Rambutan fruit picking device

Abstract

The utility model discloses a rambutan fruit picking device, and relates to the technical field of fruit picking equipment, the rambutan fruit picking device comprises a shell, a collecting bag and a telescopic rod, the shell is of a hollow structure, a shearing mechanism is arranged in the shell, and the shearing mechanism comprises an inner gear ring rotationally connected to the inner wall of the bottom of the shell; a plurality of cutting blades distributed in an annular array are connected to the inner side of the inner gear ring in a meshed mode, sector gears are fixedly connected to the ends, away from one another, of the cutting blades, the cutting blades face the inner side wall of the inner gear ring, the inner gear ring is meshed with the cutting blades, and the sector gears are rotationally connected to the shell; according to the branch cutting device, the crank is rotated to drive the shearing mechanism to annularly cut branches, compared with a traditional shear or chopper, the mode is more labor-saving and efficient, the strength of the branches can be gradually weakened through annular cutting, fruits can easily fall into the collecting bag, and the collecting effect is good. Therefore, the tedious process that workers climb high and cut branches with heavy tools is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit picking equipment, specifically a rambutan fruit picking device. Background Technology

[0002] Rambutan is a large tropical fruit tree belonging to the Sapindaceae family and the Sapindaceae genus. Ripe rambutan fruits are red or yellow, and some rambutan seeds are about the size of a sesame seed. Rambutan tastes similar to lychee. Rambutan is not widely cultivated in my country, with large-scale cultivation only occurring in some tropical regions.

[0003] When harvesting rambutan fruit, especially those growing at higher elevations, traditional harvesting methods present numerous inconveniences. Typically, harvesters attach shears to their tools, connected to a long rope by a handle. By pulling the handle, they can cut the rambutan stem. However, when encountering thicker branches or difficult-to-cut stems, the shears, driven solely by the rope, become particularly laborious. To address this, harvesters often need to climb higher and use a handsaw or machete to cut the branches, which not only increases the difficulty and danger of harvesting but also reduces efficiency.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a rambutan fruit harvesting device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a rambutan fruit harvesting device, including a shell, a collection bag, and a telescopic rod. The shell is a hollow structure, and a shearing mechanism is provided inside the shell. The shearing mechanism includes an internal gear ring rotatably connected to the inner wall of the bottom of the shell. Several cutting blades arranged in a circular array are meshed on the inner side of the internal gear ring. A sector gear is fixedly connected to the ends of the cutting blades that are far apart from each other. The cutting blades are arranged facing the inner side wall of the internal gear ring, and the internal gear ring and the cutting blades mesh with each other. The sector gear is rotatably connected to the shell. One end of the outer side wall of the internal gear ring is a tooth side, which has several evenly distributed teeth. A drive gear is meshed on the tooth side of the internal gear ring. A take-up roller is fixedly connected to the end of the drive gear near the inner side wall of the shell. The take-up roller rotates on the inner side wall of the shell.

[0007] Furthermore, the cutting blade is crescent-shaped, and two adjacent cutting blades are staggered along the axial direction of the inner tooth ring. The side wall of the cutting blade near the channel is the cutting edge. The inner side wall of the housing near the take-up roller is provided with a channel, which is located outside the take-up roller. The channel penetrates the housing and the axial direction of the channel is parallel to the axial direction of the take-up roller. Fixed pulleys are fixedly connected to the openings at both ends of the channel.

[0008] Furthermore, the telescopic rod is fixedly connected to the end of the outer wall of the housing away from the inner toothed ring. A vertically penetrating channel two, coaxial with the inner toothed ring, is opened at the top of the housing near the position of the inner toothed ring. A collection bag is fixedly connected to the opening of the channel two at the bottom of the housing. The telescopic rod is hollow along its axial direction. A crank handle is rotatably connected to the end of the outer arc wall of the telescopic rod away from the housing.

[0009] Furthermore, the telescopic rod is divided into multiple axially hollow fixed rods with different cross-sectional radii. The cross-sectional radii of several fixed rods increase sequentially in the direction away from the shell. On the outer arc wall of the fixed rod with a smaller cross-sectional radius adjacent to the fixed rod with a larger cross-sectional radius, several grooves arranged in a circular array are formed radially. A locking block is provided at the opening of the groove. A reset spring is fixedly connected to the side wall of the locking block near the groove. The end of the reset spring away from the locking block is fixedly connected to the bottom inner wall of the groove. On the inner arc wall of the fixed rod with a larger cross-sectional radius adjacent to the fixed rod with a smaller cross-sectional radius, several grooves arranged in a circular array are formed radially. Several grooves of the second type correspond one-to-one with several locking blocks.

[0010] Furthermore, a pull rope is wound around the outer arc wall of the crank handle. One end of the pull rope is fixedly connected to the outer arc wall of the crank handle. The other end of the pull rope away from the crank handle passes through the fixed pulleys at the openings at both ends of the channel and is fixed to the outer arc wall of the take-up roller. The other end of the pull rope away from the crank handle is wound around the take-up roller. A coil spring is provided at the rotational connection between the take-up roller and the housing. The coil spring is embedded inside the side wall of the housing.

[0011] Furthermore, a limiting rod is fixedly connected to the side wall of the crank handle away from the telescopic rod. The length direction of the limiting rod is parallel to the radial direction of the crank handle. A channel three is opened through the end of the limiting rod away from the crank handle. The axial direction of the channel three is parallel to the axial direction of the crank handle. A pin is slidably connected inside the channel three.

[0012] Furthermore, a groove three is provided on the outer arc wall of the telescopic rod at the position corresponding to the pin. The length direction of the groove three is arranged radially along the telescopic rod, and the groove three does not communicate with the interior of the telescopic rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By turning the handle to drive the cutting mechanism to make a circular cut on the branches, this method is more labor-saving and efficient than traditional scissors or machetes. The circular cut can gradually weaken the strength of the branches, so that the fruit can easily fall into the collection bag, thus avoiding the tedious process of manually climbing up and using heavy tools to cut branches.

[0015] 2. By fixing the crank handle, the position of the cutting blades of the shearing mechanism is relatively fixed. At this time, by swinging the telescopic rod, multiple cutting blades can rotate around the branch. With the operator pulling the telescopic rod, multiple effects of ring cutting, pulling and reciprocating cutting of the blades can be produced on the branch, making the branch easier to cut. Attached Figure Description

[0016] Figure 1 A schematic diagram of the internal structure of the shearing mechanism in a rambutan fruit harvesting device. Figure 1 ;

[0017] Figure 2 A schematic diagram of the internal structure of the shearing mechanism in a rambutan fruit harvesting device. Figure 2 ;

[0018] Figure 3 A schematic diagram of the overall structure of a rambutan fruit harvesting device;

[0019] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram showing the connection between the crank handle and the telescopic rod in a rambutan fruit harvesting device.

[0021] In the picture:

[0022] 10. Shell; 11. Collection bag; 12. Telescopic rod; 13. Crank handle;

[0023] 20. Internal gear ring; 21. Sector gear; 22. Cutting blade; 23. Drive gear; 24. Take-up roller;

[0024] 30. Locking block; 31. Reset spring; 32. Limiting rod; 33. Pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see the appendix Figure 1 To be continued Figure 5This utility model provides a rambutan fruit harvesting device, comprising a shell 10, a collection bag 11, and a telescopic rod 12. The shell 10 is a hollow structure, and a shearing mechanism is provided inside the shell 10. The shearing mechanism includes an internal gear ring 20 rotatably connected to the inner wall of the bottom of the shell 10. Several cutting blades 22 arranged in a circular array are meshed on the inner side of the internal gear ring 20. A sector gear 21 is fixedly connected to one end of each of the cutting blades 22 that is far apart from each other. The cutting blades 22 are positioned facing the inner wall of the internal gear ring 20, and the internal gear ring 20 meshes with the cutting blades 22. The sector gear 21 is rotatably connected to the shell 10. One end of the outer wall of the internal gear ring 20 is a tooth side, which has several evenly distributed teeth. A drive gear 23 is meshed on the tooth side of the internal gear ring 20. A take-up roller 24 is fixedly connected to one end of the drive gear 23 near the inner wall of the shell 10. The take-up roller 24 rotates on the inner wall of the shell 10.

[0027] It should be noted that the internal gear ring 20, sector gear 21, cutting blade 22, drive gear 23 and winding roller 24 are all located inside the housing 10. Several cutting blades 22 are arranged in a ring array around the second channel and are all located outside the opening of the second channel. Several evenly distributed gear teeth are provided on the outer arc wall of the internal gear ring 20 near the telescopic rod 12. The internal gear ring 20 meshes with the drive gear 23 through the gear teeth on this side, thereby receiving the torque transmitted by the drive gear 23.

[0028] Please see the appendix Figure 1 To be continued Figure 5 The present invention provides a technical solution: the cutting blade 22 is crescent-shaped, and two adjacent cutting blades 22 are staggered along the axial direction of the inner tooth ring 20. The side wall of the cutting blade 22 near the channel is the cutting edge. The housing 10 has a channel on the inner side wall near the take-up roller 24, located outside the take-up roller 24. The channel penetrates the housing 10 and the axial direction of the channel is parallel to the axial direction of the take-up roller 24. Fixed pulleys are fixedly connected to the openings at both ends of the channel.

[0029] It should be noted that: Channel 1 is used for the pull rope to pass through, where the pull rope will drive the drive gear 23 to rotate when it leaves the take-up roller 24, which in turn drives the internal gear ring 20 to make multiple cutting blades 22 converge toward Channel 2 to cut the tree branches;

[0030] After the crank handle 13 is fixed by the pin 33, when the user swings the telescopic rod 12 to make multiple cutting blades 22 reciprocate to cut the branches, the cutting blades 22 will also be subject to a reaction force and retract. However, when the cutting blades 22 are subject to a reaction force, they will drive the winding roller 24 to wind up the pull rope. At this time, since the crank handle 13 is fixed by the pin 33, the pull rope cannot be pulled, thus preventing the cutting blades 22 from retracting.

[0031] Please see the appendix Figure 1 To be continued Figure 5 The present invention provides a technical solution: the telescopic rod 12 is fixedly connected to the end of the outer wall of the housing 10 away from the inner toothed ring 20. A vertically penetrating channel 2, which is coaxial with the inner toothed ring 20, is opened at the top of the housing 10 near the position of the inner toothed ring 20. A collection bag 11 is fixedly connected to the opening of the channel 2 at the bottom of the housing 10. The telescopic rod 12 is hollow along its axial direction. A crank handle 13 is rotatably connected to the end of the outer arc wall of the telescopic rod 12 away from the housing 10.

[0032] It should be noted that: Channel 2 is used for fruit branches to pass through, and collection bag 11 is used to catch the harvested fruit. When in use, the fruit is passed through the shell 10 into the collection bag 11 from the side of channel 2 away from collection bag 11, and then the crank handle 13 is turned to drive the shearing mechanism.

[0033] Please see the appendix Figure 1 To be continued Figure 5 This utility model provides a technical solution: the telescopic rod 12 is divided into multiple axially hollow fixed rods with different cross-sectional radii. The cross-sectional radii of several fixed rods increase sequentially in the direction away from the housing 10. Several grooves in a circular array are provided on the outer arc wall of the fixed rod with a smaller cross-sectional radius adjacent to the fixed rod with a larger cross-sectional radius. A locking block 30 is provided at the opening of the groove 1. A reset spring 31 is fixedly connected to the side wall of the locking block 30 near the groove 1. The end of the reset spring 31 away from the locking block 30 is fixedly connected to the bottom inner wall of the groove 1. Several grooves in a circular array are provided on the inner arc wall of the fixed rod with a larger cross-sectional radius adjacent to the fixed rod with a smaller cross-sectional radius. Several grooves in a circular array are provided in a one-to-one correspondence between several locking blocks 30.

[0034] It should be noted that the telescopic rod 12 is composed of multiple fixed rods nested in sequence. Adjacent fixed rods are fixed together by a locking block 30 and a return spring 31. The end of the locking block 30 away from the first groove is spherical, which reduces relative friction when the fixed rods slide relative to each other. The locking block 30 is cylindrical in shape. When the locking block 30 is inserted into the second groove, the side wall of the locking block 30 protrudes from the second groove to the outside of the adjacent fixed rod. At this time, the two adjacent fixed rods cannot move relative to each other along the axial direction. When adjustment is needed, the locking block 30 is pressed to retract into the second groove. At this time, the outer arc wall of the spherical end of the locking block 30 abuts against the opening of the inner arc wall of the second groove near the fixed rod. At this time, a large external force is applied to the fixed rod along the axial direction to make the two adjacent fixed rods slide relative to each other.

[0035] To facilitate operation, the number of locking blocks 30, reset springs 31, groove one and groove two can be appropriately reduced and located on the same side of the fixing rod as much as possible. Similarly, to control the extension length, multiple groove two can be set at equal intervals on the side wall of the fixing rod to achieve extension of different lengths.

[0036] Please see the appendix Figure 1 To be continued Figure 5 The present invention provides a technical solution: a pull rope is wound around the outer arc wall of the crank handle 13, one end of the pull rope is fixedly connected to the outer arc wall of the crank handle 13, and the other end of the pull rope away from the crank handle 13 passes through the fixed pulleys at the two ends of the channel and is fixed to the outer arc wall of the take-up roller 24. The end of the pull rope away from the crank handle 13 is wound around the take-up roller 24, and a coil spring is provided at the rotational connection between the take-up roller 24 and the housing 10. The coil spring is embedded in the side wall of the housing 10.

[0037] It should be noted that the fixed pulley changes the direction of the pull rope's movement on the one hand, and reduces the friction experienced by the pull rope at the housing 10 during movement on the other.

[0038] Please see the appendix Figure 1 To be continued Figure 5 The present invention provides a technical solution: a limiting rod 32 is fixedly connected to the side wall of the crank handle 13 away from the telescopic rod 12. The length direction of the limiting rod 32 is parallel to the radial direction of the crank handle 13. A channel 3 is opened through the end of the limiting rod 32 away from the telescopic rod 12 away from the crank handle 13. The axial direction of the channel 3 is parallel to the axial direction of the crank handle 13. A pin 33 is slidably connected in the channel 3.

[0039] It should be noted that the crank handle 13 is used to wind up the pull rope. The crank handle 13 and the winding roller 24 cooperate with each other and are driven by the pull rope. This allows the user to drive the winding roller 24, which is closer to the housing 10, through the crank handle 13 at the end of the telescopic rod 12 away from the housing 10, thereby driving the shearing mechanism to operate.

[0040] The limiting rod 32 provides support for the pin 33, which can slide freely within the channel three on the limiting rod 32.

[0041] Please see the appendix Figure 1 To be continued Figure 5 The present invention provides a technical solution: a groove 3 is provided on the outer arc wall of the telescopic rod 12 at the position corresponding to the pin 33. The length direction of the groove 3 is arranged radially along the telescopic rod 12 and the groove 3 does not communicate with the interior of the telescopic rod 12.

[0042] It should be noted that the pin 33 is compatible with the groove three. When the pin 33 is inserted into the groove three, the crank 13 cannot be rotated.

[0043] Working principle:

[0044] The branches with fruit are passed through the second channel away from the collection bag 11 and into the collection bag 11. Then the telescopic rod 12 is stretched. The locking block 30 and the reset spring 31 can fix the various parts of the telescopic rod 12 relatively. Then the crank handle 13 is turned. The crank handle 13 winds up the pull rope and drives the winding roller 24 to rotate. The winding roller 24 drives the drive gear 23 to mesh with the internal gear ring 20. The internal gear ring 20 then meshes with the sector gear 21, which drives multiple cutting blades 22 to converge toward the second channel and perform a ring cut on the branches in the second channel.

[0045] For branches that are difficult to cut directly, after adjusting the position of the cutting blade 22, insert the pin 33 into the groove three, and then swing the telescopic rod 12 so that multiple cutting blades 22 reciprocate in a circular motion around the channel two as the center of rotation. With the help of the operator, the branches are cut more easily by pulling the telescopic rod 12.

Claims

1. A rambutan fruit harvesting device, comprising a shell (10), a collection bag (11), and a telescopic rod (12), wherein the shell (10) is a hollow structure, characterized in that: The housing (10) is provided with a shearing mechanism, which includes an internal gear ring (20) rotatably connected to the inner wall of the bottom of the housing (10). The inner side of the internal gear ring (20) is meshed with a number of cutting blades (22) arranged in a ring array. The ends of the cutting blades (22) that are far apart from each other are fixedly connected with a sector gear (21). The cutting blades (22) are set towards the inner side wall of the internal gear ring (20) and the internal gear ring (20) and the cutting blades (22) mesh with each other. The sector gear (21) is rotatably connected to the housing (10). One end of the outer side wall of the internal gear ring (20) is the tooth side, which is provided with a number of evenly distributed teeth. The tooth side of the internal gear ring (20) is meshed with a drive gear (23). The end of the drive gear (23) near the inner side wall of the housing (10) is fixedly connected with a take-up roller (24). The take-up roller (24) rotates on the inner side wall of the housing (10). The cutting blade (22) is crescent-shaped. Two adjacent cutting blades (22) are staggered along the axial direction of the inner tooth ring (20). The side wall of the cutting blade (22) near the channel is the cutting edge. The housing (10) has a channel on the inner side wall near the take-up roller (24) located outside the take-up roller (24). The channel passes through the housing (10) and the axial direction of the channel is parallel to the axial direction of the take-up roller (24). Fixed pulleys are fixedly connected to the openings at both ends of the channel. The telescopic rod (12) is fixedly connected to the end of the outer wall of the shell (10) away from the inner toothed ring (20). A vertically penetrating channel two is provided at the top of the shell (10) near the inner toothed ring (20) and is coaxial with the inner toothed ring (20). A collection bag (11) is fixedly connected to the opening of the channel two at the bottom of the shell (10). The telescopic rod (12) is hollow along its axial direction. A crank handle (13) is rotatably connected to the end of the outer arc wall of the telescopic rod (12) away from the shell (10). A pull rope is wound around the outer arc wall of the crank handle (13). One end of the pull rope is fixedly connected to the outer arc wall of the crank handle (13). The other end of the pull rope away from the crank handle (13) passes through the fixed pulleys at the openings at both ends of the channel and is fixed to the outer arc wall of the take-up roller (24). The other end of the pull rope away from the crank handle (13) is wound around the take-up roller (24). A coil spring is provided at the rotational connection between the take-up roller (24) and the housing (10). The coil spring is embedded inside the side wall of the housing (10).

2. A fruit picking device as claimed in claim 1, wherein: The telescopic rod (12) is divided into multiple axially hollow fixed rods with different cross-sectional radii. The cross-sectional radii of several fixed rods increase sequentially in the direction away from the shell (10). The fixed rod with a smaller cross-sectional radii has several grooves arranged in a ring array on the outer arc wall of the adjacent fixed rod with a larger cross-sectional radii. A locking block (30) is provided at the opening of the groove. A reset spring (31) is fixedly connected to the side wall of the locking block (30) near the groove. The end of the reset spring (31) away from the locking block (30) is fixedly connected to the bottom inner wall of the groove. The fixed rod with a larger cross-sectional radii has several grooves arranged in a ring array on the inner arc wall of the adjacent fixed rod with a smaller cross-sectional radii. Several grooves correspond one-to-one with several locking blocks (30).

3. A fruit picking device as claimed in claim 1, wherein: A limiting rod (32) is fixedly connected to the side wall of the crank (13) away from the telescopic rod (12). The length direction of the limiting rod (32) is parallel to the radial direction of the crank (13). A channel three is opened through the end of the side wall of the limiting rod (32) away from the telescopic rod (12) and away from the crank (13). The axial direction of the channel three is parallel to the axial direction of the crank (13). A pin (33) is slidably connected in the channel three.

4. A fruit picking device as claimed in claim 3, wherein: The telescopic rod (12) has a groove three on its outer arc wall corresponding to the position of the pin (33). The length direction of the groove three is arranged radially along the telescopic rod (12) and the groove three does not communicate with the interior of the telescopic rod (12).

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