Transplanting device for sand land and seedling planting machine

Abstract

The invention discloses a transplanting device and a seedling planting machine for a sand land, and relates to the technical field of agricultural machinery, the transplanting device for the sand land comprises a cylindrical structure and a conical structure; the top and the bottom of the cylindrical structure are open, the bottom of the cylindrical structure is connected with the large end of the conical structure, the conical structure comprises a plurality of arc-shaped pieces, and the arc-shaped pieces are hinged to the cylindrical structure so that the conical structure can be in a closed state and an open state. The edges of the multiple arc-shaped pieces in the closed state are sequentially pressed and overlapped, and the overlapping degree is gradually reduced from the large end to the small end till the overlapping degree is zero. Dry sand on the upper edge of a seedling pit can be prevented from flowing into the pit bottom, soil humidity and pit depth are kept, the survival rate of planted seedlings is further increased, in addition, the invention further provides a seedling planting machine, the seedling planting machine can achieve automatic seedling planting, and the seedling planting efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to a transplanter for sandy land and a seedling planting machine. BACKGROUND

[0002] The transplanter is a device for directly sowing seedlings. The conical structure at the bottom of the existing transplanter is usually composed of multiple arc-shaped pieces. The conical structure can be opened and closed. During the process of inserting into the soil, the conical structure is in a closed state. When it is inserted into place, the conical structure is opened, so that the seedlings inside the transplanter can fall into the soil, and then the transplanting process is completed. However, when the transplanter is used for transplanting in sandy land, the existing transplanter is not suitable. Therefore, there is an urgent need for a new scheme to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a transplanter for sandy land and a seedling planting machine to solve the problems existing in the prior art and improve the success probability of transplanting in sandy land.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme: The present application provides a transplanter for sandy land, comprising: a cylindrical structure and a conical structure; the top and bottom of the cylindrical structure are provided with openings, the bottom of the cylindrical structure is connected to the large end of the conical structure, the top of the cylindrical structure is used for putting seedlings, the conical structure comprises multiple arc-shaped pieces, each arc-shaped piece is hinged to the cylindrical structure so that the conical structure has a closed state and an open state, and the edges of the multiple arc-shaped pieces in the closed state are sequentially overlapped, and the degree of overlap gradually decreases from the large end to the small end until zero.

[0005] Preferably, the conical structure comprises three arc-shaped pieces.

[0006] The present application also provides a seedling planting machine for sandy land, comprising: a driving device, a vehicle body and a transplanter as described above; the transplanter and the driving device are arranged on the vehicle body, and the driving device can drive the transplanter to move up and down and drive the conical structure to open and close, so as to plant seedlings on the ground through the transplanter.

[0007] Preferably, the driving device comprises a lifting driving device and an opening and closing driving device, the lifting driving device can drive the transplanter to move up and down, and the opening and closing driving device can drive the conical structure to open and close, when the lifting driving device drives the transplanter to move downward to the lower dead point, the opening and closing driving device drives the conical structure to open, and when the lifting driving device drives the transplanter to move upward, the opening and closing driving device drives the conical structure to close before the conical structure completely separates from the ground and reaches the upper dead point.

[0008] Preferably, it further comprises two covering discs; the two covering discs are opposite and arranged at the tail of the vehicle body, and the two covering discs are used to push the soil on both sides of the seedling after transplanting towards the seedling.

[0009] Preferably, it further comprises two rolling wheels; the two rolling wheels are arranged at the tail of the vehicle body and behind the covering discs, and the two rolling wheels are used to roll past from both sides of the seedling.

[0010] Preferably, the power source of the lifting driving device and the opening and closing driving device is the wheel shaft of the vehicle body, the lifting driving device comprises a first transmission assembly; the opening and closing driving device comprises a second transmission assembly, the transmission assembly is used to convert the rotating torque of the wheel shaft of the vehicle body into power for driving the up and down movement of the transplanter; the second transmission assembly is used to convert the rotating torque of the wheel shaft of the vehicle body into the opening and closing power of the conical structure.

[0011] Preferably, the first transmission assembly comprises a first driving wheel disc, a toothless gear, a driven gear and a first connecting rod, the toothless gear is in transmission connection with the wheel shaft, the toothless gear and the driven gear are in engagement, the first driving wheel disc and the driven gear are coaxially fixedly connected, one end of the first connecting rod is eccentrically connected to one side of the first driving wheel disc, and the other end is connected with the transplanter, the toothless gear has two toothless parts and two toothed parts, and the two toothed parts are respectively used to engage with the driven gear to drive the transplanter to descend and ascend; A driving sleeve is movably arranged on the cylindrical structure, the driving sleeve is connected with the plurality of arc-shaped pieces, and the driving sleeve drives the arc-shaped pieces to open when moving upwards and to close when moving downwards; The second transmission assembly comprises a second driving wheel disc, a second connecting rod and a connecting rope, the second driving wheel disc is coaxially fixedly connected with the toothless gear, the second driving wheel disc is a cam, the circumferential edge of the second driving wheel disc is divided into three parts, i.e., a small-diameter edge, a large-diameter edge and a transition edge connecting the small-diameter edge and the large-diameter edge, the first end of the second connecting rod is hingedly connected to the vehicle body and parallel to the axis of the wheel shaft, the second end of the second connecting rod extends towards the second driving wheel disc and extends from above the second driving wheel disc to the other side of the second driving wheel disc, one end of the connecting rope is connected with the second end of the second connecting rod, and the other end is connected with the driving sleeve; A limiting part is fixedly arranged on the outer wall of the cylindrical structure above the driving sleeve, and a spring is arranged between the limiting part and the driving sleeve; Wherein, the large-diameter edge is used to squeeze the second connecting rod as the second drive wheel rotates, so that its second end moves upward and pulls the drive sleeve upward through the connecting rope; the spring is used to drive the drive sleeve downward by its own elastic force when the second drive wheel rotates to the point where the large-diameter edge no longer squeezes the second connecting rod.

[0012] Preferably, it also includes an automatic seedling feeding device, which is capable of intermittently feeding seedlings into the transplanter.

[0013] Preferably, the automatic seedling feeding device includes a conveying device and a guiding device. The conveying device is used to transport seedlings toward the guiding device, and the guiding device is used to guide the seedlings so that their roots face downwards and they move into the transplanter under their own weight.

[0014] The present invention achieves the following technical effects compared to the prior art: The conical structure at the bottom of the transplanter provided by this invention includes multi-lobed arc-shaped pieces. In the closed state, the edges of the multi-lobed arc-shaped pieces are pressed and overlapped sequentially, and the degree of overlap gradually decreases from the large end to the small end until the degree of overlap is zero. Since the multi-lobed arc-shaped pieces have a certain degree of overlap, and the degree of overlap gradually changes from the large end to the small end, when the conical structure is opened, the gap between any two adjacent arc-shaped pieces gradually opens from bottom to top. This avoids the dry sand from falling directly into the root system of the seedling from the upper gap when the gaps in the upper and lower parts open at the same time, which would affect the subsequent growth of the seedling and thus improve the survival rate of transplanting on sandy land.

[0015] The seedling planter for sandy land provided by this invention achieves the purpose of mechanized seedling planting and improves seedling planting efficiency.

[0016] In a more specific solution, the wheel axle is used as the lifting power source for the transplanter and the opening and closing power source for the conical structure. This not only achieves mechanized seedling planting, but also eliminates the need to equip the transplanter with a separate drive source, thus reducing equipment costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a transplanter for sandy land provided in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the conical structure; Figure 3 This is a schematic diagram of two curved sheets being pressed and overlapped. Figure 4 for Figure 1 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of a seedling planting machine used in sandy areas. Figure 6 A schematic diagram showing the four states of the seedling planter during operation; Figure 7 This is a schematic diagram of the opening and closing drive device when the transplanter is in the closed state. Figure 8 A schematic diagram of the opening and closing drive device when the transplanter is in the open state; Figure 9 This is a structural schematic diagram of the friction-reducing wheel, the second connecting rod, and the second drive wheel. Figure 10 A schematic diagram of a structure for setting multiple hinges on the first drive wheel disk; Figure 11 A schematic diagram of a structure for setting an extension rod on the first drive wheel disk and setting multiple hinges on the extension rod; In the diagram: 1-Cylindrical structure; 2-Conical structure; 3-Hinged rod; 5-Arc-shaped plate; 6-Overlapping part; 7-Transfer device; 8-Seedling; 9-Vehicle body; 10-Guiding device; 13-Soil covering plate; 14-Pressing wheel; 15-Transplanter; 16-Drive device; 17-Missing gear; 18-First connecting rod; 19-Driven gear; 20-First drive wheel; 21-Second drive wheel; 22-Second connecting rod; 23-Connecting rope; 24-Drive sleeve; 25-Spring; 26-Sliding rod; 27-Limiting part; 28-Large diameter edge; 29-Small diameter edge; 30-Friction reduction wheel; 31-Lifting mechanism; 32-Hinged part; 33-Extension rod; 100-Ground; 101-First meshing tooth; 102-Second meshing tooth; 103-Third meshing tooth; 104-Fourth meshing tooth. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The following is combined Figures 1-3Embodiment One is described.

[0022] The embodiment provides a transplanter 15 for sandy land, which comprises a cylindrical structure 1 and a conical structure 2; the top and bottom of the cylindrical structure 1 are both open, the bottom of the cylindrical structure 1 is connected with the large end of the conical structure 2, the top of the cylindrical structure 1 is used for putting seedlings 8, and the conical structure 2 comprises multi-petal arc-shaped pieces 5, the arc-shaped pieces 5 are hinged to the cylindrical structure 1 so that the conical structure 2 has a closed state and an open state, the edges of the multi-petal arc-shaped pieces 5 in the closed state are sequentially overlapped, and the overlapping degree gradually decreases from the large end to the small end until zero, that is, the size of the overlapping part 6 in the closed state gradually changes. Figure 3

[0023] The transplanter 15 provided by the embodiment has the following advantages: because the multi-petal arc-shaped pieces 5 have a certain overlapping degree, and the overlapping degree gradually changes from the large end to the small end, when the conical structure 2 is opened, the gap between any two adjacent arc-shaped pieces 5 gradually opens from bottom to top, thereby avoiding the situation that when the gaps of the upper and lower parts are simultaneously opened, dry sand directly falls into the root system of the seedlings 8 from the upper gap, which affects the subsequent growth of the seedlings 8, and the success probability of transplanting on the sandy land is improved.

[0024] In some embodiments, the conical structure 2 comprises three-petal arc-shaped pieces 5, and in some examples, the conical structure 2 can also comprise four-petal arc-shaped pieces 5.

[0025] The following will be described with reference to the accompanying drawings. Figures 1-9 Embodiment Two is described.

[0026] Embodiment Two The embodiment provides a seedling planting machine for sandy land, which comprises a driving device 16, a vehicle body 9 and the transplanter 15 in the above embodiment; the transplanter 15 and the driving device 16 are both arranged on the vehicle body 9, and the driving device 16 can drive the transplanter 15 to move up and down and drive the conical structure 2 to open and close, so as to realize the planting of the seedlings 8 on the ground 100 through the transplanter 15.

[0027] The embodiment realizes fully mechanized seedling planting, thereby improving the seedling planting efficiency.

[0028] In some embodiments, the embodiment of the present application further comprises two soil covering discs 13; the two soil covering discs 13 are arranged opposite to each other at the tail of the vehicle body 9, and the two soil covering discs 13 are used for pushing the soil on both sides of the seedlings 8 to the seedlings 8.

[0029] The embodiment can avoid the weakness of the soil or sand above the root system of the seedlings 8, thereby further improving the survival rate of the transplanting.

[0030] In some embodiments, the embodiment of the present application further comprises two compacting wheels 14; the two compacting wheels 14 are arranged at the tail of the vehicle body 9 and located behind the soil covering discs 13, and the two compacting wheels 14 are used for compacting from both sides of the seedlings 8. ​

[0031] The embodiment can compact the soil on both sides of the seedlings 8, thereby further improving the survival rate.

[0032] In some embodiments, the driving device 16 includes a lifting driving device and an opening and closing driving device. The lifting driving device can drive the transplanter 15 to move up and down, and the opening and closing driving device can drive the conical structure 2 to open and close. When the lifting driving device drives the transplanter 15 to move downward to the lower dead point, the opening and closing driving device drives the conical structure 2 to open. When the lifting driving device drives the transplanter 15 to move upward, the conical structure 2 is completely separated from the ground 100 before reaching the upper dead point, and the opening and closing driving device drives the conical structure 2 to close.

[0033] Specifically, the power source of the lifting driving device is the wheel shaft of the vehicle body 9. The lifting driving device includes a first transmission assembly. The opening and closing driving device includes a second transmission assembly. The transmission assembly is used to convert the rotational torque of the wheel shaft of the vehicle body 9 into the power for driving the transplanter 15 to move horizontally and up and down. The second transmission assembly is used to convert the rotational torque of the wheel shaft of the vehicle body 9 into the power for driving the conical structure 2 to open and close.

[0034] More specifically, the first transmission assembly includes a first driving wheel disc 20, a missing tooth gear 17, a driven gear 19, and a first connecting rod 18. The missing tooth gear 17 is in transmission connection with the wheel shaft. The missing tooth gear 17 and the driven gear 19 are in engagement. The first driving wheel disc 20 is coaxially fixedly connected with the driven gear 19. One end of the first connecting rod 18 is eccentrically connected to one side of the first driving wheel disc 20, and the other end is connected with the transplanter 15. The missing tooth gear 17 has two missing tooth parts and two toothed parts. The two toothed parts are respectively used to engage with the driven gear 19 to drive the transplanter 15 to descend and ascend.

[0035] A driving sleeve 24 is movably sleeved on the cylindrical structure 1. The driving sleeve 24 is connected with the multi-petal arc-shaped pieces 5. When the driving sleeve 24 moves upward, the arc-shaped pieces 5 are opened. When the driving sleeve 24 moves downward, the arc-shaped pieces 5 are closed.

[0036] The second transmission assembly includes a second driving wheel disc 21, a second connecting rod 22, and a connecting rope 23. The second driving wheel disc 21 is coaxially fixedly connected with the missing tooth gear 17. The second driving wheel disc 21 is a cam. The circumferential edge of the second driving wheel disc 21 is divided into three parts, which are a small-diameter edge 29, a large-diameter edge 28, and a transition edge connecting the small-diameter edge 29 and the large-diameter edge 28. The first end of the second connecting rod 22 is hingedly connected to the vehicle body 9 around an axis parallel to the wheel shaft. The second end of the second connecting rod 22 extends toward the second driving wheel disc 21 and extends from above the second driving wheel disc 21 to the other side of the second driving wheel disc 21. One end of the connecting rope 23 is connected with the second end of the second connecting rod 22, and the other end is connected with the driving sleeve 24.

[0037] A limiting part 27 is fixedly arranged on the outer wall of the cylindrical structure 1 above the driving sleeve 24, and a spring 25 is arranged between the limiting part 27 and the driving sleeve 24.

[0038] Wherein, the large-diameter edge 28 is used to press the second connecting rod 22 to move the second end upward and pull the driving sleeve 24 upward through the connecting rope 23 when the second driving wheel disc 21 rotates; the spring 25 is used to drive the driving sleeve 24 to move downward through the spring force when the second driving wheel disc 21 rotates to the position where the large-diameter edge 28 does not press the second connecting rod 22.

[0039] In the initial state, the top end of the first connecting rod 18 is located at the highest point, at this time, the conical structure 2 of the transplanter 15 is located above the ground 100 and at the upper dead point; when working, the tractor head drives the vehicle body 9 to move, the rotation of the wheels of the vehicle body 9 drives the rotation of the wheel shaft, the rotation of the wheel shaft drives the rotation of the cogwheel 17, the cogwheel 17 drives the rotation of the driven gear 19 through one of the toothed parts, and the driven gear 19 drives the rotation of the first driving wheel disc 20 by half a circle; in this process, the end of the first connecting rod 18 eccentrically connected to one side of the first driving wheel disc 20 moves from the highest point to the lowest point along with the first driving wheel disc 20, and the transplanter 15 moves from the upper dead point to the lower dead point and realizes that the conical structure 2 is inserted into the ground 100; with the rotation of the cogwheel 17, when the other toothed part engages with the driven gear 19, the driven gear 19 is continuously driven to rotate the remaining half a circle; in this process, the end of the first connecting rod 18 eccentrically connected to one side of the first driving wheel disc 20 moves from the lowest point to the highest point along with the first driving wheel disc 20, and the transplanter 15 moves from the lower dead point to the upper dead point and realizes that the conical structure 2 is pulled out of the ground 100.

[0040] In the above process, after the transplanter 15 moves to the lower dead point and before the conical structure 2 is pulled out of the ground 100, the rotation of the second driving wheel disc 21 makes the large-diameter edge 28 press the second connecting rod 22, so that the second connecting rod 22 can pull the driving sleeve 24 upward through the connecting rope 23, and overcome the spring force of the spring 25 to drive the conical structure 2 to open, so that the seedlings 8 fall into the ground 100 from the opened conical structure 2, and before the transplanter 15 moves to the upper dead point, the rotation of the second driving wheel disc 21 makes the large-diameter edge 28 rotate to the position where it does not press the second connecting rod 22, at this time, under the action of the spring force of the spring 25, the driving sleeve 24 drives the conical structure 2 to close, so that after the transplanter 15 reaches the upper dead point, the seedlings 8 can be automatically or manually put into the interior of the transplanter 15.

[0041] The above is a complete planting process, and the above process can be repeated subsequently.

[0042] It should be noted that, because the process of inserting and pulling out the conical structure 2 into and out of the ground 100 is extremely short, the horizontal displacement of the transplanter 15 relative to the ground 100 can be ignored.

[0043] For ease of understanding, see Figure 6 In the four state diagrams, the initial state, the lower dead point state, the lifting state and the end state are respectively shown; wherein, when the missing gear 17 rotates to the first meshing tooth 101 on it and contacts the driven gear 19, the transplanter 15 starts to move downward, when the second meshing tooth 102 rotates to disengage from the driven gear 19, the transplanter 15 moves to the lower dead point, when the third meshing tooth 103 rotates to contact the driven gear 19, the transplanter 15 starts to move upward, when the fourth meshing tooth 104 rotates to disengage from the driven gear 19, the transplanter 15 moves to the upper dead point, and a round of seedling planting is completed.

[0044] In actual application, the opening and closing speed of the tapered structure 2 can be adjusted by adjusting the curvature of the transition edge to adapt to the sand planting operation.

[0045] The embodiment provides a driving mode using a wheel shaft as a power source, thereby saving energy and equipment manufacturing cost.

[0046] Of course, in some embodiments, an electric cylinder or a pneumatic cylinder, a hydraulic cylinder or the like driving component can be separately arranged to drive the transplanter 15 to move upward and downward, thereby achieving the purpose of inserting the transplanter 15 into the sand.

[0047] As for the opening and closing of the tapered structure 2, an electric cylinder or a pneumatic cylinder, a hydraulic cylinder or the like driving component can be used to drive the arc-shaped sheet 5 to turn upward and downward, and then the control system is used to coordinate the opening and closing action of the tapered structure 2 and the beat of the transplanter 15 to move upward and downward, thereby achieving a complete seedling planting process.

[0048] In some embodiments, a transmission gear set is arranged on one side of the missing gear 17, one transmission gear in the transmission gear set is fixedly connected with the missing gear 17 in a coaxial manner, and one transmission gear in the transmission gear set is fixedly connected with the wheel shaft in a coaxial manner, and the missing gear 17 is in transmission connection with the wheel shaft through the transmission gear set. The transmission ratio is determined by the specific gear combination of the transmission gear set, which needs to be determined in the actual engineering stage.

[0049] In some embodiments, the driving sleeve 24 is fixedly provided with a sliding rod 26 at the top, the sliding rod 26 is vertically arranged, the spring 25 is sleeved on the sliding rod 26, and the top of the sliding rod 26 is connected with the connecting rope 23.

[0050] In some embodiments, a friction-reducing wheel 30 is further included, the friction-reducing wheel 30 is rotatably arranged on the second connecting rod 22, and the friction-reducing wheel 30 is in contact with the edge of the second driving disc 21. This embodiment reduces the friction between components and prolongs the service life of the device.

[0051] In some embodiments, in order to improve the stability of the device, the friction-reducing wheel 30 can be provided as a circumferential edge with a groove structure, and the edge of the second driving wheel disc 21 is embedded in the groove. Of course, a limiting structure can also be provided to limit the lateral displacement of the second connecting rod 22 and the friction-reducing wheel 30, thereby improving the stability.

[0052] In some embodiments, the driving sleeve 24 is movably connected to the conical structure 2 through the hinged rod 3, so as to realize the purpose of moving the sleeve up to drive the conical structure 2 to open.

[0053] It should be noted that, since the hinged rod 3 is used to connect the driving sleeve 24 and the conical structure 2, the connecting structure will affect the depth of the conical structure 2 inserted into the ground. Therefore, in this embodiment, the stroke of the transplanting device and the length of the conical structure 2 are controlled to avoid the conical structure 2 from being inserted too deep.

[0054] In some embodiments, the driving sleeve 24 is also movably connected to the conical structure 2 through a plurality of short steel wire ropes, so as to realize the purpose of moving the sleeve up to drive the conical structure 2 to open.

[0055] In this embodiment, the bottom of the steel wire rope is directly connected to the connecting part on the outer wall of the conical structure 2. The connecting structure of this embodiment has less effect on the process of the conical structure 2 being inserted into the ground, thereby enabling the conical structure 2 to be completely inserted into the ground.

[0056] In some embodiments, the embodiment of the present application also includes an automatic seedling throwing device, which can intermittently throw seedlings into the transplanting device 15.

[0057] Specifically, the automatic seedling throwing device includes a conveying device 7 and a guiding device 10. The conveying device 7 is used to convey the seedlings 8 to the guiding device 10, and the guiding device is used to guide the seedlings 8 to have their roots downward and move into the transplanting device 15 under the action of their own gravity.

[0058] The embodiment of the present application realizes the purpose of automatic seedling throwing, thereby saving labor. The worker only needs to place the seedlings 8 on the conveying device 7, without the need to throw the seedlings 8 into the transplanting device 15 according to the rhythm, thereby saving the energy of the worker.

[0059] In some embodiments, the vehicle body 9 is movably arranged at the head or tail of the tractor through a lifting mechanism 31, and the lifting mechanism 31 is used to drive the vehicle body 9 and the components thereon to be lifted and lowered as a whole. Specifically, in use, the vehicle body 9 is lifted before reaching the target land, and the vehicle body 9 is lowered after reaching the land, so that the wheels of the vehicle body 9 are in contact with the ground 100 and can rotate to drive the wheel shaft to rotate, thereby enabling the wheel shaft to serve as a power output source to output power.

[0060] In some embodiments, in order to facilitate the adjustment of the planting depth, the hinged structure of the first connecting rod 18 and the first driving wheel 20 is detachable, a plurality of hinged parts 32 extending radially along the first driving wheel 20 are arranged on the first driving wheel 20, and the first connecting rod 18 is detachably arranged, so as to facilitate the connection of the hinged parts 32 with different eccentric degrees by using the first connecting rods 18 with different lengths. Since the hinged parts 32 have different eccentric degrees, the planting depth is different when the different hinged parts 32 are connected. Specifically, there are two ways. The first way is that the hinged parts 32 are directly arranged on one side of the first driving wheel 20, as shown in FIG. 16. The second way is that an extension rod 33 is arranged on one side of the first driving wheel 20, and the hinged parts 32 are arranged on the extension rod 33, as shown in FIG. 17. Figure 10 Figure 11

[0061] The principles and implementation manners of the present application are described by using specific examples in the present application. The above description of the examples is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges can be changed. In conclusion, the content of the present description should not be understood as a limitation of the present application.​​

Claims

1. A transplanter for sandy soil, characterized by: include: The cylindrical structure and the conical structure are both open at the top and bottom. The bottom of the cylindrical structure is connected to the large end of the conical structure. The top of the cylindrical structure is used to insert seedlings. The conical structure includes multiple arc-shaped petals. Each arc-shaped petal is hinged to the cylindrical structure so that the conical structure has a closed state and an open state. In the closed state, the edges of the multiple arc-shaped petals overlap sequentially, and the degree of overlap gradually decreases from the large end to the small end until it reaches zero.

2. The transplanter for sandy land according to claim 1, characterized by: The conical structure includes three arc-shaped lobes.

3. A planter for sandy soils, characterized by: include: The vehicle includes a drive unit, a vehicle body, and a transplanter as described in any one of claims 1 to 2; both the transplanter and the drive unit are mounted on the vehicle body, and the drive unit is capable of driving the transplanter to move up and down and the conical structure to open and close so as to plant the seedlings on the ground through the transplanter.

4. The planter for sandy soil according to claim 3, characterized in that: The driving device includes a lifting driving device and an opening and closing driving device. The lifting driving device can drive the transplanter to move up and down, and the opening and closing driving device can drive the conical structure to open and close. When the lifting driving device drives the transplanter to move down to the bottom dead center, the opening and closing driving device drives the conical structure to open. When the lifting drive device drives the transplanter to move upward, so that the conical structure is completely off the ground and before it reaches the top dead center, the opening and closing drive device drives the conical structure to close.

5. The planter for sandy soils of claim 4, wherein: It also includes two soil covering trays; the two soil covering trays are positioned opposite each other at the rear of the vehicle body, and the two soil covering trays are used to push the soil on both sides of the seedling towards the seedling after planting.

6. The planter for sandy soils of claim 5, wherein: It also includes two rollers; the two rollers are located at the rear of the vehicle body and behind the soil covering plate, and the two rollers are used to roll over the seedlings from both sides.

7. The planter for sandy soil according to claim 4, characterized in that: The power source for both the lifting drive device and the opening and closing drive device is the wheel axle of the vehicle body. The lifting drive device includes a first transmission component; the opening and closing drive device includes a second transmission component. The transmission component is used to convert the rotational torque of the wheel axle of the vehicle body into the power to drive the transplanter to move up and down. The second transmission component is used to convert the rotational torque of the wheel axle of the vehicle body into the opening and closing power of the conical structure.

8. The planter for sandy soils of claim 7, wherein: The first transmission assembly includes a first drive wheel, a missing gear, a driven gear, and a first connecting rod. The missing gear is connected to the wheel axle and meshes with the driven gear. The first drive wheel and the driven gear are coaxially fixedly connected. One end of the first connecting rod is eccentrically connected to one side of the first drive wheel, and the other end is connected to the transplanter. The missing gear has two missing teeth and two toothed parts. The two toothed parts are respectively used to mesh with the driven gear to drive the transplanter to descend and ascend. A drive sleeve is movably fitted onto the cylindrical structure. The drive sleeve is connected to the multi-lobed arc-shaped piece. When the drive sleeve moves upward, it causes the arc-shaped piece to open. When it moves downward, it causes the arc-shaped piece to close. The second transmission assembly comprises a second driving wheel disc, a second connecting rod and a connecting rope, the second driving wheel disc and the cogwheel are coaxially fixedly connected, the second driving wheel disc is a cam, the circumferential edge of the second driving wheel disc is divided into three parts, which are a small-diameter edge, a large-diameter edge and a transition edge connecting the small-diameter edge and the large-diameter edge, the first end of the second connecting rod is hingedly connected to the vehicle body around an axis parallel to the wheel shaft, the second end of the second connecting rod extends towards the second driving wheel disc and extends from above the second driving wheel disc to the other side of the second driving wheel disc; one end of the connecting rope is connected to the second end of the second connecting rod, and the other end is connected to the driving sleeve; A limiting portion is fixedly arranged on the outer wall of the cylindrical structure above the driving sleeve, and a spring is arranged between the limiting portion and the driving sleeve; The large-diameter edge is used to press the second connecting rod to move the second end thereof upward and pull the driving sleeve upward through the connecting rope when the second driving wheel disc rotates; and the spring is used to drive the driving sleeve to move downward through the spring force when the second driving wheel disc rotates to the position where the large-diameter edge does not press the second connecting rod.

9. The planter for sandy soil according to claim 3, characterized in that: The automatic seedling throwing device can intermittently throw seedlings into the transplanter.

10. The planter for sandy soils of claim 9, wherein: The automatic seedling throwing device comprises a conveying device and a guiding device, the conveying device is used to convey seedlings to the guiding device, and the guiding device is used to guide the seedlings to move to the transplanter with the roots downward under the action of gravity.

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