Tomato pruning device

Abstract

This utility model relates to the field of tomato planting technology, specifically to a tomato pruning device, comprising a machine body, a pruning mechanism located in the middle of one end of the machine body, the pruning mechanism including a side plate, a turntable rotatably mounted on one side of the middle of the side plate, a cam groove in the middle of the turntable, a fixed plate fixedly mounted on one end of the side plate, an L-shaped plate fixedly mounted on one end of the fixed plate, a movable groove in the middle of the fixed plate, a pushing connecting rod slidably engaged in the middle of the cam groove, one end of the pushing connecting rod slidably engaged in the middle of the movable groove and fixedly mounted on a U-shaped plate, sliding rods fixedly mounted on one side of each end of the U-shaped plate, and clamping plates rotatably mounted above and below the middle of the movable groove. This utility model solves the problem that traditional tomato pruning devices are mostly manual pruning pliers or lever-type shears, requiring operators to repeatedly open and close them manually to complete the pruning, which has many shortcomings in practical use.

Description

Technical Field

[0001] This utility model relates to the field of tomato planting technology, specifically a tomato pruning device. Background Technology

[0002] Tomato cultivation refers to the entire agricultural production activity of cultivating tomato plants artificially, from seed germination to fruit ripening. It covers multiple stages such as seed selection, seedling cultivation, field management, pest and disease control, and harvesting. It is one of the most widely carried out vegetable cultivation projects in the world. Because tomatoes have a strong branching ability, in order to prevent tomatoes from consuming a lot of nutrients by only growing branches and seriously affecting the fruiting, tomatoes must be pruned in a timely manner during the cultivation process, and a small number of fruiting branches must be left intentionally. Pruning is a field management stage.

[0003] Traditional tomato pruning devices are mostly manual pruning shears or lever-operated shears, requiring operators to repeatedly open and close them manually to complete the cuts. This has several drawbacks in practical use. For example, it is inefficient and labor-intensive; manual operation relies on repeated opening and closing of the shears, which requires a significant investment of manpower and time for large-scale planting. Furthermore, prolonged tool handling can easily lead to hand muscle strain and even occupational diseases such as tenosynovitis. In addition, pruning precision is difficult to guarantee. During manual operation, the position and angle of the cut depend on the operator's experience, making precise control difficult. This can easily result in missed pruning of side branches, uneven cuts, or even accidental damage to the main stem, affecting plant growth and fruit quality. Utility Model Content

[0004] One of the technical problems that this application aims to solve is that traditional tomato pruning devices are mostly manual pruning pliers or lever-type shears, which require operators to repeatedly open and close them manually to complete the cutting, resulting in many shortcomings in actual use.

[0005] To solve the above-mentioned technical problems, this application provides a tomato pruning device, including a machine body. A pruning mechanism is provided in the middle of one end of the machine body. The pruning mechanism includes a side plate. A turntable is rotatably mounted on one side of the middle of the side plate. A cam groove is opened in the middle of the turntable. A fixing plate is fixedly mounted on one end of the side plate. An L-shaped plate is fixedly mounted on one end of the fixing plate. A movable groove is opened in the middle of the fixing plate. A push rod is slidably engaged in the middle of the cam groove. A U-shaped plate is fixedly mounted in the middle of the movable groove. A sliding rod is fixedly mounted on one side of both ends of the U-shaped plate. Clamping plates are rotatably mounted on the upper and lower sides of the middle of the movable groove. A guide groove is opened at one end of each clamping plate. A cutting blade is fixedly mounted on one side of each clamping plate by screws.

[0006] In some embodiments, a handle is fixedly installed at the lower part of the other end of the body, and a switch is provided on one side of the handle.

[0007] In some embodiments, a storage slot is provided in the middle of the grip, and a partition is fixedly installed in the middle of the partition.

[0008] In some embodiments, sliding grooves are provided on both sides of the lower middle part of the grip, and a base plate is slidably engaged in the middle of the sliding groove. A mounting groove is provided on one side of the end of the body, and a heat dissipation mesh is fixedly installed in the middle of the mounting groove.

[0009] In some embodiments, a drive motor is fixedly installed in the middle of the mounting slot, the output end of the drive motor passes through the body and side plate and is fixedly connected to the middle of the turntable, and one end of the drive motor is snapped into the middle of the heat dissipation mesh.

[0010] In some embodiments, a spring is fixedly installed at the middle of one end of each of the two clamping plates, and the two sliding rods are respectively slidably engaged in the middle of the corresponding guide grooves. One end of each of the two guide grooves is far away from each other, and the two cutting blades are symmetrically distributed.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. When in use, this utility model drives the turntable to rotate via a drive motor, and the cam linkage mechanism enables the blade to automatically close at high frequency. The continuous rotation of the turntable drives the blade to achieve an automatic cycle from cutting to resetting. There is no need for manual repeated opening and closing of the tool, which is especially suitable for large-scale planting scenarios. It can avoid the decline in work efficiency caused by human fatigue. A single person can efficiently complete large-area pruning, which greatly reduces labor costs and labor intensity.

[0013] 2. When this utility model is in use, the storage slots inside the handle, which are divided into two spaces by a partition, can hold a whetstone for sharpening the cutting blade and a new cutting blade for replacement, respectively. This can effectively extend the single operation time and avoid interruption of operation due to blade breakage or insufficient sharpness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the grip of this utility model;

[0017] Figure 4 This is a cross-sectional view showing the connection between the machine body and the cutting mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram showing the connection relationship of the various components of the cutting mechanism of this utility model.

[0019] In the diagram: 1. Body; 11. Handle; 12. Switch; 13. Mounting slot; 14. Heat dissipation mesh; 15. Partition; 16. Storage slot; 17. Sliding slot; 18. Base plate; 2. Cutting mechanism; 20. Drive motor; 21. Side plate; 22. Turntable; 23. Cam groove; 24. Push linkage; 25. Fixing plate; 26. L-shaped plate; 27. U-shaped plate; 28. Slide rod; 29. ​​Movable slot; 30. Clamping plate; 31. Spring; 32. Guide groove; 33. Cutting blade. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1-5 This utility model provides a technical solution: a tomato pruning device, including a machine body 1, a pruning mechanism 2 located in the middle of one end of the machine body 1, the pruning mechanism 2 including a side plate 21, a turntable 22 rotatably mounted on one side of the middle of the side plate 21, a cam groove 23 formed in the middle of the turntable 22, a fixing plate 25 fixedly mounted on one end of the side plate 21, an L-shaped plate 26 fixedly mounted on one end of the fixing plate 25, a movable groove 29 formed in the middle of the fixing plate 25, a pushing connecting rod 24 slidably engaged in the middle of the cam groove 23, one end of the pushing connecting rod 24 slidably engaged in the middle of the movable groove 29 and fixedly mounted with a U-shaped plate 27, and sliding rods 2 fixedly mounted on one side of both ends of the U-shaped plate 27. 8. Clamping plates 30 are rotatably installed on the upper and lower sides of the middle of the movable slot 29. One end of each clamping plate 30 is provided with a guide groove 32. A cutting blade 33 is fixedly installed on one side of each clamping plate 30 by screws. A drive motor 20 is fixedly installed in the middle of the mounting slot 13. The output end of the drive motor 20 passes through the body 1 and the side plate 21 and is fixedly connected to the middle of the turntable 22. One end of the drive motor 20 is snapped into the middle of the heat dissipation mesh 14. A spring 31 is fixedly installed in the middle of one end of each of the two clamping plates 30. Two sliding rods 28 are respectively slidably snapped into the middle of the corresponding guide grooves 32. One end of each guide groove 32 is far away from each other. The two cutting blades 33 are symmetrically distributed.

[0022] In this embodiment, the drive motor 20 is electrically connected to an external power supply. The drive motor 20 drives the turntable 22 to rotate. During the rotation of the turntable 22, the push rod 24, which is slidably engaged with the central cam groove 23, moves accordingly. This allows the push rod 24 to move back and forth along the trajectory of the cam groove 23. The L-shaped plate 26 limits the position of the cam groove 23 to prevent it from shifting. As the push rod 24 drives the U-shaped plate 27 to move back and forth, the slide rod 28 of the U-shaped plate 27 also moves back and forth in the guide groove 32 at the end of the clamping plate 30. When the slide rod 28 moves to the other end of the guide groove 32, the other ends of the two guide grooves 32 move away from each other, thus pressing... The two clamps 30 are forced to move closer to each other and the cutting blades 33 generate shearing force, which can trim the branches of the tomato seedlings. As the turntable 22 rotates, the cutting blades 33 installed on the two clamps 30 will also move closer and further away from each other, allowing the user to continuously trim the branches of the tomato seedlings. This can effectively save the user's physical strength and greatly improve work efficiency. The springs 31 at the ends of the two clamps 30 can assist the reset of the two clamps 30 each time the U-shaped plate 27 drives the slide bar 28 to reset from the opposite end of the guide groove 32. The heat dissipation mesh 14 can form an effective natural air circulation path near the drive motor 20, providing it with good heat dissipation.

[0023] Example 2: Figures 1-2 As shown, a handle 11 is fixedly installed at the lower part of the other end of the body 1. A switch 12 is provided on one side of the handle 11. A storage slot 16 is opened in the middle of the handle 11. A partition 15 is fixedly installed in the middle of the partition 15. Sliding grooves 17 are opened on both sides of the lower middle part of the handle 11. A base plate 18 is slidably engaged in the middle of the sliding groove 17. An installation groove 13 is opened on one side of the end of the body 1. A heat dissipation mesh 14 is fixedly installed in the middle of the installation groove 13.

[0024] In this embodiment, the handle 11 allows the user to hold it, making it convenient for the user to control the entire device. The switch 12 can control the start and stop of the drive motor 20. The storage slot 16 inside the handle 11 is divided into two spaces by the partition 15, allowing the user to store different items, such as a whetstone for sharpening the cutting blade 33 and new cutting blades 33 for replacement. The bottom of the handle 11 is slidably attached to the bottom plate 18, which can close the partition 15 that divides the storage space into two spaces to prevent the stored items from falling out. The mounting slot 13 provides space for the installation of the drive motor 20.

[0025] like Figures 1-5As shown, before use, a whetstone for sharpening the cutting blade 33 and a new cutting blade 33 for replacement can be placed into the storage slot 16, which is divided into two spaces by the partition 15 inside the handle 11, and then sealed by the base plate 18. Then, holding the entire device, the drive motor 20 is electrically connected to an external power source. The cutting mechanism 2 is aligned with the tomato seedling branch that needs to be cut, and the switch 12 is pressed. After the drive motor 20 is powered on, the motor outputs rotational power, which directly drives the turntable 22 to rotate around the axis. The cam groove 23 in the middle of the turntable 22 is slidably engaged with the push rod 24. When turntable 22 rotates, the curved trajectory of cam groove 23 forces push linkage 24 to reciprocate linearly along its trajectory, converting the rotational motion of the motor into linear motion. This linear motion of linkage 24 then drives U-shaped plate 27 to move back and forth. The slide rods 28 at both ends of U-shaped plate slide within the guide grooves 32 of clamping plate 30. When the slide rods 28 move to the ends of guide grooves 32 that are far apart, the inclined trajectory of guide grooves 32 forces clamping plate 30 to rotate around the fulcrum, causing the cutting blades 33 on both sides to move closer to each other, forming a shearing force to cut off the tomato side branches. Because the guide grooves 32 are designed to "expand outwards" at both ends, the slide rods 28 will enlarge the clamping plate at the end. The closing radius of 30 ensures that the blade accurately contacts and cuts the branch. The turntable 22 rotates continuously, pushing the connecting rod 24 to reciprocate, causing the slide rod 28 to slide back and forth in the guide groove 32, driving the blade to continuously close and open, achieving continuous pruning. The L-shaped plate 26 forms a mechanical limit on the cam groove 23 to prevent the pushing connecting rod 24 from deviating during movement, ensuring that the slide rod 28 moves along the preset trajectory, avoiding the blade from accidentally cutting the main stem or deviating from the target. The spring 31 at the end of the clamping plate 30 provides tension when the slide rod 28 returns to the far end of the guide groove 32, assisting the clamping plate 30 to open quickly, preparing for the next cut, while buffering the impact force when closing and protecting the device components.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A tomato pruning device, comprising a body (1), wherein a cutting mechanism (2) is provided at the middle of one end of the body (1), characterized in that: The cutting mechanism (2) includes a side plate (21). A turntable (22) is rotatably mounted on one side of the middle of the side plate (21). A cam groove (23) is provided in the middle of the turntable (22). A fixing plate (25) is fixedly mounted on one end of the side plate (21). An L-shaped plate (26) is fixedly mounted on one end of the fixing plate (25). A movable groove (29) is provided in the middle of the fixing plate (25). A push rod is slidably engaged in the middle of the cam groove (23). (24) One end of the push link (24) is slidably engaged in the middle of the movable groove (29) and a U-shaped plate (27) is fixedly installed thereon. A sliding rod (28) is fixedly installed on one side of both ends of the U-shaped plate (27). A clamping plate (30) is rotatably installed on the upper and lower sides of the middle of the movable groove (29). A guide groove (32) is opened on one end of the two clamping plates (30). A cutting blade (33) is fixedly installed on one side of the two clamping plates (30) by screws.

2. The tomato pruning device according to claim 1, characterized in that: A handle (11) is fixedly installed on the lower part of the other end of the body (1), and a switch (12) is provided on one side of the handle (11).

3. The tomato pruning device according to claim 2, characterized in that: The grip (11) has a storage slot (16) in the middle, and a partition (15) is fixedly installed in the middle of the storage slot (16).

4. The tomato pruning device according to claim 2, characterized in that: The grip (11) has sliding grooves (17) on both sides of the lower middle part. The bottom plate (18) is slidably engaged in the middle of the sliding groove (17). The body (1) has an installation groove (13) on one side of the end. A heat dissipation mesh (14) is fixedly installed in the middle of the installation groove (13).

5. A tomato pruning device according to claim 4, characterized in that: A drive motor (20) is fixedly installed in the middle of the mounting slot (13). The output end of the drive motor (20) passes through the body (1) and the side plate (21) and is fixedly connected to the middle of the turntable (22). One end of the drive motor (20) is snapped into the middle of the heat dissipation mesh (14).

6. A tomato pruning device according to claim 1, characterized in that: A spring (31) is fixedly installed at the middle of one end of each of the two clamping plates (30), and the two sliding rods (28) are respectively slidably engaged in the middle of the corresponding guide grooves (32). One end of each of the two guide grooves (32) is far away from each other, and the two cutting blades (33) are symmetrically distributed.

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