Field tobacco plant membrane breaking and soil covering device

Abstract

The present application relates to the technical field of tobacco planting, and particularly relates to a field tobacco plant membrane breaking and soil cultivating device, which comprises a horizontally arranged platform with a hollow structure and an operating pipe vertically penetrating and fixed on the platform, the bottom of the operating pipe is concentrically fixed with a seedling cover, and the top of the operating pipe is provided with a handle; the two sides of the operating pipe are provided with adjusting plates with T-shaped sliding blocks fixed at the top, the two sliding blocks penetrate the slide ways formed on the bottom surface of the platform and are provided with screw holes, a screw rod is rotatably arranged in the platform and the thread segments with opposite rotation directions at the two ends of the screw rod are respectively matched with the screw holes of the two sliding blocks, the bottom of each adjusting plate is provided with a supporting rod, the bottom ends of the supporting rods of the two adjusting plates are oppositely horizontally bent, and the free ends of the supporting rods are provided with downward bent blades; and the platform is further provided with a transmission mechanism for transmitting the screw rod. The present application can simplify the existing manual membrane tearing and soil cultivating mode, improve the work efficiency, greatly reduce the labor intensity, has a simple overall structure, is low in cost and is convenient for market promotion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco planting, and particularly relates to a device for breaking mulch film and cultivating soil for tobacco plants in a field. BACKGROUND

[0002] Since the transplanting period of tobacco seedlings is in spring with large diurnal temperature difference, mulch film needs to be laid after the tobacco seedlings are transplanted in the field for heat preservation, but with the growth of the tobacco seedlings and the increase of the ambient temperature, the mulch film needs to be torn and cultivated for the first time. The torn mulch film, instead of being completely removed, provides space for the upward growth of the tobacco seedlings and prevents the death of the tobacco seedlings caused by the high temperature in the daytime. In addition, the mulch film can also provide heat preservation for the tobacco seedlings at night. Small cultivation of soil is to gather the soil near the tobacco seedlings, which is beneficial to the growth and development of the root system of the tobacco seedlings. The operation of the existing technology basically relies on manual operation, and the tobacco farmers need to repeatedly bend down to tear the film and gather the soil, which is laborious for the waist although the operation is simple. SUMMARY

[0003] The present application aims to provide a device for breaking mulch film and cultivating soil for tobacco plants in a field, which can simplify the existing manual film tearing and soil cultivating operation mode, improve work efficiency, greatly reduce labor intensity, has a simple overall structure, is low in cost, and is convenient for market promotion.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A device for breaking mulch film and cultivating soil for tobacco plants in a field, comprising a platform horizontally arranged and having a hollow structure, and an operation pipe vertically penetrating and fixed on the platform, wherein the bottom of the operation pipe is concentrically fixed with a seedling cover, and the top of the operation pipe is provided with a handle.

[0006] The operation pipe is provided with an adjusting plate on both sides, and the adjusting plate is fixed with a T-shaped sliding block at the top, wherein the sliding block penetrates a slide channel formed on the bottom surface of the platform and is provided with a screw hole, a screw rod is rotatably arranged in the platform, and the screw threads at the two ends of the screw rod are oppositely arranged and matched with the screw holes of the two sliding blocks, respectively, the bottom of the adjusting plate is provided with a supporting rod, and the bottom ends of the supporting rods of the two adjusting plates are oppositely horizontally bent, and the free ends of the supporting rods are provided with downwardly bent blades.

[0007] The platform is further provided with a transmission mechanism for transmitting the screw rod.

[0008] Preferably, the transmission mechanism comprises a transmission pipe vertically penetrating a preformed through hole of the platform, the top of the transmission pipe is closed, and a first rack is arranged at the middle segment of the length of the transmission pipe, and a first gear coaxially arranged on one end of the screw rod near the transmission pipe is used for engaging the first rack.

[0009] Preferably, the transmission mechanism further comprises an airtight tube arranged below the transmission tube, the top of the airtight tube is in airtight connection with the bottom of the transmission tube, the bottom of the airtight tube is in communication with an airtight box, the top of the airtight box is provided with a notch sealed by a silica gel airtight belt, and the outer wall of the airtight box is connected with the axle of the roller through a connecting rod.

[0010] Preferably, a horizontal partition plate is arranged in the airtight box, the top of the horizontal partition plate is connected with the airtight belt through a first spring, and a gas hole is arranged on the horizontal partition plate and in communication with the space above the horizontal partition plate and the airtight tube.

[0011] Preferably, the top end of the transmission tube is provided with a limiting block.

[0012] Preferably, the airtight belt is in a full state, the horizontal height of the airtight box is lower than the bottom end of the supporting rod, and the first gear is located above the first rack.

[0013] Preferably, the device comprises two soil cultivating plates arranged between the two adjusting plates, the two soil cultivating plates are in the form of curved plates and are symmetrically arranged on both sides of the operation tube, a notch for clamping the operation tube is arranged on the top plate body of the soil cultivating plate, and the axial length of the soil cultivating plate is greater than the axial length of the seedling cover.

[0014] Preferably, an operation rod is coaxially arranged in the operation tube, and a transmission bar is fixedly arranged at the bottom of the operation rod.

[0015] A rotating shaft is arranged on both sides of the operation rod and rotationally connected with the operation tube, the rotating shaft penetrates through the operation tube to the outside and is fixedly connected with the inner arc side wall at the bottom end of the corresponding soil cultivating plate.

[0016] A second gear is fixedly arranged on the shaft rod in the operation tube, and a second rack is arranged on both sides of the transmission bar and engaged with the corresponding second gear.

[0017] Preferably, a radially extending operation long hole is arranged at the top of the operation tube, a wrinkle leather sleeve is arranged on the outside of the operation long hole and fixedly connected with the outer wall of the operation tube at both ends, and an operation handle penetrating through the operation long hole and the wrinkle leather sleeve is vertically connected with the top of the operation rod.

[0018] Preferably, a limiting plate is further fixedly arranged in the operation tube, a positioning plate is fixedly arranged on the rod body of the operation rod below the limiting plate, and a return spring is sleeved on the rod body of the operation rod between the positioning plate and the limiting plate.

[0019] The working process of the device is as follows:

[0020] When in use, the handle is held in hand, and the invention is dragged along the side of the ridge by the roller. When it moves to the target position, the platform is lifted and kept horizontal, and then the platform is shaken back and forth to make the blade contact the film and cut the film above the seedling. (In this process, the transmission pipe will move upward relative to the platform, but the first rack has not contacted the first gear, because the ridge is basically at the same level, so the length of the transmission pipe above the first rack can be designed according to experience.)

[0021] Then the platform is kept horizontal and moved downward, so that the blades below the two adjusting plates enter the film cut. At this time, the operator keeps balance with one foot and steps on the air-tight belt with the other foot, so that the air-tight belt deforms to overcome the elastic force of the first spring. The deformation of the air-tight belt makes the gas in the air-tight box flow into the air-tight pipe and push the transmission pipe relative to the air-tight pipe to move the first rack upward. When the first rack contacts the first gear, the first gear rotates and drives the screw to rotate, so that the two adjusting plates move backward and separate the film on both sides of the film cut through the support rods, thereby providing space for subsequent operation. It should be noted that when the adjusting plate moves to the end of the screw and cannot move further, on the one hand, the maximum distance between the two adjusting plates can be maintained and determined, and the maximum tearing degree of the film by the two support rods is limited.

[0022] Further press the operating pipe, the operating pipe drives the platform, the support rod and the seedling cover to move downward, until the seedling cover covers the seedling and contacts the ridge soil. (In this process, the first gear will move below the first rack, but will not rotate in the opposite direction, so the support rod still keeps the film open.) Then, with both hands as the force point, pull the operating handle upward relative to the handle. The operating handle moves upward along the operating long hole and squeezes the wrinkled leather sleeve (the wrinkled leather sleeve always seals the operating long hole to prevent soil and ash from entering the operating pipe). At the same time, the operating handle drives the operating rod to move upward relative to the operating pipe, while compressing the return spring and driving the transmission bar upward. The transmission bar drives the second gear through the second rack, and the two second gears rotate the corresponding soil boards through the rotating shaft, until the bottom of the soil board contacts the ridge soil and pushes the ridge soil against the outside of the seedling cover. Then release the operating handle to make the return spring drive the operating rod and indirectly drive the soil board to reset. Finally, lift the platform to separate the seedling cover from the seedling. At this moment, the ridge soil originally attached to the outer wall of the seedling cover will collapse near the seedling and achieve soil cultivation.

[0023] Finally, release the air-tight belt to reset the air-tight belt under the action of the elastic force of the first spring. At the same time, the transmission pipe will also reset under the action of the internal gas pressure and its own weight. Thus, the first rack contacts the first gear again and makes the first gear rotate in the opposite direction, thereby driving the two adjusting plates to move in opposite directions so that the support rod no longer supports the film cut. Then move the platform upward again to make the support rod completely move out of the film, so that the same film cutting and soil cultivating operation can be performed on the next seedling.

[0024] The components of the present application can be made of plastic except for the components that are prone to friction loss such as the blade, rack, screw, gear, etc.

[0025] Compared with the prior art, the present application has the following advantages: the present application can simplify the existing manual film tearing and soil forming operation mode, improve work efficiency, greatly reduce labor intensity, has a simple overall structure and low cost, and is convenient for market promotion. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure diagram of the field tobacco plant film breaking and soil forming device according to the specific embodiment is shown.

[0027] Figure 2 The connection structure diagram of the adjusting plate, screw and transmission pipe according to the specific embodiment is shown.

[0028] Figure 3 The internal structure diagram of the operation pipe according to the specific embodiment is shown.

[0029] Figure 4 The structure diagram of the soil forming plate according to the specific embodiment is shown.

[0030] Figure 5 The internal structure diagram of the air-tight box according to the specific embodiment is shown. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0032] As shown in Figures 1-5 A field tobacco plant film breaking and soil forming device, the device comprises a platform 1 horizontally arranged and having a hollow structure 11, and an operation pipe 2 vertically penetrating and fixed on the platform 1, the bottom of the operation pipe 2 is concentrically fixed with a seedling cover 24, and the top of the operation pipe 2 is provided with a handle 21.

[0033] The operation pipe 2 is provided with an adjusting plate 5 having a T-shaped sliding block 53 fixed at the top on both sides, two sliding blocks 53 are provided with screw holes and penetrate the slide 12 formed on the bottom surface of the platform 1 and are in sliding cooperation with the slide 12, a screw 54 is rotatably arranged in the hollow structure of the platform 1, and the screw 54 is provided with thread segments 55 with opposite rotation directions at both ends, which are in cooperation with the screw holes in the two sliding blocks 53, the adjusting plate 5 is provided with a supporting rod 51 at the bottom, and the supporting rods 51 at the bottom ends of the two adjusting plates 5 are horizontally bent in opposite directions, and the free ends of the supporting rods 51 are provided with downwardly bent blades 52.

[0034] The platform 1 side is also provided with a transmission mechanism driving the screw 54, the transmission mechanism includes a transmission pipe 6 vertically penetrating through a pre-set through hole of the platform, the top of the transmission pipe 6 is closed by a limiting block 61 located above the platform and is provided with a first rack 62 at the middle length of the transmission pipe 6, the end of the screw 54 close to the transmission pipe 6 is coaxially provided with a first gear 56 used for engaging the first rack 62, the bottom of the transmission pipe 6 is airtightly connected with the top of an air-tight pipe 63, the bottom of the air-tight pipe 63 is communicated with an air-tight box 7, the top of the air-tight box 7 is provided with a notch airtightly closed by a silica gel air-tight band 71, the air-tight box 7 is provided with a horizontal partition plate 72, the top of the horizontal partition plate 72 is connected with the bottom surface of the air-tight band 71 through a first spring 74 and makes the air-tight band 71 present an outward convex structure, the horizontal partition plate 72 is provided with a gas hole 73 communicating the space composed of the horizontal partition plate 72 and the air-tight band 71 and the air-tight pipe 63, and the outer wall of the air-tight box 7 is connected with the wheel shaft of the roller 13 through a connecting rod.

[0035] When the air-tight band 71 is in the full state (i.e. the first spring 74 is in the non-deformation state), the horizontal height of the air-tight box 7 is lower than the bottom end of the supporting rod 51 and the first gear 56 is located above the first rack 62.

[0036] As shown in the drawings, Figure 3 , 4 The device also includes two soil cultivating plates 4 located between the two adjusting plates 5, the two soil cultivating plates 4 are curved plate-shaped and symmetrically distributed on both sides of the operating pipe 2, the top end plate body of the soil cultivating plate 4 is provided with a notch 41 clamping and matching the operating pipe, and the axial length of the soil cultivating plate 4 is greater than the axial length of the seedling cover 24.

[0037] The inside of the operating pipe 2 is fixedly provided with a limiting plate 32, the rod body of the operating rod 3 coaxially arranged inside the operating pipe 2 is fixedly provided with a positioning plate 33 below the limiting plate 32, and the rod body of the operating rod 3 between the positioning plate 33 and the limiting plate 32 is sleeved with a reset spring 34.

[0038] The bottom of the operating rod 3 is fixedly provided with a transmission bar 35, the two sides of the transmission bar 35 are respectively provided with a second rack 36, the two sides of the transmission bar 35 are respectively provided with a rotating shaft 42 rotationally connected with the operating pipe 2, the two ends of the rotating shaft 42 vertically penetrate to the outside of the operating pipe 2 and are fixedly connected with the inner arc side wall of the bottom end of the corresponding soil cultivating plate 4; the shaft rod of the rotating shaft 42 located in the operating pipe is fixedly provided with a second gear 43 engaged with the second rack 36.

[0039] The top of the operating pipe 2 is provided with a radially extending operating long hole 22, and the outside of the operating long hole 22 is sleeved with a wrinkle leather sleeve 23 with two ends fixedly connected with the outer wall of the operating pipe 2, and the operating handle 31 penetrating through the operating long hole 22 and the wrinkle leather sleeve 23 is vertically connected with the top of the operating rod 3.

[0040] The working process of the device is as follows:

[0041] When in use, the handle 21 is held by hand, and the invention is dragged along the side of the tobacco ridge by the roller 13. When it is moved to the target position, the platform 1 is lifted and kept horizontal, and then the platform 1 is shaken back and forth so that the blade 52 contacts the film and cuts the film above the tobacco seedlings (in this process, the transmission pipe 6 will move upward relative to the platform 1, but the first rack 62 has not yet contacted the first gear 56, because the tobacco ridge is basically at the same level, so the length of the transmission pipe 6 above the first rack 62 can be designed according to experience).

[0042] Then the platform 1 is kept horizontal and moved downward so that the blade 52 below the two adjusting plates 5 penetrates into the film cut, at this time the operator keeps balance with one foot and steps on the air-tight belt 71 with the other foot, so that the air-tight belt 71 deforms to overcome the elastic force of the first spring 74, and the deformation of the air-tight belt 71 causes the gas in the air-tight box 7 to flow into the air-tight pipe 63 and push the transmission pipe 6 to move upward relative to the air-tight pipe 63, thereby driving the first rack 62 to move upward, when the first rack 62 contacts the first gear 56, the first gear 56 drives the screw 54 to rotate, so that the two adjusting plates 5 move away and the film on both sides of the film cut is stretched apart by the support rods 51, thereby providing space for subsequent operation. It should be noted that when the adjusting plate 5 moves to the end of the screw 54, it cannot continue to move, on the one hand, it can keep and determine the maximum distance between the two adjusting plates 5 and limit the maximum tearing degree of the film by the two support rods 51.

[0043] Further press the operating pipe 2, the operating pipe 2 drives the platform 1, the support rod 51 and the seedling cover 24 to move downward, until the seedling cover 24 encloses the tobacco seedlings and contacts the ridge soil (in this process, the first gear 56 will move to below the first rack 62, but will not rotate in reverse, so the support rod 51 still keeps the film stretched apart). Then both hands take the handle 21 as the force point, pull the operating handle 31 upward relative to the handle 21, the operating handle 31 moves upward along the operating long hole and squeezes the wrinkled leather sleeve 23 (the wrinkled leather sleeve 23 always seals the operating long hole 22 to prevent soil and ash from entering the operating pipe 2), at the same time, the operating handle 31 drives the operating rod 3 to move upward relative to the operating pipe 2, while squeezing the return spring 34, it drives the transmission bar 35 to move upward, the transmission bar 35 drives the second gear 43 through the second rack 36, the two second gears 43 drive the corresponding soil cultivating plates 4 to rotate relative to the shaft 42, until the bottom of the soil cultivating plate 4 contacts the ridge soil and pushes the ridge soil to the outside of the seedling cover 24, then release the operating handle 31, so that the return spring 34 drives the operating rod 3 and indirectly drives the soil cultivating plate 4 to reset, finally, the platform 1 is lifted to separate the seedling cover 24 from the tobacco seedlings, at this moment, the ridge soil originally attached to the outer wall of the seedling cover 24 will collapse near the tobacco seedlings and achieve soil cultivation.

[0044] Finally loosen the air-tight band 71 makes the air-tight band 71 reset under the elastic force of the first spring 74, at the same time the transmission pipe 6 also resets under the action of internal air pressure and gravity, so that the first rack 62 contacts the first gear 56 again and makes the first gear 56 rotate reversely, in turn drives the two adjusting plates 5 to move oppositely so that the support rod 51 no longer supports the mulch cutout, then the platform 2 is moved upward again so that the support rod 51 completely moves out of the mulch and the next tobacco seedling can be operated in the same way.

[0045] In the components involved in the present application, in addition to the components such as blade, rack, screw rod, gear and the like which are prone to friction loss can adopt metal material, other components can be formed by plastic and assembled, so as to reduce the overall weight. At the same time, the length of the operation pipe can be designed to be larger, so that the user does not need to bend over to operate. The cooperation between the transmission pipe and the air-tight rod can adopt the air-tight gasket which is fixed on the outer wall of the top end of the air-tight rod and is tightly attached to the inner wall of the bottom end of the transmission pipe.

Claims

1. A field tobacco plant film breaking and soil mounding device, characterized in that, The device includes a horizontally arranged, hollow platform and an operating tube that is vertically inserted and fixed on the platform. The bottom of the operating tube is concentrically fixed with a seedling cover and the top is provided with a handle. The operating tube has adjustment plates with T-shaped sliders fixed on the top on both sides. The two sliders pass through the slides opened on the bottom surface of the platform and have screw holes. The platform has a screw that rotates inside, and the screws with opposite threads at both ends are respectively engaged with the screw holes of the two sliders. The bottom of the adjustment plate has a support rod, and the bottom ends of the support rods of the two adjustment plates are bent horizontally in opposite directions. The free end of the support rod has a downward bent blade. The platform is also equipped with a transmission mechanism for screw drive on one side: The transmission mechanism includes a transmission tube that vertically penetrates a pre-set through hole in the platform. The top of the transmission tube is closed and a first rack is provided at the middle of its length. A first gear for meshing with the first rack is coaxially fixed at one end of the screw near the transmission tube. The transmission mechanism also includes an airtight pipe located below the transmission pipe. The top of the airtight pipe is airtightly connected to the bottom of the transmission pipe, and the bottom of the airtight pipe is connected to the airtight box. The top of the airtight box has a notch sealed by a silicone airtight tape. The outer wall of the airtight box is connected to the wheel axle of the roller via a connecting rod. The airtight box is equipped with a horizontal partition, and the top of the horizontal partition is connected to an airtight belt by a first spring. The horizontal partition has an air hole that connects the space above the horizontal partition and the airtight pipe. The device includes two soil-building plates located between two adjusting plates. The two soil-building plates are curved and symmetrically distributed on both sides of the operating tube. A notch for engaging the operating tube is opened on the top plate of the soil-building plate. The axial length of the soil-building plate is greater than the axial length of the seedling cover. An operating rod is coaxially arranged inside the operating tube, and a transmission bar is fixedly arranged at the bottom of the operating rod. Both sides of the operating lever are equipped with rotating shafts that are rotatably connected to the operating tube. The two ends of the rotating shafts extend vertically to the outside of the operating tube and are fixedly connected to the inner arc sidewall of the bottom end of the corresponding soil-laying plate. The rotating shaft is fixed on the shaft inside the operating tube with a second gear, and the transmission bar has a second rack on each side that meshes with the corresponding second gear.

2. The field tobacco plant film breaking and soil-building device as described in claim 1, characterized in that, A limiting block is provided at the top of the transmission tube.

3. The field tobacco plant film breaking and soil mounding device as described in claim 1, characterized in that, When the airtight belt is in a fully inflated state, the horizontal height of the airtight box is lower than the bottom of the support rod and the first gear is located above the first rack.

4. The field tobacco plant film breaking and soil mounding device as described in claim 1, characterized in that, The top of the operating tube has a radially extending operating hole, and the operating hole is covered with a pleated leather sleeve at both ends, which is fixedly connected to the outer wall of the operating tube. The operating handle, which passes through the operating hole and the pleated leather sleeve, is vertically connected to the top of the operating rod.

5. The field tobacco plant film breaking and soil mounding device as described in claim 1, characterized in that, A limiting plate is also fixed inside the operating tube, and a positioning plate is fixed to the operating rod body below the limiting plate. A reset spring is sleeved on the operating rod body between the positioning plate and the limiting plate.

Images