Handheld seedling pulling and ridging device

Abstract

The utility model relates to the technical field of tobacco planting, in particular to a handheld seedling pulling and ridging device which comprises a platform which is horizontally arranged and is of a hollow structure and an operation pipe which vertically penetrates through the platform and is fixedly arranged on the platform, a seedling sleeving cover is concentrically and fixedly arranged at the bottom of the operation pipe, and a handle is arranged at the top of the operation pipe. Adjusting plates with the tops fixedly provided with T-shaped sliding blocks are arranged on the two sides of the operation pipe, the two sliding blocks penetrate through sliding ways formed in the bottom face of the platform and are provided with screw holes, a screw rod is rotationally arranged in the platform, threaded sections, opposite in rotating direction, of the two ends of the screw rod are matched with the screw holes of the two sliding blocks correspondingly, and supporting rods are arranged at the bottoms of the adjusting plates; the bottom ends of the supporting rods of the two adjusting plates are horizontally bent in the opposite direction, and the free ends of the supporting rods are provided with cutting edges bent downwards. And one side of the platform is also provided with a transmission mechanism for driving the screw rod. The film tearing and ridging machine can simplify existing manual film tearing and ridging operation modes, greatly reduces labor intensity while improving working efficiency, and is simple in overall structure, low in cost and convenient to popularize in the market.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco planting, in particular to a handheld seedling digging and soiling device. Background Art

[0002] Since the transplanting period of tobacco seedlings is in the spring when the temperature difference between day and night is large, it is necessary to lay ground film to insulate and protect the tobacco seedlings after the tobacco seedlings are transplanted in the field. However, as the tobacco seedlings grow and the ambient temperature rises, the ground film needs to be torn and the first soil-building operation needs to be carried out. The ground film is torn instead of completely removed. On the one hand, it provides space for the tobacco seedlings to grow upward and prevents the ambient temperature under the film from being too high during the day, causing the tobacco seedlings to die. On the other hand, the ground film can also provide a certain insulation effect for the tobacco seedlings at low temperatures at night. Small soil-building is to gather the ridges near the tobacco seedlings near the tobacco seedlings, which is conducive to improving the root growth and development of the tobacco seedlings. This operation of the prior art basically relies on manual operation. Tobacco farmers repeatedly bend over to tear the film and gather the soil. Although the action is simple, it causes great strain on the waist. Utility Model Content

[0003] The purpose of the utility model is to provide a handheld seedling digging and soiling device, which can simplify the existing manual film tearing and soiling operation methods, improve work efficiency and greatly reduce labor intensity. At the same time, the overall structure is simple and the cost is low, which is convenient for market promotion.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A handheld seedling digging and soiling device, the device comprises a horizontally arranged and hollow platform and an operating tube vertically penetrating and fixed on the platform, a seedling cover is concentrically fixed at the bottom of the operating tube and a handle is provided at the top;

[0006] Adjustment plates with T-shaped sliders fixed on the top are provided on both sides of the operating tube, the two sliders penetrate the slideway opened on the bottom surface of the platform and are provided with screw holes, a screw is rotatably provided inside the platform, and the threaded sections at both ends of the screw are rotated in opposite directions and respectively cooperate with the screw holes of the two sliders, a support rod is provided at the bottom of the adjustment plate, and the bottom ends of the support rods of the two adjustment plates are bent horizontally in opposite directions, and a downwardly bent blade is provided at the free end of the support rod;

[0007] A transmission mechanism for driving the screw is also provided on one side of the platform.

[0008] Preferably, the transmission mechanism includes a transmission tube vertically passing through a preset through hole of the platform, the top of the transmission tube is closed and a first rack is provided at the middle of its length, and a first gear for engaging with the first rack is coaxially provided at one end of the screw rod close to the transmission tube.

[0009] Preferably, the transmission mechanism also includes an airtight tube arranged below the transmission tube, the top of the airtight tube is airtightly connected to the bottom of the transmission tube, the bottom of the airtight tube is connected to an airtight box, a notch sealed by a silicone airtight tape is provided on the top of the airtight box, and the outer wall of the airtight box is connected to the axle of the roller through a connecting rod.

[0010] Preferably, a horizontal partition is provided in the airtight box, the top of the horizontal partition is connected to the airtight belt via a first spring, and an air hole connecting the space above the horizontal partition and the airtight tube is opened on the horizontal partition.

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

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

[0013] Preferably, the device includes two soil-raising plates located between the two adjustment plates, the two soil-raising plates are in the shape of curved plates and are symmetrically distributed on both sides of the operating tube, a notch for fitting the operating tube is provided on the top plate body of the soil-raising plate, and the axial length of the soil-raising plate is greater than the axial length of the seedling cover.

[0014] Preferably, an operating rod is coaxially arranged inside the operating tube, and a transmission bar is fixedly arranged at the bottom of the operating rod;

[0015] Both sides of the operating rod are provided with a rotating shaft rotatably connected to the operating pipe, and both ends of the rotating shaft vertically penetrate the outside of the operating pipe and are fixedly connected to the inner arc side wall of the bottom end of the corresponding soil-raising plate;

[0016] A second gear is fixedly arranged on the shaft rod of the rotating shaft located in the operating tube, and second racks meshing with the corresponding second gear are respectively arranged on both sides of the transmission bar.

[0017] Preferably, a radially extending long operating hole is opened on the top of the operating tube, and the outer cover of the long operating hole is provided with a pleated leather cover with two ends respectively fixedly connected to the outer wall of the operating tube, and an operating handle passing through the long operating hole and the pleated leather cover is vertically connected to the top of the operating rod.

[0018] Preferably, a limit plate is fixedly provided in the operating tube, a positioning plate is fixedly provided on the operating rod body below the limit plate, and a return spring is sleeved on the operating rod body between the positioning plate and the limit plate.

[0019] The working process of this utility model is as follows:

[0020] When in use, hold the handle and use the roller to drag the utility model along one side of the tobacco ridge. When it moves to the target position, lift the platform and keep it level, then shake the platform back and forth so that the blade contacts the ground film and cuts the film above the tobacco seedlings (in this process, the transmission tube will move up relative to the platform, but the first rack has not yet contacted the first gear. Because the tobacco ridge is basically at elevation, the length of the transmission tube above the first rack can be reserved and designed according to experience).

[0021] Then keep the platform horizontal and move downward so that the blades under the two adjustment plates can penetrate into the cut of the ground film. At this time, the operator keeps balance with one foot and steps on the airtight belt with the other foot so that the airtight belt overcomes the elastic force of the first spring and deforms. The deformation of the airtight belt causes the gas in the airtight box to flow into the airtight tube and push the transmission tube relative to the airtight tube to drive the first rack to move upward. When the first rack contacts the first gear, the first gear rotates and drives the screw to rotate. In this way, the two adjustment plates move back to back and open the film bodies on both sides of the cut of the ground film through the support rod, thereby providing space for subsequent operations. It should be noted that when the adjustment plate moves to the end of the screw and cannot continue to move, on the one hand, the maximum spacing between the two adjustment plates can be maintained and determined and the maximum tearing degree of the ground film by the two support rods can be limited.

[0022] Further press down the operating tube, the operating tube drives the platform, the support rod and the seedling cover to move down until the seedling cover covers the tobacco seedlings 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 maintains the open state of the ground film). Then use the handle as the force point with both hands, pull the operating handle relative to the handle, the operating handle moves up along the operating long hole and squeezes the pleated leather cover (the pleated leather cover always seals the operating long hole to prevent soil and ash from entering the operating tube), and at the same time, the operating handle drives the operating rod to move up relative to the operating tube, and drives the transmission bar to move up while squeezing the reset spring. The transmission bar rotates the second gear meshed with it through the second rack, and the two second gears drive the corresponding soil-raising plates to rotate relative to each other through the rotating shaft until the bottom of the soil-raising plate contacts the ridge soil and pushes the ridge soil against the outside of the seedling cover, then release the operating handle so that the reset spring drives the operating rod and indirectly drives the soil-raising plate to reset, and finally lift the platform until the seedling cover is separated from the tobacco seedlings. At this moment, the ridge soil originally attached to the outer wall of the seedling cover will collapse near the tobacco seedlings and achieve soil-raising.

[0023] Finally, the air-tight belt is loosened so that it can be reset under the elastic force of the first spring. At the same time, the transmission tube will also be reset under the action of the internal air pressure and its own weight. In this way, the first rack contacts the first gear again and causes the first gear to rotate in the opposite direction, thereby driving the two adjustment plates to move toward each other so that the support rod no longer supports the incision of the ground film. Then, the platform is moved up again so that the support rod is completely moved out of the ground film, and the same film cutting and soil raising operation can be carried out on the next tobacco seedling.

[0024] Among the components involved in the utility model, except for the blade, rack, screw, gear and other components that are prone to friction loss, which can be made of metal, the others can be formed and assembled with plastic to reduce the overall weight. At the same time, the length of the operating tube can be designed to be larger, so that the user does not need to bend over to operate.

[0025] Compared with the prior art, the utility model has the following advantages: the utility model can simplify the existing manual film tearing and soiling operation methods, improve work efficiency and greatly reduce labor intensity, and at the same time, the overall structure is simple and the cost is low, which is convenient for market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the handheld seedling digging and soiling device described in a specific implementation method;

[0027] Figure 2 This is a schematic diagram of the connection structure of the adjustment plate, the screw rod and the transmission tube according to the specific implementation method;

[0028] Figure 3 This is a schematic diagram of the internal structure of the operating tube according to the specific implementation method;

[0029] Figure 4 It is a structural schematic diagram of the soil-raising plate described in the specific implementation method;

[0030] Figure 5 It is a schematic diagram of the internal structure of the airtight box described in the specific implementation method. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1-5 As shown, a handheld seedling digging and soiling device comprises a horizontally arranged platform 1 with a hollow structure 11 and an operating tube 2 vertically penetrating and fixed on the platform 1, a seedling cover 24 is concentrically fixed at the bottom of the operating tube 2, and a handle 21 is provided at the top;

[0033] The operating tube 2 is provided with an adjustment plate 5 with a T-shaped slider 53 fixed on the top on both sides. The two sliders 53 are provided with screw holes and penetrate the slideway 12 provided on the bottom surface of the platform 1 and slide with it. A screw rod 54 is rotatably provided in the hollow structure of the platform 1, and the threaded sections 55 at both ends of the screw rod 54 are rotated in opposite directions and respectively cooperate with the screw holes on the two sliders 53. A support rod 5 is provided at the bottom of the adjustment plate 5, and the bottom ends of the support rods 51 of the two adjustment plates 5 are bent horizontally in opposite directions, and the free ends of the support rods 51 are provided with a downwardly bent blade 52;

[0034] A transmission mechanism for driving the screw 54 is also provided on one side of the platform 1, and the transmission mechanism includes a transmission tube 6 which vertically passes through a preset through hole of the platform, the top of the transmission tube 6 is closed by a limit block 61 located above the platform, and a first rack 62 is provided at the middle of its length, and a first gear 56 for engaging with the first rack 62 is coaxially provided at the end of the screw 54 near the transmission tube 6, the bottom of the transmission tube 6 is airtightly connected to the top of the airtight tube 63, and the bottom of the airtight tube 63 is connected to the airtight box 7, and a notch is provided at the top of the airtight box 7 which is airtightly closed by a silicone airtight tape 71, and a horizontal partition 72 is provided in the airtight box 7, and the top of the horizontal partition 72 is connected to the bottom surface of the airtight tape 71 by a first spring 74 so that the airtight tape 71 is convex, and the horizontal partition 72 is provided with an air hole 73 which connects the space composed of the horizontal partition 72 and the airtight tape 71 and the airtight tube 63, and the outer wall of the airtight box 7 is connected to the axle of the roller 13 through a connecting rod.

[0035] When the airtight belt 71 is in a filled state (ie, the first spring 74 is in a non-deformed state), the horizontal height of the airtight box 7 is lower than the bottom end of the support rod 51 and the first gear 56 is located above the first rack 62 .

[0036] like Figure 3 , 4 As shown, the device also includes two soil-raising plates 4 located between the two adjustment plates 5. The two soil-raising plates 4 are in the shape of curved plates and are symmetrically distributed on both sides of the operating tube 2. A notch 41 for fitting the operating tube is provided on the top plate body of the soil-raising plate 4. The axial length of the soil-raising plate 4 is greater than the axial length of the seedling cover 24.

[0037] A limit plate 32 is fixedly disposed inside the operating tube 2 , and a positioning plate 33 is fixedly disposed on the rod body of the operating rod 3 coaxially arranged inside the operating tube 2 below the limit plate 32 . A return spring 34 is sleeved on the rod body of the operating rod 3 between the positioning plate 33 and the limit plate 32 .

[0038] A transmission bar 35 is fixedly provided at the bottom of the operating rod 3, and second racks 36 are respectively provided on both sides of the transmission bar 35. A rotating shaft 42 rotatably connected to the operating tube 2 is provided on both sides of the transmission bar 35. Both ends of the rotating shaft 42 vertically penetrate to the outside of the operating tube 2 and are fixedly connected to the inner arc side wall of the bottom end of the corresponding soil-raising plate 4; a second gear 43 meshing with the second rack 36 is fixedly provided on the shaft of the rotating shaft 42 located in the operating tube.

[0039] A radially extending long operating hole 22 is opened on the top of the operating tube 2, and the outside of the long operating hole 22 is covered with a pleated leather cover 23 with two ends respectively fixedly connected to the outer wall of the operating tube 2, and an operating handle 31 that passes through the long operating hole 22 and the pleated leather cover 23 is vertically connected to the top of the operating rod 3.

[0040] The working process of this utility model is as follows:

[0041] When in use, hold the handle 21 and use the roller 13 to drag the utility model along one side of the tobacco ridge. When it moves to the target position, lift the platform 1 and keep it horizontal, then shake the platform 1 back and forth so that the blade 52 contacts the ground film and cuts the film above the tobacco seedlings (in this process, the transmission tube 6 will move up 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 elevation, the length of the transmission tube 6 above the first rack 62 can be reserved and designed according to experience).

[0042] Then, the platform 1 is kept horizontally moved downward so that the blades 52 under the two adjustment plates 5 are inserted into the cut of the ground film. At this time, the operator keeps balance with one foot and steps on the airtight belt 71 with the other foot so that the airtight belt 71 overcomes the elastic force of the first spring 74 and deforms. The deformation of the airtight belt 71 causes the gas in the airtight box 7 to flow into the airtight tube 63 and push the transmission tube 6 to move upward relative to the airtight tube 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 adjustment plates 5 move in reverse and open the two sides of the cut of the ground film through the support rod 51, thereby providing space for subsequent operations. It should be noted that when the adjustment plate 5 moves to the end of the screw rod 54 and cannot continue to move, on the one hand, the maximum spacing between the two adjustment plates 5 can be maintained and determined and the maximum tearing degree of the ground film by the two support rods 51 can be limited.

[0043] The operating tube 2 is further pressed downward, and the operating tube 2 drives the platform 1, the support rod 51 and the seedling cover 24 to move downward until the seedling cover 24 covers the tobacco seedlings and contacts the ridge soil (in this process, the first gear 56 will move below the first rack 62 but will not rotate in the opposite direction, so the support rod 51 still maintains the open state of the ground film). The handle 21 is then used as the force point by both hands to pull the operating handle 31 relative to the handle 21. The operating handle 31 moves up along the operating long hole and squeezes the pleated leather cover 23 (the pleated leather cover 23 always seals the operating long hole 22 to prevent soil and ash from entering the operating tube 2). At the same time, the operating handle 31 drives the operating rod 3 to move upward relative to the operating tube 2, and drives the transmission bar 35 to move upward while squeezing the reset spring 34. The transmission bar 35 rotates the second gear 43 meshing with it through the second rack 36. The two second gears 43 drive the corresponding soil-raising plates 4 to rotate relative to each other through the rotating shaft 42 until the bottom of the soil-raising plates 4 contacts the ridge soil and pushes the ridge soil against the outside of the seedling cover 24. Then, the operating handle 31 is released so that the reset spring 34 drives the operating rod 3 and indirectly drives the soil-raising plates 4 to reset. Finally, the platform 1 is lifted until the seedling cover 24 is separated 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-raising.

[0044] Finally, the airtight belt 71 is loosened so that it can be reset under the elastic force of the first spring 74. At the same time, the transmission tube 6 will also be reset under the internal air pressure and its own weight. In this way, the first rack 62 contacts the first gear 56 again and causes the first gear 56 to rotate in the opposite direction, thereby driving the two adjustment plates 5 to move in opposite directions so that the support rod 51 no longer supports the incision of the ground film. Then, the platform 2 is moved up again so that the support rod 51 is completely moved out of the ground film, and the same film cutting and soil raising operation can be performed on the next tobacco seedling.

[0045] Among the components involved in the utility model, except for the blades, racks, screws, gears and other components that are prone to friction loss, which can be made of metal materials, all other components can be formed and assembled with plastics to reduce the overall weight. At the same time, the length of the operating tube can be designed to be larger, so that the user does not need to bend over to operate, and the transmission tube and the airtight rod can be matched by an airtight gasket fixed on the outer wall of the top of the airtight rod to fit the inner wall of the bottom end of the transmission tube.

Claims

1. A handheld seedling digging and soiling device, characterized in that: The device comprises a horizontally arranged hollow platform and an operating tube vertically penetrating and fixed on the platform, wherein a seedling cover is concentrically fixed on the bottom of the operating tube and a handle is provided on the top; Adjustment plates with T-shaped sliders fixed on the top are provided on both sides of the operating tube, the two sliders penetrate the slideway opened on the bottom surface of the platform and are provided with screw holes, a screw is rotatably provided inside the platform, and the threaded sections at both ends of the screw are rotated in opposite directions and respectively cooperate with the screw holes of the two sliders, a support rod is provided at the bottom of the adjustment plate, and the bottom ends of the support rods of the two adjustment plates are bent horizontally in opposite directions, and a downwardly bent blade is provided at the free end of the support rod; A transmission mechanism for driving the screw is also provided on one side of the platform.

2. The handheld seedling digging and soiling device according to claim 1, characterized in that: The transmission mechanism includes a transmission tube that vertically penetrates a preset through hole of the platform. The top of the transmission tube is closed and a first rack is provided at the middle of its length. The end of the screw rod close to the transmission tube is coaxially fixed with a first gear for engaging with the first rack.

3. The handheld seedling digging and soiling device according to claim 2, characterized in that: The transmission mechanism also includes an airtight tube arranged below the transmission tube, the top of the airtight tube is airtightly connected to the bottom of the transmission tube, the bottom of the airtight tube is connected to an airtight box, a notch is provided on the top of the airtight box and is sealed by a silicone airtight tape, and the outer wall of the airtight box is connected to the axle of the roller through a connecting rod.

4. The handheld seedling digging and soiling device according to claim 3, characterized in that: A horizontal partition is arranged in the airtight box, the top of the horizontal partition is connected to the airtight belt via a first spring, and an air hole is opened on the horizontal partition to connect the space above the horizontal partition and the airtight pipe.

5. The handheld seedling digging and soiling device according to claim 2, characterized in that: A limiting block is arranged at the top end of the transmission pipe.

6. The handheld seedling digging and soil-raising device according to claim 4, characterized in that: When the airtight belt is in a filled state, the horizontal height of the airtight box is lower than the bottom end of the support rod and the first gear is located above the first rack.

7. The handheld seedling digging and soiling device according to claim 1, characterized in that: The device includes two soil-raising plates located between two adjustment plates. The two soil-raising plates are in the shape of curved plates and are symmetrically distributed on both sides of the operating tube. A notch for fitting the operating tube is provided on the top plate body of the soil-raising plate. The axial length of the soil-raising plate is greater than the axial length of the seedling cover.

8. The handheld seedling digging and soiling device according to claim 7, characterized in that: 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 rod are provided with a rotating shaft rotatably connected to the operating pipe, and both ends of the rotating shaft vertically penetrate the outside of the operating pipe and are fixedly connected to the inner arc side wall of the bottom end of the corresponding soil-raising plate; A second gear is fixedly arranged on the shaft rod of the rotating shaft located in the operating tube, and second racks meshing with the corresponding second gear are respectively arranged on both sides of the transmission bar.

9. The handheld seedling digging and soiling device according to claim 8, characterized in that: The top of the operating tube is provided with a radially extending operating long hole, and the outer cover of the operating long hole is provided with a pleated leather cover at both ends respectively fixedly connected to the outer wall of the operating tube, and an operating handle passing through the operating long hole and the pleated leather cover is vertically connected to the top of the operating rod.

10. The handheld seedling digging and soiling device according to claim 8, characterized in that: A limit plate is fixedly arranged in the operating tube, a positioning plate is fixedly arranged on the operating rod body below the limit plate, and a return spring is sleeved on the operating rod body between the positioning plate and the limit plate.

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