Fruit picking elevatable work platform suitable for complex terrain

Abstract

The application discloses a fruit picking liftable operation platform suitable for complex terrains, which comprises a supporting base with mobile rollers installed on the side face, a movable bottom plate arranged above the supporting base, a working platform for workers to stand on arranged directly above the movable bottom plate, and a hydraulic elevator arranged between the working platform and the movable bottom plate, wherein second oil cylinders are fixedly installed on the upper surface of the supporting base at the left and right sides, and the movable bottom plate is pushed to move leftward and rightward to change the position by the second oil cylinders.

Description

Technical Field

[0001] This invention relates to the field of fruit picking technology, specifically to a lifting platform for fruit picking suitable for complex terrain. Background Technology

[0002] The fruit picking lift platform is a modern agricultural machine specifically designed for orchards. Its function is to provide fruit farmers with a movable and liftable work platform, enabling them to safely and efficiently complete tasks such as picking, pruning, and thinning flowers and fruits at heights.

[0003] As in the prior art, Chinese Patent No. CN112293056A discloses a lifting and protective fruit picking device, including a vehicle body, a lifting platform, a guardrail, a control box, two storage boxes, two fruit dropping cylinders, and a fruit separating box. The lifting platform is located on one side of the top of the vehicle body, the two storage boxes are located on the other side of the top of the vehicle body, and the two fruit dropping cylinders are respectively located directly above the two storage boxes. The fruit dropping cylinders are provided with several fruit inlets at intervals along the height direction. The fruit separating box is provided with a fruit outlet and two fruit outlet pipes. The fruit separating box can rise or fall with the lifting platform. The fruit separating box is used to separate the fruit into large and small fruits and send the sorted large and small fruits into the fruit inlets of the corresponding fruit dropping cylinders through the corresponding fruit outlet pipes.

[0004] For example, in the prior art, Chinese patent CN109757211A discloses a high-efficiency fruit harvester, including a frame, wheels, brake components, lifting platform assembly, sorting and storage mechanism, and fruit cutting components. The frame has wheels at all four corners, and the lifting platform assembly is installed on the top of the frame. The fruit funnel is fixedly connected to the elastic shrink conveying pipe, and the inner surface of the fruit funnel is provided with a fruit buffer pad. The lower side of the annular chamber is connected to the cavity of the box through several screening holes. The diameter of the screening holes increases sequentially from the beginning to the end of the screening channel. The inner surface of the outer tube has grooves on both sides, and the outer surface of the inner tube has protrusions on both sides. The protrusions on the outer surface of the inner tube are slidably connected to the grooves on the inner surface of the outer tube, so that fruit farmers can easily and quickly adjust their own height.

[0005] For example, in the prior art, Chinese Patent Publication No. CN210444906U discloses a fruit picking platform, including a lifting and fixing frame installed on a walking mechanism. The lifting and fixing frame has intermediate lifting frames installed on its left and right sides, and picking lifting frames are installed on the intermediate lifting frames. Intermediate frame lifting guide devices and intermediate frame lifting drive devices are respectively provided between the two intermediate lifting frames and the lifting and fixing frame. A picking frame lifting guide device is provided between the picking lifting frame and the corresponding intermediate lifting frame. A linkage lifting chain connects the picking lifting frame and the lifting and fixing frame. Lifting chain rollers are provided on the intermediate lifting frames, and the linkage lifting chain is arranged upwards around the lifting chain rollers.

[0006] Based on the above information, it can be seen that existing picking lifting platforms generally use hydraulic lifts to raise and lower the standing platform to facilitate fruit picking. However, in actual use, the area of ​​the standing platform is limited, and the picking area is small, which requires frequent movement of the device, affecting the overall picking efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a lifting platform for fruit picking suitable for complex terrain, so as to solve the problem of frequent movement of the device affecting picking efficiency mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a liftable fruit-picking platform suitable for complex terrain, comprising a support base with movable rollers installed on its side, a movable base plate above the support base, a work platform for workers to stand on located directly above the movable base plate, a hydraulic lift between the work platform and the movable base plate, second hydraulic cylinders fixedly installed on the left and right sides of the upper surface of the support base, the second hydraulic cylinders being used to push the movable base plate to move left and right to change its position, a counterweight block being provided inside the support base, the counterweight block being slidably connected to a linear slide rod fixedly installed on the inner wall of the support base, and a linkage mechanism being provided between the counterweight block and the movable base plate, a limit frame being provided on the outer side of the work platform to restrict the opening of the protective door, and an automatic reset mechanism being provided between the limit frame and the work platform.

[0009] Preferably, a first hydraulic cylinder is fixedly installed on the left and right sides of the support base, and a support foot is provided at the lower end of the first hydraulic cylinder. The first hydraulic cylinder extends to push the support foot to contact the ground.

[0010] Preferably, a limiting slider is fixedly installed on the lower surface of the movable base plate, and the limiting slider is connected to a limiting slide rail fixedly installed on the upper surface of the support base.

[0011] Preferably, a connecting block is fixedly installed on the lower surface of the movable base plate, and the connecting block extends into the straight groove opened on the upper surface of the support base to form a sliding structure.

[0012] Preferably, the counterweight has a U-shaped cross-section, and a first rack is fixedly installed on the inner side of the counterweight.

[0013] Preferably, the linkage mechanism includes a second rack fixedly installed on the outer surface of the connecting block, and both the first rack and the second rack are meshed with the transmission gear.

[0014] Preferably, the transmission gear is rotatably connected to the inner upper wall of the support base, and the movable base plate and the counterweight move in opposite directions under the transmission action of the transmission gear.

[0015] Preferably, the automatic reset mechanism includes a connecting rod fixedly installed on the upper surface of the limit frame, and the upper end of the connecting rod is slidably connected to the railing of the working platform.

[0016] Preferably, a return spring is fixedly installed between the upper end of the connecting rod and the railing of the working platform, and the elastic force of the return spring pulls the limiting frame to move upward.

[0017] Preferably, a first magnetic block is fixedly installed on the lower surface of the limiting frame, and the first magnetic block and a second magnetic block fixedly installed on the upper surface of the support base are magnetically attracted to each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the fruit picking lifting platform suitable for complex terrain adopts a novel structural design, the specific details of which are as follows: 1. The lifting platform moves up and down to adjust the height, making it easier for workers to pick fruit from the trees. During the work process, the second hydraulic cylinders on the left and right sides above the support base push the movable base plate to move left and right, thereby changing the position of the work platform. This expands the overall working range without the need for the entire moving device, thus improving the overall work efficiency. Furthermore, first hydraulic cylinders are installed on the left and right sides of the support base. The first hydraulic cylinders push the support legs downward, thereby using the support legs to contact the ground. The support legs stabilize the support base on various terrains and keep the overall device level.

[0019] 2. During the movement of the movable base plate, the connecting block fixedly installed on its lower surface slides relative to it in the linear groove opened on the upper surface of the support base. At this time, the second rack on the outer surface of the connecting block moves relative to the transmission gear. Under the transmission action of the transmission gear, it works with the first rack on the inner side of the counterweight to drive the counterweight to move, so that the counterweight moves in the opposite direction to the movable base plate. Thus, the counterweight is used to balance the counterweight when the movable plate changes position, ensuring the overall stability of the device.

[0020] 3. When the elevator lifts the work platform upward, the first and second magnetic blocks separate and lose their magnetic properties. At this time, the elastic pull of the return spring drives the connecting rod to slide upward, thereby lifting the limit frame upward. The limit frame restricts the opening of the protective door, ensuring the safety of the workers during work. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lower surface structure of the support base of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the linear slide groove structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the support base of the present invention; Figure 6 This is a schematic diagram of the counterweight structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the working platform structure of the present invention; Figure 9 This is a schematic diagram of the lifting state structure of the limiting frame of the present invention; Figure 10 This is a schematic diagram of the lower surface structure of the limiting frame of the present invention.

[0022] In the diagram: 1. Support base; 2. Moving roller; 3. Movable base plate; 4. Lifting platform; 5. Working platform; 6. First hydraulic cylinder; 7. Support foot; 8. Second hydraulic cylinder; 9. Limiting slider; 10. Limiting slide rail; 11. Connecting block; 12. Linear slide groove; 13. Counterweight block; 14. Linear slide rod; 15. First rack; 16. Transmission gear; 17. Second rack; 18. Limiting frame; 19. Connecting rod; 20. Return spring; 21. First magnetic block; 22. Second magnetic block. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1-3 In order to expand the working range, this embodiment provides the following technical solution, specifically disclosing: a support base 1 with movable rollers 2 installed on the side; The movable roller 2 is in electric drive mode, and uses electricity to drive the movable roller 2 to move.

[0025] A movable base plate 3 is provided above the support base 1. A work platform 5 for workers to stand on is located directly above the movable base plate 3. A hydraulic lift 4 is provided between the work platform 5 and the movable base plate 3. Elevator 4 is a scissor-type hydraulic lift.

[0026] The second hydraulic cylinder 8 is fixedly installed on the left and right sides of the upper surface of the support base 1. The second hydraulic cylinder 8 is used to push the movable base plate 3 to move left and right to change its position. The support base 1 is equipped with a counterweight 13, which is slidably connected to the linear slide rod 14 fixedly installed on the inner wall of the support base 1.

[0027] The support base 1 has a first hydraulic cylinder 6 fixedly installed on the left and right sides. The lower end of the first hydraulic cylinder 6 is provided with a support foot 7. The first hydraulic cylinder 6 extends to push the support foot 7 to touch the ground. The lower surface of support foot 7 has a matrix-arranged protrusion structure to increase overall friction.

[0028] A limit slider 9 is fixedly installed on the lower surface of the movable base plate 3, and the limit slider 9 is fixedly installed on the upper surface of the support base 1 with the limit slide rail 10.

[0029] Specifically, when harvesting fruit in the orchard, the electric drive of the moving roller 2 is used to rotate, moving the entire device to the designated position. Then, the first hydraulic cylinder 6 is activated, pushing the lower support leg 7 to touch the ground. The four first hydraulic cylinders 6 are controlled independently, allowing the four support legs 7 to be positioned at different heights, maintaining the overall level of the device on various complex terrains. Then, the lifting platform 4 is activated to raise the work platform 5, lifting the workers to the fruit location for harvesting. After harvesting a section, the second hydraulic cylinders 8 on the left and right sides above the support base 1 are activated, pushing the movable base plate 3 to move left and right. During this process, the limiting slider 9 on the lower surface of the movable base plate 3 slides on the limiting slide rail 10 on the upper surface of the support base 1, thereby changing the position of the work platform 5. This process does not require moving the entire device, thus improving efficiency.

[0030] Example 2: Please refer to Figures 4-7 In order to achieve the purpose of balancing the counterweight, this embodiment provides the following technical solution, specifically disclosing that: a linkage mechanism is set between the counterweight block 13 and the movable base plate 3; The counterweight 13 is made of iron and is used to balance the counterweight of the base 1.

[0031] A limit bracket 18 is installed on the outside of the work platform 5 to restrict the opening of the protective door; The limit frame 18 is a horizontal rod-shaped structure, which restricts the opening of the protective door of the work platform 5.

[0032] A connecting block 11 is fixedly installed on the lower surface of the movable base plate 3. The connecting block 11 extends into the straight groove 12 opened on the upper surface of the support base 1 and forms a sliding structure.

[0033] The counterweight 13 has a concave cross-section and a first rack 15 is fixedly installed on the inner side of the counterweight 13.

[0034] The linkage mechanism includes a second rack 17 fixedly installed on the outer surface of the connecting block 11, and both the first rack 15 and the second rack 17 are meshed with the transmission gear 16.

[0035] The transmission gear 16 is rotatably connected to the inner upper wall of the support base 1. Under the transmission action of the transmission gear 16, the movable base plate 3 and the counterweight 13 move in opposite directions.

[0036] Specifically, during the movement of the movable base plate 3, the connecting block 11 on its lower surface moves synchronously. At this time, the second rack 17 on the outer surface of the connecting block 11 moves relative to the transmission gear 16 inside the support base 1, thereby driving the transmission gear 16 to rotate. The transmission gear 16, in conjunction with the first rack 15, drives the counterweight block 13 to move. The counterweight block 13 slides relative to the linear slide bar 14 inside the support base 1, and the movement direction of the counterweight block 13 is opposite to that of the movable base plate 3, thus achieving the purpose of overall weight distribution of the balancing device.

[0037] Example 3: Please refer to Figures 8-10 In order to improve safety, this embodiment provides the following technical solution, which specifically discloses that: an automatic reset mechanism is provided between the limit frame 18 and the working platform 5. The automatic reset mechanism includes a connecting rod 19 fixedly installed on the upper surface of the limit frame 18, and the upper end of the connecting rod 19 is slidably connected to the fence of the working platform 5.

[0038] A return spring 20 is fixedly installed between the upper end of the connecting rod 19 and the railing of the working platform 5. The elastic force of the return spring 20 pulls the limit frame 18 upward.

[0039] A first magnetic block 21 is fixedly installed on the lower surface of the limiting frame 18, and the first magnetic block 21 and a second magnetic block 22 fixedly installed on the upper surface of the support base 1 are magnetically attracted to each other. Both the first magnetic block 21 and the second magnetic block 22 are made of neodymium magnets and have strong magnetism.

[0040] Specifically, when the work platform 5 is at its lowest position, the first magnetic block 21 and the second magnetic block 22 approach each other. The magnetic effect between the first magnetic block 21 and the second magnetic block 22 attracts the limiting frame 18 downward, allowing the limiting frame 18 to break free from the protective door restriction on the work platform 5. At this time, the protective door can be opened smoothly. When the work platform 5 is lifted upward, the first magnetic block 21 and the second magnetic block 22 move away from each other, and the magnetic attraction disappears. Under the elastic pull of the return spring 20, the limiting frame 18 is driven to move upward through the connecting rod 19, thereby using the limiting frame 18 to restrict the opening of the protective door and ensure safety during high-altitude operations.

[0041] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fruit-picking liftable work platform suitable for complex terrain, comprising a support base (1) with movable rollers (2) mounted on its side, characterized in that, Also includes: A movable base plate (3) is provided above the support base (1). The work platform (5) for workers to stand on is located directly above the movable base plate (3). A hydraulic lift (4) is provided between the work platform (5) and the movable base plate (3). The second oil cylinder (8) is fixedly installed on the left and right sides of the upper surface of the support base (1). The second oil cylinder (8) is used to push the movable base plate (3) to move left and right to change its position. The support base (1) is provided with a counterweight (13). The counterweight (13) is slidably connected to the linear slide rod (14) fixedly installed on the inner wall of the support base (1). A linkage mechanism is provided between the counterweight (13) and the movable base plate (3). The work platform (5) is provided with a limit frame (18) on the outside for restricting the opening of the protective door, and an automatic reset mechanism is provided between the limit frame (18) and the work platform (5).

2. The fruit picking liftable work platform suitable for complex terrain according to claim 1, characterized in that: The support base (1) has a first oil cylinder (6) fixedly installed on the left and right sides. The lower end of the first oil cylinder (6) is provided with a support foot (7). The first oil cylinder (6) extends to push the support foot (7) to contact the ground.

3. The fruit picking liftable work platform suitable for complex terrain according to claim 1, characterized in that: The lower surface of the movable base plate (3) is fixedly installed with a limiting slider (9), and the limiting slider (9) is fixedly installed with a limiting slide rail (10) on the upper surface of the support base (1).

4. The fruit picking liftable work platform suitable for complex terrain according to claim 3, characterized in that: A connecting block (11) is fixedly installed on the lower surface of the movable base plate (3). The connecting block (11) extends into the straight groove (12) opened on the upper surface of the support base (1) and forms a sliding structure.

5. A fruit-picking liftable work platform suitable for complex terrain according to claim 4, characterized in that: The counterweight (13) has a concave cross-section and a first rack (15) is fixedly installed on the inner side of the counterweight (13).

6. A fruit-picking liftable work platform suitable for complex terrain according to claim 5, characterized in that: The linkage mechanism includes a second rack (17) fixedly installed on the outer surface of the connecting block (11), and both the first rack (15) and the second rack (17) are meshed with the transmission gear (16).

7. A fruit-picking liftable work platform suitable for complex terrain according to claim 6, characterized in that: The transmission gear (16) is rotatably connected to the inner upper wall of the support base (1). Under the transmission action of the transmission gear (16), the movable base plate (3) moves in the opposite direction to the counterweight (13).

8. A fruit-picking liftable work platform suitable for complex terrain according to claim 1, characterized in that: The automatic reset mechanism includes a connecting rod (19) fixedly installed on the upper surface of the limit frame (18), and the upper end of the connecting rod (19) is slidably connected to the fence of the working platform (5).

9. A fruit-picking liftable work platform suitable for complex terrain according to claim 8, characterized in that: A reset spring (20) is fixedly installed between the upper end of the connecting rod (19) and the fence of the working platform (5). The elastic action of the reset spring (20) pulls the limit frame (18) upward.

10. A fruit-picking liftable work platform suitable for complex terrain according to claim 9, characterized in that: The first magnetic block (21) is fixedly installed on the lower surface of the limiting frame (18), and the first magnetic block (21) and the second magnetic block (22) fixedly installed on the upper surface of the support base (1) are magnetically attracted to each other.

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