Movable packaging platform for asparagus lettuce harvesting

Abstract

The utility model discloses a movable packaging platform for asparagus lettuce harvesting, and belongs to the field of agricultural machinery. The device comprises a movable frame, an all-dimensional object detecting device, an asparagus lettuce cutting and temporary storage device and an asparagus lettuce collecting device. The four Mecanum mother wheels serve as driving wheels and are fixed to the head portion and the tail portion of the lower end face of the movable frame chassis correspondingly, the omni-directional object detecting device is fixed to the upper end face of the frame chassis, the asparagus lettuce cutting and temporary storage device is installed on the omni-directional object detecting device, and the asparagus lettuce collecting device is fixed to the head portion of the upper end face of the frame cover. The omnibearing object detecting device is installed on the movable frame through a rotating shaft sleeve, and the asparagus lettuce cutting and temporary storage device is installed on the omnibearing object detecting device through a steel cable on a winding wheel. The problem that asparagus lettuce needs to be manually separated from old leaves after being harvested by other machines can be effectively solved, asparagus lettuce harvesting and packaging can be rapidly achieved, labor cost is greatly saved, and electric drive conforms to the concept of energy conservation and emission reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a movable packaging platform for harvesting lettuce. Background Art

[0002] Lettuce is a common vegetable belonging to the Asteraceae family. It is an annual plant cultivated for its young leaves and stems. The young leaves are commonly used in salads, sandwiches, burgers, and other foods. Its light green leaves are crisp and tender, rich in vitamins, minerals, and fiber, making it considered a nutritious vegetable. Lettuce is a widely consumed vegetable worldwide, with a huge demand in restaurants, supermarkets, and homes. Its adaptability allows it to grow in diverse climates and soil conditions, providing farmers with a diverse agricultural product option. However, in the current context of an aging population, harvesting lettuce requires a significant amount of manual labor. Manual harvesting often uses sharp tools such as sickles, resulting in low efficiency. Furthermore, the harvested lettuce needs to be transported and packaged manually, significantly increasing production costs. As a vegetable, the quality of lettuce is highly dependent on its freshness. Therefore, timely harvesting is crucial to maintaining product quality. Traditional manual or semi-automated lettuce harvesting methods often include unripe pods, resulting in significant economic losses. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the utility model provides a movable packaging platform for lettuce harvesting, which solves the problem that the existing manual harvesting of lettuce is inefficient and that traditional manual carts or semi-automatic carts for harvesting lettuce often harvest immature lettuce together.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a movable packaging platform for harvesting lettuce, comprising a movable frame, an omnidirectional object detection device, a temporary storage device for cutting lettuce, and a lettuce collecting device;

[0007] The movable frame includes a Mecanum wheel, a wheel flange, a first DC motor, a base, a bottom rib of a vehicle plate, a cooling fan, and a frame cover; the Mecanum wheels are four, and are respectively fixed to the front and rear ends of the lower end surface of the base of the movable frame as driving wheels. The first DC motor drives the Mecanum wheels to rotate, and the rotation of the Mecanum wheels causes the movable frame to move; an omnidirectional object detection device is fixedly provided on the upper end surface of the base; and a lettuce collecting device is provided on the upper end surface of the frame cover;

[0008] The omnidirectional object-finding device includes a rotary drive assembly, a rotating sleeve, a fixed shaft, a support column, an upper slideway, a traveling vehicle traveling assembly, a lifting drive assembly and a reinforcing rib; the omnidirectional object-finding device is equipped with a winding wheel and a steel cable, so that the lettuce cutting temporary storage device is installed on the omnidirectional object-finding device;

[0009] The omnidirectional object detection device is installed on the movable frame 1 through a rotating sleeve; the rotary drive assembly is used to drive the omnidirectional object detection device to rotate; the traveling assembly is used to drive the lettuce cutting and temporary storage device to move on the upper slide; the lifting drive assembly is used to drive the lettuce cutting and temporary storage device to move up and down in the spatial orientation;

[0010] The lettuce cutting and temporary storage device includes a material bin, a hanging ring, a lettuce cutting assembly and a guide frame, and the lettuce cutting assembly is used to drive a blade to cut the lettuce;

[0011] The lettuce collecting device comprises a collecting frame which is arranged on the upper end surface of the frame cover and is used for collecting the cut lettuces.

[0012] Preferably, the bottom rib of the vehicle plate is fixed to the lower end of the base of the movable frame, and the first DC motor is connected to the Mecanum wheel through a rotating shaft.

[0013] Preferably, the rotary drive assembly includes a rotary worm gear motor, a rotary synchronous pulley, a rotary synchronous belt and a rotary motor bracket, wherein the working end of the rotary worm gear motor is connected to the rotary synchronous pulley.

[0014] Preferably, the rotating sleeve is connected to a support column, and a reinforcing rib is fixed between the support column and the upper slideway.

[0015] Preferably, the traveling vehicle traveling assembly includes a traveling worm gear motor, a driving wheel, a driven wheel, a rotating wheel, a spacer sleeve, a screw and a traveling vehicle side plate; wherein, the traveling worm gear motor is connected to the rotating wheel, the rotating wheel is engaged with the driving wheel, and the screw is fixed to the lower end surface of the bottom surface of the upper slide.

[0016] Preferably, the lifting drive assembly includes a second DC motor, a lifting synchronous pulley, a lifting synchronous belt, a winding wheel and a steel cable, and the steel cable is wound on the winding wheel.

[0017] Preferably, the lettuce cutting assembly includes a DC reduction motor, a plurality of cutters, a plurality of gears, a cutting upper cover, a cutting lower cover and a plurality of positioning pins, the rotating shaft of the DC reduction motor is connected to the gears, and the cutter is installed between the cutting upper cover and the cutting lower cover.

[0018] Preferably, the guide frame is installed on the lettuce cutting assembly, and the guide frame is arranged obliquely downward.

[0019] Preferably, there are two driving wheels, which are located on both sides of the rotating wheel, installed on the upper end surface of the bottom surface of the upper slide, and meshed with the rotating wheel respectively. There are two driven wheels, which are installed on the upper end surface of the bottom surface of the upper slide, and are symmetrically distributed with the driving wheel. There are two screw rods, which are installed between the side plates of the traveling vehicle.

[0020] Preferably, there are two lifting synchronous pulleys, the rotating shaft of the second DC motor is connected to the first lifting synchronous pulley, the outer surface of the first lifting synchronous pulley is installed with a lifting synchronous belt, the other end of the lifting synchronous belt is installed with a second lifting synchronous pulley, and the second lifting synchronous pulley is installed on the rotating shaft of the winding wheel.

[0021] (3) Beneficial effects

[0022] The utility model provides a movable packaging platform for harvesting lettuce. It has the following beneficial effects: it can quickly select mature lettuce and harvest and transport it to a collection frame while minimizing manual intervention, thereby improving economic benefits for growers;

[0023] (1) The application uses a movable frame and a lettuce collection device to enable the cutting, collection, and packaging of lettuce on the movable frame, as well as the transfer between the field and the manual packaging and delivery point. The Mecanum wheels can be used to achieve small turns or even turn-arounds in narrow fields.

[0024] (2) The application uses an all-round detection device to achieve all-round positioning harvesting. It can also detect the maturity of lettuce by placing sensors and cameras on the all-round detection device, thereby achieving accurate harvesting and reducing the losses caused to farmers due to incorrect harvesting. By installing reinforcing ribs between the support column and the upper slide, it can prevent the lettuce cutting and temporary storage device from being overloaded, causing the center of gravity of the movable platform to tilt forward;

[0025] (3) The application uses a lettuce cutting and temporary storage device to harvest lettuce. The guide frame under the material bin can guide the lettuce into the material bin. Due to the gravity of the lettuce cutting and temporary storage device, some lettuce leaves can be removed. The guide frame has a certain height from the ground, which can realize that the DC reduction motor drives the gear to rotate so that several positioning pins move in an arc. The several positioning pins drive several cutters to move in a straight line to realize the blade cutting the lettuce. The cut lettuce is stored in the material bin, and then the cut lettuce is sent to the lettuce collection device through the omnidirectional detection device.

[0026] (4) This application realizes the removal of lettuce leaves, harvesting, collection and packaging through the overall coordination of a movable frame, an orientation detection device, a lettuce cutting and temporary storage device and a lettuce collecting device. This is in line with the concept of agricultural machinery automation and greatly reduces the burden on farmers. At the same time, the entire device is electrically driven and conforms to the concept of green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 This is the main view of the overall structure of the utility model;

[0029] Figure 3 This is a schematic structural diagram of the movable frame of the utility model;

[0030] Figure 4 This is a schematic structural diagram of the omnidirectional object detection device of the present utility model;

[0031] Figure 5 This is a schematic structural diagram of the temporary storage device for cut lettuce of the present invention;

[0032] Figure 6 This is a schematic structural diagram of the rotary drive assembly of the present invention;

[0033] Figure 7 This is a structural diagram of the traveling assembly of the traveling vehicle of the present utility model;

[0034] Figure 8 This is a schematic structural diagram of the lifting drive assembly of the present utility model;

[0035] Figure 9 This is a schematic structural diagram of the lettuce cutting assembly of the present invention;

[0036] Figure 10 This is a flow chart of the test steps of the present utility model;

[0037] In the figure: 1, movable frame; 1a, Mecanum wheel; 1b, wheel flange; 1c, first DC motor; 1d, base; 1e, bottom rib of vehicle plate; 1f, cooling fan; 1g, frame cover;

[0038] 2. All-round exploration device;

[0039] 2a, rotary drive assembly; 2a1, rotary worm gear motor; 2a2, rotary timing pulley; 2a3, rotary timing belt; 2a4, rotary motor bracket;

[0040] 2b, rotating sleeve; 2c, fixed shaft; 2d, support column; 2e, upper slide;

[0041] 2f, traveling assembly of traveling vehicle; 2f1, traveling worm gear motor; 2f2, driving wheel; 2f3, driven wheel; 2f4, rotating wheel; 2f5, spacer; 2f6, lead screw; 2f7, traveling vehicle side plate;

[0042] 2g, lifting drive assembly; 2g1, second DC motor; 2g2, lifting synchronous pulley; 2g21, first lifting synchronous pulley; 2g22, second lifting synchronous pulley; 2g3, lifting synchronous belt; 2g4, winding wheel; 2g5, steel cable;

[0043] 2h, reinforcement;

[0044] 3. Lettuce cutting and temporary storage device; 3a. Material bin; 3b. Lifting ring; 3c. Lettuce cutting assembly; 3c1. DC reduction motor; 3c2. Several cutters; 3c3. Several gears; 3c4. Cutting upper cover; 3c5. Cutting lower cover; 3d. Guide frame;

[0045] 4. Lettuce collecting device; 4a. Collection frame. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] See also Figure 1-10 The utility model provides a technical solution, a movable packaging platform for harvesting lettuce, comprising a movable frame 1, an omnidirectional object detection device 2, a lettuce cutting temporary storage device 3 and a lettuce collecting device 4;

[0048] The movable frame 1 includes Mecanum wheels 1a, a wheel flange 1b, a first DC motor 1c, a base 1d, a bottom rib 1e, a cooling fan 1f, and a frame cover 1g. Four Mecanum wheels 1a serve as driving wheels, fixed to the front and rear ends of the lower end surface of the base 1d of the movable frame 1. The first DC motor 1c drives the Mecanum wheels 1a to rotate, which in turn causes the movable frame 1 to move. An omnidirectional object detection device 2 is fixed to the upper end surface of the base 1d. A lettuce collection device 4 is provided on the upper end surface of the frame cover 1g.

[0049] The omnidirectional exploration device 2 includes a rotary drive assembly 2a, a rotating sleeve 2b, a fixed shaft 2c, a support column 2d, an upper slide 2e, a traveling vehicle assembly 2f, a lifting drive assembly 2g, and a reinforcing rib 2h. The omnidirectional exploration device 2 is equipped with a winding wheel 2g4 and a steel cable 2g5, so that the lettuce cutting temporary storage device 3 is installed on the omnidirectional exploration device 2.

[0050] The omnidirectional object detection device 2 is mounted on the movable frame 1 via a rotating sleeve 2b; the rotary drive assembly 2a is used to drive the omnidirectional object detection device 2 to rotate; the traveling assembly 2f is used to drive the lettuce cutting and temporary storage device 3 to move on the upper slide 2e; the lifting drive assembly 2g is used to drive the lettuce cutting and temporary storage device 3 to move up and down in the spatial orientation;

[0051] The lettuce cutting and temporary storage device 3 includes a material bin 3a, a hanging ring 3b, a lettuce cutting component 3c and a guide frame 3d. The lettuce cutting component 3c is used to drive the blade to cut the lettuce;

[0052] The lettuce collecting device 4 includes a collecting frame 4a, which is arranged on the upper end surface of the frame cover 1g and is used to collect the cut lettuce.

[0053] The bottom rib 1e of the vehicle plate is fixed to the lower end of the base 1d of the movable frame 1, and the first DC motor 1c is connected to the Mecanum wheel 1a through a rotating shaft.

[0054] The rotary drive assembly 2a includes a rotary worm gear motor 2a1, a rotary synchronous pulley 2a2, a rotary synchronous belt 2a3 and a rotary motor bracket 2a4, wherein the working end of the rotary worm gear motor 2a1 is connected to the rotary synchronous pulley 2a2.

[0055] The rotating sleeve 2b is connected to the support column 2d, and a reinforcing rib 2h is fixed between the support column 2d and the upper slide 2e.

[0056] The traveling assembly 2f of the traveling vehicle includes a traveling worm gear motor 2f1, a driving wheel 2f2, a driven wheel 2f3, a rotating wheel 2f4, a spacer 2f5, a screw 2f6 and a traveling vehicle side plate 2f7; wherein, the traveling worm gear motor 2f1 is connected to the rotating wheel 2f4, the rotating wheel 2f4 is engaged with the driving wheel 2f2, and the screw 2f6 is fixed to the lower end surface of the bottom surface of the upper slide 2e.

[0057] The lifting drive assembly 2g includes a second DC motor 2g1, a lifting synchronous pulley 2g2, a lifting synchronous belt 2g3, a winding wheel 2g4 and a steel cable 2g5. The steel cable 2g5 is wound around the winding wheel 2g4.

[0058] The lettuce cutting assembly 3c includes a DC reduction motor 3c1, several cutters 3c2, several gears 3c3, a cutting upper cover 3c4, a cutting lower cover 3c5 and several positioning pins 3c6. The rotating shaft of the DC reduction motor 3c1 is connected to the gear 3c3, and the cutter 3c2 is installed between the cutting upper cover 3c4 and the cutting lower cover 3c5.

[0059] The guide frame 3d is installed on the lettuce cutting assembly 3c, and the guide frame 3d is set obliquely downward.

[0060] There are two driving wheels 2f2, which are located on both sides of the rotating wheel 2f4 and are installed on the upper end surface of the bottom surface of the upper slide 2e, and are respectively engaged with the rotating wheel 2f4. There are two driven wheels 2f3, which are installed on the upper end surface of the bottom surface of the upper slide 2e and are symmetrically distributed with the driving wheel 2f2. There are two screw rods 2f6, which are installed between the side plates 2f7 of the traveling vehicle.

[0061] There are two lifting synchronous pulleys 2g2. The rotating shaft of the second DC motor 2g1 is connected to the first lifting synchronous pulley 2g21. The outer surface of the first lifting synchronous pulley 2g21 is installed with a lifting synchronous belt 2g3. The other end of the lifting synchronous belt 2g3 is installed with a second lifting synchronous pulley 2g22. The second lifting synchronous pulley 2g22 is installed on the rotating shaft of the winding wheel 2g4.

[0062] Example 1: When in use, the movable packaging platform for harvesting lettuce is placed in the lettuce field, the movable frame 1 is used as a walking device, and two cooling fans 1f are fixed on the upper end surface of the base 1d, and the cooling fan 1f is installed in the frame cover 1g. The lower end surface of the base 1d is provided with four first DC motors 1c, and the four first DC motors 1c are connected to four Mecanum wheels 1a. The staff controls the Mecanum wheels 1a of the entire movable frame 1 through a mobile phone to drive the device to turn and move to the position specified by the staff. The omnidirectional exploration device 2 serves as a load-bearing and positioning device, which is fixed to the base 1d through a rotating shaft sleeve 2b. The rotary worm motor 2a1 drives its own rotating shaft to rotate, thereby driving the rotary synchronous pulley 2a2 to rotate. The rotary synchronous pulley 2a2 is installed with a rotary synchronous belt 2a3. The rotation of the rotary synchronous belt 2a3 drives the rotation of the rotary shaft sleeve 2b to achieve omnidirectional steering. The rotary shaft sleeve 2b is fixedly connected to a support column 2d, which supports An upper slide 2e is fixed to the upper end of the column 2d, wherein the upper slide 2e is connected to the traveling assembly 2f of the traveling carriage, and a traveling worm gear motor 2f1 is installed on the side of the traveling assembly 2f of the traveling carriage, and the traveling worm gear motor 2f1 is connected to the rotating wheel 2f4. The rotation of the gear of the rotating wheel 2f4 drives the driving wheels 2f2 on both sides to rotate, and drives the driven wheels 2f3 to rotate through the fixed connection of the screw rod 2f6, thereby realizing the movement of the traveling carriage on the upper slide 2e, and a second DC motor 2g1 is fixed to the lower side of the traveling carriage, and the second DC motor 2g1 is connected to a lifting synchronous pulley 2g2, and the lifting synchronous pulley 2g2 is connected to the winding wheel 2g4. The rotation of the second DC motor 2g1 drives its own rotating shaft to move, and its own rotating shaft drives the lifting synchronous pulley 2g2 to rotate, and a lifting synchronous belt 2g3 is installed on the lifting synchronous pulley 2g21. The rotation of the lifting synchronous belt 2g3 drives the lifting synchronous pulley 2g22 on the other side to rotate, thereby driving the winding wheel 2g4 to release the wire. The lettuce cutting and storage device 3 is transported at a specified height. A guide frame 3d is installed under the lettuce cutting and storage device 3. The guide frame 3d guides the upright lettuce into the material bin 3a. At the same time, due to the gravity of the lettuce cutting and storage device 3, the root leaves can be pushed to the surroundings to achieve the purpose of leaf removal. The lettuce cutting and storage device 3 serves as a cutting device. A lettuce cutting component 3c is connected under the material bin 3a. A DC reduction motor 3c1 is fixed to the upper end surface of the lettuce cutting component 3c. The rotation of the DC reduction motor 3c1 drives the gear movement, and the gear movement drives several positioning pins. 3c6 moves, and a number of positioning pins 3c6 are installed on a number of cutters 3c2, so that the movement of the number of positioning pins 3c6 drives the number of cutters 3c2 to cut, and the number of cutters 3c2 closes toward the central axis to achieve lettuce cutting. The cut lettuce is stored in the lettuce cutting temporary storage device 3, and the all-round detection device 2 transports the lettuce cutting temporary storage device 3 above the lettuce collection frame 4a. The lettuce collection device 4 serves as a collection device. The collection frame 4a is installed on the upper end surface of the frame cover 1g. The DC reduction motor 3c1 is reversed, and the number of cutters 3c2 moves toward the outside of the central axis.The lettuce falls into the lettuce collecting device 4, and the above process is repeated. When the collection box 4a is full, the mobile packaging platform for the harvested lettuce is transported to the manual packaging and shipping point, and the collected collection box 4a is manually packaged and shipped.

[0063] In summary, the device can quickly select mature lettuce and harvest and transport it to the collection frame while minimizing manual intervention, thereby improving economic benefits for growers.

[0064] The application uses a movable frame and a lettuce collection device to enable the cutting, collection, and packaging of lettuce on the movable frame, as well as the transfer between the field and the manual packaging and delivery point. The Mecanum wheels can be used to achieve small turns or even turn-arounds in narrow fields.

[0065] The application uses an all-round detection device to achieve all-round positioning harvesting. Sensors and cameras can also be placed on the all-round detection device to detect the maturity of the lettuce, achieving precise harvesting and reducing losses to farmers due to incorrect harvesting. By installing reinforcement ribs between the support column and the upper slide, the lettuce cutting and temporary storage device can be prevented from being overloaded, causing the center of gravity of the movable platform to tilt forward.

[0066] This application uses a lettuce cutting and temporary storage device to harvest lettuce. The guide frame under the material bin can guide the lettuce into the material bin. Due to the gravity of the lettuce cutting and temporary storage device, some lettuce leaves can be removed. The guide frame is at a certain height above the ground, and a DC reduction motor can be used to drive the gear to rotate so that a number of positioning pins move in an arc. The positioning pins drive a number of cutters to move in a straight line to achieve blade cutting of the lettuce. The cut lettuce is stored in the material bin, and then the cut lettuce is sent to the lettuce collection device through an omnidirectional detection device.

[0067] This application realizes the removal of lettuce leaves, harvesting, collection and packaging through the overall coordination of a movable frame, an orientation detection device, a lettuce cutting and temporary storage device, and a lettuce collection device. It conforms to the concept of agricultural machinery automation and greatly reduces the burden on farmers. At the same time, the entire device is electrically driven and conforms to the concept of green environmental protection.

[0068] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0069] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may 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 movable packaging platform for harvesting lettuce, comprising a movable frame (1), an omnidirectional object detection device (2), a lettuce cutting temporary storage device (3) and a lettuce collecting device (4); characterized in that: The movable frame (1) includes a Mecanum wheel (1a), a wheel flange (1b), a first DC motor (1c), a base (1d), a vehicle plate bottom rib (1e), a cooling fan (1f) and a frame cover (1g); the Mecanum wheel (1a) is four and is respectively fixed to the front and rear ends of the lower end surface of the base (1d) of the movable frame (1) as a driving wheel; the first DC motor (1c) drives the Mecanum wheel (1a) to rotate, and the movable frame (1) is moved by the rotation of the Mecanum wheel (1a); an omnidirectional object detection device (2) is fixedly provided on the upper end surface of the base (1d); and a lettuce collecting device (4) is provided on the upper end surface of the frame cover (1g); The omnidirectional object-finding device (2) comprises a rotary drive assembly (2a), a rotating sleeve (2b), a fixed shaft (2c), a support column (2d), an upper slideway (2e), a traveling vehicle traveling assembly (2f), a lifting drive assembly (2g), and a reinforcing rib (2h); the omnidirectional object-finding device (2) is equipped with a winding wheel (2g4) and a steel cable (2g5), so that the lettuce cutting temporary storage device (3) is installed on the omnidirectional object-finding device (2); The omnidirectional object detection device (2) is mounted on the movable frame (1) via a rotating sleeve (2b); the rotary drive assembly (2a) is used to drive the omnidirectional object detection device (2) to rotate; the traveling vehicle traveling assembly (2f) is used to drive the lettuce cutting temporary storage device (3) to move on the upper slide (2e); the lifting drive assembly (2g) is used to drive the lettuce cutting temporary storage device (3) to move up and down in a spatial orientation; The lettuce cutting temporary storage device (3) comprises a material bin (3a), a hanging ring (3b), a lettuce cutting component (3c) and a guide frame (3d); the lettuce cutting component (3c) is used to drive a blade to cut the lettuce; The lettuce collecting device (4) comprises a collecting frame (4a), which is arranged on the upper end surface of the frame cover (1g) and is used to collect the cut lettuce.

2. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The vehicle plate bottom rib (1e) is fixed to the lower end of the base (1d) of the movable vehicle frame (1), and the first DC motor (1c) is connected to the Mecanum wheel (1a) via a rotating shaft.

3. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The rotary drive assembly (2a) comprises a rotary worm gear motor (2a1), a rotary synchronous pulley (2a2), a rotary synchronous belt (2a3) and a rotary motor bracket (2a4), wherein the working end of the rotary worm gear motor (2a1) is connected to the rotary synchronous pulley (2a2).

4. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The rotating sleeve (2b) is connected to the support column (2d), and a reinforcing rib (2h) is fixed between the support column (2d) and the upper slideway (2e).

5. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The traveling vehicle travel assembly (2f) includes a traveling worm gear motor (2f1), a driving wheel (2f2), a driven wheel (2f3), a rotating wheel (2f4), a spacer (2f5), a screw (2f6) and a traveling vehicle side plate (2f7); wherein the traveling worm gear motor (2f1) is connected to the rotating wheel (2f4), the rotating wheel (2f4) is meshed with the driving wheel (2f2), and the screw (2f6) is fixed to the lower end surface of the bottom surface of the upper slideway (2e).

6. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The lifting drive assembly (2g) comprises a second DC motor (2g1), a lifting synchronous pulley (2g2), a lifting synchronous belt (2g3), a winding wheel (2g4) and a steel cable (2g5), wherein the steel cable (2g5) is wound on the winding wheel (2g4).

7. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The lettuce cutting assembly (3c) comprises a DC reduction motor (3c1), a plurality of cutters (3c2), a plurality of gears (3c3), a cutting upper cover (3c4), a cutting lower cover (3c5), and a plurality of positioning pins (3c6); the rotating shaft of the DC reduction motor (3c1) is connected to the gears (3c3); and the cutter (3c2) is installed between the cutting upper cover (3c4) and the cutting lower cover (3c5).

8. The movable packaging platform for harvesting lettuce according to claim 1, characterized in that: The guide frame (3d) is mounted on the lettuce cutting assembly (3c), and the guide frame (3d) is arranged obliquely downward.

9. The movable packaging platform for harvesting lettuce according to claim 5, characterized in that: There are two driving wheels (2f2), which are located on both sides of the rotating wheel (2f4), installed on the upper end surface of the bottom surface of the upper slideway (2e), and respectively meshed with the rotating wheel (2f4). There are two driven wheels (2f3), which are installed on the upper end surface of the bottom surface of the upper slideway (2e) and symmetrically distributed with the driving wheel (2f2). There are two screw rods (2f6), which are installed between the side plates (2f7) of the traveling vehicle.

10. The movable packaging platform for harvesting lettuce according to claim 6, characterized in that: There are two lifting synchronous pulleys (2g2), the rotating shaft of the second DC motor (2g1) is connected to the first lifting synchronous pulley (2g21), the outer surface of the first lifting synchronous pulley (2g21) is installed with a lifting synchronous belt (2g3), the other end of the lifting synchronous belt (2g3) is installed with a second lifting synchronous pulley (2g22), and the second lifting synchronous pulley (2g22) is installed on the rotating shaft of the winding wheel (2g4).

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