A lightweight and simple mulberry harvesting device

Abstract

This invention relates to the field of agricultural machinery, specifically to a lightweight and simplified mulberry harvesting device, comprising a vibration mechanism and an electric clamping mechanism. The vibration mechanism includes a vibrating rod connected to the electric clamping mechanism. The operator can hold the vibration mechanism by hand. The vibration mechanism vibrates itself, transmitting the vibration through the vibrating rod to the electric clamping mechanism, which clamps the branches. When the vibration mechanism vibrates, it causes the branches clamped by the electric clamping mechanism to vibrate as well. This invention not only improves the convenience of harvesting but also enables more precise harvesting of fruit. For example, if a branch corresponds to fruit with lower maturity, the operator can selectively clamp the branch, effectively reducing the probability of harvesting immature fruit and thus improving the quality of the harvested fruit.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery, specifically to a lightweight mulberry harvesting device. Background Technology

[0002] Currently, fruit harvesting on fruit trees is usually done manually or mechanically. Manual harvesting is inefficient and costly, while mechanical harvesting reduces labor costs and increases efficiency.

[0003] However, although mechanical harvesting of fruits has the above advantages, there are still shortcomings in the actual harvesting process;

[0004] Currently, medium and large-sized harvesters are typically used for fruit harvesting. However, for small fruits such as mulberries and sea buckthorn, the dense branches and canopy height of these trees make it difficult for medium and large-sized harvesters to operate. Large harvesters have lower flexibility, making it difficult for them to vibrate and harvest the fruit from a specific branch within the dense branches of these small fruit trees. Furthermore, large harvesters often vibrate the entire tree, which can cause unripe fruits to fall off, thus hindering the harvesting of ripe fruits.

[0005] Therefore, based on the above problems, we are currently designing a lightweight and simplified mulberry harvesting device to address these shortcomings. Summary of the Invention

[0006] The purpose of this invention is to provide a simple and lightweight mulberry harvesting device to address the shortcomings in the current harvesting process of small fruits such as mulberries and sea buckthorn.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0008] A lightweight and simple mulberry harvesting device includes a vibration mechanism and an electric clamping mechanism. The vibration mechanism includes a vibration rod connected to the electric clamping mechanism. The operator can hold the vibration mechanism by hand. The vibration mechanism vibrates itself, and its vibration is transmitted to the electric clamping mechanism through the vibration rod. The electric clamping mechanism is used to clamp branches, so that when the vibration mechanism vibrates, it can cause the branches clamped by the electric clamping mechanism to vibrate.

[0009] As the preferred technical solution of this application, the electric clamping mechanism includes a fixed clamp and a movable clamp, which cooperate to clamp tree branches, and the electric clamping mechanism also includes a preload spring and a drive assembly.

[0010] The movable clamp has an initial position, and when the movable clamp is in the initial position, the preload spring is used to provide a preload force to bring the movable clamp closer to the fixed clamp;

[0011] Furthermore, the drive assembly is used to drive the movable clamp to move, enabling the movable clamp to move away from the fixed clamp. After the drive assembly is released from driving the movable clamp, the preload spring provides elastic force to move the movable clamp closer to the fixed clamp, thereby enabling the fixed clamp and the movable clamp to clamp the branch.

[0012] As the preferred technical solution of this application, the drive assembly includes a servo motor and a cable. A spool is connected to the output shaft of the servo motor. One end of the cable is wound around the spool, and the other end of the cable is connected to the movable clamp. A groove is provided on the fixed clamp, and the movable clamp slides along the groove. By controlling the output shaft of the servo motor to rotate, the spool drives the cable to move, and the cable drives the movable clamp to move, thereby controlling the size of the gap between the movable clamp and the fixed clamp for clamping the branch.

[0013] As a preferred technical solution of this application, the drive component further includes a controller and a rocker switch, which are adapted to the servo motor. By controlling the rocker switch, the controller receives a signal from the rocker switch and controls the forward and reverse rotation of the servo motor.

[0014] As the preferred technical solution of this application, the fixed clamp includes a fixed clamp seat and a fixed clamp body. The sliding groove is disposed on the fixed clamp seat, and the fixed clamp body is hinged to the fixed clamp seat. The movable clamp and the fixed clamp body cooperate to clamp the branch. An elastic element is also connected between the fixed clamp seat and the fixed clamp body. The elastic element is used to provide a preload so that the fixed clamp body can maintain the state of clamping the branch. When the branch is clamped by the movable clamp and the fixed clamp body, when the mulberry harvesting device pulls the clamped branch, the branch abuts against the fixed clamp body. Its pulling force can deform the elastic element, thereby causing the fixed clamp body to rotate relative to the fixed clamp seat, and enabling the branch to detach from the fixed clamp body and the movable clamp.

[0015] As the preferred technical solution of this application, the elastic element is provided with an adjusting element, which is used to adjust the magnitude of the preload provided by the elastic element.

[0016] As the preferred technical solution of this application, the elastic element includes a curved telescopic rod and a second spring sleeved on the outside of the telescopic rod. The second spring is elastic, and one end of the telescopic rod is connected to the fixed clamp seat, and the other end of the telescopic rod is connected to the fixed clamp body. The adjusting member is threadedly engaged with the telescopic rod, so that the second spring abuts against the adjusting member and the fixed clamp body. By rotating the adjusting member, the position of the adjusting member on the telescopic rod changes, thereby adjusting the length of the second spring.

[0017] As a preferred technical solution of this application, the electric clamping mechanism further includes a state switching component, which is used to switch the connection state between the fixed clamp body and the fixed clamp seat;

[0018] When the vibration mechanism does not drive the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are relatively fixed.

[0019] When the vibration mechanism drives the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are movably connected.

[0020] As the preferred technical solution of this application, the state switching component includes a baffle and a telescopic cylinder. The baffle is fixed on the fixed clamp body, and the telescopic cylinder is disposed on the fixed clamp seat. The telescopic cylinder is provided with a retaining groove that cooperates with the baffle.

[0021] When the vibration mechanism does not drive the electric clamping mechanism to vibrate, the baffle is stuck in the baffle groove, so that the fixed clamp body and the fixed clamp seat are relatively fixed.

[0022] When the vibration mechanism drives the electric clamping mechanism to vibrate, the telescopic cylinder retracts, causing the baffle to disengage from the baffle groove and enabling the fixed clamp body to rotate relative to the fixed clamp seat.

[0023] As the preferred technical solution of this application, the telescopic cylinder includes a first telescopic cylinder and a second telescopic cylinder, the first telescopic cylinder and the second telescopic cylinder are nested together, and a first spring is also provided on the telescopic cylinder. The first spring is elastic; one end of the first spring abuts against the first telescopic cylinder, and the other end of the first spring abuts against the second telescopic cylinder. The first telescopic cylinder is fixed on the fixed clamp, and the stop groove is provided on the second telescopic cylinder.

[0024] Furthermore, the state switching component also includes a fixing rod with a protrusion. When the vibration mechanism is not vibrating, the protrusion abuts against the second telescopic cylinder, increasing the deformation of the first spring and causing the telescopic cylinder to extend, thus allowing the baffle to engage with the baffle.

[0025] When the vibration mechanism vibrates, the telescopic cylinder moves relative to the fixed rod, causing the protrusion to disengage from the second telescopic cylinder, reducing the deformation of the first spring, shortening the telescopic cylinder, and disengaging the retaining groove from the baffle.

[0026] As the preferred technical solution of this application, the mulberry harvesting device further includes a shell, the vibration mechanism is disposed inside the shell, and when the vibration mechanism vibrates, the vibration rod reciprocates relative to the shell along the length direction of the vibration rod; and the fixing rod is fixed on the shell, and the electric clamping mechanism is provided with a fixing groove that cooperates with the fixing rod.

[0027] As a preferred technical solution of this application, the vibration mechanism further includes a crank-connecting rod mechanism, which is connected to the vibration rod and is used to drive the vibration rod to reciprocate relative to the housing along the length direction of the vibration rod.

[0028] As the preferred technical solution of this application, the crank-connecting rod mechanism includes a rotating seat, an amplitude adjusting slider, a threaded tube, a second preload spring, an amplitude adjusting bolt, a cover plate, a connecting rod, a bearing, and a connecting bolt. The rotating seat is provided with a rotating seat groove, and the amplitude adjusting slider is installed in the rotating seat groove. The threaded tube passes through the amplitude adjusting slider and is connected to the connecting rod through the connecting bolt. The two ends of the second preload spring abut against the inner wall of the rotating seat groove and the inner wall of the amplitude adjusting slider, respectively. The threaded rod of the amplitude adjusting bolt is connected to the threaded tube, and the end of the amplitude adjusting bolt abuts against the inner wall of the rotating seat.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In this application, a vibration mechanism and an electric clamping mechanism are provided, allowing the operator to hold the vibration mechanism and drive the electric clamping mechanism to vibrate. During mulberry harvesting, the electric clamping mechanism clamps the branches, and the vibration of the vibrating rod on the vibration mechanism is controlled, so that the vibration is transmitted to the branches through the electric clamping mechanism, thereby vibrating the fruits on the branches. This vibration causes the fruits on the branches to detach from the branches, making the harvesting easier. In the harvesting of small fruits such as mulberries and sea buckthorn, the height of the tree canopy and the density of the branches make the harvesting of medium and large fruits difficult. However, with the mulberry harvesting device of this application, the operator can easily extend the electric clamping mechanism into the dense branches and vibrate a specific branch. This not only improves the convenience of harvesting but also allows for more precise harvesting of fruits. For example, if the fruits on a certain branch have a lower maturity, the operator can selectively clamp the branch, effectively reducing the probability of unripe fruits being harvested, thereby improving the quality of fruit harvesting.

[0031] Furthermore, the fixed clamp includes a fixed clamp base and a fixed clamp body. The fixed clamp body is hinged to the fixed clamp base, and an elastic element is connected between the fixed clamp base and the fixed clamp body. This elastic element provides a preload force so that the fixed clamp body can maintain the state of clamping the branch. When harvesting mulberries, the operator uses an electric clamping mechanism to clamp the branch. During this process, the branch may be hooked by the fixed clamp body. This often happens when the branch is far from the operator. The operator hooks the branch, bends it, and then clamps it. Under the action of the elastic element, when the degree of bending of the branch is small, the rotation range of the fixed clamp body relative to the fixed clamp base is small, so that the fixed clamp body can still cooperate with the moving clamp to clamp the branch.

[0032] When the branch is bent to a greater degree, the force between the branch and the fixed clamp body is greater, which increases the deformation of the elastic element and thus increases the rotation amplitude of the fixed clamp body relative to the fixed clamp seat. This allows the branch to be released from the fixed clamp body and the moving clamp, thereby releasing the electric clamping mechanism from the branch.

[0033] In this way, the occurrence of branches being damaged or broken due to excessive bending can be reduced, and the damage to branches when they are clamped can be reduced. In particular, when the branches are vibrated at a high frequency, or when the clamped and vibrating branches are deep in dense branches, it is difficult for the operator to visually observe the degree of bending caused by vibration. The electric clamping mechanism of this application can play a protective role, and can release the branches from between the fixed clamp body and the moving clamp when the branches are bent to a large degree, thereby protecting the branches during fruit harvesting, reducing the breakage of branches, and thus protecting the fruit on the branches.

[0034] Furthermore, by setting a state switching component, the connection state between the fixed clamp body and the fixed clamp seat is switched, so that when the vibration mechanism does not drive the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are relatively fixed, and when the vibration mechanism drives the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are movably connected. In this way, when the vibration mechanism does not drive the electric clamping mechanism to vibrate, it can prevent the branch from coming out of the fixed clamp body and the moving clamp when it is clamped. When the vibration mechanism is not vibrating and the branch is being clamped, the operator can easily observe the branch because the branch is not vibrating, so that the electric clamping mechanism can act as a hook, making it easy to hook branches that are far away to a closer position. Moreover, the hooked and bent branches can be directly observed with the naked eye, thereby reducing the possibility of the hooked branches breaking.

[0035] Meanwhile, when the vibration mechanism drives the electric clamping mechanism to vibrate, the state switching component can make the fixed clamp body and the fixed clamp seat movable connection, so that when the degree of bending of the branch is large, the rotation amplitude of the fixed clamp body relative to the fixed clamp seat can be increased, thereby enabling the clamped branch to be released from the fixed clamp body and the moving clamp, which is beneficial to protect the branch when it is clamped and vibrating.

[0036] Furthermore, because the branches swing multiple times in a short period of time during the vibration process, and the branches usually bend to one side during the pulling and bending process, the impact from the electric clamping mechanism on the branches when they are vibrated is greater than the impact on the branches when they are not vibrated. When the degree of bending of the branches is the same, the branches are not damaged when they are not vibrated and are only pulled, but when the branches are vibrated and the maximum amplitude of the vibration matches the degree of bending of the branches, the branches may be damaged. Therefore, in this application, by switching the connection state between the fixed clamp body and the fixed clamp seat when the branches are vibrated and not vibrated, the accuracy of the protection of the branches can be improved. This not only makes it easier to pull the branches from a distance closer when the branches are not vibrated, but also reduces the breakage of the branches when they are vibrated.

[0037] Furthermore, the telescopic cylinder includes a first telescopic cylinder and a second telescopic cylinder. A first spring abuts against the first and second telescopic cylinders, and a retaining groove on the second telescopic cylinder cooperates with a baffle. By setting a fixed rod and a protrusion, when the vibration mechanism is not vibrating, the protrusion abuts against the second telescopic cylinder. Under the action of the first spring, the telescopic cylinder is in an extended state. When the vibration mechanism vibrates, the telescopic cylinder moves relative to the fixed rod, thereby causing the protrusion to move relative to the second telescopic cylinder, causing the protrusion to disengage from the second telescopic cylinder. This allows the fixed clamp body to be in a state that can rotate relative to the fixed clamp seat, thus facilitating the switching of the connection state between the fixed clamp body and the fixed clamp seat when the vibration mechanism vibrates.

[0038] Furthermore, when adjusting the amplitude, by rotating the amplitude adjusting bolt, the amplitude adjusting thread is restricted from displacement by the rotating seat. Therefore, under the action of the threaded tube, the amplitude adjusting slider moves in the groove of the rotating seat, thereby adjusting the rotation radius of the crank-connecting rod mechanism and thus adjusting the amplitude. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0040] Figure 2 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0041] Figure 3 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0042] Figure 4 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0043] Figure 5 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0044] Figure 6 This is a schematic diagram of one embodiment of a lightweight mulberry harvesting device according to this application;

[0045] The diagram shows: 1-Vibration mechanism, 2-Electric clamping mechanism, 3-Vibration rod, 4-Fixed clamp, 5-Moving clamp, 6-Preload spring, 7-Drive assembly, 8-Servo motor, 9-Pull cable, 10-Cable reel, 11-Slide groove, 12-Controller, 13-Boat-shaped switch, 14-Fixed clamp seat, 15-Fixed clamp body, 16-Elastic element, 17-Adjusting element, 18-Telescopic rod, 19-Second spring, 20-State switching assembly, 21-Baffle. 22-Telescopic cylinder, 23-Baffle groove, 24-First telescopic cylinder, 25-Second telescopic cylinder, 26-First spring, 27-Fixed rod, 28-Protrusion, 29-Outer shell, 30-Fixed groove, 31-Crank connecting rod mechanism, 32-Rotating seat, 33-Amplitude adjustment slider, 34-Threaded pipe, 35-Second preload spring, 36-Amplitude adjustment bolt, 37-Cover plate, 38-Connecting rod, 39-Bearing, 40-Connecting bolt. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0047] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0048] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this 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 this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] Example 1: See Figure 1-6 As shown,

[0052] This embodiment provides a lightweight and simple mulberry harvesting device, including a vibration mechanism 1 and an electric clamping mechanism 2. The vibration mechanism 1 includes a vibration rod 3, which is connected to the electric clamping mechanism 2. The operator can hold the vibration mechanism 1 by hand. The vibration mechanism 1 vibrates itself, and its vibration is transmitted to the electric clamping mechanism 2 through the vibration rod 3. The electric clamping mechanism 2 is used to clamp branches, so that when the vibration mechanism 1 vibrates, it can drive the branches clamped by the electric clamping mechanism 2 to vibrate.

[0053] In this application, a vibration mechanism 1 and an electric clamping mechanism 2 are provided. The operator can hold the vibration mechanism 1, causing the vibrating rod 3 to drive the electric clamping mechanism 2 to vibrate. During mulberry harvesting, the electric clamping mechanism 2 clamps the branch, and the vibration of the vibrating rod 3 on the vibration mechanism 1 is controlled. The vibration is transmitted to the branch via the electric clamping mechanism 2, thus vibrating the fruit on the branch. This vibration causes the fruit to detach from the branch, facilitating harvesting. This method is also applicable to the harvesting of small fruits such as mulberries and sea buckthorn. During the harvesting process, factors such as tree canopy height and dense branches make medium to large-sized harvesting difficult. However, with the mulberry harvesting device of this application, the operator can easily extend the electric clamping mechanism 2 into the dense branches and vibrate a specific branch. This not only improves the convenience of harvesting but also allows for more precise harvesting of the fruit. For example, if the fruit on a certain branch has a lower maturity, the operator can selectively clamp the branch, effectively reducing the chance of harvesting immature fruit and thus improving the quality of fruit harvesting.

[0054] As the preferred technical solution of this application, the electric clamping mechanism 2 includes a fixed clamp 4 and a movable clamp 5, which cooperate to clamp tree branches, and the electric clamping mechanism 2 also includes a pre-tensioning spring 6 and a drive assembly 7.

[0055] The movable clamp 5 has an initial position. When the movable clamp 5 is in the initial position, the preload spring 6 is used to provide a preload force to bring the movable clamp 5 closer to the fixed clamp 4.

[0056] Furthermore, the drive assembly 7 is used to drive the movable clamp 5 to move, enabling the movable clamp 5 to move away from the fixed clamp 4. After the drive assembly 7 releases the drive of the movable clamp 5, the preload spring 6 provides elastic force to make the movable clamp 5 move closer to the fixed clamp 4, thereby enabling the fixed clamp 4 and the movable clamp 5 to clamp the branch.

[0057] Furthermore, by setting a fixed clamp 4 and a movable clamp 5, the fixed clamp 4 and the movable clamp 5 cooperate to clamp the branch. The electric clamping mechanism 2 also includes a pre-tension spring 6 and a drive assembly 7. By driving the movable clamp 5 to move away from the fixed clamp 4, the deformation of the pre-tension spring 6 increases during this process. When the branch is between the fixed clamp 4 and the movable clamp 5, by releasing the drive assembly 7 from the movable clamp 5, the pre-tension spring 6 gradually recovers its deformation under the action of the elastic force, causing the pre-tension spring 6 to drive the movable clamp 5 to move closer to the fixed clamp 4, thereby clamping the branch. After the branch is clamped by the fixed clamp 4 and the movable clamp 5, under the action of the pre-tension spring 6 and the drive assembly 7, the electric clamping mechanism 2 can easily clamp branches of various diameters. At the same time, when clamping the branch, the pre-tension force provided by the pre-tension spring 6 provides stability for the branch when it is clamped and under vibration, which facilitates the vibration of the branch and the harvesting of the fruit.

[0058] As the preferred technical solution of this application, the drive assembly 7 includes a servo motor 8 and a cable 9. A spool 10 is connected to the output shaft of the servo motor 8. One end of the cable 9 is wound around the spool 10, and the other end of the cable 9 is connected to the movable clamp 5. A groove 11 is provided on the fixed clamp 4, and the movable clamp 5 slides along the groove 11. By controlling the rotation of the output shaft of the servo motor 8, the spool 10 drives the cable 9 to move, and the cable 9 drives the movable clamp 5 to move, thereby controlling the size of the gap between the movable clamp 5 and the fixed clamp 4 for clamping the branch.

[0059] Furthermore, the drive assembly 7 includes a servo motor 8 and a cable 9. A spool 10 is connected to the output shaft of the servo motor 8. One end of the cable 9 is wound around the spool 10, and the other end of the cable 9 is connected to the movable clamp 5. Meanwhile, the fixed clamp 4 is provided with a groove 11, and the movable clamp 5 slides along the groove 11. When preparing to clamp the branch, the output shaft of the servo motor 8 is controlled to rotate, causing the spool 10 to gradually wind the cable 9 around the spool 10. This causes the cable 9 to pull the movable clamp 5, making the movable clamp 5 move. This gradually increases the gap between the movable clamp 5 and the fixed clamp 4 for clamping the branch, making it easier to place the branch between the movable clamp 5 and the fixed clamp 4. Then, the servo motor 8 is driven again, causing the output shaft of the servo motor 8 to rotate in the opposite direction, which loosens the cable 9. Under the action of the preload spring 6, the gap between the movable clamp 5 and the fixed clamp 4 for clamping the branch gradually decreases, making it easier to clamp the branch. This improves the convenience of remotely clamping the branch and ensures the firmness of the clamped branch.

[0060] As a preferred technical solution of this application, the drive component 7 further includes a controller 12 and a rocker switch 13. The controller 12 and the rocker switch 13 are adapted to the servo motor 8. By controlling the rocker switch 13, the controller 12 receives the signal sent by the rocker switch 13, so that the controller 12 controls the forward and reverse rotation of the servo motor 8.

[0061] Furthermore, by setting up a controller 12 and a rocker switch 13, which are adapted to the servo motor 8, the operator can easily send commands to the controller 12 by controlling the rocker switch 13. This facilitates the controller 12 in controlling the rotation of the output shaft of the servo motor 8, thereby improving the operator's convenience in controlling the movement of the moving clamp 5. In this application, the specific controller 12 and rocker switch 13 are all prior art, so they will not be described in detail here.

[0062] Example 2: See Figure 1-6 As shown,

[0063] Based on the technical solution of Embodiment 1, the fixed clamp 4 further includes a fixed clamp seat 14 and a fixed clamp body 15. The sliding groove 11 is disposed on the fixed clamp seat 14, and the fixed clamp body 15 is hinged to the fixed clamp seat 14. The movable clamp 5 and the fixed clamp body 15 cooperate to clamp the branch. An elastic element 16 is also connected between the fixed clamp seat 14 and the fixed clamp body 15. The elastic element 16 is used to provide a pre-tightening force so that the fixed clamp body 15 can maintain the state of clamping the branch. When the branch is clamped by the movable clamp 5 and the fixed clamp body 15, when the mulberry harvesting device pulls the clamped branch, the branch abuts against the fixed clamp body 15. Its pulling force can deform the elastic element 16, thereby causing the fixed clamp body 15 to rotate relative to the fixed clamp seat 14, and enabling the branch to disengage from the fixed clamp body 15 and the movable clamp 5.

[0064] Furthermore, the fixed clamp 4 includes a fixed clamp base 14 and a fixed clamp body 15. The fixed clamp body 15 is hinged to the fixed clamp base 14, and an elastic element 16 is connected between the fixed clamp base 14 and the fixed clamp body 15. This allows the elastic element 16 to provide a preload force so that the fixed clamp body 15 can maintain the state of clamping the branch. When harvesting mulberries, the operator uses the electric clamping mechanism 2 to clamp the branch. During this process, the branch may be hooked by the fixed clamp body 15. This often happens when the branch is far from the operator. The operator hooks the branch, bends it, and then clamps it. Under the action of the elastic element 16, when the degree of bending of the branch is small, the rotation amplitude of the fixed clamp body 15 relative to the fixed clamp base 14 can be low, so that the fixed clamp body 15 can still cooperate with the movable clamp 5 to clamp the branch.

[0065] When the branch is bent to a greater degree, the force between the branch and the fixed clamp body 15 is greater, which increases the deformation of the elastic element 16, thereby increasing the rotation amplitude of the fixed clamp body 15 relative to the fixed clamp seat 14, which allows the branch to be released from the fixed clamp body 15 and the moving clamp 5, thus releasing the clamping of the branch by the electric clamping mechanism 2.

[0066] In this way, the occurrence of branches being damaged or broken due to excessive bending can be reduced, and the damage to branches when they are clamped can be reduced. In particular, when the branches are vibrated at a high frequency, or when the clamped and vibrating branches are deep in dense branches, it is difficult for the operator to visually observe the degree of bending caused by vibration. The electric clamping mechanism 2 of this application can play a protective role, and can release the branches from between the fixed clamp body 15 and the movable clamp 5 when the branches are bent to a large degree. In this way, the branches can be protected during the fruit harvesting process, reducing the breakage of branches and thus protecting the fruit on the branches.

[0067] As the preferred technical solution of this application, the elastic member 16 is provided with an adjusting member 17, which is used to adjust the magnitude of the preload provided by the elastic member 16.

[0068] Furthermore, an adjusting member 17 is provided on the elastic member 16, so that the adjusting member 17 can adjust the magnitude of the pre-tightening force provided by the elastic member 16. This facilitates the adjustment of the degree of bending of the branch held by the fixed clamp body 15 and the movable clamp 5 at which the branch is released from between the fixed clamp body 15 and the movable clamp 5. This improves the flexibility of the fixed clamp body 15 and the movable clamp 5 in holding the branch, so that the pre-tightening force provided by the elastic member 16 can be adjusted for fruit trees of different ages. While further optimizing the protection of fruit tree branches, it can further improve harvesting efficiency.

[0069] As the preferred technical solution of this application, the elastic element 16 includes a curved telescopic rod 18 and a second spring 19 sleeved on the outside of the telescopic rod 18. The second spring 19 is elastic, and one end of the telescopic rod 18 is connected to the fixed clamp seat 14, and the other end of the telescopic rod 18 is connected to the fixed clamp body 15. The adjusting element 17 is threadedly engaged with the telescopic rod 18, so that the second spring 19 abuts against the adjusting element 17 and the fixed clamp body. By rotating the adjusting element 17, the position of the adjusting element 17 on the telescopic rod 18 changes, thereby adjusting the length of the second spring 19.

[0070] As a preferred technical solution of this application, the electric clamping mechanism 2 further includes a state switching component 20, which is used to switch the connection state between the fixed clamp body 15 and the fixed clamp seat 14.

[0071] When the vibration mechanism 1 does not drive the electric clamping mechanism 2 to vibrate, the fixed clamp body 15 and the fixed clamp seat 14 are relatively fixed.

[0072] When the vibration mechanism 1 drives the electric clamping mechanism 2 to vibrate, the fixed clamp body 15 and the fixed clamp seat 14 are movably connected.

[0073] Furthermore, by setting a state switching component 20, the state switching component 20 is used to switch the connection state between the fixed clamp body 15 and the fixed clamp seat 14, so that when the vibration mechanism 1 does not drive the electric clamping mechanism 2 to vibrate, the fixed clamp body 15 and the fixed clamp seat 14 are relatively fixed, and when the vibration mechanism 1 drives the electric clamping mechanism 2 to vibrate, the fixed clamp body 15 and the fixed clamp seat 14 are movably connected; in this way, when the vibration mechanism 1 does not drive the electric clamping mechanism 2 to vibrate, it can prevent the branch from coming out of the fixed clamp body 15 and the movable clamp 5 when it is clamped. When the vibration mechanism 1 is not vibrating and the branch is being clamped, since the branch is not vibrating, the operator can easily observe the branch, so that the electric clamping mechanism 2 can act as a hook, making it easy to hook the branch that is far away to the near, and the hooked and bent branch can be directly observed with the naked eye, thereby reducing the situation where the hooked branch breaks;

[0074] Meanwhile, when the vibration mechanism 1 drives the electric clamping mechanism 2 to vibrate, the state switching component 20 can make the fixed clamp body 15 and the fixed clamp seat 14 movably connected, so that when the degree of bending of the branch is large, the rotation amplitude of the fixed clamp body 15 relative to the fixed clamp seat 14 can be increased, thereby enabling the clamped branch to be released from the fixed clamp body 15 and the moving clamp 5, which is beneficial to protect the branch when it is clamped and vibrating.

[0075] Furthermore, because the branches swing multiple times in a short period of time during the vibration process, and the branches usually bend to one side during the pulling and bending process, the impact from the electric clamping mechanism 2 on the branches when they are vibrated is greater than the impact on the branches when they are not vibrated. When the degree of bending of the branches is the same, the branches are not damaged when they are not vibrated but are only pulled, but when the branches are vibrated and the maximum amplitude of the vibration matches the degree of bending of the branches, the branches may be damaged. Therefore, in this application, by switching the connection state between the fixed clamp body 15 and the fixed clamp seat 14 when the branches are vibrated and when they are not vibrated, the accuracy of protecting the branches can be improved. This not only makes it easier to pull the branches from a distance closer when the branches are not vibrated, but also reduces the breakage of the branches when they are vibrated.

[0076] As the preferred technical solution of this application, the state switching component 20 includes a baffle 21 and a telescopic cylinder 22. The baffle 21 is fixed on the fixed clamp body 15, and the telescopic cylinder 22 is disposed on the fixed clamp seat 14. The telescopic cylinder 22 is provided with a retaining groove 23 that cooperates with the baffle 21.

[0077] When the vibration mechanism 1 does not drive the electric clamping mechanism 2 to vibrate, the baffle 21 is stuck in the baffle groove 23, so that the fixed clamp body 15 and the fixed clamp seat 14 are relatively fixed.

[0078] When the vibration mechanism 1 drives the electric clamping mechanism 2 to vibrate, the telescopic cylinder 22 retracts, causing the baffle 21 to disengage from the baffle groove 23, and allowing the fixed clamp body 15 to rotate relative to the fixed clamp seat 14.

[0079] Furthermore, the state switching component 20 includes a baffle 21 and a telescopic cylinder 22. The baffle 21 is fixed on the fixed clamp body 15, so that the baffle 21 can rotate with the rotation of the fixed clamp body 15. At the same time, the telescopic cylinder 22 is set on the fixed clamp seat 14. The telescopic cylinder 22 is provided with a retaining groove 23 that cooperates with the baffle 21. By controlling the extension and retraction of the telescopic cylinder 22, the baffle 21 can be locked in the retaining groove 23 and can be disengaged from the retaining groove 23, thereby facilitating the switching of the connection state between the fixed clamp body 15 and the fixed clamp seat 14, thus improving the convenience of state switching.

[0080] As the preferred technical solution of this application, the telescopic cylinder 22 includes a first telescopic cylinder 24 and a second telescopic cylinder 25, the first telescopic cylinder 24 and the second telescopic cylinder 25 are sleeved together, and a first spring 26 is also provided on the telescopic cylinder 22. The first spring 26 is elastic; one end of the first spring 26 abuts against the first telescopic cylinder 24, and the other end of the first spring 26 abuts against the second telescopic cylinder 25. The first telescopic cylinder 24 is fixed on the fixed clamp 14, and the stop groove 23 is provided on the second telescopic cylinder 25.

[0081] Furthermore, the state switching component 20 also includes a fixing rod 27, on which a protrusion 28 is provided. When the vibration mechanism 1 is not vibrating, the protrusion 28 abuts against the second telescopic cylinder 25, thereby increasing the deformation of the first spring 26 and causing the telescopic cylinder 22 to be in an extended state, so that the stop groove 23 cooperates with the baffle 21.

[0082] When the vibration mechanism vibrates, the telescopic cylinder 22 moves relative to the fixed rod 27, and the protrusion 28 disengages from the second telescopic cylinder 25, causing the deformation of the first spring 26 to decrease, the telescopic cylinder 22 to be in a shortened state, and the stop groove 23 to disengage from the baffle 21.

[0083] Furthermore, the telescopic cylinder 22 includes a first telescopic cylinder 24 and a second telescopic cylinder 25. A first spring 26 abuts against the first telescopic cylinder 24 and the second telescopic cylinder 25. The stop groove 23 on the second telescopic cylinder 25 cooperates with the baffle 21. By setting a fixed rod 27 and a protrusion 28, when the vibration mechanism 1 is not vibrating, the protrusion 28 abuts against the second telescopic cylinder 25. Under the action of the first spring 26, the telescopic cylinder 22 is in an extended state. When the vibration mechanism 1 vibrates, the telescopic cylinder 22 moves relative to the fixed rod 27, thereby causing the protrusion 28 to move relative to the second telescopic cylinder 25, so that the protrusion 28 disengages from the cooperation with the second telescopic cylinder 25. This allows the fixed clamp body 15 to be in a state that can rotate relative to the fixed clamp seat 14, thus facilitating the switching of the connection state between the fixed clamp body 15 and the fixed clamp seat 14 when the vibration mechanism 1 vibrates.

[0084] Example 3: See Figure 5 and Figure 6 As shown,

[0085] Based on the technical solution of Embodiment 2, the mulberry harvesting device further includes a housing 29, the vibration mechanism 1 is disposed inside the housing 29, and when the vibration mechanism 1 vibrates, the vibration rod 3 reciprocates relative to the housing 29 along the length direction of the vibration rod 3; and the fixing rod 27 is fixed on the housing 29, and the electric clamping mechanism 2 is provided with a fixing groove 30 that cooperates with the fixing rod 27.

[0086] Furthermore, the mulberry harvesting device also includes a housing 29, a vibration mechanism 1 is disposed inside the housing 29, and a fixing rod 27 is fixed on the housing 29, so that the fixing rod 27 is fixed relative to the housing 29. At the same time, the electric clamping mechanism 2 is provided with a fixing groove 30 that cooperates with the fixing rod 27. When the vibration mechanism 1 vibrates, the vibration rod 3 reciprocates relative to the housing 29 along the length direction of the vibration rod 3, so that the fixing rod 27 reciprocates along the length direction of the fixing groove 30, thereby facilitating the movement of the boss relative to the second telescopic cylinder 25, and thus facilitating the switching of the connection state between the fixed clamp body 15 and the fixed clamp seat 14.

[0087] As a preferred technical solution of this application, the vibration mechanism 1 further includes a crank-connecting rod mechanism 31, which is connected to the vibration rod 3. The crank-connecting rod mechanism 31 is used to drive the vibration rod 3 to reciprocate relative to the housing 29 along the length direction of the vibration rod 3.

[0088] As the preferred technical solution of this application, the crank-connecting rod mechanism 31 includes a rotating seat 32, an amplitude adjusting slider 33, a threaded tube 34, a second preload spring 35, an amplitude adjusting bolt 36, a cover plate 37, a connecting rod 38, a bearing 39, and a connecting bolt 40. The rotating seat 32 is provided with a rotating seat 32 groove 11. The amplitude adjusting slider 33 is installed in the rotating seat 32 groove 11. The threaded tube 34 passes through the amplitude adjusting slider 33 and is connected to the connecting rod 38 through the connecting bolt 40. The two ends of the second preload spring 35 abut against the inner wall of the rotating seat 32 and the inner wall of the amplitude adjusting slider 33, respectively. The threaded rod of the amplitude adjusting bolt 36 is connected to the threaded tube 34, and the end of the amplitude adjusting bolt 36 abuts against the inner wall of the rotating seat 32. When adjusting the amplitude, the amplitude adjusting bolt 36 is rotated. Since the amplitude adjusting thread is restricted by the rotating seat 32 and cannot move, the amplitude adjusting slider 33 moves in the groove 11 of the rotating seat 32 under the action of the threaded tube 34, thereby adjusting the rotation radius of the crank connecting rod mechanism 31 and thus adjusting the amplitude. During the operation, the second preload spring 35 always exerts a thrust on the amplitude adjusting slider 33 to position the amplitude adjusting slider 33.

[0089] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A simple mulberry fruit harvesting device, characterized by comprising: It includes a vibration mechanism and an electric clamping mechanism. The vibration mechanism includes a vibration rod connected to the electric clamping mechanism. The operator can hold the vibration mechanism. The vibration mechanism vibrates itself and transmits its vibration to the electric clamping mechanism through the vibration rod. The electric clamping mechanism is used to clamp tree branches so that when the vibration mechanism vibrates, it can cause the tree branches clamped by the electric clamping mechanism to vibrate. The electric clamping mechanism includes a fixed clamp and a movable clamp, and the fixed clamp is provided with a sliding groove. The fixed clamp includes a fixed clamp base and a fixed clamp body. The sliding groove is disposed on the fixed clamp base, and the fixed clamp body is hinged to the fixed clamp base. The movable clamp and the fixed clamp body cooperate to clamp the branch. An elastic element is also connected between the fixed clamp base and the fixed clamp body. The elastic element is used to provide a preload force so that the fixed clamp body can maintain the state of clamping the branch. When the branch is clamped by the movable clamp and the fixed clamp body, when the mulberry harvesting device pulls the clamped branch, the branch abuts against the fixed clamp body. Its pulling force can deform the elastic element, thereby causing the fixed clamp body to rotate relative to the fixed clamp base, and allowing the branch to detach from the fixed clamp body and the movable clamp. The electric clamping mechanism further includes a state switching component, which is used to switch the connection state between the fixed clamp body and the fixed clamp base. When the vibration mechanism does not drive the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are relatively fixed. When the vibration mechanism drives the electric clamping mechanism to vibrate, the fixed clamp body and the fixed clamp seat are movably connected.

2. The simple mulberry picking device according to claim 1, wherein: The fixed clamp and the movable clamp work together to clamp the tree branch, and the electric clamping mechanism also includes a preload spring and a drive assembly; The movable clamp has an initial position, and when the movable clamp is in the initial position, the preload spring is used to provide a preload force to bring the movable clamp closer to the fixed clamp; Furthermore, the drive assembly is used to drive the movable clamp to move, enabling the movable clamp to move away from the fixed clamp. After the drive assembly is released from driving the movable clamp, the preload spring provides elastic force to move the movable clamp closer to the fixed clamp, thereby enabling the fixed clamp and the movable clamp to clamp the branch.

3. The simple mulberry picking device as claimed in claim 2, wherein: The drive assembly includes a servo motor and a cable. A spool is connected to the output shaft of the servo motor. One end of the cable is wound around the spool, and the other end of the cable is connected to the movable clamp. The movable clamp slides along the groove. By controlling the rotation of the output shaft of the servo motor, the spool drives the cable to move, and the cable drives the movable clamp to move, thereby controlling the size of the gap between the movable clamp and the fixed clamp for clamping the branch.

4. The simple mulberry picking device as claimed in claim 3, characterized in that: The drive assembly also includes a controller and a rocker switch, which are adapted to the servo motor. By controlling the rocker switch, the controller receives a signal from the rocker switch and controls the forward and reverse rotation of the servo motor.

5. The simplified mulberry harvesting device as described in claim 4, characterized in that: The elastic element is provided with an adjusting element, which is used to adjust the magnitude of the preload force provided by the elastic element.

6. The simplified mulberry harvesting device as described in claim 5, characterized in that: The state switching component includes a baffle and a telescopic cylinder. The baffle is fixed on the fixed clamp body, and the telescopic cylinder is disposed on the fixed clamp seat. The telescopic cylinder is provided with a retaining groove that cooperates with the baffle. When the vibration mechanism does not drive the electric clamping mechanism to vibrate, the baffle is stuck in the baffle groove, so that the fixed clamp body and the fixed clamp seat are relatively fixed. When the vibration mechanism drives the electric clamping mechanism to vibrate, the telescopic cylinder retracts, causing the baffle to disengage from the baffle groove and enabling the fixed clamp body to rotate relative to the fixed clamp seat.

7. The simplified mulberry harvesting device as described in claim 6, characterized in that: The telescopic cylinder includes a first telescopic cylinder and a second telescopic cylinder, which are nested together. A first spring is also provided on the telescopic cylinder. The first spring is elastic. One end of the first spring abuts against the first telescopic cylinder, and the other end of the first spring abuts against the second telescopic cylinder. The first telescopic cylinder is fixed on the fixed clamp, and the stop groove is provided on the second telescopic cylinder. Furthermore, the state switching component also includes a fixing rod with a protrusion. When the vibration mechanism is not vibrating, the protrusion abuts against the second telescopic cylinder, increasing the deformation of the first spring and causing the telescopic cylinder to extend, thus allowing the baffle to engage with the baffle. When the vibration mechanism vibrates, the telescopic cylinder moves relative to the fixed rod, causing the protrusion to disengage from the second telescopic cylinder, reducing the deformation of the first spring, shortening the telescopic cylinder, and disengaging the retaining groove from the baffle.

8. The simplified mulberry harvesting device as described in claim 7, characterized in that: The mulberry harvesting device also includes a housing, the vibration mechanism is disposed inside the housing, and when the vibration mechanism vibrates, the vibration rod reciprocates relative to the housing along the length of the vibration rod; and the fixing rod is fixed on the housing, and the electric clamping mechanism is provided with a fixing groove that cooperates with the fixing rod.

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