A handheld pepper picking machine

Abstract

A handheld pepper picking machine relates to the technical field of pepper harvesting and is used to solve the problems of long idling time and low picking efficiency of the picking tools of existing picking machines. It includes a housing, a handle, a cutter, a motor and a crank-rocker mechanism. The handle has a battery, the housing is located at the front end of the handle, the front end of the housing has combing teeth, the cutter is located above the combing teeth, the motor is fixed to the housing, and the crank-rocker mechanism includes a crank, a rocker and a connecting rod. The first end of the crank is fixedly connected to the motor output shaft, the second end of the crank is hinged to the middle section of the connecting rod, the first end of the rocker is rotatably connected to the housing, the second end of the rocker is hinged to the first end of the connecting rod, and the second end of the connecting rod is fixedly connected to the cutter. The present invention reduces the idling time of the cutter through the pull-cut-push-quick-return motion mode, and the idling time is short. The cutter can be quickly reset, thereby improving the picking efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pepper harvesting, in particular to a handheld pepper picking machine. Background Art

[0002] Traditionally, peppercorn harvesting relies primarily on manual labor. Due to the numerous thorns on pepper trees, which can easily injure them, manual picking is labor-intensive, inefficient, and harmful to health. This method is unsuitable for large-scale, large-scale harvesting operations. With the advancement of agricultural mechanization and informatization, a variety of peppercorn harvesting machines have emerged. Picking robots are often restricted by terrain and obstructed by branches and leaves, hindering their applicability and harvesting efficiency. Most handheld and backpack-mounted harvesting devices utilize a rotary cutter system, which results in a short loaded cutting phase and long idle rotation periods, resulting in wasted resources and hindering cutting efficiency. For example, Chinese Patent No. 2020103177916 discloses a handheld peppercorn picker comprising a protective shield, a scraper assembly, a handle, a power control assembly, a through-shaft, and a fruit collection bag. The scraper assembly is housed within the protective shield, with a through-shaft extending through the shield and scraper assembly. The fruit collection bag is located directly below the scraper assembly. The power control assembly controls the rotation of the scraper assembly via the through-shaft, scraping the peppercorns and transferring them to the fruit collection bag for collection. Another example is a portable handheld pepper picking device disclosed in Chinese Patent 202420005794X, which includes a device body, a handle connected to one end of the device body, a control panel connected to the upper end of the handle, a detachable battery connected to one end of the device body, a motor connected to one end of the motor, a connecting shaft connected to one end of the connecting shaft, a fork-shaped blade connected to one end of the device body, a knife holder connected to the upper end of the knife holder, a fixing nut connected to one end of the knife holder, a threaded connection seat connected to the bottom of the threaded connection seat, a threaded connection ring connected to the bottom of the threaded connection ring, and a collection bag connected to the bottom of the threaded connection ring. The utility model uses a motor to drive the fork-shaped blade to pick the pepper, and the collected pepper is collected by the collection bag. The above-mentioned prior art all uses a rotary cutting method to pick pepper. The high-speed rotating picking tool has a short contact time with the pepper branch and a long idling time, resulting in low effective utilization of electricity and serious waste of resources. Summary of the Invention

[0003] The purpose of the present invention is to provide a handheld pepper picking machine, which is used to solve the problems of long idling time of picking tools and low picking efficiency in the existing picking machines that use a rotary cutting structure to pick peppers.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a handheld pepper picking machine, including a box shell, a handle, comb teeth, a cutter, a motor and a crank rocker mechanism, the front end and the bottom of the box shell are open, the box shell is located at the front end of the handle, the front end of the box shell has comb teeth, the cutter is located above the comb teeth, the motor is fixed to the box shell, the crank rocker mechanism includes a crank, a rocker and a connecting rod, the first end of the crank is fixedly connected to the motor output shaft, the second end of the crank is hinged to the middle section of the connecting rod, and the first end of the rocker is rotatably connected to the box shell The second end of the rocker is hingedly connected to the first end of the connecting rod, and the second end of the connecting rod is fixedly connected to the cutter; the handle is provided with a battery for powering the motor and a switch for controlling the electrical connection between the battery and the motor; when the crank rotates, the trajectory of the cutter driven by the connecting rod is divided into four stages: in the first stage, the cutter moves backward and downward to pull the peppercorns onto the comb teeth; in the second stage, the cutter continues to move backward and downward to cut off the peppercorn branches; in the third stage, the cutter moves backward and upward to push the peppercorns into the box shell; in the fourth stage, the cutter moves forward until it returns to the starting point.

[0005] Furthermore, the handle is fixedly connected to the box shell.

[0006] Furthermore, the front end of the handle has two ear plates, and the rear end of the box shell has a boss, the boss extends between the two ear plates and a damping member is provided between the two; the setting of the damping member enables the handle and the box shell to remain relatively fixed.

[0007] Furthermore, the comb teeth are in a comb-tooth structure, and the tooth frame of the comb teeth is plug-connected to the front end of the box shell and fixedly connected to the box shell by screws.

[0008] Furthermore, the top of the box shell is provided with a support plate, and the crank and the rocker are both rotatably connected to the support plate.

[0009] Furthermore, the battery is located at the rear end of the handle, and the battery is plug-connected or snap-connected to the handle.

[0010] Furthermore, the handle is provided with a speed regulator, and the speed regulator is used to adjust the rotation speed of the motor output shaft.

[0011] Furthermore, the cutter is provided with a knife holder and the two are fixedly connected by screws, and the knife holder is fixedly connected to the second end of the connecting rod.

[0012] Furthermore, there are two crank-rocker mechanisms arranged on the left and right, the crank of the first crank-rocker mechanism is the active part, and the crank of the second crank-rocker mechanism is the driven part; the first end of the tool holder is fixedly connected to the second end of the connecting rod of the first crank-rocker mechanism, and the second end of the tool holder is fixedly connected to the second end of the connecting rod of the second crank-rocker mechanism.

[0013] Furthermore, the motor is located at the top of the box shell, and the crank rocker mechanism is located on the left or right side of the box shell.

[0014] The beneficial effects of the present invention are as follows: the present invention drives the cutter movement through a crank rocker mechanism, and the cutter movement process is divided into four stages. In the first stage, the cutter pulls the pepper branch above the comb teeth. In the second stage, the cutter speed is reduced to achieve cutting of the pepper branch and protect the pepper fruit in the form of reduced speed. In the third stage, the cutter pushes the pepper into the box shell for collection. According to the quick return motion characteristics of the crank rocker mechanism, in the fourth stage, the cutter is unloaded and the movement speed is accelerated so as to return to the starting point as quickly as possible. The pull-cut-push-quick return motion mode reduces the cutter's unloaded movement time, shortens the unloaded operation time, and allows the cutter to be quickly reset, thereby improving the efficiency of picking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the first embodiment of the present invention;

[0016] Figure 2 It is a left side view of the first embodiment of the present invention;

[0017] Figure 3 The cutter running trajectory diagram of the present invention;

[0018] Figure 4 A top view of a second embodiment of the present invention;

[0019] Figure 5 This is a front view of the second embodiment of the present invention;

[0020] In the figure: 1 box shell, 11 boss, 2 motor, 3 crank, 4 connecting rod, 5 rocker, 6 knife holder, 61 cutter, 7 comb teeth, 71 tooth rack, 8 handle, 81 ear plate, 9 battery, 10 switch, 11 speed regulator, 12 support plate, 13 slot, A first stage, B second stage, C third stage, D fourth stage. DETAILED DESCRIPTION

[0021] like Figures 1 to 5 As shown, the present invention includes a box shell 1, a motor 2, a crank 3, a connecting rod 4, a rocker 5, a cutter 61, comb teeth 7, a handle 8, a battery 9, a switch 10 and a speed regulator 11. The structure, working principle and usage of the present invention are described in detail below with reference to the accompanying drawings.

[0022] Example 1:

[0023] like Figures 1 to 2As shown, a handheld pepper picking machine includes a box shell 1, a handle 8, comb teeth 7, a cutter 61, a motor 2 and a crank rocker mechanism. The box shell 1 is a rectangular parallelepiped structure, and the corners are rounded as needed. The front end and bottom of the box shell 1 are open, and the box shell 1 is located at the front end of the handle 8. There are two ways to assemble the box shell 1 and the handle 8, one is a fixed connection, and the other is an adjustable movable connection. The box shell 1 and the handle 8 can be fixedly connected by screws / bolts or snap connections. In this case, the relative angle between the box shell 1 and the handle 8 cannot be adjusted. When the handle 8 and the box shell 1 are movably connected, there are two ear plates 81 at the front end of the handle 8, and a boss 11 at the rear end of the box shell 1. The boss 11 extends between the two ear plates 81, and a damping member is provided between the boss 11 and the two ear plates 81. The setting of the damping member makes there is a large friction between the ear plates 81 and the boss 11, and it is necessary to manually bend it to make the box shell 1 move relative to the handle 8 to adjust the angle. After the bending action between the box shell 1 and the handle 8 is cancelled, the handle 8 and the box shell 1 can remain relatively fixed.

[0024] like Figures 1 to 2 As shown, the front end of the casing 1 has comb teeth 7, which are used to comb and disperse the pepper branches. The comb teeth 7 are in a comb-tooth structure, and the tooth frame 71 of the comb teeth 7 is plug-connected to the front end of the casing 1. The tooth frame 71 and the casing 1 are fixedly connected by screws. To facilitate plug-in installation, a slot 13 is provided at the lower portion of the front end of the casing 1. After the tooth frame 71 extends into the slot 13, the tooth frame 71 is flush with the front wall of the casing 1. Screws are screwed into the bottom of the casing 1 to achieve a fixed connection between the casing 1 and the tooth frame 71. The detachable connection between the comb teeth 7 and the casing 1 facilitates the replacement of the comb teeth 7.

[0025] like Figures 1 to 2As shown, the cutter 61 is located above the comb teeth 7. The motor 2 is fixed to the casing 1. The crank-rocker mechanism includes a crank 3, a rocker 5, and a connecting rod 4. The first end of the crank 3 is fixedly connected to the output shaft of the motor 2, the second end of the crank 3 is hingedly connected to the middle section of the connecting rod 4, the first end of the rocker 5 is rotatably connected to the casing 1, the second end of the rocker 5 is hingedly connected to the first end of the connecting rod 4, and the second end of the connecting rod 4 is fixedly connected to the cutter 61. After the motor 2 is started, it directly drives the rotation of the crank 3. The rotation of the crank 3 drives the reciprocating swing of the rocker 5 through the connecting rod 4. During this process, the cutter 61 moves in a closed curve along with the second end of the connecting rod 4. To facilitate assembly, a support plate 12 extends upward from the top of the casing 1. The crank 3 and the rocker 5 are both rotatably connected to the support plate 12. The support plate 12 is part of the casing 1. To facilitate the fixed connection between the cutter 61 and the connecting rod 4, the cutter 61 is provided with a blade holder 6. The cutter 61 and the blade holder 6 are fixedly connected by screws, and the blade holder 6 is fixedly connected to the second end of the connecting rod 4. The detachable assembly of the cutter 61 and the blade holder 6 facilitates the replacement of a severely worn cutter 61.

[0026] like Figure 1 As shown, the handle 8 has a battery 9 for powering the motor 2, and a switch 10 for controlling the electrical connection between the battery 9 and the motor 2. The battery 9 is located at the rear end of the handle 8, and a groove for installing the battery 9 is provided at the rear end of the handle 8. The battery 9 is plug-connected or snap-connected to the handle 8. After the battery 9 is inserted into the groove, the battery 9 contacts the conductive sheet in the groove. When the switch 10 is pressed, the motor 2 and the battery 9 can be connected. At this time, the battery 9 supplies power to the motor 2, and the motor 2 outputs a rotational motion. When the switch is pressed again, the electrical connection between the motor 2 and the battery 9 can be cut off. At this time, the motor 2 is in a stopped state. In order to adjust the rotation speed of the crank 3, that is, to adjust the output power of the motor 2, a speed regulator 11 is provided on the handle 8. The speed regulator 11 is used to adjust the rotation speed of the output shaft of the motor 2.

[0027] In order to avoid the peppercorns and facilitate their entry into the casing 1 from the front, the motor 2 is arranged on the top of the casing 1, and the crank rocker mechanism is arranged on the left or right side of the casing 1. In this way, there is only a cutter 61 at the front of the casing 1. When the cutter 61 is raised, it is convenient for the peppercorns to enter. When the cutter 61 moves backward, it can pull the peppercorns toward the inner cavity of the casing 1.

[0028] like Figure 3As shown, the trajectory of the cutter 61 driven by the connecting rod 4 when the crank 3 rotates can be divided into four stages: A, B, C, and D. In stage A, i.e., the first stage, the cutter 61 moves backward and downward to pull the peppercorns onto the comb teeth 7; in stage B, i.e., the second stage, the cutter 61 continues to move backward and downward to cut the peppercorn branches; in stage C, i.e., the third stage, the cutter 61 moves backward and upward to push the peppercorns into the casing 1. Since the bottom of the casing 1 is open, the peppercorns fall through the bottom of the casing 1. A collection bag can be provided below the casing 1 so that the fallen peppercorns fall into the collection bag for collection; in stage D, i.e., the fourth stage, the cutter 61 moves forward until it returns to the starting point.

[0029] Example 2:

[0030] As the second embodiment of the present invention, Figure 4 、 Figure 5 As shown, the difference between Example 2 and Example 1 lies in the presence of two crank-rocker mechanisms, one on the left and one on the right. The crank 3 of the first crank-rocker mechanism is the active element, while the crank 3 of the second crank-rocker mechanism is the passive element. Specifically, when the motor 2 drives the crank 3 connected to it to rotate, the connecting rod 4 of the first crank-rocker mechanism moves, driving the cutter 61. The movement of the cutter 61 in turn drives the connecting rod 4 of the second crank-rocker mechanism, which in turn drives the crank 3 and rocker 5 of the second crank-rocker mechanism. The first end of the tool holder 71 is fixedly connected to the second end of the connecting rod 4 of the first crank-rocker mechanism, while the second end of the tool holder 71 is fixedly connected to the second end of the connecting rod 4 of the second crank-rocker mechanism. In Example 2, crank-rocker mechanisms are provided at both ends of the cutter 61 to ensure the stability of the cutter 61. The first crank-rocker mechanism drives the movement of the cutter 61, while the second crank-rocker mechanism cooperates with the first crank-rocker mechanism to maintain the stability of the cutter 61.

[0031] The working principle of the present invention is described below:

[0032] (1) Press the switch 10 to start the entire picking machine. At this time, the motor 2 starts and drives the cutter 61 to move through the crank rocker mechanism; (2) When the speed regulator 11 is rotated, the output speed of the motor 2 can be adjusted, thereby adjusting the movement speed of the cutter 61; (3) When the cutter 61 moves, the movement trajectory is divided into four stages, which respectively perform the actions of pulling the peppercorns to the comb teeth 7, cutting the peppercorn branches, pushing the peppercorns into the box shell 1, and returning to the origin; the crank rocker mechanism's own quick return feature allows the cutter 61 to quickly return to the origin after performing the actions of pulling the peppercorns, cutting the peppercorn branches, and pushing the peppercorns, so as to perform the picking action again. During the entire movement process of the cutter 61, the movement time of the cutter 61 in the first three stages is relatively long, and the cutter 61 is in a loaded state. In the fourth stage of the cutter 61 movement, the cutter 61 is in an unloaded state. The unloaded operation time of the cutter 61 is short, thereby reducing the reactive power loss of the cutter. In addition, the cutter 61 can be quickly reset, thereby improving the picking efficiency.

[0033] The following describes the method of using the invention:

[0034] First, assemble the battery 9 and handle 8. Then, hold the handle 8 and press the switch 10 to start the picker. Finally, extend the picker to the fruit on the pepper tree to pick the peppers. When picking, the pepper branches can enter between the comb teeth 7 or directly above the comb teeth 7.

[0035] The present invention uses a crank-rocker mechanism to drive the cutter 61. The movement of the cutter 61 is divided into four stages. In the first stage, the cutter 61 pulls the pepper branches above the comb teeth 7. In the second stage, the cutter 61 slows down to cut the pepper branches and protect the pepper fruits at a reduced speed. In the third stage, the cutter 61 pushes the peppers into the box shell 1 for collection. Due to the quick return motion characteristics of the crank-rocker mechanism, in the fourth stage, the cutter 61 is unloaded and the movement speed is accelerated to quickly return to the starting point. This pull-cut-push-quick return motion method reduces the cutter's unloaded movement time and shortens the unloaded operation time. The cutter 61 can quickly reset, thereby improving picking efficiency.

Claims

1. A handheld pepper picker, comprising a housing, a handle, a cutter, and a motor, wherein the handle has a battery for powering the motor and a switch for controlling the electrical connection between the battery and the motor, characterized in that: The cam is secured to the front of the drive means and the drive means is secured to the drive means by a screw thread member which is secured to the front of the drive means and the drive means is secured to the front of the drive means.

2. A handheld pepper picking machine according to claim 1, characterized in that: The handle is fixedly connected to the box shell.

3. The handheld pepper picking machine according to claim 1, characterized in that: The front end of the handle has two ear plates, and the rear end of the box shell has a boss. The boss extends between the two ear plates and a damping member is provided between the two. The arrangement of the damping member enables the handle and the box shell to remain relatively fixed.

4. The handheld pepper picking machine according to claim 1, characterized in that: The comb teeth are in a comb-teeth structure, and the tooth frame of the comb teeth is plug-connected with the front end of the box shell, and the fixed connection between the tooth frame and the box shell is achieved by screws.

5. The handheld pepper picking machine according to claim 1, characterized in that: The top of the box shell is provided with a support plate, and the crank and the rocker are both rotatably connected to the support plate.

6. The handheld pepper picking machine according to claim 1, characterized in that: The battery is located at the rear end of the handle, and the battery is plug-connected or snap-connected to the handle.

7. The handheld pepper picking machine according to claim 1, characterized in that: The handle is provided with a speed regulator, and the speed regulator is used to adjust the rotation speed of the motor output shaft.

8. The handheld pepper picking machine according to claim 1, characterized in that: The cutter is provided with a knife holder and the two are fixedly connected via screws, and the knife holder is fixedly connected to the second end of the connecting rod.

9. The handheld pepper picking machine according to claim 8, characterized in that: There are two crank-rocker mechanisms arranged on the left and right, the crank of the first crank-rocker mechanism is the active part, and the crank of the second crank-rocker mechanism is the driven part; the first end of the tool holder is fixedly connected to the second end of the connecting rod of the first crank-rocker mechanism, and the second end of the tool holder is fixedly connected to the second end of the connecting rod of the second crank-rocker mechanism.

10. The handheld pepper picking machine according to claim 1, characterized in that: The motor is located on the top of the box shell, and the crank rocker mechanism is located on the left or right side of the box shell.

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