Mountain hilly tobacco field transplanting and film covering integrated machine

Abstract

The present application relates to tobacco field transplanting and mulching technical field, especially to a mountainous tobacco field transplanting and mulching integrated machine, which comprises an integrated machine body and a transplanting device arranged on the integrated machine body, the transplanting device comprises a rotating disc, an opening and closing piece and a transplanting cylinder, wherein the bottom of the transplanting cylinder is provided with a movable plate, the transplanting cylinder is connected with the rotating disc through a connecting shaft, a vertical sliding assembly is arranged between the transplanting cylinder and the connecting shaft, so that the transplanting cylinder can vertically lift relative to the connecting shaft; a fertilizing assembly is arranged on the middle shaft of the rotating disc, when the transplanting cylinder is lifted to a predetermined height, the fertilizer in the fertilizing assembly can cover the root of the tobacco seedling. The present application can effectively improve the survival rate of the tobacco seedling after transplanting, and can effectively avoid the side overturning and dumping of the transplanting and mulching integrated machine, and improve the safety of the transplanting and mulching integrated machine during operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco field transplanting and mulching, in particular to a mountain and hilly tobacco field transplanting and mulching integrated machine. BACKGROUND

[0002] At present, although there is a transplanting and mulching integrated machine that can realize the transplanting and mulching of tobacco seedlings, the use of the integrated machine in mountain and hilly landform environment still has the problem of low survival rate of tobacco seedlings. For example, a Chinese invention patent with the publication number CN111972097B discloses a film transplanting machine for transplanting seedlings cultivated through seedling hole discs, which comprises a rack, a film mulching device, an automatic seedling separating device and a transplanting device. The rack is movable in the front-rear direction. The film mulching device is arranged on the rack and is used for ridging and film mulching. The automatic seedling separating device is arranged on the rack and is used for separating the seedling hole disc into single seedling grids. The transplanting device is arranged on the rack and is used for inserting the separated seedling grids into the mulched ridges. After the soil is ditched and mulched by the film mulching device, the seedlings are planted in the soil by the transplanting device penetrating the film, realizing automatic ditching, mulching and planting. In order to save manual labor, the automatic seedling separating device arranged above the transplanting device separates the seedling hole disc into single seedling grids and delivers them to the transplanting device, realizing automatic seedling planting, improving transplanting efficiency and reducing labor intensity.

[0003] In the above-mentioned patent, there is the problem of low survival rate of tobacco seedlings, and the specific reasons are as follows: due to the uneven thickness of soft soil in mountain and hilly landform environment, that is, the distance between the surface of soft soil and the hard layer at the bottom of soft soil is different at different positions. When the "fixed transplanting cylinder 4322" in the above-mentioned technical solution is inserted into the soft soil, if the thickness of soft soil is shallow, the "fixed transplanting cylinder 4322" cannot continue to penetrate after pressing against the surface of the hard layer at the bottom of soft soil, that is, the tobacco seedlings cannot be placed and planted in the deep part of soft soil, or the tobacco seedlings cannot be planted at the predetermined depth position in the soft soil. As a result, the roots of tobacco seedlings are easily exposed, and the tobacco seedlings cannot absorb sufficient nutrients, which leads to the tobacco seedlings being placed in the shallow part of soil by the "fixed transplanting cylinder 4322", and then leads to low survival rate of tobacco seedlings.

[0004] Therefore, a mountain and hilly tobacco field transplanting and mulching integrated machine is proposed. SUMMARY

[0005] The purpose of the present application is to provide a mountain and hilly tobacco field transplanting and mulching integrated machine to solve the problems raised in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A mountain hilly tobacco field transplanting and film covering integrated machine, comprising an integrated machine body and a transplanting device arranged on the integrated machine body, wherein the transplanting device comprises a rotating disc, an opening and closing piece and a transplanting cylinder, the bottom of the transplanting cylinder is provided with a movable plate, the transplanting cylinder is connected with the rotating disc through a connecting shaft, and a vertical sliding assembly is arranged between the transplanting cylinder and the connecting shaft, so that the transplanting cylinder can vertically ascend and descend relative to the connecting shaft.

[0007] A fertilizing assembly is arranged on the middle shaft of the rotating disc, and when the transplanting cylinder ascends to a predetermined height, the fertilizer in the fertilizing assembly can cover the roots of the tobacco seedlings.

[0008] Preferably, the vertical sliding assembly comprises a sleeve which is sleeved on the outside of the transplanting cylinder, and the sleeve is fixedly connected with the connecting shaft.

[0009] The fertilizing assembly comprises a storage tank for storing fertilizers and a discharge pipe which is fixedly connected with the bottom of the storage tank, and a valve is arranged on the discharge pipe, and when the transplanting cylinder ascends to a predetermined height, the valve is pushed open by the transplanting cylinder.

[0010] Preferably, a side surface of the sleeve is provided with an avoiding opening, and a roller is rotatably connected to the bottom end of the sleeve adjacent to the avoiding opening.

[0011] Both ends of the movable plate protrude from both sides of the transplanting cylinder and are formed with protruding portions, and the roller is located above the protruding portions, and when the transplanting cylinder ascends, the roller guides the protruding portions to move into the avoiding opening.

[0012] Preferably, the valve comprises a valve plate fixedly arranged on the bottom of the discharge pipe, a leakage opening formed between the bottom end of the discharge pipe and the valve plate, and an opening and closing sleeve sleeved on the discharge pipe and capable of sliding up and down, the opening and closing sleeve blocks the leakage opening when being in a low position, and when the transplanting cylinder ascends, the opening and closing sleeve is pushed upward by the lug to expose the leakage opening.

[0013] Preferably, the upper surface of the valve plate is a quadrangular pyramid surface or a quadrangular platform surface.

[0014] Preferably, the discharge pipe is fixedly connected with the valve plate through a guide rod and a connecting piece, the guide rod is vertically arranged, and the connecting piece is horizontally arranged.

[0015] Preferably, a second spring is arranged between the discharge pipe and the lug.

[0016] Preferably, the guide rod slides through the lug, the second spring is sleeved on the guide rod, and the bottom end of the second spring abuts against the lug.

[0017] Preferably, the inner surface of the sleeve is fixed with a sliding rod, the side surface of the transplanting cylinder is fixed with a sliding block in sliding connection with the sliding rod, and a first spring is sleeved on the sliding rod and abuts against the sliding block at the bottom end.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The vertical sliding assembly and the fertilizing assembly are arranged, on the one hand, the vertical sliding assembly enables the transplanting cylinder to vertically ascend and descend relative to the connecting shaft, and then the fertilizing assembly is opened by utilizing the characteristic that the transplanting cylinder will ascend when touching the hard layer at the bottom of the soft soil, so that the fertilizing material stored in the fertilizing assembly can enter the inside of the transplanting cylinder first, and then the fertilizing material is discharged from the transplanting cylinder together with the tobacco seedlings, so that the roots of the tobacco seedlings can be covered by the fertilizing material in the case that the soft soil is thin, the roots of the tobacco seedlings are prevented from being exposed, sufficient nutrient substances are provided for the tobacco seedlings, and the survival rate of the tobacco seedlings after transplanting is improved; and, on the other hand, the structure design that the transplanting cylinder can vertically ascend and descend prevents the transplanting and mulching integrated machine from being lifted up by the whole transplanting cylinder when touching the hard layer, effectively avoids the side overturning and dumping of the transplanting and mulching integrated machine, and improves the safety of the transplanting and mulching integrated machine during operation.

[0020] Further, the opening and closing sleeve is arranged to block the material leakage hole, and then the two lugs are arranged to enable the opening and closing sleeve to be directly lifted up to open the material leakage hole when the transplanting cylinder ascends, so that the fertilizing material is discharged into the inside of the transplanting cylinder, that is, the opening of the valve does not need to be provided with another driving structure, the actual cost is reduced, the opening time of the valve can be accurately controlled because the opening of the valve is controlled by the transplanting cylinder, the situation that the valve cannot be opened in the case that the soft soil is thin does not exist, the sensitivity of the valve is high, the stability is good, and because the upper surface of the valve plate is a four-pyramid surface or a four-prism surface, the fertilizing material can fall along the inner edge of the transplanting cylinder to the inner bottom of the transplanting cylinder, that is, the coverage of the roots of the tobacco seedlings can be realized, the tobacco seedling leaves, stems or petioles can be prevented from being injured by the falling fertilizing material, and the survival rate of the tobacco seedlings after transplanting is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the present application;

[0022] Figure 2 It is a whole front view structure schematic view of the present application;

[0023] Figure 3 It is a structure schematic view of the vertical sliding assembly of the present application;

[0024] Figure 4 It is a position schematic view of the avoiding opening on the sleeve of the present application;

[0025] Figure 5It is a sectional perspective structural schematic view of the sleeve of the present application.

[0026] Figure 6 It is a structural schematic view of the sleeve of the present application.

[0027] Figure 7 It is a structural schematic view of the sleeve of the present application. Figure 6

[0028] Figure 8 It is a sectional perspective structural schematic view of the sleeve of the present application.

[0029] Figure 9 It is a structural schematic view of the fertilizer applying assembly of the present application.

[0030] Figure 10 It is a structural schematic view of the discharge pipe of the present application.

[0031] Figure 11 It is a structural schematic view of the discharge pipe of the present application. Figure 1

[0032] Figure 12 It is a sectional perspective structural schematic view of the sleeve of the present application.

[0033] In the figure:

[0034] 1, rotating disc; 11, intermediate shaft;

[0035] 2, opening and closing member;

[0036] 3, transplanting cylinder; 31, movable plate; 311, protruding part; 32, connecting shaft;

[0037] 4, vertical sliding assembly; 41, sleeve; 411, avoiding opening; 42, sliding rod; 43, sliding block; 44, first spring; 45, roller;

[0038] 5, fertilizer applying assembly; 51, storage box; 52, discharge pipe; 53, valve; 531, valve plate; 532, leakage opening; 533, opening and closing sleeve; 534, lug; 535, guide rod; 536, second spring; 537, connecting plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0040] Please refer to Figures 1-12 The present application provides a technical solution:​​

[0041] A type of integrated transplanting and mulching machine for tobacco fields in mountainous and hilly areas, such as Figures 1 to 2 As shown, the device includes an integrated machine body and a transplanting device mounted on the integrated machine body. The integrated machine body has the functions of covering and transplanting. The transplanting device includes a rotating disk 1, an opening and closing part 2, and a transplanting cylinder 3. The bottom of the transplanting cylinder 3 is provided with a movable plate 31. The transplanting cylinder 3 is connected to the rotating disk 1 through a connecting shaft 32. Specifically, the rotating disk 1 can drive the transplanting cylinder 3 to rotate together. During the rotation, the transplanting cylinder 3 will always remain vertically downward, so that when the transplanting cylinder 3 rotates to the lowest position, its bottom end can be inserted into the soil. Then, the movable plate 31, in conjunction with the curved slide rail on the opening and closing part 2, opens. During the opening process, the movable plate 31 pushes aside the surrounding soil to form a pit for transplanting tobacco seedlings. Moreover, after the movable plate 31 is opened (the opening and closing of the movable plate 31 is existing technology), the tobacco seedlings inside slide into the pit, thereby completing the transplanting of tobacco seedlings.

[0042] The above are all existing technologies and will not be elaborated upon here. The following describes the differences between this all-in-one machine and existing technologies.

[0043] like Figures 1 to 3 As shown, a vertical sliding component 4 is provided between the transplanting cylinder 3 and the connecting shaft 32, allowing the transplanting cylinder 3 to rise and fall vertically relative to the connecting shaft 32. Specifically, when the thickness of the soft soil is small during the insertion of the transplanting cylinder 3 into the soil, the presence of the vertical sliding component 4 allows the transplanting cylinder 3 to gradually rise when it touches the hard layer at the bottom of the soft soil. Then, since a fertilization component 5 is provided on the intermediate shaft 11 of the rotating disk 1 of this invention, when the transplanting cylinder 3 rises to the predetermined height, the fertilizer in the fertilization component 5 can cover the roots of the tobacco seedlings. This allows the roots of the tobacco seedlings to be covered with fertilizer even when the soft soil is thin, preventing the roots from being exposed and providing sufficient nutrients to the tobacco seedlings, thereby improving the survival rate of the transplanted tobacco seedlings.

[0044] Further, since in the mountainous and hilly landform environment, the tobacco field may exist in the inclined condition, specifically, the tobacco field is surrounded by four rectangular field ditches, and two field ditches are parallel to each other. Under normal circumstances, the two field ditches along the length of the tobacco field are usually on the same horizontal plane, or there is only a small height difference, but under the mountainous and hilly landform environment, the two field ditches along the length of the tobacco field are prone to have a higher height difference. In this case, the transplanting and mulching integrated machine will always remain in an inclined state during operation. Once the bottom end of the transplanting cylinder 3 cannot be retracted after touching the hard layer, the entire transplanting and mulching integrated machine will be lifted by the hard layer. At this time, the transplanting and mulching integrated machine is in an inclined state, so the transplanting and mulching integrated machine is prone to tip over and fall. However, with the vertical sliding assembly 4 in the embodiment, since the bottom end of the transplanting cylinder 3 will rise after touching the hard layer at the bottom of the soft soil, the transplanting and mulching integrated machine will not be lifted, ensuring that the transplanting and mulching integrated machine can operate safely and stably.

[0045] In the scheme, by setting the vertical sliding assembly 4 and the fertilizing assembly 5, on the one hand, the vertical sliding assembly 4 enables the transplanting cylinder 3 to vertically ascend and descend relative to the connecting shaft 32, and then utilizes the feature that the transplanting cylinder 3 will rise when touching the hard layer at the bottom of the soft soil to open the fertilizing assembly 5, so that the fertilizing agent stored in the fertilizing assembly 5 can first enter the inside of the transplanting cylinder 3, and then the fertilizing agent is discharged from the transplanting cylinder 3 together with the tobacco seedlings, so that in the case of thin soft soil, the roots of the tobacco seedlings can be covered by the fertilizing agent, avoiding the roots of the tobacco seedlings from being exposed, and at the same time providing sufficient nutrients for the tobacco seedlings, improving the survival rate of the tobacco seedlings after transplanting. Moreover, due to the vertical ascending and descending structure design of the transplanting cylinder 3, the transplanting cylinder 3 will not lift the entire transplanting and mulching integrated machine when touching the hard layer, effectively avoiding the tipping and falling of the transplanting and mulching integrated machine, and improving the safety of the transplanting and mulching integrated machine during operation.

[0046] As shown in Figures 4 to 7 The side surface of the sleeve 41 is provided with a clearance 411, and the bottom end of the sleeve 41 is rotationally connected with a roller 45 adjacent to the clearance 411, and the number of the rollers 45 is two. The two ends of the movable plate 31 protrude from the two sides of the transplanting cylinder 3 and form a protruding part 311, as shown in Figure 5As shown, the number of the protrusions 311 is also two, and corresponds to the two rollers 45, which are above the protrusions 311, and when the transplanting cylinder 3 rises, the rollers 45 guide the protrusions 311 to move into the avoiding port 411. Specifically, in the case of the rising of the transplanting cylinder 3, the opening mode of the movable plate 31 is that when the transplanting cylinder 3 rises, the movable plate 31 rises together with the transplanting cylinder 3, so that the protrusions 311 are in contact with the rollers 45, and then with the continuous rising of the movable plate 31, the rollers 45 begin to roll, and can gradually adjust the originally inclined movable plate 31 to a substantially vertical state, that is, the movable plate 31 is opened, so that the fertilizer and tobacco seedlings in the inside of the transplanting cylinder 3 can be discharged. The avoiding port 411 is used to accommodate the movable plate 31 in the case of the rising of the transplanting cylinder 3.

[0047] As shown in Figures 3 to 5 , the vertical sliding assembly 4 includes a sleeve 41 sleeved on the outside of the transplanting cylinder 3, and in this embodiment, the sleeve 41 is a square cylinder, and the sleeve 41 is fixedly connected with the connecting shaft 32.

[0048] As shown in Figures 1 to 2 , the fertilizing assembly 5 includes a storage box 51 for storing the fertilizer and a discharge pipe 52 fixedly communicated at the bottom of the storage box 51, and as shown in Figure 9 , a valve 53 is arranged on the discharge pipe 52, and when the transplanting cylinder 3 rises to a predetermined height, the valve 53 is opened by the transplanting cylinder 3, so that the fertilizer can be discharged through the discharge pipe 52 and fall into the inside of the transplanting cylinder 3. In this embodiment, the storage box 51 is rotatably connected with the intermediate shaft 11 through a bearing, and because the weight of the storage box 51 below the intermediate shaft 11 is greater than the weight above the intermediate shaft 11, no matter how the intermediate shaft 11 rotates, the entire storage box 51 is always in the state as shown in Figure 2 ; further, an inlet can be arranged at the top of the storage box 51, and a sealing cover is threadedly connected on the inlet, and in the normal state, the sealing cover is threadedly connected at the position of the inlet to block the inlet, and when the fertilizer needs to be added, the sealing cover can be unscrewed, and the fertilizer can be put into the inside of the storage box 51 through the inlet.

[0049] As shown in Figures 10 to 12 , the valve 53 includes a valve plate 531 fixedly arranged at the bottom of the discharge pipe 52, a leakage port 532 formed between the bottom end of the discharge pipe 52 and the valve plate 531, and an opening and closing sleeve 533 sleeved on the discharge pipe 52 and slidable up and down, and as shown in Figure 10As shown, the opening and closing sleeve 533 blocks the material leakage hole 532 when it is in the low position to prevent the fertilizer from being discharged through the material leakage hole 532, but when the transplanting cylinder 3 rises, the lugs 534 push the opening and closing sleeve 533 to move upward to expose the material leakage hole 532. The lugs 534 are provided with two and are fixed on both sides of the opening and closing sleeve 533. When the transplanting cylinder 3 rises, the top end of the transplanting cylinder 3 will contact the lugs 534, then push the lugs 534 and the opening and closing sleeve 533 to move upward, thereby exposing the material leakage hole 532, so that the fertilizer can enter the inside of the transplanting cylinder 3 through the material leakage hole 532. The maximum distance between the two lugs 534 (the distance between the two ends away from each other) is less than the transverse length of the sleeve 41. Further, the upper surface of the valve plate 531 is a four-pyramid surface or a four-pyramid surface, so that the fertilizer can be uniformly discharged through the material leakage hole 532.

[0050] In the above scheme, the opening and closing sleeve 533 is provided to block the material leakage hole 532, and then the two lugs 534 are used to directly lift the opening and closing sleeve 533 to open the material leakage hole 532 when the transplanting cylinder 3 rises, so that the fertilizer is discharged into the inside of the transplanting cylinder 3. That is, the opening of the valve 53 does not need to set another driving structure, which reduces the actual cost. At the same time, since the opening of the valve 53 is controlled by the transplanting cylinder 3, the opening time of the valve 53 can be accurately controlled, and there is no case that the valve 53 cannot be opened in the case of soft soil being thin. The sensitivity of the valve 53 is high, and the stability is good. Further, since the upper surface of the valve plate 531 is a four-pyramid surface or a four-pyramid surface, the fertilizer can fall along the inner edge of the transplanting cylinder 3 to the bottom of the transplanting cylinder 3, that is, the coverage of the roots of the tobacco seedlings can be realized, and the tobacco seedlings can be prevented from being injured by the falling fertilizer. Further, the survival rate of the tobacco seedlings after transplanting is further improved.

[0051] As shown in Figure 12 The discharge pipe 52 is fixedly connected with the valve plate 531 through the guide rod 535 and the connecting plate 537. The guide rod 535 is vertically arranged, and the connecting plate 537 is horizontally arranged. Further, the second spring 536 is arranged between the discharge pipe 52 and the lug 534. The second spring 536 can contract to generate a downward elastic force after the opening and closing sleeve 533 is lifted by the transplanting cylinder 3. The downward elastic force can drive the transplanting cylinder 3 to quickly descend to the initial position, and also drive the opening and closing sleeve 533 to quickly recover to the low position to block the material leakage hole 532.

[0052] As shown in Figure 12As shown, the guide rod 535 is slidingly penetrated through the lug 534, so that the lug 534 and the opening and closing sleeve 533 can only be lifted along the axial direction of the guide rod 535, avoiding the opening and closing sleeve 53 being stuck on the outer surface of the discharging pipe 52, the second spring 536 is sleeved on the guide rod 535, so that the second spring 536 can be contracted along the axial direction, and the bottom end of the second spring 536 abuts against the lug 534, so that the elastic force generated by the second spring 536 after contraction can be transmitted to the opening and closing sleeve 533 through the lug 534.

[0053] As shown in Figure 5 and Figure 8 The inner surface of the sleeve 41 is fixed with the sliding rod 42, the side surface of the transplanting cylinder 3 is fixed with the sliding block 43 which is slidingly connected with the sliding rod 42, the first spring 44 is sleeved on the sliding rod 42, and the bottom end of the first spring 44 abuts against the sliding block 43, in the embodiment, four first springs 44 are arranged, and the elastic force generated by the four first springs 44 on the transplanting cylinder 3 is sufficient to make the transplanting cylinder 3 smoothly inserted into the soft soil, and only when the bottom end of the transplanting cylinder 3 touches the hard layer, the first spring 44 will be gradually contracted. Figure 5 As shown in

[0054] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mountain hilly tobacco field transplanting and mulching integrated machine, comprising an integrated machine body and a transplanting device arranged on the integrated machine body, the transplanting device comprising a rotating disc (1), an opening and closing piece (2) and a transplanting cylinder (3), wherein, The bottom of the transplanting cylinder (3) is provided with a movable plate (31), characterized in that: Further comprising a vertical sliding assembly (4), the vertical sliding assembly (4) comprises a sleeve (41) slidingly sleeved outside the transplanting cylinder (3), the sleeve (41) is fixedly connected with the connecting shaft (32) and connected with the rotating disc (1) through the connecting shaft (32); the middle shaft (11) of the rotating disc (1) is rotatably connected with a fertilizing assembly (5) through a bearing; When the transplanting cylinder (3) rotates with the rotating disc (1), it always keeps a vertical downward state; when the transplanting cylinder (3) rotates to the lowest position, the bottom end thereof is inserted into the soil, the movable plate (31) cooperates with the curved slide rail on the opening and closing part (2) to complete opening and push away the surrounding soil to form a soil pit, the tobacco seedlings in the transplanting cylinder (3) fall into the soil pit after the movable plate (31) is opened; when the thickness of soft soil is small during the process that the transplanting cylinder (3) is inserted into the soil, the transplanting cylinder (3) can be vertically raised relative to the sleeve (41) when it touches the hard layer at the bottom of the soft soil, and the transplanting cylinder (3) opens the valve (53) at the bottom of the fertilizing assembly (5) when it is raised to a predetermined height, so that the fertilizer discharged from the fertilizing assembly (5) can cover the roots of the tobacco seedlings.

2. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 1, characterized in that: The fertilizing assembly (5) comprises a storage tank (51) for storing fertilizing agent and a discharge pipe (52) fixedly connected at the bottom of the storage tank (51), and the discharge pipe (52) is provided with a valve (53).

3. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 1, characterized in that: One side surface of the sleeve (41) is provided with an avoiding opening (411), and a roller (45) is rotatably connected to the bottom end of the sleeve (41) adjacent to the avoiding opening (411); both ends of the movable plate (31) protrude from both sides of the transplanting cylinder (3) and form protruding parts (311), and the roller (45) is located above the protruding parts (311), and the roller (45) guides the protruding parts (311) to move into the avoiding opening (411) when the transplanting cylinder (3) is raised.

4. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 2, characterized in that: The valve (53) comprises a valve plate (531) fixedly arranged at the bottom of the discharge pipe (52), a leakage opening (532) formed between the bottom end of the discharge pipe (52) and the valve plate (531), and an opening and closing sleeve (533) sleeved on the discharge pipe (52) and slidable up and down, two lugs (534) are fixedly arranged at both sides of the opening and closing sleeve (533), the opening and closing sleeve (533) blocks the leakage opening (532) when it is in a low position, and the opening and closing sleeve (533) is pushed upward by the lugs (534) to expose the leakage opening (532) when the transplanting cylinder (3) is raised.

5. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 4, characterized in that: The upper surface of the valve plate (531) is a quadrangular pyramid surface or a quadrangular platform surface.

6. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 4, characterized in that: The discharge pipe (52) is fixedly connected with the valve plate (531) through a guide rod (535) and a connecting plate (537), the guide rod (535) is vertically arranged, and the connecting plate (537) is horizontally arranged.

7. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 6, characterized in that: A second spring (536) is arranged between the discharge pipe (52) and the lug (534).

8. The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 7, characterized in that: The guide rod (535) slides through the lug (534), the second spring (536) is sleeved on the guide rod (535), and the bottom end of the second spring (536) abuts against the lug (534). 9.The mountain hilly tobacco field transplanting and mulching integrated machine according to claim 1, characterized in that: The inner surface of the sleeve (41) is fixed with a sliding rod (42), the side surface of the transplanting cylinder (3) is fixed with a sliding block (43) in sliding connection with the sliding rod (42), the sliding rod (42) is sleeved with a first spring (44), and the bottom end of the first spring (44) abuts against the sliding block (43).

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