Anti-extrusion harvesting frame for banana harvesting

Abstract

The utility model relates to an anti-extrusion harvesting frame for banana harvesting, which comprises a bearing bottom frame, the bearing bottom frame is of a cylindrical hollow structure, and the lower end of the bearing bottom frame is uniformly and fixedly provided with limiting insertion rods; the stand column is of a cylindrical structure and is rotatably installed in the bearing bottom frame, a handle frame is installed in the middle of the stand column, and a sliding groove is formed in the upper end of the stand column. The lifting assembly sleeves the outer side of the upper end of the stand column, and the middle of the lifting assembly slides in the sliding groove; the harvesting assembly is fixedly installed on the outer side face of the lifting assembly, and the harvesting assembly is used for bearing and clamping the whole comb of bananas and winding the whole comb of bananas with a protective film to prevent extrusion; by means of the linkage design of the lifting assembly and the harvesting assembly, flexible clamping and dynamic film winding are synchronously completed at the moment of banana comb cutting, the problems of scratching and squeezing caused by traditional secondary carrying are solved, and follow-up packaging and conveying of banana combs are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of banana harvesting, and in particular to an anti-extrusion harvesting rack for banana harvesting. Background Art

[0002] As an important global cash crop, the post-harvest loss rate of bananas is as high as 20%-30%, mainly due to mechanical damage and spoilage problems during harvesting and transportation. Traditional harvesting methods rely on manual climbing to cut the banana combs and then directly throw them to the ground or into a receiving basket, which easily causes banana fruits to be scratched and deformed due to falling and collision; and the process of secondary handling to the packaging area for film wrapping protection not only has low efficiency but also increases the risk of damaged peel.

[0003] For the Chinese patent with publication number CN 110012728 A and name "An Auxiliary Device for Banana Picking", specifically, the clamping degree of the clamping claws is accurately adjusted through gears and torque sensors; at the same time, the auxiliary moving device can change the position of the clamping claws to adapt to banana bunches at various different heights; after cutting, the banana bunch is transported to the storage area by moving the entire clamping claw device. During the whole operation process, the banana bunch is always clamped by the clamping claws, and the surface of the clamping claws is covered with an elastic material protective cover, which minimizes the risk of banana loss, saves labor costs, and improves the fruit grade. In addition, proximity switches and alarms are installed on both sides of the clamping claws and the mobile auxiliary equipment to stop and wait for maintenance when exceeding the working range.

[0004] When the above existing technologies are used, they can also achieve the function of harvesting bananas. However, when the above existing technologies are used, although they can also achieve the purpose of wrapping and clamping the banana combs, it is easy to cause local pressure concentration during clamping, resulting in indentations and affecting the subsequent refrigeration and transportation of the banana combs; secondly, the existing equipment cannot synchronously complete the fixation and wrapping of the banana combs during cutting, resulting in the phenomenon that the banana combs will collide or even fall down after cutting, and at the same time, it is necessary to carry out secondary handling before the protective film can be wound, affecting the harvesting efficiency of the banana combs; based on this, there is still room for improvement on the basis of the existing anti-extrusion harvesting rack for banana harvesting. Utility Model Content

[0005] In order to solve the problems in the background art, the present utility model proposes an anti-extrusion harvesting rack for banana harvesting.

[0006] The anti-extrusion harvesting rack for banana harvesting provided by this application adopts the following technical solutions:

[0007] An anti - extrusion harvesting rack for bananas, comprising a supporting bottom frame, which is of a cylindrical hollow structure, and a plurality of limiting insertion rods are uniformly and fixedly installed at the lower end of the supporting bottom frame; a column, which is of a cylindrical structure, the column is rotatably installed inside the supporting bottom frame, a handle frame is installed in the middle of the column, and a sliding groove is opened at the upper end of the column; a lifting assembly, which is sleeved outside the upper end of the column, and the middle part of the lifting assembly slides inside the sliding groove; a harvesting assembly, which is fixedly installed on the outer side of the lifting assembly, and the harvesting assembly is used for supporting and clamping a whole comb of bananas, and winding a protective film around the whole comb of bananas to prevent extrusion.

[0008] Further, the lifting assembly includes a guide rail, a sliding block and a lifting frame. The guide rail is fixedly installed inside the sliding groove, the sliding block is slidably arranged on the guide rail, the lifting frame is slidably arranged outside the column, the middle part of the lifting frame is fixedly connected with the sliding block, and the harvesting assembly is installed on the outer side of the lifting frame.

[0009] Further, the harvesting assembly includes a mounting frame, a supporting bracket, a wrapping unit and a film - winding unit. The mounting frame is fixedly installed on the outer side of the lifting frame, the supporting bracket is fixedly installed at the lower end outside the mounting frame, the wrapping units are fixedly installed at both ends outside the mounting frame, an annular interval is arranged between the two wrapping units, a rectangular groove is opened in the middle of the outer side of the mounting frame, and the film - winding unit is installed in the rectangular groove.

[0010] Further, the supporting bracket is of a circular structure, a rotating disk is installed in the middle of the upper end of the supporting bracket, and a reinforcing frame is fixedly installed between the lower end of the supporting bracket and the mounting frame.

[0011] Further, the wrapping unit includes a pressing frame, a connecting rod and an electric push rod. The pressing frames are uniformly installed on the mounting frame through pin shafts, the pressing frames on the same side of the mounting frame are fixedly connected by a plurality of connecting rods, an arc - shaped wrapping wire frame is formed between the pressing frame and the connecting rod, and the electric push rod is installed between the outer side of the wrapping wire frame and the mounting frame through a pin shaft.

[0012] Further, the pressing frame is of an arc - shaped structure, the pressing frame is made of hollow metal material, the concave surface of the pressing frame is a smooth arc surface, and a convex part that turns outwards is arranged at the end of the pressing frame.

[0013] Further, the film - winding unit includes a rectangular frame, a film - winding roller and a guiding groove. The rectangular frame is installed in the rectangular groove, the film - winding roller is installed inside the rectangular frame, the film - winding roller is detachably arranged, a guiding groove is arranged in the middle of the outer side of the rectangular frame, and the end of the film on the film - winding roller extends out from inside the guiding groove.

[0014] Beneficial effects

[0015] Compared with the prior art, the utility model provides an anti - extrusion harvesting rack for bananas, which has the following beneficial effects:

[0016] 1. In this utility model, through the linkage design of the lifting assembly and the harvesting assembly, flexible clamping and dynamic film wrapping are synchronously completed at the moment of banana comb cutting, avoiding the abrasion and extrusion problems caused by traditional secondary handling, and facilitating the subsequent packaging and transportation of banana combs.

[0017] 2. In this utility model, the wrapping unit adopts an arc-shaped pressing frame structure driven by a multi-link mechanism, and the pressure is controlled by an electric push rod to form an annular wrapping network frame, evenly dispersing the clamping force; the inner arc surface of the pressing frame is designed to be smooth, and the banana comb is driven to rotate by a rotating disk to achieve zero-indentation clamping and film wrapping, reducing the secondary wrapping of banana combs.

[0018] 3. In this utility model, the film wrapping unit automatically pulls the film roller to release the breathable protective film through the rotation of the banana comb, ensuring that the film is evenly wrapped without air bubble residues. The breathable design, combined with cold chain transportation, effectively regulates humidity and suppresses respiratory heat, prolonging the freshness period of banana combs and reducing spoilage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes this utility model in conjunction with the drawings and embodiments.

[0020] Figure 1 It is the first three-dimensional structure schematic diagram of this application.

[0021] Figure 2 It is the second three-dimensional structure schematic diagram of this application.

[0022] Figure 3 It is the three-dimensional structure schematic diagram of the harvesting assembly of this application.

[0023] Figure 4 It is the bottom view of the harvesting assembly of this application.

[0024] Figure 5 It is the sectional structure schematic diagram of the harvesting assembly of this application.

[0025] Figure 6 It is the cross-sectional structure schematic diagram of the harvesting assembly of this application.

[0026] Description of the reference numerals: 1, supporting bottom frame; 11, limiting insertion rod; 2, column; 21, handle frame; 3, lifting assembly; 31, guide rail; 32, sliding block; 33, lifting frame; 4, harvesting assembly; 41, mounting frame; 42, supporting bracket; 421, rotating disk; 422, reinforcing frame; 43, wrapping unit; 431, pressing frame; 432, connecting rod; 433, electric push rod; 44, film wrapping unit; 441, rectangular frame; 442, film roller; 443, guide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 6 , a banana harvesting anti-extrusion harvesting rack provided in the embodiments of the present invention includes a supporting bottom frame 1, which has a cylindrical hollow structure, and a plurality of limiting insertion rods 11 are evenly and fixedly installed at the lower end of the supporting bottom frame 1; a column 2, which has a cylindrical structure, the column 2 is rotatably installed inside the supporting bottom frame 1, a handle frame 21 is installed in the middle of the column 2, and a sliding groove is opened at the upper end of the column 2; a lifting assembly 3, which is sleeved outside the upper end of the column 2, and the middle part of the lifting assembly 3 slides inside the sliding groove; a harvesting assembly 4, which is fixedly installed on the outer side of the lifting assembly 3, and the harvesting assembly 4 is used to support and clamp a whole comb of bananas, and wind a protective film around the whole comb of bananas to prevent extrusion.

[0029] In the above technical solution, when harvesting bananas, the supporting bottom frame 1 is placed at the lower end of the banana tree, and the limiting insertion rods 11 are inserted into the ground, which can improve the stability of the supporting bottom frame 1 and avoid the phenomenon that the column 2 topples during banana harvesting; then, the lifting assembly 3 drives the harvesting assembly 4 to move upward, so that the harvesting assembly 4 can reach the position where the whole comb of bananas can be just wrapped. The harvesting assembly 4 first clamps and positions the whole comb of bananas, and then, manually cuts the banana stalk with a sickle, so that the whole comb of bananas stays inside the harvesting assembly 4, and the harvesting assembly 4 can also wind and wrap the protective film around the cut whole comb of bananas to prevent the whole comb of bananas from being extruded during subsequent transportation and storage.

[0030] When wrapping the protective film during banana harvesting, it can avoid secondary wrapping after banana harvesting, reduce the cumbersome layout during harvesting. At the same time, the banana peel is fragile, and collisions and frictions during transportation are likely to cause abrasions. The protective film can buffer external forces. The protective film uses a breathable film (such as a microporous film) to wrap the whole comb of bananas, and is combined with cold chain transportation to further extend the shelf life and avoid rotting caused by high temperature and high humidity.

[0031] Refer to Figures 1 - 2 As shown, as a preferred technical solution of this embodiment, the lifting assembly 3 includes a guide rail 31, a sliding block 32 and a lifting frame 33. The guide rail 31 is fixedly installed inside the sliding groove, the sliding block 32 is slidably arranged on the guide rail 31, the lifting frame 33 is slidably arranged outside the column 2, the middle part of the lifting frame 33 is fixedly connected to the sliding block 32, and the harvesting assembly 4 is installed on the outer side of the lifting frame 33.

[0032] In the above technical solution, the sliding block 32 can move up and down along the length direction of the guide rail 31, which is convenient for the harvesting assembly 4 to harvest bananas and transport the harvested bananas downward.

[0033] Refer to Figures 3 - 6 As shown, as a preferred technical solution of this embodiment, the harvesting assembly 4 includes a mounting frame 41, a supporting bracket 42, a wrapping unit 43 and a film winding unit 44. The mounting frame 41 is fixedly installed on the outer side of the lifting frame 33. The lower end of the outer side of the mounting frame 41 is fixedly installed with the supporting bracket 42. The two ends of the outer side of the mounting frame 41 are fixedly installed with the wrapping units 43. An annular interval is arranged between the two wrapping units 43. A rectangular groove is formed in the middle of the outer side of the mounting frame 41, and the film winding unit 44 is installed in the rectangular groove.

[0034] It can be understood that the annular interval arranged between the two wrapping units 43 is a general structure, and this annular interval can be optimized into a banana-shaped space, a semi-elliptical space, etc. that matches the bottom shape of the whole comb of bananas, so as to better adapt to the shape of bananas and provide better fixation.

[0035] Continue to refer to Figures 3 - 6 As shown, as a preferred technical solution of this embodiment, the supporting bracket 42 has a circular structure. A rotating disk 421 is installed in the middle of the upper end of the supporting bracket 42. A reinforcing frame 422 is fixedly installed between the lower end of the supporting bracket 42 and the mounting frame 41.

[0036] In the above technical solution, the mounting frame 41 moves synchronously with the lifting assembly 3. When the mounting frame 41 moves upward, the mounting frame 41 drives the supporting bracket 42 to move to the lower end of the whole comb of bananas and support the whole comb of bananas. Then, the wrapping unit 43 moves inward to wrap and limit the whole comb of bananas to prevent the whole comb of harvested bananas from toppling and falling. After that, an artificial cuts the banana stalk with a sickle. The cut whole comb of bananas stays in the annular interval between the two wrapping units 43. The rotating disk 421 at the upper end of the supporting bracket 42 can drive the whole comb of bananas to rotate in the annular interval. The film winding unit 44 will automatically release the protective film. Since the wrapping unit 43 wraps and presses the whole comb of bananas, when the whole comb of bananas rotates, the protective film will accurately wind around the outer side of the whole comb of bananas, reducing manual secondary winding and avoiding the phenomenon of extrusion during subsequent transportation of bananas.

[0037] Refer to Figures 3 - 5 As shown, as a preferred technical solution of this embodiment, the wrapping unit 43 includes a pressing frame 431, a connecting rod 432 and an electric push rod 433. The pressing frames 431 are evenly installed on the mounting frame 41 through pin shafts. The pressing frames 431 on the same side of the mounting frame 41 are fixedly connected by a plurality of connecting rods 432. An arc-shaped wrapping wire frame is formed between the pressing frame 431 and the connecting rod 432. The electric push rod 433 is installed between the outer side of the wrapping wire frame and the mounting frame 41 through a pin shaft.

[0038] In the above technical solution, when the electric push rod 433 works, the two wrapping wire frames will flip inward synchronously, so that the wrapping wire frames can wrap and press the whole comb of bananas, avoiding the phenomenon of the whole comb of bananas falling down, and improving the stability of the wrapping of the whole comb of bananas.

[0039] Refer to Figures 3 - 6 As shown, as a preferred technical solution of this embodiment, the pressing frame 431 has an arc-shaped structure and is made of hollow metal material, which can not only reduce the weight of the pressing frame 431, but also ensure the structural strength of the pressing frame 431. The concave surface of the pressing frame 431 is a smooth arc surface, and the end of the pressing frame 431 is provided with a convex part that flips outward.

[0040] In the above technical solution, the pressing frame 431 is arranged in an arc-shaped structure, and the contact surface between the pressing frame 431 and the banana is a relatively wide plane, so that the pressing frame 431 will not produce indentations on the whole comb of bananas. The concave surface of the pressing frame 431 is a smooth arc surface. When the rotating disk 421 drives the whole comb of bananas to rotate, the friction between the pressing frame 431 and the whole comb of bananas can be reduced, and at the same time, it is convenient for the protective film to conduct. The convex part that flips outward at the end of the pressing frame 431 can avoid the phenomenon that the protective film gets stuck with the pressing frame 431, which is beneficial to the accurate wrapping of the protective film on the outside of the whole comb of bananas.

[0041] Refer to Figures 5 - 6 As shown, as a preferred technical solution of this embodiment, the film winding unit 44 includes a rectangular frame 441, a film winding roller 442 and a guide groove 443. The rectangular frame 441 is installed in the rectangular groove, the film winding roller 442 is installed inside the rectangular frame 441, the film winding roller 442 is detachably arranged, and a guide groove 443 is arranged in the middle on the outside of the rectangular frame 441. The end of the film on the film winding roller 442 extends out from inside the guide groove 443.

[0042] In the above technical solution, a protective film is wound on the film winding roller 442, and the end of the protective film extends out from inside the guide groove 443. When the whole comb of bananas rotates after being harvested, the whole comb of bananas will contact and squeeze the end of the protective film, and drive the protective film to extend outwards, so that the protective film can be accurately wound on the outside of the whole comb of bananas. When the whole comb of bananas after harvesting descends to the lowest position through the lifting assembly 3, the operator first cuts off the protective film, and then takes out the whole comb of bananas.

[0043] The working principle of the present utility model is:

[0044] S1: Equipment fixation and height adjustment

[0045] Place the supporting chassis 1 under the banana tree and achieve stable fixation by inserting the limit insertion rod 11 into the ground. The operator holds the handle frame 21 and rotates the column 2 to align the harvesting assembly 4 with the target banana comb; start the lifting assembly 3, drive the sliding block 32 to move upward along the guide rail 31, drive the lifting frame 33 and the harvesting assembly 4 to rise vertically to the bottom of the banana comb, and ensure that the supporting bracket 42 accurately supports the banana comb.

[0046] S2: Banana comb clamping and cutting

[0047] The electric push rod 433 pushes the arc-shaped pressing frame 431 of the wrapping unit 43 to retract synchronously, and forms an annular wrapping wire frame through the linkage of the connecting rod 432 to flexibly clamp the banana comb and avoid the generation of indentation marks; after the clamping is stable, the operator uses a sickle to cut the banana stalk, and the banana comb completely falls into the annular interval formed by the supporting bracket 42 and the wrapping unit 43, and the rotating disk 421 provides bottom support.

[0048] S3: Dynamic film wrapping protection

[0049] Start the rotating disk 421 to drive the banana comb to rotate at a constant speed. At the same time, the film rolling roller 442 of the film wrapping unit 44 releases the pre-installed breathable protective film. The protective film is led out through the guide groove 443 and evenly winds around its surface as the banana comb rotates. The smooth inner arc surface and the end protrusion design of the pressing frame 431 ensure that the film has no jamming and form a tight wrapping layer; after the winding is completed, the lifting assembly 3 drives the harvesting assembly 4 to slowly descend to a low position.

[0050] S4: Unloading and resetting

[0051] Manually cut the film and release the clamping of the wrapping unit 43, take out the protected banana comb, and then reset the electric push rod 433 to expand the pressing frame 431, and the lifting assembly 3 returns to the initial position to complete a single harvesting cycle; the whole process realizes the integration of harvesting and protection, avoids secondary handling damage, and adapts to the fresh-keeping requirements of cold chain transportation.

[0052] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A banana harvesting anti-extrusion harvesting rack, characterized in that, Including: A supporting chassis (1), which has a cylindrical hollow structure, and limiting insertion rods (11) are uniformly and fixedly installed at the lower end of the supporting chassis (1); A vertical column (2), which has a cylindrical structure, and the vertical column (2) is rotatably installed inside the supporting chassis (1). A handle frame (21) is installed in the middle of the vertical column (2), and a sliding groove is opened at the upper end of the vertical column (2); A lifting assembly (3), which is sleeved on the outer side of the upper end of the vertical column (2), and the middle part of the lifting assembly (3) slides inside the sliding groove; A harvesting assembly (4), which is fixedly installed on the outer side surface of the lifting assembly (3), and the harvesting assembly (4) is used for supporting and clamping a whole comb of bananas, and winding a protective film around the whole comb of bananas to prevent extrusion; The lifting assembly (3) includes a guide rail (31), a sliding block (32) and a lifting frame (33); The harvesting assembly (4) includes a mounting frame (41), a supporting bracket (42), a wrapping unit (43) and a film winding unit (44). The mounting frame (41) is fixedly installed on the outer side surface of the lifting frame (33). The supporting bracket (42) is fixedly installed at the lower end outside the mounting frame (41). The wrapping units (43) are fixedly installed at both ends outside the mounting frame (41). An annular interval is arranged between the two wrapping units (43). A rectangular groove is opened in the middle of the outer side of the mounting frame (41), and the film winding unit (44) is installed in the rectangular groove.

2. The anti-extrusion harvesting rack for banana harvesting according to claim 1, characterized in that: The guide rail (31) is fixedly installed inside the sliding groove. The sliding block (32) is slidably arranged on the guide rail (31). The lifting frame (33) is slidably arranged on the outer side of the vertical column (2). The middle part of the lifting frame (33) is fixedly connected with the sliding block (32), and the harvesting assembly (4) is installed on the outer side of the lifting frame (33).

3. The anti-extrusion harvesting rack for banana harvesting according to claim 1, wherein: The supporting bracket (42) has a circular structure. A rotating disc (421) is installed in the middle of the upper end of the supporting bracket (42). A reinforcing frame (422) is fixedly installed between the lower end of the supporting bracket (42) and the mounting frame (41).

4. A banana harvesting anti-extrusion harvesting rack according to claim 1, characterized in that: The wrapping unit (43) includes a pressing frame (431), a connecting rod (432) and an electric push rod (433). The pressing frames (431) are uniformly installed on the mounting frame (41) through pin shafts. The pressing frames (431) on the same side of the mounting frame (41) are fixedly connected through a plurality of connecting rods (432). An arc-shaped wrapping wire frame is formed between the pressing frame (431) and the connecting rod (432). The electric push rod (433) is installed between the outer side of the wrapping wire frame and the mounting frame (41) through a pin shaft.

5. A banana harvesting anti-extrusion harvesting rack according to claim 4, characterized in that: The pressing frame (431) has an arc-shaped structure. The pressing frame (431) is made of hollow metal material. The concave surface of the pressing frame (431) is a smooth arc surface. A convex part that turns outwards is arranged at the end of the pressing frame (431).

6. The anti-extrusion harvesting rack for banana harvesting according to claim 1, wherein: The film winding unit (44) includes a rectangular frame (441), a film winding roller (442) and a guide groove (443). The rectangular frame (441) is installed in the rectangular groove. The film winding roller (442) is installed inside the rectangular frame (441). The film winding roller (442) is detachably arranged. A guide groove (443) is arranged in the middle of the outer side of the rectangular frame (441). The end of the film on the film winding roller (442) extends out from inside the guide groove (443).

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