Tobacco plant topping device

Abstract

The utility model relates to the technical field of tobacco field planting, and in particular to a tobacco plant topping device, the device comprises a hollow tool box with one side open toward the tobacco plant direction, a positioning plate is fixedly arranged on the top surface of the tool box, a limited position slide groove is arranged on the side of the top surface of the tool box away from the tobacco plant direction, the bottom end of a slide rod slidingly matched with the limited position slide groove is inserted into the tool box and vertically connected to the tool, a pulling ring is also arranged at the open end of the tool box, and the pulling ring is connected to the tool through a transmission mechanism. The utility model has a simple structure and can be operated with one hand, and greatly improves the efficiency of topping operation on the basis of ensuring the safety of the operator.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco field planting, in particular to a tobacco plant topping device. Background Art

[0002] Topping is an important operation in tobacco field management. By cutting off the stems at the top of the tobacco plants, the tobacco leaves can be more fully developed and the quality of the leaves can be improved. The topping operation is generally carried out during the budding period of the tobacco plants, when buds appear on the top of the plants and some of the buds are allowed to bloom.

[0003] Existing topping tools include mechanized topping machines, but topping machines are more suitable for topping during the flowering period. At this time, the top stems completely pass over the leaves, so the probability of top leaves being damaged can be reduced. However, there are still other problems in actual application, that is, the growth of tobacco plants is different and the ground is uneven, so it is easy to cause the most valuable top leaves to be broken. Therefore, in actual operation, it still relies on a relatively transmission knife to cooperate with manual operation, but because the tobacco stems are thick and have a wood layer, it is easy to cause knife injuries if the operation is improper. Moreover, in the early stage of budding, one hand must be used to push the leaves near the buds, and the other hand must be used to cut the stems where the buds are located, which is time-consuming and laborious. Utility Model Content

[0004] The utility model aims to provide a tobacco plant topping device. The utility model has a simple structure and can be operated with one hand, thereby greatly improving the topping operation efficiency on the basis of ensuring the safety of the operator.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tobacco plant topping device comprises a hollow tool box with one side open toward the tobacco plant, a positioning plate is fixedly provided on the top surface of the tool box, a limiting slide groove is provided on the side of the top surface of the tool box away from the tobacco plant direction, the bottom end of a slide rod slidably matched with the limiting slide groove extends into the tool box and is vertically connected to the tool, and a pulling ring is also provided at the open end of the tool box, and the pulling ring is connected to the tool through a transmission mechanism.

[0007] Preferably, the transmission mechanism includes a driving rack and a driven rack which are arranged in parallel and at the same height, and a gear which is arranged between the driving rack and the driven rack and meshes with the two racks. The gear is coaxially provided with a rotating shaft and the rotating shaft is assembled with a bearing preset on the bottom wall of the tool box.

[0008] Preferably, the cutter comprises an arc-shaped blade connected to one end of the active rack facing the tobacco plant, and the other end of the rack is vertically connected to the slide bar; the driven rack is connected to the pulling ring.

[0009] Preferably, the pulling ring comprises an arc-shaped plate arranged corresponding to the arc-shaped blade and a limit stopper fixedly connected to one end of the arc-shaped plate, and the limit stopper is connected to an end of the driven rack away from the gear.

[0010] Preferably, the inner arc surface of the arc plate is arranged toward the arc blade and is provided with an anti-skid pad layer.

[0011] Preferably, a through hole is provided at the top of the slide rod, a limiting rod passing through the through hole is provided on the positioning plate, a protrusion is provided at the free end of the limiting rod, and a return spring is sleeved on the limiting rod between the positioning plate and the slide rod.

[0012] The working process of this utility model is as follows:

[0013] First, place your fingers on the positioning plate so that the slide bar is located at the base of your palm, then move the device to the top of the tobacco plant, and then move the stem at the top of the tobacco plant into the gap between the arc plate and the tool box, and finally make the stem close to the limit baffle, then use your palm to make the slide bar overcome the elastic force of the reset spring and move the slide bar toward the positioning plate, and the slide bar drives the active rack and the arc blade to move in a straight line so that the arc blade moves out of the tool box, and at the same time, the active rack drives the driven rack into the tool box through the meshing transmission of the gear, and at the same time, the driven rack drives the arc plate and the stem to move toward the tool box, and when the arc blade contacts the arc plate, the stem can be removed. Then, unload the palm force, and the reset spring drives the corresponding components to reset, and the next tobacco plant can be toppled.

[0014] In the utility model, the limit stopper is arranged close to the stem, which can ensure that the stem is within the cutting range of the arc blade, and the anti-skid pad is arranged to prevent the stem from sliding on the inner arc surface of the arc plate, causing the stem to partially move out of the cutting range. In addition, during the cutting process, the arc plate pulls the stem, greatly improving the cutting effect.

[0015] When the utility model is not in use, the arc-shaped blade is located in the tool box to prevent the sharp blade from hurting people.

[0016] Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure and can be operated with one hand, thereby greatly improving the efficiency of topping operations while ensuring the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the topping device described in the specific implementation method;

[0018] Figure 2 It is a schematic diagram of the internal structure of the tool box of the topping device according to the specific implementation method. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] like Figure 1-2 As shown, a tobacco plant topping device comprises a hollow tool box 1 with one side open toward the tobacco plant, a positioning plate 11 is fixedly arranged on the top surface of the tool box 1, a limiting slide groove 12 is arranged on the side of the top surface of the tool box 1 away from the tobacco plant direction, the bottom end of a slide rod 2 which slides with the limiting slide groove 12 extends into the tool box 1 and is fixedly connected with one end of an active rack 21, and an arc-shaped blade 25 is connected to the end of the active rack 21 facing the tobacco plant.

[0021] The top of the slide bar 2 is provided with a through hole, the positioning plate 11 is provided with a limiting rod 13 passing through the through hole and a protrusion 14 is provided at the free end of the limiting rod, and a return spring 15 is sleeved on the limiting rod 13 between the positioning plate 11 and the slide bar 2.

[0022] The bottom wall of the tool box 1 is also slidably provided with a driven rack 22 which is parallel to the active rack 21 and arranged at the same height. A gear 23 is provided between the active rack 21 and the driven rack 22 to mesh and transmit the two racks. The gear 23 is coaxially provided with a rotating shaft 24 and the rotating shaft 24 is assembled with a bearing preset on the inner bottom wall of the tool box 1.

[0023] The device also includes a pulling ring for pulling the tobacco stems, the pulling ring includes an arc plate 3 arranged corresponding to the arc blade 25 and a limit stopper 31 fixedly connected to one end of the arc plate 3, and the limit stopper 31 is connected to the end of the driven rack 22 away from the gear 23. The inner arc surface of the arc plate 3 is arranged toward the arc blade 25 and is provided with an anti-slip pad layer.

[0024] The working process of this utility model is as follows:

[0025] First, place your fingers on the positioning plate 11 so that the slide bar 2 is located at the base of your palm, then move the device to the top of the tobacco plant, and then move the stem at the top of the tobacco plant into the gap between the arc plate 3 and the tool box 1, and finally make the stem close to the limit baffle 31, then use your palm to make the slide bar 2 overcome the elastic force of the reset spring 15 and move the slide bar 2 toward the positioning plate 11, and the slide bar 2 drives the active rack 21 and the arc blade 25 to move straightly so that the arc blade 25 moves out of the tool box 1, and at the same time, the active rack 21 drives the driven rack 22 into the tool box 1 through the meshing transmission of the gear 23, and at the same time, the driven rack 22 drives the arc plate 3 and the stem to move toward the tool box 1, and when the arc blade 25 contacts the arc plate 3, the stem can be cut. Then, unload the palm force, and the reset spring 15 drives the corresponding components to reset, and the next tobacco plant can be topped.

[0026] In the utility model, the limit stopper 31 is arranged close to the stem, which can ensure that the stem is within the cutting range of the arc blade 25, and the anti-skid pad is arranged to prevent the stem from sliding on the inner arc surface of the arc plate 3, causing the stem to partially move out of the cutting range. In addition, during the cutting process, the arc plate 3 pulls the stem, greatly improving the cutting effect.

[0027] When the utility model is not in use, the arc-shaped blade 25 is located in the tool box 1 to prevent the sharp blade from hurting people.

Claims

1. A tobacco plant topping device, characterized in that: The device comprises a hollow tool box (1) with one side open toward the direction of the tobacco plants, a positioning plate (11) fixedly provided on the top surface of the tool box (1), a limiting slide groove (12) provided on the side of the top surface of the tool box (1) away from the direction of the tobacco plants, a bottom end of a slide rod (2) slidably engaged with the limiting slide groove (12) protruding into the tool box (1) and vertically connected to the tool, a pulling ring is further provided at the open end of the tool box (1), and the pulling ring is connected to the tool through a transmission mechanism.

2. The tobacco plant topping device according to claim 1, characterized in that: The transmission mechanism comprises a driving rack (21), a driven rack (22) arranged in parallel and at the same height, and a gear (23) arranged between the driving rack (21) and the driven rack (22) and meshing with the two racks; the gear (23) is coaxially provided with a rotating shaft (24), and the rotating shaft (24) is assembled with a bearing preset on the inner bottom wall of the tool box (1).

3. The tobacco plant topping device according to claim 2, characterized in that: The cutter comprises an arc-shaped blade (25) connected to one end of the active rack (21) facing the tobacco plant, and the other end of the rack (21) is vertically connected to the slide bar (2); the driven rack (22) is connected to the pulling ring.

4. The tobacco plant topping device according to claim 3, characterized in that: The pulling ring comprises an arc-shaped plate (3) arranged corresponding to the arc-shaped blade (25) and a limit stopper (31) fixedly connected to one end of the arc-shaped plate (3); the limit stopper (31) is connected to one end of the driven rack (22) away from the gear (23).

5. The tobacco plant topping device according to claim 4, characterized in that: The inner arc surface of the arc plate (3) is arranged toward the arc blade (25) and is provided with an anti-slip cushion layer.

6. The tobacco plant topping device according to claim 3, characterized in that: A through hole is provided at the top of the slide bar (2), a limiting rod (13) penetrating the through hole is provided on the positioning plate (11), a protrusion (14) is provided at the free end of the limiting rod, and a return spring (15) is sleeved on the limiting rod (13) between the positioning plate (11) and the slide bar (2).

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