly, both the left and right side walls of the base are provided with two stabilizing assemblies that are symmetrically distributed front and back, and both the left and right sides of the top of the lifting plate are provided with fixed vertical plates, and opposite sides of the two fixed vertical plates are both provided with limiting assemblies slidably connected to the top of the lifting plate;

[0008] The lifting assembly includes a fixed frame, a fixed frame located between the two limiting frames is fixedly connected between the bottom of the connecting cross plate and the top of the base, the top of the connecting cross plate is fixedly connected with a motor fixing frame, the inner top wall of the motor fixing frame is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly connected with a first threaded rod rotatably connected to the inner bottom wall of the fixed frame, and the lifting plate is threadedly connected to the outside of the first threaded rod;

[0009] The auxiliary pushing assembly includes a positioning plate, both the left and right sides of the bottom of the lifting plate are fixedly connected with positioning plates, a sliding plate is fixedly connected between the two positioning plates, the top of the sliding plate is fixedly connected with a number of auxiliary rollers, and both the left and right sides of the bottom of the lifting plate are fixedly connected with electric hydraulic push rods, and the output ends of the two electric hydraulic push rods are fixedly connected to the top of the sliding plate;

[0010] The stabilizing assembly includes a rectangular block, both the left and right side walls of the base are fixedly connected with two rectangular blocks that are symmetrically distributed front and back, the top of the rectangular block is threadedly connected with a threaded shaft extending to its bottom, and the bottom of the threaded shaft is movably connected with a stabilizing block;

[0011] The limiting component includes positioning blocks. The positioning blocks are fixedly connected to the opposite sides of the two fixed vertical plates. The top of the positioning block is movably connected to a second threaded rod that is rotatably connected to the top of the lifting plate. The outer part of the second threaded rod is threadedly connected with two threaded blocks that are symmetrically distributed up and down. The top of the lifting plate is slidably connected with two adjusting plates that are symmetrically distributed left and right. The opposite sides of the two adjusting plates are each slidably connected with two sliders that are symmetrically distributed up and down. An X-shaped connecting rod is hinged between the upper and lower threaded blocks and the upper and lower sliders. The opposite sides of the two adjusting plates are fixedly connected with slide rails. The outer part of the slide rail is slidably connected with a slide seat. The front side wall of the slide seat is threadedly connected with a first limiting bolt that is threadedly connected to the inner wall of the slide rail. The opposite sides of the two slide seats and the opposite sides of the two adjusting plates are fixedly connected with slide frames. The inner walls of the two slide frames are each slidably connected with two partition plates that are symmetrically distributed front and back. The opposite sides of the left and right partition plates respectively extend to the outside of the two slide frames. The top of a single slide frame is threadedly connected with two second limiting bolts that are respectively threadedly connected to the interiors of the front and back partition plates.

[0012] Preferably, both the left and right sides of the bottom of the base are fixedly connected with two universal wheels that are symmetrically distributed front and back. Brake pads are arranged inside the four universal wheels.

[0013] Preferably, chutes adapted to the movement track of the lifting plate are provided on the front side walls of the two limiting frames. A maintenance box door is arranged on the front side wall of the motor fixed frame.

[0014] Preferably, a number of through holes adapted to the auxiliary rollers one by one are provided inside the lifting plate.

[0015] Preferably, a rotating knob is fixedly connected to the top of both the threaded shaft and the second threaded rod. Two sections of threads with opposite directions are provided on the outer part of the second threaded rod, and the lengths of the two sections of threads are equal.

[0016] Preferably, a number of threaded grooves that are equidistantly distributed up and down are provided on the front side wall of the slide rail, and the threaded grooves are adapted to the first limiting bolt.

[0017] Preferably, a number of threaded holes that are equidistantly distributed front and back are provided on the top of the slide frame, and the threaded holes are adapted to the second limiting bolts. Long strip holes are provided on the opposite sides of the two slide frames.

[0018] Preferably, anti-slip pads are fixedly connected to the opposite sides of the front and back partition plates, and the thickness of the anti-slip pads is two centimeters.

[0019] A control method for a cargo transportation loading and lifting device, characterized by comprising the following steps:

[0020] 1) First, the staff moves the lifting device to a suitable position, then rotates the threaded shaft to drive the stabilizing block to move downward and contact the ground to ensure the stability of the device, and then transports the goods to the top of the lifting plate.

[0021] 2) First, the staff rotates the second threaded rod to drive the upper and lower threaded blocks to move relatively. With the cooperation of the threaded blocks, X-shaped connecting rods and sliders, the two adjusting plates move relatively, and then the front and rear baffle plates are adjusted to fix and limit the goods.

[0022] 3) Start the servo motor through the control switch to drive the first threaded rod to rotate, so that the lifting plate drives the goods to be lifted.

[0023] 4) First, operate the limit component to disconnect from the goods. At this time, through the setting of the auxiliary pushing component, the auxiliary rollers support the goods, and the staff can push the goods off the lifting plate.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, the present invention provides a goods transportation and loading lifting device, which has the following

[0026] beneficial effects:

[0027] 1. For this goods transportation and loading lifting device, by setting the limit component, first ensure that the goods are between the two adjusting plates. At this time, rotate the second threaded rod to drive the upper and lower threaded blocks to move relatively. With the cooperation of the threaded blocks, X-shaped connecting rods and sliders, the two adjusting plates move relatively until the goods are between the front and rear baffle plates. Then, unscrew the first limit bolt from the sliding seat, adjust the height position of the sliding seat to adapt to goods of different heights. After the adaptation is completed, connect the first limit bolt to the sliding seat and the slide rail again. Finally, rotate the second limit bolt to remove it from the sliding frame, then adjust the front and rear baffle plates to closely fit the goods, and finally install the second limit bolt on the sliding frame, thereby achieving the purpose of fixing and limiting goods of different sizes and improving the practicability of the device.

[0028] 2. For this goods transportation and loading lifting device, by setting the auxiliary pushing component, after lifting to the required height, separate the limit component from the goods, and then start the electric hydraulic push rod to drive the sliding plate to move upward. The sliding plate drives a number of auxiliary rollers to move upward to support the goods. With the cooperation of the auxiliary rollers, the staff can push the goods off the lifting plate, thereby achieving the purpose of fixing and limiting the goods. Through the setting of the stabilizing component, rotate the threaded shaft to drive the stabilizing block to move downward, expand the contact area between the device and the ground, ensure the stable effect of the device, and further improve the practicability of the device. Description of the Drawings

[0029] Figure 1Schematic structural diagram of a cargo transportation loading and lifting device proposed by the present invention;

[0030] Figure 2 A cargo transportation loading and lifting device proposed by the present invention Figure 1 Enlarged schematic diagram at position A in;

[0031] Figure 3 Partial top view schematic diagram of the connection between the carriage and the baffle of a cargo transportation loading and lifting device proposed by the present invention.

[0032] In the figure: 1, base; 2, limit frame; 3, connecting cross plate; 4, lifting assembly; 41, fixed frame; 42, motor fixing frame; 43, servo motor; 44, first threaded rod; 5, lifting plate; 6, auxiliary pushing assembly; 61, positioning plate; 62, sliding plate; 63, auxiliary roller; 64, electric hydraulic push rod; 7, stabilizing assembly; 71, rectangular block; 72, threaded shaft; 73, stabilizing block; 8, fixed vertical plate; 9, limiting assembly; 91, positioning block; 92, second threaded rod; 93, threaded block; 94, adjusting plate; 95, slider; 96, X-shaped connecting rod; 97, slide rail; 98, sliding seat; 99, first limit bolt; 910, carriage; 911, baffle; 912, second limit bolt. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1-3, A goods transportation loading and lifting device, including a base 1. Both the left and right sides of the bottom of the base 1 are fixedly connected with two universal wheels that are symmetrically distributed front and back. Brake pads are arranged inside all four universal wheels. Both the left and right sides of the top of the base 1 are provided with limit frames 2. The top of the left limit frame 2 is provided with a connecting cross plate 3 fixedly connected to the top of the right limit frame 2. A lifting assembly 4 fixedly connected to the top of the base 1 is arranged on the top of the connecting cross plate 3. A lifting plate 5 is arranged on the front side wall of the lifting assembly 4. The lifting plate 5 is slidably connected to the front side walls of the two limit frames 2. The lifting assembly 4 includes a fixed frame 41. A fixed frame 41 located between the two limit frames 2 is fixedly connected between the bottom of the connecting cross plate 3 and the top of the base 1. A motor fixing frame 42 is fixedly connected to the top of the connecting cross plate 3. Chutes adapted to the movement track of the lifting plate 5 are opened on the front side walls of the two limit frames 2. An inspection box door is arranged on the front side wall of the motor fixing frame 42. A servo motor 43 is fixedly connected to the inner top wall of the motor fixing frame 42. The output shaft of the servo motor 43 is fixedly connected to a first threaded rod 44 rotatably connected to the inner bottom wall of the fixed frame 41. The lifting plate 5 is threadedly connected to the outside of the first threaded rod 44.

[0035] An auxiliary pushing assembly 6 is arranged at the bottom of the lifting plate 5. The auxiliary pushing assembly 6 includes a positioning plate 61. Both the left and right sides of the bottom of the lifting plate 5 are fixedly connected with a positioning plate 61. A sliding plate 62 is fixedly connected between the two positioning plates 61. A number of auxiliary rollers 63 are fixedly connected to the top of the sliding plate 62. A number of through holes adapted to the auxiliary rollers 63 one by one are opened in the lifting plate 5. Electric hydraulic push rods 64 are fixedly connected to both the left and right sides of the bottom of the lifting plate 5. The output ends of the two electric hydraulic push rods 64 are fixedly connected to the top of the sliding plate 62.

[0036] Both the left and right side walls of the base 1 are provided with two stabilizing assemblies 7 that are symmetrically distributed front and back. The stabilizing assembly 7 includes a rectangular block 71. Both the left and right side walls of the base 1 are fixedly connected with two rectangular blocks 71 that are symmetrically distributed front and back. A threaded shaft 72 with one end extending to its bottom is threadedly connected to the top of the rectangular block 71. The bottom of the threaded shaft 72 is movably connected to a stabilizing block 73.

[0037] On both the left and right sides of the top of the lifting plate 5, there are fixed vertical plates 8. On the opposite sides of the two fixed vertical plates 8, there are limiting components 9 slidably connected to the top of the lifting plate 5. The limiting component 9 includes positioning blocks 91. On the opposite sides of the two fixed vertical plates 8, there are fixedly connected positioning blocks 91. At the top of the positioning block 91, there is a second threaded rod 92 rotatably connected to the top of the lifting plate 5. At the top of the threaded shaft 72 and the top of the second threaded rod 92, there are rotatable knobs fixedly connected. The outer part of the second threaded rod 92 is provided with two sections of threads with opposite directions, and the lengths of the two sections of threads are equal. The outer part of the second threaded rod 92 is threadedly connected with two threaded blocks 93 distributed symmetrically up and down. On the top of the lifting plate 5, there are two adjusting plates 94 distributed symmetrically left and right and slidably connected. On the opposite sides of the two adjusting plates 94, there are two sliders 95 distributed symmetrically up and down and slidably connected. Between the upper and lower threaded blocks 93 and the upper and lower sliders 95, there are X-shaped connecting rods 96 hinged. On the opposite sides of the two adjusting plates 94, there are fixedly connected slide rails 97. The outer part of the slide rail 97 is slidably connected with a slide seat 98. The front side wall of the slide seat 98 is threadedly connected with a first limiting bolt 99 threadedly connected to the inner wall of the slide rail 97. On the front side wall of the slide rail 97, there are a number of threaded grooves distributed equidistantly up and down, and the threaded grooves are adapted to the first limiting bolt 99. On the opposite sides of the two slide seats 98 and the opposite sides of the two adjusting plates 94, there are fixedly connected slide frames 910. Inside the inner walls of the two slide frames 910, there are two blocking plates 911 distributed symmetrically front and back and slidably connected. On the opposite sides of the front and back two blocking plates 911, there are fixedly connected anti-slip pads, and the thickness of the anti-slip pads is two centimeters. The opposite sides of the left and right two blocking plates 911 respectively extend to the outside of the two slide frames 910. On the top of a single slide frame 910, there are two second limiting bolts 912 threadedly connected and respectively threadedly connected to the inside of the front and back two blocking plates 911. On the top of the slide frame 910, there are a number of threaded holes distributed equidistantly front and back, and the threaded holes are adapted to the second limiting bolts 912. On the opposite sides of the two slide frames 910, there are long strip holes.

[0038] A control method for a goods transportation loading and lifting device, characterized by comprising the following steps:

[0039] 1) First, the staff moves the lifting device to a suitable position, then rotates the threaded shaft 72 to drive the stabilizing block 73 to move down and contact the ground to ensure the stability of the device, and then transports the goods to the top of the lifting plate 5;

[0040] 2) The staff first rotates the second threaded rod 92 to drive the upper and lower two threaded blocks 93 to move relatively. Under the cooperation of the threaded block 93, the X-shaped connecting rod 96 and the slider 95, the two adjusting plates 94 move relatively, and then adjust the front and back two blocking plates 911 to fix and limit the goods;

[0041] 3) Start the servo motor 43 by controlling the switch to drive the first threaded rod 44 to rotate, so that the lifting plate 5 drives the goods to be lifted;

[0042] 4) First, operate the limit component 9 to disconnect from the goods. At this time, through the setting of the auxiliary pushing component 6, the auxiliary roller 63 supports the goods, and the staff can push the goods off the lifting plate 5.

[0043] It should be noted that the servo motor 43 and the electric hydraulic push rod 64 in this application document are both externally connected with control switches and drive power supplies, and both the servo motor 43 and the electric hydraulic push rod 64 are conventional known devices. The standard parts used in this application document can be purchased from the market. The specific connection methods of each part are all connected by conventional means such as bolts, rivets, and welding in the prior art. Moreover, the machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art. The content not described in detail in the description belongs to the prior art well-known to those skilled in the art and will not be specifically described here.

[0044] In summary, for the goods transportation loading and lifting device, by setting the limiting component 9, first ensure that the goods are located between the two adjusting plates 94. At this time, rotate the second threaded rod 92 to drive the upper and lower threaded blocks 93 to move relatively. With the cooperation of the threaded block 93, the X-shaped connecting rod 96 and the slider 95, the two adjusting plates 94 move relatively until the goods are located between the front and rear blocking plates 911. Then, unscrew the first limit bolt 99 from the sliding seat 98, adjust the height position of the sliding seat 98 to adapt to goods of different heights. After the adaptation is completed, reconnect the first limit bolt 99 to the sliding seat 98 and the slide rail 97. Finally, rotate the second limit bolt 912 and remove it from the sliding frame 910, then adjust the front and rear blocking plates 911 to closely fit the goods, and finally install the second limit bolt 912 on the sliding frame 910, thereby achieving the purpose of fixing and limiting goods of different sizes, improving the practicality of the device. By setting the auxiliary pushing component 6, after lifting to the required height, separate the limiting component 9 from the goods, then start the electric hydraulic push rod 64 to drive the sliding plate 62 to move upward, and the sliding plate 62 drives a number of auxiliary rollers 63 to move upward to support the goods. With the cooperation of the auxiliary rollers 63, the staff can push the goods off the lifting plate 5, thereby achieving the purpose of fixing and limiting the goods. Through the setting of the stabilizing component 7, rotate the threaded shaft 72 to drive the stabilizing block 73 to move downward, expanding the contact area between the device and the ground, ensuring the stability effect of the device, and further improving the practicality of the device. This solves the problems that for the existing goods transportation loading and lifting devices, after lifting the goods to the specified height, multiple staff members are still required to move the goods off the lifting device, which is relatively time-consuming and laborious, reducing the goods transportation efficiency, and most of the existing goods transportation loading and lifting devices do not have a fixing function, and the goods are prone to displacement and falling during lifting, affecting the use of the device.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A goods transportation loading and lifting device, comprising a base (1), characterized in that: On the left and right sides of the top of the base (1), limit frames (2) are provided. On the top of the left limit frame (2), there is a connecting cross plate (3) fixedly connected to the top of the right limit frame (2). On the top of the connecting cross plate (3), a lifting assembly (4) fixedly connected to the top of the base (1) is provided. On the front side wall of the lifting assembly (4), there is a lifting plate (5). The lifting plate (5) is slidably connected to the front side walls of the two limit frames (2). At the bottom of the lifting plate (5), an auxiliary pushing assembly (6) is provided. On the left and right side walls of the base (1), there are two stabilizing assemblies (7) arranged symmetrically in the front and back. On the left and right sides of the top of the lifting plate (5), fixed vertical plates (8) are provided. On the opposite sides of the two fixed vertical plates (8), limit assemblies (9) slidably connected to the top of the lifting plate (5) are provided; The lifting assembly (4) includes a fixed frame (41). A fixed frame (41) located between the two limit frames (2) is fixedly connected between the bottom of the connecting cross plate (3) and the top of the base (1). The top of the connecting cross plate (3) is fixedly connected with a motor fixing frame (42). The inner top wall of the motor fixing frame (42) is fixedly connected with a servo motor (43). The output shaft of the servo motor (43) is fixedly connected with a first threaded rod (44) rotatably connected to the inner bottom wall of the fixed frame (41). The lifting plate (5) is threadedly connected to the outside of the first threaded rod (44); The auxiliary pushing assembly (6) includes a positioning plate (61). On the left and right sides of the bottom of the lifting plate (5), positioning plates (61) are fixedly connected. A sliding plate (62) is fixedly connected between the two positioning plates (61). The top of the sliding plate (62) is fixedly connected with a number of auxiliary rollers (63). On the left and right sides of the bottom of the lifting plate (5), electric hydraulic push rods (64) are fixedly connected. The output ends of the two electric hydraulic push rods (64) are fixedly connected to the top of the sliding plate (62); The stabilizing assembly (7) includes a rectangular block (71). On the left and right side walls of the base (1), two rectangular blocks (71) arranged symmetrically in the front and back are fixedly connected. The top of the rectangular block (71) is threadedly connected with a threaded shaft (72) extending to its bottom. The bottom of the threaded shaft (72) is movably connected with a stabilizing block (73); The limiting component (9) includes a positioning block (91). The positioning blocks (91) are fixedly connected to the opposite sides of the two fixed vertical plates (8). The top of the positioning block (91) is movably connected to a second threaded rod (92) that is rotatably connected to the top of the lifting plate (5). The outer part of the second threaded rod (92) is threadedly connected with two threaded blocks (93) that are symmetrically distributed up and down. The top of the lifting plate (5) is slidably connected with two adjusting plates (94) that are symmetrically distributed left and right. The opposite sides of the two adjusting plates (94) are each slidably connected with two sliders (95) that are symmetrically distributed up and down. An X-shaped connecting rod (96) is hinged between the upper and lower threaded blocks (93) and the upper and lower sliders (95). The opposite sides of the two adjusting plates (94) are each fixedly connected with a slide rail (97). The outer part of the slide rail (97) is slidably connected with a slide seat (98). The front side wall of the slide seat (98) is threadedly connected with a first limit bolt (99) that is threadedly connected with the inner wall of the slide rail (97). The opposite sides of the two slide seats (98) and the opposite sides of the two adjusting plates (94) are each fixedly connected with a slide frame (910). The inner walls of the two slide frames (910) are each slidably connected with two baffle plates (911) that are symmetrically distributed front and back. The opposite sides of the left and right baffle plates (911) respectively extend to the outside of the two slide frames (910). The top of a single slide frame (910) is threadedly connected with two second limit bolts (912) that are respectively threadedly connected with the interiors of the front and back baffle plates (911).

2. The cargo transportation loading and lifting device according to claim 1, characterized in that: On the left and right sides of the bottom of the base (1), there are two sets of universal wheels that are symmetrically distributed front and back. Brake pads are arranged inside the four universal wheels.

3. A goods transportation loading and lifting device according to claim 1, characterized in that: Chutes adapted to the movement trajectories of the lifting plate (5) are opened on the front side walls of the two limiting frames (2). A maintenance box door is arranged on the front side wall of the motor fixing frame (42).

4. A goods transportation loading and lifting device according to claim 1, characterized in that: A number of perforations adapted to the auxiliary rollers (63) one by one are opened inside the lifting plate (5).

5. The goods transportation loading and lifting device according to claim 1, characterized in that: Rotating knobs are fixedly connected to the tops of the threaded shaft (72) and the second threaded rod (92). Two sections of threads with opposite directions are opened on the outer part of the second threaded rod (92), and the lengths of the two sections of threads are equal.

6. The goods transportation loading and lifting device according to claim 1, characterized in that: A number of threaded grooves that are equally spaced up and down are opened on the front side wall of the slide rail (97), and the threaded grooves are adapted to the first limit bolt (99).

7. A goods transportation loading and lifting device according to claim 1, characterized in that: A number of threaded holes that are equally spaced front and back are opened on the top of the slide frame (910), and the threaded holes are adapted to the second limit bolt (912). Long strip holes are opened on the opposite sides of the two slide frames (910).

8. A goods transportation loading and lifting device according to claim 1, characterized in that: Anti-slip pads are fixedly connected to the opposite sides of the front and back baffle plates (911), and the thickness of the anti-slip pads is two centimeters.

9. A control method for a loading and lifting device for cargo transportation, characterized in that, Including the following steps: 1) First, the staff moves the lifting device to a suitable position, then rotates the threaded shaft (72) to drive the stabilizing block (73) to move down and contact the ground to ensure the stability of the device, and then transports the goods to the top of the lifting plate (5). 2) First, the staff rotates the second threaded rod (92) to drive the upper and lower threaded blocks (93) to move relatively. With the cooperation of the threaded blocks (93), X-shaped connecting rods (96) and sliders (95), the two adjusting plates (94) move relatively, and then the front and rear baffle plates (911) are adjusted to fix and limit the goods. 3) The servo motor (43) is started through the control switch to drive the first threaded rod (44) to rotate, so that the lifting plate (5) drives the goods to be lifted. 4) First, the limiting component (9) is operated to disconnect from the goods. At this time, due to the setting of the auxiliary pushing component (6), the auxiliary rollers (63) support the goods, and the staff can push the goods off the lifting plate (5).

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